/* ===== 来客牛 品牌官网 - 高端设计 ===== */

/* --- CSS Variables --- */
:root {
  --primary: #2563EB;
  --primary-light: #2563EB;
  --primary-dark: #1E40AF;
  --secondary: #0891B2;
  --secondary-light: #0891B2;
  --accent: #D97706;
  --accent-light: #F59E0B;
  --gradient-1: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  --gradient-2: linear-gradient(135deg, #1D4ED8 0%, #2563EB 45%, #0891B2 100%);
  --gradient-3: linear-gradient(135deg, #0891B2 0%, #06B6D4 100%);
  --gradient-hero: linear-gradient(160deg, #FFFFFF 0%, #F5F9FF 35%, #F7FCFE 70%, #FFFFFF 100%);
  --gradient-card: linear-gradient(145deg, rgba(37, 99, 235, 0.07) 0%, rgba(6, 182, 212, 0.05) 100%);
  --text-primary: #1B2A4A;
  --text-secondary: #4B5B74;
  --text-muted: #7C8798;
  --bg-dark: #F7F7FB;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --border-color: rgba(37, 99, 235, 0.14);
  --border-glow: rgba(37, 99, 235, 0.35);
  --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.12);
  --shadow-card: 0 12px 40px rgba(37, 99, 235, 0.08);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-sans: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.72;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  text-decoration: none;
  color: inherit;
}

ul { list-style: none; }

img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #F8FAFC 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* --- Particle Background --- */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: #FFFFFF;
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
  padding: 16px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 28px;
}

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 800;
}

.navbar .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  color: #fff;
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.3);
}

.navbar .logo-text {
  color: #2563EB;
}

/* 商标右上标 ® */
.logo-reg {
  font-size: 0.5em;
  font-weight: 800;
  vertical-align: super;
  line-height: 0;
  margin-left: 1px;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar .logo-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  line-height: 1.2;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex: 1;
  gap: 36px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links .nav-ico {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  transition: transform 0.25s ease, color 0.25s ease, filter 0.25s ease;
}

.nav-links a:hover .nav-ico {
  transform: translateY(-1px) scale(1.1);
  color: #2563EB;
  filter: drop-shadow(0 2px 4px rgba(37, 99, 235, 0.35));
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-btn {
  padding: 10px 28px;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.35);
  border-radius: 50px;
  color: #2563EB;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.18);
}

/* 覆盖 .nav-links a 的默认文字色，确保免费试用按钮文字为品牌紫 */
.nav-links .nav-btn {
  color: #2563EB;
}

/* 免费试用按钮：已去除悬浮效果
.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.35);
  background: #EFF6FF;
}
*/

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  width: 28px;
  height: 2.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-hero);
  overflow: visible;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(37, 99, 235, 0.028) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 50%, rgba(6, 182, 212, 0.02) 0%, transparent 50%);
  animation: heroGlow 12s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-5%, -5%) scale(1.1); }
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--primary-light);
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--secondary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* ===== Navbar Badge (移至导航栏) ===== */
.navbar-badge {
  margin-bottom: 0;
  margin-left: 0;
  margin-top: 3px;
  padding: 3px 10px;
  font-size: 0.68rem;
  white-space: nowrap;
  flex-shrink: 0;
}

@media (max-width: 992px) {
  .navbar-badge {
    display: none;
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero h1 .gradient-text {
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero h1 .highlight {
  background: var(--gradient-3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  display: inline-block;
  font-size: 0.57em;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.hero-tagline .highlight,
.hero-tagline .gradient-text {
  font-weight: 800;
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 540px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.btn-primary {
  padding: 16px 40px;
  background: var(--gradient-1);
  border: none;
  border-radius: 50px;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.45);
}

.btn-secondary {
  padding: 16px 40px;
  background: transparent;
  border: 1px solid rgba(37, 99, 235, 0.35);
  border-radius: 50px;
  color: var(--primary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
  transform: translateY(-3px);
}



/* --- Hero Visual (精准布局重建) --- */
.hero-visual {
  position: relative;
  animation: fadeInRight 1s ease 0.2s both;
}

.hero-visual-inner {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 480px;
  margin-left: auto;
}

/* 背景光晕 */
.hv-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200px;
  height: 200px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, rgba(6,182,212,0.04) 40%, transparent 70%);
  animation: hvGlow 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes hvGlow {
  0%, 100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.6; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

/* === 中心 AI 核心 === */
.hv-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hv-core-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  border: 1.5px solid;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hv-cr-1 {
  width: 100%;
  height: 100%;
  border-color: rgba(37,99,235,0.15);
  animation: hvSpin 12s linear infinite;
}

.hv-cr-2 {
  width: 78%;
  height: 78%;
  border-color: rgba(6,182,212,0.1);
  border-style: dashed;
  animation: hvSpin 8s linear infinite reverse;
}

.hv-cr-3 {
  width: 55%;
  height: 55%;
  border-color: rgba(245,158,11,0.06);
  animation: hvSpin 6s linear infinite;
}

@keyframes hvSpin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.hv-core-icon {
  position: relative;
  z-index: 2;
  color: var(--primary-light);
  opacity: 0.9;
  animation: hvCoreFloat 4s ease-in-out infinite;
}

.hv-core-label {
  position: relative;
  z-index: 2;
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 2px;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 2px;
  animation: hvCoreFloat 4s ease-in-out infinite 0.2s;
}

@keyframes hvCoreFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

/* === 四节点 === */
.hv-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  z-index: 4;
  animation: hvNodeFloat 5s ease-in-out infinite;
}

.hv-n1 { top: 14%; left: 8%; animation-delay: 0s; }
.hv-n2 { top: 10%; right: 6%; animation-delay: 1.5s; }
.hv-n3 { bottom: 12%; right: 8%; animation-delay: 3s; }
.hv-n4 { bottom: 14%; left: 6%; animation-delay: 0.8s; }

@keyframes hvNodeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.hv-n-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  backdrop-filter: blur(8px);
  transition: transform 0.3s ease;
  position: relative;
}

.hv-n1 .hv-n-icon { background: rgba(37,99,235,0.12); border: 1.5px solid rgba(37,99,235,0.25); box-shadow: 0 0 18px rgba(37,99,235,0.1); }
.hv-n2 .hv-n-icon { background: rgba(6,182,212,0.1); border: 1.5px solid rgba(6,182,212,0.25); box-shadow: 0 0 18px rgba(6,182,212,0.1); }
.hv-n3 .hv-n-icon { background: rgba(245,158,11,0.1); border: 1.5px solid rgba(245,158,11,0.25); box-shadow: 0 0 18px rgba(245,158,11,0.1); }
.hv-n4 .hv-n-icon { background: rgba(37,99,235,0.08); border: 1.5px solid rgba(37,99,235,0.2); box-shadow: 0 0 18px rgba(37,99,235,0.08); }

.hv-n-label {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  padding: 3px 9px;
  background: rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 20px;
  backdrop-filter: blur(4px);
  letter-spacing: 0.3px;
}

.hv-n-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  animation: hvDot 2s ease-in-out infinite;
}

.hv-n1 .hv-n-dot { background: #93C5FD; }
.hv-n2 .hv-n-dot { background: #67E8F9; }
.hv-n3 .hv-n-dot { background: #FCD34D; }
.hv-n4 .hv-n-dot { background: #93C5FD; animation-delay: 0.8s; }

@keyframes hvDot {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(2); }
}

/* === SVG 连接线 === */
.hv-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.hv-line {
  animation: hvLineDash 2.5s linear infinite;
}

.l2 { animation-delay: 0.6s; }
.l3 { animation-delay: 1.2s; }
.l4 { animation-delay: 1.8s; }
.l5 { animation-delay: 2.4s; }

@keyframes hvLineDash {
  to { stroke-dashoffset: -22; }
}

/* === 装饰粒子 === */
.hv-dp {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  animation: hvDp 3s ease-in-out infinite;
  pointer-events: none;
}

.dp-1 { top: 25%; left: 28%; background: #93C5FD; animation-delay: 0s; }
.dp-2 { top: 22%; right: 32%; background: #67E8F9; animation-delay: 0.8s; }
.dp-3 { bottom: 30%; right: 28%; background: #FCD34D; animation-delay: 1.6s; }
.dp-4 { bottom: 32%; left: 25%; background: #93C5FD; animation-delay: 2.4s; }
.dp-5 { top: 48%; left: 48%; width: 4px; height: 4px; background: var(--primary); opacity: 0.2; animation-delay: 1s; }

@keyframes hvDp {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.9; transform: scale(2.5); }
}
}

.node-1 {
  top: 8%;
  left: 6%;
  animation-delay: 0s;
}

.node-2 {
  top: 5%;
  right: 2%;
  animation-delay: 1.5s;
}

.node-3 {
  bottom: 8%;
  right: 8%;
  animation-delay: 3s;
}

@keyframes nodeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.node-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  position: relative;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.node-1 .node-icon {
  background: rgba(37, 99, 235, 0.15);
  border: 1.5px solid rgba(37, 99, 235, 0.3);
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.15);
}

.node-2 .node-icon {
  background: rgba(6, 182, 212, 0.12);
  border: 1.5px solid rgba(6, 182, 212, 0.3);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.15);
}

.node-3 .node-icon {
  background: rgba(245, 158, 11, 0.12);
  border: 1.5px solid rgba(245, 158, 11, 0.3);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.15);
}

.node-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
  backdrop-filter: blur(4px);
}

.node-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.node-1 .node-dot { background: #93C5FD; }
.node-2 .node-dot { background: #67E8F9; }
.node-3 .node-dot { background: #FCD34D; }

/* === 流动箭头 SVG === */
.flow-arrows {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  pointer-events: none;
}

.flow-path {
  animation: flowDash 3s linear infinite;
}

@keyframes flowDash {
  to { stroke-dashoffset: -28; }
}

.flow-particle {
  animation: particleMove 4s ease-in-out infinite;
  filter: blur(1px);
}

.p1 { animation-delay: 0s; }
.p2 { animation-delay: 1.5s; }
.p3 { animation-delay: 3s; }

@keyframes particleMove {
  0%, 100% { opacity: 0.3; r: 2; }
  50% { opacity: 1; r: 4; }
}

/* === 装饰数据点 === */
.data-dot {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary-light);
  opacity: 0.3;
  animation: dataDotPulse 3s ease-in-out infinite;
}

.dd-1 { top: 30%; right: 18%; animation-delay: 0s; }
.dd-2 { top: 65%; left: 12%; animation-delay: 0.8s; }
.dd-3 { bottom: 25%; left: 35%; animation-delay: 1.6s; }
.dd-4 { top: 45%; right: 8%; animation-delay: 2.4s; background: var(--secondary); }
.dd-5 { bottom: 40%; right: 30%; animation-delay: 3.2s; background: var(--accent); }

@keyframes dataDotPulse {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(2); }
}

/* --- Scroll Indicator --- */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: fadeInUp 1s ease 0.8s both;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  50% { opacity: 0.5; transform: scaleY(0.5); transform-origin: top; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: top; }
}

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===== Value Proposition Section ===== */
.value-prop {
  background: linear-gradient(180deg, #0A0A1A 0%, #0F0A1E 100%);
  position: relative;
}

.value-prop::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.3), transparent);
}

.eco-flow {
  display: flex;
  gap: 28px;
  margin-top: 60px;
  position: relative;
  align-items: stretch;
}

.eco-step {
  flex: 1;
  min-width: 0;
  text-align: center;
  padding: 32px 18px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
}

/* 顶部渐变色条 */
.eco-step::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.eco-step:hover::before {
  transform: scaleX(1);
}

/* 箭头连接器 */
.eco-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--primary);
  font-weight: 300;
  z-index: 2;
  pointer-events: none;
  opacity: 0.5;
  transition: var(--transition);
}

.eco-step:hover:not(:last-child)::after {
  opacity: 1;
  transform: translateY(-50%) translateX(3px);
}

.eco-step:hover {
  background: var(--bg-card-hover);
  border-color: rgba(37, 99, 235, 0.3);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

/* 步骤编号 */
.eco-step .step-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 14px;
  padding: 3px 14px;
  border: 1px solid rgba(37,99,235,0.12);
  border-radius: 20px;
  background: rgba(37,99,235,0.04);
  transition: var(--transition);
}

.eco-step:hover .step-num {
  background: rgba(37,99,235,0.1);
  border-color: rgba(37,99,235,0.25);
  color: var(--primary-light);
}

/* 图标容器 */
.step-icon-wrap {
  position: relative;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-icon-bg {
  position: absolute;
  inset: 0;
  border-radius: 18px;
  background: rgba(37,99,235,0.06);
  border: 1px solid rgba(37,99,235,0.1);
  transition: var(--transition);
}

.eco-step:hover .step-icon-bg {
  background: rgba(37,99,235,0.12);
  border-color: rgba(37,99,235,0.25);
  transform: scale(1.08);
  box-shadow: 0 0 24px rgba(37,99,235,0.1);
}

.step-icon {
  position: relative;
  z-index: 1;
  font-size: 1.6rem;
  transition: var(--transition);
}

.eco-step:hover .step-icon {
  transform: scale(1.1);
}

/* 标题 */
.eco-step h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  transition: var(--transition);
}

.eco-step:hover h4 {
  background: linear-gradient(135deg, #F8FAFC 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.eco-step p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  max-width: 220px;
}

/* 底部指标区 */
.step-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding: 10px 14px;
  background: rgba(0,0,0,0.15);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 10px;
  width: 100%;
  max-width: 200px;
  transition: var(--transition);
}

.eco-step:hover .step-meta {
  background: rgba(37,99,235,0.05);
  border-color: rgba(37,99,235,0.1);
}

.step-meta-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.step-meta-num {
  font-size: 1rem;
  font-weight: 800;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.step-meta-label {
  font-size: 0.6rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.step-meta-divider {
  width: 1px;
  height: 24px;
  background: rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.eco-arrow {
  display: none;
}

/* ===== Solutions Tabs ===== */
.solutions {
  background: linear-gradient(180deg, #0F0A1E 0%, #0A0A1A 100%);
}

.solution-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 48px 0 40px;
  flex-wrap: wrap;
}

.solution-tab {
  padding: 14px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.solution-tab:hover {
  border-color: rgba(37, 99, 235, 0.3);
  color: var(--text-primary);
}

.solution-tab.active {
  background: var(--gradient-1);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.solution-panel {
  display: none;
  animation: fadeInUp 0.5s ease;
}

.solution-panel.active {
  display: block;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.solution-card {
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* 顶部 hover 条 */
.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
  z-index: 1;
}

.solution-card:hover::before {
  transform: scaleX(1);
}

/* 背景装饰光晕 */
.solution-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(37,99,235,0.03) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  transition: var(--transition);
}

.solution-card:hover::after {
  opacity: 0;
}

.solution-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(37, 99, 235, 0.25);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25), 0 0 30px rgba(37, 99, 235, 0.05);
}

/* 图标容器 */
.sc-icon-wrap {
  position: relative;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 28px 0 0 28px;
}

.sc-icon-bg {
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background: rgba(37,99,235,0.06);
  border: 1px solid rgba(37,99,235,0.1);
  transition: var(--transition);
}

.solution-card:hover .sc-icon-bg {
  background: rgba(37,99,235,0.12);
  border-color: rgba(37,99,235,0.25);
  transform: scale(1.08);
  box-shadow: 0 0 24px rgba(37,99,235,0.1);
}

.sc-icon {
  position: relative;
  z-index: 1;
  font-size: 1.5rem;
  transition: var(--transition);
}

.solution-card:hover .sc-icon {
  transform: scale(1.1);
}

/* 标题 */
.solution-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 18px 28px 0;
  transition: var(--transition);
}

.solution-card:hover h4 {
  background: linear-gradient(135deg, #F8FAFC 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 描述 */
.solution-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 10px 28px 0;
  flex: 1;
}

/* 标签区 */
.sc-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 28px 24px;
}

.sc-tag {
  padding: 4px 14px;
  background: rgba(6, 182, 212, 0.06);
  border: 1px solid rgba(6, 182, 212, 0.12);
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--secondary-light);
  transition: var(--transition);
}

.solution-card:hover .sc-tag {
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.2);
}

/* ===== Features Section ===== */
.features {
  background: linear-gradient(180deg, #0A0A1A 0%, #0F0A1E 100%);
  position: relative;
  overflow: hidden;
}

.features::before {
  content: '';
  position: absolute;
  top: 20%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.feature-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 60px;
}

.feature-showcase.reverse {
  direction: rtl;
}

.feature-showcase.reverse > * {
  direction: ltr;
}

.feature-content h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #F8FAFC 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.feature-list li .check {
  width: 22px;
  height: 22px;
  min-width: 22px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-size: 0.7rem;
  margin-top: 2px;
}

.feature-visual {
  position: relative;
}

.feature-mockup {
  width: 100%;
  aspect-ratio: 4/3;
  background: radial-gradient(ellipse at 30% 40%, rgba(37,99,235,0.06) 0%, transparent 60%),
              var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: border-color 0.5s ease, box-shadow 0.5s ease;
}

.feature-showcase:hover .feature-mockup {
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 0 40px rgba(37, 99, 235, 0.08);
}

.feature-mockup::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(37, 99, 235, 0.08) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.feature-mockup .mockup-label {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-mockup .mockup-label span {
  color: var(--primary-light);
  font-weight: 600;
}

/* ============================================
   ===== Feature Visuals - 数据可视化组件 =====
   ============================================ */

/* --- 通用: visual 容器占满 mockup --- */
.viz-data-engine,
.viz-ai-create,
.viz-risk,
.viz-eco {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
/* ===== 1. 多源数据引擎可视化（精准布局重建） ===== */
.viz-data-engine {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

/* 背景网格 */
.de-bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 18px 18px;
}

/* ===== 三栏布局 ===== */
.de-layout {
  position: absolute;
  inset: 8% 5% 12% 5%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 8px;
  z-index: 2;
}

.de-col {
  display: flex;
  flex-direction: column;
}

.de-col-header {
  font-size: 0.48rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

/* ===== 左栏：数据源 ===== */
.de-col-left {
  gap: 6px;
  justify-content: center;
}

.de-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  background: rgba(0,0,0,0.12);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 6px;
  animation: deRowIn 0.5s ease both;
}

.de-r1 { animation-delay: 0s; }
.de-r2 { animation-delay: 0.1s; }
.de-r3 { animation-delay: 0.2s; }
.de-r4 { animation-delay: 0.3s; }

@keyframes deRowIn {
  from { opacity: 0; transform: translateX(-6px); }
  to { opacity: 1; transform: translateX(0); }
}

.de-badge {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.de-bd-1 { background: rgba(37,99,235,0.15); color: #93C5FD; border: 1px solid rgba(37,99,235,0.2); }
.de-bd-2 { background: rgba(6,182,212,0.12); color: #67E8F9; border: 1px solid rgba(6,182,212,0.18); }
.de-bd-3 { background: rgba(245,158,11,0.12); color: #FCD34D; border: 1px solid rgba(245,158,11,0.18); }
.de-bd-4 { background: rgba(37,99,235,0.12); color: #93C5FD; border: 1px solid rgba(37,99,235,0.18); }

.de-info {
  flex: 1;
  min-width: 0;
}

.de-name {
  font-size: 0.55rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.de-bar {
  height: 3px;
  background: rgba(255,255,255,0.04);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 2px;
}

.de-bar-fill {
  height: 100%;
  border-radius: 2px;
  animation: deBarGrow 1.2s ease 0.4s both;
}

.de-bf-1 { width: 100%; background: linear-gradient(90deg, #2563EB, #93C5FD); }
.de-bf-2 { width: 78%; background: linear-gradient(90deg, #06B6D4, #67E8F9); }
.de-bf-3 { width: 62%; background: linear-gradient(90deg, #F59E0B, #FCD34D); }
.de-bf-4 { width: 70%; background: linear-gradient(90deg, #2563EB, #93C5FD); }

@keyframes deBarGrow {
  from { width: 0; }
}

.de-stat {
  font-size: 0.42rem;
  color: var(--text-muted);
}

/* ===== 中栏：AI 处理核心 ===== */
.de-col-center {
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 12px;
}

.de-cpu {
  position: relative;
  width: 60px;
  height: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  animation: deCpuIn 0.6s ease 0.3s both;
}

