/* roulang page: index */
:root{
      --color-primary:#c94375;
      --color-primary-dark:#a92e5e;
      --color-primary-soft:#fff0f5;
      --color-secondary:#7c58d3;
      --color-coral:#f47d61;
      --color-amber:#d99a26;
      --color-green:#31a879;
      --color-bg:#fbf7f2;
      --color-bg-2:#fffaf4;
      --color-surface:#ffffff;
      --color-text:#27242b;
      --color-muted:#706b76;
      --color-light:#9a94a0;
      --color-border:rgba(39,36,43,.12);
      --shadow-soft:0 18px 50px rgba(83,55,69,.08);
      --shadow-hover:0 24px 70px rgba(83,55,69,.14);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-pill:999px;
      --container:1180px;
      --nav-height:76px;
      --focus:0 0 0 .22rem rgba(201,67,117,.18);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(201,67,117,.08), transparent 28%),
        radial-gradient(circle at 84% 12%, rgba(124,88,211,.08), transparent 26%),
        linear-gradient(180deg,var(--color-bg),#fff 46%,var(--color-bg-2));
      line-height:1.78;
      font-size:16px;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:all .22s ease}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(201,67,117,.18);color:var(--color-text)}
    .page-shell{overflow:hidden}
    .container-narrow{max-width:var(--container);margin:0 auto;padding:0 22px}
    .section{padding:88px 0}
    .section-sm{padding:62px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 13px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.78);
      border:1px solid var(--color-border);
      color:var(--color-primary-dark);
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
      box-shadow:0 8px 24px rgba(70,46,58,.05);
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:linear-gradient(135deg,var(--color-primary),var(--color-coral));
      box-shadow:0 0 0 5px rgba(201,67,117,.1);
    }
    .section-title{
      margin:14px 0 12px;
      font-size:clamp(28px,4vw,40px);
      line-height:1.24;
      letter-spacing:-.03em;
      font-weight:800;
    }
    .section-desc{
      color:var(--color-muted);
      max-width:760px;
      font-size:17px;
      margin:0;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,250,246,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--color-border);
    }
    .navbar{
      min-height:var(--nav-height);
      padding:0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:11px;
      font-weight:800;
      color:var(--color-text);
      letter-spacing:-.02em;
      padding:0;
      font-size:18px;
    }
    .brand-mark{
      width:34px;height:34px;border-radius:12px;
      background:
        radial-gradient(circle at 30% 25%, #ffd9aa 0 22%, transparent 23%),
        linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      box-shadow:0 12px 28px rgba(201,67,117,.18);
      position:relative;
      flex:none;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      right:7px;bottom:7px;
      width:8px;height:8px;border-radius:50%;
      background:#fff;
      opacity:.88;
    }
    .navbar-toggler{
      border:1px solid var(--color-border);
      border-radius:14px;
      padding:9px 11px;
      background:#fff;
    }
    .navbar-toggler:focus{box-shadow:var(--focus)}
    .navbar-nav{
      gap:4px;
      align-items:center;
    }
    .nav-link{
      color:var(--color-muted);
      font-weight:650;
      font-size:15px;
      padding:9px 13px!important;
      border-radius:var(--radius-pill);
      position:relative;
    }
    .nav-link:hover,.nav-link:focus{
      color:var(--color-primary-dark);
      background:rgba(201,67,117,.07);
    }
    .nav-link.active{
      color:var(--color-primary-dark)!important;
      background:#fff;
      box-shadow:inset 0 0 0 1px rgba(201,67,117,.16);
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:50%;
      transform:translateX(-50%);
      bottom:4px;
      width:18px;height:2px;
      border-radius:99px;
      background:var(--color-primary);
    }
    .nav-cta{
      margin-left:10px;
      padding:10px 16px;
      border-radius:var(--radius-pill);
      background:var(--color-text);
      color:#fff!important;
      font-weight:750;
      font-size:14px;
      box-shadow:0 12px 30px rgba(39,36,43,.12);
    }
    .nav-cta:hover{transform:translateY(-2px);background:var(--color-primary-dark)}

    .hero{
      padding:74px 0 68px;
    }
    .hero-panel{
      position:relative;
      border:1px solid var(--color-border);
      border-radius:36px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(255,246,239,.88)),
        radial-gradient(circle at 50% 0%,rgba(201,67,117,.12),transparent 38%);
      box-shadow:var(--shadow-soft);
      padding:58px 44px 38px;
      overflow:hidden;
    }
    .hero-panel::before,.hero-panel::after{
      content:"";
      position:absolute;
      border-radius:50%;
      filter:blur(2px);
      opacity:.6;
      pointer-events:none;
    }
    .hero-panel::before{
      width:220px;height:220px;
      right:-80px;top:-80px;
      background:rgba(124,88,211,.13);
    }
    .hero-panel::after{
      width:180px;height:180px;
      left:-70px;bottom:-90px;
      background:rgba(244,125,97,.13);
    }
    .hero-content{
      position:relative;
      z-index:2;
      text-align:center;
      max-width:920px;
      margin:0 auto;
    }
    .hero h1{
      font-size:clamp(34px,5vw,54px);
      line-height:1.16;
      font-weight:850;
      letter-spacing:-.045em;
      margin:18px 0 18px;
    }
    .hero-lead{
      max-width:780px;
      margin:0 auto 26px;
      color:var(--color-muted);
      font-size:18px;
      line-height:1.88;
    }
    .hero-search{
      max-width:760px;
      margin:0 auto 20px;
      display:flex;
      gap:10px;
      background:#fff;
      border:1px solid rgba(201,67,117,.14);
      border-radius:24px;
      padding:9px;
      box-shadow:0 16px 42px rgba(77,49,62,.09);
    }
    .hero-search input{
      flex:1;
      min-width:0;
      height:50px;
      border:0;
      outline:0;
      padding:0 18px;
      border-radius:18px;
      color:var(--color-text);
      background:linear-gradient(180deg,#fff,#fffaf7);
    }
    .hero-search input:focus{box-shadow:var(--focus)}
    .btn-main,.btn-soft,.btn-line{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:var(--radius-pill);
      border:1px solid transparent;
      font-weight:800;
      transition:all .22s ease;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-main{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-coral));
      box-shadow:0 15px 32px rgba(201,67,117,.25);
    }
    .btn-main:hover,.btn-main:focus{
      color:#fff;
      transform:translateY(-3px);
      background:linear-gradient(135deg,var(--color-primary-dark),#e56d51);
      box-shadow:0 20px 46px rgba(201,67,117,.32);
    }
    .btn-soft{
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
      border-color:rgba(201,67,117,.14);
    }
    .btn-soft:hover,.btn-soft:focus{
      color:var(--color-primary-dark);
      border-color:rgba(201,67,117,.3);
      transform:translateY(-2px);
      background:#fff;
    }
    .btn-line{
      color:var(--color-text);
      background:#fff;
      border-color:var(--color-border);
    }
    .btn-line:hover,.btn-line:focus{
      color:var(--color-primary-dark);
      border-color:rgba(201,67,117,.28);
      transform:translateY(-2px);
      box-shadow:0 12px 28px rgba(83,55,69,.08);
    }
    .quick-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:10px;
      margin:20px 0 26px;
    }
    .quick-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 14px;
      border-radius:var(--radius-pill);
      border:1px solid var(--color-border);
      background:rgba(255,255,255,.75);
      color:var(--color-muted);
      font-size:14px;
      font-weight:700;
    }
    .quick-chip:hover{color:var(--color-primary-dark);border-color:rgba(201,67,117,.25);transform:translateY(-2px)}
    .dot{
      width:8px;height:8px;border-radius:50%;
      display:inline-block;
      background:var(--color-green);
      box-shadow:0 0 0 4px rgba(49,168,121,.11);
      flex:none;
    }
    .dot.amber{background:var(--color-amber);box-shadow:0 0 0 4px rgba(217,154,38,.12)}
    .dot.pink{background:var(--color-primary);box-shadow:0 0 0 4px rgba(201,67,117,.12)}
    .hero-stats{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      max-width:860px;
      margin:18px auto 0;
    }
    .stat-card{
      text-align:left;
      padding:18px 20px;
      border:1px solid var(--color-border);
      background:rgba(255,255,255,.72);
      border-radius:22px;
    }
    .stat-card strong{
      display:block;
      font-size:24px;
      line-height:1.2;
      letter-spacing:-.03em;
    }
    .stat-card span{
      color:var(--color-muted);
      font-size:13px;
    }

    .directory-wrap{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
      align-items:stretch;
      margin-top:34px;
    }
    .topic-board{
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      background:#fff;
      padding:28px;
      box-shadow:var(--shadow-soft);
    }
    .topic-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      margin-top:22px;
    }
    .topic-card{
      padding:19px;
      border-radius:22px;
      border:1px solid var(--color-border);
      background:linear-gradient(180deg,#fff,#fffaf7);
      transition:all .22s ease;
      min-height:142px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .topic-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(201,67,117,.24);
    }
    .topic-card h3{
      margin:10px 0 8px;
      font-size:20px;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .topic-card p{margin:0;color:var(--color-muted);font-size:15px;line-height:1.72}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:var(--radius-pill);
      background:rgba(201,67,117,.08);
      color:var(--color-primary-dark);
      font-size:12px;
      font-weight:800;
    }
    .tag.violet{background:rgba(124,88,211,.09);color:#6042a8}
    .tag.green{background:rgba(49,168,121,.1);color:#207b58}
    .tag.amber{background:rgba(217,154,38,.12);color:#966817}
    .side-ticket{
      border:1px solid rgba(201,67,117,.16);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(160deg,rgba(255,255,255,.92),rgba(255,240,245,.9)),
        radial-gradient(circle at 88% 18%,rgba(244,125,97,.16),transparent 32%);
      padding:28px;
      box-shadow:var(--shadow-soft);
      position:relative;
      overflow:hidden;
    }
    .side-ticket h3{font-size:24px;margin:0 0 12px;font-weight:850;letter-spacing:-.03em}
    .mini-list{display:grid;gap:12px;margin:22px 0 0;padding:0;list-style:none}
    .mini-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:13px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.74);
      border:1px solid rgba(39,36,43,.08);
      color:var(--color-muted);
      font-size:14px;
    }

