/* roulang page: index */
:root {
    --ink: #111418;
    --ember: #E8502A;
    --cream: #F7F5F2;
    --body: #1A1D21;
    --sub: #6B7280;
    --faint: #9CA3AF;
    --line: #E5E1DB;
    --card: #FFFFFF;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    --transition: 300ms ease;
  }

  * {
    box-sizing: border-box;
  }

  html,
  body {
    margin: 0;
    padding: 0;
    background: var(--cream);
    color: var(--body);
    font-family: 'Noto Sans SC', 'Source Han Sans', 'Inter', system-ui, sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

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

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

  button {
    font-family: inherit;
    cursor: pointer;
  }

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

  /* 侧边栏导航 */
  .sidebar {
    background: var(--ink);
    color: #F7F5F2;
    width: 240px;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 40;
  }

  .sidebar-logo {
    padding: 32px 24px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .sidebar-logo .logo-name {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #F7F5F2;
    line-height: 1.2;
  }

  .sidebar-logo .logo-name span {
    color: var(--ember);
  }

  .sidebar-logo .logo-sub {
    font-size: 0.6875rem;
    letter-spacing: 0.18em;
    color: rgba(255, 255, 255, 0.45);
    margin-top: 2px;
    font-family: 'Georgia', serif;
  }

  .sidebar-nav {
    flex: 1;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.9375rem;
    font-weight: 500;
    border-left: 2px solid transparent;
    transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    position: relative;
  }

  .nav-item .nav-arrow {
    font-size: 0.8rem;
    opacity: 0.4;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav-item:hover {
    color: #F7F5F2;
    background: rgba(255, 255, 255, 0.04);
    border-left-color: rgba(232, 80, 42, 0.5);
  }

  .nav-item:hover .nav-arrow {
    transform: translateX(4px);
    opacity: 0.8;
  }

  .nav-item.active {
    color: #F7F5F2;
    font-weight: 600;
    border-left-color: var(--ember);
  }

  .nav-item.active .nav-arrow {
    opacity: 0.9;
    color: var(--ember);
  }

  .sidebar-foot {
    padding: 20px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.6875rem;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.05em;
    line-height: 1.5;
  }

  /* 移动端头部 */
  .mobile-header {
    background: var(--ink);
    color: #F7F5F2;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 30;
  }

  .mobile-logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: #F7F5F2;
  }

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

  .menu-btn {
    background: none;
    border: none;
    color: #F7F5F2;
    font-size: 1.5rem;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.25s ease;
  }

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

  /* 移动端抽屉 */
  .drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: var(--ink);
    z-index: 60;
    transform: translateX(-100%);
    transition: transform 0.35s ease;
    display: flex;
    flex-direction: column;
    padding: 24px 0;
  }

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

  .drawer-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
    padding: 4px;
    border-radius: 4px;
  }

  .drawer-close:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
  }

  .drawer-logo {
    padding: 8px 24px 20px;
    font-size: 1.4rem;
    font-weight: 800;
    color: #F7F5F2;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

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

  .drawer-nav {
    flex: 1;
    padding: 16px 0;
    display: flex;
    flex-direction: column;
  }

  .drawer-nav .nav-item {
    padding: 16px 28px;
    font-size: 1.0625rem;
  }

  .drawer-foot {
    padding: 20px 28px;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.35);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 55;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
  }

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

  /* 主内容区 */
  .main-wrap {
    margin-left: 0;
  }

  @media (min-width: 1024px) {
    .main-wrap {
      margin-left: 240px;
    }
  }

  /* Hero */
  .hero {
    background: var(--ink);
    color: #F7F5F2;
    padding: 80px 0 0;
    position: relative;
    overflow: hidden;
  }

  .hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
  }

  .hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
  }

  @media (min-width: 1024px) {
    .hero-container {
      grid-template-columns: 1fr 1fr;
      padding: 0 48px;
    }
  }

  .hero-kicker {
    font-family: 'Georgia', serif;
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    margin-bottom: 20px;
    display: block;
  }

  .hero-title {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.22;
    margin: 0 0 16px;
    letter-spacing: 0.01em;
  }

  @media (min-width: 768px) {
    .hero-title {
      font-size: 3.1rem;
    }
  }

  .hero-line {
    width: 36px;
    height: 3px;
    background: var(--ember);
    margin-bottom: 20px;
  }

  .hero-sub {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 360px;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--ember);
    color: #fff;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    transition: background 0.3s ease, transform 0.3s ease;
  }

  .btn-primary:hover {
    background: #d14a24;
    transform: translateY(-1px);
  }

  .btn-primary .btn-arrow {
    transition: transform 0.3s ease;
  }

  .btn-primary:hover .btn-arrow {
    transform: translateX(4px);
  }

  .btn-text {
    display: inline-flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    font-weight: 500;
    position: relative;
    padding-bottom: 2px;
  }

  .btn-text::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--ember);
    transition: width 0.3s ease;
  }

  .btn-text:hover::after {
    width: 100%;
  }

  .hero-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .hero-image img {
    width: 100%;
    height: 340px;
    object-fit: cover;
  }

  @media (min-width: 1024px) {
    .hero-image img {
      height: 420px;
    }
  }

  .hero-image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(17, 20, 24, 0.15);
  }

  /* 通用区块 */
  .section {
    padding: 64px 0;
  }

  @media (min-width: 768px) {
    .section {
      padding: 96px 0;
    }
  }

  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 40px;
    gap: 20px;
    flex-wrap: wrap;
  }

  .section-eyebrow {
    font-family: 'Georgia', serif;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    color: var(--ember);
    text-transform: uppercase;
    margin-bottom: 8px;
    display: block;
  }

  .section-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--body);
    margin: 0;
    letter-spacing: 0.01em;
    line-height: 1.3;
  }

  .section-link {
    font-size: 0.875rem;
    color: var(--sub);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color 0.25s ease;
  }

  .section-link:hover {
    color: var(--ember);
  }

  /* 编号目录 */
  .catalog-list {
    border-top: 1px solid var(--line);
  }

  .catalog-item {
    display: flex;
    align-items: center;
    padding: 28px 8px;
    border-bottom: 1px solid var(--line);
    transition: background 0.25s ease;
    gap: 24px;
  }

  .catalog-item:hover {
    background: #F0EEE9;
  }

  .catalog-num {
    font-family: 'Georgia', serif;
    font-size: 1.6rem;
    color: var(--ember);
    min-width: 48px;
    line-height: 1;
    transition: color 0.25s ease;
  }

  .catalog-item:hover .catalog-num {
    color: var(--ink);
  }

  .catalog-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--body);
    margin: 0 0 4px;
    flex: 1;
    line-height: 1.3;
  }

  .catalog-desc {
    font-size: 0.8125rem;
    color: var(--sub);
    margin: 0;
    line-height: 1.6;
  }

  .catalog-arrow {
    font-size: 1.2rem;
    color: var(--faint);
    transition: transform 0.3s ease, color 0.3s ease;
    flex-shrink: 0;
  }

  .catalog-item:hover .catalog-arrow {
    transform: translateX(4px);
    color: var(--ember);
  }

  @media (min-width: 768px) {
    .catalog-num {
      font-size: 2rem;
      min-width: 64px;
    }

    .catalog-item {
      padding: 28px 16px;
    }
  }

  /* 精选卡片 */
  .featured-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
  }

  @media (min-width: 640px) {
    .featured-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (min-width: 1024px) {
    .featured-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
  }

  .card {
    background: var(--card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    display: block;
  }

  .card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
  }

  .card-img-wrap {
    overflow: hidden;
    position: relative;
    border-radius: 12px 12px 0 0;
  }

  .card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
  }

  .card:hover .card-img {
    transform: scale(1.03);
  }

  .card-body {
    padding: 20px 20px 24px;
  }

  .card-tag {
    display: inline-block;
    background: #F0EEE9;
    color: var(--body);
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
    transition: background 0.25s ease, color 0.25s ease;
  }

  .card:hover .card-tag {
    background: var(--ember);
    color: #fff;
  }

  .card-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--body);
    line-height: 1.4;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.25s ease;
  }

  .card:hover .card-title {
    color: var(--ember);
  }

  .card-excerpt {
    font-size: 0.8125rem;
    color: var(--sub);
    line-height: 1.6;
    margin: 0 0 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--faint);
  }

  .card-arrow {
    font-size: 0.9rem;
    transition: transform 0.3s ease;
  }

  .card:hover .card-arrow {
    transform: translateX(4px);
    color: var(--ember);
  }

  /* CMS 列表区域 */
  .cms-list-wrap {
    background: var(--ink);
    border-radius: 16px;
    padding: 40px 32px;
    color: #F7F5F2;
    position: relative;
    overflow: hidden;
  }

  @media (min-width: 768px) {
    .cms-list-wrap {
      padding: 56px 48px;
    }
  }

