/* roulang page: index */
:root{
      --ink:#1b1614;
      --ink-soft:#312722;
      --charcoal:#251d1a;
      --wine:#7a2632;
      --wine-dark:#5e1d27;
      --rose:#a35358;
      --copper:#c68a45;
      --copper-dark:#a76f31;
      --cream:#f7f0e6;
      --sand:#efe3d4;
      --taupe:#d9c9b7;
      --paper:#fffaf2;
      --muted:#75695f;
      --muted-2:#9a8b7d;
      --line:rgba(61,43,33,.14);
      --line-dark:rgba(255,244,232,.14);
      --shadow-sm:0 8px 24px rgba(36,25,19,.08);
      --shadow-md:0 18px 45px rgba(36,25,19,.14);
      --shadow-lg:0 28px 70px rgba(28,18,14,.22);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --container:1240px;
      --nav-h:76px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 10% 0%, rgba(198,138,69,.15), transparent 28%),
        linear-gradient(180deg,var(--cream) 0%,#fbf6ee 42%,var(--sand) 100%);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(198,138,69,.28);color:var(--ink)}
    :focus-visible{outline:3px solid rgba(198,138,69,.55);outline-offset:3px;border-radius:8px}

    .container{
      width:min(calc(100% - 40px),var(--container));
      margin-inline:auto;
    }
    .section{padding:86px 0}
    .section.tight{padding:58px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{
      color:var(--wine);
      font-size:14px;
      font-weight:800;
      letter-spacing:.08em;
      margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,3vw,44px);
      line-height:1.18;
      letter-spacing:-.03em;
      color:var(--ink);
      font-weight:900;
    }
    .section-desc{
      max-width:560px;
      color:var(--muted);
      font-size:16px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--wine);
      font-weight:800;
      border-bottom:1px solid transparent;
      transition:var(--ease);
    }
    .text-link:hover{color:var(--wine-dark);border-bottom-color:currentColor;transform:translateX(2px)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      padding:7px 12px;
      font-size:13px;
      font-weight:800;
      color:var(--wine-dark);
      background:rgba(122,38,50,.09);
      border:1px solid rgba(122,38,50,.13);
      white-space:nowrap;
    }
    .badge.dark{
      color:#ffe6c7;
      background:rgba(255,255,255,.1);
      border-color:rgba(255,255,255,.16);
    }
    .badge.gold{
      color:#4a3015;
      background:rgba(198,138,69,.18);
      border-color:rgba(198,138,69,.28);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 22px;
      border-radius:999px;
      font-weight:900;
      letter-spacing:.01em;
      transition:var(--ease);
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff8ee;
      background:linear-gradient(135deg,var(--wine) 0%,var(--wine-dark) 100%);
      box-shadow:0 14px 30px rgba(122,38,50,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(122,38,50,.32)}
    .btn-secondary{
      color:var(--ink);
      background:rgba(255,250,242,.72);
      border:1px solid rgba(61,43,33,.18);
    }
    .btn-secondary:hover{background:#fffaf2;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn-text{
      color:var(--wine);
      padding:8px 0;
      min-height:auto;
      border-radius:0;
    }
    .btn-text:hover{color:var(--wine-dark);transform:translateX(3px)}

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      min-height:var(--nav-h);
      background:rgba(247,240,230,.9);
      backdrop-filter:saturate(160%) blur(16px);
      border-bottom:1px solid rgba(61,43,33,.12);
    }
    .nav-wrap{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      letter-spacing:-.02em;
      color:var(--ink);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff5e7;
      font-weight:950;
      background:
        linear-gradient(135deg,rgba(198,138,69,.95),rgba(122,38,50,.95)),
        var(--wine);
      box-shadow:0 10px 24px rgba(122,38,50,.18);
    }
    .brand-name{
      font-size:18px;
      line-height:1.2;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      list-style:none;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:9px 15px;
      border-radius:999px;
      color:var(--ink-soft);
      font-weight:800;
      transition:var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{
      color:var(--wine-dark);
      background:rgba(122,38,50,.09);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(122,38,50,.08);
      color:var(--wine-dark);
      position:relative;
    }
    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      height:2px;
      background:currentColor;
      border-radius:999px;
      transition:var(--ease);
    }
    .menu-toggle span{top:21px}
    .menu-toggle::before{top:14px}
    .menu-toggle::after{top:28px}
    .menu-toggle.is-open span{opacity:0}
    .menu-toggle.is-open::before{top:21px;transform:rotate(45deg)}
    .menu-toggle.is-open::after{top:21px;transform:rotate(-45deg)}

