/* roulang page: index */
:root{
      --bg: #f5efe9;
      --bg-soft: #fbf8f5;
      --surface: rgba(255,255,255,.78);
      --surface-strong: #ffffff;
      --surface-dark: #221d1b;
      --text: #231d1a;
      --muted: #6f645e;
      --muted-2: #8f857e;
      --line: rgba(77, 61, 55, .12);
      --line-strong: rgba(77, 61, 55, .18);
      --brand: #9c4f3d;
      --brand-2: #c66b52;
      --accent: #d6a15f;
      --accent-2: #7a5b4a;
      --good: #4a7d67;
      --shadow: 0 18px 40px rgba(42, 32, 28, .08);
      --shadow-soft: 0 10px 24px rgba(42, 32, 28, .06);
      --radius: 22px;
      --radius-lg: 30px;
      --radius-sm: 14px;
      --container: 1180px;
      --gap: 22px;
      --gap-lg: 34px;
      --transition: .24s ease;
    }
    *{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 SC", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 520px at 10% -10%, rgba(214,161,95,.16), transparent 60%),
        radial-gradient(900px 460px at 90% 0%, rgba(156,79,61,.10), transparent 55%),
        linear-gradient(180deg, #fbf7f2 0%, #f5efe9 28%, #f3ece5 100%);
      line-height:1.72;
      min-height:100vh;
      overflow-x:hidden;
    }
    img{
      max-width:100%;
      display:block;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition), opacity var(--transition);
    }
    a:hover{
      color:var(--brand);
    }
    button,
    input{
      font:inherit;
    }
    button{
      border:0;
      background:none;
      padding:0;
      cursor:pointer;
    }
    input{
      outline:none;
    }
    ::selection{
      background: rgba(156,79,61,.18);
      color: var(--text);
    }
    .container{
      width:min(100% - 32px, var(--container));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter: blur(16px);
      background: rgba(248,243,238,.76);
      border-bottom:1px solid rgba(77,61,55,.08);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background:
        linear-gradient(145deg, rgba(156,79,61,.98), rgba(198,107,82,.88));
      box-shadow: 0 12px 24px rgba(156,79,61,.26);
      position:relative;
      flex:none;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:auto;
      background:rgba(255,255,255,.92);
      border-radius:999px;
    }
    .brand-mark::before{
      width:14px;
      height:14px;
      left:11px;
      top:10px;
    }
    .brand-mark::after{
      width:8px;
      height:8px;
      right:11px;
      bottom:10px;
      opacity:.9;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand-text strong{
      font-size:1rem;
      letter-spacing:.02em;
      line-height:1.2;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      font-size:.78rem;
      color:var(--muted);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .nav-list{
      display:flex;
      align-items:center;
      gap:8px;
      list-style:none;
      margin:0;
      padding:0;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-weight:600;
      font-size:.95rem;
      border:1px solid transparent;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.8);
      border-color:rgba(77,61,55,.10);
      box-shadow: var(--shadow-soft);
      outline:none;
    }
    .nav-link.is-active{
      background:rgba(156,79,61,.09);
      border-color:rgba(156,79,61,.14);
      color:var(--brand);
    }
    .nav-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(77,61,55,.12);
      background:rgba(255,255,255,.82);
      box-shadow: var(--shadow-soft);
      align-items:center;
      justify-content:center;
      gap:5px;
      flex-direction:column;
    }
    .nav-toggle span{
      width:18px;
      height:2px;
      border-radius:999px;
      background:var(--text);
      display:block;
    }
    .hero{
      position:relative;
      padding:28px 0 18px;
    }
    .hero-panel{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(24,18,16,.78), rgba(42,32,28,.62)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow: 0 26px 60px rgba(31,22,18,.18);
      border:1px solid rgba(255,255,255,.18);
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(700px 300px at 15% 15%, rgba(214,161,95,.16), transparent 60%),
        linear-gradient(180deg, rgba(0,0,0,.06), rgba(0,0,0,.16));
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:28px;
      align-items:center;
      padding:42px;
      min-height:560px;
    }
    .hero-copy{
      color:#fff7f2;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 14px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background: rgba(255,255,255,.08);
      color: rgba(255,255,255,.92);
      font-size:.88rem;
      letter-spacing:.02em;
      margin-bottom:18px;
      backdrop-filter: blur(8px);
    }
    .eyebrow i{
      width:8px;
      height:8px;
      display:inline-block;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(214,161,95,.16);
    }
    .hero h1{
      margin:0;
      font-size:clamp(2.1rem, 4.3vw, 4.1rem);
      line-height:1.1;
      letter-spacing:-.03em;
      max-width:12ch;
    }
    .hero p{
      margin:18px 0 0;
      font-size:1.04rem;
      max-width:58ch;
      color:rgba(255,247,242,.86);
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 18px;
      border-radius:999px;
      font-weight:700;
      border:1px solid transparent;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow: 0 16px 30px rgba(156,79,61,.24);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      transform: translateY(-1px);
      box-shadow: 0 20px 36px rgba(156,79,61,.30);
      outline:none;
    }
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.18);
      backdrop-filter: blur(8px);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      background:rgba(255,255,255,.12);
      transform: translateY(-1px);
      outline:none;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      color:rgba(255,247,242,.92);
      font-size:.88rem;
    }
    .tag::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:999px;
      background:var(--accent);
    }
    .hero-visual{
      display:grid;
      grid-template-columns: 1fr 170px;
      gap:14px;
      align-items:stretch;
      min-height:470px;
    }
    .hero-visual-main{
      position:relative;
      border-radius:28px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.14);
      background:#111;
      box-shadow: 0 18px 36px rgba(17,12,10,.20);
      min-height:470px;
    }
    .hero-visual-main img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(1.02) contrast(1.02);
      transform:scale(1.02);
    }
    .hero-visual-main::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(0,0,0,.08), rgba(0,0,0,.36));
      pointer-events:none;
    }
    .hero-note{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      z-index:1;
      padding:16px 16px 14px;
      border-radius:20px;
      background:rgba(23,18,16,.64);
      backdrop-filter: blur(12px);
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
    }
    .hero-note strong{
      display:block;
      font-size:1rem;
      margin-bottom:4px;
    }
    .hero-note span{
      display:block;
      color:rgba(255,255,255,.80);
      font-size:.9rem;
    }
    .hero-visual-side{
      display:grid;
      gap:14px;
    }
    .hero-mini{
      position:relative;
      overflow:hidden;
      border-radius:24px;
      background:var(--surface-strong);
      border:1px solid rgba(255,255,255,.18);
      box-shadow: var(--shadow-soft);
      min-height:228px;
    }
    .hero-mini img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .hero-mini .mini-copy{
      position:absolute;
      left:14px;
      right:14px;
      bottom:14px;
