/* roulang page: index */
:root{
      --bg: #f6efe8;
      --bg-soft: #efe4d8;
      --surface: #fffaf6;
      --surface-2: #241c18;
      --surface-3: #1a1411;
      --primary: #7d1f2b;
      --primary-deep: #5f1320;
      --primary-soft: rgba(125,31,43,.12);
      --accent: #b48a52;
      --accent-soft: rgba(180,138,82,.16);
      --text: #261e1a;
      --muted: #7e6f67;
      --muted-2: #a08f85;
      --line: rgba(125,31,43,.14);
      --line-2: rgba(255,255,255,.09);
      --shadow: 0 18px 38px rgba(31,20,14,.08);
      --shadow-strong: 0 30px 70px rgba(31,20,14,.16);
      --radius: 18px;
      --radius-lg: 28px;
      --radius-xl: 36px;
      --container: 1240px;
      --gap: 24px;
      --transition: .24s ease;
      --header-h: 84px;
    }

    *{ box-sizing:border-box; }
    html{ scroll-behavior:smooth; }
    body{
      margin:0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(125,31,43,.08), transparent 36%),
        radial-gradient(circle at bottom right, rgba(180,138,82,.09), transparent 28%),
        linear-gradient(180deg, #faf5ef 0%, #f3ebe2 42%, #f6efe8 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    img{ max-width:100%; display:block; }
    a{ color:inherit; text-decoration:none; }
    button,input,textarea,select{ font:inherit; }
    ::selection{ background: rgba(125,31,43,.18); color: var(--text); }

    .site-shell{
      min-height:100vh;
      display:flex;
      flex-direction:column;
    }

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

    .topbar{
      background: linear-gradient(90deg, rgba(32,22,18,.98), rgba(49,25,22,.98));
      color: rgba(255,246,240,.88);
      font-size:13px;
      letter-spacing:.2px;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .topbar .container{
      min-height:40px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:8px 0;
    }
    .topbar .hint{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .topbar .hint .dot{
      width:8px;
      height:8px;
      border-radius:999px;
      background: var(--accent);
      box-shadow:0 0 0 6px rgba(180,138,82,.12);
      flex:none;
    }
    .topbar .meta{
      color: rgba(255,246,240,.72);
      white-space:nowrap;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter:saturate(130%);
      background: rgba(246,239,232,.86);
      border-bottom:1px solid rgba(125,31,43,.09);
      box-shadow: 0 12px 24px rgba(34,22,15,.04);
    }
    .site-header .container{
      min-height: var(--header-h);
      display:flex;
      align-items:center;
      gap:18px;
      padding:14px 0;
    }

    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      flex:none;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background:
        linear-gradient(145deg, var(--primary), var(--primary-deep));
      color:#fff;
      display:grid;
      place-items:center;
      font-weight:800;
      letter-spacing:.6px;
      box-shadow: 0 14px 26px rgba(125,31,43,.22);
      flex:none;
    }
    .brand-text{
      min-width:0;
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-text strong{
      font-size:18px;
      color: var(--text);
      letter-spacing:.2px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      margin-top:4px;
      font-size:12px;
      color: var(--muted);
    }

    .nav-toggle{
      position:absolute;
      opacity:0;
      pointer-events:none;
    }
    .nav-toggle-btn{
      display:none;
      margin-left:auto;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      align-items:center;
      justify-content:center;
      color: var(--text);
      background: rgba(255,255,255,.6);
      cursor:pointer;
      transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .nav-toggle-btn:hover{
      transform: translateY(-1px);
      background:#fff;
      box-shadow: var(--shadow);
      border-color: rgba(125,31,43,.24);
    }

    .site-nav{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:18px;
      min-width:0;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      flex-wrap:wrap;
    }
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      padding:10px 13px;
      border-radius:999px;
      color: var(--muted);
      transition: background var(--transition), color var(--transition), transform var(--transition);
      outline:none;
    }
    .nav-links a::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:7px;
      height:1px;
      background: currentColor;
      transform: scaleX(0);
      transform-origin:center;
      transition: transform var(--transition);
      opacity:.65;
    }
    .nav-links a:hover{
      color: var(--primary);
      background: rgba(125,31,43,.06);
      transform: translateY(-1px);
    }
    .nav-links a:hover::after,
    .nav-links a:focus-visible::after{
      transform: scaleX(1);
    }
    .nav-links a:focus-visible,
    .btn:focus-visible,
    .summary-btn:focus-visible{
      outline: 3px solid rgba(125,31,43,.24);
      outline-offset: 2px;
    }
    .nav-links a.active{
      color: var(--primary);
      background: rgba(125,31,43,.08);
    }
    .nav-links a.active::after{ transform:scaleX(1); }

    .header-actions{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:10px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:12px 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.15px;
      cursor:pointer;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }
    .btn:active{
      transform: translateY(0);
      box-shadow:none;
    }
    .btn-primary{
      color:#fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-deep));
      box-shadow: 0 14px 28px rgba(125,31,43,.24);
    }
    .btn-primary:hover{
      background: linear-gradient(135deg, #8a2432, #651423);
    }
    .btn-secondary{
      color: var(--primary);
      background: rgba(255,255,255,.68);
      border-color: rgba(125,31,43,.16);
    }
    .btn-secondary:hover{
      background:#fff;
      border-color: rgba(125,31,43,.24);
      color: var(--primary-deep);
    }
    .btn-ghost{
      color: var(--text);
      background: rgba(255,255,255,.48);
      border-color: rgba(38,30,26,.12);
    }
    .btn-ghost:hover{
      background:#fff;
      border-color: rgba(125,31,43,.18);
    }
    .btn.small{
      padding:10px 15px;
      font-size:14px;
    }

