:root {
  --primary: #1a56db;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --secondary: #64748b;
  --dark: #0f172a;
  --gray-900: #1e293b;
  --gray-800: #334155;
  --gray-700: #475569;
  --gray-600: #64748b;
  --gray-500: #94a3b8;
  --gray-400: #cbd5e1;
  --gray-300: #e2e8f0;
  --gray-200: #f1f5f9;
  --gray-100: #f8fafc;
  --white: #ffffff;
  --accent: #06b6d4;
  --gradient-start: #1e3a8a;
  --gradient-end: #0e7490;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--gray-800);
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
  height: auto;
}

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

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.nav-logo i {
  font-size: 40px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-menu a {
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-700);
  transition: color 0.2s;
  position: relative;
}

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

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--primary);
}

.btn-white:hover {
  background: var(--gray-100);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-800);
  transition: all 0.3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
  min-height: auto;
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  position: relative;
  overflow: visible;
  padding: 100px 0 60px;
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

/* 高科技网格暗纹 */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px),
    radial-gradient(circle at 20% 30%, rgba(59,130,246,0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(6,182,212,0.2) 0%, transparent 40%);
  background-size: 50px 50px, 50px 50px, 100% 100%, 100% 100%;
  animation: gridMove 20s linear infinite;
}

/* 浮动光点 */
.hero-bg::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.5), transparent),
    radial-gradient(2px 2px at 60% 70%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 50% 50%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 80% 10%, rgba(6,182,212,0.8), transparent),
    radial-gradient(2px 2px at 90% 60%, rgba(59,130,246,0.6), transparent),
    radial-gradient(1px 1px at 33% 80%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 15% 50%, rgba(34,211,238,0.7), transparent);
  background-size: 100% 100%;
  animation: twinkle 4s ease-in-out infinite alternate;
}

/* 浮动装饰球 */
.hero::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(34,211,238,0.12) 0%, transparent 70%);
  top: 20%;
  right: -100px;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
  z-index: 0;
}

@keyframes gridMove {
  0% { background-position: 0 0, 0 0, 0 0, 0 0; }
  100% { background-position: 50px 50px, 50px 50px, 0 0, 0 0; }
}

@keyframes twinkle {
  0% { opacity: 0.6; }
  100% { opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
  padding: 80px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255,255,255,0.15);
  border-radius: 999px;
  font-size: 14px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-badge i {
  color: var(--accent);
  font-size: 20px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #06b6d4 0%, #22d3ee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 20px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat {
  text-align: center;
  padding: 20px 28px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.hero-stat:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
}

.hero-stat .number {
  font-size: 36px;
  font-weight: 800;
  color: var(--white);
  display: inline-block;
}

.hero-stat .label {
  font-size: 13px;
  color: rgba(255,255,255,0.75);
  margin-top: 4px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-slider {
  position: relative;
  width: 100%;
  padding: 0 56px;
  z-index: 2;
}

.slides-wrapper {
  position: relative;
  width: 100%;
  z-index: 1;
}

.slide {
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 0;
  overflow: hidden;
  z-index: 1;
}

.slide.active {
  opacity: 1;
  visibility: visible;
  height: auto;
  overflow: visible;
  z-index: 2;
}

.slide-content {
  text-align: center;
  color: var(--white);
  padding: 20px 24px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.slide-content h1 {
  font-size: 44px;
  font-weight: 800;
  margin-bottom: 20px;
}

.slide-content p {
  font-size: 18px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

/* 白色描边按钮 */
.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}

/* 轮播切换按钮 */
.slider-btn {
  position: absolute;
  top: 220px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  border: 2px solid rgba(255,255,255,0.7);
  color: var(--white);
  font-size: 30px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(12px);
  z-index: 100;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.slider-btn:hover {
  background: rgba(255,255,255,0.55);
  transform: scale(1.12);
  box-shadow: 0 8px 28px rgba(0,0,0,0.35);
}

.slider-prev {
  left: 0;
}

.slider-next {
  right: 0;
}

/* 指示点 */
.slider-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  margin-top: 36px;
  padding: 12px 0;
  position: relative;
  z-index: 100;
  clear: both;
}

.dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  border: 2px solid rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
  display: block;
}

.dot.active {
  background: #ffffff;
  width: 36px;
  border-radius: 8px;
  border-color: #ffffff;
  box-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.dot:hover {
  background: rgba(255,255,255,0.8);
  transform: scale(1.1);
}

/* Brand Logo Wall */
.brands {
  padding: 80px 0;
  background: #fafbff;
  position: relative;
}

.brands::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.12), transparent);
}

