/* roulang page: index */
:root{
      --bg: #f6f1e8;
      --bg-soft: #fbf8f2;
      --surface: rgba(255,255,255,.92);
      --surface-strong: #ffffff;
      --text: #252525;
      --muted: #6f6a63;
      --faint: #9b948a;
      --line: #e5dccd;
      --line-strong: #d7c9b5;
      --accent: #c98a34;
      --accent-2: #d86f3d;
      --accent-soft: rgba(201,138,52,.12);
      --cool: #2f8f83;
      --cool-soft: rgba(47,143,131,.12);
      --shadow: 0 14px 30px rgba(42,34,24,.08);
      --shadow-hover: 0 18px 42px rgba(42,34,24,.14);
      --radius: 22px;
      --radius-sm: 16px;
      --radius-lg: 30px;
      --container: 1200px;
      --space: 24px;
      --space-lg: 36px;
      --space-xl: 64px;
      --ease: 180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(201,138,52,.08), transparent 30%),
        radial-gradient(circle at top right, rgba(47,143,131,.08), transparent 24%),
        linear-gradient(180deg, #faf7f0 0%, var(--bg) 100%);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      line-height:1.72;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(201,138,52,.22)}
    .skip-link{
      position:absolute;
      left:-9999px;
      top:auto;
      width:1px;
      height:1px;
      overflow:hidden;
    }
    .skip-link:focus{
      left:16px;
      top:16px;
      width:auto;
      height:auto;
      z-index:1000;
      padding:12px 16px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:999px;
      box-shadow:var(--shadow);
    }
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter: blur(14px);
      background: rgba(250,247,240,.82);
      border-bottom:1px solid rgba(229,220,205,.7);
    }
    .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      min-height:76px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      color:var(--text);
      min-width:max-content;
    }
    .brand-mark{
      width:40px;
      height:40px;
      border-radius:14px;
      background: linear-gradient(145deg, rgba(201,138,52,.18), rgba(47,143,131,.14));
      border:1px solid rgba(201,138,52,.22);
      display:grid;
      place-items:center;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.65);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      border-radius:999px;
      background:rgba(201,138,52,.9);
    }
    .brand-mark::before{
      width:16px;
      height:16px;
      border:2px solid rgba(201,138,52,.95);
      background:transparent;
      top:10px;
      left:10px;
      box-shadow:
        0 -8px 0 -6px rgba(201,138,52,.85),
        0 8px 0 -6px rgba(201,138,52,.85),
        -8px 0 0 -6px rgba(201,138,52,.85),
        8px 0 0 -6px rgba(201,138,52,.85);
    }
    .brand-mark::after{
      width:10px;
      height:2px;
      background:rgba(47,143,131,.9);
      transform:rotate(28deg);
      top:19px;
      left:17px;
      box-shadow:6px 4px 0 0 rgba(47,143,131,.9);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-text strong{
      font-size:1rem;
      letter-spacing:.04em;
    }
    .brand-text span{
      margin-top:4px;
      font-size:.78rem;
      color:var(--muted);
      font-weight:500;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav a{
      position:relative;
      padding:10px 14px;
      color:var(--muted);
      border-radius:999px;
      transition: transform var(--ease), background var(--ease), color var(--ease), box-shadow var(--ease);
      outline:none;
    }
    .nav a:hover,
    .nav a:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.76);
      box-shadow:0 8px 24px rgba(42,34,24,.06);
      transform:translateY(-1px);
    }
    .nav .nav-cta{
      color:#fff;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow:0 14px 28px rgba(201,138,52,.22);
      padding-inline:16px;
    }
    .nav .nav-cta:hover,
    .nav .nav-cta:focus-visible{
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 16px 32px rgba(201,138,52,.28);
    }

    .hero{
      padding:28px 0 18px;
    }
    .hero-shell{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(215,201,181,.85);
      border-radius:calc(var(--radius-lg) + 6px);
      background:
        linear-gradient(115deg, rgba(255,255,255,.9) 0%, rgba(255,255,255,.74) 52%, rgba(255,255,255,.55) 100%),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .hero-shell::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 22%, rgba(201,138,52,.12), transparent 24%),
        radial-gradient(circle at 92% 12%, rgba(47,143,131,.10), transparent 20%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns: 1.08fr .92fr;
      gap:28px;
      padding:34px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--cool);
      font-size:.92rem;
      font-weight:700;
      letter-spacing:.06em;
      text-transform:none;
      margin-bottom:14px;
    }
    .eyebrow::before{
      content:"";
      width:38px;
      height:1px;
      background:linear-gradient(90deg, var(--cool), transparent);
    }
    h1{
      margin:0;
      font-size:clamp(2.1rem, 4vw, 4.15rem);
      line-height:1.08;
      letter-spacing:-.03em;
      color:#222019;
      max-width:11.5ch;
    }
    .hero-desc{
      margin:18px 0 0;
      max-width:58ch;
      color:var(--muted);
      font-size:1.05rem;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:26px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      cursor:pointer;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      font-weight:700;
      letter-spacing:.01em;
      outline:none;
      user-select:none;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible{
      box-shadow:0 0 0 4px rgba(201,138,52,.2);
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow:0 16px 28px rgba(201,138,52,.24);
    }
    .btn-primary:hover{box-shadow:0 18px 34px rgba(201,138,52,.3)}
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.76);
      border-color:var(--line);
    }
    .btn-secondary:hover{
      border-color:var(--line-strong);
      box-shadow:var(--shadow);
    }

    .hero-points{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.76);
      color:var(--muted);
      border:1px solid rgba(229,220,205,.95);
      font-size:.92rem;
    }
    .chip-dot{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(201,138,52,.14);
    }
    .chip-dot.cool{
      background:var(--cool);
      box-shadow:0 0 0 4px rgba(47,143,131,.14);
    }

    .hero-visual{
      position:relative;
      min-height:560px;
      display:grid;
      grid-template-columns: 1fr;
      align-items:stretch;
    }
    .visual-main{
      position:relative;
      border-radius:30px;
      overflow:hidden;
      min-height:420px;
      background:#eae1d5;
      border:1px solid rgba(215,201,181,.75);
      box-shadow:var(--shadow);
    }
    .visual-main img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(1.02) contrast(1.02);
    }
    .visual-overlay{
      position:absolute;
      inset:auto 18px 18px 18px;
      display:grid;
      gap:12px;
    }
    .glass-card{
      background:rgba(255,255,255,.84);
      backdrop-filter: blur(8px);
      border:1px solid rgba(255,255,255,.72);
      border-radius:22px;
      box-shadow:0 12px 28px rgba(42,34,24,.10);
      padding:16px;
    }
    .time-board{
      position:absolute;
      top:18px;
      left:18px;
      right:18px;
      display:grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap:10px;
    }
    .mini-stat{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(229,220,205,.95);
      border-radius:18px;
      padding:12px 14px;
      box-shadow:0 10px 20px rgba(42,34,24,.06);
    }
    .mini-stat strong{
      display:block;
      font-size:1.08rem;
      margin-bottom:2px;
      color:#222019;
    }
    .mini-stat span{
      color:var(--muted);
      font-size:.88rem;
    }
    .visual-ribbon{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .visual-ribbon .left{
      display:flex;
      flex-direction:column;
      gap:4px;
    }
    .visual-ribbon .left strong{
      font-size:1rem;
      color:#222019;
    }
    .visual-ribbon .left span{
      color:var(--muted);
      font-size:.9rem;
    }
    .tickline{
      width:100%;
      height:10px;
      border-radius:999px;
      background:
        linear-gradient(90deg, rgba(201,138,52,.18) 0 24%, rgba(47,143,131,.2) 24% 53%, rgba(201,138,52,.16) 53% 100%);
      position:relative;
      overflow:hidden;
      margin-top:10px;
    }
    .tickline::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.45), transparent);
      transform:translateX(-55%);
      animation: shimmer 6s linear infinite;
    }
    @keyframes shimmer{
      to{transform:translateX(55%)}
    }

    .trust-bar{
      margin-top:18px;
      background:rgba(255,255,255,.74);
      border:1px solid rgba(229,220,205,.9);
      border-radius:var(--radius);
      box-shadow:0 8px 24px rgba(42,34,24,.06);
      padding:16px 18px;
      display:grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap:12px;
    }
    .trust-item{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:10px 12px;
      border-radius:18px;
      background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(250,247,240,.9));
      border:1px solid rgba(229,220,205,.8);
    }
    .trust-badge{
      width:12px;
      height:12px;
      border-radius:50%;
      margin-top:5px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(201,138,52,.12);
      flex:0 0 auto;
    }
    .trust-badge.cool{
      background:var(--cool);
      box-shadow:0 0 0 5px rgba(47,143,131,.12);
    }
    .trust-item strong{
      display:block;
      font-size:.98rem;
      margin-bottom:2px;
    }
    .trust-item span{
      display:block;
      color:var(--muted);
      font-size:.9rem;
    }

    .section{
      padding:var(--space-xl) 0;
    }
    .section.soft{
      background:linear-gradient(180deg, rgba(255,255,255,.45), rgba(255,255,255,.12));
      border-top:1px solid rgba(229,220,205,.5);
      border-bottom:1px solid rgba(229,220,205,.5);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:24px;
    }
    .section-title{
      margin:0;
      font-size:clamp(1.5rem, 2.2vw, 2.2rem);
      line-height:1.15;
      letter-spacing:-.02em;
    }
    .section-note{
      margin:0;
      color:var(--muted);
      max-width:58ch;
    }

    .feature-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
      align-items:stretch;
    }
    .feature-panel{
      border-radius:var(--radius-lg);
      background:var(--surface);
      border:1px solid rgba(229,220,205,.9);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .feature-panel.large{
      padding:24px;
      display:grid;
      grid-template-columns: 1.02fr .98fr;
      gap:20px;
      align-items:center;
    }
    .feature-media{
      border-radius:24px;
      overflow:hidden;
      min-height:320px;
      position:relative;
      border:1px solid rgba(229,220,205,.9);
      background:#f0e7db;
    }
    .feature-media img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .feature-copy .eyebrow{
      margin-bottom:12px;
    }
    .feature-copy h3{
      margin:0;
      font-size:1.55rem;
      line-height:1.18;
    }
    .feature-copy p{
      margin:14px 0 0;
      color:var(--muted);
    }
    .feature-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:8px 12px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#8a5a10;
      border:1px solid rgba(201,138,52,.14);
      font-size:.9rem;
      font-weight:600;
    }
    .feature-stack{
      display:grid;
      gap:18px;
    }
    .stack-card{
      padding:22px;
      border-radius:var(--radius-lg);
      background:var(--surface);
      border:1px solid rgba(229,220,205,.9);
      box-shadow:var(--shadow);
      display:flex;
      flex-direction:column;
      gap:16px;
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .stack-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(215,201,181,.98);
    }
    .stack-card .card-kicker{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      color:var(--muted);
      font-size:.92rem;
    }
    .stack-card h3{
      margin:0;
      font-size:1.2rem;
      line-height:1.25;
    }
    .stack-card p{
      margin:0;
      color:var(--muted);
    }

    .themes-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:18px;
      align-items:stretch;
    }
    .theme-card{
      border-radius:var(--radius-lg);
      border:1px solid rgba(229,220,205,.9);
      background:var(--surface-strong);
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .theme-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(215,201,181,.98);
    }
    .theme-card.hero-like{
      display:grid;
      grid-template-columns: 1fr .95fr;
      gap:0;
      min-height:100%;
    }
    .theme-card.hero-like .theme-image{
      min-height:100%;
    }
    .theme-image{
      position:relative;
      overflow:hidden;
      background:#efe5d8;
    }
    .theme-image img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .theme-body{
      padding:22px;
    }
    .theme-body h3{
      margin:0;
      font-size:1.28rem;
      line-height:1.22;
    }
    .theme-body p{
      margin:12px 0 0;
      color:var(--muted);
    }
    .theme-meta{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 11px;
      border-radius:999px;
      background:rgba(47,143,131,.08);
      color:#256f65;
      border:1px solid rgba(47,143,131,.12);
      font-size:.88rem;
      font-weight:600;
    }
    .meta-pill.gold{
      background:rgba(201,138,52,.1);
      color:#8a5a10;
      border-color:rgba(201,138,52,.15);
    }
    .theme-list{
      display:grid;
      gap:18px;
    }
    .theme-list .theme-card{
      display:grid;
      grid-template-columns: 150px 1fr;
      min-height:168px;
    }
    .theme-list .theme-image{
      min-height:100%;
    }

    .updates-wrap{
      display:grid;
      grid-template-columns: 1.35fr .65fr;
      gap:18px;
      align-items:start;
    }
    .updates-panel{
      background:var(--surface);
      border:1px solid rgba(229,220,205,.9);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .updates-head{
      padding:24px 24px 0;
    }
    .updates-head h3{
      margin:0;
      font-size:1.35rem;
      line-height:1.18;
    }
    .updates-head p{
      margin:10px 0 0;
      color:var(--muted);
    }
    .updates-list{
      padding:18px 18px 22px;
      display:grid;
      gap:14px;
    }
    .update-card{
      display:grid;
      grid-template-columns: 128px 1fr;
      gap:16px;
      align-items:stretch;
      padding:14px;
      border-radius:22px;
      border:1px solid rgba(229,220,205,.95);
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(250,247,240,.96));
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease), background var(--ease);
    }
    .update-card:hover,
    .update-card:focus-visible{
      transform:translateY(-2px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(215,201,181,.95);
      background:#fff;
      outline:none;
    }
    .update-thumb{
      border-radius:18px;
      overflow:hidden;
      min-height:100%;
      background:#efe5d8;
      border:1px solid rgba(229,220,205,.82);
    }
    .update-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .update-body{
      min-width:0;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:12px;
      padding:4px 2px 2px 0;
    }
    .update-top{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
    }
    .label{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#8a5a10;
      font-size:.82rem;
      font-weight:700;
      border:1px solid rgba(201,138,52,.12);
    }
    .label.cool{
      background:var(--cool-soft);
      color:#1e6f65;
      border-color:rgba(47,143,131,.12);
    }
    .update-body h4{
      margin:0;
      font-size:1.08rem;
      line-height:1.4;
      min-width:0;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .update-body p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .update-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:var(--faint);
      font-size:.86rem;
    }
    .update-side{
      position:sticky;
      top:94px;
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:22px;
      border-radius:var(--radius-lg);
      background:var(--surface);
      border:1px solid rgba(229,220,205,.9);
      box-shadow:var(--shadow);
    }
    .side-card h3{
      margin:0;
      font-size:1.18rem;
    }
    .side-card p{
      margin:10px 0 0;
      color:var(--muted);
    }
    .side-list{
      margin:16px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .side-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--text);
      padding:10px 0;
      border-top:1px solid rgba(229,220,205,.9);
    }
    .side-list li:first-child{border-top:none;padding-top:0}
    .dot{
      width:8px;
      height:8px;
      margin-top:9px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(201,138,52,.12);
      flex:0 0 auto;
    }
    .quick-cover{
      overflow:hidden;
      border-radius:24px;
      border:1px solid rgba(229,220,205,.9);
      background:#f1e8db;
      box-shadow:0 12px 24px rgba(42,34,24,.08);
    }
    .quick-cover img{
      width:100%;
      height:208px;
      object-fit:cover;
    }

