/* roulang page: index */
:root {
    --bg-base: #0D0E10;
    --bg-surface: #16181C;
    --bg-elevated: #1D2127;
    --border-subtle: #272B31;
    --text-primary: #F1EFEA;
    --text-secondary: #A3A9B4;
    --text-muted: #6B7280;
    --accent-primary: #E8842A;
    --accent-hover: #F59E4C;
    --accent-soft: rgba(232, 132, 42, 0.12);
    --teal-pop: #2A9D8F;
  }
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.75;
    font-size: 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }
  a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-color 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94), background 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  a:hover {
    color: var(--accent-primary);
  }
  img {
    max-width: 100%;
    display: block;
  }
  button,
  input {
    font-family: inherit;
    font-size: inherit;
    border: none;
    background: none;
    color: inherit;
  }
  button {
    cursor: pointer;
  }
  a:focus-visible,
  button:focus-visible,
  input:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-radius: 4px;
  }
  ::selection {
    background: var(--accent-soft);
    color: var(--accent-hover);
  }
  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }
  ::-webkit-scrollbar-track {
    background: transparent;
  }
  ::-webkit-scrollbar-thumb {
    background: var(--bg-elevated);
    border-radius: 999px;
  }
  * {
    scrollbar-width: thin;
    scrollbar-color: var(--bg-elevated) transparent;
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    height: 100vh;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.25s ease-out;
  }
  .sidebar-logo {
    height: 56px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
  }
  .logo-dot {
    width: 10px;
    height: 10px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
  }
  .logo-dot-small {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
  }
  .logo-text {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    white-space: nowrap;
  }
  .sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 44px;
    padding: 0 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background 0.15s ease, color 0.15s ease;
    position: relative;
  }
  .nav-item:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
  }
  .nav-item.active {
    background: var(--bg-elevated);
    color: var(--accent-primary);
  }
  .nav-item.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--accent-primary);
    border-radius: 0 4px 4px 0;
  }
  .nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
  }
  .sidebar-version {
    padding: 16px 24px;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-subtle);
  }
  .main-wrapper {
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  .main-content {
    flex: 1;
  }
  .container-page {
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }
  .mobile-header {
    display: none;
    height: 56px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 90;
  }
  .mobile-header .burger-btn {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .mobile-header .burger-btn:hover {
    background: var(--bg-elevated);
  }
  .mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 95;
    opacity: 0;
    transition: opacity 0.2s ease;
  }
  .mobile-overlay.show {
    opacity: 1;
  }
  .hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    overflow: hidden;
  }
  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(13, 14, 16, 0.92) 0%, rgba(13, 14, 16, 0.75) 50%, rgba(13, 14, 16, 0.55) 100%);
    z-index: 1;
  }
  .hero-content {
    position: relative;
    z-index: 2;
    padding: 80px 7%;
    max-width: 700px;
  }
  .hero-badge {
    display: inline-block;
    background: var(--accent-soft);
    color: var(--accent-primary);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    margin-bottom: 24px;
    opacity: 0;
    animation: heroIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  }
  .hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin: 0 0 20px 0;
    color: var(--text-primary);
    opacity: 0;
    animation: heroIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.1s forwards;
  }
  .hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 0 36px 0;
    line-height: 1.7;
    opacity: 0;
    animation: heroIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s forwards;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    opacity: 0;
    animation: heroIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s forwards;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    color: #131416;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: 8px;
    border: none;
    font-size: 0.95rem;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
  }
  .btn-primary:hover {
    background: var(--accent-hover);
    color: #131416;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(232, 132, 42, 0.25);
  }
  .btn-primary:active {
    transform: scale(0.98);
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-weight: 500;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.2s, color 0.2s, background 0.2s, transform 0.2s;
    white-space: nowrap;
  }
  .btn-ghost:hover {
    border-color: rgba(232, 132, 42, 0.6);
    color: var(--accent-primary);
    background: var(--accent-soft);
  }
  .btn-ghost:active {
    transform: scale(0.98);
  }
  @keyframes heroIn {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  .stats-bar {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    min-height: 80px;
  }
  .stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 20px 16px;
    text-align: center;
    position: relative;
  }
  .stat-item+.stat-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 40px;
    width: 1px;
    background: var(--border-subtle);
  }
  .stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1.2;
  }
  .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
  }
  .section-block {
    padding: 96px 0;
  }
  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 16px;
  }
  .section-tag::before {
    content: "";
    width: 12px;
    height: 3px;
    background: var(--accent-primary);
    border-radius: 2px;
  }
  .section-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.25;
    margin: 0 0 12px 0;
  }
  .section-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 620px;
  }
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .about-text p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin: 0 0 16px 0;
  }
  .feature-list {
    list-style: none;
    margin: 28px 0 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .feature-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
  }
  .feature-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
  }
  .feature-icon::after {
    content: "";
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: block;
  }
  .feature-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px 0;
  }
  .feature-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
  }
  .about-image-wrap {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
  }
  .about-image-wrap img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: 12px;
  }
  .about-quote {
    margin-top: 20px;
    padding: 12px 20px;
    border-left: 2px solid var(--accent-primary);
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    background: var(--accent-soft);
    border-radius: 0 8px 8px 0;
  }
  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 40px;
    gap: 20px;
    flex-wrap: wrap;
  }
  .view-all {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s;
    white-space: nowrap;
  }
  .view-all:hover {
    color: var(--accent-primary);
  }
  .cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .game-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-color 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
  }
  .game-card:hover {
    transform: translateY(-4px);
    border-color: rgba(232, 132, 42, 0.4);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  }
  .card-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--bg-elevated);
  }
  .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
  }
  .game-card:hover .card-image img {
    transform: scale(1.03);
  }
  .card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(13, 14, 16, 0.75);
    color: var(--accent-primary);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
  }
  .card-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
  }
  .card-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0 0 16px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
  }
  .card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-subtle);
    padding-top: 14px;
    font-size: 0.75rem;
    color: var(--text-muted);
  }
  .card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }
  .news-list {
    display: flex;
    flex-direction: column;
  }
  .news-item-featured {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-subtle);
    transition: background 0.2s;
  }
  .news-item-featured:hover {
    background: var(--bg-surface);
  }
  .news-item-featured .news-thumb {
    border-radius: 8px;
    overflow: hidden;
    display: block;
    aspect-ratio: 16/10;
  }
  .news-item-featured .news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
  }
  .news-item-featured:hover .news-thumb img {
    transform: scale(1.03);
  }
  .news-content h3 {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 8px 0;
    line-height: 1.4;
  }
  .news-content h3 a:hover {
    color: var(--accent-primary);
  }
  .news-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0 0 12px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .news-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.75rem;
    color: var(--text-muted);
  }
  .news-meta a {
    color: var(--accent-primary);
    font-weight: 500;
  }
  .news-meta a:hover {
    color: var(--accent-hover);
  }
  .news-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-subtle);
    transition: background 0.2s;
    position: relative;
  }
  .news-item:hover {
    background: var(--bg-surface);
  }
  .news-item:hover::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-primary);
    border-radius: 0 4px 4px 0;
  }
  .news-item .news-thumb-small {
    width: 96px;
    height: 68px;
    border-radius: 8px;
    overflow: hidden;
    display: block;
    flex-shrink: 0;
  }
  .news-item .news-thumb-small img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .news-content-small {
    flex: 1;
    min-width: 0;
  }
  .news-content-small h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px 0;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .news-content-small h3 a:hover {
    color: var(--accent-primary);
  }
  .news-content-small p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0 0 6px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .news-empty {
    border: 1px dashed var(--border-subtle);
    border-radius: 12px;
    padding: 60px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
  }
  .faq-list {
    max-width: 800px;
    margin: 0 auto;
  }
  .faq-item {
    border-bottom: 1px solid var(--border-subtle);
  }
  .faq-item:first-child {
    border-top: 1px solid var(--border-subtle);
  }
  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 0;
    text-align: left;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.2s;
  }
  .faq-question:hover {
    color: var(--accent-primary);
  }
  .faq-q {
    font-size: 1rem;
    font-weight: 800;
    color: var(--accent-primary);
    flex-shrink: 0;
  }
  .faq-icon {
    margin-left: auto;
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-muted);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    color: var(--accent-primary);
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
  }
  .faq-answer-inner {
    padding: 0 0 20px 34px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
  }
  .cta-section {
    position: relative;
    background: var(--bg-surface);
    border-radius: 16px;
    overflow: hidden;
    padding: 72px 48px;
    text-align: center;
  }
  .cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: var(--accent-primary);
    opacity: 0.08;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
  }
  .cta-content {
    position: relative;
    z-index: 1;
  }
  .cta-content h2 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0 0 12px 0;
  }
  .cta-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0 0 28px 0;
  }
  .cta-form {
    display: flex;
    gap: 12px;
    justify-content: center;
    max-width: 460px;
    margin: 0 auto;
    flex-wrap: wrap;
  }
  .cta-input {
    flex: 1;
    min-width: 240px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
  }
  .cta-input::placeholder {
    color: var(--text-muted);
  }
  .cta-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-soft);
    outline: none;
  }
  .cta-input:hover {
    border-color: var(--text-muted);
  }
  .footer {
    background: #0A0B0C;
    border-top: 1px solid var(--border-subtle);
    padding: 64px 0 0 0;
    margin-top: 96px;
  }
  .footer-grid {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px 48px 24px;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 48px;
  }
  .footer-brand .logo-text {
    font-size: 1.1rem;
  }
  .footer-brand p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 16px 0 0 0;
    max-width: 280px;
  }
  .footer-links h4,
  .footer-contact h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 16px 0;
  }
  .footer-links a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 6px 0;
    transition: color 0.2s;
  }
  .footer-links a:hover {
    color: var(--accent-primary);
  }
  .footer-contact p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
  }
  .footer-bottom {
    border-top: 1px solid var(--border-subtle);
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  body.js-loaded .reveal {
    opacity: 0;
    transform: translateY(20px);
  }
  body.js-loaded .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  @media (max-width: 1023px) {
    .sidebar {
      transform: translateX(-100%);
    }
    .sidebar.open {
      transform: translateX(0);
    }
    .mobile-header {
      display: flex;
    }
    .main-content {
      padding-top: 56px;
    }
    .main-wrapper {
      margin-left: 0;
    }
    .mobile-overlay.show {
      display: block;
    }
    .section-block {
      padding: 64px 0;
    }
    .about-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }
    .about-image-wrap img {
      height: 320px;
    }
  }
  @media (max-width: 1023px) and (min-width: 768px) {
    .cards-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  @media (max-width: 767px) {
    .section-block {
      padding: 48px 0;
    }
    .cards-grid {
      grid-template-columns: 1fr;
    }
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 0;
    }
    .stat-item+.stat-item::before {
      display: none;
    }
    .stat-item {
      border: none;
    }
    .stat-item:nth-child(odd) {
      border-right: 1px solid var(--border-subtle);
    }
    .stat-item:nth-child(1),
    .stat-item:nth-child(2) {
      border-bottom: 1px solid var(--border-subtle);
    }
    .hero {
      min-height: 88vh;
    }
    .hero-content {
      padding: 40px 24px;
    }
    .cta-section {
      padding: 48px 24px;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .news-item-featured {
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .news-item-featured .news-thumb {
      aspect-ratio: 16/9;
    }
    .news-item .news-thumb-small {
      width: 80px;
      height: 56px;
    }
    .footer {
      margin-top: 64px;
    }
  }
  @media (max-width: 520px) {
    .hero-actions {
      flex-direction: column;
    }
    .hero-actions .btn-primary,
    .hero-actions .btn-ghost {
      width: 100%;
    }
    .cta-form {
      flex-direction: column;
    }
    .cta-input {
      width: 100%;
      min-width: 0;
    }
    .cta-form .btn-primary {
      width: 100%;
    }
    .section-head {
      flex-direction: column;
      align-items: flex-start;
      gap: 12px;
    }
    .news-meta {
      flex-wrap: wrap;
      gap: 8px;
    }
  }

