/* roulang page: index */
:root{
      --bg:#0b1020;
      --bg-soft:#11182c;
      --paper:#ffffff;
      --paper-soft:#f8fafc;
      --ink:#172033;
      --muted:#64748b;
      --weak:#94a3b8;
      --line:rgba(148,163,184,.24);
      --brand:#f97316;
      --brand-deep:#c2410c;
      --gold:#fbbf24;
      --violet:#7c3aed;
      --cyan:#06b6d4;
      --green:#10b981;
      --radius-lg:28px;
      --radius-md:18px;
      --radius-sm:12px;
      --shadow:0 24px 70px rgba(15,23,42,.16);
      --shadow-soft:0 16px 42px rgba(15,23,42,.10);
      --nav-h:76px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      color:var(--ink);
      background:
        radial-gradient(circle at 10% 0%, rgba(249,115,22,.16), transparent 30%),
        radial-gradient(circle at 90% 10%, rgba(124,58,237,.13), transparent 32%),
        linear-gradient(180deg,#fff 0%,#f8fafc 46%,#eef2ff 100%);
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;
      line-height:1.72;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(249,115,22,.22)}
    .site-container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
    .glass{
      background:rgba(255,255,255,.78);
      backdrop-filter:saturate(160%) blur(18px);
      -webkit-backdrop-filter:saturate(160%) blur(18px);
      border:1px solid rgba(255,255,255,.68);
      box-shadow:0 18px 54px rgba(15,23,42,.10);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.55rem;
      border-radius:999px;
      padding:.9rem 1.2rem;
      font-weight:800;
      letter-spacing:.01em;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--brand),#ef4444 48%,var(--violet));
      box-shadow:0 18px 34px rgba(249,115,22,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 48px rgba(249,115,22,.34)}
    .btn-secondary{
      color:#172033;
      background:rgba(255,255,255,.88);
      border-color:rgba(148,163,184,.28);
      box-shadow:0 12px 24px rgba(15,23,42,.08);
    }
    .btn-secondary:hover{transform:translateY(-2px);border-color:rgba(249,115,22,.42);box-shadow:0 18px 32px rgba(15,23,42,.12)}
    .btn-dark{
      color:#fff;
      background:#111827;
      box-shadow:0 16px 32px rgba(17,24,39,.18);
    }
    .btn-dark:hover{transform:translateY(-2px);background:#020617}
    .btn:focus-visible,.nav-link:focus-visible,.chip:focus-visible,input:focus-visible{
      outline:3px solid rgba(249,115,22,.34);
      outline-offset:3px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      border-radius:999px;
      padding:.42rem .75rem;
      font-size:.82rem;
      font-weight:800;
      color:#9a3412;
      background:rgba(255,237,213,.9);
      border:1px solid rgba(251,146,60,.24);
    }
    .section{padding:86px 0}
    .section-tight{padding:62px 0}
    .section-title{
      font-size:clamp(2rem,3vw,3.05rem);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:950;
      color:#101827;
    }
    .section-lead{
      margin-top:1rem;
      color:var(--muted);
      font-size:1.05rem;
      max-width:760px;
    }
    .card{
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.88);
      border:1px solid rgba(148,163,184,.22);
      box-shadow:var(--shadow-soft);
      transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(249,115,22,.28)}
    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      border-bottom:1px solid rgba(148,163,184,.18);
      backdrop-filter:saturate(150%) blur(18px);
      -webkit-backdrop-filter:saturate(150%) blur(18px);
    }
    .nav-shell{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1.25rem;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:.75rem;
      min-width:0;
      font-weight:950;
      letter-spacing:-.03em;
      color:#101827;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.42), transparent 24%),
        linear-gradient(135deg,var(--brand),#ef4444 52%,var(--violet));
      box-shadow:0 16px 30px rgba(249,115,22,.25);
      flex:0 0 auto;
    }
    .brand-text{font-size:1.02rem;line-height:1.15}
    .brand-sub{display:block;font-size:.72rem;color:var(--muted);font-weight:750;letter-spacing:0;margin-top:.08rem}
    .nav-main{display:flex;align-items:center;gap:.35rem}
