/* roulang page: index */
:root{
      --primary:#1769ff;
      --primary-dark:#0d47c8;
      --primary-soft:#eaf2ff;
      --secondary:#16b7a8;
      --accent:#ffb020;
      --danger:#ef4444;
      --ink:#132033;
      --text:#34425a;
      --muted:#718096;
      --weak:#9aa7bb;
      --line:#dde6f3;
      --line-strong:#cbd8ea;
      --bg:#f6f9fe;
      --surface:#ffffff;
      --surface-soft:#fafdff;
      --nav-bg:rgba(255,255,255,.88);
      --shadow-sm:0 10px 28px rgba(26,67,135,.08);
      --shadow-md:0 18px 48px rgba(26,67,135,.13);
      --shadow-lg:0 26px 72px rgba(20,73,155,.18);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:28px;
      --radius-pill:999px;
      --container:1180px;
      --section:92px;
      --transition:all .22s 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(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(23,105,255,.10), transparent 34%),
        radial-gradient(circle at 92% 8%, rgba(22,183,168,.12), transparent 28%),
        linear-gradient(180deg,#f9fbff 0%,#f4f8ff 44%,#ffffff 100%);
      line-height:1.7;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--transition)}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(23,105,255,.18);color:var(--ink)}
    .container{max-width:var(--container);padding-left:22px;padding-right:22px}
    .section{padding:var(--section) 0}
    .section-tight{padding:68px 0}
    .section-head{
      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;
      padding:7px 12px;
      border-radius:var(--radius-pill);
      color:var(--primary-dark);
      background:var(--primary-soft);
      font-size:13px;
      font-weight:800;
      letter-spacing:.04em;
      margin-bottom:12px;
    }
    .section-title{
      margin:0;
      color:var(--ink);
      font-size:clamp(28px,3.2vw,44px);
      line-height:1.18;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .section-desc{
      max-width:620px;
      margin:14px 0 0;
      color:var(--muted);
      font-size:16px;
    }
    .section-action{flex:0 0 auto}
    .btn-rou{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:12px 20px;
      border-radius:var(--radius-pill);
      font-weight:850;
      letter-spacing:.01em;
      border:1px solid transparent;
      transition:var(--transition);
      box-shadow:none;
      white-space:nowrap;
    }
    .btn-primary-rou{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#4b8cff);
      box-shadow:0 16px 34px rgba(23,105,255,.26);
    }
    .btn-primary-rou:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 22px 44px rgba(23,105,255,.34);
    }
    .btn-light-rou{
      color:var(--primary-dark);
      background:#fff;
      border-color:var(--line);
      box-shadow:var(--shadow-sm);
    }
    .btn-light-rou:hover{
      color:var(--primary);
      transform:translateY(-2px);
      border-color:rgba(23,105,255,.28);
      box-shadow:var(--shadow-md);
    }
    .btn-ghost-rou{
      color:var(--ink);
      background:rgba(255,255,255,.62);
      border-color:rgba(203,216,234,.8);
    }
    .btn-ghost-rou:hover{
      color:var(--primary-dark);
      background:#fff;
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
    }
    .badge-rou{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:var(--radius-pill);
      background:#edf5ff;
      color:var(--primary-dark);
      font-size:12px;
      font-weight:800;
      border:1px solid rgba(23,105,255,.14);
    }
    .card-rou{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(221,230,243,.92);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
      transition:var(--transition);
    }
    .card-rou:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-md);
      border-color:rgba(23,105,255,.20);
    }
    .site-header{
      position:sticky;
      top:16px;
      z-index:50;
      padding:0 18px;
      margin-top:16px;
    }
    .pill-nav{
      max-width:var(--container);
      margin:0 auto;
      min-height:70px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:10px 12px 10px 18px;
      border-radius:var(--radius-pill);
      background:var(--nav-bg);
      border:1px solid rgba(203,216,234,.72);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 50px rgba(17,51,108,.10);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:0;
      font-weight:950;
      color:var(--ink);
      letter-spacing:-.03em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 28px rgba(23,105,255,.22);
    }
    .brand span:last-child{
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      font-size:16px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-link-rou{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 16px;
      border-radius:var(--radius-pill);
      color:#52617a;
      font-size:14px;
      font-weight:800;
    }
    .nav-link-rou:hover,
