@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700;900&family=ZCOOL+XiaoWei&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #c62828;
  --primary-dark: #a31f1f;
  --secondary: #1976d2;
  --secondary-dark: #125a9e;
  --bg-light: #fafafa;
  --text-dark: #212121;
  --text-muted: #666;
  --border: #e0e0e0;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 6px 24px rgba(198, 40, 40, 0.18);
}

body {
  font-family: 'Noto Sans SC', sans-serif;
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s;
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  width: 100%;
}

header {
  background: #fff;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.top-bar {
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  padding: 6px 0;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar a {
  color: #fff;
  opacity: 0.9;
  margin-left: 16px;
}

.top-bar a:hover {
  opacity: 1;
  text-decoration: underline;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 24px;
}

.logo {
  font-family: 'ZCOOL XiaoWei', serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 2px;
}

.logo span {
  color: var(--secondary);
}

.search-box {
  display: flex;
  flex: 1;
  max-width: 480px;
  border: 2px solid var(--primary);
  border-radius: 24px;
  overflow: hidden;
  background: #fff;
}

.search-box input {
  flex: 1;
  border: none;
  padding: 10px 20px;
  font-size: 14px;
  font-family: 'Noto Sans SC', sans-serif;
  outline: none;
}

.search-box button {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0 24px;
  font-size: 14px;
  cursor: pointer;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 500;
  transition: background 0.2s;
}

.search-box button:hover {
  background: var(--primary-dark);
}

.header-icons {
  display: flex;
  gap: 16px;
  align-items: center;
}

.header-icons a {
  color: var(--text-dark);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.header-icons a:hover {
  color: var(--primary);
}

nav.main-nav {
  background: var(--primary);
}

nav.main-nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

nav.main-nav li {
  position: relative;
}

nav.main-nav a {
  display: block;
  padding: 12px 24px;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.2s;
}

nav.main-nav a:hover,
nav.main-nav a.active {
  background: var(--primary-dark);
}

nav.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: #fff;
  transition: width 0.3s;
}

nav.main-nav a:hover::after,
nav.main-nav a.active::after {
  width: 40%;
}

.banner {
  background: linear-gradient(135deg, var(--primary) 0%, #8b0000 50%, var(--secondary) 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 40%);
}

.banner-content {
  position: relative;
  z-index: 1;
}

.banner h1 {
  font-family: 'ZCOOL XiaoWei', serif;
  font-size: 48px;
  margin-bottom: 16px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.banner p {
  font-size: 18px;
  opacity: 0.95;
  margin-bottom: 24px;
}

.banner-btn {
  display: inline-block;
  background: #fff;
  color: var(--primary);
  padding: 12px 36px;
  border-radius: 28px;
  font-weight: 700;
  font-size: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.banner-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.banner-btn.secondary {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
  margin-left: 12px;
}

.banner-btn.secondary:hover {
  background: #fff;
  color: var(--primary);
}

main {
  flex: 1;
  padding: 32px 0;
}

.section {
  margin-bottom: 40px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--primary);
}

.section-header h2 {
  font-family: 'ZCOOL XiaoWei', serif;
  font-size: 26px;
  color: var(--text-dark);
  position: relative;
  padding-left: 16px;
}

.section-header h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 24px;
  background: var(--primary);
  border-radius: 2px;
}

.section-header .more {
  color: var(--text-muted);
  font-size: 14px;
}

.section-header .more:hover {
  color: var(--primary);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}

.category-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.category-card .icon {
  font-size: 36px;
  margin-bottom: 8px;
}

.category-card h3 {
  font-size: 16px;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.category-card p {
  font-size: 12px;
  color: var(--text-muted);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
}

.video-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.video-poster {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: #f0f0f0;
}

.video-poster img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.video-card:hover .video-poster img {
  transform: scale(1.05);
}

.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 500;
}

.video-tag.blue {
  background: var(--secondary);
}

.video-score {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.7);
  color: #ffd700;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.video-info {
  padding: 12px;
}

.video-info h3 {
  font-size: 15px;
  color: var(--text-dark);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.video-info .meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.video-info .view-count {
  color: var(--primary);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
  background: #fff;
  padding: 16px;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
  margin-right: 8px;
}

.filter-btn {
  padding: 6px 16px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-dark);
  font-family: 'Noto Sans SC', sans-serif;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.quick-entries {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.quick-entry {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 14px;
  transition: transform 0.2s;
}

.quick-entry:hover {
  transform: translateY(-2px);
}

.quick-entry .entry-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.quick-entry:nth-child(1) .entry-icon { background: #ffebee; color: var(--primary); }
.quick-entry:nth-child(2) .entry-icon { background: #e3f2fd; color: var(--secondary); }
.quick-entry:nth-child(3) .entry-icon { background: #fff3e0; color: #f57c00; }
.quick-entry:nth-child(4) .entry-icon { background: #e8f5e9; color: #388e3c; }
.quick-entry:nth-child(5) .entry-icon { background: #f3e5f5; color: #7b1fa2; }
.quick-entry:nth-child(6) .entry-icon { background: #fce4ec; color: #c2185b; }

