/* ============================================
   每日大赛传媒 - 主样式表 | fmhvdzir.cn
   ============================================ */

/* 基础重置 */
*, *::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: #1a1a2e;
  background: #fff;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: #e94560; text-decoration: none; transition: color .2s; }
a:hover { color: #c0392b; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

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

/* ============ 顶部公告栏 ============ */
.top-bar {
  background: linear-gradient(90deg, #e94560, #0f3460);
  color: #fff;
  text-align: center;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
}
.top-bar a { color: #ffd700; font-weight: 700; }
.top-bar a:hover { color: #fff; }

/* ============ 头部导航 ============ */
.site-header {
  background: #0f3460;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
}
.logo img { border-radius: 50%; border: 2px solid rgba(255,255,255,.3); }
.logo-text { display: flex; flex-direction: column; }
.logo-name {
  font-size: 22px;
  font-weight: 800;
  color: #ffd700;
  letter-spacing: 2px;
  line-height: 1.2;
}
.logo-slogan { font-size: 11px; color: rgba(255,255,255,.7); letter-spacing: 1px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > a, .nav-dropdown > a {
  color: rgba(255,255,255,.85);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all .2s;
  white-space: nowrap;
}
.main-nav > a:hover, .nav-dropdown > a:hover,
.main-nav > a.active, .nav-dropdown > a.active {
  background: rgba(233,69,96,.8);
  color: #fff;
}
.nav-dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0,0,0,.15);
  min-width: 160px;
  padding: 8px 0;
  z-index: 100;
}
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block;
  padding: 10px 18px;
  color: #1a1a2e;
  font-size: 14px;
  transition: background .2s;
}
.dropdown-menu a:hover { background: #f0f4ff; color: #e94560; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.hamburger span { width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }

.mobile-nav {
  background: #0a2447;
  padding: 12px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav a {
  color: rgba(255,255,255,.85);
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 15px;
  display: block;
}
.mobile-nav a:hover { background: rgba(233,69,96,.6); color: #fff; }

/* ============ 搜索栏 ============ */
.search-bar-section {
  background: #16213e;
  padding: 12px 20px;
}
.search-bar-inner {
  max-width: 700px;
  margin: 0 auto;
}
.search-bar-inner form {
  display: flex;
  gap: 0;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
#mainSearchInput {
  flex: 1;
  padding: 12px 20px;
  border: none;
  font-size: 14px;
  outline: none;
  background: #fff;
  color: #1a1a2e;
}
.search-bar-inner button {
  padding: 12px 28px;
  background: linear-gradient(135deg, #e94560, #c0392b);
  color: #fff;
  border: none;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity .2s;
}
.search-bar-inner button:hover { opacity: .9; }

/* ============ 面包屑 ============ */
.breadcrumb-bar {
  background: #f8f9fa;
  padding: 10px 20px;
  border-bottom: 1px solid #e9ecef;
}
.breadcrumb { font-size: 13px; color: #666; }
.breadcrumb a { color: #e94560; }
.breadcrumb .sep { margin: 0 8px; color: #ccc; }

/* ============ Hero Banner ============ */
.hero-banner {
  position: relative;
  height: 580px;
  overflow: hidden;
  background: linear-gradient(135deg, #0f3460 0%, #16213e 50%, #e94560 100%);
}
.hero-banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,52,96,.85) 0%, rgba(233,69,96,.5) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.hero-content { text-align: center; color: #fff; padding: 20px; max-width: 800px; position: relative; z-index: 2; }
.hero-content h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  letter-spacing: 4px;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,.5);
}
.hero-sub {
  font-size: 16px;
  color: #ffd700;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.hero-desc {
  font-size: 15px;
  color: rgba(255,255,255,.85);
  max-width: 600px;
  margin: 0 auto 28px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, #e94560, #c0392b);
  color: #fff;
  padding: 14px 32px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 15px;
  transition: transform .2s, box-shadow .2s;
  display: inline-block;
  cursor: pointer;
  border: none;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(233,69,96,.4); color: #fff; }
.btn-outline {
  background: transparent;
  color: #fff;
  padding: 13px 32px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid rgba(255,255,255,.7);
  transition: all .2s;
  display: inline-block;
}
.btn-outline:hover { background: rgba(255,255,255,.15); color: #fff; }
.btn-outline-sm {
  background: transparent;
  color: #fff;
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,.7);
  display: inline-block;
  transition: all .2s;
}
.btn-outline-sm:hover { background: rgba(255,255,255,.2); color: #fff; }
.btn-sm {
  background: linear-gradient(135deg, #e94560, #c0392b);
  color: #fff;
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  display: inline-block;
  transition: all .2s;
}
.btn-sm:hover { opacity: .9; color: #fff; }
.btn-sm-outline {
  background: transparent;
  color: #e94560;
  padding: 7px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid #e94560;
  display: inline-block;
  transition: all .2s;
}
.btn-sm-outline:hover { background: #e94560; color: #fff; }

