/* ========================================
   慧眼AIGEO 官网克隆版
   颜色风格：浅蓝科技底 + 深蓝标题 + 金色高亮 + 蓝色强调
   结构参考：GEO 行业官网通用布局
   ======================================== */

:root {
  --bg-primary: #f5faff;
  --bg-secondary: #eef6ff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f7ff;
  --bg-light: #dbeafe;
  --bg-input: rgba(12, 23, 49, 0.08);

  --primary-blue: #0C1731;
  --primary-blue-light: #5684ee;
  --primary-blue-dark: #2060e8;
  --primary-blue-rgb: 12, 23, 49;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  /* 标题专用深色 + 金色高亮（参考慧眼AIGEO主视觉） */
  --title-dark: #0C1731;
  --title-gold: #d4af37;
  --title-gold-light: #f0c674;
  --title-gold-dark: #b8972f;
  --title-gold-rgb: 212, 175, 55;

  --border-color: rgba(12, 23, 49, 0.12);
  --border-color-strong: rgba(12, 23, 49, 0.35);

  --gradient-hero: linear-gradient(135deg, #e8f4fc 0%, #f5faff 50%, #ffffff 100%);
  --gradient-primary: linear-gradient(135deg, #0C1731 0%, #5684ee 100%);
  --gradient-card: linear-gradient(180deg, rgba(12, 23, 49, 0.08) 0%, rgba(12, 23, 49, 0) 100%);
  --gradient-cta: linear-gradient(135deg, #0C1731 0%, #5684ee 50%, #0C1731 100%);
  --gradient-glow: radial-gradient(circle at 20% 30%, rgba(86, 132, 238, 0.18) 0%, transparent 50%);

  --shadow-card: 0 10px 40px rgba(12, 23, 49, 0.1);
  --shadow-primary: 0 0 30px rgba(12, 23, 49, 0.25);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 25%, rgba(86, 132, 238, 0.12) 0%, transparent 35%),
    radial-gradient(circle at 85% 70%, rgba(12, 23, 49, 0.08) 0%, transparent 30%);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 图片插槽：图片存在时覆盖占位，缺失时显示原有 SVG 占位 */
.img-slot {
  position: relative;
}

.img-slot > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 3;
}

.img-slot.contain > img {
  object-fit: contain;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  position: relative;
  color: var(--title-dark);
  letter-spacing: -0.02em;
}

.section-title .gold {
  color: var(--title-gold);
  text-shadow: 0 0 18px rgba(var(--title-gold-rgb), 0.22);
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 50px;
}

.title-underline {
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--title-gold-dark) 0%, var(--title-gold) 50%, var(--title-gold-light) 100%);
  border-radius: 2px;
  margin: 14px auto 0;
  box-shadow: 0 0 14px rgba(var(--title-gold-rgb), 0.35);
}

.gold-text {
  color: var(--title-gold);
  text-shadow: 0 0 14px rgba(var(--title-gold-rgb), 0.2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(12, 23, 49, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(12, 23, 49, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--primary-blue);
  border: 1px solid var(--border-color-strong);
}

.btn-outline:hover {
  background: rgba(12, 23, 49, 0.08);
  border-color: var(--primary-blue);
}

/* ========================================
   顶部导航
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 30px rgba(12, 23, 49, 0.1);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 16px;
}

.logo-img {
  height: 38px;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 15px;
  color: var(--text-secondary);
  position: relative;
  padding: 8px 0;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: all var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.header-phone svg {
  width: 18px;
  height: 18px;
  color: var(--primary-blue);
}

.login-btn {
  padding: 8px 22px;
  border-radius: 20px;
  border: 1px solid var(--border-color-strong);
  color: var(--primary-blue);
  font-size: 14px;
  transition: all var(--transition);
}

.login-btn:hover {
  background: rgba(12, 23, 49, 0.1);
  border-color: var(--primary-blue);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
}

