/* roulang page: index */
:root {
    --primary-900: #0B2F2F;
    --primary-700: #0E4B4B;
    --primary-600: #146060;
    --primary-100: #D6E5E2;
    --accent-600: #C0562A;
    --accent-500: #DB6B34;
    --accent-100: #F6DDCB;
    --canvas: #F6F2EA;
    --surface: #FFFFFF;
    --ink: #172B2B;
    --muted: #5E716E;
    --line: #DCE4DF;
    --success: #12805C;
    --warning: #9A6A00;
    --radius-lg: 0.875rem;
    --shadow-soft: 0 1px 2px rgba(11, 47, 47, 0.05);
    --shadow-lift: 0 12px 32px rgba(11, 47, 47, 0.10);
  }

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

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }

  body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--canvas);
    color: var(--ink);
    line-height: 1.75;
    font-size: 16px;
  }

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

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

  button,
  input {
    font: inherit;
  }

  button {
    cursor: pointer;
  }

  .container-x {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .eyebrow {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-600);
  }

  .eyebrow.primary {
    color: var(--primary-700);
  }

  .section-padding {
    padding: 96px 0;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    line-height: 1.5;
    white-space: nowrap;
  }

  .badge-solid {
    background: var(--primary-700);
    color: #fff;
  }

  .badge-soft {
    background: var(--primary-100);
    color: var(--primary-900);
  }

  .badge-accent {
    background: var(--accent-100);
    color: var(--accent-600);
  }

  .badge-success {
    background: #E6F3EC;
    color: var(--success);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 10px 24px;
    min-height: 44px;
    border: 1px solid transparent;
    transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
    white-space: nowrap;
  }

  .btn:focus-visible {
    outline: 2px solid var(--accent-500);
    outline-offset: 3px;
  }

  .btn-primary {
    background: var(--accent-600);
    color: #fff;
  }

  .btn-primary:hover {
    background: var(--accent-500);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(192, 86, 42, 0.18);
  }

  .btn-primary:active {
    transform: translateY(0);
    box-shadow: none;
  }

  .btn-outline {
    border-color: var(--primary-600);
    color: var(--primary-700);
    background: transparent;
  }

  .btn-outline:hover {
    background: var(--primary-100);
    border-color: var(--primary-600);
    transform: translateY(-2px);
  }

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

  .btn-light {
    background: #fff;
    color: var(--primary-900);
  }

  .btn-light:hover {
    background: #F1F5F3;
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
  }

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

  .btn-white-outline {
    border-color: rgba(255, 255, 255, 0.55);
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
  }

  .btn-white-outline:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
  }

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

  .card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  }

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

  .nav-item {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 0 6px;
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.78);
    transition: color 0.2s ease;
    white-space: nowrap;
  }

  .nav-item:hover {
    color: #fff;
  }

  .nav-item.active {
    color: #fff;
    font-weight: 700;
  }

  .nav-item.active::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: -1px;
    width: 24px;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--accent-500);
  }

  .hot-chip {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.68);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  }

  .hot-chip:hover {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
  }

  .hot-chip:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
    color: #fff;
  }

  .hero-title {
    font-size: clamp(1.75rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.01em;
  }

  .section-title {
    font-size: clamp(1.375rem, 2.5vw, 2.125rem);
    font-weight: 800;
    line-height: 1.35;
  }

  .sub-title {
    font-size: 1.25rem;
    font-weight: 700;
  }

  .card-title {
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.5;
  }

  .line-divider {
    height: 1px;
    background: var(--line);
  }

  .dash-line {
    border-top: 1px dashed var(--line);
  }

  .address-card {
    border-radius: 1rem;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: 0 12px 36px rgba(11, 47, 47, 0.14);
    padding: 28px;
    position: relative;
  }

  .address-card::after {
    content: '';
    position: absolute;
    top: -1px;
    right: -1px;
    width: 48px;
    height: 48px;
    border-top: 2px solid var(--accent-500);
    border-right: 2px solid var(--accent-500);
    border-top-right-radius: 1rem;
  }

  .quick-entry {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 22px 16px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    text-align: center;
  }

  .quick-entry:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lift);
    border-color: var(--primary-100);
  }

  .quick-entry:focus-visible {
    outline: 2px solid var(--accent-500);
    outline-offset: 2px;
  }

  .empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 56px 20px;
    background: #FAF8F4;
    border: 1px dashed var(--line);
    border-radius: var(--radius-lg);
    color: var(--muted);
    text-align: center;
  }

  .news-item {
    transition: background 0.2s ease;
  }

  .news-item:hover {
    background: #FAFAFA;
  }

  .news-item:focus-within {
    background: #F6F4EF;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color 0.2s ease;
  }

  .faq-item.open {
    border-color: var(--primary-600);
  }

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    text-align: left;
    padding: 18px 20px;
    background: none;
    border: 0;
    font-weight: 600;
    font-size: 1rem;
    color: var(--ink);
    min-height: 44px;
    transition: background 0.2s ease;
  }

  .faq-question:hover {
    background: #F8F7F3;
  }

  .faq-question:focus-visible {
    outline: 2px solid var(--accent-500);
    outline-offset: -2px;
    border-radius: 14px;
  }

  .faq-icon {
    position: relative;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-100);
    transition: transform 0.3s ease, background 0.3s ease;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 2px;
    background: var(--primary-900);
    transform: translate(-50%, -50%);
    border-radius: 2px;
  }

  .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    transition: transform 0.3s ease;
  }

  .faq-item.open .faq-icon {
    background: var(--accent-100);
  }

  .faq-item.open .faq-icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
  }

  .faq-answer {
    max-height: 0;
    padding: 0 20px;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    color: var(--muted);
    font-size: 0.9375rem;
    line-height: 1.85;
  }

  .faq-item.open .faq-answer {
    max-height: 400px;
    padding: 0 20px 20px;
  }

  .text-muted {
    color: var(--muted);
  }

  .chip-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--accent-500);
    display: inline-block;
  }

  .footer-link {
    display: inline-flex;
    align-items: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.66);
    transition: color 0.2s ease, transform 0.2s ease;
    padding: 4px 0;
  }

  .footer-link:hover {
    color: #fff;
    transform: translateX(3px);
  }

  .footer-link:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 3px;
    border-radius: 4px;
    color: #fff;
  }

  .guide-cover {
    border-radius: 14px;
    overflow: hidden;
    background: var(--primary-100);
  }

  .stat-number {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
  }

  .time-tag {
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
  }

  @media (max-width: 1024px) {
    .section-padding {
      padding: 72px 0;
    }
  }

