/* ============================================
   GEO官网 - 主样式文件（浅色科技风）
   ============================================ */

/* 底部选项卡样式修复 - 确保高度与其他页面统一 */
.geo-page .fo-lxnk {
    padding: 40px 0 45px;
}
.geo-page .fo-addk .tab-foad .tab_menu-foad {
    margin-bottom: 4px;
}
.geo-page .fo-addk .tab-foad .tab_menu-foad li {
    height: 32px;
    line-height: 32px;
    font-size: 16px;
}
.geo-page .fo-addk .tab-foad .tab_box-foad {
    height: 50px;
    line-height: 50px;
}
.geo-page .fo-addk .tab_box-foad .div-foad p {
    display: flex;
    align-items: center;
    height: 50px;
    line-height: 50px;
}

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --accent: #06b6d4;
  --accent2: #8b5cf6;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;

  --bg: #ffffff;
  --bg2: #edf2f7;
  --bg3: #f1f5f9;
  --bg4: #e2e8f0;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-light: #cbd5e1;

  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --card-bg: #ffffff;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
  --card-shadow-hover: 0 12px 40px rgba(37,99,235,0.10), 0 4px 12px rgba(0,0,0,0.05);

  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}
.section { padding: 100px 0; position: relative; overflow: hidden; }
.section-sm { padding: 60px 0; }

.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid var(--primary-100);
  background: var(--primary-50);
  color: var(--primary);
  margin-bottom: 16px;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50% { opacity:0.4; transform:scale(1.5); }
}

.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
  color: var(--text-primary);
}
.section-header p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

.section-num {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--primary-light);
  text-transform: uppercase;
  margin-bottom: 10px;
  opacity: 0.7;
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0;
}

/* ---- 网格背景（浅色版更淡） ---- */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.018) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* ====================================
   导航栏
   ==================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.brand-logo {
  width: 36px; height: 36px;
  border-radius: 10px;
  object-fit: contain;
  display: block;
}
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.navbar-nav a {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.navbar-nav a:hover { color: var(--primary); }
.navbar-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transform: scaleX(0);
  transition: var(--transition);
}
.navbar-nav a:hover::after { transform: scaleX(1); }
.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-left: 4px;
  white-space: nowrap;
}
.nav-phone i {
  font-size: 13px;
}
.navbar-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37,99,235,0.25);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  background: var(--bg2);
  border-color: var(--primary-100);
  transform: translateY(-1px);
}
.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: 14px;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  z-index: 999;
  flex-direction: column;
  gap: 16px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 16px;
  color: var(--text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}
.mobile-menu a:hover { color: var(--primary); }

/* ====================================
   英雄区 Hero
   ==================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
}
.hero-glow {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}
.hero-glow-1 {
  top: -20%; left: -10%;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, transparent 70%);
}
.hero-glow-2 {
  bottom: -20%; right: -10%;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.08) 0%, transparent 70%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}
.hero-content { max-width: 560px; }
.hero-content h1 {
  font-size: clamp(32px, 4.5vw, 54px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text-primary);
}
.hero-content p.subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.hero-stat-num {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ---- 右侧轮播区 ---- */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.carousel-wrap {
  position: relative;
  width: 480px;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.carousel-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 150px; height: 150px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
  border: 2px solid var(--primary-100);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  text-align: center;
  box-shadow: 0 8px 32px rgba(37,99,235,0.12), inset 0 0 0 1px rgba(255,255,255,0.8);
}
.carousel-center .center-logo {
  width: 44px; height: 44px;
  margin-bottom: 6px;
}
.carousel-center .center-logo svg { width: 100%; height: 100%; }
.carousel-center-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  transition: var(--transition);
}
.carousel-center-tag {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}
/* 轨道装饰环 */
.orbit-ring {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  border-radius: 50%;
  border: 1px dashed var(--border);
  pointer-events: none;
}
.orbit-ring-1 { width: 230px; height: 230px; }
.orbit-ring-2 { width: 350px; height: 350px; }
.orbit-ring-3 { width: 460px; height: 460px; border-style: solid; border-color: var(--border-light); }
/* 轨道节点 */
.orbit {
  position: absolute;
  inset: 0;
  animation: orbit-spin 30s linear infinite;
}
.orbit-item {
  position: absolute;
  top: 50%; left: 50%;
  width: 72px; height: 72px;
  margin-left: -36px;
  margin-top: -36px;
  transform: translate(var(--tx, 0px), var(--ty, 0px));
  z-index: 5;
}
.orbit-item-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}
.orbit-item-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  animation: orbit-counter 30s linear infinite;
}
.orbit-item:hover .orbit-item-inner {
  background: var(--bg);
  border-color: var(--primary-100);
  transform: scale(1.1);
  box-shadow: var(--card-shadow-hover);
}
.orbit-item.active .orbit-item-inner {
  border-color: var(--primary);
  background: var(--primary-50);
  box-shadow: 0 0 24px rgba(37,99,235,0.15);
}
.orbit-item .ai-logo {
  width: 28px; height: 28px;
}
.orbit-item .ai-logo svg { width: 100%; height: 100%; }
.orbit-item .ai-name { font-size: 10px; color: var(--text-muted); font-weight: 600; }
.orbit-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.08), transparent 70%);
  pointer-events: none;
  animation: glow-pulse 3s ease-in-out infinite;
}
@keyframes orbit-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes orbit-counter {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}
@keyframes glow-pulse {
  0%,100% { opacity: 0.5; transform: translate(-50%,-50%) scale(1); }
  50%    { opacity: 1; transform: translate(-50%,-50%) scale(1.15); }
}

