/* roulang page: index */
:root{
      --bg:#f6f1ea;
      --bg-soft:#fbf8f3;
      --panel:#fffdf8;
      --panel-2:#f9f3ed;
      --line:#d9cec3;
      --line-strong:#bcaea3;
      --text:#2e242a;
      --muted:#75666f;
      --muted-2:#8b7d85;
      --accent:#915a7a;
      --accent-2:#c96e72;
      --accent-3:#365f56;
      --accent-4:#d9b77c;
      --shadow:0 10px 28px rgba(70,45,60,.10);
      --shadow-2:0 14px 34px rgba(70,45,60,.14);
      --radius:8px;
      --radius-sm:6px;
      --space:24px;
      --space-lg:40px;
      --max:1220px;
    }

    *{box-sizing:border-box}
    html,body{margin:0;padding:0}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      background:var(--bg);
      color:var(--text);
      line-height:1.7;
      letter-spacing:0;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(145,90,122,.18)}
    :focus-visible{outline:3px solid rgba(145,90,122,.32);outline-offset:2px}

    .site-wrap{min-height:100vh}
    .grid-container{
      max-width:var(--max);
      padding-left:1rem;
      padding-right:1rem;
    }
    .section-pad{padding:72px 0}
    .section-pad.tight{padding:48px 0}
    .section-head{
      margin-bottom:22px;
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
    }
    .section-head h2{
      margin:0;
      font-size:28px;
      line-height:1.2;
      letter-spacing:0;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:680px;
      font-size:15px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 10px;
      border:2px solid var(--line);
      border-radius:999px;
      background:var(--panel);
      color:var(--accent-3);
      font-size:12px;
      line-height:1;
      box-shadow:0 4px 10px rgba(70,45,60,.05);
    }
    .eyebrow i{font-size:11px}

    .button{
      border-radius:var(--radius-sm);
      border:2px solid var(--text);
      padding:.82rem 1rem;
      min-height:44px;
      font-weight:700;
      letter-spacing:0;
      transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
      box-shadow:4px 4px 0 rgba(46,36,42,.10);
    }
    .button:hover{
      transform:translateY(-2px);
      box-shadow:6px 6px 0 rgba(46,36,42,.12);
    }
    .button:active{transform:translateY(0);box-shadow:3px 3px 0 rgba(46,36,42,.10)}
    .button.primary{
      background:var(--accent);
      border-color:var(--accent);
      color:#fff;
    }
    .button.primary:hover{background:#7f4f6c;border-color:#7f4f6c;color:#fff}
    .button.secondary{
      background:var(--panel);
      color:var(--text);
      border-color:var(--line-strong);
    }
    .button.secondary:hover{background:#f4ece5}
    .button.hollow{
      background:transparent;
      border-color:var(--line-strong);
      color:var(--text);
      box-shadow:none;
    }
    .button.hollow:hover{
      background:rgba(255,255,255,.6);
      box-shadow:none;
      transform:translateY(-1px);
    }
    .button .fa-solid{margin-right:.45rem}

    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      background:rgba(246,241,234,.96);
      border-bottom:2px solid var(--line);
    }
    .header-inner{
      padding:12px 0;
    }
    .desktop-nav{
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:16px;
    }
    .nav-side{
      display:flex;
      align-items:center;
      gap:18px;
      min-width:0;
    }
    .nav-side.right{justify-content:flex-end}
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 2px;
      color:var(--muted);
      font-weight:700;
      position:relative;
      transition:color .18s ease, transform .18s ease;
    }
    .nav-link:hover{color:var(--text);transform:translateY(-1px)}
    .nav-link.active{
      color:var(--accent);
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:4px;
      height:3px;
      background:var(--accent-2);
    }
    .brand{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      font-size:18px;
      font-weight:900;
      color:var(--text);
      white-space:nowrap;
      letter-spacing:0;
    }
    .brand-mark{
      width:28px;height:28px;
      border-radius:7px;
      border:2px solid var(--text);
      background:
        linear-gradient(135deg, rgba(145,90,122,.14), rgba(201,110,114,.18)),
        var(--panel);
      box-shadow:4px 4px 0 rgba(46,36,42,.08);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      background:var(--text);
      width:6px;height:6px;
      top:5px;left:5px;
      box-shadow:10px 0 0 var(--accent-2), 0 10px 0 var(--accent-3), 10px 10px 0 var(--accent-4);
    }
    .mobile-bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .menu-button{
      width:44px;
      height:44px;
      border:2px solid var(--text);
      border-radius:var(--radius-sm);
      background:var(--panel);
      box-shadow:4px 4px 0 rgba(46,36,42,.10);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:var(--text);
      font-size:18px;
      cursor:pointer;
    }
    .mobile-brand{
      font-size:16px;
    }
    .mobile-ghost{
      color:var(--muted);
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }

    .hero{
      padding:42px 0 64px;
      border-bottom:1px solid rgba(185,168,157,.45);
      background:
        linear-gradient(180deg, rgba(255,255,255,.22), rgba(255,255,255,0) 34%),
        var(--bg);
    }
    .hero-shell{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:28px;
      align-items:stretch;
    }
    .hero-copy,
    .hero-panel{
      background:var(--panel);
      border:2px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-copy{
      padding:34px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:520px;
      position:relative;
      overflow:hidden;
    }
    .hero-copy::after{
      content:"";
      position:absolute;
      right:-28px;
      top:18px;
      width:120px;
      height:120px;
      border:2px solid rgba(145,90,122,.18);
      border-radius:18px;
      transform:rotate(12deg);
      background:
        linear-gradient(135deg, rgba(201,110,114,.08), rgba(54,95,86,.06));
      pointer-events:none;
    }
    .hero-copy h1{
      margin:14px 0 14px;
      font-size:50px;
      line-height:1.06;
      letter-spacing:0;
      max-width:10.5em;
      position:relative;
      z-index:1;
    }
    .hero-copy p{
      margin:0;
      max-width:780px;
      color:var(--muted);
      font-size:17px;
    }
    .hero-search{
      margin-top:22px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      position:relative;
      z-index:1;
    }
    .hero-search input{
      flex:1 1 360px;
      height:48px;
      border-radius:var(--radius-sm);
      border:2px solid var(--line-strong);
      background:var(--bg-soft);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.7);
      color:var(--text);
      padding:0 14px;
      margin:0;
    }
    .hero-search input::placeholder{color:#9a8d95}
    .hero-search .button{margin:0}
    .hero-actions{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      position:relative;
      z-index:1;
    }
    .hero-chips{
      margin-top:18px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      position:relative;
      z-index:1;
    }
    .mini-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      border:2px solid var(--line);
      border-radius:7px;
      background:var(--panel-2);
      color:var(--text);
      font-size:13px;
      font-weight:700;
    }
    .mini-chip i{color:var(--accent-3);font-size:12px}

    .hero-panel{
      padding:22px;
      min-height:520px;
      display:flex;
      flex-direction:column;
      gap:14px;
      justify-content:space-between;
      background:
        linear-gradient(180deg, rgba(255,255,255,.45), rgba(255,255,255,.10)),
        var(--panel);
    }
    .hero-stack{
      display:grid;
      gap:14px;
    }
    .stack-card{
      border:2px solid var(--line);
      border-radius:var(--radius-sm);
      background:var(--bg-soft);
      padding:16px;
      box-shadow:4px 4px 0 rgba(46,36,42,.08);
      min-height:122px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .stack-card strong{
      display:block;
      font-size:15px;
      margin-bottom:4px;
    }
    .stack-card span{
      display:block;
      color:var(--muted);
      font-size:13px;
    }
    .stack-bar{
      margin-top:10px;
      height:10px;
      border-radius:999px;
      background:#ece4dc;
      overflow:hidden;
      border:1px solid rgba(0,0,0,.06);
    }
    .stack-bar > i{
      display:block;
      height:100%;
      width:72%;
      background:linear-gradient(90deg, var(--accent), var(--accent-2));
    }
    .stack-tiles{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .tile{
      min-height:140px;
      border:2px solid var(--line);
      border-radius:var(--radius-sm);
      background:var(--panel-2);
      padding:14px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      box-shadow:4px 4px 0 rgba(46,36,42,.08);
    }
    .tile .code{
      display:inline-flex;
      width:48px;
      height:30px;
      align-items:center;
      justify-content:center;
      border:2px solid var(--text);
      border-radius:6px;
      background:var(--panel);
      font-weight:900;
      color:var(--accent);
      margin-bottom:10px;
      box-shadow:3px 3px 0 rgba(46,36,42,.08);
    }
    .tile p{
      margin:0;
      color:var(--muted);
      font-size:13px;
    }
    .hero-note{
      border-top:2px dashed rgba(141,123,110,.35);
      padding-top:14px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      color:var(--muted);
      font-size:13px;
    }

    .section-band{
      padding:0;
    }
    .band-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-bottom:18px;
    }
    .band-head .hint{
      color:var(--muted);
      font-size:14px;
      max-width:680px;
    }
    .band-rail{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:18px;
    }

