/* roulang page: index */
:root {
    --primary: #e11d48;
    --primary-dark: #be123c;
    --primary-light: #fda4af;
    --navy: #0f172a;
    --navy-light: #1e293b;
    --bg: #f8fafc;
    --bg-light: #f1f5f9;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 16px 40px rgba(0,0,0,0.14);
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'system-ui', sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
  }

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

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

  button,
  input,
  select,
  textarea {
    font-family: inherit;
    outline: none;
  }

  button:focus-visible,
  a:focus-visible,
  input:focus-visible {
    outline: 3px solid rgba(225, 29, 72, 0.35);
    outline-offset: 2px;
    border-radius: 6px;
  }

  .container {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  /* ===== Mobile Header ===== */
  .mobile-header {
    position: sticky;
    top: 0;
    z-index: 45;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  /* ===== Sidebar ===== */
  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    z-index: 60;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    border-right: 1px solid rgba(255,255,255,0.06);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
  }

  .app-sidebar.open {
    transform: translateX(0);
  }

  @media (min-width: 1024px) {
    .app-sidebar {
      transform: translateX(0);
    }
    .sidebar-spacer {
      display: block !important;
    }
  }

  .sidebar-spacer {
    display: none;
    width: 280px;
    flex-shrink: 0;
  }

  .sidebar-mask {
    position: fixed;
    inset: 0;
    z-index: 55;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .sidebar-mask.active {
    opacity: 1;
    visibility: visible;
  }

  .sidebar-brand {
    padding: 28px 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .sidebar-nav {
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
  }

  .nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 16px;
    border-radius: 14px;
    color: #cbd5e1;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    position: relative;
  }

  .nav-item i {
    width: 20px;
    text-align: center;
    font-size: 16px;
  }

  .nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: #f8fafc;
    transform: translateX(4px);
  }

  .nav-item.active {
    background: linear-gradient(135deg, rgba(225,29,72,0.9), rgba(190,18,60,0.9));
    color: #fff;
    box-shadow: 0 8px 24px rgba(225,29,72,0.3);
  }

  .nav-item.active::before {
    content: '';
    position: absolute;
    left: -14px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: #f43f5e;
    border-radius: 0 4px 4px 0;
  }

  .sidebar-footer {
    padding: 20px 24px;
    border-top: 1px solid rgba(255,255,255,0.08);
    color: #94a3b8;
    font-size: 12px;
    line-height: 1.6;
  }

  /* ===== Main Area ===== */
  .main-area {
    width: 100%;
    min-height: 100vh;
  }

  @media (min-width: 1024px) {
    .main-area {
      margin-left: 0;
    }
  }

  /* ===== Hero ===== */
  .hero-section {
    position: relative;
    min-height: 640px;
    display: flex;
    align-items: center;
    overflow: hidden;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
  }

  .hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(2,6,23,0.96) 0%, rgba(15,23,42,0.88) 45%, rgba(225,29,72,0.35) 100%);
  }

  .hero-container {
    position: relative;
    z-index: 10;
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.18);
    backdrop-filter: blur(8px);
    padding: 8px 16px;
    border-radius: 100px;
    color: #fda4af;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
  }

  .hero-badge i {
    color: #f43f5e;
  }

  .hero-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    color: #fff;
    letter-spacing: -0.5px;
    margin: 24px 0 20px;
  }

  .hero-title .gradient-text {
    background: linear-gradient(135deg, #fda4af 0%, #f43f5e 60%, #fbbf24 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero-desc {
    font-size: 18px;
    color: #94a3b8;
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: 32px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #e11d48, #be123c);
    color: #fff;
    padding: 14px 28px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(225,29,72,0.35);
    transition: all 0.25s ease;
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(225,29,72,0.45);
  }

  .btn-primary:active {
    transform: translateY(0);
  }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.25);
    color: #f1f5f9;
    padding: 14px 28px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.25s ease;
  }

  .btn-ghost:hover {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.4);
    transform: translateY(-2px);
  }

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 480px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,0.1);
  }

  .hero-stat {
    color: #fff;
  }

  .hero-stat .num {
    font-size: 28px;
    font-weight: 800;
    color: #fda4af;
    line-height: 1.2;
  }

  .hero-stat .label {
    font-size: 13px;
    color: #94a3b8;
    margin-top: 4px;
  }

  /* ===== Section ===== */
  .section {
    padding: 88px 0;
  }

  .section-alt {
    background: #fff;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .section-header {
    max-width: 640px;
    margin-bottom: 48px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(225,29,72,0.1);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 14px;
  }

  .section-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-main);
    letter-spacing: -0.4px;
  }

  .section-desc {
    color: var(--text-muted);
    font-size: 16px;
    margin-top: 12px;
    line-height: 1.7;
  }

  /* ===== Feature Card ===== */
  .feature-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #e11d48, #f43f5e, #fbbf24);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
  }

  .feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
  }

  .feature-card:hover::before {
    transform: scaleX(1);
  }

  .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(225,29,72,0.1), rgba(225,29,72,0.05));
    color: var(--primary);
  }

  .feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .feature-card p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
  }

  /* ===== Category Card ===== */
  .category-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 320px;
    display: flex;
    align-items: flex-end;
    box-shadow: var(--shadow);
    transition: all 0.35s ease;
  }

  .category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
  }

  .category-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .category-card:hover img {
    transform: scale(1.06);
  }

  .category-card .overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(2,6,23,0) 20%, rgba(2,6,23,0.92) 100%);
  }

  .category-card .content {
    position: relative;
    z-index: 2;
    padding: 28px;
    color: #fff;
  }

  .category-card .content .badge {
    display: inline-block;
    background: rgba(225,29,72,0.9);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
  }

  .category-card h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
  }

  .category-card p {
    font-size: 14px;
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 16px;
  }

  .category-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: #fda4af;
    font-size: 14px;
    font-weight: 600;
    transition: gap 0.2s ease;
  }

