/* roulang page: index */
:root{
      --bg:#111015;
      --bg-2:#17131d;
      --panel:#1d1924;
      --panel-2:#241f2d;
      --panel-3:#2a2430;
      --paper:#f7f3ea;
      --paper-text:#28232b;
      --text:#e8e5df;
      --muted:#a7a1aa;
      --muted-2:#7f7786;
      --border:rgba(232,229,223,.12);
      --border-strong:rgba(232,229,223,.22);
      --primary:#ff7a45;
      --primary-2:#ff9b6f;
      --secondary:#34d3a4;
      --warning:#f5b84b;
      --shadow:0 24px 60px rgba(0,0,0,.32);
      --shadow-soft:0 18px 42px rgba(0,0,0,.22);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --header-h:78px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      background:
        radial-gradient(circle at 12% 6%, rgba(255,122,69,.16), transparent 34%),
        radial-gradient(circle at 82% 10%, rgba(52,211,164,.14), transparent 30%),
        linear-gradient(180deg,var(--bg) 0%,#141119 42%,#0f0e13 100%);
      color:var(--text);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;background:none;color:inherit;cursor:pointer}
    input{border:0;outline:0}
    ::selection{background:rgba(255,122,69,.35);color:#fff}

    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:88px 0;position:relative}
    .section-tight{padding:56px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      min-height:30px;padding:5px 12px;border-radius:999px;
      color:#ffe7da;background:rgba(255,122,69,.13);
      border:1px solid rgba(255,122,69,.28);
      font-size:13px;font-weight:700;letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";width:7px;height:7px;border-radius:999px;background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,122,69,.12);
    }
    .section-head{display:flex;justify-content:space-between;gap:32px;align-items:flex-end;margin-bottom:30px}
    .section-title{font-size:34px;line-height:1.22;font-weight:800;letter-spacing:-.02em}
    .section-desc{max-width:620px;color:var(--muted);font-size:16px}
    .gradient-text{
      background:linear-gradient(120deg,#fff 0%,#ffe0d0 42%,#8ff1d2 100%);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }

    .site-header{
      position:sticky;top:0;z-index:1000;height:var(--header-h);
      backdrop-filter:blur(18px);
      background:rgba(17,16,21,.72);
      border-bottom:1px solid rgba(232,229,223,.09);
      transition:background .25s var(--ease),box-shadow .25s var(--ease);
    }
    .site-header.is-scrolled{background:rgba(17,16,21,.92);box-shadow:0 14px 34px rgba(0,0,0,.24)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{
      display:flex;align-items:center;gap:12px;min-width:max-content;font-weight:850;letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      background:linear-gradient(135deg,var(--primary),#ffb089 58%,var(--secondary));
      display:grid;place-items:center;box-shadow:0 14px 32px rgba(255,122,69,.22);
      position:relative;overflow:hidden;
    }
    .brand-mark::before{
      content:"";width:0;height:0;border-top:8px solid transparent;border-bottom:8px solid transparent;border-left:13px solid #151119;margin-left:3px;z-index:2;
    }
    .brand-mark::after{
      content:"";position:absolute;inset:-28%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);
      transform:rotate(28deg) translateX(-140%);animation:shine 5s infinite;
    }
    @keyframes shine{0%,65%{transform:rotate(28deg) translateX(-140%)}78%,100%{transform:rotate(28deg) translateX(140%)}}
    .brand-text{font-size:18px;color:#fff}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-links a{
      padding:10px 13px;border-radius:999px;color:var(--muted);font-size:14px;font-weight:650;
    }
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.07)}
    .header-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--border);
      background:rgba(255,255,255,.05);
    }
    .menu-toggle span{
      display:block;width:18px;height:2px;background:#fff;margin:5px auto;border-radius:2px;transition:.22s var(--ease);
    }
    .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
    .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:13px 20px;border-radius:999px;
      font-size:15px;font-weight:800;line-height:1;border:1px solid transparent;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      color:#180f0b;background:linear-gradient(135deg,var(--primary),#ffac7c);
      box-shadow:0 14px 30px rgba(255,122,69,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(255,122,69,.32);background:linear-gradient(135deg,#ff6b32,#ffc09b)}
    .btn-secondary{color:var(--text);background:rgba(255,255,255,.045);border-color:var(--border)}
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(52,211,164,.55);color:#fff;background:rgba(52,211,164,.08)}
    .btn-link{
      display:inline-flex;align-items:center;gap:8px;color:#ffd8c6;font-weight:800;font-size:14px;
    }
    .btn-link .arrow{transition:transform .22s var(--ease)}
    .btn-link:hover{color:var(--secondary)}
    .btn-link:hover .arrow{transform:translateX(4px)}

