/* roulang page: index */
:root {
      --bg: #0f1117;
      --bg-soft: #171b24;
      --surface: #ffffff;
      --surface-soft: #f6f7fb;
      --text: #171923;
      --text-light: #f8fafc;
      --muted: #687083;
      --muted-light: #b9c0ce;
      --primary: #d83f5f;
      --primary-dark: #a82642;
      --accent: #18a999;
      --gold: #f1b84b;
      --border: rgba(23, 25, 35, 0.12);
      --border-light: rgba(255, 255, 255, 0.16);
      --shadow: 0 22px 60px rgba(10, 14, 24, 0.16);
      --shadow-soft: 0 14px 34px rgba(10, 14, 24, 0.10);
      --radius: 18px;
      --radius-sm: 12px;
      --container: 1180px;
      --nav-height: 76px;
      --transition: 180ms 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", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      color: var(--text);
      background: var(--surface-soft);
      text-rendering: optimizeLegibility;
    }

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

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(24, 169, 153, 0.45);
      outline-offset: 3px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      min-height: var(--nav-height);
      background: rgba(15, 17, 23, 0.86);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-light);
    }

    .nav {
      min-height: var(--nav-height);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--text-light);
      font-weight: 800;
      font-size: 20px;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .logo-mark {
      width: 34px;
      height: 34px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 10px 24px rgba(216, 63, 95, 0.32);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      list-style: none;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 15px;
      border-radius: 999px;
      color: var(--muted-light);
      font-size: 15px;
      transition: background var(--transition), color var(--transition), transform var(--transition);
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-light);
      background: rgba(255, 255, 255, 0.10);
    }

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

    .nav-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 18px;
      border-radius: 999px;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      box-shadow: 0 12px 26px rgba(216, 63, 95, 0.28);
      transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
    }

    .nav-action:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 16px 34px rgba(216, 63, 95, 0.34);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.10);
      color: #fff;
      position: relative;
    }

    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after {
      content: "";
      position: absolute;
      left: 12px;
      right: 12px;
      height: 2px;
      background: #fff;
      border-radius: 4px;
      transition: transform var(--transition), opacity var(--transition);
    }

    .menu-toggle::before {
      top: 14px;
    }

    .menu-toggle span {
      top: 21px;
    }

    .menu-toggle::after {
      top: 28px;
    }

    .hero {
      position: relative;
      min-height: 720px;
      display: flex;
      align-items: center;
      color: var(--text-light);
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(15, 17, 23, 0.94), rgba(15, 17, 23, 0.72), rgba(15, 17, 23, 0.36)),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 160px;
      background: linear-gradient(180deg, rgba(15, 17, 23, 0), var(--surface-soft));
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      padding: 84px 0 120px;
      max-width: 760px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 13px;
      border: 1px solid var(--border-light);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.08);
      color: #eef2f7;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 5px rgba(24, 169, 153, 0.18);
    }

    h1 {
      max-width: 820px;
      font-size: clamp(42px, 7vw, 78px);
      line-height: 1.05;
      letter-spacing: 0;
      margin-bottom: 24px;
    }

    .hero-lead {
      max-width: 660px;
      color: rgba(248, 250, 252, 0.84);
      font-size: 18px;
      line-height: 1.9;
      margin-bottom: 34px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 44px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 22px;
      border-radius: 999px;
      font-weight: 800;
      transition: transform var(--transition), background var(--transition), border var(--transition), box-shadow var(--transition);
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 16px 34px rgba(216, 63, 95, 0.30);
    }

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

    .btn-secondary {
      color: var(--text-light);
      border: 1px solid var(--border-light);
      background: rgba(255, 255, 255, 0.08);
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.15);
      transform: translateY(-2px);
    }

    .hero-strip {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      max-width: 720px;
    }

    .hero-stat {
      padding: 18px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(10px);
    }

    .hero-stat strong {
      display: block;
      font-size: 26px;
      line-height: 1.1;
      margin-bottom: 6px;
    }

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

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

    .section {
      padding: 82px 0;
    }

    .section-tight {
      padding: 62px 0;
    }

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

    .section-title {
      max-width: 720px;
    }

    .section-title .kicker {
      color: var(--primary);
      font-weight: 800;
      margin-bottom: 8px;
    }

    .section-title h2 {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      letter-spacing: 0;
      margin-bottom: 12px;
    }

    .section-title p {
      color: var(--muted);
      font-size: 16px;
      max-width: 690px;
    }

    .badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(216, 63, 95, 0.10);
      border: 1px solid rgba(216, 63, 95, 0.16);
      font-weight: 700;
      font-size: 13px;
    }

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

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

    .card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow);
      border-color: rgba(216, 63, 95, 0.26);
    }

    .feature-card {
      padding: 26px;
    }

    .icon-box {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      margin-bottom: 20px;
      background: rgba(24, 169, 153, 0.12);
      color: var(--accent);
      font-weight: 900;
      font-size: 20px;
    }

    .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;
    }

    .showcase {
      background: var(--bg);
      color: var(--text-light);
      overflow: hidden;
    }

    .showcase .section-title p {
      color: var(--muted-light);
    }

    .showcase-layout {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 34px;
      align-items: center;
    }

    .showcase-img {
      border-radius: 24px;
      overflow: hidden;
      min-height: 420px;
      box-shadow: 0 26px 70px rgba(0, 0, 0, 0.34);
    }

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

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

    .check-list li {
      display: flex;
      gap: 12px;
      padding: 18px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid var(--border-light);
      color: rgba(248, 250, 252, 0.86);
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 24px;
      height: 24px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--accent);
      color: #071514;
      font-weight: 900;
      margin-top: 2px;
    }

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

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

    .category-body {
      padding: 24px;
    }

    .category-meta {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: var(--muted);
      font-size: 13px;
      margin-top: 18px;
      padding-top: 16px;
      border-top: 1px solid var(--border);
    }

    .experience-band {
      background:
        linear-gradient(135deg, rgba(216, 63, 95, 0.92), rgba(24, 169, 153, 0.86)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      color: #fff;
    }

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

    .process-step {
      padding: 24px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.22);
      backdrop-filter: blur(12px);
    }

    .process-step span {
      display: inline-grid;
      place-items: center;
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.92);
      color: var(--primary-dark);
      font-weight: 900;
      margin-bottom: 18px;
    }

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

    .process-step p {
      color: rgba(255, 255, 255, 0.84);
      font-size: 14px;
    }

    .updates {
      background: #fff;
    }

    .update-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .update-card {
      padding: 22px;
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 18px;
      align-items: center;
    }

    .update-thumb {
      width: 120px;
      height: 92px;
      border-radius: 14px;
      overflow: hidden;
      background: var(--surface-soft);
    }

    .update-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .update-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 8px;
      color: var(--muted);
      font-size: 13px;
    }

    .empty-state {
      grid-column: 1 / -1;
      padding: 30px;
      border-radius: var(--radius);
      background: var(--surface-soft);
      border: 1px dashed var(--border);
      color: var(--muted);
      text-align: center;
      font-weight: 700;
    }

    .trust-grid {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: 24px;
      align-items: stretch;
    }

    .trust-panel {
      padding: 30px;
      border-radius: 24px;
      background: var(--bg);
      color: var(--text-light);
      box-shadow: var(--shadow);
    }

    .trust-panel h2 {
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.2;
      margin-bottom: 16px;
    }

    .trust-panel p {
      color: var(--muted-light);
    }

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

    .metric-card {
      padding: 24px;
      border-radius: var(--radius);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-soft);
    }

    .metric-card strong {
      display: block;
      font-size: 34px;
      line-height: 1.1;
      color: var(--primary);
      margin-bottom: 8px;
    }

