/* 91网 - 玻璃态梦幻科技风格主样式表 */
/* 色彩体系 */
:root {
  --bg-primary: #111111;
  --bg-secondary: #1A1A1A;
  --accent-cyan: #A0F0FF;
  --accent-purple: #D8A0FF;
  --accent-warm: #F8F0E8;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --text-primary: #F8F0E8;
  --text-secondary: rgba(248, 240, 232, 0.7);
  --text-muted: rgba(248, 240, 232, 0.45);
  --gradient-hero: linear-gradient(135deg, #111111 0%, #1A1A1A 40%, #0d1a2a 100%);
  --gradient-accent: linear-gradient(135deg, #A0F0FF 0%, #D8A0FF 100%);
  --gradient-warm: linear-gradient(135deg, #D8A0FF 0%, #F8F0E8 100%);
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 基础重置 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* 粒子背景 */
#particles-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* 页面内容层 */
.page-wrapper { position: relative; z-index: 1; }

/* 玻璃态卡片 */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}
.glass-card:hover {
  border-color: rgba(160, 240, 255, 0.25);
  box-shadow: 0 12px 48px rgba(160, 240, 255, 0.12), var(--glass-shadow);
  transform: translateY(-4px);
}

/* 顶部导航 */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 5%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(17, 17, 17, 0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--glass-border);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.nav-logo .logo-icon {
  width: 38px; height: 38px;
  background: var(--gradient-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: #111;
}
.nav-logo .logo-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-menu a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--accent-cyan);
  background: rgba(160, 240, 255, 0.08);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* 搜索框 */
.search-bar-wrap {
  padding: 16px 5%;
  background: rgba(17, 17, 17, 0.6);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  margin-top: 70px;
}
.search-bar {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  overflow: hidden;
  transition: var(--transition);
}
.search-bar:focus-within {
  border-color: rgba(160, 240, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(160, 240, 255, 0.08);
}
.search-bar input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  padding: 12px 20px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-main);
}
.search-bar input::placeholder { color: var(--text-muted); }
.search-bar button {
  padding: 12px 24px;
  background: var(--gradient-accent);
  border: none;
  color: #111;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
}
.search-bar button:hover { opacity: 0.85; }

/* Hero Banner */
.hero-section {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45) saturate(1.2);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(17,17,17,0.3) 0%, rgba(17,17,17,0.7) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 5%;
  max-width: 900px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(160, 240, 255, 0.1);
  border: 1px solid rgba(160, 240, 255, 0.3);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  letter-spacing: 0.08em;
}
.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-title .brand {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  padding: 14px 36px;
  background: var(--gradient-accent);
  border: none;
  border-radius: 50px;
  color: #111;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(160, 240, 255, 0.35); }
.btn-secondary {
  padding: 14px 36px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  backdrop-filter: blur(12px);
}
.btn-secondary:hover { border-color: rgba(160, 240, 255, 0.4); color: var(--accent-cyan); transform: translateY(-2px); }

/* 通用区块 */
.section {
  padding: 90px 5%;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(216, 160, 255, 0.12);
  border: 1px solid rgba(216, 160, 255, 0.3);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--accent-purple);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.section-title .highlight {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* 视频卡片网格 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(16px);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  border-color: rgba(160, 240, 255, 0.25);
  box-shadow: 0 12px 48px rgba(160, 240, 255, 0.1);
  transform: translateY(-6px);
}
.video-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e, #16213e, #0f3460);
}
.video-thumb-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s 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;
  opacity: 0;
  transition: var(--transition);
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 60px; height: 60px;
  background: rgba(160, 240, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(160, 240, 255, 0.5);
  transition: var(--transition);
}
.play-icon::after {
  content: '';
  border-left: 22px solid #111;
  border-top: 13px solid transparent;
  border-bottom: 13px solid transparent;
  margin-left: 4px;
}
.video-card:hover .play-icon { transform: scale(1.1); }
.video-duration {
  position: absolute;
  bottom: 10px; right: 10px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  gap: 14px;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(160, 240, 255, 0.1);
  border-radius: 50px;
  font-size: 0.72rem;
  color: var(--accent-cyan);
  margin-top: 10px;
}

/* 弹幕区 */
.danmaku-wrap {
  position: relative;
  overflow: hidden;
  height: 48px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  margin: 20px 0;
}
.danmaku-track {
  display: flex;
  gap: 60px;
  position: absolute;
  white-space: nowrap;
  animation: danmaku-scroll 25s linear infinite;
  top: 50%;
  transform: translateY(-50%);
  left: 100%;
}
@keyframes danmaku-scroll {
  from { transform: translateX(0) translateY(-50%); left: 100%; }
  to { transform: translateX(-100%) translateY(-50%); left: 0; }
}
.danmaku-item {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 4px 14px;
  background: rgba(255,255,255,0.05);
  border-radius: 50px;
  border: 1px solid var(--glass-border);
  flex-shrink: 0;
}

