/* roulang page: index */
:root{
      --primary:#6d5dfc;
      --primary-2:#8d63ff;
      --accent:#16d6b7;
      --warm:#ffb454;
      --ink:#12152b;
      --muted:#687089;
      --soft:#f6f4ff;
      --soft-2:#eefcf8;
      --card:#ffffff;
      --line:rgba(18,21,43,.10);
      --line-strong:rgba(18,21,43,.16);
      --shadow:0 22px 60px rgba(32,31,84,.12);
      --shadow-hover:0 28px 76px rgba(32,31,84,.18);
      --radius:28px;
      --radius-sm:18px;
      --nav-w:248px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      color:var(--ink);
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","微软雅黑",Arial,sans-serif;
      line-height:1.7;
      background:
        radial-gradient(circle at 20% 2%, rgba(109,93,252,.20), transparent 34%),
        radial-gradient(circle at 92% 12%, rgba(22,214,183,.16), transparent 30%),
        linear-gradient(180deg,#fbfaff 0%,#f7f8ff 42%,#ffffff 100%);
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(109,93,252,.18)}
    .site-shell{min-height:100vh}
    .side-nav{
      position:fixed;
      inset:0 auto 0 0;
      width:var(--nav-w);
      z-index:50;
      padding:22px 18px;
      background:rgba(255,255,255,.82);
      border-right:1px solid var(--line);
      backdrop-filter:blur(22px);
      box-shadow:12px 0 34px rgba(32,31,84,.06);
      display:flex;
      flex-direction:column;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      padding:12px;
      border-radius:22px;
      background:linear-gradient(135deg,rgba(109,93,252,.10),rgba(22,214,183,.08));
      transition:.25s ease;
    }
    .brand:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(109,93,252,.14)}
    .brand-mark{
      width:44px;height:44px;border-radius:16px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;display:grid;place-items:center;
      font-weight:900;letter-spacing:.04em;
      box-shadow:0 16px 36px rgba(109,93,252,.28);
    }
    .brand-text{font-weight:900;font-size:18px;line-height:1.2;letter-spacing:-.03em}
    .nav-card{
      border:1px solid var(--line);
      border-radius:24px;
      padding:12px;
      background:#fff;
      box-shadow:0 14px 36px rgba(32,31,84,.06);
    }
    .nav-label{
      padding:8px 10px;
      color:var(--muted);
      font-size:12px;
      letter-spacing:.16em;
      font-weight:800;
    }
    .nav-link{
      display:flex;align-items:center;gap:10px;
      padding:12px 12px;
      border-radius:16px;
      font-weight:800;
      color:#303653;
      transition:.22s ease;
      outline:none;
    }
    .nav-link .dot{
      width:10px;height:10px;border-radius:999px;
      background:rgba(109,93,252,.22);
      box-shadow:0 0 0 6px rgba(109,93,252,.08);
    }
    .nav-link:hover,.nav-link:focus-visible{
      background:var(--soft);
      transform:translateX(3px);
      color:var(--primary);
    }
    .nav-link.active{
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      box-shadow:0 14px 28px rgba(109,93,252,.22);
    }
    .nav-link.active .dot{background:#fff;box-shadow:0 0 0 6px rgba(255,255,255,.16)}
    .nav-mini{
      margin-top:auto;
      padding:14px;
      border-radius:24px;
      border:1px solid rgba(109,93,252,.14);
      background:linear-gradient(180deg,#fff,rgba(246,244,255,.92));
    }
    .nav-mini p{margin:0;color:var(--muted);font-size:13px}
    .nav-mini strong{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}
    .mobile-top{
      display:none;
      position:sticky;
      top:0;
      z-index:60;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(20px);
      border-bottom:1px solid var(--line);
    }
    .mobile-inner{
      max-width:1180px;
      margin:auto;
      padding:12px 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
    }
    .mobile-nav-link{
      padding:10px 14px;
      border-radius:999px;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      font-weight:900;
      box-shadow:0 12px 30px rgba(109,93,252,.20);
    }
    .main-wrap{
      margin-left:var(--nav-w);
      min-height:100vh;
    }
    .container{
      width:min(1180px,calc(100% - 44px));
      margin:0 auto;
    }
    section{position:relative}
    .section-pad{padding:84px 0}
    .section-eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#5044d9;
      background:rgba(109,93,252,.10);
      border:1px solid rgba(109,93,252,.14);
      font-weight:900;
      font-size:13px;
    }
    .section-title{
      margin:16px 0 12px;
      font-size:clamp(30px,4vw,48px);