    .hero{
      position:relative;
      overflow:hidden;
      color:#fff;
      background:
        linear-gradient(180deg, rgba(24,17,14,.58), rgba(24,17,14,.86)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 20%, rgba(180,138,82,.18), transparent 20%),
        radial-gradient(circle at 84% 16%, rgba(125,31,43,.20), transparent 24%),
        linear-gradient(180deg, transparent, rgba(15,11,9,.24) 86%);
      pointer-events:none;
    }
    .hero .container{
      position:relative;
      z-index:1;
      padding: 72px 0 56px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:32px;
      align-items:center;
    }
    .hero-copy{
      padding: 10px 0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border:1px solid rgba(255,255,255,.16);
      border-radius:999px;
      color: rgba(255,247,242,.82);
      background: rgba(255,255,255,.08);
      font-size:13px;
      letter-spacing:.2px;
      margin-bottom:18px;
    }
    .eyebrow .pulse{
      width:8px;
      height:8px;
      border-radius:999px;
      background: var(--accent);
      box-shadow:0 0 0 7px rgba(180,138,82,.14);
      flex:none;
    }
    .hero h1{
      margin:0;
      font-size: clamp(34px, 5vw, 58px);
      line-height:1.06;
      letter-spacing:-.02em;
      max-width: 12ch;
    }
    .hero p{
      margin: 18px 0 0;
      color: rgba(255,247,242,.84);
      max-width: 48rem;
      font-size: 16px;
      line-height: 1.95;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .hero-pills{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      background: rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      color: rgba(255,247,242,.88);
      font-size:13px;
      backdrop-filter:none;
    }
    .pill .mini-dot{
      width:7px;
      height:7px;
      border-radius:999px;
      background: var(--accent);
      flex:none;
    }

    .hero-visual{
      position:relative;
      min-height: 520px;
      display:grid;
      grid-template-columns: 1.12fr .88fr;
      gap:16px;
      align-items:stretch;
    }
    .hero-frame,
    .hero-stack-card,
    .mini-panel{
      position:relative;
      overflow:hidden;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(255,255,255,.12);
      box-shadow: 0 24px 54px rgba(0,0,0,.22);
      background: rgba(255,255,255,.06);
    }
    .hero-frame{
      min-height: 100%;
      background:
        linear-gradient(180deg, rgba(24,17,14,.08), rgba(24,17,14,.48)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .hero-frame::after{
      content:"";
      position:absolute;
      inset:0;
      background: linear-gradient(180deg, transparent 0%, rgba(17,11,9,.18) 46%, rgba(17,11,9,.55) 100%);
    }
    .hero-frame-caption{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      z-index:1;
      display:flex;
      flex-direction:column;
      gap:8px;
      color:#fff;
    }
    .hero-frame-caption strong{
      font-size:18px;
      letter-spacing:.2px;
    }
    .hero-frame-caption span{
      color: rgba(255,247,242,.82);
      font-size:13px;
    }

    .hero-stack{
      display:grid;
      grid-template-rows: 1fr 1fr;
      gap:16px;
      min-height:100%;
    }
    .hero-stack-card{
      background:#2a201c;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
    }
    .hero-stack-card img{
      width:100%;
      height:100%;
      object-fit:cover;
      position:absolute;
      inset:0;
      filter:saturate(.96) contrast(1.02);
    }
    .hero-stack-card::after{
      content:"";
      position:absolute;
      inset:0;
      background: linear-gradient(180deg, rgba(18,12,10,.10), rgba(18,12,10,.56));
    }
    .hero-stack-content{
      position:relative;
      z-index:1;
      padding:16px 16px 15px;
      color:#fff;
    }
    .hero-stack-content .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background: rgba(255,255,255,.12);
      color:#fff;
      font-size:12px;
      margin-bottom:8px;
    }
    .hero-stack-content h3{
      margin:0;
      font-size:17px;
      line-height:1.35;
    }
    .hero-stack-content p{
      margin:8px 0 0;
      color: rgba(255,247,242,.80);
      font-size:13px;
      line-height:1.7;
    }

    .hero-note{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .hero-note .note{
      flex:1 1 180px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 16px;
      padding:14px 15px;
      color: rgba(255,247,242,.86);
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .hero-note .note strong{
      display:block;
      font-size:14px;
      color:#fff;
      margin-bottom:2px;
    }
    .hero-note .note span{
      display:block;
      font-size:13px;
      line-height:1.65;
      color: rgba(255,247,242,.76);
    }
    .note-icon{
      width:10px;
      height:10px;
      margin-top:6px;
      border-radius:999px;
      background: var(--accent);
      box-shadow:0 0 0 6px rgba(180,138,82,.12);
      flex:none;
    }

    main{
      flex:1;
    }

    .section{
      padding: 88px 0;
    }
    .section-soft{
      background:
        linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.08)),
        linear-gradient(180deg, #f6efe8, #efe4d8);
      border-top:1px solid rgba(125,31,43,.06);
      border-bottom:1px solid rgba(125,31,43,.06);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:26px;
    }
    .section-title{
      margin:0;
      font-size: clamp(26px, 3vw, 38px);
      line-height:1.14;
      letter-spacing:-.02em;
      color: var(--text);
    }
    .section-subtitle{
      margin:0;
      max-width: 56rem;
      color: var(--muted);
      line-height:1.85;
      font-size:15px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border-radius:999px;
      background: rgba(125,31,43,.08);
      color: var(--primary);
      font-size:13px;
      margin-bottom:14px;
    }
    .section-kicker .mini-dot{
      width:7px;
      height:7px;
      border-radius:999px;
      background: var(--accent);
      flex:none;
    }

