/* roulang page: index */
:root{
      --bg:#fbf6f2;
      --bg-soft:#f4ece8;
      --bg-mist:#efe5ea;
      --surface:#fffaf7;
      --surface-2:#fff;
      --ink:#211819;
      --muted:#746265;
      --weak:#9b898b;
      --primary:#6e1736;
      --primary-2:#8b3151;
      --primary-dark:#31111d;
      --rose:#b06a77;
      --gold:#c7a56b;
      --line:rgba(79,39,48,.14);
      --line-strong:rgba(79,39,48,.24);
      --shadow:0 18px 45px rgba(64,25,35,.10);
      --shadow-soft:0 10px 28px rgba(64,25,35,.08);
      --radius:18px;
      --radius-lg:28px;
      --radius-sm:12px;
      --container:1180px;
      --transition:180ms 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% 10%, rgba(176,106,119,.18), transparent 30%),
        radial-gradient(circle at 88% 16%, rgba(199,165,107,.12), transparent 28%),
        linear-gradient(180deg,var(--bg) 0%,#fff 48%,var(--bg-soft) 100%);
      line-height:1.72;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(110,23,54,.18)}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .skip-link{
      position:absolute;
      left:-999px;
      top:12px;
      padding:10px 14px;
      background:var(--primary);
      color:#fff;
      border-radius:10px;
      z-index:1000;
    }
    .skip-link:focus{left:14px}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(251,246,242,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(110,23,54,.10);
    }
    .nav-wrap{
      height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:850;
      letter-spacing:-.02em;
      color:var(--primary-dark);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      background:linear-gradient(135deg,var(--primary),var(--rose));
      box-shadow:0 12px 24px rgba(110,23,54,.18);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border-radius:10px;
      border:2px solid rgba(255,255,255,.68);
    }
    .brand-text{
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:18px;
    }
    .nav-toggle{display:none}
    .nav-toggle-label{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.66);
      align-items:center;
      justify-content:center;
      gap:4px;
      flex-direction:column;
    }
    .nav-toggle-label span{
      width:20px;
      height:2px;
      background:var(--primary);
      border-radius:10px;
      transition:var(--transition);
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:8px;
    }
    .site-nav a{
      padding:10px 14px;
      border-radius:999px;
      color:#5b484c;
      font-size:15px;
      transition:var(--transition);
    }
    .site-nav a:hover,
    .site-nav a:focus{
      background:rgba(110,23,54,.08);
      color:var(--primary);
      outline:none;
    }
    .site-nav a.active{
      color:#fff;
      background:var(--primary);
      box-shadow:0 10px 20px rgba(110,23,54,.18);
    }
    .nav-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:10px 18px;
      border-radius:999px;
      background:var(--primary-dark);
      color:#fff;
      font-weight:700;
      box-shadow:0 12px 24px rgba(49,17,29,.16);
      transition:var(--transition);
      white-space:nowrap;
    }
    .nav-action:hover,.nav-action:focus{
      transform:translateY(-1px);
      background:var(--primary);
      outline:none;
    }
    main{overflow:hidden}
    .hero{
      padding:72px 0 42px;
    }
    .hero-panel{
      position:relative;
      min-height:560px;
      border-radius:36px;
      overflow:hidden;
      background:
        linear-gradient(90deg, rgba(33,24,25,.92) 0%, rgba(58,23,38,.84) 45%, rgba(58,23,38,.38) 100%),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      box-shadow:var(--shadow);
      color:#fff;
      isolation:isolate;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 72% 25%, rgba(199,165,107,.30), transparent 28%),
                 linear-gradient(180deg, transparent 55%, rgba(33,24,25,.40));
      z-index:-1;
    }
    .hero-content{
      max-width:760px;
      padding:72px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.20);
      color:#f7e8de;
      font-size:14px;
      margin-bottom:22px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--gold);
      box-shadow:0 0 0 5px rgba(199,165,107,.18);
    }
    h1{
      margin:0;
      font-size:clamp(38px,6vw,76px);
      line-height:1.05;
      letter-spacing:-.055em;
      max-width:720px;
    }
    .hero-sub{
      margin:24px 0 0;
      max-width:650px;
      font-size:18px;
      color:rgba(255,255,255,.84);
    }
    .hero-actions{
      display:flex;
      align-items:center;
      gap:14px;
      margin-top:34px;
      flex-wrap:wrap;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:12px 22px;
      border-radius:999px;
      font-weight:800;
      transition:var(--transition);
      border:1px solid transparent;
      line-height:1;
    }
    .btn-primary{
      background:linear-gradient(135deg,#fff2e1,#d5b476);
      color:#35141f;
      box-shadow:0 16px 30px rgba(0,0,0,.18);
    }
