/* roulang page: index */
:root{
      --color-bg:#111016;
      --color-bg-2:#17121f;
      --color-surface:#f6f2ee;
      --color-surface-2:#fffaf5;
      --color-card:#201927;
      --color-card-soft:#2a2331;
      --color-primary:#7c3aed;
      --color-primary-2:#8b5cf6;
      --color-accent:#ff6b4a;
      --color-mint:#37d99e;
      --color-text:#f8f5ff;
      --color-text-dark:#211b28;
      --color-muted:#c9c2d6;
      --color-muted-dark:#746b7f;
      --color-border:rgba(201,194,214,.22);
      --color-border-dark:rgba(42,38,48,.14);
      --shadow-card:0 18px 60px rgba(20,16,30,.14);
      --shadow-dark:0 24px 80px rgba(0,0,0,.34);
      --shadow-glow:0 0 0 1px rgba(139,92,246,.25),0 28px 90px rgba(124,58,237,.24);
      --radius-sm:14px;
      --radius-md:18px;
      --radius-lg:24px;
      --radius-xl:32px;
      --radius-pill:999px;
      --space-section:96px;
      --container-max:1180px;
      --nav-height:76px;
      --bottom-cta-height:82px;
      --transition:220ms ease;
    }

    *,*::before,*::after{box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{
      margin:0;
      min-width:320px;
      padding-bottom:calc(var(--bottom-cta-height) + env(safe-area-inset-bottom));
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      color:var(--color-text-dark);
      background:
        radial-gradient(circle at 16% 0%,rgba(255,107,74,.16),transparent 34%),
        radial-gradient(circle at 88% 9%,rgba(124,58,237,.18),transparent 30%),
        linear-gradient(180deg,#15111c 0%,#211a27 24%,#f6f2ee 24%,#f6f2ee 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),opacity var(--transition),transform var(--transition);}
    a:hover{color:inherit;}
    img{max-width:100%;height:auto;display:block;}
    button,input,textarea,select{font:inherit;}
    ::selection{background:rgba(255,107,74,.28);color:#fff;}

    .site-container{
      width:min(100% - 32px,var(--container-max));
      margin-inline:auto;
    }
    .section{
      padding:var(--space-section) 0;
      position:relative;
    }
    .section-tight{padding:76px 0;}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 13px;
      border-radius:var(--radius-pill);
      color:var(--color-primary);
      background:rgba(124,58,237,.08);
      border:1px solid rgba(124,58,237,.16);
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .section-kicker::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--color-accent);
      box-shadow:0 0 0 5px rgba(255,107,74,.12);
    }
    .section-title{
      margin:0;
      color:var(--color-text-dark);
      font-weight:800;
      letter-spacing:-.04em;
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
    }
    .section-desc{
      margin:16px 0 0;
      max-width:760px;
      color:var(--color-muted-dark);
      font-size:17px;
    }

    .btn{
      border:0;
      border-radius:var(--radius-pill);
      min-height:48px;
      padding:12px 22px;
      font-weight:800;
      letter-spacing:.01em;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),opacity var(--transition);
    }
    .btn:focus-visible,
    .nav-link:focus-visible,
    .timeline-chip:focus-visible,
    .link-arrow:focus-visible,
    .navbar-toggler:focus-visible,
    .bottom-close:focus-visible{
      outline:2px solid var(--color-accent);
      outline-offset:3px;
      box-shadow:0 0 0 5px rgba(255,107,74,.16);
    }
    .btn-primary-custom{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
      box-shadow:0 14px 32px rgba(124,58,237,.3);
    }
    .btn-primary-custom:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 44px rgba(255,107,74,.28);
    }
    .btn-secondary-custom{
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.22);
      backdrop-filter:blur(10px);
    }
    .btn-secondary-custom:hover{
      color:#fff;
      transform:translateY(-2px);
      background:rgba(255,255,255,.13);
      border-color:rgba(255,255,255,.36);
    }
    .btn-light-custom{
      color:var(--color-text-dark);
      background:#fff;
      border:1px solid rgba(42,38,48,.1);
      box-shadow:0 10px 28px rgba(32,25,39,.08);
    }
    .btn-light-custom:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 38px rgba(32,25,39,.13);
      border-color:rgba(124,58,237,.24);
    }
    .btn:active{transform:translateY(1px);box-shadow:none;}

    .site-header{
      position:sticky;
      top:0;
      z-index:1040;
      padding:14px 0;
      background:rgba(17,16,22,.78);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(16px);
    }
    .navbar{
      min-height:54px;
      padding:0;
    }
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:900;
      letter-spacing:-.03em;
      font-size:20px;
      white-space:normal;
      line-height:1.2;
      max-width:48vw;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      background:
        radial-gradient(circle at 70% 22%,rgba(255,255,255,.6),transparent 18%),
        linear-gradient(135deg,var(--color-primary),var(--color-accent));
      display:grid;
      place-items:center;
      box-shadow:0 12px 32px rgba(124,58,237,.3);
      flex:0 0 auto;
    }
    .brand-mark::before{
      content:"";
      width:0;
      height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      margin-left:3px;
      filter:drop-shadow(0 2px 4px rgba(0,0,0,.18));
    }
    .navbar-brand:hover{color:#fff;transform:translateY(-1px);}
    .navbar-toggler{
      border:1px solid rgba(255,255,255,.18);
      border-radius:14px;
      padding:10px 12px;
      color:#fff;
      background:rgba(255,255,255,.06);
    }
    .navbar-toggler-icon{
      filter:invert(1) grayscale(1) brightness(1.8);
    }
    .nav-main{
      display:flex;
      align-items:center;
      gap:8px;
      margin-left:32px;
    }
    .nav-main .nav-link{
      position:relative;
      color:rgba(255,255,255,.76);
      font-weight:700;
      padding:10px 14px;
      border-radius:14px;
      overflow:hidden;
    }
    .nav-main .nav-link::after{
      content:"";
      position:absolute;
      left:14px;right:14px;bottom:7px;
      height:2px;
      border-radius:99px;
      background:linear-gradient(90deg,var(--color-primary),var(--color-accent));
      transform:scaleX(0);
      transform-origin:left;
      transition:transform var(--transition);
    }
    .nav-main .nav-link:hover,
    .nav-main .nav-link.active{
      color:#fff;
      background:rgba(255,255,255,.06);
      transform:translateY(-2px);
    }
    .nav-main .nav-link:hover::after,
    .nav-main .nav-link.active::after{transform:scaleX(1);}
    .timeline-nav{
      display:flex;
      align-items:center;
      margin-left:auto;
      gap:0;
      padding:6px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.06);
    }
    .timeline-chip{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:34px;
      padding:7px 12px;
      border-radius:var(--radius-pill);
      color:rgba(255,255,255,.66);
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .timeline-chip:not(:last-child)::after{
      content:"";
      position:absolute;
      right:-7px;
      width:14px;
      height:1px;
      background:rgba(255,255,255,.24);
    }
    .timeline-chip .dot{
      width:7px;height:7px;border-radius:50%;
      background:rgba(255,255,255,.32);
    }
    .timeline-chip.active{
      color:#fff;
      border:1px solid rgba(255,107,74,.6);
      background:rgba(255,107,74,.12);
      box-shadow:inset 0 0 0 1px rgba(139,92,246,.18);
    }
    .timeline-chip.active .dot{
      background:var(--color-accent);
      box-shadow:0 0 0 5px rgba(255,107,74,.16);
    }

