/* =============================================
   玩物社区 - 主样式表
   版权所有 © 2025 玩物社区
   域名: fffo6o.cn
   ============================================= */

/* CSS变量 */
:root {
  --primary: #ff2d78;
  --secondary: #00e5ff;
  --accent: #a855f7;
  --dark: #0d0118;
  --dark2: #1a0533;
  --dark3: #2d0a4e;
  --card-bg: #1e0a38;
  --text: #f0e6ff;
  --text-muted: #9d7ec9;
  --border: rgba(168,85,247,0.25);
  --glow-pink: 0 0 20px rgba(255,45,120,0.5);
  --glow-cyan: 0 0 20px rgba(0,229,255,0.5);
  --gradient-main: linear-gradient(135deg, #ff2d78 0%, #a855f7 50%, #00e5ff 100%);
  --gradient-dark: linear-gradient(180deg, #0d0118 0%, #1a0533 100%);
  --font-main: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

/* 滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark2); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* =============================================
   顶部公告栏
   ============================================= */
.top-bar {
  background: var(--gradient-main);
  color: #fff;
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.top-bar a { color: #fff; text-decoration: underline; }

/* =============================================
   导航栏
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13,1,24,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 20px rgba(168,85,247,0.15);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 68px;
  gap: 20px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.site-logo img.logo-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 8px;
}
.site-logo img.logo-full {
  height: 36px;
  width: auto;
  object-fit: contain;
}
.site-logo .brand-text {
  font-size: 20px;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

/* 主导航 */
.main-nav { flex: 1; }
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.main-nav ul li a {
  display: block;
  padding: 8px 14px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav ul li a:hover,
.main-nav ul li a.active {
  color: #fff;
  background: rgba(168,85,247,0.2);
}
.main-nav ul li a.active {
  color: var(--primary);
}

/* 搜索框 */
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 6px 16px;
  gap: 8px;
  min-width: 200px;
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: var(--glow-pink);
}
.header-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
  width: 100%;
  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);
  padding: 0;
  display: flex;
  align-items: center;
  transition: var(--transition);
}
.header-search button:hover { color: var(--primary); }
.search-icon { width: 16px; height: 16px; }

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

/* =============================================
   搜索栏（导航下方）
   ============================================= */
.nav-search-bar {
  background: rgba(26,5,51,0.9);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
}
.nav-search-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-search-form {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 600px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 30px;
  overflow: hidden;
  transition: var(--transition);
}
.nav-search-form:focus-within {
  border-color: var(--secondary);
  box-shadow: var(--glow-cyan);
}
.nav-search-form input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 14px;
  padding: 10px 20px;
  font-family: var(--font-main);
}
.nav-search-form input::placeholder { color: var(--text-muted); }
.nav-search-form button {
  background: var(--gradient-main);
  border: none;
  cursor: pointer;
  color: #fff;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-main);
  transition: var(--transition);
}
.nav-search-form button:hover { opacity: 0.85; }
.search-hot-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-muted);
}
.search-hot-tags span { color: var(--primary); font-weight: 600; }
.search-hot-tags a {
  background: rgba(168,85,247,0.15);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 12px;
  transition: var(--transition);
}
.search-hot-tags a:hover { background: rgba(255,45,120,0.2); color: var(--primary); border-color: var(--primary); }

/* =============================================
   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); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--text); }

/* =============================================
   Hero Banner
   ============================================= */
.hero-banner {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-banner .banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero-banner .banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,1,24,0.85) 0%, rgba(26,5,51,0.7) 50%, rgba(13,1,24,0.6) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 20px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,45,120,0.15);
  border: 1px solid rgba(255,45,120,0.4);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 20px;
  animation: pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 8px rgba(255,45,120,0.3); }
  50% { box-shadow: 0 0 20px rgba(255,45,120,0.6); }
}
.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-content h1 .brand { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-content p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(240,230,255,0.85);
  max-width: 600px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-main);
  color: #fff;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--glow-pink);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,45,120,0.5); color: #fff; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--secondary);
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid var(--secondary);
  cursor: pointer;
  transition: var(--transition);
}
.btn-outline:hover { background: rgba(0,229,255,0.1); transform: translateY(-2px); color: var(--secondary); }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.hero-stat .num {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* =============================================
   通用区块
   ============================================= */
.section { padding: 70px 20px; }
.section-inner { max-width: 1280px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag {
  display: inline-block;
  background: rgba(255,45,120,0.12);
  color: var(--primary);
  border: 1px solid rgba(255,45,120,0.3);
  padding: 4px 14px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 12px;
}
.section-header h2 .highlight { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-header p { color: var(--text-muted); font-size: 15px; max-width: 560px; margin: 0 auto; }
.section-alt { background: rgba(26,5,51,0.5); }

