/* roulang page: index */
:root{
      --bg:#f6f1ea;
      --bg-soft:#fffaf3;
      --surface:#ffffff;
      --surface-2:#241b18;
      --surface-3:#31231e;
      --text:#211a17;
      --muted:#70645c;
      --muted-2:#9b8c81;
      --line:#e8ddd2;
      --line-dark:rgba(255,255,255,.13);
      --primary:#8f3f26;
      --primary-2:#b4542d;
      --accent:#d69a3a;
      --accent-soft:#fff0cc;
      --green:#2e7d5b;
      --red:#b83a2f;
      --radius-sm:10px;
      --radius:18px;
      --radius-lg:28px;
      --shadow:0 18px 45px rgba(83,52,32,.10);
      --shadow-hover:0 24px 55px rgba(83,52,32,.16);
      --container:1180px;
      --nav-h:76px;
      --ease:all .22s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 2%, rgba(214,154,58,.18), transparent 28%),
        radial-gradient(circle at 92% 6%, rgba(143,63,38,.14), transparent 32%),
        linear-gradient(180deg,#fbf6ef 0%,var(--bg) 42%,#f7efe5 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(143,63,38,.18);color:var(--primary)}
    .page-wrap{overflow:hidden}
    .site-container{
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto;
    }
    .section{
      padding:82px 0;
      position:relative;
    }
    .section-tight{padding:58px 0}
    .section-title{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-size:14px;
      font-weight:800;
      letter-spacing:.04em;
      margin-bottom:10px;
    }
    .section-kicker i{color:var(--accent)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      font-size:clamp(38px,6vw,76px);
      line-height:1.05;
      letter-spacing:-.055em;
      font-weight:950;
      margin-bottom:22px;
    }
    h2{
      font-size:clamp(28px,3.6vw,46px);
      line-height:1.16;
      letter-spacing:-.035em;
      font-weight:900;
      margin-bottom:0;
    }
    h3{
      font-size:21px;
      line-height:1.35;
      font-weight:850;
      margin-bottom:10px;
    }
    p{color:var(--muted)}
    .lead{
      font-size:18px;
      color:#5e5149;
      line-height:1.9;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:80;
      height:var(--nav-h);
      display:flex;
      align-items:center;
      background:rgba(255,250,243,.82);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(232,221,210,.88);
      box-shadow:0 8px 26px rgba(50,32,20,.04);
    }
    .nav-shell{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      height:100%;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      color:var(--text);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background:linear-gradient(145deg,var(--surface-2),#7a351f);
      display:grid;
      place-items:center;
      color:#ffe2a4;
      box-shadow:0 12px 28px rgba(143,63,38,.22);
      flex:0 0 auto;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      gap:1px;
      min-width:0;
    }
    .brand-name{
      font-weight:900;
      font-size:15px;
      line-height:1.15;
      max-width:260px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-note{
      color:var(--muted-2);
      font-size:12px;
      font-weight:700;
    }
    .nav-center{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.58);
      border-radius:999px;
    }
    .nav-link{
      padding:10px 17px;
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      color:#5d5049;
    }
    .nav-link:hover,
    .nav-link.active{
      background:var(--surface-2);
      color:#fff7ec;
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }
    .search-mini{
      width:230px;
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 14px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.72);
      color:var(--muted);
    }
    .search-mini input{
      border:0;
      outline:0;
      box-shadow:none;
      background:transparent;
      margin:0;
      padding:0;
      height:auto;
      color:var(--text);
      font-size:14px;
    }
    .search-mini input:focus{box-shadow:none;background:transparent}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fffaf3;
      color:var(--text);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:44px;
      padding:12px 18px;
      border-radius:999px;
      font-weight:850;
      border:1px solid transparent;
      transition:var(--ease);
      line-height:1;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff8ef;
      box-shadow:0 14px 28px rgba(143,63,38,.22);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 36px rgba(143,63,38,.3);
    }
    .btn-secondary{
      background:#fffaf3;
      color:var(--surface-2);
      border-color:var(--line);
    }
    .btn-secondary:hover{
      border-color:rgba(143,63,38,.35);
      transform:translateY(-2px);
      box-shadow:0 12px 28px rgba(83,52,32,.1);
    }
    .btn-dark{
      background:var(--surface-2);
      color:#fff7ec;
    }
    .btn-dark:hover{
      background:#3a2822;
      color:#fff;
      transform:translateY(-2px);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 10px;
      border-radius:999px;
      font-size:12px;
      line-height:1;
      font-weight:850;
      color:var(--primary);
      background:#fff4e3;
      border:1px solid rgba(214,154,58,.28);
    }
    .badge.dark{
      color:#ffe3ac;
      background:rgba(255,255,255,.08);
      border-color:var(--line-dark);
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:5px 9px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      color:#76513f;
      background:#f8ead8;
    }