  .category-link:hover {
    gap: 12px;
    color: #fecdd3;
  }

  /* ===== News List ===== */
  .news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .news-card {
    display: block;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    transition: all 0.25s ease;
  }

  .news-card:hover {
    border-color: rgba(225,29,72,0.3);
    box-shadow: var(--shadow-lg);
    transform: translateX(4px);
  }

  .news-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 10px;
    flex-wrap: wrap;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.4;
  }

  .badge-red {
    background: rgba(225,29,72,0.1);
    color: var(--primary);
  }

  .badge-blue {
    background: rgba(59,130,246,0.1);
    color: #2563eb;
  }

  .badge-amber {
    background: rgba(245,158,11,0.12);
    color: #b45309;
  }

  .news-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
  }

  .news-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 6px;
    line-height: 1.4;
    transition: color 0.2s ease;
  }

  .news-card:hover h3 {
    color: var(--primary);
  }

  .news-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-top: 12px;
    opacity: 0;
    transform: translateX(-6px);
    transition: all 0.3s ease;
  }

  .news-card:hover .news-more {
    opacity: 1;
    transform: translateX(0);
  }

  .empty-state {
    background: #fff;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 64px 24px;
    text-align: center;
    color: var(--text-muted);
  }

  .empty-state i {
    font-size: 40px;
    color: var(--border);
    margin-bottom: 12px;
  }

  /* ===== Stats ===== */
  .stats-section {
    position: relative;
    overflow: hidden;
    padding: 88px 0;
  }

  .stats-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
  }

  .stats-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(2,6,23,0.92), rgba(15,23,42,0.88), rgba(225,29,72,0.3));
  }

  .stats-container {
    position: relative;
    z-index: 2;
  }

  .stat-item {
    text-align: center;
    padding: 32px 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(6px);
    transition: all 0.3s ease;
  }

  .stat-item:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-4px);
  }

  .stat-item .num {
    font-size: 34px;
    font-weight: 800;
    color: #fff;
    line-height: 1.1;
  }

  .stat-item .label {
    color: #a5b4fc;
    font-size: 14px;
    margin-top: 8px;
  }

  /* ===== Hotspot Grid ===== */
  .hotspot-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .hotspot-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
  }

  .hotspot-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
  }

  .hotspot-card .thumb {
    position: relative;
    height: 180px;
    overflow: hidden;
  }

  .hotspot-card .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }

  .hotspot-card:hover .thumb img {
    transform: scale(1.08);
  }

  .hotspot-card .thumb .badge-hot {
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, #e11d48, #be123c);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 100px;
    box-shadow: 0 4px 12px rgba(225,29,72,0.4);
  }

  .hotspot-card .body {
    padding: 18px;
  }

  .hotspot-card .body .tag {
    font-size: 12px;
    color: var(--primary);
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
    display: block;
  }

  .hotspot-card .body h3 {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 8px;
  }

  .hotspot-card .body p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  /* ===== Process ===== */
  .process-section {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    padding: 88px 0;
    color: #fff;
  }

  .process-section .section-title {
    color: #fff;
  }

  .process-section .section-desc {
    color: #94a3b8;
  }

  .process-section .section-tag {
    color: #fda4af;
    background: rgba(225,29,72,0.2);
  }

  .process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
  }

  .process-step {
    position: relative;
    padding: 28px 24px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
  }

  .process-step:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-4px);
  }

  .process-step .step-num {
    font-size: 42px;
    font-weight: 900;
    background: linear-gradient(135deg, #fda4af, #f43f5e);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    margin-bottom: 14px;
  }

  .process-step h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .process-step p {
    font-size: 14px;
    color: #cbd5e1;
    line-height: 1.6;
  }

  .process-arrow {
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,0.2);
    font-size: 18px;
    z-index: 2;
  }

  /* ===== FAQ ===== */
  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.2s ease;
  }

  .faq-item:hover {
    border-color: rgba(225,29,72,0.25);
  }

  .faq-item summary {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: background 0.2s ease;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary i {
    color: var(--primary);
    transition: transform 0.3s ease;
    font-size: 14px;
    flex-shrink: 0;
  }

  .faq-item[open] summary i {
    transform: rotate(45deg);
  }

  .faq-item .faq-answer {
    padding: 0 24px 20px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    border-top: 1px solid var(--border);
    padding-top: 16px;
  }

  /* ===== CTA ===== */
  .cta-section {
    position: relative;
    padding: 88px 0;
    overflow: hidden;
  }

  .cta-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
  }

  .cta-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(2,6,23,0.9), rgba(15,23,42,0.8), rgba(190,18,60,0.4));
  }

  .cta-container {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
  }

  .cta-container h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 16px;
  }

  .cta-container p {
    color: #cbd5e1;
    font-size: 16px;
    margin-bottom: 32px;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 48px 0 32px;
    border-top: 1px solid rgba(255,255,255,0.06);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
  }

  .footer-brand h3 {
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 10px;
  }

  .footer-brand p {
    font-size: 13px;
    line-height: 1.7;
    max-width: 320px;
  }

  .footer-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-links a {
    font-size: 14px;
    color: #94a3b8;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .footer-links a:hover {
    color: #fda4af;
    transform: translateX(4px);
  }

  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #64748b;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .hero-section {
      min-height: 540px;
    }
    .hotspot-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .process-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 768px) {
    .section {
      padding: 64px 0;
    }
    .hero-section {
      min-height: 480px;
    }
    .hero-stats {
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .process-grid {
      grid-template-columns: 1fr;
    }
    .process-arrow {
      display: none;
    }
  }

  @media (max-width: 520px) {
    .hotspot-grid {
      grid-template-columns: 1fr;
    }
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }
    .btn-primary,
    .btn-ghost {
      justify-content: center;
    }
    .hero-stats {
      grid-template-columns: 1fr;
    }
    .section-title {
      font-size: 22px;
    }
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }
  }