    .faq{
      display:grid;
      gap:12px;
    }
    details.faq-item{
      background:var(--surface);
      border:1px solid rgba(229,220,205,.92);
      border-radius:20px;
      box-shadow:0 10px 20px rgba(42,34,24,.05);
      overflow:hidden;
      transition:box-shadow var(--ease), transform var(--ease), border-color var(--ease);
    }
    details.faq-item[open]{
      border-color:rgba(215,201,181,.98);
      box-shadow:var(--shadow);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      font-weight:700;
      color:var(--text);
      outline:none;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    details.faq-item summary::after{
      content:"+";
      width:28px;
      height:28px;
      flex:0 0 auto;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(201,138,52,.1);
      color:#8a5a10;
      transition:transform var(--ease), background var(--ease);
    }
    details.faq-item[open] summary::after{
      content:"–";
      background:rgba(47,143,131,.1);
      color:#1e6f65;
    }
    .faq-content{
      padding:0 20px 18px;
      color:var(--muted);
    }

    .contact-panel{
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(31,29,27,.96), rgba(61,52,43,.96)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#fff;
      border-radius:calc(var(--radius-lg) + 4px);
      box-shadow:0 24px 50px rgba(26,22,17,.22);
      border:1px solid rgba(255,255,255,.08);
    }
    .contact-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 20% 18%, rgba(201,138,52,.18), transparent 28%);
      pointer-events:none;
    }
    .contact-inner{
      position:relative;
      z-index:1;
      padding:28px;
      display:grid;
      grid-template-columns: 1.06fr .94fr;
      gap:24px;
      align-items:center;
    }
    .contact-copy h2{
      margin:0;
      font-size:clamp(1.6rem, 2.4vw, 2.4rem);
      line-height:1.15;
    }
    .contact-copy p{
      margin:14px 0 0;
      color:rgba(255,255,255,.78);
      max-width:56ch;
    }
    .contact-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:24px;
    }
    .btn-dark{
      background:#fff;
      color:#231e18;
      border-color:transparent;
    }
    .btn-dark:hover{box-shadow:0 16px 30px rgba(0,0,0,.18)}
    .contact-form{
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(8px);
      border-radius:28px;
      padding:20px;
    }
    .field-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin-bottom:12px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .field label{
      font-size:.9rem;
      color:rgba(255,255,255,.78);
      font-weight:600;
    }
    .field input,
    .field textarea{
      width:100%;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.94);
      color:var(--text);
      padding:12px 14px;
      outline:none;
      transition:border-color var(--ease), box-shadow var(--ease), transform var(--ease), background var(--ease);
    }
    .field textarea{min-height:112px;resize:vertical}
    .field input:focus,
    .field textarea:focus{
      border-color:rgba(201,138,52,.7);
      box-shadow:0 0 0 4px rgba(201,138,52,.15);
    }
    .form-note{
      margin-top:10px;
      color:rgba(255,255,255,.7);
      font-size:.88rem;
    }

    .site-footer{
      padding:24px 0 32px;
    }
    .footer-shell{
      background:rgba(255,255,255,.72);
      border:1px solid rgba(229,220,205,.92);
      border-radius:30px;
      box-shadow:var(--shadow);
      padding:26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap:24px;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      max-width:40ch;
    }
    .footer-col h4{
      margin:0 0 12px;
      font-size:1rem;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      transition:color var(--ease), transform var(--ease);
      width:max-content;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:var(--text);
      transform:translateX(2px);
      outline:none;
    }
    .footer-note{
      margin-top:18px;
      padding-top:18px;
      border-top:1px solid rgba(229,220,205,.9);
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:space-between;
      color:var(--faint);
      font-size:.92rem;
    }

    .empty-state{
      display:grid;
      place-items:center;
      min-height:180px;
      border-radius:22px;
      border:1px dashed rgba(215,201,181,.95);
      background:rgba(255,255,255,.66);
      color:var(--muted);
      font-weight:600;
    }