    .nav-link-rou.active{
      color:var(--primary-dark);
      background:var(--primary-soft);
    }
    .nav-search{
      display:flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:var(--radius-pill);
      background:#f3f7ff;
      border:1px solid transparent;
      min-width:220px;
    }
    .nav-search:focus-within{
      border-color:rgba(23,105,255,.32);
      background:#fff;
      box-shadow:0 0 0 4px rgba(23,105,255,.10);
    }
    .nav-search i{color:var(--weak)}
    .nav-search input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--ink);
      font-size:14px;
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:16px;
      background:var(--primary-soft);
      color:var(--primary-dark);
    }
    .hero{
      padding:64px 0 78px;
      position:relative;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:-100px 0 auto;
      height:420px;
      background:linear-gradient(90deg,rgba(23,105,255,.08),rgba(22,183,168,.07),transparent);
      pointer-events:none;
      z-index:-1;
    }
    .hero-panel{
      overflow:hidden;
      border-radius:34px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.96),rgba(255,255,255,.82)),
        radial-gradient(circle at 85% 0%,rgba(23,105,255,.18),transparent 40%);
      border:1px solid rgba(203,216,234,.92);
      box-shadow:var(--shadow-lg);
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      min-height:560px;
    }
    .hero-copy{
      padding:54px 54px 48px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .hero-kicker{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:22px;
    }
    h1{
      color:var(--ink);
      font-size:clamp(38px,5vw,68px);
      line-height:1.02;
      letter-spacing:-.065em;
      font-weight:950;
      margin:0;
    }
    .hero-lead{
      margin:22px 0 0;
      max-width:720px;
      font-size:18px;
      color:#506078;
    }
    .hero-cta{
      display:flex;
      flex-wrap:wrap;
      gap:13px;
      margin-top:30px;
    }
    .hero-stats{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin-top:34px;
    }
    .stat-mini{
      padding:17px 16px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 12px 26px rgba(18,66,142,.07);
    }
    .stat-mini strong{
      display:block;
      color:var(--ink);
      font-size:24px;
      line-height:1.1;
      font-weight:950;
    }
    .stat-mini span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }
    .hero-download{
      padding:32px;
      background:linear-gradient(180deg,#f4f8ff,#ffffff);
      border-left:1px solid var(--line);
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .whitepaper{
      position:relative;
      padding:26px;
      border-radius:28px;
      background:#fff;
      box-shadow:var(--shadow-md);
      border:1px solid rgba(203,216,234,.9);
      overflow:hidden;
    }
    .whitepaper:before{
      content:"";
      position:absolute;
      right:-72px;
      top:-72px;
      width:190px;
      height:190px;
      border-radius:50%;
      background:rgba(23,105,255,.12);
    }
    .paper-cover{
      position:relative;
      min-height:210px;
      border-radius:24px;
      padding:24px;
      background:
        linear-gradient(135deg,rgba(23,105,255,.96),rgba(22,183,168,.88)),
        linear-gradient(45deg,transparent,#fff);
      color:#fff;
      overflow:hidden;
    }
    .paper-cover:after{
      content:"";
      position:absolute;
      width:220px;
      height:220px;
      right:-80px;
      bottom:-90px;
      border-radius:52px;
      background:rgba(255,255,255,.16);
      transform:rotate(18deg);
    }
    .paper-cover .paper-label{
      display:inline-flex;
      padding:6px 10px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.18);
      font-weight:850;
      font-size:12px;
    }
    .paper-cover h2{
      position:relative;
      z-index:1;
      margin:48px 0 8px;
      font-size:28px;
      line-height:1.15;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .paper-cover p{
      position:relative;
      z-index:1;
      margin:0;
      color:rgba(255,255,255,.84);
      font-size:14px;
    }
    .toc-list{
      margin:20px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .toc-list li{
      display:flex;
      align-items:center;
      gap:10px;
      padding:11px 12px;
      border-radius:14px;
      background:#f7faff;
      color:#40516a;
      font-size:14px;
      font-weight:750;
    }
    .toc-list i{color:var(--primary)}
    .lead-form{
      margin-top:18px;
      display:grid;
      gap:10px;
    }
    .form-control-rou{
      width:100%;
      min-height:48px;
      border:1px solid var(--line);
      border-radius:15px;
      background:#fbfdff;
      padding:12px 14px;
      outline:0;
      transition:var(--transition);
      color:var(--ink);
    }
    .form-control-rou:focus{