@keyframes deCpuIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

.de-cpu-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  border: 1.5px solid;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.de-cr-1 { width: 100%; height: 100%; border-color: rgba(37,99,235,0.15); animation: deSpin 10s linear infinite; }
.de-cr-2 { width: 78%; height: 78%; border-color: rgba(6,182,212,0.1); border-style: dashed; animation: deSpin 7s linear infinite reverse; }
.de-cr-3 { width: 55%; height: 55%; border-color: rgba(245,158,11,0.06); animation: deSpin 5s linear infinite; }

@keyframes deSpin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.de-cpu-core {
  position: relative;
  z-index: 2;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(37,99,235,0.1);
  border: 1.5px solid rgba(37,99,235,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  animation: deCpuFloat 4s ease-in-out infinite;
}

@keyframes deCpuFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.de-cpu-label {
  position: relative;
  z-index: 2;
  font-size: 0.48rem;
  font-weight: 700;
  color: var(--primary-light);
  letter-spacing: 1px;
  margin-top: 2px;
  animation: deCpuFloat 4s ease-in-out infinite 0.15s;
}

.de-status {
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: deCpuIn 0.6s ease 0.5s both;
}

.de-st-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.de-st-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  animation: deStDot 2s ease-in-out infinite;
}

.st-dot-1 { background: #93C5FD; animation-delay: 0s; }
.st-dot-2 { background: #67E8F9; animation-delay: 0.5s; }
.st-dot-3 { background: #FCD34D; animation-delay: 1s; }

@keyframes deStDot {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.8); }
}

.de-st-text {
  font-size: 0.45rem;
  color: var(--text-muted);
}

/* ===== 右栏：输出仪表板 ===== */
.de-col-right {
  gap: 6px;
  justify-content: center;
}

.de-metric {
  padding: 5px 8px;
  background: rgba(0,0,0,0.12);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: 6px;
  animation: deRowIn 0.5s ease both;
}

.de-metric:nth-child(2) { animation-delay: 0.1s; }
.de-metric:nth-child(3) { animation-delay: 0.2s; }
.de-metric:nth-child(4) { animation-delay: 0.3s; }
.de-metric:nth-child(5) { animation-delay: 0.4s; }

.de-mh {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3px;
}

.de-ml {
  font-size: 0.48rem;
  color: var(--text-muted);
}

.de-mv {
  font-size: 0.58rem;
  font-weight: 700;
  color: var(--text-primary);
}

.de-mt {
  height: 3px;
  background: rgba(255,255,255,0.04);
  border-radius: 2px;
  overflow: hidden;
}

.de-mf {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, #2563EB, #93C5FD);
  animation: deBarGrow 1.2s ease 0.6s both;
}

/* ===== SVG 连接线 ===== */
.de-connector {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.de-cl {
  animation: deCLDash 2.5s linear infinite;
}

.dc-l2 { animation-delay: 0.4s; }
.dc-l3 { animation-delay: 0.8s; }
.dc-l4 { animation-delay: 1.2s; }
.dc-r1 { animation-delay: 0.3s; }
.dc-r2 { animation-delay: 0.6s; }
.dc-r3 { animation-delay: 0.9s; }

@keyframes deCLDash {
  to { stroke-dashoffset: -18; }
}

.de-cp {
  filter: drop-shadow(0 0 3px currentColor);
  opacity: 0.8;
}

REPLACEMENT_MARKER_END

/* ===== 2. AI 智能创作可视化 ===== */
.viz-ai-create {
  padding: 10%;
}

/* 神经网络背景 */
.ac-network {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* AI大脑核心 */
.ac-brain {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 4;
}

.ac-brain-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60px;
  height: 60px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, transparent 70%);
  animation: acBrainPulse 3s ease-in-out infinite;
}

@keyframes acBrainPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.6; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

.ac-brain-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(37,99,235,0.12);
  border: 1.5px solid rgba(37,99,235,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  position: relative;
  z-index: 2;
  animation: acBrainFloat 4s ease-in-out infinite;
}

@keyframes acBrainFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.ac-brain-label {
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--primary-light);
  letter-spacing: 1px;
  position: relative;
  z-index: 2;
}

/* 输出内容卡片 */
.ac-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  z-index: 3;
  backdrop-filter: blur(4px);
}

.ac-card-1 { top: 8%; left: 8%; animation: acCardFloat1 5s ease-in-out infinite; }
.ac-card-2 { top: 8%; right: 8%; animation: acCardFloat2 5s ease-in-out infinite 1.5s; }
.ac-card-3 { bottom: 15%; left: 50%; transform: translateX(-50%); animation: acCardFloat3 5s ease-in-out infinite 3s; }

.ac-card-icon {
  font-size: 0.8rem;
}

.ac-card-text {
  font-size: 0.55rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

@keyframes acCardFloat1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes acCardFloat2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes acCardFloat3 {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-6px); }
}

/* 平台标签 */
.ac-platform {
  position: absolute;
  font-size: 0.45rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  z-index: 2;
  opacity: 0.5;
  animation: acPlatPulse 4s ease-in-out infinite;
}

.ac-plat-1 { bottom: 8%; left: 12%; background: rgba(6,182,212,0.1); color: #67E8F9; border: 1px solid rgba(6,182,212,0.2); animation-delay: 0s; }
.ac-plat-2 { bottom: 8%; left: 42%; background: rgba(245,158,11,0.1); color: #FCD34D; border: 1px solid rgba(245,158,11,0.2); animation-delay: 0.8s; }
.ac-plat-3 { bottom: 8%; right: 12%; background: rgba(37,99,235,0.1); color: #93C5FD; border: 1px solid rgba(37,99,235,0.2); animation-delay: 1.6s; }

@keyframes acPlatPulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

/* ===== 3. AI 商标风控可视化（完全重建） ===== */
.viz-risk {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

/* 背景 */
.rk-bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(37,99,235,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.03) 1px, transparent 1px);
  background-size: 16px 16px;
}

.rk-bg-glow {
  position: absolute;
  top: 30%;
  right: 20%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(37,99,235,0.05) 0%, transparent 60%);
  border-radius: 50%;
  animation: rkGlow 5s ease-in-out infinite;
}

@keyframes rkGlow {
  0%, 100% { transform: scale(0.8); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 1; }
}

/* ===== 顶部：AI 扫描分析栏 ===== */
.rk-scanner {
  position: absolute;
  top: 3%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  width: 80%;
  animation: rkScanFade 0.8s ease 0.2s both;
}

@keyframes rkScanFade {
  from { opacity: 0; transform: translateX(-50%) translateY(-8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.rk-scanner-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.15);
  border-radius: 20px;
  backdrop-filter: blur(4px);
}

.rk-scanner-icon {
  font-size: 0.7rem;
  animation: rkScanPulse 2s ease-in-out infinite;
}

@keyframes rkScanPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.rk-scanner-text {
  font-size: 0.5rem;
  color: var(--primary-light);
  font-weight: 500;
  white-space: nowrap;
}

.rk-scanner-progress {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  overflow: hidden;
}

.rk-scanner-fill {
  height: 100%;
  width: 70%;
  background: linear-gradient(90deg, #2563EB, #06B6D4);
  border-radius: 2px;
  animation: rkScanFill 3s ease-in-out infinite;
}

@keyframes rkScanFill {
  0% { width: 10%; }
  50% { width: 85%; }
  100% { width: 10%; }
}

/* ===== 左区：商标比对视图 ===== */
.rk-compare {
  position: absolute;
  left: 5%;
  top: 40%;
  transform: translateY(-50%);
  z-index: 3;
  width: 44%;
  animation: rkCompFade 0.8s ease 0.4s both;
}

@keyframes rkCompFade {
  from { opacity: 0; transform: translateY(-50%) translateX(-8px); }
  to { opacity: 1; transform: translateY(-50%) translateX(0); }
}

.rk-compare-header {
  font-size: 0.5rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.rk-compare-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.rk-tm {
  flex: 1;
  padding: 8px 10px;
  border-radius: 8px;
  position: relative;
}

.rk-tm-app {
  background: rgba(37,99,235,0.06);
  border: 1px solid rgba(37,99,235,0.15);
}

.rk-tm-existing {
  background: rgba(6,182,212,0.06);
  border: 1px solid rgba(6,182,212,0.15);
}

.rk-tm-badge {
  display: inline-block;
  font-size: 0.4rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(37,99,235,0.15);
  color: #93C5FD;
  margin-bottom: 4px;
}

.rk-tm-badge-ex {
  background: rgba(6,182,212,0.15);
  color: #67E8F9;
}

.rk-tm-name {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.rk-tm-class {
  font-size: 0.42rem;
  color: var(--text-muted);
}

.rk-vs {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 0 4px;
  flex-shrink: 0;
}

.rk-vs-icon {
  font-size: 0.7rem;
  animation: rkVSPulse 2s ease-in-out infinite;
}

@keyframes rkVSPulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
}

.rk-vs-text {
  font-size: 0.45rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* 相似度指示器 */
.rk-similarity {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 6px 10px;
  background: rgba(0,0,0,0.15);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.04);
}

.rk-sim-header {
  font-size: 0.45rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.rk-sim-track {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,0.05);
  border-radius: 2px;
  overflow: hidden;
}

.rk-sim-fill {
  height: 100%;
  width: 72%;
  background: linear-gradient(90deg, #F59E0B, #FCD34D);
  border-radius: 2px;
  animation: rkSimGrow 1.5s ease 1s both;
}

@keyframes rkSimGrow {
  from { width: 0; }
}

.rk-sim-value {
  display: flex;
  align-items: baseline;
  gap: 1px;
}

.rk-sim-num {
  font-size: 0.85rem;
  font-weight: 800;
  color: #FCD34D;
}

.rk-sim-unit {
  font-size: 0.45rem;
  color: var(--text-muted);
}

/* 风险标签 */
.rk-tags {
  display: flex;
  gap: 4px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.rk-tag {
  font-size: 0.42rem;
  padding: 2px 8px;
  border-radius: 10px;
  background: rgba(245,158,11,0.1);
  color: #FCD34D;
  border: 1px solid rgba(245,158,11,0.15);
  animation: rkTagPop 0.4s ease both;
}

.rk-tag:nth-child(2) { animation-delay: 0.15s; }
.rk-tag:nth-child(3) { animation-delay: 0.3s; }

.rk-tag-warn {
  background: rgba(239,68,68,0.1);
  color: #FCA5A5;
  border-color: rgba(239,68,68,0.15);
}

@keyframes rkTagPop {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

/* ===== 右区：风险评估面板 ===== */
.rk-assessment {
  position: absolute;
  right: 5%;
  top: 40%;
  transform: translateY(-50%);
  z-index: 3;
  width: 38%;
  animation: rkAssessFade 0.8s ease 0.6s both;
}

@keyframes rkAssessFade {
  from { opacity: 0; transform: translateY(-50%) translateX(8px); }
  to { opacity: 1; transform: translateY(-50%) translateX(0); }
}

.rk-assess-header {
  font-size: 0.5rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 8px;
  text-align: center;
  letter-spacing: 0.5px;
}

/* 通过率环形仪表 */
.rk-gauge {
  display: flex;
  justify-content: center;
  margin-bottom: 10px;
}

.rk-gauge-svg {
  width: 72px;
  height: 72px;
}

.rk-gauge-arc {
  animation: rkGaugeDraw 2s ease 0.5s both;
}

@keyframes rkGaugeDraw {
  from { stroke-dashoffset: 226; }
}

/* 风险维度 */
.rk-dims {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rk-dim {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  background: rgba(0,0,0,0.12);
  border-radius: 4px;
  animation: rkDimFade 0.5s ease both;
}

.rk-dim:nth-child(1) { animation-delay: 0.7s; }
.rk-dim:nth-child(2) { animation-delay: 0.85s; }
.rk-dim:nth-child(3) { animation-delay: 1s; }
.rk-dim:nth-child(4) { animation-delay: 1.15s; }

@keyframes rkDimFade {
  from { opacity: 0; transform: translateX(6px); }
  to { opacity: 1; transform: translateX(0); }
}

.rk-dim-label {
  font-size: 0.42rem;
  color: var(--text-muted);
  min-width: 44px;
}

.rk-dim-track {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,0.04);
  border-radius: 2px;
  overflow: hidden;
}

.rk-dim-fill {
  height: 100%;
  border-radius: 2px;
  animation: rkDimGrow 1s ease 1s both;
}

.rk-df-1 { width: 78%; background: linear-gradient(90deg, #EF4444, #FCA5A5); }
.rk-df-2 { width: 45%; background: linear-gradient(90deg, #F59E0B, #FCD34D); }
.rk-df-3 { width: 82%; background: linear-gradient(90deg, #EF4444, #FCA5A5); }
.rk-df-4 { width: 35%; background: linear-gradient(90deg, #06B6D4, #67E8F9); }

@keyframes rkDimGrow {
  from { width: 0; }
}

.rk-dim-val {
  font-size: 0.42rem;
  font-weight: 600;
  min-width: 22px;
  text-align: right;
}

.rk-dim:nth-child(1) .rk-dim-val,
.rk-dim:nth-child(3) .rk-dim-val { color: #FCA5A5; }
.rk-dim:nth-child(2) .rk-dim-val { color: #FCD34D; }
.rk-dim:nth-child(4) .rk-dim-val { color: #67E8F9; }

/* ===== 底部：结论 ===== */
.rk-conclusion {
  position: absolute;
  bottom: 3%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  width: 88%;
  padding: 7px 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(245,158,11,0.1);
  border-radius: 8px;
  backdrop-filter: blur(4px);
  animation: rkConFade 0.8s ease 1.2s both;
}

@keyframes rkConFade {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.rk-con-icon {
  font-size: 0.8rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.rk-con-text {
  font-size: 0.5rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.rk-con-bold {
  color: #FCD34D;
  font-weight: 600;
}

/* ===== 装饰浮动点 ===== */
.rk-float-dot {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  animation: rkFloatDot 3s ease-in-out infinite;
}

.rk-fd-1 { top: 22%; left: 8%; background: #93C5FD; animation-delay: 0s; }
.rk-fd-2 { top: 65%; right: 42%; background: #67E8F9; animation-delay: 1s; }
.rk-fd-3 { bottom: 30%; left: 45%; background: #FCD34D; animation-delay: 2s; }

@keyframes rkFloatDot {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(2.5); }
}

/* ===== 4. 私域生态闭环可视化 ===== */
.viz-eco {
  padding: 12%;
}

/* 轨道 */
.eco-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid;
  pointer-events: none;
}

.eco-ring-outer {
  width: 82%;
  height: 82%;
  border-color: rgba(37,99,235,0.1);
  animation: ecoSpin 20s linear infinite;
}

.eco-ring-mid {
  width: 65%;
  height: 65%;
  border-color: rgba(6,182,212,0.08);
  border-style: dashed;
  animation: ecoSpin 15s linear infinite reverse;
}

@keyframes ecoSpin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 中心节点 */
.eco-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 4;
}

.eco-center-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 56px;
  height: 56px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.1) 0%, transparent 70%);
  animation: ecoGlow 3s ease-in-out infinite;
}

@keyframes ecoGlow {
  0%, 100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

.eco-center-icon {
  font-size: 1.4rem;
  position: relative;
  z-index: 2;
  animation: ecoCenterFloat 4s ease-in-out infinite;
}

@keyframes ecoCenterFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.eco-center-label {
  font-size: 0.55rem;
  font-weight: 700;
  color: var(--primary-light);
  letter-spacing: 1px;
  position: relative;
  z-index: 2;
}

/* 环绕服务节点 */
.eco-snode {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 3;
  animation: snFloat 5s ease-in-out infinite;
}

.eco-sn-1 { top: 5%; left: 50%; transform: translateX(-50%); animation: snFloat1 5s ease-in-out infinite; }
.eco-sn-2 { right: 8%; top: 38%; animation: snFloat2 5s ease-in-out infinite 1s; }
.eco-sn-3 { left: 8%; top: 38%; animation: snFloat3 5s ease-in-out infinite 2s; }
.eco-sn-4 { bottom: 5%; left: 50%; transform: translateX(-50%); animation: snFloat4 5s ease-in-out infinite 3s; }

@keyframes snFloat1 {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-6px); }
}
@keyframes snFloat2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes snFloat3 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes snFloat4 {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-6px); }
}

.sn-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  backdrop-filter: blur(4px);
}

.eco-sn-1 .sn-icon { background: rgba(37,99,235,0.12); border: 1px solid rgba(37,99,235,0.2); }
.eco-sn-2 .sn-icon { background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.2); }
.eco-sn-3 .sn-icon { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.2); }
.eco-sn-4 .sn-icon { background: rgba(37,99,235,0.1); border: 1px solid rgba(37,99,235,0.2); }

.sn-label {
  font-size: 0.5rem;
  color: var(--text-muted);
  white-space: nowrap;
  padding: 2px 6px;
  background: rgba(0,0,0,0.3);
  border-radius: 8px;
}

/* 连接线 */
.eco-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* ===== Feature Visuals - 响应式适配 ===== */
@media (max-width: 992px) {
  .de-layout { inset: 5% 3% 10% 3%; gap: 6px; }
  .de-row { padding: 4px 6px; gap: 6px; }
  .de-badge { width: 16px; height: 16px; font-size: 0.42rem; }
  .de-name { font-size: 0.48rem; }
  .de-bar { height: 2px; }
  .de-stat { font-size: 0.36rem; }
  .de-cpu { width: 48px; height: 48px; }
  .de-cpu-core { width: 22px; height: 22px; }
  .de-cpu-label { font-size: 0.4rem; }
  .de-cr-1 { border-width: 1px; }
  .de-cr-2 { border-width: 1px; }
  .de-cr-3 { border-width: 1px; }
  .de-status { gap: 3px; }
  .de-st-text { font-size: 0.38rem; }
  .de-st-dot { width: 3px; height: 3px; }
  .de-metric { padding: 4px 6px; }
  .de-ml { font-size: 0.4rem; }
  .de-mv { font-size: 0.5rem; }
  .de-mt { height: 2px; }
  
  .ac-brain-icon { width: 32px; height: 32px; }
  .ac-brain-icon svg { width: 24px; height: 24px; }
  .ac-brain-label { font-size: 0.5rem; }
  .ac-brain-pulse { width: 48px; height: 48px; }
  .ac-card { padding: 4px 8px; }
  .ac-card-icon { font-size: 0.65rem; }
  .ac-card-text { font-size: 0.48rem; }
  .ac-platform { font-size: 0.4rem; padding: 1px 6px; }
  
  .rk-compare { left: 3%; width: 46%; }
  .rk-tm { padding: 5px 7px; }
  .rk-tm-name { font-size: 0.58rem; }
  .rk-tm-class { font-size: 0.36rem; }
  .rk-vs-icon { font-size: 0.55rem; }
  .rk-sim-num { font-size: 0.7rem; }
  .rk-sim-header { font-size: 0.38rem; }
  .rk-tag { font-size: 0.36rem; padding: 1px 6px; }
  .rk-assessment { right: 3%; width: 40%; }
  .rk-gauge-svg { width: 56px; height: 56px; }
  .rk-dim-label { font-size: 0.36rem; min-width: 34px; }
  .rk-dim-val { font-size: 0.36rem; }
  .rk-conclusion { padding: 5px 10px; }
  .rk-con-text { font-size: 0.42rem; }
  .rk-scanner-text { font-size: 0.42rem; }
  .rk-scanner { width: 84%; }
  
  .sn-icon { width: 26px; height: 26px; font-size: 0.7rem; }
  .sn-label { font-size: 0.42rem; }
  .eco-center-icon { font-size: 1.1rem; }
  .eco-center-label { font-size: 0.48rem; }
  .eco-center-glow { width: 44px; height: 44px; }
}

/* ===== 生态矩阵卡片（完全重建） ===== */
.eco-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.eco-card {
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.eco-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.eco-card:hover::before {
  transform: scaleX(1);
}

.eco-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.3), transparent);
}

.eco-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(37, 99, 235, 0.3);
}

.eco-card-inner {
  padding: 32px 24px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.eco-card .eco-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  position: relative;
  transition: var(--transition);
}

.eco-card:hover .eco-icon {
  transform: scale(1.08);
}

.eco-icon-symbol {
  position: relative;
  z-index: 1;
  font-weight: 700;
}

.eco-icon-purple { background: rgba(37, 99, 235, 0.1); color: #93C5FD; box-shadow: 0 0 20px rgba(37, 99, 235, 0.1); }
.eco-icon-cyan { background: rgba(6, 182, 212, 0.1); color: #67E8F9; box-shadow: 0 0 20px rgba(6, 182, 212, 0.1); }
.eco-icon-gold { background: rgba(245, 158, 11, 0.1); color: #FCD34D; box-shadow: 0 0 20px rgba(245, 158, 11, 0.1); }
.eco-icon-rose { background: rgba(244, 114, 182, 0.1); color: #F9A8D4; box-shadow: 0 0 20px rgba(244, 114, 182, 0.1); }