/* ====================================
   功能卡片
   ==================================== */
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-100), transparent);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: var(--primary-100);
  background: var(--bg);
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.feature-card ul {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feature-card ul li {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.feature-card ul li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary-light);
  margin-top: 6px;
  flex-shrink: 0;
}
/* 图标色 */
.ic-blue  { background: var(--primary-50); color: var(--primary); }
.ic-cyan  { background: rgba(6,182,212,0.08); color: var(--accent); }
.ic-purple{ background: rgba(139,92,246,0.08); color: var(--accent2); }
.ic-green { background: rgba(34,197,94,0.08); color: var(--success); }
.ic-orange{ background: rgba(249,115,22,0.08); color: var(--warning); }
.ic-pink  { background: rgba(236,72,153,0.08); color: #ec4899; }
.ic-teal  { background: rgba(20,184,166,0.08); color: #14b8a6; }
.ic-yellow{ background: rgba(234,179,8,0.08); color: #eab308; }
.ic-red   { background: rgba(239,68,68,0.08); color: var(--danger); }

/* ====================================
   模块一：AI诊断（浅色）
   ==================================== */
.diagnosis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.diagnosis-left h2 {
  font-size: clamp(26px,3.5vw,40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
  color: var(--text-primary);
}
.diagnosis-left > p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}
.diagnosis-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}
.diagnosis-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 10px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.diagnosis-step:hover {
  background: var(--bg);
  border-color: var(--border-light);
}
.step-num {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 1px;
}
.step-info h4 { font-size: 14px; font-weight: 600; margin-bottom: 2px; color: var(--text-primary); }
.step-info p { font-size: 12px; color: var(--text-muted); line-height: 1.5; }
.step-connector {
  width: 1px;
  height: 14px;
  background: linear-gradient(180deg, var(--primary-100), transparent);
  margin: 2px 0 2px 17px;
}
.platform-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.platform-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.platform-pill:hover,
.platform-pill.active {
  border-color: var(--primary);
  background: var(--primary-50);
  color: var(--primary);
}
.platform-pill .pill-logo {
  width: 14px; height: 14px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  font-weight: 700;
  color: #fff;
}

.diagnosis-demo {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.demo-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 10px;
}
.demo-dots { display: flex; gap: 6px; }
.demo-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.demo-dot-r { background: #ff5f56; }
.demo-dot-y { background: #febc2e; }
.demo-dot-g { background: #28c840; }
.demo-title { font-size: 13px; color: var(--text-muted); margin-left: 8px; }
.demo-body { padding: 20px; }
.demo-input-row {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.demo-input {
  flex: 1;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}
.demo-input:focus { border-color: var(--primary-light); box-shadow: 0 0 0 3px var(--primary-50); }
.demo-btn {
  padding: 10px 18px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}
.demo-btn:hover { background: var(--primary-dark); }
.demo-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--bg2);
  border: 1px solid var(--border-light);
  margin-bottom: 8px;
}
.result-platform { font-size: 13px; font-weight: 600; color: var(--text-primary); display:flex;align-items:center;gap:6px; }
.result-platform .mini-logo { width: 16px; height: 16px; }
.result-bar-wrap { flex: 1; margin: 0 14px; }
.result-bar {
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  overflow: hidden;
}
.result-bar-fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.result-score { font-size: 13px; font-weight: 700; color: var(--primary); }
.result-suggest {
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.result-suggest strong { color: var(--primary); display: block; margin-bottom: 4px; }

