/* roulang page: index */
:root{
      --bg:#11100f;
      --bg-soft:#181614;
      --panel:#201d1a;
      --panel-2:#27231f;
      --panel-3:#171412;
      --text:#f4efe7;
      --muted:#b8aea2;
      --muted-2:#8e8377;
      --amber:#d59b45;
      --amber-2:#f0bd6a;
      --red:#6e2d2c;
      --line:rgba(244,239,231,.11);
      --line-strong:rgba(213,155,69,.36);
      --shadow:0 18px 60px rgba(0,0,0,.34);
      --shadow-soft:0 12px 34px rgba(0,0,0,.24);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --font:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 18% 4%,rgba(213,155,69,.16),transparent 30%),
        radial-gradient(circle at 86% 12%,rgba(110,45,44,.22),transparent 28%),
        linear-gradient(180deg,#11100f 0%,#15120f 48%,#0d0c0b 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      pointer-events:none;
      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:54px 54px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 90%);
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      z-index:-1;
      pointer-events:none;
      opacity:.08;
      background:
        repeating-linear-gradient(90deg,transparent 0 18px,rgba(244,239,231,.15) 19px 20px,transparent 21px 38px);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0;background:none;color:inherit}
    ::selection{background:rgba(213,155,69,.36);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      min-height:30px;
      padding:5px 12px;
      border:1px solid var(--line-strong);
      border-radius:999px;
      background:rgba(213,155,69,.1);
      color:var(--amber-2);
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--amber);
      box-shadow:0 0 0 5px rgba(213,155,69,.12);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin-top:14px;
      font-size:clamp(28px,4vw,38px);
      line-height:1.18;
      letter-spacing:-.03em;
    }
    .section-desc{
      max-width:650px;
      margin-top:14px;
      color:var(--muted);
      font-size:16px;
    }
    .muted{color:var(--muted)}
    .badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      min-height:28px;
      padding:4px 11px;
      border-radius:999px;
      border:1px solid rgba(213,155,69,.25);
      background:rgba(213,155,69,.1);
      color:#efd0a0;
      font-size:12px;
      font-weight:700;
      white-space:nowrap;
    }
    .badge.dark{
      border-color:rgba(244,239,231,.12);
      background:rgba(255,255,255,.045);
      color:var(--muted);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:50px;
      padding:0 22px;
      border-radius:999px;
      font-weight:800;
      transition:transform .22s ease,border-color .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease;
      outline:none;
      white-space:nowrap;
    }
    .btn:focus-visible,
    .nav-link:focus-visible,
    .faq-toggle:focus-visible,
    .search-input:focus-visible{
      outline:3px solid rgba(213,155,69,.45);
      outline-offset:3px;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--amber),var(--amber-2));
      color:#1c140c;
      box-shadow:0 12px 30px rgba(213,155,69,.18);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(213,155,69,.28)}
    .btn-secondary{
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
      color:var(--text);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(213,155,69,.08)}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      min-height:72px;
      border-bottom:1px solid var(--line);
      background:rgba(17,16,15,.78);
      backdrop-filter:blur(18px);
    }
    .nav-wrap{
      min-height:72px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:-.02em;
      font-size:20px;
    }
    .brand-mark{
      position:relative;
      width:42px;
      height:42px;
      border-radius:14px;
      background:linear-gradient(145deg,#332820,#161311);
      border:1px solid rgba(213,155,69,.34);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04),0 10px 24px rgba(0,0,0,.25);
    }
    .brand-mark::before{
      content:"";
      position:absolute;
      left:14px;
      top:11px;
      border-left:15px solid var(--amber);
      border-top:9px solid transparent;
      border-bottom:9px solid transparent;
      filter:drop-shadow(0 0 12px rgba(213,155,69,.45));
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:6px;
      border-top:2px dotted rgba(244,239,231,.28);
      border-bottom:2px dotted rgba(244,239,231,.28);
      border-radius:9px;
    }
    .nav-menu{
      display:flex;
      align-items:center;
      gap:6px;
      margin-left:auto;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:44px;
      padding:0 14px;
      color:var(--muted);
      font-weight:700;
      font-size:14px;
      transition:color .2s ease,transform .2s ease;
      outline:none;
    }
    .nav-link:hover,.nav-link.active{color:var(--text);transform:translateY(-1px)}
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:5px;
      height:2px;
      border-radius:2px;
      background:var(--amber);
    }
    .nav-cta{margin-left:8px}
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
    }
    .menu-toggle span{
      display:block;
      width:20px;
      height:2px;
      margin:5px auto;
      border-radius:2px;
      background:var(--text);
      transition:.22s ease;
