/* roulang page: index */
:root{
      --bg:#f6f0ec;
      --bg-soft:#fbf7f3;
      --surface:#fffaf6;
      --surface-2:#f0e5df;
      --ink:#21161d;
      --muted:#6f6068;
      --weak:#978991;
      --primary:#6f1d47;
      --primary-2:#8e2f58;
      --primary-dark:#351726;
      --accent:#c58450;
      --accent-soft:#f1dcc8;
      --safe:#3f8c7a;
      --safe-soft:#dceee9;
      --warn:#a96822;
      --warn-soft:#f6e7cc;
      --border:rgba(77,45,61,.15);
      --border-strong:rgba(111,29,71,.28);
      --shadow:0 18px 45px rgba(65,35,46,.12);
      --shadow-soft:0 10px 28px rgba(65,35,46,.08);
      --radius:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --nav-h:76px;
      --trans:180ms ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 4%, rgba(197,132,80,.14), transparent 34%),
        radial-gradient(circle at 92% 14%, rgba(111,29,71,.12), transparent 34%),
        var(--bg);
      line-height:1.75;
      min-width:320px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer;background:none;color:inherit}
    ::selection{background:rgba(111,29,71,.2)}
    :focus-visible{outline:3px solid rgba(197,132,80,.5);outline-offset:3px}

    .container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .section{padding:88px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--border);
      border-radius:999px;
      color:var(--primary);
      background:rgba(255,250,246,.76);
      font-size:13px;
      font-weight:700;
      line-height:1.2;
      box-shadow:0 8px 18px rgba(65,35,46,.05);
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(197,132,80,.16);
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin-top:14px;
      font-size:clamp(28px, 3.1vw, 42px);
      line-height:1.18;
      letter-spacing:-.02em;
      color:var(--ink);
    }
    .section-desc{
      max-width:620px;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
    }
    .muted{color:var(--muted)}

    .top-notice{
      background:linear-gradient(90deg, rgba(53,23,38,.96), rgba(111,29,71,.92));
      color:#fff7ef;
      font-size:13px;
      letter-spacing:.01em;
    }
    .notice-inner{
      width:min(var(--container), calc(100% - 40px));
      margin:auto;
      min-height:40px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .notice-badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:4px 10px;
      border-radius:999px;
      background:rgba(246,231,204,.16);
      color:#ffe2bd;
      white-space:nowrap;
      font-weight:800;
    }
    .notice-text{opacity:.9}
    .notice-link{
      color:#ffe2bd;
      font-weight:700;
      border-bottom:1px solid rgba(255,226,189,.35);
      transition:var(--trans);
      white-space:nowrap;
    }
    .notice-link:hover{color:#fff;border-color:#fff}

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(140%) blur(18px);
      background:rgba(246,240,236,.82);
      border-bottom:1px solid rgba(77,45,61,.1);
    }
    .nav{
      height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--primary-dark);
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      color:#fff;
      background:
        linear-gradient(135deg, var(--primary), var(--primary-dark) 68%),
        var(--primary);
      box-shadow:0 10px 24px rgba(111,29,71,.22);
      flex:0 0 auto;
    }
    .brand-mark span{font-size:13px;font-weight:900}
    .brand-name{
      font-size:18px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      max-width:330px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      list-style:none;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:8px 13px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:background var(--trans), color var(--trans), transform var(--trans);
    }
    .nav-links a:hover{
      color:var(--primary);
      background:rgba(111,29,71,.08);
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:#fff;
      background:var(--primary);
      box-shadow:0 10px 24px rgba(111,29,71,.18);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .age-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:40px;
      padding:8px 13px;
      border-radius:999px;
      border:1px solid rgba(169,104,34,.22);
      background:var(--warn-soft);
      color:#7a4b16;
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .menu-toggle{
      display:none;
      width:44px;height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      background:var(--surface);
    }
    .menu-toggle i,
    .menu-toggle i::before,
    .menu-toggle i::after{
      content:"";
      display:block;
      width:18px;height:2px;
      background:var(--primary);
      border-radius:9px;
      margin:auto;
      position:relative;
      transition:var(--trans);
    }
    .menu-toggle i::before{position:absolute;top:-6px;left:0}
    .menu-toggle i::after{position:absolute;top:6px;left:0}
    .menu-toggle.is-open i{background:transparent}
    .menu-toggle.is-open i::before{top:0;transform:rotate(45deg)}
    .menu-toggle.is-open i::after{top:0;transform:rotate(-45deg)}

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      font-weight:850;
      line-height:1;
      border:1px solid transparent;
      transition:transform var(--trans), box-shadow var(--trans), background var(--trans), color var(--trans), border-color var(--trans);
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{