    .btn-primary:hover,.btn-primary:focus{
      transform:translateY(-2px);
      filter:brightness(1.04);
      outline:none;
    }
    .btn-secondary{
      color:#fff;
      border-color:rgba(255,255,255,.28);
      background:rgba(255,255,255,.08);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      background:rgba(255,255,255,.15);
      transform:translateY(-2px);
      outline:none;
    }
    .btn-dark{
      background:var(--primary);
      color:#fff;
      box-shadow:0 14px 28px rgba(110,23,54,.18);
    }
    .btn-dark:hover,.btn-dark:focus{
      background:var(--primary-dark);
      transform:translateY(-2px);
      outline:none;
    }
    .btn-light{
      background:#fff;
      color:var(--primary);
      border-color:rgba(110,23,54,.14);
    }
    .btn-light:hover,.btn-light:focus{
      border-color:rgba(110,23,54,.35);
      box-shadow:var(--shadow-soft);
      outline:none;
    }
    .hero-note{
      position:absolute;
      right:34px;
      bottom:34px;
      width:min(360px, calc(100% - 68px));
      padding:20px;
      border-radius:22px;
      background:rgba(255,250,247,.92);
      color:var(--ink);
      border:1px solid rgba(255,255,255,.72);
      box-shadow:0 20px 45px rgba(0,0,0,.18);
      backdrop-filter:blur(14px);
    }
    .hero-note strong{display:block;color:var(--primary);font-size:18px;margin-bottom:6px}
    .hero-note p{margin:0;color:var(--muted);font-size:14px}
    .trust-strip{
      margin-top:-8px;
      padding:0 0 42px;
    }
    .trust-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }
    .trust-item{
      padding:18px 18px;
      border-radius:18px;
      background:rgba(255,255,255,.72);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .trust-item b{
      display:block;
      font-size:22px;
      color:var(--primary);
      line-height:1.1;
      margin-bottom:5px;
    }
    .trust-item span{
      color:var(--muted);
      font-size:14px;
    }
    .section{
      padding:54px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      color:var(--primary);
      font-weight:850;
      font-size:14px;
      letter-spacing:.06em;
      margin-bottom:8px;
    }
    h2{
      margin:0;
      font-size:clamp(28px,3.6vw,44px);
      line-height:1.18;
      letter-spacing:-.035em;
      color:var(--primary-dark);
    }
    .section-desc{
      margin:10px 0 0;
      color:var(--muted);
      max-width:660px;
    }
    .content-mosaic{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
      align-items:stretch;
    }
    .feature-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      background:var(--surface-2);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      transition:var(--transition);
    }
    .feature-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:var(--line-strong);
    }
    .feature-card.large{
      min-height:470px;
      display:flex;
      align-items:flex-end;
      color:#fff;
      background:
        linear-gradient(180deg, rgba(33,24,25,.08) 0%, rgba(33,24,25,.88) 82%),
        url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    }
    .feature-card.large .feature-body{padding:34px}
    .feature-stack{
      display:grid;
      gap:22px;
    }
    .feature-card.split{
      display:grid;
      grid-template-columns:160px 1fr;
      min-height:224px;
    }
    .feature-card.split img{
      height:100%;
      width:100%;
      object-fit:cover;
    }
    .feature-body{padding:24px}
    .badge{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(110,23,54,.09);
      color:var(--primary);
      font-size:13px;
      font-weight:800;
      margin-bottom:12px;
    }
    .feature-card.large .badge{
      background:rgba(255,255,255,.16);
      color:#ffe7d6;
      border:1px solid rgba(255,255,255,.18);
    }
    .feature-card h3{
      margin:0 0 10px;
      font-size:24px;
      line-height:1.25;
      letter-spacing:-.02em;
    }
    .feature-card p{
      margin:0 0 18px;
      color:var(--muted);
    }
    .feature-card.large p{color:rgba(255,255,255,.82);max-width:620px}
    .card-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-weight:850;
      color:var(--primary);
      transition:var(--transition);
    }
    .feature-card.large .card-link{color:#ffe7c1}
    .card-link:hover,.card-link:focus{
      gap:12px;
      outline:none;
    }
    .soft-band{
      background:linear-gradient(135deg, rgba(110,23,54,.06), rgba(199,165,107,.10));
      border-block:1px solid rgba(110,23,54,.08);
    }
    .topic-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .topic-card{
      padding:22px;
      border-radius:20px;
      background:rgba(255,255,255,.68);
      border:1px solid var(--line);
      transition:var(--transition);
    }
    .topic-card:hover{
      background:#fff;
      transform:translateY(-3px);
      box-shadow:var(--shadow-soft);
    }
    .topic-icon{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:rgba(110,23,54,.10);
