/* roulang page: index */
:root{
      --bg:#0d0c10;
      --bg-2:#111014;
      --panel:#1b1820;
      --panel-2:#211e27;
      --panel-3:#17151b;
      --text:#f5f0ea;
      --muted:#b8b0a8;
      --weak:#807872;
      --red:#b83a4b;
      --red-2:#d34a5f;
      --amber:#e6a84a;
      --amber-2:#f0c16a;
      --border:rgba(255,255,255,.08);
      --line:rgba(255,255,255,.06);
      --shadow:0 24px 70px rgba(0,0,0,.42);
      --shadow-soft:0 16px 42px rgba(0,0,0,.28);
      --radius:22px;
      --radius-sm:14px;
      --container:1200px;
      --header:76px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      background:
        radial-gradient(circle at 14% 8%, rgba(184,58,75,.2), transparent 34%),
        radial-gradient(circle at 86% 16%, rgba(230,168,74,.12), transparent 32%),
        linear-gradient(180deg,var(--bg),#121016 45%,#0d0c10);
      color:var(--text);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.18;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom, #000, transparent 72%);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(211,74,95,.45);color:#fff}
    .container{width:min(100% - 40px,var(--container));margin-inline:auto}
    .skip-link{
      position:absolute;left:20px;top:-60px;z-index:999;
      background:var(--amber);color:#1a1212;padding:10px 14px;border-radius:12px;
      transition:var(--ease);font-weight:700
    }
    .skip-link:focus{top:16px}
    .site-header{
      position:sticky;top:0;z-index:100;
      background:rgba(13,12,16,.78);
      backdrop-filter:blur(16px);
      border-bottom:1px solid var(--border);
      transition:var(--ease);
    }
    .nav-wrap{
      height:var(--header);
      display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:max-content;
      font-weight:800;letter-spacing:.2px
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(145deg,var(--red),#5c1823);
      position:relative;box-shadow:0 12px 30px rgba(184,58,75,.28);
      border:1px solid rgba(255,255,255,.14);
    }
    .brand-mark::before{
      content:"";position:absolute;inset:10px 12px;
      clip-path:polygon(0 0,100% 50%,0 100%);
      background:var(--amber-2);
    }
    .brand-mark::after{
      content:"";position:absolute;left:5px;right:5px;bottom:5px;height:4px;
      background:repeating-linear-gradient(90deg,rgba(255,255,255,.55) 0 4px,transparent 4px 8px);
      border-radius:20px;opacity:.7;
    }
    .brand-text{font-size:18px;color:var(--text);white-space:nowrap}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{
      color:var(--muted);font-size:15px;font-weight:650;
      padding:10px 13px;border-radius:999px;position:relative;transition:var(--ease)
    }
    .nav-links a:hover,.nav-links a.active{color:var(--amber-2);background:rgba(255,255,255,.045)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:44px;padding:11px 20px;border-radius:999px;
      font-weight:750;font-size:15px;transition:var(--ease);
      border:1px solid transparent;white-space:nowrap
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--red),#8e2433);
      color:#fff7f3;box-shadow:0 14px 34px rgba(184,58,75,.22)
    }
    .btn-primary:hover{background:linear-gradient(135deg,var(--red-2),var(--red));transform:translateY(-2px);box-shadow:0 18px 44px rgba(184,58,75,.34)}
    .btn-secondary{
      background:rgba(255,255,255,.045);color:var(--text);border-color:var(--border)
    }
    .btn-secondary:hover{border-color:rgba(230,168,74,.62);color:var(--amber-2);transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,.faq-question:focus-visible{
      outline:3px solid rgba(230,168,74,.32);outline-offset:3px
    }
    .menu-btn{
      display:none;width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text)
    }
    .menu-btn span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;border-radius:99px}

    main{overflow:hidden}
    .hero{
      position:relative;
      min-height:calc(100vh - var(--header));
      padding:82px 0 60px;
      display:grid;align-items:center;
    }
    .hero::before{
      content:"";position:absolute;inset:0;z-index:-2;
      background:
        linear-gradient(90deg,rgba(13,12,16,.86),rgba(13,12,16,.55),rgba(13,12,16,.9)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.82;
    }
    .hero::after{
      content:"";position:absolute;left:-8%;right:-8%;bottom:-2px;height:170px;z-index:-1;
      background:linear-gradient(to top,var(--bg),transparent);
    }
    .hero-grid{
      display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:9px;
      padding:8px 12px;border:1px solid rgba(230,168,74,.28);
      border-radius:999px;background:rgba(230,168,74,.08);
      color:var(--amber-2);font-size:14px;font-weight:750;margin-bottom:20px
    }
    .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 6px rgba(230,168,74,.12)}
