/* ========================================
   抖音揭秘 - 阴阳师主题样式
   原创配色：深紫 #1A0A2E / 金色 #D4AF37 / 墨黑 #0D0D1A
   ======================================== */

/* ---- CSS变量 ---- */
:root {
  --primary: #6B21A8;
  --primary-dark: #4C1D95;
  --primary-light: #9333EA;
  --gold: #D4AF37;
  --gold-light: #F0D060;
  --dark-bg: #0D0D1A;
  --dark-card: #1A0A2E;
  --dark-border: #2D1B4E;
  --text-main: #F0E6FF;
  --text-muted: #A78BCA;
  --text-gold: #D4AF37;
  --accent-red: #C0392B;
  --accent-cyan: #06B6D4;
  --white: #FFFFFF;
  --shadow-purple: 0 4px 24px rgba(107,33,168,0.4);
  --shadow-gold: 0 4px 24px rgba(212,175,55,0.3);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s ease;
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  background: var(--dark-bg);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--gold); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold-light); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; outline: none; }

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark-bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ---- 容器 ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-sm { padding: 50px 0; }

/* ---- 标题样式 ---- */
.section-title {
  text-align: center;
  margin-bottom: 50px;
}
.section-title h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  position: relative;
  display: inline-block;
  padding-bottom: 16px;
}
.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--gold));
  border-radius: 2px;
}
.section-title p {
  color: var(--text-muted);
  margin-top: 12px;
  font-size: 1rem;
}
.gold-text { color: var(--gold); }
.purple-text { color: var(--primary-light); }

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  box-shadow: var(--shadow-purple);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(107,33,168,0.6);
  color: var(--white);
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--dark-bg);
  box-shadow: var(--shadow-gold);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212,175,55,0.5);
  color: var(--dark-bg);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--primary-light);
  color: var(--primary-light);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ---- 徽章 ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-purple { background: rgba(107,33,168,0.3); color: var(--primary-light); border: 1px solid var(--primary); }
.badge-gold { background: rgba(212,175,55,0.2); color: var(--gold); border: 1px solid var(--gold); }
.badge-red { background: rgba(192,57,43,0.2); color: #E74C3C; border: 1px solid #C0392B; }
.badge-cyan { background: rgba(6,182,212,0.2); color: var(--accent-cyan); border: 1px solid var(--accent-cyan); }

/* ======================================
   顶部公告栏
   ====================================== */
.top-bar {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary), var(--primary-dark));
  padding: 8px 0;
  font-size: 0.8rem;
  color: var(--text-main);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.top-bar-marquee { flex: 1; overflow: hidden; }
.top-bar-marquee span {
  display: inline-block;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
}
@keyframes marquee {
  0% { transform: translateX(100vw); }
  100% { transform: translateX(-100%); }
}
.top-bar-links a {
  color: var(--gold-light);
  margin-left: 16px;
  font-size: 0.78rem;
}

/* ======================================
   导航栏
   ====================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,13,26,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--dark-border);
  padding: 0;
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.navbar-brand img.nav-logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: cover;
}
.navbar-brand .brand-name {
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.navbar-nav a {
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--gold);
  background: rgba(212,175,55,0.1);
}

/* 搜索框 */
.navbar-search {
  display: flex;
  align-items: center;
  background: rgba(45,27,78,0.6);
  border: 1px solid var(--dark-border);
  border-radius: 24px;
  padding: 6px 14px;
  gap: 8px;
  min-width: 200px;
  transition: var(--transition);
}
.navbar-search:focus-within {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(107,33,168,0.2);
}
.navbar-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 0.88rem;
  width: 100%;
}
.navbar-search input::placeholder { color: var(--text-muted); }
.navbar-search button {
  background: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0;
  transition: var(--transition);
}
.navbar-search button:hover { color: var(--gold); }