    .hero{
      position:relative;
      padding:62px 0 76px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(247,240,230,.98) 0%,rgba(247,240,230,.9) 46%,rgba(37,29,26,.52) 100%),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      z-index:-2;
    }
    .hero::after{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:-180px;
      bottom:-250px;
      background:radial-gradient(circle,rgba(198,138,69,.22),transparent 68%);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);
      gap:52px;
      align-items:center;
    }
    .hero-copy{
      padding:32px 0;
    }
    .eyebrow-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:22px;
    }
    h1{
      font-size:clamp(40px,5.2vw,76px);
      line-height:1.04;
      letter-spacing:-.055em;
      font-weight:950;
      max-width:820px;
      color:var(--ink);
    }
    .hero-subtitle{
      margin-top:24px;
      max-width:720px;
      color:#5f5248;
      font-size:clamp(16px,1.35vw,20px);
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:34px;
    }
    .hero-note{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:12px;
      margin-top:26px;
      color:var(--muted);
      font-size:14px;
    }
    .hero-media{
      position:relative;
      min-height:520px;
    }
    .hero-card{
      position:absolute;
      inset:0 0 34px 36px;
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:var(--charcoal);
      box-shadow:var(--shadow-lg);
      border:1px solid rgba(255,255,255,.16);
    }
    .hero-card img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(.88) contrast(1.04);
    }
    .hero-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(27,22,20,.04) 0%,rgba(27,22,20,.72) 100%);
    }
    .hero-caption{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      z-index:2;
      padding:20px;
      border-radius:22px;
      background:rgba(27,22,20,.72);
      border:1px solid rgba(255,255,255,.14);
      color:#fff4e5;
      backdrop-filter:blur(10px);
    }
    .hero-caption strong{
      display:block;
      font-size:22px;
      line-height:1.3;
      margin-bottom:8px;
    }
    .hero-caption p{
      color:#dfd1c3;
      font-size:14px;
      line-height:1.7;
    }
    .side-ribbon{
      position:absolute;
      top:34px;
      left:0;
      z-index:3;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 17px;
      border-radius:999px;
      background:#fffaf2;
      border:1px solid rgba(61,43,33,.12);
      box-shadow:var(--shadow-sm);
      font-weight:900;
      color:var(--wine-dark);
    }
    .side-ribbon::before{
      content:"";
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--copper);
      box-shadow:0 0 0 6px rgba(198,138,69,.18);
    }

    .quick-strip{
      margin-top:-28px;
      position:relative;
      z-index:4;
    }
    .strip-panel{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      border-radius:var(--radius-lg);
      background:rgba(255,250,242,.92);
      border:1px solid rgba(61,43,33,.12);
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .strip-item{
      padding:24px 26px;
      border-right:1px solid rgba(61,43,33,.1);
    }
    .strip-item:last-child{border-right:0}
    .strip-item b{
      display:block;
      font-size:24px;
      color:var(--wine-dark);
      letter-spacing:-.02em;
      margin-bottom:5px;
    }
    .strip-item span{
      color:var(--muted);
      font-size:14px;
    }

    .feature-layout{
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);
      gap:26px;
      align-items:stretch;
    }
    .feature-main{
      min-height:520px;
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      background:var(--charcoal);
      box-shadow:var(--shadow-md);
      border:1px solid rgba(61,43,33,.12);
    }
    .feature-main img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.88;
      filter:saturate(.9) contrast(1.05);
    }
    .feature-main::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(27,22,20,.88) 0%,rgba(27,22,20,.42) 56%,rgba(27,22,20,.16) 100%);
    }
    .feature-content{
      position:absolute;
      left:34px;
      right:34px;
      bottom:34px;
      z-index:2;
      color:#fff6ea;
      max-width:560px;
    }
    .feature-content h2{
      font-size:clamp(28px,3vw,46px);
      line-height:1.16;
      letter-spacing:-.035em;
      margin:16px 0 14px;
    }
    .feature-content p{color:#eadbcb;margin-bottom:22px}
    .feature-stack{
      display:grid;
      gap:22px;
    }
    .mini-card{
      display:grid;
      grid-template-columns:150px minmax(0,1fr);
      gap:18px;
      align-items:center;
      padding:16px;
      border-radius:var(--radius-lg);
      background:rgba(255,250,242,.82);
      border:1px solid rgba(61,43,33,.12);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(198,138,69,.36)}
    .mini-card img{
      width:150px;
      height:128px;
      object-fit:cover;
      border-radius:20px;
      background:var(--taupe);
    }
    .mini-card h3{
      font-size:20px;
      line-height:1.35;
      margin:10px 0 8px;
      color:var(--ink);
    }
    .mini-card p{
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }

    .news-section{
      background:
        linear-gradient(180deg,rgba(37,29,26,.98),rgba(49,39,34,.96)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      color:#fff2e2;
      position:relative;
      overflow:hidden;
    }
    .news-section::before{
      content:"";
      position:absolute;
      inset:auto -120px -180px auto;
      width:440px;
      height:440px;
      border-radius:50%;
      background:rgba(198,138,69,.16);
      filter:blur(3px);
    }
    .news-section .section-title{color:#fff7eb}
    .news-section .section-desc{color:#cfc0b2}
    .news-section .section-kicker{color:#e0a762}
    .news-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
      position:relative;
      z-index:1;
    }
    .news-card{
      display:flex;
      flex-direction:column;
      min-height:230px;
      padding:24px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 16px 40px rgba(0,0,0,.16);
      transition:var(--ease);
    }
    .news-card:hover{
      transform:translateY(-4px);
      border-color:rgba(198,138,69,.44);
      background:rgba(255,255,255,.08);
    }
    .news-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:16px;
      color:#d7c7b8;
      font-size:13px;
    }
    .news-cat{
      color:#ffdfb0;
      background:rgba(198,138,69,.16);
      border:1px solid rgba(198,138,69,.24);
      border-radius:999px;
      padding:5px 10px;
      font-weight:800;
    }
    .news-card h3{
      color:#fff8ed;
      font-size:21px;
      line-height:1.42;
      margin-bottom:12px;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .news-card p{
      color:#cfc2b6;
      font-size:15px;
      line-height:1.78;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
      margin-bottom:20px;
    }
    .news-card .read-more{
      margin-top:auto;
      color:#f0b56c;
      font-weight:900;
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .empty-state{
      grid-column:1/-1;
      padding:38px 28px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.07);
      border:1px dashed rgba(255,255,255,.24);
      color:#e7d8c8;
      text-align:center;
      font-weight:800;
    }

    .topic-band{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:26px;
      align-items:stretch;
    }
    .topic-panel{
      border-radius:var(--radius-xl);
      padding:34px;
      background:var(--paper);
      border:1px solid rgba(61,43,33,.12);
      box-shadow:var(--shadow-sm);
    }
    .topic-panel.dark{
      background:linear-gradient(145deg,var(--ink) 0%,#32241e 100%);
      color:#fff3e4;
      border-color:rgba(255,255,255,.12);
    }
    .topic-panel.dark p{color:#d7c8b8}
    .topic-panel h2{
      font-size:clamp(26px,2.6vw,40px);
      line-height:1.22;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .topic-panel p{color:var(--muted)}
    .topic-list{
      display:grid;
      gap:14px;
      margin-top:26px;
    }
    .topic-item{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:17px 18px;
      border-radius:18px;
      background:rgba(255,250,242,.74);
      border:1px solid rgba(61,43,33,.1);
      transition:var(--ease);
    }
    .topic-item:hover{transform:translateX(3px);border-color:rgba(198,138,69,.32);box-shadow:var(--shadow-sm)}
    .topic-item strong{font-size:16px}
    .topic-item span{color:var(--muted);font-size:14px}
    .pill-list{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }

    .notice-grid{
      display:grid;
      grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
      gap:34px;
      align-items:center;
    }
    .notice-image{
      border-radius:var(--radius-xl);
      overflow:hidden;
      min-height:430px;
      background:var(--taupe);
      box-shadow:var(--shadow-md);
      position:relative;
    }
    .notice-image img{
      width:100%;
      height:100%;
      min-height:430px;
      object-fit:cover;
      filter:saturate(.9) contrast(1.04);
    }
    .notice-image::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 42%,rgba(27,22,20,.55));
    }
    .notice-content{
      padding:12px 0;
    }
    .notice-list{
      display:grid;
      gap:15px;
      margin-top:24px;
    }
    .notice-item{
      display:grid;
      grid-template-columns:42px minmax(0,1fr);
      gap:15px;
      padding:18px;
      border-radius:20px;
      background:rgba(255,250,242,.74);
      border:1px solid rgba(61,43,33,.1);
    }
    .notice-num{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:rgba(122,38,50,.1);
      color:var(--wine-dark);
      font-weight:950;
    }
    .notice-item h3{
      font-size:18px;
      margin-bottom:4px;
    }
    .notice-item p{
      color:var(--muted);
      font-size:14px;
    }

    .proof{
      padding:44px 0;
      background:rgba(255,250,242,.72);
      border-block:1px solid rgba(61,43,33,.1);
    }
    .proof-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .proof-card{
      padding:24px;
      border-radius:var(--radius-lg);
      background:#fffaf2;
      border:1px solid rgba(61,43,33,.11);
      box-shadow:var(--shadow-sm);
    }
    .proof-card strong{
      display:block;
      font-size:22px;
      color:var(--wine-dark);
      margin-bottom:8px;
    }
    .proof-card p{
      color:var(--muted);
      font-size:14px;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:34px;
      align-items:start;
    }
    .faq-intro{
      position:sticky;
      top:calc(var(--nav-h) + 24px);
      padding:30px;
      border-radius:var(--radius-xl);
      background:linear-gradient(145deg,#fffaf2 0%,#f0e1d0 100%);
      border:1px solid rgba(61,43,33,.11);
      box-shadow:var(--shadow-sm);
    }
    .faq-intro h2{
      font-size:clamp(28px,3vw,42px);
      line-height:1.18;
      letter-spacing:-.03em;
      margin:12px 0;
    }
    .faq-intro p{color:var(--muted)}
    .faq-list{display:grid;gap:14px}
    .faq-item{
      border-radius:22px;
      background:rgba(255,250,242,.82);
      border:1px solid rgba(61,43,33,.11);
      overflow:hidden;
      box-shadow:0 8px 22px rgba(36,25,19,.06);
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:22px 24px;
      background:transparent;
      color:var(--ink);
      text-align:left;
      font-size:18px;
      font-weight:900;
    }
    .faq-icon{
      flex:0 0 auto;
      width:30px;
      height:30px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(122,38,50,.08);
      color:var(--wine-dark);
      transition:var(--ease);
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-answer-inner{
      padding:0 24px 22px;
      color:var(--muted);
      border-top:1px solid rgba(61,43,33,.08);
      padding-top:16px;
    }
    .faq-item.is-open .faq-icon{
      transform:rotate(45deg);
      background:var(--wine);
      color:#fff6ea;
    }
    .faq-item.is-open{border-color:rgba(198,138,69,.34)}

