/* =============================================
   六合彩官网 - 主样式文件
   域名: wtjlnlo.com
   ============================================= */

/* CSS变量 */
:root {
  --primary: #c8102e;
  --primary-dark: #9b0d22;
  --primary-light: #e8304a;
  --gold: #d4a017;
  --gold-light: #f0c040;
  --gold-dark: #a07810;
  --dark: #1a1a2e;
  --dark2: #16213e;
  --dark3: #0f3460;
  --text: #333344;
  --text-light: #666677;
  --bg: #f8f6f0;
  --bg2: #fff8f0;
  --white: #ffffff;
  --border: #e8ddd0;
  --shadow: 0 4px 20px rgba(200,16,46,0.12);
  --shadow-gold: 0 4px 20px rgba(212,160,23,0.2);
  --radius: 10px;
  --radius-lg: 18px;
  --transition: all 0.3s ease;
}

/* 重置样式 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--gold); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* =============================================
   顶部公告栏
   ============================================= */
.top-notice {
  background: linear-gradient(90deg, var(--dark) 0%, var(--dark3) 100%);
  color: #ffd700;
  font-size: 13px;
  padding: 6px 0;
  overflow: hidden;
}
.top-notice .container { display: flex; align-items: center; gap: 12px; }
.notice-label {
  background: var(--primary);
  color: #fff;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 12px;
  white-space: nowrap;
  font-weight: 600;
}
.notice-scroll { overflow: hidden; flex: 1; }
.notice-text { white-space: nowrap; animation: scrollText 30s linear infinite; display: inline-block; }
@keyframes scrollText { 0% { transform: translateX(100%); } 100% { transform: translateX(-100%); } }

/* =============================================
   头部导航
   ============================================= */
.site-header {
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 20px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.site-logo img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}
.logo-text { display: flex; flex-direction: column; }
.logo-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: 2px;
}
.logo-sub {
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 1px;
}

/* 导航菜单 */
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  background: var(--primary);
  color: var(--white);
}
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  min-width: 160px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 100;
}
.nav-item:hover .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a {
  display: block;
  padding: 8px 18px;
  font-size: 13px;
  color: var(--text);
  transition: var(--transition);
}
.nav-dropdown a:hover { background: var(--bg); color: var(--primary); padding-left: 24px; }

/* 搜索框 */
.header-search {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 30px;
  padding: 6px 14px;
  gap: 8px;
  transition: var(--transition);
}
.header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(200,16,46,0.1); }
.header-search input {
  border: none;
  background: none;
  outline: none;
  font-size: 13px;
  width: 160px;
  color: var(--text);
}
.header-search button {
  color: var(--primary);
  font-size: 16px;
  padding: 0;
}

/* 搜索栏（导航下方） */
.search-bar-section {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark3) 100%);
  padding: 14px 0;
}
.search-bar-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
}
.search-bar-inner input {
  flex: 1;
  padding: 12px 20px;
  border-radius: 30px;
  border: 2px solid var(--gold);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 15px;
  outline: none;
}
.search-bar-inner input::placeholder { color: rgba(255,255,255,0.6); }
.search-bar-inner button {
  background: linear-gradient(135deg, var(--primary), var(--gold));
  color: #fff;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.search-bar-inner button:hover { transform: scale(1.05); box-shadow: var(--shadow); }
.search-hot-tags { text-align: center; margin-top: 8px; }
.search-hot-tags span { color: rgba(255,255,255,0.6); font-size: 12px; margin-right: 8px; }
.search-hot-tags a {
  color: var(--gold-light);
  font-size: 12px;
  margin: 0 4px;
  padding: 2px 8px;
  border: 1px solid rgba(212,160,23,0.4);
  border-radius: 12px;
}
.search-hot-tags a:hover { background: rgba(212,160,23,0.2); }

/* 移动端菜单 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* =============================================
   容器
   ============================================= */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 20px; }

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.breadcrumb-list { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.breadcrumb-list a { color: var(--text-light); }
.breadcrumb-list a:hover { color: var(--primary); }
.breadcrumb-list .sep { color: var(--border); }
.breadcrumb-list .current { color: var(--primary); font-weight: 600; }

