/* roulang page: index */
:root {
    --brand: #2F6E8E;
    --brand-dark: #1E5068;
    --brand-deep: #173D55;
    --gold: #C1A36B;
    --bg: #F4F9FC;
    --card: #FFFFFF;
    --ink: #1F2A37;
    --muted: #6B7C8A;
    --line: #E3EEF5;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --shadow-card: 0 8px 30px -12px rgba(47,110,142,0.15);
    --shadow-pop: 0 20px 60px -15px rgba(30,80,104,0.25);
    --ease: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }

  .container-x {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  @media (min-width: 640px) {
    .container-x {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .container-x {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  .section-pad {
    padding-top: 5rem;
    padding-bottom: 5rem;
  }

  @media (min-width: 768px) {
    .section-pad {
      padding-top: 7rem;
      padding-bottom: 7rem;
    }
  }

  .pill-nav {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    width: min(1200px, calc(100% - 2rem));
    height: 64px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 999px;
    border: 1px solid rgba(227, 238, 245, 0.9);
    box-shadow: 0 10px 40px rgba(47, 110, 142, 0.08);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem 0 1.5rem;
    transition: background 200ms ease, box-shadow 200ms ease;
  }

  .pill-nav.scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 10px 40px rgba(47, 110, 142, 0.14);
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }

  .nav-links a {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--ink);
    transition: background 200ms ease, color 200ms ease;
  }

  .nav-links a:hover {
    background: var(--brand-50, #F4F9FC);
    color: var(--brand);
  }

  .nav-links a.active {
    background: #E8F1F7;
    color: var(--brand);
    font-weight: 600;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background: var(--brand);
    color: #ffffff;
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.625rem 1.5rem;
    border-radius: 999px;
    transition: background 200ms ease, transform 200ms ease, box-shadow 200ms ease;
  }

  .nav-cta:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(47, 110, 142, 0.3);
  }

  .nav-cta:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(47, 110, 142, 0.4);
  }

  .hamburger {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: transparent;
    border: 1px solid var(--line);
    align-items: center;
    justify-content: center;
    cursor: pointer;
  }

  .hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    position: relative;
    transition: background 200ms ease;
  }

  .hamburger span::before,
  .hamburger span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 200ms ease;
  }

  .hamburger span::before {
    top: -6px;
  }

  .hamburger span::after {
    top: 6px;
  }

  .hamburger.open span {
    background: transparent;
  }

  .hamburger.open span::before {
    transform: rotate(45deg);
    top: 0;
  }

  .hamburger.open span::after {
    transform: rotate(-45deg);
    top: 0;
  }

  .mobile-menu {
    display: none;
    position: fixed;
    top: 5rem;
    left: 1rem;
    right: 1rem;
    background: #ffffff;
    border-radius: 1.5rem;
    box-shadow: 0 20px 60px -15px rgba(30, 80, 104, 0.25);
    padding: 1.5rem;
    z-index: 49;
    border: 1px solid var(--line);
  }

  .mobile-menu.open {
    display: block;
  }

  .mobile-menu a {
    display: block;
    padding: 0.875rem 1rem;
    border-radius: 0.75rem;
    color: var(--ink);
    font-size: 1rem;
    font-weight: 500;
  }

  .mobile-menu a:hover {
    background: var(--bg);
    color: var(--brand);
  }

  .mobile-menu a.active {
    background: #E8F1F7;
    color: var(--brand);
  }

  .mobile-menu .nav-cta {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--brand);
    color: #ffffff;
    font-weight: 500;
    font-size: 1rem;
    padding: 0.875rem 2rem;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: background 200ms ease, transform 200ms ease, box-shadow 200ms ease;
    cursor: pointer;
  }

  .btn-primary:hover {
    background: var(--brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(47, 110, 142, 0.3);
  }

  .btn-primary:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(47, 110, 142, 0.45);
  }