  @media (max-width: 640px) {
    .section-padding {
      padding: 56px 0;
    }

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

    .address-card {
      padding: 20px;
    }

    .faq-question {
      padding: 14px 16px;
      font-size: 0.9375rem;
    }

    .faq-item.open .faq-answer {
      padding: 0 16px 16px;
    }
  }

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

/* roulang page: article */
:root {
    --primary-900: #0B2F2F;
    --primary-700: #0E4B4B;
    --primary-600: #146060;
    --primary-100: #D6E5E2;
    --accent-600: #C0562A;
    --accent-500: #DB6B34;
    --accent-100: #F6DDCB;
    --page-bg: #F6F2EA;
    --surface: #FFFFFF;
    --ink: #172B2B;
    --muted: #5E716E;
    --line: #DCE4DF;
    --radius-card: 0.875rem;
    --shadow-card: 0 1px 2px rgba(11, 47, 47, 0.05);
    --shadow-card-hover: 0 12px 32px rgba(11, 47, 47, 0.10);
  }
  * {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--page-bg);
    color: var(--ink);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  a:hover {
    color: inherit;
  }
  img {
    max-width: 100%;
    display: block;
  }
  button,
  input {
    font-family: inherit;
    font-size: inherit;
  }
  :focus-visible {
    outline: 2px solid var(--accent-500);
    outline-offset: 2px;
  }
  .container-x {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: clamp(1rem, 4vw, 2rem);
    padding-right: clamp(1rem, 4vw, 2rem);
  }
  .site-header {
    background: rgba(11, 47, 47, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 4px 20px rgba(11, 47, 47, 0.12);
  }
  .brand-title {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.01em;
    line-height: 1.2;
  }
  .logo-badge {
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    background: var(--accent-600);
    color: #fff;
    font-weight: 900;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    letter-spacing: 0.02em;
  }
  .site-top-link {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.875rem;
    padding: 0.35rem 0.1rem;
    transition: color 0.2s;
    white-space: nowrap;
  }
  .site-top-link:hover {
    color: #fff;
  }
  .site-gate-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 0.45rem 1.1rem;
    border-radius: 999px;
    background: var(--accent-600);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 700;
    white-space: nowrap;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  }
  .site-gate-btn:hover {
    background: var(--accent-500);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(192, 86, 42, 0.28);
  }
  .site-gate-btn:active {
    transform: translateY(0);
    background: #A94E28;
  }
  .nav-scroll {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav-scroll::-webkit-scrollbar {
    display: none;
  }
  .nav-item {
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
    white-space: nowrap;
    transition: color 0.2s;
  }
  .nav-item:hover {
    color: #fff;
  }
  .nav-item.active {
    color: #fff;
    font-weight: 700;
  }
  .nav-item.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 3px;
    border-radius: 999px;
    background: var(--accent-500);
  }
  .mobile-menu-link {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    font-weight: 600;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: color 0.2s;
    display: block;
  }
  .mobile-menu-link:hover {
    color: #fff;
  }
  .mobile-menu-btn {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.06);
    transition: background 0.2s;
  }
  .mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.12);
  }
  .article-hero {
    background-color: var(--primary-900);
    background-size: cover;
    background-position: center;
    color: #fff;
    position: relative;
  }
  .article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(11, 47, 47, 0.97), rgba(14, 75, 75, 0.92) 58%, rgba(11, 47, 47, 0.88));
  }
  .article-hero .container-x {
    position: relative;
    z-index: 2;
  }
  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.56);
  }
  .breadcrumb a {
    color: rgba(255, 255, 255, 0.72);
    transition: color 0.2s;
  }
  .breadcrumb a:hover {
    color: #fff;
  }
  .breadcrumb-divider {
    color: rgba(255, 255, 255, 0.35);
  }
  .article-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.8rem);
    font-weight: 900;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin: 0;
    max-width: 960px;
  }
  .hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: rgba(255, 255, 255, 0.84);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
  }
  .hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    align-items: center;
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.875rem;
    font-variant-numeric: tabular-nums;
  }
  .meta-dot {
    width: 3px;
    height: 3px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.4);
  }
  .article-card-surface {
    background: var(--surface);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
  }
  .article-shell {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(11, 47, 47, 0.08);
  }
  .article-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--ink);
    word-break: break-word;
  }
  .article-content p {
    margin: 0 0 1.5rem;
  }
  .article-content h2 {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.4;
    margin: 2.5rem 0 1rem;
    color: var(--primary-900);
  }
  .article-content h3 {
    font-size: 1.1875rem;
    font-weight: 700;
    line-height: 1.5;
    margin: 2rem 0 0.75rem;
    color: var(--primary-700);
  }
  .article-content h4 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--primary-700);
    margin: 1.5rem 0 0.5rem;
  }
  .article-content ul,
  .article-content ol {
    margin: 0 0 1.5rem;
    padding-left: 1.4rem;
  }
  .article-content ul {
    list-style: disc;
  }
  .article-content ol {
    list-style: decimal;
  }
  .article-content li {
    margin-bottom: 0.5rem;
  }
  .article-content a {
    color: var(--primary-600);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
  }
  .article-content a:hover {
    color: var(--accent-600);
  }
  .article-content img {
    width: 100%;
    border-radius: 0.875rem;
    margin: 1.75rem 0 0.5rem;
  }
  .article-content figure {
    margin: 1.75rem 0;
  }
  .article-content figure img {
    margin: 0;
  }
  .article-content figcaption {
    text-align: center;
    color: var(--muted);
    font-size: 0.8125rem;
    padding-top: 0.5rem;
  }
  .article-content blockquote {
    margin: 1.75rem 0;
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--accent-500);
    background: #FAF4EC;
    border-radius: 0 0.75rem 0.75rem 0;
    color: #334846;
  }
  .article-content blockquote p {
    margin-bottom: 0;
  }
  .article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.75rem 0;
    font-size: 0.9375rem;
    background: #fff;
    border-radius: 0.75rem;
    overflow: hidden;
  }
  .article-content th,
  .article-content td {
    border: 1px solid var(--line);
    padding: 0.7rem 0.9rem;
    text-align: left;
  }
  .article-content th {
    background: var(--primary-100);
    font-weight: 700;
    color: var(--primary-900);
  }
  .article-content code {
    background: #EEF4EF;
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 0.15rem 0.4rem;
    font-size: 0.875em;
    font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  }
  .article-content pre {
    background: #0F2427;
    color: #E9F2EF;
    border-radius: 0.875rem;
    padding: 1.25rem;
    overflow-x: auto;
    font-size: 0.875rem;
    margin: 1.75rem 0;
  }
  .article-content pre code {
    background: transparent;
    border: 0;
    padding: 0;
    color: inherit;
  }
  .article-content hr {
    border: 0;
    margin: 2rem 0;
    height: 1px;
    background: var(--line);
  }
  .empty-article-icon {
    width: 56px;
    height: 56px;
    border-radius: 20px;
    background: var(--accent-100);
    color: var(--accent-600);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: 999px;
    background: var(--primary-600);
    color: #fff;
    font-weight: 700;
    padding: 0.6rem 1.6rem;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  }
  .btn-primary:hover {
    background: var(--primary-700);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(14, 75, 75, 0.22);
  }
  .btn-primary:active {
    transform: translateY(0);
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: 999px;
    background: transparent;
    border: 1px solid var(--primary-600);
    color: var(--primary-700);
    font-weight: 700;
    padding: 0.6rem 1.5rem;
    transition: background 0.2s, color 0.2s;
  }
  .btn-ghost:hover {
    background: var(--primary-100);
  }
  .tag-chip {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: #EEF4EF;
    border: 1px solid var(--line);
    color: var(--primary-700);
    font-size: 0.8125rem;
    padding: 0.3rem 0.875rem;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
  }
  .tag-chip:hover {
    background: var(--primary-100);
    border-color: var(--primary-100);
    color: var(--primary-900);
  }
  .footer-link {
    color: rgba(255, 255, 255, 0.52);
    font-size: 0.875rem;
    line-height: 2.1;
    transition: color 0.2s;
  }
  .footer-link:hover {
    color: #fff;
  }
  .related-card {
    display: block;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  }
  .related-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
    border-color: #C8D9D2;
  }
  .related-card-media {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--primary-100);
  }
  .related-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
  }
  .related-card:hover .related-card-media img {
    transform: scale(1.04);
  }
  .related-card-title {
    font-size: 1.0625rem;
    font-weight: 700;
    line-height: 1.5;
    color: var(--ink);
    transition: color 0.2s;
  }
  .related-card:hover .related-card-title {
    color: var(--primary-600);
  }
  @media (max-width: 1023px) {
    .brand-title {
      font-size: 0.925rem;
    }
    .nav-scroll {
      gap: 1.1rem;
    }
  }
  @media (max-width: 639px) {
    .article-content {
      font-size: 0.9688rem;
    }
    .article-content h2 {
      font-size: 1.3rem;
    }
  }

