/* roulang page: index */
:root{
      --color-bg:#fbf7f0;
      --color-bg-2:#fffaf2;
      --color-surface:#ffffff;
      --color-ink:#111827;
      --color-muted:#667085;
      --color-light:#f3efe8;
      --color-line:rgba(17,24,39,.10);
      --color-primary:#f97316;
      --color-primary-2:#f59e0b;
      --color-accent:#0f766e;
      --color-accent-soft:#dcfce7;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --shadow-soft:0 18px 60px rgba(17,24,39,.10);
      --shadow-card:0 14px 38px rgba(17,24,39,.08);
      --shadow-hover:0 22px 70px rgba(17,24,39,.15);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
      line-height:1.72;
      color:var(--color-ink);
      background:
        radial-gradient(circle at 12% 4%, rgba(249,115,22,.16), transparent 30%),
        radial-gradient(circle at 92% 0%, rgba(15,118,110,.15), transparent 28%),
        linear-gradient(180deg,var(--color-bg),#fff 48%,var(--color-bg-2));
      min-height:100vh;
      padding-bottom:86px;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img,svg{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(249,115,22,.22)}
    .container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .site-header{
      position:sticky;
      top:16px;
      z-index:50;
      padding:10px 0;
      transition:transform .25s ease;
    }
    .nav-shell{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:10px 12px 10px 18px;
      border:1px solid rgba(255,255,255,.68);
      background:rgba(255,255,255,.76);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
      box-shadow:0 12px 46px rgba(17,24,39,.10);
      border-radius:999px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:0;
      font-weight:900;
      letter-spacing:-.03em;
      color:var(--color-ink);
      white-space:nowrap;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:950;
      background:linear-gradient(135deg,var(--color-primary),#fb7185 58%,var(--color-accent));
      box-shadow:0 10px 26px rgba(249,115,22,.28);
      flex:0 0 auto;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:6px;
      padding:4px;
      background:rgba(17,24,39,.04);
      border-radius:999px;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 18px;
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      color:#475467;
      transition:background .22s ease,color .22s ease,transform .22s ease;
    }
    .nav-link:hover{background:#fff;color:var(--color-primary);transform:translateY(-1px)}
    .nav-link.active{background:var(--color-ink);color:#fff;box-shadow:0 10px 22px rgba(17,24,39,.18)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{
      display:flex;
      align-items:center;
      gap:8px;
      width:210px;
      height:42px;
      padding:0 14px;
      border:1px solid var(--color-line);
      background:#fff;
      border-radius:999px;
      color:#667085;
    }
    .nav-search input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--color-ink);
      font-size:14px;
    }
    .nav-search:focus-within{border-color:rgba(249,115,22,.55);box-shadow:0 0 0 4px rgba(249,115,22,.12)}
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border:0;
      border-radius:50%;
      color:#fff;
      background:var(--color-ink);
      align-items:center;
      justify-content:center;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      line-height:1;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,input:focus-visible,select:focus-visible{
      outline:3px solid rgba(249,115,22,.32);
      outline-offset:3px;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-primary-2));
      box-shadow:0 12px 26px rgba(249,115,22,.25);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(249,115,22,.34)}
    .btn-dark{background:var(--color-ink);color:#fff;box-shadow:0 12px 28px rgba(17,24,39,.20)}
    .btn-dark:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(17,24,39,.26)}
    .btn-soft{background:#fff;color:var(--color-ink);border-color:var(--color-line)}
    .btn-soft:hover{transform:translateY(-2px);border-color:rgba(249,115,22,.38);box-shadow:var(--shadow-card)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:30px;
      padding:0 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:900;
      color:#9a3412;
      background:#ffedd5;
      border:1px solid rgba(249,115,22,.16);
    }
