/* roulang page: index */
:root{
      --bg:#0b0d12;
      --bg-soft:#111522;
      --panel:#121826;
      --panel-2:#171f31;
      --card:#0f1523;
      --text:#f5f7fb;
      --muted:#aab4c8;
      --faint:#6f7a91;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(255,255,255,.14);
      --primary:#ff2f6d;
      --primary-2:#ff6a3d;
      --accent:#24d5c3;
      --gold:#f8c95b;
      --shadow:0 20px 60px rgba(0,0,0,.32);
      --shadow-soft:0 10px 30px rgba(0,0,0,.22);
      --radius:22px;
      --radius-sm:16px;
      --radius-xs:12px;
      --container:1180px;
      --gap:24px;
      --space:clamp(18px,2vw,28px);
      --space-lg:clamp(26px,4vw,48px);
      --transition:.22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,47,109,.16), transparent 28%),
        radial-gradient(circle at right top, rgba(36,213,195,.12), transparent 30%),
        linear-gradient(180deg, #07090f 0%, #0b0d12 42%, #090b10 100%);
      line-height:1.7;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    ::selection{background:rgba(255,47,109,.28);color:#fff}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin-inline:auto;
    }
    .topbar{
      position:relative;
      z-index:20;
      background:linear-gradient(90deg, rgba(255,47,109,.16), rgba(36,213,195,.10));
      border-bottom:1px solid var(--line);
      color:#f5dce4;
      font-size:14px;
    }
    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:10px 0;
    }
    .topbar strong{color:#fff}
    .topbar .hint{color:#ffd9e5}
    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter:blur(18px);
      background:rgba(8,11,18,.72);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:76px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      color:#fff;
      white-space:nowrap;
    }
    .brand-mark{
      display:grid;
      place-items:center;
      width:40px;
      height:40px;
      border-radius:14px;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 12px 24px rgba(255,47,109,.26);
      color:#fff;
      font-size:15px;
      flex:0 0 auto;
    }
    .brand-name{font-size:18px}
    .nav-toggle{
      display:none;
      width:46px;
      height:46px;
      border:1px solid var(--line-2);
      background:rgba(255,255,255,.04);
      color:#fff;
      border-radius:14px;
      cursor:pointer;
      align-items:center;
      justify-content:center;
      transition:all var(--transition);
    }
    .nav-toggle:hover{border-color:rgba(255,255,255,.26);transform:translateY(-1px)}
    .nav-toggle:focus-visible,
    .btn:focus-visible,
    .card-link:focus-visible,
    .footer-link:focus-visible,
    summary:focus-visible,
    input:focus-visible{
      outline:3px solid rgba(255,47,109,.35);
      outline-offset:3px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .nav-links a{
      padding:11px 16px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      transition:all var(--transition);
      font-weight:600;
    }
    .nav-links a:hover,
    .nav-links a.active{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:var(--line-2);
      transform:translateY(-1px);
    }
    .hero{
      position:relative;
      overflow:hidden;
      padding:40px 0 10px;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(7,9,15,.48) 0%, rgba(7,9,15,.82) 72%, rgba(7,9,15,1) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.95;
      filter:saturate(1.02);
      z-index:-2;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 0%, rgba(8,10,16,.16) 100%);
      z-index:-1;
    }
    .hero-inner{
      padding:50px 0 54px;
      text-align:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      margin-bottom:18px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
      color:#ffe3ea;
      font-size:14px;
      letter-spacing:.02em;
      backdrop-filter:blur(10px);
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(36,213,195,.14);
    }
    h1{
      margin:0;
      font-size:clamp(36px,6vw,64px);
      line-height:1.08;
      letter-spacing:-.03em;
    }
    .hero-lead{
      width:min(760px, 100%);
      margin:18px auto 0;
      color:#d8deea;
      font-size:clamp(16px,1.7vw,19px);
    }
    .hero-search{
      display:flex;
      justify-content:center;
      gap:12px;
      margin:28px auto 0;
      width:min(760px, 100%);
      flex-wrap:wrap;
    }
    .search-field{
      flex:1 1 320px;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 16px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:16px;
      background:rgba(255,255,255,.07);
      box-shadow:var(--shadow-soft);
    }
    .search-field span{
      color:var(--muted);
      font-size:14px;
      white-space:nowrap;
    }
    .search-field input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:#fff;
      min-width:0;
    }
    .search-field input::placeholder{color:#8d97ad}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:0 18px;
      border-radius:16px;
      border:1px solid transparent;
      cursor:pointer;
      transition:all var(--transition);
      font-weight:700;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      color:#fff;
      box-shadow:0 14px 28px rgba(255,47,109,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(255,47,109,.28)}
    .btn-ghost{
      background:rgba(255,255,255,.06);
      color:#fff;
      border-color:rgba(255,255,255,.14);
    }
    .btn-ghost:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.1)}
    .hero-actions{
      display:flex;
      justify-content:center;
      gap:12px;
      flex-wrap:wrap;
      margin-top:18px;
    }
    .hero-chips{
      display:flex;
      justify-content:center;
      gap:10px;
      flex-wrap:wrap;
      margin-top:24px;
    }
    .chip{
      padding:9px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      color:#eff3ff;
      border:1px solid rgba(255,255,255,.08);
      font-size:14px;
      backdrop-filter:blur(10px);
    }
    .section{
      padding:var(--space-lg) 0;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:20px;
      flex-wrap:wrap;
    }
    .section-title{
      margin:0;
      font-size:clamp(24px,3vw,34px);
      line-height:1.15;
      letter-spacing:-.02em;
    }
    .section-desc{
      margin:0;
      max-width:720px;
      color:var(--muted);
      font-size:15px;
    }
    .promise-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:18px;
    }
    .promise-card,
    .category-card,
    .gallery-card,
    .step-card,
    .faq-item,
    .update-panel{
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .promise-card{
      padding:22px;
      min-height:160px;
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .promise-card:hover,
    .category-card:hover,
    .gallery-card:hover,
    .step-card:hover{
      transform:translateY(-4px);
      border-color:rgba(255,255,255,.18);
      box-shadow:var(--shadow);
    }
    .promise-icon{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      margin-bottom:14px;
      background:rgba(255,47,109,.14);
      color:#ffd4df;
      border:1px solid rgba(255,47,109,.16);
      font-weight:800;
    }
    .promise-card h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .promise-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .category-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:18px;
    }
    .category-card{
      overflow:hidden;
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .card-media{
      position:relative;
      aspect-ratio:16/11;
      overflow:hidden;
      background:var(--panel);
    }
    .card-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease, filter .45s ease;
    }
    .category-card:hover .card-media img,
    .gallery-card:hover img{transform:scale(1.04)}
    .card-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 0%, rgba(6,8,12,.08) 50%, rgba(6,8,12,.66) 100%);
    }
    .card-badge{
      position:absolute;
      left:14px;
      top:14px;
      z-index:2;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(8,11,18,.74);
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
      font-size:12px;
      backdrop-filter:blur(10px);
    }
    .card-body{
      padding:20px;
      display:flex;
      flex-direction:column;
      gap:12px;
      flex:1;
    }
    .card-topline{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      flex-wrap:wrap;
    }
    .card-topline .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#ffcede;
      font-size:13px;
      font-weight:700;
    }
    .card-topline .tag::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:999px;
      background:var(--gold);
      box-shadow:0 0 0 5px rgba(248,201,91,.12);
    }
    .card-title{
      margin:0;
      font-size:20px;
      line-height:1.2;
    }
    .card-text{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .card-features{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
    }
    .mini-badge{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      color:#dbe3f5;
      font-size:12px;
    }
    .card-link{
      margin-top:auto;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      width:100%;
      min-height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      border:1px solid var(--line);
      color:#fff;
      font-weight:700;
      transition:all var(--transition);
    }
    .card-link:hover{
      background:rgba(255,47,109,.14);
      border-color:rgba(255,47,109,.24);
      transform:translateY(-1px);
    }
    .update-layout{
      display:grid;
      grid-template-columns:1.35fr .85fr;
      gap:18px;
      align-items:start;
    }
    .update-panel{
      padding:22px;
    }
    .update-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .update-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:14px;
      align-items:center;
      padding:14px 0;
      border-bottom:1px solid var(--line);
    }
    .update-item:last-child{border-bottom:0;padding-bottom:0}
    .update-thumb{
      width:96px;
      height:64px;
      border-radius:14px;
      overflow:hidden;
      background:var(--panel-2);
      flex:0 0 auto;
      border:1px solid rgba(255,255,255,.08);
    }
    .update-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .update-copy h3{
      margin:0 0 6px;
      font-size:18px;
      line-height:1.3;
    }
    .update-copy p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .update-meta{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:8px;
      color:var(--faint);
      font-size:12px;
      white-space:nowrap;
    }
    .update-meta span{
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid var(--line);
      color:#d9e2f8;
    }
    .update-link{
      color:#fff;
      font-weight:700;
      font-size:13px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,47,109,.12);
      border:1px solid rgba(255,47,109,.18);
      transition:all var(--transition);
    }
    .update-link:hover{transform:translateY(-1px);background:rgba(255,47,109,.18)}
    .empty-state{
      padding:18px 16px;
      border-radius:16px;
      color:#eef2ff;
      background:rgba(255,255,255,.05);
      border:1px dashed rgba(255,255,255,.14);
    }
    .update-side{
      position:sticky;
      top:96px;
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:22px;
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .side-card h3{
      margin:0 0 10px;
      font-size:19px;
    }
    .side-card p{margin:0;color:var(--muted);font-size:14px}
    .side-points{
      list-style:none;
      padding:0;
      margin:16px 0 0;
      display:grid;
      gap:10px;
    }
    .side-points li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#e7ecf8;
      font-size:14px;
    }
    .side-points li::before{
      content:"";
      width:9px;
      height:9px;
      margin-top:8px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(36,213,195,.12);
      flex:0 0 auto;
    }
    .gallery-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:18px;
    }
    .gallery-card{
      overflow:hidden;
    }
    .gallery-card img{
      width:100%;
      height:240px;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .gallery-body{
      padding:18px 18px 20px;
    }
    .gallery-body h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .gallery-body p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .steps-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:18px;
    }
    .step-card{
      padding:22px;
    }
    .step-num{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:linear-gradient(135deg, rgba(255,47,109,.22), rgba(255,106,61,.22));
      border:1px solid rgba(255,255,255,.08);
      margin-bottom:14px;
      font-weight:800;
    }
    .step-card h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .step-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .faq-grid{
      display:grid;
      gap:12px;
    }
    .faq-item{
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      font-weight:700;
      color:#fff;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary span{
      width:28px;
      height:28px;
      border-radius:999px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      color:#fff;
      transition:transform var(--transition);
    }
    .faq-item[open] summary span{transform:rotate(45deg)}
    .faq-content{
      padding:0 20px 20px;
      color:var(--muted);
      font-size:14px;
    }
    .cta-banner{
      position:relative;
      overflow:hidden;
      border-radius:calc(var(--radius) + 6px);
      border:1px solid rgba(255,255,255,.12);
      background:
        linear-gradient(135deg, rgba(7,9,15,.82), rgba(7,9,15,.52)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .cta-inner{
      padding:34px;
      display:grid;
      gap:14px;
      justify-items:start;
    }
    .cta-inner h2{
      margin:0;
      font-size:clamp(24px,3vw,36px);
      line-height:1.15;
    }
    .cta-inner p{
      margin:0;
      max-width:760px;
      color:#dbe2f3;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:6px;
    }
    .footer{
      padding:26px 0 34px;
      border-top:1px solid var(--line);
      margin-top:10px;
      background:rgba(6,8,12,.58);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr 1fr;
      gap:24px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      max-width:420px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      transition:color var(--transition), transform var(--transition);
      width:max-content;
    }
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .footer-note{
      color:var(--faint);
      font-size:13px;
      line-height:1.7;
    }
    .footer-bottom{
      margin-top:24px;
      padding-top:18px;
      border-top:1px solid var(--line);
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color:var(--faint);
      font-size:13px;
    }
    .divider{
      height:1px;
      width:100%;
      background:linear-gradient(90deg, transparent, var(--line-2), transparent);
      margin:0;
    }
    .section-soft{
      background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
      border-top:1px solid rgba(255,255,255,.04);
      border-bottom:1px solid rgba(255,255,255,.04);
    }
    @media (max-width: 1120px){
      .category-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
      .update-layout{grid-template-columns:1fr}
      .update-side{position:static}
      .gallery-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 860px){
      .nav-toggle{display:inline-flex}
      .nav-links{
        position:absolute;
        left:16px;
        right:16px;
        top:100%;
        display:grid;
        gap:8px;
        padding:14px;
        margin-top:8px;
        border-radius:18px;
        background:rgba(12,15,23,.96);
        border:1px solid var(--line);
        box-shadow:var(--shadow);
        transform-origin:top;
        transform:scale(.98);
        opacity:0;
        pointer-events:none;
        transition:opacity var(--transition), transform var(--transition);
      }
      .nav-links.is-open{
        opacity:1;
        pointer-events:auto;
        transform:scale(1);
      }
      .nav-links a{
        width:100%;
        padding:13px 14px;
        border-radius:14px;
      }
      .promise-grid,
      .steps-grid,
      .category-grid,
      .gallery-grid,
      .footer-grid{grid-template-columns:1fr}
      .hero-inner{padding:42px 0 44px}
      .cta-inner{padding:26px}
      .update-item{
        grid-template-columns:1fr;
        align-items:start;
      }
      .update-thumb{width:100%;height:auto;aspect-ratio:16/9}
      .update-meta{align-items:flex-start;flex-direction:row;flex-wrap:wrap}
    }
    @media (max-width: 520px){
      .topbar-inner{flex-direction:column;align-items:flex-start}
      .nav-wrap{min-height:70px}
      .brand-name{font-size:16px}
      .hero-search{flex-direction:column}
      .search-field{width:100%}
      .btn{width:100%}
      .section{padding:28px 0}
      .cta-actions .btn{width:100%}
      .section-head{margin-bottom:16px}
      .gallery-card img{height:200px}
      .faq-item summary{padding:16px}
      .faq-content{padding:0 16px 16px}
    }