/* =============================================
   视频卡片
   ============================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: 0 12px 40px rgba(255,45,120,0.2);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--dark3);
}
.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);
  transition: var(--transition);
  opacity: 0;
}
.video-card:hover .video-play-btn { opacity: 1; background: rgba(0,0,0,0.4); }
.play-icon {
  width: 60px;
  height: 60px;
  background: rgba(255,45,120,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: var(--glow-pink);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon svg { width: 24px; height: 24px; fill: #fff; margin-left: 4px; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.8);
  color: #fff;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}
.video-quality {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.video-info { padding: 16px; }
.video-info h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  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;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}
.video-meta .author { display: flex; align-items: center; gap: 6px; }
.video-meta .author img { width: 20px; height: 20px; border-radius: 50%; object-fit: cover; }
.video-stats { display: flex; gap: 12px; }
.video-stats span { display: flex; align-items: center; gap: 4px; }
.video-tag {
  display: inline-block;
  background: rgba(168,85,247,0.15);
  color: var(--accent);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 8px;
  margin-top: 8px;
  border: 1px solid rgba(168,85,247,0.2);
}

/* =============================================
   模块标签页
   ============================================= */
.tab-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.tab-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
}
.tab-btn:hover { border-color: var(--primary); color: var(--primary); }
.tab-btn.active { background: var(--gradient-main); color: #fff; border-color: transparent; box-shadow: var(--glow-pink); }

/* =============================================
   专家卡片
   ============================================= */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 8px 30px rgba(168,85,247,0.2); }
.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 16px;
  border: 3px solid var(--accent);
  object-fit: cover;
  background: var(--dark3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  overflow: hidden;
}
.expert-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.expert-card .role { color: var(--primary); font-size: 13px; margin-bottom: 12px; }
.expert-card p { color: var(--text-muted); font-size: 13px; line-height: 1.6; margin-bottom: 16px; }
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 6px 14px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  font-family: var(--font-main);
}
.btn-sm:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm.primary { background: var(--gradient-main); color: #fff; border-color: transparent; }
.expert-awards { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-bottom: 12px; }
.award-badge { background: rgba(255,200,0,0.1); color: #ffc800; font-size: 11px; padding: 2px 8px; border-radius: 8px; border: 1px solid rgba(255,200,0,0.2); }

/* =============================================
   FAQ
   ============================================= */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--accent); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  gap: 12px;
}
.faq-question .q-icon { color: var(--primary); font-size: 18px; font-weight: 900; flex-shrink: 0; }
.faq-question .arrow { color: var(--text-muted); transition: var(--transition); flex-shrink: 0; }
.faq-item.open .faq-question .arrow { transform: rotate(180deg); color: var(--primary); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* =============================================
   用户评论
   ============================================= */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}
.review-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-user .name { font-size: 14px; font-weight: 700; }
.review-user .meta { font-size: 12px; color: var(--text-muted); }
.review-stars { display: flex; gap: 2px; margin-bottom: 10px; }
.review-stars span { color: #ffc800; font-size: 14px; }
.review-text { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.review-game { margin-top: 12px; font-size: 12px; color: var(--accent); }

/* =============================================
   AI赋能模块
   ============================================= */
.ai-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.ai-feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.ai-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-main);
}
.ai-feature-card:hover { transform: translateY(-4px); border-color: var(--secondary); box-shadow: var(--glow-cyan); }
.ai-icon { font-size: 2.5rem; margin-bottom: 16px; }
.ai-feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.ai-feature-card p { color: var(--text-muted); font-size: 14px; line-height: 1.7; }
.ai-feature-card .ai-tag { margin-top: 14px; display: inline-block; background: rgba(0,229,255,0.1); color: var(--secondary); font-size: 11px; padding: 3px 10px; border-radius: 10px; border: 1px solid rgba(0,229,255,0.2); }