/* =============================================
   英雄区域
   ============================================= */
.hero-section {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.45;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(15,52,96,0.7) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 650px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(200,16,46,0.8);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.hero-badge::before { content: '●'; color: #ff6b6b; animation: blink 1s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
.hero-title {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}
.hero-title span { color: var(--gold-light); }
.hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 13px 30px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(200,16,46,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(200,16,46,0.5); color: #fff; }
.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #fff;
  padding: 13px 30px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: var(--shadow-gold);
}
.btn-gold:hover { transform: translateY(-2px); color: #fff; }
.btn-outline {
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
  padding: 11px 28px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-outline:hover { background: rgba(255,255,255,0.15); color: #fff; }

/* 英雄区域右侧 */
.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.stat-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  color: #fff;
}
.stat-card .num {
  font-size: 32px;
  font-weight: 900;
  color: var(--gold-light);
  line-height: 1;
}
.stat-card .label { font-size: 12px; color: rgba(255,255,255,0.7); margin-top: 4px; }

/* =============================================
   实时开奖滚动条
   ============================================= */
.live-ticker {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 10px 0;
}
.ticker-inner { display: flex; align-items: center; gap: 16px; }
.ticker-label {
  background: var(--gold);
  color: var(--dark);
  padding: 3px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.ticker-balls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.ball {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.ball-red { background: radial-gradient(circle at 35% 35%, #ff6b6b, #c8102e); color: #fff; }
.ball-blue { background: radial-gradient(circle at 35% 35%, #6bb5ff, #1a5fa8); color: #fff; }
.ball-green { background: radial-gradient(circle at 35% 35%, #6bffb5, #1a8a5a); color: #fff; }
.ball-gold { background: radial-gradient(circle at 35% 35%, #ffd700, #b8860b); color: #fff; }
.ball-special { background: radial-gradient(circle at 35% 35%, #ff9f43, #e67e22); color: #fff; border: 2px solid #ffd700; }
.ticker-info { font-size: 13px; color: rgba(255,255,255,0.85); margin-left: auto; white-space: nowrap; }

/* =============================================
   区块标题
   ============================================= */
.section { padding: 60px 0; }
.section-alt { background: var(--bg2); }
.section-dark { background: var(--dark); color: #fff; }
.section-header { text-align: center; margin-bottom: 44px; }
.section-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  color: #fff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-dark .section-title { color: #fff; }
.section-title span { color: var(--primary); }
.section-desc { font-size: 15px; color: var(--text-light); max-width: 600px; margin: 0 auto; }
.section-dark .section-desc { color: rgba(255,255,255,0.7); }

/* =============================================
   视频卡片
   ============================================= */
.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.video-grid-3 { grid-template-columns: repeat(3, 1fr); }
.video-grid-2 { grid-template-columns: repeat(2, 1fr); }
.video-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--dark);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: var(--transition);
}
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(200,16,46,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.play-icon::after {
  content: '';
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}
.video-card:hover .play-icon { transform: scale(1.15); background: var(--primary); }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 4px;
}
.video-live-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.video-live-badge::before { content: '●'; animation: blink 1s infinite; }
.video-info { padding: 14px; }
.video-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  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: 12px; color: var(--text-light); }
.video-meta span { display: flex; align-items: center; gap: 4px; }
.video-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.video-tag {
  background: rgba(200,16,46,0.08);
  color: var(--primary);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid rgba(200,16,46,0.15);
}

/* =============================================
   开奖号码展示
   ============================================= */
.lottery-result-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.lottery-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}
.lottery-issue { font-size: 13px; color: var(--text-light); }
.lottery-date { font-size: 13px; color: var(--primary); font-weight: 600; }
.lottery-balls-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.plus-sign { font-size: 20px; color: var(--text-light); font-weight: 300; }
.lottery-result-footer {
  margin-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-light);
}