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

    .faq-wrap {
      max-width: 900px;
      margin: 0 auto;
    }

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

    .faq-item + .faq-item {
      margin-top: 14px;
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      padding: 22px 24px;
      background: #fff;
      color: var(--text);
      font-weight: 800;
      text-align: left;
    }

    .faq-question::after {
      content: "+";
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--surface-soft);
      color: var(--primary);
      font-size: 20px;
      transition: transform var(--transition);
    }

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

    .faq-answer {
      display: none;
      padding: 0 24px 24px;
      color: var(--muted);
    }

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

    .cta {
      padding: 76px 0;
      background: var(--bg);
      color: var(--text-light);
    }

    .cta-box {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      padding: 42px;
      border-radius: 28px;
      border: 1px solid var(--border-light);
      background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.04)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      box-shadow: 0 28px 72px rgba(0, 0, 0, 0.30);
    }

    .cta-box h2 {
      font-size: clamp(28px, 4vw, 42px);
      line-height: 1.2;
      margin-bottom: 12px;
    }

    .cta-box p {
      color: rgba(248, 250, 252, 0.82);
      max-width: 720px;
    }

    .site-footer {
      background: #090b10;
      color: var(--muted-light);
      padding: 52px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 34px;
      padding-bottom: 34px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    }

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

    .footer-text {
      max-width: 560px;
      color: var(--muted-light);
    }

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

    .footer-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: var(--muted-light);
      background: rgba(255, 255, 255, 0.06);
      transition: color var(--transition), background var(--transition);
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.12);
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      padding-top: 24px;
      color: rgba(185, 192, 206, 0.72);
      font-size: 14px;
    }

    @media (max-width: 1024px) {
      .nav {
        gap: 18px;
      }

      .nav-action {
        display: none;
      }

      .hero {
        min-height: 650px;
      }

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

      .showcase-layout,
      .trust-grid {
        grid-template-columns: 1fr;
      }

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

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

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

      .nav-links {
        position: absolute;
        top: var(--nav-height);
        left: 14px;
        right: 14px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 18px;
        background: rgba(15, 17, 23, 0.96);
        border: 1px solid var(--border-light);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        justify-content: flex-start;
      }

      .hero {
        min-height: auto;
      }

      .hero-inner {
        padding: 74px 0 96px;
      }

      .hero-strip,
      .feature-grid,
      .category-grid,
      .update-list,
      .metrics {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 62px 0;
      }

      .section-head {
        display: block;
      }

      .badge-row {
        margin-top: 18px;
      }

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

      .update-thumb {
        width: 100%;
        height: 180px;
      }

      .cta-box,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

    @media (max-width: 520px) {
      .logo {
        font-size: 17px;
      }

      .logo-mark {
        width: 30px;
        height: 30px;
      }

      .hero-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

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

      .feature-card,
      .category-body,
      .trust-panel,
      .metric-card,
      .cta-box {
        padding: 22px;
      }