      padding:12px 12px 11px;
      border-radius:16px;
      background:rgba(255,255,255,.84);
      border:1px solid rgba(77,61,55,.10);
      box-shadow: 0 10px 20px rgba(39,30,27,.08);
    }
    .hero-mini .mini-copy b{
      display:block;
      font-size:.98rem;
      margin-bottom:4px;
    }
    .hero-mini .mini-copy small{
      color:var(--muted);
      line-height:1.55;
      font-size:.85rem;
    }
    .section{
      padding:28px 0;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:18px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(1.45rem, 2vw, 2rem);
      line-height:1.2;
      letter-spacing:-.02em;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:62ch;
      font-size:.98rem;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:var(--gap);
    }
    .feature-card{
      background:var(--surface);
      border:1px solid rgba(77,61,55,.10);
      border-radius:var(--radius);
      box-shadow: var(--shadow-soft);
      padding:20px;
      min-height:162px;
      backdrop-filter: blur(12px);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .feature-card:hover{
      transform: translateY(-3px);
      box-shadow: var(--shadow);
      border-color: rgba(156,79,61,.18);
    }
    .feature-ico{
      width:44px;
      height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(156,79,61,.12), rgba(214,161,95,.16));
      border:1px solid rgba(156,79,61,.12);
      color:var(--brand);
      font-weight:800;
      margin-bottom:14px;
    }
    .feature-card h3{
      margin:0 0 8px;
      font-size:1.06rem;
      line-height:1.35;
    }
    .feature-card p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.68;
    }
    .updates{
      padding-top:34px;
    }
    .updates-wrap{
      display:grid;
      grid-template-columns: 1.45fr .72fr;
      gap:var(--gap-lg);
      align-items:start;
    }
    .card-shell{
      background:rgba(255,255,255,.76);
      border:1px solid rgba(77,61,55,.10);
      border-radius:var(--radius-lg);
      box-shadow: var(--shadow);
      overflow:hidden;
    }
    .updates-main{
      padding:22px;
    }
    .updates-grid{
      display:grid;
      gap:14px;
    }
    .update-card{
      display:block;
      padding:18px 18px 17px;
      border-radius:22px;
      background:rgba(255,255,255,.90);
      border:1px solid rgba(77,61,55,.10);
      box-shadow: 0 10px 22px rgba(37,28,25,.05);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    }
    .update-card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(37,28,25,.10);
      border-color: rgba(156,79,61,.16);
      background:#fff;
    }
    .update-card__top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:12px;
      color:var(--muted);
      font-size:.86rem;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:30px;
      padding:0 10px;
      border-radius:999px;
      font-size:.82rem;
      font-weight:700;
      color:var(--brand);
      background:rgba(156,79,61,.08);
      border:1px solid rgba(156,79,61,.12);
      white-space:nowrap;
    }
    .badge::before{
      content:"";
      width:6px;
      height:6px;
      border-radius:999px;
      background:var(--brand-2);
    }
    .update-card h3{
      margin:0 0 10px;
      font-size:1.08rem;
      line-height:1.45;
      letter-spacing:-.01em;
    }
    .update-card p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.72;
    }
    .update-card__bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:14px;
      padding-top:14px;
      border-top:1px dashed rgba(77,61,55,.14);
      color:var(--brand);
      font-weight:700;
      font-size:.92rem;
    }
    .update-card__arrow{
      width:28px;
      height:28px;
      border-radius:999px;
      display:grid;
      place-items:center;
      background:rgba(156,79,61,.10);
      color:var(--brand);
      flex:none;
    }
    .updates-side{
      display:grid;
      gap:16px;
    }
    .side-panel{
      padding:20px;
    }
    .side-panel h3{
      margin:0 0 12px;
      font-size:1.02rem;
      line-height:1.35;
    }
    .check-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.62;
    }
    .check-list i{
      width:20px;
      height:20px;
      border-radius:50%;
      flex:none;
      margin-top:2px;
      background:rgba(74,125,103,.12);
      color:var(--good);
      display:grid;
      place-items:center;
      font-style:normal;
      font-size:.84rem;
      font-weight:800;
    }
    .chip-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(77,61,55,.10);
      color:var(--text);
      font-size:.88rem;
      font-weight:600;
      box-shadow: 0 8px 18px rgba(37,28,25,.04);
    }
    .reading{
      padding-top:16px;
    }
    .reading-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap:var(--gap);
    }
    .quote-card{
      padding:22px;
      background:var(--surface);
      border:1px solid rgba(77,61,55,.10);
      border-radius:var(--radius);
      box-shadow: var(--shadow-soft);
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .quote-card:hover{
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }
    .quote-mark{
      display:inline-flex;
      width:36px;
      height:36px;
      border-radius:12px;
      align-items:center;
      justify-content:center;
      background:rgba(214,161,95,.14);
      color:var(--accent-2);
      font-size:1.2rem;
      font-weight:800;
      margin-bottom:12px;
    }
    .quote-card p{
      margin:0;
      color:var(--text);
      font-size:.98rem;
      line-height:1.8;
    }
    .quote-meta{
      margin-top:14px;
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:.88rem;
    }
    .avatar{
      width:32px;
      height:32px;
      border-radius:999px;
      background:linear-gradient(135deg, rgba(156,79,61,.16), rgba(214,161,95,.22));
      display:grid;
      place-items:center;
      color:var(--brand);
      font-weight:800;
      border:1px solid rgba(156,79,61,.10);
    }
    .showcase{
      padding-top:20px;
    }
    .showcase-grid{
      display:grid;
      grid-template-columns: 1.02fr .98fr;
      gap:var(--gap-lg);
      align-items:stretch;
    }
    .showcase-image{
      position:relative;
      overflow:hidden;
      min-height:420px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(77,61,55,.10);
      box-shadow: var(--shadow);
      background:#241b19;
    }
    .showcase-image img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .showcase-image::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(17,12,10,.02), rgba(17,12,10,.46));
      pointer-events:none;
    }
    .showcase-overlay{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      z-index:1;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.84);
      border:1px solid rgba(77,61,55,.10);
      box-shadow: 0 12px 24px rgba(37,28,25,.10);
    }
    .showcase-overlay strong{
      display:block;
      font-size:1.02rem;
      margin-bottom:6px;
    }
    .showcase-overlay p{
      margin:0;
      color:var(--muted);
      line-height:1.72;
      font-size:.95rem;
    }
    .showcase-copy{
      display:grid;
      gap:14px;
    }
    .info-card{
      padding:20px;
      background:var(--surface);
      border:1px solid rgba(77,61,55,.10);
      border-radius:var(--radius);
      box-shadow: var(--shadow-soft);
    }
    .info-card h3{
      margin:0 0 10px;
      font-size:1.02rem;
    }
    .info-card p{
      margin:0;
      color:var(--muted);
      line-height:1.72;
      font-size:.95rem;
    }
    .info-points{
      margin-top:14px;
      display:grid;
      gap:10px;
    }
