/* roulang page: index */
:root{
      --bg:#101114;
      --bg-2:#15161A;
      --panel:#1C1D22;
      --panel-2:#23242A;
      --text:#EDEDED;
      --muted:#A7A8AE;
      --weak:#72747C;
      --gold:#D7A35A;
      --gold-2:#E7BE7E;
      --purple:#8E6BFF;
      --border:rgba(255,255,255,.08);
      --line:rgba(255,255,255,.06);
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-soft:0 12px 34px rgba(0,0,0,.2);
      --radius-xl:24px;
      --radius-lg:18px;
      --radius-md:14px;
      --radius-pill:999px;
      --container:1200px;
      --header-h:76px;
      --ease:all .25s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth;scroll-padding-top:110px}
    body{
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;
      background:
        radial-gradient(circle at 18% 8%,rgba(215,163,90,.13),transparent 30%),
        radial-gradient(circle at 86% 12%,rgba(142,107,255,.11),transparent 28%),
        linear-gradient(180deg,#101114 0%,#15161A 48%,#101114 100%);
      color:var(--text);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.22;
      background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
      background-size:42px 42px;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(100% - 48px,var(--container));margin-inline:auto}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
    .top-notice{
      min-height:40px;
      background:rgba(16,17,20,.84);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(16px);
      font-size:13px;
      color:var(--muted);
    }
    .top-notice .container{
      display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 0;
    }
    .notice-left{display:flex;align-items:center;gap:10px}
    .notice-icon{
      width:24px;height:24px;border-radius:50%;
      display:grid;place-items:center;
      color:var(--gold-2);
      background:rgba(215,163,90,.12);
      border:1px solid rgba(215,163,90,.24);
      flex:0 0 auto;
    }
    .notice-btn{
      color:var(--gold-2);
      padding:5px 10px;
      border-radius:var(--radius-pill);
      border:1px solid rgba(215,163,90,.28);
      background:rgba(215,163,90,.08);
      white-space:nowrap;
    }
    .site-header{
      position:sticky;top:0;z-index:50;
      height:var(--header-h);
      background:rgba(21,22,26,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--border);
    }
    .nav{
      height:100%;
      display:flex;align-items:center;justify-content:space-between;gap:24px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(135deg,rgba(215,163,90,.96),rgba(142,107,255,.72));
      display:grid;place-items:center;box-shadow:0 10px 28px rgba(215,163,90,.16);
      flex:0 0 auto;
    }
    .brand-mark span{
      width:0;height:0;border-top:9px solid transparent;border-bottom:9px solid transparent;border-left:14px solid #15161A;margin-left:3px;
    }
    .brand-text{font-weight:800;letter-spacing:.2px;font-size:17px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{
      color:var(--muted);
      font-size:15px;
      padding:10px 13px;
      border-radius:var(--radius-pill);
      position:relative;
    }
    .nav-links a:hover,.nav-links a.active{color:var(--gold-2);background:rgba(215,163,90,.08)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;
      width:44px;height:44px;border-radius:14px;
      background:var(--panel);border:1px solid var(--border);color:var(--text);
    }
    .menu-toggle span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;border-radius:2px;transition:var(--ease)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:13px 20px;border-radius:var(--radius-pill);
      font-size:15px;font-weight:700;transition:var(--ease);
      border:1px solid transparent;
    }
    .btn-primary{
      color:#141414;background:var(--gold);
      box-shadow:0 12px 30px rgba(215,163,90,.22);
    }
    .btn-primary:hover{background:#e5b36e;transform:translateY(-2px);box-shadow:0 18px 38px rgba(215,163,90,.28)}
    .btn-secondary{
      color:var(--text);background:rgba(255,255,255,.04);border-color:var(--border);
    }
    .btn-secondary:hover{color:var(--gold-2);border-color:rgba(215,163,90,.45);transform:translateY(-2px)}
    .btn:active{transform:translateY(0);box-shadow:none}
    .btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,button:focus-visible{
      outline:3px solid rgba(215,163,90,.35);outline-offset:3px;
    }

    .hero{padding:92px 0 76px;position:relative}
    .hero-wrap{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:46px;
      align-items:center;
