/* ================================================================
   母狗园 - 全局样式表 v2.0（优化版）
   sulesj.com.cn
   原创主题 · 深紫金配色 · 影视传媒风格
   ================================================================ */

/* ---- CSS 变量 ---- */
:root {
  --brand-purple:   #4A0E8F;
  --brand-purple-l: #6B21C8;
  --brand-purple-d: #2D0660;
  --brand-gold:     #D4AF37;
  --brand-gold-l:   #F0D060;
  --brand-red:      #E74C3C;
  --brand-green:    #27AE60;
  --bg-dark:        #0D0D1A;
  --bg-card:        #13132A;
  --bg-card2:       #1A1A35;
  --bg-card3:       #0F0F22;
  --border-color:   rgba(212,175,55,.18);
  --border-glow:    rgba(212,175,55,.45);
  --text-primary:   #FFFFFF;
  --text-secondary: #D0D0E8;
  --text-muted:     #A0A0C0;
  --radius:         12px;
  --radius-sm:      8px;
  --radius-lg:      20px;
  --shadow:         0 4px 24px rgba(0,0,0,.5);
  --shadow-lg:      0 16px 48px rgba(0,0,0,.6);
  --shadow-glow:    0 0 32px rgba(74,14,143,.4);
  --transition:     .28s cubic-bezier(.4,0,.2,1);
  --transition-slow:.5s cubic-bezier(.4,0,.2,1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans CJK SC",sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--brand-gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-gold-l); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

/* 自定义滚动条 */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--brand-purple); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand-purple-l); }

/* 选中文字 */
::selection { background: rgba(212,175,55,.3); color: #fff; }

/* ---- 顶部公告 ---- */
.top-notice {
  background: linear-gradient(90deg, var(--brand-purple-d), var(--brand-purple), var(--brand-purple-d));
  color: #fff;
  text-align: center;
  padding: 8px 16px;
  font-size: .78rem;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}
.top-notice::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,.08), transparent);
  animation: noticeShine 6s infinite;
}
@keyframes noticeShine {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(50%); }
}
.top-notice a { color: var(--brand-gold); font-weight: 600; position: relative; }
.top-notice a:hover { text-decoration: underline; }