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

/* roulang page: article */
:root{
      --bg:#070b12;
      --bg-soft:#0f1624;
      --panel:#121c2c;
      --panel-2:#172338;
      --text:#f3f6fb;
      --muted:#a9b6cc;
      --line:rgba(255,255,255,.1);
      --brand:#7c5cff;
      --brand-2:#18c7c9;
      --accent:#ff6b6b;
      --shadow:0 18px 40px rgba(0,0,0,.28);
      --radius:20px;
      --radius-sm:12px;
      --container:1180px;
      --transition:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      background:
        radial-gradient(circle at top left, rgba(124,92,255,.16), transparent 30%),
        radial-gradient(circle at top right, rgba(24,199,201,.12), transparent 26%),
        var(--bg);
      color:var(--text);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ul{margin:0;padding:0;list-style:none}
    h1,h2,h3,h4,p{margin:0}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(7,11,18,.72);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .nav{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-size:1.1rem;
      font-weight:800;
      letter-spacing:0;
    }
    .logo-mark{
      width:14px;
      height:14px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 0 0 8px rgba(124,92,255,.16);
      flex:0 0 auto;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .nav-links a{
      color:var(--muted);
      padding:10px 14px;
      border-radius:999px;
      transition:var(--transition);
      font-size:.96rem;
    }
    .nav-links a:hover,
    .nav-links a.active{
      color:var(--text);
      background:rgba(255,255,255,.08);
    }
    .nav-action,
    .btn-primary,
    .btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      transition:var(--transition);
      cursor:pointer;
      white-space:nowrap;
    }
    .nav-action,
    .btn-primary{
      background:linear-gradient(135deg,var(--brand),#9d7cff);
      color:#fff;
      box-shadow:0 14px 30px rgba(124,92,255,.32);
    }
    .nav-action:hover,
    .btn-primary:hover{
      transform:translateY(-1px);
      box-shadow:0 18px 34px rgba(124,92,255,.4);
    }
    .btn-secondary{
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-color:rgba(255,255,255,.08);
    }
    .btn-secondary:hover{
      background:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      color:var(--text);
      position:relative;
      cursor:pointer;
    }
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      position:absolute;
      left:12px;
      width:20px;
      height:2px;
      background:#fff;
      border-radius:2px;
      transition:var(--transition);
    }
    .menu-toggle span{top:22px}
    .menu-toggle span::before{top:-7px;left:0}
    .menu-toggle span::after{top:7px;left:0}
    .hero-banner{
      position:relative;
      overflow:hidden;
      padding:88px 0 56px;
      background:
        linear-gradient(180deg, rgba(7,11,18,.32), rgba(7,11,18,.86)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .hero-banner::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg, rgba(7,11,18,.9) 0%, rgba(7,11,18,.62) 48%, rgba(7,11,18,.82) 100%);
    }
    .hero-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.4fr) minmax(280px,.8fr);
      gap:28px;
      align-items:end;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#d9e3f4;
      font-size:.92rem;
      margin-bottom:18px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--brand-2);
      box-shadow:0 0 0 6px rgba(24,199,201,.14);
    }
    .hero-copy h1{
      font-size:clamp(2rem,4vw,3.8rem);
      line-height:1.1;
      max-width:14ch;
    }
    .hero-copy p{
      margin-top:18px;
      color:#d6dff0;
      font-size:1.06rem;
      max-width:64ch;
    }
    .meta-panel{
      position:relative;
      z-index:1;
      background:rgba(12,18,30,.72);
      border:1px solid rgba(255,255,255,.08);
      border-radius:var(--radius);
      padding:22px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(10px);
    }
    .meta-list{
      display:grid;
      gap:14px;
    }
    .meta-item{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding-bottom:14px;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .meta-item:last-child{padding-bottom:0;border-bottom:none}
    .meta-label{color:var(--muted);font-size:.92rem}
    .meta-value{color:var(--text);text-align:right}
    .page-main{padding:34px 0 72px}
    .content-shell{
      display:grid;
      grid-template-columns:minmax(0,1.65fr) minmax(280px,.75fr);
      gap:28px;
      align-items:start;
    }
    .article-card,
    .side-card,
    .cta-panel,
    .faq-card{
      background:linear-gradient(180deg, rgba(18,28,44,.96), rgba(14,22,34,.96));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .article-card{padding:34px}
    .article-content{
      color:#eaf1ff;
      font-size:1.03rem;
    }
    .article-content h2,
    .article-content h3{
      margin:28px 0 14px;
      line-height:1.25;
      color:#fff;
    }
    .article-content p{margin:0 0 16px}
    .article-content ul,
    .article-content ol{
      margin:0 0 18px 20px;
      padding:0;
      color:#dbe6f8;
    }
    .article-content li{margin:0 0 10px}
    .article-content a{
      color:#99e8ea;
      text-decoration:underline;
      text-decoration-color:rgba(153,232,234,.4);
    }
    .article-empty{
      display:grid;
      gap:18px;
      justify-items:start;
    }
    .article-empty h2{font-size:1.8rem}
    .article-empty p{color:var(--muted)}
    .side-stack{display:grid;gap:22px}
    .side-card{padding:22px}
    .side-title{
      font-size:1.08rem;
      margin-bottom:16px;
    }
    .side-list{
      display:grid;
      gap:14px;
    }
    .side-list a,
    .feature-link{
      display:flex;
      gap:14px;
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
      transition:var(--transition);
    }
    .side-list a:hover,
    .feature-link:hover{
      transform:translateY(-2px);
      border-color:rgba(124,92,255,.42);
      box-shadow:0 14px 24px rgba(0,0,0,.18);
    }
    .thumb{
      width:90px;
      height:72px;
      border-radius:14px;
      overflow:hidden;
      flex:0 0 auto;
    }
    .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .link-copy strong{
      display:block;
      font-size:.98rem;
      line-height:1.4;
      margin-bottom:6px;
    }
    .link-copy span{
      color:var(--muted);
      font-size:.9rem;
      display:block;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:36px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(124,92,255,.12);
      color:#d8d0ff;
      border:1px solid rgba(124,92,255,.26);
      font-size:.92rem;
    }
    .stats-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
    }
    .stat{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
    }
    .stat strong{
      display:block;
      font-size:1.4rem;
      margin-bottom:6px;
    }
    .stat span{
      color:var(--muted);
      font-size:.9rem;
    }
    .section{
      margin-top:28px;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:18px;
    }
    .section-head h2{
      font-size:1.6rem;
      line-height:1.2;
    }
    .section-head p{
      color:var(--muted);
      max-width:56ch;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .feature-link img{
      width:110px;
      height:110px;
      object-fit:cover;
      border-radius:14px;
      flex:0 0 auto;
    }
    .feature-body{
      display:grid;
      gap:8px;
      align-content:start;
    }
    .feature-body b{
      font-size:1.02rem;
      line-height:1.4;
    }
    .feature-body p{
      color:var(--muted);
      font-size:.94rem;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-card{padding:22px}
    .faq-card h3{
      font-size:1.04rem;
      margin-bottom:8px;
    }
    .faq-card p{color:var(--muted)}
    .cta-panel{
      margin-top:30px;
      padding:28px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      background:
        linear-gradient(135deg, rgba(124,92,255,.18), rgba(24,199,201,.14)),
        linear-gradient(180deg, rgba(18,28,44,.96), rgba(14,22,34,.96));
    }
    .cta-panel h2{
      font-size:1.7rem;
      margin-bottom:10px;
    }
    .cta-panel p{
      color:#d7e0f2;
      max-width:58ch;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      flex:0 0 auto;
    }
    .site-footer{
      border-top:1px solid rgba(255,255,255,.08);
      background:#0a1019;
      padding:28px 0 34px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.3fr) minmax(220px,.7fr);
      gap:24px;
      padding-bottom:22px;
    }
    .footer-brand{
      font-size:1.2rem;
      font-weight:800;
      margin-bottom:12px;
    }
    .footer-text{
      color:var(--muted);
      max-width:62ch;
    }
    .footer-links{
      display:grid;
      gap:12px;
      justify-content:start;
    }
    .footer-links a{
