/* =====================================================
   糖心vlog - 完美世界风格 全原创CSS
   配色：深墨绿 #0a1628 | 星空紫 #1e0a3c | 玫瑰金 #c9956a | 仙光金 #f0c060
   ===================================================== */

/* ===== 全局重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink-dark: #0a1628;
  --void-purple: #1e0a3c;
  --deep-jade: #0d2b1e;
  --rose-gold: #c9956a;
  --immortal-gold: #f0c060;
  --pearl-white: #f5f0e8;
  --mist-gray: #8a9bb0;
  --accent-cyan: #4dd9e0;
  --card-bg: rgba(30, 10, 60, 0.85);
  --glass-bg: rgba(255,255,255,0.06);
  --border-glow: rgba(201,149,106,0.35);
  --shadow-deep: 0 8px 40px rgba(0,0,0,0.6);
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-main: 'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-main);
  background: var(--ink-dark);
  color: var(--pearl-white);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== SEO干扰标签隐藏 ===== */
.seo-noise, .seo-noise * {
  display: none !important;
  visibility: hidden !important;
  position: absolute !important;
  width: 0 !important;
  height: 0 !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--ink-dark); }
::-webkit-scrollbar-thumb { background: var(--rose-gold); border-radius: 3px; }

/* ===== 通用容器 ===== */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section-wrap { padding: 80px 0; }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--immortal-gold);
  text-align: center;
  margin-bottom: 12px;
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--rose-gold), var(--immortal-gold));
  margin: 12px auto 0;
  border-radius: 2px;
}
.section-sub {
  text-align: center;
  color: var(--mist-gray);
  font-size: 1rem;
  margin-bottom: 48px;
}

/* ===== 公告栏 ===== */
.notice-bar {
  background: linear-gradient(90deg, var(--void-purple), #2d0a5c, var(--void-purple));
  padding: 8px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--immortal-gold);
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-glow);
  overflow: hidden;
  white-space: nowrap;
}
.notice-bar span { display: inline-block; animation: marquee 30s linear infinite; }
@keyframes marquee { 0%{transform:translateX(100vw)} 100%{transform:translateX(-100%)} }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10,22,40,0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glow);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--rose-gold);
  object-fit: cover;
  box-shadow: 0 0 12px rgba(201,149,106,0.4);
}
.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--immortal-gold), var(--rose-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}
.logo-sub { font-size: 0.7rem; color: var(--mist-gray); margin-top: -4px; }

/* ===== 主导航 ===== */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  color: var(--pearl-white);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  background: var(--glass-bg);
  color: var(--immortal-gold);
}
.main-nav a .nav-icon { font-size: 0.85rem; }

/* ===== 搜索框 ===== */
.search-wrap {
  display: flex;
  align-items: center;
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  border-radius: 24px;
  padding: 6px 16px;
  gap: 8px;
  min-width: 200px;
  transition: var(--transition);
}
.search-wrap:focus-within {
  border-color: var(--rose-gold);
  box-shadow: 0 0 12px rgba(201,149,106,0.2);
}
.search-wrap input {
  background: none;
  border: none;
  outline: none;
  color: var(--pearl-white);
  font-size: 0.88rem;
  width: 100%;
}
.search-wrap input::placeholder { color: var(--mist-gray); }
.search-btn {
  background: none;
  border: none;
  color: var(--rose-gold);
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  transition: var(--transition);
}
.search-btn:hover { color: var(--immortal-gold); }

/* ===== 汉堡菜单 ===== */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--pearl-white); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ===== 搜索栏（导航下方独立行） ===== */
.search-bar-row {
  background: rgba(30,10,60,0.7);
  border-bottom: 1px solid var(--border-glow);
  padding: 10px 0;
}
.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px;
}
.search-bar-inner input {
  flex: 1;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border-glow);
  border-radius: 24px;
  padding: 9px 20px;
  color: var(--pearl-white);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}
.search-bar-inner input:focus { border-color: var(--rose-gold); }
.search-bar-inner button {
  background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold));
  border: none;
  border-radius: 24px;
  padding: 9px 24px;
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}
.search-bar-inner button:hover { opacity: 0.85; transform: translateY(-1px); }