    .hero{
      min-height:680px;
      padding:42px 0 70px;
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:-80px -20px auto -20px;
      height:600px;
      background:
        linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,#000,transparent 90%);
      pointer-events:none;
    }
    .hero-stage{
      position:relative;
      border-radius:36px;
      padding:28px;
      min-height:540px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 82% 8%,rgba(255,107,74,.34),transparent 30%),
        radial-gradient(circle at 10% 80%,rgba(124,58,237,.42),transparent 32%),
        linear-gradient(135deg,rgba(32,25,39,.98),rgba(18,16,23,.96));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow-dark);
      overflow:hidden;
    }
    .hero-stage::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(120deg,transparent 0 40%,rgba(255,255,255,.08) 48%,transparent 56%),
        radial-gradient(circle at 80% 72%,rgba(55,217,158,.13),transparent 24%);
      opacity:.75;
      pointer-events:none;
    }
    .series-nav{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      padding:10px;
      width:max-content;
      max-width:100%;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      border-radius:var(--radius-pill);
      backdrop-filter:blur(12px);
    }
    .series-nav span{
      padding:8px 13px;
      border-radius:var(--radius-pill);
      color:rgba(255,255,255,.78);
      font-size:13px;
      font-weight:800;
      background:rgba(255,255,255,.06);
    }
    .series-nav span.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(124,58,237,.92),rgba(255,107,74,.86));
    }
    .hero-content{
      position:relative;
      z-index:1;
      max-width:920px;
      padding:52px 0 22px;
    }
    .hero-eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 14px;
      margin-bottom:18px;
      border-radius:var(--radius-pill);
      color:#fff;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.15);
      font-size:14px;
      font-weight:800;
    }
    .hero-eyebrow::before{
      content:"";
      width:9px;height:9px;border-radius:50%;
      background:var(--color-mint);
      box-shadow:0 0 0 6px rgba(55,217,158,.14);
    }
    .hero h1{
      margin:0;
      max-width:880px;
      font-size:clamp(36px,6.3vw,66px);
      line-height:1.06;
      letter-spacing:-.06em;
      font-weight:900;
    }
    .hero-lead{
      margin:22px 0 0;
      max-width:760px;
      color:rgba(255,255,255,.78);
      font-size:18px;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:wrap;
      margin-top:30px;
    }
    .hero-data{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.25fr .9fr .9fr;
      gap:14px;
      margin-top:30px;
    }
    .data-pill{
      min-height:86px;
      padding:18px 20px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(12px);
    }
    .data-pill strong{
      display:block;
      font-size:24px;
      line-height:1;
      color:#fff;
      font-weight:900;
    }
    .data-pill span{
      display:block;
      margin-top:8px;
      color:rgba(255,255,255,.68);
      font-size:13px;
    }
    .hero-preview-stack{
      position:absolute;
      right:28px;
      bottom:30px;
      width:min(420px,40vw);
      height:300px;
      z-index:0;
      pointer-events:none;
    }
    .preview-card{
      position:absolute;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.14);
      background:linear-gradient(145deg,rgba(255,255,255,.14),rgba(255,255,255,.05));
      box-shadow:0 22px 70px rgba(0,0,0,.28);
      backdrop-filter:blur(10px);
    }
    .preview-card.one{
      width:78%;
      height:210px;
      right:0;
      bottom:0;
      padding:20px;
    }
    .preview-card.two{
      width:66%;
      height:180px;
      right:72px;
      bottom:72px;
      transform:rotate(-7deg);
      opacity:.72;
    }
    .preview-card.three{
      width:52%;
      height:146px;
      right:22px;
      bottom:142px;
      transform:rotate(8deg);
      opacity:.5;
    }
    .abstract-thumb{
      height:104px;
      border-radius:20px;
      background:
        radial-gradient(circle at 32% 40%,rgba(255,107,74,.78),transparent 22%),
        linear-gradient(135deg,rgba(124,58,237,.88),rgba(55,217,158,.22));
      position:relative;
      overflow:hidden;
    }
    .abstract-thumb::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(255,255,255,.08) 25%,transparent 25% 50%,rgba(255,255,255,.05) 50% 75%,transparent 75%);
      background-size:40px 100%;
    }
    .play-circle{
      position:absolute;
      left:50%;top:50%;
      transform:translate(-50%,-50%);
      width:58px;height:58px;border-radius:50%;
      background:rgba(255,255,255,.18);
      border:1px solid rgba(255,255,255,.3);
      display:grid;
      place-items:center;
    }
    .play-circle::before{
      content:"";
      width:0;height:0;
      border-top:10px solid transparent;
      border-bottom:10px solid transparent;
      border-left:15px solid #fff;
      margin-left:4px;
    }
    .progress-ui{
      height:8px;
      margin-top:16px;
      border-radius:99px;
      background:rgba(255,255,255,.14);
      overflow:hidden;
    }
    .progress-ui span{
      display:block;
      width:68%;
      height:100%;
      border-radius:99px;
      background:linear-gradient(90deg,var(--color-mint),var(--color-accent));
    }
    .preview-meta{
      margin-top:14px;
      display:flex;
      justify-content:space-between;
      gap:10px;
      color:#fff;
      font-size:12px;
      font-weight:800;
    }
    .stage-bar{
      position:relative;
      z-index:1;
      margin-top:22px;
      padding:14px;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:10px;
      border-radius:22px;
      background:rgba(17,16,22,.62);
      border:1px solid rgba(255,255,255,.1);
    }
    .stage-step{
      position:relative;
      padding:12px 14px;
      border-radius:16px;
      color:rgba(255,255,255,.72);
      background:rgba(255,255,255,.06);
      font-size:13px;
      font-weight:800;
    }
    .stage-step strong{
      display:block;
      margin-bottom:3px;
      color:#fff;
      font-size:14px;
    }
    .stage-step.active{
      background:rgba(255,107,74,.14);
      border:1px solid rgba(255,107,74,.34);
    }

    .vertical-seed{
      margin-top:-30px;
    }
    .seed-grid{
      display:grid;
      grid-template-columns:1.2fr .9fr .9fr;
      gap:20px;
      margin-top:34px;
    }
    .seed-card{
      position:relative;
      min-height:310px;
      padding:26px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--color-border-dark);
      box-shadow:var(--shadow-card);
      overflow:hidden;
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .seed-card::before{
      content:attr(data-step);
      position:absolute;
      top:20px;right:22px;
      color:rgba(124,58,237,.18);
      font-size:46px;
      font-weight:900;
      letter-spacing:-.08em;
      line-height:1;
    }
    .seed-card:hover{
      transform:translateY(-4px);
      border-color:rgba(124,58,237,.34);
      box-shadow:0 24px 70px rgba(32,25,39,.16);
    }
    .seed-card.primary{
      color:#fff;
      background:
        radial-gradient(circle at 82% 22%,rgba(255,107,74,.34),transparent 32%),
        linear-gradient(145deg,#21182c,#15121a);
      border-color:rgba(255,255,255,.12);
      min-height:380px;
    }
    .seed-card.primary::before{color:rgba(255,255,255,.14);}
    .seed-icon{
      width:52px;height:52px;
      border-radius:18px;
      display:grid;
      place-items:center;
      margin-bottom:24px;
      background:rgba(124,58,237,.1);
      color:var(--color-primary);
      font-weight:900;
      font-size:22px;
    }
    .seed-card.primary .seed-icon{
      background:rgba(255,255,255,.1);
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
    }
    .seed-card h2,.seed-card h3{
      margin:0;
      font-size:clamp(22px,2.7vw,34px);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .seed-card p{
      margin:16px 0 0;
      color:var(--color-muted-dark);
      font-size:16px;
    }
    .seed-card.primary p{color:rgba(255,255,255,.72);}
    .status-badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-top:26px;
      padding:7px 12px;
      border-radius:var(--radius-pill);
      background:rgba(55,217,158,.1);
      color:#109e6d;
      border:1px solid rgba(55,217,158,.18);
      font-size:13px;
      font-weight:800;
      transition:transform var(--transition);
    }
    .seed-card:hover .status-badge{transform:translateX(4px);}
    .seed-card.primary .status-badge{
      color:#fff;
      background:rgba(55,217,158,.14);
      border-color:rgba(55,217,158,.24);
    }