    .rec-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:16px;
      margin-top:32px;
    }
    .rec-card{
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      background:#fff;
      padding:26px;
      box-shadow:0 14px 40px rgba(83,55,69,.06);
      transition:all .22s ease;
    }
    .rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .rec-card.featured{
      background:
        linear-gradient(135deg,rgba(39,36,43,.94),rgba(87,54,76,.92)),
        radial-gradient(circle at 80% 10%,rgba(244,125,97,.22),transparent 34%);
      color:#fff;
      min-height:260px;
    }
    .rec-card h3{font-size:22px;font-weight:830;margin:15px 0 10px;letter-spacing:-.02em}
    .rec-card p{color:var(--color-muted);margin:0;font-size:15px}
    .rec-card.featured p{color:rgba(255,255,255,.78)}
    .rec-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:24px;
      color:var(--color-light);
      font-size:13px;
    }
    .rec-card.featured .rec-meta{color:rgba(255,255,255,.72)}

    .carousel-stage{
      margin-top:32px;
      border:1px solid var(--color-border);
      border-radius:32px;
      background:#fff;
      padding:22px;
      box-shadow:var(--shadow-soft);
    }
    .screen-card{
      min-height:300px;
      border-radius:26px;
      background:
        linear-gradient(180deg,#fffaf6,#fff),
        repeating-linear-gradient(0deg,rgba(39,36,43,.04) 0 1px,transparent 1px 36px);
      border:1px solid rgba(39,36,43,.1);
      padding:28px;
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:20px;
      align-items:center;
    }
    .mock-panel{
      border:1px solid rgba(39,36,43,.1);
      background:#fff;
      border-radius:22px;
      padding:18px;
      box-shadow:0 16px 38px rgba(83,55,69,.08);
    }
    .mock-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 0;
      border-bottom:1px dashed rgba(39,36,43,.12);
      color:var(--color-muted);
      font-size:14px;
    }
    .mock-row:last-child{border-bottom:0}
    .screen-card h3{font-weight:850;font-size:26px;letter-spacing:-.03em;margin:14px 0 10px}
    .screen-card p{color:var(--color-muted);margin:0}
    .carousel-control-prev,.carousel-control-next{
      width:44px;height:44px;top:auto;bottom:20px;
      border-radius:50%;
      background:#fff;
      border:1px solid var(--color-border);
      opacity:1;
      box-shadow:0 10px 24px rgba(83,55,69,.08);
    }
    .carousel-control-prev{left:auto;right:74px}
    .carousel-control-next{right:22px}
    .carousel-control-prev-icon,.carousel-control-next-icon{filter:invert(1);width:16px;height:16px}
    .carousel-indicators{
      margin-bottom:22px;
      left:22px;right:auto;margin-left:0;margin-right:0;
    }
    .carousel-indicators [data-bs-target]{
      width:22px;height:7px;border:0;border-radius:999px;
      background:rgba(201,67,117,.32);
      opacity:1;
    }
    .carousel-indicators .active{width:36px;background:var(--color-primary)}

    .requirements{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
      margin-top:30px;
    }
    .req-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:0 12px 34px rgba(83,55,69,.06);
    }
    .req-card h3{
      display:flex;align-items:center;gap:10px;
      margin:0 0 12px;
      font-size:19px;font-weight:830;
    }
    .req-card p{margin:0;color:var(--color-muted);font-size:15px}
    .req-line{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
      padding:12px 0;
      border-top:1px solid rgba(39,36,43,.08);
      font-size:14px;
      color:var(--color-muted);
    }
    .req-line:first-of-type{margin-top:14px}
    .req-line strong{color:var(--color-text);font-weight:800}

    .news-layout{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:22px;
      margin-top:32px;
    }
    .news-list,.recommend-panel{
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      background:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:112px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid rgba(39,36,43,.08);
    }
    .news-item:last-child{border-bottom:0}
    .news-date{
      padding:9px 11px;
      border-radius:16px;
      background:#fff7f1;
      color:var(--color-primary-dark);
      font-weight:850;
      text-align:center;
      font-size:13px;
    }
    .news-item h3{margin:0 0 6px;font-size:18px;font-weight:820}
    .news-item p{margin:0;color:var(--color-muted);font-size:14px;line-height:1.65}
    .news-item .arrow{
      width:34px;height:34px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(201,67,117,.08);
      color:var(--color-primary-dark);
      font-weight:900;
    }
    .news-item:hover{background:#fffaf7}
    .recommend-panel{padding:24px}
    .rank-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
    .rank-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:13px;
      border-radius:18px;
      border:1px solid rgba(39,36,43,.08);
      background:linear-gradient(180deg,#fff,#fffaf7);
    }
    .rank-no{
      width:28px;height:28px;border-radius:10px;
      background:var(--color-text);
      color:#fff;
      display:grid;place-items:center;
      font-size:13px;font-weight:850;flex:none;
    }
    .rank-list strong{display:block;font-size:15px;margin-bottom:2px}
    .rank-list span{color:var(--color-muted);font-size:13px;line-height:1.55}

    .reviews{
      columns:3 260px;
      column-gap:16px;
      margin-top:32px;
    }
    .review-card{
      break-inside:avoid;
      display:inline-block;
      width:100%;
      margin:0 0 16px;
      border:1px solid var(--color-border);
      background:#fff;
      border-radius:24px;
      padding:20px;
      box-shadow:0 12px 34px rgba(83,55,69,.06);
    }
    .review-head{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
    }
    .avatar{
      width:42px;height:42px;border-radius:50%;
      display:grid;place-items:center;
      color:#fff;
      font-weight:850;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      flex:none;
    }
    .review-head strong{display:block;font-size:15px}
    .review-head span{color:var(--color-light);font-size:12px}
    .review-card p{margin:0;color:var(--color-muted);font-size:15px;line-height:1.72}

    .download-panel{
      border:1px solid rgba(201,67,117,.18);
      border-radius:34px;
      background:
        linear-gradient(135deg,#fff,#fff2f0),
        radial-gradient(circle at 92% 14%,rgba(124,88,211,.14),transparent 32%);
      box-shadow:var(--shadow-soft);
      padding:34px;
      display:grid;
      grid-template-columns:1fr .92fr;
      gap:28px;
      align-items:center;
    }
    .version-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .version-cell{
      background:rgba(255,255,255,.76);
      border:1px solid rgba(39,36,43,.08);
      border-radius:18px;
      padding:15px;
    }
    .version-cell span{display:block;color:var(--color-light);font-size:12px;margin-bottom:4px}
    .version-cell strong{font-size:17px}
    .download-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:24px;
      align-items:start;
      margin-top:32px;
    }
    .faq-note{
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      background:#fff;
      padding:26px;
      box-shadow:var(--shadow-soft);
      position:sticky;
      top:98px;
    }
    .accordion{display:grid;gap:12px}
    .accordion-item{
      border:1px solid var(--color-border)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 10px 26px rgba(83,55,69,.04);
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:830;
      color:var(--color-text);
      background:#fff;
      box-shadow:none!important;
      line-height:1.55;
    }
    .accordion-button:not(.collapsed){
      color:var(--color-primary-dark);
      background:linear-gradient(90deg,rgba(201,67,117,.09),#fff);
      border-left:4px solid var(--color-primary);
    }
    .accordion-button:focus{box-shadow:var(--focus)!important}
    .accordion-body{
      padding:0 22px 22px 26px;
      color:var(--color-muted);
      line-height:1.82;
    }

    .share-panel{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      border:1px solid var(--color-border);
      border-radius:32px;
      background:#fff;
      padding:30px;
      box-shadow:var(--shadow-soft);
    }
    .share-actions{display:flex;gap:12px;flex-wrap:wrap}
    .share-box{
      display:flex;
      align-items:center;
      gap:12px;
      padding:13px 16px;
      border-radius:18px;
      border:1px solid var(--color-border);
      background:#fffaf7;
      font-weight:800;
      color:var(--color-muted);
    }
    .share-box:hover{color:var(--color-primary-dark);border-color:rgba(201,67,117,.26);transform:translateY(-2px)}

    .site-footer{
      padding:42px 0;
      border-top:1px solid var(--color-border);
      background:rgba(255,255,255,.55);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:850;
      margin-bottom:10px;
    }
    .footer-desc{
      color:var(--color-muted);
      margin:0;
      max-width:640px;
      font-size:14px;
    }
    .footer-links{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .footer-links a{
      color:var(--color-muted);
      font-weight:700;
      font-size:14px;
      padding:8px 10px;
      border-radius:var(--radius-pill);
    }
    .footer-links a:hover{color:var(--color-primary-dark);background:rgba(201,67,117,.07)}
    .copyright{
      margin-top:18px;
      padding-top:18px;
      border-top:1px solid rgba(39,36,43,.08);
      color:var(--color-light);
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }

    @media (max-width: 991.98px){
      .navbar-collapse{
        margin-top:14px;
        padding:12px 0 18px;
        border-top:1px solid var(--color-border);
        background:rgba(255,255,255,.88);
      }
      .navbar-nav{align-items:stretch}
      .nav-cta{margin-left:0;margin-top:6px;text-align:center}
      .hero-panel{padding:42px 22px 28px;border-radius:30px}
      .hero-search{flex-direction:column;border-radius:24px}
      .hero-search .btn-main{width:100%}
      .hero-stats,.requirements{grid-template-columns:1fr}
      .directory-wrap,.news-layout,.download-panel,.faq-wrap,.share-panel{grid-template-columns:1fr}
      .topic-grid,.rec-grid{grid-template-columns:1fr}
      .screen-card{grid-template-columns:1fr;min-height:auto}
      .faq-note{position:static}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width: 767.98px){
      .container-narrow{padding:0 16px}
      .section{padding:62px 0}
      .section-sm{padding:48px 0}
      .hero{padding:42px 0 46px}
      .hero h1{font-size:34px}
      .hero-lead,.section-desc{font-size:16px}
      .hero-stats{gap:10px}
      .stat-card{padding:15px}
      .topic-board,.side-ticket,.rec-card,.recommend-panel,.download-panel,.share-panel{padding:20px}
      .news-item{grid-template-columns:1fr;gap:10px}
      .news-date{width:max-content}
      .news-item .arrow{display:none}
      .version-grid{grid-template-columns:1fr}
      .download-actions .btn-main,.download-actions .btn-soft,.download-actions .btn-line{width:100%}
      .carousel-stage{padding:14px;border-radius:26px}
      .screen-card{padding:20px}
      .carousel-control-prev,.carousel-control-next{display:none}
      .carousel-indicators{position:static;margin:16px 0 0;justify-content:flex-start}
      .reviews{columns:1}
      .share-actions{width:100%}
      .share-box{width:100%;justify-content:center}
      .copyright{display:block}
    }
    @media (max-width: 520px){
      .navbar-brand{font-size:16px}
      .brand-mark{width:32px;height:32px}
      .hero-panel{padding:34px 16px 22px}
      .quick-links{justify-content:flex-start}
      .quick-chip{width:100%;justify-content:center}
      .topic-card{min-height:auto}
      .section-title{font-size:28px}
    }

/* roulang page: category2 */
:root{
      --color-primary:#b84a74;
      --color-primary-dark:#963a5d;
      --color-primary-soft:#f8e7ee;
      --color-coral:#e98262;
      --color-violet:#8e6bd8;
      --color-amber:#d89b2a;
      --color-green:#2fa66a;
      --color-bg:#fbf7f2;
      --color-bg-2:#fffdf9;
      --color-card:#ffffff;
      --color-text:#25212a;
      --color-muted:#6f6875;
      --color-light:#9a93a0;
      --color-border:rgba(37,33,42,.12);
      --shadow-sm:0 10px 28px rgba(67,46,54,.07);
      --shadow-md:0 18px 46px rgba(67,46,54,.11);
      --radius-sm:14px;
      --radius-md:20px;
      --radius-lg:28px;
      --radius-pill:999px;
      --container:1160px;
      --nav-height:76px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 8% 6%, rgba(184,74,116,.09), transparent 28%),
        radial-gradient(circle at 92% 18%, rgba(233,130,98,.11), transparent 28%),
        linear-gradient(180deg,#fffaf5 0%, var(--color-bg) 45%, #fffdf9 100%);
      line-height:1.78;
      font-size:16px;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(184,74,116,.22);
      outline-offset:3px;
      border-radius:12px;
    }
    p{margin:0;color:var(--color-muted)}
    h1,h2,h3,h4{margin:0;color:var(--color-text);letter-spacing:-.02em}
    .container-narrow{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .section{
      padding:82px 0;
      position:relative;
    }
    .section-tight{padding:58px 0}
    .section-title{
      max-width:760px;
      margin-bottom:30px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary-dark);
      background:rgba(184,74,116,.09);
      border:1px solid rgba(184,74,116,.13);
      border-radius:var(--radius-pill);
      padding:7px 12px;
      font-size:13px;
      font-weight:700;
      margin-bottom:14px;
    }
    .section-kicker::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--color-primary);
      box-shadow:0 0 0 4px rgba(184,74,116,.13);
    }
    .section-title h2{
      font-size:clamp(28px,3.2vw,38px);
      line-height:1.26;
      font-weight:800;
      margin-bottom:12px;
    }
    .section-title p{
      font-size:17px;
      line-height:1.85;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,253,249,.9);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(37,33,42,.08);
    }
    .site-header .navbar{
      min-height:var(--nav-height);
      padding:0;
    }
    .navbar-brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-size:19px;
      font-weight:800;
      color:var(--color-text);
      letter-spacing:-.01em;
      padding:0;
      white-space:nowrap;
    }
    .brand-mark{
      width:28px;
      height:28px;
      border-radius:10px;
      display:inline-block;
      background:
        radial-gradient(circle at 30% 30%, #fff 0 9%, transparent 10%),
        conic-gradient(from 135deg,#b84a74,#e98262,#d8a246,#8e6bd8,#b84a74);
      box-shadow:0 8px 18px rgba(184,74,116,.18);
      flex:none;
    }
    .navbar-nav{
      align-items:center;
      gap:4px;
    }
    .nav-link{
      position:relative;
      color:var(--color-muted);
      font-size:15px;
      font-weight:650;
      padding:11px 14px!important;
      border-radius:var(--radius-pill);
    }
    .nav-link:hover{
      color:var(--color-primary);
      background:rgba(184,74,116,.07);
    }
    .nav-link.active{
      color:var(--color-primary-dark);
      background:transparent;
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:16px;
      right:16px;
      bottom:5px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--color-primary),var(--color-coral));
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:9px 17px;
      margin-left:8px;
      border-radius:var(--radius-pill);
      color:#fff;
      font-weight:750;
      background:linear-gradient(135deg,var(--color-primary),var(--color-coral));
      box-shadow:0 10px 24px rgba(184,74,116,.2);
    }
    .nav-cta:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 15px 32px rgba(184,74,116,.28);
    }
    .navbar-toggler{
      border:1px solid var(--color-border);
      border-radius:14px;
      padding:8px 10px;
      box-shadow:none!important;
    }
    .navbar-toggler-icon{
      width:1.2em;
      height:1.2em;
      background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2837, 33, 42, 0.72%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M5 8h20M5 15h20M5 22h20'/%3e%3c/svg%3e");
    }

    .hero{
      padding:74px 0 44px;
      overflow:hidden;
    }
    .hero-shell{
      border:1px solid rgba(37,33,42,.09);
      border-radius:34px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.88),rgba(255,250,245,.78)),
        radial-gradient(circle at 85% 18%,rgba(184,74,116,.12),transparent 30%);
      box-shadow:var(--shadow-sm);
      padding:38px;
      position:relative;
    }
    .hero-shell::before{
      content:"";
      position:absolute;
      inset:18px auto auto 46%;
      width:120px;
      height:120px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(142,107,216,.14),transparent 68%);
      pointer-events:none;
    }
    .breadcrumb-lite{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      color:var(--color-light);
      font-size:14px;
      margin-bottom:20px;
    }
    .breadcrumb-lite a:hover{color:var(--color-primary)}
    .breadcrumb-lite span:last-child{color:var(--color-muted)}
    .hero h1{
      font-size:clamp(32px,5vw,52px);
      line-height:1.16;
      font-weight:850;
      max-width:780px;
      margin-bottom:18px;
    }
    .hero-lead{
      font-size:18px;
      line-height:1.9;
      max-width:720px;
      color:#5d5563;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:28px;
    }
    .btn-main,.btn-soft,.btn-line{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:12px 20px;
      border-radius:var(--radius-pill);
      font-weight:800;
      border:1px solid transparent;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
    }
    .btn-main{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-coral));
      box-shadow:0 14px 30px rgba(184,74,116,.24);
    }
    .btn-main:hover{
      color:#fff;
      transform:translateY(-3px);
      box-shadow:0 20px 42px rgba(184,74,116,.32);
      background:linear-gradient(135deg,var(--color-primary-dark),#df7453);
    }
    .btn-soft{
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
      border-color:rgba(184,74,116,.12);
    }
    .btn-soft:hover{
      color:var(--color-primary-dark);
      background:#fff;
      border-color:rgba(184,74,116,.25);
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
    }
    .btn-line{
      color:var(--color-muted);
      background:#fff;
      border-color:var(--color-border);
    }
    .btn-line:hover{
      color:var(--color-primary);
      border-color:rgba(184,74,116,.28);
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
    }
    .hero-side{
      display:grid;
      gap:14px;
      height:100%;
      align-content:center;
    }
    .compat-summary{
      border-radius:26px;
      background:#fff;
      border:1px solid var(--color-border);
      padding:22px;
      box-shadow:var(--shadow-sm);
    }
    .summary-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:16px;
    }
    .summary-top strong{font-size:18px}
    .status-chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:6px 10px;
      border-radius:999px;
      background:#eef9f2;
      color:#236f49;
      font-weight:750;
      font-size:13px;
      white-space:nowrap;
    }
    .dot{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--color-green);
      display:inline-block;
      flex:none;
    }
    .dot.amber{background:var(--color-amber)}
    .dot.gray{background:#b8b1bc}
    .dot.primary{background:var(--color-primary)}
    .mini-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .mini-list li{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding:12px 0;
      border-top:1px dashed rgba(37,33,42,.12);
      color:var(--color-muted);
    }
    .mini-list li:first-child{border-top:0}
    .mini-list b{
      color:var(--color-text);
      font-weight:760;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:16px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:var(--radius-pill);
      font-size:13px;
      font-weight:700;
      color:#655b67;
      border:1px solid rgba(37,33,42,.09);
      background:#fffaf6;
    }
    .tag.violet{background:#f0ebff;color:#6b4eb7}
    .tag.green{background:#eef9f2;color:#2b7650}
    .tag.amber{background:#fff5dc;color:#8a6018}
    .tag.pink{background:#f9eaf0;color:#9d4165}

