/* roulang page: index */
:root {
    --primary: #e63946;
    --primary-dark: #c1121f;
    --secondary: #ffd700;
    --bg-dark: #0b0f17;
    --bg-card: #131a24;
    --bg-soft: #1b2532;
    --text-main: #eef2f7;
    --text-muted: #8b98a9;
    --border: #263041;
    --radius-lg: 18px;
    --radius-md: 12px;
    --shadow-lg: 0 18px 40px rgba(0, 0, 0, .35);
    --shadow-sm: 0 6px 18px rgba(0, 0, 0, .22);
    --transition: .25s ease;
  }
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  img {
    max-width: 100%;
    display: block;
  }
  button,
  input {
    font-family: inherit;
  }
  .container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
  }
  /* Header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 15, 23, .92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
  }
  .header-topbar {
    border-bottom: 1px solid rgba(38, 48, 65, .6);
    padding: 0;
  }
  .header-topbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 62px;
  }
  .brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, #e63946, #c1121f);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
    color: #fff;
    box-shadow: 0 4px 12px rgba(230, 57, 70, .35);
  }
  .logo-text {
    font-size: 21px;
    font-weight: 800;
    letter-spacing: .5px;
    color: #fff;
    white-space: nowrap;
  }
  .logo-text em {
    font-style: normal;
    color: var(--secondary);
  }
  .header-search {
    flex: 1;
    max-width: 360px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 0 6px 0 16px;
    height: 40px;
    transition: border-color .25s;
  }
  .header-search:focus-within {
    border-color: var(--primary);
  }
  .header-search input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 14px;
  }
  .header-search button {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .25s;
  }
  .header-search button:hover {
    background: var(--primary-dark);
  }
  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--secondary), #f0b90b);
    color: #111;
    font-weight: 700;
    font-size: 14px;
    padding: 8px 20px;
    border-radius: 30px;
    transition: transform .25s, box-shadow .25s;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 215, 0, .3);
  }
  .site-nav {
    background: rgba(11, 15, 23, .7);
  }
  .site-nav .container {
    display: flex;
    align-items: center;
    gap: 4px;
    overflow-x: auto;
    min-height: 48px;
    scrollbar-width: none;
  }
  .site-nav .container::-webkit-scrollbar {
    display: none;
  }
  .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: 8px;
    white-space: nowrap;
    transition: all .25s;
    border-bottom: 2px solid transparent;
  }
  .nav-link i {
    font-size: 13px;
  }
  .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, .05);
  }
  .nav-link.active {
    color: #fff;
    background: rgba(230, 57, 70, .12);
    border-bottom-color: var(--primary);
    font-weight: 600;
  }
  .nav-trend {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    padding: 0 6px;
    white-space: nowrap;
  }
  .nav-trend span {
    background: rgba(255, 215, 0, .12);
    color: var(--secondary);
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 12px;
  }
  /* Hero */
  .hero {
    position: relative;
    padding: 110px 0 90px;
    background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  }
  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(11, 15, 23, .96) 30%, rgba(11, 15, 23, .75) 60%, rgba(11, 15, 23, .45));
  }
  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
  }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(230, 57, 70, .18);
    border: 1px solid rgba(230, 57, 70, .4);
    color: #ff8a94;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 16px;
    border-radius: 30px;
    margin-bottom: 22px;
    letter-spacing: .5px;
  }
  .hero h1 {
    font-size: 44px;
    line-height: 1.22;
    font-weight: 900;
    letter-spacing: 1px;
    margin-bottom: 16px;
    color: #fff;
  }
  .hero h1 span {
    color: var(--secondary);
  }
  .hero p {
    font-size: 17px;
    color: rgba(238, 242, 247, .8);
    margin-bottom: 32px;
    max-width: 520px;
  }
  .hero-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
    padding: 13px 30px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all .25s;
  }
  .btn-primary {
    background: linear-gradient(135deg, #e63946, #c1121f);
    color: #fff;
    box-shadow: 0 8px 24px rgba(230, 57, 70, .35);
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(230, 57, 70, .5);
  }
  .btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .35);
    color: #fff;
  }
  .btn-outline:hover {
    background: rgba(255, 255, 255, .1);
    border-color: #fff;
    transform: translateY(-2px);
  }
  .hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    margin-top: 48px;
    padding-top: 36px;
    border-top: 1px solid rgba(255, 255, 255, .14);
  }
  .hero-stats .stat {
    text-align: left;
  }
  .hero-stats .stat-num {
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
  }
  .hero-stats .stat-num i {
    color: var(--secondary);
    font-style: normal;
  }
  .hero-stats .stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
  }
  /* Section */
  .section {
    padding: 80px 0;
  }
  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
  }
  .section-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 14px;
    color: #fff;
  }
  .section-desc {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 640px;
    margin-bottom: 40px;
  }
  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 40px;
  }
  .section-head .section-desc {
    margin-bottom: 0;
  }
  /* Cards */
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all .3s;
    position: relative;
    overflow: hidden;
  }
  .feature-card::after {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(230, 57, 70, .08);
    transition: transform .4s;
  }
  .feature-card:hover {
    border-color: rgba(230, 57, 70, .5);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
  }
  .feature-card:hover::after {
    transform: scale(1.6);
  }
  .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 22px;
    color: #fff;
  }
  .feature-icon.red {
    background: linear-gradient(135deg, #e63946, #c1121f);
  }
  .feature-icon.gold {
    background: linear-gradient(135deg, #ffd700, #f0a500);
    color: #111;
  }
  .feature-icon.blue {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  }
  .feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #fff;
  }
  .feature-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
  }
  /* Category cards */
  .category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
  .category-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 320px;
    display: flex;
    align-items: flex-end;
    border: 1px solid var(--border);
    transition: all .35s;
  }
  .category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(230, 57, 70, .4);
  }
  .category-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s;
  }
  .category-card:hover img {
    transform: scale(1.06);
  }
  .category-card .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(11, 15, 23, .92) 100%);
  }
  .category-card .cat-info {
    position: relative;
    z-index: 2;
    padding: 32px;
    width: 100%;
  }
  .category-card .cat-tag {
    display: inline-block;
    background: rgba(230, 57, 70, .9);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 12px;
    letter-spacing: .5px;
  }
  .category-card h3 {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 6px;
  }
  .category-card p {
    font-size: 14px;
    color: rgba(238, 242, 247, .75);
    margin-bottom: 18px;
  }
  .category-card .cat-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary);
    font-size: 14px;
    font-weight: 600;
    transition: gap .25s;
  }
  .category-card .cat-link:hover {
    gap: 14px;
  }
  /* News list */
  .news-section {
    background: var(--bg-soft);
  }
  .news-list {
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .news-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 18px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    transition: all .25s;
  }
  .news-item:hover {
    border-color: rgba(230, 57, 70, .4);
    transform: translateX(6px);
    box-shadow: var(--shadow-sm);
  }
  .news-tag {
    flex-shrink: 0;
    background: rgba(230, 57, 70, .12);
    color: #ff8a94;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    white-space: nowrap;
  }
  .news-title {
    flex: 1;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-main);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color .2s;
  }
  .news-item:hover .news-title {
    color: #fff;
  }
  .news-desc {
    font-size: 13px;
    color: var(--text-muted);
    flex: 1;
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: none;
  }
  .news-time {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
  }
  @media(min-width:768px) {
    .news-desc {
      display: block;
    }
  }
  .empty-tip {
    padding: 60px 20px;
    text-align: center;
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-muted);
    font-size: 15px;
  }
  /* Steps */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .step-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all .3s;
    position: relative;
  }
  .step-card:hover {
    transform: translateY(-4px);
    border-color: rgba(230, 57, 70, .35);
  }
  .step-num {
    width: 44px;
    height: 44px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e63946, #c1121f);
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 16px rgba(230, 57, 70, .3);
  }
  .step-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
  }
  .step-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
  }
  /* Channel cards */
  .channel-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .channel-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all .3s;
  }
  .channel-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
  }
  .channel-card .img-wrap {
    height: 150px;
    overflow: hidden;
    position: relative;
  }
  .channel-card .img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s;
  }
  .channel-card:hover .img-wrap img {
    transform: scale(1.08);
  }
  .channel-card .channel-body {
    padding: 18px;
  }
  .channel-card .channel-body h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 6px;
    color: #fff;
  }
  .channel-card .channel-body p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
  }
  .channel-card .channel-body .badge-row {
    display: flex;
    gap: 6px;
    margin-top: 10px;
    flex-wrap: wrap;
  }
  .badge-sm {
    font-size: 11px;
    background: rgba(230, 57, 70, .12);
    color: #ff8a94;
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 500;
  }
  /* FAQ */
  .faq-wrap {
    max-width: 860px;
    margin: 0 auto;
  }
  .faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .25s;
  }
  .faq-item:hover {
    border-color: rgba(230, 57, 70, .35);
  }
  .faq-question {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    gap: 16px;
  }
  .faq-question i {
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
    transition: transform .3s;
  }
  .faq-item.open .faq-question i {
    transform: rotate(45deg);
  }
  .faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
  }
  .faq-item.open .faq-answer {
    max-height: 300px;
    padding-bottom: 20px;
  }
  /* CTA */
  .cta-section {
    padding: 70px 0;
    position: relative;
    background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(11, 15, 23, .88);
  }
  .cta-box {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 620px;
    margin: 0 auto;
  }
  .cta-box h2 {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
  }
  .cta-box p {
    font-size: 15px;
    color: rgba(238, 242, 247, .75);
    margin-bottom: 30px;
  }
  /* Footer */
  .site-footer {
    background: #080c12;
    border-top: 1px solid var(--border);
    padding-top: 60px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(38, 48, 65, .6);
  }
  .footer-brand .footer-logo {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    display: block;
    margin-bottom: 14px;
  }
  .footer-brand .footer-logo em {
    font-style: normal;
    color: var(--secondary);
  }
  .footer-brand p {
    font-size: 14px;
    color: var(--text-muted);
    max-width: 320px;
    line-height: 1.8;
  }
  .footer-links h4 {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
  }
  .footer-links a {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
    padding: 6px 0;
    transition: color .25s, padding-left .25s;
  }
  .footer-links a:hover {
    color: var(--secondary);
    padding-left: 6px;
  }
  .footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: var(--text-muted);
  }
  /* Responsive */
  @media(max-width:1024px) {
    .feature-grid {
      grid-template-columns: repeat(3, 1fr);
    }
    .channel-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .steps-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  @media(max-width:768px) {
    .container {
      padding: 0 16px;
    }
    .header-topbar .container {
      min-height: 56px;
    }
    .header-search {
      display: none;
    }
    .hero {
      padding: 70px 0 50px;
    }
    .hero h1 {
      font-size: 30px;
    }
    .hero p {
      font-size: 15px;
    }
    .section {
      padding: 50px 0;
    }
    .section-title {
      font-size: 24px;
    }
    .feature-grid {
      grid-template-columns: 1fr;
    }
    .category-grid {
      grid-template-columns: 1fr;
    }
    .channel-grid {
      grid-template-columns: 1fr;
    }
    .steps-grid {
      grid-template-columns: 1fr;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    .footer-bottom {
      flex-direction: column;
      text-align: center;
    }
    .news-item {
      flex-wrap: wrap;
      gap: 8px;
    }
    .news-title {
      flex: 1 1 100%;
      white-space: normal;
    }
  }
  @media(max-width:520px) {
    .hero-btns .btn {
      width: 100%;
      justify-content: center;
    }
    .hero-stats {
      gap: 20px;
    }
    .channel-grid {
      grid-template-columns: 1fr;
    }
    .step-card {
      padding: 24px 16px;
    }
    .faq-question {
      font-size: 14px;
      padding: 16px;
    }
    .faq-answer {
      padding: 0 16px;
    }
    .footer-links {
      margin-bottom: 10px;
    }
  }
  /* focus accessibility */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
  }

