/* =============================================
   91爆料网 - 主样式文件
   品牌色: 深紫 #1A0533 | 电光蓝 #3B82F6 | 青色 #06B6D4 | 亮紫 #8B5CF6
   ============================================= */

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  background: #0D0118;
  color: #E2E8F0;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: #8B5CF6; text-decoration: none; transition: color .25s; }
a:hover { color: #06B6D4; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ---- CSS Variables ---- */
:root {
  --primary: #8B5CF6;
  --primary-dark: #6D28D9;
  --accent: #06B6D4;
  --accent2: #3B82F6;
  --bg-dark: #0D0118;
  --bg-card: #160328;
  --bg-card2: #1E0A3C;
  --border: rgba(139,92,246,.25);
  --text: #E2E8F0;
  --text-muted: #94A3B8;
  --gradient: linear-gradient(135deg, #6D28D9 0%, #3B82F6 50%, #06B6D4 100%);
  --gradient-card: linear-gradient(145deg, #1E0A3C 0%, #160328 100%);
  --shadow: 0 8px 32px rgba(139,92,246,.18);
  --radius: 12px;
  --radius-lg: 20px;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #0D0118; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* =============================================
   HEADER / NAVIGATION
   ============================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(13,1,24,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: all .3s;
}
.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: 42px;
  width: auto;
}
.site-logo .logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.main-nav a {
  color: #CBD5E1;
  font-size: .9rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  white-space: nowrap;
  transition: all .25s;
}
.main-nav a:hover,
.main-nav a.active {
  color: #fff;
  background: rgba(139,92,246,.2);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.btn-join {
  background: var(--gradient);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 20px;
  font-size: .85rem;
  font-weight: 600;
  transition: opacity .25s, transform .2s;
}
.btn-join:hover { opacity: .88; transform: translateY(-1px); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s;
}

/* ---- Search Bar (below nav) ---- */
.search-bar-wrap {
  background: rgba(22,3,40,.95);
  border-bottom: 1px solid var(--border);
  padding: 8px 20px;
}
.search-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.search-form {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 600px;
  background: rgba(139,92,246,.1);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  transition: border-color .25s;
}
.search-form:focus-within { border-color: var(--primary); }
.search-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  padding: 8px 16px;
  font-size: .9rem;
}
.search-form input::placeholder { color: var(--text-muted); }
.search-form button {
  background: var(--gradient);
  border: none;
  color: #fff;
  padding: 8px 18px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 600;
  transition: opacity .2s;
}
.search-form button:hover { opacity: .85; }
.search-hot-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.search-hot-tags span { color: var(--text-muted); font-size: .8rem; }
.hot-tag {
  color: var(--accent);
  font-size: .8rem;
  padding: 2px 10px;
  border: 1px solid rgba(6,182,212,.3);
  border-radius: 12px;
  cursor: pointer;
  transition: all .2s;
}
.hot-tag:hover { background: rgba(6,182,212,.15); }

/* =============================================
   HERO BANNER
   ============================================= */
.hero-banner {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 110px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner_bg.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(.45);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,1,24,.3) 0%, rgba(13,1,24,.6) 60%, #0D0118 100%);
}
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 3px; height: 3px;
  background: var(--primary);
  border-radius: 50%;
  animation: float-particle linear infinite;
  opacity: .6;
}
@keyframes float-particle {
  0% { transform: translateY(100vh) translateX(0); opacity: 0; }
  10% { opacity: .6; }
  90% { opacity: .6; }
  100% { transform: translateY(-10vh) translateX(50px); opacity: 0; }
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 20px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139,92,246,.15);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: .85rem;
  color: var(--accent);
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.3); }
}
.hero-title {
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, #C4B5FD 40%, #06B6D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: #94A3B8;
  margin-bottom: 32px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.hero-stat { text-align: center; }
.hero-stat .num {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label { font-size: .8rem; color: var(--text-muted); }
.hero-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  background: var(--gradient);
  color: #fff;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 4px 20px rgba(139,92,246,.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(139,92,246,.5); color: #fff; }
.btn-outline {
  background: transparent;
  color: #fff;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,.3);
  cursor: pointer;
  transition: all .2s;
}
.btn-outline:hover { border-color: var(--primary); background: rgba(139,92,246,.1); color: #fff; }
.hero-scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: .8rem;
  animation: bounce-hint 2s infinite;
}
@keyframes bounce-hint {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}
.scroll-arrow { font-size: 1.2rem; }