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:.55rem .9rem;
      border-radius:999px;
      color:#475569;
      font-weight:800;
      transition:background .2s ease,color .2s ease;
    }
    .nav-link:hover{background:rgba(249,115,22,.10);color:#9a3412}
    .nav-link.active{background:#111827;color:#fff}
    .nav-side{display:flex;align-items:center;gap:.55rem}
    .mini-search{
      display:flex;
      align-items:center;
      gap:.45rem;
      min-width:230px;
      padding:.48rem .75rem;
      border-radius:999px;
      background:#f8fafc;
      border:1px solid rgba(148,163,184,.24);
      color:var(--muted);
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .mini-search:focus-within{background:#fff;border-color:rgba(249,115,22,.48);box-shadow:0 0 0 4px rgba(249,115,22,.10)}
    .mini-search input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      font-size:.88rem;
      color:#172033;
    }
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid rgba(148,163,184,.25);
      border-radius:14px;
      background:#fff;
      color:#111827;
    }
    .notice-row{
      border-top:1px solid rgba(148,163,184,.14);
      background:rgba(248,250,252,.82);
    }
    .notice-inner{
      min-height:44px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .notice-inner::-webkit-scrollbar{display:none}
    .chip-line{display:flex;align-items:center;gap:.55rem;white-space:nowrap}
    .chip{
      display:inline-flex;
      align-items:center;
      gap:.4rem;
      border-radius:999px;
      padding:.42rem .72rem;
      color:#334155;
      background:#fff;
      border:1px solid rgba(148,163,184,.23);
      font-weight:800;
      font-size:.82rem;
      transition:transform .2s ease, border-color .2s ease, color .2s ease;
    }
    .chip:hover{transform:translateY(-1px);border-color:rgba(249,115,22,.45);color:#9a3412}
    .hero{
      position:relative;
      overflow:hidden;
      padding:76px 0 42px;
      color:#fff;
      background:
        linear-gradient(115deg,rgba(11,16,32,.96),rgba(30,41,59,.80) 46%,rgba(124,58,237,.78)),
        radial-gradient(circle at 18% 22%, rgba(249,115,22,.58), transparent 26%),
        radial-gradient(circle at 84% 10%, rgba(6,182,212,.34), transparent 28%);
    }
    .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:54px 54px;
      mask-image:linear-gradient(180deg,#000,transparent 82%);
      pointer-events:none;
    }
    .hero-stage{
      position:relative;
      border-radius:36px;
      min-height:560px;
      padding:44px;
      display:grid;
      align-content:end;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.16);
      box-shadow:0 34px 90px rgba(0,0,0,.30);
      background:
        linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02)),
        radial-gradient(circle at 68% 28%,rgba(251,191,36,.24),transparent 24%),
        radial-gradient(circle at 28% 30%,rgba(249,115,22,.30),transparent 22%);
    }
    .hero-stage:after{
      content:"";
      position:absolute;
      right:-90px;
      top:-80px;
      width:520px;
      height:520px;
      border-radius:50%;
      background:conic-gradient(from 120deg,rgba(249,115,22,.28),rgba(124,58,237,.22),rgba(6,182,212,.16),rgba(249,115,22,.28));
      filter:blur(1px);
      opacity:.92;
    }
    .hero-content{position:relative;z-index:2;max-width:910px}
    .hero h1{
      margin:0;
      font-size:clamp(2.45rem,6vw,5.4rem);
      line-height:1.02;
      letter-spacing:-.075em;
      font-weight:1000;
      text-wrap:balance;
    }
    .hero-desc{
      margin-top:1.35rem;
      max-width:760px;
      color:rgba(255,255,255,.82);
      font-size:clamp(1rem,1.5vw,1.18rem);
    }
    .hero-actions{margin-top:1.8rem;display:flex;align-items:center;gap:.85rem;flex-wrap:wrap}
    .hero-metrics{
      margin-top:2rem;
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:.85rem;
      max-width:820px;
    }
    .metric{
      border-radius:22px;
      padding:1rem;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(10px);
    }
    .metric strong{display:block;font-size:1.35rem;line-height:1;color:#fff}