    .hero{
      position:relative;min-height:760px;display:flex;align-items:center;padding:84px 0 74px;overflow:hidden;
    }
    .hero::before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(17,16,21,.96) 0%,rgba(17,16,21,.76) 48%,rgba(17,16,21,.9) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity:.9;
    }
    .hero::after{
      content:"";position:absolute;inset:auto -18% -36% -18%;height:420px;
      background:radial-gradient(circle,rgba(255,122,69,.22),transparent 62%);
      filter:blur(18px);pointer-events:none;
    }
    .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.03fr) minmax(360px,.97fr);gap:46px;align-items:center}
    .hero-copy{max-width:670px}
    .hero-brandline{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:20px}
    .hero h1{font-size:54px;line-height:1.12;font-weight:850;letter-spacing:-.04em;margin-bottom:22px}
    .hero-subtitle{font-size:18px;color:#d4ced8;max-width:620px;line-height:1.85;margin-bottom:28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
    .badge{
      display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;
      background:rgba(255,255,255,.055);border:1px solid var(--border);color:#dcd7de;
      font-size:13px;font-weight:700;
    }
    .badge.mint{background:rgba(52,211,164,.1);border-color:rgba(52,211,164,.26);color:#b9ffe9}
    .badge.orange{background:rgba(255,122,69,.12);border-color:rgba(255,122,69,.28);color:#ffd9ca}
    .badge.amber{background:rgba(245,184,75,.1);border-color:rgba(245,184,75,.28);color:#ffe4a4}
    .hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:650px}
    .metric{
      padding:16px;border-radius:18px;background:rgba(255,255,255,.055);border:1px solid var(--border);
    }
    .metric strong{display:block;color:#fff;font-size:20px;line-height:1.2;margin-bottom:4px}
    .metric span{display:block;color:var(--muted);font-size:13px;line-height:1.5}

    .cinema-card{
      position:relative;border-radius:32px;background:linear-gradient(180deg,rgba(36,31,45,.92),rgba(29,25,36,.96));
      border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow);padding:16px;overflow:hidden;
    }
    .cinema-card::before{
      content:"";position:absolute;inset:-1px;border-radius:32px;padding:1px;
      background:linear-gradient(135deg,rgba(255,122,69,.55),rgba(52,211,164,.25),transparent 60%);
      -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
      -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
    }
    .preview-window{
      position:relative;aspect-ratio:16/10;border-radius:24px;overflow:hidden;background:#0d0b10;
    }
    .preview-window img{width:100%;height:100%;object-fit:cover;opacity:.78;transform:scale(1.02)}
    .preview-window::after{
      content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.12),rgba(0,0,0,.58));
    }
    .preview-top{
      position:absolute;z-index:2;left:16px;right:16px;top:16px;display:flex;align-items:center;justify-content:space-between;gap:10px;
    }
    .status-pill{
      display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border-radius:999px;
      background:rgba(15,14,19,.72);border:1px solid rgba(255,255,255,.14);color:#fff;font-size:12px;font-weight:750;
      backdrop-filter:blur(12px);
    }
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--secondary);box-shadow:0 0 0 5px rgba(52,211,164,.13)}
    .play-visual{
      position:absolute;z-index:3;left:50%;top:50%;transform:translate(-50%,-50%);
      width:78px;height:78px;border-radius:50%;display:grid;place-items:center;
      background:rgba(255,122,69,.92);box-shadow:0 16px 46px rgba(255,122,69,.35);
    }
    .play-visual::before{
      content:"";width:0;height:0;border-top:13px solid transparent;border-bottom:13px solid transparent;border-left:20px solid #180f0b;margin-left:5px;
    }
    .preview-caption{
      position:absolute;z-index:2;left:20px;right:20px;bottom:18px;
      display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
    }
    .preview-caption h2{font-size:22px;line-height:1.25;color:#fff;margin-bottom:6px}
    .preview-caption p{font-size:13px;color:#d8d1da;line-height:1.55;max-width:360px}
    .quality-tag{padding:9px 11px;border-radius:13px;background:rgba(52,211,164,.14);border:1px solid rgba(52,211,164,.26);color:#c8ffed;font-weight:850;font-size:13px}
    .signal-list{display:grid;gap:11px;margin-top:14px}
    .signal{
      display:grid;grid-template-columns:86px 1fr auto;gap:12px;align-items:center;
      padding:12px;border-radius:17px;background:rgba(255,255,255,.045);border:1px solid var(--border);
    }
    .signal span{font-size:13px;color:var(--muted);font-weight:700}
    .bar{height:7px;border-radius:999px;background:rgba(255,255,255,.09);overflow:hidden}
    .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
    .signal em{font-style:normal;font-size:12px;color:#fff;padding:5px 8px;border-radius:999px;background:rgba(255,255,255,.08)}

    .notice-strip{margin-top:-34px;position:relative;z-index:4}
    .notice-card{
      display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
      padding:18px 20px;border-radius:22px;background:rgba(29,25,36,.94);border:1px solid var(--border-strong);box-shadow:var(--shadow-soft);
    }
    .notice-icon{width:48px;height:48px;border-radius:16px;background:rgba(245,184,75,.13);color:#ffe0a1;display:grid;place-items:center;font-weight:900;font-size:20px}
    .notice-card p{color:#d8d3da;font-size:15px}
    .notice-card strong{color:#fff}