    h1{
      font-size:clamp(34px,5vw,58px);
      line-height:1.16;font-weight:850;letter-spacing:-.8px;
      max-width:820px;
    }
    .hero-subtitle{
      margin-top:22px;color:var(--muted);font-size:18px;line-height:1.9;
      max-width:720px
    }
    .hero-tools{
      margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;align-items:center
    }
    .search-box{
      margin-top:28px;max-width:650px;
      display:flex;align-items:center;gap:12px;
      padding:8px;background:rgba(17,16,20,.72);
      border:1px solid rgba(255,255,255,.11);
      border-radius:999px;box-shadow:var(--shadow-soft)
    }
    .search-icon{
      width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
      background:rgba(230,168,74,.1);color:var(--amber-2);flex:0 0 auto
    }
    .search-box input{
      flex:1;min-width:0;background:transparent;border:0;color:var(--text);
      padding:0 4px;font-size:15px;outline:0
    }
    .search-box input::placeholder{color:var(--weak)}
    .search-box:focus-within{border-color:rgba(230,168,74,.5);box-shadow:0 0 0 5px rgba(230,168,74,.08),var(--shadow-soft)}
    .hero-note{
      margin-top:16px;color:var(--weak);font-size:14px
    }
    .cinema-board{
      position:relative;padding:18px;border-radius:30px;
      background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .cinema-board::before{
      content:"";position:absolute;inset:0;pointer-events:none;
      background:radial-gradient(circle at 50% 0,rgba(230,168,74,.22),transparent 38%);
    }
    .board-top{
      display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;
      position:relative
    }
    .board-title{font-weight:800;font-size:18px}
    .board-time{font-size:13px;color:var(--amber-2)}
    .preview-stack{display:grid;gap:14px;position:relative}
    .preview-card{
      min-height:126px;border-radius:22px;padding:18px;overflow:hidden;position:relative;
      background:linear-gradient(90deg,rgba(13,12,16,.88),rgba(13,12,16,.58)),var(--panel);
      border:1px solid rgba(255,255,255,.1);
      transition:var(--ease)
    }
    .preview-card:hover{transform:translateX(4px);border-color:rgba(184,58,75,.55)}
    .preview-card:nth-child(1){background-image:linear-gradient(90deg,rgba(13,12,16,.9),rgba(13,12,16,.55)),url('/assets/images/coverpic/cover-1.webp');background-size:cover;background-position:center}
    .preview-card:nth-child(2){background-image:linear-gradient(90deg,rgba(13,12,16,.9),rgba(13,12,16,.55)),url('/assets/images/coverpic/cover-2.webp');background-size:cover;background-position:center}
    .preview-card:nth-child(3){background-image:linear-gradient(90deg,rgba(13,12,16,.9),rgba(13,12,16,.55)),url('/assets/images/coverpic/cover-3.webp');background-size:cover;background-position:center}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800;
      background:rgba(184,58,75,.18);color:#ffb5bf;border:1px solid rgba(184,58,75,.25)
    }
    .badge.amber{background:rgba(230,168,74,.13);color:var(--amber-2);border-color:rgba(230,168,74,.22)}
    .preview-card h3{font-size:20px;line-height:1.35;margin-top:12px}
    .preview-card p{font-size:14px;color:var(--muted);margin-top:6px;max-width:420px}
    .section{padding:84px 0}
    .section.tight{padding-top:42px}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px
    }
    .section-kicker{color:var(--amber-2);font-weight:800;font-size:14px;margin-bottom:7px}
    h2{font-size:clamp(26px,3vw,38px);line-height:1.25;font-weight:850;letter-spacing:-.4px}
    .section-desc{color:var(--muted);max-width:660px;margin-top:10px;font-size:16px}
    .trust-strip{
      margin-top:-30px;position:relative;z-index:4;
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px
    }
    .trust-item{
      background:rgba(27,24,32,.88);border:1px solid var(--border);
      border-radius:20px;padding:18px;display:flex;gap:13px;align-items:flex-start;
      box-shadow:var(--shadow-soft);backdrop-filter:blur(12px)
    }
    .trust-icon{
      width:40px;height:40px;border-radius:14px;display:grid;place-items:center;
      color:var(--amber-2);background:rgba(230,168,74,.1);flex:0 0 auto
    }
    .trust-item strong{display:block;font-size:16px;margin-bottom:2px}
    .trust-item span{display:block;color:var(--muted);font-size:13px;line-height:1.55}
    .guide-layout{
      display:grid;grid-template-columns:1.15fr .85fr;gap:22px
    }
    .feature-card,.mini-card,.side-card,.news-card,.step-card,.stat-card,.faq-item{
      background:linear-gradient(180deg,var(--panel-2),var(--panel));
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      transition:var(--ease)
    }
    .feature-card{
      min-height:480px;padding:30px;position:relative;overflow:hidden;
      display:flex;flex-direction:column;justify-content:space-between
    }