      background:#fff;
      border-color:rgba(23,105,255,.45);
      box-shadow:0 0 0 4px rgba(23,105,255,.11);
    }
    .form-note{
      margin:0;
      color:var(--weak);
      font-size:12px;
      line-height:1.55;
    }
    .metric-board{
      display:grid;
      grid-template-columns:1.3fr .7fr;
      gap:22px;
    }
    .metric-main{
      padding:28px;
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,#ffffff,#f8fbff);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .metric-row{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:22px;
    }
    .metric-cell{
      padding:18px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
    }
    .metric-cell b{
      display:block;
      color:var(--ink);
      font-size:28px;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .metric-cell span{
      color:var(--muted);
      font-size:13px;
      font-weight:750;
    }
    .rank-card{
      padding:24px;
      border-radius:var(--radius-lg);
      background:#0f1f38;
      color:#fff;
      box-shadow:var(--shadow-md);
      overflow:hidden;
      position:relative;
    }
    .rank-card:before{
      content:"";
      position:absolute;
      inset:auto -40px -70px auto;
      width:160px;
      height:160px;
      border-radius:50%;
      background:rgba(23,105,255,.28);
    }
    .rank-list{
      position:relative;
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .rank-list li{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px;
      border-radius:15px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
    }
    .rank-name{display:flex;align-items:center;gap:10px;font-weight:850}
    .rank-index{
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      border-radius:10px;
      background:rgba(255,255,255,.12);
      color:#cfe1ff;
      font-size:12px;
    }
    .commission-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:stretch;
    }
    .commission-feature{
      padding:30px;
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,#1769ff,#2fc9ba);
      color:#fff;
      box-shadow:var(--shadow-lg);
    }
    .commission-feature h3{
      margin:14px 0 10px;
      font-size:30px;
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .commission-feature p{margin:0;color:rgba(255,255,255,.86)}
    .progress-wrap{
      margin-top:24px;
      padding:18px;
      border-radius:20px;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.18);
    }
    .progress-label{
      display:flex;
      justify-content:space-between;
      gap:16px;
      margin-bottom:10px;
      font-size:13px;
      font-weight:850;
    }
    .progress-rou{
      height:12px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.24);
      overflow:hidden;
    }
    .progress-rou span{
      display:block;
      height:100%;
      width:72%;
      border-radius:inherit;
      background:linear-gradient(90deg,#fff,#ffdc7b);
    }
    .commission-cards{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .commission-card{
      padding:24px;
      min-height:188px;
    }
    .icon-box{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:16px;
      color:var(--primary);
      background:var(--primary-soft);
      margin-bottom:18px;
    }
    .commission-card h3,
    .material-card h3,
    .compare-card h3,
    .faq-box h3,
    .join-card h3{
      margin:0 0 10px;
      color:var(--ink);
      font-size:20px;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .commission-card p,
    .material-card p,
    .compare-card p,
    .join-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .materials-layout{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:20px;
    }
    .material-card{
      padding:24px;
      position:relative;
      overflow:hidden;
    }
    .material-card.large{
      grid-column:span 2;
      display:grid;
      grid-template-columns:1fr .82fr;
      gap:22px;
      align-items:center;
      background:linear-gradient(135deg,#ffffff,#eef6ff);
    }
    .asset-stack{
      display:grid;
      gap:12px;
    }
    .asset-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:13px 14px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 10px 22px rgba(23,105,255,.06);
    }
    .asset-item span{font-weight:850;color:var(--ink);font-size:14px}
    .asset-item small{color:var(--weak);font-weight:750}
    .track-scroll{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:4px 2px 18px;
      scroll-snap-type:x mandatory;
    }
    .track-scroll::-webkit-scrollbar{height:8px}
    .track-scroll::-webkit-scrollbar-thumb{
      background:#c9d8ef;
      border-radius:var(--radius-pill);
    }
    .poster-card{
      min-width:214px;
      height:280px;
      scroll-snap-align:start;
      border-radius:24px;
      overflow:hidden;
      position:relative;