/* 汉堡菜单 */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  cursor: pointer;
}
.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* ======================================
   Hero Banner
   ====================================== */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.4);
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,26,0.8) 0%, rgba(107,33,168,0.3) 50%, rgba(13,13,26,0.9) 100%);
  z-index: 1;
}
/* 粒子装饰 */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0;
  animation: float-particle 6s infinite;
}
@keyframes float-particle {
  0% { opacity: 0; transform: translateY(0) scale(0); }
  20% { opacity: 0.8; transform: translateY(-20px) scale(1); }
  80% { opacity: 0.4; transform: translateY(-80px) scale(0.5); }
  100% { opacity: 0; transform: translateY(-120px) scale(0); }
}
.hero-content {
  position: relative;
  z-index: 3;
  max-width: 700px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212,175,55,0.15);
  border: 1px solid rgba(212,175,55,0.4);
  color: var(--gold);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--white);
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--gold), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat-item { text-align: center; }
.hero-stat-item .num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--gold);
  display: block;
}
.hero-stat-item .label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ======================================
   视频卡片网格
   ====================================== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow-purple);
}
.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: #0a0015;
}
.video-thumb img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-circle {
  width: 60px; height: 60px;
  background: rgba(212,175,55,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 0 30px rgba(212,175,55,0.6);
}
.video-card:hover .play-circle { transform: scale(1); }
.play-circle svg {
  width: 24px; height: 24px;
  fill: var(--dark-bg);
  margin-left: 4px;
}
.video-duration {
  position: absolute;
  bottom: 10px; right: 10px;
  background: rgba(0,0,0,0.75);
  color: var(--white);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-views {
  position: absolute;
  bottom: 10px; left: 10px;
  background: rgba(107,33,168,0.8);
  color: var(--white);
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 16px; }
.video-info .tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.video-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.video-meta .author { display: flex; align-items: center; gap: 6px; }
.video-meta .author img {
  width: 22px; height: 22px;
  border-radius: 50%;
  object-fit: cover;
}
.video-actions {
  display: flex;
  gap: 12px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--dark-border);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.video-actions span { display: flex; align-items: center; gap: 4px; }
.video-actions span:hover { color: var(--gold); cursor: pointer; }

/* ======================================
   视频模态框
   ====================================== */
.k8heg {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.9);
  align-items: center;
  justify-content: center;
}
.k8heg.active { display: flex; }
.modal-inner {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 800px;
  overflow: hidden;
  position: relative;
  animation: modal-in 0.3s ease;
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
.6p2aieow {
  position: absolute;
  top: 14px; right: 14px;
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  z-index: 10;
  cursor: pointer;
  transition: var(--transition);
}
.6p2aieow:hover { background: var(--primary); }
.modal-video-area {
  background: #000;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  color: var(--text-muted);
}
.modal-video-area .play-icon {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: white;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 0 40px rgba(212,175,55,0.4);
}
.modal-video-area .play-icon:hover { transform: scale(1.1); }
.modal-info { padding: 20px; }
.modal-info h3 { font-size: 1.1rem; color: var(--white); margin-bottom: 8px; }
.modal-info p { font-size: 0.88rem; color: var(--text-muted); }

/* ======================================
   影视传媒标签页
   ====================================== */
.media-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--dark-border);
  padding-bottom: 0;
}
.media-tab-btn {
  padding: 10px 20px;
  background: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
  border-radius: 0;
}
.media-tab-btn:hover { color: var(--gold); }
.media-tab-btn.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.media-tab-content { display: none; }
.media-tab-content.active { display: block; }

/* ======================================
   娱乐专区
   ====================================== */
.entertainment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.ent-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.ent-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}
.ent-card-img {
  position: relative;
  height: 160px;
  overflow: hidden;
}
.ent-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.ent-card:hover .ent-card-img img { transform: scale(1.08); }
.ent-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(13,13,26,0.9));
}
.ent-card-body { padding: 16px; }
.ent-card-body h3 {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 6px;
}
.ent-card-body p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.5; }
.ent-hot-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: linear-gradient(135deg, #E74C3C, #C0392B);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}