/* roulang page: category1 */
:root{
      --bg: #07111f;
      --bg-2: #0b1628;
      --panel: rgba(10, 18, 34, .76);
      --panel-strong: rgba(15, 23, 42, .92);
      --card: rgba(15, 23, 42, .82);
      --card-2: rgba(20, 28, 49, .92);
      --line: rgba(148, 163, 184, .18);
      --line-strong: rgba(226, 232, 240, .12);
      --text: #e5eefb;
      --muted: #9fb0c9;
      --soft: #7f91ad;
      --primary: #f43f5e;
      --primary-2: #fb7185;
      --accent: #f59e0b;
      --accent-2: #fbbf24;
      --success: #22c55e;
      --shadow: 0 22px 60px rgba(2, 6, 23, .42);
      --shadow-soft: 0 14px 36px rgba(2, 6, 23, .24);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --gap: 24px;
      --container: 1180px;
      --focus: 0 0 0 4px rgba(244, 63, 94, .24);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(244, 63, 94, .12), transparent 30%),
        radial-gradient(circle at top right, rgba(245, 158, 11, .12), transparent 26%),
        linear-gradient(180deg, #05101d 0%, #07111f 34%, #08131f 100%);
      line-height: 1.7;
      min-height: 100vh;
      overflow-x: hidden;
    }

    body::before{
      content:"";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(180deg, rgba(3, 7, 18, .18), rgba(3, 7, 18, .54)),
        url('/assets/images/backpic/back-3.webp') center top / cover no-repeat;
      opacity: .10;
      mix-blend-mode: screen;
      z-index: -1;
    }

    img {
      display: block;
      max-width: 100%;
      border: 0;
    }

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

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      background: none;
      color: inherit;
      cursor: pointer;
    }

    :focus-visible {
      outline: none;
      box-shadow: var(--focus);
      border-color: rgba(244, 63, 94, .55);
    }

    .container {
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      background: rgba(5, 11, 22, .72);
      border-bottom: 1px solid rgba(148, 163, 184, .14);
    }

    .nav-wrap {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: .02em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 12px 28px rgba(244, 63, 94, .28);
      flex: 0 0 auto;
    }

    .brand-name {
      font-size: 18px;
      color: #f8fbff;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-links a {
      position: relative;
      padding: 10px 14px;
      border-radius: 999px;
      color: var(--muted);
      transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
    }

    .nav-links a:hover {
      color: #fff;
      background: rgba(148, 163, 184, .08);
      transform: translateY(-1px);
    }

    .nav-links a.active,
    .nav-links a[aria-current="page"] {
      color: #fff;
      background: linear-gradient(135deg, rgba(244, 63, 94, .22), rgba(245, 158, 11, .18));
      box-shadow: inset 0 0 0 1px rgba(244, 63, 94, .25);
    }

    .nav-toggle {
      display: none;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      color: #fff;
      background: rgba(148, 163, 184, .08);
      border: 1px solid rgba(148, 163, 184, .14);
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 72px 0 34px;
    }

    .hero-panel {
      position: relative;
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: calc(var(--radius-xl) + 4px);
      background:
        linear-gradient(180deg, rgba(9, 16, 32, .64), rgba(9, 16, 32, .88)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 20% 20%, rgba(244, 63, 94, .18), transparent 28%),
        radial-gradient(circle at 82% 12%, rgba(245, 158, 11, .14), transparent 24%),
        linear-gradient(135deg, rgba(15, 23, 42, .12), rgba(15, 23, 42, .5));
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 28px;
      padding: 34px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(15, 23, 42, .66);
      border: 1px solid rgba(255, 255, 255, .1);
      color: #fde68a;
      font-weight: 700;
      letter-spacing: .02em;
      font-size: 13px;
    }

    .hero h1 {
      margin: 16px 0 14px;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.08;
      letter-spacing: -.03em;
    }

    .hero p {
      margin: 0;
      max-width: 64ch;
      color: rgba(229, 238, 251, .86);
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 700;
      letter-spacing: .01em;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn:hover {
      transform: translateY(-1px);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), #fb7185 60%, #f59e0b 140%);
      box-shadow: 0 16px 28px rgba(244, 63, 94, .28);
    }

    .btn-primary:hover {
      box-shadow: 0 20px 34px rgba(244, 63, 94, .34);
    }

    .btn-ghost {
      color: #f8fbff;
      background: rgba(148, 163, 184, .08);
      border-color: rgba(148, 163, 184, .16);
    }

    .btn-ghost:hover {
      background: rgba(148, 163, 184, .12);
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 22px;
    }

    .meta-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      border-radius: 999px;
      background: rgba(15, 23, 42, .58);
      border: 1px solid rgba(148, 163, 184, .18);
      color: rgba(229, 238, 251, .92);
      font-size: 14px;
    }

    .search-panel {
      margin-top: 26px;
      padding: 16px;
      border-radius: var(--radius-lg);
      background: rgba(5, 11, 22, .46);
      border: 1px solid rgba(148, 163, 184, .16);
      box-shadow: var(--shadow-soft);
    }

    .search-panel label {
      display: block;
      margin-bottom: 10px;
      color: #f8fbff;
      font-weight: 700;
      font-size: 15px;
    }

    .search-bar {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
    }

    .search-bar input {
      width: 100%;
      min-width: 0;
      border-radius: 16px;
      border: 1px solid rgba(148, 163, 184, .16);
      background: rgba(15, 23, 42, .7);
      color: var(--text);
      padding: 0 16px;
      min-height: 52px;
    }

    .search-bar input::placeholder {
      color: rgba(159, 176, 201, .72);
    }

    .search-bar button {
      padding: 0 18px;
      min-height: 52px;
      border-radius: 16px;
      color: #fff;
      background: linear-gradient(135deg, rgba(245, 158, 11, .96), rgba(244, 63, 94, .96));
      box-shadow: 0 14px 28px rgba(245, 158, 11, .24);
      font-weight: 700;
    }

    .hero-visual {
      position: relative;
      display: grid;
      gap: 14px;
    }

    .visual-card {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, .08);
      background: var(--card);
      box-shadow: var(--shadow-soft);
    }

    .visual-card.main {
      min-height: 355px;
      background:
        linear-gradient(180deg, rgba(4, 8, 17, .1), rgba(4, 8, 17, .42)),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
      position: relative;
    }

    .visual-card.main .caption,
    .visual-card.small .caption {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(2, 6, 23, .68);
      border: 1px solid rgba(255, 255, 255, .1);
      backdrop-filter: blur(10px);
    }

    .visual-card.main .caption strong,
    .visual-card.small .caption strong {
      display: block;
      font-size: 16px;
      margin-bottom: 4px;
    }

    .visual-card.main .caption span,
    .visual-card.small .caption span {
      color: rgba(226, 232, 240, .82);
      font-size: 13px;
    }

    .visual-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .visual-card.small {
      min-height: 168px;
      position: relative;
      background-size: cover;
      background-position: center;
      overflow: hidden;
    }

    .small-1 { background-image: linear-gradient(180deg, rgba(4, 8, 17, .08), rgba(4, 8, 17, .48)), url('/assets/images/coverpic/cover-2.webp'); }
    .small-2 { background-image: linear-gradient(180deg, rgba(4, 8, 17, .08), rgba(4, 8, 17, .48)), url('/assets/images/coverpic/cover-3.webp'); }

    .section {
      padding: 26px 0 16px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 18px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(24px, 3vw, 36px);
      line-height: 1.15;
      letter-spacing: -.02em;
    }

    .section-head p {
      margin: 8px 0 0;
      color: var(--muted);
      max-width: 68ch;
    }

    .section-link {
      color: #ffd7df;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 0;
      white-space: nowrap;
    }

    .section-link:hover {
      color: #fff;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .feature-card,
    .topic-card,
    .info-card,
    .faq-item,
    .cta-panel {
      border-radius: var(--radius-lg);
      border: 1px solid rgba(148, 163, 184, .16);
      background: linear-gradient(180deg, rgba(15, 23, 42, .88), rgba(10, 18, 34, .94));
      box-shadow: var(--shadow-soft);
    }

    .feature-card {
      padding: 20px;
      min-height: 180px;
      display: flex;
      flex-direction: column;
      gap: 14px;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .feature-card:hover,
    .topic-card:hover,
    .info-card:hover {
      transform: translateY(-3px);
      border-color: rgba(244, 63, 94, .28);
      box-shadow: 0 18px 34px rgba(2, 6, 23, .34);
    }

    .icon-badge {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 20px;
      background: linear-gradient(135deg, rgba(244, 63, 94, .96), rgba(245, 158, 11, .96));
      box-shadow: 0 14px 26px rgba(244, 63, 94, .18);
    }