    .table-panel{
      background:var(--color-card);
      border:1px solid var(--color-border);
      border-radius:28px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .compat-table{
      margin:0;
      color:var(--color-text);
      vertical-align:middle;
    }
    .compat-table thead th{
      background:#fff4ec;
      color:#4b424d;
      font-size:14px;
      padding:18px 20px;
      border-bottom:1px solid rgba(37,33,42,.1);
      font-weight:800;
      white-space:nowrap;
    }
    .compat-table tbody td{
      padding:20px;
      border-color:rgba(37,33,42,.08);
      color:var(--color-muted);
      min-width:160px;
    }
    .compat-table tbody td:first-child{
      color:var(--color-text);
      font-weight:800;
      min-width:150px;
    }
    .state{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:6px 10px;
      border-radius:999px;
      background:#f7f4ef;
      color:#655b67;
      font-size:13px;
      font-weight:750;
      white-space:nowrap;
    }
    .state.ok{background:#eef9f2;color:#236f49}
    .state.warn{background:#fff5dc;color:#865d15}
    .state.note{background:#f0ebff;color:#6048a9}

    .check-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:24px;
    }
    .check-card{
      background:rgba(255,255,255,.86);
      border:1px solid var(--color-border);
      border-radius:24px;
      padding:22px;
      box-shadow:var(--shadow-sm);
      transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    }
    .check-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-md);
      border-color:rgba(184,74,116,.18);
    }
    .check-card .head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:14px;
    }
    .check-card h3{
      font-size:20px;
      font-weight:820;
    }
    .icon-bubble{
      width:42px;
      height:42px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
      font-weight:900;
      flex:none;
    }
    .check-card p{
      line-height:1.82;
      margin-bottom:14px;
    }
    .check-card ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:9px;
    }
    .check-card li{
      display:flex;
      gap:9px;
      color:var(--color-muted);
      font-size:15px;
    }
    .check-card li::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--color-primary);
      margin-top:10px;
      flex:none;
    }

    .split-area{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);
      gap:24px;
      align-items:start;
    }
    .notice-stack{
      display:grid;
      gap:16px;
    }
    .notice-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:24px;
      padding:22px;
      box-shadow:var(--shadow-sm);
      position:relative;
      overflow:hidden;
    }
    .notice-card::before{
      content:"";
      position:absolute;
      left:0;
      top:20px;
      width:4px;
      height:42px;
      border-radius:999px;
      background:linear-gradient(180deg,var(--color-primary),var(--color-coral));
    }
    .notice-card h3{
      font-size:20px;
      font-weight:820;
      margin-bottom:8px;
    }
    .notice-card p{font-size:15.5px}
    .process-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:28px;
      padding:26px;
      box-shadow:var(--shadow-sm);
    }
    .process-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:14px;
    }
    .process-list li{
      display:grid;
      grid-template-columns:34px minmax(0,1fr);
      gap:13px;
      align-items:start;
    }
    .num{
      width:34px;
      height:34px;
      border-radius:13px;
      display:grid;
      place-items:center;
      font-weight:850;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-coral));
      box-shadow:0 10px 18px rgba(184,74,116,.18);
    }
    .process-list strong{
      display:block;
      font-size:16px;
      margin-bottom:2px;
    }
    .process-list span{
      color:var(--color-muted);
      font-size:14.5px;
      line-height:1.7;
    }

    .trouble-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .trouble-card{
      border-radius:24px;
      padding:24px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-sm);
    }
    .trouble-card h3{
      display:flex;
      align-items:center;
      gap:9px;
      font-size:20px;
      font-weight:820;
      margin-bottom:10px;
    }
    .trouble-card p{margin-bottom:14px}
    .solution-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .solution-list li{
      display:flex;
      gap:10px;
      color:var(--color-muted);
      padding-top:10px;
      border-top:1px dashed rgba(37,33,42,.1);
    }
    .solution-list li:first-child{border-top:0;padding-top:0}
    .solution-list .dot{margin-top:9px}

    .download-panel{
      background:
        linear-gradient(135deg,#fff,#fff7f0),
        radial-gradient(circle at 88% 12%,rgba(184,74,116,.16),transparent 28%);
      border:1px solid rgba(37,33,42,.1);
      border-radius:32px;
      padding:32px;
      box-shadow:var(--shadow-md);
      overflow:hidden;
      position:relative;
    }
    .download-panel::after{
      content:"";
      position:absolute;
      right:-34px;
      bottom:-42px;
      width:170px;
      height:170px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(233,130,98,.14),transparent 70%);
      pointer-events:none;
    }
    .download-meta{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
      margin:24px 0;
    }
    .meta-item{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(37,33,42,.09);
      border-radius:18px;
      padding:15px;
    }
    .meta-item span{
      display:block;
      color:var(--color-light);
      font-size:13px;
      margin-bottom:3px;
    }
    .meta-item strong{
      display:block;
      font-size:16px;
      color:var(--color-text);
    }
    .download-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
      position:relative;
      z-index:1;
    }
    .aux-link{
      color:var(--color-primary-dark);
      font-weight:760;
      padding:8px 2px;
      border-bottom:1px solid rgba(184,74,116,.25);
    }
    .aux-link:hover{
      color:var(--color-primary);
      border-color:var(--color-primary);
    }

    .accordion.compat-accordion{
      display:grid;
      gap:12px;
    }
    .compat-accordion .accordion-item{
      border:1px solid var(--color-border);
      border-radius:20px;
      overflow:hidden;
      background:#fff;
      box-shadow:0 8px 20px rgba(67,46,54,.05);
    }
    .compat-accordion .accordion-button{
      border:0;
      box-shadow:none;
      background:#fff;
      color:var(--color-text);
      font-weight:820;
      font-size:17px;
      padding:19px 22px;
      line-height:1.55;
    }
    .compat-accordion .accordion-button:not(.collapsed){
      color:var(--color-primary-dark);
      background:#fff8f3;
      box-shadow:none;
    }
    .compat-accordion .accordion-button::after{
      width:18px;
      height:18px;
      background-size:18px;
      filter:saturate(.5);
    }
    .compat-accordion .accordion-body{
      padding:0 22px 20px 22px;
      color:var(--color-muted);
      line-height:1.85;
      background:#fff8f3;
      border-left:4px solid var(--color-primary);
    }

    .site-footer{
      padding:46px 0 28px;
      background:#fffdf9;
      border-top:1px solid rgba(37,33,42,.09);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:30px;
      align-items:start;
    }
    .footer-brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-size:18px;
      font-weight:850;
      margin-bottom:12px;
    }
    .footer-desc{
      max-width:560px;
      font-size:14.5px;
      line-height:1.85;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px 18px;
    }
    .footer-links a{
      color:var(--color-muted);
      font-weight:700;
      font-size:14.5px;
      padding:6px 0;
    }
    .footer-links a:hover{color:var(--color-primary)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      margin-top:30px;
      padding-top:18px;
      border-top:1px solid rgba(37,33,42,.08);
      color:var(--color-light);
      font-size:13.5px;
    }

    @media (max-width: 991.98px){
      .container-narrow{width:min(100% - 32px, var(--container))}
      .site-header .navbar{padding:14px 0;min-height:auto}
      .navbar-collapse{
        margin-top:14px;
        padding:14px;
        background:#fff;
        border:1px solid var(--color-border);
        border-radius:20px;
        box-shadow:var(--shadow-sm);
      }
      .navbar-nav{align-items:stretch;gap:4px}
      .nav-link{padding:12px 14px!important}
      .nav-link.active::after{left:14px;right:auto;width:30px}
      .nav-cta{margin:8px 0 0;width:100%}
      .hero{padding:44px 0 30px}
      .hero-shell{padding:26px;border-radius:28px}
      .hero-side{margin-top:24px}
      .check-grid{grid-template-columns:1fr 1fr}
      .split-area{grid-template-columns:1fr}
      .download-meta{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (max-width: 767.98px){
      body{font-size:16px}
      .section{padding:58px 0}
      .section-tight{padding:44px 0}
      .hero-shell{padding:22px}
      .hero-lead{font-size:16px}
      .hero-actions,.download-actions{flex-direction:column;align-items:stretch}
      .btn-main,.btn-soft,.btn-line{width:100%}
      .table-panel{border-radius:22px}
      .compat-table thead th,.compat-table tbody td{padding:15px 14px}
      .check-grid,.trouble-grid{grid-template-columns:1fr}
      .download-panel{padding:24px;border-radius:26px}
      .download-meta{grid-template-columns:1fr}
      .copyright{flex-direction:column}
    }