/* roulang page: category1 */
:root {
    --primary-900: #0B2F2F;
    --primary-700: #0E4B4B;
    --primary-600: #146060;
    --primary-100: #D6E5E2;
    --accent-600: #C0562A;
    --accent-500: #DB6B34;
    --accent-100: #F6DDCB;
    --page-bg: #F6F2EA;
    --surface: #FFFFFF;
    --ink: #172B2B;
    --muted: #5E716E;
    --line: #DCE4DF;
    --success: #12805C;
    --warning: #9A6A00;
    --radius-card: 0.875rem;
    --shadow-sm: 0 1px 2px rgba(11,47,47,0.05);
    --shadow-md: 0 12px 32px rgba(11,47,47,0.10);
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    min-height: 100vh;
    background: var(--page-bg);
    color: var(--ink);
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    font-size: 1rem;
    line-height: 1.8;
    font-variant-numeric: tabular-nums;
  }

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

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

  button, input {
    font: inherit;
  }

  .container-x {
    width: min(calc(100% - 2rem), 1200px);
    margin-inline: auto;
  }

  @media (max-width: 640px) {
    .container-x {
      width: calc(100% - 1.25rem);
    }
  }

  section {
    scroll-margin-top: 112px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
  }

  .topbar {
    background: var(--primary-900);
    color: #FFFFFF;
  }

  .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    background: var(--accent-600);
    color: #FFFFFF;
    font-weight: 900;
    font-size: 0.875rem;
    letter-spacing: 0.02em;
    flex-shrink: 0;
  }

  .brand-name {
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    white-space: nowrap;
    color: #FFFFFF;
  }

  .top-link {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 0.25rem;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.72);
    transition: color 0.2s ease;
  }

  .top-link:hover {
    color: #FFFFFF;
  }

  .header-search {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    height: 36px;
    padding: 0 0.875rem;
    border: 1px solid rgba(255,255,255,0.16);
    border-radius: 999px;
    background: rgba(255,255,255,0.08);
    transition: background 0.2s ease, border-color 0.2s ease;
  }

  .header-search:focus-within {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.4);
  }

  .header-search input {
    width: 150px;
    background: transparent;
    border: 0;
    outline: none;
    color: #FFFFFF;
    font-size: 0.8125rem;
    line-height: 1;
  }

  .header-search input::placeholder {
    color: rgba(255,255,255,0.5);
  }

  .channel-bar {
    background: rgba(255,255,255,0.96);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 2px 8px rgba(11,47,47,0.04);
  }

  .nav-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 0.875rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--ink);
    border-radius: 999px;
    transition: background 0.2s ease, color 0.2s ease;
    position: relative;
  }

  .nav-item:hover {
    color: var(--primary-700);
    background: var(--primary-100);
  }

  .nav-item.active {
    background: var(--primary-700);
    color: #FFFFFF;
    font-weight: 700;
  }

  .status-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 999px;
    background: #36B37E;
    box-shadow: 0 0 0 3px rgba(54,179,126,0.14);
    display: inline-block;
  }

  .mobile-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    margin-left: auto;
    border-radius: 0.625rem;
    border: 1px solid rgba(255,255,255,0.2);
    color: #FFFFFF;
    background: rgba(255,255,255,0.08);
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
  }

  .mobile-toggle:hover {
    background: rgba(255,255,255,0.16);
  }

  .mobile-toggle:focus-visible,
  .btn:focus-visible,
  .nav-item:focus-visible,
  .faq-question:focus-visible,
  .top-link:focus-visible,
  .footer-link:focus-visible,
  .copy-btn:focus-visible {
    outline: 2px solid var(--accent-500);
    outline-offset: 2px;
  }

  .mobile-panel {
    display: none;
    background: var(--primary-900);
    color: #FFFFFF;
    border-top: 1px solid rgba(255,255,255,0.08);
  }

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

  .mobile-nav-link {
    display: block;
    padding: 0.75rem 0.25rem;
    color: rgba(255,255,255,0.9);
    font-weight: 600;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: color 0.2s ease, padding-left 0.2s ease;
  }