    .feature-grid{
      display:grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap: var(--gap);
    }
    .feature-card{
      background: rgba(255,250,246,.92);
      border:1px solid var(--line);
      border-radius: var(--radius);
      padding:22px;
      box-shadow: var(--shadow);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
      min-height: 100%;
    }
    .feature-card:hover{
      transform: translateY(-3px);
      border-color: rgba(125,31,43,.22);
      box-shadow: var(--shadow-strong);
      background:#fff;
    }
    .feature-ico{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-deep));
      margin-bottom:16px;
      box-shadow: 0 14px 26px rgba(125,31,43,.18);
      font-weight:800;
    }
    .feature-card h3{
      margin:0;
      font-size:18px;
      line-height:1.35;
    }
    .feature-card p{
      margin:10px 0 0;
      color: var(--muted);
      font-size:14px;
      line-height:1.85;
    }

    .featured-grid{
      margin-top: 26px;
      display:grid;
      grid-template-columns: repeat(12, minmax(0,1fr));
      gap: var(--gap);
    }
    .featured-card{
      grid-column: span 4;
      background: var(--surface);
      border:1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow:hidden;
      box-shadow: var(--shadow);
      display:flex;
      flex-direction:column;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      min-height: 100%;
    }
    .featured-card:hover{
      transform: translateY(-4px);
      border-color: rgba(125,31,43,.22);
      box-shadow: var(--shadow-strong);
    }
    .featured-card.lead{
      grid-column: span 5;
    }
    .featured-thumb{
      position:relative;
      aspect-ratio: 16 / 10;
      overflow:hidden;
      background: #2c221c;
    }
    .featured-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition: transform .45s ease, filter .45s ease;
      filter: saturate(.95) contrast(1.02);
    }
    .featured-card:hover .featured-thumb img{
      transform: scale(1.03);
    }
    .featured-thumb::after{
      content:"";
      position:absolute;
      inset:0;
      background: linear-gradient(180deg, transparent 45%, rgba(15,10,8,.20) 100%);
      pointer-events:none;
    }
    .featured-body{
      padding:18px 18px 20px;
      display:flex;
      flex-direction:column;
      gap:12px;
      flex:1;
    }
    .card-meta{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      line-height:1;
      background: rgba(125,31,43,.08);
      color: var(--primary);
      border:1px solid rgba(125,31,43,.10);
    }
    .badge.accent{
      background: rgba(180,138,82,.10);
      color: #8a6430;
      border-color: rgba(180,138,82,.16);
    }
    .time{
      color: var(--muted-2);
      font-size:12px;
    }
    .featured-body h3{
      margin:0;
      font-size:20px;
      line-height:1.45;
      color: var(--text);
    }
    .featured-body p{
      margin:0;
      color: var(--muted);
      line-height:1.9;
      font-size:14px;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
      min-height: 5.7em;
    }
    .card-footer{
      margin-top:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding-top:4px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color: var(--primary);
      font-weight:700;
      transition: color var(--transition), transform var(--transition);
    }
    .text-link:hover{
      color: var(--primary-deep);
      transform: translateX(2px);
    }
    .mini-note{
      color: var(--muted-2);
      font-size:12px;
    }

    .latest-layout{
      display:grid;
      grid-template-columns: minmax(0, 1.6fr) minmax(300px, .9fr);
      gap: var(--gap);
      align-items:start;
      margin-top: 26px;
    }
    .latest-board,
    .latest-side{
      background: rgba(255,250,246,.94);
      border:1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      overflow:hidden;
    }
    .latest-board-head,
    .latest-side-head{
      padding: 22px 22px 0;
    }
    .latest-board-head h3,
    .latest-side-head h3{
      margin:0;
      font-size:22px;
      line-height:1.3;
    }
    .latest-board-head p,
    .latest-side-head p{
      margin:8px 0 0;
      color: var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .latest-list{
      padding: 18px 18px 22px;
      display:grid;
      gap:12px;
    }
    .latest-item{
      display:block;
      padding:18px 18px 16px;
      border-radius: 18px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.76));
      border:1px solid rgba(125,31,43,.10);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    }
    .latest-item:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 36px rgba(31,20,14,.10);
      border-color: rgba(125,31,43,.20);
      background:#fff;
    }
    .latest-item h4{
      margin:10px 0 0;
      font-size:18px;
      line-height:1.5;
      color: var(--text);
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .latest-item p{
      margin:8px 0 0;
      color: var(--muted);
      font-size:14px;
      line-height:1.85;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .latest-item .row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
    }
    .latest-item .row .left{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .latest-item .arrow{
      color: var(--primary);
      font-weight:700;
      font-size:13px;
      white-space:nowrap;
      transition: transform var(--transition), color var(--transition);
    }
    .latest-item:hover .arrow{
      transform: translateX(3px);
      color: var(--primary-deep);
    }
    .empty-state{
      padding: 22px 18px 26px;
    }
    .empty-card{
      min-height: 200px;
      display:grid;
      place-items:center;
      text-align:center;
      border-radius: 22px;
      border:1px dashed rgba(125,31,43,.18);
      background:
        linear-gradient(180deg, rgba(125,31,43,.03), rgba(180,138,82,.03));
      color: var(--muted);
      padding: 24px;
    }
    .empty-card strong{
      display:block;
      color: var(--text);
      font-size:18px;
      margin-bottom:8px;
    }
    .empty-card span{
      max-width: 30ch;
      line-height:1.85;
      font-size:14px;
    }