      color:#dbe4f6;
      transition:var(--transition);
    }
    .footer-links a:hover{color:#fff}
    .copyright{
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.06);
      display:flex;
      justify-content:space-between;
      gap:16px;
      color:var(--muted);
      font-size:.92rem;
      flex-wrap:wrap;
    }
    a:focus-visible,
    button:focus-visible{
      outline:3px solid rgba(24,199,201,.55);
      outline-offset:2px;
    }
    @media (max-width:1024px){
      .hero-inner,
      .content-shell,
      .footer-grid,
      .cta-panel{
        grid-template-columns:1fr;
      }
      .hero-copy h1{max-width:none}
      .meta-panel{max-width:560px}
    }
    @media (max-width:768px){
      .menu-toggle{display:inline-flex}
      .nav{
        flex-wrap:wrap;
        padding:14px 0;
      }
      .nav-links{
        width:100%;
        display:none;
        flex-direction:column;
        align-items:stretch;
        margin:0;
        padding-top:8px;
      }
      .nav-links.open{display:flex}
      .nav-links a{
        width:100%;
        padding:12px 14px;
        border-radius:14px;
      }
      .nav-action{
        margin-left:auto;
      }
      .hero-banner{padding:74px 0 44px}
      .article-card{padding:24px}
      .feature-grid,
      .stats-grid{
        grid-template-columns:1fr;
      }
    }
    @media (max-width:520px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .hero-copy h1{font-size:2rem}
      .section-head h2,
      .cta-panel h2{font-size:1.35rem}
      .nav-action{display:none}
      .thumb{width:78px;height:64px}
      .feature-link{
        flex-direction:column;
      }
      .feature-link img{
        width:100%;
        height:180px;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#090b12;
      --bg-soft:#111522;
      --bg-card:#171b2a;
      --bg-card-2:#101828;
      --text:#f6f7fb;
      --muted:#aeb6c8;
      --muted-2:#7d879c;
      --primary:#ff4d7d;
      --primary-2:#ff8a3d;
      --accent:#6ee7f9;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(255,255,255,.18);
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --shadow-soft:0 14px 38px rgba(0,0,0,.26);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
      --ease:all .24s ease;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 8% 8%,rgba(255,77,125,.18),transparent 32%),
        radial-gradient(circle at 88% 12%,rgba(110,231,249,.12),transparent 30%),
        linear-gradient(180deg,#080a10 0%,#0d111c 46%,#090b12 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(255,77,125,.35);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid var(--line);
      background:rgba(9,11,18,.78);
      backdrop-filter:blur(18px);
    }
    .nav{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:24px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:.02em;
      white-space:nowrap;
      font-size:20px;
    }
    .logo-mark{
      width:36px;
      height:36px;
      border-radius:13px;
      background:
        linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 10px 28px rgba(255,77,125,.28);
      position:relative;
      flex:0 0 auto;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border-radius:50%;
      border:2px solid rgba(255,255,255,.88);
      border-left-color:transparent;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      list-style:none;
      margin:0 0 0 auto;
      padding:0;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:0 14px;
      border-radius:999px;
      color:var(--muted);
      font-weight:700;
      font-size:14px;
      transition:var(--ease);
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(255,77,125,.92),rgba(255,138,61,.86));
      box-shadow:0 12px 26px rgba(255,77,125,.22);
    }
    .nav-action{
      padding:11px 17px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.06);
      color:#fff;
      font-weight:800;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-action:hover{
      transform:translateY(-2px);
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.26);
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
      border-radius:14px;
      margin-left:auto;
      position:relative;
    }
    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      height:2px;
      border-radius:2px;
      background:#fff;
      transition:var(--ease);
    }
    .menu-toggle span{top:21px}
    .menu-toggle::before{top:14px}
    .menu-toggle::after{top:28px}
    .menu-toggle.is-open span{opacity:0}
    .menu-toggle.is-open::before{top:21px;transform:rotate(45deg)}
    .menu-toggle.is-open::after{top:21px;transform:rotate(-45deg)}
    main{position:relative}
    .section{padding:88px 0}
    .section.tight{padding:62px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.07);
      color:#ffd7e2;
      font-size:13px;
      font-weight:900;
      letter-spacing:.04em;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,77,125,.18);
    }
    .hero-category{
      min-height:640px;
      display:flex;
      align-items:center;
      position:relative;
      overflow:hidden;
      border-bottom:1px solid var(--line);
    }
    .hero-category::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(9,11,18,.96) 0%,rgba(9,11,18,.82) 48%,rgba(9,11,18,.54) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      transform:scale(1.02);
    }
    .hero-category::after{
      content:"";
      position:absolute;
      inset:auto 0 0 0;
      height:180px;
      background:linear-gradient(180deg,transparent,var(--bg));
    }
    .hero-inner{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      align-items:center;
      gap:56px;
      padding:72px 0;
    }
    .hero-copy h1{
      margin:22px 0 18px;
      font-size:clamp(38px,6vw,74px);
      line-height:1.04;
      letter-spacing:-.06em;
      max-width:850px;
    }
    .hero-copy p{
      margin:0;
      max-width:760px;
      color:var(--muted);
      font-size:18px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:34px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      transition:var(--ease);
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 16px 34px rgba(255,77,125,.28);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 45px rgba(255,77,125,.36)}
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.18);
    }
    .btn-secondary:hover{background:rgba(255,255,255,.13);transform:translateY(-3px)}
    .btn:focus-visible,.nav-links a:focus-visible,.nav-action:focus-visible,.menu-toggle:focus-visible{
      outline:3px solid rgba(110,231,249,.55);
      outline-offset:3px;
    }
    .hero-panel{
      border:1px solid var(--line-strong);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(23,27,42,.86),rgba(16,24,40,.72));
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .visual-card{
      position:relative;
      min-height:430px;
    }
    .visual-card img{
      width:100%;
      height:430px;
      object-fit:cover;
      opacity:.86;
    }
    .visual-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 35%,rgba(9,11,18,.92) 100%);
    }
    .visual-info{
      position:absolute;
      left:24px;
      right:24px;
      bottom:22px;
      z-index:2;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-bottom:16px;
    }
    .tag,.badge{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.14);
      color:#f7f8ff;
      font-size:12px;
      font-weight:800;
    }
    .visual-info h2{
      margin:0 0 10px;
      font-size:25px;
      letter-spacing:-.02em;
    }
    .visual-info p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .notice-bar{
      margin-top:24px;
      padding:16px 18px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.06);
      color:#dfe4f1;
      font-size:14px;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin:14px 0 0;
      font-size:clamp(28px,4vw,46px);
      line-height:1.16;
      letter-spacing:-.04em;
    }
    .section-desc{
      max-width:560px;
      color:var(--muted);
      margin:0;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .card{
      border:1px solid var(--line);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      border-radius:var(--radius-md);
      padding:24px;
      box-shadow:var(--shadow-soft);
      transition:var(--ease);
    }
    .card:hover{
      transform:translateY(-6px);
      border-color:rgba(255,255,255,.24);
      background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.045));
    }
    .icon{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:16px;
      background:linear-gradient(135deg,rgba(255,77,125,.95),rgba(110,231,249,.45));
      color:#fff;
      font-size:22px;
      font-weight:900;
      margin-bottom:18px;
    }
    .card h3{
      margin:0 0 10px;
      font-size:21px;
      letter-spacing:-.02em;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