/* ========================================
   右侧悬浮咨询栏
   ======================================== */
.float-sidebar {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  background: var(--bg-card);
  border: 1px solid var(--border-color-strong);
  border-right: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  box-shadow: 0 10px 40px rgba(12, 23, 49, 0.12), 0 0 0 1px rgba(12, 23, 49, 0.1);
  overflow: visible;
}

.float-sidebar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 72px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 12px;
  transition: all var(--transition);
  cursor: pointer;
}

.float-sidebar-item:last-child {
  border-bottom: none;
}

.float-sidebar-item svg {
  width: 22px;
  height: 22px;
  margin-bottom: 6px;
  color: var(--primary-blue);
}

.float-sidebar-item:hover,
.float-sidebar-item.active {
  background: rgba(12, 23, 49, 0.08);
  color: var(--primary-blue);
}

/* ========================================
   右侧悬浮咨询滑出面板
   ======================================== */
.float-sidebar-panel {
  position: absolute;
  right: calc(100% + 10px);
  top: 50%;
  width: 240px;
  background: #ffffff;
  border: 1px solid var(--border-color-strong);
  border-radius: var(--radius-lg);
  box-shadow: -10px 10px 40px rgba(12, 23, 49, 0.14);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-50%) translateX(12px);
  transform-origin: right center;
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  z-index: 1;
}

.float-sidebar.has-active .float-sidebar-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
  pointer-events: auto;
}

.float-sidebar-panel-title {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 14px;
}

.float-sidebar-panel-title strong {
  display: block;
  font-size: 20px;
  color: var(--title-dark);
  font-weight: 700;
  margin-bottom: 2px;
}

.float-sidebar-panel-qr {
  width: 150px;
  height: 150px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: 0 4px 14px rgba(12, 23, 49, 0.08);
}

.float-sidebar-panel-qr svg,
.float-sidebar-panel-qr img {
  width: 100%;
  height: 100%;
  display: block;
}

.float-sidebar-panel-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
}

.float-sidebar-panel-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  margin-top: 4px;
}

.float-sidebar-panel-call:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(12, 23, 49, 0.22);
}

.float-sidebar-panel-call svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 480px) {
  .float-sidebar-panel {
    width: 210px;
    padding: 22px 18px;
    right: calc(100% + 8px);
  }

  .float-sidebar-panel-qr {
    width: 120px;
    height: 120px;
  }

  .float-sidebar-panel-title strong {
    font-size: 18px;
  }
}

/* ========================================
   Hero 主视觉区
   ======================================== */
.hero {
  min-height: auto;
  padding-top: 120px;
  padding-bottom: 40px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

/* 顶部背景图：image/top_bg.png 存在时替换默认渐变背景 */
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 1;
  pointer-events: none;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    var(--gradient-glow),
    linear-gradient(rgba(12, 23, 49, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 23, 49, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, 70px 70px, 70px 70px;
  pointer-events: none;
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(12, 23, 49, 0.12);
  box-shadow: 0 0 0 4px rgba(12, 23, 49, 0.04), 0 0 20px rgba(12, 23, 49, 0.15);
  animation: float 8s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-30px) translateX(15px); }
}

.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--title-dark);
  white-space: nowrap;
}

.hero-title .gold {
  color: var(--title-gold);
  text-shadow: 0 0 20px rgba(var(--title-gold-rgb), 0.24);
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero-subtitle .gold {
  color: var(--title-gold);
  font-weight: 700;
  text-shadow: 0 0 14px rgba(var(--title-gold-rgb), 0.22);
}

.hero-qr-section {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}

.hero-qr-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #ffffff;
  border: 2px solid rgba(86, 132, 238, 0.55);
  border-radius: var(--radius-lg);
  padding: 14px 18px 12px;
  box-shadow: 0 10px 30px rgba(212, 175, 55, 0.22), 0 4px 12px rgba(12, 23, 49, 0.08);
}

.hero-qr {
  width: 132px;
  height: 132px;
  background: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hero-platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  flex-wrap: nowrap;
}