/* roulang page: article */
:root {
  --primary: #e94560;
  --primary-hover: #ff5c76;
  --secondary: #f59e0b;
  --bg-dark: #0b1220;
  --bg-card: #111a2e;
  --bg-card-hover: #16203a;
  --border-dark: #1e293b;
  --text-main: #e2e8f0;
  --text-sub: #94a3b8;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; transition: color .2s; }
img { display: block; max-width: 100%; }
button, input { font-family: inherit; }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 50; }
.header-topbar { background: #0a0f1a; border-bottom: 1px solid var(--border-dark); padding: 12px 0; }
.header-topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.brand-logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, #e94560, #ff6b81);
  display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 800; color: #fff;
  box-shadow: 0 4px 14px rgba(233, 69, 96, 0.4);
}
.logo-text { font-size: 20px; font-weight: 800; color: #fff; letter-spacing: .5px; }
.logo-text em { font-style: normal; color: var(--primary); }
.header-search { display: flex; align-items: center; background: #16203a; border-radius: 30px; padding: 6px 8px 6px 16px; border: 1px solid var(--border-dark); flex: 0 1 420px; transition: border-color .2s; }
.header-search:focus-within { border-color: var(--primary); }
.header-search input { background: transparent; border: none; outline: none; color: #fff; font-size: 14px; width: 100%; }
.header-search button { background: var(--primary); border: none; color: #fff; width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: background .2s; }
.header-search button:hover { background: var(--primary-hover); }
.header-cta { display: inline-flex; align-items: center; gap: 8px; background: rgba(233, 69, 96, 0.15); color: #fff; border: 1px solid rgba(233, 69, 96, 0.4); padding: 8px 18px; border-radius: 30px; font-size: 13px; font-weight: 600; transition: all .2s; }
.header-cta:hover { background: var(--primary); border-color: var(--primary); box-shadow: 0 4px 18px rgba(233, 69, 96, 0.35); }
.site-nav { background: #0d1524; border-bottom: 1px solid var(--border-dark); }
.site-nav .container { display: flex; align-items: center; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.site-nav .container::-webkit-scrollbar { display: none; }
.nav-link { display: inline-flex; align-items: center; gap: 7px; color: var(--text-sub); font-size: 15px; font-weight: 600; padding: 14px 18px; white-space: nowrap; border-bottom: 2px solid transparent; transition: all .2s; }
.nav-link i { font-size: 14px; }
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.04); }
.nav-link.active { color: #fff; border-bottom-color: var(--primary); background: rgba(233, 69, 96, 0.08); }
.nav-trend { margin-left: auto; display: flex; gap: 14px; font-size: 12px; color: var(--text-sub); padding: 0 8px; white-space: nowrap; }
.nav-trend span { cursor: pointer; transition: color .2s; }
.nav-trend span:hover { color: var(--secondary); }