/* roulang page: category1 */
:root {
      --bg-base: #0D0E10;
      --bg-surface: #16181C;
      --bg-elevated: #1D2127;
      --border-subtle: #272B31;
      --text-primary: #F1EFEA;
      --text-secondary: #A3A9B4;
      --text-muted: #6B7280;
      --accent-primary: #E8842A;
      --accent-hover: #F59E4C;
      --accent-soft: rgba(232, 132, 42, 0.12);
      --teal-pop: #2A9D8F;
      --radius: 12px;
      --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
      --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.35);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-primary);
      line-height: 1.7;
      letter-spacing: 0.01em;
      overflow-x: hidden;
      font-size: 15px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 200ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

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

    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--accent-primary);
      outline-offset: 2px;
    }

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

    button, input {
      font-family: inherit;
    }

    .container-main {
      max-width: 1240px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .sidebar {
      position: fixed;
      top: 0;
      left: 0;
      width: 260px;
      height: 100vh;
      background-color: var(--bg-surface);
      border-right: 1px solid var(--border-subtle);
      display: flex;
      flex-direction: column;
      z-index: 50;
      padding: 0 16px;
    }

    .sidebar-logo {
      height: 56px;
      display: flex;
      align-items: center;
      padding: 0 8px;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-dot {
      width: 10px;
      height: 10px;
      background: var(--accent-primary);
      border-radius: 50%;
      display: inline-block;
      flex-shrink: 0;
    }

    .logo-text {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-primary);
      letter-spacing: 0.01em;
    }

    .sidebar-nav {
      display: flex;
      flex-direction: column;
      gap: 8px;
      padding-top: 16px;
      flex: 1;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 12px;
      height: 44px;
      padding: 0 14px;
      border-radius: 8px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-secondary);
      transition: all 200ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
      position: relative;
      border: 1px solid transparent;
    }

    .nav-item svg {
      width: 20px;
      height: 20px;
      flex-shrink: 0;
      opacity: 0.8;
    }

    .nav-item:hover {
      background-color: var(--bg-elevated);
      color: var(--text-primary);
    }

    .nav-item.active {
      background-color: var(--bg-elevated);
      color: var(--accent-primary);
      border-left: 3px solid var(--accent-primary);
      border-radius: 0 8px 8px 0;
    }

    .nav-item.active svg {
      opacity: 1;
    }

    .sidebar-footer {
      padding: 20px 8px 24px;
      border-top: 1px solid var(--border-subtle);
      font-size: 0.75rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .main-content {
      margin-left: 260px;
    }

    .mobile-header {
      display: none;
      position: sticky;
      top: 0;
      z-index: 45;
      background-color: var(--bg-surface);
      border-bottom: 1px solid var(--border-subtle);
      height: 56px;
      align-items: center;
      padding: 0 16px;
    }

    .hamburger-btn {
      background: transparent;
      border: none;
      color: var(--text-primary);
      cursor: pointer;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
    }

    .hamburger-btn:hover {
      background-color: var(--bg-elevated);
    }

    .mobile-nav-overlay {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      z-index: 98;
    }

    .mobile-drawer {
      position: fixed;
      top: 0;
      left: -300px;
      width: 280px;
      height: 100vh;
      background-color: var(--bg-surface);
      z-index: 100;
      display: flex;
      flex-direction: column;
      padding: 0 16px;
      transition: left 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
      border-right: 1px solid var(--border-subtle);
    }

    .mobile-drawer.open {
      left: 0;
    }

    .mobile-drawer-close {
      background: transparent;
      border: none;
      color: var(--text-primary);
      font-size: 1.5rem;
      cursor: pointer;
      padding: 8px;
      align-self: flex-end;
    }

    /* Page hero */
    .page-hero {
      position: relative;
      min-height: 300px;
      display: flex;
      align-items: center;
      background-image: linear-gradient(to right, rgba(13, 14, 16, 0.92), rgba(13, 14, 16, 0.72), rgba(13, 14, 16, 0.55)), url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      padding: 100px 0 70px;
      border-bottom: 1px solid var(--border-subtle);
    }

    .page-hero-inner {
      max-width: 1240px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
      width: 100%;
    }

    .breadcrumb {
      display: flex;
      gap: 8px;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 22px;
    }

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

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

    .breadcrumb .current {
      color: var(--text-primary);
    }

    .page-hero h1 {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 12px;
      color: var(--text-primary);
    }

    .page-hero .hero-desc {
      font-size: 1rem;
      color: var(--text-secondary);
      max-width: 640px;
      line-height: 1.75;
      margin-bottom: 28px;
    }

    /* Filter chips */
    .filter-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 32px;
      padding: 0;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 500;
      background-color: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      color: var(--text-secondary);
      cursor: pointer;
      transition: all 200ms ease;
    }

    .chip:hover {
      border-color: rgba(232, 132, 42, 0.5);
      color: var(--text-primary);
    }

    .chip.active {
      background-color: var(--accent-soft);
      color: var(--accent-primary);
      border-color: rgba(232, 132, 42, 0.3);
    }

    /* Section */
    .section-block {
      padding: 70px 0;
      border-bottom: 1px solid var(--border-subtle);
    }

    .section-label {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .section-label .bar {
      width: 12px;
      height: 12px;
      background: var(--accent-primary);
      border-radius: 2px;
    }

    .section-label span {
      font-size: 0.8rem;
      letter-spacing: 0.12em;
      font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase;
    }

    .section-title {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 28px;
      line-height: 1.3;
    }

    /* Info cards row */
    .info-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .info-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 28px;
      transition: all 250ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    .info-card:hover {
      transform: translateY(-4px);
      border-color: rgba(232, 132, 42, 0.4);
      box-shadow: var(--shadow-hover);
    }

    .info-card-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background-color: var(--accent-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
    }

    .info-card-icon i {
      color: var(--accent-primary);
      font-size: 18px;
    }

    .info-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .info-card p {
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .info-card-more {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.85rem;
      color: var(--accent-primary);
      font-weight: 600;
    }

    .info-card-more:hover {
      color: var(--accent-hover);
    }

    /* News list */
    .news-item-card {
      display: flex;
      gap: 20px;
      background-color: transparent;
      border-radius: var(--radius);
      margin-bottom: 30px;
      transition: all 250ms ease;
      border: 1px solid transparent;
      padding: 14px;
    }

    .news-item-card:hover {
      background-color: var(--bg-surface);
      border-color: var(--border-subtle);
      box-shadow: var(--shadow-card);
      transform: translateY(-2px);
    }