  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: #ffffff;
    color: var(--brand);
    font-weight: 500;
    font-size: 1rem;
    padding: 0.875rem 2rem;
    border-radius: 999px;
    border: 1px solid var(--brand);
    transition: background 200ms ease, transform 200ms ease, box-shadow 200ms ease;
    cursor: pointer;
  }

  .btn-outline:hover {
    background: #E8F1F7;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(47, 110, 142, 0.16);
  }

  .btn-outline:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(47, 110, 142, 0.35);
  }

  .card-base {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-card);
    transition: transform 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
  }

  .card-base:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-pop);
    border-color: rgba(47, 110, 142, 0.25);
  }

  .tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background: var(--brand-50, #F4F9FC);
    color: var(--brand);
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.375rem 0.875rem;
    border-radius: 0.5rem;
    border: 1px solid rgba(47, 110, 142, 0.12);
  }

  .form-input {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 0.875rem;
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    color: var(--ink);
    transition: border-color 200ms ease, box-shadow 200ms ease;
  }

  .form-input:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(47, 110, 142, 0.12);
  }

  .form-label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--ink);
  }

  .timeline-wrap {
    position: relative;
  }

  .timeline-wrap::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: repeating-linear-gradient(
      to bottom,
      var(--brand) 0px,
      var(--brand) 6px,
      transparent 6px,
      transparent 12px
    );
    transform: translateX(-50%);
  }

  .timeline-item {
    position: relative;
    width: 50%;
    padding-right: 3rem;
  }

  .timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 3rem;
  }

  .timeline-dot {
    position: absolute;
    top: 1.25rem;
    right: -1rem;
    width: 2rem;
    height: 2rem;
    background: var(--brand);
    border: 4px solid #ffffff;
    border-radius: 999px;
    box-shadow: 0 0 0 2px rgba(47, 110, 142, 0.3);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: #fff;
  }

  .timeline-item:nth-child(even) .timeline-dot {
    right: auto;
    left: -1rem;
  }

  .faq-item {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: border-color 200ms ease, background 200ms ease;
  }

  .faq-item.active {
    background: var(--brand-50, #F4F9FC);
    border-color: rgba(47, 110, 142, 0.35);
  }

  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    cursor: pointer;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink);
  }

  .faq-icon {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border-radius: 999px;
    background: var(--brand-100, #E8F1F7);
    color: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    line-height: 1;
    transition: transform 250ms ease, background 250ms ease;
  }

  .faq-item.active .faq-icon {
    background: var(--brand);
    color: #fff;
    transform: rotate(45deg);
  }

  .faq-a {
    display: none;
    margin-top: 1rem;
    color: var(--muted);
    font-size: 0.9375rem;
    line-height: 1.75;
    border-top: 1px solid rgba(227, 238, 245, 0.7);
    padding-top: 1rem;
  }

  .faq-item.active .faq-a {
    display: block;
  }

  .cms-list li {
    list-style: none;
  }

  .news-card {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
  }

  .news-card .time-line {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--muted);
  }

  .arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--brand);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: gap 200ms ease, color 200ms ease;
  }

  .arrow-link:hover {
    color: var(--brand-dark);
    gap: 0.625rem;
  }

  .footer-link {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9375rem;
    transition: color 200ms ease;
  }

  .footer-link:hover {
    color: var(--gold);
  }

  .stat-card {
    background: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 1.25rem;
    padding: 1.5rem;
    box-shadow: 0 8px 30px -12px rgba(47, 110, 142, 0.12);
    text-align: center;
  }

  @media (max-width: 768px) {
    .nav-links,
    .nav-cta {
      display: none;
    }

    .hamburger {
      display: flex;
    }

    .timeline-wrap::before {
      left: 1rem;
      transform: none;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
      width: 100%;
      margin-left: 0;
      padding-left: 3rem;
      padding-right: 0;
    }

    .timeline-item .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
      left: 0.5rem;
      right: auto;
    }
  }