    }
    .hero{
      position:relative;
      min-height:760px;
      padding:92px 0 56px;
      display:flex;
      align-items:center;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(17,16,15,.92) 0%,rgba(17,16,15,.72) 45%,rgba(17,16,15,.2) 100%),
        linear-gradient(180deg,rgba(17,16,15,.35),#11100f 95%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      z-index:-2;
    }
    .hero::after{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:6%;
      top:18%;
      border-radius:50%;
      background:radial-gradient(circle,rgba(213,155,69,.22),transparent 66%);
      filter:blur(10px);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.02fr) minmax(360px,.78fr);
      gap:56px;
      align-items:center;
    }
    .hero-copy{max-width:720px}
    .hero h1{
      margin-top:18px;
      font-size:clamp(36px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.045em;
    }
    .hero-lead{
      margin-top:22px;
      max-width:650px;
      color:#d8cec2;
      font-size:18px;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:30px;
    }
    .hero-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:28px;
    }
    .trust-note{
      margin-top:26px;
      padding:16px 18px;
      border-left:3px solid var(--amber);
      border-radius:0 16px 16px 0;
      background:rgba(32,29,26,.7);
      color:var(--muted);
      font-size:14px;
    }
    .hero-visual{
      position:relative;
      min-height:520px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid rgba(244,239,231,.16);
      box-shadow:var(--shadow);
      background:#211c18;
      transform:rotate(1.2deg);
    }
    .hero-visual img{
      width:100%;
      height:100%;
      min-height:520px;
      object-fit:cover;
      filter:saturate(.88) contrast(1.06);
    }
    .hero-visual::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.72));
      z-index:1;
    }
    .hero-visual::after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      top:18px;
      bottom:18px;
      z-index:2;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.12);
      pointer-events:none;
    }
    .visual-caption{
      position:absolute;
      z-index:3;
      left:28px;
      right:28px;
      bottom:28px;
      padding:22px;
      border-radius:22px;
      background:rgba(17,16,15,.72);
      backdrop-filter:blur(14px);
      border:1px solid rgba(244,239,231,.14);
    }
    .visual-caption strong{
      display:block;
      font-size:22px;
      line-height:1.35;
      margin-bottom:8px;
    }
    .visual-caption p{color:var(--muted);font-size:14px}
    .quick-strip{
      margin-top:48px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
    }
    .quick-item{
      padding:18px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(32,29,26,.7);
      backdrop-filter:blur(12px);
    }
    .quick-item b{
      display:block;
      margin-bottom:4px;
      color:var(--amber-2);
      font-size:15px;
    }
    .quick-item span{font-size:13px;color:var(--muted)}
    .guide-layout{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:26px;
      align-items:stretch;
    }
    .timeline{
      position:relative;
      padding:28px;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(39,35,31,.88),rgba(26,23,20,.9));
      box-shadow:var(--shadow-soft);
    }
    .timeline::before{
      content:"";
      position:absolute;
      left:39px;
      top:38px;
      bottom:38px;
      width:1px;
      background:linear-gradient(180deg,rgba(213,155,69,.7),rgba(244,239,231,.05));
    }
    .timeline-item{
      position:relative;
      padding-left:38px;
      padding-bottom:28px;
    }
    .timeline-item:last-child{padding-bottom:0}
    .timeline-dot{
      position:absolute;
      left:5px;
      top:8px;
      width:13px;
      height:13px;
      border-radius:50%;
      background:var(--amber);
      box-shadow:0 0 0 6px rgba(213,155,69,.12);
    }
    .timeline-item h3{font-size:20px;line-height:1.35}
    .timeline-item p{margin-top:8px;color:var(--muted);font-size:15px}
    .inline-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      margin-top:12px;
      color:var(--amber-2);
      font-size:14px;
      font-weight:800;
    }
    .inline-link:hover{text-decoration:underline;text-underline-offset:4px}
    .rail-cards{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .rail-card{
      min-height:238px;
      padding:26px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:
        linear-gradient(150deg,rgba(110,45,44,.22),transparent 55%),
        var(--panel);
      box-shadow:var(--shadow-soft);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .rail-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
    .rail-card .icon{
      width:46px;
      height:46px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:rgba(213,155,69,.12);
      color:var(--amber-2);
      font-size:22px;
      margin-bottom:18px;
    }
    .rail-card h3{font-size:22px;margin-bottom:10px}
    .rail-card p{color:var(--muted);font-size:15px}
    .feature-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
    }
    .feature-main{
      position:relative;
      min-height:520px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid var(--line);
      background:#1c1916;