    }
    .split{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:34px;
      align-items:center;
    }
    .media-frame{
      border-radius:var(--radius-lg);
      overflow:hidden;
      border:1px solid var(--line-strong);
      box-shadow:var(--shadow);
      position:relative;
      background:#111522;
    }
    .media-frame img{
      width:100%;
      height:520px;
      object-fit:cover;
      opacity:.9;
    }
    .media-frame .media-label{
      position:absolute;
      left:20px;
      top:20px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(9,11,18,.72);
      border:1px solid rgba(255,255,255,.18);
      backdrop-filter:blur(10px);
      font-size:13px;
      font-weight:900;
    }
    .check-list{
      display:grid;
      gap:14px;
      margin:26px 0 0;
      padding:0;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:15px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.055);
      border:1px solid var(--line);
      color:#dce2ef;
    }
    .check-list li::before{
      content:"✓";
      flex:0 0 24px;
      width:24px;
      height:24px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      font-size:14px;
      font-weight:900;
      margin-top:2px;
    }
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .scenario{
      min-height:214px;
      padding:22px;
      border-radius:var(--radius-md);
      border:1px solid var(--line);
      background:
        linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      position:relative;
      overflow:hidden;
      transition:var(--ease);
    }
    .scenario::after{
      content:"";
      position:absolute;
      width:120px;
      height:120px;
      right:-46px;
      bottom:-48px;
      border-radius:50%;
      background:rgba(255,77,125,.16);
    }
    .scenario:hover{transform:translateY(-5px);border-color:rgba(255,255,255,.24)}
    .scenario strong{
      display:block;
      font-size:18px;
      margin-bottom:8px;
    }
    .scenario p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .process{
      counter-reset:step;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .step{
      counter-increment:step;
      padding:24px;
      border-radius:var(--radius-md);
      border:1px solid var(--line);
      background:rgba(255,255,255,.055);
      position:relative;
    }
    .step::before{
      content:"0" counter(step);
      display:inline-flex;
      margin-bottom:18px;
      color:#fff;
      font-size:13px;
      font-weight:900;
      letter-spacing:.06em;
      padding:6px 10px;
      border-radius:999px;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
    }
    .step h3{margin:0 0 8px;font-size:18px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .latest-panel{
      border:1px solid var(--line-strong);
      border-radius:var(--radius-lg);
      padding:28px;
      background:
        linear-gradient(135deg,rgba(255,77,125,.12),rgba(110,231,249,.08)),
        rgba(255,255,255,.045);
      box-shadow:var(--shadow-soft);
    }
    .latest-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:center;
    }
    .update-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .update-list li{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding:14px 0;
      border-bottom:1px solid var(--line);
      color:#dfe4f1;
    }
    .update-list li:last-child{border-bottom:0}
    .update-list span:last-child{color:var(--muted-2);white-space:nowrap}
    .mini-form{
      padding:22px;
      border-radius:var(--radius-md);
      background:rgba(9,11,18,.48);
      border:1px solid var(--line);
    }
    .mini-form label{
      display:block;
      margin-bottom:10px;
      color:#fff;
      font-weight:900;
    }
    .input-row{
      display:flex;
      gap:10px;
      margin-top:14px;
    }
    .input-row input{
      min-width:0;
      flex:1;
      height:48px;
      border:1px solid rgba(255,255,255,.16);
      border-radius:999px;
      background:rgba(255,255,255,.07);
      color:#fff;
      padding:0 16px;
      outline:none;
      transition:var(--ease);
    }
    .input-row input::placeholder{color:#8d97ab}
    .input-row input:focus{
      border-color:rgba(110,231,249,.65);
      box-shadow:0 0 0 4px rgba(110,231,249,.12);
    }
    .input-row button{
      border:0;
      border-radius:999px;
      padding:0 18px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      font-weight:900;
    }
    .form-tip{
      margin:10px 0 0;
      color:var(--muted-2);
      font-size:13px;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:34px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.055);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      border:0;
      background:transparent;
      color:#fff;
      text-align:left;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      font-weight:900;
    }
    .faq-q::after{
      content:"+";
      width:26px;
      height:26px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:rgba(255,255,255,.1);
      color:#fff;
      flex:0 0 auto;
      transition:var(--ease);
    }
    .faq-item.open .faq-q::after{
      content:"−";
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
    }
    .faq-a{
      display:none;
      padding:0 22px 20px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.open .faq-a{display:block}
    .cta{
      padding:72px 0 96px;
    }
    .cta-box{
      border-radius:32px;
      padding:44px;
      border:1px solid rgba(255,255,255,.18);
      background:
        linear-gradient(135deg,rgba(255,77,125,.88),rgba(255,138,61,.72)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
      position:relative;
      overflow:hidden;
    }
    .cta-box::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(9,11,18,.35),rgba(9,11,18,.08));
    }
    .cta-box > *{position:relative;z-index:1}
    .cta h2{
      margin:0 0 10px;
      font-size:clamp(28px,4vw,46px);
      line-height:1.15;
      letter-spacing:-.04em;
    }
    .cta p{
      margin:0;
      max-width:680px;
      color:rgba(255,255,255,.88);
    }
    .cta .btn{
      background:#fff;
      color:#121522;
      box-shadow:0 16px 34px rgba(0,0,0,.18);
      flex:0 0 auto;
    }
    .cta .btn:hover{transform:translateY(-3px)}
    .site-footer{
      border-top:1px solid var(--line);
      background:#070910;
      padding:48px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:32px;
      align-items:start;
    }
    .footer-brand{
      font-size:22px;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer-text{
      margin:0;
      max-width:620px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.045);
      border:1px solid transparent;
      transition:var(--ease);
      font-size:14px;
      font-weight:800;
    }
    .footer-links a:hover{
      color:#fff;
      border-color:rgba(255,255,255,.15);
      background:rgba(255,255,255,.08);
    }
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid var(--line);
      display:flex;
      justify-content:space-between;
      gap:16px;
      color:var(--muted-2);
      font-size:13px;
    }
    @media (max-width:1024px){
      .hero-inner,.split,.latest-grid,.faq-wrap{grid-template-columns:1fr}
      .hero-category{min-height:auto}
      .hero-panel{max-width:680px}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .scenario-grid,.process{grid-template-columns:repeat(2,1fr)}
      .section-head{align-items:flex-start;flex-direction:column}
      .nav-action{display:none}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .site-header{position:sticky}
      .nav{min-height:68px}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:76px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:22px;
        background:rgba(12,15,24,.96);
        box-shadow:var(--shadow);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{
        justify-content:center;
        min-height:46px;
      }
      .hero-inner{padding:54px 0;gap:30px}
      .hero-copy p{font-size:16px}
      .visual-card,.visual-card img{min-height:360px;height:360px}
      .section{padding:66px 0}
      .feature-grid,.scenario-grid,.process{grid-template-columns:1fr}
      .media-frame img{height:380px}
      .cta-box{align-items:flex-start;flex-direction:column;padding:32px}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      .logo{font-size:17px}
      .logo-mark{width:32px;height:32px;border-radius:12px}
      .hero-copy h1{font-size:36px}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .card,.step,.scenario{padding:20px}
      .latest-panel{padding:20px}
      .update-list li{flex-direction:column;gap:4px}
      .input-row{flex-direction:column}
      .input-row button{height:48px}
      .faq-q{padding:18px}
      .faq-a{padding:0 18px 18px}
      .cta-box{padding:26px}
    }