.brands::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.08), transparent);
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title .badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--white);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-title p {
  font-size: 18px;
  color: var(--gray-600);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.brand-item {
  background: #ffffff;
  border-radius: 10px;
  padding: 28px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 140px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  font-weight: 500;
  color: #475569;
  font-size: 15px;
  border: 1px solid #eef1f6;
  position: relative;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.02);
}

.brand-icon {
  font-size: 36px;
  color: #2563eb;
  line-height: 1;
  transition: transform 0.25s ease, color 0.25s ease;
}

.brand-item:hover {
  transform: translateY(-2px);
  border-color: #c7d4ea;
  box-shadow: 
    0 4px 12px rgba(15, 23, 42, 0.04),
    0 12px 28px rgba(15, 23, 42, 0.06);
  color: #1e293b;
}

.brand-item:hover .brand-icon {
  transform: scale(1.1);
  color: #1d4ed8;
}

/* Products Section */
.products {
  padding: 100px 0;
  background: var(--white);
  position: relative;
  overflow: hidden;
}

.products::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(30,58,138,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,58,138,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  opacity: 0.7;
}

.product-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--white);
  border-radius: 16px;
  padding: 36px 32px;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.product-icon {
  width: 88px;
  height: 88px;
  background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  margin-left: auto;
  margin-right: auto;
  transition: all 0.4s ease;
}

.product-card:hover .product-icon {
  transform: rotate(-6deg) scale(1.08);
  background: linear-gradient(135deg, #dbeafe 0%, #bae6fd 100%);
  box-shadow: 0 8px 24px rgba(59,130,246,0.2);
}

.product-icon i {
  font-size: 44px;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.product-card:hover .product-icon i {
  transform: scale(1.1);
}

.product-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.product-card p {
  font-size: 15px;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 20px;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: gap 0.2s;
}

.product-link:hover {
  gap: 10px;
}

.product-link i {
  font-size: 16px;
  transition: transform 0.2s;
}

.product-card:hover .product-link i {
  transform: translateX(4px);
}

/* ============ 产品卡片多样化主题风格（蓝色系统一） ============ */

/* 红薯侠 - 主蓝 */
.theme-red .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-red .product-icon i {
  color: #1a56db;
}
.theme-red:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(26,86,219,0.25);
}
.theme-red .product-link { color: #1a56db; }
.theme-red:hover { border-color: rgba(26,86,219,0.3); }
.theme-red::before { background: linear-gradient(90deg, #1a56db 0%, #3b82f6 100%); }

/* 超级IP口播 - 深蓝 */
.theme-purple .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-purple .product-icon i {
  color: #1e40af;
}
.theme-purple:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(30,64,175,0.25);
}
.theme-purple .product-link { color: #1e40af; }
.theme-purple:hover { border-color: rgba(30,64,175,0.3); }
.theme-purple::before { background: linear-gradient(90deg, #1e40af 0%, #2563eb 100%); }

/* 混剪智能体 - 亮蓝 */
.theme-orange .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-orange .product-icon i {
  color: #2563eb;
}
.theme-orange:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(37,99,235,0.25);
}
.theme-orange .product-link { color: #2563eb; }
.theme-orange:hover { border-color: rgba(37,99,235,0.3); }
.theme-orange::before { background: linear-gradient(90deg, #2563eb 0%, #3b82f6 100%); }

/* GEO智能搜索 - 天蓝 */
.theme-green .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-green .product-icon i {
  color: #3b82f6;
}
.theme-green:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(59,130,246,0.25);
}
.theme-green .product-link { color: #3b82f6; }
.theme-green:hover { border-color: rgba(59,130,246,0.3); }
.theme-green::before { background: linear-gradient(90deg, #3b82f6 0%, #60a5fa 100%); }

/* 轻播播 - 蔚蓝 */
.theme-pink .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-pink .product-icon i {
  color: #0ea5e9;
}
.theme-pink:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(14,165,233,0.25);
}
.theme-pink .product-link { color: #0ea5e9; }
.theme-pink:hover { border-color: rgba(14,165,233,0.3); }
.theme-pink::before { background: linear-gradient(90deg, #0ea5e9 0%, #38bdf8 100%); }

/* 直播助手 - 青蓝 */
.theme-cyan .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-cyan .product-icon i {
  color: #0284c7;
}
.theme-cyan:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(2,132,199,0.25);
}
.theme-cyan .product-link { color: #0284c7; }
.theme-cyan:hover { border-color: rgba(2,132,199,0.3); }
.theme-cyan::before { background: linear-gradient(90deg, #0284c7 0%, #06b6d4 100%); }

/* 销冠智能体 - 靛蓝 */
.theme-indigo .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-indigo .product-icon i {
  color: #4338ca;
}
.theme-indigo:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(67,56,202,0.25);
}
.theme-indigo .product-link { color: #4338ca; }
.theme-indigo:hover { border-color: rgba(67,56,202,0.3); }
.theme-indigo::before { background: linear-gradient(90deg, #4338ca 0%, #1a56db 100%); }

