/* roulang page: index */
:root {
      --bg: #fbf7f2;
      --surface: #ffffff;
      --surface-soft: #fff4ea;
      --text: #231f20;
      --muted: #6f6361;
      --primary: #b3264b;
      --primary-dark: #841c38;
      --accent: #0f766e;
      --accent-soft: #d9f4ef;
      --gold: #c28a26;
      --border: rgba(35, 31, 32, .12);
      --shadow: 0 22px 60px rgba(35, 31, 32, .12);
      --shadow-soft: 0 12px 30px rgba(35, 31, 32, .08);
      --radius: 18px;
      --radius-sm: 10px;
      --container: 1180px;
      --header-h: 76px;
      --ease: 180ms ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      background: var(--bg);
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
      line-height: 1.7;
      text-rendering: optimizeLegibility;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(15, 118, 110, .32);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(251, 247, 242, .92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border);
    }

    .nav-wrap {
      height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      font-weight: 900;
      color: var(--text);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      box-shadow: 0 10px 22px rgba(179, 38, 75, .24);
    }

    .brand-text {
      font-size: 18px;
      letter-spacing: 0;
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
      flex: 1;
    }

    .main-nav a {
      padding: 10px 13px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      transition: background var(--ease), color var(--ease), transform var(--ease);
      white-space: nowrap;
    }

    .main-nav a:hover,
    .main-nav a.active {
      background: var(--surface-soft);
      color: var(--primary-dark);
    }

    .main-nav a:active {
      transform: translateY(1px);
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--surface);
      border: 1px solid var(--border);
      color: var(--text);
    }

    .nav-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      margin: 5px auto;
      background: currentColor;
      border-radius: 999px;
    }

    .hero {
      position: relative;
      min-height: calc(100vh - var(--header-h));
      display: flex;
      align-items: center;
      overflow: hidden;
      background-image: linear-gradient(90deg, rgba(35,31,32,.84), rgba(35,31,32,.54), rgba(35,31,32,.18)), url("/assets/images/backpic/back-1.webp");
      background-size: cover;
      background-position: center;
      color: #fff;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 160px;
      background: linear-gradient(180deg, transparent, var(--bg));
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      padding: 76px 0 120px;
      max-width: 850px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.14);
      border: 1px solid rgba(255,255,255,.24);
      color: rgba(255,255,255,.92);
      font-size: 13px;
      font-weight: 800;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #5eead4;
    }

    h1 {
      margin-top: 24px;
      font-size: clamp(42px, 7vw, 86px);
      line-height: 1.04;
      letter-spacing: 0;
      max-width: 780px;
    }

    .hero p {
      margin-top: 24px;
      max-width: 700px;
      color: rgba(255,255,255,.88);
      font-size: 18px;
    }

    .hero-actions {
      margin-top: 34px;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 999px;
      font-weight: 850;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
    }

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

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

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 14px 28px rgba(179, 38, 75, .28);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
    }

    .btn-light {
      background: rgba(255,255,255,.92);
      color: var(--text);
    }

    .btn-outline {
      background: transparent;
      color: var(--primary-dark);
      border-color: rgba(179, 38, 75, .28);
    }

    .btn-outline:hover {
      background: var(--surface-soft);
    }

    .hero-note {
      margin-top: 28px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      border-radius: 999px;
      padding: 7px 12px;
      font-size: 13px;
      font-weight: 800;
      color: var(--primary-dark);
      background: var(--surface-soft);
      border: 1px solid rgba(179, 38, 75, .14);
    }

    .hero .tag {
      color: #fff;
      background: rgba(255,255,255,.14);
      border-color: rgba(255,255,255,.22);
    }

    .section {
      padding: 92px 0;
    }

    .section-compact {
      padding: 72px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 34px;
    }

    .section-kicker {
      color: var(--primary);
      font-size: 14px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .section-title {
      font-size: clamp(28px, 4vw, 46px);
      line-height: 1.18;
      letter-spacing: 0;
    }

    .section-desc {
      max-width: 590px;
      color: var(--muted);
      font-size: 16px;
    }

    .grid {
      display: grid;
      gap: 22px;
    }

    .grid-4 {
      grid-template-columns: repeat(4, 1fr);
    }

    .grid-3 {
      grid-template-columns: repeat(3, 1fr);
    }

    .grid-2 {
      grid-template-columns: repeat(2, 1fr);
    }

    .card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 0 1px 0 rgba(255,255,255,.65) inset;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-soft);
      border-color: rgba(179, 38, 75, .22);
    }

    .feature-card {
      padding: 28px;
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: var(--accent-soft);
      color: var(--accent);
      font-weight: 900;
      margin-bottom: 22px;
    }

    .feature-card h3,
    .category-card h3,
    .update-card h3 {
      font-size: 20px;
      line-height: 1.35;
      margin-bottom: 10px;
    }

    .feature-card p,
    .category-card p,
    .update-card p {
      color: var(--muted);
      font-size: 15px;
    }

    .image-card {
      min-height: 100%;
    }

    .image-card img {
      aspect-ratio: 16 / 10;
      object-fit: cover;
    }

    .image-card-body {
      padding: 22px;
    }

    .category-card {
      position: relative;
      min-height: 300px;
      display: flex;
      align-items: flex-end;
      padding: 22px;
      color: #fff;
      background-size: cover;
      background-position: center;
      overflow: hidden;
    }

    .category-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(35,31,32,.08), rgba(35,31,32,.78));
    }

    .category-card > div {
      position: relative;
      z-index: 1;
    }

    .category-card .tag {
      margin-bottom: 12px;
      color: #fff;
      background: rgba(255,255,255,.16);
      border-color: rgba(255,255,255,.24);
    }

    .category-card p {
      color: rgba(255,255,255,.86);
    }

    .split {
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 42px;
      align-items: center;
    }

    .media-frame {
      position: relative;
      border-radius: 28px;
      overflow: hidden;
      box-shadow: var(--shadow);
      background: var(--surface);
    }

    .media-frame img {
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .media-caption {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      padding: 16px;
      border-radius: 16px;
      color: #fff;
      background: rgba(35,31,32,.72);
      backdrop-filter: blur(12px);
      font-weight: 800;
    }

    .check-list {
      display: grid;
      gap: 14px;
      margin-top: 24px;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 12px;
      color: var(--muted);
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 24px;
      width: 24px;
      height: 24px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--accent-soft);
      color: var(--accent);
      font-weight: 900;
      line-height: 1;
      margin-top: 2px;
    }

    .stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: -48px;
      position: relative;
      z-index: 3;
    }

    .stat {
      padding: 22px;
      border-radius: var(--radius);
      background: var(--surface);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-soft);
    }

    .stat strong {
      display: block;
      font-size: 30px;
      line-height: 1;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .stat span {
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .updates {
      background: #201b1d;
      color: #fff;
    }

    .updates .section-kicker {
      color: #5eead4;
    }

    .updates .section-desc {
      color: rgba(255,255,255,.68);
    }

    .update-list {
      display: grid;
      gap: 14px;
    }

    .update-card {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 20px;
      align-items: center;
      padding: 22px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.12);
      border-radius: var(--radius);
      transition: background var(--ease), transform var(--ease), border-color var(--ease);
    }

    .update-card:hover {
      background: rgba(255,255,255,.1);
      transform: translateY(-2px);
      border-color: rgba(94, 234, 212, .36);
    }

    .update-card p {
      color: rgba(255,255,255,.68);
      margin-top: 6px;
    }

    .update-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 12px;
    }

    .update-meta span {
      padding: 5px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.1);
      color: rgba(255,255,255,.82);
      font-size: 12px;
      font-weight: 800;
    }

    .empty-state {
      padding: 26px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.08);
      border: 1px dashed rgba(255,255,255,.22);
      color: rgba(255,255,255,.78);
      font-weight: 700;
    }

    .process {
      counter-reset: step;
    }

    .process-card {
      padding: 26px;
      position: relative;
    }

    .process-card::before {
      counter-increment: step;
      content: counter(step, decimal-leading-zero);
      display: inline-flex;
      color: var(--gold);
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .quote-band {
      background: var(--surface-soft);
      border-top: 1px solid rgba(179, 38, 75, .12);
      border-bottom: 1px solid rgba(179, 38, 75, .12);
    }

    .quote-box {
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
    }

    .quote-box p {
      font-size: clamp(22px, 3vw, 34px);
      line-height: 1.45;
      font-weight: 850;
      color: var(--text);
    }

    .quote-box span {
      display: block;
      margin-top: 18px;
      color: var(--muted);
      font-weight: 700;
    }

    .faq {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px 24px;
    }

    .faq-item summary {
      cursor: pointer;
      font-weight: 900;
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

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

    .faq-item summary::after {
      content: "+";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--surface-soft);
      color: var(--primary);
      flex: 0 0 auto;
      transition: transform var(--ease);
    }

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

    .faq-item p {
      margin-top: 14px;
      color: var(--muted);
    }

    .cta {
      padding: 54px;
      border-radius: 30px;
      background: linear-gradient(135deg, #b3264b, #0f766e);
      color: #fff;
      overflow: hidden;
      position: relative;
    }

    .cta::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
      opacity: .16;
      mix-blend-mode: screen;
    }

    .cta-content {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
    }

    .cta h2 {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      margin-bottom: 12px;
    }

    .cta p {
      color: rgba(255,255,255,.84);
      max-width: 720px;
    }

    .site-footer {
      padding: 56px 0 26px;
      background: #171315;
      color: rgba(255,255,255,.76);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 42px;
      padding-bottom: 34px;
      border-bottom: 1px solid rgba(255,255,255,.1);
    }