  @media (max-width: 520px) {
    .pill-nav {
      width: calc(100% - 1rem);
      top: 0.5rem;
      height: 58px;
      padding: 0 1rem 0 1.25rem;
    }

    .section-pad {
      padding-top: 4rem;
      padding-bottom: 4rem;
    }

    .btn-primary,
    .btn-outline {
      width: 100%;
    }
  }

  .hero-bg {
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }

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

  .img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1rem;
  }

/* roulang page: article */
:root {
    --color-brand: #2F6E8E;
    --color-brand-dark: #1E5068;
    --color-brand-light: #E8F1F7;
    --color-brand-50: #EDF5F9;
    --color-gold: #C1A36B;
    --color-bg: #F4F9FC;
    --color-card: #FFFFFF;
    --color-text: #1F2A37;
    --color-text-secondary: #6B7C8A;
    --color-border: #E3EEF5;
    --color-deep: #173D55;
    --color-error: #D03B4E;
    --color-success: #2E8B6B;

    --radius-card: 1rem;
    --radius-btn: 999px;
    --radius-input: 0.75rem;

    --shadow-card: 0 8px 30px -12px rgba(47, 110, 142, 0.15);
    --shadow-nav: 0 10px 40px rgba(47, 110, 142, 0.12);
    --shadow-feature: 0 20px 60px -15px rgba(30, 80, 104, 0.25);

    --transition-base: 200ms ease;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

  input,
  textarea,
  select {
    font-family: inherit;
  }

  .container-x {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  @media (min-width: 640px) {
    .container-x {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .container-x {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  /* ===== 悬浮胶囊导航 ===== */
  .nav-header {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    width: min(1200px, calc(100% - 2rem));
    z-index: 100;
  }

  .nav-capsule {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 1.25rem;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(227, 238, 245, 0.8);
    border-radius: 999px;
    box-shadow: var(--shadow-nav);
    transition: background var(--transition-base), box-shadow var(--transition-base);
  }

  .nav-header.scrolled .nav-capsule {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 16px 48px rgba(47, 110, 142, 0.14);
  }

  .nav-brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-shrink: 0;
  }

  .nav-logo {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 999px;
    background: var(--color-brand);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    border: 2px solid rgba(255, 255, 255, 0.6);
    font-family: 'PingFang SC', sans-serif;
  }

  .nav-brand-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
    white-space: nowrap;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .nav-links a {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1.1rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
  }

  .nav-links a:hover {
    color: var(--color-brand);
    background: var(--color-brand-50);
  }

  .nav-links a.active {
    color: var(--color-brand);
    background: var(--color-brand-50);
    font-weight: 600;
  }

  .nav-links a:focus-visible,
  .nav-cta:focus-visible,
  .btn:focus-visible,
  .nav-toggle:focus-visible {
    outline: 2px solid var(--color-brand);
    outline-offset: 2px;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 0.55rem 1.5rem;
    border-radius: 999px;
    background: var(--color-brand);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: 0 4px 16px rgba(47, 110, 142, 0.25);
    white-space: nowrap;
  }

  .nav-cta:hover {
    background: var(--color-brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(30, 80, 104, 0.3);
  }

  .nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    color: var(--color-text);
    transition: background var(--transition-base);
  }

  .nav-toggle:hover {
    background: var(--color-brand-50);
  }

  .nav-toggle svg {
    width: 22px;
    height: 22px;
  }

  .nav-mobile-menu {
    display: none;
    position: absolute;
    top: calc(100% + 0.65rem);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 1.25rem;
    border: 1px solid rgba(227, 238, 245, 0.8);
    box-shadow: var(--shadow-nav);
    padding: 1rem;
    flex-direction: column;
    gap: 0.35rem;
  }

  .nav-mobile-menu.open {
    display: flex;
  }

  .nav-mobile-menu a {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
  }

  .nav-mobile-menu a:hover,
  .nav-mobile-menu a.active {
    color: var(--color-brand);
    background: var(--color-brand-50);
  }