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

    @media (max-width: 1200px){
      .hero-grid,
      .feature-panel.large,
      .themes-grid,
      .updates-wrap,
      .contact-inner,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .hero-visual{min-height:auto}
      .visual-main{min-height:360px}
      .trust-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
      .theme-card.hero-like,
      .theme-list .theme-card,
      .update-card{
        grid-template-columns:1fr;
      }
      .update-thumb{min-height:180px}
      .update-side{position:static}
    }
    @media (max-width: 768px){
      .header-inner{
        flex-direction:column;
        align-items:flex-start;
        padding:14px 0;
      }
      .nav{
        justify-content:flex-start;
      }
      .hero{padding-top:18px}
      .hero-shell,
      .contact-panel,
      .footer-shell{
        border-radius:24px;
      }
      .hero-grid,
      .contact-inner{
        padding:20px;
      }
      h1{max-width:none}
      .section{padding:48px 0}
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .trust-bar{
        grid-template-columns:1fr;
      }
      .feature-panel.large,
      .stack-card,
      .theme-body,
      .updates-head,
      .updates-list,
      .side-card{
        padding:18px;
      }
      .feature-media{min-height:260px}
      .field-row{
        grid-template-columns:1fr;
      }
    }
    @media (max-width: 520px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .nav{gap:6px}
      .nav a{
        padding:9px 11px;
        font-size:.95rem;
      }
      .hero-grid,
      .contact-inner{
        gap:18px;
      }
      .hero-desc,
      .section-note,
      .theme-body p,
      .stack-card p,
      .side-card p{
        font-size:.96rem;
      }
      .hero-actions,
      .contact-actions{
        flex-direction:column;
      }
      .btn{
        width:100%;
      }
      .visual-main{
        min-height:300px;
      }
      .time-board{
        grid-template-columns:1fr;
      }
      .mini-stat strong{
        font-size:.98rem;
      }
      .footer-note{
        flex-direction:column;
      }
    }

/* roulang page: article */
:root{
      --bg: #f6f1e8;
      --bg-soft: #fbf8f2;
      --surface: rgba(255,255,255,.92);
      --surface-strong: #ffffff;
      --text: #252525;
      --muted: #6f6a63;
      --faint: #9b948a;
      --line: #e5dccd;
      --line-strong: #d7c9b5;
      --accent: #c98a34;
      --accent-2: #d86f3d;
      --accent-soft: rgba(201,138,52,.12);
      --cool: #2f8f83;
      --cool-soft: rgba(47,143,131,.12);
      --shadow: 0 14px 30px rgba(42,34,24,.08);
      --shadow-hover: 0 18px 42px rgba(42,34,24,.14);
      --radius: 22px;
      --radius-sm: 16px;
      --radius-lg: 30px;
      --container: 1200px;
      --space: 24px;
      --space-lg: 36px;
      --space-xl: 64px;
      --ease: 180ms ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(201,138,52,.08), transparent 30%),
        radial-gradient(circle at top right, rgba(47,143,131,.08), transparent 24%),
        linear-gradient(180deg, #faf7f0 0%, var(--bg) 100%);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
      line-height:1.72;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    img{display:block;max-width:100%;height:auto}
    a{color:inherit;text-decoration:none}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(201,138,52,.22);color:var(--text)}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(250,247,240,.82);
      border-bottom:1px solid rgba(229,220,205,.7);
    }
    .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      min-height:76px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      color:var(--text);
      min-width:max-content;
    }
    .brand-mark{
      width:40px;
      height:40px;
      border-radius:14px;
      background:linear-gradient(145deg, rgba(201,138,52,.18), rgba(47,143,131,.14));
      border:1px solid rgba(201,138,52,.22);
      display:grid;
      place-items:center;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.65);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      border-radius:999px;
      background:rgba(201,138,52,.9);
    }
    .brand-mark::before{
      width:16px;
      height:16px;
      border:2px solid rgba(201,138,52,.95);
      background:transparent;
      top:10px;
      left:10px;
      box-shadow:
        0 -8px 0 -6px rgba(201,138,52,.85),
        0 8px 0 -6px rgba(201,138,52,.85),
        -8px 0 0 -6px rgba(201,138,52,.85),
        8px 0 0 -6px rgba(201,138,52,.85);
    }
    .brand-mark::after{
      width:10px;
      height:2px;
      background:rgba(47,143,131,.9);
      transform:rotate(28deg);
      top:19px;
      left:17px;
      box-shadow:6px 4px 0 0 rgba(47,143,131,.9);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-text strong{
      font-size:1rem;
      letter-spacing:.04em;
    }
    .brand-text span{
      margin-top:4px;
      font-size:.78rem;
      color:var(--muted);
      font-weight:500;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav a{
      position:relative;
      padding:10px 14px;
      color:var(--muted);
      border-radius:999px;
      transition:transform var(--ease), background var(--ease), color var(--ease), box-shadow var(--ease);
      outline:none;
    }
    .nav a:hover,
    .nav a:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.76);
      box-shadow:0 8px 24px rgba(42,34,24,.06);
      transform:translateY(-1px);
    }
    .nav .nav-cta{
      color:#fff;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow:0 14px 28px rgba(201,138,52,.22);
      padding-inline:16px;
    }
    .nav .nav-cta:hover,
    .nav .nav-cta:focus-visible{
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 16px 32px rgba(201,138,52,.28);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      cursor:pointer;
      transition:transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      font-weight:700;
      letter-spacing:.01em;
      text-decoration:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow:0 14px 28px rgba(201,138,52,.22);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 38px rgba(201,138,52,.3);
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.7);
      border-color:var(--line-strong);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      background:#fff;
      border-color:rgba(201,138,52,.45);
      transform:translateY(-2px);
      box-shadow:0 12px 26px rgba(42,34,24,.08);
    }
    .btn:active{transform:translateY(0)}
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 12px;
      border-radius:999px;
      color:var(--cool);
      background:var(--cool-soft);
      border:1px solid rgba(47,143,131,.16);
      font-size:.88rem;
      font-weight:700;
    }
    .badge-warm{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 12px;
      border-radius:999px;
      color:#9c6220;
      background:var(--accent-soft);
      border:1px solid rgba(201,138,52,.18);
      font-size:.88rem;
      font-weight:700;
    }

