/* =========================================
   女神视频 - 全局样式
   原创设计 | bdrebj.cn
   ========================================= */

/* CSS变量 */
:root {
  --primary: #7c3aed;
  --primary-light: #a855f7;
  --primary-dark: #5b21b6;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --gold: #f59e0b;
  --dark: #0d0d1a;
  --dark-2: #13132a;
  --dark-3: #1a1a35;
  --dark-4: #22224a;
  --text-primary: #f0f0ff;
  --text-secondary: #a0a0c0;
  --text-muted: #6060a0;
  --border: rgba(124, 58, 237, 0.3);
  --border-light: rgba(124, 58, 237, 0.15);
  --shadow: 0 4px 24px rgba(124, 58, 237, 0.2);
  --shadow-lg: 0 8px 48px rgba(124, 58, 237, 0.3);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', sans-serif;
}

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

/* 滚动条样式 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark-2); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* =========================================
   头部与导航
   ========================================= */
/* 导航栏小图标（需求要求） */
.nav-site-icon {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  flex-shrink: 0;
}
.site-logo-img {
  height: 40px;
  width: auto;
  border-radius: 8px;
}
/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(124,58,237,0.4);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 998;
  display: flex;
  align-items: center;
  justify-content: center;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(124,58,237,0.6); }

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 26, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(13, 13, 26, 0.98);
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 68px;
  gap: 24px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img {
  height: 44px;
  width: auto;
}
.site-logo .logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.main-nav {
  flex: 1;
  display: flex;
  align-items: center;
}
.main-nav ul {
  display: flex;
  gap: 4px;
  align-items: center;
}
.main-nav ul li a {
  display: block;
  padding: 6px 14px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav ul li a:hover,
.main-nav ul li a.active {
  color: var(--text-primary);
  background: rgba(124, 58, 237, 0.2);
}
.main-nav ul li.has-dropdown { position: relative; }
.main-nav ul li.has-dropdown > a::after {
  content: ' ▾';
  font-size: 0.75rem;
}
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 160px;
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  z-index: 100;
}
.main-nav ul li.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 0.875rem;
}
.dropdown-menu a:hover { color: var(--text-primary); background: rgba(124,58,237,0.15); }

/* 搜索框 */
.header-search {
  position: relative;
  flex-shrink: 0;
}
.header-search input {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 7px 40px 7px 16px;
  color: var(--text-primary);
  font-size: 0.875rem;
  width: 200px;
  outline: none;
  transition: var(--transition);
  font-family: var(--font-main);
}
.header-search input:focus {
  border-color: var(--primary);
  width: 240px;
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search button {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}
.header-search button:hover { color: var(--primary-light); }
.search-tips {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 0;
  display: none;
  z-index: 200;
}
.search-tips.show { display: block; }
.search-tips li { padding: 6px 16px; font-size: 0.85rem; color: var(--text-secondary); cursor: pointer; }
.search-tips li:hover { background: rgba(124,58,237,0.15); color: var(--text-primary); }

/* 汉堡菜单 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* =========================================
   导航下方搜索栏（宽搜索）
   ========================================= */
.nav-search-bar {
  background: var(--dark-2);
  border-bottom: 1px solid var(--border-light);
  padding: 10px 0;
}
.nav-search-bar .inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-search-bar .search-wrap {
  display: flex;
  flex: 1;
  max-width: 680px;
  border: 1px solid var(--border);
  border-radius: 28px;
  overflow: hidden;
  background: var(--dark-3);
}
.nav-search-bar input {
  flex: 1;
  padding: 10px 20px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  outline: none;
  font-family: var(--font-main);
}
.nav-search-bar input::placeholder { color: var(--text-muted); }
.nav-search-bar .search-btn {
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
}
.nav-search-bar .search-btn:hover { opacity: 0.9; }
.nav-search-bar .hot-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-search-bar .hot-tags span {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.nav-search-bar .hot-tags a {
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 2px 10px;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  transition: var(--transition);
}
.nav-search-bar .hot-tags a:hover {
  border-color: var(--primary);
  color: var(--primary-light);
}