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 72px 0 56px;
  background: linear-gradient(135deg, rgba(11, 18, 32, 0.9), rgba(17, 26, 46, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom: 1px solid var(--border-dark);
}
.article-hero .container { position: relative; z-index: 1; max-width: 1100px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: 14px; color: var(--text-sub); margin-bottom: 28px; }
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb .sep { color: #475569; }
.breadcrumb .current { color: var(--text-main); }
.article-hero h1 { font-size: 38px; font-weight: 800; line-height: 1.3; color: #fff; margin-bottom: 20px; max-width: 850px; letter-spacing: .5px; }
.article-hero .meta-list { display: flex; flex-wrap: wrap; gap: 16px; font-size: 14px; color: var(--text-sub); margin-bottom: 18px; }
.article-hero .meta-list i { margin-right: 6px; color: var(--primary); }
.article-hero .description { font-size: 16px; line-height: 1.8; color: #cbd5e1; max-width: 760px; padding: 16px 20px; border-left: 4px solid var(--primary); background: rgba(11, 18, 32, 0.5); border-radius: 0 12px 12px 0; }

/* ===== Article Main ===== */
.article-main { padding: 48px 0 64px; }
.article-grid { display: grid; grid-template-columns: 1fr; gap: 40px; }
@media (min-width: 1024px) {
  .article-grid { grid-template-columns: 1fr 320px; }
}
.article-content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  box-shadow: var(--shadow-card);
}
.article-content { font-size: 16px; line-height: 1.9; color: #cbd5e1; }
.article-content p { margin-bottom: 22px; }
.article-content h2 { color: #fff; font-size: 24px; font-weight: 700; margin: 36px 0 16px; padding-left: 14px; border-left: 4px solid var(--primary); }
.article-content h3 { color: #f1f5f9; font-size: 20px; font-weight: 600; margin: 28px 0 12px; }
.article-content a { color: var(--secondary); text-decoration: underline; text-underline-offset: 4px; }
.article-content a:hover { color: var(--primary); }
.article-content img { border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow-card); }
.article-content ul, .article-content ol { margin: 0 0 22px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote { border-left: 4px solid var(--secondary); padding: 14px 20px; background: rgba(245, 158, 11, 0.07); border-radius: 0 12px 12px 0; margin: 24px 0; font-style: italic; color: #d6dfea; }
.article-content strong { color: #fff; font-weight: 700; }
.article-content code { background: #1a2333; color: #f59e0b; padding: 2px 8px; border-radius: 6px; font-size: 14px; }
.notfound-box {
  text-align: center; padding: 64px 24px;
}
.notfound-box .icon { font-size: 56px; color: var(--primary); margin-bottom: 20px; }
.notfound-box h2 { font-size: 28px; color: #fff; margin-bottom: 12px; }
.notfound-box p { color: var(--text-sub); margin-bottom: 28px; }
.notfound-box .back-home {
  display: inline-flex; gap: 8px; background: var(--primary); color: #fff; padding: 12px 28px;
  border-radius: 30px; font-weight: 600; transition: all .2s;
}
.notfound-box .back-home:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(233, 69, 96, 0.4); }

/* ===== Sidebar ===== */
.sidebar-card { background: var(--bg-card); border: 1px solid var(--border-dark); border-radius: var(--radius-md); padding: 24px; margin-bottom: 24px; }
.sidebar-card h3 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; padding-bottom: 12px; border-bottom: 1px solid var(--border-dark); display: flex; align-items: center; gap: 8px; }
.sidebar-card h3 i { color: var(--primary); font-size: 14px; }
.sidebar-cat-list li { margin-bottom: 8px; }
.sidebar-cat-list a { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: rgba(255, 255, 255, 0.03); border-radius: 10px; font-size: 14px; color: var(--text-main); border: 1px solid transparent; transition: all .2s; }
.sidebar-cat-list a:hover { border-color: rgba(233, 69, 96, 0.3); background: rgba(233, 69, 96, 0.08); }
.sidebar-cat-list a i { color: var(--primary); font-size: 12px; }
.hot-list a { display: flex; gap: 12px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid rgba(30, 41, 59, 0.6); transition: all .2s; }
.hot-list a:last-child { border-bottom: none; }
.hot-list .num { width: 26px; height: 26px; border-radius: 8px; background: #1a2333; color: var(--text-sub); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: all .2s; }
.hot-list a:hover .num { background: var(--primary); color: #fff; }
.hot-list a:hover { color: #fff; }
.hot-list .txt { font-size: 14px; line-height: 1.5; color: #cbd5e1; }
.hot-list a:hover .txt { color: #fff; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a { font-size: 12px; color: var(--text-sub); padding: 6px 14px; border-radius: 20px; background: #16203a; border: 1px solid var(--border-dark); transition: all .2s; }
.tag-cloud a:hover { background: rgba(233, 69, 96, 0.15); border-color: var(--primary); color: #fff; }