/* =============================================
   专家卡片
   ============================================= */
.expert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.expert-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: var(--transition);
  border: 1px solid var(--border);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary); }
.expert-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 14px;
  border: 3px solid var(--gold);
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary), var(--dark3));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: #fff;
  font-weight: 800;
}
.expert-name { font-size: 18px; font-weight: 800; color: var(--dark); margin-bottom: 4px; }
.expert-title { font-size: 13px; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.expert-desc { font-size: 13px; color: var(--text-light); line-height: 1.6; margin-bottom: 14px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 14px; }
.award-tag {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
}
.expert-btns { display: flex; gap: 8px; justify-content: center; }
.btn-sm {
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-sm-primary { background: var(--primary); color: #fff; }
.btn-sm-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-sm-outline { border: 1.5px solid var(--primary); color: var(--primary); }
.btn-sm-outline:hover { background: var(--primary); color: #fff; }

/* =============================================
   功能模块卡片
   ============================================= */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: var(--transition);
  border-top: 3px solid transparent;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--gold));
  transform: scaleX(0);
  transition: var(--transition);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(200,16,46,0.1), rgba(212,160,23,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 16px;
}
.feature-title { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feature-desc { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.feature-link { display: inline-flex; align-items: center; gap: 4px; color: var(--primary); font-size: 13px; font-weight: 600; margin-top: 14px; }
.feature-link:hover { gap: 8px; }

/* =============================================
   图片画廊
   ============================================= */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 1;
  position: relative;
  cursor: pointer;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.gallery-item:hover img { transform: scale(1.1); }
.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 12px;
}
.gallery-item:hover .gallery-item-overlay { opacity: 1; }
.gallery-item-overlay span { color: #fff; font-size: 13px; font-weight: 600; }

/* =============================================
   用户评价
   ============================================= */
.review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.review-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.review-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.review-user { font-size: 14px; font-weight: 700; color: var(--dark); }
.review-stars { color: var(--gold); font-size: 12px; }
.review-text { font-size: 13px; color: var(--text-light); line-height: 1.7; }
.review-date { font-size: 11px; color: var(--border); margin-top: 10px; }

/* =============================================
   FAQ
   ============================================= */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question.active { color: var(--primary); background: rgba(200,16,46,0.04); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary);
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-question.active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}
.faq-answer.open { max-height: 300px; padding: 0 22px 18px; }

/* =============================================
   合作品牌
   ============================================= */
.partner-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; align-items: center; }
.partner-item {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  transition: var(--transition);
  min-width: 120px;
  text-align: center;
}
.partner-item:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }

/* =============================================
   联系我们
   ============================================= */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-info-list { display: flex; flex-direction: column; gap: 16px; }
.contact-info-item { display: flex; align-items: flex-start; gap: 14px; }
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-label { font-size: 12px; color: var(--text-light); margin-bottom: 2px; }
.contact-value { font-size: 15px; font-weight: 600; color: var(--dark); }
.qr-grid { display: flex; gap: 24px; }
.qr-item { text-align: center; }
.qr-item img { width: 120px; height: 120px; border-radius: var(--radius); border: 2px solid var(--border); }
.qr-item p { font-size: 12px; color: var(--text-light); margin-top: 8px; }

/* =============================================
   社区入口
   ============================================= */
.community-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.community-card {
  background: linear-gradient(135deg, var(--dark), var(--dark3));
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  color: #fff;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.community-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(200,16,46,0.15), transparent);
  pointer-events: none;
}
.community-card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(200,16,46,0.3); }
.community-icon { font-size: 40px; margin-bottom: 14px; }
.community-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.community-desc { font-size: 13px; color: rgba(255,255,255,0.7); line-height: 1.6; margin-bottom: 16px; }
.community-btn {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 13px;
  transition: var(--transition);
}
.community-btn:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

/* =============================================
   社交分享
   ============================================= */
.share-bar {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.share-bar-inner { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.share-label { font-size: 14px; font-weight: 600; color: var(--text); }
.share-btns { display: flex; gap: 10px; }
.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  color: #fff;
}
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; color: #fff; }
.share-wechat { background: #07c160; }
.share-weibo { background: #e6162d; }
.share-douyin { background: #010101; }
.share-bilibili { background: #00a1d6; }