      color:var(--primary);
      font-weight:900;
      margin-bottom:14px;
    }
    .topic-card h3{
      margin:0 0 8px;
      font-size:19px;
      color:var(--primary-dark);
    }
    .topic-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .latest-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:24px;
      align-items:start;
    }
    .post-list{
      display:grid;
      gap:14px;
    }
    .post-card{
      display:grid;
      grid-template-columns:1fr auto;
      gap:18px;
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 22px rgba(64,25,35,.06);
      transition:var(--transition);
    }
    .post-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-soft);
      border-color:var(--line-strong);
    }
    .post-meta{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      margin-bottom:9px;
      color:var(--weak);
      font-size:13px;
    }
    .post-category{
      color:var(--primary);
      background:rgba(110,23,54,.08);
      border-radius:999px;
      padding:4px 9px;
      font-weight:800;
    }
    .post-card h3{
      margin:0 0 8px;
      font-size:21px;
      line-height:1.35;
      color:var(--primary-dark);
    }
    .post-card p{
      margin:0;
      color:var(--muted);
    }
    .post-go{
      align-self:center;
      width:46px;
      height:46px;
      display:grid;
      place-items:center;
      border-radius:16px;
      background:var(--bg-soft);
      color:var(--primary);
      font-weight:900;
      transition:var(--transition);
    }
    .post-card:hover .post-go{
      background:var(--primary);
      color:#fff;
    }
    .empty-state{
      padding:34px;
      border-radius:22px;
      background:#fff;
      border:1px dashed var(--line-strong);
      text-align:center;
      color:var(--muted);
      box-shadow:var(--shadow-soft);
    }
    .empty-icon{
      width:54px;
      height:54px;
      margin:0 auto 12px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:rgba(110,23,54,.08);
      color:var(--primary);
      font-size:24px;
    }
    .side-card{
      position:sticky;
      top:100px;
      padding:24px;
      border-radius:24px;
      color:#fff;
      background:
        linear-gradient(180deg, rgba(49,17,29,.94), rgba(110,23,54,.88)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .side-card h3{
      margin:0 0 10px;
      font-size:24px;
      line-height:1.25;
    }
    .side-card p{
      margin:0 0 18px;
      color:rgba(255,255,255,.78);
      font-size:15px;
    }
    .side-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .side-list li{
      padding:11px 12px;
      border-radius:14px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.12);
      font-size:14px;
    }
    .guide{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:28px;
      align-items:center;
    }
    .guide-media{
      position:relative;
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow);
      min-height:420px;
      background:url('/assets/images/coverpic/cover-4.webp') center/cover no-repeat;
    }
    .guide-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 40%, rgba(33,24,25,.76));
    }
    .guide-chip{
      position:absolute;
      left:24px;
      bottom:24px;
      z-index:1;
      padding:14px 16px;
      border-radius:18px;
      color:#fff;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.20);
      backdrop-filter:blur(12px);
      max-width:320px;
    }
    .guide-content{
      padding:8px 0;
    }
    .guide-list{
      display:grid;
      gap:14px;
      margin:24px 0 0;
      padding:0;
      list-style:none;
    }
    .guide-list li{
      display:grid;
      grid-template-columns:38px 1fr;
      gap:14px;
      padding:18px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 18px rgba(64,25,35,.05);
    }
    .guide-list b{
      width:38px;
      height:38px;
      border-radius:13px;
      display:grid;
      place-items:center;
      background:rgba(199,165,107,.18);
      color:var(--primary);
    }
    .guide-list strong{
      display:block;
      color:var(--primary-dark);
      margin-bottom:3px;
    }
    .guide-list span{
      color:var(--muted);
      font-size:14px;
    }
    .proof-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
    }
    .proof-card{
      padding:28px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .proof-card.dark{
      color:#fff;
      background:linear-gradient(135deg,var(--primary-dark),var(--primary));
      border-color:transparent;
    }
    .proof-card h3{
      margin:0 0 10px;
      font-size:25px;
    }
    .proof-card p{
      margin:0;
      color:var(--muted);
    }
    .proof-card.dark p{color:rgba(255,255,255,.78)}
    .quote{
      margin-top:18px;
      padding-left:16px;
      border-left:3px solid var(--gold);
      color:#f9e8d8;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:360px 1fr;
      gap:28px;
      align-items:start;
    }
    .faq-intro{
      padding:28px;
      border-radius:24px;