      color:#fffaf6;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 16px 32px rgba(111,29,71,.22);
    }
    .btn-primary:hover{box-shadow:0 20px 38px rgba(111,29,71,.28)}
    .btn-secondary{
      color:var(--primary);
      background:rgba(255,250,246,.82);
      border-color:var(--border-strong);
    }
    .btn-secondary:hover{
      background:#fff;
      border-color:var(--primary);
      box-shadow:0 12px 26px rgba(65,35,46,.1);
    }
    .btn-dark{
      color:#fff;
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.24);
    }
    .btn-dark:hover{background:rgba(255,255,255,.18)}

    .hero{
      position:relative;
      overflow:hidden;
      color:#fff8f1;
      background:
        linear-gradient(120deg, rgba(35,16,28,.94), rgba(85,27,55,.82)),
        url("/assets/images/backpic/back-1.jpg") center/cover no-repeat;
    }
    .hero::before{
      content:"";
      position:absolute;inset:0;
      background:
        radial-gradient(circle at 78% 16%, rgba(197,132,80,.38), transparent 30%),
        radial-gradient(circle at 26% 88%, rgba(255,250,246,.13), transparent 35%),
        linear-gradient(180deg, rgba(0,0,0,.12), rgba(0,0,0,.26));
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      min-height:690px;
      padding:92px 0 78px;
      display:grid;
      grid-template-columns:minmax(0, 1.06fr) minmax(320px, .72fr);
      align-items:center;
      gap:54px;
    }
    .hero-copy{max-width:760px}
    .hero .eyebrow{
      background:rgba(255,250,246,.11);
      color:#ffe0bd;
      border-color:rgba(255,255,255,.22);
      box-shadow:none;
    }
    .hero-title{
      margin-top:18px;
      font-size:clamp(38px, 5vw, 66px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:900;
      max-width:860px;
    }
    .hero-lead{
      margin-top:22px;
      color:rgba(255,248,241,.84);
      font-size:18px;
      line-height:1.9;
      max-width:710px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:32px;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:28px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(255,250,246,.11);
      border:1px solid rgba(255,255,255,.18);
      color:rgba(255,248,241,.86);
      font-size:13px;
      font-weight:700;
    }
    .hero-panel{
      position:relative;
      border:1px solid rgba(255,255,255,.2);
      border-radius:32px;
      padding:18px;
      background:rgba(255,250,246,.1);
      box-shadow:0 30px 70px rgba(0,0,0,.24);
      backdrop-filter:blur(14px);
    }
    .panel-card{
      border-radius:24px;
      overflow:hidden;
      background:#fff8f1;
      color:var(--ink);
    }
    .panel-image{
      height:205px;
      background:
        linear-gradient(180deg, rgba(35,16,28,.1), rgba(35,16,28,.45)),
        url("/assets/images/coverpic/cover-1.webp") center/cover no-repeat;
      position:relative;
    }
    .panel-image .badge-float{
      position:absolute;
      left:16px;bottom:16px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#7d4a1d;
      font-size:13px;
      font-weight:850;
      line-height:1.2;
    }
    .badge.safe{background:var(--safe-soft);color:#276b5d}
    .badge.deep{background:rgba(111,29,71,.1);color:var(--primary)}
    .panel-body{padding:22px}
    .panel-body h2{
      font-size:22px;
      line-height:1.35;
      margin-bottom:10px;
    }
    .panel-body p{color:var(--muted);font-size:15px}
    .mini-list{
      display:grid;
      gap:12px;
      margin-top:20px;
      list-style:none;
    }
    .mini-list li{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding:13px 0;
      border-top:1px solid rgba(77,45,61,.1);
      color:var(--muted);
      font-size:14px;
    }
    .mini-list strong{color:var(--ink)}

    .index-grid{
      display:grid;
      grid-template-columns:minmax(0, .98fr) minmax(300px, .62fr);
      gap:26px;
      align-items:stretch;
    }
    .index-card,.info-card,.article-card,.faq-item,.proof-card{
      border:1px solid var(--border);
      background:rgba(255,250,246,.86);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      transition:transform var(--trans), box-shadow var(--trans), border-color var(--trans), background var(--trans);
    }
    .index-card:hover,.info-card:hover,.article-card:hover,.proof-card:hover{
      transform:translateY(-4px);
      border-color:var(--border-strong);
      box-shadow:var(--shadow);
      background:#fffaf6;
    }
    .index-card{
      padding:30px;
      display:grid;
      grid-template-columns:1fr 220px;
      gap:28px;
      overflow:hidden;
      position:relative;
    }
    .index-card::after{
      content:"";
      position:absolute;
      width:260px;height:260px;
      right:-112px;bottom:-138px;
      border-radius:50%;
      background:rgba(197,132,80,.15);
    }
    .index-card h3,.info-card h3,.proof-card h3{
      font-size:24px;
      line-height:1.3;
      margin:14px 0 10px;
    }
    .index-card p,.info-card p,.proof-card p{color:var(--muted)}
    .index-visual{
      position:relative;
      z-index:1;
      min-height:260px;
      border-radius:22px;
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(53,23,38,.06), rgba(53,23,38,.48)),
        url("/assets/images/coverpic/cover-2.webp") center/cover no-repeat;
      align-self:stretch;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