    .hero{
      padding:78px 0 50px;
      min-height:calc(100vh - var(--nav-h));
      display:flex;
      align-items:center;
      background:
        linear-gradient(90deg, rgba(33,26,23,.90), rgba(33,26,23,.60) 46%, rgba(33,26,23,.18)),
        radial-gradient(circle at 80% 26%, rgba(214,154,58,.52), transparent 20%),
        linear-gradient(135deg,#241b18 0%,#583120 48%,#d4a75f 100%);
      color:#fff7ef;
      position:relative;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
      background-size:54px 54px;
      mask-image:linear-gradient(90deg,#000,transparent 72%);
      opacity:.72;
      pointer-events:none;
    }
    .hero:after{
      content:"";
      position:absolute;
      right:-12%;
      bottom:-34%;
      width:650px;
      height:650px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(255,224,157,.32),transparent 62%);
      filter:blur(8px);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      align-items:center;
    }
    .hero-copy{padding:42px 0}
    .hero h1 span{
      display:block;
      color:#ffd889;
    }
    .hero .lead{
      color:rgba(255,247,239,.78);
      max-width:760px;
      margin-bottom:26px;
    }
    .hero-points{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:24px 0 30px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
    }
    .hero-panel{
      background:rgba(255,250,243,.10);
      border:1px solid rgba(255,255,255,.16);
      border-radius:34px;
      padding:18px;
      backdrop-filter:blur(20px);
      box-shadow:0 30px 80px rgba(0,0,0,.22);
    }
    .screen-card{
      background:#fffaf3;
      color:var(--text);
      border-radius:26px;
      padding:24px;
      overflow:hidden;
      position:relative;
    }
    .screen-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding-bottom:16px;
      border-bottom:1px solid var(--line);
      margin-bottom:18px;
    }
    .screen-dots{display:flex;gap:7px}
    .screen-dots i{
      width:10px;height:10px;border-radius:50%;display:block;background:#e7c7a6;
    }
    .screen-dots i:nth-child(2){background:#d69a3a}
    .screen-dots i:nth-child(3){background:#8f3f26}
    .risk-meter{
      height:14px;
      border-radius:999px;
      overflow:hidden;
      background:#efe2d6;
      margin:16px 0;
    }
    .risk-meter span{
      display:block;
      width:76%;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--green),var(--accent),var(--red));
    }
    .screen-list{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .screen-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:13px 14px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
    }
    .screen-row strong{font-size:14px}
    .screen-row small{color:var(--muted);font-weight:700}

    .metric-strip{
      margin-top:-36px;
      position:relative;
      z-index:3;
    }
    .metric-wrap{
      background:rgba(255,250,243,.92);
      border:1px solid var(--line);
      border-radius:30px;
      box-shadow:var(--shadow);
      padding:16px;
    }
    .metric-card{
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid rgba(232,221,210,.82);
      height:100%;
      transition:var(--ease);
    }
    .metric-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
    }
    .metric-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      margin-bottom:14px;
      color:var(--muted);
      font-size:13px;
      font-weight:800;
    }
    .metric-num{
      font-size:34px;
      line-height:1;
      font-weight:950;
      letter-spacing:-.04em;
      color:var(--surface-2);
      margin-bottom:8px;
    }
    .metric-change{
      font-size:12px;
      font-weight:850;
      color:var(--green);
    }

    .intro-card{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:34px;
      box-shadow:var(--shadow);
      height:100%;
    }
    .intro-card.featured{
      background:linear-gradient(145deg,#fffaf3,#fff);
    }
    .icon-box{
      width:48px;height:48px;
      display:grid;place-items:center;
      border-radius:16px;
      color:#fff7ec;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      margin-bottom:18px;
    }
    .content-flow{
      display:grid;
      gap:14px;
      margin-top:22px;
    }
    .flow-item{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:14px;
      align-items:flex-start;
      padding:16px;
      border:1px solid var(--line);
      border-radius:18px;
      background:#fffaf3;
    }
    .flow-no{
      width:42px;height:42px;
      border-radius:14px;
      display:grid;place-items:center;
      color:#fff;
      background:var(--surface-2);
      font-weight:900;
    }

    .capability-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:22px;
    }
    .capability-stack{
      display:grid;
      gap:22px;
    }
    .cap-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:28px;
      box-shadow:0 14px 38px rgba(83,52,32,.07);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .cap-card:after{
      content:"";
      position:absolute;
      width:150px;height:150px;
      right:-68px;top:-68px;
      border-radius:50%;
      background:rgba(214,154,58,.13);
    }
    .cap-card:hover{
      transform:translateY(-5px);
      border-color:rgba(143,63,38,.32);
      box-shadow:var(--shadow-hover);
    }
    .cap-card.large{
      min-height:100%;
      background:
        linear-gradient(145deg,rgba(36,27,24,.96),rgba(95,50,31,.94)),
        var(--surface-2);
      color:#fff7ec;
    }
    .cap-card.large p{color:rgba(255,247,236,.74)}
    .cap-list{
      list-style:none;
      padding:0;
      margin:24px 0 0;
      display:grid;
      gap:12px;
    }
    .cap-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:inherit;
    }
    .cap-list i{
      margin-top:5px;
      color:var(--accent);
    }