      box-shadow:var(--shadow);
    }
    .feature-main img{
      width:100%;
      height:100%;
      min-height:520px;
      object-fit:cover;
    }
    .feature-main::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(0,0,0,.06),rgba(0,0,0,.78));
    }
    .feature-content{
      position:absolute;
      z-index:2;
      left:30px;
      right:30px;
      bottom:30px;
    }
    .tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:16px}
    .feature-content h3{
      max-width:720px;
      font-size:clamp(26px,3vw,36px);
      line-height:1.2;
      letter-spacing:-.02em;
      margin-bottom:14px;
    }
    .feature-content p{max-width:680px;color:#d6cabc}
    .side-list{
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .side-card{
      flex:1;
      padding:22px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:var(--panel);
      transition:.22s ease;
    }
    .side-card:hover{transform:translateX(4px);border-color:var(--line-strong);background:#29241f}
    .side-card h3{font-size:19px;line-height:1.4;margin:10px 0 8px}
    .side-card p{font-size:14px;color:var(--muted)}
    .side-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:14px;color:var(--muted-2);font-size:13px}
    .latest-wrap{
      display:grid;
      grid-template-columns:320px minmax(0,1fr);
      gap:26px;
      align-items:start;
    }
    .latest-panel{
      position:sticky;
      top:94px;
      padding:26px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        linear-gradient(180deg,rgba(213,155,69,.08),transparent 44%),
        var(--panel);
      box-shadow:var(--shadow-soft);
    }
    .latest-panel h3{font-size:23px;margin:14px 0 10px}
    .latest-panel p{color:var(--muted);font-size:15px}
    .search-box{
      margin-top:22px;
      display:flex;
      gap:10px;
      padding:8px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(0,0,0,.18);
    }
    .search-input{
      min-width:0;
      flex:1;
      height:44px;
      border:0;
      outline:none;
      color:var(--text);
      padding:0 12px;
      border-radius:12px;
      background:transparent;
    }
    .search-input::placeholder{color:#8e8377}
    .search-btn{
      min-width:44px;
      height:44px;
      border-radius:13px;
      background:var(--amber);
      color:#1b130c;
      font-weight:900;
      transition:.2s ease;
    }
    .search-btn:hover{background:var(--amber-2);transform:translateY(-1px)}
    .filter-tags{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-top:20px;
    }
    .post-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .post-card{
      min-height:238px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.018)),var(--panel);
      box-shadow:0 10px 28px rgba(0,0,0,.16);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background .22s ease;
      overflow:hidden;
    }
    .post-card:hover{
      transform:translateY(-4px);
      border-color:var(--line-strong);
      box-shadow:var(--shadow-soft);
      background:#28231f;
    }
    .post-card a{
      display:flex;
      flex-direction:column;
      height:100%;
      padding:24px;
    }
    .post-card h3{
      margin-top:14px;
      font-size:20px;
      line-height:1.42;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
      transition:color .2s ease;
    }
    .post-card:hover h3{color:var(--amber-2)}
    .post-card p{
      margin-top:12px;
      color:var(--muted);
      font-size:15px;
      line-height:1.78;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .post-footer{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:auto;
      padding-top:22px;
      color:var(--muted-2);
      font-size:13px;
    }
    .read-more{color:var(--amber-2);font-weight:800}
    .empty-state{
      grid-column:1/-1;
      padding:46px 28px;
      text-align:center;
      border:1px dashed rgba(213,155,69,.32);
      border-radius:var(--radius-xl);
      background:rgba(32,29,26,.7);
    }
    .empty-icon{
      width:60px;
      height:60px;
      margin:0 auto 18px;
      display:grid;
      place-items:center;
      border-radius:20px;
      background:rgba(213,155,69,.12);
      color:var(--amber-2);
      font-size:28px;
    }
    .empty-state h3{font-size:24px;margin-bottom:8px}
    .empty-state p{color:var(--muted);margin-bottom:20px}
    .notice{
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        linear-gradient(90deg,rgba(213,155,69,.13),transparent 44%),
        var(--panel-3);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .notice-inner{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:0;
    }
    .notice-item{
      padding:28px;
      border-left:1px solid var(--line);
    }
    .notice-item:first-child{border-left:4px solid var(--amber)}
    .notice-item h3{font-size:20px;margin-bottom:10px}
    .notice-item p{color:var(--muted);font-size:15px}
    .proof-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .proof-card{
      padding:24px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(32,29,26,.72);
    }
    .proof-card strong{
      display:block;
      color:var(--amber-2);
      font-size:30px;
      line-height:1;
      margin-bottom:12px;
    }
    .proof-card span{color:var(--muted);font-size:14px}
    .faq-list{
      display:grid;
      gap:14px;