    }
    .hero-copy{position:relative;z-index:2}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:var(--radius-pill);
      color:var(--gold-2);background:rgba(215,163,90,.11);
      border:1px solid rgba(215,163,90,.25);
      font-size:13px;font-weight:700;margin-bottom:22px;
    }
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(215,163,90,.12)}
    h1{
      font-size:clamp(34px,5vw,54px);
      line-height:1.16;
      letter-spacing:-1.2px;
      margin-bottom:22px;
    }
    .hero-sub{
      max-width:650px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
      margin-bottom:28px;
    }
    .hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:20px}
    .legal-note{
      display:flex;align-items:flex-start;gap:10px;
      max-width:680px;color:var(--weak);font-size:13px;line-height:1.7;
    }
    .hero-stage{
      min-height:520px;position:relative;border-radius:32px;
      background:
        linear-gradient(180deg,rgba(28,29,34,.65),rgba(16,17,20,.92)),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      overflow:hidden;
      padding:26px;
    }
    .hero-stage:before{
      content:"";position:absolute;inset:0;
      background:radial-gradient(circle at 82% 16%,rgba(215,163,90,.26),transparent 28%),linear-gradient(135deg,rgba(0,0,0,.2),rgba(0,0,0,.58));
      z-index:0;
    }
    .stage-panel{
      position:relative;z-index:1;height:100%;
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-content:end;
    }
    .preview-card{
      border-radius:22px;overflow:hidden;position:relative;
      background:var(--panel);border:1px solid rgba(255,255,255,.12);
      box-shadow:0 18px 40px rgba(0,0,0,.25);
      min-height:180px;
    }
    .preview-card.large{grid-column:1 / -1;min-height:230px}
    .preview-card img{width:100%;height:100%;object-fit:cover;filter:saturate(.82) brightness(.76);transition:var(--ease)}
    .preview-card:hover img{transform:scale(1.035)}
    .preview-card:after{
      content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(0,0,0,.78));
    }
    .play-dot{
      position:absolute;top:16px;right:16px;z-index:2;
      width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
      background:rgba(215,163,90,.92);color:#141414;font-weight:900;
      box-shadow:0 10px 24px rgba(0,0,0,.28);
    }
    .preview-meta{
      position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
      display:flex;align-items:center;justify-content:space-between;gap:10px;color:#fff;font-size:13px;
    }
    .tag,.badge{
      display:inline-flex;align-items:center;gap:6px;
      border-radius:var(--radius-pill);padding:6px 10px;font-size:12px;line-height:1.1;
      white-space:nowrap;
    }
    .tag-primary{background:rgba(215,163,90,.12);border:1px solid rgba(215,163,90,.24);color:var(--gold-2)}
    .tag-muted{background:rgba(255,255,255,.06);border:1px solid var(--border);color:#B8B9C0}
    .section{padding:78px 0}
    .section-head{
      display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;
    }
    .section-title{font-size:clamp(26px,3vw,36px);line-height:1.25;letter-spacing:-.4px}
    .section-desc{color:var(--muted);max-width:610px;font-size:16px}
    .trust-strip{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
      margin-top:-22px;position:relative;z-index:4;
    }
    .trust-item{
      background:rgba(28,29,34,.74);border:1px solid var(--border);
      border-radius:var(--radius-pill);padding:14px 16px;
      display:flex;align-items:center;gap:12px;color:var(--muted);
      box-shadow:var(--shadow-soft);backdrop-filter:blur(14px);
      transition:var(--ease);
    }
    .trust-item:hover{border-color:rgba(215,163,90,.42);transform:translateY(-2px);color:var(--text)}
    .trust-ico{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:rgba(215,163,90,.1);color:var(--gold-2);flex:0 0 auto}

    .latest-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:22px;align-items:start}
    .feature-post,.list-card,.info-card,.step-card,.faq-item,.feedback-card,.empty-state{
      background:linear-gradient(180deg,rgba(35,36,42,.92),rgba(28,29,34,.96));
      border:1px solid var(--border);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      transition:var(--ease);
    }
    .feature-post:hover,.list-card:hover,.info-card:hover,.step-card:hover{border-color:rgba(215,163,90,.32);transform:translateY(-3px);box-shadow:var(--shadow)}
    .feature-cover{
      position:relative;overflow:hidden;border-radius:var(--radius-xl) var(--radius-xl) 0 0;aspect-ratio:16/9;background:#202127;