    .latest-side{
      position:sticky;
      top: 104px;
    }
    .side-stack{
      padding: 18px 22px 22px;
      display:grid;
      gap:14px;
    }
    .side-panel{
      border-radius: 18px;
      border:1px solid rgba(125,31,43,.10);
      background: #fff;
      overflow:hidden;
    }
    .side-panel .thumb{
      aspect-ratio: 16 / 10;
      background:#2c221c;
      overflow:hidden;
    }
    .side-panel .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .side-panel .body{
      padding: 16px 16px 18px;
    }
    .side-panel h4{
      margin:0;
      font-size:18px;
      line-height:1.45;
      color: var(--text);
    }
    .side-panel p{
      margin:10px 0 0;
      color: var(--muted);
      font-size:14px;
      line-height:1.85;
    }
    .side-panel .body .btn{
      margin-top:14px;
      width:100%;
    }
    .side-list{
      display:grid;
      gap:10px;
    }
    .side-list .row-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 0;
      border-top:1px solid rgba(125,31,43,.08);
    }
    .side-list .row-item:first-child{ border-top:none; padding-top:0; }
    .side-list .bar{
      width:10px;
      height:10px;
      border-radius:999px;
      margin-top:8px;
      background: var(--accent);
      box-shadow:0 0 0 6px rgba(180,138,82,.12);
      flex:none;
    }
    .side-list strong{
      display:block;
      font-size:14px;
      color: var(--text);
      margin-bottom:2px;
    }
    .side-list span{
      display:block;
      font-size:13px;
      color: var(--muted);
      line-height:1.75;
    }

    .faq-grid{
      max-width: 940px;
      margin: 0 auto;
      display:grid;
      gap:12px;
    }
    details.faq-item{
      background: rgba(255,250,246,.94);
      border:1px solid var(--line);
      border-radius: 18px;
      box-shadow: var(--shadow);
      overflow:hidden;
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }
    details.faq-item[open]{
      border-color: rgba(125,31,43,.20);
      box-shadow: var(--shadow-strong);
    }
    details.faq-item:hover{
      transform: translateY(-2px);
    }
    summary.summary-btn{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 20px;
      font-weight:700;
      color: var(--text);
      outline:none;
    }
    summary::-webkit-details-marker{ display:none; }
    .faq-item summary .q{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .faq-item summary .q .icon{
      width:34px;
      height:34px;
      border-radius:12px;
      background: rgba(125,31,43,.08);
      color: var(--primary);
      display:grid;
      place-items:center;
      flex:none;
    }
    .faq-item summary .q span{
      line-height:1.5;
    }
    .faq-item summary .chev{
      width:24px;
      height:24px;
      border-radius:999px;
      background: rgba(180,138,82,.10);
      color: #8a6430;
      display:grid;
      place-items:center;
      flex:none;
      transition: transform var(--transition), background var(--transition);
    }
    details[open] summary .chev{
      transform: rotate(180deg);
      background: rgba(125,31,43,.10);
      color: var(--primary);
    }
    .faq-content{
      padding: 0 20px 18px 66px;
      color: var(--muted);
      font-size:14px;
      line-height:1.9;
    }

    .cta{
      padding: 0 0 88px;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius: 32px;
      background:
        linear-gradient(135deg, rgba(40,18,18,.96), rgba(86,20,32,.95)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#fff;
      padding: 44px;
      box-shadow: var(--shadow-strong);
      border: 1px solid rgba(255,255,255,.08);
    }
    .cta-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 20% 20%, rgba(180,138,82,.16), transparent 26%),
        radial-gradient(circle at 82% 26%, rgba(255,255,255,.08), transparent 22%);
      pointer-events:none;
    }
    .cta-content{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      flex-wrap:wrap;
    }
    .cta-copy{
      max-width: 760px;
    }
    .cta-copy h2{
      margin:0;
      font-size: clamp(28px, 3.8vw, 42px);
      line-height:1.15;
      letter-spacing:-.02em;
    }
    .cta-copy p{
      margin:12px 0 0;
      color: rgba(255,247,242,.84);
      line-height:1.9;
      font-size:15px;
      max-width: 58rem;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
    }
    .cta .btn-secondary{
      color:#fff;
      background: rgba(255,255,255,.06);
      border-color: rgba(255,255,255,.18);
    }
    .cta .btn-secondary:hover{
      background: rgba(255,255,255,.12);
      border-color: rgba(255,255,255,.28);
      color:#fff;
    }

    .site-footer{
      background: linear-gradient(180deg, #201713, #18110e);
      color: rgba(255,247,242,.82);
      padding: 34px 0 28px;
      border-top:1px solid rgba(255,255,255,.06);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.15fr .7fr .85fr;
      gap:24px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .footer-brand .name{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .footer-brand strong{
      font-size:18px;
      color:#fff;
    }
    .footer-brand p{
      margin:0;
      color: rgba(255,247,242,.72);
      font-size:14px;
      line-height:1.85;
      max-width: 42rem;
    }
    .footer-col h3{
      margin:0 0 12px;
      font-size:15px;
      color:#fff;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color: rgba(255,247,242,.72);
      transition: color var(--transition), transform var(--transition);
      display:inline-flex;
      width: fit-content;
      align-items:center;
      gap:8px;
    }
    .footer-links a:hover{
      color:#fff;
      transform: translateX(2px);
    }
    .footer-note{
      margin-top: 18px;
      padding-top: 18px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      justify-content:space-between;
      color: rgba(255,247,242,.62);
      font-size:13px;
      line-height:1.8;
    }

    .badge-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:20px;
    }
    .badge-row .badge{
      background: rgba(255,255,255,.08);
      color: rgba(255,247,242,.92);
      border-color: rgba(255,255,255,.12);
    }

    .anchor-offset{
      scroll-margin-top: 108px;
    }

    .subtle-panel{
      background: rgba(255,250,246,.82);
      border:1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: 22px;
    }

