/* roulang page: index */
:root{
      --brand:#7c3aed;
      --brand-2:#ec4899;
      --brand-3:#06b6d4;
      --ink:#111827;
      --muted:#667085;
      --soft:#f8fafc;
      --surface:#ffffff;
      --line:#e5e7eb;
      --dark:#11131f;
      --warning:#f59e0b;
      --success:#10b981;
      --danger:#ef4444;
      --radius-xs:10px;
      --radius-sm:14px;
      --radius-md:20px;
      --radius-lg:28px;
      --shadow-sm:0 10px 24px rgba(17,24,39,.08);
      --shadow-md:0 18px 45px rgba(17,24,39,.12);
      --shadow-lg:0 26px 70px rgba(76,29,149,.22);
      --container:1160px;
      --nav-height:74px;
      --bottom-tab:74px;
      --ease:all .25s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 10% 0%,rgba(124,58,237,.12),transparent 34%),
        radial-gradient(circle at 88% 14%,rgba(236,72,153,.12),transparent 28%),
        linear-gradient(180deg,#fff 0%,#fbfbff 42%,#f7f7fb 100%);
      line-height:1.75;
      overflow-x:hidden;
      padding-bottom:0;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--brand)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(124,58,237,.18);color:#3b0764}
    .container-rou{
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto;
    }
    .section{
      padding:82px 0;
      position:relative;
    }
    .section-tight{padding:58px 0}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(124,58,237,.18);
      border-radius:999px;
      background:rgba(124,58,237,.07);
      color:#5b21b6;
      font-weight:700;
      font-size:14px;
      letter-spacing:.02em;
      margin-bottom:14px;
    }
    .section-title{
      font-size:clamp(28px,4vw,44px);
      line-height:1.18;
      letter-spacing:-.03em;
      margin:0 0 14px;
      font-weight:850;
      color:#101828;
    }
    .section-desc{
      max-width:760px;
      color:var(--muted);
      font-size:17px;
      margin:0;
    }
    .section-head.split{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:end;
      margin-bottom:30px;
    }
    .btn-rou{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      border-radius:999px;
      padding:13px 20px;
      font-weight:800;
      line-height:1;
      min-height:46px;
      transition:var(--ease);
      cursor:pointer;
      white-space:nowrap;
    }
    .btn-rou:focus-visible,
    .nav-link-rou:focus-visible,
    .form-control:focus,
    .form-select:focus{
      outline:4px solid rgba(124,58,237,.18);
      box-shadow:none;
      border-color:rgba(124,58,237,.55);
    }
    .btn-primary-rou{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 14px 28px rgba(124,58,237,.26);
    }
    .btn-primary-rou:hover{transform:translateY(-2px);color:#fff;box-shadow:0 18px 38px rgba(124,58,237,.34)}
    .btn-ghost-rou{
      color:#31135f;
      background:#fff;
      border:1px solid rgba(124,58,237,.16);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost-rou:hover{transform:translateY(-2px);background:#faf7ff}
    .btn-dark-rou{
      background:#111827;
      color:#fff;
      box-shadow:0 14px 28px rgba(17,24,39,.18);
    }
    .btn-dark-rou:hover{background:#0b1020;color:#fff;transform:translateY(-2px)}
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 11px;
      border-radius:999px;
      background:#fff;
      color:#4c1d95;
      border:1px solid rgba(124,58,237,.16);
      font-weight:750;
      font-size:13px;
      box-shadow:0 8px 20px rgba(17,24,39,.05);
    }
    .card-rou{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(229,231,235,.9);
      border-radius:var(--radius-md);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      backdrop-filter:blur(14px);
    }
    .card-rou:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-md);
      border-color:rgba(124,58,237,.22);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1020;
      height:var(--nav-height);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(229,231,235,.8);
      backdrop-filter:saturate(180%) blur(18px);
    }
    .nav-wrap{
      height:var(--nav-height);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand-logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:900;
      color:#17122b;
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.35),rgba(255,255,255,0)),
        linear-gradient(135deg,var(--brand),var(--brand-2));
      display:grid;
      place-items:center;
      color:#fff;
      box-shadow:0 14px 26px rgba(124,58,237,.28);
      flex:0 0 auto;
    }
    .brand-text{
      font-size:18px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      max-width:420px;
    }
    .nav-main{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .nav-link-rou{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:10px 14px;
      border-radius:999px;
      color:#374151;
      font-weight:750;
      font-size:15px;
    }
    .nav-link-rou:hover{
      color:#5b21b6;
      background:rgba(124,58,237,.08);
    }
    .nav-link-rou.active{
      color:#fff;
      background:#111827;
      box-shadow:0 10px 24px rgba(17,24,39,.14);
    }
    .nav-cta{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .quick-search{
      width:230px;
      position:relative;
    }
    .quick-search i{
      position:absolute;
      left:13px;
      top:50%;
      transform:translateY(-50%);
      color:#98a2b3;
      font-size:14px;
    }
    .quick-search input{
      width:100%;
      border:1px solid var(--line);
      border-radius:999px;
      min-height:42px;
      padding:9px 14px 9px 36px;
      background:#fff;
      color:#111827;
      transition:var(--ease);
    }
    .quick-search input:focus{
      outline:4px solid rgba(124,58,237,.12);
      border-color:rgba(124,58,237,.5);
    }