/* roulang page: article */
:root {
            --brand-50: #f0fdf4;
            --brand-100: #dcfce7;
            --brand-500: #22c55e;
            --brand-600: #16a34a;
            --brand-700: #15803d;
            --brand-800: #166534;
            --accent-500: #f59e0b;
            --dark: #0f172a;
            --dark-light: #1e293b;
            --slate-50: #f8fafc;
            --slate-100: #f1f5f9;
            --slate-200: #e2e8f0;
            --slate-400: #94a3b8;
            --slate-500: #64748b;
            --slate-700: #334155;
            --slate-800: #1e293b;
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.14);
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--slate-50);
            color: var(--slate-800);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input:focus,
        textarea:focus,
        button:focus {
            outline: 3px solid rgba(34, 197, 94, 0.35);
            outline-offset: 2px;
        }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            background: linear-gradient(180deg, var(--dark), var(--dark-light));
            z-index: 60;
            display: flex;
            flex-direction: column;
            padding: 28px 20px 24px;
            transition: transform 0.3s ease;
            box-shadow: var(--shadow-lg);
            overflow-y: auto;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 8px 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 24px;
        }

        .logo-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 8px 20px rgba(34, 197, 94, 0.35);
        }

        .logo-text {
            color: #ffffff;
            font-size: 20px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .logo-sub {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
            letter-spacing: 2px;
            margin-top: 2px;
        }

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

        .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            color: rgba(255, 255, 255, 0.68);
            font-size: 15px;
            font-weight: 500;
            padding: 13px 16px;
            border-radius: 12px;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .nav-item i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .nav-item:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            transform: translateX(4px);
        }

        .nav-item.active {
            color: #ffffff;
            background: linear-gradient(135deg, var(--brand-600), var(--brand-700));
            box-shadow: 0 8px 20px rgba(22, 163, 74, 0.35);
        }

        .sidebar-footer-note {
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.35);
            font-size: 12px;
            line-height: 1.8;
        }

        .main-content {
            flex: 1;
            margin-left: 280px;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 55;
            height: 64px;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(12px);
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            color: #ffffff;
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.3);
        }

        .mobile-logo {
            font-size: 17px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .menu-toggle {
            color: #ffffff;
            font-size: 20px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.55);
            z-index: 59;
            backdrop-filter: blur(2px);
        }

        .overlay.active {
            display: block;
        }

        .article-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            color: #ffffff;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.65));
            z-index: 1;
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb a:hover {
            color: var(--brand-300, #86efac);
        }

        .breadcrumb i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.5);
        }

        .article-hero h1 {
            font-size: clamp(28px, 4.5vw, 44px);
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 18px;
            max-width: 800px;
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
        }

        .article-meta .badge {
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 14px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 13px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .page-content {
            padding: 56px 20px 64px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .content-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }

        .article-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 44px 44px 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--slate-100);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--slate-700);
            word-break: break-word;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--slate-800);
            margin-top: 36px;
            margin-bottom: 16px;
            padding-left: 14px;
            border-left: 4px solid var(--brand-500);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--slate-800);
            margin-top: 28px;
            margin-bottom: 12px;
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 22px;
            padding-left: 24px;
        }

        .article-content li {
            margin-bottom: 10px;
        }

        .article-content img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            margin: 28px 0;
        }

        .article-content blockquote {
            background: var(--slate-50);
            border-left: 4px solid var(--accent-500);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--slate-500);
            font-style: italic;
        }

        .not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found i {
            font-size: 48px;
            color: var(--brand-500);
            margin-bottom: 18px;
        }

        .not-found h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--slate-500);
            margin-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            border-radius: 12px;
            padding: 12px 24px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
            color: #ffffff;
            box-shadow: 0 8px 20px rgba(22, 163, 74, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(22, 163, 74, 0.35);
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.4);
            color: #ffffff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
        }

        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .side-box {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--slate-100);
        }

        .side-box h3 {
            font-size: 18px;
            font-weight: 800;
            margin: 0 0 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-box h3 i {
            color: var(--brand-500);
        }

        .side-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .side-item {
            display: flex;
            gap: 14px;
            align-items: center;
            padding: 10px;
            border-radius: 12px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .side-item:hover {
            background: var(--slate-50);
            border-color: var(--slate-100);
            transform: translateX(4px);
        }

        .side-item img {
            width: 80px;
            height: 64px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .side-title {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--slate-800);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .side-meta {
            font-size: 12px;
            color: var(--slate-400);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .section-block {
            padding: 80px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: rgba(34, 197, 94, 0.1);
            color: var(--brand-700);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--slate-800);
        }

        .section-head p {
            color: var(--slate-500);
            max-width: 620px;
            margin: 0 auto;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--slate-100);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand-500), var(--accent-500));
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--brand-100);
        }

        .feature-card:hover::after {
            opacity: 1;
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(34, 197, 94, 0.1);
            color: var(--brand-700);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--slate-800);
        }

        .feature-card p {
            color: var(--slate-500);
            font-size: 14px;
            margin: 0;
            line-height: 1.8;
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--white);
            border-radius: 14px;
            padding: 22px 26px;
            border: 1px solid var(--slate-100);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-100);
        }

        .faq-item details {
            cursor: pointer;
        }

        .faq-item summary {
            font-size: 16px;
            font-weight: 600;
            color: var(--slate-800);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary i {
            color: var(--brand-500);
            font-size: 14px;
            transition: var(--transition);
        }

        .faq-item details[open] summary i {
            transform: rotate(180deg);
        }

        .faq-item p {
            margin: 16px 0 0;
            color: var(--slate-500);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--slate-100);
            padding-top: 16px;
        }

        .cta-block {
            background: linear-gradient(135deg, var(--dark), var(--dark-light));
            border-radius: var(--radius);
            padding: 56px 48px;
            text-align: center;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.78));
        }

        .cta-block > * {
            position: relative;
            z-index: 1;
        }

        .cta-block h2 {
            color: #ffffff;
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            margin: 0 0 12px;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.9;
            margin: 0;
            max-width: 360px;
        }