    .point{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:.94rem;
      line-height:1.62;
    }
    .point b{
      color:var(--text);
    }
    .point .dot{
      width:10px;
      height:10px;
      border-radius:999px;
      margin-top:7px;
      background:var(--brand);
      box-shadow:0 0 0 5px rgba(156,79,61,.10);
      flex:none;
    }
    .faq{
      padding-top:18px;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border-radius:20px;
      background:rgba(255,255,255,.80);
      border:1px solid rgba(77,61,55,.10);
      box-shadow: var(--shadow-soft);
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:700;
      font-size:1rem;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      outline:none;
    }
    .faq-item summary::-webkit-details-marker{
      display:none;
    }
    .faq-item summary::after{
      content:"+";
      width:32px;
      height:32px;
      border-radius:999px;
      display:grid;
      place-items:center;
      background:rgba(156,79,61,.08);
      color:var(--brand);
      flex:none;
      transition: transform var(--transition), background var(--transition);
    }
    .faq-item[open] summary{
      border-bottom:1px solid rgba(77,61,55,.10);
    }
    .faq-item[open] summary::after{
      content:"–";
      background:rgba(156,79,61,.12);
    }
    .faq-body{
      padding:0 20px 18px;
      color:var(--muted);
      font-size:.96rem;
      line-height:1.8;
    }
    .faq-body p{
      margin:14px 0 0;
    }
    .cta{
      padding:34px 0 10px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(35,29,26,.98), rgba(57,44,39,.96));
      border:1px solid rgba(255,255,255,.10);
      box-shadow: 0 28px 64px rgba(26,18,15,.22);
    }
    .cta-box::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(700px 260px at 8% 10%, rgba(214,161,95,.16), transparent 60%),
        radial-gradient(500px 200px at 90% 12%, rgba(198,107,82,.12), transparent 55%);
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns: 1fr auto;
      gap:24px;
      align-items:center;
      padding:34px;
      color:#fff7f2;
    }
    .cta-inner h2{
      margin:0 0 12px;
      font-size:clamp(1.5rem, 2.4vw, 2.2rem);
      line-height:1.22;
    }
    .cta-inner p{
      margin:0;
      color:rgba(255,247,242,.82);
      max-width:58ch;
      line-height:1.78;
    }
    .cta-form{
      display:flex;
      align-items:stretch;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .cta-field{
      min-width:min(420px, 100%);
      flex:1;
      min-height:52px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.10);
      color:#fff;
      padding:0 18px;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
    }
    .cta-field::placeholder{
      color:rgba(255,255,255,.55);
    }
    .cta-help{
      margin-top:10px;
      color:rgba(255,247,242,.72);
      font-size:.84rem;
      line-height:1.6;
      text-align:right;
    }
    .site-footer{
      padding:26px 0 34px;
    }
    .footer-box{
      padding:24px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(77,61,55,.10);
      border-radius:var(--radius-lg);
      box-shadow: var(--shadow-soft);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr 1fr;
      gap:24px;
    }
    .footer-brand strong{
      display:block;
      font-size:1.08rem;
      margin-bottom:10px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      line-height:1.76;
      font-size:.95rem;
      max-width:42ch;
    }
    .footer-title{
      font-size:.98rem;
      font-weight:800;
      margin-bottom:12px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:.94rem;
      line-height:1.6;
      width:fit-content;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:var(--brand);
      outline:none;
    }
    .footer-note{
      margin-top:22px;
      padding-top:16px;
      border-top:1px solid rgba(77,61,55,.10);
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:10px;
      color:var(--muted-2);
      font-size:.86rem;
      line-height:1.6;
    }
    .empty-state{
      padding:24px;
      border-radius:22px;
      border:1px dashed rgba(156,79,61,.26);
      background:rgba(156,79,61,.05);
      color:var(--text);
      font-weight:600;
    }
    .section-anchor{
      scroll-margin-top:92px;
    }
    .back-top{
      position:fixed;
      right:18px;
      bottom:18px;
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow: 0 16px 28px rgba(156,79,61,.28);
      z-index:900;
      opacity:.92;
    }
    .back-top:hover,
    .back-top:focus-visible{
      transform: translateY(-2px);
      opacity:1;
      outline:none;
    }
    .back-top svg{
      width:18px;
      height:18px;
    }
    @media (max-width: 1100px){
      .hero-inner{
        grid-template-columns:1fr;
        min-height:auto;
      }
      .hero-visual{
        grid-template-columns:1fr 1fr;
        min-height:auto;
      }
      .hero-visual-main{
        min-height:420px;
      }
      .feature-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .updates-wrap,
      .showcase-grid,
      .footer-grid,
      .reading-grid{
        grid-template-columns:1fr;
      }
      .cta-inner{
        grid-template-columns:1fr;
      }
      .cta-form{
        justify-content:flex-start;
      }
      .cta-help{
        text-align:left;
      }
    }
    @media (max-width: 768px){
      .header-inner{
        min-height:68px;
      }
      .nav-toggle{
        display:inline-flex;
      }
      .nav{
        position:fixed;
        left:16px;
        right:16px;
        top:84px;
        padding:12px;
        border-radius:22px;
        background:rgba(248,243,238,.96);
        border:1px solid rgba(77,61,55,.10);
        box-shadow: 0 24px 50px rgba(39,30,27,.14);
        transform: translateY(-16px);
        opacity:0;
        pointer-events:none;
        transition: opacity var(--transition), transform var(--transition);
      }
      .nav.is-open{
        opacity:1;
        transform: translateY(0);
        pointer-events:auto;
      }
      .nav-list{
        width:100%;
        flex-direction:column;
        align-items:stretch;
      }
      .nav-link{
        justify-content:flex-start;
        width:100%;
        border-radius:16px;
        background:#fff;
        border-color:rgba(77,61,55,.10);
      }
      .hero{
        padding-top:18px;
      }
      .hero-panel{
        border-radius:26px;
      }
      .hero-inner{
        padding:22px;
        gap:18px;
      }
      .hero h1{
        max-width:none;
      }
      .hero-visual{
        grid-template-columns:1fr;
      }
      .hero-visual-main,
      .hero-mini{
        min-height:280px;
      }
      .feature-grid{
        grid-template-columns:1fr;
      }
      .updates-main,
      .side-panel,
      .footer-box{
        padding:18px;
      }
      .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .cta-inner{
        padding:22px;
      }
      .cta-field{
        min-width:100%;
      }
      .footer-note{
        flex-direction:column;
      }
    }
    @media (max-width: 520px){
      .container{
        width:min(100% - 24px, var(--container));
      }
      .hero p,
      .section-head p,
      .info-card p,
      .quote-card p,
      .faq-body,
      .footer-brand p{
        font-size:.93rem;
      }
      .btn{
        width:100%;
      }
      .hero-actions{
        gap:10px;
      }
      .hero-actions .btn{
        width:100%;
      }
      .hero-panel{
        box-shadow: 0 18px 42px rgba(31,22,18,.14);
      }
      .update-card__top{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-form .btn{
        width:100%;
      }
    }