    .compare-board{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:34px;
      padding:20px;
      box-shadow:var(--shadow);
    }
    .compare-col{
      padding:28px;
      border-radius:26px;
    }
    .compare-col.before{
      background:#fbf3eb;
      border:1px solid #eadbcb;
    }
    .compare-col.after{
      color:#fff7ec;
      background:linear-gradient(145deg,#231916,#813a22);
    }
    .compare-col.after p{color:rgba(255,247,236,.75)}
    .check-list{
      list-style:none;
      margin:20px 0 0;
      padding:0;
      display:grid;
      gap:13px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:inherit;
    }
    .check-list i{
      margin-top:5px;
      color:var(--accent);
    }
    .before .check-list i{color:var(--red)}

    .media-band{
      padding:54px 0;
      background:var(--surface-2);
      color:#fff7ec;
      position:relative;
      overflow:hidden;
    }
    .media-band:before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 30% 20%,rgba(214,154,58,.22),transparent 30%);
      opacity:.9;
    }
    .media-band .site-container{position:relative;z-index:1}
    .media-title{
      display:flex;
      justify-content:space-between;
      gap:20px;
      align-items:flex-end;
      margin-bottom:24px;
    }
    .media-title p{color:rgba(255,247,236,.68);max-width:560px;margin-bottom:0}
    .slide-row{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:18px;
    }
    .visual-card{
      min-height:250px;
      border-radius:28px;
      padding:24px;
      border:1px solid rgba(255,255,255,.13);
      background:
        linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.48)),
        radial-gradient(circle at 70% 20%,rgba(214,154,58,.42),transparent 28%),
        linear-gradient(135deg,#6f311e,#241b18);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      transition:var(--ease);
    }
    .visual-card:hover{transform:translateY(-4px);border-color:rgba(255,216,137,.45)}
    .visual-card:nth-child(2){background:linear-gradient(135deg,#2d211d,#8f3f26)}
    .visual-card:nth-child(3){background:linear-gradient(135deg,#3f2a20,#d69a3a)}
    .visual-card p{color:rgba(255,247,236,.78);margin-bottom:0}

    .news-list{
      display:grid;
      gap:16px;
    }
    .news-item{
      display:grid;
      grid-template-columns:160px 1fr auto;
      align-items:center;
      gap:22px;
      padding:20px;
      border:1px solid var(--line);
      border-radius:24px;
      background:#fff;
      box-shadow:0 10px 28px rgba(83,52,32,.05);
      transition:var(--ease);
    }
    .news-item:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(143,63,38,.3);
    }
    .news-meta{
      display:flex;
      flex-direction:column;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      font-weight:800;
    }
    .news-main h3{
      margin-bottom:6px;
      font-size:20px;
    }
    .news-main p{
      margin-bottom:0;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .news-arrow{
      width:44px;height:44px;
      border-radius:50%;
      display:grid;place-items:center;
      color:var(--primary);
      background:#fff4e3;
      transition:var(--ease);
    }
    .news-item:hover .news-arrow{
      background:var(--primary);
      color:#fff;
      transform:translateX(3px);
    }
    .empty-state{
      padding:42px;
      border-radius:28px;
      border:1px dashed rgba(143,63,38,.32);
      background:#fffaf3;
      text-align:center;
      color:var(--muted);
    }
    .empty-state i{
      display:block;
      font-size:28px;
      color:var(--accent);
      margin-bottom:10px;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:30px;
      align-items:start;
    }
    .faq-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      overflow:hidden;
      box-shadow:0 12px 30px rgba(83,52,32,.06);
    }
    .faq-item + .faq-item{border-top:1px solid var(--line)}
    .faq-q{
      width:100%;
      border:0;
      background:#fff;
      padding:22px 24px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      text-align:left;
      font-weight:900;
      color:var(--text);
      transition:var(--ease);
    }
    .faq-q:hover{background:#fff7ed;color:var(--primary)}
    .faq-q i{transition:var(--ease);color:var(--accent)}
    .faq-item.active .faq-q i{transform:rotate(180deg)}
    .faq-a{
      display:none;
      padding:0 24px 22px;
      color:var(--muted);
    }
    .faq-item.active .faq-a{display:block}
    .faq-note{
      padding:30px;
      border-radius:28px;
      color:#fff7ec;
      background:linear-gradient(145deg,#241b18,#7f3a22);
      position:sticky;
      top:100px;
    }
    .faq-note p{color:rgba(255,247,236,.76)}