        .footer-title {
            color: #ffffff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            border-radius: 999px;
            background: var(--brand-500);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--brand-400, #4ade80);
            transform: translateX(4px);
        }

        .footer-links a i {
            font-size: 12px;
            color: var(--brand-500);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
        }

        .footer-bottom p {
            margin: 0;
        }

        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }

            .sidebar.open {
                transform: translateX(0);
            }

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

            .mobile-header {
                display: flex;
            }

            .overlay.active {
                display: block;
            }

            .content-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                order: -1;
            }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-content {
                padding: 32px 16px 40px;
            }

            .article-card {
                padding: 28px 22px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .section-block {
                padding: 56px 0;
            }

            .cta-block {
                padding: 40px 24px;
                border-radius: 14px;
            }

            .article-hero {
                padding: 56px 0 48px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 24px;
            }

            .article-card {
                padding: 20px 16px;
            }

            .article-content {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 20px;
            }

            .breadcrumb {
                font-size: 13px;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
            }

            .cta-btns {
                flex-direction: column;
                align-items: center;
            }

            .cta-btns .btn {
                width: 100%;
            }

            .side-item {
                padding: 8px;
            }

            .side-item img {
                width: 72px;
                height: 60px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #10b981;
  --primary-dark: #047857;
  --primary-light: #d1fae5;
  --accent: #f59e0b;
  --accent-dark: #b45309;
  --dark-bg: #0f172a;
  --dark-bg-2: #1e293b;
  --content-bg: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-weak: #64748b;
  --border-color: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 14px 34px rgba(15, 23, 42, 0.14);
  --transition: all .25s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--content-bg);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { font-family: inherit; }
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ========== App Shell 左侧导航 ========== */
.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
  width: 244px;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background: var(--dark-bg);
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  transition: var(--transition);
  overflow-y: auto;
}
.sidebar-logo { display: flex; align-items: center; gap: 12px; padding: 8px 12px 20px; margin-bottom: 10px; border-bottom: 1px solid rgba(148,163,184,.15); }
.sidebar-logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #10b981, #047857);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(16,185,129,.4);
}
.sidebar-logo-text .logo-cn { color: #fff; font-weight: 800; font-size: 17px; line-height: 1.3; letter-spacing: .5px; }
.sidebar-logo-text .logo-sub { color: #64748b; font-size: 11px; letter-spacing: 2px; }
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; margin-top: 18px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  color: #94a3b8;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}
.nav-item i { width: 22px; text-align: center; font-size: 16px; }
.nav-item:hover { background: rgba(148,163,184,.1); color: #e2e8f0; }
.nav-item.active { background: linear-gradient(135deg, rgba(16,185,129,.22), rgba(16,185,129,.12)); color: #10b981; font-weight: 600; box-shadow: inset 3px 0 0 #10b981; }
.sidebar-footer { margin-top: auto; padding: 16px 12px 4px; border-top: 1px solid rgba(148,163,184,.12); color: #475569; font-size: 11px; line-height: 1.7; }
.main-wrap { flex: 1; margin-left: 244px; min-width: 0; display: flex; flex-direction: column; }
.main-content { flex: 1; }

/* ========== Hero ========== */
.cat-hero {
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin: 16px 16px 0;
  border-radius: 24px;
  overflow: hidden;
  isolation: isolate;
}
.cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15,23,42,.92) 0%, rgba(15,23,42,.72) 45%, rgba(16,185,129,.28) 100%);
  z-index: 1;
}
.cat-hero__content { position: relative; z-index: 2; max-width: 760px; padding: 56px 32px; color: #fff; }
.cat-hero__content h1 { font-size: 34px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; letter-spacing: 1px; }
.cat-hero__content p { font-size: 16px; color: rgba(226,232,240,.85); margin-bottom: 22px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); backdrop-filter: blur(6px); color: #f1f5f9; padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 500; }

/* ========== 子分类 Tabs ========== */
.block-subcats { padding: 28px 0 8px; }
.subcat-tabs { display: flex; flex-wrap: wrap; gap: 10px; }
.subcat-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border-color);
  color: var(--text-weak);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.subcat-tab:hover { border-color: var(--primary); color: var(--primary-dark); transform: translateY(-2px); }
.subcat-tab.active { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-color: transparent; box-shadow: 0 8px 22px rgba(16,185,129,.3); }

/* ========== 通用板块 ========== */
.block-cards { padding: 40px 24px; }
.block-list { padding: 40px 24px; }
.block-stats { padding: 40px 24px; }
.block-feature { padding: 40px 24px; }
.block-faq { padding: 40px 24px; }
.block-cta { padding: 40px 24px 60px; }
.section-head { margin-bottom: 28px; max-width: 640px; }
.section-head h2 { font-size: 28px; font-weight: 800; color: #0f172a; letter-spacing: .5px; position: relative; padding-left: 16px; }
.section-head h2::before { content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 5px; border-radius: 4px; background: linear-gradient(180deg, #10b981, #059669); }
.section-head p { font-size: 15px; color: var(--text-weak); margin-top: 10px; padding-left: 16px; }

/* ========== 热门赛事卡片 ========== */
.match-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.match-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.match-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(16,185,129,.35); }
.match-card__cover { position: relative; aspect-ratio: 16/10; overflow: hidden; }
.match-card__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.match-card:hover .match-card__cover img { transform: scale(1.06); }
.match-card__badge { position: absolute; top: 12px; left: 12px; z-index: 2; }
.card-badge { background: rgba(255,255,255,.92); color: #065f46; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px; box-shadow: 0 4px 12px rgba(0,0,0,.15); }
.match-card__body { padding: 18px 18px 16px; display: flex; flex-direction: column; flex: 1; }
.match-card__body h3 { font-size: 17px; font-weight: 700; line-height: 1.5; color: #1e293b; margin-bottom: 8px; }
.match-card__body p { font-size: 13px; color: var(--text-weak); line-height: 1.6; flex: 1; }
.match-card__foot { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; margin-top: 14px; border-top: 1px solid #f1f5f9; font-size: 12px; color: #94a3b8; }
.match-card__foot .hot { color: #f59e0b; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; }