    .hot-section{
      background:
        linear-gradient(180deg,rgba(255,255,255,.42),rgba(255,255,255,0)),
        radial-gradient(circle at 10% 8%,rgba(124,58,237,.08),transparent 32%);
    }
    .hot-layout{
      margin-top:34px;
      display:grid;
      grid-template-columns:.9fr 1.3fr;
      gap:22px;
      align-items:stretch;
    }
    .hot-panel{
      padding:28px;
      border-radius:28px;
      background:var(--color-card);
      color:#fff;
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-dark);
      min-height:100%;
    }
    .hot-panel h3{
      margin:0 0 16px;
      font-size:28px;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .hot-panel p{color:rgba(255,255,255,.72);margin:0;}
    .mini-meter{
      margin-top:28px;
      display:grid;
      gap:14px;
    }
    .meter-line{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.1);
    }
    .meter-head{
      display:flex;
      justify-content:space-between;
      color:rgba(255,255,255,.82);
      font-size:13px;
      font-weight:800;
      margin-bottom:10px;
    }
    .meter-track{
      height:8px;
      background:rgba(255,255,255,.12);
      border-radius:99px;
      overflow:hidden;
    }
    .meter-track i{
      display:block;
      height:100%;
      border-radius:99px;
      background:linear-gradient(90deg,var(--color-primary-2),var(--color-accent));
    }
    .hot-list{
      display:grid;
      gap:14px;
    }
    .hot-item{
      display:grid;
      grid-template-columns:64px 1fr auto;
      gap:18px;
      align-items:center;
      padding:18px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--color-border-dark);
      box-shadow:0 14px 38px rgba(32,25,39,.08);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .hot-item:hover{
      transform:translateY(-4px);
      border-color:rgba(255,107,74,.28);
      box-shadow:0 22px 52px rgba(32,25,39,.13);
    }
    .rank-box{
      width:64px;height:64px;
      border-radius:20px;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:22px;
      font-weight:900;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
      box-shadow:0 12px 26px rgba(124,58,237,.22);
    }
    .hot-item h3{
      margin:0;
      font-size:20px;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .hot-item p{
      margin:6px 0 0;
      color:var(--color-muted-dark);
      font-size:14px;
      line-height:1.65;
    }
    .link-arrow{
      width:44px;height:44px;
      display:grid;
      place-items:center;
      border-radius:16px;
      background:rgba(124,58,237,.08);
      color:var(--color-primary);
      font-weight:900;
      transition:transform var(--transition),background var(--transition),color var(--transition);
    }
    .hot-item:hover .link-arrow,
    .article-card:hover .link-arrow{
      transform:translateX(4px);
      color:#fff;
      background:var(--color-primary);
    }

    .scene-section{
      background:linear-gradient(180deg,#f6f2ee,#fffaf5);
    }
    .scene-wrap{
      margin-top:36px;
      padding:28px;
      border-radius:32px;
      background:#fff;
      border:1px solid var(--color-border-dark);
      box-shadow:var(--shadow-card);
    }
    .flow-list{
      display:grid;
      gap:18px;
      counter-reset:flow;
    }
    .flow-step{
      position:relative;
      padding:20px 20px 20px 72px;
      border-radius:22px;
      background:#faf7f3;
      border:1px solid rgba(42,38,48,.08);
    }
    .flow-step::before{
      counter-increment:flow;
      content:"0" counter(flow);
      position:absolute;
      left:20px;top:20px;
      width:36px;height:36px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:13px;
      font-weight:900;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
    }
    .flow-step:not(:last-child)::after{
      content:"";
      position:absolute;
      left:38px;
      top:60px;
      bottom:-18px;
      width:2px;
      background:linear-gradient(var(--color-primary),transparent);
      opacity:.25;
    }
    .flow-step h3{
      margin:0;
      font-size:18px;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .flow-step p{
      margin:7px 0 0;
      color:var(--color-muted-dark);
      font-size:14px;
    }
    .terminal-card{
      height:100%;
      min-height:430px;
      padding:20px;
      border-radius:28px;
      background:
        linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px),
        linear-gradient(145deg,#221a2d,#141118);
      background-size:28px 28px,28px 28px,100% 100%;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow-dark);
      color:#fff;
      overflow:hidden;
    }
    .terminal-top{
      display:flex;
      align-items:center;
      gap:8px;
      margin-bottom:18px;
    }
    .terminal-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.28);}
    .terminal-dot:nth-child(1){background:var(--color-accent);}
    .terminal-dot:nth-child(2){background:#ffd166;}
    .terminal-dot:nth-child(3){background:var(--color-mint);}
    .search-ui{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:rgba(255,255,255,.66);
      font-size:14px;
    }
    .terminal-list{
      margin-top:18px;
      display:grid;
      gap:12px;
    }
    .terminal-row{
      display:grid;
      grid-template-columns:52px 1fr auto;
      gap:14px;
      align-items:center;
      padding:14px;
      border-radius:20px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.1);
    }
    .ui-thumb{
      width:52px;height:52px;
      border-radius:16px;
      background:linear-gradient(135deg,rgba(139,92,246,.78),rgba(255,107,74,.62));
      position:relative;
    }
    .ui-thumb::after{
      content:"";
      position:absolute;
      left:50%;top:50%;
      transform:translate(-42%,-50%);
      width:0;height:0;
      border-top:7px solid transparent;
      border-bottom:7px solid transparent;
      border-left:10px solid #fff;
    }
    .terminal-row strong{display:block;font-size:14px;}
    .terminal-row span{display:block;margin-top:2px;color:rgba(255,255,255,.58);font-size:12px;}
    .quality-chip{
      padding:6px 9px;
      border-radius:999px;
      font-size:12px;
      font-weight:900;
      color:#fff;
      background:rgba(55,217,158,.16);
      border:1px solid rgba(55,217,158,.24);
    }
    .notice-card{
      margin-top:18px;
      padding:16px;
      border-radius:20px;
      background:rgba(255,107,74,.12);
      border:1px solid rgba(255,107,74,.22);
      color:rgba(255,255,255,.76);
      font-size:14px;
    }

    .voice-section{
      background:
        radial-gradient(circle at 80% 0%,rgba(255,107,74,.12),transparent 28%),
        linear-gradient(180deg,#fffaf5,#f6f2ee);
    }
    .voice-grid{
      margin-top:34px;
      display:grid;
      grid-template-columns:1.25fr 1.25fr .8fr;
      gap:18px;
    }
    .voice-card,.metric-card{
      border-radius:26px;
      background:#fff;
      border:1px solid var(--color-border-dark);
      box-shadow:0 16px 44px rgba(32,25,39,.08);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .voice-card{
      padding:24px;
      min-height:220px;
    }
    .voice-card:hover,.metric-card:hover{
      transform:translateY(-4px);
      border-color:rgba(124,58,237,.28);
      box-shadow:0 24px 62px rgba(32,25,39,.13),inset 0 0 34px rgba(124,58,237,.04);
    }
    .avatar-row{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
    }
    .avatar-dot{
      width:42px;height:42px;border-radius:50%;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
    }
    .avatar-row strong{display:block;font-weight:900;}
    .avatar-row span{display:block;font-size:12px;color:var(--color-muted-dark);}
    .voice-card p{
      margin:0;
      color:#4a4352;
      font-size:16px;
      line-height:1.82;
    }
    .metric-stack{display:grid;gap:18px;}
    .metric-card{
      padding:22px;
      overflow:hidden;
    }
    .metric-card strong{
      display:block;
      font-size:30px;
      line-height:1;
      color:var(--color-primary);
      font-weight:900;
    }
    .metric-card span{
      display:block;
      margin-top:8px;
      color:var(--color-muted-dark);
      font-size:13px;
    }
    .metric-line{
      height:4px;
      margin-top:16px;
      border-radius:99px;
      background:rgba(124,58,237,.1);
      overflow:hidden;
    }
    .metric-line i{
      display:block;
      height:100%;
      width:72%;
      border-radius:99px;
      background:linear-gradient(90deg,var(--color-primary),var(--color-accent));
      transition:width 500ms ease;
    }
    .metric-card:hover .metric-line i{width:92%;}

    .updates-section{
      background:#17121f;
      color:#fff;
      overflow:hidden;
    }
    .updates-section::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 12% 20%,rgba(124,58,237,.24),transparent 34%),
        radial-gradient(circle at 92% 74%,rgba(255,107,74,.16),transparent 28%);
      pointer-events:none;
    }
    .updates-section .site-container{position:relative;z-index:1;}
    .updates-section .section-title{color:#fff;}
    .updates-section .section-desc{color:rgba(255,255,255,.68);}
    .updates-layout{
      margin-top:36px;
      display:grid;
      grid-template-columns:.8fr 1.4fr;
      gap:24px;
      align-items:start;
    }
    .filter-panel{
      position:sticky;
      top:112px;
      padding:26px;
      border-radius:28px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow-dark);
    }
    .filter-panel h3{
      margin:0 0 12px;
      font-size:24px;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .filter-panel p{
      color:rgba(255,255,255,.66);
      margin:0 0 20px;
      font-size:14px;
    }
    .chip-cloud{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .info-chip{
      display:inline-flex;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      color:rgba(255,255,255,.76);
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      font-size:13px;
      font-weight:800;
    }
    .article-list{
      display:grid;
      gap:14px;
    }
    .article-card{
      display:grid;
      grid-template-columns:78px 1fr auto;
      gap:18px;
      align-items:center;
      padding:18px;
      border-radius:24px;
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      transition:transform var(--transition),border-color var(--transition),background var(--transition);
    }
    .article-card:hover{
      color:#fff;
      transform:translateY(-4px);
      background:rgba(255,255,255,.11);
      border-color:rgba(255,107,74,.36);
    }
    .date-box{
      width:78px;
      min-height:72px;
      border-radius:20px;
      display:grid;
      place-items:center;
      text-align:center;
      color:#fff;
      background:linear-gradient(135deg,rgba(124,58,237,.9),rgba(255,107,74,.82));
      font-size:12px;
      font-weight:900;
      line-height:1.3;
      padding:10px;
    }
    .article-card h3{
      margin:0;
      font-size:19px;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .article-card p{
      margin:7px 0 0;
      color:rgba(255,255,255,.62);
      font-size:14px;
      line-height:1.65;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .article-meta{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      margin-top:10px;
    }
    .article-meta span{
      padding:5px 9px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
      color:rgba(255,255,255,.7);
      font-size:12px;
      font-weight:800;
    }
    .empty-state{
      padding:34px;
      border-radius:28px;
      text-align:center;
      background:rgba(255,255,255,.08);
      border:1px dashed rgba(255,255,255,.24);
    }
    .empty-icon{
      width:62px;height:62px;
      margin:0 auto 16px;
      border-radius:22px;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:26px;
      font-weight:900;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
    }
    .empty-state p{
      color:rgba(255,255,255,.72);
      margin:0 0 18px;
    }

    .faq-section{
      background:#f6f2ee;
    }
    .faq-wrap{
      margin-top:34px;
      max-width:920px;
    }
    .accordion{
      display:grid;
      gap:12px;
    }
    .accordion-item{
      border:1px solid var(--color-border-dark);
      border-radius:22px !important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 12px 34px rgba(32,25,39,.07);
    }
    .accordion-button{
      min-height:68px;
      padding:20px 24px;
      color:var(--color-text-dark);
      background:#fff;
      font-weight:900;
      font-size:17px;
      border:0;
      box-shadow:none !important;
    }
    .accordion-button:not(.collapsed){
      color:var(--color-text-dark);
      background:linear-gradient(90deg,rgba(255,107,74,.1),rgba(124,58,237,.06));
      box-shadow:inset 4px 0 0 var(--color-accent) !important;
    }
    .accordion-button::after{
      width:18px;height:18px;
      background-size:18px;
      filter:hue-rotate(250deg) saturate(1.5);
      transition:transform var(--transition);
    }
    .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
    .accordion-body{
      padding:0 24px 22px 28px;
      color:var(--color-muted-dark);
      font-size:16px;
      line-height:1.86;
      background:#fff;
    }

    .guide-section{
      padding-bottom:118px;
      background:
        radial-gradient(circle at 16% 24%,rgba(124,58,237,.12),transparent 30%),
        linear-gradient(180deg,#f6f2ee,#fffaf5);
    }
    .guide-card{
      position:relative;
      padding:36px;
      border-radius:34px;
      color:#fff;
      background:
        radial-gradient(circle at 90% 20%,rgba(55,217,158,.18),transparent 28%),
        linear-gradient(135deg,#21172d,#151118);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow-dark);
      overflow:hidden;
    }
    .guide-card::before{
      content:"";
      position:absolute;
      inset:18px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.08);
      pointer-events:none;
    }
    .guide-card h2{
      position:relative;
      margin:0;
      font-size:clamp(28px,4.4vw,46px);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.05em;
      max-width:720px;
    }
    .guide-card p{
      position:relative;
      margin:18px 0 0;
      color:rgba(255,255,255,.72);
      max-width:740px;
      font-size:17px;
    }
    .guide-actions{
      position:relative;
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:28px;
    }

    .site-footer{
      padding:54px 0 38px;
      color:rgba(255,255,255,.76);
      background:#111016;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-size:20px;
      font-weight:900;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .footer-desc{
      max-width:620px;
      color:rgba(255,255,255,.62);
      margin:0;
      font-size:15px;
    }
    .footer-links{
      display:flex;
      justify-content:flex-end;
      gap:12px;
      flex-wrap:wrap;
    }
    .footer-links a{
      padding:8px 12px;
      border-radius:999px;
      color:rgba(255,255,255,.68);
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      font-size:14px;
      font-weight:800;
    }
    .footer-links a:hover{
      color:#fff;
      background:rgba(124,58,237,.18);
      border-color:rgba(124,58,237,.34);
      transform:translateY(-2px);
    }
    .copyright{
      margin-top:28px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.08);
      color:rgba(255,255,255,.5);
      font-size:13px;
    }

    .bottom-convert{
      position:fixed;
      left:50%;
      bottom:calc(16px + env(safe-area-inset-bottom));
      transform:translateX(-50%);
      z-index:1030;
      width:min(100% - 32px,900px);
      padding:10px;
      border-radius:999px;
      color:#fff;
      background:rgba(17,16,22,.88);
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 20px 70px rgba(0,0,0,.34);
      backdrop-filter:blur(16px);
      transition:opacity var(--transition),visibility var(--transition),transform var(--transition);
    }
    .bottom-convert.is-hidden{
      opacity:0;
      visibility:hidden;
      transform:translateX(-50%) translateY(20px);
    }
    .bottom-inner{
      display:grid;
      grid-template-columns:1fr auto auto auto;
      gap:10px;
      align-items:center;
    }
    .bottom-text{
      padding-left:14px;
      font-size:14px;
      color:rgba(255,255,255,.78);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .bottom-status{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 13px;
      border-radius:999px;
      background:rgba(55,217,158,.12);
      border:1px solid rgba(55,217,158,.22);
      color:#fff;
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .bottom-status i{
      width:8px;height:8px;border-radius:50%;
      background:var(--color-mint);
      box-shadow:0 0 0 5px rgba(55,217,158,.13);
    }
    .bottom-close{
      width:38px;height:38px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:rgba(255,255,255,.72);
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
      cursor:pointer;
      transition:background var(--transition),transform var(--transition);
    }
    .bottom-close:hover{
      background:rgba(255,255,255,.14);
      transform:rotate(90deg);
    }

    @media (max-width: 1199.98px){
      :root{--space-section:82px;}
      .hero-preview-stack{opacity:.5;}
      .voice-grid{grid-template-columns:1fr 1fr;}
      .metric-stack{grid-column:1 / -1;grid-template-columns:repeat(3,1fr);}
    }
    @media (max-width: 991.98px){
      body{
        background:
          radial-gradient(circle at 16% 0%,rgba(255,107,74,.16),transparent 34%),
          radial-gradient(circle at 88% 9%,rgba(124,58,237,.18),transparent 30%),
          linear-gradient(180deg,#15111c 0%,#211a27 22%,#f6f2ee 22%,#f6f2ee 100%);
      }
      .navbar-collapse{
        margin-top:14px;
        padding:16px;
        border-radius:22px;
        background:rgba(17,16,22,.96);
        border:1px solid rgba(255,255,255,.1);
        box-shadow:var(--shadow-dark);
      }
      .nav-main{
        margin-left:0;
        flex-direction:column;
        align-items:stretch;
      }
      .nav-main .nav-link{
        min-height:44px;
        display:flex;
        align-items:center;
      }
      .timeline-nav{
        margin:14px 0 0;
        border-radius:20px;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
      }
      .timeline-chip{
        min-height:44px;
        justify-content:center;
      }
      .timeline-chip:not(:last-child)::after{display:none;}
      .hero{min-height:auto;padding-top:26px;}
      .hero-stage{min-height:auto;}
      .hero-data{grid-template-columns:1fr 1fr;}
      .stage-bar{grid-template-columns:1fr 1fr;}
      .hero-preview-stack{display:none;}
      .seed-grid{grid-template-columns:1fr;}
      .seed-card,.seed-card.primary{min-height:auto;}
      .hot-layout,.updates-layout{grid-template-columns:1fr;}
      .filter-panel{position:relative;top:auto;}
      .scene-wrap{padding:20px;}
      .footer-grid{grid-template-columns:1fr;}
      .footer-links{justify-content:flex-start;}
      .bottom-inner{grid-template-columns:1fr auto auto;}
      .bottom-status{display:none;}
    }
    @media (max-width: 767.98px){
      :root{--space-section:64px;}
      body{padding-bottom:104px;}
      .site-container{padding-left:18px;padding-right:18px;}
      .navbar{min-height:68px;}
      .brand-mark{width:38px;height:38px;border-radius:14px;}
      .brand-text{font-size:16px;}
      .hero-stage{padding:20px;border-radius:28px;}
      .hero-content{padding:34px 0 12px;}
      .hero-lead{font-size:16px;line-height:1.82;}
      .hero-actions{display:grid;grid-template-columns:1fr;gap:10px;}
      .hero-actions .btn{width:100%;}
      .hero-data{grid-template-columns:1fr;gap:10px;}
      .data-pill{min-height:auto;}
      .stage-bar{grid-template-columns:1fr;}
      .section-kicker{font-size:12px;}
      .section-title{font-size:30px;}
      .section-desc{font-size:15px;}
      .seed-card{padding:22px;border-radius:24px;}
      .hot-item{grid-template-columns:54px 1fr;gap:14px;}
      .rank-box{width:54px;height:54px;border-radius:18px;font-size:18px;}
      .hot-item .link-arrow{grid-column:1 / -1;width:100%;height:42px;}
      .scene-wrap .row{gap:22px;}
      .terminal-card{min-height:auto;padding:16px;border-radius:24px;}
      .terminal-row{grid-template-columns:46px 1fr;align-items:start;}
      .terminal-row .quality-chip{grid-column:1 / -1;justify-self:start;}
      .voice-grid,.metric-stack{grid-template-columns:1fr;}
      .updates-layout{gap:18px;}
      .article-card{grid-template-columns:62px 1fr;align-items:start;}
      .date-box{width:62px;min-height:62px;border-radius:18px;font-size:11px;}
      .article-card .link-arrow{grid-column:1 / -1;width:100%;height:42px;}
      .accordion-button{font-size:16px;padding:18px 18px;min-height:62px;}
      .accordion-body{padding:0 18px 20px 22px;font-size:15px;}
      .guide-card{padding:26px;border-radius:28px;}
      .guide-actions{display:grid;grid-template-columns:1fr;}
      .guide-actions .btn{width:100%;}
      .bottom-convert{
        width:100%;
        left:0;
        bottom:0;
        transform:none;
        border-radius:22px 22px 0 0;
        padding:10px 12px calc(10px + env(safe-area-inset-bottom));
      }
      .bottom-convert.is-hidden{transform:translateY(100%);}
      .bottom-inner{grid-template-columns:1fr 1fr 38px;}
      .bottom-text{display:none;}
      .bottom-inner .btn{width:100%;padding-left:12px;padding-right:12px;}
      .footer-links{gap:8px;}
    }
    @media (max-width: 520px){
      .hero h1{font-size:35px;}
      .hot-panel,.filter-panel,.guide-card{padding:22px;}
      .flow-step{padding-left:64px;}
      .flow-step::before{left:18px;}
      .flow-step:not(:last-child)::after{left:36px;}
    }

/* roulang page: article */
:root{
      --color-bg:#111016;
      --color-bg-2:#17121f;
      --color-surface:#f6f2ee;
      --color-surface-2:#fffaf5;
      --color-card:#201927;
      --color-card-soft:#2a2331;
      --color-primary:#7c3aed;
      --color-primary-2:#8b5cf6;
      --color-accent:#ff6b4a;
      --color-mint:#37d99e;
      --color-text:#f8f5ff;
      --color-text-dark:#211b28;
      --color-muted:#c9c2d6;
      --color-muted-dark:#746b7f;
      --color-border:rgba(201,194,214,.22);
      --color-border-dark:rgba(42,38,48,.14);
      --shadow-card:0 18px 60px rgba(20,16,30,.14);
      --shadow-dark:0 24px 80px rgba(0,0,0,.34);
      --shadow-glow:0 0 0 1px rgba(139,92,246,.25),0 28px 90px rgba(124,58,237,.24);
      --radius-sm:14px;
      --radius-md:18px;
      --radius-lg:24px;
      --radius-xl:32px;
      --radius-pill:999px;
      --space-section:96px;
      --container-max:1180px;
      --nav-height:76px;
      --bottom-cta-height:82px;
      --transition:220ms ease;
    }
    *,*::before,*::after{box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{
      margin:0;
      min-width:320px;
      padding-bottom:calc(var(--bottom-cta-height) + env(safe-area-inset-bottom));
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      color:var(--color-text-dark);
      background:
        radial-gradient(circle at 12% 0%,rgba(255,107,74,.18),transparent 32%),
        radial-gradient(circle at 88% 8%,rgba(124,58,237,.2),transparent 34%),
        linear-gradient(180deg,#15111c 0%,#211a27 330px,#f6f2ee 330px,#f6f2ee 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),opacity var(--transition),transform var(--transition),background var(--transition),border-color var(--transition);}
    a:hover{color:inherit;}
    img{max-width:100%;height:auto;display:block;}
    button,input,textarea,select{font:inherit;}
    ::selection{background:rgba(255,107,74,.28);color:#fff;}
    .site-container{
      width:min(100% - 32px,var(--container-max));
      margin-inline:auto;
    }
    .section{padding:var(--space-section) 0;position:relative;}
    .section-tight{padding:76px 0;}
    .btn{
      border:0;
      border-radius:var(--radius-pill);
      min-height:48px;
      padding:12px 22px;
      font-weight:800;
      letter-spacing:.01em;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),opacity var(--transition);
    }
    .btn:focus-visible,
    .nav-link:focus-visible,
    .timeline-chip:focus-visible,
    .link-arrow:focus-visible,
    .navbar-toggler:focus-visible,
    .bottom-close:focus-visible,
    .footer-links a:focus-visible,
    .breadcrumb a:focus-visible{
      outline:2px solid var(--color-accent);
      outline-offset:3px;
      box-shadow:0 0 0 5px rgba(255,107,74,.16);
    }
    .btn-primary-custom{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
      box-shadow:0 14px 32px rgba(124,58,237,.3);
    }
    .btn-primary-custom:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 44px rgba(255,107,74,.28);
    }
    .btn-secondary-custom{
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.22);
      backdrop-filter:blur(10px);
    }
    .btn-secondary-custom:hover{
      color:#fff;
      transform:translateY(-2px);
      background:rgba(255,255,255,.13);
      border-color:rgba(255,255,255,.36);
    }
    .btn-light-custom{
      color:var(--color-text-dark);
      background:#fff;
      border:1px solid rgba(42,38,48,.1);
      box-shadow:0 10px 28px rgba(32,25,39,.08);
    }
    .btn-light-custom:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 38px rgba(32,25,39,.13);
      border-color:rgba(124,58,237,.24);
    }
    .btn:active{transform:translateY(1px);box-shadow:none;}

    .site-header{
      position:sticky;
      top:0;
      z-index:1040;
      padding:14px 0;
      background:rgba(17,16,22,.78);
      border-bottom:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(16px);
    }
    .navbar{min-height:54px;padding:0;}
    .navbar-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:900;
      letter-spacing:-.03em;
      font-size:20px;
      white-space:normal;
      line-height:1.2;
      max-width:48vw;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      background:
        radial-gradient(circle at 70% 22%,rgba(255,255,255,.6),transparent 18%),
        linear-gradient(135deg,var(--color-primary),var(--color-accent));
      display:grid;
      place-items:center;
      box-shadow:0 12px 32px rgba(124,58,237,.3);
      flex:0 0 auto;
      color:transparent;
      font-size:0;
      position:relative;
    }
    .brand-mark::before{
      content:"";
      width:0;
      height:0;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      margin-left:3px;
      filter:drop-shadow(0 2px 4px rgba(0,0,0,.18));
    }
    .brand-text{display:inline-block;}
    .navbar-brand:hover{color:#fff;transform:translateY(-1px);}
    .navbar-toggler{
      border:1px solid rgba(255,255,255,.18);
      border-radius:16px;
      width:46px;
      height:42px;
      padding:0;
      color:#fff;
      background:rgba(255,255,255,.07);
    }
    .navbar-toggler-icon{
      width:22px;
      height:22px;
      background-image:none;
      position:relative;
    }
    .navbar-toggler-icon::before,
    .navbar-toggler-icon::after,
    .navbar-toggler-icon{
      border-top:2px solid rgba(255,255,255,.9);
    }
    .navbar-toggler-icon::before,
    .navbar-toggler-icon::after{
      content:"";
      position:absolute;
      left:0;
      width:22px;
    }
    .navbar-toggler-icon::before{top:6px;}
    .navbar-toggler-icon::after{top:14px;}
    .navbar-collapse{justify-content:flex-end;gap:22px;}
    .nav-main{
      align-items:center;
      gap:6px;
      padding:6px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.05);
      border-radius:var(--radius-pill);
    }
    .nav-main .nav-link{
      position:relative;
      color:rgba(248,245,255,.72);
      border-radius:var(--radius-pill);
      padding:8px 15px;
      font-size:14px;
      font-weight:800;
      overflow:hidden;
    }
    .nav-main .nav-link::after{
      content:"";
      position:absolute;
      left:16px;
      right:16px;
      bottom:5px;
      height:2px;
      border-radius:999px;
      background:linear-gradient(90deg,var(--color-primary),var(--color-accent));
      transform:scaleX(0);
      transform-origin:left;
      transition:transform var(--transition);
    }
    .nav-main .nav-link:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
      transform:translateY(-2px);
    }
    .nav-main .nav-link:hover::after,
    .nav-main .nav-link.active::after{transform:scaleX(1);}
    .nav-main .nav-link.active{
      color:#fff;
      background:rgba(124,58,237,.22);
    }
    .timeline-nav{
      display:flex;
      align-items:center;
      gap:0;
      padding:7px;
      border-radius:var(--radius-pill);
      background:rgba(32,25,39,.9);
      border:1px solid rgba(255,255,255,.1);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    }
    .timeline-chip{
      min-height:34px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      position:relative;
      padding:7px 13px;
      border-radius:var(--radius-pill);
      color:rgba(248,245,255,.66);
      font-size:13px;
      font-weight:800;
    }
    .timeline-chip:not(:last-child)::after{
      content:"";
      width:14px;
      height:1px;
      position:absolute;
      right:-7px;
      top:50%;
      background:rgba(201,194,214,.24);
      z-index:0;
    }
    .timeline-chip:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    .timeline-chip.active{
      color:#fff;
      border:1px solid rgba(255,107,74,.72);
      background:rgba(255,107,74,.12);
      box-shadow:0 0 0 5px rgba(255,107,74,.08);
    }
    .timeline-chip.active::before{
      content:"";
      width:7px;height:7px;
      border-radius:50%;
      background:var(--color-mint);
      margin-right:7px;
      box-shadow:0 0 0 4px rgba(55,217,158,.12);
    }

    .article-hero{
      position:relative;
      padding:58px 0 42px;
      color:#fff;
      overflow:hidden;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:-80px 0 auto;
      height:360px;
      background:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
      background-size:38px 38px;
      mask-image:linear-gradient(180deg,#000,transparent 82%);
      pointer-events:none;
    }
    .article-hero::after{
      content:"";
      position:absolute;
      right:8%;
      top:34px;
      width:260px;
      height:180px;
      border-radius:36px;
      border:1px solid rgba(255,255,255,.08);
      background:
        radial-gradient(circle at 28% 24%,rgba(255,107,74,.34),transparent 28%),
        radial-gradient(circle at 72% 68%,rgba(139,92,246,.38),transparent 34%),
        rgba(255,255,255,.03);
      transform:rotate(-7deg);
      box-shadow:var(--shadow-dark);
      opacity:.75;
      pointer-events:none;
    }
    .breadcrumb-wrap{
      position:relative;
      z-index:1;
      margin-bottom:26px;
    }
    .breadcrumb{
      margin:0;
      align-items:center;
      gap:7px;
      --bs-breadcrumb-divider:"/";
    }
    .breadcrumb-item,
    .breadcrumb-item a{
      color:rgba(248,245,255,.7);
      font-size:13px;
      font-weight:700;
    }
    .breadcrumb-item a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
    .breadcrumb-item.active{
      color:#fff;
      max-width:520px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .breadcrumb-item+.breadcrumb-item::before{color:rgba(248,245,255,.38);}
    .article-title-panel{
      position:relative;
      z-index:1;
      max-width:920px;
      padding:30px;
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg,rgba(255,255,255,.1),rgba(255,255,255,.045));
      border:1px solid rgba(255,255,255,.14);
      box-shadow:var(--shadow-dark);
      backdrop-filter:blur(14px);
    }
    .article-status{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:16px;
    }
    .status-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:var(--radius-pill);
      font-size:13px;
      font-weight:800;
      color:#fff;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.07);
    }
    .status-chip.primary{
      border-color:rgba(255,107,74,.48);
      background:rgba(255,107,74,.13);
    }
    .status-chip.primary::before{
      content:"";
      width:8px;height:8px;
      border-radius:50%;
      background:var(--color-mint);
      box-shadow:0 0 0 5px rgba(55,217,158,.12);
    }
    .article-title{
      margin:0;
      font-size:clamp(30px,5vw,46px);
      line-height:1.18;
      letter-spacing:-.045em;
      font-weight:900;
      color:#fff;
      max-width:850px;
    }
    .article-intro{
      margin:16px 0 0;
      max-width:790px;
      color:rgba(248,245,255,.76);
      font-size:17px;
      line-height:1.9;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .meta-badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:34px;
      padding:7px 12px;
      border-radius:var(--radius-pill);
      color:rgba(248,245,255,.82);
      background:rgba(17,16,22,.38);
      border:1px solid rgba(255,255,255,.12);
      font-size:13px;
      font-weight:700;
    }
    .meta-badge .dot{
      width:7px;height:7px;
      border-radius:50%;
      background:var(--color-accent);
    }