  .nav-mobile-menu .btn {
    margin-top: 0.5rem;
    text-align: center;
  }

  @media (max-width: 768px) {
    .nav-links,
    .nav-cta {
      display: none;
    }

    .nav-toggle {
      display: flex;
    }

    .nav-capsule {
      padding: 0 0.85rem 0 1rem;
    }

    .nav-brand-text {
      font-size: 1rem;
    }
  }

  /* ===== 按钮 ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.75rem;
    border-radius: 999px;
    font-size: 0.9375rem;
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 1px solid transparent;
    line-height: 1.4;
  }

  .btn-primary {
    background: var(--color-brand);
    color: #fff;
    box-shadow: 0 4px 16px rgba(47, 110, 142, 0.2);
  }

  .btn-primary:hover {
    background: var(--color-brand-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(30, 80, 104, 0.28);
  }

  .btn-secondary {
    background: transparent;
    color: var(--color-brand);
    border-color: var(--color-brand);
  }

  .btn-secondary:hover {
    background: var(--color-brand-light);
    transform: translateY(-2px);
  }

  .btn-block {
    width: 100%;
  }

  /* ===== 标签 ===== */
  .tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 0.5rem;
    background: var(--color-brand-50);
    color: var(--color-brand);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.01em;
  }

  /* ===== 文章头部 ===== */
  .article-banner {
    position: relative;
    padding: 8rem 0 3rem;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }

  .article-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(244, 249, 252, 0.92);
  }

  .article-banner .container-x {
    position: relative;
    z-index: 1;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
  }

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

  .breadcrumb .current {
    color: var(--color-text-secondary);
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .article-cat {
    display: inline-block;
    padding: 0.3rem 0.9rem;
    border-radius: 999px;
    background: rgba(47, 110, 142, 0.1);
    color: var(--color-brand);
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 0.01em;
  }

  .article-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-text);
    letter-spacing: -0.02em;
    max-width: 42rem;
    margin-bottom: 1.25rem;
  }

  .article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
  }

  .article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
  }

  .article-meta .meta-date::before {
    content: '·';
    font-weight: 700;
    margin-right: 0.4rem;
  }

  @media (max-width: 768px) {
    .article-banner {
      padding: 6.5rem 0 2rem;
    }

    .article-title {
      font-size: 1.875rem;
    }

    .article-meta {
      gap: 0.85rem;
      font-size: 0.8125rem;
    }
  }

  /* ===== 文章正文 ===== */
  .article-body {
    padding: 3rem 0 2rem;
  }

  .article-body-wrap {
    max-width: 720px;
    margin: 0 auto;
  }

  .cms-content {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--color-text);
  }

  .cms-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 2.5rem 0 1rem;
    color: var(--color-text);
    padding-left: 0.85rem;
    border-left: 4px solid var(--color-brand);
    line-height: 1.35;
  }

  .cms-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 2rem 0 0.75rem;
    color: var(--color-text);
  }

  .cms-content p {
    margin-bottom: 1.5rem;
  }

  .cms-content img {
    border-radius: 12px;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-card);
  }

  .cms-content blockquote {
    border-left: 4px solid var(--color-brand);
    background: var(--color-brand-50);
    padding: 1rem 1.25rem;
    border-radius: 0 12px 12px 0;
    margin: 1.5rem 0;
    color: var(--color-text-secondary);
    font-style: normal;
  }

  .cms-content ul,
  .cms-content ol {
    margin: 1.25rem 0;
    padding-left: 1.5rem;
  }

  .cms-content li {
    margin-bottom: 0.5rem;
  }

  .cms-content a {
    color: var(--color-brand);
    border-bottom: 1px solid rgba(47, 110, 142, 0.3);
  }

  .cms-content a:hover {
    color: var(--color-brand-dark);
    border-bottom-color: var(--color-brand-dark);
  }

  .cms-content figcaption {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
  }