    .entry-card{
      background:var(--panel);
      border:2px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      overflow:hidden;
      min-height:100%;
      display:flex;
      flex-direction:column;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .entry-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-2);
      border-color:#c6b5aa;
    }
    .entry-visual{
      aspect-ratio:4/3;
      background:
        linear-gradient(135deg, rgba(145,90,122,.12), rgba(54,95,86,.08)),
        linear-gradient(180deg, #f4eee7, #efe5dc);
      border-bottom:2px solid var(--line);
      position:relative;
      overflow:hidden;
    }
    .entry-visual::before,
    .entry-visual::after{
      content:"";
      position:absolute;
      border:2px solid rgba(46,36,42,.18);
      border-radius:8px;
      background:rgba(255,255,255,.55);
    }
    .entry-visual::before{
      width:42%;
      height:56%;
      left:10%;
      top:18%;
      box-shadow:18px 14px 0 rgba(201,110,114,.10);
    }
    .entry-visual::after{
      width:26%;
      height:24%;
      right:12%;
      bottom:18%;
      box-shadow:-14px -10px 0 rgba(54,95,86,.10);
    }
    .pixel-tag{
      position:absolute;
      left:12px;
      top:12px;
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 9px;
      border:2px solid var(--text);
      border-radius:6px;
      background:var(--panel);
      box-shadow:4px 4px 0 rgba(46,36,42,.10);
      font-size:12px;
      font-weight:900;
      color:var(--accent);
    }
    .entry-body{
      padding:18px;
      display:flex;
      flex-direction:column;
      gap:10px;
      flex:1;
    }
    .entry-body h3{
      margin:0;
      font-size:18px;
      line-height:1.35;
    }
    .entry-body p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      min-height:4.8em;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:auto;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:6px 8px;
      border:1px solid rgba(0,0,0,.08);
      border-radius:6px;
      background:#f6efe7;
      color:#51464d;
      font-size:12px;
      font-weight:700;
      line-height:1;
    }
    .entry-actions{
      display:flex;
      gap:10px;
      margin-top:4px;
      flex-wrap:wrap;
    }
    .entry-actions .button{
      flex:1 1 130px;
      margin:0;
      padding:.72rem .9rem;
      font-size:14px;
    }

    .steps{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:18px;
    }
    .step-card{
      background:var(--panel);
      border:2px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:18px;
      min-height:100%;
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .step-top{
      display:flex;
      align-items:flex-start;
      gap:12px;
    }
    .step-num{
      width:48px;
      height:48px;
      border:2px solid var(--text);
      border-radius:7px;
      background:linear-gradient(135deg, rgba(145,90,122,.14), rgba(201,110,114,.12));
      box-shadow:4px 4px 0 rgba(46,36,42,.09);
      display:flex;
      align-items:center;
      justify-content:center;
      font-size:18px;
      font-weight:900;
      color:var(--accent);
      flex:0 0 auto;
    }
    .step-card h3{
      margin:0;
      font-size:17px;
      line-height:1.35;
    }
    .step-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      min-height:5.5em;
    }
    .step-foot{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:10px;
      margin-top:auto;
    }

    .review-rail{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding-bottom:8px;
      scroll-snap-type:x proximity;
    }
    .review-card{
      min-width:300px;
      max-width:300px;
      background:var(--panel);
      border:2px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:18px;
      scroll-snap-align:start;
    }
    .review-head{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
    }
    .avatar{
      width:44px;
      height:44px;
      border-radius:7px;
      border:2px solid var(--text);
      background:linear-gradient(135deg, rgba(54,95,86,.15), rgba(145,90,122,.12));
      box-shadow:4px 4px 0 rgba(46,36,42,.08);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      color:var(--text);
    }
    .review-head strong{
      display:block;
      font-size:15px;
      line-height:1.2;
    }
    .review-head span{
      display:block;
      color:var(--muted);
      font-size:12px;
      margin-top:3px;
    }
    .stars{
      color:#c68f2d;
      letter-spacing:1px;
      font-size:13px;
      margin-top:6px;
    }
    .review-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      min-height:6em;
    }