/* 网站建设 - 海蓝 */
.theme-teal .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-teal .product-icon i {
  color: #0369a1;
}
.theme-teal:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(3,105,161,0.25);
}
.theme-teal .product-link { color: #0369a1; }
.theme-teal:hover { border-color: rgba(3,105,161,0.3); }
.theme-teal::before { background: linear-gradient(90deg, #0369a1 0%, #0ea5e9 100%); }

/* 新媒体代运营 - 宝蓝 */
.theme-amber .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-amber .product-icon i {
  color: #1d4ed8;
}
.theme-amber:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(29,78,216,0.25);
}
.theme-amber .product-link { color: #1d4ed8; }
.theme-amber:hover { border-color: rgba(29,78,216,0.3); }
.theme-amber::before { background: linear-gradient(90deg, #1d4ed8 0%, #3b82f6 100%); }

/* 400电话 - 钢蓝 */
.theme-slate .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.theme-slate .product-icon i {
  color: #1e3a8a;
}
.theme-slate:hover .product-icon {
  background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
  box-shadow: 0 8px 24px rgba(30,58,138,0.25);
}
.theme-slate .product-link { color: #1e3a8a; }
.theme-slate:hover { border-color: rgba(30,58,138,0.3); }
.theme-slate::before { background: linear-gradient(90deg, #1e3a8a 0%, #1e40af 100%); }

/* AI培训学院 - 天空蓝学院风 */
.theme-sky .product-icon {
  background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
}
.theme-sky .product-icon i {
  color: #0284c7;
}
.theme-sky:hover .product-icon {
  background: linear-gradient(135deg, #bae6fd 0%, #7dd3fc 100%);
  box-shadow: 0 8px 24px rgba(2,132,199,0.25);
}
.theme-sky .product-link { color: #0284c7; }
.theme-sky:hover { border-color: rgba(2,132,199,0.3); }
.theme-sky::before { background: linear-gradient(90deg, #0284c7 0%, #38bdf8 100%); }

/* Advantages Section */
.advantages {
  padding: 100px 0;
  background: var(--gray-900);
  color: var(--white);
}

.advantages .section-title h2 {
  color: var(--white);
}

.advantages .section-title p {
  color: var(--gray-400);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.advantage-card {
  text-align: center;
  padding: 40px 28px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s ease;
}

.advantage-card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-4px);
}

.advantage-icon {
  width: 96px;
  height: 96px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  transition: all 0.4s ease;
  position: relative;
}

.advantage-icon::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  opacity: 0.2;
  filter: blur(12px);
  z-index: -1;
  transition: opacity 0.3s;
}

.advantage-card:hover .advantage-icon {
  transform: scale(1.08) rotate(3deg);
}

.advantage-card:hover .advantage-icon::after {
  opacity: 0.4;
}

.advantage-icon i {
  font-size: 48px;
  color: var(--white);
}

.advantage-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 15px;
  color: var(--gray-400);
  line-height: 1.7;
}

/* FAQ Section */
.faq {
  padding: 100px 0;
  background: var(--gray-100);
  position: relative;
  overflow: hidden;
}

.faq::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(6,182,212,0.06) 0%, transparent 35%),
    radial-gradient(circle at 85% 50%, rgba(59,130,246,0.06) 0%, transparent 35%);
  pointer-events: none;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}

.faq-item.active {
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: 24px 28px;
  background: none;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: inherit;
}

.faq-question i {
  font-size: 20px;
  color: var(--primary);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  color: var(--gray-600);
  font-size: 15px;
  line-height: 1.8;
}

/* Contact Section */
.contact {
  padding: 100px 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--gray-600);
  margin-bottom: 36px;
}

.contact-list {
  list-style: none;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-list i {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--primary);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.contact-list li:hover i {
  transform: scale(1.1);
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
}

.contact-list h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
}

.contact-list p {
  color: var(--gray-600);
  font-size: 15px;
}

.contact-form {
  background: var(--gray-100);
  border-radius: 20px;
  padding: 40px;
}

.contact-form h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.contact-form > p {
  color: var(--gray-600);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-size: 15px;
  transition: all 0.2s;
  font-family: inherit;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  width: 100%;
  padding: 16px;
  font-size: 16px;
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .nav-logo {
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}

.footer h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 12px;
}

.footer ul a {
  font-size: 14px;
  transition: color 0.2s;
}

.footer ul a:hover {
  color: var(--white);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
}

.footer-bottom p {
  color: var(--gray-500);
  line-height: 1.8;
}

.footer-bottom a {
  color: var(--gray-500);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.footer-bottom svg {
  vertical-align: middle;
}