/* ========== 数据面板 ========== */
.stats-panel {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  border-radius: 24px;
  padding: 44px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  overflow: hidden;
}
.stats-panel::before { content: ''; position: absolute; top: -80px; right: -80px; width: 240px; height: 240px; border-radius: 50%; background: rgba(16,185,129,.15); filter: blur(60px); }
.stats-panel::after { content: ''; position: absolute; bottom: -60px; left: 30%; width: 200px; height: 200px; border-radius: 50%; background: rgba(245,158,11,.1); filter: blur(50px); }
.stat-item { text-align: center; position: relative; z-index: 1; }
.stat-num { font-size: 40px; font-weight: 800; color: #fff; line-height: 1.2; background: linear-gradient(135deg, #34d399, #10b981); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 14px; color: #94a3b8; margin-top: 6px; font-weight: 500; }

/* ========== 资讯列表 ========== */
.news-list { display: flex; flex-direction: column; gap: 14px; }
.news-item {
  display: flex; align-items: center; gap: 20px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 18px 24px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  cursor: pointer;
}
.news-item:hover { box-shadow: var(--shadow-hover); transform: translateX(6px); border-color: rgba(16,185,129,.35); }
.news-date { flex-shrink: 0; text-align: center; background: #f1f5f9; border-radius: 10px; padding: 6px 10px; font-size: 13px; font-weight: 700; color: #475569; line-height: 1.3; }
.news-info { flex: 1; min-width: 0; }
.news-tag { display: inline-block; font-size: 12px; font-weight: 600; color: #047857; background: #d1fae5; padding: 2px 10px; border-radius: 999px; margin-bottom: 4px; }
.news-info h3 { font-size: 16px; font-weight: 600; color: #1e293b; line-height: 1.5; }
.news-info p { font-size: 13px; color: #94a3b8; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-meta { flex-shrink: 0; font-size: 12px; color: #94a3b8; text-align: right; display: flex; flex-direction: column; gap: 4px; }

/* ========== 深度解读 ========== */
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.feature-card { display: flex; background: #fff; border-radius: var(--radius); border: 1px solid var(--border-color); box-shadow: var(--shadow-card); overflow: hidden; transition: var(--transition); }
.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card__cover { width: 190px; flex-shrink: 0; }
.feature-card__cover img { width: 100%; height: 100%; object-fit: cover; }
.feature-card__body { padding: 20px 22px; display: flex; flex-direction: column; }
.feature-card__body h3 { font-size: 16px; font-weight: 700; color: #1e293b; line-height: 1.5; }
.feature-card__body p { font-size: 13px; color: #94a3b8; margin-top: 6px; flex: 1; line-height: 1.6; }
.feature-card__foot { font-size: 12px; color: #10b981; font-weight: 600; margin-top: 10px; display: inline-flex; align-items: center; gap: 6px; }

/* ========== FAQ ========== */
.faq-list { max-width: 860px; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--border-color); border-radius: var(--radius); box-shadow: var(--shadow-card); overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 24px; font-size: 15px; font-weight: 600; color: #1e293b; transition: var(--transition); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: #10b981; transition: var(--transition); flex-shrink: 0; }
.faq-item[open] summary { color: #047857; }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-answer { padding: 0 24px 20px; font-size: 14px; color: var(--text-weak); line-height: 1.8; border-top: 1px solid #f8fafc; }

/* ========== CTA ========== */
.cta-panel { background: linear-gradient(135deg, #065f46, #059669); border-radius: 24px; padding: 52px 48px; text-align: center; color: #fff; position: relative; overflow: hidden; }
.cta-panel::before { content: ''; position: absolute; top: -50%; left: -20%; width: 400px; height: 400px; border-radius: 50%; background: rgba(255,255,255,.06); }
.cta-panel::after { content: ''; position: absolute; bottom: -60%; right: -10%; width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,.05); }
.cta-panel h2 { font-size: 28px; font-weight: 800; margin-bottom: 12px; position: relative; z-index: 1; }
.cta-panel p { font-size: 15px; color: rgba(255,255,255,.85); max-width: 520px; margin: 0 auto 28px; position: relative; z-index: 1; }
.cta-buttons { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 32px; border-radius: 999px; font-size: 15px; font-weight: 600; transition: var(--transition); border: none; cursor: pointer; }
.btn-primary { background: #fff; color: #065f46; box-shadow: 0 8px 26px rgba(0,0,0,.15); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,.22); }
.btn-ghost { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.3); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255,255,255,.22); transform: translateY(-3px); }

/* ========== 页脚 ========== */
.site-footer { background: #0f172a; color: #94a3b8; font-size: 14px; }
.site-footer .container { padding-top: 44px; padding-bottom: 24px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-brand p { font-size: 13px; line-height: 1.7; color: #64748b; max-width: 340px; }
.footer-title { font-size: 15px; font-weight: 700; color: #e2e8f0; margin-bottom: 16px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ''; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px; border-radius: 3px; background: #10b981; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: #94a3b8; font-size: 14px; display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); }
.footer-links a:hover { color: #10b981; padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(148,163,184,.12); padding-top: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 13px; color: #64748b; }