    .article-main{padding:44px 0 92px;}
    .content-shell{
      display:grid;
      grid-template-columns:minmax(0,1fr) 320px;
      gap:28px;
      align-items:start;
    }
    .article-card,
    .side-card,
    .empty-state,
    .support-card{
      border-radius:var(--radius-xl);
      background:rgba(255,250,245,.92);
      border:1px solid var(--color-border-dark);
      box-shadow:var(--shadow-card);
    }
    .article-card{
      padding:38px;
      overflow:hidden;
      position:relative;
    }
    .article-card::before{
      content:"";
      position:absolute;
      left:38px;
      right:38px;
      top:0;
      height:4px;
      border-radius:0 0 999px 999px;
      background:linear-gradient(90deg,var(--color-primary),var(--color-accent));
      opacity:.85;
    }
    .article-content{
      color:#332b3b;
      font-size:17px;
      line-height:1.88;
      word-break:break-word;
    }
    .article-content > *:first-child{margin-top:0;}
    .article-content p{margin:0 0 1.15em;}
    .article-content h2{
      margin:2.1em 0 .85em;
      padding-left:18px;
      position:relative;
      font-size:clamp(24px,3vw,31px);
      line-height:1.3;
      font-weight:900;
      letter-spacing:-.03em;
      color:var(--color-text-dark);
    }
    .article-content h2::before{
      content:"";
      position:absolute;
      left:0;
      top:.18em;
      width:6px;
      height:1.1em;
      border-radius:999px;
      background:linear-gradient(180deg,var(--color-primary),var(--color-accent));
      box-shadow:0 0 0 6px rgba(124,58,237,.08);
    }
    .article-content h3{
      margin:1.8em 0 .7em;
      color:#31273b;
      font-size:clamp(20px,2.2vw,24px);
      line-height:1.35;
      font-weight:850;
    }
    .article-content h4{
      margin:1.4em 0 .6em;
      font-size:19px;
      font-weight:850;
      color:#3c3247;
    }
    .article-content a{
      color:var(--color-primary);
      font-weight:800;
      background:linear-gradient(currentColor,currentColor) 0 100%/0 2px no-repeat;
    }
    .article-content a:hover{
      color:var(--color-accent);
      background-size:100% 2px;
    }
    .article-content strong{font-weight:900;color:#201927}
    .article-content em{color:#554a60;}
    .article-content ul,
    .article-content ol{
      margin:0 0 1.25em;
      padding-left:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .article-content li{
      position:relative;
      padding-left:28px;
      color:#3c3344;
    }
    .article-content ul li::before{
      content:"";
      position:absolute;
      left:3px;
      top:.76em;
      width:9px;
      height:9px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
      box-shadow:0 0 0 5px rgba(124,58,237,.08);
    }
    .article-content ol{counter-reset:item;}
    .article-content ol li{counter-increment:item;}
    .article-content ol li::before{
      content:counter(item);
      position:absolute;
      left:0;
      top:.18em;
      width:21px;
      height:21px;
      border-radius:8px;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:12px;
      font-weight:900;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
    }
    .article-content blockquote{
      margin:1.6em 0;
      padding:22px 24px 22px 28px;
      border-left:5px solid var(--color-accent);
      border-radius:0 var(--radius-lg) var(--radius-lg) 0;
      background:
        radial-gradient(circle at 100% 0%,rgba(124,58,237,.12),transparent 38%),
        rgba(124,58,237,.06);
      color:#3d3346;
      font-weight:650;
    }
    .article-content blockquote p:last-child{margin-bottom:0;}
    .article-content img{
      border-radius:20px;
      border:1px solid rgba(42,38,48,.14);
      box-shadow:0 18px 48px rgba(32,25,39,.12);
      margin:1.6em auto;
    }
    .article-content figure{margin:1.8em 0;}
    .article-content figcaption{
      margin-top:10px;
      text-align:center;
      color:var(--color-muted-dark);
      font-size:13px;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:1.6em 0;
      overflow:hidden;
      border:1px solid rgba(42,38,48,.12);
      border-radius:18px;
      background:#fff;
      box-shadow:0 12px 34px rgba(32,25,39,.06);
    }
    .article-content th,
    .article-content td{
      padding:14px 16px;
      border-bottom:1px solid rgba(42,38,48,.1);
      vertical-align:top;
    }
    .article-content th{
      color:#261d31;
      font-weight:900;
      background:rgba(124,58,237,.08);
    }
    .article-content tr:last-child td{border-bottom:0;}
    .article-content code{
      padding:.16em .42em;
      border-radius:8px;
      color:#6d2bd4;
      background:rgba(124,58,237,.09);
      font-size:.92em;
    }
    .article-content pre{
      margin:1.5em 0;
      padding:18px;
      overflow:auto;
      border-radius:20px;
      color:#f8f5ff;
      background:#17121f;
      border:1px solid rgba(255,255,255,.08);
    }
    .article-content .tip,
    .article-content .notice,
    .article-content .update{
      position:relative;
      margin:1.6em 0;
      padding:20px 22px;
      border-radius:22px;
      border:1px solid rgba(124,58,237,.16);
      background:#fff;
      box-shadow:0 14px 38px rgba(32,25,39,.08);
    }
    .article-content .tip::before,
    .article-content .notice::before,
    .article-content .update::before{
      display:inline-flex;
      content:"提示";
      margin-bottom:9px;
      padding:5px 10px;
      border-radius:999px;
      color:#fff;
      font-size:12px;
      font-weight:900;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
    }
    .article-content .notice::before{content:"注意";}
    .article-content .update::before{content:"更新";background:linear-gradient(135deg,var(--color-mint),var(--color-primary));}

    .article-aside{
      position:sticky;
      top:104px;
      display:grid;
      gap:18px;
    }
    .side-card,
    .support-card{
      padding:22px;
    }
    .side-title{
      margin:0 0 12px;
      color:var(--color-text-dark);
      font-size:18px;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .side-desc{
      margin:0;
      color:var(--color-muted-dark);
      font-size:14px;
      line-height:1.75;
    }
    .quick-actions{
      display:grid;
      gap:10px;
      margin-top:16px;
    }
    .quick-link{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      min-height:48px;
      padding:12px 14px;
      border-radius:18px;
      color:#2c2334;
      background:rgba(124,58,237,.06);
      border:1px solid rgba(124,58,237,.11);
      font-weight:850;
      font-size:14px;
    }
    .quick-link span:last-child{
      color:var(--color-accent);
      transition:transform var(--transition);
    }
    .quick-link:hover{
      transform:translateY(-2px);
      background:rgba(255,107,74,.08);
      border-color:rgba(255,107,74,.18);
      box-shadow:0 12px 28px rgba(32,25,39,.08);
    }
    .quick-link:hover span:last-child{transform:translateX(4px);}
    .related-list{
      display:grid;
      gap:12px;
      margin-top:14px;
    }
    .related-item{
      display:block;
      padding:14px;
      border-radius:18px;
      border:1px solid rgba(42,38,48,.1);
      background:#fff;
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .related-item:hover{
      transform:translateY(-3px);
      border-color:rgba(124,58,237,.24);
      box-shadow:0 14px 34px rgba(32,25,39,.1);
    }
    .related-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:8px;
      color:var(--color-muted-dark);
      font-size:12px;
      font-weight:800;
    }
    .related-title{
      margin:0;
      color:#261d31;
      font-size:14px;
      line-height:1.55;
      font-weight:900;
    }
    .mini-badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:5px 9px;
      border-radius:999px;
      background:rgba(42,38,48,.06);
      color:#5f536b;
      font-size:12px;
      font-weight:850;
    }
    .mini-badge::before{
      content:"";
      width:6px;height:6px;
      border-radius:50%;
      background:var(--color-mint);
    }
    .support-card{
      color:#fff;
      background:
        radial-gradient(circle at 15% 10%,rgba(255,107,74,.26),transparent 34%),
        linear-gradient(145deg,#201927,#17121f);
      border-color:rgba(255,255,255,.1);
      box-shadow:var(--shadow-dark);
    }
    .support-card .side-title{color:#fff;}
    .support-card .side-desc{color:rgba(248,245,255,.72);}
    .support-steps{
      margin:16px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .support-steps li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:rgba(248,245,255,.82);
      font-size:14px;
    }
    .support-steps b{
      flex:0 0 auto;
      width:24px;height:24px;
      border-radius:9px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
      font-size:12px;
    }
    .empty-state{
      padding:42px 32px;
      text-align:center;
    }
    .empty-icon{
      width:72px;
      height:72px;
      margin:0 auto 16px;
      border-radius:24px;
      background:
        radial-gradient(circle at 68% 24%,rgba(255,255,255,.72),transparent 18%),
        linear-gradient(135deg,var(--color-primary),var(--color-accent));
      display:grid;
      place-items:center;
      box-shadow:0 18px 40px rgba(124,58,237,.24);
    }
    .empty-icon::before{
      content:"";
      width:0;
      height:0;
      border-top:11px solid transparent;
      border-bottom:11px solid transparent;
      border-left:17px solid #fff;
      margin-left:4px;
    }
    .empty-state h2{
      margin:0 0 10px;
      font-size:28px;
      font-weight:900;
      letter-spacing:-.03em;
      color:var(--color-text-dark);
    }
    .empty-state p{
      margin:0 auto 22px;
      max-width:560px;
      color:var(--color-muted-dark);
    }
    .article-after{
      margin-top:26px;
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
    }
    .info-panel{
      padding:24px;
      border-radius:var(--radius-xl);
      background:#fffaf5;
      border:1px solid rgba(42,38,48,.12);
      box-shadow:0 14px 40px rgba(32,25,39,.08);
    }
    .info-panel h2{
      margin:0 0 10px;
      font-size:21px;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .info-panel p{
      margin:0;
      color:var(--color-muted-dark);
      font-size:15px;
    }
    .info-panel .link-arrow{margin-top:16px;}
    .link-arrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary);
      font-weight:900;
      background:linear-gradient(currentColor,currentColor) 0 100%/0 2px no-repeat;
    }
    .link-arrow::after{
      content:"→";
      transition:transform var(--transition);
    }
    .link-arrow:hover{
      color:var(--color-accent);
      background-size:100% 2px;
    }
    .link-arrow:hover::after{transform:translateX(4px);}