/* ====================================
   模块二：AI素材库（深色）
   ==================================== */
#materials { background: var(--bg2); }
.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* ====================================
   模块三：AI文章写作（浅色）
   ==================================== */
.writing-header {
  text-align: center;
  margin-bottom: 48px;
}
.writing-header h2 {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  line-height: 1.2;
  color: var(--text-primary);
}
.writing-header p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}
.writing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}
.writing-grid > .fade-in {
  display: flex;
  flex-direction: column;
}
.writing-grid .writing-demo-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.writing-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  height: 100%;
}
.writing-features .feature-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.writing-demo-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
}
.writing-demo-title {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.writing-line {
  height: 8px;
  border-radius: 4px;
  background: var(--border-light);
  margin-bottom: 8px;
}
.writing-line.w-full { width: 100%; }
.writing-line.w-8 { width: 80%; }
.writing-line.w-9 { width: 90%; }
.writing-line.w-6 { width: 60%; }
.writing-line.w-7 { width: 70%; }
.writing-line.accent { background: var(--primary-100); }

/* ====================================
   模块四：AI流量复刻（深色）
   ==================================== */
#replicate { background: var(--bg2); }
.replicate-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

/* ====================================
   模块五：媒体发布（浅色）
   ==================================== */
.media-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.media-tab {
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.media-tab.active,
.media-tab:hover {
  background: var(--primary-50);
  border-color: var(--primary-100);
  color: var(--primary);
}
.media-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.media-logo-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: default;
  font-weight: 500;
}
.media-logo-tag:hover {
  border-color: var(--primary-100);
  color: var(--primary);
  background: var(--bg);
  transform: translateY(-1px);
}
.media-panel { display: none; }
.media-panel.active { display: flex; flex-direction: column; gap: 20px; }

/* ====================================
   模块六：AI官网SEO（深色）
   ==================================== */
#seo { background: var(--bg2); }
.seo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.seo-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.cms-logos {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.cms-tag {
  padding: 8px 20px;
  border-radius: 10px;
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

/* ====================================
   模块七：AI工具助手（浅色）
   ==================================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 28px;
}

/* ====================================
   模块八：收录查询（深色）
   ==================================== */
#monitor { background: var(--bg2); }
.monitor-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
}
.monitor-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
.monitor-table th {
  padding: 14px 20px;
  background: var(--bg2);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.monitor-table td {
  padding: 14px 20px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}
.monitor-table tr:last-child td { border-bottom: none; }
.monitor-table tr:hover td { background: var(--bg2); }
.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
}
.status-dot::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
}
.status-high::before { background: var(--success); }
.status-mid::before { background: var(--warning); }
.status-low::before { background: var(--danger); }
.status-high { color: var(--success); }
.status-mid { color: var(--warning); }
.status-low { color: var(--danger); }

/* ====================================
   CTA区块
   ==================================== */
.cta-section {
  position: relative;
  overflow: hidden;
  padding: 120px 0;
  text-align: center;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
}
.cta-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(37,99,235,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section h2 {
  font-size: clamp(30px,4vw,52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.cta-section p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ====================================
   Footer
   ==================================== */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 12px;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ====================================
   滚动动画
   ==================================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ====================================
   响应式
   ==================================== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .carousel-wrap { width: 400px; height: 400px; }
  .orbit-ring-3 { width: 380px; height: 380px; }
  .orbit-ring-2 { width: 280px; height: 280px; }
  .orbit-ring-1 { width: 190px; height: 190px; }
  .diagnosis-grid, .writing-grid, .seo-grid { grid-template-columns: 1fr; }
  .materials-grid { grid-template-columns: repeat(2,1fr); }
  .tools-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 1024px) {
  .nav-phone { display: none; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .navbar-nav, .navbar-cta { display: none; }
  .hamburger { display: flex; }
  .carousel-wrap { width: 320px; height: 320px; }
  .orbit-ring-3 { width: 300px; height: 300px; }
  .orbit-ring-2 { width: 220px; height: 220px; }
  .orbit-ring-1 { width: 150px; height: 150px; }
  .carousel-center { width: 110px; height: 110px; }
  .carousel-center .center-logo { width: 32px; height: 32px; }
  .carousel-center-name { font-size: 13px; }
  .orbit-item { width: 56px; height: 56px; margin-left:-28px;margin-top:-28px; }
  .orbit-item .ai-logo { width: 22px; height: 22px; }
  .materials-grid { grid-template-columns: 1fr 1fr; }
  .replicate-grid { grid-template-columns: 1fr; }
  .writing-features { grid-template-columns: 1fr; }
  .tools-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .seo-features { grid-template-columns: 1fr; }
  .demo-input-row { flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .carousel-wrap { width: 280px; height: 280px; }
  .orbit-ring-3 { width: 260px; height: 260px; }
  .media-logos { gap: 8px; }
  .media-logo-tag { font-size: 12px; padding: 5px 12px; }
}