    .metric span{display:block;margin-top:.4rem;color:rgba(255,255,255,.72);font-size:.86rem}
    .hero-strip{
      position:relative;
      z-index:2;
      margin-top:1.15rem;
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:1rem;
    }
    .strip-card{
      border-radius:24px;
      padding:1.1rem;
      background:rgba(255,255,255,.92);
      color:#172033;
      border:1px solid rgba(255,255,255,.42);
      box-shadow:0 18px 42px rgba(0,0,0,.15);
    }
    .strip-card small{color:var(--muted);font-weight:850}
    .strip-card p{margin:.35rem 0 0;color:#334155;font-size:.94rem;line-height:1.55}
    .timeline-line{
      position:relative;
      display:grid;
      gap:1rem;
    }
    .timeline-line:before{
      content:"";
      position:absolute;
      left:20px;
      top:22px;
      bottom:22px;
      width:2px;
      background:linear-gradient(var(--brand),var(--violet));
      opacity:.45;
    }
    .step-card{
      position:relative;
      display:grid;
      grid-template-columns:42px 1fr;
      gap:1rem;
      padding:1.1rem;
      border-radius:22px;
      background:#fff;
      border:1px solid rgba(148,163,184,.22);
      box-shadow:0 14px 30px rgba(15,23,42,.07);
    }
    .step-num{
      position:relative;
      z-index:1;
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      font-weight:950;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--violet));
    }
    .progress-wrap{
      height:12px;
      border-radius:999px;
      overflow:hidden;
      background:#e2e8f0;
      box-shadow:inset 0 1px 3px rgba(15,23,42,.08);
    }
    .progress-bar{
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--brand),var(--gold),var(--green));
      box-shadow:0 0 18px rgba(249,115,22,.34);
    }
    .deal-card{
      position:relative;
      overflow:hidden;
      padding:1.25rem;
      min-height:255px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .deal-card:before{
      content:"";
      position:absolute;
      inset:auto -50px -80px auto;
      width:180px;
      height:180px;
      border-radius:50%;
      background:rgba(249,115,22,.10);
    }
    .deal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}
    .deal-tag{
      display:inline-flex;
      align-items:center;
      border-radius:999px;
      padding:.32rem .62rem;
      background:#fff7ed;
      color:#9a3412;
      font-weight:900;
      font-size:.78rem;
      border:1px solid rgba(251,146,60,.22);
    }
    .deal-title{margin-top:.9rem;font-size:1.18rem;line-height:1.25;font-weight:950;color:#101827}
    .deal-desc{margin-top:.55rem;color:var(--muted);font-size:.94rem}
    .deal-foot{margin-top:1.1rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
    .avatar-stack{display:flex;align-items:center}
    .avatar{
      width:30px;height:30px;border-radius:999px;
      display:grid;place-items:center;
      margin-left:-7px;
      color:#fff;
      font-size:.72rem;
      font-weight:900;
      border:2px solid #fff;
      background:linear-gradient(135deg,#fb923c,#7c3aed);
    }
    .avatar:first-child{margin-left:0}
    .news-list{display:grid;gap:.75rem}
    .news-item{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:.85rem;
      align-items:center;
      padding:1rem;
      border-radius:18px;
      background:#fff;
      border:1px solid rgba(148,163,184,.20);
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }
    .news-item:hover{transform:translateX(4px);border-color:rgba(249,115,22,.34);box-shadow:0 14px 28px rgba(15,23,42,.08)}
    .news-dot{width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--violet))}
    .news-title{font-weight:900;color:#172033;line-height:1.35}
    .news-meta{color:var(--weak);font-size:.86rem;white-space:nowrap}
    .quote-card{
      padding:1.4rem;
      border-radius:28px;
      background:#101827;
      color:#fff;
      box-shadow:0 24px 58px rgba(15,23,42,.22);
      border:1px solid rgba(255,255,255,.10);
    }
    .quote-card p{color:rgba(255,255,255,.76)}
    .quote-person{margin-top:1rem;display:flex;align-items:center;gap:.75rem}
    .quote-icon{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      background:rgba(249,115,22,.18);