/* ============ 统计数字 ============ */
.stats-bar {
  background: linear-gradient(135deg, #0f3460, #16213e);
  padding: 30px 20px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat-item .num {
  display: block;
  font-size: 32px;
  font-weight: 900;
  color: #ffd700;
  line-height: 1.2;
}
.stat-item .label {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,.7);
  margin-top: 4px;
}

/* ============ 通用 Section ============ */
.section { padding: 70px 20px; }
.section-dark { background: #0f3460; color: #fff; }
.section-gray { background: #f8f9fa; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: #1a1a2e;
  margin-bottom: 12px;
}
.section-dark .section-header h2 { color: #fff; }
.section-header p { font-size: 15px; color: #666; max-width: 600px; margin: 0 auto; }
.section-dark .section-header p { color: rgba(255,255,255,.7); }
.section-line {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #e94560, #ffd700);
  margin: 16px auto 0;
  border-radius: 2px;
}

/* ============ 传媒标签云 ============ */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.tag-cloud a {
  padding: 7px 18px;
  border-radius: 20px;
  background: #f0f4ff;
  color: #0f3460;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid #dde4f5;
  transition: all .2s;
}
.tag-cloud a:hover, .tag-cloud a.active {
  background: #e94560;
  color: #fff;
  border-color: #e94560;
}

/* ============ 传媒卡片 ============ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.video-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  transition: transform .3s, box-shadow .3s;
}
.video-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.15); }
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  cursor: pointer;
  background: #1a1a2e;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background .3s;
}
.video-thumb:hover .play-btn { background: rgba(0,0,0,.4); }
.play-icon {
  width: 56px;
  height: 56px;
  background: rgba(233,69,96,.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity .3s, transform .3s;
}
.play-icon::after {
  content: '';
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
  margin-left: 4px;
}
.video-thumb:hover .play-icon { opacity: 1; transform: scale(1); }
.video-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: #e94560;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
}
.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,.7);
  color: #fff;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 4px;
}
.video-info { padding: 16px; }
.video-info h3 {
  font-size: 15px;
  font-weight: 700;
  color: #1a1a2e;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: #888;
  margin-bottom: 10px;
}
.video-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  background: #f0f4ff;
  color: #0f3460;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 10px;
  border: 1px solid #dde4f5;
}

/* ============ 娱乐专区 ============ */
.ent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.ent-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: transform .3s, background .3s;
}
.ent-card:hover { transform: translateY(-6px); background: rgba(255,255,255,.12); }
.ent-icon { font-size: 48px; margin-bottom: 16px; }
.ent-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.ent-card p { font-size: 14px; color: rgba(255,255,255,.75); line-height: 1.7; margin-bottom: 20px; }
.ent-link { color: #ffd700; font-weight: 700; font-size: 14px; }
.ent-link:hover { color: #fff; }

/* ============ AI赋能 ============ */
.ai-section { background: linear-gradient(135deg, #f8f9fa, #e8f4f8); }
.ai-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.ai-text h2 { font-size: 32px; font-weight: 800; color: #1a1a2e; margin-bottom: 8px; }
.ai-sub { font-size: 16px; color: #666; margin-bottom: 28px; }
.ai-features { list-style: none; display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.ai-features li { display: flex; gap: 16px; align-items: flex-start; }
.ai-icon { font-size: 28px; flex-shrink: 0; margin-top: 2px; }
.ai-features h4 { font-size: 16px; font-weight: 700; color: #1a1a2e; margin-bottom: 4px; }
.ai-features p { font-size: 14px; color: #666; }
.ai-img img { border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,.15); }