/* 移动端统计卡片布局优化 - 收录查询区域 */
@media (max-width: 768px) {
  #monitor .fade-in[style*="grid-template-columns:repeat(4,1fr)"] {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

/* ====================================
   额外动画
   ==================================== */
@keyframes shimmer {
  from { background-position: -200% 0; }
  to   { background-position: 200% 0; }
}
.shimmer {
  background: linear-gradient(90deg,
    rgba(37,99,235,0.03) 25%,
    rgba(37,99,235,0.10) 50%,
    rgba(37,99,235,0.03) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.text-animated-gradient {
  background: linear-gradient(135deg, #3b82f6, #06b6d4, #8b5cf6, #3b82f6);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease infinite;
}

/* ====================================
   Section 科技感动画背景（大而简约）
   ==================================== */
.section-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
/* 清除默认 ::before */
.section-bg::before { content: none; }
.section-bg::after { content: none; }

/* ---- 通用缓动动画 ---- */
@keyframes bg-drift-1 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(30px,-20px) scale(1.06); }
}
@keyframes bg-drift-2 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(-25px,30px) scale(1.04); }
}
@keyframes bg-drift-slow {
  0%,100% { transform: translate(0,0); }
  50%     { transform: translate(15px,10px); }
}
@keyframes bg-pulse-soft {
  0%,100% { opacity: 0.5; transform: translate(-50%,-50%) scale(1); }
  50%     { opacity: 0.8; transform: translate(-50%,-50%) scale(1.08); }
}
@keyframes bg-radar-scan {
  0%,100% { transform: translate(0,0) scale(1); opacity: 0.8; }
  50%     { transform: translate(12px,-10px) scale(1.03); opacity: 1; }
}
@keyframes bg-constellation-twinkle {
  0%,100% { transform: translate(0,0); opacity: 0.85; }
  50%     { transform: translate(-8px,12px); opacity: 1; }
}
@keyframes bg-chart-rise {
  0%,100% { transform: translate(0,0); }
  33%     { transform: translate(5px,-8px); }
  66%     { transform: translate(-5px,-4px); }
}