.quick-entry h4 {
  font-size: 15px;
  margin-bottom: 2px;
}

.quick-entry p {
  font-size: 12px;
  color: var(--text-muted);
}

.nav-map {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.nav-group {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.nav-group h3 {
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #ffebee;
}

.nav-group ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-group a {
  font-size: 14px;
  color: var(--text-dark);
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  transition: color 0.2s;
}

.nav-group a:hover {
  color: var(--primary);
}

.nav-group a .count {
  color: var(--text-muted);
  font-size: 12px;
}

.content-page {
  background: #fff;
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow);
}

.content-page h1 {
  font-family: 'ZCOOL XiaoWei', serif;
  font-size: 32px;
  margin-bottom: 24px;
  color: var(--text-dark);
  border-left: 5px solid var(--primary);
  padding-left: 16px;
}

.content-page h2 {
  font-size: 22px;
  margin: 28px 0 14px;
  color: var(--primary);
}

.content-page p {
  margin-bottom: 16px;
  color: var(--text-dark);
  line-height: 1.8;
}

.content-page .intro-box {
  background: linear-gradient(135deg, #fff5f5 0%, #f5f5ff 100%);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 28px;
  border-left: 4px solid var(--primary);
}

.content-page .feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin: 20px 0;
}

.feature-item {
  background: #fafafa;
  border-radius: 8px;
  padding: 20px;
  border-top: 3px solid var(--secondary);
}

.feature-item h4 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.feature-item p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin: 20px 0;
}

.team-member {
  text-align: center;
  background: #fafafa;
  border-radius: 10px;
  padding: 24px 16px;
}

.team-member .avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  font-family: 'ZCOOL XiaoWei', serif;
}

.team-member h4 {
  font-size: 16px;
  margin-bottom: 4px;
}

.team-member .role {
  font-size: 13px;
  color: var(--primary);
  margin-bottom: 4px;
}

.team-member .desc {
  font-size: 12px;
  color: var(--text-muted);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Noto Sans SC', sans-serif;
  transition: border-color 0.2s;
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.btn-submit {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 12px 36px;
  border-radius: 24px;
  font-size: 15px;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.btn-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.contact-card {
  background: #fafafa;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
}

.contact-card .ci-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 22px;
}

.contact-card h4 {
  font-size: 15px;
  margin-bottom: 6px;
}

.contact-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.copyright-box {
  background: #fff5f5;
  border: 1px dashed var(--primary);
  border-radius: 10px;
  padding: 20px;
  margin-top: 24px;
}

.copyright-box h4 {
  color: var(--primary);
  margin-bottom: 10px;
}

.copyright-box p {
  font-size: 13px;
  color: var(--text-dark);
  line-height: 1.8;
  margin-bottom: 6px;
}

footer {
  background: #1a1a2e;
  color: #ccc;
  padding: 40px 0 0;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  padding-bottom: 32px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  color: #aaa;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.8;
  color: #aaa;
}

.footer-col .social {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.footer-col .social a {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background 0.2s;
}

.footer-col .social a:hover {
  background: var(--primary);
}

.footer-bottom {
  background: #111;
  padding: 16px 0;
  text-align: center;
  font-size: 13px;
  color: #888;
}

.footer-bottom a {
  color: #aaa;
  margin: 0 6px;
}

.footer-bottom a:hover {
  color: #fff;
}

.breadcrumb {
  background: #fff;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb span {
  margin: 0 8px;
  color: #ccc;
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin: 32px 0;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-dark);
  background: #fff;
  transition: all 0.2s;
}

.pagination a:hover,
.pagination .active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

@media (max-width: 768px) {
  .header-main {
    flex-wrap: wrap;
    gap: 12px;
  }

  .logo {
    font-size: 26px;
  }

  .search-box {
    order: 3;
    width: 100%;
    max-width: none;
  }

  nav.main-nav a {
    padding: 10px 16px;
    font-size: 14px;
  }

  .banner {
    padding: 40px 0;
  }

  .banner h1 {
    font-size: 32px;
  }

  .banner p {
    font-size: 15px;
  }

  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
  }

  .category-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
  }

  .category-card {
    padding: 16px 8px;
  }

  .category-card .icon {
    font-size: 28px;
  }

  .content-page {
    padding: 24px 20px;
  }

  .content-page h1 {
    font-size: 24px;
  }

  .section-header h2 {
    font-size: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .banner h1 {
    font-size: 26px;
  }

  .video-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .video-info h3 {
    font-size: 13px;
  }

  .video-info .meta {
    font-size: 11px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .quick-entries {
    grid-template-columns: 1fr 1fr;
  }

  .banner-btn {
    padding: 10px 24px;
    font-size: 14px;
  }
}