/* roulang page: index */
:root{
      --bg:#101114;
      --bg-2:#15161A;
      --bg-3:#1B1D22;
      --bg-4:#21242A;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(33,214,179,.24);
      --text:#F7F3EA;
      --text-2:#C9CBD1;
      --text-3:#8B9099;
      --accent:#21D6B3;
      --accent-2:#FFB454;
      --accent-3:#62F1D1;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-soft:0 12px 30px rgba(0,0,0,.18);
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --radius-sm:14px;
      --container:1220px;
      --gap:24px;
      --section:88px;
      --transition:220ms cubic-bezier(.2,.8,.2,1);
      --header-h:84px;
    }

    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;
      background:
        radial-gradient(circle at 15% 10%, rgba(33,214,179,.14), transparent 24%),
        radial-gradient(circle at 90% 0%, rgba(255,180,84,.10), transparent 20%),
        linear-gradient(180deg, #0D0E11 0%, #101114 34%, #0F1013 100%);
      color:var(--text-2);
      line-height:1.85;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(33,214,179,.26);color:var(--text)}
    :focus-visible{outline:2px solid var(--accent);outline-offset:3px;box-shadow:0 0 0 4px rgba(33,214,179,.14)}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .section{padding:var(--section) 0;position:relative}
    .section-head{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
    .section-head h2{
      margin:0;
      color:var(--text);
      font-size:clamp(24px,3vw,38px);
      line-height:1.18;
      letter-spacing:-.02em;
    }
    .section-head p{
      margin:0;
      max-width:760px;
      color:var(--text-3);
      font-size:15px;
      line-height:1.8;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:saturate(150%) blur(14px);
      background:rgba(14,15,18,.48);
      border-bottom:1px solid transparent;
      transition:background var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .site-header.is-scrolled{
      background:rgba(12,13,16,.92);
      border-bottom-color:var(--line);
      box-shadow:0 10px 30px rgba(0,0,0,.22);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:14px;
      min-width:0;
    }
    .brand-mark{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;place-items:center;
      background:
        linear-gradient(135deg, rgba(33,214,179,.98), rgba(98,241,209,.85));
      color:#07110F;
      font-weight:800;
      letter-spacing:.04em;
      box-shadow:0 10px 24px rgba(33,214,179,.22), inset 0 1px 0 rgba(255,255,255,.38);
      flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;gap:2px;min-width:0}
    .brand-text strong{
      color:var(--text);
      font-size:16px;
      line-height:1.25;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:min(44vw, 360px);
    }
    .brand-text span{
      color:var(--text-3);
      font-size:12px;
      line-height:1.4;
    }

    .site-nav{
      display:flex;
      align-items:center;
      gap:6px;
      padding:8px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.05);
    }
    .site-nav a,
    .mobile-nav a{
      color:var(--text-2);
      font-size:14px;
      line-height:1;
      padding:12px 16px;
      border-radius:999px;
      transition:background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition);
    }
    .site-nav a:hover,
    .mobile-nav a:hover{
      color:var(--text);
      background:rgba(33,214,179,.10);
    }
    .site-nav a.is-active,
    .mobile-nav a.is-active{
      color:#08110F;
      background:linear-gradient(135deg, var(--accent), #6AF0D3);
      box-shadow:0 10px 20px rgba(33,214,179,.18);
    }

    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      font-size:14px;
      letter-spacing:.01em;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition);
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      color:#08110F;
      background:linear-gradient(135deg, var(--accent), #72F4D8);
      box-shadow:0 14px 26px rgba(33,214,179,.20);
    }
    .btn-primary:hover{box-shadow:0 18px 28px rgba(33,214,179,.24)}
    .btn-ghost{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.08);
    }
    .btn-ghost:hover{
      border-color:rgba(33,214,179,.28);
      background:rgba(33,214,179,.08);
    }
    .btn-soft{
      color:var(--text);
      background:rgba(255,180,84,.10);
      border-color:rgba(255,180,84,.18);
    }
    .btn-soft:hover{
      background:rgba(255,180,84,.14);
      border-color:rgba(255,180,84,.28);
    }

    .menu-toggle{
      display:none;
      width:48px;height:48px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:16px;
      background:rgba(255,255,255,.03);
      color:var(--text);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      transition:background var(--transition), border-color var(--transition), transform var(--transition);
    }
    .menu-toggle span{
      width:18px;height:2px;border-radius:2px;
      background:currentColor;
      display:block;
    }
    .menu-toggle:hover{
      background:rgba(33,214,179,.08);
      border-color:rgba(33,214,179,.22);
      transform:translateY(-1px);
    }

    .mobile-panel{
      display:none;
      padding:0 0 18px;
    }
    .mobile-panel-inner{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
      padding:14px;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(16,17,20,.96);
      box-shadow:var(--shadow-soft);
    }
    .mobile-nav{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:8px;
    }
    .mobile-nav a{
      border:1px solid rgba(255,255,255,.06);
      background:rgba(255,255,255,.03);
      text-align:center;
      padding:14px 10px;
    }

    .hero{
      position:relative;
      padding:30px 0 10px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(16,17,20,.18) 0%, rgba(16,17,20,.78) 72%, rgba(16,17,20,1) 100%);
      pointer-events:none;
      z-index:0;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);
      gap:28px;
      align-items:stretch;
      padding:24px 0 6px;
    }
    .hero-copy{
      padding:34px 0 18px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      color:#CFFCF2;
      background:rgba(33,214,179,.08);
      border:1px solid rgba(33,214,179,.18);
      font-size:13px;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .hero h1{
      margin:0;
      color:var(--text);
      font-size:clamp(34px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.03em;
      max-width:12.5em;
    }
    .hero p{
      margin:18px 0 0;
      max-width:720px;
      color:var(--text-2);
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      font-size:13px;
      color:var(--text-2);
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.07);
    }
    .chip::before{
      content:"";
      width:8px;height:8px;border-radius:99px;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(33,214,179,.10);
      flex:0 0 auto;
    }