  .cms-empty {
    text-align: center;
    padding: 4rem 2rem;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
  }

  .cms-empty p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
  }

  .article-footer-actions {
    margin: 3rem 0 1%;
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
  }

  @media (max-width: 640px) {
    .article-body {
      padding: 2rem 0 1.5rem;
    }
  }

  /* ===== 相关推荐 ===== */
  .related-section {
    background: #fff;
    border-top: 1px solid var(--color-border);
  }

  .section-head {
    margin-bottom: 2.5rem;
  }

  .section-head h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
  }

  .section-head p {
    color: var(--color-text-secondary);
    font-size: 1rem;
  }

  @media (max-width: 640px) {
    .section-head h2 {
      font-size: 1.5rem;
    }
  }

  .related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  @media (max-width: 1024px) {
    .related-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 640px) {
    .related-grid {
      grid-template-columns: 1fr;
    }
  }

  .related-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
  }

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

  .related-link {
    display: flex;
    flex-direction: column;
    height: 100%;
  }

  .related-thumb {
    overflow: hidden;
  }

  .related-thumb img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 300ms ease;
  }

  .related-card:hover .related-thumb img {
    transform: scale(1.04);
  }

  .related-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
  }

  .related-content .tag {
    align-self: flex-start;
    margin-bottom: 0.75rem;
  }

  .related-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-text);
    margin-bottom: 0.65rem;
  }

  .related-content p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 1rem;
  }

  .related-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
  }

  .related-meta .read-link {
    color: var(--color-brand);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: all var(--transition-base);
  }

  .related-meta .read-link:hover {
    gap: 0.5rem;
    color: var(--color-brand-dark);
  }

  /* ===== FAQ ===== */
  .faq-section {
    padding: 4.5rem 0;
    background: var(--color-bg);
  }

  .faq-list {
    max-width: 760px;
    margin: 0 auto;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
    transition: all var(--transition-base);
  }

  .faq-item.open {
    border-color: var(--color-brand);
    background: var(--color-brand-50);
  }

  .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text);
    user-select: none;
  }

  .faq-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: var(--color-brand-50);
    color: var(--color-brand);
    font-size: 1.125rem;
    font-weight: 500;
    transition: all var(--transition-base);
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--color-brand);
    color: #fff;
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms ease;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.8;
  }

  .faq-item.open .faq-answer {
    max-height: 320px;
    margin-top: 0.75rem;
  }

  @media (max-width: 640px) {
    .faq-question {
      font-size: 0.9375rem;
    }
  }

  /* ===== CTA ===== */
  .cta-section {
    position: relative;
    padding: 5rem 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }

  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(244, 249, 252, 0.94);
  }

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

  .cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
  }

  .cta-info h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.01em;
    margin-bottom: 1rem;
    line-height: 1.3;
  }

  .cta-info p {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
  }

  .contact-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .contact-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--color-text);
    font-size: 0.9375rem;
  }

  .contact-item .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: var(--color-brand-50);
    color: var(--color-brand);
    font-weight: 700;
    flex-shrink: 0;
  }

  .cta-form {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 1.25rem;
    padding: 2rem;
    box-shadow: var(--shadow-feature);
  }

  .form-group {
    margin-bottom: 1.25rem;
  }

  .form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--color-text);
  }

  .form-input,
  .form-textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-input);
    background: #fff;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    color: var(--color-text);
  }

  .form-input:focus,
  .form-textarea:focus {
    outline: none;
    border-color: var(--color-brand);
    box-shadow: 0 0 0 4px rgba(47, 110, 142, 0.1);
  }

  .form-input::placeholder,
  .form-textarea::placeholder {
    color: #9FB0BE;
  }

  select.form-input {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%236B7C8A' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
  }

  @media (max-width: 768px) {
    .cta-grid {
      grid-template-columns: 1fr;
      gap: 2rem;
    }