    .footer-brand {
      color: #fff;
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .footer-links {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .footer-links a {
      color: rgba(255,255,255,.72);
      font-weight: 700;
      transition: color var(--ease), transform var(--ease);
    }

    .footer-links a:hover {
      color: #fff;
      transform: translateX(2px);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      padding-top: 24px;
      font-size: 13px;
      color: rgba(255,255,255,.56);
    }

    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }

      .split,
      .cta-content,
      .footer-top {
        grid-template-columns: 1fr;
      }

      .stats {
        grid-template-columns: repeat(2, 1fr);
      }

      .cta {
        padding: 40px;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .nav-toggle {
        display: inline-block;
      }

      .main-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: calc(var(--header-h) + 8px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 18px;
        background: var(--surface);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-soft);
      }

      .main-nav.open {
        display: flex;
      }

      .main-nav a {
        border-radius: 12px;
        padding: 12px 14px;
      }

      .hero {
        min-height: 720px;
        background-position: 58% center;
      }

      .hero-inner {
        padding: 58px 0 110px;
      }

      .hero p {
        font-size: 16px;
      }

      .section {
        padding: 68px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 12px;
      }

      .grid-3,
      .grid-2 {
        grid-template-columns: 1fr;
      }

      .update-card {
        grid-template-columns: 1fr;
      }

      .footer-links {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 520px) {
      .brand-text {
        font-size: 16px;
      }

      h1 {
        font-size: 40px;
      }

      .hero-actions,
      .hero-actions .btn,
      .cta .btn {
        width: 100%;
      }

      .stats,
      .grid-4 {
        grid-template-columns: 1fr;
      }

      .stat,
      .feature-card,
      .process-card,
      .faq-item {
        padding: 20px;
      }

      .category-card {
        min-height: 250px;
      }

      .cta {
        padding: 30px 22px;
        border-radius: 22px;
      }
    }

/* roulang page: category1 */
:root {
      --color-bg: #f6f3ee;
      --color-surface: #fffdf9;
      --color-surface-strong: #ffffff;
      --color-text: #241f1b;
      --color-muted: #706a63;
      --color-soft: #a49a90;
      --color-primary: #b54b3e;
      --color-primary-dark: #8f332b;
      --color-secondary: #1f7a72;
      --color-accent: #e6b65a;
      --color-border: rgba(36, 31, 27, 0.12);
      --shadow-sm: 0 10px 24px rgba(69, 48, 37, 0.08);
      --shadow-md: 0 18px 44px rgba(69, 48, 37, 0.14);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --container: 1160px;
      --header-h: 76px;
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    }

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

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

    body {
      font-family: var(--font-main);
      color: var(--color-text);
      background: var(--color-bg);
      line-height: 1.75;
      overflow-x: hidden;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    ::selection {
      background: rgba(181, 75, 62, 0.22);
    }

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      background: rgba(255, 253, 249, 0.88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--color-border);
    }

    .nav-wrap {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      font-weight: 800;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      box-shadow: 0 10px 22px rgba(181, 75, 62, 0.25);
    }

    .brand-text {
      font-size: 18px;
      letter-spacing: 0;
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
      flex: 1;
    }

    .main-nav a {
      padding: 10px 14px;
      border-radius: 999px;
      color: var(--color-muted);
      font-size: 15px;
      font-weight: 650;
      transition: color .2s ease, background .2s ease, transform .2s ease;
    }

    .main-nav a:hover,
    .main-nav a:focus-visible {
      color: var(--color-primary-dark);
      background: rgba(181, 75, 62, 0.08);
      outline: none;
    }

    .main-nav a.active {
      color: #fff;
      background: var(--color-primary);
      box-shadow: 0 10px 24px rgba(181, 75, 62, 0.2);
    }

    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: var(--color-surface-strong);
      border: 1px solid var(--color-border);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      transition: box-shadow .2s ease, transform .2s ease;
    }

    .nav-toggle span {
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--color-text);
      transition: transform .2s ease, opacity .2s ease;
    }

    .nav-toggle:hover,
    .nav-toggle:focus-visible {
      box-shadow: var(--shadow-sm);
      outline: 3px solid rgba(31, 122, 114, 0.18);
      outline-offset: 2px;
    }

    .page-hero {
      position: relative;
      min-height: 520px;
      display: flex;
      align-items: center;
      overflow: hidden;
      color: #fff;
      background:
        linear-gradient(90deg, rgba(26, 22, 19, 0.88), rgba(26, 22, 19, 0.58) 54%, rgba(26, 22, 19, 0.26)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }

    .page-hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 110px;
      background: linear-gradient(180deg, transparent, var(--color-bg));
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      width: min(880px, 100%);
      padding: 92px 0 124px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.14);
      border: 1px solid rgba(255, 255, 255, 0.22);
      color: rgba(255, 255, 255, 0.92);
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-accent);
    }

    h1 {
      max-width: 820px;
      font-size: clamp(34px, 5vw, 64px);
      line-height: 1.12;
      letter-spacing: 0;
      margin-bottom: 22px;
    }

    .hero-lead {
      max-width: 760px;
      color: rgba(255, 255, 255, 0.88);
      font-size: 19px;
      line-height: 1.9;
      margin-bottom: 30px;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      border: 1px solid transparent;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn:focus-visible {
      outline: 3px solid rgba(230, 182, 90, 0.42);
      outline-offset: 3px;
    }

    .btn-primary {
      background: var(--color-accent);
      color: #2a2116;
      box-shadow: 0 14px 30px rgba(230, 182, 90, 0.25);
    }

    .btn-primary:hover {
      background: #f0c879;
    }

    .btn-ghost {
      color: #fff;
      border-color: rgba(255, 255, 255, 0.36);
      background: rgba(255, 255, 255, 0.08);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.16);
    }

    main {
      position: relative;
      z-index: 2;
    }

    .section {
      padding: 82px 0;
    }

    .section.compact {
      padding: 58px 0;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-title {
      font-size: clamp(26px, 3vw, 42px);
      line-height: 1.2;
      letter-spacing: 0;
      margin-bottom: 12px;
    }

    .section-desc {
      color: var(--color-muted);
      max-width: 710px;
      font-size: 16px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(31, 122, 114, 0.1);
      color: var(--color-secondary);
      font-size: 14px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .grid {
      display: grid;
      gap: 22px;
    }

    .grid-3 {
      grid-template-columns: repeat(3, 1fr);
    }

    .grid-2 {
      grid-template-columns: repeat(2, 1fr);
    }

    .card {
      border-radius: var(--radius-md);
      background: var(--color-surface-strong);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(181, 75, 62, 0.24);
    }

    .card-body {
      padding: 24px;
    }

    .card h3 {
      font-size: 21px;
      line-height: 1.35;
      margin-bottom: 10px;
    }

    .card p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .media-card img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
    }

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

    .check-list li {
      position: relative;
      padding: 16px 18px 16px 48px;
      border-radius: var(--radius-sm);
      background: rgba(255, 253, 249, 0.76);
      border: 1px solid var(--color-border);
      color: var(--color-muted);
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 17px;
      top: 16px;
      width: 22px;
      height: 22px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(31, 122, 114, 0.13);
      color: var(--color-secondary);
      font-size: 13px;
      font-weight: 900;
    }

    .feature-band {
      background: var(--color-surface);
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
    }

    .split {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 44px;
      align-items: center;
    }

    .visual-panel {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      min-height: 420px;
      box-shadow: var(--shadow-md);
      background: #2a211d;
    }

    .visual-panel img {
      width: 100%;
      height: 100%;
      min-height: 420px;
      object-fit: cover;
    }

    .visual-panel .caption {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 22px;
      padding: 18px;
      border-radius: var(--radius-md);
      background: rgba(255, 253, 249, 0.92);
      backdrop-filter: blur(14px);
      color: var(--color-text);
      border: 1px solid rgba(255, 255, 255, 0.5);
    }

    .caption strong {
      display: block;
      font-size: 19px;
      margin-bottom: 5px;
    }

    .caption span {
      color: var(--color-muted);
      font-size: 14px;
    }

    .steps {
      counter-reset: step;
      display: grid;
      gap: 18px;
    }

    .step {
      counter-increment: step;
      display: grid;
      grid-template-columns: 54px 1fr;
      gap: 16px;
      align-items: start;
      padding: 22px;
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .step::before {
      content: counter(step);
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #fff;
      background: var(--color-primary);
      font-weight: 900;
      font-size: 20px;
    }

    .step h3 {
      font-size: 20px;
      margin-bottom: 6px;
    }

    .step p {
      color: var(--color-muted);
    }

    .notice {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: #2b2520;
      color: #fff;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      box-shadow: var(--shadow-md);
    }

    .notice p {
      color: rgba(255, 255, 255, 0.78);
      margin-top: 6px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 6px 12px;
      border-radius: 999px;
      background: rgba(181, 75, 62, 0.09);
      color: var(--color-primary-dark);
      border: 1px solid rgba(181, 75, 62, 0.12);
      font-size: 14px;
      font-weight: 700;
    }

    .faq-list {
      display: grid;
      gap: 16px;
    }

    .faq-item {
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: 20px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      background: transparent;
      color: var(--color-text);
      text-align: left;
      font-weight: 850;
    }

    .faq-question::after {
      content: "+";
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(31, 122, 114, 0.1);
      color: var(--color-secondary);
      transition: transform .2s ease, background .2s ease;
    }

    .faq-question:hover,
    .faq-question:focus-visible {
      color: var(--color-primary-dark);
      outline: none;
    }