    .news-item-card .thumb-wrap {
      width: 180px;
      min-width: 180px;
      height: 130px;
      border-radius: 10px;
      overflow: hidden;
      background-color: var(--bg-elevated);
    }

    .news-item-card .thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 300ms ease;
    }

    .news-item-card:hover .thumb-wrap img {
      transform: scale(1.04);
    }

    .news-item-content {
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .news-item-content .tag {
      font-size: 0.75rem;
      color: var(--accent-primary);
      font-weight: 600;
      margin-bottom: 6px;
    }

    .news-item-content h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      line-height: 1.45;
      margin-bottom: 8px;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
    }

    .news-item-content .excerpt {
      font-size: 0.88rem;
      color: var(--text-secondary);
      line-height: 1.6;
      overflow: hidden;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      margin-bottom: 12px;
      flex: 1;
    }

    .news-meta {
      display: flex;
      gap: 14px;
      font-size: 0.78rem;
      color: var(--text-muted);
      align-items: center;
    }

    /* Block highlight */
    .hot-topic-band {
      background: linear-gradient(135deg, rgba(232, 132, 42, 0.06), rgba(42, 157, 143, 0.04));
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 40px;
      margin-bottom: 24px;
    }

    .hot-topic-band h2 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 8px;
    }

    .hot-topic-band p {
      color: var(--text-secondary);
      font-size: 0.92rem;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .band-overview {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      margin-top: 24px;
    }

    .band-stat {
      flex: 1;
      min-width: 140px;
    }

    .band-stat .num {
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--accent-primary);
      line-height: 1.2;
    }

    .band-stat .label {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* FAQ area */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid var(--border-subtle);
    }

    .faq-question {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      width: 100%;
      background: transparent;
      border: none;
      padding: 22px 0;
      text-align: left;
      cursor: pointer;
      color: var(--text-primary);
      font-size: 0.95rem;
      font-weight: 600;
      line-height: 1.5;
    }

    .faq-question .q-mark {
      font-weight: 800;
      color: var(--accent-primary);
      font-size: 1rem;
      flex-shrink: 0;
    }

    .faq-question .icon-plus {
      margin-left: auto;
      color: var(--text-muted);
      font-size: 1rem;
      transition: transform 300ms ease;
      flex-shrink: 0;
    }

    .faq-item.active .faq-question .icon-plus {
      transform: rotate(45deg);
      color: var(--accent-primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 300ms ease-out;
      padding-left: 32px;
    }

    .faq-answer-inner {
      padding-bottom: 22px;
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.75;
    }

    /* CTA */
    .cta-section {
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }

    .cta-glow {
      position: absolute;
      width: 500px;
      height: 500px;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      background-color: rgba(232, 132, 42, 0.08);
      border-radius: 50%;
      filter: blur(120px);
      pointer-events: none;
    }

    .cta-title {
      font-size: 1.4rem;
      font-weight: 800;
      text-align: center;
      margin-bottom: 10px;
      position: relative;
    }

    .cta-sub {
      text-align: center;
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-bottom: 28px;
      position: relative;
    }

    .cta-form {
      display: flex;
      max-width: 480px;
      margin: 0 auto;
      gap: 12px;
      position: relative;
    }

    .cta-form .email-input {
      flex: 1;
      background-color: var(--bg-elevated);
      border: 1px solid var(--border-subtle);
      padding: 12px 16px;
      border-radius: 8px;
      color: var(--text-primary);
      font-size: 0.9rem;
      transition: border-color 200ms ease, box-shadow 200ms ease;
    }

    .cta-form .email-input:focus {
      outline: none;
      border-color: var(--accent-primary);
      box-shadow: 0 0 0 3px var(--accent-soft);
    }

    .cta-form .email-input::placeholder {
      color: var(--text-muted);
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background-color: var(--accent-primary);
      color: #131416;
      font-weight: 700;
      padding: 12px 24px;
      min-width: 120px;
      border-radius: 8px;
      border: none;
      font-size: 0.9rem;
      cursor: pointer;
      transition: all 200ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
      text-align: center;
    }

    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-1px);
      color: #131416;
    }

    .btn-primary:active {
      transform: scale(0.98);
    }

    /* Pagination */
    .pagination {
      display: flex;
      justify-content: center;
      gap: 8px;
      margin-top: 50px;
      align-items: center;
    }

    .page-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 36px;
      height: 36px;
      padding: 0 10px;
      border-radius: 8px;
      border: 1px solid var(--border-subtle);
      background: var(--bg-surface);
      color: var(--text-secondary);
      font-size: 0.85rem;
      cursor: pointer;
      transition: all 200ms ease;
    }

    .page-btn:hover {
      border-color: var(--accent-primary);
      color: var(--accent-primary);
    }

    .page-btn.active {
      background-color: var(--accent-primary);
      color: #131416;
      border-color: var(--accent-primary);
      font-weight: 700;
    }

    .page-btn.disabled {
      opacity: 0.4;
      pointer-events: none;
    }

    .page-btn:disabled {
      opacity: 0.4;
      pointer-events: none;
    }

    /* Footer */
    .footer {
      background: #0A0B0C;
      border-top: 1px solid var(--border-subtle);
      padding-top: 64px;
      padding-bottom: 32px;
    }

    .footer-grid {
      max-width: 1240px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
      display: grid;
      grid-template-columns: 1.6fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 48px;
    }

    .footer-brand .logo-text {
      font-size: 1.1rem;
    }

    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-secondary);
      line-height: 1.75;
      margin-top: 14px;
      max-width: 320px;
    }

    .footer-links h4,
    .footer-contact h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 18px;
    }

    .footer-links a {
      display: block;
      font-size: 0.88rem;
      color: var(--text-secondary);
      margin-bottom: 10px;
    }

    .footer-links a:hover {
      color: var(--accent-primary);
    }

    .footer-contact p {
      font-size: 0.88rem;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    .footer-bottom {
      max-width: 1240px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
      border-top: 1px solid var(--border-subtle);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* Scrollbar */
    ::-webkit-scrollbar {
      width: 8px;
      height: 8px;
    }

    ::-webkit-scrollbar-track {
      background: transparent;
    }

    ::-webkit-scrollbar-thumb {
      background: var(--bg-elevated);
      border-radius: 4px;
    }

    ::-webkit-scrollbar-thumb:hover {
      background: #2a2f36;
    }

    * {
      scrollbar-width: thin;
      scrollbar-color: var(--bg-elevated) transparent;
    }

    /* Focus visible global */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--accent-primary) !important;
      outline-offset: 2px !important;
    }

    /* Breakpoints */
    @media (min-width: 1024px) {
      .mobile-header {
        display: none !important;
      }
    }

    @media (max-width: 1023.98px) {
      .sidebar {
        display: none;
      }

      .main-content {
        margin-left: 0;
      }

      .mobile-header {
        display: flex;
        justify-content: space-between;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
    }

    @media (max-width: 767.98px) {
      .info-card-grid {
        grid-template-columns: 1fr;
      }

      .news-item-card {
        flex-direction: column;
        padding: 12px;
      }

      .news-item-card .thumb-wrap {
        width: 100%;
        min-width: 0;
        height: 180px;
      }

      .page-hero {
        min-height: 240px;
        padding: 80px 0 50px;
      }

      .section-block {
        padding: 52px 0;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }

      .cta-form {
        flex-direction: column;
      }

      .cta-form .btn-primary {
        width: 100%;
      }

      .hot-topic-band {
        padding: 28px 22px;
      }

      .band-overview {
        gap: 20px;
      }

      .page-hero h1 {
        font-size: 1.8rem;
      }

      .container-main {
        padding-left: 16px;
        padding-right: 16px;
      }

      .page-hero-inner {
        padding-left: 16px;
        padding-right: 16px;
      }

      .footer-grid {
        padding-left: 16px;
        padding-right: 16px;
      }

      .footer-bottom {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    @media (max-width: 520px) {
      .news-item-card .thumb-wrap {
        height: 150px;
      }

      .filter-chips {
        gap: 8px;
      }

      .chip {
        padding: 5px 12px;
        font-size: 0.75rem;
      }

      .container-main {
        padding-left: 14px;
        padding-right: 14px;
      }

      .page-hero-inner {
        padding-left: 14px;
        padding-right: 14px;
      }

      .pagination {
        flex-wrap: wrap;
      }
    }

    /* Animations */
    @keyframes fadeUp {
      from {
        opacity: 0;
        transform: translateY(24px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .animate-fade-up {
      animation: fadeUp 600ms cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
    }

/* roulang page: article */
:root {
  --bg-base: #0D0E10;
  --bg-surface: #16181C;
  --bg-elevated: #1D2127;
  --border-subtle: #272B31;
  --text-primary: #F1EFEA;
  --text-secondary: #A3A9B4;
  --text-muted: #6B7280;
  --accent-primary: #E8842A;
  --accent-hover: #F59E4C;
  --accent-soft: rgba(232,132,42,0.12);
  --teal-pop: #2A9D8F;
  --radius: 12px;
  --shadow-hover: 0 12px 30px rgba(0,0,0,0.3);
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing: antialiased;
}
a { color:inherit; text-decoration:none; transition:color .2s; }
img { display:block; max-width:100%; }
ul, ol { list-style:none; }
button { font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input { font-family:inherit; }
::selection { background: rgba(232,132,42,.3); color: #fff; }

::-webkit-scrollbar { width:6px; height:6px; background:transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius:99px; }
* { scrollbar-width:thin; scrollbar-color: var(--bg-elevated) transparent; }

.container { max-width:1240px; margin:0 auto; padding:0 24px; }

/* ====== Sidebar ====== */
.sidebar {
  position: fixed; top:0; left:0; width:260px; height:100vh;
  background: var(--bg-surface);
  border-right:1px solid var(--border-subtle);
  display:flex; flex-direction:column;
  z-index:60;
}
.sidebar-logo {
  height:56px; display:flex; align-items:center; gap:10px;
  padding:0 22px; border-bottom:1px solid var(--border-subtle);
}
.logo-dot { width:10px; height:10px; border-radius:50%; background:var(--accent-primary); flex-shrink:0; }
.logo-text { font-size:1.05rem; font-weight:800; color:var(--text-primary); letter-spacing:.01em; white-space:nowrap; }
.sidebar-nav { flex:1; padding:18px 12px; display:flex; flex-direction:column; gap:4px; overflow-y:auto; }
.nav-item {
  display:flex; align-items:center; gap:12px;
  height:44px; padding:0 14px; border-radius:8px;
  font-size:.92rem; font-weight:500; color:var(--text-secondary);
  transition: background .15s, color .15s;
  position:relative;
}
.nav-item svg { width:18px; height:18px; flex-shrink:0; }
.nav-item:hover { background:var(--bg-elevated); color:var(--text-primary); }
.nav-item.active {
  background:var(--bg-elevated); color:var(--accent-primary); font-weight:600;
}
.nav-item.active::before {
  content:""; position:absolute; left:-12px; top:8px; bottom:8px; width:3px;
  background:var(--accent-primary); border-radius:0 4px 4px 0;
}
.sidebar-version { padding:16px 22px; font-size:.72rem; color:var(--text-muted); border-top:1px solid var(--border-subtle); }

/* ====== Mobile Header / Drawer ====== */
.mobile-header {
  display:none; position:fixed; top:0; left:0; right:0; z-index:55;
  height:56px; background:var(--bg-surface); border-bottom:1px solid var(--border-subtle);
  align-items:center; justify-content:space-between; padding:0 18px;
}
.mobile-header .logo-text { font-size:1rem; }
.mobile-hamburger { display:flex; align-items:center; justify-content:center; width:38px; height:38px; border-radius:8px; color:var(--text-secondary); transition:background .2s,color .2s; }
.mobile-hamburger:hover { background:var(--bg-elevated); color:var(--text-primary); }
.mobile-search { display:flex; align-items:center; justify-content:center; width:38px; height:38px; border-radius:8px; color:var(--text-secondary); }
.drawer-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:70;
  opacity:0; visibility:hidden; transition:opacity .2s, visibility .2s;
}
.drawer-overlay.show { opacity:1; visibility:visible; }
.drawer {
  position:fixed; top:0; left:0; width:280px; height:100vh; z-index:80;
  background:var(--bg-surface); border-right:1px solid var(--border-subtle);
  transform:translateX(-101%); transition:transform .25s ease-out;
  display:flex; flex-direction:column;
}
.drawer.show { transform:translateX(0); }
.drawer-header { height:56px; display:flex; align-items:center; justify-content:space-between; padding:0 18px; border-bottom:1px solid var(--border-subtle); }
.drawer-close { display:flex; align-items:center; justify-content:center; width:34px; height:34px; border-radius:8px; color:var(--text-muted); }
.drawer-close:hover { background:var(--bg-elevated); color:var(--text-primary); }
.drawer-nav { padding:16px 14px; }

/* ====== Main Layout ====== */
.main-content { margin-left:260px; min-height:100vh; background:var(--bg-base); }

/* ====== Hero ====== */
.cat-hero {
  position:relative; overflow:hidden;
  background:linear-gradient(135deg, rgba(13,14,16,.92) 20%, rgba(13,14,16,.72) 55%, rgba(13,14,16,.55) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:84px 0 64px;
  border-bottom:1px solid var(--border-subtle);
}
.breadcrumb {
  font-size:.8rem; color:var(--text-muted); margin-bottom:22px; display:flex; align-items:center; gap:6px;
}
.breadcrumb a { color:var(--text-muted); }
.breadcrumb a:hover { color:var(--accent-primary); }
.breadcrumb .sep { color:var(--text-muted); }
.breadcrumb .current { color:var(--text-primary); }
.cat-hero h1 {
  font-size:clamp(2rem, 4.5vw, 3rem);
  font-weight:800; line-height:1.2; letter-spacing:-.01em;
  color:var(--text-primary); margin-bottom:16px;
}
.cat-hero h1 .highlight { color:var(--accent-primary); }
.cat-hero .hero-desc {
  font-size:1rem; color:var(--text-secondary); max-width:620px; line-height:1.75; margin-bottom:36px;
}
.hero-stats {
  display:flex; flex-wrap:wrap; gap:0; background:rgba(22,24,28,.7);
  border:1px solid var(--border-subtle); border-radius:var(--radius);
  padding:24px 12px; backdrop-filter: blur(6px);
}
.hero-stats .stat-item {
  flex:1; min-width:120px; text-align:center; padding:4px 12px;
  border-right:1px solid var(--border-subtle);
}
.hero-stats .stat-item:last-child { border-right:none; }
.stat-num { font-size:1.65rem; font-weight:700; color:var(--accent-primary); line-height:1.3; }
.stat-label { font-size:.78rem; color:var(--text-secondary); margin-top:4px; }

/* ====== Section ====== */
.section { padding:64px 0; }
.section-alt { background:var(--bg-surface); border-top:1px solid var(--border-subtle); border-bottom:1px solid var(--border-subtle); }
.section-head { margin-bottom:40px; }
.section-tag {
  display:inline-flex; align-items:center; gap:8px;
  font-size:.78rem; letter-spacing:.12em; color:var(--accent-primary);
  text-transform:uppercase; margin-bottom:14px; font-weight:600;
}
.section-tag::before { content:""; width:12px; height:3px; background:var(--accent-primary); border-radius:2px; }
.section-title { font-size:1.5rem; font-weight:800; color:var(--text-primary); line-height:1.3; margin-bottom:10px; }
.section-sub { font-size:.92rem; color:var(--text-secondary); max-width:600px; }
.section-head-right { margin-left:auto; }

/* ====== Filter Chips ====== */
.filter-chips { display:flex; flex-wrap:wrap; gap:10px; margin-bottom:36px; }
.filter-chip {
  display:inline-flex; align-items:center; gap:6px;
  padding:7px 18px; border-radius:999px;
  background:var(--bg-surface); border:1px solid var(--border-subtle);
  font-size:.8rem; color:var(--text-secondary);
  transition: background .2s, color .2s, border-color .2s;
}
.filter-chip:hover { border-color:rgba(232,132,42,.5); color:var(--text-primary); }
.filter-chip.active { background:var(--accent-soft); color:var(--accent-primary); border-color:rgba(232,132,42,.35); font-weight:600; }

/* ====== Rank List ====== */
.rank-panel-head { display:flex; align-items:flex-end; justify-content:space-between; flex-wrap:wrap; gap:12px; margin-bottom:28px; }
.rank-update { display:inline-flex; align-items:center; gap:8px; font-size:.8rem; color:var(--text-muted); background:var(--bg-surface); border:1px solid var(--border-subtle); padding:5px 14px; border-radius:999px; }
.rank-update .pulse-dot { width:7px; height:7px; border-radius:50%; background:var(--teal-pop); position:relative; }
.rank-update .pulse-dot::after { content:""; position:absolute; inset:-3px; border-radius:50%; background:rgba(42,157,143,.4); animation: pulse 1.8s infinite; }
@keyframes pulse {
  0% { transform:scale(.6); opacity:.8; }
  100% { transform:scale(1.6); opacity:0; }
}

.rank-list { display:flex; flex-direction:column; gap:14px; }
.rank-item {
  display:flex; align-items:center; gap:18px;
  background:var(--bg-surface); border:1px solid var(--border-subtle);
  border-radius:var(--radius); padding:16px 20px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.rank-item:hover { transform:translateY(-3px); box-shadow:var(--shadow-hover); border-color:rgba(232,132,42,.35); }
.rank-item.rank-first {
  background:linear-gradient(135deg, rgba(232,132,42,.14), rgba(22,24,28,.6));
  border-color:rgba(232,132,42,.35);
}
.rank-num { font-size:2rem; font-weight:800; color:var(--text-muted); line-height:1; min-width:48px; text-align:center; font-variant-numeric:tabular-nums; }
.rank-first .rank-num { color:var(--accent-primary); }
.rank-thumb { width:110px; height:76px; border-radius:10px; overflow:hidden; flex-shrink:0; }
.rank-thumb img { width:100%; height:100%; object-fit:cover; transition:transform .3s; }
.rank-item:hover .rank-thumb img { transform:scale(1.05); }
.rank-info { flex:1; min-width:0; }
.rank-name { display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.rank-name h3 { font-size:1.05rem; font-weight:700; color:var(--text-primary); }
.rank-first .rank-name h3 { color:var(--accent-primary); }
.rank-badge {
  font-size:.68rem; padding:2px 10px; border-radius:999px; background:var(--accent-soft);
  color:var(--accent-primary); font-weight:600; letter-spacing:.02em;
}
.rank-badge.teal { background:rgba(42,157,143,.15); color:var(--teal-pop); }
.rank-desc { font-size:.82rem; color:var(--text-secondary); line-height:1.5; margin-top:4px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:520px; }
.rank-meta { display:flex; align-items:center; gap:16px; margin-top:6px; font-size:.75rem; color:var(--text-muted); }
.rank-score { color:var(--accent-primary); font-weight:700; }
.rank-actions { display:flex; align-items:center; gap:8px; flex-shrink:0; }
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  padding:9px 22px; border-radius:8px; font-size:.85rem; font-weight:600;
  transition: all .2s cubic-bezier(.25,.46,.45,.94);
}
.btn:active { transform:scale(.98); }
.btn:focus-visible { outline:2px solid var(--accent-primary); outline-offset:2px; }
.btn-primary { background:var(--accent-primary); color:#131416; }
.btn-primary:hover { background:var(--accent-hover); transform:translateY(-1px); }
.btn-ghost { background:transparent; border:1px solid var(--border-subtle); color:var(--text-primary); }
.btn-ghost:hover { border-color:rgba(232,132,42,.55); color:var(--accent-primary); }
.btn-sm { padding:6px 14px; font-size:.78rem; border-radius:6px; }

/* ====== Collapse 11-20 ====== */
.rank-extend { display:flex; flex-direction:column; gap:10px; margin-top:16px; padding-top:20px; border-top:1px dashed var(--border-subtle); }
.rank-extend-inner { display:none; flex-direction:column; gap:10px; }
.rank-extend-inner.open { display:flex; animation:fadeIn .3s ease-out; }
@keyframes fadeIn { from { opacity:0; transform:translateY(8px);} to { opacity:1; transform:translateY(0);} }
.rank-extend-item { display:flex; align-items:center; gap:14px; padding:10px 14px; background:var(--bg-surface); border:1px solid var(--border-subtle); border-radius:10px; }
.rank-extend-item .rank-num { font-size:1.15rem; min-width:34px; }
.rank-extend-item .rank-thumb { width:72px; height:52px; border-radius:8px; }
.rank-extend-item .rank-info h4 { font-size:.92rem; font-weight:600; }
.rank-extend-item .rank-meta { gap:10px; font-size:.72rem; }
.toggle-wrap { text-align:center; margin-top:20px; }
.toggle-btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 28px; border-radius:999px; border:1px solid var(--border-subtle);
  background:var(--bg-surface); color:var(--text-secondary); font-size:.85rem; font-weight:500;
  transition: all .2s;
}
.toggle-btn:hover { border-color:var(--accent-primary); color:var(--accent-primary); background:var(--accent-soft); }
.toggle-btn svg { transition:transform .3s; }
.toggle-btn.open svg { transform:rotate(180deg); }

/* ====== Mechanism Section ====== */
.mech-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.mech-card {
  background:var(--bg-surface); border:1px solid var(--border-subtle);
  border-radius:var(--radius); padding:28px 24px; position:relative;
  transition: border-color .25s, transform .25s;
}
.mech-card:hover { transform:translateY(-4px); border-color:rgba(232,132,42,.4); }
.mech-step { font-size:.75rem; font-weight:700; color:var(--accent-primary); letter-spacing:.08em; margin-bottom:12px; }
.mech-card h3 { font-size:1.05rem; font-weight:700; margin-bottom:8px; }
.mech-card p { font-size:.83rem; color:var(--text-secondary); line-height:1.65; }
.mech-arrow { position:absolute; top:50%; right:-18px; transform:translateY(-50%); color:var(--accent-primary); opacity:.6; z-index:2; }

/* ====== Testimonials ====== */
.testi-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
.testi-card {
  background:var(--bg-surface); border:1px solid var(--border-subtle); border-radius:var(--radius);
  padding:28px; transition:border-color .25s;
}
.testi-card:hover { border-color:rgba(232,132,42,.35); }
.testi-quote { font-size:.95rem; color:var(--text-primary); line-height:1.8; margin-bottom:18px; }
.testi-quote::before { content:"“"; font-size:1.6rem; color:var(--accent-primary); font-weight:800; margin-right:4px; }
.testi-user { display:flex; align-items:center; gap:14px; }
.testi-avatar { width:40px; height:40px; border-radius:50%; background:var(--bg-elevated); display:flex; align-items:center; justify-content:center; color:var(--accent-primary); font-weight:700; font-size:.9rem; }
.testi-name { font-size:.88rem; font-weight:600; }
.testi-title { font-size:.75rem; color:var(--text-muted); }
.testi-stars { color:var(--accent-primary); font-size:.8rem; letter-spacing:2px; margin-left:auto; }

/* ====== FAQ ====== */
.faq-list { max-width:820px; margin:0 auto; }
.faq-item { border-bottom:1px solid var(--border-subtle); padding:20px 0; }
.faq-item:first-child { border-top:1px solid var(--border-subtle); }
.faq-question {
  display:flex; align-items:center; gap:14px; width:100%; text-align:left;
  cursor:pointer; padding:0; background:none; border:none;
}
.faq-q-mark { font-size:1rem; font-weight:800; color:var(--accent-primary); flex-shrink:0; }
.faq-question .faq-title { font-size:.95rem; font-weight:600; color:var(--text-primary); flex:1; transition:color .2s; }
.faq-question:hover .faq-title { color:var(--accent-primary); }
.faq-icon { width:20px; height:20px; position:relative; flex-shrink:0; transition:transform .3s; }
.faq-icon::before, .faq-icon::after { content:""; position:absolute; background:var(--text-secondary); border-radius:2px; transition:background .2s; }
.faq-icon::before { width:14px; height:2px; top:9px; left:3px; }
.faq-icon::after { width:2px; height:14px; top:3px; left:9px; }
.faq-item.active .faq-icon { transform:rotate(45deg); }
.faq-item.active .faq-icon::before, .faq-item.active .faq-icon::after { background:var(--accent-primary); }
.faq-answer {
  max-height:0; overflow:hidden; transition:max-height .3s ease-out;
}
.faq-answer-inner { padding:14px 0 4px 30px; font-size:.88rem; color:var(--text-secondary); line-height:1.75; max-width:680px; }
.faq-item.active .faq-answer { max-height:300px; }

/* ====== CTA ====== */
.cta-section { position:relative; padding:76px 0; overflow:hidden; background:var(--bg-surface); border-top:1px solid var(--border-subtle); }
.cta-section::before {
  content:""; position:absolute; width:420px; height:420px; border-radius:50%;
  background:rgba(232,132,42,.08); filter:blur(120px); top:50%; left:50%; transform:translate(-50%,-50%); pointer-events:none;
}
.cta-inner { position:relative; text-align:center; max-width:640px; margin:0 auto; }
.cta-title { font-size:1.3rem; font-weight:800; color:var(--text-primary); margin-bottom:28px; line-height:1.4; }
.cta-form { display:flex; gap:10px; justify-content:center; flex-wrap:wrap; }
.cta-input {
  flex:1; min-width:220px; max-width:380px;
  background:var(--bg-elevated); border:1px solid var(--border-subtle);
  padding:12px 18px; border-radius:8px; color:var(--text-primary); font-size:.9rem;
  transition: border-color .2s, box-shadow .2s;
}
.cta-input::placeholder { color:var(--text-muted); }
.cta-input:focus { outline:none; border-color:var(--accent-primary); box-shadow:0 0 0 3px var(--accent-soft); }

/* ====== Footer ====== */
.footer { background:#0A0B0C; border-top:1px solid var(--border-subtle); padding:48px 0 24px; }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; margin-bottom:36px; }
.footer-brand .logo-text { font-size:1rem; }
.footer-brand p { font-size:.85rem; color:var(--text-secondary); line-height:1.7; margin-top:14px; max-width:320px; }
.footer-links h4, .footer-contact h4 { font-size:.92rem; font-weight:700; color:var(--text-primary); margin-bottom:16px; }
.footer-links a { display:block; font-size:.84rem; color:var(--text-secondary); padding:5px 0; transition:color .2s, padding-left .2s; }
.footer-links a:hover { color:var(--accent-primary); padding-left:4px; }
.footer-contact p { font-size:.84rem; color:var(--text-secondary); line-height:2; }
.footer-bottom { border-top:1px solid var(--border-subtle); padding-top:20px; display:flex; justify-content:space-between; align-items:center; font-size:.78rem; color:var(--text-muted); flex-wrap:wrap; gap:8px; }

/* ====== Responsive ====== */
@media (max-width:1023px) {
  .sidebar { display:none; }
  .mobile-header { display:flex; }
  .main-content { margin-left:0; padding-top:56px; }
  .cat-hero { padding:56px 0 40px; }
  .hero-stats .stat-item { min-width:45%; border-right:none; border-bottom:1px solid var(--border-subtle); padding:12px 8px; }
  .hero-stats .stat-item:nth-child(odd) { border-right:1px solid var(--border-subtle); }
  .hero-stats .stat-item:nth-child(3), .hero-stats .stat-item:nth-child(4) { border-bottom:none; }
  .mech-grid { grid-template-columns:repeat(2,1fr); }
  .mech-arrow { display:none; }
  .rank-item { flex-wrap:wrap; padding:14px; }
  .rank-info { flex:1 0 calc(100% - 130px); }
  .rank-thumb { width:100px; height:70px; }
  .rank-actions { margin-left:auto; }
}
@media (max-width:767px) {
  .section { padding:48px 0; }
  .cat-hero { padding:40px 0 32px; }
  .hero-stats .stat-item { min-width:46%; }
  .rank-item { gap:12px; }
  .rank-thumb { width:84px; height:60px; }
  .rank-info { flex-basis:calc(100% - 108px); }
  .rank-num { font-size:1.4rem; min-width:30px; }
  .rank-desc { white-space:normal; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
  .rank-actions { width:100%; padding-top:10px; border-top:1px solid var(--border-subtle); margin-top:4px; }
  .testi-grid { grid-template-columns:1fr; }
  .mech-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .container { padding:0 16px; }
  .rank-item { padding:12px; }
  .rank-extend-item { padding:10px; gap:10px; }
  .rank-extend-item .rank-thumb { width:56px; height:44px; }
  .cta-form { flex-direction:column; align-items:stretch; }
  .cta-input { min-width:0; max-width:none; }
}
@media (max-width:520px) {
  .rank-name h3 { font-size:.95rem; }
  .rank-desc { -webkit-line-clamp:1; }
  .filter-chips { gap:8px; }
  .filter-chip { padding:6px 14px; font-size:.75rem; }
  .section-title { font-size:1.25rem; }
  .hero-stats .stat-num { font-size:1.3rem; }
}

/* roulang page: category2 */
:root {
      --bg-base: #0D0E10;
      --bg-surface: #16181C;
      --bg-elevated: #1D2127;
      --border-subtle: #272B31;
      --text-primary: #F1EFEA;
      --text-secondary: #A3A9B4;
      --text-muted: #6B7280;
      --accent-primary: #E8842A;
      --accent-hover: #F59E4C;
      --accent-soft: rgba(232, 132, 42, 0.12);
      --teal-pop: #2A9D8F;
      --radius: 12px;
      --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.2);
      --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

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

    html {
      font-size: 16px;
    }

    body {
      font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg-base);
      color: var(--text-primary);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      text-decoration: none;
      color: inherit;
    }

    button {
      font-family: inherit;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--accent-primary);
      outline-offset: 2px;
    }

    ::-webkit-scrollbar {
      width: 8px;
      height: 8px;
    }
    ::-webkit-scrollbar-track {
      background: transparent;
    }
    ::-webkit-scrollbar-thumb {
      background: var(--bg-elevated);
      border-radius: 8px;
    }
    * {
      scrollbar-width: thin;
      scrollbar-color: var(--bg-elevated) transparent;
    }

    .line-clamp-2 {
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .line-clamp-3 {
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* ======= Sidebar ======= */
    .sidebar {
      position: fixed;
      top: 0;
      left: 0;
      width: 260px;
      height: 100vh;
      background: var(--bg-surface);
      border-right: 1px solid var(--border-subtle);
      display: flex;
      flex-direction: column;
      z-index: 100;
      padding: 0 16px 24px;
      transform: translateX(-100%);
      transition: transform 250ms ease-out;
    }
    .sidebar.open {
      transform: translateX(0);
    }
    @media (min-width: 1024px) {
      .sidebar {
        transform: none;
      }
    }

    .logo-area {
      height: 56px;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 0 6px;
      flex-shrink: 0;
    }
    .logo-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--accent-primary);
      display: inline-block;
      flex-shrink: 0;
    }
    .logo-text {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-primary);
      letter-spacing: 0.02em;
    }
    .sidebar-close {
      margin-left: auto;
      background: none;
      border: none;
      color: var(--text-muted);
      font-size: 24px;
      line-height: 1;
      padding: 4px 8px;
      cursor: pointer;
      border-radius: 6px;
    }
    .sidebar-close:hover {
      background: var(--bg-elevated);
      color: var(--text-primary);
    }
    @media (min-width: 1024px) {
      .sidebar-close {
        display: none;
      }
    }

    .sidebar-nav {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 8px;
      flex: 1;
    }
    .nav-item {
      display: flex;
      align-items: center;
      gap: 12px;
      height: 44px;
      padding: 0 14px;
      border-radius: 8px;
      color: var(--text-secondary);
      font-size: 0.95rem;
      font-weight: 500;
      border-left: 3px solid transparent;
      transition: all 150ms var(--ease);
      cursor: pointer;
    }
    .nav-item svg {
      width: 20px;
      height: 20px;
      flex-shrink: 0;
    }
    .nav-item:hover {
      background: var(--bg-elevated);
      color: var(--text-primary);
    }
    .nav-item.active {
      background: var(--bg-elevated);
      color: var(--accent-primary);
      border-left-color: var(--accent-primary);
      font-weight: 600;
    }
    .sidebar-footer {
      padding: 20px 8px 0;
      font-size: 0.75rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-subtle);
      margin-top: 16px;
    }

    /* ======= Mobile top bar ======= */
    .mobile-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 56px;
      position: sticky;
      top: 0;
      z-index: 80;
      background: rgba(22, 24, 28, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      padding: 0 16px;
    }
    @media (min-width: 1024px) {
      .mobile-header {
        display: none;
      }
    }
    .mobile-header .logo-area {
      height: auto;
      padding: 0;
    }
    .icon-btn {
      background: none;
      border: none;
      color: var(--text-secondary);
      width: 36px;
      height: 36px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 150ms var(--ease);
    }
    .icon-btn:hover {
      background: var(--bg-elevated);
      color: var(--text-primary);
    }

    /* ======= Drawer mask ======= */
    .drawer-mask {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.5);
      z-index: 90;
      opacity: 0;
      pointer-events: none;
      transition: opacity 200ms ease;
    }
    .drawer-mask.show {
      opacity: 1;
      pointer-events: auto;
    }
    @media (min-width: 1024px) {
      .drawer-mask {
        display: none;
      }
    }

    /* ======= Main layout ======= */
    .main-content {
      min-height: 100vh;
      margin-left: 0;
      display: flex;
      flex-direction: column;
    }
    @media (min-width: 1024px) {
      .main-content {
        margin-left: 260px;
      }
    }

    /* ======= Buttons ======= */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 22px;
      border-radius: 8px;
      background: var(--accent-primary);
      color: #131416;
      font-weight: 700;
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      transition: all 150ms var(--ease);
      white-space: nowrap;
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }
    .btn-primary:active {
      transform: scale(0.98);
    }
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 10px 22px;
      border-radius: 8px;
      background: transparent;
      color: var(--text-primary);
      font-weight: 600;
      font-size: 0.9rem;
      border: 1px solid var(--border-subtle);
      cursor: pointer;
      transition: all 150ms var(--ease);
      white-space: nowrap;
    }
    .btn-ghost:hover {
      border-color: rgba(232, 132, 42, 0.6);
      color: var(--accent-primary);
    }
    .btn-ghost:active {
      transform: scale(0.98);
    }

    /* ======= Page banner ======= */
    .page-banner {
      position: relative;
      padding: 64px 0 56px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      border-bottom: 1px solid var(--border-subtle);
    }
    .page-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(13, 14, 16, 0.92) 30%, rgba(13, 14, 16, 0.72) 70%, rgba(13, 14, 16, 0.45));
    }
    .page-banner > * {
      position: relative;
      z-index: 1;
    }
    .banner-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--accent-soft);
      color: var(--accent-primary);
      border-radius: 999px;
      padding: 4px 14px;
      font-size: 0.75rem;
      font-weight: 600;
      margin-bottom: 16px;
      border: 1px solid rgba(232, 132, 42, 0.15);
    }
    .page-banner h1 {
      font-size: clamp(2rem, 4vw, 2.75rem);
      font-weight: 800;
      line-height: 1.2;
      color: var(--text-primary);
      margin-bottom: 14px;
    }
    .page-banner p {
      font-size: 1rem;
      color: var(--text-secondary);
      max-width: 640px;
      line-height: 1.7;
    }

    /* ======= Breadcrumb ======= */
    .breadcrumb {
      padding: 16px 24px 0;
      font-size: 0.8rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .breadcrumb a {
      color: var(--text-muted);
      transition: color 150ms;
    }
    .breadcrumb a:hover {
      color: var(--accent-primary);
    }
    .breadcrumb span {
      color: var(--text-primary);
    }

    /* ======= Chips ======= */
    .chips-row {
      display: flex;
      gap: 10px;
      padding: 20px 24px 0;
      overflow-x: auto;
      flex-wrap: nowrap;
      scrollbar-width: none;
    }
    .chips-row::-webkit-scrollbar {
      display: none;
    }
    .chip {
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      padding: 6px 18px;
      border-radius: 999px;
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      color: var(--text-secondary);
      font-size: 0.8rem;
      cursor: pointer;
      transition: all 150ms var(--ease);
      white-space: nowrap;
    }
    .chip:hover {
      background: var(--bg-elevated);
      color: var(--text-primary);
    }
    .chip.active {
      background: var(--accent-soft);
      color: var(--accent-primary);
      border-color: rgba(232, 132, 42, 0.3);
      font-weight: 600;
    }

    /* ======= Explore section ======= */
    .explore-section {
      padding: 28px 24px 80px;
    }
    .explore-grid {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    @media (min-width: 1024px) {
      .explore-grid {
        flex-direction: row;
        align-items: flex-start;
      }
    }

    /* Filter sidebar */
    .filter-sidebar {
      width: 100%;
      flex-shrink: 0;
    }
    @media (min-width: 1024px) {
      .filter-sidebar {
        width: 200px;
        position: sticky;
        top: 24px;
      }
    }
    .filter-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 20px;
    }
    .filter-group {
      margin-bottom: 20px;
    }
    .filter-group:last-child {
      margin-bottom: 0;
    }
    .filter-group h4 {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--text-primary);
      text-transform: uppercase;
      letter-spacing: 0.06em;
      margin-bottom: 10px;
    }
    .filter-btn {
      display: block;
      width: 100%;
      text-align: left;
      padding: 8px 12px;
      border-radius: 6px;
      font-size: 0.85rem;
      color: var(--text-secondary);
      background: none;
      border: none;
      cursor: pointer;
      transition: all 150ms var(--ease);
    }
    .filter-btn:hover {
      background: var(--bg-elevated);
      color: var(--text-primary);
    }
    .filter-btn.active {
      background: var(--accent-soft);
      color: var(--accent-primary);
      font-weight: 600;
    }

    /* Game grid */
    .game-grid {
      flex: 1;
      display: grid;
      grid-template-columns: 1fr;
      gap: 24px;
    }
    @media (min-width: 768px) {
      .game-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (min-width: 1280px) {
      .game-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    .game-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 250ms var(--ease);
    }
    .game-card:hover {
      transform: translateY(-4px);
      border-color: rgba(232, 132, 42, 0.4);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    }
    .game-card-cover {
      position: relative;
      aspect-ratio: 16/9;
      overflow: hidden;
      background: var(--bg-elevated);
    }
    .game-card-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 300ms var(--ease);
    }
    .game-card:hover .game-card-cover img {
      transform: scale(1.03);
    }
    .game-card-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .game-card-tags {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 10px;
    }
    .game-tag {
      font-size: 0.72rem;
      font-weight: 600;
      color: var(--accent-primary);
      background: var(--accent-soft);
      border-radius: 999px;
      padding: 3px 10px;
    }
    .game-tag-teal {
      color: var(--teal-pop);
      background: rgba(42, 157, 143, 0.14);
    }
    .game-card-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .game-card-desc {
      font-size: 0.875rem;
      color: var(--text-secondary);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .game-card-actions {
      display: flex;
      gap: 12px;
    }
    .game-card-actions .btn-primary,
    .game-card-actions .btn-ghost {
      flex: 1;
      padding: 8px 12px;
      font-size: 0.85rem;
    }

    /* ======= Feature section ======= */
    .feature-section {
      padding: 80px 24px;
      background: var(--bg-surface);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    @media (max-width: 768px) {
      .feature-section {
        padding: 56px 16px;
      }
    }
    .section-label {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      color: var(--accent-primary);
      text-transform: uppercase;
      margin-bottom: 14px;
    }
    .section-label::before {
      content: '';
      width: 12px;
      height: 2px;
      background: var(--accent-primary);
      border-radius: 2px;
    }
    .section-title {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-primary);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .feature-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 24px;
      margin-top: 32px;
    }
    @media (min-width: 640px) {
      .feature-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (min-width: 1024px) {
      .feature-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
      }
    }
    .feature-item {
      background: var(--bg-base);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      padding: 24px 20px;
      transition: all 200ms var(--ease);
    }
    .feature-item:hover {
      border-color: rgba(232, 132, 42, 0.4);
      transform: translateY(-3px);
    }
    .feature-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--accent-soft);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }
    .feature-icon svg {
      width: 20px;
      height: 20px;
      color: var(--accent-primary);
    }
    .feature-item h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 6px;
    }
    .feature-item p {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* ======= Scene section (timeline) ======= */
    .scene-section {
      padding: 80px 24px;
    }
    @media (max-width: 768px) {
      .scene-section {
        padding: 56px 16px;
      }
    }
    .timeline {
      margin-top: 36px;
      max-width: 720px;
    }
    .timeline-item {
      position: relative;
      padding-left: 36px;
      padding-bottom: 32px;
      border-left: 1px solid var(--border-subtle);
    }
    .timeline-item:last-child {
      border-left-color: transparent;
      padding-bottom: 0;
    }
    .timeline-dot {
      position: absolute;
      left: -7px;
      top: 4px;
      width: 13px;
      height: 13px;
      border-radius: 999px;
      background: var(--bg-base);
      border: 3px solid var(--accent-primary);
    }
    .timeline-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 4px;
      line-height: 1.4;
    }
    .timeline-item p {
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* ======= Steps ======= */
    .steps-section {
      padding: 80px 24px;
      background: var(--bg-surface);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    @media (max-width: 768px) {
      .steps-section {
        padding: 56px 16px;
      }
    }
    .steps-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 28px;
      margin-top: 36px;
    }
    @media (min-width: 640px) {
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (min-width: 1024px) {
      .steps-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }
    .step-item {
      text-align: center;
      padding: 24px 16px;
      background: var(--bg-base);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius);
      transition: all 200ms var(--ease);
    }
    .step-item:hover {
      border-color: rgba(232, 132, 42, 0.4);
      transform: translateY(-3px);
    }
    .step-number {
      width: 44px;
      height: 44px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: var(--accent-primary);
      font-size: 1.1rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
    }
    .step-item h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 6px;
    }
    .step-item p {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.6;
      max-width: 200px;
      margin: 0 auto;
    }
    .step-arrow {
      display: none;
    }
    @media (min-width: 1024px) {
      .step-arrow {
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-muted);
        font-size: 1.2rem;
        position: absolute;
        right: -22px;
        top: 50%;
        transform: translateY(-50%);
      }
      .steps-grid {
        position: relative;
      }
      .step-item {
        position: relative;
      }
    }

    /* ======= FAQ ======= */
    .faq-section {
      padding: 80px 24px;
    }
    @media (max-width: 768px) {
      .faq-section {
        padding: 56px 16px;
      }
    }
    .faq-list {
      max-width: 760px;
      margin-top: 32px;
    }
    .faq-item {
      padding: 20px 0;
      border-bottom: 1px solid var(--border-subtle);
    }
    .faq-question {
      display: flex;
      align-items: center;
      gap: 16px;
      width: 100%;
      background: none;
      border: none;
      text-align: left;
      cursor: pointer;
      padding: 0;
    }
    .faq-q {
      font-size: 1rem;
      font-weight: 800;
      color: var(--accent-primary);
      flex-shrink: 0;
    }
    .faq-text {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-primary);
      flex: 1;
      line-height: 1.5;
    }
    .faq-icon {
      width: 28px;
      height: 28px;
      border-radius: 999px;
      border: 1px solid var(--border-subtle);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      color: var(--text-secondary);
      flex-shrink: 0;
      transition: transform 300ms var(--ease);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      border-color: var(--accent-primary);
      color: var(--accent-primary);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 300ms ease-out;
    }
    .faq-answer-inner {
      padding: 12px 0 0 32px;
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.7;
      max-width: 640px;
    }

    /* ======= CTA ======= */
    .cta-section {
      padding: 80px 24px;
    }
    @media (max-width: 768px) {
      .cta-section {
        padding: 56px 16px;
      }
    }
    .cta-banner {
      position: relative;
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 56px 32px;
      text-align: center;
      overflow: hidden;
    }
    .cta-banner::before {
      content: '';
      position: absolute;
      width: 320px;
      height: 320px;
      border-radius: 999px;
      background: rgba(232, 132, 42, 0.08);
      filter: blur(100px);
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      pointer-events: none;
    }
    .cta-banner > * {
      position: relative;
      z-index: 1;
    }
    .cta-banner h2 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 12px;
    }
    .cta-banner p {
      font-size: 0.95rem;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }
    .cta-form {
      display: flex;
      gap: 12px;
      max-width: 440px;
      margin: 0 auto;
      flex-direction: column;
    }
    @media (min-width: 640px) {
      .cta-form {
        flex-direction: row;
      }
    }
    .cta-form input {
      flex: 1;
      background: var(--bg-elevated);
      border: 1px solid var(--border-subtle);
      border-radius: 8px;
      padding: 12px 16px;
      color: var(--text-primary);
      font-size: 0.9rem;
      outline: none;
      transition: all 150ms var(--ease);
    }
    .cta-form input:focus {
      border-color: var(--accent-primary);
      box-shadow: 0 0 0 3px var(--accent-soft);
    }
    .cta-form .btn-primary {
      min-width: 140px;
    }

