/* roulang page: index */
:root{
      --color-primary:#0F766E;
      --color-primary-dark:#115E59;
      --color-mint:#34D399;
      --color-mint-soft:#ECFDF5;
      --color-amber:#F59E0B;
      --color-bg:#F8FAF7;
      --color-bg-2:#F4F7F4;
      --color-text:#10201E;
      --color-muted:#5F6F6B;
      --color-border:#DDE7E2;
      --color-card:#FFFFFF;
      --color-panel:#10201E;
      --shadow-soft:0 18px 50px rgba(15,118,110,.10);
      --shadow-card:0 14px 36px rgba(16,32,30,.08);
      --shadow-hover:0 22px 58px rgba(15,118,110,.16);
      --radius-lg:30px;
      --radius-md:22px;
      --radius-sm:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 12% 6%, rgba(52,211,153,.18), transparent 28%),
        radial-gradient(circle at 90% 18%, rgba(245,158,11,.10), transparent 24%),
        linear-gradient(180deg,var(--color-bg),#FAFAF5 46%,var(--color-bg-2));
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      opacity:.42;
      background-image:
        linear-gradient(rgba(15,118,110,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,118,110,.055) 1px, transparent 1px);
      background-size:36px 36px;
      pointer-events:none;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .site-container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:86px 0}
    .section-tight{padding:56px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 14px;
      border:1px solid rgba(15,118,110,.14);
      background:rgba(236,253,245,.84);
      color:var(--color-primary-dark);
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      box-shadow:0 8px 24px rgba(15,118,110,.06);
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--color-mint);
      box-shadow:0 0 0 6px rgba(52,211,153,.18);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .section-head h2{
      margin:14px 0 0;
      font-size:clamp(30px,4vw,46px);
      line-height:1.18;
      letter-spacing:-.04em;
      font-weight:800;
    }
    .section-head p{
      max-width:520px;
      margin:0;
      color:var(--color-muted);
      font-size:17px;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:20px 0 12px;
      backdrop-filter:blur(16px);
    }
    .nav-panel{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:12px;
      border-radius:26px;
      background:rgba(255,255,255,.88);
      border:1px solid rgba(15,118,110,.13);
      box-shadow:var(--shadow-soft);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      padding:6px 8px 6px 6px;
      border-radius:20px;
    }
    .brand-mark{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;
      font-weight:900;
      letter-spacing:-.05em;
      background:
        linear-gradient(135deg,var(--color-primary),var(--color-mint)),
        var(--color-primary);
      box-shadow:0 12px 24px rgba(15,118,110,.24);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25}
    .brand-text strong{font-size:16px;letter-spacing:-.02em}
    .brand-text span{font-size:12px;color:var(--color-muted)}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      flex:1;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:9px 15px;
      border-radius:999px;
      border:1px solid transparent;
      background:rgba(248,250,247,.82);
      color:#31413e;
      font-weight:700;
      font-size:14px;
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-link .dot{
      width:7px;height:7px;border-radius:50%;
      background:rgba(15,118,110,.35);
    }
    .nav-link:hover,.nav-link:focus-visible{
      transform:translateY(-2px);
      background:var(--color-mint-soft);
      border-color:rgba(15,118,110,.18);
      outline:none;
    }
    .nav-link.active{
      background:linear-gradient(180deg,#ECFDF5,#DDF8EC);
      color:var(--color-primary-dark);
      border-color:rgba(15,118,110,.24);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.8);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:10px 18px;
      border-radius:999px;
      border:1px solid rgba(15,118,110,.2);
      background:var(--color-primary);
      color:#fff;
      font-weight:800;
      font-size:14px;
      box-shadow:0 14px 30px rgba(15,118,110,.22);
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-cta:hover,.nav-cta:focus-visible{
      background:var(--color-primary-dark);
      transform:translateY(-2px);
      outline:none;
      box-shadow:0 18px 38px rgba(15,118,110,.28);
    }
    .menu-toggle{
      display:none;
      width:46px;height:46px;border-radius:16px;
      border:1px solid rgba(15,118,110,.14);
      background:var(--color-mint-soft);
      color:var(--color-primary-dark);
      align-items:center;justify-content:center;
      font-weight:900;
    }
    .hero{
      padding:48px 0 74px;
      position:relative;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.04fr) minmax(360px,.96fr);
      gap:38px;
      align-items:center;
    }
    .hero-copy h1{
      margin:20px 0 18px;
      font-size:clamp(38px,6vw,66px);
      line-height:1.08;
      letter-spacing:-.065em;
      font-weight:850;
    }
    .hero-copy h1 span{
      color:var(--color-primary);
      position:relative;
      display:inline-block;
    }
    .hero-copy h1 span::after{
      content:"";
      position:absolute;