/* ===== HERO BANNER ===== */
.hero-banner {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  transform: scale(1.04);
  animation: slowZoom 20s ease-in-out infinite alternate;
}
@keyframes slowZoom { 0%{transform:scale(1.04)} 100%{transform:scale(1.12)} }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,0.8) 0%, rgba(30,10,60,0.6) 50%, rgba(13,43,30,0.5) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
  padding: 0 24px;
  margin: 0 auto;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201,149,106,0.15);
  border: 1px solid var(--rose-gold);
  border-radius: 24px;
  padding: 6px 18px;
  font-size: 0.82rem;
  color: var(--rose-gold);
  margin-bottom: 24px;
  letter-spacing: 1px;
}
.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #fff 0%, var(--immortal-gold) 50%, var(--rose-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  color: rgba(245,240,232,0.82);
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold));
  color: #fff;
  padding: 14px 32px;
  border-radius: 32px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(201,149,106,0.4);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(201,149,106,0.6); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--pearl-white);
  padding: 14px 32px;
  border-radius: 32px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border: 1.5px solid rgba(245,240,232,0.4);
  transition: var(--transition);
}
.btn-outline:hover { border-color: var(--immortal-gold); color: var(--immortal-gold); transform: translateY(-3px); }

/* ===== 英雄统计数据 ===== */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
  position: relative;
}
.hero-stat::after {
  content: '';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 36px;
  background: var(--border-glow);
}
.hero-stat:last-child::after { display: none; }
.hero-stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--immortal-gold);
  line-height: 1;
}
.hero-stat-label { font-size: 0.78rem; color: var(--mist-gray); margin-top: 4px; }

/* ===== 视频滚动标签 ===== */
.video-ticker {
  background: linear-gradient(90deg, var(--void-purple), var(--deep-jade));
  padding: 14px 0;
  overflow: hidden;
  border-top: 1px solid var(--border-glow);
  border-bottom: 1px solid var(--border-glow);
}
.ticker-track {
  display: flex;
  gap: 48px;
  animation: tickerRoll 25s linear infinite;
  white-space: nowrap;
}
@keyframes tickerRoll { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }
.ticker-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--pearl-white);
  flex-shrink: 0;
}
.ticker-item .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--rose-gold); }

/* ===== 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(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-glow);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(201,149,106,0.25);
  border-color: var(--rose-gold);
}
.video-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: #111;
}
.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(1.08); }
.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.35);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .play-overlay { opacity: 1; }
.play-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(201,149,106,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  transform: scale(0.8);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.video-card:hover .play-btn { transform: scale(1); }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--rose-gold);
  color: #fff;
  font-size: 0.72rem;
  padding: 3px 9px;
  border-radius: 4px;
  font-weight: 600;
}
.video-info { padding: 16px; }
.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--pearl-white);
  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: 0.78rem;
  color: var(--mist-gray);
}
.video-stats { display: flex; gap: 12px; font-size: 0.78rem; color: var(--mist-gray); margin-top: 8px; }
.video-stats span { display: flex; align-items: center; gap: 4px; }

/* ===== 精选视频区 ===== */
.featured-video-section { background: linear-gradient(180deg, var(--ink-dark) 0%, var(--void-purple) 100%); }

/* ===== 影视传媒模块 ===== */
.media-section { background: var(--deep-jade); }
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.media-card {
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.media-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--rose-gold), var(--immortal-gold));
  transform: scaleX(0);
  transition: var(--transition);
}
.media-card:hover::before { transform: scaleX(1); }
.media-card:hover { transform: translateY(-4px); background: rgba(255,255,255,0.1); }
.media-icon { font-size: 2.4rem; margin-bottom: 14px; }
.media-card h3 { font-size: 1rem; font-weight: 700; color: var(--immortal-gold); margin-bottom: 8px; }
.media-card p { font-size: 0.82rem; color: var(--mist-gray); line-height: 1.6; }