    .faq-answer {
      display: none;
      padding: 0 22px 22px;
      color: var(--color-muted);
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .faq-item.open .faq-question::after {
      content: "−";
      transform: rotate(180deg);
      background: rgba(181, 75, 62, 0.12);
      color: var(--color-primary-dark);
    }

    .cta {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-lg);
      padding: 44px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(143, 51, 43, 0.94), rgba(31, 122, 114, 0.9)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      box-shadow: var(--shadow-md);
    }

    .cta h2 {
      font-size: clamp(26px, 3vw, 42px);
      line-height: 1.22;
      margin-bottom: 14px;
      max-width: 760px;
    }

    .cta p {
      color: rgba(255, 255, 255, 0.84);
      max-width: 780px;
      margin-bottom: 24px;
    }

    .site-footer {
      background: #221d19;
      color: #fff;
      padding: 52px 0 26px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 36px;
      padding-bottom: 30px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .footer-brand {
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 10px;
    }

    .site-footer p {
      max-width: 560px;
      color: rgba(255, 255, 255, 0.7);
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
      max-width: 520px;
    }

    .footer-links a {
      padding: 8px 12px;
      border-radius: 999px;
      color: rgba(255, 255, 255, 0.75);
      background: rgba(255, 255, 255, 0.06);
      font-size: 14px;
      transition: background .2s ease, color .2s ease;
    }

    .footer-links a:hover,
    .footer-links a:focus-visible {
      color: #fff;
      background: rgba(255, 255, 255, 0.14);
      outline: none;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding-top: 22px;
      color: rgba(255, 255, 255, 0.56);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .main-nav a {
        padding: 9px 10px;
        font-size: 14px;
      }

      .split {
        grid-template-columns: 1fr;
      }

      .visual-panel,
      .visual-panel img {
        min-height: 360px;
      }

      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-h: 68px;
      }

      .container {
        width: min(100% - 28px, var(--container));
      }

      .nav-toggle {
        display: flex;
      }

      .main-nav {
        position: fixed;
        left: 14px;
        right: 14px;
        top: calc(var(--header-h) + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: var(--radius-md);
        background: rgba(255, 253, 249, 0.98);
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
      }

      .main-nav.open {
        display: flex;
      }

      .main-nav a {
        text-align: center;
        padding: 12px 14px;
      }

      .nav-toggle.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
      }

      .nav-toggle.open span:nth-child(2) {
        opacity: 0;
      }

      .nav-toggle.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
      }

      .page-hero {
        min-height: 560px;
      }

      .hero-inner {
        padding: 72px 0 112px;
      }

      .hero-lead {
        font-size: 17px;
      }

      .section {
        padding: 62px 0;
      }

      .section-head {
        display: block;
      }

      .grid-3,
      .grid-2 {
        grid-template-columns: 1fr;
      }

      .notice {
        grid-template-columns: 1fr;
      }

      .footer-top,
      .footer-bottom {
        grid-template-columns: 1fr;
        display: grid;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 520px) {
      .brand-text {
        font-size: 16px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        border-radius: 10px;
      }

      .hero-actions,
      .cta .hero-actions {
        align-items: stretch;
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .card-body,
      .step,
      .notice,
      .cta {
        padding: 20px;
      }

      .step {
        grid-template-columns: 44px 1fr;
      }

      .step::before {
        width: 44px;
        height: 44px;
        border-radius: 13px;
      }

      .visual-panel,
      .visual-panel img {
        min-height: 300px;
      }

      .visual-panel .caption {
        left: 14px;
        right: 14px;
        bottom: 14px;
      }

      .footer-bottom {
        font-size: 12px;
      }
    }

/* roulang page: article */
:root {
      --bg: #f7f3ee;
      --surface: #fffaf4;
      --surface-strong: #ffffff;
      --text: #241f1b;
      --muted: #71685f;
      --soft: #ede3d8;
      --line: rgba(36, 31, 27, .12);
      --primary: #b6403b;
      --primary-dark: #8e2e2b;
      --accent: #2f766d;
      --accent-soft: #dcefe9;
      --gold: #c79b42;
      --shadow: 0 18px 50px rgba(58, 45, 33, .12);
      --shadow-soft: 0 10px 28px rgba(58, 45, 33, .08);
      --radius-lg: 24px;
      --radius-md: 16px;
      --radius-sm: 10px;
      --container: 1160px;
      --header-h: 76px;
      --ease: 180ms ease;
    }

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

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

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 18% 4%, rgba(199, 155, 66, .15), transparent 30%),
        linear-gradient(180deg, #fff8ef 0%, var(--bg) 46%, #f5efe8 100%);
      line-height: 1.72;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease);
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(47, 118, 109, .28);
      outline-offset: 4px;
      border-radius: 8px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      background: rgba(255, 250, 244, .88);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
    }

    .nav-wrap {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 800;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 12px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 10px 24px rgba(182, 64, 59, .25);
    }

    .brand-text {
      font-size: 18px;
      line-height: 1.15;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
      flex: 1;
    }

    .main-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 650;
      font-size: 15px;
    }

    .main-nav a:hover,
    .main-nav a:focus-visible {
      color: var(--primary-dark);
      background: rgba(182, 64, 59, .08);
    }

    .main-nav a.active {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 10px 20px rgba(182, 64, 59, .18);
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--surface-strong);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
    }

    .nav-toggle span {
      display: block;
      width: 19px;
      height: 2px;
      margin: 5px auto;
      background: var(--text);
      border-radius: 999px;
      transition: transform var(--ease), opacity var(--ease);
    }

    .article-hero {
      position: relative;
      min-height: 520px;
      display: flex;
      align-items: end;
      padding: 96px 0 64px;
      isolation: isolate;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(36, 31, 27, .88), rgba(36, 31, 27, .55) 52%, rgba(36, 31, 27, .2)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }

    .article-hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 120px;
      background: linear-gradient(180deg, transparent, rgba(247, 243, 238, .92));
      z-index: -1;
    }

    .hero-inner {
      width: min(100% - 40px, 980px);
      margin: 0 auto;
      color: #fff;
    }

    .crumbs {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 22px;
      color: rgba(255, 255, 255, .78);
      font-size: 14px;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 18px;
      padding: 8px 12px;
      border: 1px solid rgba(255, 255, 255, .25);
      border-radius: 999px;
      background: rgba(255, 255, 255, .12);
      backdrop-filter: blur(12px);
      color: rgba(255, 255, 255, .92);
      font-size: 14px;
      font-weight: 700;
    }

    .article-hero h1 {
      max-width: 900px;
      font-size: clamp(34px, 6vw, 68px);
      line-height: 1.08;
      letter-spacing: 0;
      font-weight: 900;
      text-wrap: balance;
    }

    .hero-summary {
      max-width: 820px;
      margin-top: 22px;
      color: rgba(255, 255, 255, .86);
      font-size: 18px;
      line-height: 1.9;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .meta-pill {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      padding: 0 12px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .9);
      background: rgba(255, 255, 255, .13);
      border: 1px solid rgba(255, 255, 255, .2);
      font-size: 14px;
      font-weight: 650;
    }

    main {
      position: relative;
      z-index: 1;
    }

    .section {
      padding: 74px 0;
    }

    .section-tight {
      padding: 48px 0;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 34px;
      align-items: start;
    }

    .article-shell,
    .side-card,
    .feature-card,
    .faq-item,
    .notice-panel,
    .cta-panel {
      background: rgba(255, 250, 244, .88);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
    }

    .article-shell {
      padding: clamp(24px, 4vw, 44px);
    }

    .article-cover {
      overflow: hidden;
      border-radius: 20px;
      margin-bottom: 34px;
      border: 1px solid var(--line);
      background: var(--soft);
    }

    .article-cover img {
      width: 100%;
      aspect-ratio: 16 / 8;
      object-fit: cover;
      transition: transform 400ms ease;
    }

    .article-cover:hover img {
      transform: scale(1.025);
    }

    .cms-content {
      color: #332c26;
      font-size: 17px;
    }

    .cms-content h2,
    .cms-content h3,
    .cms-content h4 {
      color: var(--text);
      line-height: 1.3;
      margin: 1.8em 0 .7em;
      letter-spacing: 0;
    }

    .cms-content h2 {
      font-size: 30px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--line);
    }

    .cms-content h3 {
      font-size: 23px;
    }

    .cms-content p {
      margin: 1em 0;
    }

    .cms-content a {
      color: var(--primary-dark);
      border-bottom: 1px solid rgba(182, 64, 59, .32);
      font-weight: 700;
    }

    .cms-content a:hover {
      color: var(--accent);
      border-color: rgba(47, 118, 109, .45);
    }

    .cms-content ul,
    .cms-content ol {
      margin: 1em 0 1em 1.4em;
      padding-left: .6em;
    }

    .cms-content li {
      margin: .45em 0;
    }

    .cms-content blockquote {
      margin: 28px 0;
      padding: 22px 24px;
      border-left: 5px solid var(--primary);
      border-radius: 0 16px 16px 0;
      background: rgba(182, 64, 59, .07);
      color: #493c35;
    }

    .cms-content img {
      border-radius: 18px;
      margin: 28px auto;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
    }

    .empty-state {
      padding: 42px;
      text-align: center;
      border-radius: 20px;
      background: #fff;
      border: 1px dashed rgba(182, 64, 59, .36);
    }

    .empty-state h2 {
      margin-bottom: 12px;
      font-size: 28px;
    }

    .empty-state p {
      color: var(--muted);
      margin-bottom: 22px;
    }

    .sidebar {
      position: sticky;
      top: calc(var(--header-h) + 24px);
      display: grid;
      gap: 18px;
    }

    .side-card {
      padding: 22px;
    }

    .side-card h2,
    .side-card h3 {
      font-size: 19px;
      margin-bottom: 12px;
      line-height: 1.35;
    }