  .mobile-nav-link:hover {
    color: #FFFFFF;
    padding-left: 0.5rem;
  }

  .mobile-nav-link.active {
    color: #FFFFFF;
  }

  .mobile-quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    padding-top: 1rem;
  }

  .mobile-quick-links a {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 0.875rem;
    border-radius: 999px;
    background: rgba(255,255,255,0.1);
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.84);
  }

  @media (max-width: 1023.98px) {
    .desktop-actions {
      display: none !important;
    }
    .mobile-toggle {
      display: inline-flex;
    }
    .channel-bar {
      display: none;
    }
  }

  /* Hero */
  .hero-with-bg {
    background-image: linear-gradient(180deg, rgba(246,242,234,0.92), rgba(246,242,234,0.96)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--accent-600);
    margin-bottom: 1rem;
  }

  .eyebrow::before {
    content: "";
    display: inline-block;
    width: 1.75rem;
    height: 2px;
    border-radius: 999px;
    background: var(--accent-500);
  }

  .h1-title {
    margin: 0;
    font-size: clamp(1.75rem, 4vw, 3rem);
    font-weight: 900;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--ink);
    overflow-wrap: break-word;
  }

  .hero-lead {
    color: var(--muted);
    font-size: 1.0625rem;
    max-width: 620px;
    line-height: 1.9;
    margin-top: 1.25rem;
    margin-bottom: 1.75rem;
  }

  .hero-note {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px dashed var(--line);
    color: var(--muted);
    font-size: 0.875rem;
    max-width: 600px;
  }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 44px;
    padding: 0.625rem 1.375rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  }

  .btn-primary {
    background: var(--primary-700);
    color: #FFFFFF;
  }

  .btn-primary:hover {
    background: var(--primary-600);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(11,47,47,0.18);
  }

  .btn-secondary {
    background: var(--surface);
    color: var(--primary-700);
    border-color: var(--primary-700);
  }

  .btn-secondary:hover {
    background: var(--primary-100);
    transform: translateY(-2px);
  }

  .btn-accent {
    background: var(--accent-600);
    color: #FFFFFF;
  }

  .btn-accent:hover {
    background: var(--accent-500);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(219,107,52,0.24);
  }

  .btn-white {
    background: #FFFFFF;
    color: var(--primary-900);
  }

  .btn-white:hover {
    background: rgba(255,255,255,0.88);
    transform: translateY(-2px);
  }

  .btn-sm {
    min-height: 38px;
    padding: 0.375rem 1rem;
    font-size: 0.875rem;
  }

  .btn:active {
    transform: translateY(0);
    box-shadow: none;
  }

  /* Address card */
  .address-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 1.375rem;
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
  }

  .address-card::after {
    content: "";
    position: absolute;
    top: 14px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-top: 2px solid var(--accent-500);
    border-right: 2px solid var(--accent-500);
    border-radius: 0 8px 0 0;
    opacity: 0.55;
    pointer-events: none;
  }

  .address-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
  }

  .card-title {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 800;
  }

  .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #FFFFFF;
    background: var(--success);
    white-space: nowrap;
  }

  .address-domain-box {
    background: var(--primary-100);
    border: 1px solid rgba(11,47,47,0.08);
    border-radius: 0.875rem;
    padding: 1rem 1.125rem;
    margin-bottom: 1rem;
  }

  .address-label {
    font-size: 0.8125rem;
    color: var(--primary-600);
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 0.25rem;
  }

  .address-domain {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    font-weight: 900;
    line-height: 1.3;
    color: var(--primary-900);
    word-break: break-all;
    letter-spacing: 0.01em;
  }

  .address-hint {
    color: var(--muted);
    font-size: 0.8125rem;
    margin: 0.875rem 0 0;
    line-height: 1.75;
  }

  /* Sections */
  .section-spacing {
    padding: 80px 0;
  }

  @media (max-width: 767.98px) {
    .section-spacing {
      padding: 48px 0;
    }
  }

  .section-heading {
    max-width: 780px;
    margin-bottom: 2.25rem;
  }

  .section-title {
    margin: 0.25rem 0 0.875rem;
    font-size: clamp(1.375rem, 2.5vw, 2.125rem);
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: var(--ink);
  }

  .section-lead {
    color: var(--muted);
    margin: 0;
    max-width: 720px;
    line-height: 1.85;
  }

  /* Cards */
  .surface-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

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

  .card-copy {
    padding: 1.5rem;
  }

  .card-kicker {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--accent-600);
    margin-bottom: 0.5rem;
  }

  .card-copy h3 {
    margin: 0 0 0.625rem;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.45;
  }

  .card-copy p {
    margin: 0;
    color: var(--muted);
    font-size: 0.9375rem;
    line-height: 1.8;
  }

  .scenario-split {
    display: grid;
  }

  .scenario-copy {
    padding: 1.75rem;
  }

  @media (min-width: 768px) {
    .scenario-split {
      grid-template-columns: 1fr 1fr;
    }
    .scenario-thumb {
      min-height: 100%;
    }
  }

  .scenario-thumb img {
    width: 100%;
    height: 100%;
    min-height: 220px;
    object-fit: cover;
  }

  .soft-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-top: 1rem;
    color: var(--primary-600);
    font-weight: 600;
    font-size: 0.875rem;
    border-bottom: 1px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
  }

  .soft-link:hover {
    color: var(--accent-600);
    border-color: var(--accent-500);
  }

  /* Steps */
  .steps-grid {
    position: relative;
    display: grid;
    gap: 1.5rem;
  }

  @media (min-width: 1024px) {
    .steps-grid {
      grid-template-columns: repeat(3, 1fr);
      align-items: start;
    }
    .step-offset-sm {
      margin-top: 1.5rem;
    }
    .step-offset-lg {
      margin-top: 3rem;
    }
  }

  .step-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 1.75rem 1.5rem 1.5rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

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

  .step-number {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: 0.02em;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--primary-700);
    opacity: 0.7;
    margin-bottom: 1.25rem;
  }

  .step-tag {
    display: inline-flex;
    padding: 0.125rem 0.625rem;
    border-radius: 999px;
    background: var(--accent-100);
    color: var(--accent-600);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.625rem;
  }

  .step-card h3 {
    margin: 0 0 0.625rem;
    font-size: 1.125rem;
    font-weight: 700;
  }

  .step-card p {
    margin: 0;
    color: var(--muted);
    font-size: 0.9375rem;
    line-height: 1.8;
  }