    .badge.green{color:#047857;background:#d1fae5;border-color:rgba(16,185,129,.18)}
    .badge.dark{color:#fff;background:rgba(17,24,39,.92);border-color:rgba(255,255,255,.08)}
    .section{padding:84px 0}
    .section.tight{padding:58px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:26px;
      margin-bottom:30px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary);
      font-weight:950;
      font-size:14px;
      letter-spacing:.02em;
      margin-bottom:10px;
    }
    .section-title{
      font-size:clamp(28px,3.4vw,46px);
      line-height:1.16;
      letter-spacing:-.04em;
      font-weight:950;
      margin:0;
    }
    .section-desc{
      margin:12px 0 0;
      color:var(--color-muted);
      max-width:700px;
      font-size:16px;
    }
    .hero{
      position:relative;
      padding:54px 0 72px;
      overflow:hidden;
    }
    .hero-stage{
      position:relative;
      border-radius:36px;
      overflow:hidden;
      min-height:630px;
      padding:34px;
      background:
        linear-gradient(135deg,rgba(17,24,39,.92),rgba(31,41,55,.86)),
        radial-gradient(circle at 72% 18%,rgba(249,115,22,.75),transparent 34%),
        linear-gradient(135deg,#1f2937,#111827);
      box-shadow:0 32px 90px rgba(17,24,39,.24);
      color:#fff;
    }
    .hero-stage:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px),
        linear-gradient(0deg,rgba(255,255,255,.05) 1px,transparent 1px);
      background-size:54px 54px;
      mask-image:linear-gradient(180deg,#000,transparent 78%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:30px;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:560px;
      padding:10px 0;
    }
    .hero h1{
      max-width:820px;
      margin:20px 0 18px;
      font-size:clamp(38px,6vw,76px);
      line-height:1.02;
      letter-spacing:-.07em;
      font-weight:1000;
    }
    .hero-lead{
      max-width:720px;
      color:rgba(255,255,255,.78);
      font-size:18px;
      line-height:1.86;
      margin:0;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:36px;
      max-width:760px;
    }
    .metric-tile{
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.08);
      border-radius:22px;
      padding:18px;
      backdrop-filter:blur(14px);
    }
    .metric-tile strong{
      display:block;
      font-size:28px;
      line-height:1;
      letter-spacing:-.04em;
    }
    .metric-tile span{
      display:block;
      margin-top:8px;
      color:rgba(255,255,255,.68);
      font-size:13px;
      font-weight:700;
    }
    .trial-card{
      align-self:stretch;
      border-radius:30px;
      background:rgba(255,255,255,.94);
      color:var(--color-ink);
      padding:24px;
      box-shadow:0 22px 70px rgba(0,0,0,.20);
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .countdown-bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:14px;
      border-radius:22px;
      background:linear-gradient(135deg,#fff7ed,#ffedd5);
      border:1px solid rgba(249,115,22,.18);
    }
    .countdown{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
    }
    .time-box{
      min-width:50px;
      padding:7px 9px;
      text-align:center;
      color:#fff;
      background:var(--color-ink);
      border-radius:14px;
      font-weight:950;
      line-height:1.05;
    }
    .time-box small{display:block;font-size:10px;color:rgba(255,255,255,.64);font-weight:700;margin-top:3px}
    .trial-form{
      display:grid;
      gap:12px;
      margin-top:2px;
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field{
      display:flex;
      flex-direction:column;
      gap:7px;
    }
    .field label{
      font-size:13px;
      color:#344054;
      font-weight:900;
    }
    .field input,.field select{
      width:100%;
      min-height:48px;
      border:1px solid var(--color-line);
      border-radius:16px;
      padding:0 14px;
      color:var(--color-ink);
      background:#fff;
      outline:0;
      transition:border-color .2s ease,box-shadow .2s ease;
    }
    .field input:focus,.field select:focus{
      border-color:rgba(249,115,22,.55);
      box-shadow:0 0 0 4px rgba(249,115,22,.12);
    }
    .quota{
      padding:16px;
      border-radius:22px;
      background:#f8fafc;
      border:1px solid var(--color-line);
    }
    .quota-line{
      height:9px;
      border-radius:999px;
      background:#e5e7eb;
      overflow:hidden;
      margin:10px 0 8px;
    }
    .quota-line span{
      display:block;
      height:100%;
      width:18%;
      border-radius:999px;
      background:linear-gradient(90deg,#ef4444,var(--color-primary));
    }
    .mini-list{display:grid;gap:10px}
    .mini-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#475467;
      font-size:14px;
    }
    .mini-list li:before{
      content:"";
      width:8px;height:8px;
      margin-top:9px;
      border-radius:50%;
      background:var(--color-primary);
      box-shadow:0 0 0 4px rgba(249,115,22,.13);
      flex:0 0 auto;
    }
    .kpi-wrap{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:stretch;
    }
    .intro-panel{
      border-radius:var(--radius-xl);
      background:#fff;
      border:1px solid var(--color-line);
      padding:34px;
      box-shadow:var(--shadow-soft);
    }
    .kpi-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .kpi-card{
      position:relative;
      overflow:hidden;
      min-height:150px;
      border-radius:24px;
      padding:22px;
      background:#fff;
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-card);
      transition:transform .22s ease,box-shadow .22s ease;
    }
    .kpi-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .kpi-card strong{
      display:block;
      font-size:34px;
      line-height:1;
      letter-spacing:-.04em;
      color:var(--color-ink);
    }
    .kpi-card span{display:block;margin-top:12px;color:var(--color-muted);font-size:14px}
    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:24px;
      align-items:start;
    }
    .news-list{
      border-radius:var(--radius-xl);
      background:#fff;
      border:1px solid var(--color-line);
      overflow:hidden;
      box-shadow:var(--shadow-soft);
    }
    .news-item{
      display:grid;
      grid-template-columns:96px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--color-line);
      transition:background .2s ease,transform .2s ease;
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:#fff7ed}
    .news-date{
      color:var(--color-primary);
      font-weight:950;
      letter-spacing:-.02em;
    }
    .news-item h3{
      margin:0 0 5px;
      font-size:18px;
      font-weight:950;
      letter-spacing:-.02em;
    }
    .news-item p{margin:0;color:var(--color-muted);font-size:14px}
    .arrow{
      width:38px;height:38px;border-radius:50%;
      display:grid;place-items:center;
      background:#f8fafc;color:#667085;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .news-item:hover .arrow{background:var(--color-ink);color:#fff;transform:translateX(2px)}
    .recommend-card{
      position:sticky;
      top:112px;
      border-radius:var(--radius-xl);
      padding:24px;
      background:linear-gradient(160deg,#111827,#263244);
      color:#fff;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .recommend-card:after{
      content:"";
      position:absolute;
      width:180px;height:180px;
      right:-70px;top:-70px;
      border-radius:50%;
      background:rgba(249,115,22,.34);
      filter:blur(6px);
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;position:relative;z-index:1}
    .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.12);
      color:rgba(255,255,255,.78);
      background:rgba(255,255,255,.08);
      font-size:13px;
      font-weight:800;
    }
    .service-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:24px;
    }
    .benefit-track{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      margin-top:18px;
    }
    .benefit-card{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:230px;
      border-radius:26px;
      padding:22px;
      background:#fff;
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-card);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .benefit-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(249,115,22,.35)}
    .benefit-card h3{margin:16px 0 8px;font-size:20px;font-weight:950;letter-spacing:-.03em}
    .benefit-card p{margin:0;color:var(--color-muted);font-size:14px}
    .price-row{
      display:flex;
      align-items:flex-end;
      gap:8px;
      margin-top:18px;
    }
    .price-row strong{font-size:30px;line-height:1;color:var(--color-primary)}
    .price-row span{color:var(--color-muted);font-size:13px}
    .side-stack{display:grid;gap:14px}
    .compact-card{
      border-radius:24px;
      padding:22px;