/* =============================================
   SECTION COMMONS
   ============================================= */
.section { padding: 80px 20px; }
.section-inner { max-width: 1280px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-tag {
  display: inline-block;
  background: rgba(139,92,246,.15);
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.section-title span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-desc { color: var(--text-muted); font-size: 1rem; max-width: 560px; margin: 0 auto; }

/* =============================================
   VIDEO CARDS
   ============================================= */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.video-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
  cursor: pointer;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: #160328;
}
.video-thumb img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.35);
  opacity: 0;
  transition: opacity .3s;
}
.video-card:hover .play-btn { opacity: 1; }
.play-icon {
  width: 56px; height: 56px;
  background: rgba(139,92,246,.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(.8);
  transition: transform .3s;
  box-shadow: 0 4px 20px rgba(139,92,246,.5);
}
.video-card:hover .play-icon { transform: scale(1); }
.play-icon svg { width: 22px; height: 22px; fill: #fff; margin-left: 3px; }
.video-duration {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,.75);
  color: #fff;
  font-size: .75rem;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-tag-badge {
  position: absolute;
  top: 8px; left: 8px;
  background: var(--gradient);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 14px 16px; }
.video-title {
  font-size: .95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .78rem;
  color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-meta svg { width: 13px; height: 13px; fill: currentColor; }
.video-author {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.author-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.author-name { font-size: .8rem; color: var(--text-muted); }

/* =============================================
   TABS
   ============================================= */
.tabs-wrap { margin-bottom: 30px; }
.tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.tab-btn {
  background: rgba(139,92,246,.08);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 20px;
  font-size: .88rem;
  cursor: pointer;
  transition: all .25s;
}
.tab-btn:hover, .tab-btn.active {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
}

/* =============================================
   FEATURE MODULES
   ============================================= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: transform .3s, box-shadow .3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.5rem;
}
.feature-title { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feature-desc { font-size: .88rem; color: var(--text-muted); line-height: 1.6; }

/* =============================================
   EXPERTS SECTION
   ============================================= */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: transform .3s, box-shadow .3s;
}
.expert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.expert-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--gradient);
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 3px solid var(--border);
}
.expert-name { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.expert-role { font-size: .82rem; color: var(--accent); margin-bottom: 10px; }
.expert-desc { font-size: .83rem; color: var(--text-muted); line-height: 1.55; margin-bottom: 14px; }
.expert-tags { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 16px; }
.expert-tag {
  background: rgba(139,92,246,.12);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: .72rem;
  padding: 2px 8px;
  border-radius: 10px;
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 6px 14px;
  border-radius: 16px;
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}
.btn-sm-primary { background: var(--gradient); color: #fff; border: none; }
.btn-sm-outline { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-sm-outline:hover { border-color: var(--primary); color: var(--primary); }

/* =============================================
   REVIEWS / TESTIMONIALS
   ============================================= */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: transform .3s;
}
.review-card:hover { transform: translateY(-3px); }
.review-stars { color: #FBBF24; font-size: 1rem; margin-bottom: 12px; }
.review-text { font-size: .9rem; color: #CBD5E1; line-height: 1.65; margin-bottom: 16px; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.review-name { font-size: .88rem; font-weight: 600; color: #fff; }
.review-date { font-size: .75rem; color: var(--text-muted); }

/* =============================================
   FAQ SECTION
   ============================================= */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  color: #fff;
  font-size: .95rem;
  transition: background .2s;
}
.faq-question:hover { background: rgba(139,92,246,.08); }
.faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(139,92,246,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .3s, background .3s;
  font-size: .9rem;
  color: var(--primary);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--gradient); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s;
  padding: 0 22px;
  color: var(--text-muted);
  font-size: .9rem;
  line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 22px 18px; }

/* =============================================
   PARTNERS / LOGO WALL
   ============================================= */
.partners-track {
  overflow: hidden;
  position: relative;
}
.partners-track::before,
.partners-track::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 80px;
  z-index: 2;
}
.partners-track::before { left: 0; background: linear-gradient(to right, #0D0118, transparent); }
.partners-track::after { right: 0; background: linear-gradient(to left, #0D0118, transparent); }
.partners-inner {
  display: flex;
  gap: 30px;
  animation: scroll-partners 30s linear infinite;
  width: max-content;
}
.partners-inner:hover { animation-play-state: paused; }
@keyframes scroll-partners {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.partner-logo {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  height: 60px;
  color: var(--text-muted);
  font-size: .88rem;
  font-weight: 600;
  transition: all .3s;
  white-space: nowrap;
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary); }