    }
    .index-visual span{
      position:absolute;
      left:16px;
      bottom:16px;
      right:16px;
      padding:12px 14px;
      border-radius:16px;
      color:#fff;
      background:rgba(35,16,28,.62);
      backdrop-filter:blur(10px);
      font-size:14px;
      font-weight:800;
    }
    .side-stack{display:grid;gap:18px}
    .info-card{padding:24px}
    .num{
      width:42px;height:42px;
      display:grid;place-items:center;
      border-radius:15px;
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      font-weight:900;
      box-shadow:0 12px 22px rgba(111,29,71,.18);
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-top:18px;
      color:var(--primary);
      font-weight:850;
      transition:gap var(--trans), color var(--trans);
    }
    .text-link:hover{gap:11px;color:var(--primary-dark)}

    .feature-band{
      padding:34px;
      border-radius:32px;
      color:#fff9f3;
      background:
        linear-gradient(135deg, rgba(53,23,38,.94), rgba(92,31,59,.91)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .feature-band::before{
      content:"";
      position:absolute;inset:0;
      background:radial-gradient(circle at 80% 20%, rgba(197,132,80,.3), transparent 32%);
      pointer-events:none;
    }
    .feature-band > *{position:relative}
    .feature-row{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
      margin-top:26px;
    }
    .feature-item{
      padding:20px;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.08);
    }
    .feature-item strong{display:block;font-size:18px;margin-bottom:7px}
    .feature-item p{color:rgba(255,249,243,.78);font-size:14px}

    .latest-wrap{
      display:grid;
      grid-template-columns:330px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .latest-aside{
      position:sticky;
      top:calc(var(--nav-h) + 22px);
      border-radius:28px;
      padding:26px;
      color:#fff9f3;
      background:linear-gradient(155deg, var(--primary-dark), #5b243d);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .latest-aside::after{
      content:"";
      position:absolute;
      width:150px;height:150px;
      right:-54px;bottom:-54px;
      border-radius:50%;
      background:rgba(197,132,80,.22);
    }
    .latest-aside h2{
      position:relative;
      font-size:30px;
      line-height:1.2;
      margin:14px 0 12px;
    }
    .latest-aside p{
      position:relative;
      color:rgba(255,249,243,.78);
      font-size:15px;
    }
    .latest-meta{
      position:relative;
      display:grid;
      gap:10px;
      margin-top:22px;
      list-style:none;
    }
    .latest-meta li{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      font-size:14px;
      color:rgba(255,249,243,.86);
    }
    .article-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .article-card{
      min-height:238px;
      padding:22px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:18px;
    }
    .article-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:14px;
    }
    .article-date{
      color:var(--weak);
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }
    .article-card h3{
      font-size:20px;
      line-height:1.42;
      margin-bottom:10px;
    }
    .article-card p{
      color:var(--muted);
      font-size:15px;
      line-height:1.75;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .article-card .text-link{margin-top:0}
    .empty-state{
      grid-column:1/-1;
      min-height:210px;
      display:grid;
      place-items:center;
      border:1px dashed rgba(111,29,71,.28);
      border-radius:var(--radius);
      background:rgba(255,250,246,.72);
      color:var(--muted);
      font-weight:800;
      text-align:center;
    }
    .empty-state::before{
      content:"○";
      display:block;
      font-size:36px;
      color:var(--accent);
      margin-bottom:8px;
    }

    .safety{
      display:grid;
      grid-template-columns:minmax(0,.8fr) minmax(0,1fr);
      gap:30px;
      align-items:center;
    }
    .safety-media{
      min-height:440px;
      border-radius:32px;
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(53,23,38,.05), rgba(53,23,38,.58)),
        url("/assets/images/coverpic/cover-3.webp") center/cover no-repeat;
      box-shadow:var(--shadow);
      position:relative;
    }
    .safety-media .media-note{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      padding:18px;
      border-radius:20px;
      color:#fff9f3;
      background:rgba(35,16,28,.66);
      backdrop-filter:blur(12px);
      border:1px solid rgba(255,255,255,.16);
    }
    .step-list{
      display:grid;
      gap:16px;
      list-style:none;
    }
    .step{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:16px;
      padding:20px;
      border-radius:var(--radius);
      border:1px solid var(--border);
      background:rgba(255,250,246,.82);
      box-shadow:var(--shadow-soft);
    }
    .step-mark{
      width:48px;height:48px;
      border-radius:17px;
      display:grid;
      place-items:center;
      background:rgba(111,29,71,.1);
      color:var(--primary);
      font-weight:900;
    }
    .step h3{font-size:19px;margin-bottom:5px}
    .step p{color:var(--muted);font-size:15px}

    .proof-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:18px;