    .site-footer{
      position:relative;
      padding:64px 0 34px;
      color:#fff;
      background:
        radial-gradient(circle at 12% 20%,rgba(124,58,237,.28),transparent 30%),
        radial-gradient(circle at 86% 12%,rgba(255,107,74,.16),transparent 24%),
        #111016;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:34px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-size:20px;
      font-weight:900;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .footer-desc{
      max-width:620px;
      margin:0;
      color:rgba(248,245,255,.68);
      font-size:15px;
      line-height:1.85;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
      max-width:430px;
    }
    .footer-links a{
      padding:9px 13px;
      border-radius:999px;
      color:rgba(248,245,255,.72);
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.04);
      font-size:14px;
      font-weight:800;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateY(-2px);
      border-color:rgba(255,107,74,.32);
      background:rgba(255,107,74,.08);
    }
    .copyright{
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      color:rgba(248,245,255,.52);
      font-size:13px;
    }

    .bottom-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      z-index:1030;
      width:min(100% - 32px,860px);
      transform:translateX(-50%);
      padding:10px;
      border-radius:999px;
      background:rgba(17,16,22,.86);
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 22px 70px rgba(0,0,0,.32);
      backdrop-filter:blur(18px);
    }
    .bottom-cta-inner{
      display:flex;
      align-items:center;
      gap:12px;
      justify-content:space-between;
    }
    .bottom-message{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:0;
      color:#fff;
      font-size:14px;
      font-weight:850;
      padding-left:12px;
    }
    .bottom-message::before{
      content:"";
      flex:0 0 auto;
      width:10px;height:10px;
      border-radius:50%;
      background:var(--color-mint);
      box-shadow:0 0 0 6px rgba(55,217,158,.13);
    }
    .bottom-status{
      display:inline-flex;
      align-items:center;
      padding:7px 12px;
      border-radius:999px;
      color:#fff;
      background:rgba(124,58,237,.22);
      border:1px solid rgba(139,92,246,.3);
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .bottom-cta .btn{
      min-height:42px;
      padding:10px 18px;
      white-space:nowrap;
    }
    .bottom-close{
      width:34px;
      height:34px;
      border:0;
      border-radius:50%;
      color:rgba(248,245,255,.7);
      background:rgba(255,255,255,.07);
      display:grid;
      place-items:center;
      transition:background var(--transition),color var(--transition),transform var(--transition);
    }
    .bottom-close:hover{color:#fff;background:rgba(255,255,255,.13);transform:rotate(90deg);}

    @media (max-width:991.98px){
      :root{--space-section:82px;}
      .navbar-collapse{
        margin-top:14px;
        padding:16px;
        border-radius:24px;
        background:rgba(17,16,22,.96);
        border:1px solid rgba(255,255,255,.1);
        box-shadow:var(--shadow-dark);
      }
      .nav-main{
        align-items:stretch;
        border-radius:20px;
        background:rgba(255,255,255,.04);
      }
      .nav-main .nav-link{
        min-height:44px;
        display:flex;
        align-items:center;
        padding:10px 14px;
      }
      .timeline-nav{
        margin-top:12px;
        width:100%;
        justify-content:space-between;
        border-radius:20px;
      }
      .timeline-chip{flex:1;min-height:44px;}
      .content-shell{grid-template-columns:1fr;}
      .article-aside{
        position:static;
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .support-card{grid-column:1/-1;}
      .article-after{grid-template-columns:1fr;}
      .article-hero::after{opacity:.35;right:-80px;}
    }
    @media (max-width:767.98px){
      :root{--space-section:64px;--bottom-cta-height:116px;}
      body{
        background:
          radial-gradient(circle at 12% 0%,rgba(255,107,74,.18),transparent 30%),
          radial-gradient(circle at 88% 8%,rgba(124,58,237,.2),transparent 32%),
          linear-gradient(180deg,#15111c 0%,#211a27 420px,#f6f2ee 420px,#f6f2ee 100%);
      }
      .site-header{padding:10px 0;}
      .navbar-brand{font-size:17px;max-width:72vw;}
      .brand-mark{width:38px;height:38px;border-radius:14px;}
      .article-hero{padding:36px 0 30px;}
      .article-title-panel{padding:22px;border-radius:26px;}
      .article-title{font-size:clamp(28px,9vw,34px);}
      .article-intro{font-size:15px;line-height:1.8;}
      .article-main{padding:30px 0 70px;}
      .article-card{padding:28px 20px;border-radius:26px;}
      .article-card::before{left:20px;right:20px;}
      .article-content{font-size:16px;line-height:1.86;}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap;}
      .article-aside{grid-template-columns:1fr;}
      .footer-grid{grid-template-columns:1fr;}
      .footer-links{justify-content:flex-start;}
      .bottom-cta{
        bottom:0;
        width:100%;
        border-radius:22px 22px 0 0;
        border-left:0;
        border-right:0;
        border-bottom:0;
        padding:10px 12px calc(10px + env(safe-area-inset-bottom));
      }
      .bottom-cta-inner{
        display:grid;
        grid-template-columns:1fr 1fr auto;
        gap:8px;
      }
      .bottom-message{
        grid-column:1/-1;
        padding-left:4px;
        font-size:13px;
      }
      .bottom-status{display:none;}
      .bottom-cta .btn{width:100%;min-height:46px;padding:10px 12px;}
      .bottom-close{width:46px;height:46px;}
    }
    @media (max-width:520px){
      .site-container{width:min(100% - 24px,var(--container-max));}
      .breadcrumb-item.active{max-width:220px;}
      .article-title-panel{padding:20px 18px;}
      .article-meta{gap:8px;}
      .meta-badge,.status-chip{font-size:12px;}
      .empty-state{padding:34px 20px;}
      .info-panel,.side-card,.support-card{padding:20px;}
      .footer-links a{width:calc(50% - 5px);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}