/* ===== Related Section ===== */
.related-section { background: #0d1524; padding: 64px 0; border-top: 1px solid var(--border-dark); border-bottom: 1px solid var(--border-dark); }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 36px; }
.section-head h2 { color: #fff; font-size: 28px; font-weight: 800; display: flex; align-items: center; gap: 12px; }
.section-head h2 i { color: var(--primary); }
.section-head .more { color: var(--text-sub); font-size: 14px; display: flex; align-items: center; gap: 6px; transition: all .2s; }
.section-head .more:hover { color: var(--primary); }
.related-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .related-grid { grid-template-columns: repeat(4, 1fr); } }
.related-card {
  background: var(--bg-card); border: 1px solid var(--border-dark); border-radius: var(--radius-md);
  overflow: hidden; transition: all .3s;
}
.related-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4); border-color: rgba(233, 69, 96, 0.4); }
.related-card .thumb { height: 160px; overflow: hidden; }
.related-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.related-card:hover .thumb img { transform: scale(1.06); }
.related-card .info { padding: 18px; }
.related-card .info h3 { color: #fff; font-size: 15px; font-weight: 600; line-height: 1.5; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 45px; transition: color .2s; }
.related-card:hover .info h3 { color: var(--secondary); }
.related-card .info .tag-status { font-size: 12px; color: var(--text-sub); display: flex; align-items: center; gap: 6px; }
.related-card .info .tag-status i { color: var(--primary); font-size: 10px; }

/* ===== Channel Section ===== */
.channel-section { padding: 64px 0; }
.channel-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 768px) { .channel-grid { grid-template-columns: repeat(2, 1fr); } }
.channel-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden; min-height: 220px;
  display: flex; align-items: flex-end; padding: 28px; border: 1px solid var(--border-dark); transition: all .3s;
}
.channel-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4); }
.channel-card .bg-layer { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .4s; }
.channel-card:hover .bg-layer { transform: scale(1.05); }
.channel-card .overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11, 18, 32, 0.2) 0%, rgba(11, 18, 32, 0.85) 100%); }
.channel-card .content { position: relative; z-index: 1; }
.channel-card .content .tagline { display: inline-block; font-size: 12px; color: #fff; background: rgba(233, 69, 96, 0.8); padding: 4px 14px; border-radius: 20px; margin-bottom: 12px; font-weight: 600; }
.channel-card .content h3 { color: #fff; font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.channel-card .content p { color: #cbd5e1; font-size: 14px; line-height: 1.6; margin-bottom: 16px; }
.channel-card .content .enter-btn { display: inline-flex; align-items: center; gap: 8px; color: #fff; font-size: 14px; font-weight: 600; border: 1px solid rgba(255, 255, 255, 0.3); padding: 8px 20px; border-radius: 30px; transition: all .2s; }
.channel-card .content .enter-btn:hover { background: var(--primary); border-color: var(--primary); }

/* ===== FAQ ===== */
.faq-section { background: #0d1524; padding: 64px 0; border-top: 1px solid var(--border-dark); border-bottom: 1px solid var(--border-dark); }
.faq-grid { display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 900px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border: 1px solid var(--border-dark); border-radius: var(--radius-md);
  padding: 24px 28px; transition: all .2s;
}
.faq-item:hover { border-color: rgba(233, 69, 96, 0.3); }
.faq-item h3 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.faq-item h3 i { color: var(--primary); font-size: 14px; }
.faq-item p { color: var(--text-sub); font-size: 14px; line-height: 1.7; }

/* ===== CTA ===== */
.cta-section {
  position: relative; padding: 80px 0; text-align: center;
  background: linear-gradient(135deg, rgba(11, 18, 32, 0.88), rgba(17, 26, 46, 0.9)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom: 1px solid var(--border-dark);
}
.cta-section h2 { color: #fff; font-size: 32px; font-weight: 800; margin-bottom: 16px; }
.cta-section p { color: #cbd5e1; font-size: 16px; max-width: 600px; margin: 0 auto 30px; }
.cta-btn { display: inline-flex; align-items: center; gap: 10px; background: var(--primary); color: #fff; font-size: 15px; font-weight: 700; padding: 14px 36px; border-radius: 30px; transition: all .2s; }
.cta-btn:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(233, 69, 96, 0.4); }
.cta-btn i { font-size: 14px; }

/* ===== Footer ===== */
.site-footer { background: #0a0f1a; padding: 60px 0 0; border-top: 2px solid rgba(233, 69, 96, 0.15); }
.site-footer .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 40px; margin-bottom: 48px; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer-brand p { font-size: 14px; color: var(--text-sub); line-height: 1.8; max-width: 360px; }
.footer-logo { display: inline-block; font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.footer-logo em { font-style: normal; color: var(--primary); }
.footer-links h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-links h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--primary); }
.footer-links a { display: block; color: var(--text-sub); font-size: 14px; padding: 6px 0; transition: all .2s; }
.footer-links a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom { border-top: 1px solid var(--border-dark); padding: 22px 0; display: flex; flex-direction: column; gap: 6px; justify-content: space-between; align-items: center; font-size: 13px; color: #64748b; }
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-hero h1 { font-size: 30px; }
  .article-content-card { padding: 28px; }
  .nav-trend { display: none; }
}
@media (max-width: 768px) {
  .header-search { display: none; }
  .article-hero { padding: 48px 0 40px; }
  .article-hero h1 { font-size: 26px; }
  .article-content-card { padding: 20px 18px; }
  .related-grid { grid-template-columns: 1fr; }
  .channel-card { min-height: 180px; }
  .section-head h2 { font-size: 22px; }
  .cta-section h2 { font-size: 26px; }
  .footer-grid { gap: 28px; }
  .article-hero .description { font-size: 14px; }
  .article-content { font-size: 15px; }
}
@media (max-width: 520px) {
  .brand-logo .logo-text { font-size: 17px; }
  .header-topbar .container { padding: 0 16px; }
  .site-nav .container { padding: 0 12px; }
  .nav-link { padding: 12px 14px; font-size: 14px; }
  .article-hero h1 { font-size: 22px; }
  .article-content-card { padding: 16px; }
  .article-hero .meta-list { gap: 10px; font-size: 13px; }
}

/* roulang page: category1 */
:root {
  --bg: #080c16;
  --bg-soft: #0b101d;
  --bg-card: #141c2f;
  --primary: #e11d48;
  --primary-2: #be123c;
  --accent: #f59e0b;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --glow: 0 8px 26px rgba(225, 29, 72, 0.35);
  --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s, opacity .3s; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input { font-family: inherit; }
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 28px; }