  .cms-list-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #F7F5F2;
    margin: 0 0 8px;
  }

  .cms-list-sub {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    margin: 0 0 32px;
  }

  .cms-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4px 20px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    transition: padding-left 0.3s ease, background 0.3s ease;
    align-items: start;
  }

  .cms-row:last-of-type {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .cms-row:hover {
    padding-left: 8px;
    background: rgba(255, 255, 255, 0.02);
  }

  @media (min-width: 768px) {
    .cms-row {
      grid-template-columns: 120px 1fr auto;
      align-items: center;
    }
  }

  .cms-tag {
    font-size: 0.6875rem;
    letter-spacing: 0.05em;
    background: rgba(255, 255, 255, 0.12);
    color: #F7F5F2;
    padding: 3px 10px;
    border-radius: 999px;
    display: inline-block;
    justify-self: start;
    transition: background 0.25s ease, color 0.25s ease;
  }

  .cms-row:hover .cms-tag {
    background: var(--ember);
    color: #fff;
  }

  .cms-main {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .cms-title {
    font-size: 1rem;
    font-weight: 600;
    color: #F7F5F2;
    line-height: 1.4;
    display: block;
    transition: color 0.25s ease;
  }

  .cms-row:hover .cms-title {
    color: rgba(255, 255, 255, 0.85);
  }

  .cms-excerpt {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .cms-right {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .cms-date {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    font-family: 'Georgia', serif;
    white-space: nowrap;
  }

  .cms-arrow {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.4);
    transition: transform 0.3s ease, color 0.3s ease;
  }

  .cms-row:hover .cms-arrow {
    transform: translateX(4px);
    color: var(--ember);
  }

  .empty-state {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 40px 0;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.9375rem;
    justify-content: center;
  }

  .empty-icon {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.3);
  }

  /* 数据区 */
  .stats-section {
    background: var(--ink);
    padding: 72px 0;
    color: #F7F5F2;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 24px;
  }

  @media (min-width: 768px) {
    .stats-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  .stat-item {
    text-align: center;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .stat-item.visible {
    opacity: 1;
    transform: translateY(0);
  }

  .stat-num {
    font-family: 'Georgia', serif;
    font-size: 2.6rem;
    font-weight: 600;
    color: #F7F5F2;
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: 0.02em;
  }

  .stat-num span {
    color: var(--ember);
  }

  .stat-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.04em;
  }

  .stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.12);
    margin-top: 16px;
  }

  /* 编辑推荐深色区 */
  .feature-story {
    background: var(--ink);
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
  }

  @media (min-width: 768px) {
    .feature-story {
      grid-template-columns: 1.2fr 1fr;
    }
  }

  .feature-story-img {
    min-height: 280px;
    background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    position: relative;
  }

  .feature-story-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(17, 20, 24, 0.25);
  }

  .feature-story-body {
    padding: 40px 32px;
    color: #F7F5F2;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  @media (min-width: 768px) {
    .feature-story-body {
      padding: 48px 40px;
    }
  }

  .feature-story-body .section-eyebrow {
    color: var(--ember);
  }

  .feature-story-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #F7F5F2;
    margin: 0 0 12px;
    line-height: 1.3;
  }

  .feature-story-desc {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin: 0 0 24px;
  }

  .feature-story-link {
    font-size: 0.875rem;
    color: var(--ember);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }

  .feature-story-link:hover .btn-arrow {
    transform: translateX(4px);
  }

  /* 编辑推荐列表 */
  .edit-picks {
    margin-top: 32px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  @media (min-width: 768px) {
    .edit-picks {
      grid-template-columns: repeat(3, 1fr);
    }
  }

  .pick-item {
    background: #F0EEE9;
    border-radius: 10px;
    padding: 20px;
    display: block;
    transition: background 0.25s ease, transform 0.25s ease;
    border: 1px solid transparent;
  }

  .pick-item:hover {
    background: #fff;
    border-color: var(--line);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
  }

  .pick-num {
    font-family: 'Georgia', serif;
    font-size: 0.75rem;
    color: var(--ember);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 8px;
  }

  .pick-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--body);
    margin: 0 0 4px;
    line-height: 1.4;
  }

  .pick-desc {
    font-size: 0.8125rem;
    color: var(--sub);
    margin: 0;
    line-height: 1.6;
  }

  /* FAQ */
  .faq-wrap {
    max-width: 800px;
    margin: 0 auto;
  }

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

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 8px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--body);
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    transition: color 0.25s ease;
  }

  .faq-question:hover {
    color: var(--ember);
  }

  .faq-icon {
    font-size: 1.2rem;
    color: var(--sub);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 16px;
    font-style: normal;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    color: var(--ember);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .faq-answer p {
    padding: 0 8px 20px;
    font-size: 0.875rem;
    color: var(--sub);
    line-height: 1.7;
    margin: 0;
  }

  /* CTA */
  .cta-zone {
    background: var(--ink);
    border-radius: 16px;
    padding: 64px 32px;
    text-align: center;
    color: #F7F5F2;
    position: relative;
    overflow: hidden;
  }

  @media (min-width: 768px) {
    .cta-zone {
      padding: 80px 48px;
    }
  }

  .cta-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #F7F5F2;
    margin: 0 0 12px;
    line-height: 1.3;
  }

  .cta-desc {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 0 32px;
  }

  .cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
  }

  .btn-dark {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--ink);
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    transition: background 0.3s ease, transform 0.3s ease;
  }

  .btn-dark:hover {
    background: var(--ember);
    color: #fff;
    transform: translateY(-1px);
  }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #F7F5F2;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: border-color 0.3s ease, background 0.3s ease;
  }

  .btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.05);
  }

  /* 页脚 */
  .footer {
    background: var(--ink);
    color: #F7F5F2;
    padding: 56px 0 32px;
    margin-top: 64px;
  }

  @media (min-width: 768px) {
    .footer {
      margin-top: 96px;
    }
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  @media (min-width: 768px) {
    .footer-grid {
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
    }
  }

  .footer-logo {
    font-size: 1.3rem;
    font-weight: 800;
    color: #F7F5F2;
    margin-bottom: 8px;
  }

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

  .footer-desc {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    max-width: 260px;
    margin: 0;
  }

  .footer-title {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin: 0 0 16px;
  }

  .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .footer-links a {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.65);
    transition: color 0.25s ease;
  }

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

  .footer-contact {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
    margin: 0;
  }

  .footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 24px;
    font-size: 0.6875rem;
    color: rgba(255, 255, 255, 0.35);
  }

  @media (min-width: 768px) {
    .footer-bottom {
      flex-direction: row;
      justify-content: space-between;
      align-items: center;
    }
  }

  /* 可访问性 */
  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--ember);
    outline-offset: 2px;
  }

  /* 减少动效 */
  @media (prefers-reduced-motion: reduce) {
    * {
      transition-duration: 0.01ms !important;
      animation-duration: 0.01ms !important;
    }
  }

/* roulang page: category1 */
:root {
  --ink: #111418;
  --accent: #E8502A;
  --accent-dark: #c93e1d;
  --bg: #F7F5F2;
  --card: #fff;
  --text: #1A1D21;
  --text-sub: #5F646B;
  --text-faint: #9CA3AF;
  --line: #E5E1DB;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 4px;
  --shadow: 0 2px 12px rgba(0,0,0,.06);
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: 'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a { text-decoration:none; color:inherit; }
img { max-width:100%; display:block; }
button { font-family:inherit; cursor:pointer; }

/* ===== 侧边导航 ===== */
.sidebar {
  position:fixed; left:0; top:0; width:240px; height:100vh;
  background:var(--ink); color:#F7F5F2;
  display:flex; flex-direction:column;
  z-index:100;
  padding:32px 20px 28px;
}
.sidebar-brand {
  border-bottom:1px solid rgba(255,255,255,.12);
  padding-bottom:24px; margin-bottom:28px;
}
.brand-link { display:inline-block; }
.brand-logo {
  font-size:1.625rem; font-weight:800; letter-spacing:-.02em; color:#fff;
  line-height:1.1;
}
.brand-logo span { color:var(--accent); }
.brand-sub {
  display:block; font-size:.625rem; letter-spacing:.35em;
  color:rgba(255,255,255,.45); margin-top:6px; font-weight:400;
}
.sidebar-nav { flex:1; display:flex; flex-direction:column; gap:6px; }
.nav-item {
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 14px; border-radius:8px;
  color:rgba(255,255,255,.7);
  font-size:.875rem; font-weight:500;
  transition:all .25s ease;
  position:relative;
}
.nav-item:hover { color:#fff; background:rgba(255,255,255,.06); }
.nav-item.active { color:#fff; background:rgba(232,80,42,.14); }
.nav-item.active::before {
  content:''; position:absolute; left:0; top:22%; bottom:22%;
  width:3px; border-radius:3px; background:var(--accent);
}
.nav-item.active .nav-arrow { color:var(--accent); }
.nav-arrow { font-size:.875rem; opacity:.5; transition:transform .25s ease; }
.nav-item:hover .nav-arrow { opacity:1; transform:translateX(3px); }
.sidebar-foot {
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:20px;
  font-size:.6875rem; color:rgba(255,255,255,.35);
  display:flex; flex-direction:column; gap:4px; line-height:1.5;
}
.sidebar-foot .domain { color:rgba(255,255,255,.35); }