  .check-note {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    background: #FFF7ED;
    border: 1px solid var(--accent-100);
    border-left: 4px solid var(--accent-500);
    border-radius: 0.875rem;
    padding: 1rem 1.25rem;
    margin-top: 2.25rem;
    color: #4B2A1A;
  }

  .check-note strong {
    color: var(--accent-600);
    font-weight: 700;
  }

  .check-note p {
    margin: 0;
    font-size: 0.9375rem;
  }

  /* FAQ */
  .faq-wrap {
    max-width: 780px;
    margin-inline: auto;
  }

  .faq-item {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 1rem;
    overflow: hidden;
    margin-bottom: 1rem;
    transition: border-color 0.2s ease;
  }

  .faq-item.open {
    border-color: rgba(20,96,96,0.35);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    text-align: left;
    padding: 1rem 1.25rem;
    background: transparent;
    border: 0;
    color: var(--ink);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.6;
    cursor: pointer;
    min-height: 56px;
    transition: background 0.2s ease;
  }

  .faq-question:hover {
    background: rgba(11,47,47,0.02);
  }

  .faq-icon {
    position: relative;
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    margin-left: auto;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--primary-600);
    border-radius: 999px;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .faq-icon::before {
    width: 12px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .faq-icon::after {
    width: 2px;
    height: 12px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .faq-item.open .faq-icon::after {
    transform: translate(-50%, -50%) scaleY(0);
    opacity: 0;
  }

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

  .faq-answer-inner {
    padding: 0 1.25rem 1.25rem;
    color: var(--muted);
    font-size: 0.9375rem;
    line-height: 1.85;
  }

  /* CTA */
  .cta-panel {
    position: relative;
    background: var(--primary-900);
    border-radius: 1.5rem;
    overflow: hidden;
    padding: 2rem;
    color: #FFFFFF;
  }

  .cta-panel::before,
  .cta-panel::after {
    content: "";
    position: absolute;
    border: 2px dashed rgba(255,255,255,0.16);
    border-radius: 50%;
    pointer-events: none;
  }

  .cta-panel::before {
    width: 220px;
    height: 220px;
    top: -90px;
    right: -40px;
  }

  .cta-panel::after {
    width: 120px;
    height: 120px;
    bottom: -50px;
    right: 120px;
    border-style: dotted;
  }

  .cta-panel h2 {
    position: relative;
    z-index: 1;
    margin: 0 0 0.875rem;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    line-height: 1.3;
  }

  .cta-panel p {
    position: relative;
    z-index: 1;
    margin: 0 0 1.5rem;
    color: rgba(255,255,255,0.72);
    max-width: 640px;
    line-height: 1.8;
  }

  @media (min-width: 1024px) {
    .cta-panel {
      padding: 3rem 3.5rem;
    }
  }

  /* Footer */
  .footer-link {
    display: inline-block;
    padding: 0.25rem 0;
    color: rgba(255,255,255,0.55);
    font-size: 0.875rem;
    transition: color 0.2s ease, padding-left 0.2s ease;
  }

  .footer-link:hover {
    color: #FFFFFF;
    padding-left: 0.25rem;
  }

/* roulang page: category2 */
:root{
    --primary-900:#0B2F2F;
    --primary-700:#0E4B4B;
    --primary-600:#146060;
    --primary-100:#D6E5E2;
    --accent-600:#C0562A;
    --accent-500:#DB6B34;
    --accent-100:#F6DDCB;
    --page-bg:#F6F2EA;
    --surface:#FFFFFF;
    --ink:#172B2B;
    --muted:#5E716E;
    --line:#DCE4DF;
    --success:#12805C;
    --warning:#9A6A00;
    --radius-card:0.875rem;
    --shadow-card:0 1px 2px rgba(11,47,47,0.05);
    --shadow-hover:0 12px 32px rgba(11,47,47,0.10);
  }

  html{
    scroll-behavior:smooth;
    -webkit-text-size-adjust:100%;
  }

  *{
    box-sizing:border-box;
  }

  body{
    margin:0;
    background:var(--page-bg);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    line-height:1.7;
    font-size:1rem;
  }

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

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

  button,input{
    font-family:inherit;
  }

  .container-x{
    max-width:1280px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }

  .eyebrow{
    font-size:0.8125rem;
    font-weight:700;
    letter-spacing:0.08em;
    color:var(--accent-600);
  }

  .nav-item{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:44px;
    padding:0 8px;
    font-weight:600;
    color:var(--primary-900);
    border-radius:0.5rem;
    transition:color .2s,background-color .2s;
  }

  .nav-item:hover{
    background:var(--primary-100);
    color:var(--primary-700);
  }

  .nav-item:focus-visible,
  .footer-link:focus-visible{
    outline:2px solid var(--accent-500);
    outline-offset:3px;
    border-radius:4px;
  }

  .nav-item.active{
    color:var(--primary-900);
    font-weight:800;
  }

  .nav-item.active::after{
    content:"";
    position:absolute;
    left:8px;
    right:8px;
    bottom:-2px;
    height:3px;
    border-radius:999px;
    background:var(--accent-600);
  }

  .mobile-nav-link{
    display:flex;
    align-items:center;
    min-height:48px;
    padding:0 10px;
    font-weight:700;
    color:var(--primary-900);
    border-bottom:1px solid var(--line);
  }

  .mobile-nav-link:hover{
    background:var(--primary-100);
  }

  .mobile-nav-link.active{
    background:var(--primary-100);
    color:var(--primary-900);
  }

  .btn-primary,
  .btn-outline,
  .btn-accent,
  .btn-light{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 22px;
    border-radius:999px;
    font-weight:700;
    line-height:1;
    transition:transform .2s,box-shadow .2s,background-color .2s,color .2s;
  }

  .btn-primary{
    background:var(--accent-600);
    color:#fff;
  }

  .btn-primary:hover{
    background:var(--accent-500);
    transform:translateY(-2px);
    box-shadow:0 8px 20px rgba(192,86,42,0.28);
  }

  .btn-outline{
    border:1px solid rgba(255,255,255,0.35);
    color:#fff;
    background:rgba(255,255,255,0.04);
  }

  .btn-outline:hover{
    border-color:#fff;
    background:rgba(255,255,255,0.12);
  }

  .btn-accent{
    background:var(--primary-900);
    color:#fff;
  }

  .btn-accent:hover{
    background:var(--primary-700);
    transform:translateY(-2px);
  }

  .btn-light{
    background:#fff;
    color:var(--primary-900);
  }

  .btn-light:hover{
    background:var(--primary-100);
    transform:translateY(-2px);
  }

