/* =====================================================
   海角社区 - 主样式文件
   Brand: 海角社区 | Domain: jwjm1k.cn
   ===================================================== */

/* ---- CSS变量 ---- */
:root {
  --primary: #E8336D;
  --primary-light: #FF6B9D;
  --primary-dark: #C0185A;
  --secondary: #FF8C42;
  --accent: #7B2FBE;
  --dark: #1A1A2E;
  --dark-2: #16213E;
  --dark-3: #0F3460;
  --text-main: #2D2D2D;
  --text-muted: #6B7280;
  --text-light: #9CA3AF;
  --bg-light: #FFF5F8;
  --bg-card: #FFFFFF;
  --border: #F0E0E8;
  --gradient-primary: linear-gradient(135deg, #E8336D 0%, #FF8C42 100%);
  --gradient-dark: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
  --gradient-hero: linear-gradient(135deg, #1A1A2E 0%, #2D1B4E 50%, #1A1A2E 100%);
  --shadow-sm: 0 2px 8px rgba(232,51,109,0.12);
  --shadow-md: 0 8px 24px rgba(232,51,109,0.18);
  --shadow-lg: 0 16px 48px rgba(232,51,109,0.22);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- 重置与基础 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  color: var(--text-main);
  background: #FAFAFA;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- 通用工具类 ---- */
.container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }
.section-padding { padding: 80px 0; }
.section-padding-sm { padding: 50px 0; }
.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-dark {
  background: var(--dark);
  color: #fff;
}
.btn-dark:hover { background: var(--dark-3); transform: translateY(-2px); }
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(232,51,109,0.1);
  color: var(--primary);
}
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  background: var(--gradient-primary);
  color: #fff;
}

/* ---- 顶部公告栏 ---- */
.top-bar {
  background: var(--gradient-primary);
  color: #fff;
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
}
.top-bar a { color: #fff; text-decoration: underline; }

/* ---- 导航栏 ---- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.navbar-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 20px;
  max-width: 1240px;
  margin: 0 auto;
  height: 68px;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.navbar-brand .brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: contain;
}
.navbar-brand .brand-name {
  font-size: 20px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-item a {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
}
.nav-item a:hover, .nav-item a.active {
  color: var(--primary);
  background: rgba(232,51,109,0.08);
}
.nav-item a .nav-icon { font-size: 16px; }

/* 搜索框 */
.navbar-search {
  display: flex;
  align-items: center;
  background: var(--bg-light);
  border: 1.5px solid var(--border);
  border-radius: 50px;
  padding: 0 16px;
  height: 40px;
  gap: 8px;
  transition: var(--transition);
  min-width: 200px;
}
.navbar-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232,51,109,0.1);
}
.navbar-search input {
  border: none;
  background: none;
  outline: none;
  font-size: 14px;
  color: var(--text-main);
  width: 100%;
  font-family: inherit;
}
.navbar-search input::placeholder { color: var(--text-light); }
.navbar-search .search-btn {
  color: var(--primary);
  font-size: 16px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}
.navbar-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.navbar-actions .btn { padding: 8px 20px; font-size: 13px; }

/* 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(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

/* 导航下方搜索栏（移动端） */
.mobile-search-bar {
  display: none;
  padding: 10px 20px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.mobile-search-bar .navbar-search { min-width: unset; width: 100%; }

/* ---- Hero区域 ---- */
.hero {
  position: relative;
  min-height: 560px;
  background: var(--gradient-hero);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero_banner.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(26,26,46,0.95) 0%, rgba(26,26,46,0.6) 60%, rgba(26,26,46,0.2) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  margin: 0 auto;
  padding: 80px 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-text .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232,51,109,0.2);
  border: 1px solid rgba(232,51,109,0.4);
  color: var(--primary-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-text h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 900;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero-text h1 span { color: var(--primary-light); }
.hero-text .hero-desc {
  color: rgba(255,255,255,0.75);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
}
.hero-stat .num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.hero-stat .num span { color: var(--primary-light); }
.hero-stat .label {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}
.hero-video-preview {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16/10;
  background: var(--dark-2);
}
.hero-video-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
}
.hero-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  background: rgba(232,51,109,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 0 0 12px rgba(232,51,109,0.2);
}
.hero-play-btn:hover {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 0 0 20px rgba(232,51,109,0.15);
}
.hero-play-btn svg { width: 28px; height: 28px; fill: #fff; margin-left: 4px; }
.hero-video-label {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: #fff;
  font-size: 13px;
}
.hero-video-label strong { display: block; font-size: 15px; margin-bottom: 2px; }

/* ---- 分区标题 ---- */
.section-header { margin-bottom: 48px; }
.section-header.text-center { text-align: center; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.section-label::before, .section-label::after {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 560px;
}
.section-header.text-center .section-desc { margin: 0 auto; }