/* ===== Header / 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 12, 22, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
}
.header-topbar { padding: 12px 0; }
.header-topbar .container { display: flex; align-items: center; gap: 20px; }
.brand-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; font-weight: 900; font-size: 22px;
  box-shadow: var(--glow);
}
.logo-text { font-size: 22px; font-weight: 900; color: #fff; letter-spacing: 1px; white-space: nowrap; }
.logo-text em { font-style: normal; color: var(--accent); }
.header-search {
  flex: 1; max-width: 420px; display: flex; align-items: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 6px 4px 20px;
  transition: border-color .3s, box-shadow .3s;
}
.header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.18); }
.header-search input {
  flex: 1; min-width: 0; background: transparent; border: none; outline: none;
  color: #fff; font-size: 14px;
}
.header-search input::placeholder { color: #64748b; }
.header-search button {
  width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; display: flex; align-items: center; justify-content: center;
  transition: transform .3s;
}
.header-search button:hover { transform: scale(1.08); }
.header-cta {
  display: inline-flex; align-items: center; gap: 8px; margin-left: auto;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; padding: 10px 20px; border-radius: 999px;
  font-size: 14px; font-weight: 600; white-space: nowrap;
  box-shadow: var(--glow);
  transition: transform .3s, box-shadow .3s;
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(225, 29, 72, 0.5); }
.site-nav { border-top: 1px solid rgba(255, 255, 255, 0.05); }
.site-nav .container { display: flex; align-items: center; gap: 6px; overflow-x: auto; scrollbar-width: none; }
.site-nav .container::-webkit-scrollbar { display: none; }
.nav-link {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 18px; color: #94a3b8;
  font-size: 15px; font-weight: 600; white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .3s, border-color .3s, background .3s;
}
.nav-link i { font-size: 14px; transition: transform .3s; }
.nav-link:hover { color: #fff; }
.nav-link:hover i { transform: translateY(-2px); }
.nav-link.active {
  color: #fff; border-color: var(--primary);
  background: linear-gradient(0deg, rgba(225, 29, 72, 0.12), transparent);
}
.nav-trend {
  margin-left: auto; display: flex; align-items: center; gap: 8px;
  white-space: nowrap; font-size: 13px; color: #64748b;
}
.nav-trend span {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  padding: 4px 12px; border-radius: 999px;
  transition: background .3s, color .3s, border-color .3s;
}
.nav-trend span:hover { color: #fff; background: rgba(225, 29, 72, 0.18); border-color: rgba(225, 29, 72, 0.4); }

/* ===== Hero ===== */
.page-hero {
  position: relative; padding: 100px 0 90px;
  background-size: cover; background-position: center;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(8, 12, 22, 0.92), rgba(8, 12, 22, 0.62) 55%, rgba(8, 12, 22, 0.42));
}
.hero-inner { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #64748b; margin-bottom: 22px; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 10px; color: #475569; }
.breadcrumb span { color: var(--accent); font-weight: 600; }
.page-hero h1 {
  font-size: clamp(38px, 6vw, 64px); font-weight: 900;
  color: #fff; letter-spacing: 2px; margin: 0 0 16px; line-height: 1.15;
}
.page-hero h1::after {
  content: "NEWS";
  display: block; font-size: 14px; font-weight: 800;
  color: var(--primary); letter-spacing: 6px; margin-top: 12px;
}
.hero-sub { font-size: 18px; color: #a5b4cf; max-width: 660px; margin: 0 0 28px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 28px; }
.hero-meta span {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border);
  padding: 8px 16px; border-radius: 999px;
  font-size: 14px; color: #e2e8f0;
  backdrop-filter: blur(6px);
}
.hero-meta i { color: var(--accent); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags a {
  font-size: 13px; color: #94a3b8;
  border: 1px solid var(--border);
  padding: 5px 14px; border-radius: 999px;
  transition: all .3s;
}
.hero-tags a:hover { color: #fff; border-color: var(--primary); background: rgba(225, 29, 72, 0.16); }

/* ===== Section ===== */
.section { padding: 84px 0; }
.section.bg-soft { background: rgba(255, 255, 255, 0.02); border-top: 1px solid rgba(255, 255, 255, 0.04); border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 38px; }
.section-head.center { flex-direction: column; align-items: center; text-align: center; }
.section-eyebrow { display: block; font-size: 12px; font-weight: 800; letter-spacing: 4px; color: var(--primary); margin-bottom: 8px; }
.section-head h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; color: #fff; margin: 0; }
.section-desc { color: var(--text-muted); font-size: 15px; max-width: 560px; margin: 0; }
.section-more { display: inline-flex; align-items: center; gap: 8px; color: #94a3b8; font-size: 14px; font-weight: 600; transition: color .3s, gap .3s; }
.section-more:hover { color: var(--primary); gap: 14px; }

/* ===== Featured ===== */
.featured-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 22px; }
.featured-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  min-height: 280px; background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.featured-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(225, 29, 72, 0.35); }
.featured-card > img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; transition: transform .6s ease; }
.featured-card:hover > img { transform: scale(1.05); }
.featured-overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(0deg, rgba(8, 12, 22, 0.96) 0%, rgba(8, 12, 22, 0.55) 50%, rgba(8, 12, 22, 0.08) 100%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 26px;
}
.featured-main { min-height: 420px; grid-row: span 2; }
.featured-overlay .badge { align-self: flex-start; }
.featured-overlay h3 { font-size: 20px; line-height: 1.45; color: #fff; font-weight: 700; margin: 12px 0 8px; }
.featured-main h3 { font-size: 26px; }
.featured-overlay p { color: #a5b4cf; font-size: 14px; line-height: 1.7; max-width: 620px; margin: 0; }
.read-more { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--primary); margin-top: 12px; }
.read-more i { transition: transform .3s; }
.featured-card:hover .read-more i { transform: translateX(4px); }
.featured-side { display: flex; flex-direction: column; gap: 22px; }
.featured-side .featured-card { flex: 1; min-height: 0; }
.badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; font-size: 12px; font-weight: 700;
  padding: 5px 12px; border-radius: 999px; letter-spacing: 1px;
}
.badge.accent { background: linear-gradient(135deg, #f59e0b, #d97706); }

/* ===== Channel ===== */
.channel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.channel-card {
  position: relative; overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px; display: flex; gap: 18px; align-items: flex-start;
  transition: all .35s;
}
.channel-card::after {
  content: ""; position: absolute; width: 120px; height: 120px; border-radius: 50%;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.2), transparent 70%);
  right: -30px; top: -30px; transition: transform .4s;
}
.channel-card:hover { background: rgba(225, 29, 72, 0.06); border-color: rgba(225, 29, 72, 0.35); transform: translateY(-4px); box-shadow: var(--shadow); }
.channel-card:hover::after { transform: scale(1.5); }
.channel-icon {
  width: 52px; height: 52px; border-radius: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; box-shadow: var(--glow);
}
.channel-icon.alt { background: linear-gradient(135deg, #3b82f6, #8b5cf6); box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3); }
.channel-icon.gold { background: linear-gradient(135deg, #f59e0b, #d97706); box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3); }
.channel-card h3 { font-size: 18px; font-weight: 700; color: #fff; margin: 0 0 6px; }
.channel-card p { font-size: 14px; color: var(--text-muted); line-height: 1.65; margin: 0; }
.tag-row { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.mini-tag { font-size: 12px; color: #94a3b8; background: rgba(255, 255, 255, 0.06); padding: 3px 10px; border-radius: 999px; }