    .article-hero{
      padding:28px 0 18px;
    }
    .article-hero-shell{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(215,201,181,.85);
      border-radius:calc(var(--radius-lg) + 6px);
      background:
        linear-gradient(112deg, rgba(255,255,255,.94) 0%, rgba(255,255,255,.78) 58%, rgba(255,255,255,.62) 100%),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .article-hero-shell::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 14% 18%, rgba(201,138,52,.14), transparent 22%),
        radial-gradient(circle at 86% 8%, rgba(47,143,131,.11), transparent 18%);
      pointer-events:none;
    }
    .article-hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:34px;
      align-items:stretch;
      padding:36px;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin:0 0 18px;
      color:var(--muted);
      font-size:.92rem;
    }
    .breadcrumb a{
      color:var(--cool);
      font-weight:700;
      outline:none;
      border-radius:8px;
    }
    .breadcrumb a:hover,
    .breadcrumb a:focus-visible{
      color:#1f7168;
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .breadcrumb span{color:var(--faint)}
    .article-kicker{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:16px;
    }
    .article-title{
      margin:0;
      max-width:930px;
      color:var(--text);
      font-size:clamp(2rem, 4.2vw, 4.2rem);
      line-height:1.08;
      letter-spacing:-.05em;
      font-weight:900;
    }
    .article-summary{
      margin:20px 0 0;
      max-width:78ch;
      color:var(--muted);
      font-size:1.06rem;
      line-height:1.85;
    }
    .article-meta{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
      color:var(--muted);
      font-size:.94rem;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.7);
      border:1px solid rgba(215,201,181,.8);
      box-shadow:0 8px 18px rgba(42,34,24,.04);
    }
    .meta-dot{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--cool);
      box-shadow:0 0 0 5px rgba(47,143,131,.1);
    }
    .hero-side{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:18px;
      min-height:100%;
    }
    .cover-card{
      overflow:hidden;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid rgba(215,201,181,.8);
      box-shadow:var(--shadow);
    }
    .cover-card img{
      width:100%;
      aspect-ratio:4 / 3;
      object-fit:cover;
    }
    .cover-caption{
      padding:16px;
      color:var(--muted);
      font-size:.92rem;
    }
    .quick-panel{
      padding:18px;
      border-radius:var(--radius);
      background:rgba(255,255,255,.82);
      border:1px solid rgba(215,201,181,.82);
      box-shadow:0 12px 26px rgba(42,34,24,.06);
    }
    .quick-panel strong{
      display:block;
      margin-bottom:10px;
      font-size:1rem;
    }
    .quick-panel p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }

    main{padding:28px 0 0}
    .read-layout{
      display:grid;
      grid-template-columns:minmax(0, 780px) 340px;
      gap:32px;
      align-items:start;
      padding:22px 0 58px;
    }
    .article-card{
      background:var(--surface-strong);
      border:1px solid rgba(215,201,181,.86);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .article-toolbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 22px;
      border-bottom:1px solid var(--line);
      background:linear-gradient(180deg, rgba(251,248,242,.88), rgba(255,255,255,.88));
    }
    .toolbar-title{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:.94rem;
      font-weight:700;
    }
    .toolbar-title::before{
      content:"";
      width:24px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--accent), var(--cool));
    }
    .article-content{
      padding:34px 38px 42px;
      color:#35312c;
      font-size:1.06rem;
      line-height:1.9;
      word-break:break-word;
    }
    .article-content h2,
    .article-content h3,
    .article-content h4{
      color:var(--text);
      line-height:1.35;
      letter-spacing:-.02em;
      font-weight:850;
    }
    .article-content h2{
      margin:2.1em 0 .8em;
      padding-top:.15em;
      font-size:1.72rem;
    }
    .article-content h3{
      margin:1.8em 0 .7em;
      font-size:1.36rem;
    }
    .article-content h4{
      margin:1.5em 0 .55em;
      font-size:1.12rem;
    }
    .article-content p{margin:0 0 1.15em}
    .article-content a{
      color:#9c6220;
      font-weight:700;
      border-bottom:1px solid rgba(201,138,52,.32);
      transition:color var(--ease), border-color var(--ease);
    }
    .article-content a:hover,
    .article-content a:focus-visible{
      color:#7d4d18;
      border-color:rgba(201,138,52,.78);
      outline:none;
    }
    .article-content ul,
    .article-content ol{
      margin:0 0 1.2em 1.2em;
      padding:0;
    }
    .article-content li{margin:.4em 0}
    .article-content blockquote{
      margin:1.6em 0;
      padding:18px 20px;
      border-left:4px solid var(--accent);
      border-radius:0 var(--radius-sm) var(--radius-sm) 0;
      background:var(--accent-soft);
      color:#4c443a;
    }
    .article-content img{
      width:100%;
      margin:1.6em 0 .6em;
      border-radius:var(--radius);
      border:1px solid var(--line);
      box-shadow:0 12px 28px rgba(42,34,24,.08);
      object-fit:cover;
    }
    .article-content figure{margin:1.6em 0}
    .article-content figcaption{
      margin-top:8px;
      color:var(--faint);
      text-align:center;
      font-size:.9rem;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-sm);
      margin:1.4em 0;
      background:#fff;
    }
    .article-content th,
    .article-content td{
      padding:12px 14px;
      border-bottom:1px solid var(--line);
      vertical-align:top;
    }
    .article-content th{
      background:#fbf8f2;
      font-weight:800;
    }
    .article-content tr:last-child td{border-bottom:0}
    .article-content code{
      padding:.15em .42em;
      border-radius:8px;
      background:#f4eee4;
      color:#8b5319;
      font-size:.92em;
    }
    .empty-state{
      padding:42px 38px;
      text-align:center;
    }
    .empty-state h2{
      margin:0 0 12px;
      font-size:1.8rem;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .empty-state p{
      margin:0 auto 22px;
      max-width:48ch;
      color:var(--muted);
    }