/* Toast/Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 20px;
  backdrop-filter: blur(4px);
}

.modal-overlay.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}

.modal {
  background: var(--white);
  border-radius: 20px;
  padding: 40px;
  max-width: 480px;
  width: 100%;
  position: relative;
  animation: slideUp 0.3s ease;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: var(--gray-100);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--gray-200);
}

.modal-close i {
  font-size: 20px;
  color: var(--gray-600);
}

.modal h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.modal > p {
  color: var(--gray-600);
  margin-bottom: 28px;
}

.modal .form-group {
  margin-bottom: 18px;
}

/* Success Toast */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background: var(--white);
  border-radius: 16px;
  padding: 48px 40px;
  box-shadow: var(--shadow-xl);
  text-align: center;
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  max-width: 360px;
  width: 90%;
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.toast-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  animation: bounce 0.5s ease;
}

.toast-icon i {
  font-size: 32px;
  color: var(--white);
}

.toast h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.toast p {
  color: var(--gray-600);
  font-size: 15px;
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* Count Up Animation */
.count-up {
  display: inline-block;
}

/* Product Detail Page Styles */
.product-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  color: var(--white);
}

.product-hero-content {
  text-align: center;
}

.product-hero .breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  margin-bottom: 24px;
}

.product-hero .breadcrumb a:hover {
  color: var(--white);
}

.product-hero h1 {
  font-size: 44px;
  font-weight: 800;
  margin-bottom: 20px;
}

.product-hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.9);
  max-width: 700px;
  margin: 0 auto 36px;
}

.product-hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.product-features {
  padding: 100px 0;
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}

.feature-block:nth-child(even) {
  direction: rtl;
}

.feature-block:nth-child(even) > * {
  direction: ltr;
}

.feature-content h3 {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.feature-content > p {
  color: #334155;
  margin-bottom: 24px;
  font-size: 16px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  color: #1e293b;
}

.feature-list i {
  color: var(--primary);
  font-size: 18px;
  margin-top: 2px;
}

.feature-visual {
  background: var(--gray-100);
  border-radius: 24px;
  padding: 60px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.feature-visual-placeholder {
  text-align: center;
  color: #1a56db;
}

.feature-visual-placeholder i {
  font-size: 120px;
  color: #93c5fd;
  margin-bottom: 16px;
}

.feature-visual-placeholder p {
  font-size: 14px;
  color: #1e40af;
  font-weight: 500;
}

.product-cta {
  padding: 80px 0;
  background: var(--gray-100);
  text-align: center;
}

.product-cta h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}

.product-cta p {
  color: var(--gray-600);
  margin-bottom: 36px;
  font-size: 18px;
}

/* CTA区域按钮特殊样式 - 在彩色背景上更醒目 */
.product-cta .btn-primary {
  background: #ffffff;
  color: #1e40af;
  border: 2px solid #ffffff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.product-cta .btn-primary:hover {
  background: #f0f4ff;
  color: #1e3a8a;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.2);
}

.product-cta .btn-outline {
  background: rgba(255,255,255,0.15);
  color: #ffffff;
  border: 2px solid rgba(255,255,255,0.8);
  backdrop-filter: blur(4px);
}

.product-cta .btn-outline:hover {
  background: rgba(255,255,255,0.25);
  color: #ffffff;
  border-color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.15);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero h1,
  .slide-content h1 {
    font-size: 36px;
  }
  
  .brand-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .feature-block,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .feature-block:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .nav-menu,
  .nav-actions .btn-outline {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu.active {
    display: flex;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
  }
  
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }
  
  .hero-slider {
    padding: 0 36px;
  }
  
  .hero h1,
  .slide-content h1 {
    font-size: 26px;
  }
  
  .hero-subtitle,
  .slide-content p {
    font-size: 15px;
  }
  
  .slider-btn {
    top: 180px;
    width: 38px;
    height: 38px;
    font-size: 20px;
    border-width: 1.5px;
  }
  
  .slider-prev {
    left: -2px;
  }
  
  .slider-next {
    right: -2px;
  }
  
  .slider-dots {
    margin-top: 24px;
    padding: 8px 0;
  }
  
  .dot {
    width: 10px;
    height: 10px;
  }
  
  .dot.active {
    width: 24px;
  }
  
  .hero-stats {
    gap: 20px;
    flex-wrap: wrap;
  }
  
  .hero-stat .number {
    font-size: 28px;
  }
  
  .slide-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .slide-actions .btn {
    width: 100%;
    max-width: 240px;
  }
  
  .hero-actions,
  .product-hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .brand-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .products,
  .advantages,
  .faq,
  .contact {
    padding: 60px 0;
  }
  