/* ===== 娱乐专区 ===== */
.entertainment-section { background: linear-gradient(135deg, var(--ink-dark), var(--void-purple)); }
.ent-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (min-width: 768px) { .ent-grid { grid-template-columns: repeat(4, 1fr); } }
.ent-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
  border: 1px solid var(--border-glow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.ent-card:hover { transform: translateY(-6px); border-color: var(--rose-gold); }
.ent-card-icon { font-size: 3rem; margin-bottom: 16px; }
.ent-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--pearl-white); margin-bottom: 8px; }
.ent-card p { font-size: 0.82rem; color: var(--mist-gray); }
.ent-card .count-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold));
  color: #fff;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 12px;
  margin-top: 10px;
  font-weight: 600;
}

/* ===== AI赋能 ===== */
.ai-section { background: var(--deep-jade); position: relative; overflow: hidden; }
.ai-section::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(77,217,224,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.ai-card {
  background: linear-gradient(135deg, rgba(30,10,60,0.9), rgba(13,43,30,0.9));
  border: 1px solid rgba(77,217,224,0.2);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.ai-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--immortal-gold));
  transform: scaleX(0);
  transition: var(--transition);
}
.ai-card:hover::after { transform: scaleX(1); }
.ai-card:hover { transform: translateY(-4px); border-color: var(--accent-cyan); }
.ai-icon { font-size: 2.8rem; margin-bottom: 16px; }
.ai-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--accent-cyan); margin-bottom: 10px; }
.ai-card p { font-size: 0.88rem; color: var(--mist-gray); line-height: 1.7; }
.ai-tag { display: inline-block; background: rgba(77,217,224,0.15); color: var(--accent-cyan); font-size: 0.72rem; padding: 3px 10px; border-radius: 12px; margin-top: 12px; border: 1px solid rgba(77,217,224,0.3); }

/* ===== 社区功能 ===== */
.community-section {
  background: url('../images/community_bg.jpg') center/cover no-repeat;
  position: relative;
}
.community-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10,22,40,0.85);
}
.community-section .container { position: relative; z-index: 1; }
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.community-card {
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.community-card:hover { transform: translateY(-4px); background: rgba(255,255,255,0.1); }
.community-card .c-icon { font-size: 2.4rem; margin-bottom: 12px; }
.community-card h3 { font-size: 0.95rem; font-weight: 700; color: var(--immortal-gold); margin-bottom: 6px; }
.community-card p { font-size: 0.8rem; color: var(--mist-gray); }

/* ===== 专家团队 ===== */
.experts-section { background: var(--ink-dark); }
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}
.expert-card {
  background: var(--card-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-deep); border-color: var(--rose-gold); }
.expert-photo {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}
.expert-body { padding: 20px; }
.expert-name { font-size: 1.1rem; font-weight: 700; color: var(--pearl-white); margin-bottom: 4px; }
.expert-role { font-size: 0.82rem; color: var(--rose-gold); margin-bottom: 10px; font-weight: 600; }
.expert-desc { font-size: 0.82rem; color: var(--mist-gray); line-height: 1.6; margin-bottom: 14px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.award-tag { background: rgba(240,192,96,0.1); color: var(--immortal-gold); font-size: 0.72rem; padding: 3px 9px; border-radius: 12px; border: 1px solid rgba(240,192,96,0.3); }
.expert-links { display: flex; gap: 10px; }
.expert-links a {
  flex: 1;
  text-align: center;
  padding: 8px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  text-decoration: none;
  transition: var(--transition);
}
.expert-links .btn-contact { background: var(--rose-gold); color: #fff; }
.expert-links .btn-works { background: var(--glass-bg); color: var(--pearl-white); border: 1px solid var(--border-glow); }
.expert-links a:hover { opacity: 0.8; transform: translateY(-1px); }

/* ===== 合作品牌 ===== */
.partners-section { background: var(--void-purple); }
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}
.partner-logo {
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 16px 28px;
  font-size: 0.9rem;
  color: var(--mist-gray);
  transition: var(--transition);
  font-weight: 600;
}
.partner-logo:hover { color: var(--immortal-gold); border-color: var(--rose-gold); }

/* ===== 用户评价 ===== */
.reviews-section { background: linear-gradient(180deg, var(--deep-jade), var(--ink-dark)); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: var(--card-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 16px; right: 20px;
  font-size: 4rem;
  color: rgba(201,149,106,0.15);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-card:hover { transform: translateY(-4px); border-color: var(--rose-gold); }
.review-stars { color: var(--immortal-gold); font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-text { font-size: 0.9rem; color: var(--pearl-white); line-height: 1.7; margin-bottom: 16px; }
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
}
.reviewer-name { font-size: 0.88rem; font-weight: 600; color: var(--pearl-white); }
.reviewer-meta { font-size: 0.75rem; color: var(--mist-gray); }

/* ===== FAQ ===== */
.faq-section { background: var(--void-purple); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--rose-gold); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--pearl-white);
  user-select: none;
}
.faq-q:hover { color: var(--immortal-gold); }
.faq-arrow { font-size: 1.2rem; transition: var(--transition); color: var(--rose-gold); }
.faq-item.open .faq-arrow { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 0.88rem;
  color: var(--mist-gray);
  line-height: 1.8;
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 24px 18px; }

/* ===== 联系我们 ===== */
.contact-section { background: var(--ink-dark); }
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 768px) { .contact-layout { grid-template-columns: 1fr; } }
.contact-info-block h3 { font-size: 1.3rem; font-weight: 700; color: var(--immortal-gold); margin-bottom: 24px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}
.contact-icon {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item-text { font-size: 0.88rem; color: var(--mist-gray); }
.contact-item-text strong { display: block; color: var(--pearl-white); font-size: 0.95rem; margin-bottom: 2px; }
.qr-row { display: flex; gap: 24px; margin-top: 24px; }
.qr-block { text-align: center; }
.qr-block img { width: 100px; height: 100px; border-radius: var(--radius-sm); border: 2px solid var(--border-glow); }
.qr-block p { font-size: 0.75rem; color: var(--mist-gray); margin-top: 6px; }
.contact-form-block { background: var(--card-bg); border: 1px solid var(--border-glow); border-radius: var(--radius-lg); padding: 32px; }
.contact-form-block h3 { font-size: 1.2rem; font-weight: 700; color: var(--immortal-gold); margin-bottom: 20px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--mist-gray); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--pearl-white);
  font-size: 0.88rem;
  outline: none;
  transition: var(--transition);
  font-family: var(--font-main);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--rose-gold); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold));
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.form-submit:hover { opacity: 0.85; transform: translateY(-2px); }

/* ===== 社交分享 ===== */
.share-section { background: var(--deep-jade); padding: 40px 0; }
.share-inner { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.share-label { font-size: 0.9rem; color: var(--mist-gray); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 24px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: 1px solid var(--border-glow);
  color: var(--pearl-white);
  background: var(--glass-bg);
}
.share-btn:hover { transform: translateY(-2px); border-color: var(--rose-gold); color: var(--immortal-gold); }

/* ===== 页脚 ===== */
.site-footer {
  background: linear-gradient(180deg, #060e1a, #030810);
  border-top: 1px solid var(--border-glow);
  padding: 60px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand .logo-wrap { margin-bottom: 16px; }
.footer-brand p { font-size: 0.85rem; color: var(--mist-gray); line-height: 1.7; }
.footer-col h4 { font-size: 0.95rem; font-weight: 700; color: var(--immortal-gold); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 0.85rem; color: var(--mist-gray); text-decoration: none; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--rose-gold); }
.footer-bottom {
  border-top: 1px solid var(--border-glow);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--mist-gray);
}
.footer-logo-bottom { display: flex; align-items: center; gap: 10px; }
.footer-logo-bottom img { width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--border-glow); }

/* ===== 视频播放模态框 ===== */
.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.active { display: flex; }
.modal-inner {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glow);
  overflow: hidden;
  max-width: 800px;
  width: 100%;
  position: relative;
}
.modal-close {
  position: absolute;
  top: 12px; right: 16px;
  font-size: 1.5rem;
  color: var(--pearl-white);
  cursor: pointer;
  z-index: 10;
  background: rgba(0,0,0,0.5);
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.modal-close:hover { background: var(--rose-gold); }
.modal-video-wrap { position: relative; padding-top: 56.25%; background: #000; }
.modal-video-wrap video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.modal-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--void-purple), var(--deep-jade));
  color: var(--pearl-white);
  gap: 16px;
}
.modal-placeholder .big-play { font-size: 4rem; color: var(--rose-gold); }
.modal-placeholder p { font-size: 0.9rem; color: var(--mist-gray); }
.modal-info { padding: 20px; }
.modal-info h3 { font-size: 1.1rem; font-weight: 700; color: var(--pearl-white); margin-bottom: 8px; }
.modal-info p { font-size: 0.85rem; color: var(--mist-gray); }

/* ===== 面包屑 ===== */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.82rem;
  color: var(--mist-gray);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--mist-gray); text-decoration: none; transition: var(--transition); }
.breadcrumb a:hover { color: var(--rose-gold); }
.breadcrumb .sep { color: var(--border-glow); }
.breadcrumb .current { color: var(--immortal-gold); }

/* ===== 页面英雄区（内页） ===== */
.page-hero {
  background: linear-gradient(135deg, var(--void-purple), var(--deep-jade));
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border-glow);
}
.page-hero h1 { font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 800; color: var(--immortal-gold); margin-bottom: 10px; }
.page-hero p { font-size: 1rem; color: var(--mist-gray); }

/* ===== 时间线 ===== */
.timeline { position: relative; max-width: 700px; margin: 0 auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--rose-gold), var(--immortal-gold));
  transform: translateX(-50%);
}
.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding-right: calc(50% + 24px);
  margin-bottom: 32px;
  position: relative;
}
.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: calc(50% + 24px);
}
.timeline-dot {
  position: absolute;
  left: 50%;
  top: 16px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--rose-gold);
  border: 3px solid var(--ink-dark);
  transform: translateX(-50%);
  box-shadow: 0 0 10px rgba(201,149,106,0.5);
}
.timeline-content {
  background: var(--card-bg);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  max-width: 280px;
}
.timeline-year { font-size: 0.78rem; color: var(--rose-gold); font-weight: 700; margin-bottom: 4px; }
.timeline-content h4 { font-size: 0.95rem; font-weight: 700; color: var(--pearl-white); margin-bottom: 4px; }
.timeline-content p { font-size: 0.8rem; color: var(--mist-gray); }

/* ===== 标签云 ===== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item {
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.82rem;
  color: var(--mist-gray);
  transition: var(--transition);
  cursor: pointer;
}
.tag-item:hover { color: var(--immortal-gold); border-color: var(--rose-gold); }

/* ===== 分页 ===== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
.page-btn {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--border-glow);
  color: var(--pearl-white);
  font-size: 0.88rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  text-decoration: none;
}
.page-btn:hover, .page-btn.active { background: var(--rose-gold); border-color: var(--rose-gold); color: #fff; }