    @media (max-width: 520px){
      .container-narrow{width:min(100% - 24px, var(--container))}
      .navbar-brand{font-size:17px}
      .brand-mark{width:25px;height:25px;border-radius:9px}
      .hero h1{font-size:31px}
      .section-title h2{font-size:27px}
      .check-card,.notice-card,.process-card,.trouble-card{padding:20px;border-radius:22px}
      .summary-top{align-items:flex-start;flex-direction:column}
      .mini-list li{flex-direction:column;gap:4px}
    }

/* roulang page: category1 */
:root {
      --color-primary: #c94f7c;
      --color-primary-dark: #a93e66;
      --color-secondary: #7d5cc7;
      --color-accent: #22a783;
      --color-warn: #d9962c;
      --color-ink: #2a2630;
      --color-muted: #746d7b;
      --color-soft: #faf6f2;
      --color-panel: #ffffff;
      --color-lilac: #f3edf9;
      --color-peach: #fff1e8;
      --color-mint: #edf8f4;
      --color-border: rgba(42, 38, 48, .12);
      --shadow-sm: 0 10px 30px rgba(60, 44, 70, .07);
      --shadow-md: 0 18px 48px rgba(60, 44, 70, .12);
      --radius-lg: 26px;
      --radius-md: 20px;
      --radius-sm: 14px;
      --container: 1160px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--color-ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(201, 79, 124, .08), transparent 28%),
        radial-gradient(circle at 88% 18%, rgba(34, 167, 131, .08), transparent 26%),
        linear-gradient(180deg, #fffaf6 0%, #f8f4ef 46%, #ffffff 100%);
      line-height: 1.8;
      text-rendering: optimizeLegibility;
    }

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

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

    button,
    input,
    textarea {
      font: inherit;
    }

    ::selection {
      background: rgba(201, 79, 124, .18);
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 250, 246, .9);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--color-border);
    }

    .navbar {
      min-height: 74px;
      padding: 0;
    }

    .navbar-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: var(--color-ink);
      font-weight: 800;
      font-size: 18px;
      letter-spacing: 0;
      white-space: normal;
      max-width: 62vw;
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      border-radius: 50%;
      background:
        radial-gradient(circle at 30% 32%, #fff 0 13%, transparent 14%),
        conic-gradient(from 20deg, #c94f7c, #ec8a56, #e8bd57, #22a783, #6aa8d8, #7d5cc7, #c94f7c);
      box-shadow: 0 8px 20px rgba(201, 79, 124, .22);
    }

    .navbar-nav {
      align-items: center;
      gap: 6px;
    }

    .nav-link {
      position: relative;
      padding: 10px 12px !important;
      color: var(--color-muted);
      font-size: 15px;
      font-weight: 650;
      border-radius: 999px;
    }

    .nav-link:hover,
    .nav-link:focus {
      color: var(--color-primary);
      background: rgba(201, 79, 124, .07);
    }

    .nav-link.active {
      color: var(--color-primary);
      background: rgba(201, 79, 124, .09);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 4px;
      width: 16px;
      height: 2px;
      border-radius: 999px;
      background: var(--color-primary);
      transform: translateX(-50%);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 9px 18px;
      margin-left: 8px;
      border-radius: 999px;
      color: #fff;
      font-weight: 750;
      background: var(--color-primary);
      box-shadow: 0 12px 26px rgba(201, 79, 124, .22);
    }

    .nav-cta:hover,
    .nav-cta:focus {
      color: #fff;
      background: var(--color-primary-dark);
      transform: translateY(-1px);
    }

    .navbar-toggler {
      border: 1px solid var(--color-border);
      border-radius: 12px;
      padding: 8px 10px;
      box-shadow: none;
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 4px rgba(201, 79, 124, .12);
    }

    .navbar-toggler-icon {
      width: 1.2em;
      height: 1.2em;
    }

    main {
      overflow: hidden;
    }

    .page-hero {
      padding: 86px 0 56px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(320px, .78fr);
      gap: 36px;
      align-items: stretch;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 8px 13px;
      border: 1px solid var(--color-border);
      border-radius: 999px;
      background: rgba(255, 255, 255, .72);
      color: var(--color-primary-dark);
      font-size: 14px;
      font-weight: 750;
      box-shadow: var(--shadow-sm);
    }

    .eyebrow::before,
    .status-dot {
      content: "";
      width: 8px;
      height: 8px;
      flex: 0 0 auto;
      border-radius: 50%;
      background: var(--color-accent);
      box-shadow: 0 0 0 5px rgba(34, 167, 131, .12);
    }

    h1,
    h2,
    h3 {
      margin: 0;
      color: var(--color-ink);
      letter-spacing: 0;
    }

    h1 {
      margin-top: 22px;
      max-width: 780px;
      font-size: clamp(32px, 5vw, 50px);
      line-height: 1.18;
      font-weight: 820;
    }

    .hero-lead {
      max-width: 720px;
      margin: 18px 0 0;
      color: var(--color-muted);
      font-size: 18px;
      line-height: 1.85;
    }

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

    .btn-soft,
    .btn-primary-custom,
    .btn-link-custom {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      border-radius: 999px;
      padding: 12px 21px;
      font-weight: 780;
      transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease, color .2s ease;
    }

    .btn-primary-custom {
      border: 1px solid var(--color-primary);
      color: #fff;
      background: var(--color-primary);
      box-shadow: 0 14px 30px rgba(201, 79, 124, .24);
    }

    .btn-primary-custom:hover,
    .btn-primary-custom:focus {
      color: #fff;
      background: var(--color-primary-dark);
      border-color: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 18px 40px rgba(201, 79, 124, .3);
    }

    .btn-soft {
      color: var(--color-ink);
      background: rgba(255, 255, 255, .78);
      border: 1px solid var(--color-border);
    }

    .btn-soft:hover,
    .btn-soft:focus {
      color: var(--color-primary);
      border-color: rgba(201, 79, 124, .35);
      background: #fff;
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .btn-link-custom {
      color: var(--color-primary-dark);
      padding-inline: 4px;
      min-height: 44px;
    }

    .btn-link-custom:hover,
    .btn-link-custom:focus {
      color: var(--color-primary);
      transform: translateX(2px);
    }

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

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 12px;
      border-radius: 999px;
      border: 1px solid var(--color-border);
      color: var(--color-muted);
      background: rgba(255, 255, 255, .72);
      font-size: 13px;
      font-weight: 700;
      white-space: nowrap;
    }

    .tag.pink {
      color: var(--color-primary-dark);
      background: rgba(201, 79, 124, .08);
      border-color: rgba(201, 79, 124, .16);
    }

    .tag.green {
      color: #16785f;
      background: rgba(34, 167, 131, .09);
      border-color: rgba(34, 167, 131, .2);
    }

    .tag.amber {
      color: #936113;
      background: rgba(217, 150, 44, .1);
      border-color: rgba(217, 150, 44, .22);
    }

    .guide-panel {
      position: relative;
      padding: 24px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .82);
      box-shadow: var(--shadow-md);
    }

    .guide-panel::before {
      content: "";
      position: absolute;
      inset: 12px 12px auto auto;
      width: 82px;
      height: 82px;
      border-radius: 24px;
      background: linear-gradient(135deg, rgba(201, 79, 124, .12), rgba(34, 167, 131, .1));
      transform: rotate(8deg);
      z-index: -1;
    }

    .panel-title {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: start;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--color-border);
    }

    .panel-title h2 {
      font-size: 22px;
      line-height: 1.35;
      font-weight: 800;
    }

    .panel-title span:last-child {
      flex: 0 0 auto;
    }

    .mini-flow {
      display: grid;
      gap: 13px;
      margin-top: 18px;
    }

    .mini-item {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 12px;
      padding: 14px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid var(--color-border);
    }

    .mini-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      border-radius: 12px;
      color: #fff;
      background: var(--color-primary);
      font-weight: 800;
      font-size: 14px;
    }

    .mini-item strong {
      display: block;
      line-height: 1.35;
      font-size: 16px;
      margin-bottom: 3px;
    }

    .mini-item p {
      margin: 0;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .section {
      padding: 76px 0;
    }

    .section.alt {
      background: rgba(255, 255, 255, .58);
      border-top: 1px solid rgba(42, 38, 48, .07);
      border-bottom: 1px solid rgba(42, 38, 48, .07);
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 30px;
    }

    .section-head.center {
      margin-inline: auto;
      text-align: center;
    }

    .section-kicker {
      display: inline-flex;
      margin-bottom: 12px;
      color: var(--color-primary-dark);
      font-size: 14px;
      font-weight: 780;
    }

    .section h2 {
      font-size: clamp(27px, 3.5vw, 36px);
      line-height: 1.28;
      font-weight: 820;
    }

    .section-desc {
      margin: 14px 0 0;
      color: var(--color-muted);
      font-size: 17px;
      line-height: 1.85;
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 28px;
      align-items: start;
    }

    .timeline {
      position: relative;
      display: grid;
      gap: 18px;
    }

    .timeline::before {
      content: "";
      position: absolute;
      top: 20px;
      bottom: 20px;
      left: 26px;
      width: 1px;
      background: linear-gradient(180deg, rgba(201, 79, 124, .25), rgba(34, 167, 131, .25));
    }