    .visually-hidden{
      position:absolute !important;
      width:1px !important;
      height:1px !important;
      padding:0 !important;
      margin:-1px !important;
      overflow:hidden !important;
      clip:rect(0, 0, 0, 0) !important;
      white-space:nowrap !important;
      border:0 !important;
    }

    @media (max-width: 1200px){
      .hero-grid{ grid-template-columns: 1fr; }
      .hero-visual{ min-height: 440px; }
      .feature-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
      .featured-card,
      .featured-card.lead{ grid-column: span 6; }
      .latest-layout{ grid-template-columns: 1fr; }
      .latest-side{ position:static; }
      .footer-grid{ grid-template-columns: 1fr 1fr; }
      .footer-col:last-child{ grid-column: 1 / -1; }
    }

    @media (max-width: 992px){
      .site-header .container{
        flex-wrap:wrap;
      }
      .site-nav{
        width:100%;
        order:3;
        margin-left:0;
        display:block;
      }
      .nav-toggle-btn{
        display:inline-flex;
      }
      .nav-links{
        display:none;
        width:100%;
        padding: 14px 0 0;
      }
      .nav-toggle:checked ~ .site-nav .nav-links{
        display:flex;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
      }
      .nav-links a{
        justify-content:space-between;
        background: rgba(255,255,255,.64);
        border:1px solid rgba(125,31,43,.08);
      }
      .header-actions{
        margin-left:auto;
      }
      .hero .container{
        padding: 58px 0 44px;
      }
      .section{ padding: 72px 0; }
      .cta-card{ padding: 34px 24px; }
      .footer-grid{ grid-template-columns: 1fr; }
    }

    @media (max-width: 768px){
      .topbar .container{
        flex-direction:column;
        align-items:flex-start;
      }
      .hero h1{ max-width: 100%; }
      .hero-visual{
        grid-template-columns: 1fr;
        min-height: auto;
      }
      .hero-stack{
        grid-template-rows: repeat(2, 220px);
      }
      .hero-note{
        display:grid;
        grid-template-columns: 1fr;
      }
      .feature-grid{
        grid-template-columns: 1fr;
      }
      .featured-grid{
        grid-template-columns: 1fr;
      }
      .featured-card,
      .featured-card.lead{
        grid-column: auto;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .latest-board-head,
      .latest-side-head{
        padding-left: 18px;
        padding-right:18px;
      }
      .faq-content{
        padding-left: 20px;
      }
      .cta-content{
        flex-direction:column;
        align-items:flex-start;
      }
    }

    @media (max-width: 520px){
      .container{ width:min(var(--container), calc(100% - 24px)); }
      .brand-text strong{ font-size:16px; }
      .hero h1{ font-size: 34px; }
      .hero p,
      .section-subtitle,
      .cta-copy p{
        font-size:14px;
      }
      .btn{
        width:100%;
      }
      .header-actions{
        width:100%;
      }
      .header-actions .btn{
        width:auto;
        flex:1;
      }
      .cta-actions{
        width:100%;
      }
      .cta-actions .btn{
        width:100%;
      }
      .latest-item{
        padding:16px 15px 15px;
      }
      .summary-btn{
        padding:16px;
      }
      .site-footer{
        padding-bottom: 20px;
      }
      .footer-note{
        flex-direction:column;
        gap:8px;
      }
    }

    @media (max-width: 480px){
      .hero .container{
        padding-top: 46px;
      }
      .hero-stack{
        grid-template-rows: repeat(2, 190px);
      }
      .hero-frame-caption strong,
      .hero-stack-content h3{
        font-size:16px;
      }
      .section{
        padding: 64px 0;
      }
      .cta-card{
        border-radius: 24px;
      }
      .latest-board,
      .latest-side,
      .feature-card,
      .featured-card,
      details.faq-item{
        border-radius: 16px;
      }
    }

/* roulang page: article */
:root{
      --bg: #f6efe8;
      --bg-soft: #efe4d8;
      --surface: #fffaf6;
      --surface-2: #241c18;
      --surface-3: #1a1411;
      --primary: #7d1f2b;
      --primary-deep: #5f1320;
      --primary-soft: rgba(125,31,43,.12);
      --accent: #b48a52;
      --accent-soft: rgba(180,138,82,.16);
      --text: #261e1a;
      --muted: #7e6f67;
      --muted-2: #a08f85;
      --line: rgba(125,31,43,.14);
      --line-2: rgba(255,255,255,.09);
      --shadow: 0 18px 38px rgba(31,20,14,.08);
      --shadow-strong: 0 30px 70px rgba(31,20,14,.16);
      --radius: 18px;
      --radius-lg: 28px;
      --radius-xl: 36px;
      --container: 1240px;
      --gap: 24px;
      --transition: .24s ease;
      --header-h: 84px;
    }

    html{ scroll-behavior:smooth; }
    body{
      margin:0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(125,31,43,.08), transparent 36%),
        radial-gradient(circle at bottom right, rgba(180,138,82,.09), transparent 28%),
        linear-gradient(180deg, #faf5ef 0%, #f3ebe2 42%, #f6efe8 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    ::selection{
      background: rgba(125,31,43,.16);
      color: var(--text);
    }
    img{ max-width:100%; display:block; }
    a{ color:inherit; text-decoration:none; }
    button,input,textarea,select{ font:inherit; }
    *{ box-sizing:border-box; }
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .visually-hidden{
      position:absolute !important;
      width:1px;height:1px;
      padding:0;margin:-1px;
      overflow:hidden;clip:rect(0,0,0,0);
      white-space:nowrap;border:0;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter:saturate(130%) blur(10px);
      background: rgba(246,239,232,.86);
      border-bottom:1px solid rgba(125,31,43,.09);
      box-shadow: 0 12px 24px rgba(34,22,15,.04);
    }
    .site-header .container{
      min-height: var(--header-h);
      display:flex;
      align-items:center;
      gap:18px;
      padding:14px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      flex:none;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background: linear-gradient(145deg, var(--primary), var(--primary-deep));
      color:#fff;
      display:grid;
      place-items:center;
      font-weight:800;
      letter-spacing:.6px;
      box-shadow: 0 14px 26px rgba(125,31,43,.22);
      flex:none;
    }
    .brand-text{
      min-width:0;
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-text strong{
      font-size:18px;
      color: var(--text);
      letter-spacing:.2px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      margin-top:4px;
      font-size:12px;
      color: var(--muted);
    }