/* roulang page: category3 */
:root{
      --bg:#0b0d12;
      --bg-soft:#121621;
      --bg-card:#171c29;
      --bg-card-2:#1d2332;
      --text:#f7f8fb;
      --muted:#a9b1c3;
      --weak:#778197;
      --primary:#ff4d7d;
      --primary-2:#ff8a5b;
      --accent:#8b5cf6;
      --success:#41d6a4;
      --border:rgba(255,255,255,.10);
      --border-strong:rgba(255,255,255,.18);
      --shadow:0 24px 70px rgba(0,0,0,.38);
      --shadow-soft:0 14px 40px rgba(0,0,0,.22);
      --radius-lg:28px;
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
      --header-h:76px;
      --ease:all .25s 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 14% 8%, rgba(255,77,125,.20), transparent 34%),
        radial-gradient(circle at 80% 12%, rgba(139,92,246,.16), transparent 30%),
        linear-gradient(180deg,#090b10 0%,#0d111b 48%,#090b10 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(255,77,125,.35);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      height:var(--header-h);
      background:rgba(9,11,16,.78);
      border-bottom:1px solid var(--border);
      backdrop-filter:blur(18px);
    }
    .nav{
      height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:.3px;
      white-space:nowrap;
      font-size:20px;
    }
    .logo-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      background:
        linear-gradient(135deg,var(--primary),var(--primary-2));
      position:relative;
      box-shadow:0 10px 30px rgba(255,77,125,.35);
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border-radius:50%;
      border:2px solid rgba(255,255,255,.82);
      box-shadow:0 0 0 5px rgba(255,255,255,.12);
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      list-style:none;
      padding:6px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.04);
      border-radius:999px;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      height:38px;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(255,77,125,.95),rgba(139,92,246,.78));
      box-shadow:0 10px 25px rgba(255,77,125,.20);
    }
    .nav-action{
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 18px;
      border-radius:999px;
      color:#fff;
      font-weight:700;
      font-size:14px;
      background:rgba(255,255,255,.08);
      border:1px solid var(--border-strong);
      transition:var(--ease);
      white-space:nowrap;
    }
    .nav-action:hover{
      transform:translateY(-2px);
      background:rgba(255,255,255,.13);
      border-color:rgba(255,255,255,.28);
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.08);
      border:1px solid var(--border);
      position:relative;
    }
    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after{
      content:"";
      position:absolute;
      left:12px;
      width:20px;
      height:2px;
      background:#fff;
      border-radius:999px;
      transition:var(--ease);
    }
    .menu-toggle span{top:21px}
    .menu-toggle::before{top:14px}
    .menu-toggle::after{top:28px}
    .menu-toggle.open span{opacity:0}
    .menu-toggle.open::before{top:21px;transform:rotate(45deg)}
    .menu-toggle.open::after{top:21px;transform:rotate(-45deg)}
    .section{
      padding:92px 0;
      position:relative;
    }
    .section.compact{padding:68px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#ffd7e2;
      background:rgba(255,77,125,.12);
      border:1px solid rgba(255,77,125,.25);
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 6px rgba(65,214,164,.13);
    }
    .hero{
      min-height:620px;
      display:flex;
      align-items:center;
      padding:76px 0 94px;
      background:
        linear-gradient(90deg,rgba(9,11,16,.96) 0%,rgba(9,11,16,.82) 48%,rgba(9,11,16,.45) 100%),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      border-bottom:1px solid var(--border);
      position:relative;
      overflow:hidden;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:auto -10% -35% -10%;
      height:260px;
      background:radial-gradient(closest-side,rgba(255,77,125,.24),transparent);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:2;
      max-width:880px;
    }
    .hero h1{
      font-size:clamp(40px,6vw,76px);
      line-height:1.05;
      letter-spacing:-2.8px;
      margin-bottom:24px;
      max-width:820px;
    }
    .hero h1 span{
      background:linear-gradient(135deg,#fff 10%,#ffd0dc 45%,#ff8a5b 88%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-subtitle{
      max-width:760px;
      color:#d8deeb;
      font-size:18px;
      line-height:1.95;
      margin-bottom:34px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-bottom:34px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:50px;
      padding:0 22px;
      border-radius:999px;
      font-weight:850;
      transition:var(--ease);
      border:1px solid transparent;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      box-shadow:0 18px 44px rgba(255,77,125,.30);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 24px 58px rgba(255,77,125,.38)}
    .btn-ghost{
      color:#fff;
      background:rgba(255,255,255,.08);
      border-color:var(--border-strong);
    }
    .btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-3px)}
    .btn:focus-visible,
    .nav-links a:focus-visible,
    .nav-action:focus-visible,
    .menu-toggle:focus-visible,
    .field input:focus-visible{
      outline:3px solid rgba(255,77,125,.42);
      outline-offset:3px;
    }
    .hero-strip{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#dce3f3;
      background:rgba(255,255,255,.07);
      border:1px solid var(--border);
      font-size:13px;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:30px;
      margin-bottom:34px;
    }
    .section-title{
      max-width:760px;
    }
    .section-title h2{
      font-size:clamp(28px,4vw,46px);
      line-height:1.15;
      letter-spacing:-1.2px;
      margin-bottom:14px;
    }
    .section-title p{
      color:var(--muted);
      font-size:16px;
      max-width:720px;
    }
    .notice-card{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .glass-card{
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .notice-content{
      padding:34px;
    }
    .notice-content h2{
      font-size:34px;
      line-height:1.2;
      margin-bottom:16px;
    }
    .notice-content p{
      color:var(--muted);
      margin-bottom:18px;
    }
    .check-list{
      list-style:none;
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .check-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      color:#dce3f3;
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid var(--border);
    }
    .check-list li::before{
      content:"✓";
      flex:0 0 24px;
      height:24px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#07100d;
      background:var(--success);
      font-weight:900;
      margin-top:2px;
    }
    .image-panel{
      min-height:420px;
      position:relative;
    }
    .image-panel img{
      width:100%;
      height:100%;
      min-height:420px;
      object-fit:cover;
    }
    .image-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(0,0,0,.06),rgba(0,0,0,.62));
    }
    .image-caption{
      position:absolute;
      left:24px;
      right:24px;
      bottom:24px;
      z-index:2;
      padding:18px;
      border-radius:18px;
      background:rgba(10,13,20,.72);
      border:1px solid var(--border);
      backdrop-filter:blur(12px);
    }
    .image-caption strong{display:block;font-size:18px;margin-bottom:4px}
    .image-caption span{color:var(--muted);font-size:14px}
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:20px;
    }
    .feature-card{
      padding:26px;
      background:var(--bg-card);
      border:1px solid var(--border);
      border-radius:var(--radius);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .feature-card::before{
      content:"";
      position:absolute;
      inset:0 0 auto 0;
      height:4px;
      background:linear-gradient(90deg,var(--primary),var(--accent));
      opacity:.78;
    }
    .feature-card:hover{
      transform:translateY(-6px);
      border-color:rgba(255,77,125,.35);
      box-shadow:var(--shadow-soft);
      background:var(--bg-card-2);
    }
    .icon{
      width:48px;
      height:48px;
      border-radius:18px;
      display:flex;
      align-items:center;
      justify-content:center;
      margin-bottom:18px;
      background:rgba(255,77,125,.12);
      color:#ffd6e1;
      font-size:22px;
      border:1px solid rgba(255,77,125,.22);
    }
    .feature-card h3{
      font-size:21px;
      margin-bottom:10px;
    }
    .feature-card p{
      color:var(--muted);
      font-size:15px;
    }
    .scenario-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:26px;
      align-items:center;
    }
    .scenario-media{
      border-radius:var(--radius-lg);
      overflow:hidden;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      background:#111;
    }
    .scenario-media img{
      width:100%;
      aspect-ratio:4/5;
      object-fit:cover;
    }
    .scenario-list{
      display:grid;
      gap:16px;
    }
    .scenario-item{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:16px;
      padding:20px;
      border-radius:var(--radius);
      background:rgba(255,255,255,.055);
      border:1px solid var(--border);
      transition:var(--ease);
    }
    .scenario-item:hover{
      background:rgba(255,255,255,.085);
      transform:translateX(4px);
    }
    .num{
      width:54px;
      height:54px;
      border-radius:18px;
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      color:#fff;
      background:linear-gradient(135deg,var(--accent),var(--primary));
      box-shadow:0 14px 30px rgba(139,92,246,.25);
    }
    .scenario-item h3{
      font-size:20px;
      margin-bottom:6px;
    }
    .scenario-item p{color:var(--muted);font-size:15px}
    .process{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
      counter-reset:step;
    }
    .step-card{
      counter-increment:step;
      padding:24px;
      border-radius:var(--radius);
      border:1px solid var(--border);
      background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
      position:relative;
      min-height:210px;
    }
    .step-card::before{
      content:"0" counter(step);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;
      height:42px;
      border-radius:15px;
      margin-bottom:22px;
      color:#fff;
      font-weight:900;
      background:rgba(255,77,125,.16);
      border:1px solid rgba(255,77,125,.26);
    }
    .step-card h3{font-size:19px;margin-bottom:10px}
    .step-card p{font-size:15px;color:var(--muted)}
    .privacy-box{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
      padding:28px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(255,77,125,.16),rgba(139,92,246,.11)),
        rgba(255,255,255,.045);
      border:1px solid var(--border-strong);
      box-shadow:var(--shadow-soft);
    }
    .privacy-box h2{
      font-size:34px;
      line-height:1.18;
      margin-bottom:14px;
    }
    .privacy-box p{color:#d9deeb}
    .mini-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .mini-card{
      padding:18px;
      border-radius:18px;
      background:rgba(9,11,16,.45);
      border:1px solid var(--border);
    }
    .mini-card strong{
      display:block;
      margin-bottom:6px;
      font-size:18px;
    }
    .mini-card span{
      display:block;
      color:var(--muted);
      font-size:14px;
    }
    .faq{
      display:grid;
      gap:14px;
      max-width:920px;
      margin:0 auto;
    }
    .faq-item{
      border:1px solid var(--border);
      border-radius:20px;
      background:rgba(255,255,255,.052);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      color:#fff;
      background:transparent;
      padding:20px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      text-align:left;
      font-weight:850;
      font-size:17px;
    }
    .faq-question::after{
      content:"+";
      width:30px;
      height:30px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      background:rgba(255,255,255,.08);
      color:#fff;
      flex:0 0 30px;
      transition:var(--ease);
    }
    .faq-item.active .faq-question::after{
      content:"−";
      background:rgba(255,77,125,.22);
      color:#ffd7e2;
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-answer p{
      padding:0 22px 22px;
      color:var(--muted);
    }
    .cta{
      padding:42px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(255,77,125,.92),rgba(139,92,246,.82)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta::after{
      content:"";
      position:absolute;
      right:-90px;
      top:-90px;
      width:260px;
      height:260px;
      border-radius:50%;
      background:rgba(255,255,255,.15);
    }
    .cta-inner{
      position:relative;
      z-index:2;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .cta h2{
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      margin-bottom:12px;
    }
    .cta p{
      color:rgba(255,255,255,.86);
      max-width:720px;
    }
    .cta .btn{
      background:#fff;
      color:#151824;
      box-shadow:0 16px 42px rgba(0,0,0,.22);
      flex:0 0 auto;
    }
    .cta .btn:hover{transform:translateY(-3px);box-shadow:0 24px 56px rgba(0,0,0,.28)}
    .site-footer{
      padding:56px 0 30px;
      background:#07090d;
      border-top:1px solid var(--border);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1fr auto;
      gap:34px;
      align-items:start;
      padding-bottom:32px;
      border-bottom:1px solid var(--border);
    }
    .footer-brand{
      font-size:24px;
      font-weight:950;
      margin-bottom:12px;
    }
    .footer-text{
      max-width:620px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-links{
      display:grid;
      grid-template-columns:repeat(2,auto);
      gap:10px 22px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      transition:var(--ease);
    }
    .footer-links a:hover{color:#fff}
    .copyright{
      padding-top:22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1024px){
      .nav-action{display:none}
      .nav-links a{padding:0 12px}
      .notice-card,
      .scenario-wrap,
      .privacy-box{grid-template-columns:1fr}
      .feature-grid{grid-template-columns:repeat(2,1fr)}
      .process{grid-template-columns:repeat(2,1fr)}
      .scenario-media img{aspect-ratio:16/9}
    }
    @media (max-width:768px){
      :root{--header-h:68px}
      .container{width:min(100% - 28px,var(--container))}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(var(--header-h) + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:10px;
        background:rgba(12,15,23,.96);
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{
        height:46px;
        justify-content:center;
      }
      .hero{
        min-height:auto;
        padding:64px 0 74px;
      }
      .hero h1{letter-spacing:-1.5px}
      .hero-subtitle{font-size:16px}
      .section{padding:68px 0}
      .section-head{
        display:block;
        margin-bottom:26px;
      }
      .feature-grid,
      .process,
      .mini-grid{grid-template-columns:1fr}
      .notice-content{padding:26px}
      .privacy-box{padding:22px}
      .cta{padding:28px}
      .cta-inner{display:block}
      .cta .btn{margin-top:22px}
      .footer-grid{
        grid-template-columns:1fr;
      }
      .footer-links{grid-template-columns:1fr}
      .copyright{
        flex-direction:column;
        align-items:flex-start;
      }
    }
    @media (max-width:520px){
      .logo{font-size:17px}
      .logo-mark{width:34px;height:34px;border-radius:12px}
      .hero-actions .btn{width:100%}
      .hero-strip{gap:8px}
      .tag{font-size:12px}
      .notice-content h2,
      .privacy-box h2{font-size:28px}
      .scenario-item{
        grid-template-columns:1fr;
      }
      .num{width:48px;height:48px}
      .faq-question{font-size:16px;padding:18px}
      .faq-answer p{padding:0 18px 18px}
    }