    .info-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
      align-items:stretch;
    }
    .news-panel,
    .update-panel,
    .support-panel,
    .cta-panel{
      background:var(--panel);
      border:2px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .news-panel{
      padding:22px;
    }
    .news-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:0;
    }
    .news-item{
      padding:16px 0;
      border-bottom:1px solid rgba(185,168,157,.55);
      display:flex;
      gap:12px;
      align-items:flex-start;
    }
    .news-item:last-child{border-bottom:0;padding-bottom:0}
    .news-item .mark{
      width:32px;
      height:32px;
      border:2px solid var(--text);
      border-radius:6px;
      background:var(--panel-2);
      display:flex;
      align-items:center;
      justify-content:center;
      font-size:12px;
      font-weight:900;
      color:var(--accent);
      flex:0 0 auto;
      margin-top:2px;
    }
    .news-item a{
      display:block;
      font-weight:800;
      margin-bottom:4px;
      line-height:1.35;
    }
    .news-item a:hover{color:var(--accent)}
    .news-meta{
      color:var(--muted);
      font-size:13px;
    }
    .news-aside{
      padding:22px;
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .update-panel{
      padding:18px;
    }
    .update-panel h3,
    .support-panel h3,
    .cta-panel h3{
      margin:0 0 10px;
      font-size:18px;
      line-height:1.3;
    }
    .changelog{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .changelog li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:14px;
    }
    .changelog .dot{
      width:14px;
      height:14px;
      border-radius:4px;
      border:2px solid var(--text);
      background:var(--accent-4);
      margin-top:4px;
      flex:0 0 auto;
      box-shadow:2px 2px 0 rgba(46,36,42,.08);
    }
    .support-panel{
      padding:18px;
    }
    .support-icons{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:10px;
      margin-top:10px;
    }
    .support-chip{
      min-height:90px;
      border:2px solid var(--line);
      border-radius:7px;
      background:var(--bg-soft);
      padding:12px 10px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      align-items:flex-start;
      gap:8px;
    }
    .support-chip i{
      color:var(--accent-3);
      font-size:18px;
    }
    .support-chip strong{
      font-size:13px;
      line-height:1.25;
    }
    .support-chip span{
      font-size:12px;
      color:var(--muted);
      line-height:1.35;
    }

    .callout{
      border:2px solid var(--line);
      border-radius:var(--radius);
      background:var(--panel);
      box-shadow:var(--shadow);
      padding:18px;
    }
    .callout.primary{
      background:linear-gradient(135deg, rgba(145,90,122,.10), rgba(201,110,114,.08)), var(--panel);
      border-color:#c8b9af;
    }
    .callout h3{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.3;
    }
    .callout p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .callout .button{margin-top:14px}

    .faq-section .accordion{
      border:0;
      background:transparent;
    }
    .accordion-item{
      margin-bottom:12px;
      border:2px solid var(--line);
      border-radius:var(--radius);
      overflow:hidden;
      background:var(--panel);
      box-shadow:var(--shadow);
    }
    .accordion-title{
      font-size:16px;
      line-height:1.45;
      color:var(--text);
      background:var(--panel);
      border:0;
      padding:18px 18px 18px 50px;
      position:relative;
    }
    .accordion-title::before{
      content:"+";
      position:absolute;
      left:16px;
      top:50%;
      transform:translateY(-50%);
      width:24px;
      height:24px;
      border-radius:6px;
      border:2px solid var(--text);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      color:var(--accent);
      background:var(--panel-2);
      box-shadow:3px 3px 0 rgba(46,36,42,.08);
    }
    .accordion-item.is-active .accordion-title::before{
      content:"-";
    }
    .accordion-content{
      border:0;
      background:var(--bg-soft);
      color:var(--muted);
      padding:0 18px 18px 50px;
      font-size:14px;
    }

    .cta-band{
      margin-top:10px;
      padding:28px;
      border-radius:var(--radius);
      border:2px solid var(--text);
      background:
        linear-gradient(135deg, rgba(145,90,122,.10), rgba(54,95,86,.07)),
        var(--panel);
      box-shadow:6px 6px 0 rgba(46,36,42,.10);
    }
    .cta-band-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
    }
    .cta-band h3{
      margin:0 0 8px;
      font-size:24px;
      line-height:1.25;
    }
    .cta-band p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      max-width:720px;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
    }

    .site-footer{
      margin-top:28px;
      padding:34px 0 40px;
      border-top:2px solid var(--line);
      background:rgba(255,255,255,.22);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:20px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .footer-brand .brand{
      justify-content:flex-start;
    }
    .footer-note{
      color:var(--muted);
      font-size:14px;
      max-width:760px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px 16px;
      justify-content:flex-end;
      align-items:center;
    }
    .footer-links a{
      color:var(--muted);
      font-weight:700;
    }
    .footer-links a:hover{color:var(--text)}
    .copyright{
      margin-top:18px;
      color:var(--muted-2);
      font-size:13px;
    }

    .search-result{
      margin-top:14px;
      color:var(--muted);
      font-size:13px;
    }

    .reveal{
      border:2px solid var(--text);
      border-radius:var(--radius);
      background:var(--panel);
      box-shadow:var(--shadow-2);
      padding:24px;
      max-width:560px;
    }
    .reveal h3{
      margin:0 0 10px;
      font-size:22px;
      line-height:1.25;
    }
    .reveal p{
      margin:0 0 14px;
      color:var(--muted);
      font-size:14px;
    }
    .reveal ul{
      margin:0;
      padding-left:18px;
      color:var(--muted);
      font-size:14px;
    }
    .reveal li{margin-bottom:8px}
    .reveal .button{margin-top:16px}