    /* ======= Footer ======= */
    .footer {
      background: #0A0B0C;
      border-top: 1px solid var(--border-subtle);
      padding: 56px 24px 24px;
      margin-left: 0;
    }
    @media (min-width: 1024px) {
      .footer {
        margin-left: 260px;
      }
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
      max-width: 1240px;
      margin: 0 auto;
    }
    @media (min-width: 768px) {
      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
      }
    }
    .footer-brand p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-top: 12px;
      max-width: 360px;
    }
    .footer-links h4,
    .footer-contact h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 12px;
    }
    .footer-links a {
      display: block;
      font-size: 0.85rem;
      color: var(--text-secondary);
      padding: 4px 0;
      transition: color 150ms;
    }
    .footer-links a:hover {
      color: var(--accent-primary);
    }
    .footer-contact p {
      font-size: 0.85rem;
      color: var(--text-secondary);
      line-height: 1.7;
    }
    .footer-bottom {
      max-width: 1240px;
      margin: 40px auto 0;
      padding-top: 20px;
      border-top: 1px solid var(--border-subtle);
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-muted);
    }

/* roulang page: category3 */
:root {
  --bg-base: #0D0E10;
  --bg-surface: #16181C;
  --bg-elevated: #1D2127;
  --border-subtle: #272B31;
  --text-primary: #F1EFEA;
  --text-secondary: #A3A9B4;
  --text-muted: #6B7280;
  --accent-primary: #E8842A;
  --accent-hover: #F59E4C;
  --accent-soft: rgba(232, 132, 42, 0.12);
  --teal-pop: #2A9D8F;
  --radius-lg: 12px;
  --radius-md: 8px;
  --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.3);
  --transition: all 200ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
  border-radius: 6px;
}
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--bg-elevated);
  border-radius: 8px;
}
* {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-elevated) transparent;
}
.logo-dot {
  width: 10px;
  height: 10px;
  background: var(--accent-primary);
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.logo-text {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  white-space: nowrap;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 12px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 12px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}
.nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.nav-item:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}
.nav-item.active {
  background: var(--bg-elevated);
  color: var(--accent-primary);
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: var(--accent-primary);
  border-radius: 0 4px 4px 0;
}
.mobile-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 56px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-primary);
  border-radius: 8px;
  transition: var(--transition);
}
.mobile-menu-btn:active {
  background: var(--bg-elevated);
}
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease;
}
.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}
.drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  width: 280px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  transform: translateX(-100%);
  transition: transform 250ms ease-out;
  display: flex;
  flex-direction: column;
}
.drawer.open {
  transform: translateX(0);
}
.drawer-header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.drawer-close {
  width: 36px;
  height: 36px;
  color: var(--text-secondary);
  font-size: 1.2rem;
  border-radius: 8px;
  transition: var(--transition);
}
.drawer-close:hover {
  color: var(--text-primary);
  background: var(--bg-elevated);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 24px 0;
}
.breadcrumb a {
  transition: var(--transition);
}
.breadcrumb a:hover {
  color: var(--accent-primary);
}
.breadcrumb .sep {
  color: var(--border-subtle);
}
.breadcrumb .current {
  color: var(--text-primary);
  font-weight: 500;
}
.page-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroScale 10s linear forwards;
}
@keyframes heroScale {
  to {
    transform: scale(1);
  }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 14, 16, 0.92) 0%, rgba(13, 14, 16, 0.72) 50%, rgba(13, 14, 16, 0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  padding: 76px 24px;
  width: 100%;
}
.hero-badge {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-primary);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.75;
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px;
}
.chip {
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--transition);
}
.chip:hover {
  border-color: rgba(232, 132, 42, 0.4);
  color: var(--text-primary);
}
.chip.active {
  background: var(--accent-soft);
  color: var(--accent-primary);
  border-color: rgba(232, 132, 42, 0.3);
  font-weight: 600;
}
.ranking-section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 12px 24px 64px;
}
.ranking-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.ranking-head h2 {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.3;
}
.ranking-head p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.rank-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.rank-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.rank-item:hover {
  transform: translateY(-2px);
  border-color: rgba(232, 132, 42, 0.4);
  box-shadow: var(--shadow-hover);
}
.rank-item--first {
  background: var(--accent-soft);
  border-color: rgba(232, 132, 42, 0.25);
}
.rank-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-muted);
  min-width: 56px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.rank-item--first .rank-number {
  color: var(--accent-primary);
}
.rank-thumb {
  width: 110px;
  height: 70px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.rank-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}
.rank-item:hover .rank-thumb img {
  transform: scale(1.05);
}
.rank-info {
  flex: 1;
  min-width: 0;
}
.rank-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.rank-title-row h3 {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
}
.rank-item--first .rank-title-row h3 {
  color: var(--accent-primary);
}
.rank-crown {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-primary);
  background: rgba(232, 132, 42, 0.15);
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid rgba(232, 132, 42, 0.3);
}
.rank-tag {
  font-size: 0.7rem;
  color: var(--accent-primary);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 500;
}
.rank-trend {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.rank-trend.up {
  color: var(--teal-pop);
  background: rgba(42, 157, 143, 0.12);
}
.rank-trend.down {
  color: var(--text-muted);
  background: var(--bg-elevated);
}
.rank-trend.steady {
  color: var(--text-secondary);
  background: var(--bg-elevated);
}
.rank-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.rank-meta {
  display: flex;
  gap: 14px;
  margin-top: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.rank-action {
  flex-shrink: 0;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: var(--accent-primary);
  color: #131416;
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 8px;
  transition: var(--transition);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: scale(0.98);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.85rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  transition: var(--transition);
}
.btn-outline:hover {
  border-color: rgba(232, 132, 42, 0.6);
  color: var(--accent-primary);
}
.btn-outline:active {
  transform: scale(0.98);
}
.rank-collapse {
  margin-top: 28px;
  border-top: 1px dashed var(--border-subtle);
  padding-top: 28px;
}
.collapse-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}
.collapse-trigger:hover {
  border-color: rgba(232, 132, 42, 0.4);
  color: var(--text-primary);
}
.collapse-icon {
  font-size: 1.2rem;
  transition: transform 300ms ease;
}
.collapse-trigger.open .collapse-icon {
  transform: rotate(45deg);
}
.collapse-content {
  display: none;
  margin-top: 16px;
}
.collapse-content.open {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.rank-item--compact {
  padding: 12px 16px;
}
.rank-item--compact .rank-number {
  font-size: 1.15rem;
  min-width: 36px;
  font-weight: 700;
}
.rank-thumb--sm {
  width: 96px;
  height: 60px;
}
.criteria-section {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(22, 24, 28, 0.4);
}
.criteria-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 24px;
}
.section-head {
  margin-bottom: 32px;
}
.section-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.section-label::before {
  content: '';
  width: 12px;
  height: 3px;
  background: var(--accent-primary);
  border-radius: 2px;
}
.section-head h2 {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.3;
}
.criteria-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.criteria-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}
.criteria-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 132, 42, 0.4);
  box-shadow: var(--shadow-hover);
}
.criteria-icon {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-primary);
  display: block;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}
.criteria-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.criteria-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
}
.faq-section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}
.faq-list {
  border-top: 1px solid var(--border-subtle);
}
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}
.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 20px 0;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition);
}
.faq-question:hover {
  color: var(--accent-primary);
}
.faq-q-mark {
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent-primary);
  flex-shrink: 0;
}
.faq-text {
  flex: 1;
}
.faq-toggle {
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform 300ms ease;
  flex-shrink: 0;
}
.faq-item.open .faq-toggle {
  transform: rotate(45deg);
  color: var(--accent-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease-out;
}
.faq-answer-inner {
  padding: 0 0 20px;
  padding-left: 30px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 760px;
}
.faq-item.open .faq-answer {
  max-height: 400px;
}
.cta-section {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px 80px;
}
.cta-box {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 56px 24px;
  text-align: center;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(232, 132, 42, 0.08);
  filter: blur(120px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.cta-box h2 {
  position: relative;
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-box p {
  position: relative;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}
.cta-form {
  position: relative;
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-form input {
  flex: 1;
  min-width: 240px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
}
.cta-form input::placeholder {
  color: var(--text-muted);
}
.cta-form input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.cta-form button {
  min-width: 120px;
}
.footer {
  background: #0A0B0C;
  border-top: 1px solid var(--border-subtle);
  padding: 48px 24px 24px;
}
.footer-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
}
.footer-brand p {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.65;
  max-width: 360px;
}
.footer h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-links,
.footer-contact {
  display: flex;
  flex-direction: column;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 4px 0;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent-primary);
}
.footer-contact p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.8;
}
.footer-bottom {
  max-width: 1240px;
  margin: 0 auto;
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.8rem;
}
@media (max-width: 1023px) {
  .sidebar-static {
    display: none !important;
  }
}
@media (min-width: 1024px) {
  .mobile-drawer-shell {
    display: none !important;
  }
}
@media (max-width: 767px) {
  .criteria-grid {
    grid-template-columns: 1fr;
  }
  .rank-item {
    flex-wrap: wrap;
    padding: 14px;
    gap: 12px;
  }
  .rank-number {
    min-width: 36px;
    font-size: 1.4rem;
  }
  .rank-thumb {
    width: 96px;
    height: 60px;
  }
  .rank-thumb--sm {
    width: 80px;
    height: 52px;
  }
  .rank-action {
    width: 100%;
  }
  .rank-action .btn-primary,
  .rank-action .btn-outline {
    width: 100%;
  }
  .hero-content {
    padding: 52px 24px;
  }
  .hero-content p {
    font-size: 0.95rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}