      max-width:900px;
      margin:0 auto;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:20px;
      background:var(--panel);
      overflow:hidden;
      transition:.2s ease;
    }
    .faq-item:hover{border-color:rgba(213,155,69,.28)}
    .faq-toggle{
      width:100%;
      min-height:64px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 22px;
      text-align:left;
      font-weight:850;
      font-size:17px;
      outline:none;
    }
    .faq-toggle .plus{
      flex:0 0 auto;
      width:30px;
      height:30px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(213,155,69,.1);
      color:var(--amber-2);
      transition:.2s ease;
    }
    .faq-panel{
      display:none;
      padding:0 22px 22px;
      color:var(--muted);
      border-top:1px solid rgba(244,239,231,.07);
    }
    .faq-item.open{
      background:#29241f;
      border-color:var(--line-strong);
    }
    .faq-item.open .faq-panel{display:block}
    .faq-item.open .plus{transform:rotate(45deg);background:rgba(213,155,69,.18)}
    .cta-band{
      position:relative;
      overflow:hidden;
      padding:42px;
      border-radius:32px;
      border:1px solid rgba(213,155,69,.26);
      background:
        linear-gradient(135deg,rgba(110,45,44,.52),rgba(32,29,26,.9) 48%,rgba(213,155,69,.14)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .cta-band::before{
      content:"";
      position:absolute;
      inset:0;
      background:rgba(10,9,8,.68);
    }
    .cta-content{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .cta-content h2{
      font-size:clamp(28px,4vw,42px);
      line-height:1.18;
      margin-bottom:12px;
    }
    .cta-content p{max-width:680px;color:#d9cec1}
    .site-footer{
      border-top:1px solid var(--line);
      background:#0b0a09;
      padding:54px 0 28px;
      position:relative;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      top:0;
      left:0;
      right:0;
      height:6px;
      opacity:.26;
      background:repeating-linear-gradient(90deg,var(--amber) 0 14px,transparent 14px 28px);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:34px;
      margin-bottom:34px;
    }
    .footer-brand{font-size:22px;font-weight:900;margin-bottom:12px}
    .footer-text{color:var(--muted);max-width:520px;font-size:14px}
    .footer-col h3{font-size:15px;margin-bottom:12px;color:#eadfce}
    .footer-links{display:grid;gap:9px}
    .footer-links a,.footer-links span{
      color:var(--muted);
      font-size:14px;
      transition:.2s ease;
    }
    .footer-links a:hover{color:var(--amber-2);transform:translateX(2px)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:22px;
      border-top:1px solid rgba(244,239,231,.08);
      color:var(--muted-2);
      font-size:13px;
    }
    @media (max-width:1024px){
      .section{padding:78px 0}
      .hero{min-height:auto;padding:78px 0 48px}
      .hero-grid,.guide-layout,.feature-grid,.latest-wrap{grid-template-columns:1fr}
      .hero-visual{min-height:430px;transform:none}
      .hero-visual img{min-height:430px}
      .latest-panel{position:relative;top:auto}
      .proof-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .site-header{min-height:66px}
      .nav-wrap{min-height:66px}
      .menu-toggle{display:block}
      .nav-menu{
        position:fixed;
        left:14px;
        right:14px;
        top:76px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:4px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:22px;
        background:rgba(24,22,20,.96);
        box-shadow:var(--shadow);
      }
      .nav-menu.open{display:flex}
      .nav-link{justify-content:center}
      .nav-link.active::after{display:none}
      .nav-cta{display:none}
      .hero h1{font-size:36px}
      .hero-lead{font-size:16px}
      .hero-actions .btn{width:100%}
      .quick-strip,.rail-cards,.post-grid,.notice-inner{grid-template-columns:1fr}
      .notice-item{border-left:4px solid var(--amber);border-top:1px solid var(--line)}
      .notice-item:first-child{border-top:0}
      .section-head{display:block}
      .feature-main,.feature-main img{min-height:430px}
      .cta-content{display:block}
      .cta-content .btn{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .section{padding:62px 0}
      .brand{font-size:17px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .hero{padding-top:58px}
      .hero-visual,.hero-visual img,.feature-main,.feature-main img{min-height:360px}
      .visual-caption{left:18px;right:18px;bottom:18px;padding:18px}
      .quick-item,.timeline,.rail-card,.latest-panel,.post-card a,.notice-item,.proof-card,.cta-band{padding:20px}
      .proof-grid{grid-template-columns:1fr}
      .search-box{flex-direction:column}
      .search-btn{width:100%}
      .post-footer{align-items:flex-start;flex-direction:column}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --bg:#11100f;
      --bg-soft:#181614;
      --panel:#201d1a;
      --panel-2:#27231f;
      --panel-3:#171412;
      --text:#f4efe7;
      --muted:#b8aea2;
      --muted-2:#8e8377;
      --amber:#d59b45;
      --amber-2:#f0bd6a;
      --red:#6e2d2c;
      --line:rgba(244,239,231,.11);
      --line-strong:rgba(213,155,69,.36);
      --shadow:0 18px 60px rgba(0,0,0,.34);