      line-height:1.12;
      letter-spacing:-.05em;
      font-weight:950;
    }
    .section-desc{
      max-width:760px;
      color:var(--muted);
      font-size:17px;
      margin:0;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      font-weight:900;
      border:1px solid transparent;
      transition:.22s ease;
      cursor:pointer;
      outline:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 16px 36px rgba(109,93,252,.26);
    }
    .btn-primary:hover,.btn-primary:focus-visible{transform:translateY(-2px);box-shadow:0 22px 48px rgba(109,93,252,.34)}
    .btn-secondary{
      color:var(--ink);
      background:#fff;
      border-color:var(--line-strong);
      box-shadow:0 12px 28px rgba(32,31,84,.08);
    }
    .btn-secondary:hover,.btn-secondary:focus-visible{transform:translateY(-2px);border-color:rgba(109,93,252,.36);color:var(--primary)}
    .btn-ghost{
      color:#fff;
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.26);
    }
    .btn-ghost:hover,.btn-ghost:focus-visible{background:rgba(255,255,255,.20);transform:translateY(-2px)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      padding:7px 11px;
      font-size:12px;
      font-weight:900;
      color:#4a43c8;
      background:rgba(109,93,252,.10);
      border:1px solid rgba(109,93,252,.14);
    }
    .hero{
      padding:42px 0 76px;
      overflow:hidden;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:0 0 auto 0;
      height:520px;
      background:linear-gradient(135deg,rgba(109,93,252,.10),rgba(22,214,183,.12));
      clip-path:polygon(0 0,100% 0,100% 78%,0 100%);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(210px,1fr) minmax(360px,1.7fr) minmax(210px,1fr);
      gap:24px;
      align-items:center;
    }
    .hero-heading{
      grid-column:1 / -1;
      text-align:center;
      max-width:920px;
      margin:0 auto 10px;
    }
    .hero-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      background:#fff;
      color:#5148cf;
      font-weight:900;
      box-shadow:0 12px 34px rgba(109,93,252,.12);
      border:1px solid rgba(109,93,252,.13);
      margin-bottom:18px;
    }
    h1{
      margin:0;
      font-size:clamp(38px,6vw,76px);
      line-height:1.02;
      letter-spacing:-.075em;
      font-weight:1000;
    }
    .hero-lead{
      max-width:820px;
      margin:20px auto 0;
      color:#4f5771;
      font-size:18px;
      line-height:1.85;
    }
    .value-stack{
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .value-pill{
      padding:18px;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(255,255,255,.78);
      backdrop-filter:blur(18px);
      box-shadow:0 18px 42px rgba(32,31,84,.08);
      transition:.24s ease;
    }
    .value-pill:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .value-pill strong{display:flex;align-items:center;gap:9px;font-size:16px;margin-bottom:7px}
    .value-pill span{display:block;color:var(--muted);font-size:14px;line-height:1.65}
    .stage{
      position:relative;
      border-radius:34px;
      background:linear-gradient(145deg,#171a35,#25285b 54%,#392b6e);
      padding:18px;
      box-shadow:0 34px 90px rgba(31,30,84,.26);
      overflow:hidden;
      transform:perspective(1200px) rotateX(1deg);
    }
    .stage:before{
      content:"";
      position:absolute;
      width:360px;height:360px;border-radius:50%;
      background:radial-gradient(circle,rgba(22,214,183,.30),transparent 65%);
      top:-140px;right:-120px;
    }
    .stage:after{
      content:"";
      position:absolute;
      inset:auto 26px 24px;
      height:1px;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.46),transparent);
    }
    .stage-window{
      position:relative;
      z-index:1;
      border-radius:24px;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.08);
      min-height:420px;
    }
    .stage-top{
      height:46px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:0 16px;
      background:rgba(255,255,255,.08);
      border-bottom:1px solid rgba(255,255,255,.12);
      color:#fff;
      font-weight:900;
      font-size:13px;
    }
    .lights{display:flex;gap:7px}
    .lights i{width:10px;height:10px;border-radius:50%;background:#ff6464}
    .lights i:nth-child(2){background:#ffc85b}
    .lights i:nth-child(3){background:#38e2bd}
    .stage-body{
      padding:22px;
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:16px;
      color:#fff;
    }
    .cover-card{
      min-height:282px;
      border-radius:24px;