.platform-icon img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 8px;
}

.platform-icon {
  min-width: 62px;
  padding: 10px 8px 8px;
  border-radius: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  transition: all var(--transition);
  flex-shrink: 0;
}

.platform-icon .platform-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
  white-space: nowrap;
}

.platform-icon:hover {
  transform: translateY(-5px);
  border-color: var(--primary-blue);
  box-shadow: 0 8px 25px rgba(12, 23, 49, 0.2);
}

.platform-icon svg {
  width: 26px;
  height: 26px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-cta .btn {
  padding: 14px 24px;
  font-size: 16px;
  white-space: nowrap;
}

.hero-qr-label {
  font-size: 17px;
  font-weight: 800;
  color: var(--title-dark);
  margin-top: 8px;
  white-space: nowrap;
  letter-spacing: 1px;
}

.hero-qr-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 3px;
  white-space: nowrap;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-illustration {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1;
  position: relative;
  filter: drop-shadow(0 20px 50px rgba(12, 23, 49, 0.15));
}

.hero-illustration svg {
  width: 100%;
  height: 100%;
}

/* 资质徽章 */
.trust-badges {
  padding: 28px 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  z-index: 3;
}

.trust-badges .container {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  justify-items: center;
  align-items: center;
  gap: 16px;
}

.trust-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
}

.trust-badge-num {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--primary-blue);
  letter-spacing: 0.5px;
}

.trust-badge-num em {
  font-style: normal;
  font-size: 15px;
  font-weight: 700;
  margin-left: 2px;
}

.trust-badge-num.gold {
  color: var(--title-gold-dark);
}

.trust-badge-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ========================================
   为什么要做GEO
   ======================================== */
.why-geo {
  background: var(--bg-secondary);
}

.why-geo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

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

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-color-strong);
  box-shadow: var(--shadow-card);
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(12, 23, 49, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary-blue);
}

.feature-icon svg {
  width: 30px;
  height: 30px;
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 14px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}

.feature-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.feature-stat {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.feature-stat strong {
  color: var(--primary-blue);
}

/* ========================================
   传统SEO vs GEO 对比
   ======================================== */
.compare {
  background: var(--bg-primary);
}

.compare-wrapper {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 30px;
  align-items: center;
}

.compare-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  transition: all var(--transition);
}

.compare-card:hover {
  border-color: var(--border-color-strong);
  box-shadow: var(--shadow-card);
}

.compare-card.active {
  background: var(--gradient-card);
  border-color: var(--border-color-strong);
}

.compare-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.compare-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(12, 23, 49, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  font-weight: 700;
  font-size: 14px;
}

.compare-card.active .compare-card-icon {
  background: var(--gradient-primary);
  color: #ffffff;
}

.compare-card h3 {
  font-size: 24px;
  font-weight: 700;
}

.compare-card.active h3 {
  color: var(--primary-blue);
}

.compare-item {
  margin-bottom: 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-color);
}

.compare-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.compare-item h4 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.compare-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.vs-badge {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #ffffff;
  box-shadow: var(--shadow-primary);
  position: relative;
  z-index: 2;
}

/* ========================================
   AI推荐展示
   ======================================== */
.ai-showcase {
  background: var(--bg-secondary);
  overflow: hidden;
}

.ai-showcase .section-subtitle {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.ai-chat-grid {
  position: relative;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 30px 140px 0;
}

.ai-platforms-top {
  display: flex;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.ai-platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 13px;
}

.ai-platform-item .icon {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  transition: all var(--transition);
}

.ai-platform-item .icon:hover {
  border-color: var(--primary-blue);
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(12, 23, 49, 0.15);
}

.ai-platform-item .icon svg {
  width: 28px;
  height: 28px;
}

.ai-conversation {
  width: 100%;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  z-index: 2;
}

.ai-bubble {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  max-width: 80%;
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.ai-bubble.left {
  align-self: flex-start;
}

.ai-bubble.right {
  align-self: flex-end;
  flex-direction: row-reverse;
  max-width: 72%;
}