      background:linear-gradient(145deg,#dbe9ff,#ffffff);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      transition:var(--transition);
    }
    .poster-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-md);
    }
    .poster-art{
      height:100%;
      padding:18px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 20% 20%,rgba(23,105,255,.22),transparent 30%),
        radial-gradient(circle at 85% 25%,rgba(22,183,168,.22),transparent 30%),
        linear-gradient(160deg,#ffffff,#edf5ff);
    }
    .poster-art strong{
      color:var(--ink);
      font-size:20px;
      line-height:1.18;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .poster-art span{
      color:var(--muted);
      font-size:13px;
      font-weight:750;
    }
    .poster-hover{
      position:absolute;
      inset:auto 12px 12px;
      padding:12px;
      border-radius:17px;
      background:rgba(15,31,56,.88);
      color:#fff;
      transform:translateY(120%);
      transition:var(--transition);
      backdrop-filter:blur(10px);
    }
    .poster-card:hover .poster-hover{transform:translateY(0)}
    .poster-hover a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      color:#fff;
      font-size:13px;
      font-weight:850;
    }
    .compare-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
    }
    .compare-card{
      padding:26px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .compare-card.highlight{
      background:#10213c;
      color:#fff;
      border-color:#10213c;
    }
    .compare-card.highlight h3{color:#fff}
    .compare-card.highlight p,
    .compare-card.highlight .check-list li{color:rgba(255,255,255,.78)}
    .check-list{
      list-style:none;
      padding:0;
      margin:20px 0 0;
      display:grid;
      gap:12px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      color:#53627a;
      font-size:14px;
      font-weight:700;
    }
    .check-list i{
      color:var(--secondary);
      margin-top:4px;
    }
    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:24px;
      align-items:start;
    }
    .news-list{
      padding:10px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .news-item{
      display:grid;
      grid-template-columns:118px 1fr auto;
      gap:18px;
      align-items:center;
      padding:18px;
      border-radius:20px;
      transition:var(--transition);
    }
    .news-item + .news-item{border-top:1px solid #eef3fb}
    .news-item:hover{
      background:#f6faff;
      transform:translateX(3px);
    }
    .news-date{
      padding:12px;
      border-radius:16px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      text-align:center;
      font-weight:900;
      font-size:13px;
    }
    .news-date b{display:block;font-size:22px;line-height:1}
    .news-item h3{
      margin:0 0 6px;
      color:var(--ink);
      font-size:18px;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .news-item p{margin:0;color:var(--muted);font-size:14px}
    .news-arrow{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:#f2f7ff;
      color:var(--primary);
    }
    .recommend{
      padding:24px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,#fff,#f5f9ff);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      position:sticky;
      top:106px;
    }
    .recommend h3{
      margin:0 0 14px;
      color:var(--ink);
      font-size:22px;
      font-weight:950;
    }
    .recommend-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .recommend-list a{
      display:flex;
      gap:12px;
      padding:12px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--line);
    }
    .recommend-list a:hover{
      border-color:rgba(23,105,255,.24);
      transform:translateY(-2px);
      box-shadow:0 12px 26px rgba(23,105,255,.08);
    }
    .dot{
      width:10px;
      height:10px;
      margin-top:8px;
      flex:0 0 10px;
      border-radius:50%;
      background:var(--secondary);
      box-shadow:0 0 0 5px rgba(22,183,168,.12);
    }
    .recommend-list strong{display:block;color:var(--ink);font-size:14px}
    .recommend-list span{display:block;margin-top:4px;color:var(--muted);font-size:12px}
    .invite-panel{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:24px;
      align-items:stretch;
    }
    .invite-card{
      padding:30px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .reward-steps{
      display:grid;
      gap:14px;
      margin-top:22px;
    }
    .reward-step{
      display:grid;
      grid-template-columns:46px 1fr;
      gap:14px;
      align-items:start;
      padding:14px;
      border-radius:18px;
      background:#f7fbff;
      border:1px solid #edf3fb;
    }
    .reward-step b{
      width:46px;
      height:46px;
      display:grid;
      place-items:center;
      border-radius:16px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#6aa1ff);