    .value-grid{
      display:grid;grid-template-columns:1.2fr .8fr;grid-template-rows:auto auto;gap:20px;
    }
    .feature-card{
      position:relative;overflow:hidden;border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(29,25,36,.95),rgba(25,21,31,.95));
      border:1px solid var(--border);padding:26px;box-shadow:var(--shadow-soft);
      transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
    }
    .feature-card:hover{transform:translateY(-3px);border-color:rgba(255,122,69,.38);box-shadow:0 24px 60px rgba(0,0,0,.34)}
    .feature-card.large{grid-row:span 2;min-height:410px;padding:0}
    .feature-image{position:relative;height:245px;overflow:hidden}
    .feature-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
    .feature-card:hover .feature-image img{transform:scale(1.05)}
    .feature-image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(29,25,36,.94))}
    .feature-body{padding:26px;position:relative}
    .icon-box{
      width:48px;height:48px;border-radius:16px;display:grid;place-items:center;margin-bottom:18px;
      background:rgba(52,211,164,.11);border:1px solid rgba(52,211,164,.24);color:#baffea;
    }
    .icon-box svg{width:24px;height:24px;stroke:currentColor}
    .feature-card h3{font-size:23px;line-height:1.3;margin-bottom:10px;color:#fff}
    .feature-card p{color:var(--muted);font-size:15px;line-height:1.8}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
    .mini-tag{font-size:12px;font-weight:800;color:#cfc8d4;background:rgba(255,255,255,.055);border:1px solid var(--border);border-radius:999px;padding:5px 9px}
    .wide-tip{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:20px;border-radius:24px;padding:20px 24px;background:linear-gradient(90deg,rgba(255,122,69,.14),rgba(52,211,164,.08));border:1px solid rgba(255,255,255,.13)}
    .wide-tip p{color:#dfdae2}
    .wide-tip strong{color:#fff}

    .latest-wrap{
      display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:22px;align-items:stretch;
    }
    .post-card{
      position:relative;display:flex;flex-direction:column;gap:14px;min-height:100%;
      padding:22px;border-radius:var(--radius-lg);background:rgba(29,25,36,.94);
      border:1px solid var(--border);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
      overflow:hidden;
    }
    .post-card:hover{transform:translateY(-3px);border-color:rgba(52,211,164,.38);box-shadow:var(--shadow-soft)}
    .post-cover{
      position:relative;aspect-ratio:16/10;border-radius:20px;overflow:hidden;background:linear-gradient(135deg,rgba(255,122,69,.18),rgba(52,211,164,.12));
      margin-bottom:2px;
    }
    .post-cover img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:transform .45s var(--ease)}
    .post-card:hover .post-cover img{transform:scale(1.05)}
    .post-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.42))}
    .post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted-2);font-size:13px;font-weight:700}
    .post-category{color:#baffea;background:rgba(52,211,164,.1);border:1px solid rgba(52,211,164,.23);border-radius:999px;padding:4px 9px}
    .post-card h3{font-size:23px;line-height:1.35;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .post-card:hover h3{color:#ffb18b}
    .post-card p{color:var(--muted);font-size:15px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
    .post-card.featured{padding:16px}
    .post-card.featured .post-text{padding:0 6px 6px}
    .post-list{display:grid;gap:14px}
    .post-row{
      display:grid;grid-template-columns:116px 1fr;gap:16px;align-items:center;
      padding:14px;border-radius:22px;background:rgba(29,25,36,.78);border:1px solid var(--border);
      transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
    }
    .post-row:hover{transform:translateY(-2px);border-color:rgba(255,122,69,.34);background:rgba(36,31,45,.9)}
    .post-thumb{aspect-ratio:4/3;border-radius:16px;overflow:hidden;background:linear-gradient(135deg,rgba(255,122,69,.18),rgba(52,211,164,.12))}
    .post-thumb img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:transform .42s var(--ease)}
    .post-row:hover .post-thumb img{transform:scale(1.06)}
    .post-row h3{font-size:18px;line-height:1.35;margin:7px 0 5px;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .post-row:hover h3{color:var(--secondary)}
    .post-row p{color:var(--muted);font-size:14px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .empty-state{
      grid-column:1/-1;text-align:center;padding:46px 24px;border-radius:var(--radius-xl);
      background:rgba(29,25,36,.86);border:1px dashed rgba(232,229,223,.22);
    }
    .empty-icon{width:68px;height:68px;border-radius:24px;display:grid;place-items:center;margin:0 auto 16px;background:rgba(255,122,69,.12);color:#ffd8c6;font-size:28px}
    .empty-state p{color:var(--muted);margin:8px 0 18px}

    .scenario{
      background:
        radial-gradient(circle at 14% 22%,rgba(52,211,164,.09),transparent 30%),
        linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,0));
    }
    .scenario-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:30px;align-items:center}
    .device-panel{
      position:relative;border-radius:32px;background:var(--paper);color:var(--paper-text);padding:22px;box-shadow:var(--shadow);overflow:hidden;
    }
    .device-panel::before{
      content:"";position:absolute;right:-50px;top:-50px;width:180px;height:180px;border-radius:50%;background:rgba(255,122,69,.18);
    }
    .device-screen{
      position:relative;border-radius:24px;background:#17131d;padding:14px;border:8px solid #2d2734;overflow:hidden;
    }
    .device-screen img{height:280px;width:100%;object-fit:cover;border-radius:18px;opacity:.8}
    .device-screen::after{content:"";position:absolute;inset:14px;border-radius:18px;background:linear-gradient(180deg,rgba(0,0,0,.12),rgba(0,0,0,.55))}
    .floating-note{
      position:absolute;left:42px;bottom:42px;right:42px;z-index:3;border-radius:18px;padding:16px;
      background:rgba(255,255,255,.88);backdrop-filter:blur(14px);box-shadow:0 18px 34px rgba(0,0,0,.18);
    }
    .floating-note strong{display:block;color:#211b24;margin-bottom:4px}
    .floating-note span{display:block;color:#5f5666;font-size:14px;line-height:1.6}
    .scenario-list{display:grid;gap:14px}
    .scenario-item{
      display:grid;grid-template-columns:48px 1fr;gap:14px;align-items:start;padding:18px;border-radius:22px;
      background:rgba(29,25,36,.84);border:1px solid var(--border);transition:border-color .22s var(--ease),transform .22s var(--ease);
    }
    .scenario-item:hover{border-color:rgba(52,211,164,.34);transform:translateX(3px)}
    .scenario-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:rgba(255,122,69,.12);color:#ffd2bf;font-size:20px}
    .scenario-item h3{font-size:18px;color:#fff;line-height:1.3;margin-bottom:4px}
    .scenario-item p{color:var(--muted);font-size:14px;line-height:1.65}