    }
    .feature-cover img{width:100%;height:100%;object-fit:cover;filter:brightness(.78) saturate(.86);transition:var(--ease)}
    .feature-post:hover .feature-cover img{transform:scale(1.035)}
    .feature-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 42%,rgba(0,0,0,.74))}
    .feature-body{padding:24px}
    .feature-body h3,.list-card h3{font-size:22px;line-height:1.35;margin:14px 0 10px}
    .feature-body p,.list-card p,.info-card p,.step-card p{color:var(--muted);font-size:15px;line-height:1.75}
    .post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--weak);font-size:13px}
    .post-link{display:inline-flex;color:var(--gold-2);font-weight:700;margin-top:18px}
    .dynamic-list{display:grid;gap:12px}
    .list-card{
      display:grid;grid-template-columns:96px 1fr;gap:16px;
      padding:14px;border-radius:var(--radius-lg);
    }
    .list-thumb{
      width:96px;height:96px;border-radius:16px;overflow:hidden;background:#24252b;position:relative;
    }
    .list-thumb img{width:100%;height:100%;object-fit:cover;filter:brightness(.78)}
    .list-card h3{font-size:17px;margin:8px 0 5px}
    .list-card p{font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .empty-state{padding:34px;text-align:center;color:var(--muted)}
    .empty-icon{width:58px;height:58px;border-radius:20px;margin:0 auto 14px;display:grid;place-items:center;background:rgba(215,163,90,.1);color:var(--gold-2);font-size:24px}

    .guide{
      background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0));
      border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    }
    .steps{
      display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;
    }
    .step-card{padding:22px;position:relative;overflow:hidden}
    .step-no{
      width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
      color:#15161A;background:var(--gold);font-weight:900;margin-bottom:18px;
    }
    .step-card h3{font-size:19px;margin-bottom:8px}
    .step-card:after{content:"";position:absolute;right:-20px;top:-20px;width:88px;height:88px;border-radius:50%;background:rgba(142,107,255,.08)}
    .features-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .info-card{padding:26px;overflow:hidden;position:relative}
    .info-card.big{
      min-height:360px;
      background:
        linear-gradient(90deg,rgba(28,29,34,.98),rgba(28,29,34,.72)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .info-card h3{font-size:24px;margin-bottom:12px}
    .mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .metric-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .metric{
      padding:14px 16px;border-radius:18px;background:rgba(0,0,0,.2);border:1px solid var(--border);
    }
    .metric strong{display:block;color:var(--gold-2);font-size:20px}
    .metric span{color:var(--muted);font-size:13px}
    .safe-panel{
      display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:center;
      background:rgba(28,29,34,.72);border:1px solid var(--border);border-radius:32px;padding:24px;
    }
    .safe-image{border-radius:24px;overflow:hidden;aspect-ratio:16/10;background:#202127;position:relative}
    .safe-image img{width:100%;height:100%;object-fit:cover;filter:brightness(.72) saturate(.85)}
    .safe-content h2{margin-bottom:14px}
    .safe-list{list-style:none;margin-top:18px;display:grid;gap:12px}
    .safe-list li{display:flex;gap:10px;color:var(--muted)}
    .safe-list li:before{content:"✓";color:var(--gold-2);font-weight:900}

    .faq-list{display:grid;gap:12px;max-width:940px;margin:0 auto}
    .faq-item{border-radius:var(--radius-lg);overflow:hidden}
    .faq-question{
      width:100%;background:transparent;color:var(--text);
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:20px 22px;text-align:left;font-weight:800;
    }
    .faq-question .plus{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.06);color:var(--gold-2);transition:var(--ease);flex:0 0 auto}
    .faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease}
    .faq-answer p{padding:0 22px 20px;color:var(--muted);max-width:820px}
    .faq-item.open{border-color:rgba(215,163,90,.35);background:rgba(35,36,42,.96)}
    .faq-item.open .plus{transform:rotate(45deg);background:rgba(215,163,90,.14)}
    .faq-item.open .faq-answer{max-height:180px}

    .cta-panel{
      display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
      border-radius:32px;padding:34px;
      background:
        radial-gradient(circle at 84% 20%,rgba(215,163,90,.18),transparent 28%),
        linear-gradient(135deg,rgba(35,36,42,.96),rgba(24,25,30,.96));
      border:1px solid rgba(215,163,90,.18);
      box-shadow:var(--shadow);
    }
    .cta-panel h2{font-size:clamp(25px,3vw,34px);margin-bottom:8px}
    .cta-panel p{color:var(--muted);max-width:720px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}

    .feedback-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:22px}
    .feedback-card{padding:26px}
    .feedback-card h3{font-size:24px;margin-bottom:10px}
    .feedback-card p{color:var(--muted)}
    .contact-form{display:grid;gap:14px}
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}
    .field input,.field textarea,.field select{
      width:100%;border-radius:16px;border:1px solid var(--border);
      background:rgba(16,17,20,.64);color:var(--text);
      padding:13px 14px;outline:none;transition:var(--ease);
    }
    .field textarea{min-height:124px;resize:vertical}
    .field input:focus,.field textarea:focus,.field select:focus{border-color:rgba(215,163,90,.62);box-shadow:0 0 0 4px rgba(215,163,90,.08)}
    .form-tip{font-size:13px;color:var(--weak)}

    .footer{
      background:#0C0D10;border-top:1px solid var(--line);padding:54px 0 28px;margin-top:34px;
    }
    .footer-top{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:34px;margin-bottom:32px}
    .footer .brand{margin-bottom:14px}
    .footer p{color:var(--muted);font-size:14px;max-width:560px}
    .footer h3{font-size:15px;margin-bottom:12px;color:var(--text)}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:var(--muted);font-size:14px}
    .footer-links a:hover{color:var(--gold-2)}
    .copyright{
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      padding-top:22px;border-top:1px solid var(--line);
      color:var(--weak);font-size:13px;
    }

    @media (max-width:1024px){
      .hero-wrap,.latest-layout,.features-grid,.safe-panel,.feedback-wrap{grid-template-columns:1fr}
      .hero-stage{min-height:470px}
      .trust-strip{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:repeat(2,1fr)}
      .nav-links{gap:2px}
      .nav-links a{padding:9px 10px}
    }
    @media (max-width:820px){
      .container{width:min(100% - 36px,var(--container))}
      .site-header{height:68px}
      .nav-links{
        position:absolute;left:18px;right:18px;top:74px;
        display:none;flex-direction:column;align-items:stretch;gap:6px;
        padding:14px;border-radius:22px;background:#15161A;border:1px solid var(--border);box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{min-height:44px;display:flex;align-items:center}
      .menu-toggle{display:block}
      .nav-actions .btn-secondary{display:none}
      .hero{padding:64px 0 56px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-desc{margin-top:10px}
      .cta-panel{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .footer-top{grid-template-columns:1fr}
    }
    @media (max-width:560px){
      .top-notice .container{align-items:flex-start}
      .notice-btn{display:none}
      .brand-text{font-size:15px;max-width:210px}
      .nav-actions .btn-primary{display:none}
      .hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}
      .hero-stage{min-height:auto;padding:16px;border-radius:24px}
      .stage-panel{grid-template-columns:1fr}
      .preview-card,.preview-card.large{min-height:188px}
      .trust-strip,.steps,.mini-grid{grid-template-columns:1fr}
      .trust-item{border-radius:18px}
      .list-card{grid-template-columns:78px 1fr;padding:12px}
      .list-thumb{width:78px;height:78px}
      .feature-body,.info-card,.feedback-card{padding:20px}
      .form-row{grid-template-columns:1fr}
      .safe-panel,.cta-panel{padding:20px;border-radius:24px}
      .footer{padding-top:42px}
    }

/* roulang page: article */
:root{
      --bg:#101114;
      --bg-2:#15161A;
      --panel:#1C1D22;
      --panel-2:#23242A;
      --text:#EDEDED;
      --muted:#A7A8AE;
      --weak:#72747C;
      --gold:#D7A35A;
      --gold-2:#E7BE7E;
      --purple:#8E6BFF;
      --border:rgba(255,255,255,.08);
      --line:rgba(255,255,255,.06);
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-soft:0 12px 34px rgba(0,0,0,.2);
      --radius-xl:24px;
      --radius-lg:18px;
      --radius-md:14px;
      --radius-pill:999px;
      --container:1200px;
      --header-h:76px;
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:110px}
    body{
      margin:0;