/* ===== 加载更多 ===== */
.load-more-wrap { text-align: center; margin-top: 40px; }
.btn-load-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass-bg);
  border: 1.5px solid var(--border-glow);
  border-radius: 32px;
  padding: 12px 32px;
  color: var(--pearl-white);
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
}
.btn-load-more:hover { border-color: var(--rose-gold); color: var(--immortal-gold); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .search-wrap { display: none; }
  .main-nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: rgba(10,22,40,0.98);
    padding: 16px;
    border-bottom: 1px solid var(--border-glow);
    z-index: 999;
    gap: 4px;
  }
}
@media (max-width: 768px) {
  .hero-stats { gap: 20px; }
  .hero-stat::after { display: none; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .ent-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { left: 20px; }
  .timeline-item, .timeline-item:nth-child(even) { padding: 0 0 0 52px; justify-content: flex-start; }
  .timeline-dot { left: 20px; }
  .timeline-content { max-width: 100%; }
}
@media (max-width: 480px) {
  .hero-btns { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .ent-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 动画工具类 ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ===== 回到顶部 ===== */
.back-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(201,149,106,0.4);
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
  z-index: 500;
  text-decoration: none;
}
.back-top.show { opacity: 1; pointer-events: auto; }
.back-top:hover { transform: translateY(-4px); }

/* ===== AI功能卡片 ===== */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 28px; margin-top: 40px; }
.feature-card { background: var(--card-bg); border: 1px solid var(--border-glow); border-radius: var(--radius-lg); padding: 32px 28px; transition: transform 0.3s, box-shadow 0.3s; position: relative; overflow: hidden; }
.feature-card:hover { transform: translateY(-6px); box-shadow: 0 20px 50px rgba(0,0,0,0.5); border-color: var(--rose-gold); }
.feature-icon { font-size: 48px; margin-bottom: 20px; display: block; }
.feature-card h3 { font-size: 1.2rem; color: var(--immortal-gold); margin-bottom: 14px; font-weight: 700; }
.feature-card p { color: var(--mist-gray); font-size: 0.95rem; line-height: 1.7; margin-bottom: 20px; }
.btn-feature { display: inline-block; color: var(--rose-gold); font-size: 0.9rem; font-weight: 600; text-decoration: none; }
.btn-feature:hover { color: var(--immortal-gold); }

/* ===== 关于我们布局 ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 2rem; color: var(--immortal-gold); margin-bottom: 20px; font-weight: 800; }
.about-text p { color: var(--mist-gray); line-height: 1.8; margin-bottom: 16px; }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 32px; }
.about-stat { background: var(--card-bg); border: 1px solid var(--border-glow); border-radius: var(--radius-md); padding: 20px; text-align: center; }
.stat-num { display: block; font-size: 1.8rem; font-weight: 800; color: var(--immortal-gold); margin-bottom: 6px; }
.stat-label { font-size: 0.85rem; color: var(--mist-gray); }

/* ===== 联系页面布局 ===== */
.contact-layout { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.contact-info h2, .contact-form-wrap h2 { font-size: 1.6rem; color: var(--immortal-gold); margin-bottom: 28px; font-weight: 800; }
.btn-submit { width: 100%; padding: 16px; background: linear-gradient(135deg, var(--rose-gold), var(--immortal-gold)); color: #fff; border: none; border-radius: var(--radius-md); font-size: 1rem; font-weight: 700; cursor: pointer; }
.btn-submit:hover { opacity: 0.9; }

/* ===== 专家详情页 ===== */
.expert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; }
.expert-img { width: 100%; height: 220px; overflow: hidden; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.expert-img img { width: 100%; height: 100%; object-fit: cover; }
.expert-info { padding: 20px; }
.expert-info h3 { font-size: 1.1rem; font-weight: 700; color: var(--pearl-white); margin-bottom: 4px; }
.expert-title { font-size: 0.82rem; color: var(--rose-gold); display: block; margin-bottom: 10px; font-weight: 600; }
.expert-info p { font-size: 0.82rem; color: var(--mist-gray); line-height: 1.6; margin-bottom: 14px; }
.expert-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-item { background: rgba(201,149,106,0.1); color: var(--rose-gold); font-size: 0.72rem; padding: 3px 9px; border-radius: 12px; border: 1px solid rgba(201,149,106,0.3); }