/* ===== News layout ===== */
.news-layout { display: grid; grid-template-columns: 1fr 360px; gap: 40px; }
.news-list { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.news-item {
  display: flex; overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 18px;
  transition: all .35s;
}
.news-item:hover { border-color: rgba(225, 29, 72, 0.32); transform: translateX(6px); background: rgba(255, 255, 255, 0.05); }
.news-thumb { width: 260px; min-height: 170px; flex-shrink: 0; position: relative; overflow: hidden; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-item:hover .news-thumb img { transform: scale(1.06); }
.news-body { padding: 22px 24px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.item-top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.news-body h3 { font-size: 18px; font-weight: 700; color: #fff; line-height: 1.5; margin: 0; transition: color .3s; }
.news-body h3:hover { color: var(--primary); }
.news-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; gap: 16px; font-size: 13px; color: #64748b; margin-top: auto; }
.news-meta i { color: var(--primary); margin-right: 4px; }

/* ===== Side ===== */
.news-side { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.rank-card { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.rank-card h3 { font-size: 20px; font-weight: 800; color: #fff; display: flex; align-items: center; gap: 10px; margin: 0 0 20px; }
.rank-card h3 i { color: var(--accent); }
.rank-list { list-style: none; margin: 0; padding: 0; counter-reset: rank; }
.rank-list li {
  counter-increment: rank;
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 8px; border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
  border-radius: 10px; transition: background .3s;
}
.rank-list li:last-child { border-bottom: none; }
.rank-list li::before {
  content: counter(rank, decimal-leading-zero);
  font-weight: 900; font-size: 24px; line-height: 1;
  font-style: italic;
  color: transparent;
  -webkit-text-stroke: 1px var(--primary);
  flex-shrink: 0;
}
.rank-list li:nth-child(1)::before { -webkit-text-stroke: 1px #f59e0b; color: rgba(245, 158, 11, 0.35); }
.rank-list li:nth-child(2)::before { -webkit-text-stroke: 1px #f59e0b; color: rgba(245, 158, 11, 0.2); }
.rank-list li:nth-child(3)::before { -webkit-text-stroke: 1px #f59e0b; color: rgba(245, 158, 11, 0.12); }
.rank-list li:hover { background: rgba(225, 29, 72, 0.06); }
.rank-list .rank-title { font-size: 15px; color: #cbd5e1; line-height: 1.5; font-weight: 600; }
.rank-list li:hover .rank-title { color: var(--primary); }
.rank-list .rank-hot { display: block; font-size: 12px; color: #64748b; margin-top: 3px; }
.side-card { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); min-height: 230px; display: block; }
.side-card img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; transition: transform .5s; }
.side-card:hover img { transform: scale(1.05); }
.side-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(8, 12, 22, 0.95), transparent 60%);
  display: flex; align-items: flex-end; padding: 24px;
}
.side-overlay h3 { color: #fff; font-size: 16px; line-height: 1.5; font-weight: 700; margin: 0; }
.side-overlay .go-arrow { margin-top: 8px; color: var(--primary); font-size: 13px; font-weight: 700; }

/* ===== Stats ===== */
.stats-band { position: relative; padding: 70px 0; background-size: cover; background-position: center; }
.stats-band::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(8, 12, 22, 0.5), rgba(8, 12, 22, 0.9));
}
.stats-grid { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card {
  text-align: center; padding: 30px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  transition: all .35s;
}
.stat-card:hover { transform: translateY(-6px); border-color: rgba(225, 29, 72, 0.45); box-shadow: var(--shadow); }
.stat-card .num { font-size: 42px; font-weight: 900; color: #fff; line-height: 1.2; }
.stat-card .num em { font-style: normal; color: var(--primary); }
.stat-card .label { color: #94a3b8; font-size: 14px; margin-top: 8px; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: border-color .3s, background .3s; }
.faq-item[open] { border-color: rgba(225, 29, 72, 0.35); background: rgba(255, 255, 255, 0.045); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; font-size: 16px; font-weight: 600; color: #e2e8f0; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { transition: transform .3s; color: var(--primary); font-size: 14px; flex-shrink: 0; }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item .answer { padding: 0 24px 22px; color: #94a3b8; font-size: 14px; line-height: 1.8; margin: 0; }

/* ===== CTA ===== */
.cta-section {
  padding: 90px 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(225, 29, 72, 0.22), transparent 55%),
              radial-gradient(ellipse at 80% 90%, rgba(245, 158, 11, 0.12), transparent 45%);
}
.cta-inner { text-align: center; max-width: 720px; margin: 0 auto; }
.cta-inner h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 900; color: #fff; line-height: 1.3; margin: 0; }
.cta-inner p { color: #94a3b8; margin: 14px 0 0; font-size: 16px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; margin-top: 30px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 30px; border-radius: 999px; font-size: 15px; font-weight: 700; transition: all .35s; }
.btn.primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; box-shadow: var(--glow); }
.btn.primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(225, 29, 72, 0.5); }
.btn.ghost { background: rgba(255, 255, 255, 0.08); color: #e2e8f0; border: 1px solid rgba(255, 255, 255, 0.14); backdrop-filter: blur(6px); }
.btn.ghost:hover { background: rgba(255, 255, 255, 0.15); border-color: rgba(255, 255, 255, 0.3); transform: translateY(-3px); }

/* ===== Footer ===== */
.site-footer { background: #070a13; border-top: 1px solid rgba(255, 255, 255, 0.05); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.footer-logo { font-size: 22px; font-weight: 900; color: #fff; }
.footer-logo em { font-style: normal; color: var(--accent); }
.footer-brand p { color: #64748b; font-size: 14px; margin: 14px 0 0; line-height: 1.8; max-width: 420px; }
.footer-links h4 { color: #fff; font-size: 16px; font-weight: 700; margin: 0 0 16px; }
.footer-links a { display: block; color: #64748b; font-size: 14px; padding: 6px 0; transition: color .3s, padding-left .3s; }
.footer-links a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; gap: 16px; flex-wrap: wrap; }
.footer-bottom p { color: #475569; font-size: 13px; margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: 1fr; }
  .featured-main { grid-row: auto; min-height: 340px; }
  .news-layout { grid-template-columns: 1fr; }
  .news-side { display: grid; grid-template-columns: 1fr 1fr; }
  .channel-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .header-search { max-width: 280px; }
  .page-hero { padding: 76px 0 70px; }
}
@media (max-width: 768px) {
  .header-topbar .container { flex-wrap: wrap; }
  .header-search { order: 3; flex-basis: 100%; max-width: none; }
  .header-cta { display: none !important; }
  .nav-trend { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .news-side { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .news-item { flex-direction: column; }
  .news-thumb { width: 100%; min-height: 200px; }
  .news-body { padding: 18px 20px; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .hero-meta span { padding: 6px 12px; font-size: 13px; }
  .page-hero h1 { letter-spacing: 1px; }
}
@media (max-width: 520px) {
  .channel-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .logo-text { font-size: 18px; }
  .logo-mark { width: 34px; height: 34px; font-size: 18px; }
  .stat-card .num { font-size: 32px; }
  .featured-overlay { padding: 18px; }
  .featured-main h3 { font-size: 21px; }
  .featured-overlay h3 { font-size: 17px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-section { padding: 60px 0; }
  .faq-item summary { font-size: 15px; padding: 16px 18px; }
  .faq-item .answer { padding: 0 18px 18px; }
}