/* ---- 导航 ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(13,13,26,.92);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: rgba(13,13,26,.98);
  box-shadow: 0 4px 32px rgba(0,0,0,.5);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  transition: transform var(--transition);
}
.nav-logo:hover .logo-icon { transform: rotate(-8deg) scale(1.08); }
.logo-full { height: 32px; width: auto; object-fit: contain; }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-menu a {
  color: var(--text-muted);
  font-size: .88rem;
  padding: 6px 14px;
  border-radius: 8px;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--brand-gold);
  border-radius: 1px;
  transition: all var(--transition);
  transform: translateX(-50%);
}
.nav-menu a:hover::after,
.nav-menu a.active::after { width: 60%; }
.nav-menu a:hover,
.nav-menu a.active {
  color: var(--brand-gold);
  background: rgba(212,175,55,.08);
}
.nav-search {
  display: flex;
  align-items: center;
  background: var(--bg-card2);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  overflow: hidden;
  flex-shrink: 0;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav-search:focus-within {
  border-color: var(--border-glow);
  box-shadow: 0 0 16px rgba(212,175,55,.15);
}
.nav-search input {
  background: none;
  border: none;
  outline: none;
  color: #fff;
  font-size: .82rem;
  padding: 7px 14px;
  width: 170px;
}
.nav-search input::placeholder { color: var(--text-muted); }
.nav-search button {
  padding: 7px 14px;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-search button:hover { color: var(--brand-gold); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/hero-banner.jpg') center/cover no-repeat;
  transform: scale(1.05);
  transition: transform 12s ease;
}
.hero:hover .hero-bg { transform: scale(1.0); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,13,26,.94) 0%, rgba(74,14,143,.55) 50%, rgba(13,13,26,.85) 100%);
}
/* 装饰粒子 */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(212,175,55,.3), transparent),
    radial-gradient(2px 2px at 80% 20%, rgba(107,33,200,.3), transparent),
    radial-gradient(1px 1px at 40% 70%, rgba(212,175,55,.2), transparent),
    radial-gradient(1px 1px at 60% 50%, rgba(107,33,200,.2), transparent),
    radial-gradient(2px 2px at 90% 80%, rgba(212,175,55,.25), transparent),
    radial-gradient(1px 1px at 10% 60%, rgba(107,33,200,.15), transparent);
  animation: twinkle 8s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 1;
}
@keyframes twinkle {
  0% { opacity: .4; }
  100% { opacity: 1; }
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 20px;
  width: 100%;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(212,175,55,.12);
  border: 1px solid rgba(212,175,55,.3);
  color: var(--brand-gold);
  font-size: .78rem;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  animation: fadeInUp .6s ease;
}
.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -.02em;
  animation: fadeInUp .6s ease .1s both;
}
.hero-content h1 span {
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-l));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content > p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.78);
  max-width: 600px;
  margin-bottom: 32px;
  animation: fadeInUp .6s ease .2s both;
}
.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeInUp .6s ease .3s both;
}
.hero-stats {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  animation: fadeInUp .6s ease .4s both;
}
.hero-stat .num {
  font-size: 1.7rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-l));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-stat .label {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: 2px;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 24px;
  font-size: .88rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
  transition: left .5s ease;
}
.btn:hover::before { left: 100%; }
.btn-primary {
  background: linear-gradient(135deg, var(--brand-purple), var(--brand-purple-l));
  color: #fff;
  border: 1px solid rgba(212,175,55,.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--brand-purple-l), #8B31E8);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(74,14,143,.5);
}
.btn-gold {
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-l));
  color: #1a0a2e;
  font-weight: 700;
}
.btn-gold:hover {
  background: linear-gradient(135deg, var(--brand-gold-l), #FFE080);
  color: #1a0a2e;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212,175,55,.5);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
}
.btn-outline:hover {
  border-color: var(--brand-gold);
  color: var(--brand-gold);
  background: rgba(212,175,55,.06);
  transform: translateY(-2px);
}
.btn-sm { padding: 6px 14px; font-size: .8rem; }
.pulse-gold { animation: pulseGold 2.5s infinite; }
@keyframes pulseGold {
  0%,100% { box-shadow: 0 0 0 0 rgba(212,175,55,.5); }
  50%      { box-shadow: 0 0 0 12px rgba(212,175,55,0); }
}

/* ---- 统计条 ---- */
.stats-bar {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 16px;
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}
.stat-item { text-align: center; min-width: 80px; }
.stat-item .num {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-l));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item .label {
  font-size: .72rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ---- Section ---- */
.section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 72px 20px;
}
.section-full {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 72px 20px;
  position: relative;
}
.section-inner {
  max-width: 1280px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 44px;
}
.section-tag {
  display: inline-block;
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-gold);
  background: rgba(212,175,55,.08);
  border: 1px solid rgba(212,175,55,.22);
  padding: 4px 14px;
  border-radius: 14px;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.section-title span {
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-l));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: .9rem;
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}
.text-gold {
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-l));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 渐变分割线 */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), var(--brand-gold), var(--border-color), transparent);
  margin: 0;
  border: none;
}

/* ---- 视频网格 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.video-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.video-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(74,14,143,.35), 0 0 24px rgba(212,175,55,.1);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-card2);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease, filter .5s ease;
}
.video-card:hover .video-thumb img {
  transform: scale(1.08);
  filter: brightness(0.7);
}
/* 播放按钮 */
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  pointer-events: none;
}
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(74,14,143,.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--brand-gold);
  opacity: 0;
  transform: scale(.6);
  transition: all .35s cubic-bezier(.4,0,.2,1);
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
}
.video-card:hover .play-icon {
  opacity: 1;
  transform: scale(1);
}
.play-icon svg {
  width: 22px;
  height: 22px;
  fill: #fff;
  margin-left: 3px;
}
/* 视频进度条装饰 */
.video-thumb::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-gold), var(--brand-purple-l));
  transition: width .6s ease;
  z-index: 2;
}
.video-card:hover .video-thumb::after { width: 100%; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,.8);
  color: #fff;
  font-size: .72rem;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 500;
  z-index: 3;
  backdrop-filter: blur(4px);
}
.video-tag-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--brand-purple);
  color: #fff;
  font-size: .68rem;
  padding: 3px 9px;
  border-radius: 4px;
  font-weight: 600;
  z-index: 3;
  letter-spacing: .02em;
}
.video-info { padding: 14px; }
.video-info h3 {
  font-size: .88rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}
.video-card:hover .video-info h3 { color: var(--brand-gold); }
.video-meta {
  display: flex;
  gap: 10px;
  font-size: .75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.video-meta .views::before { content: "▶ "; }
.video-meta .likes::before { content: "♥ "; }
.video-meta .comments::before { content: "💬 "; }