    .breadcrumb-line{
      margin-bottom:10px;
      color:var(--muted);
      font-size:13px;
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
    }
    .breadcrumb-line a{
      color:var(--accent-3);
      font-weight:700;
    }

    .data-row{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:14px;
      margin-top:18px;
    }
    .data-box{
      background:var(--panel);
      border:2px solid var(--line);
      border-radius:var(--radius-sm);
      box-shadow:4px 4px 0 rgba(46,36,42,.08);
      padding:14px;
      min-height:110px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .data-box strong{
      font-size:22px;
      line-height:1.1;
      color:var(--accent);
    }
    .data-box span{
      color:var(--muted);
      font-size:13px;
    }

    @media screen and (max-width: 63.9375em){
      .section-pad{padding:56px 0}
      .hero-shell,
      .info-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .hero-copy h1{font-size:40px}
      .band-rail,
      .steps,
      .support-icons,
      .data-row{
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
      .hero-copy,
      .hero-panel{min-height:auto}
      .hero-panel{padding:18px}
      .desktop-nav{display:none}
      .mobile-bar{display:flex}
    }

    @media screen and (min-width: 64em){
      .mobile-bar{display:none}
      .band-rail{grid-template-columns:repeat(4, minmax(0,1fr))}
    }

    @media screen and (max-width: 39.9375em){
      .grid-container{padding-left:.85rem;padding-right:.85rem}
      .section-pad{padding:44px 0}
      .section-head{align-items:flex-start;flex-direction:column}
      .section-head h2{font-size:24px}
      .hero{padding:28px 0 48px}
      .hero-copy{padding:22px}
      .hero-copy h1{font-size:32px;max-width:none}
      .hero-copy p{font-size:15px}
      .hero-search input,.hero-search .button{width:100%}
      .hero-actions .button{width:100%}
      .hero-chips{gap:8px}
      .mini-chip{width:100%;justify-content:flex-start}
      .stack-tiles,
      .band-rail,
      .steps,
      .support-icons,
      .data-row{
        grid-template-columns:1fr;
      }
      .review-card{min-width:86vw;max-width:86vw}
      .cta-band{padding:20px}
      .cta-band h3{font-size:21px}
      .footer-links{justify-content:flex-start}
      .accordion-title{padding-left:46px}
      .accordion-content{padding-left:46px}
      .news-item{flex-direction:column}
    }

/* roulang page: category1 */
:root {
      --bg: #fbf7ef;
      --bg-soft: #f2f7f2;
      --surface: #fffdf8;
      --surface-strong: #fff6f1;
      --ink: #2b2026;
      --muted: #71646a;
      --line: #4e3945;
      --line-soft: #eadbd7;
      --primary: #a43f6a;
      --primary-dark: #7d294f;
      --accent: #e98572;
      --mint: #d9efe4;
      --cyan: #d8f1ee;
      --cream: #fff0b8;
      --shadow: 0 10px 28px rgba(70, 45, 60, .10);
      --shadow-strong: 5px 5px 0 rgba(78, 57, 69, .16);
      --radius: 8px;
      --radius-sm: 6px;
      --space: clamp(36px, 6vw, 76px);
      --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--ink);
      background:
        linear-gradient(90deg, rgba(78, 57, 69, .035) 1px, transparent 1px),
        linear-gradient(rgba(78, 57, 69, .035) 1px, transparent 1px),
        var(--bg);
      background-size: 22px 22px;
      line-height: 1.7;
      letter-spacing: 0;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .18s ease, transform .18s ease, box-shadow .18s ease, background .18s ease;
    }

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

    button,
    input,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(164, 63, 106, .28);
      outline-offset: 3px;
    }

    .grid-container {
      max-width: 1200px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 253, 248, .95);
      border-bottom: 2px solid var(--line);
      box-shadow: 0 7px 0 rgba(78, 57, 69, .04);
      backdrop-filter: blur(10px);
    }

    .header-inner {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .desktop-nav {
      width: 100%;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 24px;
    }

    .nav-side {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-side.left {
      justify-content: flex-end;
    }

    .nav-side.right {
      justify-content: flex-start;
    }

    .nav-link,
    .mobile-ghost {
      min-height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 14px;
      border: 2px solid transparent;
      border-radius: var(--radius-sm);
      color: var(--muted);
      font-weight: 700;
      font-size: 14px;
      white-space: nowrap;
    }

    .nav-link:hover,
    .mobile-ghost:hover,
    .nav-link.active {
      color: var(--ink);
      background: var(--mint);
      border-color: var(--line);
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .14);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      font-weight: 900;
      letter-spacing: 0;
      line-height: 1.25;
      max-width: 420px;
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      background:
        linear-gradient(90deg, var(--primary) 0 45%, transparent 45% 55%, var(--accent) 55%),
        linear-gradient(var(--cream), var(--cream));
      border: 2px solid var(--line);
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .16);
      image-rendering: pixelated;
    }