/* 统计数字 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin: 50px 0;
}
.stat-item {
  text-align: center;
  padding: 30px 20px;
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 专家卡片 */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}
.expert-card {
  text-align: center;
  padding: 36px 20px;
}
.expert-avatar {
  width: 90px; height: 90px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: #111;
  border: 3px solid rgba(160, 240, 255, 0.3);
}
.expert-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.expert-title {
  font-size: 0.82rem;
  color: var(--accent-purple);
  margin-bottom: 12px;
}
.expert-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 评价卡片 */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  padding: 28px;
}
.review-stars {
  color: #FFD700;
  font-size: 1rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}
.review-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
  font-style: italic;
}
.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.review-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: #111;
  flex-shrink: 0;
}
.review-name { font-size: 0.88rem; font-weight: 600; }
.review-date { font-size: 0.75rem; color: var(--text-muted); }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
}
.faq-question {
  padding: 20px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}
.faq-question:hover { color: var(--accent-cyan); }
.faq-question .faq-icon {
  font-size: 1.2rem;
  color: var(--accent-cyan);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.8;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* 合作伙伴 */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
}
.partner-item {
  padding: 20px;
  text-align: center;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition);
}
.partner-item:hover { color: var(--accent-cyan); border-color: rgba(160, 240, 255, 0.3); }

/* 联系区块 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
  align-items: start;
}
.contact-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--accent-cyan);
}
.contact-info p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  line-height: 1.7;
}
.qr-box {
  width: 120px; height: 120px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  padding: 10px;
  margin-top: 12px;
}

/* 页脚 */
.site-footer {
  background: rgba(10, 10, 10, 0.95);
  border-top: 1px solid var(--glass-border);
  padding: 50px 5% 30px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .brand-name {
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 300px;
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.footer-col a {
  display: block;
  font-size: 0.83rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--accent-cyan); }
.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); transition: var(--transition); }
.footer-bottom a:hover { color: var(--accent-cyan); }

/* 话题卡片 */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.topic-card {
  padding: 24px;
  border-radius: var(--radius-lg);
}
.topic-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(216, 160, 255, 0.12);
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--accent-purple);
  margin-bottom: 12px;
}
.topic-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.topic-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}
.topic-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
}

/* AI工具卡片 */
.ai-tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.ai-tool-card {
  padding: 30px 24px;
}
.ai-tool-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
}
.ai-tool-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.ai-tool-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.ai-tool-badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(160, 240, 255, 0.1);
  border: 1px solid rgba(160, 240, 255, 0.25);
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--accent-cyan);
}

/* 面包屑 */
.breadcrumb {
  padding: 16px 5%;
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 70px;
}
.breadcrumb a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb a:hover { color: var(--accent-cyan); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }

/* 内页 Hero */
.inner-hero {
  padding: 80px 5% 60px;
  text-align: center;
  background: linear-gradient(180deg, rgba(160,240,255,0.04) 0%, transparent 100%);
}
.inner-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.inner-hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* 响应式 */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; position: absolute; top: 70px; left: 0; right: 0; background: rgba(17,17,17,0.97); flex-direction: column; padding: 20px 5%; gap: 4px; border-bottom: 1px solid var(--glass-border); }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: flex; }
  .footer-top { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .section { padding: 60px 4%; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .review-grid { grid-template-columns: 1fr; }
}

/* 动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(160, 240, 255, 0.2); }
  50% { box-shadow: 0 0 40px rgba(160, 240, 255, 0.4); }
}
.animate-fade-up { animation: fadeInUp 0.7s ease forwards; }
.animate-float { animation: float 4s ease-in-out infinite; }
.glow-pulse { animation: glow-pulse 3s ease-in-out infinite; }

/* 分隔线 */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
  margin: 0 5%;
}

/* 标签云 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tag-item {
  padding: 6px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.tag-item:hover { border-color: rgba(160, 240, 255, 0.4); color: var(--accent-cyan); }

/* 社交图标 */
.social-links { display: flex; gap: 12px; margin-top: 16px; }
.social-link {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: var(--transition);
  color: var(--text-muted);
}
.social-link:hover { border-color: rgba(160, 240, 255, 0.4); color: var(--accent-cyan); }

/* 滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(160, 240, 255, 0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(160, 240, 255, 0.4); }