  .section-title h2 {
    font-size: 28px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .contact-form {
    padding: 28px;
  }
  
  .modal {
    padding: 32px 24px;
  }
  
  .product-hero h1 {
    font-size: 32px;
  }
  
  .feature-block {
    margin-bottom: 48px;
  }
  
  .feature-visual {
    padding: 40px 24px;
    min-height: 200px;
  }
  
  .brands {
    padding: 56px 0;
  }
  
  .brand-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  
  .brand-item {
    padding: 20px 12px;
    min-height: 110px;
    font-size: 13px;
    gap: 8px;
  }
  
  .brand-icon {
    font-size: 28px;
  }
  
  .section-title h2 {
    font-size: 26px;
  }
  
  .section-title p {
    font-size: 15px;
  }
}

/* ============ 增强动效样式 ============ */

/* 页面加载动画 */
.page-loader {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Hero 粒子Canvas */
.hero-bg canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* 按钮涟漪效果 */
.btn,
.product-card,
.brand-item,
.advantage-card {
  position: relative;
  overflow: hidden;
}

.btn .ripple,
.product-card .ripple,
.brand-item .ripple,
.advantage-card .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  transform: scale(0);
  animation: ripple 0.6s ease-out;
  pointer-events: none;
}

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* 按钮发光脉冲 */
.btn-primary {
  position: relative;
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  opacity: 0;
  z-index: -1;
  transition: opacity 0.3s ease;
  filter: blur(8px);
}

.btn-primary:hover::after {
  opacity: 0.6;
}

.btn-primary:hover {
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(26,86,219,0.4); }
  50% { box-shadow: 0 0 0 8px rgba(26,86,219,0); }
}

/* 产品卡片光效扫过 */
.product-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255,255,255,0.3),
    transparent
  );
  transition: left 0.6s ease;
  pointer-events: none;
}

.product-card:hover::after {
  left: 150%;
}

/* 产品卡片增强3D悬停 */
.product-card {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.product-card:hover {
  transform: translateY(-8px) rotateX(2deg) rotateY(-2deg);
}

.product-card .product-icon {
  transform: translateZ(20px);
}

/* 优势卡片发光边框 */
.advantage-card {
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: 16px;
  background: linear-gradient(135deg, transparent 30%, var(--accent) 50%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
}

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

.advantage-card {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease;
}

.advantage-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(6,182,212,0.15);
}

.advantage-icon {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.advantage-card:hover .advantage-icon {
  transform: rotate(-5deg) scale(1.1);
}

.advantage-icon i {
  animation: iconFloat 3s ease-in-out infinite;
}

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

/* 统计数字卡片增强 */
.hero-stat {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.hero-stat:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.hero-stat .number {
  text-shadow: 0 0 20px rgba(255,255,255,0.3);
}

/* 轮播切换增强动画 */
.slide-content {
  animation: slideContentIn 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes slideContentIn {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.slide.active .slide-content h1 {
  animation: textGlow 2s ease-in-out infinite alternate;
}

@keyframes textGlow {
  from { text-shadow: 0 0 10px rgba(255,255,255,0.2); }
  to { text-shadow: 0 0 30px rgba(6,182,212,0.4), 0 0 60px rgba(6,182,212,0.2); }
}

/* 滚动入场动画增强 */
.fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.fade-in-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* 导航栏滚动增强 */
.header {
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.header.scrolled {
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.header.scrolled .nav {
  height: 64px;
}

/* 品牌卡片进入动画 */
.brand-item {
  animation: brandItemIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes brandItemIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* FAQ 展开动画 */
.faq-answer {
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-question i {
  transition: transform 0.3s ease;
}

/* 表单输入框聚焦效果 */
.form-group input,
.form-group textarea {
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

/* 浮动元素 */
.float-element {
  animation: floatElement 4s ease-in-out infinite;
}

@keyframes floatElement {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* 光带流动效果 */
.shimmer-border {
  position: relative;
}

.shimmer-border::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  background-size: 200% 100%;
  animation: shimmerFlow 3s linear infinite;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
}

@keyframes shimmerFlow {
  to { background-position: 200% 0; }
}

/* 标题下划线动画 */
.section-title h2 {
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  animation: titleUnderline 1s ease forwards;
  animation-delay: 0.3s;
}

@keyframes titleUnderline {
  to { width: 60px; }
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-light), var(--accent));
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
}

/* 响应式动效降级 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 移动端性能优化 - 减少粒子数量 */
@media (max-width: 768px) {
  .hero-bg canvas {
    opacity: 0.6;
  }
  