/* ===== 主内容 ===== */
.main-content {
  margin-left:240px;
  min-height:100vh;
  display:flex; flex-direction:column;
}

/* Hero */
.hero {
  position:relative;
  background:var(--ink);
  color:#fff;
  min-height:480px;
  display:flex; align-items:center;
  overflow:hidden;
}
.hero-bg {
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  opacity:.32;
}
.hero-bg::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(100deg,rgba(17,20,24,.92) 20%,transparent 75%);
}
.hero-content {
  position:relative; z-index:2;
  padding:0 clamp(24px,5vw,72px);
  max-width:780px;
}
.hero-kicker {
  font-size:.6875rem; letter-spacing:.3em;
  color:var(--accent); text-transform:uppercase;
  margin-bottom:16px; font-weight:600;
}
.hero h1 {
  font-size:clamp(2.25rem,4vw,3.5rem);
  font-weight:800; line-height:1.15;
  letter-spacing:-.02em;
  margin-bottom:10px;
}
.hero h1 .mark { color:var(--accent); }
.hero-bar {
  width:36px; height:3px; background:var(--accent);
  border-radius:2px; margin:20px 0;
}
.hero-sub {
  font-size:1rem; color:rgba(255,255,255,.75);
  max-width:520px; margin-bottom:32px; line-height:1.8;
}
.hero-actions { display:flex; align-items:center; gap:20px; flex-wrap:wrap; }
.btn-primary {
  display:inline-flex; align-items:center; gap:8px;
  background:var(--accent); color:#fff;
  font-size:.875rem; font-weight:600;
  padding:14px 28px; border-radius:8px;
  transition:all .25s ease;
  border:none;
}
.btn-primary:hover { background:var(--accent-dark); }
.btn-primary i { transition:transform .25s ease; }
.btn-primary:hover i { transform:translateX(4px); }
.btn-text {
  color:rgba(255,255,255,.8); font-size:.875rem;
  border-bottom:1px solid rgba(255,255,255,.35);
  padding-bottom:2px; transition:border-color .25s ease,color .25s ease;
}
.btn-text:hover { color:#fff; border-color:var(--accent); }

/* 数据统计 */
.stats-section {
  background:var(--bg);
  padding:64px 0;
}
.stats-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px;
  max-width:1200px; margin:0 auto; padding:0 24px;
}
.stat-item { text-align:center; padding:12px 8px; }
.stat-num {
  font-family:'IBM Plex Mono',Georgia,serif;
  font-size:2.5rem; font-weight:700;
  color:var(--ink); line-height:1.1;
  letter-spacing:-.02em;
}
.stat-item .stat-label {
  margin-top:10px; font-size:.8125rem; color:var(--text-sub);
}

/* 通用区块 */
.section-block { padding:72px 0; }
.section-block.alt { background:var(--bg); }
.container-site { max-width:1200px; margin:0 auto; padding:0 24px; }
.section-head { margin-bottom:48px; }
.section-kicker {
  font-size:.6875rem; letter-spacing:.25em; color:var(--accent);
  text-transform:uppercase; font-weight:600; margin-bottom:12px;
  display:flex; align-items:center; gap:10px;
}
.section-kicker::before {
  content:''; width:24px; height:1px; background:var(--accent);
}
.section-head h2 {
  font-size:clamp(1.5rem,2.5vw,2rem);
  font-weight:700; color:var(--ink);
  line-height:1.25; letter-spacing:-.01em;
}
.section-head .section-desc {
  margin-top:10px; color:var(--text-sub); font-size:.9375rem; max-width:640px;
}

/* 卖点卡片 */
.feature-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px;
}
.feature-card {
  background:var(--card); border-radius:12px;
  padding:28px 24px;
  border:1px solid var(--line);
  transition:box-shadow .3s ease,transform .3s ease;
}
.feature-card:hover {
  box-shadow:var(--shadow);
}
.feature-icon {
  width:48px; height:48px; border-radius:10px;
  background:rgba(232,80,42,.1); color:var(--accent);
  display:flex; align-items:center; justify-content:center;
  font-size:1.25rem; margin-bottom:18px;
}
.feature-card h3 {
  font-size:1.125rem; font-weight:700; color:var(--ink); margin-bottom:8px;
}
.feature-card p { font-size:.875rem; color:var(--text-sub); line-height:1.7; }

/* 精选内容网格 */
.showcase-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.content-card {
  background:var(--card); border-radius:12px; overflow:hidden;
  border:1px solid var(--line);
  transition:box-shadow .3s ease,transform .3s ease;
  display:block;
}
.content-card:hover { box-shadow:var(--shadow); transform:translateY(-2px); }
.cover-wrap { position:relative; aspect-ratio:16/10; overflow:hidden; }
.cover-wrap img {
  width:100%; height:100%; object-fit:cover;
  transition:transform .3s ease;
}
.content-card:hover .cover-wrap img { transform:scale(1.03); }
.cover-tag {
  position:absolute; top:12px; left:12px;
  background:rgba(255,255,255,.92); color:var(--ink);
  font-size:.6875rem; font-weight:600;
  padding:4px 12px; border-radius:999px;
  letter-spacing:.04em;
}
.card-body { padding:20px 22px 22px; }
.card-title {
  font-size:1.0625rem; font-weight:700; color:var(--ink); line-height:1.45;
  margin-bottom:8px;
}
.card-excerpt {
  font-size:.8125rem; color:var(--text-sub); line-height:1.65;
  margin-bottom:14px;
}
.card-meta {
  display:flex; align-items:center; justify-content:space-between;
  font-size:.75rem; color:var(--text-faint);
}

/* 场景区 */
.scenario-grid {
  display:grid; grid-template-columns:repeat(2,1fr); gap:20px;
}
.scenario-item {
  display:flex; gap:18px; background:var(--card);
  padding:24px; border-radius:12px; border:1px solid var(--line);
}
.scenario-item .num {
  font-family:'IBM Plex Mono',Georgia,serif;
  font-size:1.625rem; color:var(--accent); font-weight:700;
  line-height:1; min-width:40px;
}
.scenario-item h3 { font-size:1.0625rem; font-weight:700; margin-bottom:6px; }
.scenario-item p { font-size:.875rem; color:var(--text-sub); line-height:1.65; }

/* 流程区 */
.process-list { max-width:760px; margin:0 auto; }
.process-step {
  display:flex; gap:28px; padding:28px 0;
  border-bottom:1px solid var(--line);
  position:relative;
}
.process-step:last-child { border-bottom:none; }
.process-num {
  font-family:'IBM Plex Mono',Georgia,serif;
  font-size:1.875rem; font-weight:700; color:transparent;
  -webkit-text-stroke:1px var(--accent);
  min-width:56px; line-height:1;
}
.process-body h3 { font-size:1.125rem; font-weight:700; margin-bottom:6px; }
.process-body p { font-size:.875rem; color:var(--text-sub); line-height:1.7; }

/* FAQ */
.faq-list { max-width:820px; margin:0 auto; }
.faq-item { border-bottom:1px solid var(--line); }
.faq-q {
  width:100%; background:none; border:none;
  display:flex; justify-content:space-between; align-items:center;
  padding:22px 4px; font-size:1rem; font-weight:600; color:var(--ink);
  text-align:left; transition:color .2s ease;
}
.faq-q:hover { color:var(--accent); }
.faq-q .icon {
  font-size:1.2rem; font-weight:300; transition:transform .3s ease;
  color:var(--accent); flex-shrink:0; width:24px; text-align:center;
}
.faq-item.open .faq-q .icon { transform:rotate(45deg); }
.faq-a {
  max-height:0; overflow:hidden; transition:max-height .3s ease;
  padding:0 4px;
}
.faq-item.open .faq-a {
  max-height:300px; padding:0 4px 22px;
}
.faq-a p { font-size:.875rem; color:var(--text-sub); line-height:1.75; }