    .nav-toggle{
      position:absolute;
      opacity:0;
      pointer-events:none;
    }
    .nav-toggle-btn{
      display:none;
      margin-left:auto;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      align-items:center;
      justify-content:center;
      color: var(--text);
      background: rgba(255,255,255,.6);
      cursor:pointer;
      transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
      user-select:none;
    }
    .nav-toggle-btn:hover{
      transform: translateY(-1px);
      background:#fff;
      box-shadow: var(--shadow);
      border-color: rgba(125,31,43,.24);
    }
    .nav-toggle-btn:active{ transform: translateY(0); }

    .site-nav{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:18px;
      min-width:0;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      flex-wrap:wrap;
    }
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      padding:10px 13px;
      border-radius:999px;
      color: var(--muted);
      transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
      outline:none;
    }
    .nav-links a::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:7px;
      height:1px;
      background: currentColor;
      transform: scaleX(0);
      transform-origin:center;
      transition: transform var(--transition);
      opacity:.65;
    }
    .nav-links a:hover{
      color: var(--primary);
      background: rgba(125,31,43,.06);
      transform: translateY(-1px);
    }
    .nav-links a:hover::after,
    .nav-links a:focus-visible::after{
      transform: scaleX(1);
    }
    .nav-links a:focus-visible,
    .btn:focus-visible,
    .quick-links a:focus-visible,
    .footer-links a:focus-visible{
      outline: 3px solid rgba(125,31,43,.24);
      outline-offset: 2px;
    }
    .nav-links a.active{
      color: var(--primary);
      background: rgba(125,31,43,.08);
    }
    .nav-links a.active::after{ transform:scaleX(1); }

    .header-actions{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:10px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:12px 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.15px;
      cursor:pointer;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition), filter var(--transition);
      user-select:none;
      text-decoration:none !important;
      line-height:1;
      min-height:46px;
    }
    .btn:hover{
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }
    .btn:active{
      transform: translateY(0);
      box-shadow:none;
      filter:saturate(1.03);
    }
    .btn-primary{
      color:#fff;
      background: linear-gradient(145deg, var(--primary), var(--primary-deep));
      box-shadow: 0 14px 24px rgba(125,31,43,.18);
    }
    .btn-primary:hover{
      color:#fff;
      background: linear-gradient(145deg, #8d2332, var(--primary));
    }
    .btn-secondary{
      color: var(--primary);
      background: rgba(255,255,255,.72);
      border-color: rgba(125,31,43,.18);
      box-shadow: 0 10px 18px rgba(31,20,14,.05);
    }
    .btn-secondary:hover{
      color: var(--primary-deep);
      background: #fff;
      border-color: rgba(125,31,43,.28);
    }
    .btn.small{
      min-height:40px;
      padding:10px 14px;
      font-size:14px;
    }
    .btn.block{
      width:100%;
    }
    .btn.disabled,
    .btn:disabled{
      opacity:.56;
      pointer-events:none;
      transform:none !important;
      box-shadow:none !important;
    }

    .page-main{
      padding: 28px 0 72px;
    }

    .article-banner{
      padding: 24px 0 16px;
    }
    .banner-grid{
      display:grid;
      grid-template-columns: minmax(0,1.1fr) minmax(280px,.9fr);
      gap:28px;
      align-items:stretch;
    }
    .banner-copy{
      padding: 14px 0 8px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .crumbs{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:18px;
      color: var(--muted);
      font-size:14px;
    }
    .crumbs a{
      color: var(--muted);
      transition: color var(--transition);
    }
    .crumbs a:hover{
      color: var(--primary);
    }
    .crumbs span{
      color: var(--muted-2);
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:14px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      background: rgba(125,31,43,.08);
      color: var(--primary);
      border:1px solid rgba(125,31,43,.10);
    }
    .meta-pill.soft{
      background: rgba(180,138,82,.12);
      color: #8a6532;
      border-color: rgba(180,138,82,.16);
    }
    .banner-copy h1{
      margin:0;
      font-size: clamp(34px, 5vw, 64px);
      line-height:1.08;
      letter-spacing:-.02em;
      color: var(--text);
    }
    .banner-desc{
      margin:18px 0 24px;
      max-width: 62ch;
      color: var(--muted);
      font-size:17px;
      line-height:1.85;
    }
    .banner-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
    }

    .banner-art{
      min-width:0;
    }
    .art-frame{
      position:relative;
      height:100%;
      min-height:360px;
      border-radius: var(--radius-xl);
      overflow:hidden;
      box-shadow: var(--shadow-strong);
      border:1px solid rgba(255,255,255,.5);
      background: #2a1d18;
      isolation:isolate;
    }
    .art-frame::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(11,7,5,.08), rgba(11,7,5,.55)),
        radial-gradient(circle at 20% 20%, rgba(255,255,255,.12), transparent 34%);
      z-index:1;
      pointer-events:none;
    }
    .art-frame::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(125,31,43,.20), transparent 30%),
        linear-gradient(315deg, rgba(180,138,82,.16), transparent 35%);
      z-index:1;
      pointer-events:none;
      mix-blend-mode:multiply;
    }
    .art-frame img{
      width:100%;
      height:100%;
      object-fit:cover;
      min-height:360px;
      filter: saturate(.92) contrast(1.05) brightness(.82);
      transform: scale(1.02);
    }
    .art-chip{
      position:absolute;
      left:20px;
      bottom:20px;
      z-index:2;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      background: rgba(18,12,10,.64);
      color:#fff;
      font-weight:700;
      letter-spacing:.2px;
      box-shadow: 0 12px 26px rgba(0,0,0,.18);
      backdrop-filter: blur(8px);
    }