    .cta-section{
      padding:30px 0 90px;
    }
    .cta-panel{
      display:grid;
      grid-template-columns:1fr .9fr;
      gap:28px;
      align-items:stretch;
      border-radius:36px;
      padding:26px;
      background:
        radial-gradient(circle at 12% 20%,rgba(214,154,58,.20),transparent 26%),
        linear-gradient(145deg,#fffaf3,#fff);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .cta-copy{
      padding:28px;
    }
    .form-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:28px;
      padding:26px;
      box-shadow:0 15px 36px rgba(83,52,32,.08);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .field{margin-bottom:14px}
    .field.full{grid-column:1 / -1}
    label{
      display:block;
      font-size:13px;
      font-weight:850;
      color:#564941;
      margin-bottom:7px;
    }
    input[type="text"],input[type="tel"],select,textarea{
      width:100%;
      margin:0;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fffaf5;
      box-shadow:none;
      color:var(--text);
      padding:12px 14px;
      transition:var(--ease);
    }
    textarea{min-height:112px;resize:vertical}
    input:focus,select:focus,textarea:focus{
      border-color:rgba(143,63,38,.55);
      background:#fff;
      box-shadow:0 0 0 4px rgba(143,63,38,.10);
      outline:0;
    }
    .privacy{
      display:flex;
      gap:9px;
      align-items:flex-start;
      font-size:12px;
      color:var(--muted);
      margin:4px 0 16px;
    }
    .privacy input{margin-top:5px}

    .site-footer{
      background:#191310;
      color:#fff7ec;
      padding:62px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      display:flex;
      gap:14px;
      align-items:flex-start;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{box-shadow:none}
    .footer-brand strong{
      display:block;
      font-size:18px;
      line-height:1.35;
    }
    .footer-brand span{
      color:rgba(255,247,236,.55);
      font-size:13px;
    }
    .site-footer p{color:rgba(255,247,236,.66)}
    .footer-title{
      font-size:14px;
      font-weight:900;
      color:#ffd889;
      margin-bottom:14px;
    }
    .footer-links{
      list-style:none;
      padding:0;margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,247,236,.72);
      font-size:14px;
    }
    .footer-links a:hover{color:#ffd889}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:24px;
      color:rgba(255,247,236,.55);
      font-size:13px;
      flex-wrap:wrap;
    }

    @media (max-width:1024px){
      :root{--nav-h:70px}
      .nav-center,.search-mini{display:none}
      .menu-toggle{display:grid;place-items:center}
      .nav-actions .btn-secondary{display:none}
      .mobile-panel{
        position:fixed;
        top:var(--nav-h);
        left:0;right:0;
        background:rgba(255,250,243,.98);
        border-bottom:1px solid var(--line);
        box-shadow:0 20px 40px rgba(50,32,20,.12);
        padding:16px 20px;
        display:none;
      }
      .mobile-panel.active{display:block}
      .mobile-panel a{
        display:block;
        padding:14px 16px;
        border-radius:14px;
        font-weight:850;
      }
      .mobile-panel a.active{background:var(--surface-2);color:#fff}
      .hero{min-height:auto;padding:60px 0 56px}
      .hero-copy{padding:16px 0}
      .capability-grid,.faq-wrap,.cta-panel{grid-template-columns:1fr}
      .faq-note{position:relative;top:auto}
      .slide-row{grid-template-columns:1fr 1fr}
      .slide-row .visual-card:first-child{grid-column:1 / -1}
      .news-item{grid-template-columns:130px 1fr auto}
    }

    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .section{padding:62px 0}
      .section-title{display:block}
      .section-title p{margin-top:12px}
      .brand-name{max-width:180px}
      .hero-actions .btn{width:100%}
      .metric-wrap{border-radius:24px}
      .compare-board{grid-template-columns:1fr}
      .slide-row{grid-template-columns:1fr}
      .news-item{
        grid-template-columns:1fr;
        gap:12px;
      }
      .news-meta{
        flex-direction:row;
        align-items:center;
        justify-content:space-between;
      }
      .news-arrow{display:none}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width:520px){
      h1{font-size:38px}
      h2{font-size:28px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-note{display:none}
      .nav-actions .btn-primary{display:none}
      .hero{padding:42px 0}
      .hero-panel{padding:10px;border-radius:24px}
      .screen-card,.intro-card,.cap-card,.compare-col,.form-card{padding:22px;border-radius:22px}
      .metric-card{padding:18px}
      .metric-num{font-size:30px}
      .cta-panel{padding:14px;border-radius:26px}
      .cta-copy{padding:12px}
      .copyright{display:block}
    }