      font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;
      background:
        radial-gradient(circle at 18% 8%,rgba(215,163,90,.13),transparent 30%),
        radial-gradient(circle at 86% 12%,rgba(142,107,255,.11),transparent 28%),
        linear-gradient(180deg,#101114 0%,#15161A 48%,#101114 100%);
      color:var(--text);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.22;
      background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
      background-size:42px 42px;
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(100% - 48px,var(--container));margin-inline:auto}
    .top-notice{
      background:rgba(16,17,20,.78);
      border-bottom:1px solid var(--line);
      color:var(--muted);
      font-size:13px;
    }
    .top-notice .container{
      display:flex;align-items:center;justify-content:space-between;gap:16px;padding:8px 0;
    }
    .notice-copy{display:flex;align-items:center;gap:10px;min-width:0}
    .notice-icon{
      width:24px;height:24px;border-radius:50%;
      display:grid;place-items:center;flex:0 0 auto;
      color:#15161A;background:var(--gold);
      font-weight:900;font-size:13px;
    }
    .notice-btn{
      color:var(--gold-2);
      padding:5px 10px;
      border-radius:var(--radius-pill);
      border:1px solid rgba(215,163,90,.28);
      background:rgba(215,163,90,.08);
      white-space:nowrap;
    }
    .site-header{
      position:sticky;top:0;z-index:50;
      height:var(--header-h);
      background:rgba(21,22,26,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--border);
    }
    .nav{
      height:100%;
      display:flex;align-items:center;justify-content:space-between;gap:24px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(135deg,rgba(215,163,90,.96),rgba(142,107,255,.72));
      display:grid;place-items:center;box-shadow:0 10px 28px rgba(215,163,90,.16);
      flex:0 0 auto;
    }
    .brand-mark span{
      width:0;height:0;border-top:9px solid transparent;border-bottom:9px solid transparent;border-left:14px solid #15161A;margin-left:3px;
    }
    .brand-text{font-weight:800;letter-spacing:.2px;font-size:17px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .nav-links{display:flex;align-items:center;gap:6px}
    .nav-links a{
      color:var(--muted);
      font-size:15px;
      padding:10px 13px;
      border-radius:var(--radius-pill);
      position:relative;
    }
    .nav-links a:hover,.nav-links a.active{color:var(--gold-2);background:rgba(215,163,90,.08)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;
      width:44px;height:44px;border-radius:14px;
      background:var(--panel);border:1px solid var(--border);color:var(--text);
    }
    .menu-toggle span{display:block;width:18px;height:2px;background:currentColor;margin:4px auto;border-radius:2px;transition:var(--ease)}
    .menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .menu-toggle.is-open span:nth-child(2){opacity:0}
    .menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:13px 20px;border-radius:var(--radius-pill);
      font-size:15px;font-weight:700;transition:var(--ease);
      border:1px solid transparent;
    }
    .btn-primary{
      color:#141414;background:var(--gold);
      box-shadow:0 12px 30px rgba(215,163,90,.22);
    }
    .btn-primary:hover{background:#e5b36e;transform:translateY(-2px);box-shadow:0 18px 38px rgba(215,163,90,.28);color:#141414}
    .btn-secondary{
      color:var(--text);background:rgba(255,255,255,.04);border-color:var(--border);
    }
    .btn-secondary:hover{color:var(--gold-2);border-color:rgba(215,163,90,.45);transform:translateY(-2px)}
    .btn:active{transform:translateY(0);box-shadow:none}
    .btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,button:focus-visible{
      outline:3px solid rgba(215,163,90,.35);outline-offset:3px;
    }
    .article-hero{
      padding:54px 0 38px;
      position:relative;
    }
    .article-hero:before{
      content:"";
      position:absolute;
      inset:0 0 auto 0;
      height:360px;
      background:
        linear-gradient(180deg,rgba(16,17,20,.2),rgba(16,17,20,.9)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      opacity:.22;
      pointer-events:none;
    }
    .article-head{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:28px;
      align-items:stretch;
    }
    .article-title-card{
      border:1px solid var(--border);
      background:linear-gradient(180deg,rgba(28,29,34,.86),rgba(28,29,34,.62));
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
      padding:34px;