      padding:20px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.02)),
        radial-gradient(circle at 72% 20%,rgba(255,180,84,.36),transparent 34%),
        radial-gradient(circle at 24% 75%,rgba(22,214,183,.28),transparent 36%);
      border:1px solid rgba(255,255,255,.12);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .cover-art{
      position:absolute;
      right:-30px;
      bottom:-38px;
      width:180px;height:240px;
      border-radius:36px;
      background:
        linear-gradient(160deg,rgba(255,255,255,.18),rgba(255,255,255,.02)),
        linear-gradient(135deg,#7b5cff,#16d6b7);
      transform:rotate(-9deg);
      box-shadow:0 24px 70px rgba(0,0,0,.28);
    }
    .cover-art:before,.cover-art:after{
      content:"";
      position:absolute;
      border-radius:999px;
      background:rgba(255,255,255,.28);
    }
    .cover-art:before{width:86px;height:86px;left:33px;top:35px}
    .cover-art:after{width:120px;height:16px;left:28px;bottom:52px}
    .cover-card h2{
      margin:0;
      font-size:30px;
      line-height:1.12;
      letter-spacing:-.04em;
      max-width:260px;
      position:relative;
      z-index:1;
    }
    .cover-card p{
      margin:0;
      color:rgba(255,255,255,.76);
      max-width:260px;
      position:relative;
      z-index:1;
    }
    .mini-list{display:grid;gap:12px}
    .mini-item{
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.08);
      border-radius:20px;
      padding:14px;
    }
    .mini-item b{display:block;font-size:14px;margin-bottom:4px}
    .mini-item span{display:block;color:rgba(255,255,255,.68);font-size:12px}
    .hero-actions{
      margin-top:18px;
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:12px;
    }
    .hero-data{
      grid-column:1 / -1;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin-top:18px;
    }
    .data-chip{
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      padding:18px;
      box-shadow:0 16px 42px rgba(32,31,84,.07);
      text-align:center;
    }
    .data-chip b{display:block;font-size:26px;line-height:1;color:var(--primary)}
    .data-chip span{display:block;margin-top:8px;color:var(--muted);font-size:14px}
    .band{
      background:#fff;
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .entry-layout{
      display:grid;
      grid-template-columns:.9fr 1.4fr;
      gap:28px;
      align-items:start;
    }
    .entry-panel{
      position:sticky;
      top:24px;
      border-radius:var(--radius);
      padding:28px;
      color:#fff;
      background:
        radial-gradient(circle at 88% 12%,rgba(22,214,183,.42),transparent 36%),
        linear-gradient(145deg,#25265a,#6d5dfc);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .entry-panel h2{font-size:36px;line-height:1.12;letter-spacing:-.05em;margin:14px 0 12px;font-weight:950}
    .entry-panel p{color:rgba(255,255,255,.78);margin:0 0 22px}
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .entry-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      padding:22px;
      min-height:172px;
      transition:.24s ease;
      box-shadow:0 14px 34px rgba(32,31,84,.06);
    }
    .entry-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(109,93,252,.24)}
    .entry-card .icon{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(109,93,252,.13),rgba(22,214,183,.13));
      color:var(--primary);
      font-weight:950;
      margin-bottom:16px;
    }
    .entry-card h3{margin:0 0 8px;font-size:19px;font-weight:950;letter-spacing:-.03em}
    .entry-card p{margin:0;color:var(--muted);font-size:14px}
    .milestone-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:28px;
      align-items:center;
    }
    .timeline{
      position:relative;
      padding-left:26px;
      display:grid;
      gap:18px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      top:10px;bottom:10px;left:8px;width:2px;
      background:linear-gradient(var(--primary),var(--accent));
      border-radius:99px;
    }
    .time-item{
      position:relative;
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 14px 38px rgba(32,31,84,.06);
    }
    .time-item:before{
      content:"";
      position:absolute;
      left:-25px;top:28px;
      width:14px;height:14px;border-radius:50%;
      background:#fff;border:4px solid var(--primary);
      box-shadow:0 0 0 6px rgba(109,93,252,.12);
    }
    .time-item b{display:block;font-size:18px;margin-bottom:6px}
    .time-item span{color:var(--muted);font-size:14px}