/* roulang page: article */
:root{
      --color-bg:#f6f2ea;
      --color-bg-soft:#fffaf1;
      --color-surface:#ffffff;
      --color-surface-deep:#171512;
      --color-primary:#7b2e1f;
      --color-primary-dark:#5b2117;
      --color-primary-soft:#fff0e8;
      --color-secondary:#c28b35;
      --color-secondary-soft:#fff5dd;
      --color-accent:#24423d;
      --color-accent-soft:#e7f1ed;
      --color-text:#211c18;
      --color-muted:#746b63;
      --color-light:#f9f6ef;
      --color-border:#e6d8c4;
      --shadow-card:0 18px 45px rgba(58,39,20,.09);
      --shadow-soft:0 10px 28px rgba(58,39,20,.07);
      --radius-sm:10px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-pill:999px;
      --container:1180px;
      --transition:all .22s ease;
      --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",Arial,sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font-cn);
      color:var(--color-text);
      background:
        radial-gradient(circle at top left, rgba(194,139,53,.15), transparent 34%),
        linear-gradient(180deg,#fbf7ef 0%, var(--color-bg) 46%, #f3eadc 100%);
      line-height:1.78;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:var(--transition);
    }
    a:hover,a:focus{color:var(--color-primary)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font-family:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(123,46,31,.18);color:var(--color-primary-dark)}

    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }

    .skip-link{
      position:absolute;
      left:-999px;
      top:12px;
      z-index:999;
      padding:10px 14px;
      border-radius:var(--radius-pill);
      background:var(--color-primary);
      color:#fff;
    }
    .skip-link:focus{left:16px;color:#fff}

    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      border-bottom:1px solid rgba(230,216,196,.76);
      background:rgba(255,250,241,.88);
      backdrop-filter:blur(18px);
      box-shadow:0 8px 28px rgba(55,34,18,.05);
    }
    .nav-shell{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:240px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:15px;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      box-shadow:0 12px 24px rgba(123,46,31,.22);
      flex:0 0 auto;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.2;
    }
    .brand-text strong{
      max-width:290px;
      font-size:15px;
      font-weight:900;
      letter-spacing:-.02em;
      color:var(--color-text);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text span{
      margin-top:4px;
      font-size:12px;
      color:var(--color-muted);
    }
    .nav-center{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:7px;
      border:1px solid rgba(230,216,196,.82);
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.62);
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:0 18px;
      border-radius:var(--radius-pill);
      font-size:14px;
      font-weight:800;
      color:var(--color-muted);
    }
    .nav-link:hover{
      background:var(--color-primary-soft);
      color:var(--color-primary);
    }
    .nav-link.active{
      color:#fff;
      background:var(--color-primary);
      box-shadow:0 10px 24px rgba(123,46,31,.18);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      min-width:300px;
    }
    .search-box{
      width:184px;
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 13px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-pill);
      background:#fff;
      color:var(--color-muted);
      transition:var(--transition);
    }
    .search-box:focus-within{
      border-color:rgba(123,46,31,.45);
      box-shadow:0 0 0 4px rgba(123,46,31,.1);
    }
    .search-box input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      box-shadow:none;
      margin:0;
      padding:0;
      height:auto;
      font-size:13px;
      color:var(--color-text);
    }
    .search-box input::placeholder{color:#9b9085}
    .nav-entry{
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 15px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.7);
      font-size:13px;
      font-weight:800;
      color:var(--color-accent);
    }
    .nav-entry:hover{
      border-color:rgba(36,66,61,.35);
      background:var(--color-accent-soft);
      color:var(--color-accent);
      transform:translateY(-1px);
    }
    .nav-cta{
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:0 18px;
      border-radius:var(--radius-pill);
      border:1px solid transparent;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));
      font-size:13px;
      font-weight:900;
      box-shadow:0 14px 28px rgba(123,46,31,.2);
    }
    .nav-cta:hover{
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 18px 34px rgba(123,46,31,.26);
    }
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--color-border);
      border-radius:14px;
      background:#fff;
      color:var(--color-primary);
      align-items:center;
      justify-content:center;
      box-shadow:var(--shadow-soft);
    }
    .mobile-panel{
      display:none;
      border-top:1px solid var(--color-border);
      padding:14px 0 18px;
    }
    .mobile-panel .nav-center,
    .mobile-panel .nav-actions{
      min-width:0;
      width:100%;
      justify-content:flex-start;
    }
    .mobile-panel .nav-center{
      margin-bottom:12px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 20px;
      border:1px solid transparent;
      border-radius:var(--radius-pill);
      font-size:14px;
      font-weight:900;
      line-height:1;
      transition:var(--transition);
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));
      color:#fff;
      box-shadow:0 16px 32px rgba(123,46,31,.2);
    }
    .btn-primary:hover,.btn-primary:focus{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 20px 38px rgba(123,46,31,.28);
    }
    .btn-secondary{
      background:#fff;
      color:var(--color-accent);
      border-color:var(--color-border);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      color:var(--color-primary);
      border-color:rgba(123,46,31,.35);
      background:var(--color-primary-soft);
      transform:translateY(-2px);
    }

    .article-hero{
      position:relative;
      padding:72px 0 48px;
      overflow:hidden;
      background:
        linear-gradient(120deg, rgba(23,21,18,.93), rgba(76,31,22,.88)),
        radial-gradient(circle at 84% 20%, rgba(194,139,53,.45), transparent 26%);
      color:#fff;
    }
    .article-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(180deg, #000, transparent 88%);
      opacity:.42;
      pointer-events:none;
    }
    .article-hero::after{
      content:"";
      position:absolute;
      right:-120px;
      top:-120px;
      width:420px;
      height:420px;
      border-radius:50%;
      background:rgba(194,139,53,.24);
      filter:blur(4px);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:1;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin:0 0 26px;
      padding:0;
      list-style:none;
      color:rgba(255,255,255,.74);
      font-size:14px;
    }
    .breadcrumb a{
      color:rgba(255,255,255,.82);
      font-weight:800;
    }
    .breadcrumb a:hover{color:#fff}
    .breadcrumb i{
      font-size:11px;
      opacity:.65;
    }
    .article-kicker{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 12px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.08);
      color:#ffe8bf;
      font-size:13px;
      font-weight:900;
      backdrop-filter:blur(12px);
    }
    .article-title{
      max-width:920px;
      margin:20px 0 18px;
      font-size:clamp(32px,5vw,62px);
      line-height:1.08;
      letter-spacing:-.055em;
      font-weight:950;
      color:#fff;
    }
    .article-summary{
      max-width:760px;
      margin:0;
      font-size:18px;
      line-height:1.9;
      color:rgba(255,255,255,.78);
    }
    .meta-row{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .meta-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 13px;
      border:1px solid rgba(255,255,255,.16);
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.1);
      color:rgba(255,255,255,.86);
      font-size:13px;
      font-weight:800;
    }
    .meta-chip i{color:#ffd88e}

    main{
      padding:54px 0 76px;
    }
    .content-layout{
      align-items:flex-start;
    }
    .article-panel{
      border:1px solid rgba(230,216,196,.9);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.9);
      box-shadow:var(--shadow-card);
      overflow:hidden;
    }
    .article-toolbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 22px;
      border-bottom:1px solid var(--color-border);
      background:linear-gradient(90deg,#fffaf1,#fff);
    }
    .toolbar-title{
      display:flex;
      align-items:center;
      gap:10px;
      font-size:14px;
      font-weight:900;
      color:var(--color-accent);
    }
    .toolbar-title span{
      width:28px;
      height:28px;
      border-radius:10px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      background:var(--color-accent);
    }
    .toolbar-actions{
      display:flex;
      align-items:center;
      gap:8px;
      color:var(--color-muted);
      font-size:13px;
      font-weight:800;
    }
    .article-body{
      padding:34px 42px 44px;
      font-size:17px;
      color:#332b25;
      word-break:break-word;
    }
    .article-body h1,
    .article-body h2,
    .article-body h3,
    .article-body h4{
      color:var(--color-text);
      line-height:1.28;
      letter-spacing:-.02em;
      font-weight:950;
    }
    .article-body h1{font-size:34px;margin:0 0 24px}
    .article-body h2{
      position:relative;
      font-size:28px;
      margin:44px 0 18px;
      padding-left:17px;
    }
    .article-body h2::before{
      content:"";
      position:absolute;
      left:0;
      top:.28em;
      width:5px;
      height:1.05em;
      border-radius:var(--radius-pill);
      background:linear-gradient(180deg,var(--color-primary),var(--color-secondary));
    }
    .article-body h3{font-size:22px;margin:34px 0 14px}
    .article-body h4{font-size:18px;margin:28px 0 12px}
    .article-body p{margin:0 0 20px}
    .article-body a{
      color:var(--color-primary);
      font-weight:900;
      border-bottom:1px solid rgba(123,46,31,.28);
    }
    .article-body a:hover{
      color:var(--color-primary-dark);
      border-bottom-color:var(--color-primary-dark);
    }
    .article-body ul,
    .article-body ol{
      margin:0 0 22px 0;
      padding-left:1.35em;
    }
    .article-body li{margin:8px 0}
    .article-body blockquote{
      margin:28px 0;
      padding:22px 24px;
      border-left:5px solid var(--color-secondary);
      border-radius:0 var(--radius-md) var(--radius-md) 0;
      background:var(--color-secondary-soft);
      color:#4a3824;
      font-weight:700;
    }
    .article-body img{
      margin:28px auto;
      border-radius:var(--radius-md);
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-soft);
    }
    .article-body figure{
      margin:30px 0;
    }
    .article-body figcaption{
      margin-top:10px;
      text-align:center;
      color:var(--color-muted);
      font-size:13px;
    }
    .article-body table{
      width:100%;
      margin:28px 0;
      border-collapse:separate;
      border-spacing:0;
      border:1px solid var(--color-border);
      border-radius:var(--radius-md);
      overflow:hidden;
      background:#fff;
    }
    .article-body th,
    .article-body td{
      padding:14px 16px;
      border-bottom:1px solid var(--color-border);
      vertical-align:top;
    }
    .article-body th{
      background:var(--color-bg-soft);
      color:var(--color-accent);
      font-weight:900;
    }
    .article-body tr:last-child td{border-bottom:0}
    .article-body hr{
      height:1px;
      border:0;
      margin:36px 0;
      background:linear-gradient(90deg,transparent,var(--color-border),transparent);
    }

    .empty-state{
      padding:48px 20px;
      text-align:center;
    }
    .empty-icon{
      width:74px;
      height:74px;
      margin:0 auto 18px;
      display:flex;
      align-items:center;
      justify-content:center;
      border-radius:24px;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      font-size:28px;
    }
    .empty-state h2{
      margin:0 0 10px;
      font-size:26px;
      font-weight:950;
      color:var(--color-text);
    }
    .empty-state p{
      margin:0 auto 22px;
      max-width:520px;
      color:var(--color-muted);
    }

    .sidebar{
      position:sticky;
      top:104px;
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .side-card{
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.82);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .side-card-header{
      padding:18px 20px;
      border-bottom:1px solid var(--color-border);
      background:linear-gradient(90deg,#fff,var(--color-bg-soft));
    }
    .side-card-header h2,
    .side-card-header h3{
      margin:0;
      font-size:17px;
      font-weight:950;
      color:var(--color-text);
    }
    .side-card-body{
      padding:20px;
    }
    .risk-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:13px;
    }
    .risk-list li{
      display:flex;
      gap:11px;
      align-items:flex-start;
      padding:13px;
      border:1px solid rgba(230,216,196,.78);
      border-radius:16px;
      background:#fff;
      transition:var(--transition);
    }
    .risk-list li:hover{
      border-color:rgba(123,46,31,.25);
      transform:translateY(-2px);
      box-shadow:var(--shadow-soft);
    }
    .risk-list i{
      width:30px;
      height:30px;
      border-radius:10px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--color-accent-soft);
      color:var(--color-accent);
      flex:0 0 auto;
      margin-top:2px;
    }
    .risk-list strong{
      display:block;
      margin-bottom:3px;
      font-size:14px;
      color:var(--color-text);
    }
    .risk-list span{
      display:block;
      color:var(--color-muted);
      font-size:13px;
      line-height:1.55;
    }
    .audit-box{
      padding:20px;
      color:#fff;
      background:
        linear-gradient(145deg,rgba(36,66,61,.98),rgba(23,21,18,.96)),
        radial-gradient(circle at 85% 20%,rgba(194,139,53,.34),transparent 34%);
    }
    .audit-box h3{
      margin:0 0 10px;
      font-size:20px;
      font-weight:950;
      color:#fff;
    }
    .audit-box p{
      margin:0 0 18px;
      color:rgba(255,255,255,.75);
      line-height:1.75;
      font-size:14px;
    }
    .audit-box .btn{
      width:100%;
      min-height:44px;
      background:#fff;
      color:var(--color-accent);
    }
    .audit-box .btn:hover{
      color:var(--color-primary);
      transform:translateY(-2px);
    }
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 11px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-pill);
      background:#fff;
      color:var(--color-muted);
      font-size:12px;
      font-weight:900;
    }
    .tag:hover{
      background:var(--color-primary-soft);
      color:var(--color-primary);
      border-color:rgba(123,46,31,.28);
    }

    .related-section{
      margin-top:28px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.8);
      box-shadow:var(--shadow-soft);
      padding:26px;
    }
    .section-heading{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .section-heading h2{
      margin:0;
      font-size:24px;
      font-weight:950;
      letter-spacing:-.03em;
      color:var(--color-text);
    }
    .section-heading p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
    }
    .related-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .related-card{
      padding:18px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-md);
      background:#fff;
      transition:var(--transition);
    }
    .related-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-soft);
      border-color:rgba(123,46,31,.28);
    }
    .related-card .badge{
      margin-bottom:12px;
    }
    .related-card h3{
      margin:0 0 9px;
      font-size:17px;
      font-weight:950;
      line-height:1.45;
      color:var(--color-text);
    }
    .related-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.65;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:28px;
      padding:0 10px;
      border-radius:var(--radius-pill);
      background:var(--color-secondary-soft);
      color:#7a5016;
      font-size:12px;
      font-weight:950;
      border:1px solid rgba(194,139,53,.22);
    }