    .article-section{
      padding: 14px 0 24px;
    }
    .article-grid{
      display:grid;
      grid-template-columns: minmax(0, 1.04fr) minmax(290px, .52fr);
      gap:24px;
      align-items:start;
    }
    .article-card{
      background: var(--surface);
      border:1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding: 28px;
      overflow:hidden;
    }
    .article-tools{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-bottom:18px;
      margin-bottom:22px;
      border-bottom:1px solid var(--line);
    }
    .tool-group{
      min-width:0;
    }
    .tool-label{
      display:block;
      margin-bottom:8px;
      font-size:12px;
      letter-spacing:.12em;
      text-transform:uppercase;
      color: var(--muted-2);
      font-weight:700;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 12px;
      border-radius:999px;
      background: var(--accent-soft);
      color:#7a5a2d;
      border:1px solid rgba(180,138,82,.14);
      font-size:13px;
      font-weight:700;
    }
    .mini-actions{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      justify-content:flex-end;
    }
    .mini-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:7px 12px;
      border-radius:999px;
      border:1px dashed var(--line);
      background: rgba(255,255,255,.76);
      color: var(--muted);
      font-size:13px;
      font-weight:700;
    }

    .article-body{
      font-size:18px;
      line-height:1.95;
      color: var(--text);
      max-width: 820px;
      margin:0 auto;
    }
    .article-body > :first-child{ margin-top:0; }
    .article-body > :last-child{ margin-bottom:0; }
    .article-body h2,
    .article-body h3,
    .article-body h4,
    .article-body h5{
      line-height:1.35;
      color: var(--text);
      scroll-margin-top: calc(var(--header-h) + 24px);
    }
    .article-body h2{
      margin: 2.1em 0 .8em;
      font-size:1.6rem;
      padding-left:14px;
      border-left:4px solid var(--primary);
    }
    .article-body h3{
      margin: 1.8em 0 .7em;
      font-size:1.25rem;
    }
    .article-body p{
      margin: 1em 0;
    }
    .article-body strong{
      color: var(--text);
      font-weight:700;
    }
    .article-body a{
      color: var(--primary);
      border-bottom:1px solid rgba(125,31,43,.26);
      transition: color var(--transition), border-color var(--transition), background var(--transition);
    }
    .article-body a:hover{
      color: var(--primary-deep);
      border-color: var(--primary-deep);
      background: rgba(125,31,43,.04);
    }
    .article-body ul,
    .article-body ol{
      margin: 1em 0;
      padding-left: 1.35em;
    }
    .article-body li + li{ margin-top:.55em; }
    .article-body blockquote{
      margin:1.5em 0;
      padding:18px 20px;
      border-radius:18px;
      background: rgba(125,31,43,.06);
      border:1px solid rgba(125,31,43,.12);
      color: var(--text);
    }
    .article-body hr{
      border:0;
      border-top:1px solid var(--line);
      margin: 2em 0;
    }
    .article-body img{
      max-width:100%;
      height:auto;
      border-radius:20px;
      margin:1.4em 0;
      box-shadow: 0 14px 28px rgba(31,20,14,.09);
      object-fit:cover;
    }
    .article-body figure{
      margin: 1.4em 0;
    }
    .article-body figcaption{
      margin-top:8px;
      font-size:14px;
      color: var(--muted);
      line-height:1.65;
    }
    .article-body table{
      width:100%;
      border-collapse:collapse;
      margin:1.5em 0;
      font-size:15px;
      overflow:hidden;
      border-radius:18px;
      box-shadow: 0 10px 20px rgba(31,20,14,.05);
    }
    .article-body th,
    .article-body td{
      padding:12px 14px;
      border:1px solid var(--line);
      vertical-align:top;
      text-align:left;
    }
    .article-body th{
      background: rgba(125,31,43,.06);
      color: var(--text);
      font-weight:700;
    }
    .article-body pre{
      margin:1.5em 0;
      padding:18px;
      background:#231c18;
      color:#f8efe7;
      border-radius:18px;
      overflow:auto;
      box-shadow: 0 12px 24px rgba(0,0,0,.10);
    }
    .article-body code{
      padding:.18em .45em;
      border-radius:8px;
      background: rgba(125,31,43,.08);
      color: var(--primary-deep);
    }
    .article-body pre code{
      background:transparent;
      color:inherit;
      padding:0;
      border-radius:0;
    }

    .article-foot{
      margin-top:24px;
      padding-top:22px;
      border-top:1px solid var(--line);
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      align-items:center;
    }