/* ============================================
   模块1 · AI诊断 — 声呐雷达扫描 + 蓝青信号
   ============================================ */
.diagnosis-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 800'%3E%3Ccircle cx='80' cy='720' r='130' fill='none' stroke='rgba(37,99,235,0.07)' stroke-width='1'/%3E%3Ccircle cx='80' cy='720' r='270' fill='none' stroke='rgba(37,99,235,0.055)' stroke-width='1'/%3E%3Ccircle cx='80' cy='720' r='420' fill='none' stroke='rgba(37,99,235,0.04)' stroke-width='1'/%3E%3Ccircle cx='80' cy='720' r='580' fill='none' stroke='rgba(37,99,235,0.028)' stroke-width='1'/%3E%3Ccircle cx='80' cy='720' r='760' fill='none' stroke='rgba(37,99,235,0.018)' stroke-width='0.5'/%3E%3Cline x1='80' y1='0' x2='80' y2='720' stroke='rgba(37,99,235,0.025)' stroke-width='0.5'/%3E%3Cline x1='80' y1='720' x2='840' y2='720' stroke='rgba(37,99,235,0.025)' stroke-width='0.5'/%3E%3Cline x1='80' y1='720' x2='780' y2='80' stroke='rgba(6,182,212,0.09)' stroke-width='1.5'/%3E%3Cline x1='80' y1='720' x2='620' y2='180' stroke='rgba(6,182,212,0.04)' stroke-width='0.8'/%3E%3Ccircle cx='280' cy='540' r='4' fill='rgba(37,99,235,0.18)'/%3E%3Ccircle cx='280' cy='540' r='11' fill='none' stroke='rgba(37,99,235,0.06)' stroke-width='0.5'/%3E%3Ccircle cx='430' cy='400' r='3' fill='rgba(6,182,212,0.22)'/%3E%3Ccircle cx='430' cy='400' r='8' fill='none' stroke='rgba(6,182,212,0.07)' stroke-width='0.5'/%3E%3Ccircle cx='520' cy='610' r='5' fill='rgba(37,99,235,0.14)'/%3E%3Ccircle cx='520' cy='610' r='13' fill='none' stroke='rgba(37,99,235,0.05)' stroke-width='0.5'/%3E%3Ccircle cx='180' cy='460' r='3' fill='rgba(6,182,212,0.16)'/%3E%3Ccircle cx='180' cy='460' r='7' fill='none' stroke='rgba(6,182,212,0.05)' stroke-width='0.5'/%3E%3Ccircle cx='650' cy='280' r='4' fill='rgba(37,99,235,0.12)'/%3E%3Ccircle cx='650' cy='280' r='10' fill='none' stroke='rgba(37,99,235,0.04)' stroke-width='0.5'/%3E%3Ccircle cx='380' cy='300' r='3.5' fill='rgba(6,182,212,0.14)'/%3E%3Ccircle cx='380' cy='300' r='9' fill='none' stroke='rgba(6,182,212,0.05)' stroke-width='0.5'/%3E%3C/svg%3E") no-repeat left bottom / cover;
  animation: bg-radar-scan 12s ease-in-out infinite;
}
.diagnosis-bg::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.06) 0%, rgba(37,99,235,0.04) 40%, transparent 65%);
  top: -15%; right: -8%;
  animation: bg-drift-1 10s ease-in-out infinite;
}

/* ============================================
   模块2 · AI素材库 — 大圆环几何 + 紫青渐变
   ============================================ */
.materials-bg::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  border: 2px solid rgba(139,92,246,0.06);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation: bg-pulse-soft 8s ease-in-out infinite;
}
.materials-bg::after {
  content: '';
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  border: 1.5px solid rgba(6,182,212,0.06);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation: bg-pulse-soft 6s ease-in-out infinite reverse;
}
#materials::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 70%, rgba(139,92,246,0.05) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(6,182,212,0.04) 0%, transparent 40%);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  z-index: 0;
}