    .side-stack{
      position:sticky;
      top:98px;
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .side-card{
      padding:22px;
      border-radius:var(--radius);
      background:rgba(255,255,255,.88);
      border:1px solid rgba(215,201,181,.82);
      box-shadow:var(--shadow);
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .side-card:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(201,138,52,.34);
    }
    .side-card h2,
    .side-card h3{
      margin:0 0 12px;
      font-size:1.1rem;
      font-weight:850;
      letter-spacing:-.02em;
    }
    .side-card p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }
    .toc-list,
    .read-list{
      display:grid;
      gap:10px;
      margin-top:14px;
    }
    .read-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px;
      border-radius:var(--radius-sm);
      background:#fbf8f2;
      border:1px solid rgba(229,220,205,.9);
      color:var(--muted);
      font-weight:700;
      transition:background var(--ease), color var(--ease), transform var(--ease), border-color var(--ease);
    }
    .read-link:hover,
    .read-link:focus-visible{
      color:var(--text);
      background:#fff;
      border-color:rgba(201,138,52,.42);
      transform:translateX(2px);
      outline:none;
    }
    .read-link span:last-child{color:var(--accent)}
    .time-line{
      display:grid;
      gap:12px;
      margin-top:14px;
    }
    .time-line-item{
      display:grid;
      grid-template-columns:18px 1fr;
      gap:10px;
      align-items:start;
      color:var(--muted);
      font-size:.94rem;
    }
    .time-line-item i{
      width:10px;
      height:10px;
      margin-top:8px;
      border-radius:50%;
      background:var(--cool);
      box-shadow:0 0 0 5px rgba(47,143,131,.1);
    }

    .section{
      padding:58px 0;
      border-top:1px solid rgba(229,220,205,.72);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:24px;
    }
    .section-title{
      margin:0;
      font-size:clamp(1.55rem, 2.5vw, 2.4rem);
      line-height:1.22;
      letter-spacing:-.04em;
      font-weight:900;
    }
    .section-desc{
      margin:8px 0 0;
      max-width:60ch;
      color:var(--muted);
    }
    .latest-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
    }
    .feature-read{
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(215,201,181,.82);
      box-shadow:var(--shadow);
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .feature-read:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(201,138,52,.34);
    }
    .feature-read img{
      width:100%;
      aspect-ratio:16 / 9;
      object-fit:cover;
    }
    .feature-body{padding:22px}
    .feature-body h3{
      margin:12px 0 10px;
      font-size:1.35rem;
      font-weight:850;
      letter-spacing:-.02em;
    }
    .feature-body p{
      margin:0 0 18px;
      color:var(--muted);
    }
    .mini-list{
      display:grid;
      gap:14px;
    }
    .mini-item{
      padding:18px;
      border-radius:var(--radius);
      background:rgba(255,255,255,.86);
      border:1px solid rgba(215,201,181,.82);
      box-shadow:0 10px 24px rgba(42,34,24,.05);
      transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }
    .mini-item:hover{
      transform:translateY(-2px);
      box-shadow:var(--shadow);
      border-color:rgba(47,143,131,.28);
    }
    .mini-item h3{
      margin:10px 0 6px;
      font-size:1.08rem;
      font-weight:850;
    }
    .mini-item p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:28px;
      align-items:start;
    }
    .faq-note{
      padding:26px;
      border-radius:var(--radius-lg);
      background:linear-gradient(145deg, rgba(255,255,255,.9), rgba(251,248,242,.86));
      border:1px solid rgba(215,201,181,.82);
      box-shadow:var(--shadow);
    }
    .faq-note h2{
      margin:0 0 12px;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .faq-note p{
      margin:0;
      color:var(--muted);
    }
    .accordion{
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid rgba(215,201,181,.86);
      border-radius:var(--radius);
      overflow:hidden;
      background:rgba(255,255,255,.9);
      box-shadow:0 10px 22px rgba(42,34,24,.05);
    }
    .accordion-button{
      width:100%;
      padding:18px 20px;
      border:0;
      background:transparent;
      color:var(--text);
      display:flex;
      justify-content:space-between;
      gap:16px;
      text-align:left;
      font-weight:850;
      cursor:pointer;
      outline:none;
    }
    .accordion-button::after{
      content:"+";
      width:26px;
      height:26px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:var(--accent-soft);
      color:#9c6220;
      transition:transform var(--ease), background var(--ease);
    }
    .accordion-button[aria-expanded="true"]::after{
      content:"−";
      background:var(--cool-soft);
      color:var(--cool);
      transform:rotate(180deg);
    }
    .accordion-button:focus-visible{
      box-shadow:inset 0 0 0 3px rgba(201,138,52,.22);
    }
    .accordion-panel{
      display:none;
      padding:0 20px 18px;
      color:var(--muted);
    }
    .accordion-panel.open{display:block}