/* ============ 社区功能 ============ */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.community-card {
  border-radius: 16px;
  overflow: hidden;
  height: 280px;
  position: relative;
  background-size: cover;
  background-position: center;
  cursor: pointer;
  transition: transform .3s;
}
.community-card:hover { transform: scale(1.02); }
.community-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.8) 0%, rgba(0,0,0,.2) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
}
.community-overlay h3 { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 8px; }
.community-overlay p { font-size: 13px; color: rgba(255,255,255,.8); margin-bottom: 16px; }

/* ============ 专家展示 ============ */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
}
.expert-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  transition: transform .3s;
}
.expert-card:hover { transform: translateY(-6px); }
.expert-card img { width: 100%; height: 240px; object-fit: cover; }
.expert-avatar-placeholder {
  width: 100%;
  height: 240px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  color: #fff;
  font-weight: 900;
}
.expert-info { padding: 24px; }
.expert-info h3 { font-size: 20px; font-weight: 800; color: #1a1a2e; margin-bottom: 4px; }
.expert-title { font-size: 13px; color: #e94560; font-weight: 600; margin-bottom: 12px; }
.expert-info p { font-size: 14px; color: #555; line-height: 1.7; margin-bottom: 14px; }
.expert-awards { display: flex; flex-direction: column; gap: 4px; margin-bottom: 14px; }
.expert-awards span { font-size: 12px; color: #666; }
.expert-social { display: flex; gap: 8px; margin-bottom: 16px; }
.expert-social a {
  padding: 5px 14px;
  background: #f0f4ff;
  color: #0f3460;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  transition: all .2s;
}
.expert-social a:hover { background: #0f3460; color: #fff; }
.expert-btns { display: flex; gap: 10px; }

/* ============ 合作品牌 ============ */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 50px;
}
.partner-logo {
  background: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  color: #555;
  transition: all .2s;
}
.partner-logo:hover { background: #0f3460; color: #fff; transform: translateY(-3px); }

/* ============ How-To ============ */
.howto-section { text-align: center; }
.howto-section h3 { font-size: 24px; font-weight: 800; margin-bottom: 36px; color: #1a1a2e; }
.howto-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step { text-align: center; padding: 24px; }
.step-num {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #e94560, #c0392b);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  margin: 0 auto 16px;
}
.step h4 { font-size: 16px; font-weight: 700; color: #1a1a2e; margin-bottom: 8px; }
.step p { font-size: 14px; color: #666; }

/* ============ 联系区块 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-card {
  background: rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 32px;
  border: 1px solid rgba(255,255,255,.15);
}
.contact-card h3 { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 12px; }
.contact-card p { font-size: 14px; color: rgba(255,255,255,.75); margin-bottom: 20px; }
.contact-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.contact-list li { font-size: 14px; color: rgba(255,255,255,.8); display: flex; align-items: center; gap: 8px; }
.community-entries { display: flex; flex-direction: column; gap: 20px; }
.entry-item { display: flex; gap: 16px; align-items: flex-start; }
.entry-icon { font-size: 28px; flex-shrink: 0; }
.entry-item h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.entry-item p { font-size: 13px; color: rgba(255,255,255,.7); }
.app-qr {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,.2);
  border-radius: 8px;
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.5);
  font-size: 11px;
}

/* ============ 用户评价 ============ */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.review-card {
  background: #fff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  border-left: 4px solid #e94560;
  transition: transform .3s;
}
.review-card:hover { transform: translateY(-4px); }
.review-stars { color: #ffd700; font-size: 18px; margin-bottom: 12px; }
.review-card p { font-size: 14px; color: #555; line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #e94560, #c0392b);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.reviewer div { display: flex; flex-direction: column; gap: 2px; }
.reviewer span[itemprop="author"] { font-size: 14px; font-weight: 700; color: #1a1a2e; }
.review-date { font-size: 12px; color: #999; }

/* ============ FAQ ============ */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  border: 1px solid #e9ecef;
}
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  color: #1a1a2e;
  transition: background .2s;
}
.faq-q:hover { background: #f8f9fa; }
.faq-arrow { color: #e94560; font-size: 12px; transition: transform .3s; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
  display: none;
  padding: 0 24px 18px;
  font-size: 14px;
  color: #555;
  line-height: 1.8;
}
.faq-item.open .faq-a { display: block; }