/* ======================================
   AI赋能模块
   ====================================== */
.ai-section {
  background: linear-gradient(135deg, rgba(13,13,26,0.95), rgba(26,10,46,0.95));
  position: relative;
  overflow: hidden;
}
.ai-section::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at center, rgba(107,33,168,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.ai-feature-list { display: flex; flex-direction: column; gap: 20px; }
.ai-feature-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: rgba(45,27,78,0.4);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.ai-feature-item:hover {
  border-color: var(--primary-light);
  background: rgba(107,33,168,0.15);
}
.ai-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.ai-feature-item h4 { font-size: 1rem; color: var(--white); margin-bottom: 4px; }
.ai-feature-item p { font-size: 0.85rem; color: var(--text-muted); }
.ai-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--dark-border);
  box-shadow: var(--shadow-purple);
}
.ai-img-wrap img { width: 100%; height: auto; }

/* ======================================
   社区功能模块
   ====================================== */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.community-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.community-card:hover {
  border-color: var(--primary-light);
  background: rgba(107,33,168,0.15);
  transform: translateY(-4px);
}
.community-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}
.community-card h3 { font-size: 1rem; color: var(--white); margin-bottom: 8px; }
.community-card p { font-size: 0.82rem; color: var(--text-muted); }
.community-card .count {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--gold);
  background: rgba(212,175,55,0.1);
  padding: 3px 10px;
  border-radius: 12px;
}

/* ======================================
   专家展示
   ====================================== */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.expert-card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}
.expert-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.expert-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.expert-card:hover .expert-img img { transform: scale(1.05); }
.expert-body { padding: 20px; }
.expert-body h3 { font-size: 1.05rem; color: var(--white); margin-bottom: 4px; }
.expert-body .role {
  font-size: 0.82rem;
  color: var(--gold);
  margin-bottom: 10px;
}
.expert-body p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.5; margin-bottom: 14px; }
.expert-stats {
  display: flex;
  gap: 16px;
  margin-bottom: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.expert-stats span { display: flex; align-items: center; gap: 4px; }
.expert-btns { display: flex; gap: 8px; }

/* ======================================
   合作品牌Logo墙
   ====================================== */
.partners-section {
  background: rgba(26,10,46,0.5);
  border-top: 1px solid var(--dark-border);
  border-bottom: 1px solid var(--dark-border);
}
.partners-track {
  overflow: hidden;
  position: relative;
}
.partners-track::before,
.partners-track::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 80px;
  z-index: 2;
}
.partners-track::before { left: 0; background: linear-gradient(to right, var(--dark-bg), transparent); }
.partners-track::after { right: 0; background: linear-gradient(to left, var(--dark-bg), transparent); }
.partners-list {
  display: flex;
  gap: 40px;
  animation: scroll-partners 25s linear infinite;
  width: max-content;
}
@keyframes scroll-partners {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.partner-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: rgba(45,27,78,0.4);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}
.partner-item:hover { color: var(--gold); border-color: var(--gold); }
.partner-item .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary-light);
}

/* ======================================
   FAQ
   ====================================== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--primary); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
}
.faq-question:hover { color: var(--gold); }
.faq-item.open .faq-question { color: var(--gold); }
.faq-icon {
  width: 28px; height: 28px;
  background: rgba(107,33,168,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-light);
  font-size: 1rem;
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 22px 18px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ======================================
   用户评价
   ====================================== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  position: relative;
}
.review-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}
.review-card::before {
  content: '\201C';
  position: absolute;
  top: 16px; right: 20px;
  font-size: 3rem;
  color: var(--primary);
  opacity: 0.3;
  line-height: 1;
  font-family: serif;
}
.review-stars { color: var(--gold); font-size: 0.9rem; margin-bottom: 12px; }
.review-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: white;
  font-weight: 700;
  flex-shrink: 0;
}
.review-author-info .name { font-size: 0.9rem; color: var(--white); font-weight: 600; }
.review-author-info .date { font-size: 0.78rem; color: var(--text-muted); }