    .side-card p {
      color: var(--muted);
      font-size: 15px;
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-top: 14px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 11px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: #225b54;
      font-size: 13px;
      font-weight: 750;
    }

    .quick-links {
      display: grid;
      gap: 10px;
      margin-top: 14px;
    }

    .quick-links a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      min-height: 44px;
      padding: 0 14px;
      border-radius: 12px;
      color: var(--text);
      background: rgba(237, 227, 216, .55);
      font-weight: 700;
    }

    .quick-links a:hover {
      background: rgba(182, 64, 59, .1);
      color: var(--primary-dark);
      transform: translateX(3px);
    }

    .side-image {
      overflow: hidden;
      padding: 0;
    }

    .side-image img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .side-image .side-image-text {
      padding: 18px 20px 22px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 26px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      margin-bottom: 10px;
      color: var(--primary-dark);
      font-weight: 850;
      font-size: 14px;
    }

    .section-title {
      max-width: 760px;
      font-size: clamp(27px, 4vw, 42px);
      line-height: 1.18;
      letter-spacing: 0;
    }

    .section-desc {
      max-width: 610px;
      color: var(--muted);
      font-size: 16px;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .feature-card {
      overflow: hidden;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(182, 64, 59, .22);
    }

    .feature-card img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
    }

    .feature-body {
      padding: 22px;
    }

    .feature-body h3 {
      font-size: 20px;
      margin-bottom: 8px;
    }

    .feature-body p {
      color: var(--muted);
      font-size: 15px;
    }

    .notice-panel {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 26px;
      overflow: hidden;
      background: #fff;
    }

    .notice-media img {
      width: 100%;
      height: 100%;
      min-height: 360px;
      object-fit: cover;
    }

    .notice-content {
      padding: clamp(28px, 5vw, 52px);
      align-self: center;
    }

    .check-list {
      display: grid;
      gap: 12px;
      margin-top: 22px;
      list-style: none;
    }

    .check-list li {
      position: relative;
      padding-left: 34px;
      color: #3f352e;
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      width: 23px;
      height: 23px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #fff;
      background: var(--accent);
      font-size: 13px;
      font-weight: 900;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .faq-item {
      padding: 24px;
    }

    .faq-item h3 {
      font-size: 18px;
      margin-bottom: 10px;
    }

    .faq-item p {
      color: var(--muted);
      font-size: 15px;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: clamp(30px, 6vw, 58px);
      color: #fff;
      background:
        linear-gradient(110deg, rgba(142, 46, 43, .96), rgba(47, 118, 109, .92)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      border: 0;
    }

    .cta-panel h2 {
      max-width: 720px;
      font-size: clamp(28px, 5vw, 48px);
      line-height: 1.18;
      margin-bottom: 14px;
    }

    .cta-panel p {
      max-width: 760px;
      color: rgba(255, 255, 255, .84);
      font-size: 17px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 800;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 14px 28px rgba(182, 64, 59, .22);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
    }

    .btn-light {
      color: var(--text);
      background: #fff;
      box-shadow: 0 12px 24px rgba(0, 0, 0, .12);
    }

    .btn-light:hover {
      color: var(--primary-dark);
      background: #fff7ed;
    }

    .btn-ghost {
      color: #fff;
      border-color: rgba(255, 255, 255, .36);
      background: rgba(255, 255, 255, .1);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, .18);
    }

    .site-footer {
      padding: 54px 0 28px;
      color: rgba(255, 255, 255, .82);
      background: #211b18;
    }

    .footer-top {
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(260px, .9fr);
      gap: 38px;
      padding-bottom: 34px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .footer-brand {
      margin-bottom: 12px;
      color: #fff;
      font-size: 24px;
      font-weight: 900;
    }

    .footer-top p {
      max-width: 610px;
      color: rgba(255, 255, 255, .7);
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
      align-content: start;
    }

    .footer-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: rgba(255, 255, 255, .78);
      background: rgba(255, 255, 255, .06);
      font-weight: 650;
      font-size: 14px;
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255, 255, 255, .13);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      padding-top: 22px;
      color: rgba(255, 255, 255, .58);
      font-size: 14px;
    }

    @media (max-width: 1024px) {
      .main-nav {
        gap: 2px;
      }

      .main-nav a {
        padding: 0 10px;
        font-size: 14px;
      }

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

      .sidebar {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .notice-panel {
        grid-template-columns: 1fr;
      }

      .notice-media img {
        min-height: 280px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-h: 68px;
      }

      .container,
      .hero-inner {
        width: min(100% - 28px, var(--container));
      }

      .site-header {
        height: var(--header-h);
      }

      .brand-text {
        max-width: 190px;
      }

      .nav-toggle {
        display: inline-block;
      }

      .main-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: calc(var(--header-h) + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        background: rgba(255, 250, 244, .98);
        border: 1px solid var(--line);
        border-radius: 18px;
        box-shadow: var(--shadow);
      }

      .main-nav.open {
        display: flex;
      }

      .main-nav a {
        justify-content: center;
        min-height: 46px;
      }

      .nav-toggle.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
      }

      .nav-toggle.open span:nth-child(2) {
        opacity: 0;
      }

      .nav-toggle.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
      }

      .article-hero {
        min-height: 500px;
        padding: 76px 0 46px;
      }

      .hero-summary {
        font-size: 16px;
      }

      .section {
        padding: 54px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 10px;
      }

      .article-shell {
        border-radius: 20px;
      }

      .article-cover img {
        aspect-ratio: 4 / 3;
      }

      .sidebar,
      .feature-grid,
      .faq-grid {
        grid-template-columns: 1fr;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 520px) {
      .brand-mark {
        width: 36px;
        height: 36px;
      }

      .brand-text {
        max-width: 150px;
        font-size: 16px;
      }

      .article-hero h1 {
        font-size: 32px;
      }

      .article-meta {
        gap: 8px;
      }

      .meta-pill {
        width: 100%;
        justify-content: center;
      }

      .article-shell {
        padding: 20px;
      }

      .cms-content {
        font-size: 16px;
      }

      .cms-content h2 {
        font-size: 24px;
      }

      .empty-state {
        padding: 28px 18px;
      }

      .cta-actions,
      .btn {
        width: 100%;
      }

      .footer-bottom {
        display: grid;
      }
    }

/* roulang page: category3 */
:root {
      --color-primary: #7c3aed;
      --color-primary-dark: #5b21b6;
      --color-primary-soft: #f1ebff;
      --color-accent: #f97316;
      --color-accent-soft: #fff3e8;
      --color-bg: #f8f7fb;
      --color-surface: #ffffff;
      --color-surface-2: #fbfaff;
      --color-text: #16131f;
      --color-muted: #6f6a7d;
      --color-light: #9690a4;
      --color-border: #e7e2f1;
      --color-danger: #dc2626;
      --shadow-sm: 0 10px 26px rgba(45, 29, 86, .08);
      --shadow-md: 0 18px 48px rgba(45, 29, 86, .12);
      --shadow-lg: 0 28px 70px rgba(45, 29, 86, .18);
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-pill: 999px;
      --container: 1160px;
      --header-height: 76px;
      --transition: .22s ease;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.7;
      color: var(--color-text);
      background:
        radial-gradient(circle at top left, rgba(124, 58, 237, .13), transparent 32%),
        linear-gradient(180deg, #ffffff 0%, var(--color-bg) 48%, #ffffff 100%);
      min-height: 100vh;
    }

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

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: transparent;
    }

    :focus-visible {
      outline: 3px solid rgba(124, 58, 237, .35);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      height: var(--header-height);
      background: rgba(255, 255, 255, .86);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(231, 226, 241, .78);
    }

    .nav-wrap {
      height: var(--header-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex: 0 0 auto;
      min-width: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 900;
      letter-spacing: .02em;
      background:
        linear-gradient(135deg, rgba(255,255,255,.24), transparent),
        linear-gradient(135deg, var(--color-primary), var(--color-accent));
      box-shadow: 0 12px 28px rgba(124, 58, 237, .26);
    }

    .brand-text {
      font-weight: 900;
      font-size: 18px;
      letter-spacing: -.02em;
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
      padding: 7px;
      background: rgba(248, 247, 251, .82);
      border: 1px solid rgba(231, 226, 241, .85);
      border-radius: var(--radius-pill);
    }

    .main-nav a {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 0 15px;
      border-radius: var(--radius-pill);
      color: var(--color-muted);
      font-size: 14px;
      font-weight: 700;
      transition: color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    .main-nav a:hover {
      color: var(--color-primary-dark);
      background: #fff;
      box-shadow: var(--shadow-sm);
      transform: translateY(-1px);
    }

    .main-nav a.active {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      box-shadow: 0 10px 22px rgba(124, 58, 237, .24);
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      transition: background var(--transition), border-color var(--transition), transform var(--transition);
    }

    .nav-toggle span {
      width: 19px;
      height: 2px;
      border-radius: 2px;
      background: var(--color-text);
      transition: transform var(--transition), opacity var(--transition);
    }

    .nav-toggle:hover {
      background: var(--color-primary-soft);
      border-color: rgba(124, 58, 237, .25);
    }

    .nav-toggle.is-open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.is-open span:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle.is-open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 84px 0;
    }

    .section-tight {
      padding: 64px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: var(--radius-pill);
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-accent);
      box-shadow: 0 0 0 5px rgba(249, 115, 22, .13);
    }