/* roulang page: article */
:root{
      --bg: #f5efe9;
      --bg-soft: #fbf8f5;
      --surface: rgba(255,255,255,.78);
      --surface-strong: #ffffff;
      --surface-dark: #221d1b;
      --text: #231d1a;
      --muted: #6f645e;
      --muted-2: #8f857e;
      --line: rgba(77, 61, 55, .12);
      --line-strong: rgba(77, 61, 55, .18);
      --brand: #9c4f3d;
      --brand-2: #c66b52;
      --accent: #d6a15f;
      --accent-2: #7a5b4a;
      --good: #4a7d67;
      --shadow: 0 18px 40px rgba(42, 32, 28, .08);
      --shadow-soft: 0 10px 24px rgba(42, 32, 28, .06);
      --radius: 22px;
      --radius-lg: 30px;
      --radius-sm: 14px;
      --container: 1180px;
      --gap: 22px;
      --gap-lg: 34px;
      --transition: .24s ease;
    }
    *{
      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 SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 520px at 10% -10%, rgba(214,161,95,.16), transparent 60%),
        radial-gradient(900px 460px at 90% 0%, rgba(156,79,61,.10), transparent 55%),
        linear-gradient(180deg, #fbf7f2 0%, #f5efe9 28%, #f3ece5 100%);
      line-height:1.72;
      min-height:100vh;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    h1,h2,h3,h4,h5,h6,p,ul,ol,dl,figure{
      margin:0;
    }
    ul,ol{
      padding:0;
      list-style:none;
    }
    img{
      max-width:100%;
      display:block;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition), opacity var(--transition);
    }
    a:hover{
      color:var(--brand);
    }
    button,
    input,
    textarea,
    select{
      font:inherit;
    }
    button{
      border:0;
      background:none;
      padding:0;
      cursor:pointer;
    }
    input,
    textarea,
    select{
      outline:none;
    }
    :focus-visible{
      outline:3px solid rgba(156,79,61,.24);
      outline-offset:2px;
    }
    .container{
      width:min(100% - 32px, var(--container));
      margin-inline:auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:blur(16px);
      background:rgba(248,243,238,.76);
      border-bottom:1px solid rgba(77,61,55,.08);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background:linear-gradient(145deg, rgba(156,79,61,.98), rgba(198,107,82,.88));
      box-shadow:0 12px 24px rgba(156,79,61,.26);
      position:relative;
      flex:none;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:auto;
      background:rgba(255,255,255,.92);
      border-radius:999px;
    }
    .brand-mark::before{
      width:14px;
      height:14px;
      left:11px;
      top:10px;
    }
    .brand-mark::after{
      width:8px;
      height:8px;
      right:11px;
      bottom:10px;
      opacity:.9;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand-text strong{
      font-size:1rem;
      letter-spacing:.02em;
      line-height:1.2;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      font-size:.78rem;
      color:var(--muted);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .nav-list{
      display:flex;
      align-items:center;
      gap:8px;
      list-style:none;
      margin:0;
      padding:0;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-weight:600;
      font-size:.95rem;
      border:1px solid transparent;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.8);
      border-color:rgba(77,61,55,.10);
      box-shadow:var(--shadow-soft);
      outline:none;
    }
    .nav-link.is-active{
      background:rgba(156,79,61,.09);
      border-color:rgba(156,79,61,.14);
      color:var(--brand);
    }
    .nav-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(77,61,55,.12);
      background:rgba(255,255,255,.82);
      box-shadow:var(--shadow-soft);
      align-items:center;
      justify-content:center;
      gap:5px;
      flex-direction:column;
    }
    .nav-toggle span{
      width:18px;
      height:2px;
      border-radius:999px;
      background:var(--text);
      display:block;
    }