    .mobile-bottom-tab{
      display:none;
      position:fixed;
      left:12px;
      right:12px;
      bottom:12px;
      z-index:1030;
      height:62px;
      border-radius:24px;
      background:rgba(17,24,39,.92);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 20px 50px rgba(0,0,0,.24);
      backdrop-filter:blur(16px);
      padding:8px;
    }
    .mobile-bottom-tab a{
      flex:1;
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:3px;
      border-radius:18px;
      color:rgba(255,255,255,.72);
      font-size:12px;
      font-weight:700;
    }
    .mobile-bottom-tab a i{font-size:17px}
    .mobile-bottom-tab a.active,
    .mobile-bottom-tab a:hover{
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      color:#fff;
    }

    .hero{
      padding:64px 0 40px;
    }
    .hero-apply{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      padding:38px;
      color:#fff;
      background:
        linear-gradient(90deg,rgba(17,24,39,.92),rgba(49,18,96,.82)),
        radial-gradient(circle at 82% 18%,rgba(236,72,153,.58),transparent 32%),
        radial-gradient(circle at 18% 80%,rgba(6,182,212,.32),transparent 30%);
      box-shadow:var(--shadow-lg);
    }
    .hero-apply:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(90deg,rgba(0,0,0,.75),transparent 84%);
      pointer-events:none;
    }
    .hero-layout{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(320px,.72fr);
      gap:28px;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      min-height:420px;
      padding:8px 0;
    }
    .hero-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:22px;
    }
    .hero-badges .badge-soft{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.18);
      box-shadow:none;
    }
    .hero h1{
      font-size:clamp(34px,5.8vw,64px);
      line-height:1.06;
      letter-spacing:-.055em;
      margin:0 0 20px;
      font-weight:920;
      max-width:880px;
    }
    .hero-sub{
      font-size:18px;
      color:rgba(255,255,255,.78);
      max-width:820px;
      margin:0 0 28px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:22px;
    }
    .hero .btn-ghost-rou{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.2);
      box-shadow:none;
    }
    .hero-metrics{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:4px;
    }
    .metric-pill{
      display:flex;
      flex-direction:column;
      gap:2px;
      min-width:150px;
      padding:13px 15px;
      border-radius:18px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.15);
    }
    .metric-pill strong{font-size:22px;line-height:1.1}
    .metric-pill span{font-size:13px;color:rgba(255,255,255,.68)}
    .apply-panel{
      border-radius:28px;
      background:rgba(255,255,255,.95);
      color:#111827;
      padding:24px;
      box-shadow:0 28px 80px rgba(0,0,0,.22);
      align-self:stretch;
    }
    .apply-panel-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-bottom:18px;
    }
    .apply-panel h2{
      font-size:22px;
      line-height:1.25;
      margin:0;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .age-chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:48px;
      height:48px;
      border-radius:16px;
      background:rgba(239,68,68,.1);
      color:#b91c1c;
      font-weight:900;
      border:1px solid rgba(239,68,68,.2);
    }
    .apply-note{
      color:var(--muted);
      font-size:14px;
      margin-bottom:18px;
    }
    .form-label{
      font-weight:800;
      color:#344054;
      font-size:14px;
      margin-bottom:7px;
    }
    .form-control,.form-select{
      border-radius:16px;
      border:1px solid #e4e7ec;
      min-height:48px;
      padding:11px 14px;
      background:#fbfcff;
    }
    .form-check-input:checked{
      background-color:var(--brand);
      border-color:var(--brand);
    }
    .form-check-label{
      color:#475467;
      font-size:14px;
    }
    .qualification{
      display:grid;
      gap:9px;
      margin:18px 0;
    }
    .qualification li{
      list-style:none;
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#344054;
      font-size:14px;
    }
    .qualification i{color:var(--success);margin-top:5px}