.ai-bubble-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.ai-bubble.right .ai-bubble-avatar {
  background: var(--bg-card);
  border: 1px solid var(--primary-blue);
  color: var(--primary-blue);
}

.ai-bubble-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 15px;
  color: var(--text-secondary);
}

.ai-bubble.left .ai-bubble-content {
  border-top-left-radius: 4px;
}

.ai-bubble.right .ai-bubble-content {
  border-top-right-radius: 4px;
  background: rgba(12, 23, 49, 0.1);
  border-color: var(--border-color-strong);
}

.ai-questions-float {
  position: absolute;
  width: 100%;
  max-width: 920px;
  height: 100%;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 1;
}

.ai-question-tag {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  animation: floatTag 6s ease-in-out infinite;
}

@keyframes floatTag {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .ai-conversation {
    max-width: 90%;
  }
}

@media (max-width: 768px) {
  .ai-platforms-top {
    gap: 18px;
  }

  .ai-platform-item .icon {
    width: 46px;
    height: 46px;
  }

  .ai-conversation {
    max-width: 100%;
  }

  .ai-questions-float {
    display: none;
  }
}

/* ========================================
   为什么选择我们
   ======================================== */
.why-us {
  background: url('../image/bg_5.png') center / 100% 100% no-repeat;
}

.why-us-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.why-us-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.why-us-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-color-strong);
  box-shadow: var(--shadow-card);
}

.why-us-card .feature-icon {
  margin: 0 auto 18px;
}

.why-us-card h3 {
  font-size: 20px;
  margin-bottom: 14px;
}

.why-us-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.why-us-card .btn-outline {
  padding: 8px 22px;
  font-size: 14px;
}

/* ========================================
   案例展示
   ======================================== */
.cases-cta {
  text-align: center;
}

/* ========================================
   合作流程
   ======================================== */
.process {
  background: var(--bg-primary);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--border-color) 0%, var(--primary-blue) 50%, var(--border-color) 100%);
  z-index: 0;
}

.process-step {
  position: relative;
  z-index: 1;
  text-align: center;
}

.process-step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-blue);
  box-shadow: 0 0 20px rgba(12, 23, 49, 0.2);
}

.process-step h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.process-step p strong {
  color: var(--primary-blue);
}

/* ========================================
   关于我们
   ======================================== */
.about {
  background: var(--bg-secondary);
}

.about-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-content h3 {
  font-size: 28px;
  margin-bottom: 20px;
}

.about-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
}

.about-content p strong {
  color: var(--primary-blue);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.about-stat {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: all var(--transition);
}

.about-stat:hover {
  border-color: var(--primary-blue);
  transform: translateY(-5px);
}

.about-stat .num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-blue);
  margin-bottom: 6px;
}

.about-stat .label {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ========================================
   团队实力
   ======================================== */
/* ========================================
   团队实力（大长图占位）
   ======================================== */
.team-strength {
  background: var(--bg-secondary);
}

/* 图片占位通用框架：放入对应图片即自动显示，未放图时显示提示占位 */
.photo-frame {
  position: relative;
  border: 2px dashed rgba(86, 132, 238, 0.55);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #ffffff 0%, #fffef8 100%);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.photo-frame:hover {
  border-color: var(--gold);
  box-shadow: 0 10px 30px rgba(12, 23, 49, 0.08);
}

.photo-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 340px;
  padding: 30px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

.photo-hint b {
  color: var(--primary-blue);
  font-weight: 600;
}

.photo-img {
  display: block;
  width: 100%;
  height: auto;
}

.photo-frame.has-img .photo-hint {
  display: none;
}

.photo-frame.is-empty .photo-img {
  display: none;
}

.team-banner {
  border-radius: var(--radius-lg);
}

/* ========================================
   行业权威认可（证书图墙占位）
   ======================================== */
.authority {
  background: var(--bg-primary);
}

.cert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.cert-slot {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
}

.cert-slot .photo-hint {
  min-height: 0;
  height: 100%;
  font-size: 14px;
  padding: 16px;
}