    .hero-visual{
      position:relative;
      min-height:560px;
      display:flex;
      align-items:stretch;
      justify-content:flex-end;
    }
    .visual-panel{
      position:relative;
      width:100%;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(180deg, rgba(19,20,24,.30), rgba(19,20,24,.86)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      overflow:hidden;
      min-height:100%;
    }
    .visual-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 18%, rgba(33,214,179,.25), transparent 18%),
        radial-gradient(circle at 82% 26%, rgba(255,180,84,.22), transparent 16%),
        linear-gradient(180deg, rgba(16,17,20,.10), rgba(16,17,20,.68));
      pointer-events:none;
    }
    .visual-screen{
      position:absolute;
      left:22px;right:22px;top:22px;bottom:22px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(8,10,14,.40);
      backdrop-filter:blur(3px);
      overflow:hidden;
      z-index:1;
    }
    .visual-screen img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.62;
      transform:scale(1.03);
    }
    .screen-glow{
      position:absolute;
      inset:auto 0 0 0;
      height:42%;
      background:linear-gradient(180deg, transparent 0%, rgba(16,17,20,.14) 20%, rgba(16,17,20,.72) 100%);
      z-index:2;
    }
    .visual-badge{
      position:absolute;
      top:28px;
      left:28px;
      z-index:3;
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      background:rgba(7,12,12,.72);
      color:#DFFDF7;
      border:1px solid rgba(33,214,179,.24);
      box-shadow:0 12px 24px rgba(0,0,0,.22);
      font-size:13px;
      backdrop-filter:blur(8px);
    }
    .visual-badge::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(33,214,179,.12);
    }
    .visual-stack{
      position:absolute;
      right:28px;
      bottom:28px;
      z-index:3;
      display:grid;
      gap:10px;
      width:min(270px, calc(100% - 56px));
    }
    .mini-card{
      padding:14px 16px;
      border-radius:20px;
      background:rgba(20,22,27,.82);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(10px);
    }
    .mini-card strong{
      display:block;
      color:var(--text);
      font-size:14px;
      margin-bottom:4px;
    }
    .mini-card span{
      display:block;
      color:var(--text-3);
      font-size:12px;
      line-height:1.6;
    }
    .mini-card.is-accent{
      background:linear-gradient(135deg, rgba(33,214,179,.18), rgba(17,19,23,.82));
      border-color:rgba(33,214,179,.22);
    }
    .hero-footer{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
      margin-top:24px;
    }
    .signal-card{
      padding:16px 18px;
      border-radius:22px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.07);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
      transition:transform var(--transition), border-color var(--transition), background var(--transition);
    }
    .signal-card:hover{
      transform:translateY(-2px);
      border-color:rgba(33,214,179,.22);
      background:rgba(33,214,179,.06);
    }
    .signal-card b{
      display:block;
      color:var(--text);
      font-size:14px;
      margin-bottom:4px;
    }
    .signal-card small{
      color:var(--text-3);
      font-size:12px;
      line-height:1.6;
    }

    .feature-grid{
      display:grid;
      grid-template-columns:1.02fr 1.36fr;
      gap:24px;
      align-items:start;
    }
    .feature-intro{
      padding:28px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02)),
        linear-gradient(135deg, rgba(33,214,179,.06), rgba(255,180,84,.04));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .feature-intro h3{
      margin:0 0 14px;
      color:var(--text);
      font-size:clamp(22px,2.4vw,30px);
      line-height:1.2;
    }
    .feature-intro p{
      margin:0;
      color:var(--text-2);
      font-size:16px;
      line-height:1.8;
    }
    .feature-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:20px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.07);
      color:var(--text-2);
      font-size:13px;
    }
    .badge::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--accent-2);
      box-shadow:0 0 0 4px rgba(255,180,84,.10);
    }
    .feature-cards{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .info-card{
      position:relative;
      padding:18px;
      border-radius:24px;
      background:var(--bg-3);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .info-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(33,214,179,.06), transparent 48%);
      opacity:0;
      transition:opacity var(--transition);
      pointer-events:none;
    }
    .info-card:hover{
      transform:translateY(-3px);
      border-color:rgba(33,214,179,.20);
      box-shadow:0 16px 36px rgba(0,0,0,.22);
    }
    .info-card:hover::before{opacity:1}
    .info-card .thumb{
      border-radius:18px;
      overflow:hidden;
      aspect-ratio:16/10;
      background:linear-gradient(135deg, rgba(33,214,179,.16), rgba(255,180,84,.10));
      border:1px solid rgba(255,255,255,.06);
      margin-bottom:14px;
    }
    .info-card .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.92;
      transform:scale(1.01);
      transition:transform var(--transition);
    }
    .info-card:hover .thumb img{transform:scale(1.05)}
    .info-card h3{
      margin:0;
      color:var(--text);
      font-size:18px;
      line-height:1.4;
    }
    .info-card p{
      margin:10px 0 0;
      color:var(--text-3);
      font-size:14px;
      line-height:1.75;
    }
    .highlight-banner{
      grid-column:1 / -1;
      display:grid;
      grid-template-columns:1fr 1.2fr;
      gap:0;
      overflow:hidden;
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .highlight-copy{
      padding:26px;
    }
    .highlight-copy .kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,180,84,.10);
      color:#FFE2B6;
      font-size:12px;
      border:1px solid rgba(255,180,84,.18);
      margin-bottom:14px;
    }
    .highlight-copy h3{
      margin:0 0 12px;
      color:var(--text);
      font-size:clamp(20px,2.8vw,32px);
      line-height:1.18;
    }
    .highlight-copy p{
      margin:0;
      color:var(--text-2);
      font-size:15px;
      line-height:1.85;
      max-width:54ch;
    }
    .highlight-media{
      position:relative;
      min-height:240px;
      background:
        linear-gradient(180deg, rgba(16,17,20,.06), rgba(16,17,20,.76)),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    }
    .highlight-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(16,17,20,.26), transparent 40%),
        radial-gradient(circle at 75% 28%, rgba(33,214,179,.16), transparent 20%);
    }
    .highlight-pill{
      position:absolute;
      left:22px;
      bottom:22px;
      z-index:1;
      padding:11px 14px;
      border-radius:999px;
      background:rgba(12,13,16,.76);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      font-size:13px;
      box-shadow:var(--shadow-soft);
    }

    .scene-grid{
      display:grid;
      grid-template-columns:minmax(0, .88fr) minmax(0, 1.12fr);
      gap:24px;
      align-items:stretch;
    }
    .scene-flow{
      padding:28px;
      border-radius:var(--radius-xl);
      background:var(--bg-3);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .scene-flow h3{
      margin:0 0 16px;
      color:var(--text);
      font-size:clamp(22px,2.8vw,30px);
      line-height:1.2;
    }
    .scene-flow ol{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:14px;
    }
    .scene-flow li{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:16px;
      border-radius:20px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
    }
    .step-num{
      width:34px;height:34px;border-radius:50%;
      flex:0 0 auto;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(33,214,179,.98), rgba(98,241,209,.82));
      color:#05100E;
      font-weight:800;
      font-size:14px;
      box-shadow:0 10px 20px rgba(33,214,179,.14);
    }
    .scene-flow strong{
      display:block;
      color:var(--text);
      font-size:16px;
      margin-bottom:4px;
    }
    .scene-flow span{
      color:var(--text-3);
      font-size:14px;
      line-height:1.7;
    }
    .scene-visual{
      position:relative;
      min-height:100%;
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(16,17,20,.18), rgba(16,17,20,.86)),
        url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
    }
    .scene-visual::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(16,17,20,.30), transparent 38%),
        radial-gradient(circle at 78% 18%, rgba(255,180,84,.18), transparent 18%),
        linear-gradient(180deg, transparent 54%, rgba(16,17,20,.82) 100%);
      pointer-events:none;
    }
    .scene-card{
      position:absolute;
      left:24px;
      right:24px;
      bottom:24px;
      z-index:1;
      padding:18px;
      border-radius:24px;
      background:rgba(12,13,16,.76);
      border:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(8px);
      box-shadow:var(--shadow-soft);
    }
    .scene-card strong{
      display:block;
      color:var(--text);
      font-size:18px;
      margin-bottom:6px;
    }
    .scene-card p{
      margin:0;
      color:var(--text-3);
      font-size:14px;
      line-height:1.75;
    }
    .time-line{
      display:flex;
      gap:10px;
      margin-top:14px;
      flex-wrap:wrap;
    }
    .time-line span{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      font-size:12px;
      color:#DDE2E8;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.06);
    }
    .time-line span::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--accent-2);
      box-shadow:0 0 0 4px rgba(255,180,84,.10);
    }

    .updates-wrap{
      display:grid;
      grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);
      gap:18px;
      align-items:start;
    }
    .post-card{
      position:relative;
      border-radius:var(--radius-xl);
      background:var(--bg-3);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .post-card:hover{
      transform:translateY(-3px);
      border-color:rgba(33,214,179,.18);
      box-shadow:0 18px 42px rgba(0,0,0,.24);
    }
    .post-media{
      position:relative;
      display:block;
      aspect-ratio:16/10;
      overflow:hidden;
      background:linear-gradient(135deg, rgba(33,214,179,.14), rgba(255,180,84,.08));
    }
    .post-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.92;
      transition:transform var(--transition);
    }
    .post-card:hover .post-media img{transform:scale(1.04)}
    .post-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 24%, rgba(12,13,16,.68) 100%);
    }
    .post-chip{
      position:absolute;
      left:18px;top:18px;
      z-index:1;
      display:inline-flex;
      align-items:center;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(12,13,16,.76);
      border:1px solid rgba(255,255,255,.08);
      color:#F6F8FA;
      font-size:12px;
      backdrop-filter:blur(8px);
    }
    .post-body{
      padding:20px 20px 22px;
    }
    .post-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px 14px;
      color:var(--text-3);
      font-size:12px;
      margin-bottom:12px;
    }
    .post-meta span{
      display:inline-flex;
      align-items:center;
      gap:7px;
    }
    .post-meta span::before{
      content:"";
      width:5px;height:5px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(33,214,179,.09);
      flex:0 0 auto;
    }
    .post-body h3{
      margin:0;
      color:var(--text);
      font-size:20px;
      line-height:1.42;
    }
    .post-body h3 a{
      color:inherit;
      transition:color var(--transition);
    }
    .post-card:hover .post-body h3 a{color:var(--accent)}
    .post-body p{
      margin:12px 0 0;
      color:var(--text-3);
      font-size:14px;
      line-height:1.8;
      display:-webkit-box;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:3;
      overflow:hidden;
    }
    .post-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:16px;
      color:#DDFEF6;
      font-size:14px;
      font-weight:700;
    }
    .post-link::after{
      content:"→";
      transition:transform var(--transition);
    }
    .post-link:hover::after{transform:translateX(3px)}
    .post-link:hover{color:var(--accent)}
    .post-list{
      display:grid;
      gap:14px;
    }
    .list-item{
      display:grid;
      grid-template-columns:112px minmax(0,1fr);
      gap:14px;
      padding:14px;
      border-radius:22px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.07);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
      transition:transform var(--transition), border-color var(--transition), background var(--transition);
    }
    .list-item:hover{
      transform:translateY(-2px);
      border-color:rgba(33,214,179,.18);
      background:rgba(33,214,179,.05);
    }
    .list-thumb{
      border-radius:18px;
      overflow:hidden;
      min-height:90px;
      background:linear-gradient(135deg, rgba(33,214,179,.16), rgba(255,180,84,.12));
      border:1px solid rgba(255,255,255,.06);
    }
    .list-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .list-content h3{
      margin:0;
      color:var(--text);
      font-size:16px;
      line-height:1.5;
      display:-webkit-box;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
      overflow:hidden;
    }
    .list-content h3 a{
      transition:color var(--transition);
    }
    .list-item:hover h3 a{color:var(--accent)}
    .list-content p{
      margin:8px 0 0;
      color:var(--text-3);
      font-size:13px;
      line-height:1.7;
      display:-webkit-box;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
      overflow:hidden;
    }
    .list-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px 12px;
      margin-top:10px;
      color:var(--text-3);
      font-size:12px;
    }
    .list-meta span{
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .list-meta span::before{
      content:"";
      width:4px;height:4px;border-radius:50%;
      background:var(--accent-2);
      flex:0 0 auto;
    }

    .empty-state{
      padding:28px;
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
      border:1px dashed rgba(255,255,255,.12);
      text-align:center;
      box-shadow:var(--shadow-soft);
    }
    .empty-graphic{
      width:92px;height:92px;
      margin:0 auto 16px;
      border-radius:28px;
      display:grid;
      place-items:center;
      background:radial-gradient(circle at 30% 30%, rgba(33,214,179,.36), rgba(33,214,179,.08) 44%, rgba(255,255,255,.04) 45%, rgba(255,255,255,.03) 100%);
      border:1px solid rgba(33,214,179,.18);
      color:var(--accent);
      font-size:36px;
      box-shadow:0 12px 26px rgba(0,0,0,.18);
    }
    .empty-state h3{
      margin:0;
      color:var(--text);
      font-size:20px;
      line-height:1.4;
    }
    .empty-state p{
      margin:10px auto 0;
      max-width:36ch;
      color:var(--text-3);
      font-size:14px;
      line-height:1.8;
    }
    .empty-actions{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:10px;
      margin-top:18px;
    }

    .proof-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:16px;
    }
    .proof-card{
      padding:22px;
      border-radius:24px;
      background:var(--bg-3);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), border-color var(--transition);
    }
    .proof-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,180,84,.20);
    }
    .proof-top{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .proof-dot{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(255,180,84,.16), rgba(33,214,179,.10));
      border:1px solid rgba(255,255,255,.07);
      color:#FFE2B6;
      font-size:20px;
      flex:0 0 auto;
    }
    .proof-card h3{
      margin:0;
      color:var(--text);
      font-size:18px;
      line-height:1.35;
    }
    .proof-card p{
      margin:0;
      color:var(--text-3);
      font-size:14px;
      line-height:1.8;
    }

    .faq-grid{
      display:grid;
      grid-template-columns:.84fr 1.16fr;
      gap:24px;
      align-items:start;
    }
    .faq-intro{
      position:sticky;
      top:108px;
      padding:28px;
      border-radius:var(--radius-xl);
      background:
        linear-gradient(180deg, rgba(33,214,179,.07), rgba(255,255,255,.02)),
        var(--bg-3);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .faq-intro h2{
      margin:0;
      color:var(--text);
      font-size:clamp(24px,3vw,38px);
      line-height:1.15;
    }
    .faq-intro p{
      margin:14px 0 0;
      color:var(--text-2);
      font-size:15px;
      line-height:1.85;
    }
    .faq-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .faq-tags .badge{
      padding:8px 12px;
      font-size:12px;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    details.faq-item{
      padding:0;
      border-radius:24px;
      background:var(--bg-3);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:border-color var(--transition), transform var(--transition);
    }
    details.faq-item[open]{
      border-color:rgba(33,214,179,.18);
    }
    details.faq-item:hover{
      transform:translateY(-2px);
      border-color:rgba(33,214,179,.18);
    }
    summary.faq-question{
      list-style:none;
      padding:18px 20px;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:var(--text);
      font-size:16px;
      font-weight:700;
      line-height:1.5;
    }
    summary.faq-question::-webkit-details-marker{display:none}
    .faq-question span{
      display:block;
    }
    .faq-icon{
      width:34px;height:34px;border-radius:50%;
      flex:0 0 auto;
      display:grid;place-items:center;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.07);
      color:var(--accent);
      transition:transform var(--transition), background var(--transition), border-color var(--transition);
    }
    details[open] .faq-icon{
      transform:rotate(45deg);
      background:rgba(33,214,179,.08);
      border-color:rgba(33,214,179,.18);
    }
    .faq-answer{
      padding:0 20px 18px;
      color:var(--text-3);
      font-size:14px;
      line-height:1.85;
    }

    .cta-section{
      padding-top:20px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 10% 20%, rgba(33,214,179,.20), transparent 20%),
        radial-gradient(circle at 85% 18%, rgba(255,180,84,.18), transparent 18%),
        linear-gradient(180deg, rgba(24,26,31,.96), rgba(14,15,18,.98));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      padding:30px;
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(110deg, transparent 20%, rgba(33,214,179,.06) 38%, transparent 56%),
        linear-gradient(180deg, transparent, rgba(255,255,255,.015));
      pointer-events:none;
    }
    .cta-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:22px;
      align-items:center;
    }
    .cta-copy h2{
      margin:0;
      color:var(--text);
      font-size:clamp(26px,3.4vw,40px);
      line-height:1.18;
    }
    .cta-copy p{
      margin:14px 0 0;
      color:var(--text-2);
      font-size:15px;
      line-height:1.85;
      max-width:58ch;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .reminder-box{
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .reminder-box strong{
      display:block;
      color:var(--text);
      font-size:16px;
      margin-bottom:10px;
    }
    .reminder-box p{
      margin:0 0 14px;
      color:var(--text-3);
      font-size:13px;
      line-height:1.75;
    }
    .reminder-form{
      display:grid;
      gap:10px;
    }
    .field{
      width:100%;
      min-height:48px;
      padding:0 16px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(0,0,0,.22);
      color:var(--text);
      outline:none;
      transition:border-color var(--transition), background var(--transition), box-shadow var(--transition);
    }
    .field::placeholder{color:#7E848D}
    .field:focus{
      border-color:rgba(33,214,179,.28);
      background:rgba(0,0,0,.30);
      box-shadow:0 0 0 4px rgba(33,214,179,.10);
    }

    .site-footer{
      margin-top:var(--section);
      padding:34px 0 38px;
      background:linear-gradient(180deg, rgba(9,10,12,.24), rgba(8,9,11,.96));
      border-top:1px solid var(--line);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      gap:14px;
      align-items:flex-start;
    }
    .footer-brand .brand-mark{width:42px;height:42px;border-radius:14px}
    .footer-brand strong{
      display:block;
      color:var(--text);
      font-size:16px;
      line-height:1.3;
      margin-bottom:6px;
    }
    .footer-brand p{
      margin:0;
      color:var(--text-3);
      font-size:13px;
      line-height:1.8;
      max-width:58ch;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
      margin-bottom:14px;
    }
    .footer-links a{
      color:var(--text-2);
      padding:10px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
      font-size:13px;
      transition:background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
    }
    .footer-links a:hover{
      color:var(--text);
      border-color:rgba(33,214,179,.20);
      background:rgba(33,214,179,.08);
      transform:translateY(-1px);
    }
    .footer-copy{
      text-align:right;
      color:var(--text-3);
      font-size:12px;
      line-height:1.8;
    }

    .backtop{
      position:fixed;
      right:18px;
      bottom:18px;
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:rgba(17,19,23,.88);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text);
      box-shadow:var(--shadow-soft);
      opacity:0;
      visibility:hidden;
      transform:translateY(10px);
      transition:opacity var(--transition), visibility var(--transition), transform var(--transition), border-color var(--transition), background var(--transition);
      z-index:900;
    }
    .backtop.is-visible{
      opacity:1;
      visibility:visible;
      transform:translateY(0);
    }
    .backtop:hover{
      border-color:rgba(33,214,179,.24);
      background:rgba(33,214,179,.08);
    }

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

    @media (max-width: 1200px){
      :root{--section:76px}
      .hero-grid{grid-template-columns:1fr 1fr}
      .hero-visual{min-height:520px}
      .feature-grid{grid-template-columns:1fr}
      .highlight-banner{grid-template-columns:1fr}
      .updates-wrap{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .faq-intro{position:relative;top:0}
      .cta-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-copy{text-align:left}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width: 992px){
      .site-nav{display:none}
      .header-actions .btn{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel{display:block}
      .hero-grid{grid-template-columns:1fr;gap:18px}
      .hero-copy{padding:18px 0 0}
      .hero-visual{min-height:440px}
      .hero-footer{grid-template-columns:repeat(2,minmax(0,1fr))}
      .feature-cards{grid-template-columns:1fr 1fr}
      .proof-grid{grid-template-columns:1fr}
      .scene-grid{grid-template-columns:1fr}
      .scene-visual{min-height:420px}
    }
    @media (max-width: 768px){
      :root{--header-h:68px;--section:62px}
      .container{width:min(var(--container),calc(100% - 20px))}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-text strong{max-width:55vw;font-size:15px}
      .header-inner{min-height:68px}
      .hero h1{max-width:none}
      .hero p{font-size:16px}
      .hero-footer{grid-template-columns:1fr}
      .feature-cards{grid-template-columns:1fr}
      .list-item{grid-template-columns:1fr}
      .list-thumb{aspect-ratio:16/9;min-height:unset}
      .post-body h3{font-size:18px}
      .proof-card{padding:18px}
      summary.faq-question{padding:16px}
      .faq-answer{padding:0 16px 16px}
      .cta-panel{padding:22px}
      .reminder-box{padding:16px}
      .footer-links{gap:8px}
      .footer-links a{padding:9px 12px}
      .footer-brand{gap:12px}
    }
    @media (max-width: 560px){
      .hero-visual{min-height:360px}
      .visual-stack{left:18px;right:18px;bottom:18px;width:auto}
      .visual-badge{top:18px;left:18px}
      .scene-card{left:16px;right:16px;bottom:16px}
      .highlight-copy,.feature-intro,.scene-flow,.proof-card,.empty-state{padding:18px}
      .updates-wrap{gap:12px}
      .post-body{padding:16px}
      .cta-actions,.hero-actions{flex-direction:column}
      .btn{width:100%}
      .mobile-nav{grid-template-columns:1fr}
      .brand-text span{display:none}
      .section-head{margin-bottom:22px}
    }

    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      *,*::before,*::after{
        animation-duration:.01ms !important;
        animation-iteration-count:1 !important;
        transition-duration:.01ms !important;
        scroll-behavior:auto !important;
      }
    }

/* roulang page: article */
:root{
      --bg:#101114;
      --bg-2:#15161A;
      --bg-3:#1B1D22;
      --bg-4:#21242A;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(33,214,179,.24);
      --text:#F7F3EA;
      --text-2:#C9CBD1;
      --text-3:#8B9099;
      --accent:#21D6B3;
      --accent-2:#FFB454;
      --accent-3:#62F1D1;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-soft:0 12px 30px rgba(0,0,0,.18);
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --radius-sm:14px;
      --container:1220px;
      --gap:24px;
      --section:62px;
      --transition:220ms cubic-bezier(.2,.8,.2,1);
      --header-h:68px;
    }

    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;
      background:
        radial-gradient(circle at 15% 10%, rgba(33,214,179,.14), transparent 24%),
        radial-gradient(circle at 90% 0%, rgba(255,180,84,.10), transparent 20%),
        linear-gradient(180deg, #0D0E11 0%, #101114 34%, #0F1013 100%);
      color:var(--text-2);
      line-height:1.85;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    :focus-visible{
      outline:2px solid rgba(33,214,179,.9);
      outline-offset:3px;
      box-shadow:0 0 0 4px rgba(33,214,179,.14);
    }
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .section{padding:var(--section) 0;position:relative}
    .section.compact{padding:42px 0}
    .section-head{
      display:flex;
      flex-direction:column;
      gap:12px;
      margin-bottom:28px;
    }
    .section-head h2{
      margin:0;
      color:var(--text);
      font-size:clamp(24px,3vw,38px);
      line-height:1.18;
      letter-spacing:-.02em;
    }
    .section-head p{
      margin:0;
      max-width:760px;
      color:var(--text-3);
      font-size:15px;
      line-height:1.8;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:saturate(150%) blur(14px);
      background:rgba(14,15,18,.48);
      border-bottom:1px solid transparent;
      transition:background var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .site-header.is-scrolled{
      background:rgba(12,13,16,.92);
      border-bottom-color:var(--line);
      box-shadow:0 10px 30px rgba(0,0,0,.22);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:14px;
      min-width:0;
    }
    .brand-mark{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(33,214,179,.98), rgba(98,241,209,.85));
      color:#07110F;
      font-weight:800;
      letter-spacing:.04em;
      box-shadow:0 10px 24px rgba(33,214,179,.22), inset 0 1px 0 rgba(255,255,255,.38);
      flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;gap:2px;min-width:0}
    .brand-text strong{
      color:var(--text);
      font-size:16px;
      line-height:1.25;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:min(44vw, 360px);
    }
    .brand-text span{
      color:var(--text-3);
      font-size:12px;
      line-height:1.4;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:min(44vw, 360px);
    }
    .header-right{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:6px;
      padding:8px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.05);
    }
    .site-nav a,
    .mobile-nav a{
      color:var(--text-2);
      font-size:14px;
      line-height:1;
      padding:12px 16px;
      border-radius:999px;
      transition:background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .site-nav a:hover,
    .mobile-nav a:hover{
      color:var(--text);
      background:rgba(33,214,179,.10);
    }
    .site-nav a.is-active,
    .mobile-nav a.is-active{
      color:#08110F;
      background:linear-gradient(135deg, var(--accent), #6AF0D3);
      box-shadow:0 10px 20px rgba(33,214,179,.18);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      font-size:14px;
      letter-spacing:.01em;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition);
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      color:#08110F;
      background:linear-gradient(135deg, var(--accent), #72F4D8);
      box-shadow:0 14px 26px rgba(33,214,179,.20);
    }
    .btn-primary:hover{box-shadow:0 18px 28px rgba(33,214,179,.24)}
    .btn-ghost{
      color:var(--text);
      background:rgba(255,255,255,.03);
      border-color:rgba(255,255,255,.08);
    }
    .btn-ghost:hover{
      border-color:rgba(33,214,179,.28);
      background:rgba(33,214,179,.08);
    }
    .btn-soft{
      color:var(--text);
      background:rgba(255,180,84,.10);
      border-color:rgba(255,180,84,.18);
    }
    .btn-soft:hover{
      background:rgba(255,180,84,.14);
      border-color:rgba(255,180,84,.28);
    }
    .menu-toggle{
      display:none;
      width:48px;height:48px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:16px;
      background:rgba(255,255,255,.03);
      color:var(--text);
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      transition:background var(--transition), border-color var(--transition), transform var(--transition);
    }
    .menu-toggle span{
      width:18px;height:2px;border-radius:2px;
      background:currentColor;
      display:block;
    }
    .menu-toggle:hover{
      background:rgba(33,214,179,.08);
      border-color:rgba(33,214,179,.22);
      transform:translateY(-1px);
    }
    .mobile-panel{
      display:none;
      padding:0 0 18px;
    }
    .mobile-panel-inner{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
      padding:16px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:22px;
      background:rgba(15,16,19,.96);
      box-shadow:var(--shadow-soft);
    }
    .mobile-nav{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:8px;
    }
    .mobile-nav a{
      text-align:center;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
    }

    .article-hero{
      position:relative;
      padding:34px 0 18px;
      overflow:hidden;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(16,17,20,.42), rgba(16,17,20,.82)),
        radial-gradient(circle at 12% 15%, rgba(33,214,179,.12), transparent 30%),
        radial-gradient(circle at 90% 20%, rgba(255,180,84,.10), transparent 24%);
      pointer-events:none;
    }
    .article-hero .container{
      position:relative;
      z-index:1;
    }
    .crumbs{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      color:var(--text-3);
      font-size:13px;
      margin-bottom:16px;
    }
    .crumbs a{
      color:var(--text-3);
      transition:color var(--transition);
    }
    .crumbs a:hover{color:var(--accent)}
    .crumbs span.sep{opacity:.55}
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);
      gap:22px;
      align-items:stretch;
    }
    .hero-copy,
    .hero-media{
      border:1px solid rgba(255,255,255,.08);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, rgba(27,29,34,.82), rgba(21,22,26,.92));
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .hero-copy{
      padding:30px 30px 28px;
      position:relative;
    }
    .hero-copy::after{
      content:"";
      position:absolute;
      inset:auto -20% -30% auto;
      width:280px;height:280px;
      background:radial-gradient(circle, rgba(33,214,179,.16), transparent 68%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(33,214,179,.12);
      color:#9AF0DD;
      border:1px solid rgba(33,214,179,.20);
      font-size:12px;
      font-weight:700;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .hero-copy h1{
      margin:0;
      color:var(--text);
      font-size:clamp(28px,4vw,46px);
      line-height:1.16;
      letter-spacing:-.03em;
      max-width:14em;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-top:18px;
    }
    .meta-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      color:var(--text-2);
      font-size:13px;
    }
    .meta-chip strong{color:var(--text)}
    .hero-lead{
      margin:18px 0 0;
      color:var(--text-2);
      font-size:16px;
      line-height:1.85;
      max-width:46em;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .hero-hints{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:12px;
      margin-top:22px;
    }
    .hint-card{
      padding:14px 14px 13px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.07);
      color:var(--text-2);
    }
    .hint-card strong{
      display:block;
      color:var(--text);
      margin-bottom:4px;
      font-size:14px;
    }
    .hint-card span{
      display:block;
      font-size:12px;
      line-height:1.6;
      color:var(--text-3);
    }
    .hero-media{
      position:relative;
      min-height:100%;
      display:flex;
      flex-direction:column;
    }
    .hero-media .media-wrap{
      position:relative;
      min-height:100%;
      aspect-ratio: 4 / 3;
      background:
        linear-gradient(135deg, rgba(33,214,179,.08), rgba(255,180,84,.05)),
        #171920;
    }
    .hero-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.88;
      filter:saturate(1.02) contrast(1.03);
    }
    .hero-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(10,11,13,.04), rgba(10,11,13,.70)),
        radial-gradient(circle at 22% 15%, rgba(33,214,179,.18), transparent 25%),
        radial-gradient(circle at 82% 10%, rgba(255,180,84,.16), transparent 22%);
      pointer-events:none;
    }
    .media-badges{
      position:absolute;
      left:18px;
      top:18px;
      z-index:2;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .media-badge{
      padding:8px 11px;
      border-radius:999px;
      background:rgba(12,13,16,.55);
      border:1px solid rgba(255,255,255,.10);
      color:var(--text);
      font-size:12px;
      backdrop-filter:blur(8px);
    }
    .media-caption{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      z-index:2;
      padding:16px 16px 15px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(16,17,20,.22), rgba(16,17,20,.82));
      border:1px solid rgba(255,255,255,.09);
    }
    .media-caption strong{
      display:block;
      color:var(--text);
      font-size:15px;
      margin-bottom:6px;
    }
    .media-caption p{
      margin:0;
      color:var(--text-2);
      font-size:13px;
      line-height:1.7;
    }