/* ---- Tab ---- */
.community-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  justify-content: center;
}
.tab-btn {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: .82rem;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  transition: all var(--transition);
}
.tab-btn:hover { color: var(--brand-gold); border-color: rgba(212,175,55,.4); background: rgba(212,175,55,.05); }
.tab-btn.active {
  background: linear-gradient(135deg, var(--brand-purple), var(--brand-purple-l));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(74,14,143,.4);
}

/* ---- 功能卡片 ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
/* 顶部装饰线 */
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-purple), var(--brand-gold), var(--brand-purple-l));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(74,14,143,.3);
}
.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
  display: inline-block;
}
.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: .83rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ---- 专家卡片 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.expert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.expert-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(74,14,143,.35);
}
.expert-avatar {
  position: relative;
  aspect-ratio: 3/2;
  overflow: hidden;
}
.expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.expert-card:hover .expert-avatar img { transform: scale(1.06); }
.expert-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-l));
  color: #1a0a2e;
  font-size: .7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
}
.expert-body { padding: 18px; }
.expert-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}
.expert-title {
  font-size: .78rem;
  color: var(--brand-gold);
  margin-bottom: 10px;
}
.expert-desc {
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 12px;
}
.expert-awards {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}
.award-tag {
  font-size: .68rem;
  background: rgba(74,14,143,.35);
  border: 1px solid rgba(107,33,200,.45);
  color: #c4b5fd;
  padding: 2px 8px;
  border-radius: 4px;
}
.expert-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---- 合作伙伴 ---- */
.partner-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.partner-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 20px;
  font-size: .85rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.partner-item:hover {
  border-color: var(--border-glow);
  color: var(--brand-gold);
  background: rgba(212,175,55,.06);
  transform: translateY(-2px);
}

/* ---- 步骤 ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}
.step-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(74,14,143,.3);
}
.step-num {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--brand-purple), var(--brand-purple-l));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 auto 14px;
  border: 2px solid var(--brand-gold);
  box-shadow: 0 4px 16px rgba(74,14,143,.4);
}
.step-card h4 { font-size: .92rem; color: #fff; margin-bottom: 8px; }
.step-card p { font-size: .8rem; color: var(--text-muted); line-height: 1.65; }

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item:hover { border-color: rgba(212,175,55,.3); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
  text-align: left;
  transition: all var(--transition);
  gap: 12px;
}
.faq-question:hover { background: rgba(212,175,55,.05); }
.faq-question.open { color: var(--brand-gold); background: rgba(212,175,55,.05); }
.faq-chevron {
  font-size: .7rem;
  color: var(--text-muted);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
}
.faq-question.open .faq-chevron { transform: rotate(180deg); color: var(--brand-gold); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-answer.open { max-height: 500px; }
.faq-answer > div {
  padding: 0 20px 18px;
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.85;
}

/* ---- 评论 ---- */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--bg-card2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 22px;
  transition: all var(--transition);
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 3rem;
  color: rgba(212,175,55,.1);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-card:hover {
  border-color: rgba(212,175,55,.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0,0,0,.3);
}
.review-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.reviewer-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-purple), var(--brand-purple-l));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 700;
  flex-shrink: 0;
  border: 2px solid rgba(212,175,55,.3);
}
.reviewer-info .name { font-size: .88rem; font-weight: 600; color: #fff; }
.reviewer-info .date { font-size: .72rem; color: var(--text-muted); }
.stars { color: var(--brand-gold); font-size: .88rem; margin-left: auto; }
.review-text { font-size: .83rem; color: var(--text-muted); line-height: 1.75; }

/* ---- 联系 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.contact-info-block {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 28px;
}
.contact-info-block h3 {
  font-size: 1.1rem;
  color: var(--brand-gold);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}
.contact-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.contact-item:hover { background: rgba(212,175,55,.04); }
.contact-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.contact-item .label { font-size: .72rem; color: var(--text-muted); margin-bottom: 2px; }
.contact-item .value { font-size: .88rem; color: #fff; }