/* =========================================
   通用布局
   ========================================= */
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p { color: var(--text-secondary); font-size: 1rem; max-width: 600px; margin: 0 auto; }
.section-header .badge {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(124,58,237,0.2);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--primary-light);
  margin-bottom: 12px;
}

/* 分割线装饰 */
.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  margin: 16px auto 0;
}

/* =========================================
   按钮
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  font-family: var(--font-main);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: 1px solid transparent;
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124,58,237,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid var(--primary);
}
.btn-outline:hover {
  background: rgba(124,58,237,0.15);
  color: var(--text-primary);
  transform: translateY(-2px);
}
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #0891b2);
  color: #fff;
  border: 1px solid transparent;
}
.btn-accent:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6,182,212,0.4);
  color: #fff;
}
.btn-sm { padding: 6px 16px; font-size: 0.8rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }

/* =========================================
   卡片
   ========================================= */
.card {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.card:hover {
  border-color: var(--border);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

/* =========================================
   视频卡片
   ========================================= */
.video-card {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.video-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--dark-4);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.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-icon {
  width: 56px;
  height: 56px;
  background: rgba(124,58,237,0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  border: 2px solid rgba(255,255,255,0.3);
  transition: transform 0.2s ease;
}
.video-card:hover .play-icon { transform: scale(1.1); }
.play-icon::after {
  content: '';
  display: block;
  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: 0.75rem;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.video-info { padding: 14px; }
.video-info h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* =========================================
   网格布局
   ========================================= */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

/* =========================================
   标签
   ========================================= */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}
.tag-purple { background: rgba(124,58,237,0.2); color: var(--primary-light); border: 1px solid rgba(124,58,237,0.3); }
.tag-cyan { background: rgba(6,182,212,0.2); color: var(--accent-light); border: 1px solid rgba(6,182,212,0.3); }
.tag-gold { background: rgba(245,158,11,0.2); color: var(--gold); border: 1px solid rgba(245,158,11,0.3); }

/* =========================================
   面包屑
   ========================================= */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb span { margin: 0 6px; }

/* =========================================
   底部
   ========================================= */
.site-footer {
  background: var(--dark-2);
  border-top: 1px solid var(--border-light);
  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 { height: 40px; }
.footer-brand .logo-wrap span {
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.8; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px;
  height: 36px;
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-social a:hover {
  background: rgba(124,58,237,0.2);
  border-color: var(--primary);
  color: var(--primary-light);
}
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-qrcodes {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
  padding: 24px;
  background: var(--dark-3);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
}
.footer-qrcodes .qr-item { text-align: center; }
.footer-qrcodes .qr-item img { width: 100px; height: 100px; object-fit: cover; border-radius: 8px; margin: 0 auto 8px; }
.footer-qrcodes .qr-item p { font-size: 0.78rem; color: var(--text-muted); }
.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary-light); }
.footer-links { display: flex; gap: 16px; }
.footer-links a { font-size: 0.8rem; color: var(--text-muted); }

/* =========================================
   Hero Banner
   ========================================= */
.hero-banner {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(13,13,26,0.88) 0%,
    rgba(13,13,26,0.6) 50%,
    rgba(13,13,26,0.75) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 20px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124,58,237,0.2);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 6px 16px;
  font-size: 0.85rem;
  color: var(--primary-light);
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-title .brand {
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-stats .stat { text-align: left; }
.hero-stats .stat .num {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stats .stat .label { font-size: 0.8rem; color: var(--text-muted); }

/* =========================================
   评论/评价
   ========================================= */
.review-card {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: var(--border); box-shadow: var(--shadow); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-user .name { font-size: 0.9rem; font-weight: 600; color: var(--text-primary); }
.review-user .level { font-size: 0.75rem; color: var(--text-muted); }
.review-stars { color: var(--gold); font-size: 0.85rem; margin-bottom: 8px; }
.review-text { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; }
.review-date { font-size: 0.75rem; color: var(--text-muted); margin-top: 10px; }