  .footer-link{
    display:inline-flex;
    align-items:center;
    min-height:36px;
    color:rgba(255,255,255,0.62);
    font-size:0.875rem;
    transition:color .2s,padding-left .2s;
  }

  .footer-link:hover{
    color:#fff;
    padding-left:8px;
  }

  .tag{
    display:inline-flex;
    align-items:center;
    gap:6px;
    border-radius:999px;
    padding:6px 14px;
    font-size:0.8125rem;
    font-weight:700;
    letter-spacing:0.04em;
  }

  .card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:transform .25s,box-shadow .25s,border-color .25s;
  }

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

  .timeline-wrap{
    position:relative;
  }

  .timeline-wrap::before{
    content:"";
    position:absolute;
    left:11px;
    top:4px;
    bottom:4px;
    width:2px;
    background:linear-gradient(to bottom,var(--primary-600),var(--primary-100));
    border-radius:999px;
  }

  .timeline-item{
    position:relative;
    padding-left:40px;
  }

  .timeline-item::before{
    content:"";
    position:absolute;
    left:0;
    top:8px;
    width:24px;
    height:24px;
    border-radius:999px;
    background:var(--surface);
    border:2px solid var(--primary-600);
    box-shadow:0 0 0 5px rgba(20,96,96,0.12);
  }

  .timeline-item.featured::before{
    border-color:var(--accent-600);
    background:var(--accent-600);
  }

  .timeline-dot-solid{
    position:absolute;
    left:6px;
    top:15px;
    width:12px;
    height:12px;
    border-radius:999px;
    background:var(--accent-600);
    border:2px solid #fff;
    z-index:1;
  }

  details.faq-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:0.875rem;
    overflow:hidden;
    transition:border-color .2s,box-shadow .2s;
  }

  details.faq-item:hover{
    border-color:var(--primary-100);
    box-shadow:0 12px 30px rgba(11,47,47,0.06);
  }

  details.faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    gap:14px;
    align-items:center;
    justify-content:space-between;
    padding:18px 20px;
    font-weight:700;
    line-height:1.5;
  }

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

  details.faq-item summary:focus-visible{
    outline:2px solid var(--accent-500);
    outline-offset:-2px;
  }

  details.faq-item .faq-icon{
    flex:0 0 auto;
    position:relative;
    width:28px;
    height:28px;
    border-radius:999px;
    background:var(--primary-100);
    color:var(--primary-700);
  }

  details.faq-item .faq-icon::before,
  details.faq-item .faq-icon::after{
    content:"";
    position:absolute;
    top:50%;
    left:50%;
    width:12px;
    height:2px;
    background:currentColor;
    transform:translate(-50%,-50%);
    border-radius:999px;
    transition:transform .2s;
  }

  details.faq-item .faq-icon::after{
    transform:translate(-50%,-50%) rotate(90deg);
  }

  details.faq-item[open] .faq-icon::after{
    transform:translate(-50%,-50%) rotate(0deg);
  }

  details.faq-item .faq-answer{
    padding:0 20px 20px;
    color:var(--muted);
    font-size:0.9375rem;
    line-height:1.85;
  }

  .input-email{
    min-height:48px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,0.18);
    background:rgba(255,255,255,0.09);
    padding:0 20px;
    color:#fff;
    font-size:0.9375rem;
    width:100%;
    transition:border-color .2s,background-color .2s;
  }

  .input-email::placeholder{
    color:rgba(255,255,255,0.5);
  }

  .input-email:focus{
    outline:none;
    border-color:var(--accent-500);
    background:rgba(255,255,255,0.14);
  }

  .tabular{
    font-variant-numeric:tabular-nums;
  }

  .dashed-pattern{
    background-image:radial-gradient(rgba(255,255,255,0.12) 1px,transparent 1px);
    background-size:24px 24px;
  }

  :focus-visible{
    outline:2px solid var(--accent-500);
    outline-offset:2px;
  }

  @media (max-width:1023px){
    .desktop-nav{
      display:none;
    }
    .mobile-menu-trigger{
      display:inline-flex;
    }
  }

  @media (min-width:1024px){
    .mobile-menu-trigger{
      display:none;
    }
  }

  @media (max-width:640px){
    .container-x{
      padding-left:16px;
      padding-right:16px;
    }
  }

/* roulang page: category3 */
:root {
      --primary-900: #0B2F2F;
      --primary-700: #0E4B4B;
      --primary-600: #146060;
      --primary-100: #D6E5E2;
      --accent-600: #C0562A;
      --accent-500: #DB6B34;
      --accent-100: #F6DDCB;
      --page-bg: #F6F2EA;
      --surface: #FFFFFF;
      --ink: #172B2B;
      --muted: #5E716E;
      --line: #DCE4DF;
      --success: #12805C;
      --warning: #9A6A00;
      --radius-card: 0.875rem;
      --radius-btn: 999px;
      --shadow-card: 0 1px 2px rgba(11, 47, 47, 0.05);
      --shadow-card-hover: 0 12px 32px rgba(11, 47, 47, 0.10);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background: var(--page-bg);
      color: var(--ink);
      line-height: 1.8;
      font-size: 1rem;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button,
    input {
      font-family: inherit;
      font-size: inherit;
    }

    ul {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .container-x {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    @media (max-width: 640px) {
      .container-x {
        padding-left: 20px;
        padding-right: 20px;
      }
    }

    .section-spacing {
      padding-top: 88px;
      padding-bottom: 88px;
    }

    @media (max-width: 768px) {
      .section-spacing {
        padding-top: 48px;
        padding-bottom: 48px;
      }
    }

    section[id] {
      scroll-margin-top: 8rem;
    }

    .site-header {
      background: rgba(255, 255, 255, 0.96);
      transition: box-shadow 0.2s ease;
    }

    .site-header.is-scrolled {
      box-shadow: 0 6px 24px rgba(11, 47, 47, 0.08);
    }

    .brand-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 2.125rem;
      height: 2.125rem;
      border-radius: 999px;
      background: var(--accent-600);
      color: #fff;
      font-weight: 900;
      font-size: 0.875rem;
      letter-spacing: 0.02em;
      flex-shrink: 0;
    }

    .brand-name {
      font-size: 1.0625rem;
      font-weight: 800;
      color: var(--primary-900);
      white-space: nowrap;
      letter-spacing: -0.01em;
    }