/* CTA */
.cta-section {
  background:var(--ink); color:#fff;
  padding:80px 0; text-align:center;
  position:relative;
}
.cta-bg {
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  opacity:.18;
}
.cta-inner { position:relative; z-index:2; }
.cta-inner h2 {
  font-size:clamp(1.5rem,3vw,2.25rem); font-weight:800; margin-bottom:12px;
}
.cta-inner p { color:rgba(255,255,255,.7); margin-bottom:32px; font-size:.9375rem; }
.cta-actions { display:flex; justify-content:center; gap:16px; flex-wrap:wrap; }
.btn-secondary {
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(255,255,255,.06); color:#fff;
  border:1px solid rgba(255,255,255,.2);
  font-size:.875rem; font-weight:600;
  padding:14px 28px; border-radius:8px;
  transition:all .25s ease;
}
.btn-secondary:hover { background:rgba(255,255,255,.14); border-color:var(--accent); }
.cta-note { margin-top:24px; font-size:.75rem; color:rgba(255,255,255,.4); }

/* 页脚 */
.footer {
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:56px 0 28px;
}
.footer-grid {
  display:grid; grid-template-columns:2fr 1fr 1fr; gap:40px;
  max-width:1200px; margin:0 auto; padding:0 24px;
}
.footer-logo { font-size:1.375rem; font-weight:800; color:var(--ink); }
.footer-logo span { color:var(--accent); }
.footer-desc { font-size:.8125rem; color:var(--text-sub); margin-top:10px; line-height:1.7; max-width:280px; }
.footer-title {
  font-size:.8125rem; font-weight:700; color:var(--ink);
  margin-bottom:14px; letter-spacing:.05em;
}
.footer-links { list-style:none; display:flex; flex-direction:column; gap:8px; }
.footer-links a {
  font-size:.8125rem; color:var(--text-sub);
  transition:color .2s ease;
}
.footer-links a:hover { color:var(--accent); }
.footer-contact { font-size:.8125rem; color:var(--text-sub); }
.footer-bottom {
  max-width:1200px; margin:0 auto; padding:24px 24px 0;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
  border-top:1px solid var(--line); margin-top:44px;
  font-size:.75rem; color:var(--text-faint);
}

/* 移动端菜单按钮 */
.menu-toggle {
  display:none; position:fixed; top:18px; right:18px;
  z-index:300; width:44px; height:44px;
  background:var(--ink); border:none; border-radius:8px;
  flex-direction:column; align-items:center; justify-content:center; gap:4px;
}
.menu-toggle span {
  width:20px; height:2px; background:#fff;
  transition:all .3s ease;
}
.menu-toggle.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.menu-toggle.open span:nth-child(2){ opacity:0; }
.menu-toggle.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* 移动抽屉 */
.mobile-menu {
  position:fixed; top:0; left:0; width:100%; height:100vh;
  background:var(--ink); z-index:200;
  transform:translateX(-100%);
  transition:transform .3s ease;
  display:flex; flex-direction:column;
  padding:80px 32px 32px;
}
.mobile-menu.open { transform:translateX(0); }
.mobile-menu .nav-item {
  font-size:1.5rem; padding:16px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.8);
}
.mobile-menu .nav-item.active { color:var(--accent); background:transparent; }
.mobile-menu .nav-item.active::before { display:none; }
.mobile-menu .nav-arrow { display:none; }

/* 响应式 */
@media (max-width:1023px) {
  .sidebar { width:64px; padding:24px 12px; }
  .brand-logo { font-size:1rem; display:block; text-align:center; }
  .brand-logo span { display:block; }
  .brand-sub { display:none; }
  .sidebar-nav .nav-item span:first-child { display:none; }
  .sidebar-nav .nav-item { justify-content:center; padding:14px 0; }
  .nav-arrow { display:none; }
  .sidebar-foot { font-size:.5rem; text-align:center; }
  .main-content { margin-left:64px; }
  .feature-grid { grid-template-columns:repeat(2,1fr); }
}

@media (max-width:767px) {
  .sidebar { display:none; }
  .menu-toggle { display:flex; }
  .main-content { margin-left:0; }
  .hero { min-height:400px; }
  .hero-content { padding:0 24px; }
  .hero h1 { font-size:2rem; }
  .stats-grid { grid-template-columns:repeat(2,1fr); gap:16px; padding:0 16px; }
  .section-block { padding:48px 0; }
  .container-site { padding:0 16px; }
  .feature-grid { grid-template-columns:1fr; }
  .showcase-grid { grid-template-columns:1fr; }
  .scenario-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:28px; padding:0 16px; }
  .footer-bottom { padding:20px 16px 0; }
  .cta-actions { flex-direction:column; align-items:center; }
  .btn-primary, .btn-secondary { width:100%; justify-content:center; }
}

@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after {
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
  }
}