    .news-shell{
      display:grid;
      grid-template-columns:1fr 360px;
      gap:24px;
      align-items:start;
    }
    .news-list{
      display:grid;
      gap:14px;
    }
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 22px rgba(17,24,39,.04);
      transition:var(--ease);
    }
    .news-item:hover{
      transform:translateX(4px);
      border-color:rgba(124,58,237,.24);
      box-shadow:var(--shadow-sm);
    }
    .news-date{
      width:70px;
      height:70px;
      border-radius:18px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      align-items:center;
      background:linear-gradient(135deg,rgba(124,58,237,.1),rgba(236,72,153,.1));
      color:#5b21b6;
      font-weight:850;
      flex:0 0 auto;
    }
    .news-date small{font-size:12px;color:#7c3aed}
    .news-item h3{
      font-size:18px;
      margin:0 0 5px;
      font-weight:850;
      letter-spacing:-.01em;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }
    .news-arrow{
      width:38px;
      height:38px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:#f4f3ff;
      color:#5b21b6;
    }
    .recommend-panel{
      padding:24px;
      position:sticky;
      top:calc(var(--nav-height) + 18px);
    }
    .recommend-panel h3{
      font-size:21px;
      margin:0 0 12px;
      font-weight:900;
    }
    .recommend-panel p{color:var(--muted);margin:0 0 18px}
    .mini-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
    }
    .mini-list li{
      list-style:none;
      padding:13px 14px;
      border-radius:16px;
      background:#f8fafc;
      border:1px solid #eef2f7;
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#475467;
      font-weight:650;
    }
    .mini-list i{color:var(--brand);margin-top:5px}

    .selling-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:28px;
    }
    .selling-card{
      padding:26px;
      min-height:230px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .selling-card:after{
      content:"";
      position:absolute;
      width:140px;
      height:140px;
      border-radius:50%;
      right:-54px;
      top:-54px;
      background:rgba(124,58,237,.08);
      transition:var(--ease);
    }
    .selling-card:hover:after{transform:scale(1.16)}
    .icon-tile{
      width:52px;
      height:52px;
      border-radius:18px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      box-shadow:0 12px 24px rgba(124,58,237,.22);
      margin-bottom:22px;
      position:relative;
      z-index:1;
    }
    .selling-card h3{
      font-size:22px;
      margin:0 0 10px;
      font-weight:900;
    }
    .selling-card p{
      color:var(--muted);
      margin:0;
      font-size:15px;
    }

    .service-band{
      border-radius:32px;
      background:#111827;
      color:#fff;
      overflow:hidden;
      box-shadow:var(--shadow-md);
    }
    .service-band-inner{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:0;
    }
    .service-copy{
      padding:38px;
      background:
        radial-gradient(circle at 20% 10%,rgba(124,58,237,.45),transparent 34%),
        linear-gradient(180deg,rgba(255,255,255,.05),transparent);
    }
    .service-copy .section-title{color:#fff}
    .service-copy .section-desc{color:rgba(255,255,255,.72)}
    .service-list{
      padding:28px;
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      background:rgba(255,255,255,.04);
    }
    .service-item{
      padding:20px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
      transition:var(--ease);
    }
    .service-item:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
    .service-item i{color:#a78bfa;font-size:20px;margin-bottom:12px}
    .service-item h3{font-size:18px;margin:0 0 8px;font-weight:850}
    .service-item p{margin:0;color:rgba(255,255,255,.68);font-size:14px}

    .app-stage{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
      align-items:center;
    }
    .app-card{
      padding:28px;
      border-radius:30px;
      background:
        linear-gradient(135deg,rgba(124,58,237,.12),rgba(236,72,153,.08)),
        #fff;
      border:1px solid rgba(124,58,237,.16);
      box-shadow:var(--shadow-sm);
    }
    .device-board{
      min-height:420px;
      border-radius:34px;
      background:
        linear-gradient(135deg,#17122b,#39245d 55%,#6d255f);
      position:relative;
      overflow:hidden;
      box-shadow:var(--shadow-lg);
      padding:30px;
      color:#fff;
    }
    .device-board:before{
      content:"";
      position:absolute;
      inset:auto -70px -90px auto;
      width:260px;
      height:260px;
      border-radius:50%;
      background:rgba(236,72,153,.36);
      filter:blur(4px);
    }
    .stage-card{
      position:relative;
      z-index:1;
      border-radius:24px;
      padding:22px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(10px);
      margin-bottom:14px;
    }
    .stage-card strong{display:block;font-size:20px;margin-bottom:6px}
    .stage-card span{color:rgba(255,255,255,.72);font-size:14px}
    .progress-rou{
      height:12px;
      border-radius:999px;
      background:rgba(255,255,255,.14);
      overflow:hidden;
      margin:16px 0 6px;
    }
    .progress-rou em{
      display:block;
      width:72%;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg,var(--brand-3),var(--brand-2));
      box-shadow:0 0 22px rgba(6,182,212,.55);
    }
    .download-list{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .download-list a{
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding:16px;
      border-radius:18px;
      border:1px solid #eef2f7;
      background:#fff;
      font-weight:800;
      box-shadow:0 8px 18px rgba(17,24,39,.04);
    }
    .download-list a:hover{transform:translateX(4px);border-color:rgba(124,58,237,.24)}