/* =========================================
   FAQ
   ========================================= */
.faq-item {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--primary); }
.faq-question {
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary-light); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(124,58,237,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--primary-light);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer p {
  padding: 0 20px 18px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* =========================================
   专家卡片
   ========================================= */
.expert-card {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.expert-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow); }
.expert-photo {
  height: 200px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--dark-4), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}
.expert-info { padding: 20px; }
.expert-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.expert-info .role { font-size: 0.8rem; color: var(--primary-light); margin-bottom: 10px; }
.expert-info p { font-size: 0.83rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 14px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.expert-actions { display: flex; gap: 8px; }

/* =========================================
   合作品牌Logo墙
   ========================================= */
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: center;
}
.partner-logo {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 16px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary-light); }

/* =========================================
   社区功能模块
   ========================================= */
.community-card {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}
.community-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow); }
.community-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}
.community-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.community-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; }

/* =========================================
   分享按钮
   ========================================= */
.share-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
  border: 1px solid transparent;
}
.share-wechat { background: rgba(7,193,96,0.15); color: #07c160; border-color: rgba(7,193,96,0.3); }
.share-weibo { background: rgba(230,22,45,0.15); color: #e6162d; border-color: rgba(230,22,45,0.3); }
.share-douyin { background: rgba(0,0,0,0.3); color: #fff; border-color: rgba(255,255,255,0.2); }
.share-bilibili { background: rgba(0,161,214,0.15); color: #00a1d6; border-color: rgba(0,161,214,0.3); }
.share-btn:hover { transform: translateY(-2px); opacity: 0.85; }

/* =========================================
   内页 Hero
   ========================================= */
.page-hero {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, var(--dark-2) 0%, var(--dark) 100%);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-hero p { color: var(--text-secondary); font-size: 1rem; max-width: 600px; }

/* =========================================
   联系我们
   ========================================= */
.contact-card {
  background: var(--dark-3);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px;
}
.contact-item { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(124,58,237,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item .info .label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-item .info .value { font-size: 0.95rem; color: var(--text-primary); font-weight: 500; }

/* =========================================
   数据统计条
   ========================================= */
.stats-bar {
  background: var(--dark-2);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 32px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item .num {
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}
.stat-item .label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

/* =========================================
   通知栏
   ========================================= */
.notice-bar {
  background: linear-gradient(90deg, var(--primary-dark), var(--dark-4));
  padding: 10px 0;
  overflow: hidden;
}
.notice-bar .inner {
  display: flex;
  align-items: center;
  gap: 12px;
}
.notice-bar .notice-label {
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 4px;
  flex-shrink: 0;
  font-weight: 700;
}
.notice-scroll {
  overflow: hidden;
  flex: 1;
}
.notice-scroll .scroll-text {
  display: flex;
  gap: 40px;
  animation: scrollText 30s linear infinite;
  white-space: nowrap;
}
.notice-scroll .scroll-text span { font-size: 0.85rem; color: var(--text-secondary); }
@keyframes scrollText {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* =========================================
   加载更多
   ========================================= */
.load-more { text-align: center; padding: 32px 0; }

/* =========================================
   响应式
   ========================================= */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open { display: flex; position: fixed; top: 68px; left: 0; right: 0; background: var(--dark-2); border-bottom: 1px solid var(--border); padding: 16px 20px; flex-direction: column; align-items: flex-start; }
  .main-nav.open ul { flex-direction: column; width: 100%; gap: 4px; }
  .main-nav.open ul li a { padding: 10px 16px; }
  .nav-toggle { display: flex; }
  .header-search { display: none; }
  .grid-2, .grid-3, .grid-4, .grid-5 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .nav-search-bar .hot-tags { display: none; }
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 1.5rem; }
  .footer-qrcodes { flex-direction: column; align-items: center; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}