.cert-slot .photo-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
}

@media (max-width: 1024px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
  .cert-slot {
    aspect-ratio: 4 / 3;
  }
}

/* ========================================
   企业文化图（团队下方双图并排）
   ======================================== */
.culture-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}

.culture-slot {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
}

.culture-slot .photo-hint {
  min-height: 0;
  height: 100%;
  font-size: 14px;
  padding: 16px;
}

.culture-slot .photo-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
}

@media (max-width: 640px) {
  .culture-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 24px;
  }
}

/* ========================================
   区县合作席位
   ======================================== */
.team {
  background: var(--bg-primary);
}

.team-status {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.status-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: all var(--transition);
}

.status-item:hover {
  transform: translateY(-4px);
  border-color: var(--primary-blue);
}

.status-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--primary-blue);
  line-height: 1;
  margin-bottom: 8px;
}

.status-num span {
  font-size: 24px;
  font-weight: 700;
}

.status-item.status-open .status-num {
  color: var(--gold);
}

.status-label {
  font-size: 15px;
  color: var(--text-secondary);
}

.team-seats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 28px;
}

.seat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.seat-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-card);
}

.seat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition);
}

.seat-card:hover::before {
  opacity: 1;
}

.seat-city {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.seat-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  white-space: nowrap;
}

.seat-tag.hot {
  background: rgba(212, 175, 55, 0.12);
  color: var(--gold);
}

.seat-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ========================================
   资讯
   ======================================== */
.news {
  background: var(--bg-primary);
}

.news-wrapper {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.news-column {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.news-column-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.news-column-title svg {
  width: 24px;
  height: 24px;
  color: var(--primary-blue);
}

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

.news-item {
  display: flex;
  gap: 18px;
  padding: 20px;
  background: linear-gradient(135deg, #ffffff 0%, #fffef8 100%);
  border: 1px solid rgba(86, 132, 238, 0.18);
  border-radius: var(--radius-lg);
  box-shadow: 0 6px 20px rgba(12, 23, 49, 0.06);
  transition: all var(--transition);
  position: relative;
}

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

.news-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(12, 23, 49, 0.10);
  border-color: rgba(86, 132, 238, 0.35);
}

.news-thumb {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #fff8e7 0%, #ffefc8 100%);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d4af37;
  font-size: 12px;
  overflow: hidden;
}

.news-thumb svg {
  width: 38px;
  height: 38px;
  opacity: 0.8;
}

.news-content {
  flex: 1;
}

.news-content h4 {
  font-size: 17px;
  margin-bottom: 8px;
  line-height: 1.4;
  color: var(--primary-blue);
  font-weight: 600;
}

.news-content h4 a {
  color: inherit;
  text-decoration: none;
}

.news-content h4 a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 整卡可点击：标题链接的伪元素覆盖整张 news-item */
.news-content h4 a::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.news-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-date {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.news-side-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition);
}

.news-side-item:last-child {
  border-bottom: none;
}

.news-side-item:hover a {
  color: var(--primary-blue);
}

.news-side-item a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.news-side-item a span:last-child {
  white-space: nowrap;
  flex-shrink: 0;
}

.news-more {
  text-align: center;
  margin-top: 30px;
}

/* ========================================
   底部CTA
   ======================================== */
.cta-banner {
  background: var(--gradient-cta);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 40%);
}

.cta-banner .container {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta-banner h2 {
  font-size: 32px;
  margin-bottom: 12px;
  color: #ffffff;
}

.cta-banner h2 .gold {
  color: var(--title-gold-light);
  text-shadow: 0 0 22px rgba(var(--title-gold-rgb), 0.45);
}

.cta-banner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.cta-form {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto;
}

.cta-form input {
  flex: 1;
  min-width: 200px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-size: 15px;
  outline: none;
  transition: all var(--transition);
}

.cta-form input::placeholder {
  color: rgba(255, 255, 255, 0.65);
}

.cta-form input:focus {
  border-color: var(--primary-blue-light);
  background: rgba(255, 255, 255, 0.18);
}