    .top-mini-link {
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--muted);
      padding: 0.5rem 0.75rem;
      border-radius: 999px;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .top-mini-link:hover,
    .top-mini-link:focus-visible {
      color: var(--primary-700);
      background: var(--primary-100);
      outline: none;
    }

    .header-search {
      display: flex;
      align-items: center;
      width: 230px;
      height: 36px;
      background: var(--page-bg);
      border: 1px solid transparent;
      border-radius: 999px;
      padding: 0 8px 0 14px;
      transition: border-color 0.2s ease, background 0.2s ease;
    }

    .header-search:focus-within {
      border-color: rgba(20, 96, 96, 0.35);
      background: #fff;
    }

    .header-search input {
      width: 100%;
      min-width: 0;
      border: 0;
      background: transparent;
      outline: none;
      font-size: 0.875rem;
      color: var(--ink);
    }

    .header-search button {
      border: 0;
      background: transparent;
      color: var(--muted);
      width: 32px;
      height: 32px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: color 0.2s;
    }

    .header-search button:hover,
    .header-search button:focus-visible {
      color: var(--accent-600);
      outline: none;
    }

    .nav-item {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--muted);
      padding: 0.25rem 0.125rem;
      height: 100%;
      transition: color 0.2s ease;
      line-height: 2.75rem;
      white-space: nowrap;
    }

    .nav-item:hover {
      color: var(--primary-700);
    }

    .nav-item:focus-visible {
      outline: 2px solid var(--accent-500);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .nav-item.active {
      color: var(--primary-600);
      font-weight: 700;
    }

    .nav-item.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 2px;
      border-radius: 2px;
      background: var(--accent-600);
    }

    .menu-icon-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border-radius: 999px;
      color: var(--primary-900);
    }

    .menu-icon-btn:hover,
    .menu-icon-btn:focus-visible {
      background: var(--primary-100);
      outline: none;
    }

    .mobile-nav {
      display: none;
      background: #fff;
      border-top: 1px solid var(--line);
      padding-top: 1rem;
      padding-bottom: 1.25rem;
    }

    .mobile-nav.is-open {
      display: block;
    }

    .mobile-search {
      display: flex;
      align-items: center;
      height: 42px;
      background: var(--page-bg);
      border-radius: 999px;
      padding: 0 10px 0 16px;
    }

    .mobile-search input {
      flex: 1;
      min-width: 0;
      border: 0;
      background: transparent;
      outline: none;
      font-size: 0.9375rem;
    }

    .mobile-search button {
      border: 0;
      background: transparent;
      color: var(--muted);
      padding: 4px 10px;
      cursor: pointer;
    }

    .mobile-nav-link {
      display: block;
      font-size: 1rem;
      font-weight: 600;
      padding: 0.75rem 0.5rem;
      border-radius: 0.75rem;
      color: var(--primary-700);
    }

    .mobile-nav-link.active {
      background: var(--primary-100);
      color: var(--primary-900);
    }

    .mobile-nav-link:hover,
    .mobile-nav-link:focus-visible {
      background: var(--accent-100);
      outline: none;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      min-height: 44px;
      padding: 0.625rem 1.5rem;
      border-radius: 999px;
      font-weight: 700;
      font-size: 0.9375rem;
      border: 0;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s;
    }

    .btn-primary {
      background: var(--primary-700);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--primary-600);
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(11, 47, 47, 0.18);
    }

    .btn-primary:focus-visible,
    .btn-accent:focus-visible,
    .btn-outline-white:focus-visible {
      outline: 2px solid var(--accent-500);
      outline-offset: 3px;
    }

    .btn-accent {
      background: var(--accent-600);
      color: #fff;
    }

    .btn-accent:hover {
      background: var(--accent-500);
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(192, 86, 42, 0.24);
    }

    .btn-outline-white {
      border: 1px solid rgba(255, 255, 255, 0.35);
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
    }

    .btn-outline-white:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.6);
      transform: translateY(-2px);
    }

    .page-hero {
      position: relative;
      background-color: var(--primary-900);
      background-image: linear-gradient(108deg, rgba(11, 47, 47, 0.94) 0%, rgba(14, 75, 75, 0.86) 48%, rgba(11, 47, 47, 0.58) 100%), url('/assets/images/backpic/back-3.webp');
      background-size: cover;
      background-position: center;
      padding-top: 88px;
      padding-bottom: 84px;
      color: #fff;
      overflow: hidden;
    }

    @media (max-width: 768px) {
      .page-hero {
        padding-top: 54px;
        padding-bottom: 54px;
      }
    }

    .page-hero::after {
      content: "";
      position: absolute;
      right: -80px;
      top: -80px;
      width: 260px;
      height: 260px;
      border-radius: 999px;
      border: 42px solid rgba(214, 229, 226, 0.08);
      pointer-events: none;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.8125rem;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: #f6d9c8;
      padding: 0.375rem 0.875rem;
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 999px;
      background: rgba(11, 47, 47, 0.25);
    }

    .page-hero h1 {
      margin-top: 20px;
      margin-bottom: 18px;
      font-size: clamp(1.75rem, 4vw, 3rem);
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.02em;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
    }

    .page-hero .hero-lead {
      font-size: 1.0625rem;
      color: rgba(255, 255, 255, 0.86);
      max-width: 660px;
      margin-bottom: 24px;
      line-height: 1.9;
    }

    .hero-meta {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.875rem;
      color: rgba(255, 255, 255, 0.86);
      font-variant-numeric: tabular-nums;
      background: rgba(255, 255, 255, 0.1);
      padding: 0.5rem 1rem;
      border-radius: 999px;
      margin-bottom: 22px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.8125rem;
      font-weight: 600;
      padding: 0.375rem 0.875rem;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.24);
      color: #fff;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--accent-600);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      margin-bottom: 10px;
    }

    .section-kicker::before {
      content: "";
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--accent-600);
    }

    h2 {
      font-size: clamp(1.375rem, 2.5vw, 2.125rem);
      font-weight: 800;
      line-height: 1.3;
      color: var(--primary-900);
      letter-spacing: -0.02em;
      margin: 0;
    }

    h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-900);
      line-height: 1.5;
    }

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

    .card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .feature-card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 26px;
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      height: 100%;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: rgba(20, 96, 96, 0.25);
    }

    .feature-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      font-size: 1.125rem;
      color: #fff;
      background: var(--primary-700);
      flex-shrink: 0;
    }

    .accent-icon {
      background: var(--accent-600);
    }

    .soft-icon {
      background: var(--accent-100);
      color: var(--accent-600);
    }