    .hero {
      position: relative;
      min-height: 620px;
      display: flex;
      align-items: center;
      padding: 96px 0 82px;
      background:
        linear-gradient(90deg, rgba(22, 19, 31, .78), rgba(22, 19, 31, .38), rgba(22, 19, 31, .72)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      color: #fff;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 160px;
      background: linear-gradient(180deg, transparent, var(--color-bg));
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, .72fr);
      gap: 46px;
      align-items: center;
    }

    .hero-content {
      max-width: 760px;
    }

    .hero h1 {
      font-size: clamp(38px, 6vw, 70px);
      line-height: 1.08;
      letter-spacing: -.055em;
      margin-bottom: 22px;
    }

    .hero-subtitle {
      max-width: 720px;
      font-size: 18px;
      color: rgba(255, 255, 255, .86);
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 28px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 0 20px;
      border-radius: var(--radius-pill);
      font-weight: 850;
      border: 1px solid transparent;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
    }

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

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-accent), #fb7185);
      box-shadow: 0 16px 34px rgba(249, 115, 22, .24);
    }

    .btn-secondary {
      color: #fff;
      border-color: rgba(255, 255, 255, .36);
      background: rgba(255, 255, 255, .12);
      backdrop-filter: blur(12px);
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, .2);
    }

    .btn-dark {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    }

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

    .hero-note {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: var(--radius-pill);
      font-size: 13px;
      font-weight: 750;
      color: rgba(255, 255, 255, .9);
      background: rgba(255, 255, 255, .13);
      border: 1px solid rgba(255, 255, 255, .18);
    }

    .hero-panel {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .13);
      border: 1px solid rgba(255, 255, 255, .22);
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow-lg);
    }

    .quality-meter {
      display: grid;
      gap: 16px;
    }

    .meter-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, .18);
    }

    .meter-head strong {
      font-size: 20px;
    }

    .score-badge {
      display: grid;
      place-items: center;
      width: 74px;
      height: 74px;
      border-radius: 24px;
      background: rgba(255, 255, 255, .92);
      color: var(--color-primary-dark);
      font-size: 24px;
      font-weight: 950;
      box-shadow: 0 16px 30px rgba(0, 0, 0, .18);
    }

    .meter-row {
      display: grid;
      gap: 7px;
    }

    .meter-row span {
      display: flex;
      justify-content: space-between;
      color: rgba(255, 255, 255, .88);
      font-size: 14px;
      font-weight: 750;
    }

    .bar {
      height: 10px;
      border-radius: 99px;
      background: rgba(255, 255, 255, .16);
      overflow: hidden;
    }

    .bar i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, #22c55e, #facc15, var(--color-accent));
    }

    .notice-line {
      margin-top: 16px;
      padding: 14px;
      border-radius: 16px;
      background: rgba(255, 255, 255, .11);
      color: rgba(255, 255, 255, .84);
      font-size: 14px;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-title {
      max-width: 730px;
    }

    .section-title h2 {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      letter-spacing: -.04em;
      margin-bottom: 12px;
    }

    .section-title p {
      color: var(--color-muted);
      font-size: 16px;
      max-width: 720px;
    }

    .section-aside {
      color: var(--color-light);
      font-weight: 800;
      white-space: nowrap;
    }

    .grid {
      display: grid;
      gap: 22px;
    }

    .grid-3 {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .grid-4 {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .card {
      position: relative;
      padding: 24px;
      border-radius: var(--radius-md);
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(124, 58, 237, .28);
    }

    .icon {
      width: 48px;
      height: 48px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      margin-bottom: 18px;
      color: #fff;
      font-weight: 950;
      background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
      box-shadow: 0 14px 28px rgba(124, 58, 237, .18);
    }

    .card h3 {
      font-size: 20px;
      margin-bottom: 10px;
      letter-spacing: -.02em;
    }

    .card p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .image-feature {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
      gap: 34px;
      align-items: center;
      padding: 28px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #ffffff, #faf7ff);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-md);
    }

    .feature-image {
      position: relative;
      overflow: hidden;
      border-radius: 24px;
      min-height: 380px;
      background: var(--color-primary-soft);
    }

    .feature-image img {
      width: 100%;
      height: 100%;
      min-height: 380px;
      object-fit: cover;
      transition: transform .5s ease;
    }

    .image-feature:hover .feature-image img {
      transform: scale(1.04);
    }

    .feature-image::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 46%, rgba(22, 19, 31, .66));
    }

    .image-caption {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      z-index: 1;
      color: #fff;
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .14);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, .18);
      font-weight: 800;
    }

    .feature-copy {
      padding: 12px 8px;
    }

    .feature-copy h2 {
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.18;
      letter-spacing: -.04em;
      margin-bottom: 16px;
    }

    .feature-copy p {
      color: var(--color-muted);
      margin-bottom: 18px;
    }

    .check-list {
      display: grid;
      gap: 12px;
      margin-top: 22px;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 14px 15px;
      border-radius: 16px;
      background: var(--color-surface-2);
      border: 1px solid var(--color-border);
      color: var(--color-muted);
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 auto;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #fff;
      background: var(--color-primary);
      font-size: 13px;
      font-weight: 900;
      margin-top: 1px;
    }

    .scenario-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
    }

    .scenario-card {
      overflow: hidden;
      border-radius: var(--radius-lg);
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .scenario-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

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

    .scenario-body {
      padding: 24px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-bottom: 15px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border-radius: var(--radius-pill);
      background: var(--color-accent-soft);
      color: #9a3412;
      font-size: 12px;
      font-weight: 850;
    }

    .scenario-body h3 {
      font-size: 21px;
      margin-bottom: 9px;
    }

    .scenario-body p {
      color: var(--color-muted);
      font-size: 15px;
    }

    .process {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
    }

    .step {
      padding: 24px;
      border-radius: var(--radius-md);
      background: #fff;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      margin-bottom: 16px;
      color: #fff;
      background: var(--color-text);
      font-weight: 950;
    }

    .step h3 {
      font-size: 18px;
      margin-bottom: 9px;
    }

    .step p {
      color: var(--color-muted);
      font-size: 14px;
    }

    .alert-panel {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 26px;
      align-items: stretch;
      padding: 30px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(220, 38, 38, .08), rgba(124, 58, 237, .08)),
        #fff;
      border: 1px solid rgba(220, 38, 38, .16);
      box-shadow: var(--shadow-md);
    }

    .alert-title {
      padding: 24px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid rgba(220, 38, 38, .16);
    }

    .alert-title strong {
      display: inline-flex;
      margin-bottom: 12px;
      color: var(--color-danger);
      font-size: 14px;
    }

    .alert-title h2 {
      font-size: 32px;
      line-height: 1.2;
      letter-spacing: -.04em;
    }

    .risk-list {
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .risk-list li {
      display: flex;
      gap: 12px;
      padding: 15px;
      border-radius: 16px;
      background: rgba(255, 255, 255, .75);
      border: 1px solid rgba(231, 226, 241, .88);
      color: var(--color-muted);
    }

    .risk-list li::before {
      content: "!";
      flex: 0 0 auto;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(220, 38, 38, .12);
      color: var(--color-danger);
      font-weight: 950;
    }

    .faq {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 34px;
      align-items: start;
    }

    .faq-list {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      border-radius: 18px;
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 19px 20px;
      color: var(--color-text);
      font-weight: 900;
      text-align: left;
      transition: background var(--transition), color var(--transition);
    }

    .faq-question:hover {
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
    }

    .faq-question span:last-child {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: var(--color-primary-soft);
      color: var(--color-primary-dark);
      flex: 0 0 auto;
      transition: transform var(--transition);
    }

    .faq-item.is-open .faq-question span:last-child {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .26s ease;
    }

    .faq-answer p {
      padding: 0 20px 20px;
      color: var(--color-muted);
      font-size: 15px;
    }

    .cta {
      padding: 46px;
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(124, 58, 237, .94), rgba(91, 33, 182, .94)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      color: #fff;
      box-shadow: var(--shadow-lg);
      overflow: hidden;
      position: relative;
    }

    .cta::before {
      content: "";
      position: absolute;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      right: -70px;
      top: -90px;
      background: rgba(255, 255, 255, .14);
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .cta h2 {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      letter-spacing: -.04em;
      margin-bottom: 12px;
    }

    .cta p {
      color: rgba(255, 255, 255, .84);
      max-width: 720px;
    }

    .site-footer {
      padding: 46px 0 30px;
      background: #120f1a;
      color: rgba(255, 255, 255, .78);
    }

    .footer-top {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 34px;
      align-items: start;
      padding-bottom: 28px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .footer-brand {
      color: #fff;
      font-size: 22px;
      font-weight: 950;
      margin-bottom: 10px;
      letter-spacing: -.02em;
    }

    .footer-top p {
      max-width: 560px;
      color: rgba(255, 255, 255, .66);
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
      max-width: 520px;
    }

    .footer-links a {
      padding: 8px 12px;
      border-radius: var(--radius-pill);
      color: rgba(255, 255, 255, .72);
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .08);
      font-size: 14px;
      font-weight: 750;
      transition: color var(--transition), background var(--transition), transform var(--transition);
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255, 255, 255, .13);
      transform: translateY(-2px);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding-top: 22px;
      color: rgba(255, 255, 255, .54);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .main-nav a {
        padding: 0 11px;
      }

      .hero-inner,
      .image-feature,
      .faq,
      .alert-panel {
        grid-template-columns: 1fr;
      }

      .hero {
        min-height: auto;
      }

      .hero-panel {
        max-width: 620px;
      }

      .grid-4,
      .process {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .feature-image,
      .feature-image img {
        min-height: 320px;
      }

      .cta-inner {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-height: 68px;
      }