/* ============================================
   模块3 · AI文章写作 — 粒子星座网络 + 紫粉星云
   ============================================ */
.writing-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 800'%3E%3Ccircle cx='150' cy='160' r='5' fill='rgba(139,92,246,0.25)'/%3E%3Ccircle cx='150' cy='160' r='14' fill='none' stroke='rgba(139,92,246,0.08)'/%3E%3Ccircle cx='340' cy='110' r='3.5' fill='rgba(99,102,241,0.22)'/%3E%3Ccircle cx='340' cy='110' r='10' fill='none' stroke='rgba(99,102,241,0.06)'/%3E%3Ccircle cx='520' cy='190' r='4.5' fill='rgba(139,92,246,0.23)'/%3E%3Ccircle cx='520' cy='190' r='12' fill='none' stroke='rgba(139,92,246,0.07)'/%3E%3Ccircle cx='720' cy='120' r='6' fill='rgba(236,72,153,0.2)'/%3E%3Ccircle cx='720' cy='120' r='16' fill='none' stroke='rgba(236,72,153,0.06)'/%3E%3Ccircle cx='900' cy='200' r='3.5' fill='rgba(139,92,246,0.18)'/%3E%3Ccircle cx='900' cy='200' r='10' fill='none' stroke='rgba(139,92,246,0.06)'/%3E%3Ccircle cx='1070' cy='140' r='4' fill='rgba(99,102,241,0.2)'/%3E%3Ccircle cx='1070' cy='140' r='11' fill='none' stroke='rgba(99,102,241,0.07)'/%3E%3Ccircle cx='230' cy='380' r='3.5' fill='rgba(139,92,246,0.16)'/%3E%3Ccircle cx='230' cy='380' r='10' fill='none' stroke='rgba(139,92,246,0.05)'/%3E%3Ccircle cx='420' cy='330' r='5' fill='rgba(236,72,153,0.2)'/%3E%3Ccircle cx='420' cy='330' r='14' fill='none' stroke='rgba(236,72,153,0.06)'/%3E%3Ccircle cx='640' cy='370' r='4' fill='rgba(139,92,246,0.2)'/%3E%3Ccircle cx='640' cy='370' r='12' fill='none' stroke='rgba(139,92,246,0.06)'/%3E%3Ccircle cx='850' cy='340' r='5.5' fill='rgba(99,102,241,0.22)'/%3E%3Ccircle cx='850' cy='340' r='15' fill='none' stroke='rgba(99,102,241,0.07)'/%3E%3Ccircle cx='1030' cy='380' r='3' fill='rgba(139,92,246,0.15)'/%3E%3Ccircle cx='1030' cy='380' r='9' fill='none' stroke='rgba(139,92,246,0.05)'/%3E%3Ccircle cx='180' cy='580' r='4' fill='rgba(99,102,241,0.16)'/%3E%3Ccircle cx='180' cy='580' r='11' fill='none' stroke='rgba(99,102,241,0.05)'/%3E%3Ccircle cx='380' cy='560' r='3.5' fill='rgba(139,92,246,0.18)'/%3E%3Ccircle cx='380' cy='560' r='10' fill='none' stroke='rgba(139,92,246,0.06)'/%3E%3Ccircle cx='580' cy='610' r='5' fill='rgba(236,72,153,0.16)'/%3E%3Ccircle cx='580' cy='610' r='13' fill='none' stroke='rgba(236,72,153,0.05)'/%3E%3Ccircle cx='780' cy='540' r='3.5' fill='rgba(139,92,246,0.2)'/%3E%3Ccircle cx='780' cy='540' r='10' fill='none' stroke='rgba(139,92,246,0.06)'/%3E%3Ccircle cx='980' cy='590' r='4' fill='rgba(99,102,241,0.18)'/%3E%3Ccircle cx='980' cy='590' r='11' fill='none' stroke='rgba(99,102,241,0.06)'/%3E%3Cline x1='150' y1='160' x2='340' y2='110' stroke='rgba(139,92,246,0.06)' stroke-width='0.8'/%3E%3Cline x1='340' y1='110' x2='520' y2='190' stroke='rgba(139,92,246,0.05)' stroke-width='0.8'/%3E%3Cline x1='520' y1='190' x2='720' y2='120' stroke='rgba(139,92,246,0.05)' stroke-width='0.8'/%3E%3Cline x1='720' y1='120' x2='900' y2='200' stroke='rgba(139,92,246,0.04)' stroke-width='0.8'/%3E%3Cline x1='900' y1='200' x2='1070' y2='140' stroke='rgba(139,92,246,0.04)' stroke-width='0.8'/%3E%3Cline x1='150' y1='160' x2='230' y2='380' stroke='rgba(99,102,241,0.04)' stroke-width='0.8'/%3E%3Cline x1='230' y1='380' x2='420' y2='330' stroke='rgba(139,92,246,0.04)' stroke-width='0.8'/%3E%3Cline x1='420' y1='330' x2='640' y2='370' stroke='rgba(236,72,153,0.04)' stroke-width='0.8'/%3E%3Cline x1='640' y1='370' x2='850' y2='340' stroke='rgba(99,102,241,0.04)' stroke-width='0.8'/%3E%3Cline x1='850' y1='340' x2='1030' y2='380' stroke='rgba(139,92,246,0.035)' stroke-width='0.8'/%3E%3Cline x1='230' y1='380' x2='180' y2='580' stroke='rgba(99,102,241,0.03)' stroke-width='0.8'/%3E%3Cline x1='420' y1='330' x2='380' y2='560' stroke='rgba(139,92,246,0.03)' stroke-width='0.8'/%3E%3Cline x1='640' y1='370' x2='580' y2='610' stroke='rgba(236,72,153,0.03)' stroke-width='0.8'/%3E%3Cline x1='850' y1='340' x2='780' y2='540' stroke='rgba(139,92,246,0.03)' stroke-width='0.8'/%3E%3Cline x1='780' y1='540' x2='980' y2='590' stroke='rgba(99,102,241,0.03)' stroke-width='0.8'/%3E%3Cline x1='340' y1='110' x2='420' y2='330' stroke='rgba(139,92,246,0.025)' stroke-width='0.6'/%3E%3Cline x1='520' y1='190' x2='640' y2='370' stroke='rgba(139,92,246,0.025)' stroke-width='0.6'/%3E%3Cline x1='720' y1='120' x2='850' y2='340' stroke='rgba(99,102,241,0.025)' stroke-width='0.6'/%3E%3C/svg%3E") no-repeat center / cover;
  animation: bg-constellation-twinkle 14s ease-in-out infinite;
}
.writing-bg::after {
  content: '';
  position: absolute;
  width: 520px; height: 520px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 40%, rgba(139,92,246,0.07) 0%, transparent 45%),
    radial-gradient(circle at 70% 60%, rgba(236,72,153,0.05) 0%, transparent 40%);
  bottom: -20%; left: -10%;
  animation: bg-drift-2 11s ease-in-out infinite;
}