      overflow:hidden;
      position:relative;
    }
    .article-title-card:after{
      content:"";
      position:absolute;
      width:260px;height:260px;
      right:-110px;top:-130px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(215,163,90,.16),transparent 68%);
      pointer-events:none;
    }
    .breadcrumb{
      display:flex;align-items:center;flex-wrap:wrap;gap:8px;
      margin:0 0 22px;
      color:var(--weak);
      font-size:14px;
    }
    .breadcrumb a{color:var(--muted)}
    .breadcrumb a:hover{color:var(--gold-2)}
    .breadcrumb .sep{color:rgba(255,255,255,.22)}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:var(--radius-pill);
      color:var(--gold-2);background:rgba(215,163,90,.11);
      border:1px solid rgba(215,163,90,.25);
      font-size:13px;font-weight:700;margin-bottom:18px;
    }
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(215,163,90,.12)}
    h1{
      margin:0;
      font-size:clamp(30px,4vw,44px);
      line-height:1.22;
      letter-spacing:-.4px;
      font-weight:900;
      color:#fff;
      max-width:900px;
    }
    .article-desc{
      margin:18px 0 0;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
      max-width:860px;
    }
    .meta-row{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      border-radius:var(--radius-pill);
      padding:7px 11px;
      font-size:12px;
      font-weight:700;
      border:1px solid var(--border);
      color:var(--muted);
      background:rgba(255,255,255,.04);
    }
    .badge.gold{
      color:var(--gold-2);
      background:rgba(215,163,90,.12);
      border-color:rgba(215,163,90,.24);
    }
    .cover-card{
      min-height:100%;
      border:1px solid var(--border);
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:var(--panel);
      box-shadow:var(--shadow-soft);
      position:relative;
    }
    .cover-card img{
      width:100%;
      height:260px;
      object-fit:cover;
      filter:saturate(.85) brightness(.78);
      transition:var(--ease);
    }
    .cover-card:hover img{transform:scale(1.03)}
    .cover-info{
      padding:20px;
      background:linear-gradient(180deg,rgba(28,29,34,.5),rgba(28,29,34,1));
    }
    .cover-info strong{display:block;font-size:18px;margin-bottom:8px;color:#fff}
    .cover-info p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .section{padding:44px 0}
    .reader-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) minmax(280px,1fr);
      gap:28px;
      align-items:start;
    }
    .article-body-card{
      background:rgba(28,29,34,.82);
      border:1px solid var(--border);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      padding:34px;
      min-width:0;
    }
    .summary-box{
      border:1px solid rgba(215,163,90,.22);
      background:linear-gradient(135deg,rgba(215,163,90,.1),rgba(142,107,255,.06));
      border-radius:var(--radius-lg);
      padding:18px 20px;
      margin-bottom:28px;
      color:var(--text);
    }
    .summary-box strong{
      display:flex;align-items:center;gap:9px;
      color:var(--gold-2);
      margin-bottom:8px;
      font-size:15px;
    }
    .summary-box strong:before{
      content:"";
      width:10px;height:10px;border-radius:50%;background:var(--gold);
      box-shadow:0 0 0 5px rgba(215,163,90,.12);
    }
    .summary-box p{margin:0;color:var(--muted);line-height:1.85}
    .content-not-found{
      text-align:center;
      padding:54px 18px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.035);
      border:1px dashed rgba(255,255,255,.14);
    }
    .content-not-found h2{font-size:26px;margin:0 0 12px;color:#fff}
    .content-not-found p{color:var(--muted);margin:0 0 22px}
    .article-content{
      color:#E6E6E8;
      font-size:17px;
      line-height:1.9;
      word-break:break-word;
    }
    .article-content p{margin:0 0 1.15em}
    .article-content h2{
      font-size:28px;
      line-height:1.35;
      margin:2em 0 .85em;
      color:#fff;
      font-weight:850;
      position:relative;
      padding-left:16px;
    }
    .article-content h2:before{
      content:"";
      position:absolute;left:0;top:.28em;
      width:4px;height:1.05em;
      border-radius:99px;
      background:var(--gold);
    }
    .article-content h3{
      font-size:22px;
      line-height:1.38;
      margin:1.65em 0 .72em;
      color:#fff;
      font-weight:800;
    }
    .article-content h4{font-size:19px;margin:1.4em 0 .5em;color:#fff}
    .article-content a{
      color:var(--gold-2);
      text-decoration:underline;