/* ---- 视频卡片 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.video-grid-4 { grid-template-columns: repeat(4, 1fr); }
.video-grid-3 { grid-template-columns: repeat(3, 1fr); }
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  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-md);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--dark-2);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.06); }
.video-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.video-card:hover .video-play-overlay { background: rgba(0,0,0,0.35); }
.play-btn-circle {
  width: 52px;
  height: 52px;
  background: rgba(232,51,109,0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(232,51,109,0.5);
}
.video-card:hover .play-btn-circle {
  opacity: 1;
  transform: scale(1);
}
.play-btn-circle svg { width: 20px; height: 20px; fill: #fff; margin-left: 3px; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-quality {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}
.video-info { padding: 14px 16px; }
.video-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}
.video-stats { display: flex; gap: 12px; }
.video-stat { display: flex; align-items: center; gap: 4px; }
.video-category {
  background: rgba(232,51,109,0.1);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

/* ---- 功能分类卡片 ---- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.category-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.category-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.category-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 26px;
}
.category-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
}
.category-count { font-size: 12px; color: var(--text-muted); }

/* ---- 专家卡片 ---- */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.expert-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: var(--transition);
}
.expert-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.expert-photo {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}
.expert-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.expert-card:hover .expert-photo img { transform: scale(1.05); }
.expert-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 50px;
}
.expert-info { padding: 18px; }
.expert-name { font-size: 17px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.expert-title { font-size: 13px; color: var(--primary); font-weight: 600; margin-bottom: 8px; }
.expert-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.expert-award {
  font-size: 11px;
  background: var(--bg-light);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 50px;
  border: 1px solid var(--border);
}
.expert-actions { display: flex; gap: 8px; }
.expert-actions .btn { padding: 8px 16px; font-size: 12px; flex: 1; justify-content: center; }

/* ---- 合作品牌墙 ---- */
.partner-wall {
  background: var(--bg-light);
  padding: 60px 0;
}
.partner-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 40px;
}
.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 140px;
  height: 60px;
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  transition: var(--transition);
  border: 1.5px solid var(--border);
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary); transform: scale(1.05); }

/* ---- 用户评价 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.review-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1.5px solid var(--border);
  transition: var(--transition);
}
.review-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.review-stars { color: #F59E0B; font-size: 16px; margin-bottom: 12px; }
.review-text { font-size: 14px; color: var(--text-main); line-height: 1.7; margin-bottom: 16px; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.review-name { font-size: 14px; font-weight: 600; color: var(--dark); }
.review-date { font-size: 12px; color: var(--text-light); }

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1.5px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active { border-color: var(--primary); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  gap: 16px;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  color: var(--primary);
  transition: var(--transition);
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  display: none;
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq-item.active .faq-answer { display: block; }

/* ---- 联系我们 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
.contact-info-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 24px; color: var(--dark); }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.contact-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(232,51,109,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.contact-value { font-size: 15px; font-weight: 600; color: var(--dark); }
.qr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.qr-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1.5px solid var(--border);
}
.qr-card img {
  width: 140px;
  height: 140px;
  object-fit: contain;
  margin: 0 auto 12px;
  border-radius: var(--radius-sm);
}
.qr-label { font-size: 14px; font-weight: 600; color: var(--dark); margin-bottom: 4px; }
.qr-sub { font-size: 12px; color: var(--text-muted); }

/* ---- 社区入口 ---- */
.community-entries {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.community-entry {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1.5px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.community-entry:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.community-entry-icon { font-size: 36px; margin-bottom: 12px; }
.community-entry-name { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.community-entry-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ---- AI赋能区域 ---- */
.ai-section { background: var(--gradient-dark); color: #fff; }
.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ai-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  transition: var(--transition);
}
.ai-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(232,51,109,0.5);
  transform: translateY(-4px);
}
.ai-card-icon { font-size: 40px; margin-bottom: 16px; }
.ai-card-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.ai-card-desc { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.7; }

/* ---- 加入社区指南 ---- */
.how-to-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.how-to-step {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  position: relative;
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step-icon { font-size: 32px; margin-bottom: 12px; }
.step-title { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.step-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ---- 分享按钮 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-label { font-size: 14px; font-weight: 600; color: var(--text-muted); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.share-btn:hover { transform: translateY(-2px); opacity: 0.9; }
.share-wechat { background: #07C160; color: #fff; }
.share-weibo { background: #E6162D; color: #fff; }
.share-douyin { background: #000; color: #fff; }
.share-bilibili { background: #00A1D6; color: #fff; }

/* ---- 页脚 ---- */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-brand .brand-logo img { width: 36px; height: 36px; border-radius: 8px; }
.footer-brand .brand-logo span {
  font-size: 20px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.social-link {
  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-link:hover { background: var(--primary); transform: translateY(-2px); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--primary-light); }
.footer-update { font-size: 12px; color: rgba(255,255,255,0.35); }

/* ---- 面包屑 ---- */
.breadcrumb {
  background: var(--bg-light);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb-list a { color: var(--text-muted); }
.breadcrumb-list a:hover { color: var(--primary); }
.breadcrumb-list .sep { color: var(--text-light); }
.breadcrumb-list .current { color: var(--primary); font-weight: 600; }