/* roulang page: article */
:root {
  --color-primary: #111418;
  --color-accent: #E8502A;
  --color-bg: #F7F5F2;
  --color-card: #FFFFFF;
  --color-text: #1A1D21;
  --color-text-secondary: #6B7280;
  --color-text-muted: #9CA3AF;
  --color-border: #E5E1DB;
  --color-hover-bg: #F0EEE9;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 4px;
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
  --font-sans: 'Noto Sans SC', 'Source Han Sans', 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Georgia', serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
ul, ol {
  list-style: none;
}
.container-site {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.app-shell {
  min-height: 100vh;
}
.sidebar-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 250px;
  height: 100vh;
  background: var(--color-primary);
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
  z-index: 100;
  transition: transform 0.3s ease;
}
.sidebar-brand {
  display: flex;
  flex-direction: column;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 28px;
}
.brand-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.02em;
}
.brand-name span {
  color: var(--color-accent);
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.35em;
  margin-top: 4px;
}
.nav-links {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.875rem;
  font-weight: 500;
  position: relative;
  transition: background 0.2s ease, color 0.2s ease, padding-left 0.3s ease;
}
.nav-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #FFFFFF;
  padding-left: 20px;
}
.nav-item.active {
  color: #FFFFFF;
  background: rgba(232, 80, 42, 0.15);
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--color-accent);
  border-radius: 0 4px 4px 0;
}
.nav-item.active .nav-arrow {
  color: var(--color-accent);
}
.nav-arrow {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.25);
  transition: transform 0.2s ease;
}
.nav-item:hover .nav-arrow {
  transform: translateX(3px);
  color: var(--color-accent);
}
.sidebar-footer {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.3);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mobile-topbar {
  display: none;
}
.main-content {
  margin-left: 250px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 40px 0 8px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}
.breadcrumb a {
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--color-accent);
}
.breadcrumb .sep {
  color: var(--color-text-muted);
  font-size: 0.75rem;
}
.breadcrumb-current {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text);
  font-weight: 500;
}
.article-header {
  padding: 32px 0 12px;
}
.article-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-text);
  max-width: 900px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}
.meta-item i {
  color: var(--color-accent);
  font-size: 0.75rem;
}
.meta-divider {
  width: 1px;
  height: 14px;
  background: var(--color-border);
}
.category-badge {
  display: inline-block;
  background: var(--color-hover-bg);
  color: var(--color-text);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  transition: background 0.2s ease, color 0.2s ease;
}
.category-badge:hover {
  background: var(--color-accent);
  color: #FFFFFF;
}
.article-cover {
  margin: 28px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.article-cover img {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
}
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 0 40px;
}
.article-body p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 1.4rem;
}
.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 3rem 0 1rem;
  color: var(--color-text);
  padding-top: 0.5rem;
}
.article-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 2rem 0 0.75rem;
  color: var(--color-text);
}
.article-body blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 0.25rem 0 0.25rem 1.25rem;
  margin: 2rem 0;
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.article-body ul, .article-body ol {
  margin: 1.25rem 0;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-text);
}
.article-body ul {
  list-style: disc;
}
.article-body ol {
  list-style: decimal;
}
.article-body li {
  margin-bottom: 0.4rem;
}
.article-body img {
  border-radius: var(--radius-lg);
  margin: 2rem 0;
  width: 100%;
  height: auto;
}
.article-body a {
  color: var(--color-accent);
  border-bottom: 1px solid rgba(232, 80, 42, 0.3);
  transition: border-color 0.2s ease;
}
.article-body a:hover {
  border-color: var(--color-accent);
}
.article-tags-share {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  display: inline-block;
  background: var(--color-hover-bg);
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: 0.03em;
  transition: background 0.2s ease, color 0.2s ease;
}
.tag:hover {
  background: var(--color-accent);
  color: #FFFFFF;
}
.article-share {
  display: flex;
  gap: 8px;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-hover-bg);
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.share-btn:hover {
  background: var(--color-accent);
  color: #FFFFFF;
  transform: translateY(-2px);
}
.related-section {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 0 24px;
}
.related-section .section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  display: block;
}
.related-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.related-card:hover .related-card-title {
  color: var(--color-accent);
}
.related-card-img {
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.related-card:hover .related-card-img img {
  transform: scale(1.03);
}
.related-card-content {
  padding: 16px 16px 18px;
}
.related-card-cat {
  font-size: 0.6875rem;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.related-card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-top: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}
.cta-section {
  position: relative;
  margin: 56px 0 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-size: cover;
  background-position: center;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(17, 20, 24, 0.82);
}
.cta-content {
  position: relative;
  z-index: 1;
  padding: 48px 32px;
  color: #FFFFFF;
  max-width: 560px;
}
.cta-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.cta-desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
}
.cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #FFFFFF;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  transition: background 0.2s ease, transform 0.2s ease;
}
.btn-primary:hover {
  background: #D1482A;
  transform: translateY(-1px);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #FFFFFF;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.btn-secondary:hover {
  border-color: var(--color-accent);
  background: rgba(232, 80, 42, 0.12);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin: 0 auto 48px;
  padding: 8px 0;
  transition: color 0.2s ease, gap 0.2s ease;
  max-width: 720px;
}
.back-link:hover {
  color: var(--color-accent);
  gap: 12px;
}
.not-found {
  max-width: 720px;
  margin: 80px auto;
  text-align: center;
  padding: 60px 24px;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.not-found i {
  font-size: 2.5rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.not-found h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}
.not-found p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}
.not-found .btn-primary {
  display: inline-flex;
}
.footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.6);
  margin-top: auto;
  padding: 56px 0 32px;
}
.footer .container-site {
  max-width: 1200px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 8px;
}
.footer-logo span {
  color: var(--color-accent);
}
.footer-desc {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
  max-width: 260px;
}
.footer-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--color-accent);
}
.footer-contact {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.3);
}
@media (max-width: 1024px) {
  .main-content {
    margin-left: 72px;
  }
  .sidebar-nav {
    width: 72px;
    padding: 24px 12px;
  }
  .sidebar-brand {
    padding-bottom: 24px;
  }
  .brand-name {
    font-size: 1rem;
    text-align: center;
  }
  .brand-sub {
    display: none;
  }
  .nav-item {
    justify-content: center;
    padding: 14px 8px;
    font-size: 0;
  }
  .nav-item span:first-child {
    font-size: 0.6875rem;
    writing-mode: vertical-rl;
    letter-spacing: 0.05em;
  }
  .nav-item:hover {
    padding-left: 8px;
  }
  .nav-arrow {
    display: none;
  }
  .sidebar-footer {
    align-items: center;
    font-size: 0.5625rem;
    text-align: center;
  }
}
@media (max-width: 768px) {
  .mobile-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--color-primary);
    padding: 0 20px;
    z-index: 200;
  }
  .mobile-logo {
    font-size: 1.125rem;
    font-weight: 800;
    color: #FFFFFF;
  }
  .mobile-logo span {
    color: var(--color-accent);
  }
  .menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
  }
  .menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: #FFFFFF;
    border-radius: 2px;
    transition: all 0.3s ease;
  }
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .sidebar-nav {
    width: 280px;
    transform: translateX(-100%);
    padding: 80px 24px 32px;
  }
  .sidebar-nav.open {
    transform: translateX(0);
  }
  .sidebar-nav.open + .mobile-topbar .menu-toggle span {
    background: #FFFFFF;
  }
  .brand-name {
    font-size: 1.5rem;
    text-align: left;
  }
  .brand-sub {
    display: block;
  }
  .nav-item {
    justify-content: space-between;
    padding: 14px 16px;
    font-size: 0.875rem;
  }
  .nav-item span:first-child {
    writing-mode: horizontal-tb;
    font-size: 0.875rem;
  }
  .nav-arrow {
    display: block;
  }
  .main-content {
    margin-left: 0;
    padding-top: 60px;
  }
  .sidebar-footer {
    align-items: flex-start;
    font-size: 0.6875rem;
    text-align: left;
  }
  .container-site {
    padding: 0 16px;
  }
  .breadcrumb {
    padding-top: 24px;
    font-size: 0.75rem;
  }
  .article-title {
    font-size: 1.625rem;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cta-section {
    min-height: 240px;
    margin: 40px 0 32px;
  }
  .cta-content {
    padding: 36px 20px;
  }
  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-primary, .btn-secondary {
    justify-content: center;
  }
  .article-tags-share {
    flex-direction: column;
    align-items: flex-start;
  }
  .back-link {
    margin-bottom: 32px;
  }
}
@media (max-width: 520px) {
  .article-title {
    font-size: 1.375rem;
  }
  .article-meta {
    gap: 8px;
  }
  .meta-divider {
    display: none;
  }
  .article-body {
    padding: 32px 0 28px;
  }
  .article-body p {
    font-size: 0.875rem;
  }
  .related-card-title {
    font-size: 0.875rem;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category2 */
:root{
    --ink:#111418;
    --ember:#E8502A;
    --cream:#F7F5F2;
    --paper:#FFFFFF;
    --body:#1A1D21;
    --muted:#5F646B;
    --faint:#9CA3AF;
    --line:#E5E1DB;
    --radius-card:12px;
    --radius-btn:8px;
    --shadow-card:0 2px 12px rgba(0,0,0,0.06);
    --font-sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
    --font-mono:'IBM Plex Mono',Georgia,serif;
  }
  *{
    box-sizing:border-box;
    margin:0;
    padding:0;
  }
  html{
    scroll-behavior:smooth;
  }
  body{
    font-family:var(--font-sans);
    background:var(--cream);
    color:var(--body);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  a{
    text-decoration:none;
    color:inherit;
  }
  img{
    display:block;
    max-width:100%;
  }
  button,input{
    font-family:inherit;
  }
  .container-site{
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
  }
  @media(max-width:768px){
    .container-site{
      padding:0 16px;
    }
  }

  /* ===== App Shell Layout ===== */
  .app-shell{
    display:flex;
    min-height:100vh;
  }
  .sidebar{
    width:230px;
    position:fixed;
    top:0;
    left:0;
    height:100vh;
    background:var(--ink);
    color:#F7F5F2;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    padding:36px 20px 28px 20px;
    z-index:40;
    border-right:1px solid rgba(255,255,255,0.06);
  }
  .sidebar-logo{
    margin-bottom:48px;
  }
  .sidebar-logo a{
    display:inline-block;
  }
  .logo-mark{
    font-size:1.625rem;
    font-weight:800;
    letter-spacing:-0.01em;
    line-height:1.1;
    color:#F7F5F2;
  }
  .logo-mark span{
    color:var(--ember);
  }
  .logo-sub{
    display:block;
    font-size:0.6875rem;
    letter-spacing:0.22em;
    color:rgba(247,245,242,0.5);
    margin-top:4px;
    font-weight:400;
  }
  .sidebar-nav{
    display:flex;
    flex-direction:column;
    gap:4px;
    flex:1;
  }
  .nav-item{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:13px 12px;
    font-size:0.9375rem;
    color:rgba(247,245,242,0.72);
    border-left:2px solid transparent;
    transition:all 0.28s ease;
    position:relative;
    border-radius:4px 0 0 4px;
  }
  .nav-item:hover{
    color:#FFFFFF;
    background:rgba(255,255,255,0.04);
  }
  .nav-item.active{
    color:#FFFFFF;
    border-left-color:var(--ember);
    background:rgba(232,80,42,0.08);
  }
  .nav-item.active .nav-arrow{
    color:var(--ember);
  }
  .nav-arrow{
    font-size:0.875rem;
    opacity:0.5;
    transition:all 0.28s ease;
  }
  .nav-item:hover .nav-arrow{
    opacity:1;
    transform:translateX(3px);
    color:var(--ember);
  }
  .sidebar-bottom{
    border-top:1px solid rgba(247,245,242,0.1);
    padding-top:16px;
  }
  .sidebar-copy{
    font-size:0.6875rem;
    color:rgba(247,245,242,0.35);
    line-height:1.6;
  }
  .main-content{
    flex:1;
    margin-left:230px;
    min-width:0;
  }
  @media(max-width:1023px){
    .sidebar{
      width:64px;
      padding:28px 12px 22px 12px;
    }
    .logo-mark{
      font-size:1.125rem;
    }
    .logo-sub{
      display:none;
    }
    .nav-item span:first-child{
      display:none;
    }
    .nav-item{
      justify-content:center;
      padding:14px 6px;
      font-size:0.875rem;
    }
    .nav-arrow{
      display:none;
    }
    .sidebar-copy{
      font-size:0.5625rem;
      text-align:center;
      line-height:1.4;
      word-break:break-all;
    }
    .main-content{
      margin-left:64px;
    }
  }
  @media(max-width:767px){
    .app-shell{
      flex-direction:column;
    }
    .sidebar{
      position:fixed;
      top:0;
      left:0;
      width:100%;
      height:auto;
      flex-direction:row;
      align-items:center;
      justify-content:space-between;
      padding:14px 20px;
      z-index:50;
      border-bottom:1px solid rgba(255,255,255,0.08);
    }
    .sidebar-logo{
      margin-bottom:0;
    }
    .sidebar-nav{
      display:none;
    }
    .sidebar-bottom{
      display:none;
    }
    .main-content{
      margin-left:0;
      margin-top:60px;
    }
    .mobile-nav-toggle{
      display:flex;
      align-items:center;
      justify-content:center;
      width:38px;
      height:38px;
      background:rgba(255,255,255,0.08);
      border:1px solid rgba(255,255,255,0.14);
      border-radius:6px;
      cursor:pointer;
      color:#F7F5F2;
      font-size:1rem;
    }
  }
  .mobile-nav-toggle{
    display:none;
  }
  @media(max-width:767px){
    .mobile-nav-toggle{
      display:flex;
    }
  }
  .mobile-drawer{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100vh;
    background:var(--ink);
    z-index:60;
    padding:80px 32px 40px 32px;
    display:none;
    flex-direction:column;
    overflow-y:auto;
  }
  .mobile-drawer.open{
    display:flex;
  }
  .mobile-drawer .close-drawer{
    position:absolute;
    top:20px;
    right:24px;
    width:38px;
    height:38px;
    background:rgba(255,255,255,0.08);
    border:1px solid rgba(255,255,255,0.14);
    border-radius:50%;
    cursor:pointer;
    color:#F7F5F2;
    font-size:1rem;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .mobile-drawer .drawer-nav{
    display:flex;
    flex-direction:column;
    gap:8px;
    margin-top:20px;
  }
  .mobile-drawer .drawer-nav a{
    font-size:1.5rem;
    font-weight:600;
    color:rgba(247,245,242,0.85);
    padding:14px 0;
    border-bottom:1px solid rgba(247,245,242,0.12);
    transition:color 0.2s ease;
  }
  .mobile-drawer .drawer-nav a:hover,
  .mobile-drawer .drawer-nav a.active{
    color:var(--ember);
  }
  .drawer-logo{
    font-size:1.375rem;
    font-weight:800;
    color:#F7F5F2;
  }
  .drawer-logo span{
    color:var(--ember);
  }
  .drawer-copy{
    margin-top:auto;
    font-size:0.75rem;
    color:rgba(247,245,242,0.35);
  }