      left:4px;right:4px;bottom:5px;
      height:12px;
      background:rgba(52,211,153,.22);
      z-index:-1;
      border-radius:999px;
    }
    .hero-sub{
      max-width:650px;
      margin:0 0 28px;
      color:var(--color-muted);
      font-size:18px;
    }
    .hero-actions,.cta-actions{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:14px;
      margin:28px 0;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:50px;
      padding:13px 21px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      transition:.22s ease;
    }
    .btn-primary{
      background:var(--color-primary);
      color:#fff;
      box-shadow:0 16px 32px rgba(15,118,110,.22);
    }
    .btn-primary:hover,.btn-primary:focus-visible{
      background:var(--color-primary-dark);
      transform:translateY(-3px);
      box-shadow:0 22px 42px rgba(15,118,110,.28);
      outline:none;
    }
    .btn-secondary{
      background:#fff;
      color:var(--color-primary-dark);
      border-color:rgba(15,118,110,.16);
      box-shadow:0 10px 24px rgba(16,32,30,.06);
    }
    .btn-secondary:hover,.btn-secondary:focus-visible{
      background:var(--color-mint-soft);
      border-color:rgba(15,118,110,.3);
      transform:translateY(-3px);
      outline:none;
    }
    .metrics{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      max-width:650px;
    }
    .metric-card{
      padding:16px;
      border:1px solid rgba(15,118,110,.12);
      border-radius:20px;
      background:rgba(255,255,255,.72);
      box-shadow:0 12px 30px rgba(16,32,30,.05);
    }
    .metric-card strong{
      display:block;
      font-size:18px;
      color:var(--color-text);
      line-height:1.25;
    }
    .metric-card span{
      display:block;
      margin-top:4px;
      font-size:13px;
      color:var(--color-muted);
    }
    .sim-panel{
      position:relative;
      padding:16px;
      border-radius:34px;
      background:
        linear-gradient(180deg,rgba(16,32,30,.96),rgba(18,48,43,.94)),
        var(--color-panel);
      box-shadow:0 34px 80px rgba(16,32,30,.26);
      border:1px solid rgba(94,234,212,.18);
      overflow:hidden;
    }
    .sim-panel::before{
      content:"";
      position:absolute;
      inset:-40% -10% auto auto;
      width:280px;height:280px;
      border-radius:50%;
      background:rgba(52,211,153,.22);
      filter:blur(30px);
    }
    .sim-window{
      position:relative;
      z-index:1;
      border-radius:26px;
      background:#FDFEF9;
      overflow:hidden;
      border:1px solid rgba(255,255,255,.22);
    }
    .sim-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 16px;
      background:rgba(236,253,245,.96);
      border-bottom:1px solid rgba(15,118,110,.12);
    }
    .window-dots{display:flex;gap:6px}
    .window-dots i{width:10px;height:10px;border-radius:50%;display:block}
    .window-dots i:nth-child(1){background:#FDBA74}
    .window-dots i:nth-child(2){background:#5EEAD4}
    .window-dots i:nth-child(3){background:#0F766E}
    .sim-status{
      display:inline-flex;align-items:center;gap:8px;
      font-size:12px;font-weight:800;color:var(--color-primary-dark);
    }
    .sim-status::before{
      content:"";width:8px;height:8px;border-radius:50%;background:var(--color-mint);
      box-shadow:0 0 0 5px rgba(52,211,153,.18);
    }
    .sim-visual{
      position:relative;
      min-height:430px;
      padding:18px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.72)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }
    .sim-visual::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(248,250,247,.12),rgba(248,250,247,.88));
    }
    .device-card,.progress-card,.route-card,.keyword-stack{
      position:relative;
      z-index:2;
      background:rgba(255,255,255,.9);
      border:1px solid rgba(15,118,110,.13);
      border-radius:22px;
      box-shadow:0 16px 36px rgba(16,32,30,.10);
      backdrop-filter:blur(8px);
    }
    .device-card{
      width:72%;
      padding:16px;
      margin:14px 0 0 12px;
    }
    .device-screen{
      min-height:170px;
      border-radius:18px;
      overflow:hidden;
      position:relative;
      background:#10201E;
    }
    .device-screen img{width:100%;height:190px;object-fit:cover;opacity:.78}
    .screen-caption{
      position:absolute;left:14px;right:14px;bottom:14px;
      padding:12px;
      border-radius:16px;
      color:#fff;
      background:rgba(16,32,30,.72);
      border:1px solid rgba(255,255,255,.18);
    }
    .screen-caption strong{display:block;font-size:18px;line-height:1.25}
    .screen-caption span{font-size:12px;color:rgba(255,255,255,.76)}
    .progress-card{
      width:58%;
      margin:-12px 8px 0 auto;
      padding:16px;
    }
    .progress-row{
      display:flex;align-items:center;justify-content:space-between;gap:14px;
      margin-bottom:10px;font-size:13px;font-weight:800;color:#23332f;
    }
    .bar{height:9px;border-radius:999px;background:#E8F1ED;overflow:hidden}
    .bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--color-primary),var(--color-mint))}
    .route-card{
      width:48%;
      margin:16px auto 0 0;
      padding:16px;
    }
    .route-card ul{list-style:none;padding:0;margin:12px 0 0;display:grid;gap:8px}