/* ---- 内页Banner ---- */
.page-banner {
  background: var(--gradient-hero);
  padding: 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(232,51,109,0.2) 0%, transparent 70%);
}
.page-banner h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
}
.page-banner p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}

/* ---- 滚动动画 ---- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---- 加载更多按钮 ---- */
.load-more-wrap { text-align: center; margin-top: 40px; }

/* ---- 响应式 ---- */
@media (max-width: 1200px) {
  .video-grid-4 { grid-template-columns: repeat(3, 1fr); }
  .expert-grid { grid-template-columns: repeat(3, 1fr); }
  .category-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 992px) {
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-video-preview { max-width: 480px; margin: 0 auto; }
  .video-grid-4, .video-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .community-entries { grid-template-columns: repeat(2, 1fr); }
  .how-to-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .hamburger { display: flex; }
  .navbar-search { display: none; }
  .mobile-search-bar { display: block; }
  .navbar-actions .btn-outline { display: none; }
  .section-padding { padding: 50px 0; }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .video-grid-4, .video-grid-3, .video-grid { grid-template-columns: repeat(2, 1fr); }
  .expert-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .qr-grid { grid-template-columns: 1fr 1fr; }
  .how-to-grid { grid-template-columns: 1fr 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
}
@media (max-width: 480px) {
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .video-grid-4, .video-grid-3, .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .community-entries { grid-template-columns: 1fr 1fr; }
  .how-to-grid { grid-template-columns: 1fr; }
  .qr-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
}

/* ---- 移动端菜单 ---- */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 9999;
}
.mobile-menu.open { display: block; }
.mobile-menu-panel {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: #fff;
  padding: 24px 20px;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}
.mobile-menu.open .mobile-menu-panel { transform: translateX(0); }
.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.mobile-menu-close { font-size: 24px; cursor: pointer; color: var(--text-muted); }
.mobile-nav-links { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
}
.mobile-nav-links a:hover { background: var(--bg-light); color: var(--primary); }

/* ---- 滚动条美化 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ---- 视频播放弹窗 ---- */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
.video-modal.open { display: flex; }
.video-modal-inner {
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 800px;
  width: 90%;
  position: relative;
}
.video-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #fff;
  font-size: 20px;
  z-index: 1;
}
.video-modal video { width: 100%; display: block; }
.video-placeholder {
  aspect-ratio: 16/9;
  background: var(--dark-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  gap: 12px;
}
.video-placeholder .big-play { font-size: 60px; color: var(--primary-light); }
.video-placeholder p { font-size: 16px; }

/* ---- 热门标签云 ---- */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-cloud-item {
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  background: var(--bg-light);
  color: var(--text-main);
  border: 1.5px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}
.tag-cloud-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---- 统计数据展示 ---- */
.stats-section { background: var(--bg-light); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 42px;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: 14px; color: var(--text-muted); font-weight: 500; }
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

/* ---- 法律文档页（隐私政策/用户协议）---- */
.legal-doc {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
.legal-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  margin-bottom: 36px;
  border-left: 4px solid var(--primary);
}
.legal-doc h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin: 32px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.legal-doc h2:first-of-type { margin-top: 0; }
.legal-doc p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 14px;
}
.legal-doc ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.legal-doc ul li {
  font-size: 14px;
  color: var(--text-muted);
  padding: 8px 16px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
}

/* ---- 娱乐专区卡片 ---- */
.entertainment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ent-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: var(--transition);
}
.ent-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.ent-thumb {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.ent-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.ent-card:hover .ent-thumb img { transform: scale(1.06); }
.ent-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
}
.ent-body { padding: 20px; }
.ent-title { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.ent-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; margin-bottom: 12px; }
.ent-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.ent-tag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 50px;
  background: var(--bg-light);
  color: var(--primary);
  border: 1px solid var(--border);
}

/* ---- 影视传媒展示区 ---- */
.media-showcase {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.media-showcase-item {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1.5px solid var(--border);
  transition: var(--transition);
}
.media-showcase-item:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.media-icon { font-size: 40px; margin-bottom: 14px; }
.media-title { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.media-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.btn-sm { padding: 8px 20px; font-size: 13px; }

/* ---- 资质认证徽章 ---- */
.footer-cert {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0 16px;
}
.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 50px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.6);
}

/* ---- 导航Logo大图 ---- */
.brand-logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* ---- AI网格4列 ---- */
.ai-grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 992px) {
  .media-showcase { grid-template-columns: repeat(2, 1fr); }
  .entertainment-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .media-showcase { grid-template-columns: 1fr; }
  .entertainment-grid { grid-template-columns: 1fr; }
  .legal-doc { padding: 24px 20px; }
  .legal-meta { flex-direction: column; gap: 8px; }
  .ai-grid { grid-template-columns: 1fr; }
}