  /* ===== Common Hero ===== */
  .category-hero{
    background:var(--ink);
    color:#F7F5F2;
    padding:80px 0 72px 0;
    position:relative;
    overflow:hidden;
  }
  .category-hero .hero-bg{
    position:absolute;
    top:0;
    right:0;
    width:42%;
    height:100%;
    object-fit:cover;
    opacity:0.34;
    z-index:0;
  }
  .category-hero .hero-inner{
    position:relative;
    z-index:2;
    max-width:720px;
  }
  .category-hero .hero-kicker{
    font-size:0.75rem;
    letter-spacing:0.18em;
    color:var(--ember);
    font-weight:600;
    text-transform:uppercase;
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-bottom:20px;
  }
  .category-hero .hero-kicker::before{
    content:"";
    width:28px;
    height:2px;
    background:var(--ember);
    display:inline-block;
  }
  .category-hero h1{
    font-size:3.25rem;
    font-weight:800;
    line-height:1.15;
    letter-spacing:-0.02em;
    margin-bottom:20px;
  }
  .category-hero .hero-desc{
    font-size:1rem;
    color:rgba(247,245,242,0.65);
    line-height:1.8;
    max-width:560px;
  }
  .category-hero .hero-bar{
    width:36px;
    height:3px;
    background:var(--ember);
    margin:32px 0 0 0;
  }
  @media(max-width:767px){
    .category-hero{
      padding:52px 0 52px 0;
    }
    .category-hero .hero-bg{
      width:100%;
      opacity:0.22;
    }
    .category-hero h1{
      font-size:2.2rem;
    }
    .category-hero .hero-desc{
      font-size:0.9375rem;
    }
  }

  /* ===== Section common ===== */
  .section-block{
    padding:96px 0;
  }
  @media(max-width:767px){
    .section-block{
      padding:64px 0;
    }
  }
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    margin-bottom:48px;
    gap:24px;
    flex-wrap:wrap;
  }
  .section-head .section-num{
    font-family:var(--font-mono);
    font-size:0.8125rem;
    color:var(--ember);
    letter-spacing:0.1em;
    margin-bottom:6px;
    display:block;
  }
  .section-head h2{
    font-size:1.75rem;
    font-weight:700;
    letter-spacing:-0.01em;
    line-height:1.3;
    color:var(--ink);
  }
  .section-head .section-more{
    font-size:0.875rem;
    color:var(--muted);
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:color 0.2s ease, gap 0.2s ease;
  }
  .section-head .section-more:hover{
    color:var(--ember);
    gap:10px;
  }

  /* ===== Feature Cards ===== */
  .feature-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
  }
  @media(max-width:1023px){
    .feature-grid{
      grid-template-columns:repeat(2,1fr);
    }
  }
  @media(max-width:620px){
    .feature-grid{
      grid-template-columns:1fr;
    }
  }
  .feature-card{
    background:var(--paper);
    border-radius:var(--radius-card);
    overflow:hidden;
    border:1px solid rgba(229,225,219,0.5);
    transition:transform 0.3s ease, box-shadow 0.3s ease;
  }
  .feature-card:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-card);
  }
  .feature-card .card-img{
    position:relative;
    overflow:hidden;
    aspect-ratio:16/10;
  }
  .feature-card .card-img img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform 0.3s ease;
  }
  .feature-card:hover .card-img img{
    transform:scale(1.03);
  }
  .feature-card .card-body{
    padding:20px 22px 22px 22px;
  }
  .feature-card .card-tag{
    display:inline-block;
    background:#F0EEE9;
    color:#3A3F44;
    font-size:0.6875rem;
    font-weight:500;
    border-radius:var(--radius-pill);
    padding:4px 12px;
    letter-spacing:0.05em;
    margin-bottom:12px;
    transition:background 0.2s ease, color 0.2s ease;
  }
  .feature-card:hover .card-tag{
    background:var(--ember);
    color:#FFFFFF;
  }
  .feature-card h3{
    font-size:1.125rem;
    font-weight:700;
    line-height:1.4;
    margin-bottom:8px;
    color:var(--ink);
    transition:color 0.2s ease;
  }
  .feature-card:hover h3{
    color:var(--ember);
  }
  .feature-card .card-desc{
    font-size:0.8125rem;
    color:var(--muted);
    line-height:1.7;
    margin-bottom:14px;
  }
  .feature-card .card-meta{
    display:flex;
    align-items:center;
    justify-content:space-between;
    border-top:1px solid #F0EEE9;
    padding-top:12px;
  }
  .feature-card .card-date{
    font-size:0.75rem;
    color:var(--faint);
  }

  /* ===== Story / Editorial Section ===== */
  .story-section{
    background:var(--paper);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .story-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:56px;
    align-items:center;
  }
  @media(max-width:767px){
    .story-row{
      grid-template-columns:1fr;
      gap:32px;
    }
  }
  .story-img{
    border-radius:var(--radius-card);
    overflow:hidden;
    position:relative;
    aspect-ratio:4/3;
  }
  .story-img img{
    width:100%;
    height:100%;
    object-fit:cover;
  }
  .story-content{
    max-width:480px;
  }
  .story-content .story-num{
    font-family:var(--font-mono);
    font-size:0.75rem;
    color:var(--ember);
    letter-spacing:0.1em;
    display:block;
    margin-bottom:12px;
  }
  .story-content h2{
    font-size:1.75rem;
    font-weight:700;
    line-height:1.3;
    color:var(--ink);
    margin-bottom:16px;
  }
  .story-content p{
    font-size:0.9375rem;
    color:var(--muted);
    line-height:1.8;
    margin-bottom:16px;
  }
  .story-content .story-points{
    list-style:none;
    margin:20px 0 0 0;
    padding:0;
  }
  .story-content .story-points li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:0.875rem;
    color:var(--body);
    padding:8px 0;
    border-bottom:1px solid #F0EEE9;
  }
  .story-content .story-points li:last-child{
    border-bottom:none;
  }
  .story-content .story-points li::before{
    content:"";
    width:6px;
    height:6px;
    background:var(--ember);
    border-radius:50%;
    flex-shrink:0;
    margin-top:7px;
  }

  /* ===== Number Stats ===== */
  .stats-section{
    background:var(--ink);
    color:#F7F5F2;
    padding:72px 0;
  }
  .stats-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:32px;
  }
  @media(max-width:767px){
    .stats-grid{
      grid-template-columns:repeat(2,1fr);
      gap:40px 24px;
    }
  }
  .stat-item{
    text-align:left;
    border-left:2px solid rgba(232,80,42,0.6);
    padding-left:20px;
  }
  .stat-item .stat-number{
    font-family:var(--font-mono);
    font-size:2.5rem;
    font-weight:700;
    color:#FFFFFF;
    line-height:1.1;
    letter-spacing:-0.02em;
  }
  .stat-item .stat-label{
    font-size:0.8125rem;
    color:rgba(247,245,242,0.6);
    margin-top:6px;
    line-height:1.5;
  }