      background:var(--primary-dark);
      color:#fff;
      box-shadow:var(--shadow);
    }
    .faq-intro p{
      margin:10px 0 0;
      color:rgba(255,255,255,.78);
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    details{
      border:1px solid var(--line);
      background:#fff;
      border-radius:18px;
      box-shadow:0 8px 18px rgba(64,25,35,.04);
      overflow:hidden;
      transition:var(--transition);
    }
    details[open]{
      border-color:rgba(110,23,54,.24);
      box-shadow:var(--shadow-soft);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 22px;
      font-weight:850;
      color:var(--primary-dark);
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(110,23,54,.08);
      color:var(--primary);
      flex:0 0 auto;
      transition:var(--transition);
    }
    details[open] summary::after{
      content:"–";
      background:var(--primary);
      color:#fff;
    }
    details p{
      margin:0;
      padding:0 22px 20px;
      color:var(--muted);
    }
    .contact-panel{
      display:grid;
      grid-template-columns:1fr 390px;
      gap:24px;
      padding:34px;
      border-radius:30px;
      background:
        radial-gradient(circle at 16% 20%, rgba(199,165,107,.20), transparent 32%),
        linear-gradient(135deg,var(--primary-dark),#5d1831 62%,#8b3151);
      color:#fff;
      box-shadow:var(--shadow);
      align-items:center;
    }
    .contact-panel h2{color:#fff}
    .contact-panel p{
      margin:12px 0 0;
      color:rgba(255,255,255,.78);
      max-width:720px;
    }
    .contact-form{
      display:grid;
      gap:12px;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.16);
    }
    .contact-form label{
      font-size:13px;
      color:#ffe9d8;
      font-weight:800;
    }
    .contact-form input,
    .contact-form textarea{
      width:100%;
      border:1px solid rgba(255,255,255,.22);
      border-radius:14px;
      padding:12px 14px;
      background:rgba(255,255,255,.12);
      color:#fff;
      outline:none;
      transition:var(--transition);
    }
    .contact-form input::placeholder,
    .contact-form textarea::placeholder{color:rgba(255,255,255,.58)}
    .contact-form input:focus,
    .contact-form textarea:focus{
      border-color:rgba(255,232,194,.78);
      box-shadow:0 0 0 4px rgba(255,232,194,.13);
    }
    .contact-form textarea{resize:vertical;min-height:92px}
    .cta{
      padding:42px 0 70px;
    }
    .cta-box{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
      padding:34px;
      border-radius:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .cta-box h2{font-size:34px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
    .site-footer{
      background:#211819;
      color:#f6ebe5;
      padding:48px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      padding-bottom:30px;
      border-bottom:1px solid rgba(255,255,255,.10);
    }
    .footer-brand{
      font-size:20px;
      font-weight:900;
      margin-bottom:10px;
    }
    .footer-grid p{
      margin:0;
      color:rgba(255,255,255,.66);
      max-width:520px;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links h3{
      margin:0 0 6px;
      font-size:16px;
      color:#fff;
    }
    .footer-links a{
      color:rgba(255,255,255,.66);
      transition:var(--transition);
    }
    .footer-links a:hover,.footer-links a:focus{
      color:#fff2d8;
      outline:none;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(255,255,255,.54);
      font-size:13px;
    }
    @media (max-width:1024px){
      .nav-action{display:none}
      .hero-content{padding:56px}
      .trust-grid,.topic-grid{grid-template-columns:repeat(2,1fr)}
      .latest-layout,.guide,.proof-grid,.faq-wrap,.contact-panel{
        grid-template-columns:1fr;
      }
      .side-card{position:relative;top:auto}
      .guide-media{min-height:360px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav-wrap{height:68px}
      .brand-text{font-size:15px;max-width:230px}
      .nav-toggle-label{display:flex}
      .site-nav{
        position:absolute;
        top:68px;
        left:14px;
        right:14px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:20px;
        background:rgba(255,250,247,.96);
        border:1px solid var(--line);
        box-shadow:var(--shadow);
      }
      .site-nav a{
        border-radius:14px;
        padding:12px 14px;
      }
      .nav-toggle:checked ~ .site-nav{display:flex}
      .nav-toggle:checked + .nav-toggle-label span:nth-child(1){transform:translateY(6px) rotate(45deg)}
      .nav-toggle:checked + .nav-toggle-label span:nth-child(2){opacity:0}
      .nav-toggle:checked + .nav-toggle-label span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
      .hero{padding:34px 0 28px}
      .hero-panel{min-height:auto;border-radius:26px}
      .hero-content{padding:34px 24px 156px}
      .hero-sub{font-size:16px}
      .hero-note{left:18px;right:18px;bottom:18px;width:auto}