.eco-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #F8FAFC 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.eco-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.eco-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 12px;
  width: 100%;
  margin-bottom: 18px;
}

.eco-feat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  padding: 3px 0;
  transition: var(--transition);
}

.eco-card:hover .eco-feat {
  color: var(--text-primary);
}

.eco-feat-dot {
  width: 5px;
  height: 5px;
  min-width: 5px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.4;
  transition: var(--transition);
}

.eco-card:hover .eco-feat-dot {
  opacity: 1;
  box-shadow: 0 0 6px var(--primary);
}

.eco-stat {
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding: 6px 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 20px;
  transition: var(--transition);
}

.eco-card:hover .eco-stat {
  background: rgba(37,99,235,0.06);
  border-color: rgba(37,99,235,0.12);
}

.eco-stat-num {
  font-size: 1rem;
  font-weight: 800;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.eco-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(180deg, #0A0A1A 0%, #0F0A1E 100%);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(37, 99, 235, 0.06) 0%, transparent 60%);
}

.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 80px 60px;
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

.cta-box h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #F8FAFC 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-box p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
  background: #080818;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  line-height: 1.7;
  max-width: 320px;
}

.footer h5 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer a {
  display: block;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
  transition: var(--transition);
}

.footer a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== Scroll Animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   ===== 多设备屏幕响应式适配 (增强版) =====
   ============================================ */

/* --- 超大桌面端 1440px+ --- */
@media (min-width: 1440px) {
  .container {
    max-width: 1320px;
    padding: 0 40px;
  }
  
  .hero .container {
    gap: 80px;
  }
  
  .hero-visual-inner {
    max-width: 560px;
  }
  
  .hero h1 {
    font-size: clamp(2.4rem, 3.6vw, 3.6rem);
  }
  
  .section {
    padding: 120px 0;
  }
  
  .eco-flow {
    gap: 28px;
  }
  
  .eco-cards {
    gap: 32px;
  }
  
  .solution-grid {
    gap: 28px;
  }
}

/* --- 4K 超大屏 --- */
@media (min-width: 1800px) {
  .container {
    max-width: 1500px;
  }
  
  html {
    font-size: 18px;
  }
  
  .hero-visual-inner {
    max-width: 640px;
  }
  
  .section {
    padding: 140px 0;
  }
}

/* --- 笔记本 / 小桌面 1025px ~ 1439px --- */
@media (min-width: 1025px) and (max-width: 1439px) {
  .container {
    padding: 0 32px;
  }
  
  .hero .container {
    gap: 40px;
  }
  
  .hero-visual-inner {
    max-width: 440px;
  }
  
  .hero h1 {
    font-size: clamp(1.75rem, 3.2vw, 2.55rem);
  }
  
  .eco-flow {
    gap: 16px;
  }
  
  .eco-step {
    padding: 26px 14px 20px;
  }
  
  .step-icon-wrap {
    width: 52px;
    height: 52px;
    margin-bottom: 12px;
  }
  
  .step-icon {
    font-size: 1.3rem;
  }
  
  .step-meta {
    padding: 8px 10px;
    max-width: 170px;
  }
  
  .step-meta-num {
    font-size: 0.85rem;
  }
  
  .solution-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
}

/* --- 平板横屏 / 小笔记本 993px ~ 1024px --- */
@media (min-width: 993px) and (max-width: 1024px) {
  .container {
    padding: 0 28px;
  }
  
  .hero .container {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  
  .hero h1 {
    font-size: clamp(1.6rem, 2.8vw, 2.25rem);
  }
  
  .hero-desc {
    font-size: 0.82rem;
  }
  
  .hero-visual-inner {
    max-width: 380px;
  }
  
  .core-node {
    width: 64px;
    height: 64px;
  }
  
  .core-glow {
    width: 110px;
    height: 110px;
  }
  
  .core-icon svg {
    width: 30px;
    height: 30px;
  }
  
  .node-icon {
    width: 42px;
    height: 42px;
    font-size: 1.1rem;
  }
  
  .node-label {
    font-size: 0.65rem;
    padding: 2px 8px;
  }
  
  .eco-flow {
    gap: 12px;
  }
  
  .eco-step {
    padding: 22px 12px 18px;
  }
  
  .step-icon-wrap {
    width: 48px;
    height: 48px;
    margin-bottom: 10px;
  }
  
  .step-icon {
    font-size: 1.2rem;
  }
  
  .eco-step h4 {
    font-size: 0.9rem;
  }
  
  .eco-step p {
    font-size: 0.75rem;
    margin-bottom: 14px;
  }
  
  .step-meta {
    padding: 6px 8px;
    max-width: 150px;
    gap: 8px;
  }
  
  .step-meta-num {
    font-size: 0.75rem;
  }
  
  .step-meta-label {
    font-size: 0.5rem;
  }
  
  .step-meta-divider {
    height: 18px;
  }
  
  .eco-step p {
    font-size: 0.8rem;
  }
  
  .eco-step:not(:last-child)::after {
    right: -10px;
    font-size: 1.1rem;
  }
  
  .eco-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  
  .eco-card-inner {
    padding: 24px 18px 20px;
  }
  
  .eco-features {
    gap: 4px 8px;
  }
  
  .eco-feat {
    font-size: 0.7rem;
  }
  
  .feature-showcase {
    gap: 40px;
  }
  
  .feature-content h3 {
    font-size: 1.5rem;
  }
  
  .sc-icon-wrap {
    width: 48px;
    height: 48px;
    margin: 22px 0 0 22px;
  }
  
  .sc-icon {
    font-size: 1.2rem;
  }
  
  .solution-card h4 {
    margin: 14px 22px 0;
    font-size: 1rem;
  }
  
  .solution-card p {
    margin: 8px 22px 0;
    font-size: 0.8rem;
  }
  
  .sc-tags {
    margin: 12px 22px 18px;
  }
  
  .sc-tag {
    font-size: 0.68rem;
    padding: 3px 10px;
  }
  
  .solution-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .cta-box {
    padding: 60px 40px;
  }
}

/* --- 平板竖屏 769px ~ 992px --- */
@media (min-width: 769px) and (max-width: 992px) {
  html {
    font-size: 15px;
  }
  
  .container {
    padding: 0 28px;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  
  .hero-desc {
    margin: 0 auto 32px;
    font-size: 0.82rem;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-visual-inner {
    margin: 0 auto;
    max-width: 360px;
  }
  
  .hero-visual {
    order: -1;
    margin-bottom: 10px;
  }
  
  .node-icon {
    width: 44px;
    height: 44px;
    font-size: 1.15rem;
  }
  
  .node-label {
    font-size: 0.65rem;
  }
  
  .section {
    padding: 72px 0;
  }
  
  .section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  }
  
  .eco-flow {
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 48px;
  }
  
  .eco-step {
    flex: 1 1 calc(50% - 16px);
    min-width: 200px;
    padding: 24px 16px 20px;
  }
  
  .eco-step:not(:last-child)::after {
    display: none;
  }
  
  .step-icon-wrap {
    width: 54px;
    height: 54px;
    margin-bottom: 12px;
  }
  
  .step-icon {
    font-size: 1.3rem;
  }
  
  .step-meta {
    max-width: 180px;
  }
  
  .feature-showcase {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-top: 48px;
  }
  
  .feature-showcase.reverse {
    direction: ltr;
  }
  
  .feature-content h3 {
    font-size: 1.6rem;
  }
  
  .feature-mockup {
    aspect-ratio: 16/9;
    font-size: 3rem;
  }
  
  .eco-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-top: 48px;
  }
  
  .eco-card-inner {
    padding: 24px 18px 20px;
  }
  
  .solution-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  
  .solution-tabs {
    gap: 10px;
  }
  
  .solution-tab {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
  
  .cta-box {
    padding: 56px 40px;
  }
  
  .cta-section {
    padding: 80px 0;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .navbar .logo {
    font-size: 1.3rem;
  }
  
  .nav-links {
    gap: 24px;
  }
  
  .nav-links a {
    font-size: 0.88rem;
  }
  
  .nav-btn {
    padding: 8px 20px;
    font-size: 0.85rem;
  }
}

/* --- 大屏手机 / 小平板 577px ~ 768px --- */
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  .container {
    padding: 0 20px;
  }
  
  /* Navbar */
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 36px;
    z-index: 999;
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .nav-links a {
    font-size: 1.3rem;
    color: #1F2A44;
  }
  
  .nav-links .nav-ico {
    width: 21px;
    height: 21px;
  }
  
  .nav-links .nav-btn {
    font-size: 1.1rem;
    padding: 14px 40px;
  }
  
  .mobile-toggle {
    display: flex;
    z-index: 1001;
    position: relative;
  }
  
  .mobile-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-toggle.open span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .navbar .logo {
    font-size: 1.3rem;
  }
  
  .navbar .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }
  
  .navbar {
    padding: 12px 0;
  }
  
  .navbar.scrolled {
    padding: 8px 0;
  }
  
  /* Hero */
  .hero {
    min-height: 100dvh;
    padding-top: 70px;
  }
  
  .hero .container {
    grid-template-columns: minmax(0, 1fr);
    text-align: center;
    gap: 32px;
  }

  /* 允许网格子项收缩，避免搜索区/内容区最小宽度把页面撑宽 */
  .hero .container > * {
    min-width: 0;
  }
  
  .hero h1 {
    font-size: 1.6rem;
  }
  
  .hero-desc {
    margin: 0 auto 28px;
    font-size: 0.78rem;
  }
  
  .hero-actions {
    justify-content: center;
    flex-direction: column;
    align-items: center;
  }
  
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }
  
  .hero-visual-inner {
    margin: 0 auto;
    max-width: 300px;
  }
  
  .hero-visual {
    order: -1;
    margin-bottom: 0;
  }
  
  .core-node {
    width: 60px;
    height: 60px;
  }
  
  .core-glow {
    width: 100px;
    height: 100px;
  }
  
  .core-icon svg {
    width: 28px;
    height: 28px;
  }
  
  .core-label {
    font-size: 0.6rem;
  }
  
  .node-icon {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }
  
  .node-label {
    font-size: 0.6rem;
    padding: 2px 7px;
  }
  
  .scroll-indicator {
    display: none;
  }
  
  .hero-badge {
    font-size: 0.78rem;
    padding: 6px 16px;
  }
  
  /* Sections */
  .section {
    padding: 56px 0;
  }
  
  .section-title {
    font-size: 1.7rem;
  }
  
  .section-subtitle {
    font-size: 0.95rem;
  }
  
  /* Eco Flow */
  .eco-flow {
    flex-direction: column;
    gap: 16px;
    margin-top: 40px;
  }
  
  .eco-step {
    padding: 20px 16px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 14px;
    text-align: left;
    align-items: center;
  }
  
  .eco-step:not(:last-child)::after {
    display: none;
  }
  
  .step-num {
    margin-bottom: 0 !important;
  }
  
  .step-icon-wrap {
    width: 44px;
    height: 44px;
    margin-bottom: 0;
  }
  
  .step-icon {
    font-size: 1.1rem;
  }
  
  .step-icon-bg {
    border-radius: 12px;
  }
  
  .eco-step h4 {
    grid-column: 2;
    margin-bottom: 2px;
  }
  
  .eco-step p {
    grid-column: 2;
    margin-bottom: 10px;
    max-width: none;
  }
  
  .step-meta {
    grid-column: 1 / -1;
    max-width: none;
    padding: 8px 12px;
  }
  
  .eco-step .step-num {
    margin: 0;
    grid-row: 1 / 3;
    align-self: center;
  }
  
  .step-icon-wrap {
    display: none;
  }
  
  .eco-step h4 {
    margin-bottom: 4px;
  }
  
  .eco-step p {
    font-size: 0.85rem;
  }
  
  /* Solution Tabs */
  .solution-tabs {
    gap: 8px;
    margin: 32px 0 28px;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 4px;
    justify-content: flex-start;
  }
  
  .solution-tabs::-webkit-scrollbar {
    display: none;
  }
  
  .solution-tab {
    padding: 10px 20px;
    font-size: 0.85rem;
    white-space: nowrap;
    flex-shrink: 0;
  }
  
  .solution-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .sc-icon-wrap {
    width: 44px;
    height: 44px;
    margin: 20px 0 0 20px;
  }
  
  .sc-icon {
    font-size: 1.1rem;
  }
  
  .solution-card h4 {
    margin: 12px 20px 0;
    font-size: 0.95rem;
  }
  
  .solution-card p {
    margin: 6px 20px 0;
    font-size: 0.78rem;
  }
  
  .sc-tags {
    margin: 10px 20px 16px;
  }
  
  .sc-tag {
    font-size: 0.65rem;
    padding: 2px 10px;
  }
  
  .solution-card h4 {
    font-size: 1.05rem;
  }
  
  .solution-card p {
    font-size: 0.85rem;
  }
  
  /* Features */
  .feature-showcase {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 40px;
  }
  
  .feature-showcase.reverse {
    direction: ltr;
  }
  
  .feature-content h3 {
    font-size: 1.4rem;
  }
  
  .feature-content p {
    font-size: 0.9rem;
    margin-bottom: 18px;
  }
  
  .feature-list li {
    font-size: 0.88rem;
    gap: 12px;
  }
  
  .feature-list li .check {
    width: 20px;
    height: 20px;
    min-width: 20px;
    font-size: 0.65rem;
  }
  
  .feature-mockup {
    aspect-ratio: 16/10;
    font-size: 3rem;
    border-radius: var(--radius-md);
  }
  
  .feature-mockup .mockup-label {
    padding: 12px 16px;
    font-size: 0.78rem;
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
  
  /* Eco Cards */
  .eco-cards {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 40px;
  }
  
  .eco-card-inner {
    padding: 24px 20px 20px;
  }
  
  .eco-features {
    grid-template-columns: 1fr 1fr;
  }
  
  .eco-card {
    padding: 32px 24px;
  }
  
  .eco-card .eco-icon {
    width: 60px;
    height: 60px;
    font-size: 1.6rem;
    margin-bottom: 18px;
  }
  
  .eco-card h4 {
    font-size: 1.1rem;
  }
  
  .eco-card p {
    font-size: 0.85rem;
  }
  
  /* CTA */
  .cta-section {
    padding: 64px 0;
  }
  
  .cta-box {
    padding: 40px 24px;
    border-radius: var(--radius-lg);
  }
  
  .cta-box h2 {
    font-size: 1.6rem;
  }
  
  .cta-box p {
    font-size: 0.95rem;
    margin-bottom: 28px;
  }
  
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-actions .btn-primary,
  .cta-actions .btn-secondary {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }
  
  /* Footer */
  .footer {
    padding: 40px 0 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 28px;
  }
  
  .footer-brand p {
    max-width: 100%;
    font-size: 0.85rem;
  }
  
  .footer h5 {
    font-size: 0.8rem;
    margin-bottom: 14px;
  }
  
  .footer a {
    font-size: 0.85rem;
    margin-bottom: 10px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    font-size: 0.8rem;
    padding-top: 20px;
  }
}

/* --- 小屏手机 376px ~ 576px --- */
@media (min-width: 376px) and (max-width: 576px) {
  .container {
    padding: 0 18px;
  }
  
  .hero h1 {
    font-size: 1.35rem;
  }
  
  .hero-desc {
    font-size: 0.67rem;
  }
  
  .hero-visual-inner {
    max-width: 260px;
  }
  
  .core-node {
    width: 52px;
    height: 52px;
  }
  
  .core-glow {
    width: 80px;
    height: 80px;
  }
  
  .core-icon svg {
    width: 22px;
    height: 22px;
  }
  
  .core-label {
    font-size: 0.55rem;
  }
  
  .node-icon {
    width: 32px;
    height: 32px;
    font-size: 0.85rem;
  }
  
  .node-label {
    font-size: 0.55rem;
    padding: 1px 6px;
  }
  
  .section {
    padding: 48px 0;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .section-subtitle {
    font-size: 0.88rem;
  }
  
  .eco-step {
    padding: 22px 18px;
    grid-template-columns: 40px 1fr;
  }
  
  .eco-step .step-num {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .eco-step h4 {
    font-size: 0.95rem;
  }
  
  .btn-primary,
  .btn-secondary {
    padding: 14px 28px;
    font-size: 0.9rem;
  }
  
  .solution-card {
    padding: 24px 18px;
  }
  
  .feature-content h3 {
    font-size: 1.25rem;
  }
  
  .feature-mockup {
    font-size: 2.5rem;
  }
  
  .cta-box {
    padding: 32px 18px;
  }
  
  .cta-box h2 {
    font-size: 1.4rem;
  }
}

/* --- 超小屏手机 375px 以下 --- */
@media (max-width: 375px) {
  html {
    font-size: 14px;
  }
  
  .container {
    padding: 0 14px;
  }
  
  .hero h1 {
    font-size: 1.2rem;
  }
  
  .hero-desc {
    font-size: 0.6rem;
  }
  
  .hero-visual-inner {
    max-width: 220px;
  }
  
  .node-icon {
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
  }
  
  .node-label {
    font-size: 0.5rem;
    padding: 1px 5px;
  }
  
  .core-node {
    width: 44px;
    height: 44px;
  }
  
  .core-glow {
    width: 70px;
    height: 70px;
  }
  
  .core-icon svg {
    width: 18px;
    height: 18px;
  }
  
  .core-label {
    display: none;
  }
  
  .section {
    padding: 40px 0;
  }
  
  .section-title {
    font-size: 1.35rem;
  }
  
  .section-subtitle {
    font-size: 0.85rem;
  }
  
  .solution-tab {
    padding: 8px 14px;
    font-size: 0.8rem;
  }
  
  .btn-primary,
  .btn-secondary {
    padding: 12px 24px;
    font-size: 0.85rem;
    width: 100%;
    justify-content: center;
  }
  
  .eco-card {
    padding: 24px 18px;
  }
  
  .feature-mockup {
    font-size: 2rem;
  }
  
  .cta-box {
    padding: 28px 16px;
    border-radius: var(--radius-md);
  }
  
  .cta-box h2 {
    font-size: 1.3rem;
  }
  
  .cta-box p {
    font-size: 0.85rem;
  }
  
  .footer {
    padding: 32px 0 20px;
  }
}

/* --- 折叠屏 / 特殊小屏 320px 以下 --- */
@media (max-width: 320px) {
  html {
    font-size: 13px;
  }
  
  .container {
    padding: 0 12px;
  }
  
  .hero h1 {
    font-size: 1.05rem;
  }
  
  .hero-visual-inner {
    max-width: 180px;
  }
  
  .node-icon {
    width: 24px;
    height: 24px;
    font-size: 0.65rem;
  }
  
  .node-label {
    display: none;
  }
  
  .core-node {
    width: 36px;
    height: 36px;
  }
  
  .core-glow {
    width: 60px;
    height: 60px;
  }
  
  .core-icon svg {
    width: 16px;
    height: 16px;
  }
  
  .section-title {
    font-size: 1.2rem;
  }
}

/* --- 深色模式 Safari 安全区域适配 --- */
@supports (padding: env(safe-area-inset-bottom)) {
  .hero {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  
  .footer {
    padding-bottom: calc(24px + env(safe-area-inset-bottom));
  }
}

/* --- 打印样式 --- */
@media print {
  .navbar,
  .scroll-indicator,
  #particles-canvas,
  .hero-visual {
    display: none !important;
  }
  
  .hero {
    min-height: auto;
    padding: 40px 0;
    background: #0A0A1A !important;
  }
  
  .section {
    padding: 40px 0;
    page-break-inside: avoid;
  }
  
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
}

/* ============================================
   ===== AI+ 数据线索 / 私域营销 新板块 =====
   ============================================ */

/* --- 数据线索 Section --- */
.data-section {
  background: linear-gradient(180deg, #0F0A1E 0%, #0A0A1A 100%);
}

.market-section {
  background: linear-gradient(180deg, #0A0A1A 0%, #0F0A1E 100%);
}

/* 数据源 → AI → 线索 管道 */
.data-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  margin: 48px 0 0;
  padding: 26px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.data-flow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(37,99,235,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.df-stage {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  z-index: 1;
}

.df-chip {
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.2);
  transition: var(--transition);
  animation: dfChipFloat 3.2s ease-in-out infinite;
  white-space: nowrap;
}