    .guide-timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .guide-timeline::before{
      content:"";position:absolute;left:7%;right:7%;top:39px;height:2px;background:linear-gradient(90deg,rgba(255,122,69,.42),rgba(52,211,164,.3));z-index:0;
    }
    .step-card{
      position:relative;z-index:1;padding:22px;border-radius:var(--radius-lg);background:rgba(29,25,36,.92);border:1px solid var(--border);
      transition:transform .22s var(--ease),border-color .22s var(--ease);
    }
    .step-card:hover{transform:translateY(-3px);border-color:rgba(255,122,69,.34)}
    .step-num{
      width:36px;height:36px;border-radius:999px;display:grid;place-items:center;margin-bottom:24px;
      background:linear-gradient(135deg,var(--primary),#ffb089);color:#20100a;font-weight:900;box-shadow:0 10px 22px rgba(255,122,69,.22);
    }
    .step-card h3{font-size:19px;color:#fff;margin-bottom:8px}
    .step-card p{font-size:14px;color:var(--muted);line-height:1.7}

    .trust-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:stretch}
    .trust-panel{
      border-radius:var(--radius-xl);padding:28px;background:linear-gradient(145deg,rgba(255,122,69,.14),rgba(29,25,36,.96) 55%);
      border:1px solid rgba(255,122,69,.22);box-shadow:var(--shadow-soft);
    }
    .trust-panel h2{font-size:30px;line-height:1.25;margin:14px 0 12px}
    .trust-panel p{color:#d6d0d8}
    .check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .check-card{
      padding:18px;border-radius:22px;background:rgba(29,25,36,.84);border:1px solid var(--border);
    }
    .check-card strong{display:flex;align-items:center;gap:8px;color:#fff;font-size:17px;margin-bottom:8px}
    .check-card strong::before{content:"✓";display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:rgba(52,211,164,.14);color:#8cf1d1;font-size:13px}
    .check-card p{color:var(--muted);font-size:14px;line-height:1.68}

    .faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:30px;align-items:start}
    .faq-aside{
      position:sticky;top:104px;border-radius:var(--radius-xl);padding:28px;background:rgba(36,31,45,.78);border:1px solid var(--border);
    }
    .faq-aside p{color:var(--muted);margin-top:12px}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border-radius:22px;background:rgba(29,25,36,.88);border:1px solid var(--border);overflow:hidden;
      transition:border-color .22s var(--ease),background .22s var(--ease);
    }
    .faq-item[open]{border-color:rgba(52,211,164,.36);background:rgba(36,31,45,.9)}
    .faq-item summary{
      list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:19px 20px;cursor:pointer;font-size:17px;font-weight:800;color:#fff;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";width:30px;height:30px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;
      background:rgba(255,255,255,.06);color:#ffd4c2;transition:transform .22s var(--ease),background .22s var(--ease);
    }
    .faq-item[open] summary::after{content:"−";background:rgba(52,211,164,.13);color:#baffea;transform:rotate(180deg)}
    .faq-answer{padding:0 20px 20px;color:var(--muted);font-size:15px;line-height:1.85}

    .cta-card{
      position:relative;overflow:hidden;border-radius:34px;padding:42px;
      background:
        linear-gradient(120deg,rgba(255,122,69,.92),rgba(64,39,49,.92) 48%,rgba(29,25,36,.95)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.14);
      display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
    }
    .cta-card::after{content:"";position:absolute;right:-80px;bottom:-130px;width:360px;height:360px;border-radius:50%;background:rgba(52,211,164,.18);filter:blur(6px)}
    .cta-content{position:relative;z-index:2}
    .cta-card h2{font-size:34px;line-height:1.22;color:#fff;margin-bottom:12px}
    .cta-card p{color:#ffe8dc;max-width:690px}
    .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
    .cta-card .btn-secondary{background:rgba(17,16,21,.35);border-color:rgba(255,255,255,.22)}

    .site-footer{
      border-top:1px solid rgba(232,229,223,.09);background:#0d0c11;padding:54px 0 24px;
    }
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:34px;margin-bottom:34px}
    .footer-brand{display:flex;align-items:center;gap:12px;font-weight:850;color:#fff;margin-bottom:14px}
    .footer-about p{color:var(--muted);max-width:520px;font-size:14px;line-height:1.8}
    .footer-col h3{font-size:15px;color:#fff;margin-bottom:14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:var(--muted);font-size:14px}
    .footer-links a:hover{color:var(--secondary);transform:translateX(2px)}
    .footer-bottom{
      display:flex;justify-content:space-between;gap:16px;align-items:center;flex-wrap:wrap;
      padding-top:22px;border-top:1px solid rgba(232,229,223,.08);color:var(--muted-2);font-size:13px;
    }
    .footer-bottom a:hover{color:var(--primary)}