      text-decoration-color:rgba(215,163,90,.45);
      text-underline-offset:4px;
    }
    .article-content a:hover{color:#fff;background:rgba(215,163,90,.12)}
    .article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.25em}
    .article-content li{margin:.45em 0;padding-left:.18em}
    .article-content li::marker{color:var(--gold-2);font-weight:800}
    .article-content blockquote{
      margin:1.5em 0;
      padding:18px 20px;
      border-left:4px solid var(--gold);
      border-radius:0 var(--radius-lg) var(--radius-lg) 0;
      background:rgba(255,255,255,.045);
      color:var(--muted);
    }
    .article-content img{
      border-radius:var(--radius-lg);
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
      margin:1.4em auto;
      height:auto;
    }
    .article-content figure{margin:1.5em 0}
    .article-content figcaption{
      color:var(--weak);
      font-size:13px;
      text-align:center;
      margin-top:8px;
    }
    .article-content table{
      width:100%;
      border-collapse:collapse;
      margin:1.5em 0;
      overflow:hidden;
      border-radius:var(--radius-md);
      display:block;
      max-width:100%;
      overflow-x:auto;
    }
    .article-content th,.article-content td{
      border:1px solid var(--border);
      padding:12px 14px;
      min-width:120px;
    }
    .article-content th{background:rgba(215,163,90,.1);color:var(--gold-2)}
    .article-content code{
      color:var(--gold-2);
      background:rgba(255,255,255,.06);
      padding:2px 6px;
      border-radius:7px;
    }
    .side-stack{
      display:grid;
      gap:18px;
      position:sticky;
      top:calc(var(--header-h) + 20px);
    }
    .side-card{
      background:rgba(28,29,34,.82);
      border:1px solid var(--border);
      border-radius:var(--radius-xl);
      padding:22px;
      box-shadow:var(--shadow-soft);
    }
    .side-card h2,.side-card h3{
      margin:0 0 14px;
      color:#fff;
      font-size:20px;
      line-height:1.35;
      font-weight:850;
    }
    .side-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .guide-list{display:grid;gap:12px;margin-top:16px}
    .guide-item{
      display:flex;gap:12px;
      padding:13px;
      border:1px solid var(--border);
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.035);
      transition:var(--ease);
    }
    .guide-item:hover{border-color:rgba(215,163,90,.34);transform:translateY(-2px);background:rgba(215,163,90,.055)}
    .guide-num{
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      flex:0 0 auto;
      background:rgba(215,163,90,.13);
      color:var(--gold-2);
      border:1px solid rgba(215,163,90,.28);
      font-weight:900;
      font-size:12px;
    }
    .guide-item strong{display:block;color:#fff;font-size:14px;margin-bottom:3px}
    .guide-item span{display:block;color:var(--muted);font-size:13px;line-height:1.6}
    .related-list{display:grid;gap:12px;margin-top:14px}
    .related-link{
      display:block;
      padding:14px;
      border-radius:var(--radius-md);
      border:1px solid var(--border);
      background:rgba(255,255,255,.035);
      transition:var(--ease);
    }
    .related-link:hover{border-color:rgba(215,163,90,.36);background:rgba(215,163,90,.06);transform:translateY(-2px)}
    .related-link strong{
      display:block;
      color:#fff;
      font-size:14px;
      line-height:1.55;
      margin-bottom:7px;
    }
    .related-link span{
      color:var(--weak);
      font-size:12px;
    }
    .privacy-card{
      background:
        linear-gradient(180deg,rgba(35,36,42,.86),rgba(28,29,34,.88)),
        url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
      background-blend-mode:multiply;
    }
    .mini-cta{
      margin-top:30px;
      padding:22px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(215,163,90,.2);
      background:linear-gradient(135deg,rgba(215,163,90,.11),rgba(142,107,255,.06));
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .mini-cta h2{margin:0 0 6px;font-size:22px;color:#fff}
    .mini-cta p{margin:0;color:var(--muted);font-size:14px}
    .info-band{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
      margin-top:28px;
    }
    .info-pill{
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.035);
      padding:18px;
      transition:var(--ease);
    }
    .info-pill:hover{border-color:rgba(215,163,90,.34);transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .info-pill strong{display:block;color:#fff;margin-bottom:6px}