.df-c2 { background: rgba(6,182,212,0.08); border-color: rgba(6,182,212,0.2); animation-delay: .4s; }
.df-c3 { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); animation-delay: .8s; }
.df-c4 { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.2); animation-delay: 1.2s; }
.df-c5 { background: rgba(244,63,94,0.08); border-color: rgba(244,63,94,0.2); animation-delay: 1.6s; }

.df-chip:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(37,99,235,0.12);
}

@keyframes dfChipFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.df-arrow {
  color: var(--secondary-light);
  font-size: 1.3rem;
  z-index: 1;
  animation: dfArrow 1.6s ease-in-out infinite;
}

@keyframes dfArrow {
  0%, 100% { opacity: .4; transform: translateX(0); }
  50% { opacity: 1; transform: translateX(5px); }
}

.df-core,
.df-out {
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  z-index: 1;
}

.df-core {
  background: var(--gradient-1);
  color: #fff;
  box-shadow: 0 6px 28px rgba(37,99,235,0.35);
}

.df-out {
  background: rgba(6,182,212,0.12);
  border: 1px solid rgba(6,182,212,0.35);
  color: var(--secondary-light);
  box-shadow: 0 0 28px rgba(6,182,212,0.15);
}

/* 数据卡片网格（私域经营区块，现为 2 张卡片） */
.data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.data-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.data-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s ease;
  z-index: 1;
}

.data-card:hover::before {
  transform: scaleX(1);
}

.data-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(37,99,235,0.25);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.25), 0 0 30px rgba(37,99,235,0.05);
}

.dc-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.dc-num {
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #93C5FD, #67E8F9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: .85;
}

.dc-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background: rgba(37,99,235,0.08);
  border: 1px solid rgba(37,99,235,0.15);
  border-radius: 12px;
  transition: var(--transition);
}

.data-card:hover .dc-icon {
  transform: scale(1.08);
  background: rgba(37,99,235,0.14);
}

.dc-head h4 {
  font-size: 1.05rem;
  font-weight: 700;
  transition: var(--transition);
}

.data-card:hover .dc-head h4 {
  background: linear-gradient(135deg, #F8FAFC, #93C5FD);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dc-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dc-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.dc-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 2px;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6,182,212,0.12);
  border-radius: 50%;
  color: var(--secondary-light);
  font-size: 0.6rem;
  font-weight: 800;
}

.dc-list li.dc-link-item::before {
  content: '↗';
  background: rgba(245,158,11,0.14);
  color: #FCD34D;
}

.dc-hl {
  font-weight: 800;
  background: linear-gradient(135deg, #FCD34D, #67E8F9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dc-ext-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #0E7490;
  border-bottom: 1px solid rgba(6,182,212,0.4);
  transition: var(--transition);
  word-break: break-all;
}

.dc-ext-link:hover {
  color: #B45309;
  border-color: rgba(245,158,11,0.6);
}

/* 跨列卡片（知产+企业数据） */
.dc-span-2 {
  grid-column: span 2;
}

.dc-list-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 28px;
}

/* 私域营销板块 青色主题 */
.market-section .data-card::before {
  background: linear-gradient(90deg, #06B6D4, #F59E0B);
}

.market-section .data-card:hover {
  border-color: rgba(6,182,212,0.25);
  box-shadow: 0 16px 48px rgba(0,0,0,0.25), 0 0 30px rgba(6,182,212,0.06);
}

.market-section .dc-icon {
  background: rgba(6,182,212,0.08);
  border-color: rgba(6,182,212,0.15);
}

.market-section .data-card:hover .dc-icon {
  background: rgba(6,182,212,0.14);
}

.market-section .data-card:hover .dc-head h4 {
  background: linear-gradient(135deg, #F8FAFC, #67E8F9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.market-section .dc-num {
  background: linear-gradient(135deg, #67E8F9, #FCD34D);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 响应式 */
@media (max-width: 992px) {
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 标题下的副标题行（更小字号、单行显示） */
.section-title-sub {
  display: block;
  margin-top: 14px;
  font-size: 0.42em;
  font-weight: 600;
  letter-spacing: 2px;
  white-space: nowrap;
  background: linear-gradient(135deg, #67E8F9 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (max-width: 768px) {
  .data-grid {
    grid-template-columns: 1fr;
  }

  .dc-span-2 {
    grid-column: span 1;
  }

  .dc-list-cols {
    grid-template-columns: 1fr;
  }

  .data-flow {
    gap: 14px;
    padding: 20px;
  }
}

/* --- 数据线索选项卡（左侧布局） --- */
.data-tabs-wrap {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 44px;
}

.data-tabs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: sticky;
  top: 90px;
}

.data-tab {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  width: 100%;
  padding: 12px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.data-tab:hover {
  border-color: rgba(37,99,235,0.35);
  color: var(--text-primary);
}

.data-tab.active {
  background: var(--gradient-1);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 24px rgba(37,99,235,0.35);
}

.dt-num {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(37,99,235,0.15);
  color: var(--primary-light);
}

.data-tab.active .dt-num {
  background: rgba(255,255,255,0.22);
  color: #fff;
}

/* 数据面板 */
.data-panel {
  display: none;
  margin-top: 0;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.5s ease;
}

.data-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
}

.data-panel.active {
  display: grid;
}

.dp-content h4 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #F8FAFC, #93C5FD);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dp-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 18px;
}

.dp-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dp-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.dp-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 2px;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6,182,212,0.12);
  border-radius: 50%;
  color: var(--secondary-light);
  font-size: 0.6rem;
  font-weight: 800;
}

.dp-list li .dc-ext-link {
  font-size: 0.85rem;
}

/* 可视化区域 */
.dp-visual {
  position: relative;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.viz-head {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--primary-light);
  margin-bottom: 16px;
}

/* 01 续展时间轴 */
.viz-timeline { width: 100%; }

.vt-track {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.vt-stage {
  flex: 1;
  min-width: 74px;
  text-align: center;
  padding: 10px 6px;
  background: rgba(37,99,235,0.06);
  border: 1px solid rgba(37,99,235,0.15);
  border-radius: 10px;
  transition: var(--transition);
}

.vt-stage i {
  display: block;
  font-style: normal;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-light);
  margin-bottom: 4px;
}

.vt-stage span {
  font-size: 0.7rem;
  color: var(--text-secondary);
}

.vt-stage.active {
  background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
  border-color: rgba(37, 99, 235, 0.55);
  box-shadow: 0 0 22px rgba(37, 99, 235, 0.25);
}

.vt-stage.active i,
.vt-stage.active span {
  color: #fff;
}

.vt-stage.warn {
  background: rgba(245,158,11,0.1);
  border-color: rgba(245,158,11,0.35);
}

.vt-stage.warn i { color: #FCD34D; }

.vt-stats {
  display: flex;
  gap: 12px;
}

.vt-stat {
  flex: 1;
  text-align: center;
  padding: 14px 10px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 12px;
}

.vt-stat b {
  display: block;
  font-size: 1.3rem;
  font-weight: 800;
  color: #FCD34D;
}

.vt-stat span {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* 02 转让商标速览 */
.viz-transfer { width: 100%; }

.vf-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(37,99,235,0.05);
  border: 1px solid rgba(37,99,235,0.12);
  border-radius: 12px;
  margin-bottom: 10px;
}

.vf-tm {
  flex: 1;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.vf-tm span { color: #FCD34D; }

.vf-meta { font-size: 0.75rem; color: var(--text-muted); }

.vf-price {
  font-size: 0.95rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FCD34D, #67E8F9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.vf-badge {
  margin-top: 6px;
  text-align: center;
  padding: 8px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(6,182,212,0.1);
  border: 1px dashed rgba(6,182,212,0.35);
  color: var(--secondary-light);
}

/* 03 商标检索 */
.viz-query { width: 100%; }

.vq-search {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(37,99,235,0.25);
  border-radius: 12px;
  margin-bottom: 14px;
}

.vq-search > span { font-size: 0.9rem; }

.vq-input {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.vq-search button {
  border: none;
  padding: 6px 16px;
  border-radius: 8px;
  background: var(--gradient-1);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.vq-search button:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.vq-search button:active {
  transform: translateY(0);
}

.vq-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 0.85rem;
}

.vq-row b { flex: 1; color: var(--text-primary); }
.vq-row span { color: var(--text-muted); font-size: 0.75rem; }

.vq-row i {
  font-style: normal;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.68rem;
  font-weight: 700;
}

.vq-row i.ok { background: rgba(16,185,129,0.12); color: #6EE7B7; }
.vq-row i.mid { background: rgba(245,158,11,0.12); color: #FCD34D; }
.vq-row i.no { background: rgba(244,63,94,0.12); color: #FDA4AF; }

.vq-export {
  margin-top: 6px;
  text-align: center;
  padding: 8px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(37,99,235,0.1);
  border: 1px dashed rgba(37,99,235,0.35);
  color: var(--primary-light);
}

/* 04 AI 风险评分 */
.viz-risk2 { width: 100%; text-align: center; }

.vr-gauge {
  position: relative;
  width: 150px;
  height: 150px;
  margin: 0 auto 14px;
}

.vr-gauge svg { width: 100%; height: 100%; }

.vr-arc {
  stroke-dasharray: 226;
  animation: vrFill 1.2s ease both;
}

@keyframes vrFill {
  from { stroke-dashoffset: 226; }
}

.vr-score {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.vr-score b { font-size: 2rem; font-weight: 900; color: #FCD34D; }
.vr-score span { font-size: 0.72rem; color: var(--text-muted); }

.vr-tags {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.vr-tags span {
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.2);
  color: var(--primary-light);
}

.vr-tags span.warn {
  background: rgba(245,158,11,0.12);
  border-color: rgba(245,158,11,0.3);
  color: #FCD34D;
}

/* 05 企业知产速览 */
.viz-enterprise { width: 100%; }

.ve-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 10px;
  margin-bottom: 8px;
  font-size: 0.85rem;
}

.ve-row b { color: var(--text-primary); font-weight: 700; }
.ve-row span { color: var(--secondary-light); font-size: 0.75rem; }

.ve-badge {
  margin-top: 6px;
  text-align: center;
  padding: 8px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(6,182,212,0.1);
  border: 1px dashed rgba(6,182,212,0.35);
  color: var(--secondary-light);
}

/* 选项卡响应式 */
@media (max-width: 992px) {
  .data-tabs-wrap {
    grid-template-columns: 200px 1fr;
    gap: 20px;
  }

  .data-panel {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .data-tabs-wrap {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 36px;
  }

  .data-tabs {
    flex-direction: row;
    gap: 8px;
    overflow-x: auto;
    padding: 4px;
    scrollbar-width: none;
    position: static;
  }

  .data-tabs::-webkit-scrollbar { display: none; }

  .data-tab {
    width: auto;
    padding: 10px 16px;
    font-size: 0.85rem;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .data-panel {
    padding: 24px 20px;
  }

  .dp-visual {
    min-height: 0;
  }
}

/* 单行副标题 */
.section-subtitle-nowrap {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 768px) {
  .section-subtitle-nowrap {
    font-size: 0.85rem;
  }
}

@media (max-width: 576px) {
  .section-subtitle-nowrap {
    font-size: 0.72rem;
  }
}

@media (max-width: 375px) {
  .section-subtitle-nowrap {
    font-size: 0.66rem;
  }
}

/* ============================================
   ===== 顶部导航 SaaS 元素 =====
   ============================================ */
/* 占位元素：将登录/按钮推至导航右侧 */
.nav-li-spacer {
  flex: 1;
}

.nav-login {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-login:hover {
  color: var(--primary-light);
}

/* 中屏以下隐藏装饰徽章，为 SaaS 元素让出空间 */
@media (max-width: 1280px) {
  .navbar-badge {
    display: none;
  }
}

/* 移动端菜单内 SaaS 元素 */
@media (max-width: 768px) {
  .nav-li-spacer {
    display: none;
  }
}

/* ===== 英雄区焦点搜索 ===== */
.hero-search {
  grid-column: 1 / -1;
  justify-self: center;
  order: -2;
  width: 100%;
  max-width: 760px;
  margin-top: 0;
  margin-bottom: 0;
  position: relative;
  z-index: 9999;
}

.hs-box {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 8px 8px 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(37,99,235,0.35);
  border-radius: 60px;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 40px rgba(37,99,235,0.18);
  transition: var(--transition);
}

.hs-box:focus-within {
  border-color: rgba(37,99,235,0.65);
  background: rgba(255,255,255,0.07);
  box-shadow: 0 12px 50px rgba(37,99,235,0.3);
}

.hs-icon {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.hs-box input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-sans);
}

.hs-box input::placeholder {
  color: var(--text-muted);
}

.hs-btn {
  border: none;
  padding: 13px 30px;
  border-radius: 50px;
  background: var(--gradient-1);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  flex-shrink: 0;
}

.hs-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(37,99,235,0.4);
}

.hs-hot {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.82rem;
}

.hs-hot > span {
  color: var(--text-muted);
}

.hs-hot a {
  padding: 5px 14px;
  border-radius: 50px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-secondary);
  transition: var(--transition);
}

.hs-hot a:hover {
  color: var(--primary-light);
  border-color: rgba(37,99,235,0.4);
}

@media (max-width: 768px) {
  .hero-search {
    max-width: 100%;
    margin-top: 0;
    margin-bottom: 0;
  }

  .hs-box {
    padding: 6px 6px 6px 14px;
  }

  .hs-btn {
    padding: 11px 20px;
    font-size: 0.9rem;
  }

  .hs-hot {
    justify-content: center;
  }
}

/* 搜索通栏与下方内容更紧凑 */
.hero .container {
  row-gap: 20px;
}

/* ============================================
   ===== 浅色主题（Light Theme）=====
   ============================================ */
body {
  background: var(--bg-dark);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
}

/* 浅色主题（滚动后）下 logo 文字为品牌紫纯色 */
.navbar.scrolled .logo-text {
  color: #2563EB;
}

/* 主标题 / 渐变文字（深色起点，浅底可读） */
.section-title,
.feature-content h3,
.cta-box h2,
.data-card:hover .dc-head h4,
.market-section .data-card:hover .dc-head h4,
.dp-content h4 {
  background: linear-gradient(135deg, #1B2A4A 0%, #2563EB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title-sub {
  background: linear-gradient(135deg, #0891B2 0%, #2563EB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dc-hl,
.vf-price {
  background: linear-gradient(135deg, #2563EB 0%, #0891B2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.vt-stat b,
.vr-score b {
  color: #2563EB;
}

/* 板块背景 */
.data-section {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--bg-dark) 100%);
}

.market-section {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #FFFFFF 100%);
}

.cta-section {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #FFFFFF 100%);
}

.cta-box {
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.15);
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.06);
}

.footer {
  background: #EEF0F6;
  border-top: 1px solid rgba(37, 99, 235, 0.1);
}

.footer-bottom {
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}

/* 卡片 / 面板 / 管道 */
.data-card,
.data-panel,
.data-flow {
  background: #FFFFFF;
}

.data-card {
  box-shadow: 0 10px 34px rgba(15, 23, 42, 0.05);
}

.data-panel {
  border-color: rgba(37, 99, 235, 0.14);
}

.vt-stat,
.vq-row,
.ve-row {
  background: #F4F5FA;
  border-color: rgba(15, 23, 42, 0.05);
}

.vq-search {
  background: #FFFFFF;
  border-color: rgba(37, 99, 235, 0.2);
}

/* 搜索框（浅色） */
.hs-box {
  background: #FFFFFF;
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: 0 10px 34px rgba(37, 99, 235, 0.12);
}

.hs-box:focus-within {
  border-color: rgba(37, 99, 235, 0.55);
  background: #FFFFFF;
  box-shadow: 0 12px 46px rgba(37, 99, 235, 0.2);
}

/* Hero 可视化节点标签 */
.hv-n-label {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(37, 99, 235, 0.16);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.hero-badge,
.navbar-badge {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.18);
  color: #1D4ED8;
}

/* ===== 英雄区搜索选项卡（浅色） ===== */
.hs-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.hs-tab {
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 50px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.hs-tab:hover {
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.4);
}

.hs-tab.active {
  background: var(--gradient-1);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.3);
}

/* ===== 搜索分类选择器（浅色） ===== */
.hero-search {
  position: relative;
}

.hs-cat {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 40px;
  background: rgba(37, 99, 235, 0.06);
  border: 1px solid rgba(37, 99, 235, 0.18);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
  flex-shrink: 0;
}

.hs-cat:hover,
.hs-cat.open {
  border-color: rgba(37, 99, 235, 0.4);
  color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
}

.hs-cat-arrow {
  font-size: 0.7rem;
  transition: transform 0.3s ease;
}

.hs-cat.open .hs-cat-arrow {
  transform: rotate(180deg);
}

.hs-cat-divider {
  width: 1px;
  height: 22px;
  background: rgba(37, 99, 235, 0.15);
  flex-shrink: 0;
}

.hs-cat-panel {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.14);
  z-index: 9999;
  animation: fadeInUp 0.25s ease;
}

.hs-cat-panel.open {
  display: block;
}

.hsc-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.hsc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.hsc-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #F4F5FA;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.hsc-option:hover {
  border-color: rgba(37, 99, 235, 0.3);
}

.hsc-option input {
  accent-color: #2563EB;
}

.hsc-option:has(input:checked) {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.4);
  color: var(--primary);
  font-weight: 600;
}

.hsc-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.hsc-clear {
  padding: 8px 18px;
  border-radius: 40px;
  background: transparent;
  border: 1px solid rgba(37, 99, 235, 0.2);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.hsc-clear:hover {
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.4);
}

.hsc-confirm {
  padding: 8px 22px;
  border-radius: 40px;
  background: var(--gradient-1);
  border: none;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
}

.hsc-confirm:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

@media (max-width: 768px) {
  .hsc-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hsc-grid.province {
    grid-template-columns: repeat(3, 1fr);
  }

  .hs-cat {
    font-size: 0.8rem;
    padding: 6px 10px;
  }

  .hs-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding: 4px;
    scrollbar-width: none;
    margin-bottom: 12px;
  }

  .hs-tabs::-webkit-scrollbar { display: none; }

  .hs-tab {
    white-space: nowrap;
    flex-shrink: 0;
  }
}

/* 查商标：隐藏搜索框前的分类选择 */
.hs-cat.hidden,
.hs-cat-divider.hidden {
  display: none;
}

/* 查续展：隐藏搜索框（输入框 + 搜索按钮），仅保留筛选条 */
.hs-box.hidden {
  display: none;
}

/* 尼斯分类网格（查风险）：45 类，可滚动 */
.hsc-grid.nice {
  max-height: 280px;
  overflow-y: auto;
  padding-right: 4px;
}

.hsc-grid.nice::-webkit-scrollbar {
  width: 6px;
}

.hsc-grid.nice::-webkit-scrollbar-thumb {
  background: rgba(37, 99, 235, 0.25);
  border-radius: 3px;
}

/* 省份网格：总高度超过 300px 时下拉滚动 */
.hsc-grid.province {
  max-height: 300px;
  overflow-y: auto;
  padding-right: 4px;
}

.hsc-grid.province::-webkit-scrollbar {
  width: 6px;
}

.hsc-grid.province::-webkit-scrollbar-thumb {
  background: rgba(37, 99, 235, 0.25);
  border-radius: 3px;
}

/* 省份网格（桌面）：每行 6 个 */
@media (min-width: 769px) {
  .hsc-grid.province {
    grid-template-columns: repeat(6, 1fr);
  }
}

/* ===== 查续展 筛选条 ===== */
.hs-renewal {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 10px 10px 16px;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.28);
  border-radius: 60px;
  box-shadow: 0 10px 34px rgba(37, 99, 235, 0.12);
  transition: var(--transition);
}

.hs-renewal.hidden {
  display: none;
}

.hs-filter {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hsf-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.hsf-select {
  padding: 8px 12px;
  border-radius: 10px;
  background: #F4F5FA;
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition);
  outline: none;
  max-width: 150px;
}

.hsf-select:focus {
  border-color: rgba(37, 99, 235, 0.45);
}

.hs-renewal .hs-btn {
  padding: 11px 26px;
  font-size: 0.9rem;
  margin-left: auto;
}

@media (max-width: 768px) {
  .hs-renewal {
    border-radius: 20px;
    padding: 12px;
  }