    .article-shell{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:24px;
      align-items:start;
    }
    .article-card,
    .sidebar-card{
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(27,29,34,.88), rgba(20,21,25,.94));
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
    }
    .article-card{
      padding:28px;
      overflow:hidden;
    }
    .content-rich{
      color:var(--text-2);
      font-size:17px;
      line-height:1.9;
      overflow-wrap:anywhere;
    }
    .content-rich > *:first-child{margin-top:0}
    .content-rich > *:last-child{margin-bottom:0}
    .content-rich h2,
    .content-rich h3{
      color:var(--text);
      line-height:1.28;
      letter-spacing:-.02em;
      margin:2.1em 0 .8em;
      position:relative;
    }
    .content-rich h2{font-size:clamp(22px,2.4vw,30px);padding-left:14px}
    .content-rich h3{font-size:clamp(18px,1.8vw,22px);padding-left:14px}
    .content-rich h2::before,
    .content-rich h3::before{
      content:"";
      position:absolute;
      left:0;top:.16em;
      width:4px;height:1.05em;
      border-radius:99px;
      background:linear-gradient(180deg, var(--accent), rgba(33,214,179,.2));
      box-shadow:0 0 0 4px rgba(33,214,179,.08);
    }
    .content-rich p{margin:0 0 1em}
    .content-rich a{
      color:#8AF3DD;
      text-decoration:none;
      border-bottom:1px solid rgba(33,214,179,.25);
      transition:color var(--transition), border-color var(--transition), background var(--transition);
    }
    .content-rich a:hover{
      color:#C6FFF2;
      border-color:rgba(33,214,179,.55);
      background:rgba(33,214,179,.06);
    }
    .content-rich ul,
    .content-rich ol{
      margin:0 0 1.2em 1.2em;
      padding:0;
    }
    .content-rich li{margin:0 0 .55em}
    .content-rich blockquote{
      margin:1.4em 0;
      padding:18px 18px 18px 20px;
      border-left:4px solid var(--accent);
      border-radius:18px;
      background:rgba(33,214,179,.06);
      color:var(--text-2);
    }
    .content-rich img{
      width:100%;
      height:auto;
      border-radius:22px;
      margin:1.25em 0;
      box-shadow:var(--shadow-soft);
      border:1px solid rgba(255,255,255,.08);
    }
    .content-rich figure{
      margin:1.25em 0;
    }
    .content-rich figcaption{
      margin-top:10px;
      color:var(--text-3);
      font-size:13px;
      line-height:1.7;
    }
    .content-rich table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:1.25em 0;
      overflow:hidden;
      border-radius:18px;
      background:rgba(255,255,255,.02);
      border:1px solid rgba(255,255,255,.08);
      display:block;
      overflow-x:auto;
    }
    .content-rich table th,
    .content-rich table td{
      padding:14px 16px;
      border-bottom:1px solid rgba(255,255,255,.06);
      color:var(--text-2);
      white-space:nowrap;
    }
    .content-rich table th{
      background:rgba(33,214,179,.08);
      color:var(--text);
      font-weight:700;
    }
    .content-rich pre{
      margin:1.2em 0;
      padding:18px 20px;
      border-radius:20px;
      background:#0d0f12;
      color:#D7DEE5;
      overflow:auto;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
    }
    .content-rich code{
      font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
      font-size:.95em;
      background:rgba(255,255,255,.06);
      padding:.15em .4em;
      border-radius:8px;
      color:#E8FFF8;
    }
    .content-rich pre code{
      background:none;
      padding:0;
      color:inherit;
    }
    .article-foot-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
    }

    .sidebar{
      display:grid;
      gap:16px;
      position:sticky;
      top:calc(var(--header-h) + 18px);
    }
    .sidebar-card{
      padding:20px;
    }
    .sidebar-card h3{
      margin:0 0 14px;
      color:var(--text);
      font-size:18px;
      line-height:1.28;
      letter-spacing:-.02em;
    }
    .info-list{
      display:grid;
      gap:12px;
    }
    .info-item{
      padding:14px 14px 13px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
    }
    .info-item span{
      display:block;
      color:var(--text-3);
      font-size:12px;
      margin-bottom:5px;
    }
    .info-item strong{
      color:var(--text);
      font-size:14px;
      line-height:1.6;
      font-weight:700;
    }
    .mini-links{
      display:grid;
      gap:10px;
    }
    .mini-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:14px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
      color:var(--text-2);
      transition:transform var(--transition), border-color var(--transition), background var(--transition), color var(--transition);
    }
    .mini-link:hover{
      transform:translateY(-1px);
      border-color:rgba(33,214,179,.22);
      background:rgba(33,214,179,.08);
      color:var(--text);
    }
    .mini-link strong{
      font-size:14px;
      color:inherit;
    }
    .mini-link em{
      font-style:normal;
      color:var(--text-3);
      font-size:12px;
    }