.cta-form .btn {
  padding: 14px 40px;
}

/* 底部 CTA 联系方式卡片（电话 + 微信，替代留资表单） */
.cta-contact {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.cta-contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(86, 132, 238, 0.35);
  border-radius: var(--radius-lg);
  padding: 18px 26px;
  min-width: 250px;
  box-shadow: 0 12px 32px rgba(12, 23, 49, 0.20);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cta-contact-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(12, 23, 49, 0.28), 0 0 24px rgba(212, 175, 55, 0.18);
}
.cta-contact-icon {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  color: var(--primary-blue);
  filter: drop-shadow(0 4px 10px rgba(86, 132, 238, 0.25));
}
.cta-contact-qr {
  width: 64px;
  height: 64px;
  flex: 0 0 auto;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(12, 23, 49, 0.10);
  background: #fff;
}
.cta-contact-qr img,
.cta-contact-qr svg {
  display: block;
  width: 100%;
  height: 100%;
}
.cta-contact-info {
  text-align: left;
}
.cta-contact-label {
  font-size: 13px;
  color: #64748b;
  margin-bottom: 4px;
}
.cta-contact-value {
  font-size: 19px;
  font-weight: 800;
  color: #0C1731;
  text-decoration: none;
  line-height: 1.2;
}
.cta-contact-value:hover {
  color: var(--primary-blue);
}

/* ========================================
   底部招商 CTA · 两栏留资布局
   ======================================== */
.join-cta-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  text-align: left;
}

.join-cta-copy h2 {
  font-size: 32px;
  margin-bottom: 12px;
  color: #ffffff;
}

.join-cta-copy h2 .gold {
  color: var(--title-gold-light);
  text-shadow: 0 0 22px rgba(var(--title-gold-rgb), 0.45);
}

.join-cta-copy p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  line-height: 1.8;
}

.join-cta-copy .cta-contact {
  justify-content: center;
  margin-top: 0;
}

.lead-form {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 30px 28px 16px;
  box-shadow: 0 24px 60px rgba(12, 23, 49, 0.32);
  text-align: left;
}

.lead-form-title {
  font-size: 19px;
  font-weight: 800;
  color: #0C1731;
  margin-bottom: 20px;
  line-height: 1.4;
}

.lead-form .form-group {
  margin-bottom: 14px;
}

.lead-form input {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid #d8dee9;
  background: #f7f9fc;
  color: #0C1731;
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  box-sizing: border-box;
}

.lead-form input::placeholder {
  color: #94a3b8;
}

.lead-form input:focus {
  border-color: var(--primary-blue);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(86, 132, 238, 0.18);
}

.lead-form .btn-block {
  width: 100%;
  margin-top: 6px;
  padding: 15px 24px;
  font-size: 16px;
}

.lead-form .lead-form-note {
  font-size: 12.5px;
  color: #94a3b8;
  margin: 12px 0 0;
  line-height: 1.6;
  text-align: center;
}

/* ========================================
   免费 AI 可见度诊断表单页
   ======================================== */
.diagnosis-page {
  padding: 140px 0 90px;
  background: var(--bg-primary);
  position: relative;
}

.diagnosis-page::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 420px;
  background: linear-gradient(135deg, #0C1731 0%, #16264a 58%, #0C1731 100%);
  z-index: 0;
}

.diagnosis-page .container {
  position: relative;
  z-index: 1;
}

.diagnosis-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 42px;
}

.diagnosis-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(212, 175, 55, 0.14);
  border: 1px solid rgba(86, 132, 238, 0.35);
  color: #d4af37;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
}

.diagnosis-title {
  font-size: 40px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.diagnosis-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.75;
}

.diagnosis-card {
  max-width: 880px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 44px 48px;
}

.diagnosis-form {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.form-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--title-dark);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}

.form-section-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #0C1731 0%, #24437c 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d4af37;
}