  .hs-filter {
    width: 100%;
    flex-wrap: wrap;
  }

  .hs-filter .hsf-select {
    flex: 1;
    min-width: 0;
  }

  .hs-renewal .hs-btn {
    width: 100%;
    margin-left: 0;
  }
}

/* ===== 查转让 筛选表单 ===== */
.hs-transfer {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: nowrap;
  padding: 10px 10px 10px 16px;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.28);
  border-radius: 60px;
  box-shadow: 0 10px 34px rgba(37, 99, 235, 0.12);
  transition: var(--transition);
}

.hs-transfer.hidden {
  display: none;
}

.hst-field {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hst-field-main {
  flex: 1 1 auto;
  min-width: 0;
}

.hst-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.hst-input {
  width: 200px;
  padding: 8px 12px;
  border-radius: 10px;
  background: #F4F5FA;
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
}

.hst-input:focus {
  border-color: rgba(37, 99, 235, 0.45);
  background: #FFFFFF;
}

.hst-num {
  width: 50px;
}

.hst-select {
  width: 115px;
  padding: 8px 12px;
  border-radius: 10px;
  background: #F4F5FA;
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}

.hst-select:focus {
  border-color: rgba(37, 99, 235, 0.45);
}

.hs-transfer .hs-btn {
  padding: 11px 26px;
  font-size: 0.9rem;
  margin-left: auto;
  flex-shrink: 0;
}

.hst-field-main .hst-input {
  width: 100%;
  min-width: 0;
}

.hst-input-flex {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
}

@media (max-width: 768px) {
  .hs-transfer {
    border-radius: 20px;
    padding: 12px;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .hs-transfer::-webkit-scrollbar {
    display: none;
  }

  .hst-field {
    flex: 0 0 auto;
    width: auto;
    flex-wrap: nowrap;
  }

  .hst-field .hst-input,
  .hst-field .hst-select {
    flex: none;
    min-width: 0;
  }

  .hst-field-main .hst-input {
    width: 140px;
  }

  .hst-num {
    width: 60px;
  }

  .hs-transfer .hs-btn {
    flex: 0 0 auto;
    width: auto;
    margin-left: 8px;
  }
}

/* ===== 查分类 表单（产品名称 + 主营范围） ===== */
.hs-classify {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: nowrap;
  padding: 10px 10px 10px 16px;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.28);
  border-radius: 60px;
  box-shadow: 0 10px 34px rgba(37, 99, 235, 0.12);
  transition: var(--transition);
}

.hs-classify.hidden {
  display: none;
}

.hsc-field {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 0;
  min-width: 0;
}

.hsc-field .hst-input {
  width: 100%;
  min-width: 0;
}

.hsc-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.hsc-divider {
  flex: 0 0 1px;
  height: 26px;
  background: rgba(37, 99, 235, 0.18);
}

.hs-classify .hs-btn {
  padding: 11px 26px;
  font-size: 0.9rem;
  margin-left: auto;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .hs-classify {
    border-radius: 20px;
    padding: 12px;
    flex-wrap: wrap;
  }

  .hsc-divider {
    display: none;
  }

  .hsc-field {
    flex: 1 1 100%;
  }

  .hs-classify .hs-btn {
    width: 100%;
    margin-left: 0;
  }
}

/* ============================================
   ===== 商标检索独立页（trademark-search.html）=====
   ============================================ */
/* 检索页首屏：单列居中 */
.search-hero {
  min-height: auto;
  display: block;
  padding-top: 140px;
  padding-bottom: 60px;
}

.search-hero .container {
  display: block;
  max-width: 900px;
  text-align: center;
}

.search-hero .hero-search {
  margin: 0 auto;
}

/* 检索页标题 */
.search-title {
  margin-top: 56px;
  text-align: center;
}

.search-title h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.search-title p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.9;
  max-width: 620px;
  margin: 0 auto;
}

/* 查风险优势 */
.risk-adv-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  margin-top: 56px;
  align-items: start;
}

/* 左侧选项卡 */
.risk-adv-tabs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.06);
  position: sticky;
  top: 96px;
}

.risk-adv-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.risk-adv-tab:hover {
  background: rgba(37, 99, 235, 0.05);
}

.risk-adv-tab.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.10), rgba(8, 145, 178, 0.08));
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.10);
}

.rat-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 800;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  transition: var(--transition);
}

.risk-adv-tab.active .rat-num {
  background: linear-gradient(135deg, #2563EB, #0891B2);
  color: #FFFFFF;
}

.rat-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* 右侧内容面板 */
.risk-adv-panels {
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.06);
  min-height: 460px;
  position: relative;
  overflow: hidden;
}

.risk-adv-panels::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #2563EB 0%, #0891B2 100%);
}

.risk-adv-panel {
  display: none;
  animation: riskAdvFade 0.4s ease;
}

.risk-adv-panel.active {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 32px;
  align-items: center;
}

@keyframes riskAdvFade {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.ra-num {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: linear-gradient(135deg, #2563EB, #0891B2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
}

.risk-adv-panel h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
  line-height: 1.4;
}

.ra-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 22px;
}

.ra-example {
  background: rgba(37, 99, 235, 0.05);
  border: 1px dashed rgba(37, 99, 235, 0.28);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

.ra-example strong {
  color: var(--primary);
  font-weight: 700;
  margin-right: 2px;
}

/* 可视化区容器 */
.ra-viz {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px;
  background: linear-gradient(160deg, rgba(37, 99, 235, 0.05), rgba(8, 145, 178, 0.04));
  border: 1px solid rgba(37, 99, 235, 0.10);
  border-radius: 16px;
}

/* 统计指标卡 */
.ra-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.ra-stat {
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 14px;
  padding: 14px 8px;
  text-align: center;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.06);
}

.ra-stat-val {
  display: block;
  font-size: 1.45rem;
  font-weight: 900;
  line-height: 1.1;
  background: linear-gradient(135deg, #2563EB, #0891B2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ra-stat-unit {
  font-size: 0.8rem;
  font-weight: 800;
  margin-left: 1px;
}

.ra-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 0.76rem;
  color: var(--text-secondary);
}

/* 图表容器 */
.ra-chart {
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.10);
  border-radius: 14px;
  padding: 16px 16px 8px;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.05);
}

.ra-chart-title {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

/* 进度条行 */
.ra-bar-row {
  margin-bottom: 12px;
}

.ra-bar-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.ra-bar-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.ra-bar-pct {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
}

.ra-bar {
  height: 8px;
  border-radius: 99px;
  background: rgba(37, 99, 235, 0.10);
  overflow: hidden;
}

.ra-bar > span {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, #2563EB, #0891B2);
  animation: raBarGrow 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes raBarGrow {
  from { width: 0 !important; }
}

/* 近似度仪表条 */
.ra-gauge-row {
  margin-bottom: 12px;
}

.ra-gauge-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.ra-gauge-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.ra-gauge-score {
  font-size: 0.76rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 99px;
}

.ra-gauge-score.danger { background: rgba(239, 68, 68, 0.10); color: #DC2626; }
.ra-gauge-score.warn { background: rgba(245, 158, 11, 0.12); color: #D97706; }
.ra-gauge-score.ok { background: rgba(16, 185, 129, 0.10); color: #059669; }

.ra-gauge {
  height: 8px;
  border-radius: 99px;
  background: rgba(37, 99, 235, 0.10);
  overflow: hidden;
}

.ra-gauge > span {
  display: block;
  height: 100%;
  border-radius: 99px;
  animation: raBarGrow 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.ra-gauge > span.danger { background: linear-gradient(90deg, #F87171, #DC2626); }
.ra-gauge > span.warn { background: linear-gradient(90deg, #FBBF24, #D97706); }
.ra-gauge > span.ok { background: linear-gradient(90deg, #34D399, #059669); }

/* 成功率汇总条 */
.ra-rate {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px dashed rgba(37, 99, 235, 0.15);
}

.ra-rate-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.ra-rate-val {
  font-size: 0.85rem;
  font-weight: 900;
  color: #DC2626;
  white-space: nowrap;
}

.ra-rate .ra-bar {
  flex: 1;
}

/* 跨类目识别卡 */
.ra-cross {
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.10);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.05);
}

.ra-cross-title {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.ra-cross-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.10);
  border-radius: 10px;
  margin-bottom: 10px;
}

.ra-cross-item:last-child { margin-bottom: 0; }

.ra-cross-from,
.ra-cross-to {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.ra-cross-from b,
.ra-cross-to b {
  color: var(--primary);
  font-weight: 800;
}

.ra-cross-arrow {
  font-size: 1rem;
  font-weight: 900;
  color: var(--secondary);
}

/* 报告生成流程 */
.ra-steps {
  display: flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.10);
  border-radius: 14px;
  padding: 14px 12px;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.05);
}

.ra-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.ra-step-num {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.9rem;
  font-weight: 800;
  background: linear-gradient(135deg, #2563EB, #0891B2);
  color: #FFFFFF;
}

.ra-step-txt {
  font-size: 0.76rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.ra-step-line {
  flex: 0 0 24px;
  height: 2px;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.4), rgba(8, 145, 178, 0.4));
  border-radius: 2px;
}

/* 报告结果清单 */
.ra-report {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.ra-report-item {
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 14px;
  padding: 14px 8px;
  text-align: center;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.06);
}

.ra-report-tag {
  display: block;
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.ra-report-item b {
  font-size: 1.05rem;
  font-weight: 900;
  background: linear-gradient(135deg, #2563EB, #0891B2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ra-report-cta {
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: #FFFFFF;
  background: linear-gradient(135deg, #2563EB, #0891B2);
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
}

@media (max-width: 900px) {
  .risk-adv-layout {
    grid-template-columns: 1fr;
  }

  .risk-adv-tabs {
    flex-direction: row;
    overflow-x: auto;
    position: static;
    padding: 12px;
  }

  .risk-adv-tab {
    flex: 0 0 auto;
    min-width: 150px;
  }

  .risk-adv-panel.active {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .search-hero {
    padding-top: 120px;
  }

  .search-hero .container {
    padding: 0 16px;
  }

  .risk-adv-panels {
    padding: 20px;
    min-height: 0;
  }

  .ra-viz {
    padding: 14px;
  }

  .ra-stat,
  .ra-report-item {
    padding: 12px 6px;
  }

  .ra-stat-val {
    font-size: 1.25rem;
  }
}

/* ============================================
   ===== 核心能力大区块（tuoke-automation.html）=====
   ============================================ */
.cap-block {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-bottom: 28px;
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.06);
  transition: var(--transition);
}

.cap-block:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 52px rgba(37, 99, 235, 0.12);
}

.cap-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.cap-num {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #2563EB, #0891B2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cap-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(8, 145, 178, 0.1));
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.cap-head h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
}

.cap-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 18px;
}

.cap-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cap-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.cap-list li strong {
  color: var(--primary);
  font-weight: 800;
  margin-right: 8px;
  background: rgba(37, 99, 235, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.82rem;
  white-space: nowrap;
}

.cap-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 2px;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 182, 212, 0.12);
  border-radius: 50%;
  color: var(--secondary-light);
  font-size: 0.6rem;
  font-weight: 800;
}

/* 可视化区 */
.cap-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  background: linear-gradient(145deg, rgba(37, 99, 235, 0.05), rgba(6, 182, 212, 0.04));
  border: 1px dashed rgba(37, 99, 235, 0.2);
  border-radius: 20px;
  padding: 24px;
}

.cv-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.cv-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 116px;
  padding: 16px 8px;
  background: #FFFFFF;
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.08);
  transition: var(--transition);
}

.cv-step:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.14);
}

.cv-step-icon {
  font-size: 1.6rem;
}

.cv-step span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.4;
}

.cv-arrow {
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 800;
}

@media (max-width: 900px) {
  .cap-block {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px;
  }

  .cap-head h3 {
    font-size: 1.2rem;
  }
}

/* ============================================
   ===== 预约演示弹窗（Hero 区预约演示）=====
   ============================================ */
.demo-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.demo-modal.open {
  opacity: 1;
  visibility: visible;
}

.demo-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}

.demo-modal-box {
  position: relative;
  width: 100%;
  max-width: 460px;
  background: #FFFFFF;
  border-radius: 24px;
  padding: 40px 32px;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.25);
  transform: translateY(20px) scale(0.98);
  transition: var(--transition);
}

.demo-modal.open .demo-modal-box {
  transform: translateY(0) scale(1);
}

.demo-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(37, 99, 235, 0.08);
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}

.demo-modal-close:hover {
  background: rgba(37, 99, 235, 0.15);
  color: var(--primary);
}

.demo-modal-box h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
  text-align: center;
}

.demo-modal-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 24px;
  line-height: 1.6;
}

.demo-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.demo-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  background: #F4F5FA;
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
}

.demo-input:focus {
  border-color: rgba(37, 99, 235, 0.5);
  background: #FFFFFF;
}

.demo-select {
  cursor: pointer;
}

.demo-submit {
  padding: 14px;
  border-radius: 50px;
  border: none;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  margin-top: 4px;
}

.demo-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.35);
}

.demo-success {
  text-align: center;
  color: #16A34A;
  font-weight: 600;
  padding: 20px 0;
}

/* 独立页标题下居中预约演示按钮 */
.btn-demo-center {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 28px;
  padding: 14px 36px;
}

/* ============================================
   ===== 使用申请弹窗（免费试用）=====
   ============================================ */
.apply-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.apply-modal.open {
  opacity: 1;
  visibility: visible;
}

.apply-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}

.apply-modal-box {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: #FFFFFF;
  border-radius: 24px;
  padding: 40px 32px;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.25);
  transform: translateY(20px) scale(0.98);
  transition: var(--transition);
}

.apply-modal.open .apply-modal-box {
  transform: translateY(0) scale(1);
}

.apply-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(37, 99, 235, 0.08);
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}

.apply-modal-close:hover {
  background: rgba(37, 99, 235, 0.15);
  color: var(--primary);
}

.apply-modal-box h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
  text-align: center;
}

.apply-modal-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 24px;
  line-height: 1.6;
}

.apply-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.apply-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.apply-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  background: #F4F5FA;
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: var(--transition);
}

.apply-input:focus {
  border-color: rgba(37, 99, 235, 0.5);
  background: #FFFFFF;
}

.apply-area {
  resize: vertical;
  min-height: 76px;
  font-family: var(--font-sans);
}

.apply-submit {
  padding: 14px;
  border-radius: 50px;
  border: none;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-sans);
  margin-top: 4px;
}

.apply-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.35);
}

.apply-success {
  text-align: center;
  color: #16A34A;
  font-weight: 600;
  padding: 20px 0;
}

@media (max-width: 480px) {
  .apply-row {
    grid-template-columns: 1fr;
  }
}


/* ============================================
   ===== 推广·AI辅助 流程链路式版式（全新）=====
   ============================================ */
.flow-section {
  background: var(--bg-dark);
  overflow: hidden;
}

.flow-section .section-subtitle {
  margin-top: 16px;
}

/* 垂直时间轴容器 */
.flow-track {
  position: relative;
  max-width: 960px;
  margin: 64px auto 0;
  padding: 8px 0 24px;
}

/* 中央链路竖线（紫→青 渐变） */
.flow-track::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #2563EB 0%, #06B6D4 100%);
  opacity: 0.35;
  border-radius: 4px;
}

/* 每一环节：三列栅格 [卡片][节点][卡片] */
.flow-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 120px 1fr;
  align-items: center;
  column-gap: 24px;
  margin-bottom: 48px;
}

.flow-stage:last-child {
  margin-bottom: 0;
}

/* 中心节点 */
.flow-node {
  grid-column: 2;
  grid-row: 1;
  justify-self: center;
  z-index: 2;
  width: 92px;
  height: 92px;
  border-radius: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
  color: #fff;
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.35);
  position: relative;
}

.flow-node::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 32px;
  border: 1.5px dashed rgba(37, 99, 235, 0.4);
  animation: flowPulse 3.2s ease-in-out infinite;
}

@keyframes flowPulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.08); opacity: 1; }
}

.flow-num {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  opacity: 0.85;
}

.flow-icon {
  font-size: 2rem;
  line-height: 1;
}

/* 内容插画：默认靠右列（卡片在左） */
.flow-art {
  grid-column: 3;
  grid-row: 1;
  justify-self: start;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 偶数环节：插画靠左列（卡片在右） */
.flow-stage:nth-child(even) .flow-art {
  grid-column: 1;
  justify-self: end;
}

.flow-art img {
  width: 100%;
  max-width: 320px;
  height: auto;
  border-radius: 28px;
  transition: var(--transition);
  filter: drop-shadow(0 18px 36px rgba(37, 99, 235, 0.18));
}

.flow-art img:hover {
  transform: translateY(-6px) scale(1.02);
  filter: drop-shadow(0 24px 48px rgba(37, 99, 235, 0.28));
}

/* 内容卡片：默认靠左列（右对齐） */
.flow-card {
  grid-column: 1;
  grid-row: 1;
  justify-self: end;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 22px;
  padding: 30px 32px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

/* 偶数环节：卡片靠右列 */
.flow-stage:nth-child(even) .flow-card {
  grid-column: 3;
  justify-self: start;
}

.flow-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.14);
  border-color: var(--border-glow);
}

.flow-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.16);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.flow-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.flow-card > p {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 18px;
}

.flow-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 18px;
}

.flow-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.flow-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
  font-weight: 900;
}

.flow-list li strong {
  color: var(--text-primary);
  font-weight: 800;
  margin-right: 8px;
}

.flow-list li strong::after {
  content: '';
}

/* 底部迷你步骤条 */
.flow-mini {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px dashed rgba(37, 99, 235, 0.18);
}

.flow-mini span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.14);
  padding: 5px 11px;
  border-radius: 999px;
  white-space: nowrap;
}

.flow-mini i {
  font-style: normal;
  color: #06B6D4;
  font-weight: 900;
  font-size: 0.85rem;
}

/* 四大创作场景 */
.scene-head {
  text-align: center;
  margin: 72px auto 32px;
}

.scene-head h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
}

.scene-head h3::after {
  content: '';
  display: block;
  width: 52px;
  height: 4px;
  margin: 14px auto 0;
  border-radius: 4px;
  background: linear-gradient(90deg, #2563EB, #06B6D4);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.scene-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.scene-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.16);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.scene-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(37, 99, 235, 0.16);
}

.scene-card h4 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.scene-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 响应式：≤900px 单列堆叠，节点居中 */
@media (max-width: 900px) {
  .flow-track::before {
    left: 46px;
    transform: none;
  }

  .flow-stage {
    grid-template-columns: 46px 1fr;
    column-gap: 20px;
    align-items: start;
  }

  .flow-node {
    grid-column: 1;
    width: 46px;
    height: 46px;
    border-radius: 14px;
  }

  .flow-node::after {
    inset: -4px;
    border-radius: 18px;
  }

  .flow-num {
    font-size: 0.6rem;
  }

  .flow-icon {
    font-size: 1.1rem;
  }

  .flow-card,
  .flow-stage:nth-child(even) .flow-card {
    grid-column: 2;
    grid-row: 2;
    justify-self: stretch;
    padding: 22px 20px;
  }

  /* 移动端：插画置于卡片上方 */
  .flow-art,
  .flow-stage:nth-child(even) .flow-art {
    grid-column: 2;
    grid-row: 1;
    justify-self: stretch;
  }

  .flow-art img {
    max-width: 240px;
    margin: 0 auto;
  }

  .scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .scene-grid {
    grid-template-columns: 1fr;
  }

  .flow-mini span {
    font-size: 0.72rem;
  }
}

/* ============================================
   ===== 关于我们页（about.html）=====
   ============================================ */
/* 数据实力 */
.about-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 56px auto 0;
}

.about-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px 16px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.about-stat:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 44px rgba(37, 99, 235, 0.16);
  border-color: var(--border-glow);
}

.about-stat-num {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 8px;
}

.about-stat-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* 产品矩阵 */
.about-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 48px auto 0;
}

.about-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  text-decoration: none;
}

.about-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.16);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.about-card-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(37, 99, 235, 0.16);
}

.about-card h3 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.about-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 响应式 */
@media (max-width: 900px) {
  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .about-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ===== 关于我们页（重构版）=====
   ============================================ */
/* 平台定位大段落 */
.ab-intro {
  max-width: 860px;
  margin: 8px auto 0;
  text-align: center;
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text-secondary);
}

/* 核心能力区标题 */
.ab-cap-title {
  margin-top: 64px;
}

/* 四大核心能力网格 */
.ab-cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 48px auto 0;
}

.ab-cap {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px 24px 26px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  overflow: hidden;
}