    .mobile-bar {
      width: 100%;
      min-height: 70px;
      display: grid;
      grid-template-columns: 44px 1fr auto;
      align-items: center;
      gap: 10px;
    }

    .menu-button {
      width: 44px;
      height: 44px;
      border: 2px solid var(--line);
      border-radius: var(--radius-sm);
      background: var(--surface);
      color: var(--ink);
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .14);
    }

    .mobile-brand {
      font-size: 15px;
      min-width: 0;
    }

    .mobile-brand span:last-child {
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .mobile-ghost {
      padding: 8px 10px;
      font-size: 13px;
      border-color: var(--line);
      background: var(--mint);
    }

    .section {
      padding: var(--space) 0;
    }

    .section-tight {
      padding: 44px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      padding: 5px 9px;
      background: var(--cream);
      border: 2px solid var(--line);
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 800;
      color: var(--ink);
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .12);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      background: var(--primary);
      border: 1px solid var(--line);
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    h1 {
      max-width: 820px;
      margin-bottom: 18px;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      font-weight: 950;
      letter-spacing: 0;
    }

    h2 {
      margin-bottom: 14px;
      font-size: clamp(26px, 3vw, 38px);
      line-height: 1.18;
      font-weight: 920;
      letter-spacing: 0;
    }

    h3 {
      margin-bottom: 10px;
      font-size: 20px;
      line-height: 1.35;
      font-weight: 880;
      letter-spacing: 0;
    }

    .lead {
      max-width: 780px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.8;
    }

    .breadcrumb-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 18px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
    }

    .breadcrumb-row a:hover {
      color: var(--primary-dark);
    }

    .hero-category {
      padding: 48px 0 30px;
    }

    .category-bento {
      display: grid;
      grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr);
      gap: 18px;
      align-items: stretch;
    }

    .hero-main,
    .hero-panel,
    .filter-panel,
    .entry-card,
    .note-card,
    .review-card,
    .cta-panel,
    .recommend-card {
      border: 2px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: var(--shadow);
    }

    .hero-main {
      position: relative;
      overflow: hidden;
      padding: clamp(24px, 4vw, 42px);
      background:
        linear-gradient(135deg, rgba(217, 239, 228, .78), rgba(255, 246, 241, .88)),
        var(--surface);
    }

    .hero-main::after {
      content: "";
      position: absolute;
      right: 22px;
      bottom: 20px;
      width: 120px;
      height: 120px;
      opacity: .22;
      background:
        linear-gradient(90deg, var(--primary) 8px, transparent 8px) 0 0 / 24px 24px,
        linear-gradient(var(--accent) 8px, transparent 8px) 0 0 / 24px 24px;
      pointer-events: none;
    }

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

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

    .hero-side {
      display: grid;
      gap: 18px;
    }

    .hero-panel {
      padding: 20px;
      background: var(--surface-strong);
    }

    .hero-panel.alt {
      background: var(--bg-soft);
    }

    .mini-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
      font-weight: 900;
    }

    .pixel-icon {
      width: 28px;
      height: 28px;
      display: inline-grid;
      place-items: center;
      border: 2px solid var(--line);
      background: var(--cream);
      box-shadow: 2px 2px 0 rgba(78, 57, 69, .14);
      font-size: 13px;
    }

    .stat-line {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 10px;
      padding: 9px 0;
      border-top: 1px dashed rgba(78, 57, 69, .28);
      color: var(--muted);
      font-size: 14px;
    }

    .stat-line strong {
      color: var(--ink);
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 18px 0 0;
    }

    .tag,
    .badge-soft {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 4px 8px;
      border: 2px solid var(--line);
      border-radius: 4px;
      background: var(--cyan);
      color: var(--ink);
      font-size: 13px;
      font-weight: 800;
      line-height: 1.25;
    }

    .tag:nth-child(2n) {
      background: var(--cream);
    }

    .tag:nth-child(3n) {
      background: var(--mint);
    }

    .button,
    .button:focus {
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      margin: 0;
      padding: 11px 17px;
      border: 2px solid var(--line);
      border-radius: var(--radius-sm);
      background: var(--primary);
      color: #fffdf8;
      font-weight: 900;
      line-height: 1.2;
      box-shadow: 4px 4px 0 rgba(78, 57, 69, .18);
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
    }

    .button:hover {
      color: #fffdf8;
      background: var(--primary-dark);
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 rgba(78, 57, 69, .20);
    }

    .button.secondary {
      background: var(--surface);
      color: var(--ink);
    }

    .button.secondary:hover {
      background: var(--mint);
      color: var(--ink);
    }

    .button.tiny {
      min-height: 38px;
      padding: 8px 12px;
      font-size: 13px;
    }