    .feature-card::before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(180deg,rgba(13,12,16,.1),rgba(13,12,16,.82)),
        url('/assets/images/coverpic/cover-4.webp') center/cover no-repeat;
      opacity:.74
    }
    .feature-card>*{position:relative}
    .feature-card:hover,.mini-card:hover,.news-card:hover,.step-card:hover{
      transform:translateY(-4px);border-color:rgba(184,58,75,.55);box-shadow:0 26px 70px rgba(0,0,0,.38)
    }
    .feature-card h3{font-size:30px;line-height:1.25;margin:14px 0 12px}
    .feature-card p{color:var(--muted);max-width:590px}
    .card-link{
      display:inline-flex;align-items:center;gap:8px;color:var(--amber-2);
      font-weight:800;margin-top:22px;transition:var(--ease)
    }
    .card-link:hover{gap:13px;color:#ffd98d}
    .mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .mini-card{padding:24px;min-height:230px;display:flex;flex-direction:column;justify-content:space-between}
    .mini-card h3{font-size:21px;margin-top:12px}
    .mini-card p{color:var(--muted);font-size:15px;margin-top:8px}
    .news-layout{display:grid;grid-template-columns:2fr .85fr;gap:24px;align-items:start}
    .news-list{display:grid;gap:16px}
    .news-card{
      display:grid;grid-template-columns:210px 1fr;gap:20px;padding:16px;overflow:hidden
    }
    .news-thumb{
      position:relative;border-radius:18px;overflow:hidden;min-height:150px;
      background:var(--panel-3)
    }
    .news-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.9) brightness(.8)}
    .news-thumb::after{
      content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.12);
      border-radius:18px;box-shadow:inset 0 0 0 8px rgba(0,0,0,.18)
    }
    .news-body{padding:4px 4px 4px 0;display:flex;flex-direction:column;justify-content:space-between}
    .meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--weak);font-size:13px}
    .news-card h3{font-size:22px;line-height:1.35;margin:10px 0 8px;transition:var(--ease)}
    .news-card:hover h3{color:var(--amber-2)}
    .news-card p{color:var(--muted);font-size:15px;line-height:1.7}
    .read-more{margin-top:14px;color:var(--amber-2);font-weight:800;display:inline-flex;gap:8px;align-items:center}
    .news-card:hover .read-more span{transform:translateX(4px)}
    .read-more span{transition:var(--ease)}
    .side-card{padding:24px;margin-bottom:18px}
    .side-card h3{font-size:20px;margin-bottom:12px}
    .tag-cloud{display:flex;gap:10px;flex-wrap:wrap}
    .tag{
      display:inline-flex;padding:7px 11px;border-radius:999px;
      background:rgba(255,255,255,.055);border:1px solid var(--border);
      color:var(--muted);font-size:13px;font-weight:700
    }
    .side-list{list-style:none;display:grid;gap:11px;margin-top:14px}
    .side-list li{display:flex;gap:10px;color:var(--muted);font-size:14px}
    .side-list li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber);margin-top:10px;flex:0 0 auto}
    .empty-state{
      padding:34px;border:1px dashed rgba(230,168,74,.36);border-radius:var(--radius);
      background:rgba(230,168,74,.06);text-align:center;color:var(--muted)
    }
    .empty-state strong{display:block;color:var(--text);font-size:20px;margin-bottom:6px}
    .timeline{
      display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative
    }
    .step-card{padding:24px;position:relative;overflow:hidden}
    .step-no{font-size:36px;line-height:1;font-weight:900;color:rgba(230,168,74,.88);margin-bottom:18px}
    .step-card h3{font-size:20px;margin-bottom:8px}
    .step-card p{color:var(--muted);font-size:15px}
    .stats-band{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
      padding:16px;border-radius:28px;background:rgba(255,255,255,.035);
      border:1px solid var(--border)
    }
    .stat-card{padding:24px;text-align:center;box-shadow:none}
    .stat-card strong{display:block;font-size:28px;color:var(--amber-2);line-height:1.2}
    .stat-card span{display:block;color:var(--muted);font-size:14px;margin-top:8px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .faq-item{overflow:hidden}
    .faq-question{
      width:100%;background:transparent;color:var(--text);
      display:flex;justify-content:space-between;align-items:center;gap:18px;
      padding:22px;text-align:left;font-weight:800;font-size:17px
    }
    .faq-question .plus{
      width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
      background:rgba(230,168,74,.1);color:var(--amber-2);transition:var(--ease);flex:0 0 auto
    }
    .faq-answer{
      max-height:0;overflow:hidden;transition:max-height .24s ease;
      color:var(--muted);font-size:15px;line-height:1.85
    }
    .faq-answer p{padding:0 22px 22px;border-left:3px solid var(--red);margin-left:22px}
    .faq-item.active{background:linear-gradient(180deg,#24202a,var(--panel))}
    .faq-item.active .plus{transform:rotate(45deg);background:rgba(184,58,75,.2);color:#ffd2d8}
    .cta-panel{
      position:relative;overflow:hidden;border-radius:32px;padding:44px;
      background:
        linear-gradient(90deg,rgba(17,16,20,.94),rgba(17,16,20,.72)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow);
      display:grid;grid-template-columns:1.3fr .7fr;gap:24px;align-items:center
    }
    .cta-panel::before,.cta-panel::after{
      content:"";position:absolute;top:18px;bottom:18px;width:10px;
      background:repeating-linear-gradient(180deg,rgba(255,255,255,.26) 0 9px,transparent 9px 18px);
      border-radius:999px;opacity:.42
    }
    .cta-panel::before{left:18px}.cta-panel::after{right:18px}
    .cta-panel h2{position:relative}
    .cta-panel p{position:relative;color:var(--muted);margin-top:12px;max-width:700px}
    .cta-actions{position:relative;display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
    .site-footer{
      background:#0a090c;border-top:1px solid var(--border);padding:58px 0 24px
    }
    .footer-grid{
      display:grid;grid-template-columns:1.2fr .75fr .8fr 1.1fr;gap:34px
    }
    .footer-title{font-weight:850;font-size:18px;margin-bottom:12px}
    .footer-text{color:var(--muted);font-size:14px;line-height:1.8}
    .footer-links{list-style:none;display:grid;gap:9px}
    .footer-links a{color:var(--muted);font-size:14px;transition:var(--ease)}
    .footer-links a:hover{color:var(--amber-2);padding-left:4px}
    .disclaimer{
      color:var(--muted);font-size:13px;line-height:1.75;
      padding:14px;border-radius:16px;background:rgba(255,255,255,.035);border:1px solid var(--border)
    }
    .copyright{
      margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
      color:var(--weak);font-size:13px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap
    }

    @media (max-width:1024px){
      .hero{padding:64px 0 54px;min-height:auto}
      .hero-grid,.guide-layout,.news-layout,.cta-panel{grid-template-columns:1fr}
      .cinema-board{max-width:760px}
      .trust-strip,.timeline,.stats-band{grid-template-columns:repeat(2,1fr)}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
      .nav-actions .btn-secondary{display:none}
    }
    @media (max-width:820px){
      :root{--header:68px}
      .menu-btn{display:block}
      .nav-links{
        position:absolute;left:20px;right:20px;top:calc(var(--header) + 10px);
        display:none;flex-direction:column;align-items:stretch;gap:6px;
        background:rgba(17,16,20,.96);border:1px solid var(--border);
        border-radius:22px;padding:12px;box-shadow:var(--shadow);backdrop-filter:blur(16px)
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:13px 14px}
      .nav-actions .btn-primary{display:none}
      .section{padding:62px 0}
      .section-head{display:block}
      .mini-grid,.faq-grid{grid-template-columns:1fr}
      .news-card{grid-template-columns:1fr}
      .news-thumb{min-height:190px}
    }
    @media (max-width:560px){
      .container{width:min(100% - 28px,var(--container))}
      .brand-text{font-size:16px}
      .brand-mark{width:38px;height:38px}
      .hero{padding:44px 0 48px}
      h1{letter-spacing:-.4px}
      .hero-subtitle{font-size:16px}
      .hero-tools,.cta-actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .search-box{border-radius:22px;align-items:stretch;flex-wrap:wrap;padding:10px}
      .search-icon{display:none}
      .search-box input{min-height:42px;padding:0 10px}
      .search-box .btn{min-height:42px}
      .cinema-board{padding:12px;border-radius:24px}
      .preview-card{min-height:138px}
      .trust-strip,.timeline,.stats-band,.footer-grid{grid-template-columns:1fr}
      .feature-card{min-height:420px;padding:24px}
      .feature-card h3{font-size:25px}
      .mini-card,.side-card,.step-card,.stat-card{padding:20px}
      .cta-panel{padding:34px 24px}
      .cta-panel::before,.cta-panel::after{display:none}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --bg:#0d0c10;
      --bg-2:#111014;
      --panel:#1b1820;
      --panel-2:#211e27;
      --panel-3:#17151b;
      --text:#f5f0ea;
      --muted:#b8b0a8;
      --weak:#807872;
      --red:#b83a4b;
      --red-2:#d34a5f;
      --amber:#e6a84a;
      --amber-2:#f0c16a;
      --border:rgba(255,255,255,.08);
      --line:rgba(255,255,255,.06);
      --shadow:0 24px 70px rgba(0,0,0,.42);
      --shadow-soft:0 16px 42px rgba(0,0,0,.28);
      --radius:22px;
      --radius-sm:14px;
      --container:1200px;
      --header:76px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      background:
        radial-gradient(circle at 12% 4%, rgba(184,58,75,.18), transparent 32%),
        radial-gradient(circle at 88% 12%, rgba(230,168,74,.11), transparent 30%),
        linear-gradient(180deg,var(--bg),#121016 48%,#0d0c10);
      color:var(--text);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.16;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom, #000, transparent 72%);
    }
    a{color:inherit;text-decoration:none}
    a:hover{color:inherit}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(100% - 40px,var(--container));margin-inline:auto}
    .site-header{
      position:sticky;top:0;z-index:100;
      background:rgba(13,12,16,.78);
      backdrop-filter:blur(16px);
      border-bottom:1px solid var(--border);
      transition:var(--ease);
    }
    .site-header.is-scrolled{background:rgba(13,12,16,.94);box-shadow:0 14px 38px rgba(0,0,0,.28)}
    .nav-wrap{
      height:var(--header);
      display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:max-content;
      font-weight:800;letter-spacing:.2px
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(145deg,var(--red),#5c1823);
      position:relative;box-shadow:0 12px 30px rgba(184,58,75,.28);
      border:1px solid rgba(255,255,255,.14);
      flex:0 0 auto;
    }
    .brand-mark::before{
      content:"";position:absolute;inset:10px 12px;
      clip-path:polygon(0 0,100% 50%,0 100%);
      background:var(--amber-2);
    }
    .brand-mark::after{
      content:"";position:absolute;left:5px;right:5px;bottom:5px;height:4px;
      background:repeating-linear-gradient(90deg,rgba(255,255,255,.55) 0 4px,transparent 4px 8px);
      border-radius:20px;opacity:.7;
    }
    .brand-text{font-size:18px;color:var(--text);white-space:nowrap}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{
      color:var(--muted);font-size:15px;font-weight:650;
      padding:10px 13px;border-radius:999px;position:relative;transition:var(--ease)
    }
    .nav-links a:hover,.nav-links a.active{color:var(--amber-2);background:rgba(255,255,255,.045)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:44px;padding:11px 20px;border-radius:999px;
      font-weight:750;font-size:15px;transition:var(--ease);
      border:1px solid transparent;white-space:nowrap
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--red),#8e2433);
      color:#fff7f3;box-shadow:0 14px 34px rgba(184,58,75,.22)
    }
    .btn-primary:hover{background:linear-gradient(135deg,var(--red-2),var(--red));transform:translateY(-2px);box-shadow:0 18px 44px rgba(184,58,75,.34);color:#fff}
    .btn-secondary{
      background:rgba(255,255,255,.045);color:var(--text);border-color:var(--border)
    }
    .btn-secondary:hover{border-color:rgba(230,168,74,.62);color:var(--amber-2);transform:translateY(-2px)}
    .btn:focus-visible,.nav-links a:focus-visible,input:focus-visible,.faq-question:focus-visible,.menu-btn:focus-visible{
      outline:3px solid rgba(230,168,74,.32);outline-offset:3px
    }
    .menu-btn{
      display:none;width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text)
    }
    .menu-btn span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;border-radius:99px;transition:var(--ease)}
    main{overflow:hidden}
    .page-hero{
      position:relative;
      padding:56px 0 30px;
      border-bottom:1px solid var(--line);
      overflow:hidden;
    }
    .page-hero::before{
      content:"";
      position:absolute;
      inset:0;
      z-index:-2;
      background:
        linear-gradient(90deg,rgba(13,12,16,.92),rgba(13,12,16,.72),rgba(13,12,16,.94)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      opacity:.82;
    }
    .page-hero::after{
      content:"";
      position:absolute;
      left:-10%;right:-10%;bottom:-1px;height:130px;
      background:linear-gradient(to top,var(--bg),transparent);
      z-index:-1;
    }
    .breadcrumb-line{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;
      color:var(--weak);font-size:14px;margin-bottom:24px;
    }
    .breadcrumb-line a{
      color:var(--muted);transition:var(--ease);
      border-bottom:1px solid transparent;
    }
    .breadcrumb-line a:hover{color:var(--amber-2);border-color:rgba(230,168,74,.35)}
    .breadcrumb-line .sep{color:rgba(255,255,255,.22)}
    .breadcrumb-line .current{color:var(--amber-2)}
    .article-kicker{
      display:inline-flex;align-items:center;gap:9px;
      padding:8px 12px;border-radius:999px;
      background:rgba(184,58,75,.14);
      border:1px solid rgba(184,58,75,.28);
      color:#ffd0d6;font-size:14px;font-weight:750;margin-bottom:18px;
    }
    .article-kicker::before{
      content:"";width:8px;height:8px;border-radius:50%;background:var(--red-2);
      box-shadow:0 0 0 6px rgba(184,58,75,.12);
    }
    .article-title{
      max-width:960px;
      font-size:clamp(30px,4.6vw,52px);
      line-height:1.18;
      font-weight:820;
      letter-spacing:-.8px;
      margin:0;
      color:var(--text);
    }
    .article-desc{
      max-width:860px;
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
      margin:20px 0 0;
    }
    .meta-strip{
      margin-top:26px;
      display:flex;flex-wrap:wrap;gap:12px;
    }
    .meta-pill{
      display:inline-flex;align-items:center;gap:8px;
      padding:9px 13px;border-radius:999px;
      background:rgba(255,255,255,.045);
      border:1px solid var(--border);
      color:var(--muted);
      font-size:14px;
    }
    .meta-pill strong{color:var(--amber-2);font-weight:750}
    .article-shell{
      padding:54px 0 78px;
    }
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) minmax(280px,1fr);
      gap:34px;
      align-items:start;
    }
    .article-main{
      min-width:0;
    }
    .cover-card{
      position:relative;
      border-radius:24px;
      overflow:hidden;
      min-height:320px;
      background:var(--panel);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      margin-bottom:26px;
    }
    .cover-card img{
      width:100%;
      height:100%;
      min-height:320px;
      object-fit:cover;
      filter:saturate(.88) contrast(1.06);
    }
    .cover-card::after{
      content:"";
      position:absolute;inset:0;
      background:
        radial-gradient(circle at 28% 18%, rgba(230,168,74,.18), transparent 28%),
        linear-gradient(180deg,rgba(13,12,16,.05),rgba(13,12,16,.72));
    }
    .cover-caption{
      position:absolute;left:22px;right:22px;bottom:18px;z-index:2;
      display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
      color:rgba(245,240,234,.88);
      font-size:14px;
    }
    .content-card{
      background:linear-gradient(180deg,rgba(33,30,39,.94),rgba(27,24,32,.94));
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      padding:36px;
    }
    .article-content{
      color:#eee8df;
      font-size:17px;
      line-height:1.9;
      word-break:break-word;
    }
    .article-content p{margin:0 0 20px}
    .article-content h2{
      font-size:30px;
      line-height:1.28;
      margin:42px 0 18px;
      color:var(--text);
      font-weight:800;
      padding-top:4px;
    }
    .article-content h3{
      font-size:22px;
      line-height:1.4;
      margin:30px 0 14px;
      color:#fff4e6;
      font-weight:760;
    }
    .article-content h4{
      font-size:19px;
      margin:24px 0 10px;
      color:var(--amber-2);
      font-weight:750;
    }
    .article-content a{
      color:var(--amber-2);
      border-bottom:1px solid rgba(230,168,74,.35);
      transition:var(--ease);
    }
    .article-content a:hover{color:#ffe0a2;border-color:rgba(240,193,106,.68)}
    .article-content blockquote{
      margin:28px 0;
      padding:20px 22px;
      border-left:4px solid var(--red-2);
      background:rgba(184,58,75,.1);
      border-radius:0 18px 18px 0;
      color:#eaded5;
    }
    .article-content ul,.article-content ol{
      margin:18px 0 22px;
      padding-left:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .article-content li{
      position:relative;
      padding-left:28px;
      color:#eee6dd;
    }
    .article-content ul li::before{
      content:"";
      position:absolute;left:4px;top:.82em;
      width:8px;height:8px;border-radius:50%;
      background:var(--amber);
      box-shadow:0 0 0 5px rgba(230,168,74,.1);
    }
    .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:.22em;
      width:20px;height:20px;border-radius:50%;
      display:grid;place-items:center;
      font-size:12px;font-weight:800;
      color:#211306;background:var(--amber);
    }
    .article-content img{
      width:100%;
      border-radius:18px;
      border:1px solid var(--border);
      margin:28px 0 10px;
      box-shadow:var(--shadow-soft);
    }
    .article-content figure{margin:28px 0}
    .article-content figcaption{
      color:var(--weak);
      font-size:14px;
      text-align:center;
      margin-top:10px;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      min-width:640px;
      overflow:hidden;
    }
    .article-content .table-wrap{
      overflow-x:auto;
      border:1px solid var(--border);
      border-radius:16px;
      margin:26px 0;
    }
    .article-content th,.article-content td{
      padding:14px 16px;
      border-bottom:1px solid var(--line);
      color:var(--muted);
    }
    .article-content th{
      background:rgba(230,168,74,.1);
      color:var(--amber-2);
      font-weight:750;
    }
    .empty-state{
      text-align:center;
      padding:54px 20px;
      border:1px dashed rgba(230,168,74,.35);
      border-radius:20px;
      background:rgba(230,168,74,.06);
    }
    .empty-icon{
      width:62px;height:62px;border-radius:22px;
      margin:0 auto 18px;
      display:grid;place-items:center;
      background:rgba(184,58,75,.16);
      color:var(--amber-2);
      font-size:28px;
    }
    .empty-state h2{
      margin:0 0 10px;
      color:var(--text);
      font-size:26px;
      font-weight:800;
    }
    .empty-state p{
      margin:0 auto 24px;
      max-width:520px;
      color:var(--muted);
    }
    .sidebar{
      position:sticky;
      top:calc(var(--header) + 22px);
      display:grid;
      gap:18px;
    }
    .side-card{
      background:linear-gradient(180deg,rgba(33,30,39,.9),rgba(27,24,32,.9));
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      padding:22px;
    }
    .side-title{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      margin-bottom:16px;
      color:var(--text);
      font-size:18px;
      font-weight:800;
    }
    .side-title::after{
      content:"";
      width:34px;height:3px;border-radius:99px;
      background:linear-gradient(90deg,var(--red),var(--amber));
      opacity:.9;
    }
    .toc-list,.quick-list,.footer-links{
      list-style:none;
      padding:0;
      margin:0;
    }
    .toc-list{display:grid;gap:10px}
    .toc-list a{
      display:flex;align-items:flex-start;gap:10px;
      padding:10px 11px;
      border-radius:14px;
      color:var(--muted);
      background:rgba(255,255,255,.03);
      border:1px solid transparent;
      transition:var(--ease);
      font-size:14px;
    }
    .toc-list a::before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--amber);
      margin-top:9px;
      flex:0 0 auto;
    }
    .toc-list a:hover{color:var(--amber-2);border-color:rgba(230,168,74,.24);transform:translateX(3px)}
    .notice-card{
      background:
        linear-gradient(135deg,rgba(184,58,75,.18),rgba(230,168,74,.08)),
        rgba(33,30,39,.9);
      border-color:rgba(184,58,75,.25);
    }
    .notice-card p,.side-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
    .badge-soft{
      display:inline-flex;align-items:center;
      padding:7px 10px;border-radius:999px;
      background:rgba(230,168,74,.09);
      border:1px solid rgba(230,168,74,.18);
      color:var(--amber-2);
      font-size:13px;font-weight:750;
    }
    .quick-list{display:grid;gap:12px}
    .quick-list a{
      display:grid;gap:4px;
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.035);
      border:1px solid var(--border);
      transition:var(--ease);
    }
    .quick-list a:hover{
      transform:translateY(-2px);
      border-color:rgba(184,58,75,.42);
      background:rgba(184,58,75,.08);
    }
    .quick-list strong{
      color:var(--text);
      font-size:15px;
      transition:var(--ease);
    }
    .quick-list a:hover strong{color:var(--amber-2)}
    .quick-list span{color:var(--weak);font-size:13px;line-height:1.55}
    .article-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      margin-top:22px;
      padding:18px;
      border-radius:20px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.035);
    }
    .article-actions p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      max-width:520px;
    }
    .related-section{
      margin-top:28px;
    }
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:18px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:28px;
      line-height:1.25;
      font-weight:800;
      color:var(--text);
    }
    .section-head p{
      margin:6px 0 0;
      color:var(--muted);
      font-size:15px;
    }
    .related-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .related-card{
      position:relative;
      overflow:hidden;
      border-radius:20px;
      background:var(--panel);
      border:1px solid var(--border);
      transition:var(--ease);
      min-height:170px;
    }
    .related-card:hover{
      transform:translateY(-4px);
      border-color:rgba(184,58,75,.48);
      box-shadow:var(--shadow-soft);
    }
    .related-card img{
      position:absolute;inset:0;width:100%;height:100%;
      object-fit:cover;
      opacity:.42;
      filter:saturate(.85) contrast(1.05);
    }
    .related-card::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(13,12,16,.22),rgba(13,12,16,.84));
    }
    .related-card-content{
      position:relative;z-index:2;
      height:100%;
      padding:20px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      gap:10px;
    }
    .related-card h3{
      margin:0;
      color:var(--text);
      font-size:18px;
      line-height:1.45;
      font-weight:780;
      transition:var(--ease);
    }
    .related-card:hover h3{color:var(--amber-2)}
    .related-card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }
    .cta-band{
      margin-top:34px;
      position:relative;
      overflow:hidden;
      border-radius:26px;
      border:1px solid rgba(230,168,74,.2);
      background:
        linear-gradient(135deg,rgba(184,58,75,.28),rgba(33,30,39,.88) 48%,rgba(230,168,74,.14)),
        var(--panel-2);
      box-shadow:var(--shadow);