  /* ===== Timeline / Process ===== */
  .process-section{
    background:var(--cream);
  }
  .process-steps{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:32px;
    counter-reset:step;
  }
  @media(max-width:767px){
    .process-steps{
      grid-template-columns:1fr;
      gap:24px;
    }
  }
  .process-step{
    background:var(--paper);
    border-radius:var(--radius-card);
    padding:28px;
    border:1px solid rgba(229,225,219,0.6);
    transition:transform 0.3s ease, box-shadow 0.3s ease;
  }
  .process-step:hover{
    transform:translateY(-3px);
    box-shadow:var(--shadow-card);
  }
  .process-step .step-num{
    font-family:var(--font-mono);
    font-size:2rem;
    font-weight:700;
    color:var(--ember);
    line-height:1;
    margin-bottom:16px;
  }
  .process-step h3{
    font-size:1.0625rem;
    font-weight:700;
    color:var(--ink);
    margin-bottom:10px;
  }
  .process-step p{
    font-size:0.875rem;
    color:var(--muted);
    line-height:1.7;
  }

  /* ===== FAQ ===== */
  .faq-section{
    background:var(--paper);
    border-top:1px solid var(--line);
  }
  .faq-list{
    max-width:760px;
    margin:0 auto;
  }
  .faq-item{
    border-bottom:1px solid var(--line);
  }
  .faq-item summary{
    list-style:none;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:22px 4px;
    cursor:pointer;
    font-size:0.9375rem;
    font-weight:600;
    color:var(--body);
    transition:color 0.2s ease;
  }
  .faq-item summary:hover{
    color:var(--ember);
  }
  .faq-item summary::-webkit-details-marker{
    display:none;
  }
  .faq-item .faq-icon{
    font-family:var(--font-mono);
    font-size:1.25rem;
    color:var(--ember);
    transition:transform 0.25s ease;
    flex-shrink:0;
  }
  .faq-item[open] .faq-icon{
    transform:rotate(45deg);
  }
  .faq-item .faq-answer{
    padding:0 24px 22px 4px;
    font-size:0.875rem;
    color:var(--muted);
    line-height:1.8;
  }

  /* ===== CTA ===== */
  .cta-section{
    background:var(--ink);
    color:#F7F5F2;
    padding:88px 0;
    position:relative;
    overflow:hidden;
  }
  .cta-section .cta-bg{
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
    object-fit:cover;
    opacity:0.18;
    z-index:0;
  }
  .cta-section .cta-inner{
    position:relative;
    z-index:2;
    text-align:center;
    max-width:640px;
    margin:0 auto;
  }
  .cta-section h2{
    font-size:2rem;
    font-weight:800;
    letter-spacing:-0.01em;
    margin-bottom:14px;
  }
  .cta-section p{
    font-size:0.9375rem;
    color:rgba(247,245,242,0.65);
    line-height:1.7;
    margin-bottom:32px;
  }
  .cta-buttons{
    display:flex;
    gap:14px;
    justify-content:center;
    flex-wrap:wrap;
  }
  .btn-primary{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:var(--ember);
    color:#FFFFFF;
    font-size:0.875rem;
    font-weight:600;
    padding:14px 30px;
    border-radius:var(--radius-btn);
    transition:background 0.25s ease, transform 0.25s ease, gap 0.25s ease;
  }
  .btn-primary:hover{
    background:#cf4522;
    gap:12px;
  }
  .btn-secondary{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:transparent;
    color:#F7F5F2;
    font-size:0.875rem;
    font-weight:500;
    padding:14px 30px;
    border-radius:var(--radius-btn);
    border:1px solid rgba(247,245,242,0.4);
    transition:all 0.25s ease;
  }
  .btn-secondary:hover{
    border-color:var(--ember);
    color:var(--ember);
  }

  /* ===== Notes / related links ===== */
  .related-section{
    padding:72px 0 8px 0;
  }
  .related-links{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
    justify-content:center;
  }
  .related-links a{
    font-size:0.8125rem;
    color:var(--muted);
    border:1px solid var(--line);
    padding:8px 18px;
    border-radius:var(--radius-pill);
    transition:all 0.2s ease;
    display:inline-flex;
    align-items:center;
    gap:6px;
  }
  .related-links a:hover{
    border-color:var(--ember);
    color:var(--ember);
  }

  /* ===== Footer ===== */
  .footer{
    background:var(--ink);
    color:rgba(247,245,242,0.7);
    padding:64px 0 28px 0;
    margin-top:40px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr;
    gap:48px;
    padding-bottom:40px;
    border-bottom:1px solid rgba(247,245,242,0.08);
  }
  @media(max-width:767px){
    .footer-grid{
      grid-template-columns:1fr;
      gap:32px;
    }
  }
  .footer-logo{
    font-size:1.375rem;
    font-weight:800;
    color:#F7F5F2;
    line-height:1.2;
  }
  .footer-logo span{
    color:var(--ember);
  }
  .footer-desc{
    font-size:0.8125rem;
    color:rgba(247,245,242,0.45);
    margin-top:8px;
    line-height:1.6;
    max-width:260px;
  }
  .footer-title{
    font-size:0.8125rem;
    font-weight:600;
    color:rgba(247,245,242,0.9);
    margin-bottom:14px;
    letter-spacing:0.04em;
  }
  .footer-links{
    list-style:none;
    padding:0;
    margin:0;
  }
  .footer-links li{
    margin-bottom:8px;
  }
  .footer-links a{
    font-size:0.8125rem;
    color:rgba(247,245,242,0.55);
    transition:color 0.2s ease;
  }
  .footer-links a:hover{
    color:var(--ember);
  }
  .footer-contact{
    font-size:0.8125rem;
    color:rgba(247,245,242,0.55);
  }
  .footer-bottom{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:8px;
    padding-top:24px;
    font-size:0.6875rem;
    color:rgba(247,245,242,0.32);
  }
  @media(max-width:767px){
    .footer-bottom{
      flex-direction:column;
      align-items:flex-start;
    }
  }

  /* ===== Reduced motion ===== */
  @media (prefers-reduced-motion: reduce) {
    * {
      transition-duration:0.01ms !important;
      animation-duration:0.01ms !important;
      scroll-behavior:auto !important;
    }
  }

/* roulang page: category3 */
/* ===== Design Tokens ===== */
        :root {
            --ink: #111418;
            --ink-soft: #1A1D21;
            --orange: #E8502A;
            --orange-dark: #c63e1e;
            --warm-bg: #F7F5F2;
            --white: #FFFFFF;
            --text-main: #1A1D21;
            --text-sub: #5F646B;
            --text-weak: #9CA3AF;
            --line: #E5E1DB;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --sidebar-w: 240px;
            --header-h: 64px;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--warm-bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        /* ===== Layout Shell ===== */
        .app-shell {
            min-height: 100vh;
        }
        .main-content {
            margin-left: var(--sidebar-w);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .container-site {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-w);
            height: 100vh;
            background: var(--ink);
            color: #F7F5F2;
            display: flex;
            flex-direction: column;
            padding: 32px 20px 24px;
            z-index: 100;
            transition: transform .3s ease;
        }
        .sidebar-brand {
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
        }
        .logo {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -.01em;
            line-height: 1.2;
        }
        .logo span {
            color: var(--orange);
        }
        .logo-sub {
            font-size: .6875rem;
            font-family: var(--font-mono);
            letter-spacing: .12em;
            color: rgba(255, 255, 255, .55);
            display: block;
            margin-top: 6px;
            text-transform: uppercase;
        }
        .sidebar-nav {
            margin-top: 32px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .nav-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 16px;
            border-radius: 8px;
            color: rgba(247, 245, 242, .86);
            font-size: .9375rem;
            font-weight: 500;
            transition: background .2s, color .2s;
            position: relative;
        }
        .nav-item .nav-arrow {
            font-size: .875rem;
            color: rgba(255, 255, 255, .35);
            transition: transform .2s;
        }
        .nav-item:hover {
            background: rgba(255, 255, 255, .06);
            color: #fff;
        }
        .nav-item:hover .nav-arrow {
            transform: translateX(3px);
            color: var(--orange);
        }
        .nav-item.active {
            background: rgba(232, 80, 42, .12);
            color: var(--orange);
        }
        .nav-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--orange);
            border-radius: 2px;
        }
        .nav-item.active .nav-arrow {
            color: var(--orange);
        }
        .sidebar-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 20px;
            font-size: .8125rem;
            color: rgba(255, 255, 255, .5);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .sidebar-bottom .social-icons a {
            color: rgba(255, 255, 255, .45);
            margin-left: 8px;
            transition: color .2s;
        }
        .sidebar-bottom .social-icons a:hover {
            color: var(--orange);
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h);
            background: var(--ink);
            color: #fff;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            z-index: 200;
        }
        .mobile-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
        }
        .mobile-logo span {
            color: var(--orange);
        }
        .menu-toggle {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            padding: 8px;
            border-radius: 6px;
        }
        .menu-toggle span {
            height: 2px;
            background: #fff;
            width: 100%;
            border-radius: 2px;
            transition: all .2s;
        }
        .menu-toggle:hover span {
            background: var(--orange);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .5);
            z-index: 90;
        }
        .sidebar-overlay.show {
            display: block;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background: var(--ink);
            color: #fff;
            padding: 120px 0 96px;
            overflow: hidden;
            border-bottom-left-radius: 0;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .45;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(17, 20, 24, .92) 0%, rgba(17, 20, 24, .55) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-kicker {
            font-size: .8125rem;
            font-family: var(--font-mono);
            letter-spacing: .18em;
            text-transform: uppercase;
            color: var(--orange);
            margin-bottom: 22px;
            display: inline-block;
            border: 1px solid rgba(232, 80, 42, .4);
            padding: 5px 14px;
            border-radius: 999px;
        }
        .page-hero h1 {
            font-size: 3.25rem;
            line-height: 1.18;
            font-weight: 700;
            letter-spacing: -.02em;
            margin-bottom: 20px;
            max-width: 840px;
        }
        .hero-sub {
            font-size: 1rem;
            color: rgba(255, 255, 255, .72);
            font-weight: 300;
            max-width: 520px;
            margin-bottom: 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--orange);
            color: #fff;
            font-weight: 600;
            font-size: .9375rem;
            padding: 14px 30px;
            border-radius: 8px;
            transition: background .25s, transform .25s;
            border: none;
        }
        .btn-primary span {
            font-size: 1.125rem;
            transition: transform .25s;
        }
        .btn-primary:hover {
            background: var(--orange-dark);
            transform: translateY(-2px);
        }
        .btn-primary:hover span {
            transform: translateX(4px);
        }
        .btn-link {
            color: rgba(255, 255, 255, .9);
            font-size: .9375rem;
            font-weight: 500;
            border-bottom: 1px solid rgba(255, 255, 255, .4);
            padding-bottom: 2px;
            transition: border-color .2s, color .2s;
        }
        .btn-link:hover {
            color: var(--orange);
            border-color: var(--orange);
        }