    .cta-block{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      padding:34px;
      border:1px solid rgba(215,201,181,.82);
      background:
        linear-gradient(135deg, rgba(37,37,37,.9), rgba(72,57,38,.86)),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      color:#fff;
      box-shadow:var(--shadow-hover);
    }
    .cta-block::after{
      content:"";
      position:absolute;
      right:-80px;
      top:-100px;
      width:260px;
      height:260px;
      border-radius:50%;
      background:rgba(201,138,52,.24);
      filter:blur(4px);
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .cta-block h2{
      margin:0 0 10px;
      font-size:clamp(1.5rem, 2.6vw, 2.5rem);
      line-height:1.25;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .cta-block p{
      margin:0;
      color:rgba(255,255,255,.78);
      max-width:68ch;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .cta-block .btn-secondary{
      background:rgba(255,255,255,.1);
      color:#fff;
      border-color:rgba(255,255,255,.28);
    }
    .cta-block .btn-secondary:hover,
    .cta-block .btn-secondary:focus-visible{
      background:rgba(255,255,255,.18);
      color:#fff;
    }

    .site-footer{
      padding:54px 0 28px;
      background:rgba(37,37,37,.96);
      color:rgba(255,255,255,.82);
      margin-top:58px;
    }
    .footer-shell{
      display:grid;
      gap:30px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .7fr .7fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand .brand{
      color:#fff;
      margin-bottom:14px;
    }
    .footer-brand .brand-text span{color:rgba(255,255,255,.58)}
    .footer-brand p{
      margin:0;
      max-width:44ch;
      color:rgba(255,255,255,.62);
    }
    .footer-col h4{
      margin:0 0 14px;
      color:#fff;
      font-size:1rem;
      font-weight:850;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.62);
      transition:color var(--ease), transform var(--ease);
      width:max-content;
      max-width:100%;
      outline:none;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:#fff;
      transform:translateX(2px);
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .footer-note{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.12);
      color:rgba(255,255,255,.54);
      font-size:.92rem;
    }

    @media (max-width: 1024px){
      .article-hero-grid,
      .read-layout,
      .latest-grid,
      .faq-wrap{
        grid-template-columns:1fr;
      }
      .hero-side{
        display:grid;
        grid-template-columns:1fr 1fr;
      }
      .side-stack{
        position:static;
        display:grid;
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .cta-inner{
        align-items:flex-start;
        flex-direction:column;
      }
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width: 768px){
      .header-inner{
        min-height:auto;
        padding:14px 0;
        align-items:flex-start;
        flex-direction:column;
      }
      .nav{
        width:100%;
        justify-content:flex-start;
        overflow-x:auto;
        padding-bottom:2px;
        flex-wrap:nowrap;
      }
      .nav a{white-space:nowrap}
      .article-hero{padding-top:18px}
      .article-hero-grid{padding:24px}
      .article-title{font-size:clamp(1.8rem, 9vw, 3rem)}
      .article-summary{font-size:1rem}
      .hero-side,
      .side-stack{
        grid-template-columns:1fr;
      }
      .article-content{padding:28px 22px 34px}
      .article-toolbar{
        align-items:flex-start;
        flex-direction:column;
      }
      .section{padding:44px 0}
      .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width: 520px){
      .container{width:min(100% - 24px, var(--container))}
      .brand-text span{display:none}
      .article-hero-grid{padding:18px}
      .breadcrumb{font-size:.86rem}
      .article-meta{align-items:flex-start}
      .meta-pill{width:100%;justify-content:flex-start}
      .article-card,
      .cta-block,
      .article-hero-shell{
        border-radius:24px;
      }
      .article-content{
        font-size:1rem;
        line-height:1.86;
      }
      .article-content h2{font-size:1.42rem}
      .article-content h3{font-size:1.22rem}
      .btn{
        width:100%;
        min-height:46px;
      }
      .hero-actions,
      .cta-actions{width:100%}
      .footer-note{flex-direction:column}
    }

/* 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}