      color:#fed7aa;
      font-weight:950;
    }
    details.faq{
      border-radius:22px;
      background:#fff;
      border:1px solid rgba(148,163,184,.22);
      box-shadow:0 12px 28px rgba(15,23,42,.06);
      overflow:hidden;
    }
    details.faq + details.faq{margin-top:.9rem}
    details.faq summary{
      list-style:none;
      cursor:pointer;
      padding:1.15rem 1.25rem;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:1rem;
      font-weight:950;
      color:#111827;
    }
    details.faq summary::-webkit-details-marker{display:none}
    details.faq summary:after{
      content:"+";
      width:30px;height:30px;border-radius:999px;
      display:grid;place-items:center;
      background:#fff7ed;
      color:#c2410c;
      flex:0 0 auto;
      transition:transform .2s ease;
    }
    details.faq[open] summary:after{content:"—";transform:rotate(180deg)}
    .faq-body{
      padding:0 1.25rem 1.25rem;
      color:var(--muted);
      border-top:1px solid rgba(148,163,184,.16);
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:36px;
      padding:2rem;
      color:#fff;
      background:
        linear-gradient(135deg,#111827,#7c2d12 52%,#4c1d95),
        radial-gradient(circle at 10% 10%,rgba(251,191,36,.22),transparent 28%);
      box-shadow:0 32px 86px rgba(15,23,42,.26);
    }
    .cta-panel:after{
      content:"";
      position:absolute;
      right:-120px;
      top:-120px;
      width:330px;height:330px;border-radius:50%;
      background:rgba(255,255,255,.10);
    }
    .input-wrap{
      display:flex;
      gap:.7rem;
      padding:.5rem;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.16);
    }
    .input-wrap input{
      flex:1;
      min-width:0;
      border:0;
      outline:0;
      color:#fff;
      background:transparent;
      padding:0 .8rem;
    }
    .input-wrap input::placeholder{color:rgba(255,255,255,.62)}
    .footer{
      color:rgba(255,255,255,.72);
      background:#080d1a;
      padding:54px 0 30px;
    }
    .footer a{color:rgba(255,255,255,.72);transition:color .2s ease}
    .footer a:hover{color:#fed7aa}
    .footer-brand{color:#fff;font-weight:950;letter-spacing:-.03em;font-size:1.1rem}
    .footer-line{border-top:1px solid rgba(255,255,255,.10);margin-top:2rem;padding-top:1.25rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
    @media (max-width:1024px){
      .site-container{width:min(100% - 32px,940px)}
      .nav-side .mini-search{display:none}
      .hero-stage{min-height:520px;padding:34px}
      .hero-strip{grid-template-columns:1fr}
      .section{padding:72px 0}
    }
    @media (max-width:768px){
      :root{--nav-h:68px}
      .site-container{width:min(100% - 24px,720px)}
      .mobile-toggle{display:grid;place-items:center}
      .nav-main{
        position:absolute;
        left:12px;
        right:12px;
        top:calc(var(--nav-h) + 8px);
        display:none;
        padding:.75rem;
        border-radius:22px;
        background:#fff;
        border:1px solid rgba(148,163,184,.22);
        box-shadow:0 18px 48px rgba(15,23,42,.14);
      }
      .nav-main.open{display:grid}
      .nav-link{justify-content:center}
      .nav-side{gap:.35rem}
      .notice-inner{align-items:flex-start;flex-direction:column;padding:.62rem 0}
      .hero{padding:42px 0 28px}
      .hero-stage{min-height:580px;padding:24px;border-radius:28px}
      .hero-metrics{grid-template-columns:1fr}
      .section{padding:58px 0}
      .section-tight{padding:48px 0}
      .news-item{grid-template-columns:auto 1fr}
      .news-meta{grid-column:2}
      .input-wrap{border-radius:24px;flex-direction:column;padding:.75rem}
      .input-wrap input{padding:.85rem}
      .input-wrap .btn{width:100%}
    }
    @media (max-width:520px){
      .brand-text{font-size:.9rem;max-width:210px}
      .brand-sub{font-size:.66rem}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .hero h1{font-size:2.25rem}
      .hero-stage{min-height:620px}
      .hero-actions .btn{width:100%}
      .section-title{font-size:1.9rem}
      .deal-foot{align-items:flex-start;flex-direction:column}
      .cta-panel{padding:1.35rem;border-radius:28px}
    }