/* ============================================
   模块4 · AI流量复刻 — 放射爆发几何 + 橙光晕
   ============================================ */
.replicate-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 800'%3E%3Ccircle cx='1050' cy='400' r='300' fill='none' stroke='rgba(249,115,22,0.04)' stroke-width='2'/%3E%3Ccircle cx='1050' cy='400' r='200' fill='none' stroke='rgba(249,115,22,0.03)' stroke-width='1.5'/%3E%3Ccircle cx='1050' cy='400' r='100' fill='none' stroke='rgba(236,72,153,0.04)' stroke-width='1'/%3E%3Cline x1='1050' y1='50' x2='1050' y2='750' stroke='rgba(249,115,22,0.025)' stroke-width='1'/%3E%3Cline x1='700' y1='400' x2='1400' y2='400' stroke='rgba(249,115,22,0.025)' stroke-width='1'/%3E%3Cline x1='800' y1='150' x2='1300' y2='650' stroke='rgba(236,72,153,0.02)' stroke-width='1'/%3E%3Cline x1='800' y1='650' x2='1300' y2='150' stroke='rgba(236,72,153,0.02)' stroke-width='1'/%3E%3C/svg%3E") no-repeat center / cover;
}
.replicate-bg::after {
  content: '';
  position: absolute;
  width: 350px; height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(249,115,22,0.08) 0%, transparent 55%);
  top: 50%; right: -5%;
  transform: translateY(-50%);
  animation: bg-drift-1 9s ease-in-out infinite;
}

/* ============================================
   模块5 · 媒体发布 — 大同心扩散圆环 + 青光
   ============================================ */
.media-bg::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  border: 1.5px solid rgba(6,182,212,0.07);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation: bg-pulse-soft 6s ease-in-out infinite;
}
.media-bg::after {
  content: '';
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  border: 1px dashed rgba(37,99,235,0.05);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation: bg-pulse-soft 8s ease-in-out infinite 1s;
}
.media-section::before {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.04) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(139,92,246,0.03) 0%, transparent 35%);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  z-index: 0;
}