/* ============ 页脚 ============ */
.site-footer { background: #0a1628; color: rgba(255,255,255,.7); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 60px 20px 40px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-brand p { font-size: 13px; line-height: 1.8; margin-bottom: 20px; }
.footer-qr { display: flex; gap: 20px; }
.qr-item { text-align: center; }
.qr-code {
  width: 70px;
  height: 70px;
  background: rgba(255,255,255,.1);
  border-radius: 8px;
  margin-bottom: 6px;
}
.qr-item span { font-size: 11px; color: rgba(255,255,255,.5); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col li a { font-size: 13px; color: rgba(255,255,255,.6); transition: color .2s; }
.footer-col li a:hover { color: #ffd700; }
.social-share {
  background: #0f3460;
  padding: 14px 20px;
  text-align: center;
}
.social-share .container { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }
.social-share span { font-size: 13px; color: rgba(255,255,255,.7); }
.share-btn {
  padding: 6px 16px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .2s;
}
.share-btn:hover { opacity: .8; }
.share-btn.weixin { background: #07c160; color: #fff; }
.share-btn.weibo { background: #e6162d; color: #fff; }
.share-btn.douyin { background: #010101; color: #fff; }
.share-btn.bilibili { background: #00a1d6; color: #fff; }
.footer-bottom {
  background: #060e1c;
  padding: 20px;
  text-align: center;
}
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,.4); }
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: #ffd700; }

/* ============ 视频弹窗 ============ */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.modal-inner {
  background: #1a1a2e;
  border-radius: 16px;
  width: 90%;
  max-width: 700px;
  position: relative;
  overflow: hidden;
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: rgba(255,255,255,.15);
  border: none;
  color: #fff;
  font-size: 24px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background .2s;
}
.modal-close:hover { background: #e94560; }
.mock-progress {
  width: 80%;
  height: 4px;
  background: rgba(255,255,255,.2);
  border-radius: 2px;
  margin: 24px auto 0;
  overflow: hidden;
}
.mock-bar {
  height: 100%;
  background: linear-gradient(90deg, #e94560, #ffd700);
  border-radius: 2px;
  width: 0;
  animation: progress 3s ease-in-out forwards;
}
@keyframes progress { to { width: 100%; } }

/* ============ 搜索弹窗 ============ */
.search-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 9998;
  align-items: center;
  justify-content: center;
}
.search-modal-inner {
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  text-align: center;
  max-width: 400px;
  width: 90%;
}
.search-result-tip { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.search-result-tip p { font-size: 16px; color: #1a1a2e; font-weight: 600; }
.search-result-tip button {
  padding: 10px 28px;
  background: #e94560;
  color: #fff;
  border: none;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
}

/* ============ 页面Hero ============ */
.page-hero {
  padding: 60px 20px;
  text-align: center;
  color: #fff;
}
.page-hero h1 { font-size: clamp(28px, 5vw, 48px); font-weight: 900; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: rgba(255,255,255,.8); }

/* ============ 工具卡片 ============ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.tool-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  text-align: center;
  transition: transform .3s;
}
.tool-card:hover { transform: translateY(-6px); }
.tool-icon { font-size: 48px; margin-bottom: 16px; }
.tool-card h3 { font-size: 18px; font-weight: 800; color: #1a1a2e; margin-bottom: 12px; }
.tool-card p { font-size: 14px; color: #666; line-height: 1.7; margin-bottom: 16px; }
.tool-features { text-align: left; margin-bottom: 24px; display: flex; flex-direction: column; gap: 6px; }
.tool-features li { font-size: 13px; color: #555; }

/* ============ 教程卡片 ============ */
.tutorial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.tutorial-card {
  background: #fff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  transition: transform .3s;
}
.tutorial-card:hover { transform: translateY(-4px); }
.tutorial-num {
  font-size: 36px;
  font-weight: 900;
  color: #e94560;
  opacity: .3;
  margin-bottom: 8px;
}
.tutorial-card h3 { font-size: 17px; font-weight: 700; color: #1a1a2e; margin-bottom: 10px; }
.tutorial-card p { font-size: 14px; color: #666; margin-bottom: 14px; }
.tutorial-meta { display: flex; gap: 12px; font-size: 12px; color: #888; margin-bottom: 16px; }