    }
    .proof-card{padding:24px}
    .proof-card.large{
      background:
        linear-gradient(135deg, rgba(255,250,246,.9), rgba(241,220,200,.72)),
        var(--surface);
    }
    .proof-stat{
      display:block;
      color:var(--primary);
      font-size:42px;
      line-height:1;
      font-weight:950;
      letter-spacing:-.04em;
      margin-bottom:14px;
    }
    .proof-note{
      margin-top:16px;
      padding-top:16px;
      border-top:1px solid var(--border);
      color:var(--muted);
      font-size:14px;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:360px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .faq-list{display:grid;gap:14px}
    .faq-item{
      overflow:hidden;
      box-shadow:none;
      background:rgba(255,250,246,.72);
    }
    .faq-question{
      width:100%;
      min-height:62px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:19px 22px;
      text-align:left;
      font-weight:900;
      color:var(--ink);
    }
    .faq-question span:first-child{line-height:1.45}
    .faq-icon{
      width:28px;height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(111,29,71,.1);
      color:var(--primary);
      flex:0 0 auto;
      transition:transform var(--trans), background var(--trans);
    }
    .faq-answer{
      display:none;
      padding:0 22px 20px;
      color:var(--muted);
      font-size:15px;
      line-height:1.85;
    }
    .faq-item.is-open{
      border-color:var(--border-strong);
      background:#fffaf6;
      box-shadow:var(--shadow-soft);
    }
    .faq-item.is-open .faq-answer{display:block}
    .faq-item.is-open .faq-icon{
      transform:rotate(45deg);
      background:var(--primary);
      color:#fff;
    }

    .cta{
      padding:0 0 90px;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      padding:42px;
      color:#fff9f3;
      background:
        linear-gradient(130deg, rgba(53,23,38,.96), rgba(111,29,71,.88)),
        url("/assets/images/backpic/back-3.jpg") center/cover no-repeat;
      box-shadow:0 28px 70px rgba(53,23,38,.22);
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .cta-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 84% 0%, rgba(197,132,80,.34), transparent 30%);
      pointer-events:none;
    }
    .cta-card > *{position:relative}
    .cta-card h2{
      font-size:clamp(28px,3.4vw,44px);
      line-height:1.18;
      margin-bottom:12px;
    }
    .cta-card p{
      color:rgba(255,249,243,.78);
      max-width:720px;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }

    .site-footer{
      color:#e8dcd8;
      background:#22131b;
      padding:54px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .7fr .7fr .8fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff8f1;
      font-weight:950;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{box-shadow:none}
    .footer-desc{
      color:rgba(232,220,216,.72);
      max-width:380px;
      font-size:14px;
      line-height:1.85;
    }
    .footer-col h3{
      color:#fff8f1;
      font-size:15px;
      margin-bottom:14px;
    }
    .footer-links{
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(232,220,216,.72);
      font-size:14px;
      transition:color var(--trans), padding-left var(--trans);
    }
    .footer-links a:hover{
      color:#ffe0bd;
      padding-left:4px;
    }
    .footer-note{
      display:inline-flex;
      margin-top:3px;
      padding:8px 11px;
      border-radius:14px;
      background:rgba(246,231,204,.1);
      color:#ffe0bd;
      font-size:13px;
      font-weight:800;
    }
    .copyright{
      padding-top:24px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:rgba(232,220,216,.62);
      font-size:13px;
    }

    @media (max-width:1100px){
      .brand-name{max-width:250px}
      .hero-inner{grid-template-columns:1fr;min-height:auto;padding:76px 0}
      .hero-panel{max-width:620px}
      .latest-wrap,.faq-wrap{grid-template-columns:1fr}
      .latest-aside{position:relative;top:auto}
      .proof-grid{grid-template-columns:1fr 1fr}
      .proof-card.large{grid-column:1/-1}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:860px){
      .nav-links{
        position:absolute;
        left:20px;right:20px;top:calc(var(--nav-h) + 8px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:14px;
        border:1px solid var(--border);
        border-radius:22px;
        background:rgba(255,250,246,.96);
        box-shadow:var(--shadow);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{justify-content:center}
      .menu-toggle{display:grid;place-items:center}
      .age-pill{display:none}
      .index-grid,.safety{grid-template-columns:1fr}
      .index-card{grid-template-columns:1fr}
      .index-visual{min-height:220px}
      .feature-row{grid-template-columns:1fr}
      .article-list{grid-template-columns:1fr}
      .cta-card{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
      .section-head{display:block}
      .section-desc{margin-top:12px}
    }
    @media (max-width:620px){
      .container,.notice-inner{width:min(100% - 28px, var(--container))}
      .notice-inner{align-items:flex-start;flex-direction:column;padding:9px 0;gap:6px}
      .notice-link{display:none}
      :root{--nav-h:68px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-name{max-width:200px;font-size:15px}