    .progress-board{
      border-radius:34px;
      padding:28px;
      background:linear-gradient(180deg,#fff,#f7f5ff);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
    }
    .progress-row{margin-top:20px}
    .progress-head{display:flex;justify-content:space-between;font-weight:900;font-size:14px;margin-bottom:9px}
    .bar{
      height:12px;border-radius:99px;background:rgba(109,93,252,.11);overflow:hidden;
    }
    .bar i{
      display:block;height:100%;border-radius:inherit;
      background:linear-gradient(90deg,var(--primary),var(--accent));
      box-shadow:0 8px 18px rgba(109,93,252,.28);
    }
    .check-list{display:grid;gap:12px;margin-top:24px}
    .check{
      display:flex;gap:12px;align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
    }
    .check i{
      flex:0 0 24px;height:24px;border-radius:50%;
      display:grid;place-items:center;
      color:#fff;background:var(--accent);
      font-style:normal;font-size:13px;font-weight:900;
    }
    .check span{color:var(--muted);font-size:14px}
    .info-layout{
      display:grid;
      grid-template-columns:1.4fr .78fr;
      gap:26px;
      align-items:start;
      margin-top:28px;
    }
    .article-list{
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .article-link{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:16px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--line);
      transition:.22s ease;
      outline:none;
    }
    .article-link:last-child{border-bottom:none}
    .article-link:hover,.article-link:focus-visible{background:var(--soft);color:var(--primary)}
    .article-link time{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      border-radius:14px;
      padding:8px 10px;
      font-size:12px;
      font-weight:900;
      min-width:64px;
      text-align:center;
    }
    .article-link h3{margin:0;font-size:18px;font-weight:950;letter-spacing:-.025em}
    .article-link p{margin:4px 0 0;color:var(--muted);font-size:14px}
    .arrow{color:var(--primary);font-weight:950}
    .recommend{
      display:grid;
      gap:16px;
    }
    .recommend-card{
      border-radius:24px;
      padding:22px;
      color:#fff;
      background:linear-gradient(145deg,#151735,#2a2b62);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .recommend-card:before{
      content:"";
      position:absolute;
      width:160px;height:160px;border-radius:50%;
      background:rgba(22,214,183,.25);
      right:-54px;top:-54px;
    }
    .recommend-card h3{position:relative;margin:0 0 8px;font-size:22px;font-weight:950}
    .recommend-card p{position:relative;margin:0 0 18px;color:rgba(255,255,255,.74);font-size:14px}
    .tag-cloud{
      display:flex;flex-wrap:wrap;gap:9px;
      border-radius:24px;padding:20px;
      background:#fff;border:1px solid var(--line);
      box-shadow:0 14px 34px rgba(32,31,84,.06);
    }
    .tag-cloud a{
      padding:8px 12px;border-radius:999px;
      background:var(--soft);
      color:#5148cf;
      font-size:13px;font-weight:900;
      transition:.2s ease;
    }
    .tag-cloud a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
    .security{
      background:
        linear-gradient(180deg,#151735,#202353);
      color:#fff;
      overflow:hidden;
    }
    .security:before{
      content:"";
      position:absolute;inset:0;
      background:
        radial-gradient(circle at 14% 18%,rgba(109,93,252,.36),transparent 30%),
        radial-gradient(circle at 82% 36%,rgba(22,214,183,.22),transparent 34%);
      opacity:.9;
    }
    .security .container{position:relative}
    .security .section-eyebrow{color:#dcd8ff;background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.16)}
    .security .section-desc{color:rgba(255,255,255,.70)}
    .guard-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      margin-top:34px;
    }
    .guard-card{
      padding:22px;
      border-radius:24px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.13);
      backdrop-filter:blur(14px);
      transition:.24s ease;
    }
    .guard-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.12)}
    .guard-card b{display:block;font-size:17px;margin-bottom:8px}
    .guard-card span{display:block;color:rgba(255,255,255,.68);font-size:14px}
    .qa-grid{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:28px;
      align-items:start;
    }
    .steps{
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      padding:24px;
      display:grid;
      gap:14px;
    }
    .step{