    .step-card {
      position: relative;
      display: grid;
      grid-template-columns: 54px 1fr;
      gap: 18px;
      padding: 22px;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .86);
      box-shadow: var(--shadow-sm);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .step-card:hover {
      transform: translateY(-3px);
      border-color: rgba(201, 79, 124, .24);
      box-shadow: var(--shadow-md);
    }

    .step-index {
      position: relative;
      z-index: 2;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 54px;
      height: 54px;
      border-radius: 18px;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      box-shadow: 0 12px 24px rgba(125, 92, 199, .18);
      font-weight: 850;
      font-size: 18px;
    }

    .step-body h3 {
      font-size: 21px;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 8px;
    }

    .step-body p {
      margin: 0 0 12px;
      color: var(--color-muted);
      font-size: 16px;
      line-height: 1.8;
    }

    .side-stack {
      position: sticky;
      top: 96px;
      display: grid;
      gap: 16px;
    }

    .side-card,
    .info-card,
    .notice-card,
    .cta-panel {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .86);
      box-shadow: var(--shadow-sm);
    }

    .side-card {
      padding: 22px;
    }

    .side-card h3 {
      font-size: 19px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .side-list {
      display: grid;
      gap: 11px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .side-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--color-muted);
      font-size: 15px;
      line-height: 1.65;
    }

    .side-list .status-dot {
      margin-top: 9px;
      width: 7px;
      height: 7px;
    }

    .side-actions {
      display: grid;
      gap: 10px;
      margin-top: 18px;
    }

    .side-actions .btn-primary-custom,
    .side-actions .btn-soft {
      width: 100%;
      min-height: 46px;
    }

    .check-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      margin-top: 28px;
    }

    .info-card {
      padding: 22px;
      min-height: 100%;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .info-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(201, 79, 124, .22);
    }

    .info-top {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: center;
      margin-bottom: 14px;
    }

    .icon-pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 16px;
      background: var(--color-lilac);
      color: var(--color-primary-dark);
      font-weight: 850;
    }

    .info-card:nth-child(2) .icon-pill {
      background: var(--color-mint);
      color: #16785f;
    }

    .info-card:nth-child(3) .icon-pill {
      background: var(--color-peach);
      color: #a45d22;
    }

    .info-card h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .info-card p {
      margin: 0;
      color: var(--color-muted);
      font-size: 15px;
      line-height: 1.75;
    }

    .route-board {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 24px;
      align-items: stretch;
      margin-top: 26px;
    }

    .notice-card {
      padding: 26px;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .92), rgba(255, 241, 232, .72));
    }

    .notice-card h3 {
      font-size: 22px;
      font-weight: 820;
      margin-bottom: 12px;
    }

    .notice-card p {
      margin: 0;
      color: var(--color-muted);
      line-height: 1.85;
    }

    .topic-list {
      display: grid;
      gap: 12px;
      padding: 0;
      margin: 20px 0 0;
      list-style: none;
    }

    .topic-list li {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: center;
      padding: 13px 14px;
      border: 1px solid var(--color-border);
      border-radius: 16px;
      background: rgba(255, 255, 255, .7);
    }

    .topic-list strong {
      font-size: 15px;
      line-height: 1.45;
    }

    .topic-list span {
      flex: 0 0 auto;
    }

    .matrix {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .matrix-item {
      padding: 18px;
      border-radius: 20px;
      border: 1px solid var(--color-border);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .matrix-item strong {
      display: block;
      margin-bottom: 8px;
      font-size: 17px;
    }

    .matrix-item p {
      margin: 0;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .accordion {
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      overflow: hidden;
      border: 1px solid var(--color-border) !important;
      border-radius: 18px !important;
      background: rgba(255, 255, 255, .84);
      box-shadow: var(--shadow-sm);
    }

    .accordion-button {
      padding: 18px 20px;
      color: var(--color-ink);
      background: transparent;
      font-weight: 800;
      line-height: 1.5;
      box-shadow: none !important;
    }

    .accordion-button:not(.collapsed) {
      color: var(--color-primary-dark);
      background: rgba(201, 79, 124, .07);
      border-left: 4px solid var(--color-primary);
    }

    .accordion-button:focus {
      border-color: transparent;
      box-shadow: 0 0 0 4px rgba(201, 79, 124, .12) !important;
    }

    .accordion-body {
      padding: 0 20px 20px 24px;
      color: var(--color-muted);
      line-height: 1.85;
    }

    .download-section {
      padding: 78px 0 90px;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: 32px;
      background:
        linear-gradient(135deg, rgba(255, 255, 255, .92), rgba(243, 237, 249, .84)),
        #fff;
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      right: -42px;
      bottom: -46px;
      width: 170px;
      height: 170px;
      border-radius: 46px;
      background: conic-gradient(from 20deg, rgba(201, 79, 124, .14), rgba(34, 167, 131, .13), rgba(125, 92, 199, .13), rgba(201, 79, 124, .14));
      transform: rotate(12deg);
    }

    .cta-content {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 26px;
      align-items: center;
    }

    .cta-panel h2 {
      font-size: clamp(26px, 3.2vw, 36px);
      font-weight: 830;
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .cta-panel p {
      margin: 0;
      color: var(--color-muted);
      font-size: 16px;
      line-height: 1.85;
    }

    .version-box {
      display: grid;
      gap: 10px;
      padding: 18px;
      border: 1px solid var(--color-border);
      border-radius: 20px;
      background: rgba(255, 255, 255, .78);
    }

    .version-row {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      color: var(--color-muted);
      font-size: 14px;
      border-bottom: 1px dashed rgba(42, 38, 48, .12);
      padding-bottom: 8px;
    }

    .version-row:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .version-row strong {
      color: var(--color-ink);
      font-weight: 780;
      text-align: right;
    }

    .site-footer {
      padding: 44px 0 30px;
      border-top: 1px solid var(--color-border);
      background: rgba(255, 255, 255, .74);
    }

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

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      font-size: 18px;
      font-weight: 820;
      margin-bottom: 12px;
    }

    .footer-desc {
      max-width: 560px;
      margin: 0;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
      max-width: 420px;
    }

    .footer-links a {
      padding: 8px 12px;
      border-radius: 999px;
      color: var(--color-muted);
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 700;
    }

    .footer-links a:hover,
    .footer-links a:focus {
      color: var(--color-primary);
      border-color: rgba(201, 79, 124, .18);
      background: rgba(201, 79, 124, .06);
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 28px;
      padding-top: 22px;
      border-top: 1px solid rgba(42, 38, 48, .1);
      color: var(--color-muted);
      font-size: 13px;
    }

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

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

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

    @media (max-width: 991.98px) {
      .navbar {
        min-height: 68px;
      }

      .navbar-collapse {
        margin-top: 12px;
        padding: 10px 0 18px;
        border-top: 1px solid var(--color-border);
      }

      .navbar-nav {
        align-items: stretch;
        gap: 8px;
      }

      .nav-link {
        padding: 12px 14px !important;
      }

      .nav-link.active::after {
        left: 14px;
        transform: none;
      }

      .nav-cta {
        margin: 4px 0 0;
        width: 100%;
      }
    }

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

      .page-hero {
        padding: 58px 0 38px;
      }

      .section,
      .download-section {
        padding: 56px 0;
      }

      .hero-lead,
      .section-desc {
        font-size: 16px;
      }

      .guide-panel,
      .cta-panel {
        padding: 22px;
        border-radius: 22px;
      }

      .step-card {
        grid-template-columns: 44px 1fr;
        gap: 14px;
        padding: 18px;
      }

      .step-index {
        width: 44px;
        height: 44px;
        border-radius: 15px;
        font-size: 16px;
      }

      .timeline::before {
        left: 22px;
      }

      .side-stack,
      .check-grid,
      .matrix {
        grid-template-columns: 1fr;
      }

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

      .btn-primary-custom,
      .btn-soft,
      .btn-link-custom {
        width: 100%;
      }

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

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

    @media (max-width: 520px) {
      .navbar-brand {
        font-size: 16px;
        max-width: 72vw;
      }

      h1 {
        font-size: 32px;
      }

      .panel-title {
        display: grid;
      }

      .topic-list li,
      .version-row {
        align-items: flex-start;
        flex-direction: column;
      }