    .cta{
      padding:78px 0;
      background:
        linear-gradient(135deg,rgba(27,22,20,.94),rgba(94,29,39,.9)),
        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      color:#fff4e5;
      position:relative;
      overflow:hidden;
    }
    .cta::before{
      content:"";
      position:absolute;
      width:420px;
      height:420px;
      border-radius:50%;
      right:-130px;
      top:-180px;
      background:rgba(198,138,69,.18);
    }
    .cta-panel{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1fr) 420px;
      gap:34px;
      align-items:center;
    }
    .cta h2{
      font-size:clamp(30px,3.3vw,50px);
      line-height:1.16;
      letter-spacing:-.04em;
      margin-bottom:14px;
    }
    .cta p{
      color:#dbc9b8;
      max-width:690px;
    }
    .update-form{
      padding:22px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 18px 48px rgba(0,0,0,.18);
    }
    .form-label{
      display:block;
      color:#ffdfb0;
      font-size:14px;
      font-weight:900;
      margin-bottom:10px;
    }
    .form-row{
      display:flex;
      gap:10px;
    }
    .form-row input{
      width:100%;
      min-height:50px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,250,242,.92);
      color:var(--ink);
      padding:0 17px;
      outline:none;
      transition:var(--ease);
    }
    .form-row input:focus{
      border-color:var(--copper);
      box-shadow:0 0 0 4px rgba(198,138,69,.18);
    }
    .form-tip{
      margin-top:10px;
      color:#cdbdaf;
      font-size:13px;
      line-height:1.6;
    }

    .site-footer{
      background:#181210;
      color:#e8d9c8;
      padding:56px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .65fr .8fr;
      gap:36px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      font-size:19px;
      color:#fff6ea;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{box-shadow:none}
    .footer-text{
      color:#bcae9f;
      max-width:520px;
      font-size:14px;
    }
    .footer-title{
      color:#fff4e5;
      font-weight:950;
      margin-bottom:14px;
    }
    .footer-links{
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#bcae9f;
      transition:var(--ease);
      font-size:14px;
    }
    .footer-links a:hover{
      color:#f0b56c;
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .footer-note{
      color:#bcae9f;
      font-size:14px;
      line-height:1.8;
    }
    .copyright{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding-top:22px;
      color:#9e8f80;
      font-size:13px;
    }
    .back-top{
      color:#f0b56c;
      font-weight:900;
    }

    @media (max-width:1024px){
      :root{--nav-h:70px}
      .section{padding:70px 0}
      .hero-grid,.feature-layout,.topic-band,.notice-grid,.faq-wrap,.cta-panel{
        grid-template-columns:1fr;
      }
      .hero-media{min-height:460px}
      .hero-card{inset:0}
      .side-ribbon{left:20px}
      .strip-panel{grid-template-columns:repeat(2,1fr)}
      .strip-item:nth-child(2){border-right:0}
      .strip-item:nth-child(-n+2){border-bottom:1px solid rgba(61,43,33,.1)}
      .feature-main{min-height:460px}
      .faq-intro{position:relative;top:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .nav-actions .btn{display:none}
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(var(--nav-h) + 8px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:22px;
        background:#fffaf2;
        border:1px solid rgba(61,43,33,.13);
        box-shadow:var(--shadow-md);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{justify-content:center}
      .brand-name{font-size:16px}
      .hero{padding:42px 0 58px}
      h1{font-size:clamp(36px,12vw,54px)}
      .hero-subtitle{font-size:16px}
      .hero-actions .btn{width:100%}
      .hero-media{min-height:390px}
      .hero-caption{left:14px;right:14px;bottom:14px;padding:16px}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .news-grid,.proof-grid{grid-template-columns:1fr}
      .mini-card{grid-template-columns:120px 1fr}
      .mini-card img{width:120px;height:112px}
      .footer-grid{grid-template-columns:1fr}
      .form-row{flex-direction:column}
      .form-row .btn{width:100%}
      .cta-panel{gap:24px}
    }

    @media (max-width:520px){
      .section{padding:58px 0}
      .section.tight{padding:44px 0}
      .strip-panel{grid-template-columns:1fr}
      .strip-item{border-right:0;border-bottom:1px solid rgba(61,43,33,.1)}
      .strip-item:last-child{border-bottom:0}
      .feature-main{min-height:430px}
      .feature-content{left:20px;right:20px;bottom:20px}
      .mini-card{grid-template-columns:1fr}
      .mini-card img{width:100%;height:190px}
      .topic-panel,.faq-intro{padding:24px}
      .topic-item{align-items:flex-start;flex-direction:column}
      .notice-image,.notice-image img{min-height:320px}
      .notice-item{grid-template-columns:1fr}
      .faq-question{padding:19px 18px;font-size:16px}
      .faq-answer-inner{padding-left:18px;padding-right:18px}
      .news-card{min-height:220px;padding:20px}
      .copyright{display:block}
      .copyright a{display:inline-block;margin-top:10px}
    }

/* roulang page: article */
:root{
      --ink:#1b1614;
      --ink-soft:#312722;
      --charcoal:#251d1a;
      --wine:#7a2632;
      --wine-dark:#5e1d27;
      --rose:#a35358;
      --copper:#c68a45;
      --copper-dark:#a76f31;
      --cream:#f7f0e6;
      --sand:#efe3d4;
      --taupe:#d9c9b7;
      --paper:#fffaf2;
      --muted:#75695f;
      --muted-2:#9a8b7d;
      --line:rgba(61,43,33,.14);
      --line-dark:rgba(255,244,232,.14);
      --shadow-sm:0 8px 24px rgba(36,25,19,.08);
      --shadow-md:0 18px 45px rgba(36,25,19,.14);
      --shadow-lg:0 28px 70px rgba(28,18,14,.22);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --container:1240px;
      --nav-h:76px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 0%, rgba(198,138,69,.14), transparent 28%),
        radial-gradient(circle at 90% 18%, rgba(122,38,50,.10), transparent 26%),
        linear-gradient(180deg,var(--cream) 0%,#fbf6ee 42%,var(--sand) 100%);
      line-height:1.75;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    p{margin-top:0}
    ::selection{background:rgba(198,138,69,.35);color:var(--ink)}
    .container{
      width:min(calc(100% - 40px),var(--container));
      margin-inline:auto;
    }
    .section{padding:84px 0}
    .section.tight{padding:58px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{
      color:var(--wine);
      font-size:14px;
      font-weight:900;
      letter-spacing:.08em;
      margin-bottom:8px;
    }
    .section-title{
      margin:0;
      font-size:clamp(28px,3vw,44px);
      line-height:1.18;
      letter-spacing:-.03em;
      color:var(--ink);
      font-weight:950;
    }
    .section-desc{
      max-width:600px;
      color:var(--muted);
      font-size:16px;
      margin:0;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--wine);
      font-weight:900;
      border-bottom:1px solid transparent;
      transition:var(--ease);
    }
    .text-link:hover{color:var(--wine-dark);border-bottom-color:currentColor;transform:translateX(2px)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      padding:7px 12px;
      font-size:13px;
      font-weight:900;
      color:var(--wine-dark);
      background:rgba(122,38,50,.09);
      border:1px solid rgba(122,38,50,.13);
      white-space:nowrap;
    }
    .badge.dark{
      color:#ffe6c7;
      background:rgba(255,255,255,.1);
      border-color:rgba(255,255,255,.16);
    }
    .badge.gold{
      color:#4a3015;
      background:rgba(198,138,69,.18);
      border-color:rgba(198,138,69,.28);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:13px 22px;
      border-radius:999px;
      font-weight:900;
      letter-spacing:.01em;
      transition:var(--ease);
      user-select:none;
      white-space:nowrap;
      border:1px solid transparent;
    }
    .btn:focus-visible,
    .text-link:focus-visible,
    .nav-links a:focus-visible,
    .back-top:focus-visible,
    .faq-button:focus-visible{
      outline:3px solid rgba(198,138,69,.36);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fff8ee;
      background:linear-gradient(135deg,var(--wine) 0%,var(--wine-dark) 100%);
      box-shadow:0 14px 30px rgba(122,38,50,.24);
    }
    .btn-primary:hover{color:#fff8ee;transform:translateY(-2px);box-shadow:0 18px 36px rgba(122,38,50,.32)}
    .btn-secondary{
      color:var(--ink);
      background:rgba(255,250,242,.72);
      border-color:rgba(61,43,33,.18);
    }
    .btn-secondary:hover{background:#fffaf2;color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn-text{
      color:var(--wine);
      padding:8px 0;
      min-height:auto;
      border-radius:0;
      background:transparent;
    }
    .btn-text:hover{color:var(--wine-dark);transform:translateX(3px)}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      min-height:var(--nav-h);
      background:rgba(247,240,230,.9);
      backdrop-filter:saturate(160%) blur(16px);
      border-bottom:1px solid rgba(61,43,33,.12);
    }
    .nav-wrap{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      letter-spacing:-.02em;
      color:var(--ink);
      flex:0 0 auto;
    }
    .brand:hover{color:var(--ink)}
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff5e7;
      font-weight:950;
      background:
        linear-gradient(135deg,rgba(198,138,69,.95),rgba(122,38,50,.95)),
        var(--wine);
      box-shadow:0 10px 24px rgba(122,38,50,.18);
    }
    .brand-name{
      font-size:18px;
      line-height:1.2;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      list-style:none;
      padding:0;
      margin:0;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:9px 15px;
      border-radius:999px;
      color:var(--ink-soft);
      font-weight:800;
      transition:var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{
      color:var(--wine-dark);
      background:rgba(122,38,50,.09);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(122,38,50,.08);
      color:var(--wine-dark);
      position:relative;
    }
    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      height:2px;
      background:currentColor;
      border-radius:999px;
      transition:var(--ease);
    }
    .menu-toggle span{top:21px}
    .menu-toggle::before{top:14px}
    .menu-toggle::after{top:28px}
    .menu-toggle.is-open span{opacity:0}
    .menu-toggle.is-open::before{top:21px;transform:rotate(45deg)}
    .menu-toggle.is-open::after{top:21px;transform:rotate(-45deg)}