/* roulang page: category1 */
:root{
      --bg:#0b0d14;
      --bg-soft:#121622;
      --panel:#171c2a;
      --panel-2:#1e2535;
      --text:#f7f8fb;
      --muted:#aab2c5;
      --muted-2:#7f8aa2;
      --line:rgba(255,255,255,.10);
      --primary:#ff4d7d;
      --primary-2:#ff7a45;
      --accent:#8b5cf6;
      --success:#35d39f;
      --warning:#ffd166;
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --shadow-soft:0 14px 36px rgba(0,0,0,.24);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 18% 4%, rgba(255,77,125,.20), transparent 32%),
        radial-gradient(circle at 86% 12%, rgba(139,92,246,.18), transparent 30%),
        linear-gradient(180deg,#080a10 0%,var(--bg) 42%,#0d1018 100%);
      line-height:1.72;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(255,77,125,.35);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(9,12,19,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .nav{
      height:76px;
      display:flex;
      align-items:center;
      gap:24px;
      justify-content:space-between;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-size:20px;
      font-weight:900;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .logo-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      background:
        linear-gradient(135deg,var(--primary),var(--primary-2) 52%,var(--accent));
      box-shadow:0 10px 24px rgba(255,77,125,.32);
      position:relative;
      overflow:hidden;
    }
    .logo-mark::after{
      content:"";
      position:absolute;
      width:18px;
      height:18px;
      border:3px solid rgba(255,255,255,.84);
      border-left-color:transparent;
      border-bottom-color:transparent;
      border-radius:50%;
      top:8px;
      left:9px;
      transform:rotate(45deg);
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      list-style:none;
      padding:7px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.08);
      border-radius:999px;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:.22s ease;
      outline:none;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(255,77,125,.96),rgba(139,92,246,.90));
      box-shadow:0 10px 24px rgba(255,77,125,.25);
    }
    .nav-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
      font-weight:800;
      font-size:14px;
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-action:hover,
    .nav-action:focus-visible{
      transform:translateY(-2px);
      background:rgba(255,77,125,.16);
      border-color:rgba(255,77,125,.38);
      box-shadow:0 12px 26px rgba(0,0,0,.22);
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.08);
      border:1px solid var(--line);
      position:relative;
    }
    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      height:2px;
      border-radius:2px;
      background:#fff;
      transition:.22s ease;
    }
    .menu-toggle span{top:21px}
    .menu-toggle::before{top:14px}
    .menu-toggle::after{top:28px}
    .menu-toggle.is-open span{opacity:0}
    .menu-toggle.is-open::before{top:21px;transform:rotate(45deg)}
    .menu-toggle.is-open::after{top:21px;transform:rotate(-45deg)}
    main{position:relative}
    .section{padding:86px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(255,77,125,.12);
      border:1px solid rgba(255,77,125,.24);
      color:#ffd8e2;
      font-size:13px;
      font-weight:800;
      letter-spacing:.04em;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,77,125,.16);
    }
    .hero-category{
      padding:74px 0 56px;
      min-height:560px;
      display:flex;
      align-items:center;
      position:relative;
      overflow:hidden;
      border-bottom:1px solid var(--line);
    }
    .hero-category::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(8,10,16,.94) 0%,rgba(8,10,16,.70) 48%,rgba(8,10,16,.92) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      transform:scale(1.02);
    }
    .hero-category::after{
      content:"";
      position:absolute;
      inset:auto 0 0;
      height:180px;
      background:linear-gradient(180deg,transparent,var(--bg));
    }
    .hero-inner{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.02fr .78fr;
      gap:52px;
      align-items:center;
    }
    .hero-copy h1{
      margin-top:22px;
      font-size:clamp(38px,6vw,72px);
      line-height:1.08;
      letter-spacing:-.045em;
      max-width:760px;
    }
    .hero-copy p{
      margin-top:24px;
      color:#d7ddea;
      font-size:18px;
      max-width:720px;
    }
    .hero-actions{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:14px;
      margin-top:34px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:50px;
      padding:0 22px;
      border-radius:999px;
      font-weight:900;
      transition:.22s ease;
      outline:none;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      box-shadow:0 18px 40px rgba(255,77,125,.32);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      transform:translateY(-3px);
      box-shadow:0 22px 48px rgba(255,77,125,.42);
    }
    .btn-ghost{
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
    }
    .btn-ghost:hover,
    .btn-ghost:focus-visible{
      transform:translateY(-3px);
      background:rgba(255,255,255,.13);
      border-color:rgba(255,255,255,.25);
    }
    .hero-panel{
      background:rgba(18,22,34,.78);
      border:1px solid rgba(255,255,255,.13);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      padding:20px;
      backdrop-filter:blur(18px);
    }
    .featured-media{
      position:relative;
      border-radius:24px;
      overflow:hidden;
      min-height:330px;
      background:#111;
      isolation:isolate;
    }
    .featured-media img{
      width:100%;
      height:330px;
      object-fit:cover;
      opacity:.86;
      filter:saturate(1.08) contrast(1.03);
    }
    .media-badge{
      position:absolute;
      top:18px;
      left:18px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(0,0,0,.48);
      color:#fff;
      border:1px solid rgba(255,255,255,.18);
      font-size:13px;
      font-weight:900;
      backdrop-filter:blur(12px);
    }
    .media-info{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      padding:18px;
      border-radius:20px;
      background:linear-gradient(180deg,rgba(15,18,28,.55),rgba(15,18,28,.88));
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(14px);
    }
    .media-info strong{
      display:block;
      font-size:22px;
      line-height:1.28;
    }
    .media-info span{
      display:block;
      margin-top:8px;
      color:#c5ccdc;
      font-size:14px;
    }
    .quick-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      color:#dfe4ef;
      background:rgba(255,255,255,.075);
      border:1px solid rgba(255,255,255,.10);
      font-size:13px;
      font-weight:800;
    }
    .tag.hot{color:#fff;background:rgba(255,77,125,.16);border-color:rgba(255,77,125,.30)}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:32px;
    }
    .section-title h2{
      margin-top:14px;
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.03em;
    }
    .section-title p{
      margin-top:12px;
      color:var(--muted);
      max-width:720px;
      font-size:16px;
    }
    .mini-note{
      flex:0 0 auto;
      max-width:310px;
      padding:16px 18px;
      border-radius:18px;
      background:rgba(53,211,159,.10);
      border:1px solid rgba(53,211,159,.22);
      color:#d8fff1;
      font-size:14px;
    }
    .quality-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .quality-card{
      padding:24px;
      min-height:220px;
      border-radius:var(--radius-md);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.038));
      border:1px solid rgba(255,255,255,.10);
      box-shadow:var(--shadow-soft);
      transition:.22s ease;
      position:relative;
      overflow:hidden;
    }
    .quality-card::after{
      content:"";
      position:absolute;
      width:120px;
      height:120px;
      border-radius:50%;
      right:-46px;
      top:-46px;
      background:rgba(255,77,125,.12);
      transition:.22s ease;
    }
    .quality-card:hover{
      transform:translateY(-6px);
      border-color:rgba(255,77,125,.28);
      background:linear-gradient(180deg,rgba(255,255,255,.095),rgba(255,255,255,.048));
    }