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info h3 { font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}
.contact-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(139,92,246,.15);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-label { font-size: .8rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-value { font-size: .95rem; color: #fff; font-weight: 500; }
.qr-codes { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item img { width: 110px; height: 110px; border-radius: 10px; border: 2px solid var(--border); }
.qr-item p { font-size: .78rem; color: var(--text-muted); margin-top: 6px; }

/* =============================================
   SOCIAL SHARE
   ============================================= */
.social-share {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.social-share span { color: var(--text-muted); font-size: .88rem; }
.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  transition: all .2s;
}
.share-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(139,92,246,.08); }
.share-btn.wechat:hover { border-color: #07C160; color: #07C160; background: rgba(7,193,96,.08); }
.share-btn.weibo:hover { border-color: #E6162D; color: #E6162D; background: rgba(230,22,45,.08); }
.share-btn.douyin:hover { border-color: #FE2C55; color: #FE2C55; background: rgba(254,44,85,.08); }
.share-btn.bilibili:hover { border-color: #00A1D6; color: #00A1D6; background: rgba(0,161,214,.08); }

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: #080112;
  border-top: 1px solid var(--border);
  padding: 60px 20px 30px;
}
.footer-inner { max-width: 1280px; margin: 0 auto; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand .footer-logo img { height: 36px; }
.footer-brand .footer-logo span {
  font-size: 1.2rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p { font-size: .88rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 16px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(139,92,246,.1);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: .9rem;
  transition: all .2s;
}
.footer-social a:hover { background: var(--gradient); border-color: transparent; color: #fff; }
.footer-col h4 { font-size: .95rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: .85rem; color: var(--text-muted); transition: color .2s; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: .82rem; color: var(--text-muted); }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary); }
.update-time { font-size: .78rem; color: var(--text-muted); }

/* =============================================
   PAGE HERO (inner pages)
   ============================================= */
.page-hero {
  padding: 140px 20px 60px;
  text-align: center;
  background: linear-gradient(180deg, rgba(139,92,246,.08) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; color: #fff; margin-bottom: 10px; }
.page-hero p { color: var(--text-muted); font-size: 1rem; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  font-size: .82rem;
  color: var(--text-muted);
  margin-top: 14px;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb span { color: var(--text-muted); }

/* =============================================
   PAGINATION
   ============================================= */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .88rem;
  cursor: pointer;
  transition: all .2s;
}
.page-btn:hover, .page-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
}

/* =============================================
   MODAL (Video Player)
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  overflow: hidden;
  transform: scale(.9);
  transition: transform .3s;
}
.modal-overlay.open .modal-box { transform: scale(1); }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 1rem; font-weight: 700; color: #fff; }
.modal-close {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: rgba(255,255,255,.08);
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}
.modal-close:hover { background: rgba(255,0,0,.2); color: #fff; }
.modal-video { width: 100%; aspect-ratio: 16/9; background: #000; }
.modal-video video { width: 100%; height: 100%; }

/* =============================================
   NOTICE BAR
   ============================================= */
.notice-bar {
  background: linear-gradient(90deg, rgba(139,92,246,.15), rgba(6,182,212,.15));
  border-bottom: 1px solid var(--border);
  padding: 8px 20px;
  overflow: hidden;
}
.notice-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.notice-label {
  background: var(--gradient);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}
.notice-scroll {
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
}
.notice-text {
  display: inline-block;
  font-size: .82rem;
  color: var(--text-muted);
  animation: scroll-notice 25s linear infinite;
}
@keyframes scroll-notice {
  0% { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@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: flex;
    flex-direction: column;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(13,1,24,.98);
    padding: 20px;
    border-bottom: 1px solid var(--border);
    z-index: 999;
    gap: 4px;
  }
  .main-nav.open a { padding: 12px 16px; border-radius: 8px; }
  .hamburger { display: flex; }
  .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; }
  .header-inner { gap: 12px; }
}
@media (max-width: 480px) {
  .section { padding: 50px 16px; }
  .hero-btns { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline { width: 100%; max-width: 280px; text-align: center; }
  .video-grid { grid-template-columns: 1fr; }
  .experts-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
}

/* =============================================
   UTILITY CLASSES
   ============================================= */
.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.bg-section-alt { background: rgba(22,3,40,.5); }
.divider { height: 1px; background: var(--border); margin: 0; }
.lazy { opacity: 0; transition: opacity .5s; }
.lazy.loaded { opacity: 1; }
.tag-pill {
  display: inline-block;
  background: rgba(139,92,246,.12);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: .75rem;
  padding: 3px 10px;
  border-radius: 12px;
}
.highlight-box {
  background: linear-gradient(135deg, rgba(139,92,246,.1), rgba(6,182,212,.1));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.counter-num {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}