      background:#fff;
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-card);
    }
    .stock-alert{
      display:flex;
      align-items:center;
      gap:12px;
      color:#991b1b;
      background:#fef2f2;
      border:1px solid rgba(239,68,68,.18);
    }
    .dot-pulse{
      width:12px;height:12px;border-radius:50%;
      background:#ef4444;
      box-shadow:0 0 0 0 rgba(239,68,68,.6);
      animation:pulse 1.6s infinite;
      flex:0 0 auto;
    }
    @keyframes pulse{
      70%{box-shadow:0 0 0 12px rgba(239,68,68,0)}
      100%{box-shadow:0 0 0 0 rgba(239,68,68,0)}
    }
    .demo-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:stretch;
    }
    .steps{
      display:grid;
      gap:14px;
    }
    .step{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:16px;
      align-items:start;
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-card);
    }
    .step-no{
      width:54px;height:54px;border-radius:20px;
      display:grid;place-items:center;
      font-weight:950;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
    }
    .step h3{margin:0 0 6px;font-size:18px;font-weight:950}
    .step p{margin:0;color:var(--color-muted);font-size:14px}
    .demo-board{
      border-radius:32px;
      background:linear-gradient(160deg,#fff,#fff7ed);
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-soft);
      padding:26px;
      overflow:hidden;
    }
    .device-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
      margin-top:18px;
    }
    .device-item{
      padding:16px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--color-line);
    }
    .device-item strong{display:block;font-weight:950}
    .device-item span{display:block;color:var(--color-muted);font-size:13px;margin-top:5px}
    .poster-rail{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:4px 4px 18px;
      scroll-snap-type:x mandatory;
      scrollbar-color:rgba(249,115,22,.45) transparent;
    }
    .poster-card{
      position:relative;
      flex:0 0 220px;
      min-height:310px;
      border-radius:28px;
      overflow:hidden;
      scroll-snap-align:start;
      background:
        linear-gradient(160deg,rgba(17,24,39,.18),rgba(17,24,39,.72)),
        var(--poster);
      background-size:cover;
      background-position:center;
      box-shadow:var(--shadow-card);
      transition:transform .24s ease,box-shadow .24s ease;
    }
    .poster-card:hover{transform:translateY(-6px) scale(1.01);box-shadow:var(--shadow-hover)}
    .poster-card:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 30%,rgba(17,24,39,.86));
    }
    .poster-info{
      position:absolute;
      left:18px;right:18px;bottom:18px;
      color:#fff;
    }
    .poster-info h3{margin:0 0 7px;font-size:20px;font-weight:950}
    .poster-info p{margin:0 0 14px;color:rgba(255,255,255,.72);font-size:13px}
    .poster-cta{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      background:#fff;
      color:var(--color-ink);
      font-size:13px;
      font-weight:950;
    }
    .app-panel{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
      align-items:center;
      border-radius:36px;
      padding:34px;
      background:linear-gradient(135deg,#0f766e,#111827);
      color:#fff;
      box-shadow:0 24px 80px rgba(15,118,110,.22);
      overflow:hidden;
      position:relative;
    }
    .app-panel:after{
      content:"";
      position:absolute;
      right:-130px;bottom:-130px;
      width:330px;height:330px;
      border-radius:50%;
      background:rgba(249,115,22,.35);
    }
    .app-copy,.app-cards{position:relative;z-index:1}
    .app-cards{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .app-mini{
      min-height:150px;
      border-radius:24px;
      padding:20px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.08);
      backdrop-filter:blur(12px);
    }
    .app-mini strong{display:block;font-size:18px;font-weight:950}
    .app-mini span{display:block;margin-top:8px;color:rgba(255,255,255,.68);font-size:13px}
    .faq-grid{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      align-items:start;
    }
    .faq-aside{
      border-radius:var(--radius-xl);
      padding:28px;
      background:#fff;
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-soft);
    }
    .faq-list{display:grid;gap:12px}
    .faq-item{
      border-radius:24px;
      background:#fff;