      display:flex;gap:14px;padding:16px;border-radius:20px;background:linear-gradient(135deg,#fff,var(--soft));
      border:1px solid rgba(109,93,252,.10);
    }
    .step em{
      flex:0 0 38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      color:#fff;background:linear-gradient(135deg,var(--primary),var(--accent));
      font-style:normal;font-weight:950;
    }
    .step b{display:block;margin-bottom:4px}
    .step span{display:block;color:var(--muted);font-size:14px}
    .faq{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid var(--line);
      background:#fff;
      border-radius:22px;
      padding:20px;
      box-shadow:0 12px 30px rgba(32,31,84,.05);
    }
    .faq-item h3{margin:0 0 8px;font-size:18px;font-weight:950}
    .faq-item p{margin:0;color:var(--muted);font-size:15px}
    .app-cta{
      padding:88px 0;
      background:
        radial-gradient(circle at 20% 10%,rgba(255,180,84,.20),transparent 30%),
        linear-gradient(135deg,#f8f5ff,#edfffb);
    }
    .cta-box{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:28px;
      align-items:center;
      border-radius:38px;
      padding:36px;
      color:#fff;
      background:
        radial-gradient(circle at 86% 18%,rgba(22,214,183,.34),transparent 33%),
        linear-gradient(135deg,#6d5dfc,#312f73);
      box-shadow:0 34px 90px rgba(68,58,176,.28);
      overflow:hidden;
      position:relative;
    }
    .cta-box h2{margin:0 0 14px;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.055em;font-weight:1000}
    .cta-box p{margin:0;color:rgba(255,255,255,.76);font-size:17px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .download-card{
      position:relative;
      border-radius:30px;
      padding:24px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      backdrop-filter:blur(14px);
    }
    .download-card ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
    .download-card li{
      display:flex;gap:10px;align-items:center;
      color:rgba(255,255,255,.82);
      font-weight:800;
    }
    .download-card li i{
      width:24px;height:24px;border-radius:50%;
      background:rgba(255,255,255,.18);
      display:grid;place-items:center;
      font-style:normal;
    }
    footer{
      margin-left:var(--nav-w);
      background:#101226;
      color:#fff;
      padding:44px 0;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
    }
    .footer-brand{font-size:22px;font-weight:950;letter-spacing:-.04em;margin-bottom:8px}
    .footer-desc{margin:0;color:rgba(255,255,255,.62);max-width:660px}
    .footer-links{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .footer-links a{
      padding:10px 13px;border-radius:999px;
      background:rgba(255,255,255,.08);
      color:rgba(255,255,255,.78);
      font-weight:800;font-size:13px;
      transition:.2s ease;
    }
    .footer-links a:hover{background:rgba(255,255,255,.16);color:#fff}
    .copyright{
      margin-top:28px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.10);
      color:rgba(255,255,255,.48);
      font-size:13px;
    }
    @media (max-width:1180px){
      .hero-grid{grid-template-columns:1fr;max-width:900px;margin:auto}
      .value-stack{display:grid;grid-template-columns:repeat(2,1fr)}
      .stage{order:2}
      .hero-data{grid-template-columns:repeat(3,1fr)}
      .entry-layout,.milestone-wrap,.info-layout,.qa-grid,.cta-box{grid-template-columns:1fr}
      .entry-panel{position:relative;top:auto}
      .guard-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:900px){
      .side-nav{display:none}
      .mobile-top{display:block}
      .main-wrap,footer{margin-left:0}
      .section-pad{padding:68px 0}
      .container{width:min(100% - 32px,1180px)}
      .hero{padding-top:34px}
      .stage-body{grid-template-columns:1fr}
      .stage-window{min-height:auto}
      .entry-grid{grid-template-columns:1fr}
      .article-link{grid-template-columns:1fr;gap:8px}
      .arrow{display:none}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:640px){
      .brand-text{font-size:15px}
      h1{font-size:40px}
      .hero-lead{font-size:16px}
      .value-stack{grid-template-columns:1fr}
      .hero-data{grid-template-columns:1fr}
      .stage{border-radius:26px;padding:12px}
      .stage-window{border-radius:20px}
      .cover-card h2{font-size:24px}
      .guard-grid{grid-template-columns:1fr}
      .cta-box{padding:24px;border-radius:28px}
      .btn{width:100%}
      .mobile-inner{padding:10px 14px}
    }