    }
    .reward-step strong{display:block;color:var(--ink);font-weight:900}
    .reward-step span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
    .join-form{
      padding:30px;
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,#10213c,#173d78);
      color:#fff;
      box-shadow:var(--shadow-lg);
    }
    .join-form h2{
      margin:0;
      font-size:32px;
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .join-form p{margin:12px 0 0;color:rgba(255,255,255,.76)}
    .join-form .form-control-rou{
      background:rgba(255,255,255,.10);
      border-color:rgba(255,255,255,.18);
      color:#fff;
    }
    .join-form .form-control-rou::placeholder{color:rgba(255,255,255,.54)}
    .join-form .form-control-rou:focus{
      background:rgba(255,255,255,.14);
      border-color:rgba(255,255,255,.48);
      box-shadow:0 0 0 4px rgba(255,255,255,.11);
    }
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:18px;
    }
    .faq-box{
      padding:24px;
    }
    .faq-box p{margin:0;color:var(--muted);font-size:14px}
    .cta-strip{
      padding:34px;
      border-radius:32px;
      background:
        radial-gradient(circle at 12% 20%,rgba(255,255,255,.20),transparent 24%),
        linear-gradient(135deg,var(--primary),#17b8aa);
      color:#fff;
      box-shadow:var(--shadow-lg);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .cta-strip h2{
      margin:0;
      font-size:32px;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .cta-strip p{margin:8px 0 0;color:rgba(255,255,255,.78)}
    .site-footer{
      padding:58px 0 34px;
      background:#0d1b31;
      color:#d6e1f3;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:32px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.10);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:950;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{box-shadow:none}
    .footer-text{max-width:520px;color:#9fb0c9;margin:0}
    .footer-title{
      color:#fff;
      font-size:15px;
      font-weight:900;
      margin:0 0 12px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:8px;
    }
    .footer-links a{color:#9fb0c9;font-size:14px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding-top:22px;
      color:#8fa0bb;
      font-size:13px;
    }
    .age-note{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 10px;
      border-radius:var(--radius-pill);
      background:rgba(255,255,255,.08);
      color:#dbe7fb;
    }
    .focusable:focus-visible,
    a:focus-visible,
    button:focus-visible{
      outline:3px solid rgba(23,105,255,.28);
      outline-offset:3px;
    }
    @media (max-width:1024px){
      :root{--section:76px}
      .nav-search{display:none}
      .hero-grid,.metric-board,.commission-grid,.invite-panel{grid-template-columns:1fr}
      .hero-download{border-left:0;border-top:1px solid var(--line)}
      .metric-row{grid-template-columns:repeat(2,1fr)}
      .materials-layout{grid-template-columns:1fr 1fr}
      .material-card.large{grid-column:span 2}
      .news-layout{grid-template-columns:1fr}
      .recommend{position:relative;top:auto}
    }
    @media (max-width:768px){
      .site-header{top:10px;margin-top:10px;padding:0 10px}
      .pill-nav{border-radius:24px;align-items:flex-start;flex-wrap:wrap}
      .mobile-toggle{display:grid}
      .nav-links{
        display:none;
        width:100%;
        order:3;
        padding:8px 0 2px;
        border-top:1px solid var(--line);
      }
      .nav-links.show{display:grid;grid-template-columns:1fr}
      .nav-link-rou{width:100%;justify-content:center}
      .nav-actions .btn-rou{display:none}
      .hero{padding:36px 0 58px}
      .hero-copy{padding:34px 24px}
      .hero-download{padding:22px}
      .hero-stats,.commission-cards,.compare-wrap,.faq-grid,.footer-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .section-action{margin-top:18px}
      .materials-layout{grid-template-columns:1fr}
      .material-card.large{grid-column:auto;grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr;gap:10px}
      .news-arrow{display:none}
      .cta-strip{display:block}
      .cta-strip .btn-rou{margin-top:18px}
      .footer-bottom{display:block}
      .footer-bottom .age-note{margin-top:12px}
    }
    @media (max-width:520px){
      .container{padding-left:16px;padding-right:16px}
      .brand span:last-child{max-width:210px}
      .hero-panel{border-radius:24px}
      h1{font-size:36px}
      .hero-lead{font-size:16px}
      .hero-cta .btn-rou{width:100%}
      .metric-row{grid-template-columns:1fr}
      .whitepaper{padding:18px}
      .paper-cover{min-height:190px}
      .section{padding:62px 0}
      .poster-card{min-width:190px;height:254px}
      .cta-strip{padding:24px;border-radius:24px}
    }

/* 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}