    @media (max-width:1080px){
      .container{width:min(100% - 32px,var(--container))}
      .hero{min-height:auto;padding:72px 0 62px}
      .hero-inner{grid-template-columns:1fr;gap:32px}
      .hero-copy{max-width:820px}
      .cinema-card{max-width:760px}
      .value-grid,.latest-wrap,.scenario-grid,.trust-grid,.faq-grid{grid-template-columns:1fr}
      .guide-timeline{grid-template-columns:repeat(2,1fr)}
      .guide-timeline::before{display:none}
      .faq-aside{position:relative;top:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:820px){
      :root{--header-h:70px}
      .section{padding:64px 0}
      .section-head{display:block}
      .section-title{font-size:28px;margin-top:12px}
      .section-desc{margin-top:10px}
      .brand-text{font-size:16px}
      .nav-links{
        position:absolute;left:16px;right:16px;top:calc(var(--header-h) + 8px);
        display:none;flex-direction:column;align-items:stretch;padding:12px;border-radius:22px;
        background:rgba(17,16,21,.96);border:1px solid var(--border);box-shadow:var(--shadow);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{padding:13px 14px}
      .header-actions .btn{display:none}
      .menu-toggle{display:block}
      .hero h1{font-size:39px}
      .hero-subtitle{font-size:16px}
      .hero-metrics{grid-template-columns:1fr}
      .notice-card{grid-template-columns:1fr;text-align:left}
      .wide-tip{display:block}
      .wide-tip .btn-link{margin-top:12px}
      .post-row{grid-template-columns:96px 1fr}
      .scenario-item{grid-template-columns:42px 1fr}
      .guide-timeline,.check-grid{grid-template-columns:1fr}
      .cta-card{grid-template-columns:1fr;padding:30px}
      .cta-card h2{font-size:27px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .container{width:min(100% - 28px,var(--container))}
      .hero{padding:54px 0 48px}
      .hero h1{font-size:32px;letter-spacing:-.03em}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .cinema-card{border-radius:24px;padding:11px}
      .preview-window{border-radius:18px}
      .preview-caption{display:block}
      .quality-tag{display:inline-flex;margin-top:10px}
      .play-visual{width:62px;height:62px}
      .signal{grid-template-columns:1fr;gap:7px}
      .feature-card,.feature-card.large,.post-card,.faq-item,.step-card,.trust-panel{border-radius:20px}
      .feature-image{height:190px}
      .post-row{grid-template-columns:1fr}
      .post-thumb{aspect-ratio:16/9}
      .device-panel{padding:14px;border-radius:24px}
      .device-screen img{height:230px}
      .floating-note{left:25px;right:25px;bottom:28px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:8px}
    }