/* ======================================
   联系我们
   ====================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info-list { display: flex; flex-direction: column; gap: 16px; }
.contact-info-item {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
}
.contact-info-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-info-item h4 { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-info-item p { font-size: 0.95rem; color: var(--text-main); }
.qr-codes {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.qr-item { text-align: center; }
.qr-item img {
  width: 120px; height: 120px;
  border: 2px solid var(--dark-border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}
.qr-item p { font-size: 0.82rem; color: var(--text-muted); }

/* ======================================
   社交分享
   ====================================== */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label { font-size: 0.88rem; color: var(--text-muted); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
}
.share-wechat { background: rgba(7,193,96,0.15); color: #07C160; border: 1px solid rgba(7,193,96,0.3); }
.share-weibo { background: rgba(230,22,45,0.15); color: #E6162D; border: 1px solid rgba(230,22,45,0.3); }
.share-douyin { background: rgba(0,0,0,0.3); color: #FE2C55; border: 1px solid rgba(254,44,85,0.3); }
.share-bilibili { background: rgba(0,161,214,0.15); color: #00A1D6; border: 1px solid rgba(0,161,214,0.3); }
.share-btn:hover { transform: translateY(-2px); filter: brightness(1.2); }

/* ======================================
   信任徽章
   ====================================== */
.trust-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 32px 0;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(45,27,78,0.4);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-muted);
}
.trust-badge .icon { font-size: 1.1rem; }

/* ======================================
   面包屑
   ====================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { color: var(--dark-border); }
.breadcrumb .current { color: var(--text-main); }

/* ======================================
   页脚
   ====================================== */
.footer {
  background: var(--dark-card);
  border-top: 1px solid var(--dark-border);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .logo-wrap img {
  width: 40px; height: 40px;
  border-radius: 8px;
}
.footer-brand .logo-wrap span {
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--dark-border);
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.85rem; color: var(--text-muted); }
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid var(--dark-border);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--gold); }
.update-time { color: var(--primary-light); }

/* ======================================
   回到顶部
   ====================================== */
.6m8mul2 {
  position: fixed;
  bottom: 30px; right: 30px;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-purple);
}
.6m8mul2.show { opacity: 1; transform: translateY(0); }
.6m8mul2:hover { transform: translateY(-4px); }

/* ======================================
   内页通用
   ====================================== */
.page-hero {
  background: linear-gradient(135deg, var(--dark-card), var(--primary-dark));
  border-bottom: 1px solid var(--dark-border);
  padding: 60px 0 40px;
}
.page-hero h1 { font-size: 2.2rem; font-weight: 800; color: var(--white); margin-bottom: 12px; }
.page-hero p { font-size: 1rem; color: var(--text-muted); }

/* ======================================
   响应式
   ====================================== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .navbar-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(13,13,26,0.98);
    border-bottom: 1px solid var(--dark-border);
    padding: 16px 20px;
    z-index: 999;
  }
  .navbar-toggle { display: flex; }
  .navbar-search { min-width: 140px; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 24px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 1.6rem; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.6rem; }
  .hero-btns { flex-direction: column; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .video-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ======================================
   装饰元素
   ====================================== */
.divider-ornament {
  text-align: center;
  margin: 40px 0;
  position: relative;
}
.divider-ornament::before,
.divider-ornament::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(50% - 60px);
  height: 1px;
  background: linear-gradient(to right, transparent, var(--dark-border));
}
.divider-ornament::before { left: 0; }
.divider-ornament::after { right: 0; background: linear-gradient(to left, transparent, var(--dark-border)); }
.divider-ornament span {
  display: inline-block;
  padding: 6px 20px;
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 2px;
}

/* 加载动画 */
.skeleton {
  background: linear-gradient(90deg, var(--dark-card) 25%, rgba(45,27,78,0.4) 50%, var(--dark-card) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 统计数字动画 */
.stat-number { font-variant-numeric: tabular-nums; }

/* 标签云 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item {
  padding: 5px 14px;
  background: rgba(45,27,78,0.5);
  border: 1px solid var(--dark-border);
  border-radius: 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.tag-item:hover {
  background: rgba(107,33,168,0.3);
  border-color: var(--primary-light);
  color: var(--primary-light);
}