/* ============ 社区功能 ============ */
.community-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.comm-feat {
  background: #fff;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  transition: transform .3s;
}
.comm-feat:hover { transform: translateY(-6px); }
.comm-icon { font-size: 48px; margin-bottom: 16px; }
.comm-feat h3 { font-size: 18px; font-weight: 800; color: #1a1a2e; margin-bottom: 12px; }
.comm-feat p { font-size: 14px; color: #666; margin-bottom: 16px; }
.live-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  color: #07c160;
  font-weight: 600;
  margin-bottom: 16px;
}
.live-dot {
  width: 8px;
  height: 8px;
  background: #07c160;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.3)} }

/* ============ 话题列表 ============ */
.topic-list { display: flex; flex-direction: column; gap: 12px; }
.topic-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  transition: transform .2s;
}
.topic-item:hover { transform: translateX(4px); }
.topic-rank {
  width: 36px;
  height: 36px;
  background: #f0f4ff;
  color: #0f3460;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 900;
  flex-shrink: 0;
}
.topic-rank.hot { background: #e94560; color: #fff; font-size: 11px; }
.topic-content h4 { font-size: 15px; font-weight: 700; color: #1a1a2e; margin-bottom: 6px; }
.topic-content h4 a { color: #1a1a2e; }
.topic-content h4 a:hover { color: #e94560; }
.topic-meta { display: flex; gap: 12px; font-size: 12px; color: #888; }

/* ============ 技能卡片 ============ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.skill-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  transition: transform .3s;
}
.skill-card:hover { transform: translateY(-6px); }
.skill-card img { width: 100%; height: 200px; object-fit: cover; }
.skill-info { padding: 20px; }
.skill-info h3 { font-size: 17px; font-weight: 700; color: #1a1a2e; margin-bottom: 10px; }
.skill-info p { font-size: 14px; color: #666; margin-bottom: 14px; }
.skill-tags { display: flex; gap: 8px; margin-bottom: 14px; }

/* ============ 关于页 ============ */
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h2 { font-size: 30px; font-weight: 800; color: #1a1a2e; margin-bottom: 16px; }
.about-text p { font-size: 15px; color: #555; line-height: 1.8; margin-bottom: 16px; }
.about-stats { display: flex; gap: 24px; margin-top: 24px; }
.about-stat { text-align: center; }
.about-stat .num { display: block; font-size: 28px; font-weight: 900; color: #e94560; }
.about-stat .label { font-size: 12px; color: #888; }

/* ============ 时间线 ============ */
.timeline { position: relative; padding-left: 40px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, #e94560, #0f3460);
}
.timeline-item { position: relative; margin-bottom: 36px; }
.timeline-year {
  position: absolute;
  left: -40px;
  width: 32px;
  height: 32px;
  background: #e94560;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 900;
  top: 4px;
}
.timeline-content { background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 2px 10px rgba(0,0,0,.06); }
.timeline-content h4 { font-size: 16px; font-weight: 700; color: #1a1a2e; margin-bottom: 8px; }
.timeline-content p { font-size: 14px; color: #666; }

/* ============ 联系页 ============ */
.contact-page-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-info h2 { font-size: 26px; font-weight: 800; color: #1a1a2e; margin-bottom: 12px; }
.contact-info p { font-size: 14px; color: #666; margin-bottom: 24px; }
.contact-items { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.ci-icon { font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.contact-item h4 { font-size: 14px; font-weight: 700; color: #1a1a2e; margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: #555; }
.contact-item a { color: #e94560; }
.contact-form-wrap h2 { font-size: 26px; font-weight: 800; color: #1a1a2e; margin-bottom: 24px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 14px; font-weight: 600; color: #1a1a2e; }
.form-group input, .form-group select, .form-group textarea {
  padding: 12px 16px;
  border: 1px solid #dde4f5;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition: border-color .2s;
  font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: #e94560;
}

/* ============ 淡入动画 ============ */
.fade-in { opacity: 1; transform: translateY(0); transition: opacity .6s ease, transform .6s ease; }
.js-loaded .fade-in { opacity: 0; transform: translateY(20px); }
.js-loaded .fade-in.visible { opacity: 1; transform: translateY(0); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ai-inner { grid-template-columns: 1fr; }
  .ai-img { display: none; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .howto-steps { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .about-inner { grid-template-columns: 1fr; }
  .contact-page-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .hero-banner { height: 420px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .howto-steps { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .ent-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 50px 16px; }
}
@media (max-width: 480px) {
  .hero-content h1 { font-size: 28px; }
  .ent-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item .num { font-size: 24px; }
}