/* ========== 响应式 ========== */
@media (max-width: 1200px) {
  .match-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1024px) {
  .app-sidebar { width: 82px; padding: 20px 10px; }
  .sidebar-logo { justify-content: center; padding: 8px 4px 20px; }
  .sidebar-logo-text, .nav-item span, .sidebar-footer { display: none; }
  .nav-item { justify-content: center; padding: 14px 0; }
  .nav-item i { font-size: 18px; }
  .main-wrap { margin-left: 82px; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
}
@media (max-width: 768px) {
  .app-shell { flex-direction: column; }
  .app-sidebar { width: 100%; height: auto; position: sticky; top: 0; bottom: auto; flex-direction: column; padding: 10px 16px; z-index: 60; }
  .sidebar-logo { padding: 6px 0; margin-bottom: 0; border-bottom: none; justify-content: flex-start; }
  .sidebar-logo-text { display: block; }
  .sidebar-nav { flex-direction: row; overflow-x: auto; gap: 6px; margin-top: 6px; padding-bottom: 4px; scrollbar-width: none; }
  .sidebar-nav::-webkit-scrollbar { display: none; }
  .nav-item { justify-content: center; padding: 9px 16px; flex-shrink: 0; font-size: 13px; }
  .nav-item i { font-size: 14px; }
  .nav-item span { display: inline; }
  .nav-item.active { box-shadow: none; background: rgba(16,185,129,.16); }
  .main-wrap { margin-left: 0; }
  .cat-hero { min-height: 260px; margin: 12px 12px 0; }
  .cat-hero__content h1 { font-size: 24px; }
  .cat-hero__content p { font-size: 14px; }
  .hero-tags span { font-size: 12px; padding: 4px 10px; }
  .section-head h2 { font-size: 22px; }
  .block-cards, .block-list, .block-stats, .block-feature, .block-faq, .block-cta { padding: 28px 16px; }
  .match-grid { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 10px; padding: 16px; }
  .news-meta { flex-direction: row; gap: 12px; align-items: center; }
  .stats-panel { grid-template-columns: repeat(2, 1fr); gap: 24px; padding: 32px 24px; border-radius: 18px; }
  .stat-num { font-size: 30px; }
  .feature-card { flex-direction: column; }
  .feature-card__cover { width: 100%; aspect-ratio: 16/9; }
  .feature-grid { grid-template-columns: 1fr; }
  .cta-panel { padding: 36px 22px; border-radius: 18px; }
  .cta-panel h2 { font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { justify-content: center; text-align: center; }
}
@media (max-width: 520px) {
  .cat-hero__content { padding: 36px 20px; }
  .subcat-tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; -webkit-overflow-scrolling: touch; }
  .subcat-tab { flex-shrink: 0; }
  .news-date { font-size: 12px; }
  .news-info h3 { font-size: 14px; }
}

/* roulang page: category2 */
:root {
      --brand-50: #eef2ff;
      --brand-100: #e0e7ff;
      --brand-200: #c7d2fe;
      --brand-500: #6366f1;
      --brand-600: #4f46e5;
      --brand-700: #4338ca;
      --brand-800: #3730a3;
      --brand-900: #312e81;
      --accent: #f59e0b;
      --ink: #0f172a;
      --muted: #64748b;
      --border: #e2e8f0;
      --bg: #f8fafc;
      --bg-soft: #f1f5f9;
      --white: #ffffff;
      --radius: 18px;
      --radius-sm: 12px;
      --shadow: 0 10px 30px rgba(15, 23, 42, .06);
      --shadow-lg: 0 20px 45px rgba(15, 23, 42, .10);
      --sidebar-width: 268px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
      background: var(--bg);
      color: var(--ink);
      line-height: 1.6;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button {
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 侧边栏 */
    .site-sidebar {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: var(--sidebar-width);
      background: var(--white);
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      z-index: 60;
      transition: transform .3s ease;
    }

    .sidebar-brand {
      padding: 24px;
      border-bottom: 1px solid var(--border);
    }

    .sidebar-nav {
      padding: 20px 12px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      flex: 1;
    }

    .nav-label {
      padding: 0 10px;
      margin-bottom: 8px;
      font-size: 12px;
      letter-spacing: .08em;
      color: var(--muted);
      text-transform: uppercase;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      color: #475569;
      font-size: 15px;
      font-weight: 500;
      transition: all .2s;
    }

    .nav-item i {
      width: 20px;
      text-align: center;
      font-size: 16px;
      color: #94a3b8;
      transition: color .2s;
    }

    .nav-item:hover {
      background: var(--bg-soft);
      color: var(--brand-700);
    }

    .nav-item.active {
      background: linear-gradient(135deg, var(--brand-50), var(--brand-100));
      color: var(--brand-800);
      font-weight: 600;
      box-shadow: inset 0 0 0 1px rgba(99, 102, 241, .12);
    }

    .nav-item.active i {
      color: var(--brand-600);
    }

    .sidebar-footer {
      padding: 20px;
      border-top: 1px solid var(--border);
    }

    .sidebar-card {
      background: linear-gradient(135deg, var(--brand-700), var(--brand-900));
      border-radius: 14px;
      color: #fff;
      padding: 16px;
    }

    .btn-simple {
      display: inline-block;
      margin-top: 12px;
      padding: 8px 14px;
      background: rgba(255, 255, 255, .15);
      border-radius: 20px;
      font-size: 13px;
      color: #fff;
      transition: background .2s;
    }

    .btn-simple:hover {
      background: rgba(255, 255, 255, .25);
    }

    /* 移动端头部 */
    .mobile-header {
      position: sticky;
      top: 0;
      z-index: 55;
      display: none;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      background: rgba(255, 255, 255, .9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }

    .menu-toggle {
      width: 42px;
      height: 42px;
      border: 1px solid var(--border);
      background: #fff;
      border-radius: 12px;
      font-size: 18px;
      color: var(--ink);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .mobile-logo {
      font-size: 18px;
      font-weight: 700;
      color: var(--brand-700);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .mobile-cta {
      display: inline-flex;
      align-items: center;
      padding: 8px 14px;
      background: var(--brand-700);
      color: #fff;
      font-size: 13px;
      font-weight: 500;
      border-radius: 999px;
    }

    .drawer-overlay {
      position: fixed;
      inset: 0;
      background: rgba(15, 23, 42, .5);
      z-index: 59;
      opacity: 0;
      visibility: hidden;
      transition: all .3s;
    }