    .cta-strip{
      margin-top:8px;
      padding:0 0 18px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(135deg, rgba(33,214,179,.12), rgba(255,180,84,.08)),
        linear-gradient(180deg, rgba(27,29,34,.92), rgba(20,21,25,.96));
      box-shadow:var(--shadow);
      padding:28px;
    }
    .cta-box::before,
    .cta-box::after{
      content:"";
      position:absolute;
      border-radius:999px;
      pointer-events:none;
    }
    .cta-box::before{
      inset:auto auto -70px -70px;
      width:220px;height:220px;
      background:radial-gradient(circle, rgba(33,214,179,.22), transparent 66%);
    }
    .cta-box::after{
      inset:16px 18px auto auto;
      width:90px;height:90px;
      background:radial-gradient(circle, rgba(255,180,84,.14), transparent 68%);
    }
    .cta-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:18px;
      align-items:center;
    }
    .cta-grid h2{
      margin:0;
      color:var(--text);
      font-size:clamp(22px,2.7vw,34px);
      line-height:1.18;
      letter-spacing:-.02em;
    }
    .cta-grid p{
      margin:10px 0 0;
      color:var(--text-2);
      font-size:15px;
      line-height:1.8;
      max-width:54em;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }

    .empty-state{
      max-width:860px;
      margin:0 auto;
      padding:28px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(27,29,34,.88), rgba(20,21,25,.94));
      box-shadow:var(--shadow-soft);
      text-align:center;
    }
    .empty-icon{
      width:72px;height:72px;
      margin:0 auto 16px;
      border-radius:24px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(33,214,179,.16), rgba(255,180,84,.10));
      color:var(--accent);
      font-size:28px;
      border:1px solid rgba(255,255,255,.08);
    }
    .empty-state h2{
      margin:0 0 10px;
      color:var(--text);
      font-size:clamp(22px,3vw,30px);
      line-height:1.2;
    }
    .empty-state p{
      margin:0 auto 20px;
      max-width:42em;
      color:var(--text-3);
      line-height:1.8;
      font-size:15px;
    }
    .empty-actions{
      display:flex;
      justify-content:center;
      gap:12px;
      flex-wrap:wrap;
    }

    .site-footer{
      margin-top:10px;
      padding:36px 0 30px;
      background:
        linear-gradient(180deg, rgba(13,14,17,0) 0%, rgba(12,13,16,.92) 18%, rgba(10,11,13,.98) 100%);
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
      gap:24px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      gap:14px;
      align-items:flex-start;
    }
    .footer-brand .brand-mark{width:42px;height:42px;border-radius:15px}
    .footer-brand strong{
      display:block;
      color:var(--text);
      font-size:16px;
      margin-bottom:8px;
    }
    .footer-brand p{
      margin:0;
      color:var(--text-3);
      font-size:14px;
      line-height:1.85;
      max-width:42em;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-start;
      margin-bottom:14px;
    }
    .footer-links a{
      padding:11px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.06);
      color:var(--text-2);
      font-size:13px;
      transition:background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
    }
    .footer-links a:hover{
      background:rgba(33,214,179,.08);
      border-color:rgba(33,214,179,.18);
      color:var(--text);
      transform:translateY(-1px);
    }
    .footer-copy{
      color:var(--text-3);
      font-size:13px;
      line-height:1.8;
    }

    @media (max-width: 1199px){
      .hero-grid{grid-template-columns:1fr 1fr}
      .article-shell{grid-template-columns:minmax(0,1fr) 300px}
      .hero-hints{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width: 991px){
      .site-nav,
      .header-actions .btn-ghost{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel.is-open{display:block}
      .hero-grid,
      .article-shell,
      .footer-grid,
      .cta-grid{
        grid-template-columns:1fr;
      }
      .sidebar{position:static}
      .hero-copy h1{max-width:none}
      .hero-media{min-height:320px}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width: 767px){
      :root{--section:52px;--header-h:64px}
      .header-inner{gap:12px}
      .brand-text strong{font-size:15px;max-width:52vw}
      .brand-text span{max-width:52vw}
      .hero-copy,
      .article-card,
      .sidebar-card,
      .cta-box{
        border-radius:24px;
      }
      .hero-copy{padding:22px}
      .article-card{padding:20px}
      .sidebar-card{padding:18px}
      .hero-hints{grid-template-columns:1fr}
      .media-caption{left:14px;right:14px;bottom:14px}
      .media-badges{left:14px;top:14px}
      .content-rich{font-size:16px}
      .mobile-nav{grid-template-columns:1fr}
      .cta-box{padding:22px}
      .footer-brand{align-items:flex-start}
    }
    @media (max-width: 559px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .brand-mark{width:42px;height:42px;border-radius:14px}
      .brand-text strong{max-width:58vw}
      .brand-text span{max-width:58vw}
      .hero-copy h1{font-size:clamp(28px,8vw,36px)}
      .hero-lead{font-size:15px}
      .hero-actions .btn,
      .cta-actions .btn,
      .empty-actions .btn{
        width:100%;
      }
      .hero-actions,
      .cta-actions,
      .empty-actions{
        flex-direction:column;
        align-items:stretch;
      }
      .meta-row{gap:8px}
      .meta-chip{width:100%;justify-content:center}
      .footer-links{gap:8px}
      .footer-links a{flex:1 1 calc(50% - 8px);text-align:center}
    }

/* 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}