    .info-pill span{display:block;color:var(--muted);font-size:14px;line-height:1.7}
    .faq-section{padding:34px 0 70px}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:22px;
    }
    .section-head h2{
      margin:0;
      color:#fff;
      font-size:30px;
      line-height:1.3;
      font-weight:900;
    }
    .section-head p{margin:8px 0 0;color:var(--muted);max-width:680px}
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .faq-item{
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:rgba(28,29,34,.78);
      overflow:hidden;
      transition:var(--ease);
    }
    .faq-item:hover{border-color:rgba(215,163,90,.26)}
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:18px 20px;
      color:#fff;
      background:transparent;
      text-align:left;
      font-weight:800;
    }
    .faq-question .icon{
      width:28px;height:28px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(215,163,90,.1);
      color:var(--gold-2);
      flex:0 0 auto;
      transition:var(--ease);
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-answer p{
      margin:0;
      padding:0 20px 18px;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .faq-item.open{background:rgba(35,36,42,.9);border-color:rgba(215,163,90,.34)}
    .faq-item.open .faq-question .icon{transform:rotate(45deg);background:rgba(215,163,90,.18)}
    .footer{
      padding:54px 0 30px;
      background:rgba(10,11,13,.82);
      border-top:1px solid var(--border);
    }
    .footer-top{
      display:grid;
      grid-template-columns:1.3fr .7fr .7fr;
      gap:34px;
      padding-bottom:28px;
      border-bottom:1px solid var(--line);
    }
    .footer p{margin:16px 0 0;color:var(--muted);max-width:560px;font-size:14px;line-height:1.8}
    .footer h3{font-size:16px;color:#fff;margin:0 0 14px;font-weight:800}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:var(--muted);font-size:14px}
    .footer-links a:hover{color:var(--gold-2);padding-left:3px}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:22px;
      color:var(--weak);
      font-size:13px;
    }
    @media (max-width:1024px){
      .article-head{grid-template-columns:1fr}
      .cover-card{display:grid;grid-template-columns:320px 1fr;align-items:center}
      .cover-card img{height:100%;min-height:220px}
      .reader-layout{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(2,1fr)}
      .side-stack .privacy-card{grid-column:1 / -1}
      .nav-actions .btn{display:none}
    }
    @media (max-width:768px){
      :root{--header-h:68px}
      .container{width:min(100% - 36px,var(--container))}
      .top-notice .container{align-items:flex-start}
      .notice-copy{line-height:1.6}
      .site-header{height:var(--header-h)}
      .brand-text{max-width:190px;font-size:15px}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        left:18px;
        right:18px;
        top:calc(var(--header-h) + 10px);
        display:grid;
        gap:8px;
        padding:14px;
        border-radius:20px;
        border:1px solid var(--border);
        background:#15161A;
        box-shadow:var(--shadow);
        opacity:0;
        transform:translateY(-8px);
        pointer-events:none;
      }
      .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
      .nav-links a{padding:12px 14px}
      .article-hero{padding:34px 0 24px}
      .article-title-card{padding:24px}
      .cover-card{display:block}
      .cover-card img{height:220px}
      .article-body-card{padding:23px}
      .article-content{font-size:16px}
      .article-content h2{font-size:24px}
      .article-content h3{font-size:20px}
      .mini-cta{display:grid}
      .mini-cta .btn{width:100%}
      .side-stack{grid-template-columns:1fr}
      .info-band{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .footer-top{grid-template-columns:1fr;gap:26px}
      .copyright{display:grid}
    }
    @media (max-width:520px){
      .container{width:min(100% - 28px,var(--container))}
      .top-notice{font-size:12px}
      .notice-btn{display:none}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text{max-width:154px}
      .article-title-card{padding:20px;border-radius:20px}
      .breadcrumb{font-size:13px}
      .meta-row{gap:8px}
      .badge{font-size:11px}
      .article-body-card{padding:18px;border-radius:20px}
      .summary-box{padding:16px}
      .btn{width:100%;padding-inline:16px}
      .section{padding:30px 0}
      .faq-section{padding-bottom:52px}
    }

/* 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}