      .section{padding:42px 0}
      .section-head{display:block}
      .content-mosaic{grid-template-columns:1fr}
      .feature-card.large{min-height:390px}
      .feature-card.split{grid-template-columns:130px 1fr}
      .post-card{grid-template-columns:1fr}
      .post-go{justify-self:start}
      .contact-panel,.cta-box{padding:24px}
      .cta-box{display:block}
      .cta-actions{margin-top:18px}
    }
    @media (max-width:520px){
      body{line-height:1.68}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text{max-width:190px}
      h1{font-size:38px}
      .hero-actions,.cta-actions{align-items:stretch}
      .btn{width:100%}
      .trust-grid,.topic-grid{grid-template-columns:1fr}
      .feature-card.split{grid-template-columns:1fr}
      .feature-card.split img{height:190px}
      .guide-list li{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --bg:#fbf6f2;
      --bg-soft:#f4ece8;
      --bg-mist:#efe5ea;
      --surface:#fffaf7;
      --surface-2:#fff;
      --ink:#211819;
      --muted:#746265;
      --weak:#9b898b;
      --primary:#6e1736;
      --primary-2:#8b3151;
      --primary-dark:#31111d;
      --rose:#b06a77;
      --gold:#c7a56b;
      --line:rgba(79,39,48,.14);
      --line-strong:rgba(79,39,48,.24);
      --shadow:0 18px 45px rgba(64,25,35,.10);
      --shadow-soft:0 10px 28px rgba(64,25,35,.08);
      --radius:18px;
      --radius-lg:28px;
      --radius-sm:12px;
      --container:1180px;
      --transition:180ms 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 10% 5%, rgba(176,106,119,.18), transparent 30%),
        radial-gradient(circle at 88% 12%, rgba(199,165,107,.12), transparent 28%),
        linear-gradient(180deg,var(--bg) 0%,#fff 48%,var(--bg-soft) 100%);
      line-height:1.72;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(110,23,54,.18);color:var(--primary-dark)}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(251,246,242,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(110,23,54,.10);
    }
    .nav-wrap{
      height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:850;
      letter-spacing:-.02em;
      color:var(--primary-dark);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      background:linear-gradient(135deg,var(--primary),var(--rose));
      box-shadow:0 12px 24px rgba(110,23,54,.18);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:10px;
      border-radius:10px;
      border:2px solid rgba(255,255,255,.68);
    }
    .brand-text{
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:18px;
    }
    .nav-toggle{display:none}
    .nav-toggle-label{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.66);
      align-items:center;
      justify-content:center;
      gap:4px;
      flex-direction:column;
    }
    .nav-toggle-label span{
      width:20px;
      height:2px;
      background:var(--primary);
      border-radius:10px;
      transition:var(--transition);
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:8px;
    }
    .site-nav a{
      padding:10px 14px;
      border-radius:999px;
      color:#5b484c;
      font-size:15px;
      transition:var(--transition);
    }
    .site-nav a:hover,
    .site-nav a:focus{
      background:rgba(110,23,54,.08);
      color:var(--primary);
      outline:none;
    }
    .site-nav a.active{
      color:#fff;
      background:var(--primary);
      box-shadow:0 10px 20px rgba(110,23,54,.18);
    }
    .nav-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:10px 18px;
      border-radius:999px;
      background:var(--primary-dark);
      color:#fff;
      font-weight:700;
      box-shadow:0 12px 24px rgba(49,17,29,.16);
      transition:var(--transition);
      white-space:nowrap;
    }
    .nav-action:hover,.nav-action:focus{
      transform:translateY(-1px);
      background:var(--primary);
      outline:none;
      color:#fff;
    }
    main{overflow:hidden}
    .article-top{
      padding:44px 0 26px;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      margin:0 0 20px;
      color:var(--muted);
      font-size:14px;
    }
    .breadcrumb a{
      color:var(--primary);
      font-weight:700;
      transition:var(--transition);
    }
    .breadcrumb a:hover,.breadcrumb a:focus{
      color:var(--primary-dark);
      text-decoration:underline;
      outline:none;
    }
    .breadcrumb span{
      color:var(--weak);
    }
    .article-head{
      position:relative;
      border-radius:36px;
      overflow:hidden;
      min-height:420px;
      background:
        linear-gradient(100deg, rgba(33,24,25,.92) 0%, rgba(58,23,38,.82) 47%, rgba(58,23,38,.32) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      color:#fff;
      box-shadow:var(--shadow);
      isolation:isolate;
    }
    .article-head::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 78% 20%, rgba(199,165,107,.28), transparent 30%),
        linear-gradient(180deg, transparent 48%, rgba(33,24,25,.40));
      z-index:-1;
    }
    .article-head-inner{