.form-section-icon svg {
  width: 18px;
  height: 18px;
}

.form-section-required {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group-full {
  grid-column: 1 / -1;
}

.form-group-empty {
  display: none;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.form-label .required {
  color: #dc2626;
  margin-left: 2px;
}

.form-input {
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: #ffffff;
  font-size: 15px;
  color: var(--text-primary);
  transition: all var(--transition);
  font-family: inherit;
}

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

.form-input:hover {
  border-color: rgba(12, 23, 49, 0.25);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-blue-light);
  box-shadow: 0 0 0 3px rgba(86, 132, 238, 0.12);
}

.form-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding-top: 8px;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 36px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}

.btn-submit svg {
  width: 18px;
  height: 18px;
}

.form-actions-hint {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
}

/* 表单提交成功 */
.form-success-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  padding: 24px 12px;
  animation: formSuccessIn 0.4s ease both;
}

.form-success-panel h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--title-dark);
}

.form-success-panel p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 520px;
}

.form-success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #16a34a 0%, #22c55e 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6px;
}

.form-success-icon svg {
  width: 34px;
  height: 34px;
}

.form-success-contact {
  font-size: 14px;
  color: var(--text-secondary);
}

.form-success-contact a {
  color: var(--primary-blue);
  font-weight: 700;
  text-decoration: none;
  font-size: 18px;
}

.form-success-contact a:hover {
  text-decoration: underline;
}

/* 提交成功独立页 */
.success-page {
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-page .container {
  width: 100%;
}

.success-page .diagnosis-card {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 36px;
}

@media (max-width: 768px) {
  .diagnosis-page {
    padding: 120px 0 60px;
  }

  .diagnosis-title {
    font-size: 30px;
  }

  .diagnosis-card {
    padding: 28px 22px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-group-empty {
    display: none;
  }

  .success-page .diagnosis-card {
    padding: 36px 24px;
  }
}

/* 侧栏咨询卡片（替代诊断留资表单） */
.news-side-cta .news-side-contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
}
.news-side-cta .news-side-contact-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #475569;
  margin-bottom: 10px;
}
.news-side-cta .news-side-contact-list svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  color: var(--primary-blue);
}
.news-side-cta .news-side-contact-list a {
  color: #0C1731;
  font-weight: 700;
  text-decoration: none;
}
.news-side-cta .news-side-contact-list a:hover {
  color: var(--primary-blue);
}
.news-side-qr {
  width: 100px;
  height: 100px;
  margin: 0 auto;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(12, 23, 49, 0.10);
  background: #fff;
}
.news-side-qr img,
.news-side-qr svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* 表单提交成功提示 */
.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 36px 24px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-lg);
  text-align: center;
  animation: formSuccessIn 0.4s ease both;
}

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

.form-success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #16a34a;
  color: #fff;
  font-size: 30px;
  line-height: 56px;
  font-weight: 700;
}

.form-success-msg {
  color: #fff;
  font-size: 16px;
  line-height: 1.7;
  max-width: 460px;
  margin: 0;
}

/* ========================================
   页脚
   ======================================== */
.footer {
  background: #0C1731;
  padding: 60px 0 30px;
  border-top: 1px solid rgba(12, 23, 49, 0.2);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.7;
}

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

.footer-col h4 {
  font-size: 15px;
  margin-bottom: 16px;
  color: #ffffff;
  white-space: nowrap;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  white-space: nowrap;
}

.footer-col ul li a:hover {
  color: #ffffff;
}

.footer-contact {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 28px;
}

.footer-contact-info {
  text-align: right;
}

.footer-contact-divider {
  width: 1px;
  height: 68px;
  background: rgba(255, 255, 255, 0.16);
}

.footer-contact-label {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.68);
  margin-bottom: 8px;
}

.footer-contact-label svg {
  width: 18px;
  height: 18px;
  color: var(--title-gold-light);
}