/* roulang page: article */
:root{
      --bg:#111015;
      --bg-2:#17131d;
      --panel:#1d1924;
      --panel-2:#241f2d;
      --panel-3:#2a2430;
      --paper:#f7f3ea;
      --paper-2:#fffaf0;
      --paper-text:#28232b;
      --text:#e8e5df;
      --muted:#a7a1aa;
      --muted-2:#7f7786;
      --border:rgba(232,229,223,.12);
      --border-strong:rgba(232,229,223,.22);
      --primary:#ff7a45;
      --primary-2:#ff9b6f;
      --secondary:#34d3a4;
      --warning:#f5b84b;
      --shadow:0 24px 60px rgba(0,0,0,.32);
      --shadow-soft:0 18px 42px rgba(0,0,0,.22);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --header-h:78px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      background:
        radial-gradient(circle at 10% 4%, rgba(255,122,69,.15), transparent 34%),
        radial-gradient(circle at 84% 8%, rgba(52,211,164,.13), transparent 30%),
        linear-gradient(180deg,var(--bg) 0%,#141119 46%,#0f0e13 100%);
      color:var(--text);
      line-height:1.75;
      overflow-x:hidden;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;background:none;color:inherit;cursor:pointer}
    input{border:0;outline:0}
    ::selection{background:rgba(255,122,69,.34);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:82px 0;position:relative}
    .section-tight{padding:52px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      min-height:30px;padding:5px 12px;border-radius:999px;
      color:#ffe7da;background:rgba(255,122,69,.13);
      border:1px solid rgba(255,122,69,.28);
      font-size:13px;font-weight:700;letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";width:7px;height:7px;border-radius:999px;background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,122,69,.12);
    }
    .site-header{
      position:sticky;top:0;z-index:1000;height:var(--header-h);
      backdrop-filter:blur(18px);
      background:rgba(17,16,21,.72);
      border-bottom:1px solid rgba(232,229,223,.09);
      transition:background .25s var(--ease),box-shadow .25s var(--ease);
    }
    .site-header.is-scrolled{background:rgba(17,16,21,.92);box-shadow:0 14px 34px rgba(0,0,0,.24)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content;font-weight:850;letter-spacing:-.02em}
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      background:linear-gradient(135deg,var(--primary),#ffb089 58%,var(--secondary));
      display:grid;place-items:center;box-shadow:0 14px 32px rgba(255,122,69,.22);
      position:relative;overflow:hidden;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 #151119;margin-left:3px;z-index:2;
    }
    .brand-mark::after{
      content:"";position:absolute;inset:-28%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);
      transform:rotate(28deg) translateX(-140%);animation:shine 5s infinite;
    }
    @keyframes shine{0%,42%{transform:rotate(28deg) translateX(-140%)}56%,100%{transform:rotate(28deg) translateX(140%)}}
    .brand-text{font-size:18px;color:#fff}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-links a{padding:10px 13px;border-radius:999px;color:var(--muted);font-size:14px;font-weight:650}
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.07)}
    .header-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;width:46px;height:46px;border-radius:14px;border:1px solid var(--border);
      background:rgba(255,255,255,.05);
    }
    .menu-toggle span{display:block;width:18px;height:2px;background:#fff;margin:5px auto;border-radius:2px;transition:.22s var(--ease)}
    .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
    .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:13px 20px;border-radius:999px;
      font-size:15px;font-weight:800;line-height:1;border:1px solid transparent;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
      white-space:nowrap;
    }
    .btn-primary{color:#180f0b;background:linear-gradient(135deg,var(--primary),#ffac7c);box-shadow:0 14px 30px rgba(255,122,69,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(255,122,69,.32);background:linear-gradient(135deg,#ff6b32,#ffc09b);color:#160d09}
    .btn-secondary{color:var(--text);background:rgba(255,255,255,.045);border-color:var(--border)}
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(52,211,164,.55);color:#fff;background:rgba(52,211,164,.08)}
    .btn-link{
      display:inline-flex;align-items:center;gap:8px;color:#ffd8c6;font-weight:800;font-size:14px;
      text-decoration:none;
    }
    .btn-link .arrow{transition:transform .22s var(--ease)}
    .btn-link:hover{color:var(--secondary)}
    .btn-link:hover .arrow{transform:translateX(4px)}
    .article-banner{
      position:relative;
      padding:66px 0 42px;
      overflow:hidden;
      border-bottom:1px solid rgba(232,229,223,.08);
    }
    .article-banner::before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(17,16,21,.96),rgba(17,16,21,.78) 54%,rgba(17,16,21,.94)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      opacity:.88;
    }
    .article-banner::after{
      content:"";position:absolute;left:8%;right:8%;bottom:-160px;height:240px;
      background:radial-gradient(ellipse at center,rgba(255,122,69,.18),transparent 70%);
      filter:blur(8px);
    }
    .article-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:44px;align-items:end}
    .breadcrumb{
      display:flex;align-items:center;gap:9px;flex-wrap:wrap;
      color:var(--muted);font-size:14px;margin-bottom:22px;
    }
    .breadcrumb a{color:#d7d1d8}
    .breadcrumb a:hover{color:var(--secondary)}
    .breadcrumb .sep{color:var(--muted-2)}
    .breadcrumb .current{max-width:520px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#fff}
    .article-kicker{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
    .badge{
      display:inline-flex;align-items:center;gap:7px;
      padding:7px 11px;border-radius:999px;
      background:rgba(52,211,164,.1);
      border:1px solid rgba(52,211,164,.25);
      color:#bff8e6;font-size:13px;font-weight:750;
    }
    .badge.orange{background:rgba(255,122,69,.13);border-color:rgba(255,122,69,.28);color:#ffe1d2}
    .badge.amber{background:rgba(245,184,75,.13);border-color:rgba(245,184,75,.3);color:#ffe3a5}
    .article-title{
      margin:0;
      max-width:850px;
      font-size:clamp(32px,4.2vw,54px);
      line-height:1.14;
      letter-spacing:-.035em;
      font-weight:850;
      color:#fff;
    }
    .article-summary{
      margin-top:22px;
      max-width:780px;
      padding:18px 20px;
      color:#d8d2da;
      background:rgba(29,25,36,.72);
      border:1px solid rgba(232,229,223,.13);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(10px);