      padding:30px;
    }
    .cta-band::before,.cta-band::after{
      content:"";
      position:absolute;top:0;bottom:0;width:22px;
      background:repeating-linear-gradient(180deg,rgba(255,255,255,.18) 0 10px,transparent 10px 20px);
      opacity:.28;
    }
    .cta-band::before{left:12px}
    .cta-band::after{right:12px}
    .cta-inner{
      position:relative;
      z-index:2;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      padding:0 22px;
    }
    .cta-band h2{
      margin:0 0 8px;
      font-size:28px;
      line-height:1.28;
      font-weight:820;
    }
    .cta-band p{
      margin:0;
      color:var(--muted);
      max-width:720px;
    }
    .cta-buttons{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}
    .mini-faq{
      margin-top:30px;
      display:grid;
      gap:12px;
    }
    .faq-item{
      background:rgba(33,30,39,.82);
      border:1px solid var(--border);
      border-radius:18px;
      overflow:hidden;
      transition:var(--ease);
    }
    .faq-question{
      width:100%;
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:18px 20px;
      background:transparent;
      color:var(--text);
      font-weight:760;
      text-align:left;
    }
    .faq-question span:last-child{
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(255,255,255,.05);
      color:var(--amber-2);
      flex:0 0 auto;
      transition:var(--ease);
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .24s ease;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
    }
    .faq-answer p{margin:0;padding:0 20px 18px;border-left:3px solid var(--red);margin-left:20px;padding-left:16px}
    .faq-item.active{
      background:rgba(184,58,75,.08);
      border-color:rgba(184,58,75,.35);
    }
    .faq-item.active .faq-question span:last-child{transform:rotate(45deg);background:rgba(230,168,74,.12)}
    .site-footer{
      background:linear-gradient(180deg,rgba(17,16,20,.96),#09080b);
      border-top:1px solid var(--border);
      padding:56px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr .75fr 1.25fr;
      gap:32px;
      align-items:start;
    }
    .footer-text{
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
      max-width:360px;
    }
    .footer-title{
      color:var(--text);
      font-weight:800;
      margin-bottom:13px;
      font-size:16px;
    }
    .footer-links{display:grid;gap:9px}
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      transition:var(--ease);
    }
    .footer-links a:hover{color:var(--amber-2);padding-left:4px}
    .disclaimer{
      padding:14px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--border);
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }
    .copyright{
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid var(--line);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1080px){
      :root{--header:70px}
      .nav-links{
        position:absolute;
        left:20px;right:20px;top:calc(var(--header) + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:20px;
        background:rgba(17,16,20,.96);
        border:1px solid var(--border);
        box-shadow:var(--shadow);
      }
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 14px}
      .menu-btn{display:block}
      .nav-actions .btn-secondary,.nav-actions .btn-primary{display:none}
      .article-layout{grid-template-columns:1fr}
      .sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
      .notice-card{grid-column:1 / -1}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .page-hero{padding:38px 0 22px}
      .article-title{letter-spacing:-.4px}
      .article-desc{font-size:16px}
      .meta-strip{gap:9px}
      .meta-pill{font-size:13px;padding:8px 11px}
      .article-shell{padding:34px 0 58px}
      .cover-card,.cover-card img{min-height:220px}
      .content-card{padding:24px 20px;border-radius:20px}
      .article-content{font-size:16px;line-height:1.85}
      .article-content h2{font-size:25px;margin-top:34px}
      .article-content h3{font-size:20px}
      .sidebar{grid-template-columns:1fr}
      .related-grid{grid-template-columns:1fr}
      .cta-inner{flex-direction:column;align-items:flex-start;padding:0 8px}
      .cta-band{padding:26px 20px}
      .cta-band::before,.cta-band::after{display:none}
      .cta-buttons,.article-actions{width:100%}
      .cta-buttons .btn,.article-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .brand-text{font-size:16px}
      .brand-mark{width:38px;height:38px}
      .nav-wrap{gap:12px}
      .article-kicker{font-size:13px}
      .section-head{display:block}
      .content-card{padding:22px 16px}
      .cover-caption{left:16px;right:16px}
      .article-actions{align-items:stretch}
      .copyright{display:grid}
    }

/* 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}