/* ============================================
   模块6 · AI官网SEO — 增长数据面板 + 绿光跃升
   ============================================ */
.seo-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 800'%3E%3Cline x1='80' y1='200' x2='1120' y2='200' stroke='rgba(34,197,94,0.035)' stroke-width='0.5' stroke-dasharray='4 8'/%3E%3Cline x1='80' y1='350' x2='1120' y2='350' stroke='rgba(34,197,94,0.03)' stroke-width='0.5' stroke-dasharray='4 8'/%3E%3Cline x1='80' y1='500' x2='1120' y2='500' stroke='rgba(34,197,94,0.025)' stroke-width='0.5' stroke-dasharray='4 8'/%3E%3Cline x1='80' y1='650' x2='1120' y2='650' stroke='rgba(34,197,94,0.02)' stroke-width='0.5' stroke-dasharray='4 8'/%3E%3Crect x='140' y='650' width='28' height='150' rx='4' fill='rgba(34,197,94,0.025)'/%3E%3Crect x='220' y='610' width='28' height='190' rx='4' fill='rgba(34,197,94,0.03)'/%3E%3Crect x='300' y='560' width='28' height='240' rx='4' fill='rgba(34,197,94,0.025)'/%3E%3Crect x='380' y='510' width='28' height='290' rx='4' fill='rgba(34,197,94,0.03)'/%3E%3Crect x='460' y='450' width='28' height='350' rx='4' fill='rgba(34,197,94,0.025)'/%3E%3Crect x='540' y='400' width='28' height='400' rx='4' fill='rgba(34,197,94,0.03)'/%3E%3Crect x='620' y='340' width='28' height='460' rx='4' fill='rgba(34,197,94,0.025)'/%3E%3Crect x='700' y='280' width='28' height='520' rx='4' fill='rgba(34,197,94,0.03)'/%3E%3Crect x='780' y='230' width='28' height='570' rx='4' fill='rgba(34,197,94,0.025)'/%3E%3Crect x='860' y='180' width='28' height='620' rx='4' fill='rgba(34,197,94,0.03)'/%3E%3Crect x='940' y='150' width='28' height='650' rx='4' fill='rgba(34,197,94,0.025)'/%3E%3Crect x='1020' y='110' width='28' height='690' rx='4' fill='rgba(34,197,94,0.035)'/%3E%3Cpath d='M140 700 Q250 680 350 620 T550 470 T750 310 T950 180 T1100 120 L1100 800 L140 800 Z' fill='rgba(34,197,94,0.015)'/%3E%3Cpath d='M140 700 Q250 680 350 620 T550 470 T750 310 T950 180 T1100 120' fill='none' stroke='rgba(34,197,94,0.08)' stroke-width='2.5' stroke-linecap='round'/%3E%3Cpath d='M140 740 Q280 710 420 640 T620 490 T820 340 T1020 210 T1120 160' fill='none' stroke='rgba(6,182,212,0.04)' stroke-width='1.5' stroke-linecap='round'/%3E%3Ccircle cx='350' cy='620' r='7' fill='rgba(34,197,94,0.1)'/%3E%3Ccircle cx='350' cy='620' r='3.5' fill='rgba(34,197,94,0.22)'/%3E%3Ccircle cx='550' cy='470' r='7' fill='rgba(34,197,94,0.1)'/%3E%3Ccircle cx='550' cy='470' r='3.5' fill='rgba(34,197,94,0.22)'/%3E%3Ccircle cx='750' cy='310' r='7' fill='rgba(34,197,94,0.1)'/%3E%3Ccircle cx='750' cy='310' r='3.5' fill='rgba(34,197,94,0.22)'/%3E%3Ccircle cx='950' cy='180' r='7' fill='rgba(34,197,94,0.1)'/%3E%3Ccircle cx='950' cy='180' r='3.5' fill='rgba(34,197,94,0.22)'/%3E%3Cpath d='M1060 100 L1080 60 L1100 100' fill='none' stroke='rgba(34,197,94,0.1)' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cline x1='1080' y1='60' x2='1080' y2='30' stroke='rgba(34,197,94,0.06)' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / cover;
  animation: bg-chart-rise 10s ease-in-out infinite;
}
.seo-bg::after {
  content: '';
  position: absolute;
  width: 450px; height: 450px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 40% 40%, rgba(34,197,94,0.08) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(6,182,212,0.05) 0%, transparent 40%);
  top: -10%; right: -5%;
  animation: bg-drift-1 10s ease-in-out infinite;
}

/* ============================================
   模块7 · AI工具助手 — 大六边形线框 + 靛蓝光晕
   ============================================ */
.tools-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 800'%3E%3Cpolygon points='600,100 900,250 900,550 600,700 300,550 300,250' fill='none' stroke='rgba(99,102,241,0.04)' stroke-width='1.5'/%3E%3Cpolygon points='600,200 800,310 800,490 600,600 400,490 400,310' fill='none' stroke='rgba(99,102,241,0.03)' stroke-width='1'/%3E%3Ccircle cx='600' cy='400' r='60' fill='none' stroke='rgba(6,182,212,0.03)' stroke-width='1'/%3E%3C/svg%3E") no-repeat center / cover;
}
.tools-bg::after {
  content: '';
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.06) 0%, transparent 55%);
  bottom: -10%; left: 5%;
  animation: bg-drift-2 12s ease-in-out infinite;
}

/* ============================================
   模块8 · 收录查询 — 长波形线 + 青色光晕
   ============================================ */
.monitor-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 800'%3E%3Cpath d='M0 500 Q150 420 300 480 T600 440 T900 490 T1200 450' fill='none' stroke='rgba(6,182,212,0.05)' stroke-width='2' stroke-linecap='round'/%3E%3Cpath d='M0 580 Q150 520 300 560 T600 530 T900 570 T1200 540' fill='none' stroke='rgba(37,99,235,0.035)' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center / cover;
  animation: bg-drift-slow 8s ease-in-out infinite;
}
.monitor-bg::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.07) 0%, transparent 55%);
  top: 50%; right: -5%;
  transform: translateY(-50%);
  animation: bg-drift-1 9s ease-in-out infinite;
}