      font-size:16px;
      line-height:1.85;
    }
    .meta-line{
      display:flex;align-items:center;gap:12px 18px;flex-wrap:wrap;
      margin-top:20px;color:var(--muted);font-size:14px;
    }
    .meta-line span{display:inline-flex;align-items:center;gap:7px}
    .meta-dot{width:6px;height:6px;border-radius:999px;background:var(--primary);box-shadow:0 0 0 5px rgba(255,122,69,.12)}
    .banner-card{
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:linear-gradient(180deg,rgba(36,31,45,.86),rgba(29,25,36,.92));
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .banner-cover{position:relative;aspect-ratio:4/3;overflow:hidden}
    .banner-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
    .banner-card:hover .banner-cover img{transform:scale(1.045)}
    .banner-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(17,16,21,.88))}
    .play-chip{
      position:absolute;left:18px;bottom:18px;z-index:2;
      display:flex;align-items:center;gap:10px;padding:10px 13px;border-radius:999px;
      background:rgba(17,16,21,.74);border:1px solid rgba(255,255,255,.16);
      color:#fff;font-size:13px;font-weight:800;backdrop-filter:blur(10px);
    }
    .play-chip i{
      width:28px;height:28px;border-radius:999px;background:var(--primary);position:relative;display:inline-block;
    }
    .play-chip i::before{
      content:"";position:absolute;left:11px;top:8px;width:0;height:0;
      border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:9px solid #1b1110;
    }
    .banner-card-body{padding:18px}
    .mini-status{display:grid;gap:10px}
    .status-row{display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--muted);font-size:13px}
    .status-bar{height:8px;flex:1;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
    .status-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 320px;
      gap:34px;
      align-items:start;
    }
    .article-main{
      min-width:0;
    }
    .reader-card{
      background:var(--paper);
      color:var(--paper-text);
      border-radius:var(--radius-xl);
      box-shadow:0 28px 72px rgba(0,0,0,.28);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.18);
    }
    .reader-toolbar{
      display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
      padding:18px 22px;
      background:linear-gradient(90deg,#fff7e9,#f3eadb);
      border-bottom:1px solid rgba(40,35,43,.1);
    }
    .reader-toolbar strong{font-size:15px;color:#332a31}
    .reader-tools{display:flex;gap:8px;flex-wrap:wrap}
    .tool-pill{
      padding:7px 10px;border-radius:999px;
      background:rgba(255,122,69,.12);
      color:#7e3a20;font-size:12px;font-weight:800;
    }
    .article-content{
      padding:42px 48px 50px;
      font-size:17px;
      line-height:1.92;
      word-break:break-word;
    }
    .article-content h2{
      margin:38px 0 16px;
      font-size:28px;line-height:1.28;font-weight:850;color:#211b24;
      letter-spacing:-.02em;
    }
    .article-content h3{
      margin:30px 0 12px;
      font-size:22px;line-height:1.35;font-weight:800;color:#2c2330;
    }
    .article-content h4{margin:26px 0 10px;font-size:19px;font-weight:800;color:#342a32}
    .article-content p{margin:0 0 20px}
    .article-content a{color:#c95727;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;font-weight:750}
    .article-content a:hover{color:#168b6c}
    .article-content ul,.article-content ol{margin:0 0 22px 1.35em;padding:0}
    .article-content li{margin:8px 0;padding-left:4px}
    .article-content blockquote{
      margin:28px 0;padding:18px 20px;
      background:#fff8ea;border-left:5px solid var(--primary);
      border-radius:0 16px 16px 0;color:#463941;
    }
    .article-content img{
      border-radius:18px;margin:28px auto;
      box-shadow:0 14px 32px rgba(40,35,43,.16);
    }
    .article-content figure{margin:30px 0}
    .article-content figcaption{text-align:center;color:#736976;font-size:14px;margin-top:10px}
    .article-content table{
      width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;
      overflow:hidden;border-radius:16px;border:1px solid rgba(40,35,43,.12);
      font-size:15px;
    }
    .article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid rgba(40,35,43,.1)}
    .article-content th{background:#efe4d2;color:#2b222b;font-weight:850}
    .article-content tr:last-child td{border-bottom:0}
    .not-found{
      padding:56px 32px;text-align:center;
      background:var(--paper);color:var(--paper-text);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
    }
    .not-found-icon{
      width:74px;height:74px;margin:0 auto 18px;border-radius:24px;
      background:linear-gradient(135deg,rgba(255,122,69,.22),rgba(52,211,164,.18));
      display:grid;place-items:center;
    }
    .not-found-icon::before{
      content:"";width:0;height:0;border-top:13px solid transparent;border-bottom:13px solid transparent;border-left:20px solid var(--primary);margin-left:5px;
    }
    .not-found h2{font-size:28px;margin:0 0 10px;color:#211b24}
    .not-found p{color:#635968;margin-bottom:24px}
    .side-stack{position:sticky;top:calc(var(--header-h) + 22px);display:grid;gap:18px}
    .side-card{
      background:linear-gradient(180deg,rgba(36,31,45,.86),rgba(29,25,36,.95));
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow-soft);
    }
    .side-card h2,.side-card h3{
      margin:0 0 14px;font-size:20px;line-height:1.35;font-weight:850;color:#fff;
    }
    .side-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .side-list{display:grid;gap:12px;margin-top:14px}
    .side-item{
      padding:14px;border-radius:16px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(232,229,223,.09);
      transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
    }
    .side-item:hover{transform:translateY(-2px);border-color:rgba(255,122,69,.38);background:rgba(255,122,69,.07)}
    .side-item strong{display:block;color:#fff;font-size:15px;line-height:1.45;margin-bottom:5px}
    .side-item span{display:block;color:var(--muted);font-size:13px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
    .tag-cloud span{
      display:inline-flex;padding:7px 10px;border-radius:999px;
      color:#c8f8e9;background:rgba(52,211,164,.1);
      border:1px solid rgba(52,211,164,.22);
      font-size:12px;font-weight:800;
    }
    .safe-note{
      display:flex;gap:14px;
      padding:18px;border-radius:var(--radius-lg);
      background:rgba(245,184,75,.11);
      border:1px solid rgba(245,184,75,.26);
      color:#ffe5aa;
    }
    .safe-note .icon{
      width:38px;height:38px;flex:0 0 auto;border-radius:14px;