      --shadow-soft:0 12px 34px rgba(0,0,0,.24);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --font:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 18% 4%,rgba(213,155,69,.16),transparent 30%),
        radial-gradient(circle at 86% 12%,rgba(110,45,44,.22),transparent 28%),
        linear-gradient(180deg,#11100f 0%,#15120f 48%,#0d0c0b 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      pointer-events:none;
      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:54px 54px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 90%);
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      z-index:-1;
      pointer-events:none;
      opacity:.08;
      background:repeating-linear-gradient(90deg,transparent 0 18px,rgba(244,239,231,.15) 19px 20px,transparent 21px 38px);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0;background:none;color:inherit}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .section{padding:92px 0}
    .section-tight{padding:68px 0}
    .muted{color:var(--muted)}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      min-height:30px;
      padding:5px 12px;
      border:1px solid var(--line-strong);
      border-radius:999px;
      background:rgba(213,155,69,.1);
      color:var(--amber-2);
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--amber);
      box-shadow:0 0 0 5px rgba(213,155,69,.12);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      min-height:28px;
      padding:4px 11px;
      border-radius:999px;
      border:1px solid rgba(213,155,69,.25);
      background:rgba(213,155,69,.1);
      color:#efd0a0;
      font-size:12px;
      font-weight:700;
      white-space:nowrap;
    }
    .badge.dark{
      border-color:rgba(244,239,231,.12);
      background:rgba(255,255,255,.045);
      color:var(--muted);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:50px;
      padding:0 22px;
      border-radius:999px;
      font-weight:800;
      transition:transform .22s ease,border-color .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease;
      outline:none;
      white-space:nowrap;
    }
    .btn:focus-visible,
    .nav-link:focus-visible,
    .faq-toggle:focus-visible,
    .article-body a:focus-visible{
      outline:3px solid rgba(213,155,69,.45);
      outline-offset:3px;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--amber),var(--amber-2));
      color:#1c140c;
      box-shadow:0 12px 30px rgba(213,155,69,.18);
      border:0;
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(213,155,69,.28);color:#1c140c}
    .btn-secondary{
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
      color:var(--text);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:var(--line-strong);background:rgba(213,155,69,.08);color:var(--text)}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      min-height:72px;
      border-bottom:1px solid var(--line);
      background:rgba(17,16,15,.78);
      backdrop-filter:blur(18px);
    }
    .nav-wrap{
      min-height:72px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:-.02em;
      font-size:20px;
      flex:0 0 auto;
    }
    .brand-mark{
      position:relative;
      width:42px;
      height:42px;
      border-radius:14px;
      background:linear-gradient(145deg,#332820,#161311);
      border:1px solid rgba(213,155,69,.34);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04),0 10px 24px rgba(0,0,0,.25);
    }
    .brand-mark::before{
      content:"";
      position:absolute;
      left:14px;
      top:11px;
      border-left:15px solid var(--amber);
      border-top:9px solid transparent;
      border-bottom:9px solid transparent;
      filter:drop-shadow(0 0 12px rgba(213,155,69,.45));
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:6px;
      border-top:2px dotted rgba(244,239,231,.28);
      border-bottom:2px dotted rgba(244,239,231,.28);
      border-radius:9px;
    }
    .nav-menu{
      display:flex;
      align-items:center;
      gap:6px;
      margin-left:auto;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:44px;
      padding:0 14px;
      color:var(--muted);
      font-weight:700;
      font-size:14px;
      transition:color .2s ease,transform .2s ease;
      outline:none;
    }
    .nav-link:hover,.nav-link.active{color:var(--text);transform:translateY(-1px)}
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:5px;
      height:2px;
      border-radius:99px;
      background:var(--amber);
      box-shadow:0 0 14px rgba(213,155,69,.45);
    }
    .header-cta{flex:0 0 auto}
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border:1px solid var(--line);
      border-radius:14px;
      background:rgba(255,255,255,.04);
      align-items:center;
      justify-content:center;
      transition:border-color .2s ease,background .2s ease;
    }
    .menu-toggle:hover{border-color:var(--line-strong);background:rgba(213,155,69,.08)}
    .menu-toggle span{
      display:block;
      width:20px;
      height:2px;
      border-radius:99px;
      background:var(--text);
      position:relative;
    }
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      position:absolute;
      left:0;
      width:20px;
      height:2px;
      border-radius:99px;
      background:var(--text);
      transition:transform .2s ease,top .2s ease;