    .page{
      position:relative;
      padding:26px 0 40px;
    }
    .article-banner{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(24,18,16,.80), rgba(42,32,28,.64)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      box-shadow:0 26px 60px rgba(31,22,18,.16);
      border:1px solid rgba(255,255,255,.16);
      margin-bottom:24px;
    }
    .article-banner::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(700px 300px at 16% 18%, rgba(214,161,95,.16), transparent 62%),
        linear-gradient(180deg, rgba(0,0,0,.06), rgba(0,0,0,.18));
      pointer-events:none;
    }
    .banner-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:28px;
      align-items:center;
      padding:38px;
      min-height:420px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 14px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.08);
      color:rgba(255,255,255,.92);
      font-size:.88rem;
      letter-spacing:.02em;
      margin-bottom:18px;
      backdrop-filter:blur(8px);
    }
    .eyebrow i{
      width:8px;
      height:8px;
      display:inline-block;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(214,161,95,.16);
    }
    .banner-copy{
      color:#fff7f2;
    }
    .banner-copy h1{
      font-size:clamp(2rem, 4vw, 3.6rem);
      line-height:1.12;
      letter-spacing:.01em;
      margin-bottom:16px;
      text-wrap:balance;
    }
    .banner-copy p{
      color:rgba(255,247,242,.84);
      font-size:1.02rem;
      max-width:62ch;
    }
    .banner-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .action-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      font-weight:700;
      letter-spacing:.01em;
      border:1px solid transparent;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
    }
    .action-btn:hover{
      transform:translateY(-1px);
      box-shadow:0 14px 28px rgba(40,28,22,.16);
    }
    .action-btn.primary{
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      color:#fff;
      box-shadow:0 16px 30px rgba(156,79,61,.22);
    }
    .action-btn.primary:hover{
      color:#fff;
    }
    .action-btn.secondary{
      background:rgba(255,255,255,.10);
      color:#fff;
      border-color:rgba(255,255,255,.18);
      backdrop-filter:blur(8px);
    }
    .action-btn.secondary:hover{
      color:#fff;
      background:rgba(255,255,255,.16);
    }
    .banner-card{
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.14);
      border-radius:24px;
      padding:18px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
      backdrop-filter:blur(10px);
      color:#fff;
    }
    .banner-card .cover{
      border-radius:18px;
      overflow:hidden;
      margin-bottom:14px;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 16px 36px rgba(12,10,9,.22);
    }
    .banner-card .cover img{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
    }
    .banner-card .mini-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:10px;
    }
    .mini-chip{
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      border-radius:16px;
      padding:10px 12px;
      min-height:72px;
    }
    .mini-chip strong{
      display:block;
      font-size:.82rem;
      margin-bottom:4px;
    }
    .mini-chip span{
      display:block;
      color:rgba(255,255,255,.76);
      font-size:.78rem;
      line-height:1.5;
    }

    .meta-strip{
      margin-top:18px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.7);
      color:var(--muted);
      font-size:.92rem;
      box-shadow:var(--shadow-soft);
    }
    .meta-pill b{
      color:var(--text);
      font-weight:700;
    }

    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,1.48fr) minmax(300px,.72fr);
      gap:24px;
      margin-top:24px;
      align-items:start;
    }
    .panel{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(10px);
    }
    .article-card{
      padding:28px;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      color:var(--muted);
      font-size:.92rem;
      margin-bottom:14px;
    }
    .breadcrumb a{
      color:var(--muted);
    }
    .breadcrumb a:hover{
      color:var(--brand);
    }
    .breadcrumb span.sep{
      color:var(--muted-2);
    }
    .article-head{
      padding-bottom:18px;
      border-bottom:1px solid var(--line);
      margin-bottom:20px;
    }
    .article-head h2{
      font-size:1.2rem;
      margin-bottom:10px;
      line-height:1.35;
    }
    .article-info{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(156,79,61,.08);
      border:1px solid rgba(156,79,61,.12);
      color:var(--brand);
      font-size:.88rem;
      font-weight:600;
    }
    .tag.soft{
      background:rgba(214,161,95,.12);
      border-color:rgba(214,161,95,.18);
      color:#8b5b1d;
    }
    .tag.neutral{
      background:rgba(77,61,55,.06);
      border-color:rgba(77,61,55,.10);
      color:var(--muted);
    }
    .article-body{
      font-size:1.02rem;
      line-height:1.88;
      color:var(--text);
      word-break:break-word;
    }
    .article-body :is(p,ul,ol,blockquote,pre,table,figure,hr,h2,h3,h4){
      margin-bottom:1rem;
    }
    .article-body h2{
      font-size:1.35rem;
      line-height:1.35;
      margin-top:1.6rem;
      padding-top:.2rem;
    }
    .article-body h3{
      font-size:1.12rem;
      line-height:1.45;
      margin-top:1.4rem;
    }
    .article-body p{
      color:#352d28;
    }
    .article-body strong{
      color:#1e1714;
      font-weight:800;
    }
    .article-body a{
      color:var(--brand);
      text-decoration:underline;
      text-decoration-thickness:1px;
      text-underline-offset:2px;
    }
    .article-body a:hover{
      color:var(--brand-2);
    }
    .article-body blockquote{
      margin:1.2rem 0;
      padding:16px 18px;
      border-left:4px solid var(--brand);
      background:rgba(156,79,61,.06);
      border-radius:0 16px 16px 0;
      color:#463933;
    }
    .article-body ul,
    .article-body ol{
      padding-left:1.35rem;
    }
    .article-body ul{
      list-style:disc;
    }
    .article-body ol{
      list-style:decimal;
    }
    .article-body li{
      margin-bottom:.45rem;
    }
    .article-body img{
      max-width:100%;
      height:auto;
      border-radius:18px;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      margin:1rem 0;
    }
    .article-body hr{
      border:0;
      border-top:1px solid var(--line);
      margin:1.4rem 0;
    }
    .article-body table{
      width:100%;
      border-collapse:collapse;
      overflow:hidden;
      border-radius:16px;
      border:1px solid var(--line);
      background:#fff;
      box-shadow:var(--shadow-soft);
    }
    .article-body th,
    .article-body td{
      padding:12px 14px;
      border-bottom:1px solid rgba(77,61,55,.08);
      text-align:left;
      vertical-align:top;
    }
    .article-body th{
      background:rgba(245,239,233,.92);
      color:#312824;
      font-weight:700;
    }
    .article-body pre{
      overflow:auto;
      padding:16px 18px;
      border-radius:18px;
      background:#1f1916;
      color:#f7efe8;
      box-shadow:var(--shadow-soft);
    }
    .article-body code{
      font-family:SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
      font-size:.95em;
    }