/* ---- 二维码 ---- */
.qr-row { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  object-fit: cover;
  transition: border-color var(--transition);
}
.qr-item:hover img { border-color: var(--border-glow); }
.qr-label { font-size: .72rem; color: var(--text-muted); margin-top: 6px; }

/* ---- 明星网格 ---- */
.star-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.star-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
}
.star-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-5px);
  box-shadow: 0 12px 36px rgba(74,14,143,.4);
}
.star-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  transition: transform .5s ease;
}
.star-card:hover img { transform: scale(1.06); }
.star-card-info {
  padding: 12px;
  text-align: center;
}
.star-card-info h3 { font-size: .92rem; color: #fff; margin-bottom: 2px; }
.star-card-info p { font-size: .72rem; color: var(--brand-gold); }

/* ---- 时间线 ---- */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--brand-purple), var(--brand-gold), var(--brand-purple-l));
  transform: translateX(-50%);
}
.timeline-item {
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
  align-items: flex-start;
}
.timeline-item.left { flex-direction: row-reverse; }
.timeline-year {
  background: linear-gradient(135deg, var(--brand-purple), var(--brand-purple-l));
  color: var(--brand-gold);
  font-weight: 700;
  font-size: .88rem;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--brand-gold);
  flex-shrink: 0;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(74,14,143,.4);
}
.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 18px;
  flex: 1;
  transition: all var(--transition);
}
.timeline-content:hover {
  border-color: rgba(212,175,55,.3);
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
}
.timeline-content h3 { font-size: .92rem; color: var(--brand-gold); margin-bottom: 6px; }
.timeline-content p { font-size: .82rem; color: var(--text-muted); line-height: 1.65; }

/* ---- 分享 ---- */
.share-bar { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: .8rem;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  background: var(--bg-card);
  transition: all var(--transition);
}
.share-btn:hover {
  border-color: var(--brand-gold);
  color: var(--brand-gold);
  background: rgba(212,175,55,.06);
  transform: translateY(-2px);
}

/* ---- 徽章 ---- */
.badge {
  display: inline-block;
  font-size: .65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}
.badge-ai {
  background: linear-gradient(135deg, #6B21C8, #9333ea);
  color: #fff;
}
.badge-hot {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: #fff;
}
.badge-new {
  background: linear-gradient(135deg, #27ae60, #2ecc71);
  color: #fff;
}

/* ---- 面包屑 ---- */
.breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 20px;
  font-size: .8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--brand-gold); }
.breadcrumb .sep { color: rgba(212,175,55,.3); }
.breadcrumb .current { color: var(--brand-gold); }

/* ---- 页面Banner ---- */
.page-banner {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.page-banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(.35);
  transition: transform 8s ease;
}
.page-banner:hover .page-banner-bg { transform: scale(1.03); }
.page-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg-dark) 0%, transparent 50%);
  pointer-events: none;
}
.page-banner-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}
.page-banner-content h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}
.page-banner-content p { font-size: .9rem; color: rgba(255,255,255,.7); }

/* ---- 加载更多 ---- */
.load-more-wrap { text-align: center; padding: 20px 0; }

/* ---- 视频弹窗 ---- */
.video-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.88);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(8px);
}
.video-modal-overlay.open { display: flex; }
.video-modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  width: 100%;
  max-width: 800px;
  position: relative;
  padding: 16px;
  box-shadow: var(--shadow-lg);
  animation: modalIn .3s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.video-modal-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 34px;
  height: 34px;
  background: var(--brand-purple);
  border-radius: 50%;
  color: #fff;
  font-size: .88rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--brand-gold);
  z-index: 1;
  transition: all var(--transition);
}
.video-modal-close:hover {
  background: var(--brand-purple-l);
  transform: rotate(90deg);
}
.video-placeholder {
  aspect-ratio: 16/9;
  background: #000;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.video-placeholder .play-circle {
  width: 72px;
  height: 72px;
  background: var(--brand-purple);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--brand-gold);
  animation: pulseGold 2.5s infinite;
}

/* ---- 返回顶部 ---- */
.back-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--brand-purple), var(--brand-purple-l));
  border-radius: 50%;
  color: #fff;
  font-size: 1.2rem;
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(74,14,143,.5);
  border: 2px solid var(--brand-gold);
  transition: all var(--transition);
  cursor: pointer;
}
.back-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(74,14,143,.6);
}