  .product-card:hover {
    transform: translateY(-4px);
  }
  
  .hero-stat:hover {
    transform: translateY(-4px);
  }
}

/* ============ 产品详情页：每页独立风格（蓝色系统一） ============ */

/* ---------- 红薯侠：蓝色卡片 + 左侧色条 ---------- */
.page-hongxiaman .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
}
.page-hongxiaman .feature-block {
  background: #ffffff;
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 8px 30px rgba(26,86,219,0.08);
  border: 1px solid rgba(26,86,219,0.1);
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.page-hongxiaman .feature-content h3 {
  color: #1a56db;
  position: relative;
  padding-left: 16px;
}
.page-hongxiaman .feature-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: linear-gradient(180deg, #1a56db, #3b82f6);
  border-radius: 2px;
}
.page-hongxiaman .feature-list i {
  color: #1a56db;
}
.page-hongxiaman .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 2px dashed rgba(26,86,219,0.2);
}
.page-hongxiaman .feature-visual-placeholder i {
  color: #1a56db;
}
.page-hongxiaman .product-cta {
  background: linear-gradient(135deg, #1a56db 0%, #1e40af 100%);
  color: #fff;
}
.page-hongxiaman .product-cta h2,
.page-hongxiaman .product-cta p {
  color: #fff;
}

/* ---------- 超级IP口播：浅蓝科技 + 数字编号 ---------- */
.page-ip .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
  color: #1e293b;
}
.page-ip .feature-block {
  background: #ffffff;
  border: 1px solid #dbeafe;
  border-radius: 20px;
  padding: 36px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(30,64,175,0.08);
}
.page-ip .feature-block::before {
  content: attr(data-num);
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 64px;
  font-weight: 900;
  color: rgba(59,130,246,0.15);
  font-family: monospace;
}
.page-ip .feature-content h3 {
  color: #1e40af;
}
.page-ip .feature-content > p {
  color: #334155;
}
.page-ip .feature-list li {
  color: #1e293b;
}
.page-ip .feature-list i {
  color: #2563eb;
}
.page-ip .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid #bfdbfe;
}
.page-ip .feature-visual-placeholder i {
  color: #2563eb;
}
.page-ip .feature-visual-placeholder p {
  color: #1e40af;
}
.page-ip .product-cta {
  background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #2563eb 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-ip .product-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(147,197,253,0.35) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(191,219,254,0.25) 0%, transparent 50%);
  pointer-events: none;
}
.page-ip .product-cta .container {
  position: relative;
  z-index: 1;
}
.page-ip .product-cta h2 { color: #fff; }
.page-ip .product-cta p { color: rgba(255,255,255,0.92); }

/* ---------- 混剪智能体：蓝色 + 左边框 + 播放符 ---------- */
.page-mixcut .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
}
.page-mixcut .feature-block {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  border-left: 6px solid #2563eb;
  box-shadow: 0 10px 30px rgba(37,99,235,0.1);
  margin-bottom: 32px;
}
.page-mixcut .feature-content h3 {
  color: #2563eb;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.page-mixcut .feature-content h3::before {
  content: '▶';
  color: #60a5fa;
  font-size: 18px;
}
.page-mixcut .feature-list i {
  color: #2563eb;
}
.page-mixcut .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 16px;
  position: relative;
}
.page-mixcut .feature-visual::after {
  content: '🎬';
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 24px;
  opacity: 0.5;
}
.page-mixcut .feature-visual-placeholder i {
  color: #2563eb;
}
.page-mixcut .product-cta {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  color: #fff;
}
.page-mixcut .product-cta h2,
.page-mixcut .product-cta p { color: #fff; }

/* ---------- GEO智能搜索：蓝色 + 时间线圆点 ---------- */
.page-geo .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
  position: relative;
}
.page-geo .feature-block {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 32px;
  border: 1px solid #dbeafe;
  position: relative;
  box-shadow: 0 4px 20px rgba(59,130,246,0.06);
}
.page-geo .feature-block::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 32px;
  width: 16px;
  height: 16px;
  background: #3b82f6;
  border-radius: 50%;
  box-shadow: 0 0 0 4px #dbeafe;
}
.page-geo .feature-content h3 {
  color: #3b82f6;
}
.page-geo .feature-list i {
  color: #3b82f6;
}
.page-geo .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid #bfdbfe;
}
.page-geo .feature-visual-placeholder i {
  color: #3b82f6;
}
.page-geo .product-cta {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: #fff;
}
.page-geo .product-cta h2,
.page-geo .product-cta p { color: #fff; }