      background:rgba(245,184,75,.18);display:grid;place-items:center;
      color:var(--warning);font-weight:900;
    }
    .safe-note h3{margin:0 0 5px;font-size:17px;color:#fff}
    .safe-note p{margin:0;color:#dacda8;font-size:14px;line-height:1.75}
    .more-section{
      padding-top:0;
    }
    .section-head{display:flex;justify-content:space-between;gap:32px;align-items:flex-end;margin-bottom:28px}
    .section-title{font-size:32px;line-height:1.22;font-weight:850;letter-spacing:-.02em;margin:0;color:#fff}
    .section-desc{max-width:620px;color:var(--muted);font-size:16px;margin:8px 0 0}
    .info-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .info-card{
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:linear-gradient(180deg,rgba(36,31,45,.88),rgba(29,25,36,.94));
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
    }
    .info-cover{position:relative;min-height:250px;background:#211b28;overflow:hidden}
    .info-cover img{width:100%;height:100%;min-height:250px;object-fit:cover;opacity:.78;transition:transform .45s var(--ease)}
    .info-card:hover .info-cover img{transform:scale(1.045)}
    .info-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(17,16,21,.08),rgba(17,16,21,.92))}
    .info-cover-text{position:absolute;left:24px;right:24px;bottom:22px;z-index:2}
    .info-cover-text h3{font-size:24px;line-height:1.28;font-weight:850;margin:10px 0 8px;color:#fff}
    .info-cover-text p{margin:0;color:#d4ced7}
    .check-list{display:grid;gap:14px;padding:24px}
    .check-item{display:flex;gap:12px;align-items:flex-start}
    .check-item i{
      width:24px;height:24px;border-radius:999px;flex:0 0 auto;
      background:rgba(52,211,164,.14);border:1px solid rgba(52,211,164,.32);
      position:relative;margin-top:3px;
    }
    .check-item i::before{
      content:"";position:absolute;left:7px;top:5px;width:8px;height:12px;
      border-right:2px solid var(--secondary);border-bottom:2px solid var(--secondary);
      transform:rotate(45deg);
    }
    .check-item strong{display:block;color:#fff;margin-bottom:2px}
    .check-item span{display:block;color:var(--muted);font-size:14px;line-height:1.7}
    .cta-card{
      position:relative;overflow:hidden;
      border-radius:var(--radius-xl);
      padding:34px;
      background:
        radial-gradient(circle at 14% 18%,rgba(255,255,255,.2),transparent 24%),
        linear-gradient(135deg,rgba(255,122,69,.96),rgba(49,35,48,.98) 58%,rgba(29,25,36,.98));
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.14);
    }
    .cta-card::after{
      content:"";position:absolute;right:-80px;top:-80px;width:240px;height:240px;border-radius:999px;
      background:rgba(52,211,164,.16);
    }
    .cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .cta-card h2{margin:0 0 8px;font-size:30px;line-height:1.25;font-weight:900;color:#fff}
    .cta-card p{margin:0;max-width:650px;color:#fff2e9}
    .site-footer{
      padding:56px 0 28px;
      background:#0d0c11;
      border-top:1px solid rgba(232,229,223,.1);
      position:relative;
    }
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:34px;margin-bottom:34px}
    .footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:850;font-size:18px;margin-bottom:14px}
    .footer-about p{margin:0;max-width:520px;color:var(--muted);font-size:14px;line-height:1.8}
    .footer-col h3{font-size:16px;margin:0 0 14px;color:#fff;font-weight:850}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:var(--muted);font-size:14px}
    .footer-links a:hover{color:var(--secondary);transform:translateX(3px)}
    .footer-bottom{
      padding-top:22px;border-top:1px solid rgba(232,229,223,.09);
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
      color:var(--muted-2);font-size:13px;
    }
    .focus-outline:focus-visible,
    a:focus-visible,
    button:focus-visible{
      outline:3px solid rgba(52,211,164,.55);
      outline-offset:3px;
      border-radius:12px;
    }
    @media (max-width:1100px){
      .article-hero-inner{grid-template-columns:1fr;align-items:start}
      .banner-card{max-width:520px}
      .article-layout{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
      .safe-note{grid-column:1/-1}
      .info-grid{grid-template-columns:1fr}
    }
    @media (max-width:900px){
      :root{--header-h:70px}
      .container{width:min(var(--container),calc(100% - 32px))}
      .header-actions .btn{display:none}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;left:16px;right:16px;top:calc(var(--header-h) + 10px);
        display:grid;gap:8px;padding:14px;
        background:rgba(17,16,21,.96);
        border:1px solid var(--border);
        border-radius:22px;
        box-shadow:var(--shadow);
        transform:translateY(-12px);
        opacity:0;pointer-events:none;
        transition:opacity .22s var(--ease),transform .22s var(--ease);
      }
      .nav-links.is-open{opacity:1;pointer-events:auto;transform:translateY(0)}
      .nav-links a{padding:13px 14px;border-radius:15px}
      .article-banner{padding:46px 0 34px}
      .article-summary{font-size:15px}
      .reader-toolbar{align-items:flex-start}
      .article-content{padding:34px 30px;font-size:16px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-about{grid-column:1/-1}
      .cta-inner{display:grid}
    }
    @media (max-width:680px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .brand-text{font-size:16px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .article-title{font-size:31px}
      .breadcrumb .current{max-width:260px}
      .article-kicker{gap:8px}
      .badge{font-size:12px}
      .meta-line{font-size:13px}
      .reader-card,.not-found,.cta-card,.info-card,.banner-card{border-radius:22px}
      .article-content{padding:28px 20px;line-height:1.88}
      .article-content h2{font-size:24px}
      .article-content h3{font-size:20px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .side-stack{grid-template-columns:1fr}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-title{font-size:27px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid}
      .cta-card{padding:26px 22px}
      .cta-card h2{font-size:25px}
    }
    @media (max-width:420px){
      .container{width:min(var(--container),calc(100% - 24px))}
      .article-title{font-size:28px}
      .article-summary{padding:16px}
      .reader-toolbar{padding:16px}
      .article-content{padding:24px 18px;font-size:15.8px}
      .btn{width:100%;white-space:normal}
      .cta-inner .btn{justify-self:stretch}
    }

/* 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}