/* ---- 排行榜 ---- */
.rank-list { max-width: 600px; margin: 0 auto; }
.rank-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  transition: all var(--transition);
  cursor: pointer;
}
.rank-item:hover {
  border-color: rgba(212,175,55,.3);
  background: rgba(212,175,55,.04);
}
.rank-num {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .82rem;
  flex-shrink: 0;
  background: var(--bg-card2);
  color: var(--text-muted);
}
.rank-item:nth-child(1) .rank-num { background: linear-gradient(135deg, #D4AF37, #F0D060); color: #1a0a2e; }
.rank-item:nth-child(2) .rank-num { background: linear-gradient(135deg, #C0C0C0, #E0E0E0); color: #1a0a2e; }
.rank-item:nth-child(3) .rank-num { background: linear-gradient(135deg, #CD7F32, #E8A850); color: #1a0a2e; }
.rank-info { flex: 1; min-width: 0; }
.rank-info h4 {
  font-size: .85rem;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.rank-info span { font-size: .72rem; color: var(--text-muted); }
.rank-views {
  font-size: .78rem;
  color: var(--brand-gold);
  font-weight: 600;
  flex-shrink: 0;
}

/* ---- 页脚 ---- */
.site-footer {
  background: linear-gradient(to bottom, #080810, #050508);
  border-top: 1px solid var(--border-color);
  padding: 52px 20px 0;
}
.footer-inner { max-width: 1280px; margin: 0 auto; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}
.footer-col h4 {
  font-size: .9rem;
  color: var(--brand-gold);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--brand-gold);
}
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a {
  font-size: .82rem;
  color: var(--text-muted);
  transition: all var(--transition);
  padding-left: 0;
}
.footer-col ul li a:hover { color: var(--brand-gold); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .78rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--brand-gold); }
.footer-update { color: var(--brand-gold); font-size: .78rem; font-weight: 500; }

/* ---- 友情链接 ---- */
.footer-links {
  border-top: 1px solid var(--border-color);
  padding: 16px 0;
  margin-bottom: 0;
}
.footer-links h5 {
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.footer-links a {
  font-size: .75rem;
  color: var(--text-muted);
  margin-right: 12px;
}
.footer-links a:hover { color: var(--brand-gold); }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(13,13,26,.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    gap: 4px;
    z-index: 800;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 16px; font-size: .92rem; }
  .nav-menu a::after { display: none; }
  .nav-search { display: none; }
  .nav-toggle { display: flex; }
  .hero { min-height: 65vh; }
  .hero-stats { gap: 20px; }
  .hero-stat .num { font-size: 1.3rem; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .expert-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .timeline::before { left: 20px; }
  .timeline-item,
  .timeline-item.left { flex-direction: column; padding-left: 48px; }
  .timeline-year { align-self: flex-start; }
  .page-banner { height: 220px; }
  .ai-layout { grid-template-columns: 1fr !important; }
  .about-layout { grid-template-columns: 1fr !important; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .star-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-btns { flex-direction: column; }
  .hero-btns .btn { justify-content: center; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .community-tabs { justify-content: flex-start; }
}

/* ---- SEO文案区域 ---- */
.seo-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}
.seo-content h2 {
  color: var(--brand-gold);
  font-size: 1.3rem;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}
.seo-content p {
  color: var(--text-muted);
  line-height: 2;
  margin-bottom: 16px;
  font-size: .92rem;
  text-indent: 2em;
}
.seo-content p:last-child { margin-bottom: 0; }

/* ---- 关于页面布局 ---- */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.about-text {
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 16px;
  font-size: .92rem;
}
.about-text strong { color: #fff; }

/* ---- 明星卡片描述与统计 ---- */
.star-desc {
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: 8px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.star-stats {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
  font-size: .75rem;
  color: var(--text-muted);
}

/* ---- 统计栏包裹 ---- */
.stats-bar-wrap {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
}
.stats-bar-wrap .stats-bar {
  max-width: 1280px;
  margin: 0 auto;
  border-radius: 0;
  border: none;
}

/* ---- 明星视频区块 ---- */
.star-videos-section {
  margin-top: 48px;
}

/* ---- 打印 ---- */
@media print {
  .site-header, .top-notice, .back-top, .video-modal-overlay, .nav-toggle { display: none !important; }
  body { background: #fff; color: #000; }
}