    .proof-wrap{
      display:grid;
      grid-template-columns:330px 1fr;
      gap:22px;
      align-items:stretch;
    }
    .rating-card{
      padding:28px;
      background:linear-gradient(135deg,#fff,#f7f2ff);
    }
    .rating-score{
      font-size:58px;
      font-weight:950;
      letter-spacing:-.06em;
      line-height:1;
      margin:10px 0 8px;
      color:#22123f;
    }
    .stars{color:#f59e0b;letter-spacing:2px}
    .rating-card p{color:var(--muted);margin:14px 0 20px}
    .review-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .review-card{
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 8px 20px rgba(17,24,39,.04);
    }
    .review-card p{margin:0 0 16px;color:#475467}
    .reviewer{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:850;
    }
    .avatar{
      width:38px;
      height:38px;
      border-radius:50%;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
    }

    .offer-strip{
      margin-top:28px;
      padding:24px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:14px;
    }
    .offer-card{
      padding:20px;
      border-radius:22px;
      border:1px solid #edf0f5;
      background:#fbfcff;
      position:relative;
      overflow:hidden;
    }
    .offer-card.featured{
      background:linear-gradient(135deg,rgba(124,58,237,.12),rgba(236,72,153,.1));
      border-color:rgba(124,58,237,.2);
    }
    .offer-card h3{font-size:20px;margin:0 0 8px;font-weight:900}
    .offer-card p{margin:0;color:var(--muted);font-size:14px}
    .offer-card .limit{
      display:inline-flex;
      margin-top:16px;
      padding:7px 10px;
      border-radius:999px;
      background:#111827;
      color:#fff;
      font-size:12px;
      font-weight:800;
    }

    .faq-section{
      background:
        linear-gradient(180deg,rgba(124,58,237,.05),rgba(255,255,255,0));
    }
    .accordion{
      display:grid;
      gap:14px;
    }
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:22px!important;
      overflow:hidden;
      background:#fff;
      box-shadow:0 8px 20px rgba(17,24,39,.04);
    }
    .accordion-button{
      padding:20px 22px;
      font-weight:900;
      color:#111827;
      background:#fff;
      box-shadow:none!important;
      line-height:1.45;
    }
    .accordion-button:not(.collapsed){
      color:#4c1d95;
      background:#faf7ff;
    }
    .accordion-button:focus{box-shadow:none;border-color:transparent}
    .accordion-body{
      padding:0 22px 22px;
      color:#566173;
      font-size:15px;
    }

    .about-panel{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
      align-items:stretch;
    }
    .about-text{
      padding:30px;
    }
    .about-text p{color:var(--muted);margin:0 0 16px}
    .commit-list{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .commit-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:#f8fafc;
      border:1px solid #eef2f7;
    }
    .commit-item i{color:var(--success);margin-top:5px}
    .timeline{
      padding:30px;
      background:#111827;
      color:#fff;
      border-radius:var(--radius-md);
      overflow:hidden;
      position:relative;
    }
    .timeline:after{
      content:"";
      position:absolute;
      width:220px;
      height:220px;
      border-radius:50%;
      background:rgba(124,58,237,.35);
      right:-90px;
      top:-90px;
    }
    .timeline-step{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:42px 1fr;
      gap:14px;
      padding:0 0 22px;
    }
    .timeline-step:not(:last-child):before{
      content:"";
      position:absolute;
      left:20px;
      top:44px;
      bottom:2px;
      width:1px;
      background:rgba(255,255,255,.18);
    }
    .timeline-index{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.12);
      color:#fff;
      font-weight:900;
      border:1px solid rgba(255,255,255,.14);
    }
    .timeline-step h3{font-size:18px;margin:0 0 5px;font-weight:900}
    .timeline-step p{margin:0;color:rgba(255,255,255,.68);font-size:14px}

    .final-cta{
      padding:54px 0 76px;
    }
    .cta-box{
      border-radius:34px;
      padding:34px;
      color:#fff;
      background:
        radial-gradient(circle at 80% 20%,rgba(236,72,153,.42),transparent 34%),
        linear-gradient(135deg,#21153b,#5b21b6 58%,#be185d);
      display:grid;
      grid-template-columns:1fr auto;
      gap:22px;
      align-items:center;
      box-shadow:var(--shadow-lg);
    }
    .cta-box h2{
      font-size:clamp(26px,4vw,42px);
      margin:0 0 10px;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .cta-box p{margin:0;color:rgba(255,255,255,.74);max-width:760px}
    .fixed-conversion{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:1025;
      width:min(780px,calc(100% - 34px));
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 14px 12px 18px;
      border-radius:999px;
      background:rgba(17,24,39,.94);
      color:#fff;
      box-shadow:0 22px 60px rgba(0,0,0,.28);
      border:1px solid rgba(255,255,255,.1);
      backdrop-filter:blur(18px);
    }
    .fixed-conversion strong{display:block;line-height:1.2}
    .fixed-conversion span{display:block;color:rgba(255,255,255,.64);font-size:13px}
    .fixed-conversion .btn-rou{min-height:40px;padding:11px 16px}

    .site-footer{
      background:#0b1020;
      color:#fff;
      padding:54px 0 86px;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .8fr .8fr;
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-size:18px;
      font-weight:950;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-note{color:rgba(255,255,255,.64);max-width:560px;margin:0}
    .footer-col h3{
      font-size:16px;
      font-weight:900;
      margin:0 0 12px;
    }
    .footer-links{
      display:grid;
      gap:8px;
      margin:0;
      padding:0;
    }
    .footer-links li{list-style:none;color:rgba(255,255,255,.62);font-size:14px}
    .footer-links a:hover{color:#fff}
    .copyright{
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:16px;
      color:rgba(255,255,255,.52);
      font-size:13px;
    }

    @media (max-width:1024px){
      :root{--container:920px}
      .quick-search{display:none}
      .hero-layout,.news-shell,.service-band-inner,.app-stage,.proof-wrap,.about-panel{
        grid-template-columns:1fr;
      }
      .hero-copy{min-height:auto}
      .recommend-panel{position:relative;top:auto}
      .service-list{grid-template-columns:repeat(2,1fr)}
      .fixed-conversion{bottom:88px}
    }
    @media (max-width:768px){
      body{padding-bottom:82px}
      .container-rou{width:min(100% - 28px,var(--container))}
      .section{padding:58px 0}
      .site-header{height:68px}
      .nav-wrap{height:68px}
      .brand-text{max-width:230px;font-size:16px}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .nav-main{display:none}
      .nav-cta .btn-rou{display:none}
      .mobile-bottom-tab{display:flex}
      .hero{padding:26px 0 26px}
      .hero-apply{padding:24px;border-radius:26px}
      .hero h1{font-size:clamp(31px,11vw,46px)}
      .hero-sub{font-size:16px}
      .apply-panel{padding:20px;border-radius:24px}
      .hero-metrics{display:grid;grid-template-columns:1fr 1fr}
      .metric-pill{min-width:0}
      .section-head.split{grid-template-columns:1fr}
      .selling-grid,.review-grid,.offer-strip,.footer-grid{
        grid-template-columns:1fr;
      }
      .service-list{grid-template-columns:1fr;padding:20px}
      .service-copy{padding:28px 22px}
      .news-item{grid-template-columns:1fr auto;gap:12px}
      .news-date{width:auto;height:auto;padding:8px 12px;grid-column:1/3;align-items:flex-start}
      .cta-box{grid-template-columns:1fr;padding:26px;border-radius:26px}
      .fixed-conversion{
        left:12px;
        right:12px;
        width:auto;
        transform:none;
        border-radius:22px;
        bottom:84px;
      }
      .fixed-conversion span{display:none}
      .site-footer{padding-bottom:106px}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      .hero-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .btn-rou{width:100%}
      .hero-metrics{grid-template-columns:1fr}
      .apply-panel-title{align-items:flex-start}
      .section-title{font-size:28px}
      .news-item{padding:16px}
      .news-arrow{display:none}
      .device-board{min-height:340px;padding:20px;border-radius:26px}
      .offer-strip{padding:16px}
      .fixed-conversion strong{font-size:14px}
      .fixed-conversion .btn-rou{padding:10px 13px;font-size:13px}
    }

/* 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}