        /* ===== Section ===== */
        .section {
            padding: 96px 0;
        }
        .section-head {
            display: flex;
            align-items: baseline;
            gap: 16px;
            margin-bottom: 48px;
            border-bottom: 1px solid var(--line);
            padding-bottom: 20px;
        }
        .section-num {
            font-family: var(--font-mono);
            font-size: 1rem;
            color: var(--orange);
            font-weight: 600;
            letter-spacing: .05em;
        }
        .section-head h2 {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -.01em;
            color: var(--text-main);
            line-height: 1.3;
        }

        /* ===== Intro ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: start;
        }
        .intro-text p {
            font-size: 1.0625rem;
            color: var(--text-sub);
            line-height: 1.85;
            margin-bottom: 20px;
        }
        .intro-text p strong {
            color: var(--text-main);
        }
        .intro-points {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-top: 1px solid var(--line);
        }
        .intro-points>div {
            padding: 20px 0 20px 24px;
            border-bottom: 1px solid var(--line);
            position: relative;
        }
        .intro-points>div::before {
            content: '';
            position: absolute;
            left: 0;
            top: 28px;
            width: 8px;
            height: 8px;
            background: var(--orange);
            border-radius: 50%;
        }
        .intro-points strong {
            display: block;
            font-size: 1.0625rem;
            margin-bottom: 4px;
        }
        .intro-points span {
            font-size: .875rem;
            color: var(--text-sub);
        }

        /* ===== Gear Grid ===== */
        .gear-section {
            background: var(--white);
        }
        .gear-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .gear-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow .3s, transform .3s;
            display: flex;
            flex-direction: column;
        }
        .gear-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .gear-card .thumb {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
            background: #F0EEE9;
        }
        .gear-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .35s ease;
        }
        .gear-card:hover .thumb img {
            transform: scale(1.04);
        }
        .gear-card .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, .94);
            color: var(--text-main);
            font-size: .6875rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: .04em;
        }
        .gear-card .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .gear-card h3 {
            font-size: 1.1875rem;
            line-height: 1.35;
            font-weight: 600;
            color: var(--text-main);
            transition: color .2s;
        }
        .gear-card:hover h3 {
            color: var(--orange);
        }
        .gear-card .card-desc {
            font-size: .875rem;
            color: var(--text-sub);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .gear-card .card-meta {
            margin-top: auto;
            padding-top: 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: .8125rem;
            color: var(--text-weak);
            border-top: 1px solid var(--line);
        }
        .gear-card .card-meta a {
            color: var(--text-main);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color .2s;
        }
        .gear-card .card-meta a i {
            transition: transform .2s;
        }
        .gear-card .card-meta a:hover {
            color: var(--orange);
        }
        .gear-card .card-meta a:hover i {
            transform: translateX(3px);
        }

        /* ===== Scene Section ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: box-shadow .25s, transform .25s;
        }
        .scene-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .scene-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(232, 80, 42, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 1.25rem;
            color: var(--orange);
        }
        .scene-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .scene-card p {
            font-size: .875rem;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== Process ===== */
        .process-section {
            background: var(--ink);
            color: #fff;
        }
        .process-section .section-head {
            border-bottom-color: rgba(255, 255, 255, .15);
        }
        .process-section .section-head h2 {
            color: #fff;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            counter-reset: process;
        }
        .process-step {
            position: relative;
            padding-top: 28px;
            border-top: 2px solid rgba(255, 255, 255, .15);
        }
        .process-step::before {
            counter-increment: process;
            content: "0" counter(process);
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 700;
            color: var(--orange);
            line-height: 1;
            display: block;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-size: 1.0625rem;
            margin-bottom: 8px;
            color: #fff;
        }
        .process-step p {
            font-size: .875rem;
            color: rgba(255, 255, 255, .65);
            line-height: 1.7;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }
        .stats-item .num {
            font-family: var(--font-mono);
            font-size: 3rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stats-item .num span {
            color: var(--orange);
        }
        .stats-item .label {
            font-size: .875rem;
            color: var(--text-sub);
        }

        /* ===== Related Links ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            background: var(--white);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            font-size: .9375rem;
            font-weight: 500;
            color: var(--text-main);
            transition: box-shadow .2s, border-color .2s, color .2s;
        }
        .related-link i {
            color: var(--text-weak);
            transition: transform .2s;
        }
        .related-link:hover {
            border-color: var(--orange);
            color: var(--orange);
            box-shadow: var(--shadow);
        }
        .related-link:hover i {
            transform: translateX(4px);
            color: var(--orange);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            border-top: 1px solid var(--line);
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 4px;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: color .2s;
            background: none;
            text-align: left;
            width: 100%;
        }
        .faq-question:hover {
            color: var(--orange);
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--text-weak);
            transition: transform .3s, color .2s;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--orange);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 4px 24px;
            color: var(--text-sub);
            font-size: .875rem;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--ink);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .25;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 40px 0 20px;
        }
        .cta-content h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, .7);
            font-size: .9375rem;
            margin-bottom: 36px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .4);
            color: #fff;
            font-weight: 600;
            font-size: .9375rem;
            padding: 14px 30px;
            border-radius: 8px;
            transition: background .25s, border-color .25s;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--warm-bg);
            border-top: 1px solid var(--line);
            padding: 64px 0 32px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.625rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .footer-logo span {
            color: var(--orange);
        }
        .footer-desc {
            font-size: .8125rem;
            color: var(--text-sub);
            max-width: 280px;
            line-height: 1.7;
        }
        .footer-title {
            font-size: .875rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: .8125rem;
            color: var(--text-sub);
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: var(--orange);
            padding-left: 4px;
        }
        .footer-contact {
            font-size: .8125rem;
            color: var(--text-sub);
            margin-bottom: 16px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 34px;
            height: 34px;
            border: 1px solid var(--line);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: .875rem;
            transition: background .2s, color .2s, border-color .2s;
        }
        .footer-social a:hover {
            background: var(--ink);
            color: #fff;
            border-color: var(--ink);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            font-size: .75rem;
            color: var(--text-weak);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 4px 0 20px rgba(0, 0, 0, .2);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--header-h);
            }
            .page-hero {
                padding: 80px 0 64px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .container-site {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 2.25rem;
            }
            .hero-sub {
                font-size: .9375rem;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .gear-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scene-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn-primary,
            .cta-actions .btn-secondary {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .mobile-header {
                padding: 0 14px;
            }
            .page-hero h1 {
                font-size: 1.875rem;
            }
            .hero-actions {
                gap: 16px;
            }
            .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .section-head {
                flex-direction: column;
                gap: 4px;
            }
            .section-head h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== Reduced Motion ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
        }