    .cta-form {
      padding: 1.5rem;
    }

    .cta-section {
      padding: 3.5rem 0;
    }
  }

  /* ===== 页脚 ===== */
  .footer-link {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-base);
    font-size: 0.875rem;
  }

  .footer-link:hover {
    color: var(--color-gold);
  }

  @media (max-width: 768px) {
    .footer-grid {
      grid-template-columns: repeat(2, 1fr) !important;
    }
  }

  @media (max-width: 520px) {
    .footer-grid {
      grid-template-columns: 1fr !important;
    }
  }

/* roulang page: category1 */
:root {
            --brand: #2F6E8E;
            --brand-dark: #1E5068;
            --brand-light: #F4F9FC;
            --brand-border: #E3EEF5;
            --gold: #C1A36B;
            --text-primary: #1F2A37;
            --text-secondary: #6B7C8A;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--brand-light);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        .container-x {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-x {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-x {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            display: block;
            max-width: 100%;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #fff;
            border-radius: 999px;
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-primary:hover {
            background: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px -8px rgba(30, 80, 104, 0.4);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--brand);
            border: 1.5px solid var(--brand);
            border-radius: 999px;
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-secondary:hover {
            background: #E8F1F7;
            transform: translateY(-2px);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }

        /* Nav */
        .nav-link {
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.2s ease;
            display: inline-block;
        }
        .nav-link:hover {
            background: var(--brand-light);
            color: var(--brand);
        }
        .nav-link.active {
            background: #E8F1F7;
            color: var(--brand);
            font-weight: 600;
        }
        .mobile-nav-link {
            padding: 0.7rem 1rem;
            border-radius: 0.75rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: all 0.2s ease;
            display: block;
        }
        .mobile-nav-link:hover {
            background: var(--brand-light);
        }
        .mobile-nav-link.active {
            background: #E8F1F7;
            color: var(--brand);
            font-weight: 600;
        }

        /* Cards */
        .card {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 1rem;
            box-shadow: 0 8px 30px -12px rgba(47, 110, 142, 0.15);
            transition: all 0.2s ease;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px -15px rgba(30, 80, 104, 0.25);
        }

        /* Tag */
        .tag {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 0.375rem;
            font-size: 0.75rem;
            font-weight: 600;
            background: #E8F1F7;
            color: var(--brand);
            letter-spacing: 0.02em;
        }
        .tag-gold {
            background: #F5EFE2;
            color: var(--gold);
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 1rem;
            transition: all 0.2s ease;
        }
        .faq-item.active {
            border-color: var(--brand);
            background: #F0F7FB;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
        }
        .faq-icon {
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* Form */
        .form-input {
            background: #fff;
            border: 1px solid var(--brand-border);
            border-radius: 0.75rem;
            padding: 0.75rem 1rem;
            width: 100%;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            font-size: 0.95rem;
            color: var(--text-primary);
        }
        .form-input:focus {
            outline: none;
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(47, 110, 142, 0.1);
        }
        .form-input::placeholder {
            color: #9FB0BD;
        }
        .form-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.35rem;
            display: block;
        }

        /* Footer */
        .footer-link {
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.2s ease;
        }
        .footer-link:hover {
            color: var(--gold);
        }

        /* Hero */
        .hero-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 8rem 0 4rem;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(244, 249, 252, 0.72);
        }
        .hero-content {
            position: relative;
            z-index: 1;
        }

        /* Section */
        .section-padding {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        /* Timeline */
        .timeline-dot {
            width: 3rem;
            height: 3rem;
            border-radius: 999px;
            background: var(--brand);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(47, 110, 142, 0.3);
        }
        .timeline-line {
            position: absolute;
            left: 1.5rem;
            top: 3.5rem;
            bottom: -1.5rem;
            width: 2px;
            background: linear-gradient(to bottom, var(--brand-border), transparent);
        }
        @media (min-width: 768px) {
            .timeline-line {
                left: 50%;
                transform: translateX(-50%);
            }
        }

        /* Stat */
        .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-dark);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
        }