    .read-link {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-weight: 700;
      font-size: 0.9375rem;
      color: var(--primary-600);
      margin-top: 0.625rem;
      transition: color 0.2s ease, gap 0.2s ease;
    }

    .read-link:hover,
    .read-link:focus-visible {
      color: var(--accent-600);
      gap: 0.7rem;
      outline: none;
    }

    .timeline-list {
      position: relative;
      max-width: 860px;
      margin-top: 48px;
      margin-bottom: 0;
    }

    .timeline-list::before {
      content: "";
      position: absolute;
      left: 8px;
      top: 10px;
      bottom: 4px;
      width: 2px;
      border-radius: 2px;
      background: linear-gradient(to bottom, rgba(20, 96, 96, 0.42), rgba(20, 96, 96, 0.06));
    }

    .timeline-item {
      position: relative;
      padding-left: 40px;
      padding-bottom: 42px;
    }

    .timeline-item:last-child {
      padding-bottom: 0;
    }

    .timeline-dot {
      position: absolute;
      left: 0;
      top: 6px;
      width: 18px;
      height: 18px;
      border-radius: 999px;
      background: #fff;
      border: 4px solid var(--primary-600);
      box-shadow: 0 0 0 3px rgba(20, 96, 96, 0.15);
    }

    .timeline-line-item {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 26px 28px;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .tl-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.625rem 0.875rem;
      margin-bottom: 12px;
    }

    .tl-date {
      display: inline-flex;
      align-items: center;
      gap: 0.375rem;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--primary-700);
      background: var(--primary-100);
      border-radius: 999px;
      padding: 0.25rem 0.75rem;
      font-variant-numeric: tabular-nums;
    }

    .tl-tag {
      display: inline-flex;
      align-items: center;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--accent-600);
      background: var(--accent-100);
      border-radius: 999px;
      padding: 0.25rem 0.75rem;
    }

    .timeline-line-item h3 {
      margin-bottom: 8px;
    }

    .timeline-line-item p {
      margin: 0;
      color: var(--muted);
      line-height: 1.85;
      font-size: 0.9375rem;
    }

    .list-check {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 14px;
    }

    .list-check li {
      display: flex;
      gap: 0.75rem;
      align-items: flex-start;
      padding: 14px 16px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      color: var(--ink);
      font-size: 0.9375rem;
      line-height: 1.7;
    }

    .list-check li .fa-circle-check {
      color: var(--success);
      margin-top: 4px;
      flex-shrink: 0;
    }

    .list-check-number {
      counter-reset: check;
    }

    .list-check-number li {
      counter-increment: check;
    }

    .list-check-number li::before {
      content: "0" counter(check);
      font-weight: 900;
      font-size: 1rem;
      color: #fff;
      background: var(--primary-700);
      border-radius: 999px;
      width: 34px;
      height: 34px;
      min-width: 34px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-top: 2px;
    }

    .step-num {
      font-weight: 900;
      color: var(--accent-600);
      font-variant-numeric: tabular-nums;
    }

    .warning-strip {
      display: flex;
      gap: 16px;
      align-items: flex-start;
      background: #FFF6E8;
      border: 1px solid #F0D4A8;
      border-left: 5px solid var(--warning);
      border-radius: 1rem;
      padding: 24px 26px;
    }

    .warning-strip i {
      color: var(--warning);
      font-size: 1.375rem;
      margin-top: 4px;
    }

    .domain-chip {
      display: inline-flex;
      align-items: center;
      font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--primary-900);
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 6px;
      padding: 0.125rem 0.5rem;
      margin: 0 0.25rem;
    }

    .faq-wrap {
      display: grid;
      gap: 14px;
      max-width: 860px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 0.875rem;
      overflow: hidden;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .faq-item.open {
      border-color: rgba(20, 96, 96, 0.35);
      box-shadow: 0 10px 24px rgba(11, 47, 47, 0.08);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      padding: 17px 22px;
      text-align: left;
      background: transparent;
      border: 0;
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary-900);
      cursor: pointer;
      min-height: 52px;
    }

    .faq-question:hover {
      color: var(--accent-600);
    }

    .faq-question:focus-visible {
      outline: 2px solid var(--accent-500);
      outline-offset: -4px;
      border-radius: 0.875rem;
    }

    .faq-icon {
      width: 26px;
      height: 26px;
      border-radius: 999px;
      background: var(--primary-100);
      color: var(--primary-700);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.875rem;
      flex-shrink: 0;
      transition: transform 0.3s ease, background 0.3s ease;
    }

    .faq-item.open .faq-icon {
      transform: rotate(180deg);
      background: var(--accent-100);
      color: var(--accent-600);
    }

    .faq-answer {
      display: grid;
      grid-template-rows: 0fr;
      transition: grid-template-rows 0.3s ease;
    }

    .faq-item.open .faq-answer {
      grid-template-rows: 1fr;
    }

    .faq-answer-inner {
      overflow: hidden;
      padding: 0 22px;
    }

    .faq-answer p {
      color: var(--muted);
      font-size: 0.9375rem;
      line-height: 1.8;
      margin: 0;
      padding-bottom: 22px;
      border-top: 1px solid var(--line);
      padding-top: 14px;
    }

    .cta-section {
      position: relative;
      background-color: var(--primary-900);
      background-image: radial-gradient(circle at 12% 22%, rgba(219, 107, 52, 0.2) 0%, transparent 32%), radial-gradient(circle at 88% 10%, rgba(20, 96, 96, 0.4) 0%, transparent 36%);
      color: #fff;
      overflow: hidden;
    }

    .subscribe-form {
      display: flex;
      gap: 10px;
      max-width: 480px;
      width: 100%;
    }

    .subscribe-input {
      flex: 1;
      min-width: 0;
      height: 48px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.22);
      background: rgba(255, 255, 255, 0.08);
      padding: 0 18px;
      color: #fff;
      outline: none;
      font-size: 0.9375rem;
    }

    .subscribe-input::placeholder {
      color: rgba(255, 255, 255, 0.55);
    }

    .subscribe-input:focus {
      border-color: rgba(255, 255, 255, 0.55);
      background: rgba(255, 255, 255, 0.12);
    }

    .footer-link {
      display: inline-block;
      color: rgba(255, 255, 255, 0.56);
      font-size: 0.875rem;
      line-height: 2.4;
      transition: color 0.2s ease, transform 0.2s ease;
    }

    .footer-link:hover,
    .footer-link:focus-visible {
      color: #fff;
      outline: none;
    }

    @media (max-width: 767px) {
      .brand-name {
        font-size: 0.9375rem;
      }
    }