      border:1px solid var(--color-line);
      box-shadow:var(--shadow-card);
      overflow:hidden;
    }
    .faq-q{
      width:100%;
      border:0;
      background:transparent;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:20px 22px;
      text-align:left;
      font-weight:950;
      color:var(--color-ink);
    }
    .faq-q span:first-child{font-size:17px}
    .faq-a{
      display:none;
      padding:0 22px 22px;
      color:var(--color-muted);
      font-size:15px;
    }
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-icon{transform:rotate(45deg)}
    .faq-icon{transition:transform .2s ease;font-size:24px;line-height:1}
    .site-footer{
      padding:64px 0 34px;
      background:#111827;
      color:#fff;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:34px;
      align-items:start;
    }
    .footer-name{font-size:24px;font-weight:950;letter-spacing:-.03em;margin:0 0 12px}
    .footer-desc{color:rgba(255,255,255,.68);max-width:650px;margin:0}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
    .footer-links a{
      display:inline-flex;
      min-height:38px;
      align-items:center;
      padding:0 13px;
      border-radius:999px;
      color:rgba(255,255,255,.72);
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.04);
      font-size:14px;
      font-weight:800;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .footer-links a:hover{background:#fff;color:var(--color-ink);transform:translateY(-2px)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.10);
      color:rgba(255,255,255,.52);
      font-size:13px;
    }
    .sticky-conversion{
      position:fixed;
      left:50%;
      bottom:16px;
      transform:translateX(-50%);
      z-index:60;
      width:min(960px,calc(100% - 28px));
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:12px 14px 12px 18px;
      border-radius:999px;
      background:rgba(17,24,39,.92);
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 18px 60px rgba(17,24,39,.28);
      backdrop-filter:blur(18px);
    }
    .sticky-conversion strong{font-weight:950}
    .sticky-conversion span{color:rgba(255,255,255,.66);font-size:13px}
    .mobile-panel{
      display:none;
      margin-top:10px;
      border-radius:24px;
      padding:12px;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(255,255,255,.7);
      box-shadow:var(--shadow-card);
    }
    @media (max-width:1024px){
      .hero-grid,.kpi-wrap,.news-layout,.service-grid,.demo-wrap,.app-panel,.faq-grid,.footer-grid{grid-template-columns:1fr}
      .hero-copy{min-height:auto}
      .trial-card{min-height:auto}
      .recommend-card{position:relative;top:auto}
      .nav-search{display:none}
      .section{padding:68px 0}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:768px){
      body{padding-bottom:118px}
      .container{width:min(100% - 28px,var(--container))}
      .site-header{top:8px}
      .nav-shell{border-radius:26px;padding:10px 12px}
      .brand span:last-child{max-width:190px;overflow:hidden;text-overflow:ellipsis}
      .nav-links,.nav-actions .btn{display:none}
      .menu-toggle{display:flex}
      .mobile-panel.open{display:block}
      .mobile-panel .nav-link{display:flex;width:100%;justify-content:flex-start;margin-bottom:8px;background:#f8fafc}
      .mobile-panel .btn{width:100%}
      .hero{padding-top:34px}
      .hero-stage{min-height:auto;padding:22px;border-radius:28px}
      .hero h1{font-size:clamp(34px,12vw,52px)}
      .hero-lead{font-size:16px}
      .hero-metrics,.benefit-track,.app-cards,.kpi-grid,.device-grid{grid-template-columns:1fr}
      .form-row{grid-template-columns:1fr}
      .section-head{display:block}
      .news-item{grid-template-columns:1fr;gap:8px}
      .arrow{display:none}
      .poster-card{flex-basis:190px;min-height:280px}
      .app-panel{padding:24px;border-radius:28px}
      .sticky-conversion{border-radius:24px;align-items:flex-start;flex-direction:column}
      .sticky-conversion .btn{width:100%}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      .section{padding:54px 0}
      .trial-card,.intro-panel,.demo-board,.faq-aside{padding:20px;border-radius:24px}
      .hero-actions .btn{width:100%}
      .countdown-bar{align-items:flex-start;flex-direction:column}
      .time-box{min-width:44px}
      .section-title{font-size:30px}
      .footer-grid{gap:22px}
    }