      .container {
        width: min(100% - 28px, var(--container));
      }

      .site-header {
        height: var(--header-height);
      }

      .nav-wrap {
        height: var(--header-height);
      }

      .brand-text {
        font-size: 16px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .main-nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: calc(var(--header-height) + 10px);
        display: grid;
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 12px;
        border-radius: 22px;
        background: rgba(255, 255, 255, .96);
        box-shadow: var(--shadow-lg);
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
      }

      .main-nav.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
      }

      .main-nav a {
        justify-content: flex-start;
        min-height: 44px;
        padding: 0 14px;
      }

      .hero {
        padding: 74px 0 70px;
      }

      .hero-inner {
        gap: 28px;
      }

      .hero-subtitle {
        font-size: 16px;
      }

      .section,
      .section-tight {
        padding: 58px 0;
      }

      .section-head {
        display: block;
      }

      .section-aside {
        margin-top: 12px;
        white-space: normal;
      }

      .grid-3,
      .grid-4,
      .scenario-wrap,
      .process {
        grid-template-columns: 1fr;
      }

      .image-feature,
      .alert-panel {
        padding: 18px;
        border-radius: 24px;
      }

      .scenario-card img {
        height: 190px;
      }

      .cta {
        padding: 30px 22px;
        border-radius: 26px;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      .footer-links {
        justify-content: flex-start;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(100% - 22px, var(--container));
      }

      .hero h1 {
        font-size: 34px;
      }

      .hero-actions,
      .hero-note {
        width: 100%;
      }

      .btn {
        width: 100%;
      }

      .pill {
        width: 100%;
        justify-content: center;
      }

      .hero-panel {
        padding: 18px;
        border-radius: 22px;
      }

      .meter-head {
        align-items: flex-start;
      }

      .score-badge {
        width: 62px;
        height: 62px;
        border-radius: 20px;
        font-size: 20px;
      }

      .card,
      .step,
      .scenario-body {
        padding: 20px;
      }

      .feature-image,
      .feature-image img {
        min-height: 250px;
      }

      .faq-question {
        padding: 17px;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#0f1220;
      --bg-soft:#151a2e;
      --surface:#ffffff;
      --surface-2:#f6f8fc;
      --text:#1f2433;
      --muted:#657084;
      --muted-2:#9aa4b5;
      --primary:#7c3aed;
      --primary-dark:#5b21b6;
      --primary-soft:#ede9fe;
      --secondary:#06b6d4;
      --accent:#f59e0b;
      --danger:#ef4444;
      --success:#10b981;
      --border:#e5e9f2;
      --border-dark:rgba(255,255,255,.16);
      --shadow-sm:0 10px 28px rgba(22,28,45,.08);
      --shadow-md:0 18px 50px rgba(22,28,45,.14);
      --shadow-lg:0 24px 80px rgba(15,18,32,.28);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --container:1160px;
      --header-h:76px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.7;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 0%, rgba(124,58,237,.15), transparent 32%),
        radial-gradient(circle at 88% 8%, rgba(6,182,212,.12), transparent 28%),
        var(--surface-2);
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(124,58,237,.22)}
    :focus-visible{outline:3px solid rgba(6,182,212,.35);outline-offset:3px;border-radius:10px}

    .container{
      width:min(100% - 40px,var(--container));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      height:var(--header-h);
      background:rgba(255,255,255,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(229,233,242,.86);
      box-shadow:0 8px 30px rgba(22,28,45,.05);
    }
    .nav-wrap{
      height:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 32px rgba(124,58,237,.28);
    }
    .brand-text{
      font-size:18px;
      color:#161b2b;
    }
    .main-nav{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:6px;
      padding:6px;
      border:1px solid rgba(229,233,242,.8);
      background:rgba(246,248,252,.82);
      border-radius:999px;
    }
    .main-nav a{
      padding:10px 16px;
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      color:#495468;
      transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
      white-space:nowrap;
    }
    .main-nav a:hover{
      color:var(--primary-dark);
      background:#fff;
      box-shadow:0 8px 20px rgba(22,28,45,.08);
      transform:translateY(-1px);
    }
    .main-nav a.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 12px 26px rgba(124,58,237,.25);
    }
    .nav-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
    }
    .nav-toggle span{
      width:20px;
      height:2px;
      border-radius:999px;
      background:#202638;
      transition:transform .25s var(--ease),opacity .25s var(--ease);
    }
    .nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .nav-toggle.is-open span:nth-child(2){opacity:0}
    .nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    .hero{
      position:relative;
      isolation:isolate;
      padding:88px 0 64px;
      overflow:hidden;
      background:
        linear-gradient(110deg, rgba(15,18,32,.88), rgba(24,28,48,.76), rgba(91,33,182,.50)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      color:#fff;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:auto -10% -28% -10%;
      height:220px;
      background:linear-gradient(180deg,rgba(246,248,252,0),var(--surface-2) 78%);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      align-items:center;
      gap:48px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.22);
      color:#e8ecff;
      font-size:13px;
      font-weight:800;
      backdrop-filter:blur(12px);
      margin-bottom:20px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--success);
      box-shadow:0 0 0 6px rgba(16,185,129,.15);
    }
    h1{
      font-size:clamp(34px,5vw,62px);
      line-height:1.08;
      letter-spacing:-.05em;
      margin-bottom:22px;
      max-width:820px;
    }
    .hero p{
      font-size:18px;
      color:rgba(255,255,255,.82);
      max-width:720px;
      margin-bottom:30px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      font-weight:900;
      transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 18px 40px rgba(6,182,212,.22);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 52px rgba(124,58,237,.30)}
    .btn-ghost{
      color:#fff;
      border:1px solid rgba(255,255,255,.28);
      background:rgba(255,255,255,.10);
      backdrop-filter:blur(10px);
    }
    .btn-ghost:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
    .btn-light{
      color:var(--primary-dark);
      background:#fff;
      border:1px solid rgba(229,233,242,.92);
      box-shadow:var(--shadow-sm);
    }
    .btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
    .hero-panel{
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.10);
      border-radius:var(--radius-xl);
      padding:18px;
      box-shadow:var(--shadow-lg);
      backdrop-filter:blur(18px);
    }
    .hero-image{
      position:relative;
      overflow:hidden;
      border-radius:28px;
      min-height:390px;
      background:#111827;
    }
    .hero-image img{
      width:100%;
      height:390px;
      object-fit:cover;
      opacity:.86;
      transform:scale(1.02);
    }
    .privacy-card{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      padding:18px;
      border-radius:22px;
      background:rgba(15,18,32,.78);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(16px);
    }
    .privacy-card strong{
      display:block;
      font-size:18px;
      margin-bottom:8px;
    }
    .privacy-card span{
      color:rgba(255,255,255,.75);
      font-size:14px;
    }

    main{position:relative;z-index:2}
    .section{
      padding:76px 0;
    }
    .section.alt{
      background:#fff;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{
      color:var(--primary);
      font-weight:900;
      letter-spacing:.08em;
      font-size:13px;
      margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,3.6vw,44px);
      line-height:1.16;
      letter-spacing:-.035em;
      color:#171c2d;
    }
    .section-desc{
      max-width:560px;
      color:var(--muted);
      font-size:16px;
    }

    .notice-strip{
      margin-top:-34px;
      position:relative;
      z-index:5;
    }
    .notice-box{
      display:grid;
      grid-template-columns:auto 1fr auto;
      align-items:center;
      gap:18px;
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-md);
    }
    .notice-icon{
      width:52px;
      height:52px;
      display:grid;
      place-items:center;
      border-radius:18px;
      color:#fff;
      font-size:24px;
      background:linear-gradient(135deg,var(--accent),#fb7185);
    }
    .notice-box strong{display:block;font-size:18px;color:#171c2d}
    .notice-box p{color:var(--muted);font-size:14px}

    .grid-3{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
    }
    .grid-2{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:24px;
    }
    .card{
      position:relative;
      padding:26px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
      transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
    }
    .card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-md);
      border-color:rgba(124,58,237,.28);
    }
    .card-icon{
      width:52px;
      height:52px;
      display:grid;
      place-items:center;
      border-radius:18px;
      margin-bottom:18px;
      color:#fff;
      font-size:23px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 16px 30px rgba(124,58,237,.18);
    }
    .card h3{
      font-size:21px;
      line-height:1.3;
      margin-bottom:10px;
      color:#171c2d;
    }
    .card p{color:var(--muted);font-size:15px}
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-size:12px;
      font-weight:800;
    }

    .split{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:42px;
      align-items:center;
    }
    .image-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-lg);
      min-height:430px;
      background:#111827;
    }
    .image-card img{
      width:100%;
      height:430px;
      object-fit:cover;
      opacity:.92;
      transition:transform .5s var(--ease);
    }
    .image-card:hover img{transform:scale(1.04)}
    .image-badge{
      position:absolute;
      left:22px;
      bottom:22px;
      right:22px;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.9);
      backdrop-filter:blur(16px);
      border:1px solid rgba(255,255,255,.55);
      box-shadow:0 16px 46px rgba(15,18,32,.18);
    }
    .image-badge b{display:block;color:#171c2d;margin-bottom:4px}
    .image-badge span{color:var(--muted);font-size:14px}
    .check-list{
      display:grid;
      gap:14px;
      margin-top:22px;
    }
    .check-item{
      display:flex;
      gap:13px;
      align-items:flex-start;
      padding:16px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 8px 24px rgba(22,28,45,.05);
    }
    .check-item i{
      flex:0 0 24px;
      width:24px;
      height:24px;
      border-radius:999px;
      display:grid;
      place-items:center;
      font-style:normal;
      color:#fff;
      background:var(--success);
      font-size:14px;
      font-weight:900;
      margin-top:2px;
    }
    .check-item strong{display:block;color:#171c2d;margin-bottom:3px}
    .check-item span{color:var(--muted);font-size:14px}

    .steps{
      counter-reset:step;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .step{
      counter-increment:step;
      position:relative;
      padding:24px;
      border-radius:24px;
      background:linear-gradient(180deg,#fff,#fafbff);
      border:1px solid var(--border);
      box-shadow:var(--shadow-sm);
    }
    .step::before{
      content:"0" counter(step);
      display:inline-flex;
      width:42px;
      height:42px;
      border-radius:15px;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      margin-bottom:16px;
      box-shadow:0 12px 24px rgba(124,58,237,.2);
    }
    .step h3{font-size:18px;margin-bottom:8px;color:#171c2d}
    .step p{font-size:14px;color:var(--muted)}

    .scenario-card{
      min-height:100%;
      background:
        linear-gradient(135deg,rgba(124,58,237,.08),rgba(6,182,212,.06)),
        #fff;
    }
    .scenario-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:16px;
    }
    .pill{
      display:inline-flex;
      padding:7px 12px;
      border-radius:999px;
      font-size:12px;
      font-weight:900;
      color:#075985;
      background:#e0f2fe;
    }
    .level{
      color:var(--accent);
      font-weight:900;
      font-size:13px;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:34px;
      align-items:start;
    }
    .faq-intro{
      position:sticky;
      top:104px;
      padding:30px;
      border-radius:var(--radius-lg);
      color:#fff;
      background:
        linear-gradient(145deg,rgba(15,18,32,.92),rgba(91,33,182,.72)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow-lg);
    }
    .faq-intro h2{
      font-size:30px;
      line-height:1.2;
      margin-bottom:12px;
      letter-spacing:-.03em;
    }
    .faq-intro p{color:rgba(255,255,255,.78)}
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--border);
      background:#fff;
      border-radius:22px;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
    }
    .faq-question{
      width:100%;
      padding:20px 22px;
      background:#fff;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:#171c2d;
      font-weight:900;
      text-align:left;
    }
    .faq-question span:last-child{
      flex:0 0 30px;
      width:30px;
      height:30px;
      border-radius:999px;
      display:grid;
      place-items:center;
      background:var(--primary-soft);
      color:var(--primary-dark);
      transition:transform .25s var(--ease);
    }
    .faq-answer{
      display:none;
      padding:0 22px 22px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}

    .cta{
      padding:82px 0;
      background:
        linear-gradient(135deg,rgba(124,58,237,.92),rgba(6,182,212,.82)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      color:#fff;
    }
    .cta-box{
      display:grid;
      grid-template-columns:1fr auto;
      gap:30px;
      align-items:center;
    }
    .cta h2{
      font-size:clamp(30px,4vw,48px);
      line-height:1.15;
      letter-spacing:-.04em;
      margin-bottom:14px;
    }
    .cta p{
      max-width:720px;
      color:rgba(255,255,255,.82);
      font-size:17px;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }

    .site-footer{
      background:#0c1020;
      color:#d8def0;
      padding:54px 0 26px;
    }
    .footer-top{
      display:grid;
      grid-template-columns:1.1fr 1fr;
      gap:38px;
      padding-bottom:30px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      font-size:22px;
      font-weight:900;
      margin-bottom:12px;
      color:#fff;
      letter-spacing:-.02em;
    }
    .site-footer p{
      max-width:560px;
      color:rgba(216,222,240,.72);
      font-size:14px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:12px;
      align-content:flex-start;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      color:rgba(216,222,240,.78);
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      font-size:14px;
      transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
    }
    .footer-links a:hover{
      background:rgba(255,255,255,.12);
      color:#fff;
      transform:translateY(-2px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:24px;
      color:rgba(216,222,240,.62);
      font-size:13px;
    }

    @media (max-width:1024px){
      .main-nav a{padding:9px 12px;font-size:13px}
      .hero-grid,.split,.faq-wrap{grid-template-columns:1fr}
      .hero-panel{max-width:680px}
      .steps{grid-template-columns:repeat(2,1fr)}
      .cta-box{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .faq-intro{position:relative;top:auto}
    }
    @media (max-width:768px){
      :root{--header-h:70px}
      .container{width:min(100% - 28px,var(--container))}
      .nav-toggle{display:flex}
      .main-nav{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(var(--header-h) + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:24px;
        padding:12px;
        background:rgba(255,255,255,.96);
        box-shadow:var(--shadow-lg);
      }
      .main-nav.is-open{display:flex}
      .main-nav a{text-align:center}
      .hero{padding:64px 0 54px}
      .hero-actions,.cta-actions{align-items:stretch}
      .btn{width:100%}
      .notice-box{grid-template-columns:1fr}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .grid-3,.grid-2{grid-template-columns:1fr}
      .footer-top{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:520px){
      .brand-text{font-size:16px}
      .brand-mark{width:38px;height:38px}
      .hero p{font-size:16px}
      .hero-image,.hero-image img,.image-card,.image-card img{min-height:320px;height:320px}
      .privacy-card{position:relative;left:auto;right:auto;bottom:auto;margin:12px;background:rgba(15,18,32,.9)}
      .hero-panel{padding:10px;border-radius:24px}
      .steps{grid-template-columns:1fr}
      .card,.step{padding:22px}
      .faq-question{padding:18px}
      .footer-bottom{display:grid}
    }

/* roulang page: category4 */
:root{
      --bg:#0f1017;
      --bg-soft:#151724;
      --panel:#ffffff;
      --panel-soft:#f7f4ff;
      --text:#171724;
      --muted:#66677a;
      --light:#f8f7fb;
      --white:#ffffff;
      --primary:#9b5cff;
      --primary-dark:#7c3df0;
      --primary-soft:#eee6ff;
      --secondary:#ff6f91;
      --secondary-soft:#ffe7ee;
      --accent:#19c6b7;
      --warning:#ffb020;
      --danger:#ff4d5e;
      --border:rgba(23,23,36,.12);
      --border-dark:rgba(255,255,255,.12);
      --shadow:0 22px 60px rgba(24,20,52,.16);
      --shadow-soft:0 12px 36px rgba(24,20,52,.10);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 5%, rgba(155,92,255,.16), transparent 26%),
        radial-gradient(circle at 88% 12%, rgba(255,111,145,.12), transparent 28%),
        linear-gradient(180deg,#fbfaff 0%,#f4f1fb 48%,#ffffff 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{border:0;background:none;cursor:pointer}
    ::selection{background:var(--primary);color:#fff}

    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(23,23,36,.08);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 28px rgba(155,92,255,.28);
    }
    .brand-text{
      font-size:19px;
      font-weight:900;
      letter-spacing:.02em;
    }
    .main-nav{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:8px;
      flex:1;
    }
    .main-nav a{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:#424255;
      font-size:15px;
      font-weight:700;
      transition:var(--ease);
    }
    .main-nav a:hover{
      color:var(--primary-dark);
      background:var(--primary-soft);
    }
    .main-nav a.active{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 28px rgba(155,92,255,.24);
    }
    .nav-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:#fff;
      border:1px solid var(--border);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      transition:var(--ease);
    }
    .nav-toggle span{
      width:20px;
      height:2px;
      border-radius:2px;
      background:var(--text);
      transition:var(--ease);
    }
    .nav-toggle:hover,.nav-toggle:focus-visible{
      outline:none;
      border-color:rgba(155,92,255,.45);
      box-shadow:0 0 0 4px rgba(155,92,255,.12);
    }

    .page-hero{
      position:relative;
      min-height:560px;
      display:flex;
      align-items:center;
      overflow:hidden;
      color:#fff;
      background:
        linear-gradient(90deg, rgba(15,16,23,.94) 0%, rgba(15,16,23,.82) 48%, rgba(15,16,23,.58) 100%),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    }
    .page-hero::after{
      content:"";
      position:absolute;
      inset:auto -10% -36% -10%;
      height:260px;
      background:linear-gradient(180deg, transparent, rgba(244,241,251,1));
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:minmax(0, 1.08fr) minmax(320px, .72fr);
      gap:56px;
      align-items:center;
      padding:86px 0 112px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:max-content;
      padding:8px 13px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:999px;
      background:rgba(255,255,255,.10);
      color:#f1eaff;
      font-size:14px;
      font-weight:800;
      backdrop-filter:blur(12px);
      margin-bottom:20px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(25,198,183,.14);
    }
    h1{
      max-width:820px;
      font-size:clamp(36px, 5vw, 68px);
      line-height:1.08;
      letter-spacing:-.04em;
      font-weight:950;
      margin-bottom:22px;
    }
    .hero-lead{
      max-width:760px;
      color:rgba(255,255,255,.82);
      font-size:18px;
      line-height:1.9;
      margin-bottom:30px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:900;
      transition:var(--ease);
      border:1px solid transparent;
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 18px 36px rgba(155,92,255,.30);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 24px 42px rgba(155,92,255,.38);
    }
    .btn-ghost{
      color:#fff;
      background:rgba(255,255,255,.10);
      border-color:rgba(255,255,255,.18);
      backdrop-filter:blur(10px);
    }
    .btn-ghost:hover{
      background:rgba(255,255,255,.18);
      transform:translateY(-2px);
    }
    .btn-light{
      color:var(--primary-dark);
      background:#fff;
      border-color:rgba(155,92,255,.18);
      box-shadow:var(--shadow-soft);
    }
    .btn-light:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow);
    }
    .btn:focus-visible{
      outline:none;
      box-shadow:0 0 0 4px rgba(155,92,255,.24), 0 18px 36px rgba(155,92,255,.22);
    }

    .hero-panel{
      position:relative;
      border:1px solid rgba(255,255,255,.16);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.12);
      backdrop-filter:blur(18px);
      padding:24px;
      box-shadow:0 28px 80px rgba(0,0,0,.28);
    }
    .hero-panel img{
      width:100%;
      aspect-ratio:4/3;
      object-fit:cover;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.18);
    }
    .risk-card{
      margin-top:18px;
      display:grid;
      gap:12px;
    }
    .risk-row{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.12);
    }
    .risk-icon{
      width:34px;
      height:34px;
      flex:0 0 34px;
      border-radius:12px;
      display:grid;
      place-items:center;
      background:rgba(25,198,183,.16);
      color:#78fff1;
      font-weight:900;
    }
    .risk-row strong{
      display:block;
      color:#fff;
      line-height:1.35;
      margin-bottom:2px;
    }
    .risk-row span{
      color:rgba(255,255,255,.72);
      font-size:14px;
      line-height:1.55;
    }

    main{
      position:relative;
      z-index:3;
      margin-top:-54px;
    }
    .section{
      padding:72px 0;
    }
    .section.compact{padding:44px 0}
    .section-head{
      max-width:760px;
      margin-bottom:30px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:900;
      margin-bottom:14px;
    }
    .section-kicker::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
    }
    h2{
      font-size:clamp(28px, 3vw, 42px);
      line-height:1.2;
      letter-spacing:-.03em;
      margin-bottom:12px;
      font-weight:950;
    }
    .section-desc{
      color:var(--muted);
      font-size:17px;
      max-width:820px;
    }

    .notice-strip{
      display:grid;
      grid-template-columns:1fr auto;
      gap:22px;
      align-items:center;
      padding:24px;
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,#fff, #f4efff);
      border:1px solid rgba(155,92,255,.16);
      box-shadow:var(--shadow);
    }
    .notice-strip strong{
      display:block;
      font-size:20px;
      margin-bottom:4px;
    }
    .notice-strip p{
      color:var(--muted);
    }
    .age-badge{
      width:92px;
      height:92px;
      border-radius:28px;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:30px;
      font-weight:950;
      background:linear-gradient(135deg,var(--danger),var(--secondary));
      box-shadow:0 20px 42px rgba(255,77,94,.24);
    }

    .grid{
      display:grid;
      gap:22px;
    }
    .grid-3{grid-template-columns:repeat(3, minmax(0, 1fr))}
    .grid-2{grid-template-columns:repeat(2, minmax(0, 1fr))}

    .card{
      position:relative;
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.86);
      border:1px solid rgba(23,23,36,.10);
      box-shadow:var(--shadow-soft);
      padding:24px;
      overflow:hidden;
      transition:var(--ease);
    }
    .card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(155,92,255,.24);
    }
    .card-icon{
      width:48px;
      height:48px;
      border-radius:17px;
      display:grid;
      place-items:center;
      margin-bottom:18px;
      font-weight:950;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 28px rgba(155,92,255,.22);
    }
    .card h3{
      font-size:21px;
      line-height:1.32;
      margin-bottom:10px;
    }
    .card p{
      color:var(--muted);
    }
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      background:#fff;
      border:1px solid rgba(155,92,255,.16);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:800;
    }

    .split{
      display:grid;
      grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
      gap:34px;
      align-items:center;
    }
    .image-card{
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.8);
      background:#fff;
    }
    .image-card img{
      width:100%;
      min-height:420px;
      object-fit:cover;
    }
    .check-list{
      display:grid;
      gap:14px;
      margin-top:22px;
    }
    .check-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:15px;
      border-radius:18px;
      background:#fff;
      border:1px solid rgba(23,23,36,.08);
      box-shadow:0 10px 22px rgba(24,20,52,.06);
    }
    .check{
      width:26px;
      height:26px;
      flex:0 0 26px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#fff;
      background:var(--accent);
      font-size:14px;
      font-weight:900;
    }
    .check-item strong{
      display:block;
      margin-bottom:2px;
    }
    .check-item span{
      color:var(--muted);
      font-size:15px;
    }

    .steps{
      counter-reset:step;
      display:grid;
      gap:18px;
    }
    .step{
      counter-increment:step;
      display:grid;
      grid-template-columns:74px 1fr;
      gap:18px;
      padding:22px;
      border-radius:var(--radius-md);
      background:#fff;
      border:1px solid rgba(23,23,36,.09);
      box-shadow:var(--shadow-soft);
    }
    .step-num{
      width:58px;
      height:58px;
      border-radius:20px;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:20px;
      font-weight:950;
      background:linear-gradient(135deg,var(--primary),var(--accent));
    }
    .step-num::before{
      content:counter(step, decimal-leading-zero);
    }
    .step h3{
      font-size:20px;
      margin-bottom:6px;
    }
    .step p{
      color:var(--muted);
    }

    .scenario{
      min-height:260px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      color:#fff;
      padding:24px;
      border-radius:var(--radius-md);
      overflow:hidden;
      position:relative;
      background:#171724;
      box-shadow:var(--shadow-soft);
      isolation:isolate;
    }
    .scenario::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(15,16,23,.08), rgba(15,16,23,.82));
      z-index:-1;
    }
    .scenario.one{background:url('/assets/images/coverpic/cover-8.webp') center/cover no-repeat}
    .scenario.two{background:url('/assets/images/coverpic/cover-9.webp') center/cover no-repeat}
    .scenario.three{background:url('/assets/images/coverpic/cover-11.webp') center/cover no-repeat}
    .scenario h3{
      font-size:22px;
      margin-bottom:8px;
    }
    .scenario p{
      color:rgba(255,255,255,.78);
    }

    .faq{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border-radius:20px;
      background:#fff;
      border:1px solid rgba(23,23,36,.10);
      box-shadow:0 12px 26px rgba(24,20,52,.07);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:20px 22px;
      color:var(--text);
      font-weight:900;
      text-align:left;
    }
    .faq-q span:last-child{
      width:28px;
      height:28px;
      flex:0 0 28px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary-dark);
      transition:var(--ease);
    }
    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-a p{
      padding:0 22px 20px;
      color:var(--muted);
    }
    .faq-item.open .faq-a{max-height:220px}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg);background:var(--primary);color:#fff}

    .cta{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      color:#fff;
      padding:46px;
      background:
        linear-gradient(135deg, rgba(124,61,240,.95), rgba(255,111,145,.90)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow:0 28px 70px rgba(124,61,240,.24);
    }
    .cta::after{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-70px;
      top:-90px;
      border-radius:50%;
      background:rgba(255,255,255,.16);
    }
    .cta-content{
      position:relative;
      z-index:2;
      max-width:780px;
    }
    .cta h2{color:#fff}
    .cta p{
      color:rgba(255,255,255,.84);
      font-size:17px;
      margin-bottom:24px;
    }

    .site-footer{
      margin-top:40px;
      background:#10111a;
      color:#fff;
      padding:56px 0 26px;
    }
    .footer-top{
      display:grid;
      grid-template-columns:minmax(0, 1fr) minmax(360px, .9fr);
      gap:40px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      font-size:24px;
      font-weight:950;
      margin-bottom:10px;
    }
    .site-footer p{
      max-width:620px;
      color:rgba(255,255,255,.66);
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
      align-content:flex-start;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      color:rgba(255,255,255,.74);
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      transition:var(--ease);
      font-size:14px;
      font-weight:700;
    }
    .footer-links a:hover{
      color:#fff;
      background:rgba(155,92,255,.24);
      border-color:rgba(155,92,255,.34);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:22px;
      color:rgba(255,255,255,.55);
      font-size:14px;
    }

    @media (max-width:1024px){
      .hero-inner{
        grid-template-columns:1fr;
        gap:30px;
      }
      .hero-panel{
        max-width:640px;
      }
      .grid-3{grid-template-columns:repeat(2, minmax(0, 1fr))}
      .split{grid-template-columns:1fr}
      .image-card img{min-height:340px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px, var(--container))}
      .nav-wrap{height:68px}
      .nav-toggle{display:flex}
      .main-nav{
        position:absolute;
        left:14px;
        right:14px;
        top:76px;
        display:grid;
        grid-template-columns:1fr;
        padding:12px;
        border-radius:22px;
        background:rgba(255,255,255,.96);
        border:1px solid rgba(23,23,36,.10);
        box-shadow:var(--shadow);
        transform:translateY(-10px);
        opacity:0;
        pointer-events:none;
      }
      .main-nav.open{
        transform:translateY(0);
        opacity:1;
        pointer-events:auto;
      }
      .main-nav a{
        padding:12px 14px;
        border-radius:14px;
      }
      .page-hero{min-height:auto}
      .hero-inner{padding:58px 0 96px}
      .hero-lead{font-size:16px}
      main{margin-top:-38px}
      .section{padding:54px 0}
      .notice-strip{grid-template-columns:1fr}
      .age-badge{width:76px;height:76px;border-radius:22px;font-size:24px}
      .grid-3,.grid-2{grid-template-columns:1fr}
      .step{grid-template-columns:1fr}
      .footer-top{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .footer-bottom{flex-direction:column}
      .cta{padding:34px 24px;border-radius:26px}
    }
    @media (max-width:520px){
      .brand-text{font-size:17px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      h1{font-size:34px}
      .hero-actions{align-items:stretch}
      .btn{width:100%}
      .hero-panel{padding:16px;border-radius:22px}
      .hero-panel img{border-radius:18px}
      .card,.notice-strip{padding:20px}
      .faq-q{padding:18px}
      .faq-a p{padding:0 18px 18px}
      .scenario{min-height:230px}
    }