    }
    .menu-toggle span::before{top:-7px}
    .menu-toggle span::after{top:7px}
    .menu-toggle[aria-expanded="true"] span{background:transparent}
    .menu-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
    .menu-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
    .article-hero{
      position:relative;
      padding:72px 0 50px;
      border-bottom:1px solid var(--line);
      overflow:hidden;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(17,16,15,.95) 0%,rgba(17,16,15,.72) 56%,rgba(17,16,15,.9) 100%),
        url("/assets/images/backpic/back-2.jpg") center/cover no-repeat;
      z-index:-2;
      opacity:.9;
    }
    .article-hero::after{
      content:"";
      position:absolute;
      inset:auto 0 0;
      height:150px;
      background:linear-gradient(180deg,transparent,var(--bg));
      z-index:-1;
    }
    .breadcrumb-line{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:28px;
      color:var(--muted-2);
      font-size:13px;
    }
    .breadcrumb-line a{
      color:var(--muted);
      transition:color .2s ease;
    }
    .breadcrumb-line a:hover{color:var(--amber-2)}
    .breadcrumb-line .sep{color:rgba(244,239,231,.28)}
    .article-head-grid{
      display:grid;
      grid-template-columns:minmax(0,1.04fr) minmax(340px,.64fr);
      gap:36px;
      align-items:end;
    }
    .article-title{
      margin:18px 0 0;
      max-width:880px;
      font-size:clamp(34px,5vw,56px);
      line-height:1.16;
      letter-spacing:-.045em;
      font-weight:900;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
      color:var(--muted);
      font-size:14px;
    }
    .article-meta span{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:4px 11px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.035);
    }
    .summary-card{
      margin-top:26px;
      padding:22px 24px;
      border:1px solid rgba(213,155,69,.28);
      border-left:4px solid var(--amber);
      border-radius:var(--radius-lg);
      background:rgba(32,29,26,.82);
      box-shadow:var(--shadow-soft);
      color:var(--muted);
    }
    .summary-card strong{
      display:block;
      margin-bottom:6px;
      color:var(--text);
      font-size:16px;
    }
    .cover-frame{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:linear-gradient(145deg,#2b241e,#15120f);
      box-shadow:var(--shadow);
      min-height:360px;
    }
    .cover-frame img{
      width:100%;
      height:100%;
      min-height:360px;
      object-fit:cover;
      opacity:.82;
      filter:saturate(.86) contrast(1.05);
    }
    .cover-frame::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg,transparent 0%,rgba(17,16,15,.12) 42%,rgba(17,16,15,.86) 100%),
        radial-gradient(circle at 24% 18%,rgba(213,155,69,.2),transparent 34%);
    }
    .cover-caption{
      position:absolute;
      left:22px;
      right:22px;
      bottom:20px;
      z-index:2;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      color:var(--muted);
      font-size:13px;
    }
    .main-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) minmax(280px,1fr);
      gap:42px;
      align-items:start;
    }
    .article-shell{
      min-width:0;
    }
    .article-card{
      padding:34px;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(32,29,26,.96),rgba(23,20,18,.98));
      box-shadow:var(--shadow-soft);
    }
    .article-body{
      color:#e7ded2;
      font-size:17px;
      line-height:1.9;
      word-break:break-word;
    }
    .article-body > *:first-child{margin-top:0}
    .article-body p{margin:0 0 1.22em}
    .article-body h2{
      position:relative;
      margin:2.15em 0 .9em;
      padding-left:16px;
      color:var(--text);
      font-size:clamp(24px,3vw,32px);
      line-height:1.25;
      letter-spacing:-.025em;
      font-weight:900;
    }
    .article-body h2::before{
      content:"";
      position:absolute;
      left:0;
      top:.18em;
      width:5px;
      height:1.05em;
      border-radius:99px;
      background:linear-gradient(180deg,var(--amber-2),var(--amber));
      box-shadow:0 0 16px rgba(213,155,69,.3);
    }
    .article-body h3{
      margin:1.75em 0 .72em;
      color:var(--text);
      font-size:22px;
      line-height:1.35;
      font-weight:850;
    }
    .article-body h4{
      margin:1.5em 0 .5em;
      color:#f0d8b1;
      font-size:18px;
      font-weight:800;
    }
    .article-body a{
      color:var(--amber-2);
      border-bottom:1px solid rgba(213,155,69,.35);
      transition:color .2s ease,border-color .2s ease;
    }
    .article-body a:hover{color:#ffe0a9;border-color:#ffe0a9}
    .article-body blockquote{
      margin:1.6em 0;
      padding:22px 24px;
      border-left:4px solid var(--amber);
      border-radius:0 var(--radius-md) var(--radius-md) 0;
      background:rgba(213,155,69,.08);
      color:#eadfd0;
    }
    .article-body ul,.article-body ol{
      margin:1em 0 1.3em;
      padding-left:1.35em;
    }
    .article-body li{margin:.42em 0}
    .article-body img{
      width:100%;
      margin:1.6em 0;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .article-body table{
      width:100%;
      margin:1.6em 0;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.025);
    }
    .article-body th,.article-body td{
      padding:13px 14px;
      border-bottom:1px solid var(--line);
      color:var(--muted);
      vertical-align:top;
    }
    .article-body th{
      color:var(--text);
      background:rgba(213,155,69,.08);
      font-weight:800;
    }
    .article-body tr:last-child td{border-bottom:0}
    .article-body hr{
      margin:2.1em 0;
      border:0;
      border-top:1px solid var(--line);
    }
    .article-body code{
      padding:.14em .36em;
      border:1px solid rgba(244,239,231,.12);
      border-radius:8px;
      background:rgba(0,0,0,.26);
      color:#f0bd6a;
      font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
      font-size:.92em;
    }
    .not-found-card{
      display:grid;
      place-items:center;
      min-height:360px;
      padding:42px 24px;
      text-align:center;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg,rgba(32,29,26,.96),rgba(23,20,18,.98));
      box-shadow:var(--shadow-soft);
    }
    .not-found-icon{
      width:72px;
      height:72px;
      display:grid;
      place-items:center;
      margin:0 auto 18px;
      border:1px solid rgba(213,155,69,.28);
      border-radius:24px;
      background:rgba(213,155,69,.09);
      color:var(--amber-2);
      font-size:32px;
    }
    .not-found-card h1{
      margin:0 0 10px;
      font-size:34px;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .not-found-card p{
      max-width:560px;
      margin:0 auto 24px;
      color:var(--muted);
    }
    .side-stack{
      position:sticky;
      top:94px;
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:24px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(32,29,26,.78);
      box-shadow:var(--shadow-soft);
    }
    .side-card h2,
    .side-card h3{
      margin:0 0 12px;
      color:var(--text);
      font-size:20px;
      line-height:1.35;
      font-weight:900;
    }
    .side-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .tip-list{
      display:grid;
      gap:12px;
      padding:0;
      margin:16px 0 0;
      list-style:none;
    }
    .tip-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:14px;
    }
    .tip-list li::before{
      content:"";
      flex:0 0 auto;
      width:8px;
      height:8px;
      margin-top:9px;
      border-radius:50%;
      background:var(--amber);
      box-shadow:0 0 0 5px rgba(213,155,69,.1);
    }
    .mini-link-card{
      display:block;
      padding:16px;
      border:1px solid var(--line);
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.035);
      transition:transform .22s ease,border-color .22s ease,background .22s ease;
    }
    .mini-link-card + .mini-link-card{margin-top:10px}
    .mini-link-card:hover{
      transform:translateY(-3px);
      border-color:var(--line-strong);
      background:rgba(213,155,69,.08);
    }
    .mini-link-card strong{
      display:block;
      margin-bottom:5px;
      color:var(--text);
      font-size:15px;
      line-height:1.45;
    }
    .mini-link-card span{
      color:var(--muted-2);
      font-size:13px;
    }
    .guide-strip{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .guide-panel{
      padding:30px;
      border:1px solid rgba(213,155,69,.26);
      border-left:5px solid var(--amber);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(213,155,69,.1),rgba(110,45,44,.1)),
        rgba(32,29,26,.82);
      box-shadow:var(--shadow-soft);
    }
    .guide-panel h2{
      margin:0 0 12px;
      font-size:clamp(26px,3.2vw,36px);
      line-height:1.22;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .guide-panel p{margin:0;color:var(--muted)}
    .guide-points{
      display:grid;
      gap:14px;
    }
    .guide-point{
      padding:20px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.035);
      transition:transform .22s ease,border-color .22s ease;
    }
    .guide-point:hover{transform:translateY(-3px);border-color:var(--line-strong)}
    .guide-point strong{
      display:block;
      margin-bottom:5px;
      color:var(--text);
      font-size:16px;
    }
    .guide-point span{
      display:block;
      color:var(--muted);
      font-size:14px;
    }
    .related-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .related-card{
      position:relative;
      min-height:260px;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:var(--panel);
      box-shadow:var(--shadow-soft);
      transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
    }
    .related-card:hover{
      transform:translateY(-5px);
      border-color:var(--line-strong);
      box-shadow:var(--shadow);
    }
    .related-card img{
      width:100%;
      height:142px;
      object-fit:cover;
      opacity:.82;
      filter:saturate(.88);
    }
    .related-card-body{
      padding:18px;
    }
    .related-card h3{
      margin:9px 0 8px;
      color:var(--text);
      font-size:18px;
      line-height:1.4;
      font-weight:900;
      transition:color .2s ease;
    }
    .related-card:hover h3{color:var(--amber-2)}
    .related-card p{
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
      margin:0 0 12px;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }
    .related-card .read-more{
      color:var(--amber-2);
      font-size:14px;
      font-weight:800;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin-top:14px;