/* =============================================
   社区功能
   ============================================= */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.community-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}
.community-card:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: var(--glow-pink); }
.community-icon { font-size: 3rem; margin-bottom: 12px; }
.community-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.community-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.community-count { margin-top: 12px; font-size: 12px; color: var(--accent); font-weight: 600; }

/* =============================================
   合作品牌
   ============================================= */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.partner-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}
.partner-item:hover { border-color: var(--accent); color: var(--text); transform: scale(1.03); }
.partner-item .p-icon { font-size: 2rem; margin-bottom: 8px; }

/* =============================================
   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: 800; margin-bottom: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}
.contact-item .c-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }
.contact-item .c-label { font-size: 12px; color: var(--text-muted); margin-bottom: 2px; }
.contact-item .c-value { font-size: 14px; font-weight: 600; }
.qr-codes { display: flex; gap: 24px; margin-top: 24px; }
.qr-item { text-align: center; }
.qr-item img { width: 100px; height: 100px; border-radius: 8px; border: 2px solid var(--border); }
.qr-item p { font-size: 12px; color: var(--text-muted); margin-top: 6px; }
.contact-social h3 { font-size: 20px; font-weight: 800; margin-bottom: 20px; }
.social-links { display: flex; flex-direction: column; gap: 12px; }
.social-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  transition: var(--transition);
  color: var(--text);
}
.social-link:hover { border-color: var(--primary); transform: translateX(4px); color: var(--text); }
.social-link .s-icon { font-size: 1.3rem; }
.social-link .s-info .s-name { font-size: 14px; font-weight: 600; }
.social-link .s-info .s-handle { font-size: 12px; color: var(--text-muted); }

/* =============================================
   分享按钮
   ============================================= */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}
.share-bar .share-label { font-size: 13px; color: var(--text-muted); font-weight: 600; }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  font-family: var(--font-main);
}
.share-btn:hover { transform: translateY(-2px); }
.share-btn.wx:hover { border-color: #07c160; color: #07c160; }
.share-btn.wb:hover { border-color: #e6162d; color: #e6162d; }
.share-btn.dy:hover { border-color: #fe2c55; color: #fe2c55; }
.share-btn.bili:hover { border-color: #00a1d6; color: #00a1d6; }
.share-btn.qq:hover { border-color: #12b7f5; color: #12b7f5; }

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  padding: 60px 20px 0;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand .brand-desc { color: var(--text-muted); font-size: 14px; line-height: 1.8; margin: 16px 0 20px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; }
.footer-brand .footer-logo img { height: 32px; width: auto; }
.footer-brand .footer-logo span { font-size: 18px; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { color: var(--text-muted); font-size: 13px; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary); }
.footer-icp { display: flex; gap: 16px; flex-wrap: wrap; }

/* =============================================
   内页通用
   ============================================= */
.page-hero {
  background: var(--gradient-dark);
  padding: 60px 20px 40px;
  border-bottom: 1px solid var(--border);
}
.page-hero-inner { max-width: 1280px; margin: 0 auto; }
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; margin-bottom: 12px; }
.page-hero h1 .brand { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-hero p { color: var(--text-muted); font-size: 15px; max-width: 600px; }

/* =============================================
   加载动画
   ============================================= */
.skeleton {
  background: linear-gradient(90deg, var(--dark3) 25%, rgba(168,85,247,0.1) 50%, var(--dark3) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 8px;
}
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =============================================
   滚动动画
   ============================================= */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open { display: block; position: absolute; top: 68px; left: 0; right: 0; background: rgba(13,1,24,0.98); border-bottom: 1px solid var(--border); padding: 12px 0; }
  .main-nav.open ul { flex-direction: column; padding: 0 20px; }
  .main-nav.open ul li a { padding: 12px 0; border-bottom: 1px solid var(--border); border-radius: 0; }
  .hamburger { display: flex; }
  .header-search { display: none; }
  .hero-banner { min-height: 420px; }
  .hero-stats { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .search-hot-tags { display: none; }
}

@media (max-width: 480px) {
  .section { padding: 48px 16px; }
  .hero-content { padding: 40px 16px; }
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-outline { justify-content: center; }
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
}