      max-width:850px;
      padding:56px 62px;
    }
    .article-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.20);
      color:#f7e8de;
      font-size:14px;
      margin-bottom:18px;
    }
    .article-kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--gold);
      box-shadow:0 0 0 5px rgba(199,165,107,.18);
    }
    h1{
      margin:0;
      font-size:clamp(32px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.04em;
      font-weight:900;
      max-width:820px;
    }
    .article-summary{
      margin:22px 0 0;
      max-width:760px;
      font-size:18px;
      color:rgba(255,255,255,.84);
    }
    .article-meta{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      margin-top:28px;
    }
    .badge-pill,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:30px;
      padding:6px 11px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      color:var(--primary);
      background:rgba(110,23,54,.08);
      border:1px solid rgba(110,23,54,.12);
    }
    .article-meta .badge-pill{
      color:#fff3e4;
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.20);
    }
    .reading-note{
      margin-top:24px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      max-width:760px;
    }
    .note-item{
      padding:14px 16px;
      border-radius:16px;
      background:rgba(255,255,255,.11);
      border:1px solid rgba(255,255,255,.18);
      color:rgba(255,255,255,.88);
      font-size:14px;
    }
    .note-item strong{
      display:block;
      color:#fff;
      font-size:15px;
      margin-bottom:2px;
    }
    .article-layout{
      padding:34px 0 72px;
    }
    .content-grid{
      display:grid;
      grid-template-columns:minmax(0, 1fr) 330px;
      gap:28px;
      align-items:start;
    }
    .article-card{
      background:rgba(255,250,247,.88);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .cover-strip{
      padding:16px 16px 0;
    }
    .cover-strip img{
      width:100%;
      height:320px;
      object-fit:cover;
      border-radius:22px;
      box-shadow:0 16px 34px rgba(64,25,35,.10);
    }
    .article-body{
      padding:38px 44px 44px;
      font-size:17px;
      color:#3b3032;
    }
    .article-body h2{
      margin:36px 0 14px;
      font-size:28px;
      line-height:1.28;
      font-weight:880;
      letter-spacing:-.02em;
      color:var(--primary-dark);
    }
    .article-body h3{
      margin:30px 0 12px;
      font-size:22px;
      line-height:1.36;
      color:#3c1a25;
      font-weight:850;
    }
    .article-body p{
      margin:0 0 18px;
    }
    .article-body a{
      color:var(--primary);
      font-weight:750;
      border-bottom:1px solid rgba(110,23,54,.22);
      transition:var(--transition);
    }
    .article-body a:hover,.article-body a:focus{
      color:var(--primary-dark);
      border-bottom-color:var(--primary);
      outline:none;
    }
    .article-body ul,.article-body ol{
      margin:0 0 20px 1.2em;
      padding:0;
    }
    .article-body li{
      margin:8px 0;
      padding-left:4px;
    }
    .article-body blockquote{
      margin:28px 0;
      padding:22px 24px;
      border-left:4px solid var(--gold);
      border-radius:18px;
      background:linear-gradient(135deg,rgba(244,236,232,.86),rgba(255,255,255,.82));
      color:#514245;
      box-shadow:inset 0 0 0 1px rgba(79,39,48,.08);
    }
    .article-body img{
      border-radius:22px;
      box-shadow:var(--shadow-soft);
      margin:26px 0;
    }
    .article-body hr{
      border:0;
      border-top:1px solid var(--line);
      margin:34px 0;
    }
    .empty-state{
      padding:46px;
      text-align:center;
      background:linear-gradient(135deg,rgba(244,236,232,.88),rgba(255,250,247,.96));
      border:1px dashed var(--line-strong);
      border-radius:24px;
    }
    .empty-icon{
      width:64px;
      height:64px;
      margin:0 auto 16px;
      border-radius:22px;
      background:linear-gradient(135deg,var(--primary),var(--rose));
      position:relative;
      box-shadow:0 14px 26px rgba(110,23,54,.16);
    }
    .empty-icon::after{
      content:"";
      position:absolute;
      width:28px;
      height:20px;
      border:2px solid rgba(255,255,255,.72);
      border-radius:8px;
      left:18px;
      top:22px;
    }
    .empty-state h2{
      margin:0 0 10px;
      color:var(--primary-dark);
      font-size:28px;
      font-weight:900;
    }
    .empty-state p{
      margin:0 auto 22px;
      max-width:520px;
      color:var(--muted);
    }
    .side-panel{
      position:sticky;
      top:104px;
      display:grid;
      gap:18px;
    }
    .side-card{
      background:rgba(255,250,247,.86);
      border:1px solid var(--line);
      border-radius:24px;
      padding:22px;
      box-shadow:var(--shadow-soft);
    }
    .side-card h2,.side-card h3{
      margin:0 0 14px;
      font-size:20px;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--primary-dark);
    }
    .side-card p{