      .copyright {
        display: grid;
      }
    }

/* roulang page: category3 */
:root{
      --color-primary:#c94b7c;
      --color-primary-dark:#a93663;
      --color-primary-soft:#fff0f5;
      --color-coral:#f07962;
      --color-violet:#8f6adf;
      --color-mint:#35aa87;
      --color-amber:#d99a24;
      --color-ink:#27232a;
      --color-text:#45404a;
      --color-muted:#746d79;
      --color-subtle:#9a929d;
      --color-bg:#fbf7f1;
      --color-panel:#fffdf9;
      --color-panel-2:#f5efe7;
      --color-line:rgba(39,35,42,.12);
      --shadow-sm:0 10px 26px rgba(68,45,54,.07);
      --shadow-md:0 18px 48px rgba(68,45,54,.11);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
      --focus:0 0 0 4px rgba(201,75,124,.14);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(240,121,98,.12), transparent 30%),
        radial-gradient(circle at 85% 14%, rgba(143,106,223,.10), transparent 28%),
        linear-gradient(180deg,#fffaf4 0%,var(--color-bg) 48%,#fffdf9 100%);
      line-height:1.8;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
      outline:none;
      box-shadow:var(--focus);
    }
    .container-narrow{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,253,249,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--color-line);
    }
    .site-header .navbar{
      min-height:76px;
      padding:0;
    }
    .navbar-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      color:var(--color-ink);
      letter-spacing:-.02em;
      font-size:18px;
      white-space:nowrap;
      margin:0;
    }
    .brand-mark{
      width:32px;
      height:32px;
      border-radius:11px;
      display:inline-block;
      background:
        radial-gradient(circle at 30% 25%, #fff 0 12%, transparent 13%),
        conic-gradient(from 140deg,#c94b7c,#f07962,#d99a24,#35aa87,#8f6adf,#c94b7c);
      box-shadow:0 8px 20px rgba(201,75,124,.22);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:8px;
      border-radius:7px;
      background:rgba(255,253,249,.78);
      border:1px solid rgba(255,255,255,.7);
    }
    .navbar-nav{
      align-items:center;
      gap:4px;
    }
    .nav-link{
      color:var(--color-muted);
      padding:12px 14px!important;
      border-radius:999px;
      font-size:15px;
      position:relative;
      line-height:1.2;
    }
    .nav-link:hover{
      color:var(--color-primary);
      background:rgba(201,75,124,.06);
    }
    .nav-link.active{
      color:var(--color-ink);
      font-weight:700;
      background:#fff;
      box-shadow:inset 0 0 0 1px var(--color-line);
    }
    .nav-link.active:after{
      content:"";
      position:absolute;
      left:50%;
      bottom:5px;
      width:18px;
      height:2px;
      border-radius:999px;
      transform:translateX(-50%);
      background:linear-gradient(90deg,var(--color-primary),var(--color-coral));
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:10px 18px;
      margin-left:8px;
      border-radius:999px;
      color:#fff;
      font-weight:700;
      background:linear-gradient(135deg,var(--color-primary),var(--color-coral));
      box-shadow:0 12px 24px rgba(201,75,124,.22);
    }
    .nav-cta:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 16px 30px rgba(201,75,124,.28);
    }
    .navbar-toggler{
      border:1px solid var(--color-line);
      border-radius:14px;
      padding:9px 11px;
      background:#fff;
    }
    .navbar-toggler:focus{box-shadow:var(--focus)}
    .navbar-toggler-icon{
      width:1.25em;
      height:1.25em;
      background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2839,35,42,.72%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M6 8h18M6 15h18M6 22h18'/%3e%3c/svg%3e");
    }
    main{position:relative}
    .section{
      padding:86px 0;
      position:relative;
    }
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary-dark);
      font-size:14px;
      font-weight:800;
      background:rgba(201,75,124,.08);
      border:1px solid rgba(201,75,124,.14);
      border-radius:999px;
      padding:7px 12px;
      margin-bottom:18px;
    }
    .status-dot{
      width:8px;
      height:8px;
      border-radius:999px;
      display:inline-block;
      background:var(--color-mint);
      box-shadow:0 0 0 4px rgba(53,170,135,.13);
      flex:0 0 auto;
    }
    .status-dot.amber{background:var(--color-amber);box-shadow:0 0 0 4px rgba(217,154,36,.15)}
    .status-dot.gray{background:#aaa3ad;box-shadow:0 0 0 4px rgba(116,109,121,.12)}
    .page-hero{
      padding:78px 0 54px;
      border-bottom:1px solid var(--color-line);
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(360px,.78fr);
      gap:34px;
      align-items:stretch;
    }
    .hero-copy{
      padding:18px 0;
    }
    h1,h2,h3{
      color:var(--color-ink);
      letter-spacing:-.035em;
      margin:0;
    }
    h1{
      font-size:clamp(32px,5vw,52px);
      line-height:1.16;
      font-weight:850;
      max-width:760px;
    }
    .hero-lead{
      font-size:18px;
      line-height:1.86;
      color:var(--color-muted);
      margin:22px 0 0;
      max-width:760px;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .soft-tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border:1px solid var(--color-line);
      background:rgba(255,255,255,.66);
      color:var(--color-muted);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:700;
      line-height:1.2;
    }
    .soft-tag.pink{background:rgba(201,75,124,.08);color:var(--color-primary-dark);border-color:rgba(201,75,124,.15)}
    .soft-tag.green{background:rgba(53,170,135,.08);color:#287f68;border-color:rgba(53,170,135,.15)}
    .soft-tag.orange{background:rgba(240,121,98,.09);color:#aa553f;border-color:rgba(240,121,98,.18)}
    .hero-actions{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:14px;
      margin-top:32px;
    }
    .btn-brand,.btn-ghost,.btn-text{
      min-height:48px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border-radius:999px;
      padding:12px 20px;
      font-weight:800;
      line-height:1.2;
      border:1px solid transparent;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
    }
    .btn-brand{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-coral));
      box-shadow:0 16px 30px rgba(201,75,124,.24);
    }
    .btn-brand:hover{
      color:#fff;
      transform:translateY(-3px);
      background:linear-gradient(135deg,var(--color-primary-dark),#df674f);
      box-shadow:0 20px 40px rgba(201,75,124,.30);
    }
    .btn-ghost{
      color:var(--color-ink);
      background:#fff;
      border-color:var(--color-line);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost:hover{
      color:var(--color-primary);
      border-color:rgba(201,75,124,.32);
      transform:translateY(-2px);
      box-shadow:var(--shadow-md);
    }
    .btn-text{
      color:var(--color-muted);
      padding-left:8px;
      padding-right:8px;
      background:transparent;
    }
    .btn-text:hover{color:var(--color-primary);transform:translateX(2px)}
    .preview-card{
      background:linear-gradient(160deg,#fffdf9,#f9efe8);
      border:1px solid var(--color-line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-md);
      overflow:hidden;
      position:relative;
      min-height:100%;
    }
    .preview-cover{
      padding:24px;
      min-height:230px;
      background:
        linear-gradient(135deg,rgba(201,75,124,.12),rgba(240,121,98,.07)),
        radial-gradient(circle at 88% 18%,rgba(143,106,223,.16),transparent 34%);
      border-bottom:1px solid var(--color-line);
      position:relative;
    }
    .preview-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:28px;
    }
    .live-label{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid rgba(201,75,124,.15);
      color:var(--color-primary-dark);
      font-weight:800;
      font-size:13px;
      box-shadow:0 8px 18px rgba(68,45,54,.07);
    }
    .preview-date{
      font-size:13px;
      color:var(--color-muted);
      font-weight:700;
    }
    .cover-title{
      font-size:24px;
      line-height:1.35;
      font-weight:850;
      color:var(--color-ink);
      max-width:360px;
    }
    .cover-desc{
      margin:12px 0 0;
      color:var(--color-muted);
      line-height:1.75;
      max-width:370px;
    }
    .countdown{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      padding:18px;
    }
    .time-box{
      background:#fff;
      border:1px solid var(--color-line);
      border-radius:18px;
      padding:15px 10px;
      text-align:center;
    }
    .time-box strong{
      display:block;
      color:var(--color-ink);
      font-size:26px;
      line-height:1;
      letter-spacing:-.03em;
    }
    .time-box span{
      display:block;
      margin-top:7px;
      color:var(--color-subtle);
      font-size:13px;
      font-weight:700;
    }
    .remind-panel{
      margin:0 18px 18px;
      padding:18px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--color-line);
    }
    .mini-form{
      display:flex;
      gap:10px;
      margin-top:12px;
    }
    .mini-form input{
      flex:1;
      min-width:0;
      height:46px;
      border-radius:999px;
      border:1px solid var(--color-line);
      padding:0 15px;
      color:var(--color-ink);
      background:#fffdf9;
    }
    .mini-form input:focus{
      border-color:rgba(201,75,124,.5);
      box-shadow:var(--focus);
      outline:none;
    }
    .mini-form button{
      height:46px;
      white-space:nowrap;
      border:0;
      border-radius:999px;
      padding:0 16px;
      color:#fff;
      font-weight:800;
      background:var(--color-primary);
    }
    .mini-form button:hover{background:var(--color-primary-dark)}
    .section-head{
      display:grid;
      grid-template-columns:minmax(0,.82fr) minmax(260px,.38fr);
      gap:30px;
      align-items:end;
      margin-bottom:30px;
    }
    .section-head h2{
      font-size:clamp(28px,3.4vw,38px);
      line-height:1.24;
      font-weight:850;
    }
    .section-head p{
      margin:0;
      color:var(--color-muted);
      line-height:1.85;
    }
    .topic-shell{
      display:grid;
      grid-template-columns:270px minmax(0,1fr);
      gap:24px;
      align-items:start;
    }
    .anchor-card{
      position:sticky;
      top:98px;
      background:rgba(255,253,249,.88);
      border:1px solid var(--color-line);
      border-radius:var(--radius-lg);
      padding:16px;
      box-shadow:var(--shadow-sm);
    }
    .anchor-title{
      font-size:14px;
      color:var(--color-ink);
      font-weight:850;
      padding:8px 10px 12px;
      border-bottom:1px solid var(--color-line);
      margin-bottom:8px;
    }
    .anchor-list{
      display:flex;