      font-size:clamp(28px,4vw,38px);
      line-height:1.18;
      letter-spacing:-.03em;
      font-weight:900;
    }
    .section-desc{
      max-width:650px;
      margin-top:14px;
      color:var(--muted);
      font-size:16px;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:34px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(32,29,26,.82);
      overflow:hidden;
      transition:border-color .22s ease,background .22s ease;
    }
    .faq-item:hover{border-color:rgba(213,155,69,.28)}
    .faq-toggle{
      width:100%;
      min-height:62px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      text-align:left;
      color:var(--text);
      font-weight:850;
      outline:none;
    }
    .faq-toggle .icon{
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      border-radius:50%;
      background:rgba(213,155,69,.1);
      color:var(--amber-2);
      transition:transform .2s ease;
    }
    .faq-item.open{
      background:rgba(213,155,69,.055);
      border-color:var(--line-strong);
    }
    .faq-item.open .faq-toggle .icon{transform:rotate(45deg)}
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.open .faq-answer{display:block}
    .cta-card{
      position:relative;
      overflow:hidden;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      padding:38px;
      border:1px solid rgba(213,155,69,.28);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(213,155,69,.16),rgba(110,45,44,.16)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .cta-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(17,16,15,.88),rgba(17,16,15,.62));
    }
    .cta-card > *{position:relative;z-index:1}
    .cta-card h2{
      margin:0 0 10px;
      font-size:clamp(28px,3.4vw,40px);
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .cta-card p{margin:0;color:var(--muted);max-width:720px}
    .site-footer{
      padding:58px 0 26px;
      border-top:1px solid var(--line);
      background:
        linear-gradient(180deg,rgba(10,9,8,.62),#0a0908),
        repeating-linear-gradient(90deg,rgba(244,239,231,.04) 0 8px,transparent 8px 22px);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .7fr .7fr;
      gap:34px;
      padding-bottom:34px;
    }
    .footer-brand{
      margin-bottom:12px;
      color:var(--text);
      font-size:24px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .footer-text{
      max-width:560px;
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .footer-col h3{
      margin:0 0 14px;
      color:var(--text);
      font-size:16px;
      font-weight:850;
    }
    .footer-links{
      display:grid;
      gap:8px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-links a,
    .footer-links span{
      width:max-content;
      max-width:100%;
      transition:color .2s ease,transform .2s ease;
    }
    .footer-links a:hover{
      color:var(--amber-2);
      transform:translateX(2px);
    }
    .copyright{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-top:22px;
      border-top:1px solid var(--line);
      color:var(--muted-2);
      font-size:13px;
    }
    @media (max-width:1024px){
      .article-head-grid,
      .main-layout,
      .guide-strip,
      .faq-wrap{
        grid-template-columns:1fr;
      }
      .side-stack{
        position:static;
        grid-template-columns:repeat(2,1fr);
      }
      .cover-frame{min-height:300px}
      .cover-frame img{min-height:300px}
      .related-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .section{padding:64px 0}
      .section-tight{padding:52px 0}
      .site-header{min-height:66px}
      .nav-wrap{min-height:66px}
      .header-cta{display:none}
      .menu-toggle{display:flex}
      .nav-menu{
        position:absolute;
        left:14px;
        right:14px;
        top:74px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:4px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:20px;
        background:rgba(24,22,20,.98);
        box-shadow:var(--shadow);
      }
      .nav-menu.open{display:flex}
      .nav-link{
        min-height:48px;
        padding:0 14px;
        border-radius:14px;
      }
      .nav-link:hover,.nav-link.active{background:rgba(213,155,69,.08)}
      .nav-link.active::after{display:none}
      .article-hero{padding:48px 0 38px}
      .article-meta span{font-size:13px}
      .summary-card{padding:18px}
      .article-card{padding:24px 20px;border-radius:22px}
      .article-body{font-size:16px}
      .side-stack{grid-template-columns:1fr}
      .section-head{display:block}
      .related-grid{grid-template-columns:1fr}
      .cta-card{grid-template-columns:1fr;padding:28px 22px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:520px){
      .brand{font-size:17px;gap:9px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-mark::before{left:13px;top:10px}
      .article-title{font-size:32px}
      .article-card{padding:22px 16px}
      .cover-caption{left:16px;right:16px;bottom:16px;align-items:flex-start;flex-direction:column}
      .cover-frame,.cover-frame img{min-height:240px}
      .btn{width:100%;min-height:48px}
      .side-card,.guide-panel{padding:22px 18px}
      .article-body table{display:block;overflow-x:auto}
    }

/* 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}