    .feature-card h3 {
      margin: 0;
      font-size: 18px;
    }

    .feature-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(148, 163, 184, .08);
      border: 1px solid rgba(148, 163, 184, .14);
      color: #d8e4f6;
      font-size: 12px;
    }

    .topic-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .topic-card {
      overflow: hidden;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .topic-card.active {
      border-color: rgba(244, 63, 94, .36);
      box-shadow: 0 18px 36px rgba(244, 63, 94, .14);
    }

    .topic-media {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #0c1220;
    }

    .topic-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }

    .topic-card:hover .topic-media img {
      transform: scale(1.04);
    }

    .topic-media::after {
      content:"";
      position:absolute;
      inset:0;
      background: linear-gradient(180deg, rgba(4, 8, 17, .06), rgba(4, 8, 17, .54));
    }

    .topic-body {
      padding: 18px;
    }

    .topic-top {
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 12px;
    }

    .topic-body h3 {
      margin: 0;
      font-size: 18px;
      line-height: 1.25;
    }

    .topic-body p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .topic-foot {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 16px;
      color: #dbe7f7;
      font-size: 13px;
    }

    .pill {
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(244, 63, 94, .12);
      border: 1px solid rgba(244, 63, 94, .18);
      color: #fecdd3;
      font-weight: 700;
      font-size: 12px;
      white-space: nowrap;
    }

    .split-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 16px;
      align-items: stretch;
    }

    .info-card {
      padding: 22px;
    }

    .timeline {
      display: grid;
      gap: 14px;
      margin-top: 12px;
    }

    .timeline-item {
      display: grid;
      grid-template-columns: 52px 1fr;
      gap: 14px;
      align-items: start;
      padding: 14px;
      border-radius: 18px;
      background: rgba(148, 163, 184, .06);
      border: 1px solid rgba(148, 163, 184, .12);
    }

    .timeline-num {
      width: 52px;
      height: 52px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      font-weight: 800;
      color: #fff;
      background: linear-gradient(135deg, rgba(245, 158, 11, .96), rgba(244, 63, 94, .96));
    }

    .timeline-item h3,
    .info-card h3 {
      margin: 0 0 6px;
      font-size: 18px;
    }

    .timeline-item p,
    .info-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
      margin-top: 16px;
    }

    .metric {
      padding: 18px;
      border-radius: 20px;
      background: linear-gradient(180deg, rgba(9, 16, 32, .9), rgba(15, 23, 42, .78));
      border: 1px solid rgba(148, 163, 184, .14);
    }

    .metric strong {
      display: block;
      font-size: 26px;
      line-height: 1.1;
      margin-bottom: 8px;
      color: #fff;
    }

    .metric span {
      color: var(--muted);
      font-size: 13px;
    }

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

    .faq-item {
      padding: 18px 20px;
    }

    .faq-item h3 {
      margin: 0;
      font-size: 17px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .faq-item h3::before {
      content: "Q";
      width: 28px;
      height: 28px;
      border-radius: 10px;
      display: inline-grid;
      place-items: center;
      color: #fff;
      font-size: 12px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      flex: 0 0 auto;
    }

    .faq-item p {
      margin: 10px 0 0;
      color: var(--muted);
    }

    .cta-panel {
      padding: 28px;
      background:
        linear-gradient(135deg, rgba(244, 63, 94, .14), rgba(245, 158, 11, .12)),
        linear-gradient(180deg, rgba(15, 23, 42, .94), rgba(10, 18, 34, .98));
    }

    .cta-panel .cta-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 20px;
      align-items: center;
    }

    .cta-panel h2 {
      margin: 0 0 10px;
      font-size: clamp(26px, 3.2vw, 40px);
      line-height: 1.12;
    }

    .cta-panel p {
      margin: 0;
      color: var(--muted);
      max-width: 60ch;
    }

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

    .footer {
      margin-top: 36px;
      padding: 28px 0 18px;
      border-top: 1px solid rgba(148, 163, 184, .14);
      background: linear-gradient(180deg, rgba(6, 11, 21, .38), rgba(5, 10, 18, .92));
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 18px;
      padding: 12px 0 18px;
    }

    .footer-brand p,
    .footer-note {
      margin: 0;
      color: var(--muted);
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-link {
      color: rgba(229, 238, 251, .88);
      width: fit-content;
      transition: color .2s ease, transform .2s ease;
    }

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

    .footer-note {
      padding: 16px 18px;
      border-radius: 20px;
      background: rgba(148, 163, 184, .06);
      border: 1px solid rgba(148, 163, 184, .12);
      line-height: 1.85;
    }

    .footer-bottom {
      padding-top: 16px;
      border-top: 1px solid rgba(148, 163, 184, .12);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: rgba(159, 176, 201, .86);
      font-size: 14px;
    }

    @media (max-width: 1080px) {
      .hero-grid,
      .split-grid,
      .cta-panel .cta-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

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

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

    @media (max-width: 860px) {
      .nav-toggle {
        display: inline-flex;
      }

      .nav-links {
        position: absolute;
        left: 16px;
        right: 16px;
        top: 76px;
        display: grid;
        gap: 8px;
        padding: 14px;
        border-radius: 22px;
        background: rgba(5, 11, 22, .96);
        border: 1px solid rgba(148, 163, 184, .14);
        box-shadow: var(--shadow);
        transform: translateY(-12px);
        opacity: 0;
        pointer-events: none;
        transition: opacity .2s ease, transform .2s ease;
      }

      body.nav-open .nav-links {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
      }

      .nav-links a {
        width: 100%;
        justify-content: flex-start;
      }

      .hero {
        padding-top: 24px;
      }

      .hero-grid {
        padding: 22px;
      }

      .search-bar {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }

      .section-head {
        align-items: start;
        flex-direction: column;
      }
    }

    @media (max-width: 640px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

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

      .hero h1 {
        font-size: clamp(30px, 9vw, 42px);
      }

      .hero p,
      .section-head p {
        font-size: 15px;
      }

      .feature-grid,
      .topic-grid,
      .metric-grid {
        grid-template-columns: 1fr;
      }

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

      .hero-grid,
      .cta-panel {
        padding: 18px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .timeline-item {
        grid-template-columns: 1fr;
      }

      .timeline-num {
        width: 44px;
        height: 44px;
        border-radius: 14px;
      }
    }

/* roulang page: article */
:root {
      --bg: #0b1020;
      --bg-2: #0f1730;
      --surface: rgba(17, 24, 50, 0.88);
      --surface-2: rgba(24, 34, 68, 0.92);
      --card: rgba(18, 27, 55, 0.96);
      --line: rgba(255, 255, 255, 0.1);
      --line-strong: rgba(255, 255, 255, 0.16);
      --text: #eef2ff;
      --muted: #a6b0d5;
      --muted-2: #7f8bb6;
      --accent: #ff4d6d;
      --accent-2: #8b5cf6;
      --accent-3: #00d4ff;
      --success: #22c55e;
      --warning: #f59e0b;
      --shadow: 0 24px 60px rgba(3, 8, 25, 0.45);
      --shadow-soft: 0 14px 32px rgba(3, 8, 25, 0.25);
      --radius: 24px;
      --radius-lg: 30px;
      --radius-md: 18px;
      --radius-sm: 14px;
      --container: 1180px;
      --header-h: 78px;
      --space-1: 8px;
      --space-2: 12px;
      --space-3: 16px;
      --space-4: 20px;
      --space-5: 24px;
      --space-6: 32px;
      --space-7: 40px;
      --space-8: 56px;
      --space-9: 72px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      background:
        radial-gradient(1000px 600px at 15% -10%, rgba(139, 92, 246, 0.22), transparent 55%),
        radial-gradient(900px 500px at 90% 10%, rgba(255, 77, 109, 0.18), transparent 50%),
        linear-gradient(180deg, #080d1b 0%, #0b1020 20%, #0b1020 100%);
      color: var(--text);
      line-height: 1.7;
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease, opacity .2s ease;
    }

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

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: none;
    }

    :focus-visible {
      outline: 3px solid rgba(0, 212, 255, 0.45);
      outline-offset: 3px;
      border-radius: 12px;
    }

    .container {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      background: rgba(8, 13, 27, 0.72);
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .nav-wrap {
      min-height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--text);
      font-weight: 800;
      letter-spacing: .02em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow: 0 12px 28px rgba(255, 77, 109, 0.28);
      color: #fff;
      font-size: 18px;
      flex: 0 0 auto;
    }

    .brand-name {
      font-size: 18px;
      line-height: 1.1;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      border: 1px solid transparent;
      border-radius: 999px;
      color: var(--muted);
      background: transparent;
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a:focus-visible {
      color: #fff;
      background: rgba(255,255,255,0.06);
      border-color: rgba(255,255,255,0.08);
      transform: translateY(-1px);
    }

    .nav-links a.active,
    .nav-links a[aria-current="page"] {
      color: #fff;
      background: linear-gradient(135deg, rgba(255,77,109,.16), rgba(139,92,246,.18));
      border-color: rgba(255,255,255,0.12);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      align-items: center;
      justify-content: center;
      color: #fff;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.08);
    }

    .nav-toggle:hover {
      background: rgba(255,255,255,0.1);
      transform: translateY(-1px);
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 42px 0 30px;
      background:
        linear-gradient(180deg, rgba(7, 10, 20, 0.28), rgba(11,16,32,0.82)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(11,16,32,0.76), rgba(11,16,32,0.32));
      pointer-events: none;
    }

    .hero .container {
      position: relative;
      z-index: 1;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      color: rgba(255,255,255,0.72);
      font-size: 14px;
      margin-bottom: 16px;
    }

    .breadcrumb a {
      color: rgba(255,255,255,0.92);
    }

    .breadcrumb a:hover {
      color: var(--accent-3);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.6fr) minmax(320px, .9fr);
      gap: 24px;
      align-items: stretch;
    }

    .hero-panel {
      padding: 32px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255,255,255,0.09);
      background: linear-gradient(180deg, rgba(16, 24, 49, 0.86), rgba(16, 24, 49, 0.64));
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      inset: auto -20% -45% auto;
      width: 280px;
      height: 280px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,77,109,.16), transparent 70%);
      pointer-events: none;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.08);
      color: #d9def7;
      font-size: 13px;
      letter-spacing: .04em;
      text-transform: none;
      margin-bottom: 18px;
    }

    .hero h1 {
      margin: 0;
      font-size: clamp(30px, 4vw, 54px);
      line-height: 1.12;
      letter-spacing: -0.02em;
      max-width: 12ch;
    }

    .hero-desc {
      margin: 18px 0 0;
      color: var(--muted);
      font-size: 16px;
      max-width: 62ch;
    }

    .hero-actions {
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 700;
      letter-spacing: .01em;
      border: 1px solid transparent;
      box-shadow: var(--shadow-soft);
    }

    .button-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--accent), #ff7a59 48%, var(--accent-2));
    }

    .button-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(255,77,109,.24);
    }

    .button-ghost {
      color: #fff;
      background: rgba(255,255,255,0.06);
      border-color: rgba(255,255,255,0.09);
    }

    .button-ghost:hover {
      background: rgba(255,255,255,0.1);
      transform: translateY(-1px);
    }

    .meta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      color: #eef2ff;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.08);
      font-size: 13px;
    }