      flex-direction:column;
      gap:6px;
    }
    .anchor-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:11px 12px;
      border-radius:16px;
      color:var(--color-muted);
      font-weight:700;
      font-size:14px;
    }
    .anchor-list a:hover,.anchor-list a.active{
      color:var(--color-primary-dark);
      background:rgba(201,75,124,.08);
    }
    .anchor-list em{
      font-style:normal;
      color:var(--color-subtle);
      font-size:12px;
      background:#fff;
      border:1px solid var(--color-line);
      border-radius:999px;
      padding:2px 8px;
    }
    .faq-groups{
      display:flex;
      flex-direction:column;
      gap:22px;
    }
    .faq-group{
      background:rgba(255,253,249,.82);
      border:1px solid var(--color-line);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow-sm);
      scroll-margin-top:100px;
    }
    .group-heading{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .group-heading h3{
      font-size:22px;
      font-weight:850;
      line-height:1.35;
    }
    .group-heading p{
      margin:8px 0 0;
      color:var(--color-muted);
      line-height:1.75;
    }
    .accordion{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .accordion-item{
      border:1px solid var(--color-line)!important;
      border-radius:20px!important;
      overflow:hidden;
      background:#fff;
    }
    .accordion-button{
      padding:18px 20px;
      color:var(--color-ink);
      font-weight:800;
      background:#fff;
      box-shadow:none!important;
      line-height:1.55;
    }
    .accordion-button:not(.collapsed){
      color:var(--color-primary-dark);
      background:linear-gradient(90deg,rgba(201,75,124,.09),rgba(255,253,249,.96));
      border-left:4px solid var(--color-primary);
    }
    .accordion-button:after{
      width:24px;
      height:24px;
      border-radius:50%;
      background-color:rgba(201,75,124,.08);
      background-position:center;
      background-size:14px;
      padding:12px;
    }
    .accordion-body{
      padding:0 20px 20px 24px;
      color:var(--color-muted);
      line-height:1.85;
      background:#fff;
    }
    .update-board{
      background:linear-gradient(180deg,rgba(245,239,231,.72),rgba(255,253,249,.86));
      border-top:1px solid var(--color-line);
      border-bottom:1px solid var(--color-line);
    }
    .updates{
      display:grid;
      grid-template-columns:1fr;
      gap:14px;
    }
    .update-item{
      display:grid;
      grid-template-columns:150px minmax(0,1fr) 150px;
      gap:20px;
      align-items:center;
      background:#fff;
      border:1px solid var(--color-line);
      border-radius:24px;
      padding:18px 20px;
      box-shadow:var(--shadow-sm);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .update-item:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-md);
      border-color:rgba(201,75,124,.22);
    }
    .update-date{
      color:var(--color-muted);
      font-weight:800;
      font-size:14px;
    }
    .update-main h3{
      font-size:19px;
      font-weight:850;
      margin-bottom:5px;
    }
    .update-main p{
      margin:0;
      color:var(--color-muted);
      line-height:1.75;
    }
    .version-badge{
      justify-self:end;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(53,170,135,.08);
      color:#287f68;
      border:1px solid rgba(53,170,135,.16);
      font-weight:800;
      font-size:13px;
      white-space:nowrap;
    }
    .notice-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:24px;
    }
    .notice-card{
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-sm);
    }
    .notice-card h3{
      font-size:19px;
      font-weight:850;
      margin:12px 0 8px;
    }
    .notice-card p{
      margin:0;
      color:var(--color-muted);
      line-height:1.78;
    }
    .icon-line{
      width:42px;
      height:42px;
      border-radius:15px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:rgba(201,75,124,.08);
      color:var(--color-primary);
      font-weight:900;
      font-size:20px;
    }
    .feedback-wrap{
      display:grid;
      grid-template-columns:minmax(0,.82fr) minmax(360px,.58fr);
      gap:24px;
      align-items:stretch;
    }
    .feedback-info,.feedback-form{
      background:rgba(255,253,249,.9);
      border:1px solid var(--color-line);
      border-radius:var(--radius-lg);
      padding:28px;
      box-shadow:var(--shadow-sm);
    }
    .feedback-info h2{
      font-size:clamp(28px,3.2vw,38px);
      line-height:1.25;
      font-weight:850;
      margin-bottom:14px;
    }
    .feedback-info p{
      color:var(--color-muted);
      margin:0 0 18px;
      line-height:1.86;
    }
    .feedback-tips{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .tip-row{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--color-line);
    }
    .tip-row strong{
      display:block;
      color:var(--color-ink);
      line-height:1.4;
      margin-bottom:3px;
    }
    .tip-row span{
      color:var(--color-muted);
      font-size:14px;
      line-height:1.65;
    }
    .form-label{
      font-weight:800;
      color:var(--color-ink);
      margin-bottom:8px;
      font-size:14px;
    }
    .form-control,.form-select{
      min-height:50px;
      border-radius:16px;
      border:1px solid var(--color-line);
      background:#fffdf9;
      color:var(--color-ink);
      padding:12px 14px;
      box-shadow:none;
    }
    textarea.form-control{min-height:132px;resize:vertical}
    .form-control:focus,.form-select:focus{
      border-color:rgba(201,75,124,.55);
      box-shadow:var(--focus);
      background:#fff;
    }
    .form-note{
      color:var(--color-subtle);
      font-size:13px;
      line-height:1.65;
      margin-top:12px;
    }
    .download-panel{
      border-radius:32px;
      padding:32px;
      background:
        radial-gradient(circle at 82% 20%,rgba(240,121,98,.18),transparent 32%),
        linear-gradient(135deg,#fff,#fff2f6);
      border:1px solid rgba(201,75,124,.16);
      box-shadow:var(--shadow-md);
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:24px;
      align-items:center;
    }
    .download-panel h2{
      font-size:clamp(28px,3.2vw,40px);
      line-height:1.25;
      font-weight:850;
      margin-bottom:10px;
    }
    .download-panel p{
      margin:0;
      color:var(--color-muted);
      max-width:720px;
      line-height:1.82;
    }
    .download-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .download-actions{
      display:flex;
      flex-direction:column;
      gap:12px;
      min-width:210px;
    }
    .site-footer{
      border-top:1px solid var(--color-line);
      background:rgba(255,253,249,.86);
      padding:42px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:34px;
      align-items:start;
    }
    .footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      color:var(--color-ink);
      font-weight:850;
      margin-bottom:12px;
    }
    .footer-desc{
      max-width:620px;
      color:var(--color-muted);
      margin:0;
      line-height:1.8;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
      max-width:430px;
    }
    .footer-links a{
      padding:8px 11px;
      border-radius:999px;
      color:var(--color-muted);
      border:1px solid transparent;
      font-weight:700;
      font-size:14px;
    }
    .footer-links a:hover{
      color:var(--color-primary);
      background:rgba(201,75,124,.07);
      border-color:rgba(201,75,124,.12);
    }
    .copyright{
      margin-top:30px;
      padding-top:18px;
      border-top:1px solid var(--color-line);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:var(--color-subtle);
      font-size:13px;
    }
    @media (max-width: 1024px){
      .hero-grid,.feedback-wrap{
        grid-template-columns:1fr;
      }
      .topic-shell{
        grid-template-columns:1fr;
      }
      .anchor-card{
        position:relative;
        top:auto;
        overflow:hidden;
      }
      .anchor-list{
        flex-direction:row;
        overflow-x:auto;
        padding-bottom:4px;
        scrollbar-width:thin;
      }
      .anchor-list a{
        flex:0 0 auto;
        white-space:nowrap;
      }
      .notice-grid{
        grid-template-columns:1fr 1fr;
      }
      .download-panel{
        grid-template-columns:1fr;
      }
      .download-actions{
        flex-direction:row;
        min-width:0;
      }
    }
    @media (max-width: 991.98px){
      .site-header .navbar{
        min-height:68px;
      }
      .navbar-collapse{
        margin-top:12px;
        padding:12px 0 18px;
        border-top:1px solid var(--color-line);
        background:rgba(255,253,249,.96);
      }
      .navbar-nav{
        align-items:stretch;
        gap:6px;
      }
      .nav-link{
        padding:12px 14px!important;
      }
      .nav-link.active:after{display:none}
      .nav-cta{
        margin:6px 0 0;
        width:100%;
      }
    }
    @media (max-width: 768px){
      .container-narrow{
        width:min(100% - 28px,var(--container));
      }
      .page-hero{
        padding:56px 0 38px;
      }
      .section{
        padding:62px 0;
      }
      .section-tight{
        padding:48px 0;
      }
      .hero-lead{
        font-size:16px;
      }
      .hero-actions,.download-actions{
        flex-direction:column;
        align-items:stretch;
      }
      .btn-brand,.btn-ghost,.btn-text{
        width:100%;
      }
      .section-head{
        grid-template-columns:1fr;
        gap:14px;
      }
      .update-item{
        grid-template-columns:1fr;
        gap:8px;
      }
      .version-badge{
        justify-self:start;
      }
      .notice-grid{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
      .footer-links{
        justify-content:flex-start;
      }
      .mini-form{
        flex-direction:column;
      }
      .mini-form button{
        width:100%;
      }
      .countdown{
        padding:14px;
      }
      .time-box strong{
        font-size:23px;
      }
      .faq-group,.feedback-info,.feedback-form,.download-panel{
        padding:22px;
        border-radius:24px;
      }
    }
    @media (max-width: 520px){
      body{font-size:15px}
      .navbar-brand{font-size:16px}
      .brand-mark{width:30px;height:30px}
      .preview-cover{padding:20px;min-height:210px}
      .cover-title{font-size:21px}
      .tag-row{gap:8px}
      .soft-tag{font-size:12px;padding:7px 10px}
      .group-heading{
        flex-direction:column;
        gap:10px;
      }
      .accordion-button{
        padding:16px;
        font-size:15px;
      }
      .accordion-body{
        padding:0 16px 18px 18px;
      }
      .copyright{
        flex-direction:column;
      }
    }