    .quality-card:hover::after{transform:scale(1.35)}
    .icon{
      width:46px;
      height:46px;
      display:grid;
      place-items:center;
      border-radius:16px;
      background:linear-gradient(135deg,rgba(255,77,125,.24),rgba(139,92,246,.22));
      border:1px solid rgba(255,255,255,.12);
      font-size:22px;
      margin-bottom:18px;
    }
    .quality-card h3{font-size:20px;line-height:1.32;margin-bottom:10px}
    .quality-card p{color:var(--muted);font-size:14px}
    .showcase{
      background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.015));
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .showcase-grid{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:24px;
      align-items:stretch;
    }
    .large-card,
    .side-card{
      border-radius:var(--radius-lg);
      background:var(--panel);
      border:1px solid rgba(255,255,255,.10);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .large-card img{
      width:100%;
      height:360px;
      object-fit:cover;
    }
    .large-card-body{padding:28px}
    .large-card-body h3{font-size:28px;line-height:1.25}
    .large-card-body p{margin-top:12px;color:var(--muted)}
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:20px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.10);
      color:#dce2ee;
      font-size:13px;
      font-weight:800;
    }
    .side-list{
      display:grid;
      gap:16px;
    }
    .side-card{
      display:grid;
      grid-template-columns:148px 1fr;
      min-height:160px;
      transition:.22s ease;
    }
    .side-card:hover{
      transform:translateY(-4px);
      border-color:rgba(139,92,246,.32);
    }
    .side-card img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .side-card-body{padding:18px}
    .side-card-body h3{font-size:18px;line-height:1.35}
    .side-card-body p{margin-top:8px;color:var(--muted);font-size:14px}
    .scene-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .scene-card{
      padding:26px;
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.10);
      transition:.22s ease;
    }
    .scene-card:hover{
      background:rgba(255,255,255,.08);
      transform:translateY(-5px);
    }
    .scene-card .num{
      width:38px;
      height:38px;
      display:grid;
      place-items:center;
      border-radius:13px;
      background:rgba(255,77,125,.14);
      color:#ffd3de;
      font-weight:900;
      margin-bottom:18px;
    }
    .scene-card h3{font-size:20px;margin-bottom:10px}
    .scene-card p{color:var(--muted);font-size:14px}
    .process-wrap{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:start;
    }
    .process-note{
      position:sticky;
      top:104px;
      padding:30px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(180deg,rgba(255,77,125,.12),rgba(139,92,246,.10)),
        url('/assets/images/coverpic/cover-5.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.13);
      min-height:420px;
      overflow:hidden;
    }
    .process-note::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(10,12,20,.60),rgba(10,12,20,.88));
    }
    .process-note > *{position:relative;z-index:1}
    .process-note h2{font-size:36px;line-height:1.15;margin-top:14px}
    .process-note p{margin-top:14px;color:#d8dfed}
    .step-list{
      display:grid;
      gap:16px;
    }
    .step{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:18px;
      padding:22px;
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.10);
    }
    .step-index{
      width:54px;
      height:54px;
      display:grid;
      place-items:center;
      border-radius:18px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      font-weight:900;
      box-shadow:0 14px 28px rgba(139,92,246,.22);
    }
    .step h3{font-size:20px;margin-bottom:6px}
    .step p{color:var(--muted);font-size:14px}
    .faq{
      background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.045));
      border-top:1px solid var(--line);
    }
    .faq-list{
      display:grid;
      gap:14px;
      max-width:920px;
      margin:0 auto;
    }
    .faq-item{
      border-radius:20px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:20px 22px;
      background:transparent;
      color:#fff;
      text-align:left;
      font-weight:900;
    }
    .faq-q span:last-child{
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:rgba(255,255,255,.08);
      transition:.22s ease;
      flex:0 0 auto;
    }
    .faq-a{
      display:none;
      padding:0 22px 22px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg);background:rgba(255,77,125,.18)}
    .cta{
      padding:82px 0 94px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      padding:48px;
      background:
        radial-gradient(circle at 20% 20%,rgba(255,255,255,.20),transparent 24%),
        linear-gradient(135deg,rgba(255,77,125,.92),rgba(139,92,246,.90));
      box-shadow:0 28px 80px rgba(139,92,246,.25);
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:32px;
    }
    .cta-box::after{
      content:"";
      position:absolute;
      width:240px;
      height:240px;
      right:-70px;
      bottom:-100px;
      border-radius:50%;
      background:rgba(255,255,255,.16);
    }
    .cta-box h2{
      position:relative;
      z-index:1;
      font-size:clamp(28px,4vw,46px);
      line-height:1.15;
      letter-spacing:-.03em;
    }
    .cta-box p{
      position:relative;
      z-index:1;
      margin-top:12px;
      color:rgba(255,255,255,.86);
      max-width:720px;
    }
    .cta-box .btn{
      position:relative;
      z-index:1;
      background:#fff;
      color:#171827;
      box-shadow:0 18px 34px rgba(0,0,0,.18);
    }
    .cta-box .btn:hover{transform:translateY(-3px)}
    .site-footer{
      padding:54px 0 28px;
      background:#080a10;
      border-top:1px solid var(--line);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:32px;
      align-items:start;
    }
    .footer-brand{
      font-size:22px;
      font-weight:950;
      letter-spacing:.02em;
      margin-bottom:12px;
    }
    .footer-text{
      color:var(--muted);
      max-width:650px;
      font-size:14px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      color:#c8cfdd;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
      font-size:14px;
      transition:.22s ease;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:#fff;
      background:rgba(255,77,125,.14);
      border-color:rgba(255,77,125,.28);
    }
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:var(--muted-2);
      font-size:13px;
      flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .nav{gap:14px}
      .nav-links a{padding:0 12px}
      .nav-action{display:none}
      .hero-inner,
      .showcase-grid,
      .process-wrap{
        grid-template-columns:1fr;
      }
      .quality-grid{grid-template-columns:repeat(2,1fr)}
      .process-note{position:relative;top:auto;min-height:330px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav{height:68px}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        top:76px;
        left:14px;
        right:14px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:12px;
        background:rgba(12,15,24,.96);
        box-shadow:var(--shadow);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{justify-content:center;min-height:46px}
      .hero-category{padding:56px 0 44px;min-height:auto}
      .hero-inner{gap:28px}
      .hero-copy p{font-size:16px}
      .section{padding:62px 0}
      .section-head{display:block}
      .mini-note{margin-top:18px;max-width:none}
      .scene-grid{grid-template-columns:1fr}
      .side-card{grid-template-columns:120px 1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
      .cta-box{grid-template-columns:1fr;padding:34px 24px}
    }
    @media (max-width:520px){
      .logo{font-size:18px}
      .logo-mark{width:34px;height:34px;border-radius:12px}
      .hero-actions{align-items:stretch}
      .btn{width:100%}
      .quality-grid{grid-template-columns:1fr}
      .featured-media,
      .featured-media img{min-height:270px;height:270px}
      .large-card img{height:250px}
      .side-card{grid-template-columns:1fr}
      .side-card img{height:190px}
      .step{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }