/* roulang page: index */
:root{
      --bg:#f5f1ea;
      --bg-soft:#f8f4ee;
      --surface:#ffffff;
      --surface-2:#fbf6f0;
      --surface-dark:#241a1b;
      --surface-darker:#1a1213;
      --ink:#22191b;
      --muted:#7c6d6e;
      --muted-2:#9a8d8e;
      --line:rgba(79,56,57,.14);
      --line-strong:rgba(79,56,57,.22);
      --primary:#8d2438;
      --primary-2:#b13a50;
      --primary-soft:rgba(141,36,56,.10);
      --accent:#d7a667;
      --accent-soft:#f4e1bf;
      --shadow:0 18px 42px rgba(28,17,18,.10);
      --shadow-strong:0 22px 50px rgba(28,17,18,.16);
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:14px;
      --container:1220px;
      --content:840px;
      --gap:24px;
      --header-h:80px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{box-sizing:border-box}
    html{
      scroll-behavior:smooth;
    }
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(1000px 520px at 12% -10%, rgba(141,36,56,.08), transparent 55%),
        radial-gradient(780px 420px at 92% 4%, rgba(215,166,103,.10), transparent 52%),
        linear-gradient(180deg, #faf7f2 0%, var(--bg) 36%, #f3eee6 100%);
      min-height:100vh;
      overflow-x:hidden;
      line-height:1.8;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    img{
      display:block;
      max-width:100%;
      height:auto;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease), opacity .22s var(--ease);
    }
    a:hover{color:var(--primary)}
    button,input,textarea,select{
      font:inherit;
    }
    button{
      border:0;
      background:none;
      padding:0;
      cursor:pointer;
    }
    ::selection{
      background:rgba(141,36,56,.18);
      color:var(--ink);
    }
    :focus-visible{
      outline:3px solid rgba(141,36,56,.28);
      outline-offset:3px;
      border-radius:12px;
    }
    .container{
      width:min(calc(100% - 32px), var(--container));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
      background:rgba(250,247,242,.72);
      border-bottom:1px solid rgba(79,56,57,.08);
    }
    .site-header.is-scrolled{
      background:rgba(248,244,238,.92);
      box-shadow:0 10px 24px rgba(31,19,20,.06);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:800;
      letter-spacing:.2px;
      color:var(--surface-darker);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        linear-gradient(135deg, var(--primary) 0%, #6d1d2d 100%);
      box-shadow:0 10px 18px rgba(141,36,56,.22);
      flex:0 0 auto;
      position:relative;
      overflow:hidden;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:auto;
      background:rgba(255,255,255,.18);
      border-radius:999px;
    }
    .brand-mark::before{
      width:14px;
      height:14px;
      left:10px;
      top:13px;
      box-shadow:16px 0 0 rgba(255,255,255,.18);
    }
    .brand-mark::after{
      width:16px;
      height:16px;
      right:10px;
      bottom:10px;
      opacity:.55;
    }
    .brand-text{
      font-size:1rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:16px;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .site-nav a{
      padding:11px 14px;
      border-radius:999px;
      color:var(--muted);
      font-size:.95rem;
      line-height:1;
      border:1px solid transparent;
    }
    .site-nav a:hover,
    .site-nav a:focus-visible{
      color:var(--primary);
      background:rgba(141,36,56,.06);
      border-color:rgba(141,36,56,.10);
    }
    .site-nav a.active{
      color:#fff;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      box-shadow:0 12px 18px rgba(141,36,56,.20);
      border-color:transparent;
    }
    .header-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      color:#fff;
      font-weight:700;
      border:1px solid rgba(255,255,255,.16);
      box-shadow:0 12px 24px rgba(141,36,56,.20);
      white-space:nowrap;
    }
    .header-action:hover{
      transform:translateY(-1px);
      box-shadow:0 16px 28px rgba(141,36,56,.24);
      color:#fff;
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(79,56,57,.14);
      background:rgba(255,255,255,.68);
      color:var(--ink);
      align-items:center;
      justify-content:center;
      box-shadow:0 10px 20px rgba(28,17,18,.05);
    }
    .menu-toggle span{
      width:18px;
      height:2px;
      background:currentColor;
      position:relative;
      border-radius:999px;
      display:block;
    }
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:999px;
    }
    .menu-toggle span::before{top:-6px}
    .menu-toggle span::after{top:6px}
    main{
      position:relative;
      z-index:1;
    }
    section{
      padding:88px 0;
    }
    section[id]{
      scroll-margin-top:96px;
    }
    .hero{
      padding:28px 0 76px;
    }
    .hero-shell{
      position:relative;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.36);
      border-radius:32px;
      background:
        linear-gradient(180deg, rgba(36,26,27,.74), rgba(36,26,27,.70)),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      box-shadow:var(--shadow-strong);
      color:#fff;
    }
    .hero-shell::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(26,18,19,.78) 0%, rgba(26,18,19,.58) 40%, rgba(26,18,19,.32) 100%),
        radial-gradient(800px 340px at 18% 14%, rgba(177,58,80,.30), transparent 58%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:34px;
      padding:42px;
      align-items:center;
    }
    .hero-kicker{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.16);
      color:#f5ece8;
      font-size:.92rem;
      width:fit-content;
      margin-bottom:18px;
      backdrop-filter:blur(10px);
    }
    .hero-kicker .dot{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(215,166,103,.14);
    }
    h1{
      margin:0;
      font-size:clamp(2rem, 4vw, 3.2rem);
      line-height:1.12;
      letter-spacing:-.02em;
      max-width:12.5em;
    }
    .hero-lead{
      margin:18px 0 0;
      font-size:1.08rem;
      line-height:1.9;
      color:rgba(255,255,255,.88);
      max-width:52ch;
    }
    .hero-points{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:24px 0 0;
    }
    .mini-tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.16);
      color:#fff;
      font-size:.92rem;
      backdrop-filter:blur(10px);
    }
    .mini-tag em{
      font-style:normal;
      color:var(--accent);
      font-weight:700;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      font-weight:700;
      border:1px solid transparent;
      transition:transform .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
      will-change:transform;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      box-shadow:0 16px 26px rgba(141,36,56,.24);
    }
    .btn-primary:hover{
      box-shadow:0 20px 34px rgba(141,36,56,.28);
      color:#fff;
    }
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.16);
    }
    .btn-secondary:hover{
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.22);
      color:#fff;
    }
    .age-note{
      margin-top:18px;
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:10px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.14);
      color:#fff;
      font-size:.92rem;
      max-width:fit-content;
      backdrop-filter:blur(10px);
    }
    .age-note strong{
      color:var(--accent);
      font-weight:800;
    }
    .hero-side{
      display:grid;
      gap:16px;
    }
    .hero-panel{
      background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(250,244,236,.95));
      color:var(--ink);
      border:1px solid rgba(255,255,255,.48);
      border-radius:28px;
      overflow:hidden;
      box-shadow:0 18px 38px rgba(17,11,12,.18);
    }
    .hero-collage{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:12px;
      padding:14px;
      min-height:292px;
    }
    .hero-collage .img-card{
      position:relative;
      border-radius:22px;
      overflow:hidden;
      min-height:250px;
      background:var(--surface-dark);
      isolation:isolate;
    }
    .hero-collage .img-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(20,14,15,.02), rgba(20,14,15,.18));
      pointer-events:none;
    }
    .hero-collage .img-card img{
      width:100%;
      height:100%;
      object-fit:cover;
      transform:scale(1.01);
    }
    .hero-collage .stack{
      display:grid;
      gap:12px;
    }
    .hero-collage .stack .img-card{
      min-height:119px;
    }
    .hero-card-body{
      padding:0 16px 16px;
    }
    .hero-card-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding-top:2px;
      margin-bottom:8px;
      font-weight:800;
    }
    .hero-card-title small{
      color:var(--muted);
      font-weight:600;
    }
    .hero-card-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .hero-card-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      font-size:.96rem;
    }
    .hero-card-list li::before{
      content:"";
      width:8px;
      height:8px;
      margin-top:.55em;
      border-radius:50%;
      background:var(--primary);
      flex:0 0 auto;
      box-shadow:0 0 0 4px rgba(141,36,56,.10);
    }
    .hero-trace{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:0 4px;
    }
    .trace-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(255,255,255,.80);
      border:1px solid rgba(79,56,57,.10);
      color:var(--ink);
      font-size:.92rem;
      box-shadow:0 10px 18px rgba(25,16,17,.05);
    }
    .trace-chip i{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      display:inline-block;
    }
    .notice-bar{
      margin-top:-14px;
      position:relative;
      z-index:2;
      padding:0 0 8px;
    }
    .notice-box{
      display:flex;
      align-items:flex-start;
      gap:14px;
      border-radius:22px;
      padding:18px 20px;
      background:linear-gradient(180deg, rgba(244,225,191,.92), rgba(255,248,234,.96));
      border:1px solid rgba(215,166,103,.22);
      box-shadow:0 12px 26px rgba(54,34,16,.07);
    }
    .notice-badge{
      flex:0 0 auto;
      min-width:56px;
      min-height:56px;
      border-radius:18px;
      display:grid;
      place-items:center;
      font-weight:900;
      color:#fff;
      background:linear-gradient(135deg, var(--primary) 0%, #6c1d2e 100%);
      box-shadow:0 10px 18px rgba(141,36,56,.18);
    }
    .notice-copy h2{
      margin:0 0 4px;
      font-size:1.15rem;
      line-height:1.3;
    }
    .notice-copy p{
      margin:0;
      color:var(--muted);
      line-height:1.8;
      font-size:.98rem;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:26px;
    }
    .section-title{
      margin:0;
      font-size:clamp(1.5rem, 2.4vw, 2.25rem);
      line-height:1.16;
      letter-spacing:-.02em;
    }
    .section-lead{
      margin:10px 0 0;
      color:var(--muted);
      max-width:62ch;
      line-height:1.85;
      font-size:1rem;
    }
    .section-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      border:1px solid rgba(79,56,57,.12);
      background:rgba(255,255,255,.65);
      color:var(--ink);
      white-space:nowrap;
    }
    .section-link:hover{
      transform:translateY(-1px);
      border-color:rgba(141,36,56,.18);
      color:var(--primary);
      box-shadow:0 10px 20px rgba(28,17,18,.06);
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:22px;
      align-items:start;
    }
    .feature-card,
    .info-card,
    .guide-card,
    .faq-card,
    .cta-card,
    .news-panel,
    .step-card{
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(251,246,240,.96));
      box-shadow:0 12px 28px rgba(31,20,21,.06);
    }
    .feature-card{
      padding:28px;
      position:relative;
      overflow:hidden;
    }
    .feature-card::after{
      content:"";
      position:absolute;
      inset:auto -16% -22% auto;
      width:320px;
      height:320px;
      background:radial-gradient(circle, rgba(141,36,56,.10) 0%, rgba(141,36,56,0) 68%);
      pointer-events:none;
    }
    .feature-title{
      margin:0;
      font-size:1.46rem;
      line-height:1.24;
    }
    .feature-text{
      margin:14px 0 0;
      color:var(--muted);
      font-size:1rem;
      line-height:1.9;
      max-width:60ch;
    }
    .feature-list{
      display:grid;
      gap:14px;
      margin:20px 0 0;
      padding:0;
      list-style:none;
    }
    .feature-list li{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:14px 15px;
      border-radius:18px;
      background:rgba(255,255,255,.78);
      border:1px solid rgba(79,56,57,.10);
    }
    .feature-icon{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      flex:0 0 auto;
      background:rgba(141,36,56,.08);
      color:var(--primary);
      font-size:1.1rem;
      font-weight:800;
    }
    .feature-copy strong{
      display:block;
      font-size:1rem;
      line-height:1.4;
      margin-bottom:4px;
    }
    .feature-copy span{
      display:block;
      color:var(--muted);
      font-size:.96rem;
      line-height:1.75;
    }
    .side-stack{
      display:grid;
      gap:18px;
    }
    .info-card{
      padding:22px;
    }
    .info-card .tag,
    .news-tag,
    .chip{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 12px;
      border-radius:999px;
      font-size:.82rem;
      font-weight:700;
      letter-spacing:.02em;
    }
    .tag{
      color:var(--primary);
      background:var(--primary-soft);
      border:1px solid rgba(141,36,56,.12);
    }
    .info-card h3{
      margin:12px 0 8px;
      font-size:1.18rem;
      line-height:1.4;
    }
    .info-card p{
      margin:0;
      color:var(--muted);
      line-height:1.85;
      font-size:.98rem;
    }
    .info-list{
      margin:16px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .info-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      line-height:1.7;
      font-size:.95rem;
    }
    .info-list li::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      margin-top:.55em;
      box-shadow:0 0 0 4px rgba(215,166,103,.14);
      flex:0 0 auto;
    }
    .info-card.media{
      overflow:hidden;
      padding:0;
    }
    .media-cover{
      aspect-ratio:16/10;
      overflow:hidden;
      background:var(--surface-dark);
      position:relative;
    }
    .media-cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(.95) contrast(1.02);
    }
    .media-cover::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(20,14,15,.02), rgba(20,14,15,.24));
    }
    .media-body{
      padding:20px 22px 22px;
    }
    .media-note{
      color:var(--muted-2);
      margin-top:10px;
      font-size:.9rem;
      line-height:1.7;
    }
    .news-layout{
      display:grid;
      grid-template-columns:1fr 1.1fr;
      gap:22px;
      align-items:start;
    }
    .news-feature{
      min-height:100%;
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(36,26,27,.92), rgba(36,26,27,.86)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      color:#fff;
      position:relative;
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.08);
    }
    .news-feature::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(18,12,13,.58), rgba(18,12,13,.34));
    }
    .news-feature-inner{
      position:relative;
      z-index:1;
      padding:28px;
      display:grid;
      gap:18px;
    }
    .news-feature h3{
      margin:0;
      font-size:1.6rem;
      line-height:1.22;
    }
    .news-feature p{
      margin:0;
      color:rgba(255,255,255,.86);
      line-height:1.9;
      font-size:.99rem;
      max-width:34ch;
    }
    .news-feature .feature-list li{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.12);
      color:#fff;
    }
    .news-feature .feature-copy span{
      color:rgba(255,255,255,.76);
    }
    .news-feature .feature-icon{
      background:rgba(255,255,255,.12);
      color:#fff;
    }
    .news-panel{
      padding:22px;
    }
    .news-panel h3{
      margin:0 0 12px;
      font-size:1.3rem;
      line-height:1.35;
    }
    .news-list{
      display:grid;
      gap:14px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .news-item{
      display:block;
      border-radius:18px;
      border:1px solid rgba(79,56,57,.10);
      background:rgba(255,255,255,.86);
      padding:16px 16px 15px;
      box-shadow:0 8px 18px rgba(26,17,18,.04);
      transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
    }
    .news-item:hover{
      transform:translateY(-2px);
      border-color:rgba(141,36,56,.18);
      box-shadow:0 14px 24px rgba(26,17,18,.08);
      background:#fff;
    }
    .news-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:10px;
    }
    .news-tag{
      color:var(--primary);
      background:rgba(141,36,56,.10);
      border:1px solid rgba(141,36,56,.12);
      flex:0 0 auto;
    }
    .news-time{
      color:var(--muted-2);
      font-size:.84rem;
      white-space:nowrap;
    }
    .news-title{
      margin:0;
      font-size:1.06rem;
      line-height:1.55;
      color:var(--ink);
    }
    .news-item:hover .news-title{
      color:var(--primary);
    }
    .news-summary{
      margin:8px 0 0;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.8;
    }
    .empty-state{
      padding:26px 18px;
      text-align:center;
      color:var(--muted);
      border-radius:18px;
      background:rgba(255,255,255,.84);
      border:1px dashed rgba(141,36,56,.18);
      font-size:.98rem;
      line-height:1.8;
    }
    .path-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:18px;
    }
    .step-card{
      padding:22px 20px 20px;
      position:relative;
      overflow:hidden;
    }
    .step-card::after{
      content:"";
      position:absolute;
      inset:auto -8px -18px auto;
      width:140px;
      height:140px;
      background:radial-gradient(circle, rgba(215,166,103,.18), transparent 68%);
      pointer-events:none;
    }
    .step-no{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:38px;
      height:38px;
      border-radius:14px;
      background:rgba(141,36,56,.10);
      color:var(--primary);
      font-weight:900;
      margin-bottom:14px;
    }
    .step-card h3{
      margin:0 0 8px;
      font-size:1.05rem;
      line-height:1.45;
    }
    .step-card p{
      margin:0;
      color:var(--muted);
      line-height:1.82;
      font-size:.96rem;
    }
    .guide-layout{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:22px;
      align-items:start;
    }
    .guide-card{
      padding:28px;
    }
    .guide-card h3{
      margin:0 0 10px;
      font-size:1.3rem;
      line-height:1.4;
    }
    .guide-card p{
      margin:0;
      color:var(--muted);
      font-size:.98rem;
      line-height:1.85;
    }
    .guide-bullets{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .guide-bullets li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      line-height:1.75;
      font-size:.96rem;
    }
    .guide-bullets i{
      width:10px;
      height:10px;
      border-radius:50%;
      margin-top:.58em;
      background:var(--primary);
      box-shadow:0 0 0 4px rgba(141,36,56,.10);
      flex:0 0 auto;
    }
    .guide-media{
      padding:0;
      overflow:hidden;
    }
    .guide-media .media-cover{
      aspect-ratio:16/11;
    }
    .guide-media .media-body{
      padding:20px 22px 24px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
      align-items:start;
    }
    details.faq-card{
      padding:18px 20px;
      transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
    }
    details.faq-card:hover{
      transform:translateY(-2px);
      box-shadow:0 16px 28px rgba(31,20,21,.08);
      border-color:rgba(141,36,56,.16);
    }
    details.faq-card[open]{
      border-color:rgba(141,36,56,.18);
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(250,244,236,.98));
    }
    summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:flex-start;
      gap:12px;
      font-weight:800;
      line-height:1.45;
      color:var(--ink);
      outline:none;
    }
    summary::-webkit-details-marker{display:none}
    .faq-q{
      width:36px;
      height:36px;
      border-radius:13px;
      display:grid;
      place-items:center;
      background:rgba(141,36,56,.10);
      color:var(--primary);
      flex:0 0 auto;
      font-size:.98rem;
      font-weight:900;
    }
    .faq-a{
      margin:12px 0 0 48px;
      color:var(--muted);
      line-height:1.85;
      font-size:.96rem;
    }
    .cta-wrap{
      padding-top:12px;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      padding:34px 28px;
      background:
        linear-gradient(180deg, rgba(36,26,27,.96), rgba(26,18,19,.98)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#fff;
    }
    .cta-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(700px 320px at 82% 20%, rgba(177,58,80,.22), transparent 56%),
        radial-gradient(520px 260px at 10% 100%, rgba(215,166,103,.12), transparent 52%);
      pointer-events:none;
    }
    .cta-card-inner{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .cta-card h2{
      margin:0;
      font-size:clamp(1.5rem, 2.6vw, 2.15rem);
      line-height:1.2;
    }
    .cta-card p{
      margin:12px 0 0;
      color:rgba(255,255,255,.82);
      max-width:60ch;
      line-height:1.85;
      font-size:1rem;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
      flex:0 0 auto;
    }
    .cta-actions .btn{
      min-width:152px;
    }
    .btn-light{
      background:rgba(255,255,255,.95);
      color:var(--surface-darker);
      border-color:rgba(255,255,255,.25);
      box-shadow:0 14px 22px rgba(18,12,13,.18);
    }
    .btn-light:hover{
      background:#fff;
      color:var(--primary);
    }
    .btn-outline{
      background:transparent;
      color:#fff;
      border:1px solid rgba(255,255,255,.18);
    }
    .btn-outline:hover{
      background:rgba(255,255,255,.10);
      color:#fff;
    }
    .site-footer{
      background:linear-gradient(180deg, #1d1415 0%, #140e0f 100%);
      color:rgba(255,255,255,.86);
      margin-top:0;
      padding:44px 0 30px;
    }
    .footer-inner{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:16px;
    }
    .footer-brand .brand{
      color:#fff;
    }
    .footer-note{
      margin:0;
      max-width:64ch;
      color:rgba(255,255,255,.72);
      line-height:1.9;
      font-size:.96rem;
    }
    .footer-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .footer-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 14px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.14);
      color:#fff;
      background:rgba(255,255,255,.05);
      font-size:.9rem;
    }
    .footer-links{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:10px 16px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .footer-links a{
      color:rgba(255,255,255,.72);
      display:inline-flex;
      width:fit-content;
      padding:4px 0;
    }
    .footer-links a:hover{
      color:var(--accent);
    }
    .footer-bottom{
      margin-top:26px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      color:rgba(255,255,255,.56);
      font-size:.9rem;
      line-height:1.7;
      flex-wrap:wrap;
    }
    .footer-bottom a{
      color:inherit;
      text-decoration:underline;
      text-underline-offset:2px;
    }
    .footer-bottom a:hover{
      color:#fff;
    }
    .nav-panel{
      display:none;
    }
    .muted{
      color:var(--muted);
    }
    .desktop-only{display:block}
    .mobile-only{display:none}
    @media (max-width: 1120px){
      .hero-inner,
      .feature-grid,
      .news-layout,
      .guide-layout,
      .footer-inner{
        grid-template-columns:1fr;
      }
      .path-grid{
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
      .cta-card-inner{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-actions{
        justify-content:flex-start;
      }
    }
    @media (max-width: 920px){
      :root{--header-h:72px}
      .site-nav,
      .header-action{
        display:none;
      }
      .menu-toggle{
        display:inline-flex;
      }
      .nav-wrap{
        margin-left:auto;
      }
      .nav-panel{
        display:block;
        position:absolute;
        left:16px;
        right:16px;
        top:calc(var(--header-h) + 10px);
        border-radius:22px;
        background:rgba(255,250,244,.98);
        border:1px solid rgba(79,56,57,.12);
        box-shadow:0 20px 40px rgba(24,15,16,.12);
        padding:10px;
        transform:translateY(-8px);
        opacity:0;
        pointer-events:none;
        transition:opacity .22s var(--ease), transform .22s var(--ease);
      }
      .nav-panel.open{
        opacity:1;
        transform:translateY(0);
        pointer-events:auto;
      }
      .nav-panel a{
        display:flex;
        align-items:center;
        justify-content:space-between;
        min-height:48px;
        padding:0 14px;
        border-radius:14px;
        color:var(--ink);
      }
      .nav-panel a + a{
        margin-top:4px;
      }
      .nav-panel a.active{
        background:rgba(141,36,56,.08);
        color:var(--primary);
      }
      section{
        padding:66px 0;
      }
      .hero{
        padding-top:18px;
      }
      .hero-inner{
        padding:24px;
      }
      .hero-collage{
        min-height:auto;
      }
      .hero-side{
        order:-1;
      }
      .notice-box{
        padding:16px;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .section-link{
        margin-top:2px;
      }
      .faq-grid{
        grid-template-columns:1fr;
      }
    }
    @media (max-width: 720px){
      .container{
        width:min(calc(100% - 24px), var(--container));
      }
      .brand-text{
        font-size:.96rem;
      }
      h1{
        max-width:100%;
      }
      .hero-inner{
        gap:22px;
      }
      .hero-collage{
        grid-template-columns:1fr;
      }
      .hero-collage .img-card,
      .hero-collage .stack .img-card{
        min-height:180px;
      }
      .feature-card,
      .info-card,
      .news-panel,
      .guide-card,
      .cta-card,
      details.faq-card{
        padding:20px;
      }
      .path-grid{
        grid-template-columns:1fr;
      }
      .footer-inner{
        gap:20px;
      }
      .footer-links{
        grid-template-columns:1fr;
      }
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
      .hero-actions .btn,
      .cta-actions .btn{
        width:100%;
      }
      .hero-points,
      .hero-trace{
        gap:8px;
      }
      .mini-tag,
      .trace-chip{
        min-height:34px;
        padding:0 12px;
        font-size:.88rem;
      }
      .news-top{
        flex-direction:column;
        align-items:flex-start;
      }
      .news-time{
        white-space:normal;
      }
      .notice-box{
        flex-direction:column;
      }
      .notice-badge{
        width:52px;
        height:52px;
        min-width:52px;
        min-height:52px;
      }
      .faq-a{
        margin-left:0;
      }
      .cta-card-inner{
        gap:18px;
      }
    }
    @media (max-width: 480px){
      .hero-shell{
        border-radius:24px;
      }
      .hero-inner{
        padding:18px;
      }
      .hero-kicker,
      .age-note{
        font-size:.86rem;
      }
      h1{
        font-size:clamp(1.8rem, 8vw, 2.28rem);
      }
      .section-title{
        font-size:1.55rem;
      }
      .section-lead,
      .feature-text,
      .guide-card p,
      .news-summary,
      .faq-a,
      .cta-card p{
        font-size:.95rem;
      }
      .hero-card-body,
      .media-body{
        padding:0 14px 14px;
      }
      .news-item{
        padding:14px;
      }
      .feature-list li{
        padding:12px;
      }
    }

/* roulang page: article */
:root{
      --bg:#f5f1ea;
      --bg-soft:#f8f4ee;
      --surface:#ffffff;
      --surface-2:#fbf6f0;
      --surface-dark:#241a1b;
      --surface-darker:#1a1213;
      --ink:#22191b;
      --muted:#7c6d6e;
      --muted-2:#9a8d8e;
      --line:rgba(79,56,57,.14);
      --line-strong:rgba(79,56,57,.22);
      --primary:#8d2438;
      --primary-2:#b13a50;
      --primary-soft:rgba(141,36,56,.10);
      --accent:#d7a667;
      --accent-soft:#f4e1bf;
      --shadow:0 18px 42px rgba(28,17,18,.10);
      --shadow-strong:0 22px 50px rgba(28,17,18,.16);
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:14px;
      --container:1220px;
      --content:840px;
      --gap:24px;
      --header-h:80px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(1000px 520px at 12% -10%, rgba(141,36,56,.08), transparent 55%),
        radial-gradient(780px 420px at 92% 4%, rgba(215,166,103,.10), transparent 52%),
        linear-gradient(180deg, #faf7f2 0%, var(--bg) 36%, #f3eee6 100%);
      min-height:100vh;
      overflow-x:hidden;
      line-height:1.8;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    *,*::before,*::after{box-sizing:border-box}
    img{
      display:block;
      max-width:100%;
      height:auto;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease), opacity .22s var(--ease);
    }
    a:hover{color:var(--primary)}
    a:focus-visible,
    button:focus-visible,
    summary:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible{
      outline:none;
      box-shadow:0 0 0 4px rgba(141,36,56,.14);
      border-color:rgba(141,36,56,.36) !important;
    }
    button,input,textarea,select{font:inherit}
    button{
      border:0;
      background:none;
      padding:0;
      cursor:pointer;
    }
    .container{
      width:min(calc(100% - 32px), var(--container));
      margin:0 auto;
    }
    .desktop-only{display:flex}
    .mobile-only{display:none}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
      background:rgba(250,247,242,.72);
      border-bottom:1px solid rgba(79,56,57,.08);
    }
    .site-header.is-scrolled{
      background:rgba(248,244,238,.92);
      box-shadow:0 10px 24px rgba(31,19,20,.06);
    }
    .header-inner{
      min-height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:800;
      letter-spacing:.2px;
      color:var(--surface-darker);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg, var(--primary) 0%, #6d1d2d 100%);
      box-shadow:0 10px 18px rgba(141,36,56,.22);
      flex:0 0 auto;
      position:relative;
      overflow:hidden;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:auto;
      background:rgba(255,255,255,.18);
      border-radius:999px;
    }
    .brand-mark::before{
      width:14px;
      height:14px;
      left:10px;
      top:13px;
      box-shadow:16px 0 0 rgba(255,255,255,.18);
    }
    .brand-mark::after{
      width:16px;
      height:16px;
      right:10px;
      bottom:10px;
      opacity:.55;
    }
    .brand-text{
      font-size:1rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:16px;
    }
    .site-nav{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .site-nav a{
      padding:11px 14px;
      border-radius:999px;
      color:var(--muted);
      font-size:.95rem;
      line-height:1;
      border:1px solid transparent;
    }
    .site-nav a:hover,
    .site-nav a:focus-visible{
      color:var(--primary);
      background:rgba(141,36,56,.06);
      border-color:rgba(141,36,56,.10);
    }
    .site-nav a.active{
      color:#fff;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      box-shadow:0 12px 18px rgba(141,36,56,.20);
      border-color:transparent;
    }
    .header-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      color:#fff;
      font-weight:700;
      border:1px solid rgba(255,255,255,.16);
      box-shadow:0 12px 24px rgba(141,36,56,.20);
      white-space:nowrap;
    }
    .header-action:hover{
      transform:translateY(-1px);
      box-shadow:0 16px 28px rgba(141,36,56,.24);
      color:#fff;
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid rgba(79,56,57,.14);
      background:rgba(255,255,255,.68);
      color:var(--ink);
      align-items:center;
      justify-content:center;
      box-shadow:0 10px 20px rgba(28,17,18,.05);
    }
    .menu-toggle span{
      width:18px;
      height:2px;
      background:currentColor;
      position:relative;
      border-radius:999px;
      display:block;
    }
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:999px;
    }
    .menu-toggle span::before{top:-6px}
    .menu-toggle span::after{top:6px}
    .nav-panel{
      display:none;
      padding:0 0 16px;
    }
    .nav-panel a{
      display:flex;
      align-items:center;
      min-height:46px;
      padding:0 16px;
      border-radius:14px;
      color:var(--muted);
      background:rgba(255,255,255,.64);
      border:1px solid rgba(79,56,57,.12);
      margin-top:10px;
      font-weight:600;
    }
    .nav-panel a.active{
      color:#fff;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      border-color:transparent;
      box-shadow:0 12px 18px rgba(141,36,56,.18);
    }
    main{
      position:relative;
      z-index:1;
    }
    .page-section{
      padding:0;
    }
    .article-hero{
      padding:28px 0 26px;
    }
    .breadcrumb-wrap{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:.93rem;
      margin-bottom:16px;
    }
    .breadcrumb-wrap a{
      color:var(--muted);
    }
    .breadcrumb-wrap a:hover{
      color:var(--primary);
    }
    .breadcrumb-wrap .current{
      color:var(--ink);
      font-weight:600;
    }
    .article-hero-shell{
      overflow:hidden;
      border:1px solid rgba(255,255,255,.46);
      border-radius:32px;
      background:
        linear-gradient(135deg, rgba(34,25,27,.88), rgba(34,25,27,.60)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      box-shadow:var(--shadow-strong);
      color:#fff;
      position:relative;
      isolation:isolate;
    }
    .article-hero-shell::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(800px 300px at 85% 0%, rgba(215,166,103,.18), transparent 56%),
        radial-gradient(700px 320px at 0% 100%, rgba(141,36,56,.18), transparent 50%);
      pointer-events:none;
      z-index:-1;
    }
    .article-hero-inner{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);
      gap:28px;
      align-items:center;
      padding:34px;
    }
    .hero-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:max-content;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.16);
      color:#f7f1ea;
      font-size:.92rem;
      letter-spacing:.2px;
      margin-bottom:16px;
    }
    .hero-kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(215,166,103,.18);
    }
    .article-hero h1{
      margin:0;
      font-size:clamp(2rem, 4vw, 3.2rem);
      line-height:1.14;
      letter-spacing:-.02em;
      max-width:12ch;
      text-wrap:balance;
    }
    .hero-lead{
      margin:18px 0 0;
      max-width:56ch;
      font-size:1.05rem;
      line-height:1.9;
      color:rgba(255,255,255,.86);
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px 14px;
      margin-top:20px;
      color:rgba(255,255,255,.82);
      font-size:.95rem;
    }
    .article-meta span{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.12);
    }
    .article-meta span::before{
      content:"";
      width:6px;
      height:6px;
      border-radius:50%;
      background:var(--accent);
    }
    .keyword-chips{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .keyword-chips .chip{
      display:inline-flex;
      align-items:center;
      min-height:36px;
      padding:0 14px;
      border-radius:999px;
      color:#fff;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.08);
      font-size:.9rem;
    }
    .hero-figure{
      display:grid;
      gap:14px;
    }
    .cover-frame{
      margin:0;
      border-radius:24px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.15);
      box-shadow:0 18px 40px rgba(0,0,0,.26);
      background:#22191b;
      position:relative;
    }
    .cover-frame img{
      width:100%;
      aspect-ratio:4/3;
      object-fit:cover;
      transform:scale(1.01);
    }
    .cover-caption{
      font-size:.92rem;
      color:rgba(255,255,255,.78);
      padding:0 2px;
    }
    .reading-tip{
      border-radius:22px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.14);
      padding:16px 18px;
    }
    .reading-tip .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(215,166,103,.18);
      border:1px solid rgba(215,166,103,.24);
      color:#fff;
      font-size:.85rem;
      margin-bottom:10px;
    }
    .reading-tip p{
      margin:0;
      color:rgba(255,255,255,.84);
      font-size:.95rem;
      line-height:1.8;
    }
    .article-body{
      padding:18px 0 0;
    }
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 308px;
      gap:28px;
      align-items:start;
    }
    .article-main{
      min-width:0;
    }
    .content-card,
    .side-card,
    .faq-shell,
    .cta-shell,
    .empty-card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
    }
    .content-card{
      padding:28px;
    }
    .content-head{
      display:flex;
      flex-wrap:wrap;
      align-items:end;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .content-head h2{
      margin:0;
      font-size:1.45rem;
      line-height:1.2;
      color:var(--surface-darker);
    }
    .content-note{
      margin:0;
      color:var(--muted);
      font-size:.96rem;
    }
    .summary-box{
      padding:18px 18px;
      border-radius:20px;
      background:
        linear-gradient(180deg, rgba(244,225,191,.65), rgba(251,246,240,.95));
      border:1px solid rgba(141,36,56,.12);
      color:#4b3b3d;
      font-size:1.02rem;
      line-height:1.9;
      margin-bottom:24px;
    }
    .article-content{
      font-size:1.04rem;
      line-height:1.88;
      color:var(--ink);
      overflow-wrap:anywhere;
    }
    .article-content > * + *{margin-top:1em}
    .article-content h2,
    .article-content h3,
    .article-content h4{
      color:var(--surface-darker);
      line-height:1.35;
      margin:1.9em 0 .7em;
      scroll-margin-top:100px;
    }
    .article-content h2{font-size:1.55rem}
    .article-content h3{font-size:1.2rem}
    .article-content p{
      margin:0;
      color:var(--ink);
    }
    .article-content a{
      color:var(--primary);
      text-decoration:underline;
      text-underline-offset:3px;
      text-decoration-thickness:1.5px;
    }
    .article-content a:hover{
      color:var(--primary-2);
    }
    .article-content ul,
    .article-content ol{
      padding-left:1.2em;
      margin:0;
    }
    .article-content li + li{margin-top:.5em}
    .article-content blockquote{
      margin:1.2em 0;
      padding:18px 18px 18px 20px;
      border-left:4px solid var(--primary);
      background:var(--surface-2);
      border-radius:0 18px 18px 0;
      color:#4e4041;
    }
    .article-content img{
      margin:1.4em 0;
      width:100%;
      border-radius:18px;
      border:1px solid var(--line);
      box-shadow:0 14px 30px rgba(28,17,18,.08);
    }
    .article-content figure{
      margin:1.4em 0;
    }
    .article-content figure figcaption{
      margin-top:10px;
      font-size:.92rem;
      color:var(--muted);
    }
    .article-content table{
      display:block;
      width:100%;
      overflow-x:auto;
      border-collapse:separate;
      border-spacing:0;
      margin:1.4em 0;
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:18px;
    }
    .article-content table th,
    .article-content table td{
      padding:14px 16px;
      border-bottom:1px solid var(--line);
      white-space:nowrap;
      text-align:left;
    }
    .article-content table th{
      background:var(--surface-2);
      color:var(--surface-darker);
      font-weight:700;
    }
    .article-content table tr:last-child td{border-bottom:none}
    .article-content pre{
      overflow:auto;
      padding:18px;
      border-radius:18px;
      background:#1e1718;
      color:#f7f0ea;
      border:1px solid rgba(255,255,255,.08);
    }
    .article-content code{
      font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
      font-size:.95em;
      padding:.12em .36em;
      border-radius:8px;
      background:rgba(141,36,56,.08);
      color:var(--primary);
    }
    .article-content hr{
      border:0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(141,36,56,.22), transparent);
      margin:2em 0;
    }
    .article-content .note-box{
      padding:16px 18px;
      border-radius:18px;
      background:#fcf7ef;
      border:1px solid rgba(215,166,103,.28);
      color:#5a494a;
    }
    .article-content .tip-box{
      padding:16px 18px;
      border-radius:18px;
      background:rgba(141,36,56,.06);
      border:1px solid rgba(141,36,56,.14);
      color:#553d41;
    }
    .article-side{
      position:sticky;
      top:96px;
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:20px;
    }
    .side-card h3{
      margin:0 0 12px;
      font-size:1.06rem;
      line-height:1.3;
      color:var(--surface-darker);
    }
    .side-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .side-list li{
      display:flex;
      gap:10px;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.7;
    }
    .side-list li::before{
      content:"";
      width:9px;
      height:9px;
      margin-top:.55em;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 4px rgba(141,36,56,.10);
      flex:0 0 auto;
    }
    .side-preview{
      display:grid;
      gap:12px;
    }
    .side-preview .preview-img{
      border-radius:18px;
      overflow:hidden;
      border:1px solid var(--line);
    }
    .side-preview .preview-img img{
      width:100%;
      aspect-ratio:16/11;
      object-fit:cover;
    }
    .side-preview .preview-note{
      font-size:.94rem;
      color:var(--muted);
      line-height:1.7;
      margin:0;
    }
    .side-actions{
      display:grid;
      gap:10px;
    }
    .page-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      font-weight:700;
      border:1px solid transparent;
      transition:transform .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
    }
    .page-btn:hover{transform:translateY(-1px)}
    .page-btn.primary{
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      color:#fff;
      box-shadow:0 12px 24px rgba(141,36,56,.18);
    }
    .page-btn.primary:hover{
      color:#fff;
      box-shadow:0 16px 28px rgba(141,36,56,.22);
    }
    .page-btn.secondary{
      background:var(--surface-2);
      border-color:var(--line-strong);
      color:var(--surface-darker);
    }
    .page-btn.secondary:hover{
      background:#f2e8dc;
      color:var(--surface-darker);
    }
    .info-stack{
      display:grid;
      gap:12px;
    }
    .info-chip{
      display:flex;
      align-items:center;
      gap:10px;
      min-height:48px;
      padding:10px 14px;
      border-radius:16px;
      background:var(--surface-2);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:.94rem;
    }
    .info-chip strong{
      color:var(--surface-darker);
    }
    .info-chip .dot{
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(215,166,103,.15);
      flex:0 0 auto;
    }
    .faq-section{
      padding:26px 0 0;
    }
    .section-title{
      margin:0 0 18px;
      font-size:1.7rem;
      line-height:1.25;
      color:var(--surface-darker);
      letter-spacing:-.01em;
    }
    .section-subtitle{
      margin:-6px 0 20px;
      color:var(--muted);
      font-size:1rem;
      line-height:1.8;
      max-width:62ch;
    }
    .faq-shell{
      padding:26px;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:18px;
      background:var(--surface-2);
      overflow:hidden;
      transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
    }
    .faq-item[open]{
      border-color:rgba(141,36,56,.20);
      box-shadow:0 12px 26px rgba(28,17,18,.08);
      background:#fffdf9;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:16px 18px;
      font-weight:700;
      color:var(--surface-darker);
      min-height:58px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary .q{
      display:inline-flex;
      align-items:center;
      gap:10px;
    }
    .faq-item summary .q::before{
      content:attr(data-no);
      width:28px;
      height:28px;
      border-radius:999px;
      display:inline-grid;
      place-items:center;
      background:rgba(141,36,56,.10);
      color:var(--primary);
      font-size:.84rem;
      font-weight:800;
      flex:0 0 auto;
    }
    .faq-item summary .chev{
      width:12px;
      height:12px;
      border-right:2px solid var(--muted);
      border-bottom:2px solid var(--muted);
      transform:rotate(45deg);
      margin-top:-4px;
      transition:transform .22s var(--ease);
      flex:0 0 auto;
    }
    .faq-item[open] summary .chev{
      transform:rotate(225deg);
      margin-top:3px;
    }
    .faq-item .answer{
      padding:0 18px 18px 54px;
      color:var(--muted);