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 60px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo-name { color: #fff; font-size: 24px; }
.footer-brand .logo-sub { color: var(--gold); }
.footer-desc { font-size: 13px; line-height: 1.8; margin: 14px 0; color: rgba(255,255,255,0.6); }
.footer-social { display: flex; gap: 10px; }
.social-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}
.social-icon:hover { background: var(--primary); }
.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 13px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-links a:hover { color: var(--gold); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--gold); }
.footer-qr { display: flex; gap: 20px; }
.footer-qr-item { text-align: center; }
.footer-qr-item img { width: 80px; height: 80px; border-radius: 8px; }
.footer-qr-item p { font-size: 11px; color: rgba(255,255,255,0.5); margin-top: 6px; }

/* =============================================
   数据统计条
   ============================================= */
.stats-bar {
  background: linear-gradient(135deg, var(--primary-dark), var(--dark3));
  padding: 30px 0;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stats-item { text-align: center; color: #fff; }
.stats-num { font-size: 36px; font-weight: 900; color: var(--gold-light); line-height: 1; }
.stats-label { font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 6px; }

/* =============================================
   标签云
   ============================================= */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item {
  background: var(--white);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  transition: var(--transition);
}
.tag-item:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.tag-item.hot { background: rgba(200,16,46,0.08); border-color: rgba(200,16,46,0.3); color: var(--primary); }

/* =============================================
   内页标题区
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--dark), var(--dark3));
  padding: 50px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/hero-banner.jpg') center/cover;
  opacity: 0.15;
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1 { font-size: 36px; font-weight: 800; margin-bottom: 10px; }
.page-hero p { font-size: 15px; color: rgba(255,255,255,0.75); }

/* =============================================
   侧边栏
   ============================================= */
.content-with-sidebar { display: grid; grid-template-columns: 1fr 300px; gap: 30px; align-items: start; }
.sidebar-widget {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1px solid var(--border);
}
.widget-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-list { display: flex; flex-direction: column; gap: 10px; }
.sidebar-list-item { display: flex; gap: 10px; align-items: flex-start; }
.sidebar-list-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sidebar-list-text { font-size: 13px; color: var(--text); line-height: 1.5; }
.sidebar-list-text a { color: var(--text); }
.sidebar-list-text a:hover { color: var(--primary); }

/* =============================================
   分页
   ============================================= */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; }
.page-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--text);
  transition: var(--transition);
}
.page-btn:hover, .page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .review-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .content-with-sidebar { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .hero-title { font-size: 30px; }
  .section-title { font-size: 24px; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .video-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .main-nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .header-search { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .review-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 24px; }
  .video-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 40px 0; }
}

/* =============================================
   动画
   ============================================= */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.animate-fade-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade { animation: fadeIn 0.6s ease forwards; }

/* 懒加载占位 */
img[data-src] { background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* 滚动条美化 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* 选中颜色 */
::selection { background: rgba(200,16,46,0.2); color: var(--primary-dark); }

/* 视频模态框 */
.video-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.video-modal.open { opacity: 1; visibility: visible; }
.video-modal-content { position: relative; width: 90%; max-width: 900px; }
.video-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  background: none;
  border: none;
}
.video-modal video, .video-modal iframe { width: 100%; aspect-ratio: 16/9; border-radius: var(--radius); }

/* 回到顶部 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 100;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* 数据表格 */
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
.data-table td { padding: 11px 16px; border-bottom: 1px solid var(--border); }
.data-table tr:hover td { background: rgba(200,16,46,0.04); }
.data-table tr:nth-child(even) td { background: var(--bg); }
.data-table tr:nth-child(even):hover td { background: rgba(200,16,46,0.04); }

/* 加入社区步骤 */
.how-to-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step-card {
  text-align: center;
  padding: 24px 16px;
  position: relative;
}
.step-card::after {
  content: '→';
  position: absolute;
  right: -10px;
  top: 30px;
  font-size: 20px;
  color: var(--gold);
}
.step-card:last-child::after { display: none; }
.step-num {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--gold));
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}
.step-title { font-size: 15px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.step-desc { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* 移动端导航 */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  z-index: 9998;
  padding: 80px 20px 20px;
  overflow-y: auto;
}
.mobile-nav.open { display: block; }
.mobile-nav-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 28px;
  color: var(--text);
  cursor: pointer;
}
.mobile-nav-links { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav-links a {
  display: block;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  border-radius: var(--radius);
  border-bottom: 1px solid var(--border);
}
.mobile-nav-links a:hover { background: var(--bg); color: var(--primary); }