    .article-hero{
      position:relative;
      padding:54px 0 34px;
      overflow:hidden;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(247,240,230,.96),rgba(247,240,230,.82)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      opacity:.92;
      z-index:-2;
    }
    .article-hero::after{
      content:"";
      position:absolute;
      inset:auto -10% -80px auto;
      width:420px;
      height:220px;
      background:rgba(198,138,69,.14);
      filter:blur(40px);
      border-radius:999px;
      z-index:-1;
    }
    .crumbs{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      color:var(--muted);
      font-size:14px;
      margin-bottom:28px;
    }
    .crumbs a{
      color:var(--wine-dark);
      font-weight:850;
    }
    .crumbs a:hover{text-decoration:underline}
    .crumb-sep{color:var(--muted-2)}
    .article-head-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:38px;
      align-items:stretch;
    }
    .article-title-card{
      padding:36px;
      border-radius:var(--radius-xl);
      background:rgba(255,250,242,.78);
      border:1px solid rgba(61,43,33,.13);
      box-shadow:var(--shadow-sm);
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:18px;
    }
    h1{
      margin:0;
      font-size:clamp(34px,4.3vw,62px);
      line-height:1.08;
      letter-spacing:-.045em;
      font-weight:950;
      color:var(--ink);
    }
    .article-summary{
      margin:20px 0 0;
      max-width:820px;
      color:var(--muted);
      font-size:18px;
      line-height:1.85;
    }
    .article-cover-card{
      min-height:100%;
      border-radius:var(--radius-xl);
      overflow:hidden;
      position:relative;
      background:var(--charcoal);
      box-shadow:var(--shadow-md);
      border:1px solid rgba(61,43,33,.16);
    }
    .article-cover-card img{
      width:100%;
      height:100%;
      min-height:330px;
      object-fit:cover;
      filter:saturate(.92) contrast(1.04);
    }
    .cover-caption{
      position:absolute;
      inset:auto 18px 18px 18px;
      padding:14px 16px;
      border-radius:18px;
      color:#fff4e4;
      background:rgba(27,22,20,.78);
      border:1px solid rgba(255,244,232,.16);
      backdrop-filter:blur(10px);
      font-weight:850;
      font-size:14px;
    }

    .reader-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 320px;
      gap:38px;
      align-items:start;
    }
    .article-panel{
      background:rgba(255,250,242,.9);
      border:1px solid rgba(61,43,33,.13);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .reading-toolbar{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:18px 24px;
      border-bottom:1px solid var(--line);
      background:linear-gradient(180deg,rgba(255,250,242,.96),rgba(247,240,230,.72));
    }
    .reading-toolbar strong{
      color:var(--ink);
      font-size:15px;
    }
    .reading-toolbar span{
      color:var(--muted);
      font-size:14px;
    }
    .article-body{
      padding:34px 40px 44px;
      color:#2a211d;
      font-size:18px;
      line-height:2;
      word-break:break-word;
    }
    .article-body h2,
    .article-body h3,
    .article-body h4{
      color:var(--ink);
      font-weight:950;
      line-height:1.35;
      letter-spacing:-.02em;
      margin:2em 0 .75em;
    }
    .article-body h2{font-size:30px;border-left:5px solid var(--copper);padding-left:14px}
    .article-body h3{font-size:24px}
    .article-body h4{font-size:20px}
    .article-body p{margin:0 0 1.25em}
    .article-body a{
      color:var(--wine-dark);
      font-weight:850;
      border-bottom:1px solid rgba(122,38,50,.35);
    }
    .article-body a:hover{border-bottom-color:currentColor}
    .article-body img{
      border-radius:var(--radius-lg);
      margin:28px auto;
      border:1px solid rgba(61,43,33,.12);
      box-shadow:var(--shadow-sm);
    }
    .article-body blockquote{
      margin:28px 0;
      padding:22px 24px;
      border-left:5px solid var(--wine);
      border-radius:0 var(--radius-md) var(--radius-md) 0;
      background:rgba(122,38,50,.07);
      color:var(--ink-soft);
      font-weight:750;
    }
    .article-body ul,
    .article-body ol{
      margin:0 0 1.35em;
      padding-left:1.35em;
    }
    .article-body li{margin:.42em 0}
    .article-body hr{
      margin:34px 0;
      border:0;
      height:1px;
      background:linear-gradient(90deg,transparent,var(--line),transparent);
    }
    .article-body table{
      width:100%;
      border-collapse:collapse;
      margin:26px 0;
      overflow:hidden;
      border-radius:var(--radius-md);
      font-size:15px;
    }
    .article-body th,
    .article-body td{
      border:1px solid rgba(61,43,33,.14);
      padding:12px 14px;
    }
    .article-body th{
      background:rgba(198,138,69,.15);
      color:var(--ink);
    }
    .not-found{
      padding:28px;
      border-radius:var(--radius-lg);
      background:rgba(122,38,50,.06);
      border:1px solid rgba(122,38,50,.14);
      text-align:center;
    }
    .not-found h2{
      margin:0 0 10px;
      border:0;
      padding:0;
      font-size:28px;
    }
    .not-found p{color:var(--muted);margin-bottom:20px}