/* roulang page: category2 */
:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --accent: #06b6d4;
  --accent-hover: #0891b2;
  --bg-dark: #0b1022;
  --bg-card: rgba(255,255,255,0.05);
  --bg-card-solid: #111a30;
  --border-color: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.16);
  --text-main: #f1f5f9;
  --text-sub: #94a3b8;
  --text-muted: #64748b;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover: 0 18px 50px rgba(0,0,0,0.5);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background-color:var(--bg-dark);
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,16,34,0.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border-color);
}
.header-topbar{border-bottom:1px solid var(--border-color)}
.header-topbar .container{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:24px;
}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;
  font-weight:800;color:#fff;font-size:18px;
  box-shadow:0 4px 12px rgba(37,99,235,0.4);
}
.logo-text{font-size:20px;font-weight:700;color:#fff;letter-spacing:.5px}
.logo-text em{font-style:normal;color:var(--accent)}
.header-search{
  flex:0 1 340px;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,0.06);
  border-radius:999px;padding:0 16px;height:38px;
  border:1px solid transparent;
  transition:var(--transition);
}
.header-search:focus-within{
  border-color:var(--primary);
  background:rgba(255,255,255,0.08);
}
.header-search input{
  flex:1;background:transparent;border:0;outline:0;
  color:#fff;font-size:14px;min-width:0;
}
.header-search input::placeholder{color:var(--text-muted)}
.header-search button{color:var(--accent);font-size:15px;transition:color .2s}
.header-search button:hover{color:#fff}
.header-cta{
  display:inline-flex;align-items:center;gap:6px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  padding:8px 16px;border-radius:999px;
  font-size:13px;font-weight:600;color:#fff;
  transition:transform var(--transition),box-shadow var(--transition);
  white-space:nowrap;
}
.header-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(37,99,235,0.45);
}
.site-nav{border-bottom:1px solid var(--border-color)}
.site-nav .container{
  display:flex;align-items:center;gap:28px;height:48px;
}
.nav-link{
  display:flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--text-sub);
  position:relative;padding:4px 2px;white-space:nowrap;
  transition:color var(--transition);
}
.nav-link:hover{color:#fff}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:'';position:absolute;bottom:-2px;left:0;right:0;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.nav-trend{
  margin-left:auto;display:flex;gap:10px;
  font-size:12px;color:var(--text-sub);
}
.nav-trend span{
  background:rgba(255,255,255,0.05);
  padding:2px 12px;border-radius:999px;
  border:1px solid var(--border-color);
  transition:var(--transition);
}
.nav-trend span:hover{
  color:#fff;border-color:var(--border-hover);
  background:rgba(255,255,255,0.09);
}

/* ===== Hero ===== */
.category-hero{
  position:relative;
  padding:90px 0 70px;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.category-hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,16,34,0.95) 0%,rgba(11,16,34,0.82) 60%,rgba(37,99,235,0.35) 100%);
}
.category-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-sub);margin-bottom:32px;
}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb i{color:var(--text-muted);font-size:10px}
.breadcrumb span{color:var(--text-main)}
.hero-grid{
  display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(37,99,235,0.2);
  border:1px solid rgba(37,99,235,0.35);
  color:#93c5fd;border-radius:999px;
  padding:6px 16px;font-size:13px;font-weight:500;
  margin-bottom:20px;
}
.hero-content h1{
  font-size:52px;line-height:1.18;font-weight:800;
  letter-spacing:-0.5px;margin-bottom:20px;
}
.hero-content h1 span{color:var(--accent)}
.hero-content p{
  font-size:16px;color:var(--text-sub);
  max-width:520px;margin-bottom:32px;
}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-size:14px;font-weight:600;
  transition:transform var(--transition),box-shadow var(--transition),background var(--transition);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 10px 30px rgba(37,99,235,0.45);
}
.btn-ghost{
  border:1px solid var(--border-hover);
  color:var(--text-main);background:rgba(255,255,255,0.04);
}
.btn-ghost:hover{
  background:rgba(255,255,255,0.1);
  border-color:var(--accent);
  transform:translateY(-3px);
}
.btn-primary:focus-visible,.btn-ghost:focus-visible{
  outline:2px solid var(--accent);outline-offset:3px;
}
.hero-stats{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
}
.stat-card{
  background:rgba(255,255,255,0.07);
  border:1px solid var(--border-color);
  backdrop-filter:blur(6px);
  border-radius:var(--radius);
  padding:24px 20px;text-align:center;
  transition:var(--transition);
}
.stat-card:nth-child(3){grid-column:span 2}
.stat-card:hover{
  background:rgba(255,255,255,0.1);
  transform:translateY(-4px);
}
.stat-num{
  font-size:36px;font-weight:800;
  background:linear-gradient(135deg,#fff,var(--accent));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  line-height:1.2;
}
.stat-label{font-size:13px;color:var(--text-sub);margin-top:8px}

/* ===== Section Common ===== */
.section{padding:80px 0}
.section-light{background:rgba(255,255,255,0.02)}
.section-head{
  text-align:center;max-width:680px;margin:0 auto 48px;
}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(37,99,235,0.15);
  border:1px solid rgba(37,99,235,0.3);
  color:#93c5fd;
  border-radius:999px;padding:5px 16px;
  font-size:13px;font-weight:500;margin-bottom:14px;
}
.section-head h2{
  font-size:34px;font-weight:800;
  line-height:1.25;margin-bottom:12px;
  letter-spacing:-0.3px;
}
.section-head p{color:var(--text-sub);font-size:15px}

/* ===== Features ===== */
.feature-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.feature-card{
  background:var(--bg-card-solid);
  border:1px solid var(--border-color);
  border-radius:var(--radius);
  padding:32px 26px;
  transition:var(--transition);
}
.feature-card:hover{
  transform:translateY(-6px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow);
}
.feature-icon{
  width:52px;height:52px;border-radius:14px;
  background:linear-gradient(135deg,rgba(37,99,235,0.2),rgba(6,182,212,0.2));
  display:flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--accent);
  margin-bottom:18px;
}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-sub)}