      line-height:1.85;
      font-size:.98rem;
    }
    .cta-section{
      padding:28px 0 0;
    }
    .cta-shell{
      padding:28px;
      color:#fff;
      background:
        linear-gradient(135deg, rgba(26,18,19,.96), rgba(64,25,31,.94)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      border-color:rgba(255,255,255,.08);
      box-shadow:var(--shadow-strong);
      overflow:hidden;
      position:relative;
    }
    .cta-shell::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(520px 220px at 15% 0%, rgba(215,166,103,.20), transparent 58%),
        radial-gradient(520px 220px at 90% 100%, rgba(141,36,56,.18), transparent 56%);
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
    }
    .cta-copy{
      max-width:62ch;
    }
    .cta-copy h2{
      margin:0 0 10px;
      font-size:clamp(1.5rem, 2.5vw, 2.2rem);
      line-height:1.25;
    }
    .cta-copy p{
      margin:0;
      color:rgba(255,255,255,.84);
      line-height:1.8;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
    }
    .cta-actions .page-btn.secondary{
      background:rgba(255,255,255,.10);
      border-color:rgba(255,255,255,.14);
      color:#fff;
    }
    .cta-actions .page-btn.secondary:hover{
      background:rgba(255,255,255,.16);
      color:#fff;
    }
    .site-footer{
      margin-top:72px;
      background:linear-gradient(180deg, #241a1b 0%, #191213 100%);
      color:rgba(255,255,255,.84);
      padding:54px 0 22px;
    }
    .footer-inner{
      display:grid;
      grid-template-columns:minmax(0,1.4fr) minmax(240px,.8fr);
      gap:28px;
      align-items:start;
      padding-bottom:28px;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .footer-brand .brand{
      color:#fff;
    }
    .footer-note{
      margin:16px 0 0;
      color:rgba(255,255,255,.76);
      max-width:62ch;
      line-height:1.9;
      font-size:.98rem;
    }
    .footer-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .footer-pill{
      display:inline-flex;
      align-items:center;
      min-height:36px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
      color:#f2ebe4;
      font-size:.88rem;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px 16px;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      color:rgba(255,255,255,.78);
      min-height:34px;
    }
    .footer-links a:hover{
      color:var(--accent);
    }
    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      padding-top:18px;
      color:rgba(255,255,255,.62);
      font-size:.92rem;
    }
    .empty-wrap{
      padding:44px 0 18px;
    }
    .empty-card{
      padding:38px 28px;
      text-align:center;
      max-width:720px;
      margin:0 auto;
    }
    .empty-mark{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:74px;
      height:74px;
      border-radius:24px;
      background:linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
      color:#fff;
      font-weight:800;
      box-shadow:0 16px 28px rgba(141,36,56,.20);
      margin-bottom:18px;
    }
    .empty-card h1{
      margin:0;
      font-size:clamp(1.7rem, 4vw, 2.4rem);
      line-height:1.2;
      color:var(--surface-darker);
    }
    .empty-card p{
      margin:14px auto 22px;
      max-width:34ch;
      color:var(--muted);
      font-size:1.02rem;
      line-height:1.9;
    }
    .empty-card .page-btn{
      min-width:160px;
    }
    @media (max-width: 1199.98px){
      .article-hero-inner{
        grid-template-columns:1fr .92fr;
      }
      .article-layout{
        grid-template-columns:minmax(0,1fr) 286px;
      }
    }
    @media (max-width: 991.98px){
      .desktop-only{display:none}
      .mobile-only{display:flex}
      .menu-toggle{display:inline-flex}
      .nav-panel{display:block; max-height:0; opacity:0; overflow:hidden; transform:translateY(-8px); transition:max-height .25s var(--ease), opacity .25s var(--ease), transform .25s var(--ease)}
      .nav-panel.is-open{
        max-height:360px;
        opacity:1;
        transform:translateY(0);
      }
      .article-hero-inner{
        grid-template-columns:1fr;
      }
      .article-layout{
        grid-template-columns:1fr;
      }
      .article-side{
        position:static;
      }
      .footer-inner{
        grid-template-columns:1fr;
      }
    }
    @media (max-width: 767.98px){
      :root{--header-h:72px}
      .container{width:min(calc(100% - 22px), var(--container))}
      .header-inner{
        min-height:var(--header-h);
      }
      .brand-text{
        font-size:.98rem;
      }
      .article-hero{
        padding:20px 0 18px;
      }
      .article-hero-inner,
      .content-card,
      .faq-shell,
      .cta-shell,
      .side-card,
      .empty-card{
        padding:20px;
      }
      .article-hero h1{
        max-width:unset;
      }
      .hero-lead{
        font-size:1rem;
      }
      .content-head{
        align-items:flex-start;
      }
      .section-title{
        font-size:1.45rem;
      }
      .faq-item summary{
        padding:15px 16px;
      }
      .faq-item .answer{
        padding:0 16px 16px 50px;
      }
      .footer-links{
        grid-template-columns:1fr;
      }
      .cta-inner{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-actions{
        width:100%;
      }
      .cta-actions .page-btn{
        width:100%;
      }
      .side-actions .page-btn,
      .empty-card .page-btn{
        width:100%;
      }
    }
    @media (max-width: 520px){
      .brand-mark{
        width:38px;
        height:38px;
        border-radius:12px;
      }
      .site-header{
        position:sticky;
      }
      .article-meta span,
      .keyword-chips .chip{
        width:100%;
        justify-content:flex-start;
      }
      .breadcrumb-wrap{
        font-size:.88rem;
        gap:8px;
      }
      .article-hero-inner{
        padding:18px;
      }
      .article-hero h1{
        font-size:clamp(1.7rem, 7vw, 2.2rem);
      }
      .hero-kicker{
        width:100%;
        justify-content:center;
      }
      .cover-caption{
        font-size:.86rem;
      }
      .faq-item summary{
        font-size:.98rem;
      }
      .faq-item .answer{
        padding-left:16px;
      }
      .faq-item summary .q{
        align-items:flex-start;
      }
      .faq-item summary .q::before{
        margin-top:2px;
      }
    }

/* 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}