    .drawer-overlay.active {
      opacity: 1;
      visibility: visible;
    }

    @media (max-width: 1023px) {
      .site-sidebar {
        transform: translateX(-100%);
        box-shadow: none;
      }
      .site-sidebar.open {
        transform: translateX(0);
        box-shadow: 0 0 40px rgba(0, 0, 0, .2);
      }
      .mobile-header {
        display: flex;
      }
      .site-main {
        margin-left: 0 !important;
      }
    }

    /* 主内容 */
    .site-main {
      margin-left: var(--sidebar-width);
      min-height: 100vh;
    }

    /* Hero */
    .hero-banner {
      position: relative;
      background-size: cover;
      background-position: center;
      color: #fff;
      padding: 80px 0 64px;
    }

    .hero-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(15, 23, 42, .92) 0%, rgba(30, 27, 75, .75) 45%, rgba(99, 102, 241, .35) 100%);
    }

    .hero-banner .container {
      position: relative;
      z-index: 2;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: rgba(255, 255, 255, .8);
      margin-bottom: 20px;
    }

    .breadcrumb a {
      color: #c7d2fe;
    }

    .breadcrumb a:hover {
      color: #fff;
    }

    .hero-banner h1 {
      font-size: clamp(32px, 5vw, 52px);
      font-weight: 800;
      line-height: 1.15;
      margin: 0 0 16px;
    }

    .hero-banner .lead {
      font-size: 18px;
      max-width: 720px;
      color: rgba(255, 255, 255, .85);
      line-height: 1.7;
      margin: 0 0 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
      color: #fff;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      box-shadow: 0 8px 20px rgba(79, 70, 229, .35);
      transition: transform .2s, box-shadow .2s;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(79, 70, 229, .45);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 24px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .35);
      color: #fff;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 500;
      backdrop-filter: blur(6px);
      transition: all .2s;
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, .22);
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, auto);
      gap: 20px 40px;
      margin-top: 40px;
      padding-top: 28px;
      border-top: 1px solid rgba(255, 255, 255, .2);
      width: max-content;
      max-width: 100%;
    }

    .stat-item {
      display: flex;
      flex-direction: column;
    }

    .stat-item strong {
      font-size: 28px;
      font-weight: 800;
      line-height: 1.2;
    }

    .stat-item span {
      font-size: 14px;
      color: rgba(255, 255, 255, .7);
    }

    /* 通用板块 */
    .section {
      padding: 72px 0;
    }

    .section-white {
      background: #fff;
    }

    .section-gray {
      background: var(--bg-soft);
    }

    .section-dark {
      background: #0f172a;
      color: #fff;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 24px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 12px;
      background: var(--brand-50);
      color: var(--brand-700);
      border: 1px solid var(--brand-100);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .section-head h2 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 800;
      margin: 0 0 8px;
      letter-spacing: -0.02em;
    }

    .section-head p {
      max-width: 640px;
      color: var(--muted);
      font-size: 16px;
      margin: 0;
    }

    .section-dark .section-tag {
      background: rgba(255, 255, 255, .1);
      color: #c7d2fe;
      border-color: rgba(255, 255, 255, .15);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 20px;
      border: 1px solid var(--border);
      border-radius: 999px;
      color: var(--ink);
      font-size: 14px;
      font-weight: 500;
      transition: all .2s;
      background: #fff;
    }

    .btn-outline:hover {
      border-color: var(--brand-500);
      color: var(--brand-700);
      background: var(--brand-50);
    }

    .section-dark .btn-outline {
      background: transparent;
      color: #fff;
      border-color: rgba(255, 255, 255, .25);
    }

    .section-dark .btn-outline:hover {
      background: rgba(255, 255, 255, .1);
      border-color: #fff;
    }

    /* 学习路径 */
    .path-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .path-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      transition: transform .25s, box-shadow .25s;
    }

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

    .path-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
      font-size: 13px;
      color: var(--muted);
      font-weight: 600;
    }

    .badge-warm {
      padding: 4px 10px;
      border-radius: 999px;
      background: #fef3c7;
      color: #b45309;
      font-size: 12px;
      font-weight: 600;
    }

    .badge-brand {
      padding: 4px 10px;
      border-radius: 999px;
      background: var(--brand-50);
      color: var(--brand-700);
      font-size: 12px;
      font-weight: 600;
    }

    .badge-dark {
      padding: 4px 10px;
      border-radius: 999px;
      background: #e2e8f0;
      color: #334155;
      font-size: 12px;
      font-weight: 600;
    }

    .path-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 0 0 8px;
    }

    .path-card p {
      font-size: 14px;
      color: var(--muted);
      margin: 0 0 20px;
      line-height: 1.6;
    }

    .progress-line {
      height: 8px;
      background: var(--bg-soft);
      border-radius: 999px;
      overflow: hidden;
    }

    .progress-line span {
      display: block;
      height: 100%;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--brand-500), var(--brand-700));
    }

    .path-foot {
      display: flex;
      justify-content: space-between;
      margin-top: 12px;
      font-size: 13px;
      color: var(--muted);
    }

    /* 内容卡片网格 */
    .card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .guide-card {
      background: #fff;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      transition: transform .25s, box-shadow .25s;
    }

    .guide-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }

    .card-media {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
    }

    .card-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .4s;
    }

    .guide-card:hover .card-media img {
      transform: scale(1.04);
    }

    .media-label {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, .75);
      color: #fff;
      backdrop-filter: blur(4px);
      font-size: 12px;
      padding: 5px 10px;
      border-radius: 999px;
    }

    .card-body {
      padding: 20px;
    }

    .card-tags {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
    }

    .tag {
      display: inline-block;
      padding: 4px 10px;
      background: var(--bg-soft);
      color: #475569;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 500;
    }

    .guide-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 0 0 8px;
    }

    .guide-card p {
      font-size: 14px;
      color: var(--muted);
      margin: 0 0 16px;
      line-height: 1.6;
    }

    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 600;
      color: var(--brand-700);
      transition: color .2s;
    }