.footer-phone {
  font-size: 28px;
  font-weight: 700;
  color: #ffffff;
}

.footer-qr {
  display: flex;
  justify-content: flex-start;
  gap: 16px;
}

.footer-qr-item {
  text-align: center;
}

.footer-qr-box {
  width: 90px;
  height: 90px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-qr-box svg {
  width: 100%;
  height: 100%;
}

.footer-qr-item p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-friends {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-friends a {
  color: rgba(255, 255, 255, 0.72);
  margin-left: 12px;
}

.footer-friends a:hover {
  color: #ffffff;
}

/* ========================================
   返回顶部
   ======================================== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 998;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-blue);
  color: var(--bg-primary);
  transform: translateY(-3px);
}

/* ========================================
   滚动动画
   ======================================== */
/* 默认可见：无 JS / 爬虫直接读取源码时内容完整可见，保障 SEO 与 GEO 可读性；
   仅在启用 JS 时（html.js）才做入场动画隐藏，避免关键内容对爬虫不可见 */
.js .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.js .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; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
  .nav {
    gap: 16px;
  }

  .nav-link {
    font-size: 13px;
    padding: 6px 0;
  }

  .header-right {
    gap: 12px;
  }

  .header-phone {
    font-size: 12px;
  }

  .header-phone svg {
    width: 16px;
    height: 16px;
  }

  .join-btn {
    padding: 6px 14px;
    font-size: 13px;
  }

  .trust-badges .container {
    gap: 10px;
  }

  .trust-badge-num {
    font-size: 24px;
  }

  .trust-badge-num em {
    font-size: 13px;
  }

  .trust-badge-label {
    font-size: 12px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-visual {
    order: -1;
  }

  .hero-qr-section {
    justify-content: center;
  }

  .hero-cta {
    justify-content: center;
  }

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

  .compare-wrapper {
    grid-template-columns: 1fr;
  }

  .vs-badge {
    margin: 20px auto;
  }

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

  .process-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 30px 16px;
  }

  .process-grid::before {
    display: none;
  }

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

  .about-wrapper,
  .news-wrapper {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .footer-contact {
    flex-direction: column;
    gap: 16px;
  }

  .footer-contact-info {
    text-align: center;
  }

  .footer-contact-label {
    justify-content: center;
  }

  .footer-contact-divider {
    display: none;
  }

  .footer-qr {
    justify-content: center;
  }
}

@media (max-width: 900px) {
  .nav,
  .header-right {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 28px;
  }

  .nav,
  .header-phone,
  .login-btn {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-title {
    font-size: 34px;
    white-space: normal;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta .btn {
    width: 100%;
    font-size: 15px;
    padding: 14px 20px;
  }

  .trust-badges .container {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .trust-badge:last-child {
    grid-column: 1 / -1;
  }

  .why-geo-grid,
  .why-us-grid {
    grid-template-columns: 1fr;
  }

  .process-grid,
  .about-stats {
    grid-template-columns: 1fr;
  }

  .team-status {
    grid-template-columns: 1fr;
  }

  .team-seats {
    grid-template-columns: 1fr;
  }

  .status-num {
    font-size: 36px;
  }

  .seat-card {
    padding: 18px;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .float-sidebar {
    display: none;
  }

  .cta-form {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-form input,
  .cta-form .btn {
    width: 100%;
  }

  .join-cta-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .join-cta-copy {
    text-align: center;
  }

  .join-cta-copy .cta-contact {
    justify-content: center;
  }
}

/* 小屏手机：首屏二维码区改为上下堆叠，避免横向溢出 */
@media (max-width: 640px) {
  .hero-qr-section {
    flex-direction: column;
    gap: 18px;
  }

  .hero-platforms {
    width: 100%;
    max-width: 320px;
  }

  .hero-title {
    font-size: 30px;
  }
}

/* 移动端菜单 */
.mobile-nav {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 20px;
  z-index: 999;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.mobile-nav.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav a {
  display: block;
  padding: 12px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.mobile-nav a:last-child {
  border-bottom: none;
}

.mobile-nav a:hover {
  color: var(--primary-blue);
}