    .side-stack{
      display:grid;
      gap:18px;
      position:sticky;
      top:calc(var(--nav-h) + 20px);
    }
    .side-card{
      border-radius:var(--radius-lg);
      background:rgba(255,250,242,.82);
      border:1px solid rgba(61,43,33,.13);
      box-shadow:var(--shadow-sm);
      padding:22px;
    }
    .side-card.dark{
      color:#fff1df;
      background:
        linear-gradient(145deg,rgba(37,29,26,.94),rgba(82,35,35,.92)),
        var(--charcoal);
      border-color:rgba(255,244,232,.13);
      box-shadow:var(--shadow-md);
    }
    .side-title{
      font-size:18px;
      font-weight:950;
      margin-bottom:12px;
      color:inherit;
    }
    .side-text{
      color:var(--muted);
      font-size:15px;
      margin:0;
    }
    .side-card.dark .side-text{color:rgba(255,241,223,.72)}
    .info-list{
      display:grid;
      gap:12px;
      padding:0;
      margin:16px 0 0;
      list-style:none;
    }
    .info-list li{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      padding-bottom:12px;
      border-bottom:1px solid rgba(61,43,33,.1);
      color:var(--muted);
      font-size:14px;
    }
    .info-list li:last-child{border-bottom:0;padding-bottom:0}
    .info-list strong{color:var(--ink);font-size:15px}
    .side-card.dark .info-list li{border-bottom-color:rgba(255,244,232,.12);color:rgba(255,241,223,.72)}
    .side-card.dark .info-list strong{color:#fff1df}
    .notice-card{
      display:grid;
      gap:14px;
    }
    .notice-icon{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:rgba(198,138,69,.18);
      color:#ffe2b8;
      font-weight:950;
    }

    .related-wrap{
      background:linear-gradient(180deg,rgba(37,29,26,.98),rgba(44,31,27,.96));
      color:#fff2df;
      border-top:1px solid rgba(255,244,232,.12);
      border-bottom:1px solid rgba(255,244,232,.12);
    }
    .related-wrap .section-title{color:#fff2df}
    .related-wrap .section-desc{color:rgba(255,242,223,.68)}
    .related-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr .85fr;
      gap:20px;
    }
    .related-card{
      min-height:260px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      position:relative;
      background:#2f2521;
      border:1px solid rgba(255,244,232,.12);
      box-shadow:0 18px 46px rgba(0,0,0,.16);
      transition:var(--ease);
    }
    .related-card:hover{
      transform:translateY(-4px);
      border-color:rgba(198,138,69,.45);
      box-shadow:0 24px 56px rgba(0,0,0,.24);
    }
    .related-card img{
      width:100%;
      height:100%;
      min-height:260px;
      object-fit:cover;
      opacity:.66;
      filter:saturate(.9) contrast(1.05);
      transition:var(--ease);
    }
    .related-card:hover img{opacity:.78;transform:scale(1.03)}
    .related-content{
      position:absolute;
      inset:auto 0 0 0;
      padding:24px;
      background:linear-gradient(180deg,transparent,rgba(23,17,15,.92));
    }
    .related-content h3{
      margin:12px 0 8px;
      font-size:22px;
      line-height:1.35;
      font-weight:950;
    }
    .related-content p{
      margin:0 0 14px;
      color:rgba(255,242,223,.72);
      font-size:15px;
      line-height:1.7;
    }