      .hero-inner{padding:54px 0 56px}
      .hero-title{font-size:34px}
      .hero-lead{font-size:16px}
      .hero-actions,.cta-actions{display:grid;grid-template-columns:1fr;width:100%}
      .btn{width:100%;min-height:46px}
      .section{padding:58px 0}
      .section-tight{padding:46px 0}
      .index-card,.feature-band,.cta-card{padding:24px;border-radius:26px}
      .safety-media{min-height:330px}
      .step{grid-template-columns:1fr}
      .proof-grid{grid-template-columns:1fr}
      .faq-question{padding:17px 18px}
      .faq-answer{padding:0 18px 18px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --bg:#f6f0ec;
      --bg-soft:#fbf7f3;
      --surface:#fffaf6;
      --surface-2:#f0e5df;
      --ink:#21161d;
      --muted:#6f6068;
      --weak:#978991;
      --primary:#6f1d47;
      --primary-2:#8e2f58;
      --primary-dark:#351726;
      --accent:#c58450;
      --accent-soft:#f1dcc8;
      --safe:#3f8c7a;
      --safe-soft:#dceee9;
      --warn:#a96822;
      --warn-soft:#f6e7cc;
      --border:rgba(77,45,61,.15);
      --border-strong:rgba(111,29,71,.28);
      --shadow:0 18px 45px rgba(65,35,46,.12);
      --shadow-soft:0 10px 28px rgba(65,35,46,.08);
      --radius:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --nav-h:76px;
      --trans: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 8% 4%, rgba(197,132,80,.14), transparent 34%),
        radial-gradient(circle at 92% 14%, rgba(111,29,71,.12), transparent 34%),
        var(--bg);
      line-height:1.75;
      min-width:320px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer;background:none;color:inherit}
    ul,ol{padding-left:1.3em}
    .container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .section{padding:88px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--border);
      border-radius:999px;
      color:var(--primary);
      background:rgba(255,250,246,.76);
      font-size:13px;
      font-weight:700;
      line-height:1.2;
      box-shadow:0 8px 18px rgba(65,35,46,.05);
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(197,132,80,.16);
      flex:0 0 auto;
    }
    .notice-badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:4px 10px;
      border-radius:999px;
      background:rgba(246,231,204,.16);
      color:#ffe2bd;
      white-space:nowrap;
      font-weight:800;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin:14px 0 0;
      font-size:clamp(28px, 3.1vw, 42px);
      line-height:1.18;
      letter-spacing:-.02em;
      color:var(--ink);
      font-weight:850;
    }
    .section-desc{
      max-width:620px;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
      margin:0;
    }
    .muted{color:var(--muted)}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(140%) blur(18px);
      background:rgba(246,240,236,.82);
      border-bottom:1px solid rgba(77,45,61,.1);
    }
    .nav{
      height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--primary-dark);
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-dark) 68%), var(--primary);
      box-shadow:0 10px 24px rgba(111,29,71,.22);
      flex:0 0 auto;
    }
    .brand-mark span{font-size:13px;font-weight:900}
    .brand-name{
      font-size:18px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      max-width:330px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      list-style:none;
      margin:0;
      padding:0;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:8px 13px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:background var(--trans), color var(--trans), transform var(--trans);
    }
    .nav-links a:hover{
      color:var(--primary);
      background:rgba(111,29,71,.08);
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:#fff;
      background:var(--primary);
      box-shadow:0 10px 24px rgba(111,29,71,.18);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .age-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:40px;
      padding:8px 13px;
      border-radius:999px;
      border:1px solid rgba(169,104,34,.22);
      background:var(--warn-soft);
      color:#7a4b16;
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
      transition:transform var(--trans), background var(--trans), border-color var(--trans);
    }
    .age-pill:hover{transform:translateY(-1px);background:#f9edda;border-color:rgba(169,104,34,.36)}
    .menu-toggle{
      display:none;
      width:44px;height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      background:var(--surface);
    }
    .menu-toggle i,
    .menu-toggle i::before,
    .menu-toggle i::after{
      content:"";
      display:block;
      width:18px;height:2px;
      background:var(--primary);
      border-radius:9px;
      margin:auto;
      position:relative;
      transition:var(--trans);
    }
    .menu-toggle i::before{position:absolute;top:-6px;left:0}
    .menu-toggle i::after{position:absolute;top:6px;left:0}
    .menu-toggle.is-open i{background:transparent}
    .menu-toggle.is-open i::before{top:0;transform:rotate(45deg)}
    .menu-toggle.is-open i::after{top:0;transform:rotate(-45deg)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      font-weight:850;
      line-height:1;
      border:1px solid transparent;
      transition:transform var(--trans), box-shadow var(--trans), background var(--trans), color var(--trans), border-color var(--trans);
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible,
    .nav-links a:focus-visible,
    .brand:focus-visible,
    .age-pill:focus-visible,
    .footer-links a:focus-visible,
    .breadcrumb a:focus-visible,
    .article-content a:focus-visible{
      outline:3px solid rgba(197,132,80,.42);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fffaf6;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 16px 32px rgba(111,29,71,.22);
    }
    .btn-primary:hover{box-shadow:0 20px 40px rgba(111,29,71,.28);color:#fff}
    .btn-secondary{
      color:var(--primary);
      background:rgba(255,250,246,.72);
      border-color:var(--border-strong);
    }
    .btn-secondary:hover{background:#fff4eb;border-color:rgba(111,29,71,.42);color:var(--primary-dark)}
    .top-notice{
      background:linear-gradient(90deg, var(--primary-dark), #4a1b31);
      color:#f9ece7;
      font-size:13px;
    }
    .top-notice .container{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:9px 0;
    }
    .top-notice p{margin:0;color:#f3dcd3}
    .article-hero{
      position:relative;
      overflow:hidden;
      color:#fffaf6;
      background:
        linear-gradient(135deg, rgba(35,16,27,.92), rgba(87,28,56,.78)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .article-hero::after{
      content:"";
      position:absolute;
      inset:auto -10% -45% -10%;
      height:260px;
      background:radial-gradient(circle, rgba(197,132,80,.26), transparent 62%);
      pointer-events:none;
    }
    .article-hero-inner{
      position:relative;
      z-index:1;
      padding:72px 0 58px;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin-bottom:28px;
      color:#ead7cf;
      font-size:14px;
    }
    .breadcrumb a{
      color:#fff5ef;
      font-weight:800;
      transition:color var(--trans), opacity var(--trans);
    }
    .breadcrumb a:hover{color:#ffd6a8}
    .breadcrumb .sep{opacity:.55}
    .article-hero-grid{
      display:grid;
      grid-template-columns:minmax(0, 1fr) 360px;
      gap:42px;
      align-items:end;
    }
    .article-labels{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:18px;
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(255,250,246,.16);
      background:rgba(255,250,246,.1);
      color:#fff4e9;
      font-size:13px;
      font-weight:800;
      backdrop-filter:blur(10px);
    }
    .badge-soft.warn{background:rgba(246,231,204,.16);color:#ffe2bd}
    .article-title{
      max-width:860px;
      margin:0;
      font-size:clamp(32px, 5vw, 58px);
      line-height:1.16;
      letter-spacing:-.035em;
      font-weight:900;
      color:#fffaf6;
    }
    .article-summary{
      max-width:820px;
      margin:20px 0 0;
      color:#ead9d1;
      font-size:17px;
      line-height:1.9;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
      color:#f4ded3;
      font-size:14px;
    }
    .meta-item{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border:1px solid rgba(255,250,246,.14);
      border-radius:999px;
      background:rgba(255,250,246,.08);
    }
    .hero-side-card{
      border:1px solid rgba(255,250,246,.16);
      border-radius:var(--radius);
      background:rgba(255,250,246,.1);
      box-shadow:0 22px 60px rgba(0,0,0,.22);
      backdrop-filter:blur(16px);
      overflow:hidden;
    }
    .hero-side-card img{
      width:100%;
      height:180px;
      object-fit:cover;
      filter:saturate(.94) contrast(1.04);
    }
    .side-card-body{padding:20px}
    .side-card-body h2{
      margin:0 0 10px;
      font-size:20px;
      line-height:1.35;
      font-weight:900;
      color:#fffaf6;
    }
    .side-card-body p{
      margin:0;
      color:#ead9d1;
      font-size:14px;
      line-height:1.8;
    }
    .article-shell{
      display:grid;
      grid-template-columns:minmax(0, 820px) 320px;
      gap:42px;
      align-items:start;
      padding-top:74px;
    }
    .article-card{
      background:rgba(255,250,246,.9);
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .article-content{
      padding:44px;
      font-size:17px;
      color:#352830;
      line-height:1.88;
    }
    .article-content h2{
      margin:38px 0 16px;
      font-size:30px;
      line-height:1.28;
      font-weight:900;
      color:var(--primary-dark);
      letter-spacing:-.02em;
    }
    .article-content h3{
      margin:30px 0 12px;
      font-size:22px;
      line-height:1.35;
      font-weight:850;
      color:var(--ink);
    }
    .article-content p{margin:0 0 20px}
    .article-content a{
      color:var(--primary);
      font-weight:800;
      border-bottom:1px solid rgba(111,29,71,.28);
      transition:color var(--trans), border-color var(--trans);
    }
    .article-content a:hover{color:var(--primary-2);border-color:var(--primary-2)}
    .article-content blockquote{
      margin:28px 0;
      padding:20px 22px;
      border-left:4px solid var(--accent);
      border-radius:0 var(--radius-sm) var(--radius-sm) 0;
      background:#fbefe5;
      color:#5c3b48;
      font-weight:650;
    }
    .article-content img{
      width:auto;
      max-width:100%;
      height:auto;
      margin:28px auto;
      border-radius:18px;
      border:1px solid var(--border);
      box-shadow:var(--shadow-soft);
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:26px 0;
      overflow:hidden;
      border:1px solid var(--border);
      border-radius:16px;
      background:#fffaf6;
      font-size:15px;
    }
    .article-content th,
    .article-content td{
      padding:13px 15px;
      border-bottom:1px solid var(--border);
      vertical-align:top;
    }
    .article-content th{
      background:#f3e5dc;
      color:var(--primary-dark);
      font-weight:900;
    }
    .article-content tr:last-child td{border-bottom:0}
    .article-content pre{
      overflow:auto;
      padding:18px;
      border-radius:16px;
      background:#251722;
      color:#f9ede7;
      line-height:1.65;
      font-size:14px;
    }
    .article-content code{
      padding:.15em .38em;
      border-radius:8px;
      background:#f1e2dc;
      color:#71314e;
    }
    .article-content pre code{
      padding:0;
      background:transparent;
      color:inherit;
    }
    .not-found{
      padding:58px 44px;
      text-align:center;
    }
    .not-found-icon{
      width:72px;
      height:72px;
      display:grid;
      place-items:center;
      margin:0 auto 18px;
      border-radius:24px;
      background:var(--warn-soft);
      color:#7a4b16;
      font-weight:900;
      font-size:22px;
      box-shadow:var(--shadow-soft);
    }
    .not-found h2{
      margin:0 0 12px;
      font-size:30px;
      font-weight:900;
      color:var(--primary-dark);
    }
    .not-found p{
      margin:0 auto 24px;
      max-width:520px;
      color:var(--muted);
    }
    .article-sidebar{
      position:sticky;
      top:calc(var(--nav-h) + 24px);
      display:grid;
      gap:18px;
    }
    .side-panel{
      border:1px solid var(--border);
      border-radius:var(--radius);
      background:rgba(255,250,246,.82);
      box-shadow:var(--shadow-soft);
      padding:22px;
    }
    .side-panel.dark{
      color:#fffaf6;
      background:linear-gradient(145deg, var(--primary-dark), #4b1d33);
      border-color:rgba(255,250,246,.12);
    }
    .side-panel h2,
    .side-panel h3{
      margin:0 0 12px;
      font-size:19px;
      line-height:1.35;
      font-weight:900;
    }
    .side-panel p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.85;
    }
    .side-panel.dark p{color:#edd9d1}
    .quick-list{
      display:grid;
      gap:10px;
      margin:14px 0 0;
      padding:0;
      list-style:none;
    }
    .quick-list li{
      display:flex;
      gap:10px;
      padding:11px 12px;
      border-radius:14px;
      background:rgba(111,29,71,.06);
      color:#4c3541;
      font-size:14px;
      font-weight:700;
    }
    .quick-list li::before{
      content:"";
      width:8px;height:8px;
      margin-top:9px;
      border-radius:50%;
      background:var(--accent);
      flex:0 0 auto;
    }
    .safety-strip{
      margin-top:54px;
      border:1px solid rgba(63,140,122,.24);
      border-radius:var(--radius);
      background:linear-gradient(135deg, rgba(220,238,233,.9), rgba(255,250,246,.86));
      box-shadow:var(--shadow-soft);
      padding:26px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:20px;
      align-items:center;
    }
    .safety-strip h2{
      margin:0 0 8px;
      font-size:24px;
      font-weight:900;
      color:#1f5f52;
    }
    .safety-strip p{
      margin:0;
      color:#4f6a63;
      line-height:1.85;
    }
    .related-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
    }
    .related-card{
      position:relative;
      overflow:hidden;
      min-height:260px;
      border:1px solid var(--border);
      border-radius:var(--radius);
      background:var(--surface);
      box-shadow:var(--shadow-soft);
      transition:transform var(--trans), box-shadow var(--trans), border-color var(--trans);
    }
    .related-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:var(--border-strong);
    }
    .related-card img{
      width:100%;
      height:150px;
      object-fit:cover;
    }
    .related-card .body{padding:22px}
    .related-card h3{
      margin:0 0 10px;
      font-size:21px;
      line-height:1.35;
      font-weight:900;
      color:var(--ink);
    }
    .related-card p{
      margin:0 0 16px;
      color:var(--muted);
      line-height:1.85;
    }
    .card-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--primary);
      font-weight:900;
      font-size:14px;
    }
    .card-link::after{content:"→";transition:transform var(--trans)}
    .related-card:hover .card-link::after{transform:translateX(3px)}
    .guide-grid{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:20px;
    }
    .guide-card{
      padding:24px;
      border-radius:var(--radius);
      border:1px solid var(--border);
      background:rgba(255,250,246,.84);
      box-shadow:var(--shadow-soft);
    }
    .guide-num{
      width:42px;height:42px;
      display:grid;place-items:center;
      margin-bottom:16px;
      border-radius:15px;
      background:var(--accent-soft);
      color:#7b461c;
      font-weight:900;
    }
    .guide-card h3{
      margin:0 0 10px;
      font-size:20px;
      font-weight:900;
    }
    .guide-card p{
      margin:0;
      color:var(--muted);
      line-height:1.8;
      font-size:15px;
    }
    .faq-list{
      display:grid;
      gap:14px;
      max-width:920px;
      margin:0 auto;
    }