      margin:0 0 14px;
      color:var(--muted);
      font-size:15px;
    }
    .quick-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .quick-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(110,23,54,.055);
      color:#4f343b;
      font-weight:750;
      transition:var(--transition);
    }
    .quick-list a::after{
      content:"›";
      color:var(--primary);
      font-size:20px;
      line-height:1;
    }
    .quick-list a:hover,.quick-list a:focus{
      background:rgba(110,23,54,.10);
      transform:translateX(2px);
      outline:none;
    }
    .mini-cover{
      overflow:hidden;
      border-radius:20px;
      margin-bottom:16px;
    }
    .mini-cover img{
      width:100%;
      height:180px;
      object-fit:cover;
      transition:transform 300ms ease;
    }
    .side-card:hover .mini-cover img{
      transform:scale(1.035);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:12px 22px;
      border-radius:999px;
      font-weight:800;
      transition:var(--transition);
      border:1px solid transparent;
      line-height:1;
      text-decoration:none;
    }
    .btn-primary{
      background:linear-gradient(135deg,#fff2e1,#d5b476);
      color:#35141f;
      box-shadow:0 16px 30px rgba(0,0,0,.12);
    }
    .btn-primary:hover,.btn-primary:focus{
      transform:translateY(-2px);
      filter:brightness(1.04);
      outline:none;
      color:#35141f;
    }
    .btn-secondary{
      color:var(--primary);
      border-color:rgba(110,23,54,.22);
      background:rgba(255,255,255,.58);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      background:rgba(110,23,54,.08);
      transform:translateY(-2px);
      outline:none;
      color:var(--primary-dark);
    }
    .btn-dark{
      background:var(--primary);
      color:#fff;
      box-shadow:0 14px 28px rgba(110,23,54,.18);
    }
    .btn-dark:hover,.btn-dark:focus{
      background:var(--primary-dark);
      transform:translateY(-2px);
      outline:none;
      color:#fff;
    }
    .article-actions{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      margin-top:26px;
      padding-top:24px;
      border-top:1px solid var(--line);
    }
    .section{
      padding:66px 0;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-title{
      margin:0;
      font-size:clamp(26px,3vw,40px);
      line-height:1.22;
      font-weight:920;
      letter-spacing:-.03em;
      color:var(--primary-dark);
    }
    .section-desc{
      margin:8px 0 0;
      max-width:680px;
      color:var(--muted);
    }
    .recommend-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:18px;
    }
    .recommend-card{
      background:rgba(255,250,247,.88);
      border:1px solid var(--line);
      border-radius:24px;
      overflow:hidden;
      box-shadow:var(--shadow-soft);
      transition:var(--transition);
      min-height:100%;
    }
    .recommend-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:var(--line-strong);
    }
    .recommend-card img{
      width:100%;
      height:190px;
      object-fit:cover;
    }
    .recommend-card:first-child img{
      height:240px;
    }
    .recommend-body{
      padding:20px;
    }
    .recommend-body h3{
      margin:12px 0 8px;
      font-size:20px;
      line-height:1.35;
      font-weight:880;
      color:#2c171e;
    }
    .recommend-body p{
      margin:0 0 16px;
      color:var(--muted);
      font-size:15px;
    }
    .recommend-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      color:var(--weak);
      font-size:13px;
    }
    .guide-band{
      padding:34px;
      border-radius:32px;
      background:
        linear-gradient(135deg,rgba(49,17,29,.94),rgba(110,23,54,.88)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#fff;
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr 360px;
      gap:28px;
      align-items:center;
    }
    .guide-band h2{
      margin:0 0 12px;
      font-size:34px;
      line-height:1.22;
      font-weight:920;
      letter-spacing:-.03em;
    }
    .guide-band p{
      margin:0;
      color:rgba(255,255,255,.82);
    }
    .guide-points{
      display:grid;
      gap:12px;
    }
    .guide-point{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.16);
      color:#fff5eb;
      font-weight:750;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:360px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    details{
      background:rgba(255,250,247,.88);
      border:1px solid var(--line);
      border-radius:20px;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:var(--transition);
    }
    details[open]{
      border-color:rgba(110,23,54,.24);
      background:#fff;
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:18px 22px;
      font-weight:850;
      color:var(--primary-dark);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(110,23,54,.08);
      color:var(--primary);
      flex:0 0 auto;
      transition:var(--transition);
    }
    details[open] summary::after{