    .cta-strip {
      margin-top: 18px;
      padding: 14px 16px;
      border: 2px solid var(--line);
      border-radius: var(--radius);
      background: #fffaf2;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      box-shadow: 4px 4px 0 rgba(78, 57, 69, .10);
    }

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

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 20px;
      align-items: end;
      margin-bottom: 24px;
    }

    .section-head p {
      max-width: 720px;
      margin-bottom: 0;
      color: var(--muted);
    }

    .filter-shell {
      align-items: start;
    }

    .filter-panel {
      position: sticky;
      top: 96px;
      padding: 20px;
      background: #fffaf2;
    }

    .filter-panel h2 {
      font-size: 24px;
    }

    .filter-group {
      padding: 14px 0;
      border-top: 1px dashed rgba(78, 57, 69, .28);
    }

    .filter-label {
      margin-bottom: 9px;
      font-size: 13px;
      font-weight: 900;
      color: var(--ink);
    }

    .filter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .filter-chip {
      min-height: 34px;
      padding: 7px 10px;
      border: 2px solid var(--line);
      border-radius: 4px;
      background: var(--surface);
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
      transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
    }

    .filter-chip:hover,
    .filter-chip.is-active {
      background: var(--mint);
      color: var(--ink);
      transform: translate(-1px, -1px);
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .14);
    }

    .search-box {
      display: flex;
      gap: 8px;
      margin-top: 12px;
    }

    .search-box input {
      height: 44px;
      flex: 1;
      min-width: 0;
      border: 2px solid var(--line);
      border-radius: var(--radius-sm);
      background: var(--surface);
      box-shadow: none;
      color: var(--ink);
    }

    .search-box input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(164, 63, 106, .13);
    }

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

    .entry-card {
      position: relative;
      min-height: 390px;
      padding: 16px;
      overflow: hidden;
      background: var(--surface);
      transition: transform .18s ease, box-shadow .18s ease;
    }

    .entry-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow), var(--shadow-strong);
    }

    .entry-card.is-hidden {
      display: none;
    }

    .card-visual {
      position: relative;
      min-height: 152px;
      margin-bottom: 16px;
      border: 2px solid var(--line);
      border-radius: var(--radius-sm);
      overflow: hidden;
      background:
        linear-gradient(135deg, rgba(233, 133, 114, .2), transparent 55%),
        linear-gradient(90deg, rgba(164, 63, 106, .16) 1px, transparent 1px),
        linear-gradient(rgba(164, 63, 106, .14) 1px, transparent 1px),
        #f9eee7;
      background-size: auto, 18px 18px, 18px 18px, auto;
    }

    .card-visual::before {
      content: "";
      position: absolute;
      inset: 22px 18px auto auto;
      width: 58px;
      height: 86px;
      border: 2px solid var(--line);
      background: var(--mint);
      box-shadow: -18px 18px 0 var(--cream), -36px 34px 0 var(--cyan);
    }

    .card-number {
      position: absolute;
      top: 10px;
      left: 10px;
      padding: 4px 8px;
      border: 2px solid var(--line);
      background: var(--primary);
      color: #fff;
      font-weight: 900;
      font-size: 13px;
      line-height: 1.2;
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .14);
    }

    .entry-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 10px 0 12px;
    }

    .entry-card p {
      min-height: 76px;
      margin-bottom: 16px;
      color: var(--muted);
      font-size: 15px;
    }

    .entry-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-top: 12px;
      border-top: 1px dashed rgba(78, 57, 69, .28);
    }

    .status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 900;
      white-space: nowrap;
    }

    .status::before {
      content: "";
      width: 9px;
      height: 9px;
      background: #4f8f6c;
      border: 1px solid var(--line);
    }

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

    .note-card {
      padding: 18px;
      background: #fffaf2;
    }

    .step-no {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      border: 2px solid var(--line);
      background: var(--accent);
      color: #fff;
      font-weight: 950;
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .14);
    }

    .note-card p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 15px;
    }

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

    .review-card {
      padding: 18px;
      background: var(--bg-soft);
    }

    .review-top {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .avatar {
      width: 42px;
      height: 42px;
      flex: 0 0 auto;
      border: 2px solid var(--line);
      background:
        linear-gradient(90deg, var(--cream) 50%, var(--mint) 50%);
      box-shadow: 3px 3px 0 rgba(78, 57, 69, .12);
    }

    .review-card p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .recommend-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

    .recommend-card {
      padding: 20px;
      background: var(--surface);
    }

    .recommend-list {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .recommend-list li {
      display: flex;
      gap: 10px;
      padding: 10px 0;
      border-top: 1px dashed rgba(78, 57, 69, .25);
      color: var(--muted);
    }