    .faq-item{
      border:1px solid var(--border);
      border-radius:var(--radius-md);
      background:rgba(255,250,246,.86);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:20px 22px;
      text-align:left;
      font-weight:900;
      color:var(--ink);
    }
    .faq-question span:last-child{
      width:28px;height:28px;
      display:grid;place-items:center;
      border-radius:50%;
      background:rgba(111,29,71,.08);
      color:var(--primary);
      transition:transform var(--trans), background var(--trans);
      flex:0 0 auto;
    }
    .faq-item.active .faq-question span:last-child{
      transform:rotate(45deg);
      background:var(--primary);
      color:#fff;
    }
    .faq-answer{
      display:none;
      padding:0 22px 20px;
      color:var(--muted);
      line-height:1.85;
    }
    .faq-item.active .faq-answer{display:block}
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:calc(var(--radius) + 8px);
      background:
        linear-gradient(135deg, rgba(53,23,38,.96), rgba(111,29,71,.88)),
        url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      color:#fffaf6;
      box-shadow:0 24px 70px rgba(65,35,46,.2);
      padding:44px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:26px;
      align-items:center;
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      width:260px;height:260px;
      right:-70px;top:-90px;
      border-radius:50%;
      background:rgba(197,132,80,.22);
    }
    .cta-panel > *{position:relative;z-index:1}
    .cta-panel h2{
      margin:0 0 12px;
      font-size:clamp(28px, 3vw, 40px);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .cta-panel p{
      margin:0;
      max-width:720px;
      color:#ead9d1;
      line-height:1.85;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .site-footer{
      margin-top:88px;
      padding:62px 0 26px;
      color:#ead9d1;
      background:linear-gradient(180deg, #2d1724, #1f121b);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr .8fr .8fr 1fr;
      gap:34px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fffaf6;
      font-size:18px;
      font-weight:900;
      margin-bottom:16px;
    }
    .footer-desc{
      margin:0;
      max-width:420px;
      color:#cbb7c0;
      font-size:14px;
      line-height:1.85;
    }
    .footer-col h3{
      margin:0 0 14px;
      color:#fffaf6;
      font-size:16px;
      font-weight:900;
    }
    .footer-links{
      list-style:none;
      display:grid;
      gap:10px;
      padding:0;
      margin:0;
    }
    .footer-links a{
      color:#cbb7c0;
      font-size:14px;
      transition:color var(--trans), padding-left var(--trans);
    }
    .footer-links a:hover{
      color:#ffd6a8;
      padding-left:3px;
    }
    .footer-note{
      display:inline-flex;
      padding:8px 12px;
      border-radius:999px;
      color:#ffe1b8;
      background:rgba(197,132,80,.14);
      border:1px solid rgba(197,132,80,.24);
      font-size:13px;
      font-weight:900;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      margin-top:42px;
      padding-top:22px;
      border-top:1px solid rgba(255,250,246,.1);
      color:#a9959e;
      font-size:13px;
      flex-wrap:wrap;
    }
    @media (max-width:1080px){
      .brand-name{max-width:240px}
      .nav-links a{padding-inline:10px}
      .article-hero-grid{grid-template-columns:1fr}
      .hero-side-card{max-width:520px}
      .article-shell{grid-template-columns:1fr}
      .article-sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-grid > div:first-child{grid-column:1/-1}
    }
    @media (max-width:860px){
      :root{--nav-h:68px}
      .container{width:min(var(--container), calc(100% - 28px))}
      .top-notice .container{align-items:flex-start;flex-direction:column;gap:6px}
      .menu-toggle{display:grid;place-items:center}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(var(--nav-h) + 8px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border:1px solid var(--border);
        border-radius:20px;
        background:rgba(255,250,246,.96);
        box-shadow:var(--shadow);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{justify-content:center}
      .article-hero-inner{padding:48px 0 42px}
      .article-summary{font-size:16px}
      .article-content{padding:30px 24px;font-size:16px}
      .article-content h2{font-size:26px}
      .article-sidebar{grid-template-columns:1fr}
      .safety-strip{grid-template-columns:1fr}
      .related-grid{grid-template-columns:1fr}
      .guide-grid{grid-template-columns:1fr}
      .cta-panel{grid-template-columns:1fr;padding:32px 24px}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:560px){
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-name{max-width:172px;font-size:16px}
      .age-pill{display:none}
      .section{padding:58px 0}
      .section-tight{padding:46px 0}
      .section-head{display:block}
      .article-title{font-size:clamp(30px, 9vw, 38px)}
      .meta-row{gap:8px}
      .meta-item{width:100%;justify-content:center}
      .article-content{padding:26px 18px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .not-found{padding:42px 20px}
      .btn{width:100%}
      .cta-actions{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:grid}
    }

/* 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}