    .reading-note{
      margin-top:18px;
      padding:16px 18px;
      border-radius:18px;
      background:linear-gradient(135deg, rgba(214,161,95,.11), rgba(156,79,61,.07));
      border:1px solid rgba(156,79,61,.12);
      color:#5a473e;
      display:flex;
      gap:12px;
      align-items:flex-start;
    }
    .reading-note .dot{
      width:10px;
      height:10px;
      border-radius:999px;
      background:var(--good);
      box-shadow:0 0 0 5px rgba(74,125,103,.12);
      margin-top:.45rem;
      flex:none;
    }

    .article-side{
      display:grid;
      gap:20px;
      position:sticky;
      top:96px;
    }
    .side-card{
      padding:20px;
    }
    .side-title{
      font-size:1.05rem;
      line-height:1.35;
      margin-bottom:14px;
      font-weight:800;
    }
    .side-cover{
      border-radius:18px;
      overflow:hidden;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      margin-bottom:14px;
      background:#fff;
    }
    .side-cover img{
      width:100%;
      aspect-ratio:4/3;
      object-fit:cover;
    }
    .side-copy{
      color:var(--muted);
      font-size:.95rem;
      margin-bottom:14px;
    }
    .link-list{
      display:grid;
      gap:10px;
    }
    .link-item{
      display:flex;
      align-items:flex-start;
      gap:10px;
      padding:12px 13px;
      border:1px solid var(--line);
      border-radius:16px;
      background:rgba(255,255,255,.72);
      box-shadow:0 8px 18px rgba(42,32,28,.04);
    }
    .link-item:hover{
      transform:translateY(-1px);
      border-color:rgba(156,79,61,.18);
      box-shadow:0 14px 24px rgba(42,32,28,.08);
    }
    .link-item .thumb{
      width:56px;
      height:56px;
      border-radius:14px;
      overflow:hidden;
      flex:none;
      border:1px solid rgba(77,61,55,.10);
      background:#fff;
    }
    .link-item .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .link-item .text{
      min-width:0;
    }
    .link-item .text strong{
      display:block;
      font-size:.94rem;
      line-height:1.42;
      margin-bottom:5px;
    }
    .link-item .text span{
      display:block;
      color:var(--muted);
      font-size:.83rem;
      line-height:1.5;
    }
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag-cloud a{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--muted);
      font-size:.88rem;
    }
    .tag-cloud a:hover{
      color:var(--brand);
      border-color:rgba(156,79,61,.18);
      background:rgba(156,79,61,.06);
    }

    .section{
      margin-top:24px;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:14px;
    }
    .section-head h2{
      font-size:1.4rem;
      line-height:1.3;
    }
    .section-head p{
      color:var(--muted);
      font-size:.95rem;
      max-width:58ch;
    }

    .card-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:18px;
    }
    .topic-card{
      overflow:hidden;
      border-radius:24px;
      border:1px solid var(--line);
      background:var(--surface-strong);
      box-shadow:var(--shadow-soft);
      display:flex;
      flex-direction:column;
      min-height:100%;
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .topic-card:hover{
      transform:translateY(-2px);
      border-color:rgba(156,79,61,.16);
      box-shadow:var(--shadow);
    }
    .topic-card .media{
      position:relative;
      overflow:hidden;
      aspect-ratio:16/10;
      background:#efe7df;
    }
    .topic-card .media img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s ease;
    }
    .topic-card:hover .media img{
      transform:scale(1.03);
    }
    .topic-card .body{
      padding:16px 16px 18px;
    }
    .topic-card .body .meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:10px;
    }
    .topic-card .body h3{
      font-size:1.03rem;
      line-height:1.42;
      margin-bottom:10px;
    }
    .topic-card .body p{
      font-size:.94rem;
      color:var(--muted);
      line-height:1.7;
      margin-bottom:14px;
      min-height:3.4em;
    }
    .read-more{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-weight:700;
      color:var(--brand);
    }
    .read-more::after{
      content:"→";
      transition:transform var(--transition);
    }
    .topic-card:hover .read-more::after{
      transform:translateX(2px);
    }