/* ===== Platforms ===== */
.section-platforms{position:relative}
.platform-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;
}
.platform-intro h2{font-size:34px;font-weight:800;margin-bottom:14px}
.platform-intro > p{color:var(--text-sub);font-size:15px;margin-bottom:24px}
.platform-list{
  list-style:none;margin-bottom:28px;
}
.platform-list li{
  display:flex;align-items:center;gap:10px;
  padding:8px 0;font-size:15px;color:var(--text-main);
}
.platform-list li i{color:var(--accent)}
.platform-cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
.platform-card{
  background:var(--bg-card-solid);
  border:1px solid var(--border-color);
  border-radius:var(--radius);
  padding:28px 18px;text-align:center;
  transition:var(--transition);
}
.platform-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow);
  border-color:rgba(37,99,235,0.5);
}
.platform-card i{
  font-size:32px;margin-bottom:14px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.platform-card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.platform-card p{font-size:13px;color:var(--text-sub)}

/* ===== Guides ===== */
.guide-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.guide-card{
  background:var(--bg-card-solid);
  border:1px solid var(--border-color);
  border-radius:var(--radius);
  overflow:hidden;
  transition:var(--transition);
  display:block;
}
.guide-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-hover);
  border-color:var(--border-hover);
}
.guide-cover{
  position:relative;overflow:hidden;aspect-ratio:3/2;
}
.guide-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 0.5s ease;
}
.guide-card:hover .guide-cover img{
  transform:scale(1.05);
}
.guide-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(11,16,34,0.5));
}
.guide-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(11,16,34,0.75);
  backdrop-filter:blur(4px);
  color:#fff;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;
  display:flex;align-items:center;gap:6px;
  border:1px solid rgba(255,255,255,0.15);
}
.guide-body{padding:20px}
.guide-body h3{font-size:17px;font-weight:700;margin-bottom:8px}
.guide-body p{font-size:13px;color:var(--text-sub);margin-bottom:14px;line-height:1.6}
.guide-link{
  font-size:13px;font-weight:600;color:var(--accent);
  display:inline-flex;align-items:center;gap:6px;
  transition:gap var(--transition);
}
.guide-card:hover .guide-link{gap:10px}

/* ===== Steps ===== */
.section-steps{
  background:linear-gradient(180deg,var(--bg-dark) 0%,rgba(37,99,235,0.08) 100%);
}
.steps-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;
}
.steps-grid::before{
  content:'';position:absolute;top:36px;left:10%;right:10%;
  height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent),transparent);
  opacity:0.3;
}
.step-item{
  position:relative;text-align:center;
  padding:0 10px;
}
.step-num{
  width:72px;height:72px;border-radius:50%;
  background:var(--bg-card-solid);
  border:2px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:800;color:var(--accent);
  margin:0 auto 20px;
  position:relative;z-index:1;
  transition:var(--transition);
}
.step-item:hover .step-num{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;
  box-shadow:0 8px 24px rgba(37,99,235,0.4);
}
.step-item h3{font-size:17px;font-weight:700;margin-bottom:10px}
.step-item p{font-size:14px;color:var(--text-sub)}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-list{
  display:flex;flex-direction:column;gap:14px;
}
.faq-item{
  background:var(--bg-card-solid);
  border:1px solid var(--border-color);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:border-color var(--transition);
}
.faq-item.open{border-color:rgba(37,99,235,0.5)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px;font-size:15px;font-weight:600;color:var(--text-main);
  text-align:left;
}
.faq-question i{
  transition:transform var(--transition);
  color:var(--text-muted);
  font-size:13px;flex-shrink:0;
}
.faq-item.open .faq-question i{
  transform:rotate(180deg);
  color:var(--accent);
}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height 0.35s ease;
  padding:0 22px;
}
.faq-answer p{
  padding-bottom:18px;font-size:14px;color:var(--text-sub);line-height:1.8;
}

/* ===== CTA ===== */
.section-cta{padding:80px 0 100px}
.cta-box{
  position:relative;
  background:linear-gradient(135deg,rgba(37,99,235,0.2),rgba(6,182,212,0.15));
  border:1px solid rgba(37,99,235,0.3);
  border-radius:var(--radius-lg);
  padding:60px 40px;text-align:center;
  overflow:hidden;
}
.cta-box::before{
  content:'';position:absolute;top:-40%;right:-10%;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(37,99,235,0.25),transparent 70%);
}
.cta-box h2{font-size:30px;font-weight:800;margin-bottom:14px}
.cta-box p{color:var(--text-sub);margin-bottom:28px;font-size:15px}
.cta-box .btn-primary{position:relative;z-index:1;font-size:15px;padding:14px 28px}

/* ===== Footer ===== */
.site-footer{
  background:#070b16;
  border-top:1px solid var(--border-color);
  padding:60px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;
  padding-bottom:40px;
}
.footer-logo{
  font-size:22px;font-weight:800;color:#fff;
  display:inline-block;margin-bottom:14px;
}
.footer-logo em{
  font-style:normal;color:var(--accent);
}
.footer-brand p{
  font-size:14px;color:var(--text-sub);line-height:1.8;
  max-width:340px;
}
.footer-links h4{
  font-size:16px;font-weight:700;color:#fff;
  margin-bottom:16px;position:relative;
  padding-bottom:10px;
}
.footer-links h4::after{
  content:'';position:absolute;bottom:0;left:0;
  width:24px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.footer-links a{
  display:block;font-size:14px;color:var(--text-sub);
  padding:5px 0;transition:var(--transition);
}
.footer-links a:hover{color:var(--accent);transform:translateX(4px)}
.footer-bottom{
  border-top:1px solid var(--border-color);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-muted)}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .guide-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px}
  .steps-grid::before{display:none}
  .platform-cards{grid-template-columns:repeat(3,1fr)}
  .platform-wrap{grid-template-columns:1fr;gap:40px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  .stat-card:nth-child(3){grid-column:auto}
}
@media (max-width:768px){
  .header-topbar .container{height:auto;flex-wrap:wrap;padding:12px 24px;gap:10px}
  .header-search{flex-basis:100%;order:3}
  .header-cta{display:none}
  .site-nav .container{overflow-x:auto;gap:20px}
  .nav-trend{display:none}
  .section{padding:60px 0}
  .hero-content h1{font-size:38px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-box{padding:40px 24px}
  .cta-box h2{font-size:24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .feature-grid{grid-template-columns:1fr}
  .guide-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .platform-cards{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .stat-card:nth-child(3){grid-column:span 2}
  .hero-content h1{font-size:30px}
  .hero-btns{flex-direction:column}
  .btn-primary,.btn-ghost{justify-content:center}
  .breadcrumb{font-size:12px}
}