.ab-cap:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.16);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.ab-cap-num {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.85;
  margin-bottom: 14px;
}

.ab-cap-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(37, 99, 235, 0.16);
  margin-bottom: 16px;
}

.ab-cap h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.ab-cap p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* 发展历程 */
.ab-journey {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 48px auto 0;
  position: relative;
}

.ab-journey::before {
  content: '';
  position: absolute;
  top: 18px;
  left: 6%;
  right: 6%;
  height: 2px;
  background: linear-gradient(90deg, #2563EB, #06B6D4);
  opacity: 0.3;
}

.ab-journey-item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 48px 22px 24px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.ab-journey-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.16);
  border-color: var(--border-glow);
}

.ab-journey-phase {
  position: absolute;
  top: 0;
  left: 22px;
  transform: translateY(-50%);
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
}

.ab-journey-item h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.ab-journey-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* 经营理念 */
.ab-why {
  max-width: 860px;
  margin: 40px auto 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 36px 40px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(6px);
}

.ab-why p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 16px;
}

.ab-why p:last-child {
  margin-bottom: 0;
}

.ab-why p:first-child {
  color: var(--text-primary);
  font-weight: 600;
}

/* 服务对象 */
.ab-client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 48px auto 0;
}

.ab-client {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px 22px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.ab-client:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.16);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.ab-client-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(37, 99, 235, 0.16);
}

.ab-client h3 {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.ab-client p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 响应式 */
@media (max-width: 900px) {
  .ab-cap-grid,
  .ab-journey,
  .ab-client-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ab-journey::before {
    display: none;
  }

  .ab-why {
    padding: 28px 24px;
  }
}

@media (max-width: 560px) {
  .ab-cap-grid,
  .ab-journey,
  .ab-client-grid {
    grid-template-columns: 1fr;
  }

  .ab-intro {
    font-size: 0.95rem;
  }
}

/* 联系方式 */
.ab-contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 48px auto 0;
}

.ab-contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px 24px 26px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.ab-contact-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(37, 99, 235, 0.16);
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

.ab-contact-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.1));
  border: 1px solid rgba(37, 99, 235, 0.16);
}

.ab-contact-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.ab-contact-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

.ab-contact-card .btn-demo-center {
  margin-top: 0;
  padding: 10px 26px;
  font-size: 0.88rem;
}

@media (max-width: 900px) {
  .ab-contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .ab-contact-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ===== 登录弹窗（手机登录 + 微信登录）=====
   ============================================ */
.login-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.login-modal.open {
  opacity: 1;
  visibility: visible;
}

.login-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}

.login-modal-box {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: #FFFFFF;
  border-radius: 24px;
  padding: 36px 32px 32px;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.25);
  transform: translateY(20px) scale(0.98);
  transition: var(--transition);
  max-height: 90vh;
  overflow-y: auto;
}

.login-modal.open .login-modal-box {
  transform: translateY(0) scale(1);
}

.login-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(37, 99, 235, 0.08);
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}

.login-modal-close:hover {
  background: rgba(37, 99, 235, 0.15);
  color: var(--primary);
}

.login-modal-head {
  text-align: center;
  margin-bottom: 24px;
}

.login-modal-head h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.login-modal-head p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 面板 */
.login-panel {
  display: none;
}

.login-panel.active {
  display: block;
}

.login-field {
  display: flex;
  align-items: center;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 12px;
  background: #F4F5FA;
  margin-bottom: 12px;
  overflow: hidden;
}

.login-prefix {
  padding: 0 14px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  border-right: 1px solid rgba(37, 99, 235, 0.16);
  background: #ECEDF4;
  align-self: stretch;
  display: flex;
  align-items: center;
}

.login-input {
  flex: 1;
  width: 100%;
  border: none;
  background: transparent;
  padding: 13px 14px;
  font-size: 0.95rem;
  color: var(--text-primary);
  outline: none;
}

.login-input::placeholder {
  color: var(--text-muted);
}

.login-code-row {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

.login-code-row .login-input {
  flex: 1;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 12px;
  background: #F4F5FA;
}

.login-code-btn {
  white-space: nowrap;
  padding: 0 16px;
  border: 1px solid rgba(37, 99, 235, 0.25);
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.login-code-btn:hover {
  background: rgba(37, 99, 235, 0.15);
}

.login-code-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.login-agree {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.login-agree input {
  margin-top: 2px;
  accent-color: var(--primary);
}

.login-agree a {
  color: var(--primary);
  text-decoration: none;
}

.login-submit {
  width: 100%;
  padding: 13px 0;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  color: #fff;
  font-size: 0.98rem;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.3);
}

.login-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.4);
}

@media (max-width: 480px) {
  .login-modal-box {
    padding: 28px 22px 24px;
  }
}

/* ============================================
   ===== 定制开发页 Tab 切换式版式（左右结构）=====
   ============================================ */
.cdev-tabs-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: start;
  max-width: 1040px;
  margin: 48px auto 0;
}

/* 左侧：选项卡竖排 */
.cdev-tabs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 0;
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  position: sticky;
  top: 120px;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.cdev-tab {
  padding: 16px 20px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.98rem;
  font-weight: 700;
  border-radius: 14px;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cdev-tab:hover {
  border-color: var(--border-glow);
  background: rgba(37, 99, 235, 0.06);
  color: var(--primary);
  transform: translateX(3px);
}

.cdev-tab.active {
  background: linear-gradient(135deg, #3B82F6, #2BA8C7);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
}

/* 右侧：内容面板 */
.cdev-panels {
  min-width: 0;
}

/* 面板 */
.cdev-panel {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px 44px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(6px);
  animation: cdevFadeIn 0.35s ease;
}

.cdev-panel.active {
  display: block;
}

@keyframes cdevFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.cdev-panel-head {
  text-align: center;
  margin-bottom: 28px;
}

.cdev-num {
  display: block;
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #2563EB, #06B6D4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 18px;
}

.cdev-panel-head h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.cdev-panel-head p {
  max-width: 640px;
  margin: 0 auto;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* 卖点网格 */
.cdev-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}

.cdev-feature {
  background: #F7F7FB;
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: 14px;
  padding: 18px 20px;
  transition: var(--transition);
}

.cdev-feature:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.08);
}

.cdev-feature strong {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
}

.cdev-feature span {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 底部步骤条 */
.cdev-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding-top: 22px;
  border-top: 1px dashed rgba(37, 99, 235, 0.18);
}

.cdev-steps span {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.14);
  padding: 6px 13px;
  border-radius: 999px;
  white-space: nowrap;
}

.cdev-steps i {
  font-style: normal;
  color: #06B6D4;
  font-weight: 900;
  font-size: 0.9rem;
}

/* 第二行步骤条（业务系统定制 · 任务协作流程） */
.cdev-steps-sub {
  padding-top: 12px;
  border-top: none;
  margin-top: -10px;
}

/* 响应式 */
@media (max-width: 900px) {
  .cdev-tabs-wrap {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .cdev-tabs {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
    position: static;
    padding: 8px;
  }

  .cdev-tab {
    padding: 10px 16px;
    font-size: 0.85rem;
    text-align: center;
    flex: 1 1 auto;
    justify-content: center;
  }

  .cdev-tab:hover {
    transform: none;
  }

  .cdev-panel {
    padding: 28px 22px;
  }

  .cdev-features {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ===== 全站文字和谐优化（字号 · 色彩 · 行高）=====
   ============================================ */
/* 统一正文：更清晰、更轻松 */
.section-subtitle,
.hero-desc {
  color: var(--text-secondary);
  line-height: 1.85;
}

/* 卡片正文统一字号与行高 */
.cap-desc,
.flow-card > p,
.ab-why p {
  font-size: 0.97rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

/* 列表项：略微加大、行距更舒适 */
.cap-list li,
.flow-list li,
.dc-list li {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* 小卡片正文：避免过小，保持清晰 */
.scene-card p,
.about-card p,
.ab-cap p,
.ab-client p,
.ab-contact-card p,
.risk-adv-panel p,
.cdev-feature span {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* 卖点强标签：主色更沉稳，标签底色更柔和 */
.cap-list li strong,
.flow-list li strong {
  color: var(--primary);
  font-weight: 700;
}

/* 说明性小字：用 muted 色，统一字号 */
.ra-example,
.flow-mini span,
.about-stat-label {
  color: var(--text-muted);
}

/* 标题与正文层次更分明 */
.section-title,
.hero h1 {
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

/* 正文行距统一为宽松舒适值 */
p {
  text-wrap: pretty;
}

/* 页脚与次级说明文字：柔和过渡 */
.footer p,
.footer-bottom {
  color: var(--text-muted);
}

/* ============================================
   ===== 深色区块文字覆盖（CTA / Footer）=====
   ============================================ */
/* CTA 区（浅色主题）：文字用次级色保证可读与和谐 */
.cta-section .cta-box p {
  color: var(--text-secondary);
}

/* Footer（浅色主题）：层级清晰 */
.footer {
  background: #EEF0F6;
}

.footer h5 {
  color: var(--text-primary);
}

.footer-brand p,
.footer a {
  color: var(--text-muted);
}

.footer a:hover {
  color: var(--primary);
}

.footer-bottom {
  color: var(--text-muted);
}

/* ============================================
   ===== 标题字号优化 + 整体配色柔和化 =====
   ============================================ */
/* 段落/区块标题：字号统一调低，层级更协调 */
.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
}

.hero h1 {
  font-size: clamp(1.85rem, 3.6vw, 2.75rem);
}

.search-title h1 {
  font-size: clamp(1.85rem, 3.6vw, 2.75rem);
}

.cta-box h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
}

.cap-head h3,
.flow-card h3 {
  font-size: 1.22rem;
}

.ab-cap h3,
.about-card h3 {
  font-size: 1.02rem;
}

.ab-client h3,
.scene-card h4,
.dc-head h4 {
  font-size: 0.98rem;
}

.cdev-panel-head h3 {
  font-size: 1.3rem;
}

.risk-adv-panel h3 {
  font-size: 1.12rem;
}

/* 整体配色柔和化：降低元素间对比度，视觉更轻松统一 */
:root {
  --primary: #2563EB;
  --primary-dark: #1E40AF;
  --secondary: #0E7490;
  --accent: #B45309;
  --gradient-1: linear-gradient(135deg, #3B82F6 0%, #2BA8C7 100%);
  --gradient-2: linear-gradient(135deg, #2563EB 0%, #3B82F6 55%, #0E7490 100%);
  --gradient-3: linear-gradient(135deg, #0E7490 0%, #2BA8C7 100%);
  --text-primary: #1F2A44;
  --text-secondary: #3E4C63;
  --text-muted: #64748B;
  --bg-dark: #F6F9FD;
  --border-color: rgba(37, 99, 235, 0.12);
  --border-glow: rgba(37, 99, 235, 0.28);
  --shadow-card: 0 10px 32px rgba(44, 58, 85, 0.07);
}

/* 高对比硬编码色同步柔和 */
.hv-n-label,
.hv-n-dot {
  filter: saturate(0.9);
}

/* 标题渐变统一为品牌紫→青的柔和过渡 */
.section-title,
.feature-content h3,
.cta-box h2,
.data-card:hover .dc-head h4,
.market-section .data-card:hover .dc-head h4,
.dp-content h4 {
  background: linear-gradient(135deg, #2C3A55 0%, #2563EB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title-sub {
  background: linear-gradient(135deg, #0E7490 0%, #2563EB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 数据卡片强调色柔和统一 */
.dc-hl,
.vf-price {
  background: linear-gradient(135deg, #2563EB 0%, #0E7490 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 搜索框、按钮等高频元素对比度适度降低 */
.hs-box {
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: 0 8px 26px rgba(37, 99, 235, 0.1);
}

.nav-btn {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: 0 3px 12px rgba(37, 99, 235, 0.12);
}

.btn-primary,
.btn-secondary {
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.16);
}

/* ============================================
   ===== 登录弹窗色彩柔和化（与全站一致）=====
   ============================================ */
/* 弹窗外壳：阴影更柔，遮罩更轻 */
.login-modal-overlay {
  background: rgba(44, 58, 85, 0.45);
  backdrop-filter: blur(4px);
}

.login-modal-box {
  background: #FFFFFF;
  box-shadow: 0 24px 64px rgba(44, 58, 85, 0.16);
}

/* 标题：柔和渐变 + 统一字号 */
.login-modal-head h3 {
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(135deg, #2C3A55 0%, #2563EB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-modal-head p {
  color: var(--text-secondary);
}

/* 输入框：对比度适度、边框更柔和 */
.login-field {
  border-color: rgba(37, 99, 235, 0.14);
  background: #F5F6FA;
}

.login-prefix {
  color: var(--text-secondary);
  border-right-color: rgba(37, 99, 235, 0.14);
  background: #ECEDF3;
}

.login-code-row .login-input {
  border-color: rgba(37, 99, 235, 0.14);
  background: #F5F6FA;
}

.login-code-btn {
  border-color: rgba(37, 99, 235, 0.2);
  background: rgba(37, 99, 235, 0.06);
  color: var(--primary);
}

.login-code-btn:hover {
  background: rgba(37, 99, 235, 0.12);
}

/* 协议与说明文字：柔和层次 */
.login-agree {
  color: var(--text-muted);
}

.login-agree a {
  color: var(--primary);
}

/* 主提交按钮：柔和渐变 + 轻阴影 */
.login-submit {
  background: linear-gradient(135deg, #3B82F6, #2BA8C7);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.16);
}

.login-submit:hover {
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
}

/* ============================================
   ===== 擅长的技术（customization.html）=====
   ============================================ */
/* 能力重点 · 八大核心技术（优化版） */
.tech-key-caption {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 28px;
  background: linear-gradient(135deg, #0E7490, #2563EB);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tech-key-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.tech-key {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 30px 16px 26px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  overflow: hidden;
}

.tech-key::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #2563EB, #0E7490);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tech-key:hover::before {
  opacity: 1;
}

.tech-key:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 42px rgba(37, 99, 235, 0.14);
  border-color: var(--border-glow);
}

.tech-key-num {
  position: absolute;
  top: 14px;
  left: 16px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #2563EB, #0E7490);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.75;
}

.tech-key-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(14, 116, 144, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.16);
  margin-bottom: 14px;
}

.tech-key h4 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.45;
}

@media (max-width: 900px) {
  .tech-key-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .tech-key-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ===== 文字渐变色统一改为纯色（品牌紫）=====
   ============================================ */
.hero h1 .gradient-text,
.hero h1 .highlight,
.hero-tagline .gradient-text,
.hero-tagline .highlight,
.hv-core-label,
.section-label,
.section-title,
.section-title-sub,
.feature-content h3,
.cta-box h2,
.dp-content h4,
.data-card .dc-head h4,
.data-card:hover .dc-head h4,
.market-section .data-card:hover .dc-head h4,
.dc-hl,
.vf-price,
.dc-num,
.market-section .dc-num {}

/* ============================================
   ===== 十大定制开发方案（customization.html）=====
   ============================================ */
.sol-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  max-width: 1080px;
  margin: 48px auto 0;
}

.sol-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px 26px 24px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
}

.sol-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.sol-card:hover::before {
  transform: scaleX(1);
}

.sol-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 18px 42px rgba(37, 99, 235, 0.14);
}

.sol-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.sol-num {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #2563EB, #0E7490);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.8;
}

.sol-icon {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(14, 116, 144, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.16);
  transition: var(--transition);
}

.sol-card:hover .sol-icon {
  transform: scale(1.08);
}

.sol-card h3 {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.4;
}

.sol-card p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.sol-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.sol-tags span {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.14);
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

@media (max-width: 860px) {
  .sol-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ===== 定制开发页配色规划（文字暖色 · 按钮紫）=====
   仅作用于 customization.html（body.page-custom）
   配色原则：
   ① 标题 / 编号 / 卖点文字为暖色（橙 / 琥珀）——用 color 着色，
      background 声明一律不使用蓝色；
   ② 标签、步骤条、图标底等小元件为中性浅灰，无彩色背景；
   ③ 按钮（导航 / Tab / CTA / 登录）保持品牌紫色不变；
   ④ 本页任何类的 background 均不含蓝色。
   ============================================ */
/* ===== 字体颜色分层（暖色系，提高清晰度与对比度）===== */
/* 层级 1 · 主标题（Hero H1 / 区块 H2 / CTA H2）：亮暖橙 */
.page-custom .search-title h1,
.page-custom .section-title,
.page-custom .cta-box h2 {
  color: #F97316;
  background: none;
  -webkit-text-fill-color: currentColor;
}

/* 层级 1b · 卡片 / 面板 / 技术项标题：暖橙（小字保持可读） */
.page-custom .cdev-panel-head h3,
.page-custom .sol-card h3,
.page-custom .tech-key h4 {
  color: #EA580C;
}

/* 层级 2 · 区块标签 / 副标题：暖琥珀 */
.page-custom .section-label,
.page-custom .section-title-sub {
  color: #D97706;
  background: none;
  -webkit-text-fill-color: currentColor;
}

/* 层级 3 · 编号 / 数据数字：暖橙强调 */
.page-custom .about-stat-num,
.page-custom .cdev-num,
.page-custom .sol-num,
.page-custom .tech-key-num,
.page-custom .tech-key-caption {
  color: #EA580C;
  background: none;
  -webkit-text-fill-color: currentColor;
}

/* 层级 4 · 卖点文字：暖琥珀（小字更清晰） */
.page-custom .cdev-feature strong {
  color: #D97706;
}

/* 层级 5 · 步骤条 / 方案标签：深琥珀字 + 浅灰底（清晰不刺眼） */
.page-custom .cdev-steps span,
.page-custom .sol-tags span {
  color: #B45309;
  background: #F1F5F9;
  border-color: #E2E8F0;
}

/* 图标底：中性浅灰（本页任何背景均不使用蓝色） */
.page-custom .sol-icon,
.page-custom .tech-key-icon {
  background: #F1F5F9;
  border-color: #E2E8F0;
}

/* ===== 暖色主题统一：按钮 / 强调 / 边框 / 阴影（与暖色文字搭配）===== */
/* 注：顶部导航（Logo / 菜单 / 登录 / 免费试用）保持全局样式，不做暖色覆盖 */
/* CTA 按钮 */
.page-custom .btn-primary {
  background: linear-gradient(135deg, #F97316, #EA580C);
  box-shadow: 0 6px 18px rgba(249, 115, 22, 0.2);
}
.page-custom .btn-primary:hover {
  box-shadow: 0 12px 40px rgba(249, 115, 22, 0.35);
}
.page-custom .btn-secondary {
  border-color: rgba(249, 115, 22, 0.4);
  color: #EA580C;
}
.page-custom .btn-secondary:hover {
  border-color: #EA580C;
  background: rgba(249, 115, 22, 0.1);
}

/* Tab 切换按钮（hover + 激活） */
.page-custom .cdev-tab:hover {
  border-color: rgba(249, 115, 22, 0.3);
  background: rgba(249, 115, 22, 0.06);
  color: #EA580C;
}
.page-custom .cdev-tab.active {
  background: linear-gradient(135deg, #F97316, #EA580C);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.22);
}

/* 卡片：顶线 / hover / 边框（方案、技术、卖点、统计） */
.page-custom .sol-card {
  border-color: rgba(249, 115, 22, 0.16);
}
.page-custom .sol-card::before {
  background: linear-gradient(90deg, #F97316, #EA580C);
}
.page-custom .sol-card:hover {
  border-color: rgba(249, 115, 22, 0.3);
  box-shadow: 0 18px 42px rgba(249, 115, 22, 0.14);
}
.page-custom .tech-key {
  border-color: rgba(249, 115, 22, 0.16);
}
.page-custom .tech-key::before {
  background: linear-gradient(90deg, #F97316, #EA580C);
}
.page-custom .tech-key:hover {
  border-color: rgba(249, 115, 22, 0.3);
  box-shadow: 0 18px 42px rgba(249, 115, 22, 0.14);
}
.page-custom .cdev-feature {
  border-color: rgba(249, 115, 22, 0.14);
}
.page-custom .cdev-feature:hover {
  border-color: rgba(249, 115, 22, 0.3);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.1);
}
.page-custom .about-stat {
  border-color: rgba(249, 115, 22, 0.16);
}
.page-custom .about-stat:hover {
  border-color: rgba(249, 115, 22, 0.3);
  box-shadow: 0 18px 44px rgba(249, 115, 22, 0.14);
}
.page-custom .cdev-panel {
  border-color: rgba(249, 115, 22, 0.14);
}