    .article-cta{
      margin-top:30px;
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid rgba(123,46,31,.14);
      background:
        linear-gradient(135deg,#fff7ea,#ffffff 52%,#eef6f2);
      box-shadow:var(--shadow-card);
      padding:30px;
    }
    .article-cta::after{
      content:"";
      position:absolute;
      right:-60px;
      bottom:-80px;
      width:230px;
      height:230px;
      border-radius:50%;
      background:rgba(194,139,53,.18);
    }
    .cta-content{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .cta-content h2{
      margin:0 0 8px;
      font-size:26px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .cta-content p{
      margin:0;
      max-width:690px;
      color:var(--color-muted);
    }
    .cta-actions{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      flex:0 0 auto;
    }

    .faq-section{
      margin-top:30px;
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.82);
      box-shadow:var(--shadow-soft);
      padding:28px;
    }
    .accordion{
      margin:0;
      background:transparent;
    }
    .accordion-item{
      border:1px solid var(--color-border);
      border-radius:var(--radius-md);
      background:#fff;
      overflow:hidden;
      margin-bottom:12px;
    }
    .accordion-title{
      border:0;
      color:var(--color-text);
      font-size:15px;
      font-weight:950;
      padding:18px 48px 18px 18px;
      background:#fff;
    }
    .accordion-title:hover,
    .accordion-title:focus{
      background:var(--color-bg-soft);
      color:var(--color-primary);
    }
    .accordion-title::before{
      right:18px;
      color:var(--color-primary);
      font-size:18px;
    }
    .accordion-content{
      border:0;
      border-top:1px solid var(--color-border);
      color:var(--color-muted);
      line-height:1.78;
      padding:18px;
      background:#fffdf8;
    }

    .site-footer{
      padding:54px 0 24px;
      color:rgba(255,255,255,.78);
      background:
        linear-gradient(145deg,#171512,#23160f 62%,#2b1a12);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr .75fr 1fr;
      gap:36px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:13px;
      margin-bottom:16px;
    }
    .footer-brand .brand-mark{
      box-shadow:none;
    }
    .footer-brand strong{
      display:block;
      color:#fff;
      font-size:18px;
      font-weight:950;
      line-height:1.35;
    }
    .footer-brand span:not(.brand-mark){
      display:block;
      margin-top:4px;
      color:rgba(255,255,255,.6);
      font-size:13px;
    }
    .site-footer p{
      max-width:620px;
      margin:0;
      color:rgba(255,255,255,.68);
      line-height:1.85;
    }
    .footer-title{
      margin-bottom:14px;
      color:#fff;
      font-size:15px;
      font-weight:950;
    }
    .footer-links{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-links a,
    .footer-links span{
      color:rgba(255,255,255,.68);
      font-size:14px;
    }
    .footer-links a:hover{
      color:#ffd88e;
      padding-left:3px;
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(255,255,255,.52);
      font-size:13px;
    }

    :focus-visible{
      outline:3px solid rgba(194,139,53,.45);
      outline-offset:3px;
      border-radius:10px;
    }

    @media (max-width:1024px){
      .nav-actions{min-width:240px}
      .search-box{display:none}
      .article-body{padding:30px}
      .related-grid{grid-template-columns:1fr}
      .sidebar{position:static;margin-top:24px}
      .cta-content{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr 1fr}
    }

    @media (max-width:768px){
      .site-container{width:min(100% - 28px, var(--container))}
      .nav-shell{min-height:68px}
      .nav-shell > .nav-center,
      .nav-shell > .nav-actions{display:none}
      .mobile-toggle{display:inline-flex}
      .brand{min-width:0}
      .brand-text strong{max-width:210px}
      .mobile-panel.is-open{display:block}
      .mobile-panel .nav-center{
        display:flex;
        border-radius:18px;
        align-items:stretch;
      }
      .mobile-panel .nav-link{width:100%}
      .mobile-panel .nav-actions{
        display:grid;
        grid-template-columns:1fr;
        gap:10px;
      }
      .mobile-panel .search-box{
        display:flex;
        width:100%;
      }
      .nav-entry,.nav-cta{width:100%}
      .article-hero{padding:52px 0 38px}
      .article-summary{font-size:16px}
      .article-toolbar{
        align-items:flex-start;
        flex-direction:column;
      }
      .article-body{font-size:16px;padding:24px 20px 30px}
      .article-body h1{font-size:28px}
      .article-body h2{font-size:23px}
      .article-body table{
        display:block;
        overflow-x:auto;
      }
      .section-heading{
        align-items:flex-start;
        flex-direction:column;
      }
      .article-cta,.faq-section,.related-section{padding:22px}
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .brand-text strong{max-width:180px;font-size:14px}
      .brand-text span{display:none}
      .article-title{
        font-size:31px;
        letter-spacing:-.04em;
      }
      .meta-row{gap:8px}
      .meta-chip{width:100%;justify-content:flex-start}
      .article-body{padding:22px 16px 28px}
      .article-panel,
      .side-card,
      .related-section,
      .article-cta,
      .faq-section{
        border-radius:22px;
      }
      .cta-actions,.cta-actions .btn{width:100%}
      .copyright{flex-direction:column}
    }