/* ---------- 轻播播：蓝色 + 圆润卡片 + 渐变边框 ---------- */
.page-qingbobo .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
}
.page-qingbobo .feature-block {
  background: #fff;
  border-radius: 32px;
  padding: 36px;
  margin-bottom: 32px;
  position: relative;
  border: 2px solid transparent;
  background-clip: padding-box;
  box-shadow: 0 8px 24px rgba(14,165,233,0.1);
}
.page-qingbobo .feature-block::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 32px;
  background: linear-gradient(135deg, #60a5fa, #0ea5e9, #60a5fa);
  z-index: -1;
  opacity: 0.5;
}
.page-qingbobo .feature-content h3 {
  color: #0ea5e9;
  text-align: center;
}
.page-qingbobo .feature-list i {
  color: #0ea5e9;
}
.page-qingbobo .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 24px;
}
.page-qingbobo .feature-visual-placeholder i {
  color: #0ea5e9;
}
.page-qingbobo .product-cta {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  color: #fff;
}
.page-qingbobo .product-cta h2,
.page-qingbobo .product-cta p { color: #fff; }

/* ---------- 直播助手：深蓝直播间 + 状态点 ---------- */
.page-zhibo .product-features {
  background: #0c1e3d;
  color: #fff;
}
.page-zhibo .feature-block {
  background: rgba(26,86,219,0.1);
  border: 1px solid rgba(96,165,250,0.3);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.page-zhibo .feature-content h3 {
  color: #60a5fa;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-zhibo .feature-content h3::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  background: #ef4444;
  border-radius: 50%;
  animation: livePulse 1.5s ease-in-out infinite;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(239,68,68,0.7); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(239,68,68,0); }
}
.page-zhibo .feature-content > p { color: rgba(255,255,255,0.7); }
.page-zhibo .feature-list li { color: rgba(255,255,255,0.85); }
.page-zhibo .feature-list i { color: #60a5fa; }
.page-zhibo .feature-visual {
  background: linear-gradient(135deg, rgba(26,86,219,0.2) 0%, rgba(96,165,250,0.1) 100%);
  border: 1px solid rgba(96,165,250,0.3);
}
.page-zhibo .feature-visual-placeholder i { color: #60a5fa; }
.page-zhibo .feature-visual-placeholder p {
  color: rgba(147,197,253,0.85);
}
.page-zhibo .product-cta {
  background: linear-gradient(135deg, #1a56db 0%, #1e3a8a 100%);
  color: #fff;
}
.page-zhibo .product-cta h2,
.page-zhibo .product-cta p { color: #fff; }

/* ---------- 销冠智能体：深蓝 + 左色块 ---------- */
.page-xiaoguan .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
}
.page-xiaoguan .feature-block {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 24px;
  border-left: 8px solid #4338ca;
  box-shadow: 0 4px 16px rgba(67,56,202,0.08);
}
.page-xiaoguan .feature-content h3 {
  color: #4338ca;
  font-weight: 800;
}
.page-xiaoguan .feature-list i { color: #4338ca; }
.page-xiaoguan .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 12px;
}
.page-xiaoguan .feature-visual-placeholder i { color: #4338ca; }
.page-xiaoguan .product-cta {
  background: linear-gradient(135deg, #4338ca 0%, #1a56db 100%);
  color: #fff;
}
.page-xiaoguan .product-cta h2,
.page-xiaoguan .product-cta p { color: #fff; }

/* ---------- 网站建设：海蓝 + 网格线背景 + 编号 ---------- */
.page-website .product-features {
  background: 
    linear-gradient(rgba(3,105,161,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(3,105,161,0.04) 1px, transparent 1px),
    linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
  background-size: 40px 40px, 40px 40px, 100% 100%;
}
.page-website .feature-block {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 32px;
  border: 1px solid #dbeafe;
  position: relative;
}
.page-website .feature-block::before {
  content: counter(website-counter, decimal-leading-zero);
  counter-increment: website-counter;
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 48px;
  font-weight: 900;
  color: rgba(3,105,161,0.12);
  font-family: 'Courier New', monospace;
}
.page-website .product-features { counter-reset: website-counter; }
.page-website .feature-content h3 { color: #0369a1; }
.page-website .feature-list i { color: #0369a1; }
.page-website .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px dashed #93c5fd;
}
.page-website .feature-visual-placeholder i { color: #0369a1; }
.page-website .product-cta {
  background: linear-gradient(135deg, #0369a1 0%, #1e3a8a 100%);
  color: #fff;
}
.page-website .product-cta h2,
.page-website .product-cta p { color: #fff; }