/* =============================================
   视频模态框
   ============================================= */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,0.9);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.video-modal.open { display: flex; }
.modal-inner {
  background: var(--dark2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  max-width: 800px;
  width: 100%;
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 15px; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 20px; transition: var(--transition); }
.modal-close:hover { color: var(--primary); }
.modal-video { aspect-ratio: 16/9; background: #000; display: flex; align-items: center; justify-content: center; }
.modal-video-placeholder { text-align: center; color: var(--text-muted); }
.modal-video-placeholder .big-play { font-size: 4rem; color: var(--primary); margin-bottom: 12px; }
.modal-video-placeholder p { font-size: 14px; }

/* =============================================
   返回顶部
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 500;
  border: none;
  box-shadow: var(--glow-pink);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); }
.back-to-top svg { width: 20px; height: 20px; fill: #fff; }

/* =============================================
   数字统计
   ============================================= */
.stats-bar {
  background: var(--dark2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 32px 20px;
}
.stats-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-item .num {
  font-size: 2.2rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}
.stat-item .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

@media (max-width: 600px) {
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
}


/* =============================================
   v2.0 新增模块样式
   ============================================= */

/* 公告滚动栏 */
.notice-bar {
  background: linear-gradient(90deg, rgba(255,45,120,0.10), rgba(168,85,247,0.10));
  border-bottom: 1px solid rgba(168,85,247,0.2);
  padding: 9px 0;
  overflow: hidden;
}
.notice-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.notice-tag {
  background: var(--gradient-main);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 10px;
  white-space: nowrap;
  flex-shrink: 0;
}
.notice-scroll {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 13px;
  overflow: hidden;
  white-space: nowrap;
}
.notice-scroll a { color: var(--text-muted); text-decoration: none; }
.notice-scroll a:hover { color: var(--primary); }
.notice-sep { color: var(--border); }

/* 视频发布日期 */
.video-date {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* 荣誉资质网格 */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.honor-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  transition: transform 0.3s, border-color 0.3s;
}
.honor-card:hover {
  transform: translateY(-4px);
  border-color: rgba(168,85,247,0.5);
}
.honor-icon { font-size: 2.2rem; margin-bottom: 12px; }
.honor-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.honor-org { font-size: 12px; color: var(--primary); margin-bottom: 10px; font-weight: 600; }
.honor-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* 时间线 */
.timeline { max-width: 700px; margin: 32px auto 0; }
.timeline-item { display: flex; gap: 20px; margin-bottom: 28px; align-items: flex-start; }
.timeline-year {
  flex-shrink: 0;
  width: 72px;
  text-align: right;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  font-size: 14px;
  padding-top: 14px;
}
.timeline-content {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  flex: 1;
  border-left: 3px solid rgba(168,85,247,0.4);
}
.timeline-content h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.timeline-content p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* 友情链接栏 */
.friendlinks-bar {
  background: rgba(255,255,255,0.02);
  border-top: 1px solid var(--border);
  padding: 12px 0;
}
.friendlinks-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}
.fl-label { color: var(--text-muted); font-weight: 600; flex-shrink: 0; }
.friendlinks-inner a { color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.friendlinks-inner a:hover { color: var(--primary); }

/* footer荣誉徽章 */
.footer-honors { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.honor-badge {
  background: rgba(168,85,247,0.1);
  border: 1px solid rgba(168,85,247,0.25);
  color: var(--accent);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 10px;
}

/* footer社交图标 */
.footer-social-icons { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.footer-social-icons a {
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s;
}
.footer-social-icons a:hover { border-color: var(--primary); color: var(--primary); }

/* footer ICP */
.footer-icp { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; font-size: 12px; color: var(--text-muted); margin-top: 8px; }
.icp-text a { color: var(--text-muted); text-decoration: none; }
.icp-text a:hover { color: var(--primary); }
.update-time { color: var(--text-muted); }

/* 隐私/协议页面内容 */
.policy-content h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--text);
  border-left: 3px solid var(--primary);
  padding-left: 12px;
}
.policy-content p, .policy-content li {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 8px;
}
.policy-content ul { padding-left: 20px; }
.policy-content a { color: var(--primary); }

/* 屏幕阅读器辅助 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* 媒体卡片 */
.media-card { transition: transform 0.3s; }
.media-card:hover { transform: translateY(-3px); }

/* 响应式补充 */
@media (max-width: 768px) {
  .honors-grid { grid-template-columns: 1fr; }
  .timeline-item { flex-direction: column; gap: 8px; }
  .timeline-year { width: auto; text-align: left; padding-top: 0; }
  .notice-scroll { display: none; }
  .friendlinks-inner { display: none; }
}