    .sidebar{
      display:grid;
      gap:18px;
      position:sticky;
      top: calc(var(--header-h) + 18px);
    }
    .side-panel{
      background: var(--surface);
      border:1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      padding:22px;
    }
    .panel-kicker{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      background: var(--primary-soft);
      color: var(--primary-deep);
      font-size:12px;
      font-weight:700;
      margin-bottom:10px;
    }
    .side-panel h2,
    .panel-title{
      font-size:20px;
      margin:0 0 10px;
      line-height:1.35;
      color: var(--text);
    }
    .side-panel p{
      margin:0;
      color: var(--muted);
      line-height:1.8;
    }
    .side-panel + .side-panel{ margin-top:0; }
    .image-panel{
      overflow:hidden;
      padding:0;
    }
    .image-panel img{
      width:100%;
      height:220px;
      object-fit:cover;
      margin:0;
      border-radius:0;
      box-shadow:none;
      filter:saturate(.95) brightness(.95);
    }
    .image-panel-caption{
      padding:16px 18px 18px;
      display:flex;
      flex-direction:column;
      gap:4px;
    }
    .image-panel-caption strong{
      font-size:16px;
      color: var(--text);
    }
    .image-panel-caption span{
      font-size:13px;
      color: var(--muted);
      line-height:1.7;
    }
    .quick-links{
      display:grid;
      gap:10px;
    }
    .quick-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 14px;
      border-radius:14px;
      border:1px solid var(--line);
      background: rgba(255,255,255,.7);
      color: var(--text);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition), background var(--transition);
    }
    .quick-links a:hover{
      transform: translateY(-2px);
      border-color: rgba(125,31,43,.25);
      box-shadow: var(--shadow);
      color: var(--primary);
      background:#fff;
    }
    .quick-links a::after{
      content:"→";
      color: var(--muted-2);
      transition: transform var(--transition), color var(--transition);
    }
    .quick-links a:hover::after{
      color: var(--primary);
      transform: translateX(2px);
    }

    .empty-state{
      min-height:360px;
      display:grid;
      place-items:center;
      text-align:center;
      padding:32px 20px;
    }
    .empty-inner{
      max-width: 40rem;
    }
    .empty-icon{
      width:68px;
      height:68px;
      border-radius:24px;
      background: var(--primary-soft);
      color: var(--primary);
      display:grid;
      place-items:center;
      font-size:30px;
      font-weight:800;
      margin:0 auto 14px;
    }
    .empty-state h2{
      font-size:28px;
      margin:0 0 10px;
      color: var(--text);
    }
    .empty-state p{
      margin:0 0 20px;
      color: var(--muted);
      line-height:1.85;
    }

    .site-footer{
      margin-top: 18px;
      background: linear-gradient(180deg, #241b17 0%, #1b1411 100%);
      color: rgba(255,248,243,.86);
      padding:42px 0 24px;
      border-top:1px solid rgba(255,255,255,.06);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .8fr .8fr;
      gap:24px;
    }
    .footer-brand .name{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
      min-width:0;
    }
    .footer-brand .name strong{
      font-size:18px;
      color:#fff;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .footer-brand p{
      color: rgba(255,248,243,.68);
      margin:0;
      max-width: 34em;
      line-height:1.9;
    }
    .footer-col h3{
      font-size:16px;
      margin:0 0 12px;
      color:#fff;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color: rgba(255,248,243,.74);
      transition: color var(--transition), transform var(--transition), opacity var(--transition);
    }
    .footer-links a:hover{
      color:#fff;
      transform: translateX(2px);
    }
    .footer-note{
      margin-top:24px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:10px;
      flex-wrap:wrap;
      color: rgba(255,248,243,.56);
      font-size:13px;
    }

    @media (max-width: 1200px){
      .banner-grid,
      .article-grid{
        grid-template-columns:1fr;
      }
      .sidebar{
        position:static;
      }
      .art-frame{
        min-height:300px;
      }
    }

    @media (max-width: 992px){
      .nav-toggle-btn{
        display:flex;
      }
      .site-nav{
        position:fixed;
        left:16px;
        right:16px;
        top: calc(var(--header-h) - 2px);
        margin-left:0;
        padding:14px;
        border-radius:24px;
        background: rgba(246,239,232,.98);
        border:1px solid var(--line);
        box-shadow: var(--shadow-strong);
        opacity:0;
        visibility:hidden;
        pointer-events:none;
        transform: translateY(-12px);
        transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
      }
      .nav-toggle:checked ~ .site-nav{
        opacity:1;
        visibility:visible;
        pointer-events:auto;
        transform: translateY(0);
      }
      .nav-links{
        width:100%;
        flex-direction:column;
        align-items:stretch;
      }
      .nav-links a{
        width:100%;
        justify-content:space-between;
        padding:12px 14px;
      }
      .header-actions{
        display:none;
      }
      .site-header .container{
        justify-content:space-between;
      }
    }

    @media (max-width: 768px){
      .page-main{
        padding-top: 18px;
      }
      .banner-copy h1{
        font-size: clamp(30px, 11vw, 44px);
      }
      .banner-desc{
        font-size:16px;
        margin-bottom:18px;
      }
      .article-card,
      .side-panel{
        padding:20px;
      }
      .article-body{
        font-size:16px;
        line-height:1.9;
      }
      .article-body h2{
        font-size:1.34rem;
      }
      .article-body h3{
        font-size:1.12rem;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
      .footer-note{
        flex-direction:column;
      }
    }

    @media (max-width: 520px){
      .container{
        width:min(var(--container), calc(100% - 24px));
      }
      .site-header .container{
        min-height:72px;
        padding:12px 0;
      }
      .brand-mark{
        width:38px;
        height:38px;
        border-radius:12px;
      }
      .brand-text strong{
        font-size:16px;
      }
      .brand-text span{
        font-size:11px;
      }
      .meta-row,
      .banner-actions,
      .article-foot,
      .footer-note{
        gap:8px;
      }
      .banner-actions .btn,
      .article-foot .btn,
      .side-panel .btn{
        width:100%;
      }
      .article-tools{
        flex-direction:column;
      }
      .mini-actions{
        justify-content:flex-start;
      }
      .empty-state h2{
        font-size:24px;
      }
      .art-chip{
        left:14px;
        bottom:14px;
        padding:9px 12px;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}