    .hero-side {
      display: grid;
      gap: 16px;
    }

    .hero-card {
      padding: 18px;
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(22,31,63,.96), rgba(18,26,53,.96));
      border: 1px solid rgba(255,255,255,0.08);
      box-shadow: var(--shadow);
    }

    .media-frame {
      position: relative;
      overflow: hidden;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,0.08);
      background: #0c1226;
      isolation: isolate;
    }

    .media-frame img {
      width: 100%;
      aspect-ratio: 16 / 10;
      object-fit: cover;
      transition: transform .35s ease, filter .35s ease;
      filter: saturate(1.08) contrast(1.02);
    }

    .media-frame:hover img {
      transform: scale(1.04);
    }

    .media-badge {
      position: absolute;
      left: 14px;
      top: 14px;
      z-index: 1;
      padding: 7px 10px;
      border-radius: 999px;
      font-size: 12px;
      color: #fff;
      background: rgba(11,16,32,.7);
      border: 1px solid rgba(255,255,255,0.12);
      backdrop-filter: blur(8px);
    }

    .hero-mini {
      display: grid;
      gap: 12px;
      margin-top: 14px;
    }

    .mini-row {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .mini-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      margin-top: 8px;
      background: linear-gradient(135deg, var(--accent), var(--accent-3));
      box-shadow: 0 0 0 4px rgba(255,255,255,0.04);
      flex: 0 0 auto;
    }

    .section {
      padding: 28px 0;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.65fr) minmax(290px, .85fr);
      gap: 24px;
      align-items: start;
    }

    .article-card,
    .aside-card,
    .info-card,
    .faq-card,
    .cta-card {
      background: linear-gradient(180deg, rgba(22, 31, 63, 0.96), rgba(16, 24, 49, 0.96));
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
    }

    .article-card {
      padding: 28px;
    }

    .article-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 18px;
      flex-wrap: wrap;
    }

    .article-head h2 {
      margin: 0;
      font-size: 22px;
      line-height: 1.25;
    }

    .article-kicker {
      color: var(--muted);
      font-size: 14px;
    }

    .cover-banner {
      margin: 18px 0 22px;
      overflow: hidden;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,0.08);
      position: relative;
      background: #0c1226;
    }

    .cover-banner img {
      width: 100%;
      aspect-ratio: 16 / 8.2;
      object-fit: cover;
    }

    .cover-banner .media-badge {
      top: 16px;
      left: 16px;
    }

    .prose {
      color: #d8def8;
      font-size: 16px;
    }

    .prose > :first-child { margin-top: 0; }
    .prose > :last-child { margin-bottom: 0; }

    .prose h2,
    .prose h3,
    .prose h4 {
      margin: 30px 0 14px;
      line-height: 1.3;
      color: #fff;
    }

    .prose h2 { font-size: 24px; }
    .prose h3 { font-size: 20px; }
    .prose p { margin: 0 0 16px; color: #d6dcf6; }
    .prose ul,
    .prose ol {
      margin: 0 0 18px;
      padding-left: 22px;
      color: #d6dcf6;
    }
    .prose li { margin: 8px 0; }
    .prose blockquote {
      margin: 22px 0;
      padding: 18px 20px;
      border-left: 4px solid var(--accent);
      border-radius: 0 16px 16px 0;
      background: rgba(255,255,255,0.04);
      color: #ecf1ff;
    }
    .prose a {
      color: #8ee4ff;
      text-decoration: underline;
      text-underline-offset: 3px;
    }
    .prose a:hover { color: #b3f0ff; }

    .article-footer {
      margin-top: 22px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      padding-top: 18px;
      border-top: 1px solid rgba(255,255,255,0.08);
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.08);
      color: #e8edff;
      font-size: 13px;
    }

    .aside-card {
      padding: 22px;
      position: sticky;
      top: calc(var(--header-h) + 20px);
    }

    .aside-card + .aside-card {
      margin-top: 18px;
    }

    .aside-title {
      margin: 0 0 12px;
      font-size: 18px;
      line-height: 1.25;
    }

    .aside-text {
      margin: 0 0 16px;
      color: var(--muted);
      font-size: 14px;
    }

    .quick-list {
      display: grid;
      gap: 12px;
    }

    .quick-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px 15px;
      border-radius: 18px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.08);
    }

    .quick-link:hover {
      transform: translateY(-2px);
      border-color: rgba(255,255,255,0.14);
      background: rgba(255,255,255,0.08);
    }

    .quick-link span {
      color: var(--muted);
      font-size: 13px;
    }

    .quick-link strong {
      display: block;
      color: #fff;
      font-size: 15px;
      margin-bottom: 4px;
    }

    .link-arrow {
      color: var(--accent-3);
      flex: 0 0 auto;
      font-size: 18px;
    }

    .section-title {
      margin: 0 0 18px;
      font-size: 28px;
      line-height: 1.22;
      letter-spacing: -0.02em;
    }

    .section-lead {
      margin: -6px 0 20px;
      color: var(--muted);
      max-width: 72ch;
    }

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

    .info-card {
      overflow: hidden;
    }

    .info-card .media-frame {
      border-radius: 22px 22px 0 0;
      border: 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .info-body {
      padding: 18px 18px 20px;
    }

    .info-body h3 {
      margin: 0 0 10px;
      font-size: 18px;
      line-height: 1.25;
    }

    .info-body p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .info-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }

    .stat-strip {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 18px;
    }

    .stat-box {
      padding: 16px;
      border-radius: 18px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.07);
    }

    .stat-box strong {
      display: block;
      font-size: 20px;
      line-height: 1.1;
      margin-bottom: 6px;
      color: #fff;
    }

    .stat-box span {
      color: var(--muted);
      font-size: 13px;
    }

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

    .faq-card {
      padding: 20px 22px;
    }

    .faq-card summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-weight: 700;
      color: #fff;
    }

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

    .faq-card p {
      margin: 12px 0 0;
      color: var(--muted);
    }

    .faq-icon {
      flex: 0 0 auto;
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      color: var(--accent-3);
    }

    .cta-card {
      padding: 26px;
      overflow: hidden;
      position: relative;
    }

    .cta-card::before {
      content: "";
      position: absolute;
      inset: auto -120px -160px auto;
      width: 340px;
      height: 340px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(139,92,246,.22), transparent 68%);
      pointer-events: none;
    }

    .cta-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr);
      gap: 18px;
      align-items: center;
    }

    .cta-card h2 {
      margin: 0 0 10px;
      font-size: 28px;
      line-height: 1.2;
    }

    .cta-card p {
      margin: 0;
      color: var(--muted);
    }

    .form-row {
      display: flex;
      gap: 10px;
      margin-top: 16px;
      flex-wrap: wrap;
    }

    .field {
      flex: 1 1 260px;
      min-height: 52px;
      padding: 0 16px;
      border-radius: 16px;
      border: 1px solid rgba(255,255,255,0.10);
      color: #fff;
      background: rgba(255,255,255,0.06);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
    }

    .field::placeholder {
      color: #95a0c6;
    }

    .field:focus {
      border-color: rgba(0, 212, 255, 0.46);
      background: rgba(255,255,255,0.08);
      outline: none;
    }

    .footer {
      margin-top: 32px;
      padding: 44px 0 24px;
      background: linear-gradient(180deg, rgba(10,15,31,0.08), rgba(7,10,20,0.72));
      border-top: 1px solid rgba(255,255,255,0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr 1fr;
      gap: 20px;
      align-items: start;
    }

    .footer-brand p,
    .footer-note {
      color: var(--muted);
      font-size: 14px;
      margin: 14px 0 0;
    }

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

    .footer-link {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 14px;
      border-radius: 999px;
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.08);
      color: #dce3ff;
      font-size: 14px;
    }

    .footer-link:hover {
      transform: translateY(-1px);
      border-color: rgba(255,255,255,0.14);
      background: rgba(255,255,255,0.08);
      color: #fff;
    }

    .footer-bottom {
      margin-top: 24px;
      padding-top: 18px;
      border-top: 1px solid rgba(255,255,255,0.08);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      color: var(--muted-2);
      font-size: 13px;
      flex-wrap: wrap;
    }

    .content-not-found {
      text-align: center;
      padding: 48px 18px;
    }

    .content-not-found h2 {
      margin: 0 0 10px;
      font-size: 28px;
      line-height: 1.2;
    }

    .content-not-found p {
      margin: 0 0 18px;
      color: var(--muted);
    }

    .divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
      margin: 22px 0;
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .article-layout,
      .cta-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .aside-card {
        position: static;
      }

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

    @media (max-width: 768px) {
      .nav-toggle {
        display: inline-flex;
      }

      .nav-links {
        position: absolute;
        left: 16px;
        right: 16px;
        top: calc(var(--header-h) - 2px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 14px;
        border-radius: 20px;
        background: rgba(8, 13, 27, 0.96);
        border: 1px solid rgba(255,255,255,0.08);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        justify-content: flex-start;
        padding: 0 16px;
      }

      .hero {
        padding-top: 30px;
      }

      .hero-panel,
      .article-card,
      .aside-card,
      .cta-card {
        padding: 20px;
      }

      .section-title {
        font-size: 24px;
      }

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

      .stat-strip {
        grid-template-columns: 1fr;
      }

      .hero h1 {
        max-width: none;
      }

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

    @media (max-width: 520px) {
      .container {
        width: min(var(--container), calc(100% - 24px));
      }

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

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 12px;
      }

      .hero-panel,
      .article-card,
      .aside-card,
      .cta-card,
      .faq-card {
        border-radius: 20px;
      }

      .hero h1 {
        font-size: 28px;
      }

      .hero-desc,
      .prose,
      .section-lead {
        font-size: 15px;
      }

      .button {
        width: 100%;
      }

      .form-row {
        gap: 12px;
      }

      .field {
        flex-basis: 100%;
        width: 100%;
      }

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

/* roulang page: category2 */
:root{
      --bg:#070b14;
      --bg-soft:#0d1322;
      --panel:#111a2d;
      --panel-2:#162138;
      --card:#10192b;
      --text:#eef3ff;
      --muted:#9dacbf;
      --line:rgba(255,255,255,.09);
      --line-strong:rgba(255,255,255,.16);
      --primary:#ff4d6d;
      --primary-2:#ff7a59;
      --accent:#8b5cf6;
      --success:#24d18f;
      --warning:#ffce5c;
      --shadow:0 18px 48px rgba(0,0,0,.34);
      --shadow-soft:0 10px 28px rgba(0,0,0,.22);
      --radius:22px;
      --radius-sm:14px;
      --radius-xs:10px;
      --container:1180px;
      --gap:24px;
      --speed:.22s ease;
      --hero-overlay:linear-gradient(180deg, rgba(7,11,20,.12), rgba(7,11,20,.92));
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,77,109,.16), transparent 30%),
        radial-gradient(circle at top right, rgba(139,92,246,.14), transparent 26%),
        linear-gradient(180deg, #070b14 0%, #09101c 36%, #070b14 100%);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      line-height:1.7;
      letter-spacing:.2px;
      min-height:100vh;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color var(--speed), transform var(--speed), opacity var(--speed), border-color var(--speed), background var(--speed), box-shadow var(--speed)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(255,77,109,.32);color:#fff}
    :focus-visible{outline:3px solid rgba(255,77,109,.45);outline-offset:3px}

    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(7,11,20,.74);
      backdrop-filter: blur(18px);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      letter-spacing:.4px;
    }
    .brand-mark{
      width:38px;
      height:38px;
      display:grid;
      place-items:center;
      border-radius:12px;
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow:0 10px 24px rgba(255,77,109,.26);
      flex:0 0 auto;
    }
    .brand-name{
      font-size:19px;
      color:#fff;
    }

    .nav-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
      color:#fff;
      border-radius:14px;
      align-items:center;
      justify-content:center;
      box-shadow:var(--shadow-soft);
    }
    .nav-toggle:hover{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.08)}
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .nav-links a{
      padding:10px 15px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      background:transparent;
      font-size:15px;
      font-weight:600;
    }
    .nav-links a:hover{
      color:#fff;
      border-color:rgba(255,255,255,.12);
      background:rgba(255,255,255,.05);
      transform:translateY(-1px);
    }
    .nav-links a.active,
    .nav-links a[aria-current="page"]{
      color:#fff;
      background:linear-gradient(135deg, rgba(255,77,109,.18), rgba(139,92,246,.14));
      border-color:rgba(255,255,255,.12);
      box-shadow:0 8px 20px rgba(255,77,109,.12);
    }

    .hero{
      position:relative;
      overflow:hidden;
      padding:36px 0 24px;
      background:
        var(--hero-overlay),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(7,11,20,.88) 0%, rgba(7,11,20,.62) 50%, rgba(7,11,20,.72) 100%);
      pointer-events:none;
    }
    .hero .container{
      position:relative;
      z-index:1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.08fr .92fr;
      gap:28px;
      align-items:stretch;
      padding:18px 0 22px;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:18px;
      padding:28px 0;
    }
    .eyebrow{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      color:#d5ddee;
      font-size:14px;
      letter-spacing:.8px;
      text-transform:none;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 11px;
      border-radius:999px;
      font-size:12px;
      line-height:1;
      font-weight:700;
      color:#fff;
      background:linear-gradient(135deg, rgba(255,77,109,.94), rgba(255,122,89,.92));
      box-shadow:0 10px 22px rgba(255,77,109,.18);
    }
    .badge.soft{
      background:rgba(255,255,255,.08);
      color:#ecf2ff;
      border:1px solid rgba(255,255,255,.1);
      box-shadow:none;
    }
    .hero h1{
      margin:0;
      font-size:clamp(34px, 6vw, 58px);
      line-height:1.06;
      letter-spacing:-.8px;
    }
    .hero p{
      margin:0;
      color:var(--muted);
      font-size:16px;
      max-width:60ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:4px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:0 18px;
      border-radius:14px;
      font-weight:700;
      border:1px solid transparent;
      letter-spacing:.2px;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 14px 30px rgba(255,77,109,.2);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,77,109,.28)}
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.12);
    }
    .btn-secondary:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
    .search-box{
      display:flex;
      align-items:center;
      gap:10px;
      max-width:560px;
      padding:10px;
      border-radius:18px;
      background:rgba(16,25,43,.72);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      backdrop-filter: blur(10px);
    }
    .search-box input{
      flex:1;
      height:44px;
      border:0;
      background:transparent;
      color:#fff;
      padding:0 12px;
      outline:none;
      min-width:0;
    }
    .search-box input::placeholder{color:#94a2ba}
    .search-box .btn{
      min-height:44px;
      padding:0 16px;
      border-radius:12px;
    }

    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:4px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      color:#dce5f8;
      font-size:13px;
    }

    .hero-panel{
      display:grid;
      gap:16px;
      align-content:start;
      padding:18px;
      border-radius:28px;
      background:linear-gradient(180deg, rgba(17,26,45,.9), rgba(12,18,31,.92));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      backdrop-filter: blur(10px);
    }
    .media-card{
      position:relative;
      overflow:hidden;
      min-height:336px;
      border-radius:24px;
      border:1px solid rgba(255,255,255,.1);
      box-shadow:0 20px 40px rgba(0,0,0,.3);
      background:var(--panel);
    }
    .media-card img{
      width:100%;
      height:100%;
      min-height:336px;
      object-fit:cover;
      transform:scale(1.02);
    }
    .media-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(8,12,21,.04), rgba(8,12,21,.62) 76%, rgba(8,12,21,.86));
    }
    .media-overlay{
      position:absolute;
      inset:auto 0 0 0;
      z-index:1;
      padding:22px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .media-overlay h2{
      margin:0;
      font-size:22px;
      line-height:1.25;
    }
    .media-overlay p{
      margin:0;
      color:#d4ddee;
      font-size:14px;
      max-width:32ch;
    }
    .mini-metrics{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:12px;
    }
    .metric{
      padding:14px 14px 15px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.08);
    }
    .metric strong{
      display:block;
      font-size:16px;
      color:#fff;
      margin-bottom:4px;
    }
    .metric span{
      display:block;
      color:var(--muted);
      font-size:13px;
      line-height:1.5;
    }

    main{display:block}
    .section{
      padding:72px 0;
    }
    .section.tight{padding-top:26px}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:16px;
      margin-bottom:26px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(24px, 3.6vw, 36px);
      line-height:1.15;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      max-width:54ch;
      color:var(--muted);
      font-size:15px;
    }

    .stats-grid{
      display:grid;
      grid-template-columns:repeat(4, 1fr);
      gap:16px;
    }
    .stat-card{
      padding:18px 18px 17px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(17,26,45,.92), rgba(16,25,43,.82));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .stat-card .num{
      display:block;
      font-size:28px;
      line-height:1;
      font-weight:800;
      color:#fff;
      margin-bottom:8px;
    }
    .stat-card strong{
      display:block;
      font-size:16px;
      margin-bottom:4px;
    }
    .stat-card span{
      display:block;
      color:var(--muted);
      font-size:13px;
      line-height:1.5;
    }

    .feature-layout{
      display:grid;
      grid-template-columns: 1.02fr .98fr;
      gap:22px;
      align-items:stretch;
    }
    .panel{
      padding:24px;
      border-radius:26px;
      background:linear-gradient(180deg, rgba(17,26,45,.94), rgba(14,20,34,.94));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .panel h3{
      margin:0 0 12px;
      font-size:24px;
      line-height:1.2;
    }
    .panel p{
      margin:0;
      color:var(--muted);
    }
    .check-list{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:12px;
    }
    .check-list li{
      position:relative;
      padding-left:28px;
      color:#dbe4f7;
    }
    .check-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:.6em;
      width:14px;
      height:14px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--success), #60e8b2);
      box-shadow:0 0 0 4px rgba(36,209,143,.12);
    }

    .promo-card{
      overflow:hidden;
      border-radius:26px;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(17,26,45,.96), rgba(12,18,31,.94));
      box-shadow:var(--shadow);
    }
    .promo-media{
      position:relative;
      min-height:320px;
    }
    .promo-media img{
      width:100%;
      height:100%;
      min-height:320px;
      object-fit:cover;
    }
    .promo-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(7,11,20,.02), rgba(7,11,20,.24), rgba(7,11,20,.88));
    }
    .promo-copy{
      padding:20px 22px 24px;
    }
    .promo-copy h3{
      margin:0 0 10px;
      font-size:22px;
      line-height:1.25;
    }
    .promo-copy p{
      margin:0;
      color:var(--muted);
    }

    .category-grid{
      display:grid;
      grid-template-columns:repeat(4, 1fr);
      gap:18px;
    }
    .category-card{
      position:relative;
      overflow:hidden;
      border-radius:24px;
      background:linear-gradient(180deg, rgba(17,26,45,.94), rgba(12,18,31,.92));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      transform:translateY(0);
    }
    .category-card:hover{
      transform:translateY(-4px);
      border-color:rgba(255,255,255,.16);
      box-shadow:0 20px 38px rgba(0,0,0,.34);
    }
    .category-thumb{
      position:relative;
      aspect-ratio: 16/10;
      overflow:hidden;
    }
    .category-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s ease;
    }
    .category-card:hover .category-thumb img{transform:scale(1.06)}
    .category-thumb::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(7,11,20,.03), rgba(7,11,20,.5));
    }
    .category-body{
      padding:18px;
      display:grid;
      gap:10px;
    }
    .category-body h3{
      margin:0;
      font-size:20px;
      line-height:1.25;
    }
    .category-body p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
      min-height:70px;
    }
    .category-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:0 18px 18px;
      color:#cad6ec;
      font-size:13px;
    }
    .category-card.active{
      border-color:rgba(255,77,109,.42);
      box-shadow:0 18px 36px rgba(255,77,109,.16);
    }
    .category-card.active .badge.soft{
      background:rgba(255,77,109,.16);
      border-color:rgba(255,77,109,.28);
      color:#fff;
    }

    .value-grid{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:18px;
    }
    .value-card{
      padding:22px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(17,26,45,.92), rgba(14,20,34,.94));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .value-icon{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:16px;
      margin-bottom:14px;
      background:linear-gradient(135deg, rgba(255,77,109,.2), rgba(139,92,246,.18));
      color:#fff;
      font-size:20px;
      border:1px solid rgba(255,255,255,.08);
    }
    .value-card h3{
      margin:0 0 8px;
      font-size:20px;
      line-height:1.25;
    }
    .value-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }

    .flow-grid{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:18px;
    }
    .flow-step{
      position:relative;
      padding:22px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(17,26,45,.92), rgba(14,20,34,.94));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .flow-step .step-no{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;
      height:42px;
      border-radius:14px;
      margin-bottom:14px;
      font-weight:800;
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow:0 12px 24px rgba(255,77,109,.18);
    }
    .flow-step h3{
      margin:0 0 8px;
      font-size:19px;
      line-height:1.25;
    }
    .flow-step p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-list details{
      border-radius:20px;
      background:linear-gradient(180deg, rgba(17,26,45,.92), rgba(14,20,34,.95));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-list summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:700;
      font-size:17px;
      color:#fff;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .faq-list summary::-webkit-details-marker{display:none}
    .faq-list summary::after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:10px;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.06);
      color:#dfe7f8;
      flex:0 0 auto;
      transition:transform var(--speed), background var(--speed);
    }
    .faq-list details[open] summary::after{
      content:"–";
      background:rgba(255,77,109,.16);
      color:#fff;
    }
    .faq-body{
      padding:0 20px 20px;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }

    .cta{
      padding-top:18px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      padding:30px;
      border-radius:28px;
      background:
        linear-gradient(135deg, rgba(255,77,109,.18), rgba(139,92,246,.14)),
        linear-gradient(180deg, rgba(17,26,45,.96), rgba(12,18,31,.96));
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow);
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      inset:auto -8% -36% auto;
      width:320px;
      height:320px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(255,122,89,.28), transparent 66%);
      pointer-events:none;
    }
    .cta-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns: 1fr auto;
      gap:18px;
      align-items:center;
    }
    .cta h2{
      margin:0 0 10px;
      font-size:clamp(24px, 4vw, 34px);
      line-height:1.15;
    }
    .cta p{
      margin:0;
      color:#dbe4f6;
      max-width:58ch;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }

    .footer{
      padding:54px 0 28px;
      border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(8,12,21,.4), rgba(7,11,20,.96));
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr .9fr;
      gap:24px;
      align-items:start;
      padding-bottom:24px;
    }
    .footer-brand p,
    .footer-note{
      color:var(--muted);
      margin:12px 0 0;
      font-size:14px;
      line-height:1.8;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-link{
      color:#dce4f7;
      width:max-content;
      padding:4px 0;
    }
    .footer-link:hover{color:#fff;transform:translateX(2px)}
    .footer-note{
      padding:18px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .footer-bottom{
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:#92a1b8;
      font-size:13px;
      flex-wrap:wrap;
    }

    .section-surface{
      position:relative;
    }
    .section-surface::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(255,255,255,.015), transparent 25%, rgba(255,255,255,.015));
      pointer-events:none;
    }

    @media (max-width: 1080px){
      .hero-grid,
      .feature-layout,
      .cta-grid{
        grid-template-columns:1fr;
      }
      .stats-grid,
      .category-grid,
      .value-grid,
      .flow-grid{
        grid-template-columns:repeat(2, 1fr);
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
      .cta-actions{justify-content:flex-start}
    }

    @media (max-width: 768px){
      .nav-toggle{display:inline-flex}
      .nav-links{
        position:absolute;
        top:76px;
        left:16px;
        right:16px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border-radius:20px;
        background:rgba(8,12,21,.96);
        border:1px solid rgba(255,255,255,.08);
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{width:100%;text-align:center}
      .hero{padding-top:18px}
      .hero-copy{padding-top:10px}
      .section{padding:58px 0}
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .mini-metrics,
      .stats-grid,
      .category-grid,
      .value-grid,
      .flow-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .media-card,
      .media-card img,
      .promo-media,
      .promo-media img{
        min-height:280px;
      }
      .search-box{flex-direction:column;align-items:stretch}
      .search-box .btn{width:100%}
      .hero h1{max-width:11ch}
    }

    @media (max-width: 520px){
      .container{width:min(var(--container), calc(100% - 24px));}
      .brand-name{font-size:17px}
      .brand-mark{width:34px;height:34px;border-radius:11px}
      .hero h1{font-size:32px}
      .hero p{font-size:15px}
      .btn{width:100%}
      .hero-actions,.cta-actions{width:100%}
      .hero-actions .btn,.cta-actions .btn{width:100%}
      .panel,.promo-copy,.value-card,.flow-step,.category-body,.cta-panel,.footer-note{padding:18px}
      .footer{padding-top:42px}
      .footer-bottom{flex-direction:column;align-items:flex-start}
      .faq-list summary{font-size:16px}
    }

/* roulang page: category4 */
:root{
      --bg:#08111f;
      --bg-soft:#0f172a;
      --panel:#111b31;
      --panel-2:#15213b;
      --card:#0f1a30;
      --card-2:#13213d;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(255,255,255,.13);
      --text:#e5eefc;
      --muted:#9bb0d1;
      --muted-2:#7890b7;
      --primary:#ff5c93;
      --primary-2:#ff8eb4;
      --accent:#7c6cff;
      --accent-2:#45d3ff;
      --success:#48d7a1;
      --warning:#ffd66e;
      --shadow:0 20px 60px rgba(0,0,0,.35);
      --shadow-soft:0 12px 30px rgba(0,0,0,.22);
      --radius:22px;
      --radius-sm:16px;
      --radius-xs:12px;
      --container:1180px;
      --gap:24px;
      --header-h:78px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(124,108,255,.22), transparent 30%),
        radial-gradient(circle at top right, rgba(69,211,255,.16), transparent 24%),
        linear-gradient(180deg, #07101d 0%, #091120 38%, #060b15 100%);
      min-height:100vh;
      line-height:1.65;
      letter-spacing:.2px;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(255,92,147,.28);color:#fff}
    .container{
      width:min(100% - 32px, var(--container));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      backdrop-filter:saturate(180%) blur(18px);
      background:linear-gradient(180deg, rgba(7,16,29,.88), rgba(7,16,29,.72));
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .nav-wrap{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:40px;
      height:40px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      color:#fff;
      font-weight:800;
      box-shadow:0 10px 22px rgba(255,92,147,.32);
      flex:none;
    }
    .brand-name{
      font-size:18px;
      font-weight:800;
      letter-spacing:.4px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-toggle{
      display:none;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
      color:var(--text);
      border-radius:14px;
      width:44px;
      height:44px;
      cursor:pointer;
      transition:transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
    }
    .nav-toggle:hover{transform:translateY(-1px);background:rgba(255,255,255,.08);border-color:var(--line-2)}
    .nav-toggle:focus-visible,
    .nav-links a:focus-visible,
    .btn:focus-visible,
    .chip:focus-visible,
    .search-input:focus-visible,
    .search-button:focus-visible,
    .footer-link:focus-visible,
    .faq summary:focus-visible{
      outline:3px solid rgba(69,211,255,.35);
      outline-offset:3px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      transition:transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.05);
      border-color:rgba(255,255,255,.06);
      transform:translateY(-1px);
      box-shadow:0 12px 24px rgba(0,0,0,.15);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(255,92,147,.18), rgba(124,108,255,.2));
      border-color:rgba(255,255,255,.12);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    }

    .hero{
      position:relative;
      overflow:hidden;
      padding:34px 0 16px;
    }
    .hero-panel{
      position:relative;
      border:1px solid rgba(255,255,255,.08);
      border-radius:calc(var(--radius) + 10px);
      background:
        linear-gradient(120deg, rgba(6,11,21,.68), rgba(8,16,30,.32)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(7,12,22,.85) 0%, rgba(7,12,22,.66) 42%, rgba(7,12,22,.24) 100%),
        radial-gradient(circle at right center, rgba(255,92,147,.2), transparent 26%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.25fr .95fr;
      gap:24px;
      padding:34px;
      align-items:stretch;
      min-height:520px;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:18px;
      max-width:700px;
      padding:10px 0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:fit-content;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
      font-size:14px;
      letter-spacing:.4px;
      backdrop-filter:blur(10px);
    }
    .eyebrow b{
      color:var(--warning);
      font-weight:800;
    }
    h1{
      margin:0;
      font-size:clamp(34px, 5vw, 64px);
      line-height:1.06;
      letter-spacing:-.8px;
    }
    .hero p{
      margin:0;
      color:rgba(229,238,252,.88);
      font-size:16px;
      max-width:58ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:6px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 18px;
      border-radius:14px;
      border:1px solid transparent;
      cursor:pointer;
      transition:transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
      font-weight:700;
      letter-spacing:.2px;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow:0 16px 30px rgba(255,92,147,.22);
    }
    .btn-primary:hover{box-shadow:0 20px 34px rgba(124,108,255,.24)}
    .btn-ghost{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.12);
    }
    .btn-ghost:hover{background:rgba(255,255,255,.1)}
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.09);
      color:rgba(229,238,252,.92);
      font-size:13px;
    }
    .tag::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--primary), var(--accent-2));
      box-shadow:0 0 0 4px rgba(255,255,255,.04);
    }

    .hero-side{
      display:grid;
      gap:14px;
      align-content:center;
    }
    .spotlight{
      padding:18px;
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(19,33,61,.92), rgba(12,20,36,.88));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .spotlight .thumb{
      position:relative;
      aspect-ratio:16/10;
      border-radius:18px;
      overflow:hidden;
      margin-bottom:14px;
      background:#0d1629;
    }
    .spotlight .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s var(--ease), filter .35s var(--ease);
    }
    .spotlight:hover .thumb img{transform:scale(1.03);filter:saturate(1.05)}
    .spotlight h2{
      margin:0 0 8px;
      font-size:20px;
      line-height:1.25;
    }
    .spotlight p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .quick-stats{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .stat{
      padding:14px 12px;
      border-radius:18px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.07);
      text-align:center;
    }
    .stat strong{
      display:block;
      font-size:20px;
      line-height:1.15;
      color:#fff;
    }
    .stat span{
      color:var(--muted-2);
      font-size:13px;
    }

    .main{
      padding:28px 0 64px;
    }
    .section{
      margin-top:26px;
      padding:26px;
      border-radius:calc(var(--radius) + 2px);
      background:linear-gradient(180deg, rgba(17,27,49,.9), rgba(12,18,33,.86));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:18px;
    }
    .section-title{
      margin:0;
      font-size:26px;
      line-height:1.2;
      letter-spacing:-.4px;
    }
    .section-desc{
      margin:0;
      color:var(--muted);
      max-width:70ch;
      font-size:15px;
    }
    .section-link{
      white-space:nowrap;
      color:#fff;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      transition:background .2s var(--ease), transform .2s var(--ease);
    }
    .section-link:hover{transform:translateY(-1px);background:rgba(255,255,255,.1)}
    .category-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .category-card{
      position:relative;
      overflow:hidden;
      min-height:214px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(20,31,54,.9), rgba(10,16,29,.96));
      box-shadow:0 14px 32px rgba(0,0,0,.2);
      transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
    }
    .category-card:hover{
      transform:translateY(-4px);
      box-shadow:0 18px 40px rgba(0,0,0,.28);
      border-color:rgba(255,255,255,.14);
    }
    .category-media{
      position:absolute;
      inset:0;
    }
    .category-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.38;
      filter:saturate(1.02) contrast(1.02);
      transition:transform .35s var(--ease), opacity .35s var(--ease);
    }
    .category-card:hover .category-media img{
      transform:scale(1.04);
      opacity:.46;
    }
    .category-overlay{
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(6,11,21,.1), rgba(6,11,21,.86) 84%),
        linear-gradient(135deg, rgba(255,92,147,.08), rgba(124,108,255,.06));
    }
    .category-body{
      position:relative;
      height:100%;
      padding:18px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      gap:10px;
    }
    .category-badge{
      width:fit-content;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(0,0,0,.34);
      border:1px solid rgba(255,255,255,.1);
      color:#fff;
      font-size:12px;
    }
    .category-card h3{
      margin:0;
      font-size:20px;
      line-height:1.25;
    }
    .category-card p{
      margin:0;
      color:rgba(229,238,252,.82);
      font-size:14px;
    }
    .category-card .card-action{
      margin-top:4px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:fit-content;
      color:#fff;
      font-weight:700;
      font-size:14px;
    }
    .category-card .card-action::after{
      content:"→";
      transition:transform .2s var(--ease);
    }
    .category-card:hover .card-action::after{transform:translateX(3px)}
    .category-card.active{
      border-color:rgba(255,92,147,.32);
      box-shadow:0 18px 42px rgba(255,92,147,.12);
    }
    .category-card.active .category-badge{
      background:linear-gradient(135deg, rgba(255,92,147,.2), rgba(124,108,255,.2));
    }

    .feature-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .feature{
      padding:20px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .feature .icon{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:14px;
      margin-bottom:14px;
      background:linear-gradient(135deg, rgba(255,92,147,.2), rgba(124,108,255,.2));
      color:#fff;
      font-size:20px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .feature h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .feature p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .browse{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
      align-items:stretch;
    }
    .search-panel{
      padding:22px;
      border-radius:22px;
      background:
        radial-gradient(circle at top right, rgba(255,92,147,.15), transparent 32%),
        linear-gradient(180deg, rgba(19,32,58,.92), rgba(11,18,33,.92));
      border:1px solid rgba(255,255,255,.08);
    }
    .search-panel h3{
      margin:0 0 8px;
      font-size:22px;
    }
    .search-panel p{
      margin:0 0 16px;
      color:var(--muted);
      font-size:14px;
    }
    .search-form{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .search-input{
      flex:1 1 260px;
      min-height:50px;
      border-radius:14px;
      border:1px solid rgba(255,255,255,.1);
      background:rgba(255,255,255,.05);
      color:var(--text);
      padding:0 16px;
      outline:none;
      transition:border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
    }
    .search-input::placeholder{color:rgba(155,176,209,.72)}
    .search-input:focus{
      border-color:rgba(69,211,255,.45);
      background:rgba(255,255,255,.07);
      box-shadow:0 0 0 4px rgba(69,211,255,.08);
    }
    .search-button{
      min-height:50px;
      padding:0 20px;
      border-radius:14px;
      border:none;
      color:#fff;
      background:linear-gradient(135deg, var(--accent), var(--primary));
      cursor:pointer;
      font-weight:800;
      transition:transform .2s var(--ease), box-shadow .2s var(--ease), opacity .2s var(--ease);
      box-shadow:0 16px 30px rgba(124,108,255,.22);
    }
    .search-button:hover{transform:translateY(-1px)}
    .search-hints{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:14px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:rgba(229,238,252,.9);
      font-size:13px;
      cursor:pointer;
      transition:background .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease);
    }
    .chip:hover{transform:translateY(-1px);background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14)}
    .highlight-box{
      position:relative;
      overflow:hidden;
      padding:22px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(180deg, rgba(15,26,48,.96), rgba(12,18,33,.95)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .highlight-box::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(6,11,21,.1), rgba(6,11,21,.7));
      pointer-events:none;
    }
    .highlight-box > *{position:relative}
    .mini-list{
      display:grid;
      gap:12px;
      margin-top:16px;
    }
    .mini-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.07);
    }
    .mini-item .rank{
      width:32px;
      height:32px;
      flex:none;
      display:grid;
      place-items:center;
      border-radius:10px;
      background:linear-gradient(135deg, rgba(255,92,147,.2), rgba(69,211,255,.16));
      color:#fff;
      font-weight:800;
    }
    .mini-item h4{
      margin:0 0 4px;
      font-size:16px;
    }
    .mini-item p{
      margin:0;
      color:var(--muted);
      font-size:13px;
    }

    .story-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
      align-items:stretch;
    }
    .story{
      display:flex;
      gap:16px;
      padding:18px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
    }
    .story-media{
      width:168px;
      min-width:168px;
      aspect-ratio:4/5;
      border-radius:18px;
      overflow:hidden;
      background:#0d1629;
      border:1px solid rgba(255,255,255,.06);
    }
    .story-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s var(--ease);
    }
    .story:hover .story-media img{transform:scale(1.04)}
    .story-body{
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:10px;
      min-width:0;
    }
    .story-body h3{
      margin:0;
      font-size:20px;
      line-height:1.25;
    }
    .story-body p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .bullets{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .bullets li{
      position:relative;
      padding-left:26px;
      color:rgba(229,238,252,.9);
    }
    .bullets li::before{
      content:"";
      position:absolute;
      left:0;
      top:.55em;
      width:10px;
      height:10px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--primary), var(--accent-2));
      box-shadow:0 0 0 4px rgba(255,255,255,.04);
    }

    .faq{
      display:grid;
      gap:12px;
    }
    .faq details{
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
      overflow:hidden;
    }
    .faq summary{
      list-style:none;
      cursor:pointer;
      padding:18px 18px;
      font-weight:700;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .faq summary::-webkit-details-marker{display:none}
    .faq summary::after{
      content:"+";
      width:28px;
      height:28px;
      flex:none;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:rgba(255,255,255,.06);
      color:#fff;
      transition:transform .2s var(--ease), background .2s var(--ease);
    }
    .faq details[open] summary::after{
      content:"−";
      transform:rotate(180deg);
      background:rgba(255,92,147,.14);
    }
    .faq .answer{
      padding:0 18px 18px;
      color:var(--muted);
      font-size:14px;
      border-top:1px solid rgba(255,255,255,.06);
    }

    .cta-band{
      margin-top:26px;
      padding:28px;
      border-radius:calc(var(--radius) + 2px);
      background:
        radial-gradient(circle at right top, rgba(255,92,147,.18), transparent 28%),
        linear-gradient(135deg, rgba(19,33,61,.95), rgba(12,18,33,.96));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .cta-band h2{
      margin:0 0 8px;
      font-size:28px;
      line-height:1.18;
    }
    .cta-band p{
      margin:0;
      color:var(--muted);
      max-width:66ch;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }

    .footer{
      margin-top:18px;
      border-top:1px solid rgba(255,255,255,.06);
      background:linear-gradient(180deg, rgba(7,12,21,.4), rgba(4,8,14,.9));
    }
    .footer .container{
      padding:30px 0 18px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.15fr .95fr .9fr;
      gap:24px;
      align-items:start;
    }
    .footer-brand p,
    .footer-note{
      margin:14px 0 0;
      color:var(--muted);
      font-size:14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-link{
      display:inline-flex;
      width:fit-content;
      color:var(--muted);
      transition:color .2s var(--ease), transform .2s var(--ease);
    }
    .footer-link:hover{color:#fff;transform:translateX(2px)}
    .footer-note{
      padding:18px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
      line-height:1.8;
    }
    .footer-bottom{
      margin-top:22px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.06);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:var(--muted-2);
      font-size:13px;
    }

    .pill-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:10px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 12px;
      border-radius:999px;
      color:#fff;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      font-size:13px;
    }
    .pill i{
      width:8px;
      height:8px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--success), var(--accent-2));
      display:inline-block;
    }

    @media (max-width: 1080px){
      .hero-grid,
      .browse,
      .story-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .hero-grid{min-height:auto}
      .category-grid{
        grid-template-columns:repeat(2,1fr);
      }
      .feature-grid{
        grid-template-columns:repeat(2,1fr);
      }
      .cta-band{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width: 768px){
      .nav-toggle{display:inline-grid;place-items:center}
      .nav-links{
        position:absolute;
        left:16px;
        right:16px;
        top:calc(var(--header-h) - 8px);
        display:grid;
        gap:8px;
        padding:14px;
        border-radius:18px;
        background:rgba(7,16,29,.98);
        border:1px solid rgba(255,255,255,.08);
        box-shadow:var(--shadow);
        opacity:0;
        transform:translateY(-8px);
        pointer-events:none;
        transition:opacity .22s var(--ease), transform .22s var(--ease);
      }
      .nav-links.is-open{
        opacity:1;
        transform:translateY(0);
        pointer-events:auto;
      }
      .nav-links a{
        width:100%;
        justify-content:flex-start;
      }
      .hero-panel,
      .section,
      .cta-band{border-radius:20px}
      .hero-grid,
      .section,
      .cta-band{padding:20px}
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .category-grid,
      .feature-grid{
        grid-template-columns:1fr;
      }
      .story{
        flex-direction:column;
      }
      .story-media{
        width:100%;
        min-width:0;
      }
      .quick-stats{
        grid-template-columns:1fr;
      }
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
    }
    @media (max-width: 520px){
      .container{width:min(100% - 24px, var(--container))}
      .brand-name{font-size:16px}
      .hero{
        padding-top:18px;
      }
      .hero-grid,
      .section,
      .cta-band{
        padding:16px;
      }
      h1{font-size:clamp(30px, 12vw, 42px)}
      .section-title{font-size:22px}
      .cta-band h2{font-size:24px}
      .spotlight h2{font-size:18px}
      .search-form .btn,
      .search-button{
        width:100%;
      }
      .search-input{
        flex-basis:100%;
      }
    }

/* roulang page: category3 */
:root{
      --bg:#08111f;
      --bg-soft:#0b1628;
      --surface:#0f1b31;
      --surface-2:#13233d;
      --panel:rgba(15,27,49,.82);
      --panel-strong:rgba(10,18,32,.92);
      --text:#e7eefb;
      --muted:#9fb0c8;
      --soft:#c8d4e8;
      --line:rgba(160,179,204,.16);
      --line-strong:rgba(255,255,255,.12);
      --primary:#ff4d6d;
      --primary-2:#ff8a5c;
      --accent:#8b5cf6;
      --success:#2dd4bf;
      --shadow:0 24px 60px rgba(2,8,23,.42);
      --shadow-soft:0 12px 30px rgba(2,8,23,.24);
      --radius:22px;
      --radius-lg:28px;
      --container:1180px;
      --gap:24px;
      --gap-lg:32px;
      --transition:.22s ease;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      line-height:1.7;
      background:
        radial-gradient(circle at top left, rgba(255,77,109,.16), transparent 32%),
        radial-gradient(circle at top right, rgba(139,92,246,.14), transparent 28%),
        linear-gradient(180deg, #07101e 0%, #091321 26%, #08111f 100%);
      min-height:100vh;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    body::selection{background:rgba(255,77,109,.28);color:#fff}
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none;transition:color var(--transition),transform var(--transition),opacity var(--transition),background var(--transition),border-color var(--transition),box-shadow var(--transition)}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(255,138,92,.9);outline-offset:3px}
    .container{
      width:min(100% - 32px, var(--container));
      margin-inline:auto;
    }
    .skip-link{
      position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
    }
    .skip-link:focus{
      left:16px;top:16px;width:auto;height:auto;padding:10px 14px;background:#fff;color:#111;border-radius:12px;z-index:9999;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:saturate(160%) blur(16px);
      background:rgba(5,11,20,.72);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav-wrap{
      min-height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.2px;
      color:#fff;
      white-space:nowrap;
    }
    .brand-mark{
      width:40px;height:40px;
      display:grid;place-items:center;
      border-radius:14px;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      color:#fff;
      box-shadow:0 12px 26px rgba(255,77,109,.28);
      flex:none;
    }
    .brand-name{
      font-size:18px;
      line-height:1;
    }
    .nav-toggle{
      display:none;
      width:46px;height:46px;
      align-items:center;
      justify-content:center;
      border:1px solid rgba(255,255,255,.12);
      border-radius:14px;
      background:rgba(255,255,255,.04);
      color:#fff;
      box-shadow:none;
    }
    .nav-toggle:hover{border-color:rgba(255,255,255,.22);background:rgba(255,255,255,.08)}
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .nav-links a{
      position:relative;
      padding:11px 15px;
      border-radius:999px;
      color:var(--soft);
      border:1px solid transparent;
      background:transparent;
      line-height:1;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.12);
      transform:translateY(-1px);
    }
    .nav-links a.active,
    .nav-links a[aria-current="page"]{
      color:#fff;
      background:linear-gradient(135deg, rgba(255,77,109,.18), rgba(255,138,92,.14));
      border-color:rgba(255,138,92,.3);
      box-shadow:0 12px 24px rgba(255,77,109,.12);
    }

    .hero{
      position:relative;
      overflow:hidden;
      padding:78px 0 36px;
      background:
        linear-gradient(180deg, rgba(4,8,16,.18), rgba(4,8,16,.72)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 20% 20%, rgba(255,255,255,.10), transparent 24%),
        radial-gradient(circle at 70% 10%, rgba(255,77,109,.28), transparent 22%),
        linear-gradient(180deg, rgba(8,15,27,.18), rgba(8,15,27,.72));
      pointer-events:none;
    }
    .hero-shell{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(300px,.92fr);
      gap:28px;
      align-items:stretch;
    }
    .hero-copy{
      padding:28px 0 18px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
      font-weight:700;
      font-size:14px;
      letter-spacing:.2px;
      margin-bottom:18px;
      backdrop-filter:blur(10px);
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:999px;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 0 0 5px rgba(255,77,109,.12);
    }
    .hero h1{
      margin:0 0 16px;
      font-size:clamp(36px, 5vw, 62px);
      line-height:1.05;
      letter-spacing:-.03em;
      max-width:12ch;
      text-shadow:0 12px 30px rgba(0,0,0,.28);
    }
    .hero-lead{
      margin:0;
      max-width:64ch;
      color:rgba(235,242,252,.92);
      font-size:17px;
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:22px 0 24px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
      color:#fff;
      font-size:14px;
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(12px);
    }
    .chip i{
      width:8px;height:8px;border-radius:999px;background:var(--success);display:inline-block;
      box-shadow:0 0 0 5px rgba(45,212,191,.12);
    }

    .quick-search{
      display:flex;
      align-items:center;
      gap:12px;
      padding:12px;
      border-radius:18px;
      background:rgba(4,10,19,.5);
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-soft);
      max-width:760px;
      backdrop-filter:blur(14px);
    }
    .quick-search input{
      flex:1;
      min-width:0;
      border:0;
      outline:none;
      background:transparent;
      color:#fff;
      padding:10px 8px;
      font-size:16px;
    }
    .quick-search input::placeholder{color:#b6c2d3}
    .search-hint{
      margin-top:10px;
      color:rgba(230,237,250,.72);
      font-size:13px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:0 18px;
      border-radius:14px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.1px;
      white-space:nowrap;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition),opacity var(--transition);
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 16px 30px rgba(255,77,109,.22);
    }
    .btn-primary:hover{box-shadow:0 20px 38px rgba(255,77,109,.28)}
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.12);
    }
    .btn-secondary:hover{background:rgba(255,255,255,.1)}
    .btn-ghost{
      color:var(--soft);
      background:transparent;
      border-color:rgba(255,255,255,.12);
    }
    .btn-ghost:hover{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.2);
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:18px;
    }

    .hero-aside{
      display:flex;
      flex-direction:column;
      gap:16px;
      padding:10px 0 20px;
    }
    .pulse-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg, rgba(20,32,56,.8), rgba(11,19,34,.86));
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow);
      padding:16px;
    }
    .pulse-card::before{
      content:"";
      position:absolute;
      inset:auto -30px -30px auto;
      width:120px;height:120px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,77,109,.26), transparent 70%);
      pointer-events:none;
    }
    .pulse-image{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
      margin-bottom:14px;
    }
    .pulse-title{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.4;
    }
    .pulse-desc{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .mini-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
    }
    .mini{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
    }
    .mini strong{
      display:block;
      font-size:15px;
      margin-bottom:6px;
      color:#fff;
    }
    .mini span{
      color:var(--muted);
      font-size:13px;
    }

    .section{
      padding:76px 0;
    }
    .section-soft{
      background:
        linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
      border-top:1px solid rgba(255,255,255,.05);
      border-bottom:1px solid rgba(255,255,255,.05);
    }
    .section-head{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin-bottom:28px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(26px, 3vw, 38px);
      line-height:1.15;
      letter-spacing:-.02em;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:68ch;
    }

    .feature-strip{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
    }
    .feature{
      padding:20px;
      border-radius:22px;
      background:linear-gradient(180deg, rgba(17,28,49,.88), rgba(12,20,35,.94));
      border:1px solid rgba(255,255,255,.09);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .feature:hover{
      transform:translateY(-3px);
      border-color:rgba(255,255,255,.16);
      box-shadow:var(--shadow);
    }
    .feature .icon{
      width:42px;height:42px;
      border-radius:14px;
      display:grid;place-items:center;
      margin-bottom:14px;
      color:#fff;
      background:linear-gradient(135deg, rgba(255,77,109,.95), rgba(255,138,92,.92));
      box-shadow:0 14px 28px rgba(255,77,109,.16);
      font-weight:800;
    }
    .feature h3{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.35;
    }
    .feature p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .category-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .category-card{
      position:relative;
      overflow:hidden;
      border-radius:26px;
      background:linear-gradient(180deg, rgba(16,27,47,.96), rgba(10,17,30,.98));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .category-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(255,255,255,.16);
    }
    .category-card.is-current{
      border-color:rgba(255,138,92,.38);
      box-shadow:0 26px 60px rgba(255,77,109,.16);
      background:linear-gradient(180deg, rgba(24,31,50,.98), rgba(11,18,33,.98));
    }
    .card-media{
      position:relative;
      aspect-ratio:4/3;
      overflow:hidden;
    }
    .card-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      transform:scale(1.01);
      transition:transform .45s ease, filter .45s ease;
      filter:saturate(1.05) contrast(1.02);
    }
    .category-card:hover .card-media img{transform:scale(1.05)}
    .card-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(5,10,18,.08), rgba(5,10,18,.72));
    }
    .card-badge{
      position:absolute;
      left:14px;
      top:14px;
      z-index:1;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(6,12,22,.56);
      border:1px solid rgba(255,255,255,.14);
      color:#fff;
      font-size:12px;
      backdrop-filter:blur(10px);
    }
    .card-body{
      display:flex;
      flex-direction:column;
      gap:14px;
      padding:18px;
      flex:1;
    }
    .card-body h3{
      margin:0;
      font-size:20px;
      line-height:1.35;
    }
    .card-body p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .card-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:#cdd8e8;
      font-size:12px;
    }
    .card-action{
      margin-top:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding-top:4px;
    }
    .card-action .btn{
      width:100%;
      min-height:44px;
      border-radius:12px;
    }
    .card-note{
      color:#aebed4;
      font-size:12px;
      white-space:nowrap;
    }

    .split{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);
      gap:22px;
      align-items:center;
    }
    .image-stack{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:14px;
      align-items:stretch;
    }
    .image-stack .frame{
      overflow:hidden;
      border-radius:24px;
      position:relative;
      min-height:260px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      box-shadow:var(--shadow-soft);
    }
    .image-stack .frame img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .image-stack .frame:hover img{transform:scale(1.05)}
    .image-stack .frame.big{min-height:380px}
    .image-stack .frame.small{min-height:180px}
    .image-stack .caption{
      position:absolute;
      inset:auto 16px 16px 16px;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(5,10,18,.58);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(12px);
      color:#fff;
    }
    .image-stack .caption strong{
      display:block;
      margin-bottom:4px;
      font-size:16px;
    }
    .image-stack .caption span{
      color:#c8d4e8;
      font-size:13px;
    }

    .checklist{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .checklist li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .checklist .dot{
      width:10px;height:10px;border-radius:999px;
      margin-top:8px;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 0 0 5px rgba(255,77,109,.12);
      flex:none;
    }
    .checklist strong{display:block;margin-bottom:4px}
    .checklist span{color:var(--muted);font-size:14px}

    .workflow{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .step{
      position:relative;
      padding:22px;
      border-radius:24px;
      background:linear-gradient(180deg, rgba(18,31,54,.92), rgba(10,18,31,.96));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .step-num{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      margin-bottom:14px;
      font-weight:800;
      color:#fff;
      background:linear-gradient(135deg, rgba(124,58,237,.92), rgba(255,77,109,.92));
    }
    .step h3{
      margin:0 0 8px;
      font-size:18px;
    }
    .step p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .gallery-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .gallery-card{
      overflow:hidden;
      border-radius:26px;
      background:linear-gradient(180deg, rgba(17,28,49,.94), rgba(9,16,29,.98));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .gallery-card figure{
      margin:0;
      position:relative;
    }
    .gallery-card img{
      width:100%;
      aspect-ratio:4/5;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .gallery-card:hover img{transform:scale(1.04)}
    .gallery-card figcaption{
      position:absolute;
      inset:auto 14px 14px 14px;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(5,10,18,.58);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(12px);
    }
    .gallery-card figcaption strong{
      display:block;
      margin-bottom:4px;
      color:#fff;
      font-size:15px;
    }
    .gallery-card figcaption span{
      color:#cbd7e8;
      font-size:12px;
    }

    .faq-grid{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border-radius:20px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      box-shadow:var(--shadow-soft);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      font-weight:700;
      color:#fff;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"＋";
      width:34px;height:34px;
      display:grid;place-items:center;
      border-radius:12px;
      background:rgba(255,255,255,.06);
      color:#fff;
      flex:none;
      transition:transform var(--transition),background var(--transition);
    }
    .faq-item[open] summary::after{
      content:"—";
      background:rgba(255,138,92,.16);
      transform:rotate(0deg);
    }
    .faq-content{
      padding:0 20px 18px;
      color:var(--muted);
      font-size:14px;
    }

    .cta{
      padding:10px 0 84px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      padding:30px;
      border-radius:30px;
      background:
        linear-gradient(180deg, rgba(8,16,29,.72), rgba(8,16,29,.86)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow);
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg, rgba(255,77,109,.12), rgba(139,92,246,.10), transparent 70%);
      pointer-events:none;
    }
    .cta-panel > *{position:relative;z-index:1}
    .cta-copy{
      max-width:720px;
    }
    .cta-copy h2{
      margin:10px 0 10px;
      font-size:clamp(26px, 3vw, 40px);
      line-height:1.15;
    }
    .cta-copy p{
      margin:0;
      color:rgba(230,237,250,.86);
      max-width:60ch;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }

    .footer{
      padding:36px 0 24px;
      background:rgba(3,8,16,.92);
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .95fr .85fr;
      gap:24px;
      padding:12px 0 24px;
    }
    .footer-brand p,
    .footer-note{
      color:var(--muted);
      margin:14px 0 0;
      font-size:14px;
    }
    .footer-links{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px 14px;
    }
    .footer-link{
      color:#dbe5f3;
      padding:6px 0;
      width:max-content;
      opacity:.88;
    }
    .footer-link:hover,
    .footer-link:focus-visible{
      opacity:1;
      color:#fff;
      transform:translateX(2px);
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      color:#aebed4;
      font-size:13px;
    }

    @media (max-width: 1120px){
      .hero-shell,
      .split{
        grid-template-columns:1fr;
      }
      .feature-strip,
      .category-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .gallery-grid,
      .workflow,
      .footer-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .cta-panel{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-actions{
        justify-content:flex-start;
      }
    }

    @media (max-width: 768px){
      .nav-toggle{display:inline-flex}
      .nav-links{
        position:absolute;
        top:calc(100% + 12px);
        left:16px;
        right:16px;
        padding:12px;
        border-radius:18px;
        background:rgba(7,13,24,.96);
        border:1px solid rgba(255,255,255,.1);
        box-shadow:var(--shadow);
        display:none;
      }
      .nav-links.is-open{display:flex;flex-direction:column;align-items:stretch}
      .nav-links a{width:100%;text-align:center}
      .hero{padding:58px 0 28px}
      .hero h1{max-width:none}
      .hero-lead{font-size:16px}
      .section{padding:58px 0}
      .feature-strip,
      .category-grid,
      .gallery-grid,
      .workflow,
      .footer-grid,
      .mini-grid{
        grid-template-columns:1fr;
      }
      .cta-panel{padding:22px}
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
    }

    @media (max-width: 520px){
      .container{width:min(100% - 24px, var(--container))}
      .nav-wrap{min-height:68px}
      .brand-name{font-size:16px}
      .hero h1{font-size:clamp(30px, 12vw, 44px)}
      .hero-lead{font-size:15px}
      .quick-search{
        flex-direction:column;
        align-items:stretch;
      }
      .quick-search .btn,
      .hero-actions .btn,
      .cta-actions .btn{
        width:100%;
      }
      .card-action{
        flex-direction:column;
        align-items:stretch;
      }
      .card-note{white-space:normal}
      .section-head h2{font-size:clamp(24px, 8vw, 32px)}
      .faq-item summary{padding:16px}
      .faq-content{padding:0 16px 16px}
    }