    .recommend-list i {
      margin-top: 5px;
      color: var(--primary);
    }

    .faq-section {
      background:
        linear-gradient(180deg, rgba(217, 239, 228, .55), rgba(255, 253, 248, .6));
      border-top: 2px solid rgba(78, 57, 69, .12);
      border-bottom: 2px solid rgba(78, 57, 69, .12);
    }

    .accordion {
      background: transparent;
    }

    .accordion-item {
      margin-bottom: 12px;
      border: 2px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--surface);
      box-shadow: 4px 4px 0 rgba(78, 57, 69, .10);
    }

    .accordion-title {
      padding: 18px 52px 18px 18px;
      border: 0;
      color: var(--ink);
      font-weight: 900;
      font-size: 16px;
      line-height: 1.45;
      background: var(--surface);
    }

    .accordion-title:hover,
    .accordion-title:focus {
      background: var(--cream);
      color: var(--ink);
    }

    .accordion-title::before {
      right: 18px;
      margin-top: -11px;
      font-size: 22px;
      color: var(--primary);
    }

    .accordion-content {
      border: 0;
      border-top: 2px solid var(--line-soft);
      background: #fffaf2;
      color: var(--muted);
      line-height: 1.8;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: clamp(24px, 4vw, 40px);
      background:
        linear-gradient(135deg, rgba(164, 63, 106, .12), rgba(233, 133, 114, .12)),
        var(--surface);
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      right: -20px;
      top: -20px;
      width: 130px;
      height: 130px;
      background:
        linear-gradient(90deg, var(--mint) 12px, transparent 12px) 0 0 / 26px 26px,
        linear-gradient(var(--cream) 12px, transparent 12px) 0 0 / 26px 26px;
      opacity: .45;
    }

    .cta-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 22px;
      align-items: center;
    }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .site-footer {
      padding: 44px 0;
      background: #2b2026;
      color: #fffdf8;
      border-top: 2px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.3fr) auto;
      gap: 28px;
      align-items: start;
    }

    .site-footer .brand {
      color: #fffdf8;
    }

    .site-footer .brand-mark {
      border-color: #fffdf8;
      box-shadow: 3px 3px 0 rgba(255, 253, 248, .16);
    }

    .footer-note {
      max-width: 620px;
      margin-top: 14px;
      color: rgba(255, 253, 248, .72);
      font-size: 14px;
      line-height: 1.8;
    }

    .copyright {
      margin-top: 12px;
      color: rgba(255, 253, 248, .58);
      font-size: 13px;
    }

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

    .footer-links a {
      padding: 8px 10px;
      border: 1px solid rgba(255, 253, 248, .22);
      border-radius: var(--radius-sm);
      color: rgba(255, 253, 248, .78);
      font-size: 14px;
      font-weight: 800;
    }

    .footer-links a:hover {
      color: #fffdf8;
      background: rgba(255, 253, 248, .10);
      transform: translateY(-2px);
    }

    .reveal {
      border: 2px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: var(--shadow-strong);
    }

    .mobile-menu-list {
      display: grid;
      gap: 10px;
      margin-top: 18px;
    }

    .mobile-menu-list a {
      padding: 12px;
      border: 2px solid var(--line);
      border-radius: var(--radius-sm);
      background: #fffaf2;
      font-weight: 900;
    }

    .close-button {
      color: var(--ink);
    }

    @media screen and (max-width: 1024px) {
      .category-bento {
        grid-template-columns: 1fr;
      }

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

      .filter-panel {
        position: static;
      }

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

      .review-row {
        grid-template-columns: 1fr;
      }
    }

    @media screen and (max-width: 768px) {
      .section {
        padding: 48px 0;
      }

      .hero-category {
        padding-top: 30px;
      }

      .hero-side,
      .entry-grid,
      .recommend-grid,
      .steps-wrap,
      .cta-inner,
      .footer-grid,
      .section-head {
        grid-template-columns: 1fr;
      }

      .cta-strip,
      .entry-bottom {
        align-items: stretch;
        flex-direction: column;
      }

      .cta-strip .button,
      .entry-bottom .button,
      .hero-actions .button,
      .cta-inner .button {
        width: 100%;
      }

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

    @media screen and (max-width: 520px) {
      h1 {
        font-size: 32px;
      }

      h2 {
        font-size: 25px;
      }

      .hero-main,
      .hero-panel,
      .filter-panel,
      .entry-card,
      .note-card,
      .review-card,
      .recommend-card,
      .cta-panel {
        padding: 16px;
      }

      .mobile-ghost {
        max-width: 88px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .search-box {
        flex-direction: column;
      }

      .entry-card {
        min-height: auto;
      }

      .entry-card p {
        min-height: 0;
      }

      .tag,
      .badge-soft {
        font-size: 12px;
      }
    }