    .card-link:hover {
      color: var(--brand-500);
    }

    /* 教程列表 */
    .tutorial-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .tutorial-item {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 20px 24px;
      transition: all .25s;
    }

    .tutorial-item:hover {
      border-color: var(--brand-200);
      box-shadow: var(--shadow);
      transform: translateX(4px);
    }

    .tutorial-index {
      font-size: 26px;
      font-weight: 800;
      color: var(--brand-200);
      min-width: 48px;
    }

    .tutorial-info {
      flex: 1;
    }

    .tutorial-info h3 {
      font-size: 17px;
      font-weight: 700;
      margin: 0 0 6px;
    }

    .tutorial-info p {
      font-size: 14px;
      color: var(--muted);
      margin: 0 0 10px;
      line-height: 1.6;
    }

    .tutorial-meta {
      display: flex;
      gap: 16px;
      font-size: 13px;
      color: var(--muted);
      flex-wrap: wrap;
    }

    .tag-hot {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 3px 10px;
      background: #fef3c7;
      color: #b45309;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
    }

    .btn-read {
      padding: 8px 18px;
      border: 1px solid var(--border);
      border-radius: 999px;
      font-size: 14px;
      color: var(--ink);
      transition: all .2s;
      background: #fff;
      white-space: nowrap;
    }

    .btn-read:hover {
      background: var(--brand-700);
      border-color: var(--brand-700);
      color: #fff;
    }

    /* 热度榜 */
    .rank-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .rank-item {
      display: flex;
      align-items: center;
      gap: 16px;
      background: rgba(255, 255, 255, .05);
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: 14px;
      padding: 16px 18px;
      transition: all .2s;
    }

    .rank-item:hover {
      background: rgba(255, 255, 255, .1);
      transform: translateY(-2px);
    }

    .rank-num {
      font-size: 22px;
      font-weight: 800;
      color: var(--accent);
      width: 32px;
    }

    .rank-icon {
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, .08);
      border-radius: 10px;
      color: #c7d2fe;
    }

    .rank-info {
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .rank-info strong {
      color: #fff;
      font-size: 15px;
    }

    .rank-info span {
      color: rgba(255, 255, 255, .6);
      font-size: 13px;
    }

    .rank-trend {
      font-size: 13px;
      color: #34d399;
      font-weight: 600;
    }

    /* 更新日历 */
    .timeline {
      display: flex;
      flex-direction: column;
      gap: 20px;
      max-width: 760px;
    }

    .timeline-item {
      position: relative;
      padding-left: 28px;
    }

    .timeline-item::before {
      content: "";
      position: absolute;
      left: 8px;
      top: 6px;
      bottom: -18px;
      width: 2px;
      background: var(--border);
    }

    .timeline-item:last-child::before {
      display: none;
    }

    .timeline-item::after {
      content: "";
      position: absolute;
      left: 3px;
      top: 8px;
      width: 12px;
      height: 12px;
      background: var(--brand-500);
      border-radius: 50%;
      box-shadow: 0 0 0 4px var(--brand-50);
    }

    .timeline-date {
      display: inline-block;
      font-size: 13px;
      color: var(--brand-700);
      font-weight: 600;
      background: var(--brand-50);
      padding: 4px 12px;
      border-radius: 999px;
    }

    .timeline-content {
      margin-top: 8px;
    }

    .timeline-content h3 {
      font-size: 16px;
      font-weight: 700;
      margin: 0 0 4px;
    }

    .timeline-content p {
      font-size: 14px;
      color: var(--muted);
      margin: 0;
    }

    /* FAQ */
    .faq-list {
      max-width: 760px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px;
      margin-bottom: 14px;
      overflow: hidden;
      transition: box-shadow .2s;
    }

    .faq-item:hover {
      box-shadow: var(--shadow);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 22px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      list-style: none;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary i {
      transition: transform .3s;
      color: var(--brand-500);
    }

    .faq-item[open] summary i {
      transform: rotate(45deg);
    }

    .faq-item p {
      padding: 0 22px 18px;
      margin: 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.7;
    }

    /* CTA */
    .section-cta {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 80px 0;
      text-align: center;
      color: #fff;
    }

    .section-cta::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(15, 23, 42, .7), rgba(49, 46, 129, .85));
    }

    .section-cta .container {
      position: relative;
      z-index: 1;
    }

    .section-cta h2 {
      font-size: clamp(26px, 3.5vw, 38px);
      font-weight: 800;
      margin: 0 0 12px;
    }

    .section-cta p {
      font-size: 17px;
      color: rgba(255, 255, 255, .8);
      margin: 0 0 28px;
    }

    .cta-actions {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }

    /* 页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr;
      gap: 40px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      margin: 0;
      color: #94a3b8;
    }

    .footer-title {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 16px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #94a3b8;
      font-size: 14px;
      transition: color .2s;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .1);
      margin-top: 40px;
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

    /* 响应式 */
    @media (max-width: 1024px) {
      .path-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .card-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .rank-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 28px;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 52px 0;
      }
      .hero-banner {
        padding: 60px 0 48px;
      }
      .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        width: 100%;
        gap: 16px;
      }
      .path-grid {
        grid-template-columns: 1fr;
      }
      .card-grid {
        grid-template-columns: 1fr;
      }
      .rank-grid {
        grid-template-columns: 1fr;
      }
      .tutorial-item {
        flex-wrap: wrap;
      }
      .btn-read {
        margin-left: 48px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 520px) {
      .hero-actions {
        width: 100%;
      }
      .btn-primary,
      .btn-ghost {
        width: 100%;
      }
      .section-head {
        align-items: flex-start;
      }
      .section-head .btn-outline {
        width: 100%;
        justify-content: center;
      }
      .tutorial-item {
        padding: 16px;
      }
      .tutorial-index {
        min-width: 32px;
        font-size: 22px;
      }
      .btn-read {
        margin-left: 0;
        width: 100%;
        text-align: center;
      }
    }