      content:"−";
      background:var(--primary);
      color:#fff;
    }
    details p{
      margin:0;
      padding:0 22px 20px;
      color:var(--muted);
    }
    .contact-cta{
      padding:36px;
      border-radius:32px;
      background:linear-gradient(135deg,#fffaf7,#f2e7e3);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:24px;
      align-items:center;
    }
    .contact-cta h2{
      margin:0 0 8px;
      font-size:32px;
      line-height:1.25;
      font-weight:920;
      color:var(--primary-dark);
      letter-spacing:-.03em;
    }
    .contact-cta p{
      margin:0;
      color:var(--muted);
      max-width:700px;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .site-footer{
      background:linear-gradient(180deg,#3a1726 0%,#241118 100%);
      color:rgba(255,255,255,.78);
      padding:54px 0 28px;
      margin-top:18px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr .8fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      color:#fff;
      font-weight:900;
      font-size:22px;
      margin-bottom:12px;
    }
    .site-footer p{
      margin:0;
      max-width:520px;
      color:rgba(255,255,255,.70);
    }
    .footer-links{
      display:grid;
      gap:8px;
      align-content:start;
    }
    .footer-links h3{
      margin:0 0 8px;
      color:#fff;
      font-size:16px;
      font-weight:850;
    }
    .footer-links a{
      color:rgba(255,255,255,.70);
      transition:var(--transition);
    }
    .footer-links a:hover,.footer-links a:focus{
      color:#fff1d6;
      transform:translateX(2px);
      outline:none;
    }
    .copyright{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(255,255,255,.58);
      font-size:14px;
    }
    @media (max-width:1200px){
      .container{width:min(1080px, calc(100% - 36px))}
      .content-grid{grid-template-columns:minmax(0,1fr) 300px}
      .article-head-inner{padding:52px}
    }
    @media (max-width:992px){
      .nav-action{display:none}
      .content-grid{grid-template-columns:1fr}
      .side-panel{position:static;grid-template-columns:repeat(2,1fr)}
      .recommend-grid{grid-template-columns:1fr 1fr}
      .recommend-card:first-child{grid-column:1/-1}
      .guide-band{grid-template-columns:1fr}
      .faq-wrap{grid-template-columns:1fr}
      .contact-cta{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:768px){
      .nav-wrap{height:70px;gap:12px}
      .brand-text{font-size:16px;max-width:210px}
      .nav-toggle-label{display:flex;order:3}
      .site-nav{
        position:absolute;
        left:20px;
        right:20px;
        top:78px;
        display:grid;
        grid-template-columns:1fr;
        gap:8px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:22px;
        background:rgba(255,250,247,.96);
        box-shadow:var(--shadow);
        transform:translateY(-10px);
        opacity:0;
        pointer-events:none;
        transition:var(--transition);
      }
      .nav-toggle:checked ~ .site-nav{
        opacity:1;
        pointer-events:auto;
        transform:translateY(0);
      }
      .nav-toggle:checked + .nav-toggle-label span:nth-child(1){transform:translateY(6px) rotate(45deg)}
      .nav-toggle:checked + .nav-toggle-label span:nth-child(2){opacity:0}
      .nav-toggle:checked + .nav-toggle-label span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
      .article-top{padding:28px 0 18px}
      .article-head{border-radius:28px;min-height:auto}
      .article-head-inner{padding:38px 28px}
      .article-summary{font-size:16px}
      .reading-note{grid-template-columns:1fr}
      .article-body{padding:30px 24px 34px;font-size:16px}
      .cover-strip img{height:230px}
      .side-panel{grid-template-columns:1fr}
      .section{padding:48px 0}
      .section-head{display:block}
      .recommend-grid{grid-template-columns:1fr}
      .guide-band{padding:28px;border-radius:26px}
      .guide-band h2{font-size:28px}
      .contact-cta{padding:28px;border-radius:26px}
      .contact-cta h2{font-size:26px}
    }
    @media (max-width:576px){
      .container{width:calc(100% - 28px)}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .brand-text{max-width:180px}
      .breadcrumb{font-size:13px}
      h1{font-size:30px}
      .article-head-inner{padding:30px 20px}
      .article-meta{gap:8px}
      .article-card{border-radius:24px}
      .cover-strip{padding:12px 12px 0}
      .cover-strip img{height:190px;border-radius:18px}
      .article-body{padding:26px 18px 30px}
      .article-body h2{font-size:24px}
      .article-body h3{font-size:20px}
      .article-actions{align-items:stretch}
      .article-actions .btn{width:100%}
      .side-card{padding:18px;border-radius:20px}
      .recommend-card img,.recommend-card:first-child img{height:180px}
      .cta-actions,.hero-actions{display:grid;width:100%}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid;gap:8px}
    }

/* 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}