    .cta-panel{
      margin-top:24px;
      padding:24px;
      border-radius:var(--radius);
      border:1px solid rgba(156,79,61,.14);
      background:
        linear-gradient(135deg, rgba(156,79,61,.08), rgba(214,161,95,.10)),
        rgba(255,255,255,.72);
      box-shadow:var(--shadow-soft);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .cta-panel h2{
      font-size:1.34rem;
      margin-bottom:8px;
    }
    .cta-panel p{
      color:var(--muted);
      max-width:58ch;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }

    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(255,255,255,.74);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:16px 18px;
      font-weight:700;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .faq-item summary::-webkit-details-marker{
      display:none;
    }
    .faq-item summary::after{
      content:"+";
      width:30px;
      height:30px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:999px;
      background:rgba(156,79,61,.08);
      color:var(--brand);
      flex:none;
      font-size:1.1rem;
      font-weight:700;
      transition:transform var(--transition), background var(--transition);
    }
    .faq-item[open] summary::after{
      content:"–";
      background:rgba(156,79,61,.12);
    }
    .faq-item .answer{
      padding:0 18px 18px;
      color:var(--muted);
    }

    .article-empty{
      padding:30px;
      text-align:center;
    }
    .article-empty h2{
      font-size:1.3rem;
      margin-bottom:10px;
    }
    .article-empty p{
      color:var(--muted);
      margin-bottom:20px;
    }

    .site-footer{
      margin-top:32px;
      padding:0 0 28px;
    }
    .footer-box{
      background:rgba(34,29,27,.94);
      color:#f5ede6;
      border-radius:28px;
      padding:26px;
      box-shadow:0 24px 50px rgba(32,24,20,.18);
      border:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr .82fr .94fr;
      gap:24px;
      align-items:start;
    }
    .footer-brand strong{
      display:block;
      font-size:1.08rem;
      margin-bottom:10px;
      letter-spacing:.02em;
    }
    .footer-brand p{
      color:rgba(245,237,230,.78);
      line-height:1.8;
      font-size:.94rem;
      max-width:44ch;
    }
    .footer-title{
      font-size:.96rem;
      font-weight:700;
      margin-bottom:12px;
      color:#fff;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(245,237,230,.80);
      padding:2px 0;
    }
    .footer-links a:hover{
      color:#fff;
    }
    .footer-note{
      margin-top:22px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      flex-wrap:wrap;
      gap:10px 18px;
      justify-content:space-between;
      color:rgba(245,237,230,.68);
      font-size:.9rem;
    }

    .back-top{
      position:fixed;
      right:18px;
      bottom:18px;
      width:46px;
      height:46px;
      border-radius:16px;
      background:rgba(34,29,27,.9);
      color:#fff;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      box-shadow:0 16px 26px rgba(31,22,18,.24);
      border:1px solid rgba(255,255,255,.08);
      z-index:900;
    }
    .back-top:hover{
      color:#fff;
      transform:translateY(-1px);
    }

    @media (max-width: 1180px){
      .banner-inner{
        padding:32px;
      }
      .article-layout{
        grid-template-columns:minmax(0,1fr) 320px;
      }
      .card-grid{
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
    }
    @media (max-width: 992px){
      .header-inner{
        min-height:72px;
      }
      .nav-toggle{
        display:inline-flex;
      }
      .nav{
        position:absolute;
        left:16px;
        right:16px;
        top:calc(100% + 10px);
        padding:12px;
        background:rgba(255,250,246,.98);
        border:1px solid rgba(77,61,55,.10);
        border-radius:20px;
        box-shadow:var(--shadow);
        display:none;
      }
      .nav.is-open{
        display:block;
      }
      .nav-list{
        flex-direction:column;
        align-items:stretch;
      }
      .nav-link{
        justify-content:flex-start;
      }
      .banner-inner{
        grid-template-columns:1fr;
        min-height:auto;
      }
      .banner-card{
        max-width:560px;
      }
      .article-layout{
        grid-template-columns:1fr;
      }
      .article-side{
        position:static;
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
      .footer-brand{
        grid-column:1 / -1;
      }
    }
    @media (max-width: 768px){
      .page{
        padding-top:18px;
      }
      .article-banner{
        border-radius:24px;
      }
      .banner-inner{
        padding:24px;
      }
      .article-card,
      .side-card,
      .cta-panel{
        padding:18px;
      }
      .card-grid{
        grid-template-columns:1fr;
      }
      .cta-panel{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-actions{
        justify-content:flex-start;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
      .footer-note{
        flex-direction:column;
      }
    }
    @media (max-width: 520px){
      .container{
        width:min(100% - 24px, var(--container));
      }
      .brand-text strong{
        font-size:.96rem;
      }
      .brand-text span{
        font-size:.72rem;
      }
      .banner-copy h1{
        font-size:1.9rem;
      }
      .banner-actions{
        flex-direction:column;
      }
      .action-btn{
        width:100%;
      }
      .meta-strip{
        gap:8px;
      }
      .meta-pill{
        width:100%;
        justify-content:space-between;
      }
      .article-head h2{
        font-size:1.08rem;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
    }

/* 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}