/* ---------- 新媒体代运营：宝蓝 + 杂志风 + 引号 ---------- */
.page-daiyunying .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
}
.page-daiyunying .feature-block {
  background: #f8fbff;
  border-radius: 16px;
  padding: 40px 36px;
  margin-bottom: 32px;
  border-top: 4px solid #1d4ed8;
  box-shadow: 0 6px 20px rgba(29,78,216,0.08);
  position: relative;
}
.page-daiyunying .feature-content h3 {
  color: #1d4ed8;
  font-family: Georgia, serif;
  font-style: italic;
}
.page-daiyunying .feature-content h3::before {
  content: '“';
  color: #93c5fd;
  font-size: 36px;
  margin-right: 8px;
}
.page-daiyunying .feature-list i { color: #1d4ed8; }
.page-daiyunying .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: 16px;
}
.page-daiyunying .feature-visual-placeholder i { color: #1d4ed8; }
.page-daiyunying .product-cta {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  color: #fff;
}
.page-daiyunying .product-cta h2,
.page-daiyunying .product-cta p { color: #fff; }

/* ---------- 400电话：钢蓝 + 卡片 + 序号徽章 ---------- */
.page-400 .product-features {
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 50%, #eff6ff 100%);
}
.page-400 .feature-block {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 24px;
  border: 1px solid #dbeafe;
  box-shadow: 0 2px 10px rgba(30,58,138,0.04);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.page-400 .feature-content h3 {
  color: #1e3a8a;
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-400 .feature-content h3::before {
  content: '☎';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: #1e3a8a;
  color: #fff;
  border-radius: 8px;
  font-size: 16px;
}
.page-400 .feature-list i { color: #1e3a8a; }
.page-400 .feature-visual {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid #dbeafe;
  border-radius: 12px;
}
.page-400 .feature-visual-placeholder i { color: #1e3a8a; }
.page-400 .product-cta {
  background: linear-gradient(135deg, #1e3a8a 0%, #1a56db 100%);
  color: #fff;
}
.page-400 .product-cta h2,
.page-400 .product-cta p { color: #fff; }

/* ---------- AI培训学院：天空蓝 + 学院风 + 课程徽章 ---------- */
.page-ai-training .product-features {
  background: 
    linear-gradient(180deg, #f0f9ff 0%, #ffffff 50%, #f0f9ff 100%);
  position: relative;
}
.page-ai-training .product-features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #0284c7 0%, #38bdf8 50%, #0284c7 100%);
}
.page-ai-training .feature-block {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 32px;
  border: 1px solid #e0f2fe;
  border-top: 3px solid #0284c7;
  box-shadow: 0 8px 28px rgba(2,132,199,0.08);
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.page-ai-training .feature-block::before {
  content: 'LESSON ' attr(data-num);
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #0284c7;
  background: #e0f2fe;
  padding: 4px 12px;
  border-radius: 20px;
  font-family: 'Courier New', monospace;
}
.page-ai-training .feature-content h3 {
  color: #0c4a6e;
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-ai-training .feature-content > p {
  color: #334155;
}
.page-ai-training .feature-list li {
  color: #1e293b;
}
.page-ai-training .feature-list i {
  color: #0284c7;
}
.page-ai-training .feature-visual {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid #bae6fd;
  border-radius: 16px;
  position: relative;
}
.page-ai-training .feature-visual::after {
  content: '🎓';
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 22px;
  opacity: 0.6;
}
.page-ai-training .feature-visual-placeholder i {
  color: #0284c7;
}
.page-ai-training .feature-visual-placeholder p {
  color: #075985;
}
.page-ai-training .product-cta {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 50%, #075985 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-ai-training .product-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 15% 50%, rgba(125,211,252,0.3) 0%, transparent 50%),
    radial-gradient(circle at 85% 50%, rgba(186,230,253,0.2) 0%, transparent 50%);
  pointer-events: none;
}
.page-ai-training .product-cta .container {
  position: relative;
  z-index: 1;
}
.page-ai-training .product-cta h2 { color: #fff; }
.page-ai-training .product-cta p { color: rgba(255,255,255,0.92); }

/* 详情页中间内容响应式适配 */
@media (max-width: 1024px) {
  .page-hongxiaman .feature-block,
  .page-ip .feature-block,
  .page-mixcut .feature-block,
  .page-geo .feature-block,
  .page-qingbobo .feature-block,
  .page-zhibo .feature-block,
  .page-xiaoguan .feature-block,
  .page-website .feature-block,
  .page-daiyunying .feature-block,
  .page-400 .feature-block,
  .page-ai-training .feature-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .page-ip .feature-block::before,
  .page-website .feature-block::before {
    font-size: 36px;
  }
  
  .page-hongxiaman .feature-block,
  .page-ip .feature-block,
  .page-mixcut .feature-block,
  .page-geo .feature-block,
  .page-qingbobo .feature-block,
  .page-zhibo .feature-block,
  .page-xiaoguan .feature-block,
  .page-website .feature-block,
  .page-daiyunying .feature-block,
  .page-400 .feature-block,
  .page-ai-training .feature-block {
    padding: 24px 20px;
  }

  .page-ai-training .feature-block::before {
    font-size: 11px;
    padding: 3px 10px;
  }
}