/* 图标底 / 步骤箭头：暖橙 tint 与文字呼应 */
.page-custom .sol-icon,
.page-custom .tech-key-icon {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.12), rgba(234, 88, 12, 0.08));
  border-color: rgba(249, 115, 22, 0.2);
}
.page-custom .cdev-steps i {
  color: #EA580C;
}

/* 页脚链接 hover */
.page-custom .footer a:hover {
  color: #EA580C;
}

/* 登录弹窗（本页同样出现） */
.page-custom .login-submit {
  background: linear-gradient(135deg, #F97316, #EA580C);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.2);
}
.page-custom .login-submit:hover {
  box-shadow: 0 10px 24px rgba(249, 115, 22, 0.26);
}
.page-custom .login-code-btn {
  border-color: rgba(249, 115, 22, 0.2);
  background: rgba(249, 115, 22, 0.06);
  color: #EA580C;
}
.page-custom .login-modal-head h3 {
  color: #EA580C;
  background: none;
  -webkit-text-fill-color: currentColor;
}
.login-modal-head h3 {
  background: #2563EB;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   ===== 顶部导航优化（更专业、大气、协调）=====
   ============================================ */
/* 导航栏：毛玻璃 + 柔和阴影，提升层次感 */
.navbar {
  background: #FFFFFF;
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid rgba(37, 99, 235, 0.1);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 2px 20px rgba(31, 42, 68, 0.05);
  padding: 15px 0;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
  box-shadow: 0 6px 28px rgba(31, 42, 68, 0.08);
  padding: 9px 0;
}

/* Logo 图标更精致，hover 微动效 */
.navbar .logo-icon {
  border-radius: 14px;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.26), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.navbar .logo:hover .logo-icon {
  transform: translateY(-1px) scale(1.04);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.34);
}

.navbar .logo-text {
  letter-spacing: 0.5px;
}

/* 菜单项：间距协调、点击区更大、hover 更专业
   桌面端主菜单间距 40px，让 商标检索·AI分析 / 私域拓客·自动化 / 定制开发·API / 服务与价格 四个主链接疏密得当 */
.nav-links {
  gap: 40px;
}

.nav-links a {
  padding: 7px 2px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.nav-links a:hover {
  color: #2563EB;
}

.nav-links a::after {
  bottom: 2px;
  height: 2.5px;
  border-radius: 3px;
  background: linear-gradient(90deg, #2563EB, #06B6D4);
}

/* 登录链接 hover 变品牌紫 */
.nav-login:hover {
  color: #2563EB;
}

/* 免费试用：渐变紫主按钮，更大气突出 */
.nav-btn {
  background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
  border: none;
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
  padding: 13px 42px;
  min-width: 150px;
  text-align: center;
}

/* 覆盖 .nav-links a 的 padding，确保免费试用按钮内边距与宽度生效 */
.nav-links .nav-btn {
  color: #FFFFFF;
  padding: 13px 42px;
  min-width: 150px;
  text-align: center;
}

/* 免费试用：去掉文字悬停效果（hover 不变色、无下划线动画） */
.nav-links .nav-btn:hover {
  color: #FFFFFF;
}

.nav-links .nav-btn::after {
  display: none;
}

/* 免费试用按钮：已去除悬浮效果
.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(37, 99, 235, 0.42);
  background: linear-gradient(135deg, #3B82F6 0%, #1D4ED8 100%);
}
*/

/* 移动端：免费试用按钮适当收紧，避免过宽 */
@media (max-width: 768px) {
  .nav-links .nav-btn {
    padding: 10px 26px;
    min-width: 0;
  }
}

/* ============================================
   ===== 顶部 Logo 副标题：知产全链路解决方案（2026-09-01）=====
   ============================================ */
.logo-sub {
  display: inline-block;
  font-size: 0.6em;
  font-weight: 600;
  color: #64748B;
  margin-left: 10px;
  padding-left: 10px;
  border-left: 1px solid rgba(37, 99, 235, 0.18);
  letter-spacing: 0.5px;
  white-space: nowrap;
  vertical-align: middle;
}
@media (max-width: 992px) {
  .logo-sub {
    display: none;
  }
}

/* ============================================
   ===== 顶部菜单字号统一为 14px（桌面端）=====
   ============================================ */
@media (min-width: 769px) {
  .nav-links a,
  .nav-links .nav-btn {
    font-size: 14px;
  }
}

/* ============================================
   ===== 顶部导航 · 精致化（2026-09-01）=====
   ============================================ */
/* 菜单项：细腻过渡；主菜单 hover 微上浮 + 品牌蓝（免费试用按钮保持静态） */
.nav-links a {
  transition: color 0.25s ease, transform 0.25s ease;
}
.nav-links a:not(.nav-btn):hover {
  transform: translateY(-1px);
  color: #2563EB;
}

/* 当前页激活高亮：品牌蓝 + 渐变下划线 */
.nav-links a.active {
  color: #2563EB;
}
.nav-links a.active::after {
  width: 100%;
}

/* 登录区：与主菜单分组，左侧细分隔线（桌面端） */
@media (min-width: 993px) {
  .nav-links .nav-login {
    margin-left: 4px;
    padding-left: 24px;
    border-left: 1px solid rgba(37, 99, 235, 0.15);
    color: #64748B;
  }
  .nav-links .nav-login:hover {
    color: #2563EB;
    border-left-color: rgba(37, 99, 235, 0.15);
  }
}

/* ============================================
   ===== 输入框提示（placeholder）字号统一 14px =====
   ============================================ */
.hs-box input::placeholder,
.hst-input::placeholder,
.demo-input::placeholder,
.login-input::placeholder,
.vq-input::placeholder {
  font-size: 14px;
}

/* ============================================
   ===== hero 查续展 下拉文字字号统一 12px（2026-08-13）=====
   ============================================ */
.hs-renewal .hsf-select {
  font-size: 12px;
}
.hs-renewal .hsf-select option {
  font-size: 12px;
}

/* ============================================
   ===== 私域拓客页配色（tuoke-automation.html）=====
   仅作用于 tuoke-automation.html（body.page-tuoke）
   主体采用绿色（增长 · 拓客）主题，与其他页面区分；
   顶部导航与页脚保持全局样式不变。
   ============================================ */
/* 标题 / 标签 / 副标题：绿色系（color 着色，无绿色背景块） */
.page-tuoke .search-title h1,
.page-tuoke .section-title,
.page-tuoke .cta-box h2 {
  color: #16A34A;
  background: none;
  -webkit-text-fill-color: currentColor;
}
.page-tuoke .section-label,
.page-tuoke .section-title-sub {
  color: #059669;
  background: none;
  -webkit-text-fill-color: currentColor;
}
.page-tuoke .cap-head h3 {
  color: #15803D;
}
.page-tuoke .cap-num {
  color: #16A34A;
  background: none;
  -webkit-text-fill-color: currentColor;
}

/* 卖点标签 / 勾选 */
.page-tuoke .cap-list li strong {
  color: #15803D;
  background: rgba(22, 163, 74, 0.1);
}
.page-tuoke .cap-list li::before {
  background: rgba(22, 163, 74, 0.12);
  color: #16A34A;
}

/* 能力卡片 / 图标 / 可视化区 */
.page-tuoke .cap-block {
  border-color: rgba(22, 163, 74, 0.16);
  box-shadow: 0 12px 40px rgba(22, 163, 74, 0.08);
}
.page-tuoke .cap-block:hover {
  box-shadow: 0 18px 52px rgba(22, 163, 74, 0.14);
}
.page-tuoke .cap-icon {
  background: linear-gradient(135deg, rgba(22, 163, 74, 0.12), rgba(5, 150, 105, 0.1));
  border-color: rgba(22, 163, 74, 0.2);
}
.page-tuoke .cap-visual {
  background: linear-gradient(145deg, rgba(22, 163, 74, 0.06), rgba(5, 150, 105, 0.05));
  border-color: rgba(22, 163, 74, 0.25);
}

/* 步骤卡 / 箭头 */
.page-tuoke .cv-step {
  border-color: rgba(22, 163, 74, 0.2);
  box-shadow: 0 6px 20px rgba(22, 163, 74, 0.1);
}
.page-tuoke .cv-step:hover {
  box-shadow: 0 10px 28px rgba(22, 163, 74, 0.16);
}
.page-tuoke .cv-arrow {
  color: #16A34A;
}

/* CTA / 预约沟通按钮：绿色 */
.page-tuoke .btn-primary {
  background: linear-gradient(135deg, #22C55E, #16A34A);
  box-shadow: 0 6px 18px rgba(22, 163, 74, 0.22);
}
.page-tuoke .btn-primary:hover {
  box-shadow: 0 12px 40px rgba(22, 163, 74, 0.38);
}
.page-tuoke .btn-secondary {
  border-color: rgba(22, 163, 74, 0.4);
  color: #15803D;
}
.page-tuoke .btn-secondary:hover {
  border-color: #16A34A;
  background: rgba(22, 163, 74, 0.1);
}

/* 预约弹窗提交按钮：绿色 */
.page-tuoke .demo-submit {
  background: linear-gradient(135deg, #22C55E, #16A34A);
  box-shadow: 0 6px 18px rgba(22, 163, 74, 0.2);
}
.page-tuoke .demo-submit:hover {
  box-shadow: 0 10px 30px rgba(22, 163, 74, 0.3);
}

/* ============================================
   ===== 主流屏幕适配优化（2026-09-01）=====
   ============================================ */

/* 平板及以下（≤992px）：顶部导航切换为汉堡菜单，
   避免完整导航在 769–992px 区间被压缩导致文字竖排 */
@media (max-width: 992px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 36px;
    z-index: 999;
    overflow-y: auto;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.3rem;
    color: #1F2A44;
    white-space: nowrap;
  }

  .nav-links .nav-ico {
    width: 21px;
    height: 21px;
  }

  .nav-links .nav-btn {
    font-size: 1.1rem;
    padding: 14px 40px;
  }

  /* 占位元素在覆盖层菜单中不参与布局 */
  .nav-li-spacer {
    display: none;
  }

  /* 显示汉堡按钮 */
  .mobile-toggle {
    display: flex;
    z-index: 1001;
    position: relative;
  }
}

/* 紧凑桌面（993–1279px）：保留完整导航，收紧字号/间距/按钮保证不折行 */
@media (min-width: 993px) and (max-width: 1279px) {
  .navbar .container {
    gap: 20px;
  }

  .navbar .logo {
    font-size: 1.2rem;
  }

  .navbar .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }

  .nav-links {
    gap: 24px;
  }

  .nav-links a {
    font-size: 13px;
    padding: 7px 1px;
    white-space: nowrap;
  }

  .nav-links .nav-ico {
    width: 15px;
    height: 15px;
  }

  .nav-links .nav-btn {
    min-width: 0;
    padding: 10px 20px;
    font-size: 13px;
  }

  .nav-login {
    font-size: 13px;
  }
}

/* 中宽桌面（1280–1439px）：标准字号，间距收紧一档 */
@media (min-width: 1280px) and (max-width: 1439px) {
  .nav-links {
    gap: 36px;
  }
}

/* 标准桌面（≥1440px）：标准间距 */
@media (min-width: 1440px) {
  .nav-links {
    gap: 40px;
  }
}

/* ============================================
   ===== 首页文字样式精致化（2026-09-01）=====
   只调整文字（字号 / 字距 / 行高 / 颜色层次），
   不改布局与组件；集中管理，可整体撤销
   ============================================ */

/* —— Hero 主标题（仅首页 .hero-content h1）：去掉渐变，改沉稳深蓝纯色 —— */
.hero .hero-content h1 > .gradient-text {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
}

.hero .hero-content h1 {
  letter-spacing: 0.01em;
  animation: none; /* 原 fadeInUp 改为逐字浮现动效（.ht-anim 由 JS 添加） */
}

/* —— Hero 主标题逐字浮现动效 —— */
.hero .hero-content h1.ht-anim .ht-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.4em);
  animation: htReveal 0.55s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: calc(var(--i, 0) * 0.03s);
  will-change: transform, opacity;
}

@keyframes htReveal {
  from {
    opacity: 0;
    transform: translateY(0.4em);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero .hero-content h1.ht-anim .ht-char {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

/* —— Hero 副标题：沉稳主色，重点词用品牌紫纯色 —— */
.hero-tagline {
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.7;
}

/* 注：需比基础 `.hero h1 .gradient-text`（后代选择器）特异性更高，
   否则 tagline 内嵌套的强调词会继承主标题渐变 */
.hero .hero-content h1 .hero-tagline .gradient-text,
.hero .hero-content h1 .hero-tagline .highlight {
  font-weight: 700;
  color: #2563EB;
  background: none;
  -webkit-text-fill-color: currentColor;
}

/* —— Hero 描述：更舒展 —— */
.hero-desc {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 560px;
}

/* —— 区块眉标：更紧凑、字距更克制 —— */
.section-label {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  color: #2563EB;
  background: none;
  -webkit-text-fill-color: currentColor;
}

/* —— 区块主标题：沉稳深蓝纯色，层次干净 —— */
.section-title {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

/* —— 区块副标题行：品牌紫纯色 —— */
.section-title-sub {
  color: #2563EB;
  background: none;
  -webkit-text-fill-color: currentColor;
  letter-spacing: 0.6px;
  margin-top: 10px;
  font-weight: 600;
}

/* —— 区块说明文字 —— */
.section-subtitle {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* —— 数据面板标题 / 描述 / 列表 —— */
.dp-content h4 {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
  font-size: 1.3rem;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.dp-desc {
  font-size: 0.87rem;
  line-height: 2.05;
  color: #64748B;
  margin-bottom: 24px;
}

.dp-list {
  gap: 15px;
}

.dp-list li {
  font-size: 0.85rem;
  line-height: 1.95;
  color: #64748B;
}

/* —— 私域卡片标题 —— */
.dc-head h4 {
  font-size: 1.02rem;
  color: var(--text-primary);
}

/* —— CTA —— */
.cta-box h2 {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
  line-height: 1.3;
}

.cta-box p {
  font-size: 1.05rem;
  line-height: 1.85;
}

/* —— 页脚文字 —— */
.footer h5 {
  font-size: 0.95rem;
  letter-spacing: 0.05em;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.85;
}

/* ============================================
   ===== 一级页面字体颜色统一（按首页，2026-09-01）=====
   将各一级页面文字颜色统一为首页配色：
   主标题/卡片标题 → 深蓝 #1F2A44，点缀（眉标/副标题/编号/卖点）
   → 品牌紫 #2563EB，正文 → 灰。仅改字体颜色，组件（按钮底/
   卡片边框/图标底/阴影）保持各自主题；描边按钮边框同步品牌紫。
   ============================================ */

/* 独立页首屏 H1：去渐变，同首页深蓝纯色 */
.search-title h1 {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
}

/* —— customization.html（暖橙 → 首页配色）—— */
.page-custom .search-title h1,
.page-custom .section-title,
.page-custom .cta-box h2,
.page-custom .cdev-panel-head h3,
.page-custom .sol-card h3,
.page-custom .tech-key h4 {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
}

.page-custom .section-label,
.page-custom .section-title-sub,
.page-custom .about-stat-num,
.page-custom .cdev-num,
.page-custom .sol-num,
.page-custom .tech-key-num,
.page-custom .tech-key-caption,
.page-custom .cdev-feature strong,
.page-custom .cdev-steps span,
.page-custom .sol-tags span,
.page-custom .cdev-steps i,
.page-custom .btn-secondary,
.page-custom .cdev-tab:hover,
.page-custom .footer a:hover,
.page-custom .login-code-btn,
.page-custom .login-modal-head h3 {
  color: #2563EB;
}

.page-custom .cdev-steps span,
.page-custom .sol-tags span {
  border-color: #E2E8F0;
}

.page-custom .btn-secondary {
  border-color: rgba(37, 99, 235, 0.4);
}
.page-custom .btn-secondary:hover {
  border-color: #2563EB;
  background: rgba(37, 99, 235, 0.1);
}

/* —— tuoke-automation.html（绿色 → 首页配色）—— */
.page-tuoke .search-title h1,
.page-tuoke .section-title,
.page-tuoke .cta-box h2,
.page-tuoke .cap-head h3 {
  color: var(--text-primary);
  background: none;
  -webkit-text-fill-color: currentColor;
}

.page-tuoke .section-label,
.page-tuoke .section-title-sub,
.page-tuoke .cap-num,
.page-tuoke .cap-list li strong,
.page-tuoke .cap-list li::before,
.page-tuoke .cv-arrow,
.page-tuoke .btn-secondary {
  color: #2563EB;
}

.page-tuoke .cap-list li strong {
  background: rgba(37, 99, 235, 0.1);
}
.page-tuoke .cap-list li::before {
  background: rgba(37, 99, 235, 0.12);
}

.page-tuoke .btn-secondary {
  border-color: rgba(37, 99, 235, 0.4);
}
.page-tuoke .btn-secondary:hover {
  border-color: #2563EB;
  background: rgba(37, 99, 235, 0.1);
}

/* ============================================
   ===== 合并入数据选项卡的整宽内容面板（2026-09-01）=====
   大数据拓客 / 私域经营+业务系统 面板为整宽单列
   ============================================ */
.data-panel.dp-wide {
  grid-template-columns: 1fr;
  align-items: start;
}
.data-panel.dp-wide .dp-content {
  max-width: 760px;
}

/* ============================================
   ===== 数据选项卡：商标查询 × 近似分析 合并双栏（2026-09-01）=====
   ============================================ */
.dp-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  width: 100%;
}
.dp-split-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.dp-split-col + .dp-split-col {
  border-left: 1px dashed rgba(37, 99, 235, 0.18);
  padding-left: 48px;
}
.dp-split-col .dp-list {
  margin-bottom: 26px;
}
.dp-split-col .viz-query,
.dp-split-col .viz-risk2 {
  margin-top: auto;
  padding-top: 6px;
}
.dp-split-col .viz-head {
  margin-bottom: 14px;
}
/* 三栏合并面板（续展 × 科企 × 拓客） */
.dp-split--trio {
  grid-template-columns: 1fr 1fr 1fr;
}
@media (max-width: 992px) {
  .dp-split {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .dp-split--trio {
    grid-template-columns: 1fr;
  }
  .dp-split-col + .dp-split-col {
    border-left: none;
    padding-left: 0;
    border-top: 1px dashed rgba(37, 99, 235, 0.18);
    padding-top: 30px;
    margin-top: 4px;
  }
}

/* ============================================
   ===== 数据选项卡可视化：拓客链路 / 业务系统矩阵（2026-09-01）=====
   ============================================ */
/* 大数据拓客 · 拓客转化链路 */
.viz-flow {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.viz-flow .viz-head {
  margin-bottom: 12px;
}
.vf-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.12);
}
.vf-step b {
  color: #2563EB;
  font-size: 0.9rem;
  font-weight: 700;
  white-space: nowrap;
}
.vf-step span {
  color: var(--text-secondary);
  font-size: 0.82rem;
}
.vf-arrow {
  text-align: center;
  color: #93C5FD;
  line-height: 1;
  font-size: 0.9rem;
}

/* 私域经营+业务系统 · 业务系统矩阵（两列，充满面板） */
.viz-sys {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.viz-sys .viz-head {
  grid-column: 1 / -1;
  margin-bottom: 2px;
}
.vs-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.12);
}
.vs-row .vs-ico {
  font-size: 1.15rem;
  flex-shrink: 0;
}
.vs-row .vs-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.vs-row .vs-info b {
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 700;
}
.vs-row .vs-info span {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.5;
}
/* 功能模块矩阵：末项全宽（奇数项补齐） */
.vs-row--full {
  grid-column: 1 / -1;
}

