/* =========================================
   在线看片 - 主样式文件
   原创设计 © 2025 在线看片 | oxqrory.cn
   ========================================= */

/* ---- CSS变量 ---- */
:root {
  --primary: #c8006e;
  --primary-light: #ff4da6;
  --primary-dark: #8b0050;
  --secondary: #6a0dad;
  --secondary-light: #9b30ff;
  --accent: #ff6b35;
  --accent2: #00d4aa;
  --bg-dark: #0d0a1a;
  --bg-card: #1a1030;
  --bg-card2: #120d26;
  --text-main: #f0e8ff;
  --text-muted: #a89bc0;
  --border: rgba(200,0,110,0.25);
  --shadow: 0 8px 32px rgba(106,13,173,0.35);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --font-main: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}

/* ---- 重置 ---- */
*, *::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(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

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

/* ---- 顶部公告栏 ---- */
.top-bar {
  background: linear-gradient(90deg, var(--primary-dark), var(--secondary), var(--primary-dark));
  background-size: 200% 100%;
  animation: gradientShift 4s ease infinite;
  padding: 6px 0;
  text-align: center;
  font-size: 13px;
  color: #fff;
  letter-spacing: 0.5px;
}
@keyframes gradientShift {
  0%,100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.top-bar a { color: #ffd700; font-weight: 600; }

/* ---- 导航栏 ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,10,26,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 20px rgba(200,0,110,0.15);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  height: 64px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: cover;
}
.site-logo .logo-text {
  font-size: 20px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.main-nav {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: #fff;
  background: rgba(200,0,110,0.2);
}
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 6px 14px;
  gap: 8px;
  transition: border-color var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(200,0,110,0.15);
}
.header-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 13px;
  width: 160px;
  font-family: var(--font-main);
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  padding: 0;
  transition: color var(--transition);
}
.header-search button:hover { color: var(--primary-light); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- 面包屑 ---- */
.breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 20px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { opacity: 0.4; }
.breadcrumb .current { color: var(--primary-light); }

/* ---- Hero Banner ---- */
.hero-banner {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner_bg.jpg');
  background-size: cover;
  background-position: center top;
  filter: brightness(0.55);
  transform: scale(1.05);
  transition: transform 8s ease;
}
.hero-banner:hover .hero-bg { transform: scale(1.0); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,10,26,0.85) 0%, rgba(106,13,173,0.4) 50%, rgba(200,0,110,0.3) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 20px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(200,0,110,0.25);
  border: 1px solid rgba(200,0,110,0.5);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 12px;
  color: var(--primary-light);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary-light);
  border-radius: 50%;
  animation: pulse 1.5s ease infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero-content h1 {
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.hero-content h1 .brand {
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content .hero-desc {
  font-size: clamp(14px, 2vw, 18px);
  color: rgba(240,232,255,0.85);
  max-width: 600px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
}
.hero-stat .num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-light);
  display: block;
}
.hero-stat .label {
  font-size: 12px;
  color: var(--text-muted);
}
.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(200,0,110,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(200,0,110,0.55);
  color: #fff;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-outline:hover {
  border-color: var(--primary-light);
  color: var(--primary-light);
  background: rgba(200,0,110,0.1);
}

/* ---- 搜索栏（导航下方） ---- */
.search-section {
  background: var(--bg-card2);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.search-bar-wrap {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 0;
}
.search-bar-wrap input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 1.5px solid var(--border);
  border-right: none;
  border-radius: 10px 0 0 10px;
  padding: 11px 18px;
  color: var(--text-main);
  font-size: 14px;
  font-family: var(--font-main);
  outline: none;
  transition: border-color var(--transition);
}
.search-bar-wrap input:focus { border-color: var(--primary-light); }
.search-bar-wrap input::placeholder { color: var(--text-muted); }
.search-bar-wrap button {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  border-radius: 0 10px 10px 0;
  padding: 11px 24px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition);
  font-family: var(--font-main);
}
.search-bar-wrap button:hover { opacity: 0.85; }
.search-hot-tags {
  max-width: 700px;
  margin: 8px auto 0;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
}
.search-hot-tags .label { color: var(--text-muted); }
.search-hot-tags a {
  background: rgba(200,0,110,0.12);
  border: 1px solid rgba(200,0,110,0.25);
  border-radius: 12px;
  padding: 2px 10px;
  color: var(--primary-light);
  font-size: 12px;
  transition: all var(--transition);
}
.search-hot-tags a:hover {
  background: rgba(200,0,110,0.25);
  color: #fff;
}

/* ---- 通用区块 ---- */
.section {
  padding: 64px 0;
}
.section-alt { background: var(--bg-card2); }
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(200,0,110,0.2), rgba(106,13,173,0.2));
  border: 1px solid rgba(200,0,110,0.35);
  border-radius: 20px;
  padding: 4px 16px;
  font-size: 12px;
  color: var(--primary-light);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(22px, 3.5vw, 36px);
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-title .highlight {
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ---- 视频卡片网格 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(200,0,110,0.5);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #1a0d30;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(200,0,110,0.5);
  transform: scale(0.8);
  transition: transform var(--transition);
}
.video-card:hover .play-btn { transform: scale(1); }
.play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}
.video-info {
  padding: 14px;
}
.video-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-stats {
  display: flex;
  gap: 12px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}
.video-stats span { display: flex; align-items: center; gap: 3px; }

/* ---- 特色模块卡片 ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  text-align: center;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(200,0,110,0.5);
  box-shadow: var(--shadow);
}
.feature-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(200,0,110,0.2), rgba(106,13,173,0.2));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 16px;
  border: 1px solid rgba(200,0,110,0.25);
}
.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}
.feature-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---- 专家展示 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  text-align: center;
}
.expert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(200,0,110,0.5);
}
.expert-avatar {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: rgba(255,255,255,0.3);
}
.expert-avatar-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}
.expert-info { padding: 18px; }
.expert-name {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}
.expert-role {
  font-size: 12px;
  color: var(--primary-light);
  margin-bottom: 10px;
}
.expert-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}
.expert-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
}
.btn-sm {
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}
.btn-sm-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}
.btn-sm-primary:hover { opacity: 0.85; }
.btn-sm-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid rgba(200,0,110,0.4);
}
.btn-sm-outline:hover {
  background: rgba(200,0,110,0.15);
}

/* ---- 用户评论 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.review-card:hover {
  border-color: rgba(200,0,110,0.4);
  box-shadow: 0 4px 20px rgba(106,13,173,0.2);
}
.review-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-user-info .name {
  font-size: 14px;
  font-weight: 600;
}
.review-user-info .date {
  font-size: 11px;
  color: var(--text-muted);
}
.review-stars {
  color: #ffd700;
  font-size: 13px;
  margin-bottom: 10px;
}
.review-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}
.review-tag {
  display: inline-block;
  margin-top: 10px;
  background: rgba(200,0,110,0.1);
  border-radius: 10px;
  padding: 2px 10px;
  font-size: 11px;
  color: var(--primary-light);
}

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.open { border-color: rgba(200,0,110,0.5); }
.faq-q {
  padding: 18px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  transition: background var(--transition);
  user-select: none;
}
.faq-q:hover { background: rgba(200,0,110,0.08); }
.faq-q .arrow {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(200,0,110,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  background: rgba(200,0,110,0.04);
}
.faq-item.open .faq-a { max-height: 300px; }
.faq-a-inner {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ---- 合作品牌Logo墙 ---- */
.partners-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.partner-badge {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}
.partner-badge:hover {
  border-color: rgba(200,0,110,0.5);
  color: var(--text-main);
  transform: translateY(-2px);
}

/* ---- 社区入口 ---- */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.community-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px 16px;
  border: 1px solid var(--border);
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}
.community-card:hover {
  transform: translateY(-3px);
  border-color: rgba(200,0,110,0.5);
  box-shadow: var(--shadow);
}
.community-icon { font-size: 36px; margin-bottom: 12px; }
.community-name {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}
.community-count {
  font-size: 12px;
  color: var(--text-muted);
}

/* ---- 联系我们 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}
.contact-item-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, rgba(200,0,110,0.2), rgba(106,13,173,0.2));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-item-text .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.contact-item-text .value {
  font-size: 14px;
  font-weight: 600;
}
.qrcode-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.qrcode-box {
  text-align: center;
}
.qrcode-box img {
  width: 130px;
  height: 130px;
  border-radius: var(--radius);
  border: 2px solid var(--border);
  object-fit: cover;
}
.qrcode-box p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ---- 社交分享 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label {
  font-size: 13px;
  color: var(--text-muted);
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  color: #fff;
}
.share-wechat { background: #07c160; }
.share-weibo { background: #e6162d; }
.share-douyin { background: #010101; border: 1px solid #333; }
.share-bilibili { background: #00a1d6; }
.share-btn:hover { opacity: 0.85; transform: translateY(-1px); }

/* ---- 页脚 ---- */
.site-footer {
  background: #080614;
  border-top: 1px solid var(--border);
  padding: 60px 0 0;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  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: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}
.footer-brand .logo-wrap span {
  font-size: 18px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.footer-social a:hover {
  background: rgba(200,0,110,0.2);
  border-color: rgba(200,0,110,0.4);
  color: var(--primary-light);
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary-light); }

/* ---- 标签页/分类导航 ---- */
.tab-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.tab-btn {
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  transition: all var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: transparent;
  color: #fff;
}

/* ---- 分页 ---- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  transition: all var(--transition);
}
.page-btn.active, .page-btn:hover {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: transparent;
  color: #fff;
}

/* ---- 统计数字条 ---- */
.stats-bar {
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary), var(--primary-dark));
  padding: 40px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-item .num {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 900;
  color: #fff;
  display: block;
  margin-bottom: 4px;
}
.stat-item .label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
}

/* ---- 内页Hero ---- */
.page-hero {
  background: linear-gradient(135deg, var(--bg-card2), var(--secondary) 60%, var(--primary-dark));
  padding: 60px 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 900;
  margin-bottom: 12px;
}
.page-hero p {
  font-size: 15px;
  color: rgba(240,232,255,0.8);
  max-width: 500px;
  margin: 0 auto;
}

/* ---- 移动端适配 ---- */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(13,10,26,0.98);
    padding: 20px;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    z-index: 999;
  }
  .hamburger { display: flex; }
  .header-search { display: none; }
  .hero-banner { min-height: 420px; }
  .hero-stats { gap: 20px; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .community-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---- 动画 ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* ---- 视频模态框 ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 720px;
  width: 90%;
  border: 1px solid var(--border);
  transform: scale(0.9);
  transition: transform var(--transition);
}
.modal-overlay.open .modal-content { transform: scale(1); }
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.modal-title { font-size: 16px; font-weight: 700; }
.modal-close {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  border: none;
  color: var(--text-main);
  transition: background var(--transition);
}
.modal-close:hover { background: rgba(200,0,110,0.3); }
.modal-video {
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
}

/* ---- 悬浮按钮 ---- */
.float-btns {
  position: fixed;
  right: 20px;
  bottom: 80px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 500;
}
.float-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(200,0,110,0.4);
  transition: all var(--transition);
  border: none;
  color: #fff;
  text-decoration: none;
}
.float-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(200,0,110,0.55);
  color: #fff;
}

/* ---- 加载动画 ---- */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, rgba(255,255,255,0.05) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius);
}
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---- 视频专区大图 ---- */
.video-hero-section {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
}
.video-hero-section img {
  width: 100%;
  aspect-ratio: 21/9;
  object-fit: cover;
}
.video-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(13,10,26,0.9) 0%, rgba(13,10,26,0.3) 100%);
  display: flex;
  align-items: center;
  padding: 40px;
}
.video-hero-text h2 {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 800;
  margin-bottom: 10px;
}
.video-hero-text p {
  font-size: 14px;
  color: rgba(240,232,255,0.8);
  max-width: 400px;
}

/* ---- 热门标签云 ---- */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.tag-item {
  background: rgba(200,0,110,0.1);
  border: 1px solid rgba(200,0,110,0.25);
  border-radius: 16px;
  padding: 4px 14px;
  font-size: 12px;
  color: var(--primary-light);
  transition: all var(--transition);
  cursor: pointer;
}
.tag-item:hover {
  background: rgba(200,0,110,0.25);
  color: #fff;
}

/* ---- 通知条 ---- */
.notice-bar {
  background: rgba(200,0,110,0.1);
  border: 1px solid rgba(200,0,110,0.25);
  border-radius: var(--radius);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.notice-bar .notice-icon {
  font-size: 18px;
  flex-shrink: 0;
}
.notice-bar strong { color: var(--primary-light); }


/* ---- 导航下拉菜单 ---- */
.nav-dropdown {
  position: relative;
}
.nav-dropdown > a {
  cursor: pointer;
}
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 0;
  min-width: 200px;
  box-shadow: var(--shadow);
  z-index: 200;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  display: block;
}
.nav-dropdown-menu a {
  display: block;
  padding: 10px 18px;
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  transition: all var(--transition);
  border-radius: 0;
}
.nav-dropdown-menu a:hover {
  background: rgba(200,0,110,0.12);
  color: var(--primary-light);
}

/* ---- 视频标签增强 ---- */
.video-label-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.video-label {
  font-size: 11px;
  border-radius: 4px;
  padding: 2px 8px;
  font-weight: 500;
}
.video-label-life {
  background: rgba(200,0,110,0.15);
  color: var(--primary-light);
}
.video-label-tutorial {
  background: rgba(106,13,173,0.15);
  color: var(--accent2);
}
.video-label-commentary {
  background: rgba(255,107,53,0.15);
  color: var(--accent);
}

/* ---- 面包屑 ---- */
.breadcrumb {
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.breadcrumb .container,
.breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: var(--primary-light); font-weight: 600; }

/* ---- 页面Hero ---- */
.page-hero {
  background: linear-gradient(135deg, rgba(13,10,26,0.9), rgba(106,13,173,0.5)), url('/assets/images/banner_bg.jpg');
  background-size: cover;
  background-position: center;
  padding: 64px 24px;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #fff, var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto;
}

/* ---- 视频英雄区 ---- */
.video-hero-section {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
  max-height: 340px;
}
.video-hero-section img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  display: block;
}
.video-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(13,10,26,0.9) 40%, transparent);
  display: flex;
  align-items: center;
  padding: 32px;
}
.video-hero-text h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
}
.video-hero-text p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 16px;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-item {
  background: rgba(200,0,110,0.2);
  border: 1px solid rgba(200,0,110,0.4);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--primary-light);
}

/* ---- 热门搜索标签 ---- */
.search-hot-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
  font-size: 13px;
}
.search-hot-tags .label {
  color: var(--text-muted);
}
.search-hot-tags a {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.search-hot-tags a:hover {
  background: rgba(200,0,110,0.15);
  border-color: rgba(200,0,110,0.4);
  color: var(--primary-light);
}

/* ---- 分页 ---- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}
.page-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
}
.page-btn:hover, .page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ---- 联系信息 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary-light);
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}
.contact-item-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-item-text .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.contact-item-text .value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}
.qrcode-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.qrcode-box {
  text-align: center;
  flex: 1;
  min-width: 120px;
}
.qrcode-box img {
  width: 100%;
  max-width: 140px;
  border-radius: 12px;
  border: 2px solid var(--border);
}
.qrcode-box p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ---- 专家按钮 ---- */
.btn-sm {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-sm-primary {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}
.btn-sm-primary:hover { background: var(--primary-dark); }
.btn-sm-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid rgba(200,0,110,0.5);
}
.btn-sm-outline:hover { background: rgba(200,0,110,0.1); }

/* ---- 社区卡片 ---- */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.community-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
}
.community-card:hover {
  border-color: rgba(200,0,110,0.5);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(200,0,110,0.15);
}
.community-icon { font-size: 32px; margin-bottom: 10px; }
.community-name { font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.community-count { font-size: 12px; color: var(--text-muted); }

@media (max-width: 768px) {
  .nav-dropdown-menu { left: 0; transform: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .video-hero-section { max-height: 200px; }
  .video-hero-section img { height: 200px; }
  .video-hero-text h2 { font-size: 18px; }
  .page-hero { padding: 40px 16px; }
}