    .faq-grid{
      display:grid;
      grid-template-columns:380px minmax(0,1fr);
      gap:34px;
      align-items:start;
    }
    .faq-intro{
      border-radius:var(--radius-xl);
      padding:30px;
      background:
        linear-gradient(160deg,rgba(122,38,50,.92),rgba(37,29,26,.94)),
        var(--wine);
      color:#fff2df;
      box-shadow:var(--shadow-md);
    }
    .faq-intro h2{
      margin:0 0 12px;
      font-size:32px;
      font-weight:950;
      line-height:1.2;
    }
    .faq-intro p{
      color:rgba(255,242,223,.74);
      margin-bottom:20px;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      background:rgba(255,250,242,.82);
      border:1px solid rgba(61,43,33,.13);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .faq-button{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:20px 22px;
      background:transparent;
      color:var(--ink);
      font-weight:950;
      text-align:left;
    }
    .faq-button::after{
      content:"+";
      width:30px;
      height:30px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:rgba(122,38,50,.08);
      color:var(--wine-dark);
      transition:var(--ease);
    }
    .faq-item.is-open .faq-button::after{
      content:"−";
      background:rgba(198,138,69,.18);
      transform:rotate(180deg);
    }
    .faq-panel{
      display:none;
      padding:0 22px 22px;
      color:var(--muted);
      line-height:1.85;
    }
    .faq-item.is-open .faq-panel{display:block}
    .faq-panel p{margin:0}

    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      padding:42px;
      background:
        linear-gradient(100deg,rgba(255,250,242,.94),rgba(239,227,212,.88)),
        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      border:1px solid rgba(61,43,33,.13);
      box-shadow:var(--shadow-md);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .cta-card::after{
      content:"";
      position:absolute;
      right:-60px;
      top:-80px;
      width:260px;
      height:260px;
      border-radius:999px;
      background:rgba(198,138,69,.18);
      filter:blur(8px);
    }
    .cta-content{position:relative;z-index:1;max-width:760px}
    .cta-content h2{
      margin:0 0 12px;
      font-size:clamp(28px,3.1vw,44px);
      line-height:1.18;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .cta-content p{
      margin:0;
      color:var(--muted);
      font-size:17px;
    }
    .cta-actions{
      position:relative;
      z-index:1;
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }

    .site-footer{
      padding:58px 0 28px;
      color:#f7ead8;
      background:linear-gradient(180deg,#251d1a 0%,#191412 100%);
      border-top:1px solid rgba(255,244,232,.12);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .75fr 1fr;
      gap:34px;
      align-items:start;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,244,232,.12);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-size:18px;
      font-weight:950;
      margin-bottom:14px;
    }
    .footer-text,.footer-note{
      color:rgba(247,234,216,.68);
      margin:0;
      max-width:560px;
      font-size:15px;
    }
    .footer-title{
      color:#fff2df;
      font-weight:950;
      margin-bottom:12px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(247,234,216,.7);
      transition:var(--ease);
    }
    .footer-links a:hover{
      color:#ffe4bd;
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding-top:22px;
      color:rgba(247,234,216,.58);
      font-size:14px;
    }
    .back-top{
      color:#ffe4bd;
      font-weight:850;
      transition:var(--ease);
    }
    .back-top:hover{color:#fff7ed;transform:translateY(-2px)}

    @media (max-width:1024px){
      :root{--nav-h:70px}
      .nav-actions{display:none}
      .article-head-grid,
      .reader-layout,
      .faq-grid{
        grid-template-columns:1fr;
      }
      .side-stack{
        position:static;
        grid-template-columns:1fr 1fr;
      }
      .article-cover-card img{min-height:280px}
      .related-grid{grid-template-columns:1fr 1fr}
      .related-card:first-child{grid-column:1 / -1}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .section{padding:64px 0}
      .section-head{
        display:grid;
        gap:14px;
        margin-bottom:26px;
      }
      .menu-toggle{display:block}
      .nav-wrap{gap:14px}
      .brand-name{font-size:16px}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(var(--nav-h) + 8px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:22px;
        background:rgba(255,250,242,.98);
        border:1px solid rgba(61,43,33,.12);
        box-shadow:var(--shadow-md);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{justify-content:center}
      .article-hero{padding:34px 0 24px}
      .article-title-card{padding:26px}
      .article-summary{font-size:16px}
      .article-body{padding:26px 22px 34px;font-size:17px;line-height:1.95}
      .article-body h2{font-size:25px}
      .reading-toolbar{padding:16px 18px}
      .side-stack{grid-template-columns:1fr}
      .related-grid{grid-template-columns:1fr}
      .cta-card{
        padding:30px;
        display:grid;
      }
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr}
      .copyright{
        flex-direction:column;
        align-items:flex-start;
      }
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-name{max-width:190px}
      .article-meta{gap:8px}
      .badge{font-size:12px;padding:6px 10px}
      h1{font-size:34px}
      .article-title-card{border-radius:24px;padding:22px}
      .article-cover-card{border-radius:24px}
      .article-cover-card img{min-height:220px}
      .article-panel{border-radius:24px}
      .article-body{padding:24px 18px 30px;font-size:16px}
      .article-body table{display:block;overflow-x:auto;white-space:nowrap}
      .btn{width:100%;padding-left:18px;padding-right:18px}
      .btn-text{width:auto}
      .cta-actions{width:100%}
      .cta-actions .btn{width:100%}
      .related-content{padding:20px}
      .faq-button{padding:18px}
      .faq-panel{padding:0 18px 20px}
    }

/* 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}