/* ============================================
   ===== 综合知产服务小程序 · 界面预览墙（2026-09-01）=====
   ============================================ */
.app-shots-title {
  margin-bottom: 14px;
}
.app-shots-block {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px dashed rgba(37, 99, 235, 0.18);
}
.app-shots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  justify-items: center;
  align-items: start;
  width: 100%;
}
.app-shot {
  width: 100%;
  max-width: 240px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 8px 8px 4px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.app-shot:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.14);
}
.app-shot img {
  width: 100%;
  height: auto;
  border-radius: 9px;
  display: block;
  border: 1px solid rgba(37, 99, 235, 0.08);
}
.app-shot span {
  display: block;
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 7px 0 5px;
  line-height: 1.4;
}
@media (max-width: 560px) {
  .app-shots {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}
/* ============================================
   ===== 大数据拓客 · AI 短视频矩阵获客（2026-09-01）=====
   ============================================ */
.viz-short {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px dashed rgba(37, 99, 235, 0.18);
}
.viz-short .viz-head {
  margin-bottom: 12px;
}
.vs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.vs-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.04);
  border: 1px solid rgba(37, 99, 235, 0.1);
  transition: var(--transition);
}
.vs-cell:hover {
  background: rgba(37, 99, 235, 0.07);
  border-color: rgba(37, 99, 235, 0.22);
  transform: translateY(-2px);
}
.vs-cell .vs-ico {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.08);
  font-size: 1.05rem;
  flex-shrink: 0;
}
.vs-cell b {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}
@media (max-width: 560px) {
  .vs-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   ===== AI+ 大数据赋能 · 卡片与文字精致化（2026-09-01）=====
   ============================================ */
/* 面板卡片：更轻薄、更精致 */
.data-panel {
  padding: 34px 40px;
  border-radius: 18px;
  box-shadow: 0 10px 34px rgba(15, 23, 42, 0.06);
}
.data-panel::before {
  height: 2px;
}

/* 标题：更紧凑清晰 */
.dp-content h4,
.dp-split-col h4 {
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: 14px;
}

/* 描述：层级更清晰 */
.dp-desc {
  font-size: 0.85rem;
  line-height: 1.95;
  color: #64748B;
  margin-bottom: 20px;
}

/* 列表 */
.dp-list {
  gap: 13px;
}
.dp-list li {
  font-size: 0.84rem;
  line-height: 1.85;
  color: #475569;
}
.dp-list li::before {
  width: 15px;
  height: 15px;
  top: 2px;
  font-size: 0.58rem;
  background: rgba(37, 99, 235, 0.12);
  color: #2563EB;
}

/* 分栏 */
.dp-split-col + .dp-split-col {
  padding-left: 42px;
}

/* 选项卡：更紧凑 */
.data-tab {
  padding: 11px 20px;
  font-size: 0.9rem;
}
.dt-num {
  font-size: 0.7rem;
  padding: 2px 7px;
}

/* 功能模块矩阵：卡片更精致 */
.viz-sys {
  gap: 10px;
}
.vs-row {
  padding: 13px 15px;
  border-radius: 13px;
  background: rgba(37, 99, 235, 0.04);
  border: 1px solid rgba(37, 99, 235, 0.1);
  transition: var(--transition);
}
.vs-row:hover {
  background: rgba(37, 99, 235, 0.07);
  border-color: rgba(37, 99, 235, 0.22);
  transform: translateY(-2px);
}
.vs-row .vs-ico {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.08);
  font-size: 1.05rem;
  flex-shrink: 0;
}
.vs-row .vs-info b {
  font-size: 0.87rem;
}
.vs-row .vs-info span {
  color: #94A3B8;
}

/* 拓客转化链路：卡片更精致 */
.vf-step {
  padding: 11px 14px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.04);
  border: 1px solid rgba(37, 99, 235, 0.1);
  transition: var(--transition);
}
.vf-step:hover {
  background: rgba(37, 99, 235, 0.07);
  border-color: rgba(37, 99, 235, 0.22);
}

/* 移动端回退 */
@media (max-width: 768px) {
  .data-panel {
    padding: 24px 20px;
  }
}

/* ============================================
   ===== 商标转让 · 查询条件组合可视化（2026-09-01）=====
   ============================================ */
.viz-tmsearch {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.viz-tmsearch .viz-head {
  margin-bottom: 2px;
}
.vts-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.vts-mode {
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(37, 99, 235, 0.06);
  border: 1px solid rgba(37, 99, 235, 0.14);
}
.vts-mode.active {
  color: #fff;
  background: var(--gradient-1);
  border-color: transparent;
}
.vts-field {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.16);
}
.vts-field .vts-ico {
  font-size: 0.9rem;
}
.vts-field .vts-input {
  flex: 1;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.vts-field button {
  padding: 5px 16px;
  border: none;
  border-radius: 50px;
  background: var(--gradient-1);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-sans);
}
.vts-rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.vts-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.04);
  border: 1px solid rgba(37, 99, 235, 0.1);
}
.vts-row b {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  min-width: 76px;
}
.vts-row span {
  font-size: 12px;
  color: #94A3B8;
}
.vts-submit {
  width: 100%;
  padding: 11px 20px;
  border: none;
  border-radius: 12px;
  background: var(--gradient-1);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.28);
}
.vts-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.36);
}
.vts-result {
  margin-top: 10px;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  line-height: 1.6;
}
.vts-result.searched {
  color: #B45309;
}

/* ============================================
   ===== 商标转让 · 可交互查询（弹窗选类别）=====
   ============================================ */
.vts-field .vts-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 0.82rem;
  font-family: var(--font-sans);
  outline: none;
}
.vts-field .vts-input::placeholder {
  color: var(--text-muted);
}
.vts-field .vts-search {
  padding: 5px 16px;
  border: none;
  border-radius: 50px;
  background: var(--gradient-1);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition);
}
.vts-field .vts-search:hover {
  opacity: .9;
  transform: translateY(-1px);
}
.vts-cat-val {
  flex: 1;
  min-width: 0;
  font-size: 12px;
  color: #475569;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.vts-cat-btn {
  padding: 4px 14px;
  border-radius: 50px;
  border: 1px solid rgba(37, 99, 235, 0.3);
  background: #fff;
  color: #2563EB;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: var(--transition);
}
.vts-cat-btn:hover {
  background: rgba(37, 99, 235, 0.08);
}
.vts-sorts {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.vts-sort {
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.12);
  cursor: pointer;
  transition: var(--transition);
}
.vts-sort.active {
  color: #fff;
  background: var(--gradient-1);
  border-color: transparent;
}
.vts-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.vts-chip {
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.12);
  cursor: pointer;
  transition: var(--transition);
}
.vts-chip.active {
  color: #fff;
  background: var(--gradient-1);
  border-color: transparent;
}
.vts-row b {
  flex-shrink: 0;
}
.vts-row .vts-chips {
  flex: 1;
}

/* 类别选择弹窗 */
.vts-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
}
.vts-modal.open {
  display: flex;
  align-items: center;
  justify-content: center;
}
.vts-modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
}
.vts-modal-panel {
  position: relative;
  width: min(600px, 92vw);
  max-height: 82vh;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: fadeInUp .3s ease;
}
.vts-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(37, 99, 235, 0.1);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}
.vts-modal-close {
  width: 28px;
  height: 28px;
  border: none;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 50%;
  color: #2563EB;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}
.vts-modal-grid {
  padding: 16px 20px;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.vts-modal-body {
  padding: 16px 20px;
  overflow-y: auto;
}
.vts-mg {
  margin-bottom: 16px;
}
.vts-mg:last-child {
  margin-bottom: 0;
}
.vts-mg-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.vts-cat-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(37, 99, 235, 0.12);
  background: rgba(37, 99, 235, 0.03);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.82rem;
  color: var(--text-primary);
}
.vts-cat-opt i {
  font-style: normal;
  font-size: 0.7rem;
  font-weight: 700;
  color: #2563EB;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 6px;
  padding: 1px 6px;
  flex-shrink: 0;
}
.vts-cat-opt.checked {
  border-color: #2563EB;
  background: rgba(37, 99, 235, 0.1);
  color: #1D4ED8;
}
.vts-modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid rgba(37, 99, 235, 0.1);
}
.vts-modal-clear {
  padding: 8px 18px;
  border-radius: 50px;
  border: 1px solid rgba(37, 99, 235, 0.3);
  background: #fff;
  color: #2563EB;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
}
.vts-modal-ok {
  padding: 8px 22px;
  border-radius: 50px;
  border: none;
  background: var(--gradient-1);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
}
@media (max-width: 560px) {
  .vts-modal-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   ===== 业务赋能页（trademark-search.html 重构）=====
   01 AI 智能体降本增效 / 02 自动化智能化经营 / 03 全面经营能力
   ============================================================ */
.biz-sec {
  padding: 84px 0 72px;
  background: var(--bg-dark);
}

.biz-sec .biz-head {
  margin-bottom: 42px;
}

.biz-intro {
  max-width: 780px;
  margin: 18px auto 0;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 2.05;
  text-align: center;
}

.biz-intro-left {
  margin: 0 0 22px;
  text-align: left;
}

/* —— 板块 01：左文右对话 —— */
.biz-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 34px;
  align-items: center;
}

.biz-feats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.biz-feat {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 15px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  transition: var(--transition);
}

.biz-feat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: rgba(37, 99, 235, 0.28);
}

.bf-ico {
  font-size: 1.25rem;
  line-height: 1.3;
  flex-shrink: 0;
}

.biz-feat b.bf-title {
  display: block;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.biz-feat .bf-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* AI 智能体对话卡 */
.agent-card {
  background: linear-gradient(152deg, #15233F 0%, #1E3A8A 118%);
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 24px 60px rgba(30, 58, 138, 0.28);
  color: #fff;
}

.ag-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.ag-avatar {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient-1);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.05rem;
  flex-shrink: 0;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.4);
}

.ag-meta b {
  display: block;
  font-size: 0.98rem;
  font-weight: 700;
}

.ag-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.72);
}

.ag-status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34D399;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.2);
}

.ag-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}

.ag-msg {
  max-width: 86%;
  padding: 10px 14px;
  font-size: 0.83rem;
  line-height: 1.85;
  border-radius: 14px;
}

.ag-in {
  align-self: flex-end;
  background: rgba(255, 255, 255, 0.14);
  border-bottom-right-radius: 4px;
}

.ag-out {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom-left-radius: 4px;
}

.ag-out p { margin-bottom: 6px; }
.ag-out p:last-child { margin-bottom: 0; }

.ag-tip {
  color: #BFDBFE;
}

.ag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ag-chips span {
  font-size: 0.7rem;
  padding: 4px 11px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.85);
}

.ag-foot {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.ag-foot span {
  font-size: 0.74rem;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}

.ag-foot b {
  display: block;
  font-size: 1rem;
  color: #fff;
  margin-bottom: 1px;
}

/* —— 板块 02：自动化链路 —— */
.ops-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 18px;
}

.ops-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 24px 20px 20px;
  transition: var(--transition);
}

.ops-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(37, 99, 235, 0.3);
}

.ops-num {
  position: absolute;
  top: 16px;
  right: 18px;
  font-size: 1.9rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), rgba(6, 182, 212, 0.14));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.ops-ico {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  font-size: 1.35rem;
  border-radius: 14px;
  background: rgba(37, 99, 235, 0.08);
  margin-bottom: 14px;
}

.ops-title {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.ops-desc {
  display: block;
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.biz-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.biz-mini {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
}

.biz-mini .bm-ico {
  font-size: 1.3rem;
  line-height: 1.2;
  flex-shrink: 0;
}

.biz-mini b {
  display: block;
  font-size: 0.94rem;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.biz-mini span:not(.bm-ico) {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* —— 板块 03：全面经营三卡 —— */
.biz-scene {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.scene-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 26px 24px;
  transition: var(--transition);
}

.scene-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card);
  border-color: rgba(37, 99, 235, 0.3);
}

.scene-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.scene-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  background: var(--gradient-card);
  border: 1px solid rgba(37, 99, 235, 0.18);
}

.scene-tag {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  background: rgba(37, 99, 235, 0.08);
  color: #2563EB;
  white-space: nowrap;
}

.scene-card h3 {
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.scene-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.95;
  margin-bottom: 18px;
  flex: 1;
}

.scene-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.scene-chips span {
  font-size: 0.72rem;
  padding: 4px 11px;
  border-radius: 50px;
  background: rgba(37, 99, 235, 0.06);
  border: 1px solid rgba(37, 99, 235, 0.16);
  color: var(--text-secondary);
}

/* —— 业务赋能页响应式 —— */
@media (max-width: 992px) {
  .biz-grid {
    grid-template-columns: 1fr;
  }

  .biz-visual {
    order: -1;
    max-width: 560px;
  }

  .ops-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .biz-mini-grid {
    grid-template-columns: 1fr;
  }

  .biz-scene {
    grid-template-columns: 1fr;
    max-width: 620px;
    margin: 0 auto;
  }
}

@media (max-width: 560px) {
  .biz-feats {
    grid-template-columns: 1fr;
  }

  .ops-steps {
    grid-template-columns: 1fr;
  }

  .ag-foot {
    flex-wrap: wrap;
  }
}

/* 02 板块 · 六步自动化要点（3 列两行） */
.ops-steps--six {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 992px) {
  .ops-steps--six {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .ops-steps--six {
    grid-template-columns: 1fr;
  }
}

/* AI 智能体对话卡 · 推理要点高亮标签 */
.ag-out b {
  color: #A7C7FF;
  font-weight: 700;
  margin-right: 1px;
}

/* ============================================================
   获客赋能页 · 三大获客引擎同屏并列卡（tuoke-automation.html）
   ============================================================ */
.eg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}

.eg-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 22px;
  padding: 26px 24px 22px;
  overflow: hidden;
  transition: var(--transition);
}

.eg-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-1);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.eg-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-color: rgba(37, 99, 235, 0.3);
}

.eg-card:hover::before {
  opacity: 1;
}

.eg-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 18px;
}

.eg-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  background: var(--gradient-card);
  border: 1px solid rgba(37, 99, 235, 0.18);
  flex-shrink: 0;
}

.eg-num {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(6, 182, 212, 0.22));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.eg-card h3 {
  font-size: 1.26rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.eg-slogan {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: #2563EB;
  margin-bottom: 12px;
}

.eg-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.eg-list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 20px;
}

.eg-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.eg-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: #2563EB;
  font-weight: 700;
}

.eg-flow {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding-top: 14px;
  border-top: 1px dashed rgba(37, 99, 235, 0.22);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.eg-flow b {
  color: #2563EB;
  font-weight: 700;
  white-space: nowrap;
}

@media (max-width: 900px) {
  .eg-grid {
    grid-template-columns: 1fr;
    max-width: 640px;
    margin: 0 auto;
  }
}

/* 能力卡 · 开通引导条 */
.eg-cta {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.06);
  border: 1px dashed rgba(37, 99, 235, 0.35);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.eg-cta .eg-cta-ico {
  flex-shrink: 0;
  font-size: 1rem;
}

.eg-cta b {
  color: #2563EB;
  font-weight: 700;
  white-space: nowrap;
}

.eg-cta {
  cursor: pointer;
  transition: var(--transition);
}

.eg-cta:hover {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.55);
  transform: translateY(-1px);
}

/* 联系客服弹窗 · 企业微信二维码 + 客服电话 */
.kf-body {
  text-align: center;
}

.kf-qr {
  position: relative;
  width: 176px;
  height: 176px;
  margin: 0 auto 20px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px dashed rgba(37, 99, 235, 0.35);
  background: #F5F8FF;
}

.kf-qr-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: #64748B;
}

.kf-qr-fallback .kf-qr-mark {
  font-size: 2.3rem;
  line-height: 1;
  opacity: 0.85;
}

.kf-qr-fallback b {
  font-size: 0.88rem;
  color: #2563EB;
  font-weight: 700;
}

.kf-qr-fallback i {
  font-style: normal;
  font-size: 0.74rem;
  color: #94A3B8;
}

.kf-qr img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
}

.kf-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.kf-ico {
  font-size: 1.15rem;
}

.kf-tel {
  font-size: 1.35rem;
  font-weight: 800;
  color: #2563EB;
  letter-spacing: 0.5px;
}

.kf-tel:hover {
  color: #1D4ED8;
}

.kf-tip {
  font-size: 0.78rem;
  color: #94A3B8;
  margin: 0;
}

/* ============================================================
   经营赋能页 · 软件产品图文列表（customization.html，每行 4 个）
   ============================================================ */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: stretch;
}

.prod-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  overflow: hidden;
  transition: var(--transition);
}

.prod-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-color: rgba(37, 99, 235, 0.3);
}

/* 产品图封面（渐变占位，可替换为真实截图） */
.prod-cover {
  position: relative;
  height: 132px;
  padding: 14px;
  background: linear-gradient(135deg, #EEF4FF 0%, #D9E7FF 100%);
  display: flex;
  align-items: flex-end;
}

.prod-card:nth-child(even) .prod-cover {
  background: linear-gradient(135deg, #E8F7FF 0%, #D6F0F7 100%);
}

.pc-num {
  position: absolute;
  top: 12px;
  left: 14px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #2563EB;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: 50px;
  padding: 2px 10px;
}

.pc-icon {
  width: 52px;
  height: 52px;
  border-radius: 15px;
  background: #fff;
  display: grid;
  place-items: center;
  font-size: 1.55rem;
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.16);
  margin-bottom: auto;
}

.pc-icon {
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0;
}

.pc-type {
  position: absolute;
  right: 14px;
  bottom: 12px;
  font-size: 0.68rem;
  font-weight: 600;
  color: #2563EB;
  background: rgba(255, 255, 255, 0.88);
  border-radius: 50px;
  padding: 3px 11px;
}

.prod-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 18px 18px 16px;
}

.prod-body h3 {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.45;
  min-height: 2.9em;
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.prod-body p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 14px;
  flex: 1;
}

.prod-svcs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.prod-svcs span {
  font-size: 0.68rem;
  padding: 3px 9px;
  border-radius: 50px;
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.18);
  color: var(--text-secondary);
}

@media (max-width: 1100px) {
  .prod-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .prod-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== 页脚备案与运营主体信息（官网各页统一） ===== */
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px 18px;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid rgba(37, 99, 235, 0.1);
  font-size: 0.78rem;
  line-height: 1.9;
  color: var(--text-muted);
}

@media (max-width: 560px) {
  .footer-legal {
    gap: 4px 10px;
  }
}

/* ===== 兼容旧版：查询加载弹窗（商标检索/申请人等页复用） ===== */
.rk-loading-overlay { position: fixed; inset: 0; background: rgba(255,255,255,.75); backdrop-filter: blur(2px); z-index: 9999; display: none; align-items: center; justify-content: center; }
.rk-loading-overlay.show { display: flex; }
.rk-loading-box { width: 340px; max-width: 86vw; background: #fff; border: 1px solid var(--border-color); border-radius: 16px; box-shadow: 0 20px 50px rgba(0,0,0,.12); padding: 28px 26px; text-align: center; }
.rk-loading-title { font-size: .95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.rk-loading-title .ld-spinner { width: 16px; height: 16px; border: 2px solid rgba(37,99,235,.2); border-top-color: #2563EB; border-radius: 50%; animation: ld-spin .8s linear infinite; }
@keyframes ld-spin { to { transform: rotate(360deg); } }
.rk-progress { height: 8px; background: #F0F0F5; border-radius: 99px; overflow: hidden; }
.rk-progress-bar { height: 100%; width: 0; background: linear-gradient(90deg,#2563EB,#06B6D4); border-radius: 99px; transition: width .2s; }
.rk-progress-text { margin-top: 8px; font-size: .78rem; color: #7C8798; }
/* ===== ȫ����ʾ��������� alert���Ӿ������¼/���뵯����===== */
.sb-tip-modal { position: fixed; inset: 0; z-index: 10001; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; }
.sb-tip-modal.open { opacity: 1; visibility: visible; }
.sb-tip-overlay { position: absolute; inset: 0; background: rgba(15, 23, 42, 0.55); backdrop-filter: blur(3px); }
.sb-tip-box { position: relative; width: 100%; max-width: 340px; background: #fff; border-radius: 20px; padding: 30px 26px 24px; text-align: center; box-shadow: 0 30px 80px rgba(15, 23, 42, 0.28); transform: translateY(16px) scale(0.97); transition: transform .25s ease; max-height: 90vh; overflow-y: auto; }
.sb-tip-modal.open .sb-tip-box { transform: translateY(0) scale(1); }
.sb-tip-icon { font-size: 2rem; line-height: 1; margin-bottom: 14px; }
.sb-tip-title { font-size: 1.05rem; font-weight: 800; color: #1e2530; margin-bottom: 10px; }
.sb-tip-msg { font-size: .92rem; color: #5a6472; line-height: 1.65; margin-bottom: 22px; word-break: break-word; white-space: pre-line; }
.sb-tip-btn { width: 100%; border: none; border-radius: 12px; padding: 12px 0; font-size: .95rem; font-weight: 700; color: #fff; background: linear-gradient(135deg, #2563EB, #06B6D4); cursor: pointer; transition: opacity .2s ease, transform .15s ease; }
.sb-tip-btn:hover { opacity: .92; transform: translateY(-1px); }