    .route-card li{display:flex;align-items:center;gap:8px;color:var(--color-muted);font-size:13px}
    .route-card li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--color-amber)}
    .keyword-stack{
      position:absolute;
      right:18px;
      bottom:18px;
      z-index:3;
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      width:190px;
      padding:14px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 10px;
      border-radius:999px;
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
      color:var(--color-primary-dark);
      font-size:13px;
      font-weight:800;
      line-height:1;
    }
    .chip.amber{color:#8A5400;background:#FFF7E8;border-color:rgba(245,158,11,.20)}
    .bento-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      grid-auto-rows:minmax(188px,auto);
      gap:18px;
    }
    .feature-card{
      position:relative;
      overflow:hidden;
      padding:24px;
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.86);
      border:1px solid rgba(15,118,110,.12);
      box-shadow:var(--shadow-card);
      transition:.25s ease;
    }
    .feature-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(15,118,110,.25);
    }
    .feature-card.large{
      grid-column:span 2;
      grid-row:span 2;
      background:
        linear-gradient(135deg,rgba(236,253,245,.96),rgba(255,255,255,.9)),
        #fff;
    }
    .feature-card.medium{grid-column:span 2}
    .feature-card h3{
      margin:12px 0 10px;
      font-size:24px;
      line-height:1.25;
      letter-spacing:-.03em;
      font-weight:850;
    }
    .feature-card p{
      margin:0;
      color:var(--color-muted);
      font-size:15px;
    }
    .mini-label{
      display:inline-flex;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(15,118,110,.08);
      color:var(--color-primary-dark);
      font-size:12px;
      font-weight:900;
    }
    .path-lines{
      margin-top:28px;
      display:grid;
      gap:12px;
    }
    .path-item{
      display:flex;align-items:center;gap:12px;
      padding:13px;
      border-radius:18px;
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
    }
    .path-no{
      width:34px;height:34px;border-radius:14px;
      display:grid;place-items:center;
      background:var(--color-primary);
      color:#fff;
      font-weight:900;
      flex:none;
    }
    .icon-tile{
      width:48px;height:48px;border-radius:18px;
      display:grid;place-items:center;
      background:var(--color-mint-soft);
      color:var(--color-primary-dark);
      font-size:22px;
      font-weight:900;
      margin-top:18px;
    }
    .scenario-band{
      border-radius:34px;
      padding:28px;
      border:1px solid rgba(15,118,110,.12);
      background:rgba(255,255,255,.58);
      box-shadow:var(--shadow-soft);
    }
    .masonry-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr 1fr;
      gap:18px;
      align-items:stretch;
    }
    .scene-card{
      position:relative;
      min-height:240px;
      overflow:hidden;
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
      box-shadow:var(--shadow-card);
      transition:.25s ease;
    }
    .scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .scene-card.tall{min-height:420px}
    .scene-card.wide{grid-column:span 2;min-height:250px}
    .scene-card img{
      position:absolute;inset:0;
      width:100%;height:100%;
      object-fit:cover;
    }
    .scene-card::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(16,32,30,.05),rgba(16,32,30,.82));
    }
    .scene-content{
      position:absolute;
      left:20px;right:20px;bottom:20px;
      z-index:2;
      color:#fff;
    }
    .scene-content h3{
      margin:8px 0 6px;
      font-size:24px;
      line-height:1.22;
      font-weight:850;
    }
    .scene-content p{margin:0;color:rgba(255,255,255,.78);font-size:14px}
    .compare-layout{
      display:grid;
      grid-template-columns:360px minmax(0,1fr);
      gap:20px;
      align-items:stretch;
    }
    .recommend-card{
      padding:28px;
      border-radius:30px;
      background:
        radial-gradient(circle at 80% 4%,rgba(52,211,153,.22),transparent 38%),
        linear-gradient(180deg,#10201E,#12302B);
      color:#fff;
      box-shadow:0 26px 70px rgba(16,32,30,.22);
      position:relative;
      overflow:hidden;
    }
    .recommend-card h3{
      margin:16px 0 10px;
      font-size:30px;
      line-height:1.2;
      letter-spacing:-.04em;
      font-weight:850;
    }
    .recommend-card p{color:rgba(255,255,255,.76);margin:0 0 22px}
    .recommend-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px}
    .recommend-list li{
      display:flex;gap:10px;align-items:flex-start;
      color:rgba(255,255,255,.86);
      font-size:14px;
    }
    .recommend-list li::before{
      content:"✓";
      display:grid;place-items:center;
      width:22px;height:22px;border-radius:50%;
      color:#10201E;background:var(--color-mint);
      font-weight:900;flex:none;
    }
    .compare-table{
      overflow:hidden;
      border-radius:30px;
      border:1px solid rgba(15,118,110,.12);
      background:#fff;
      box-shadow:var(--shadow-card);
    }
    .compare-row{
      display:grid;
      grid-template-columns:1.1fr repeat(3,1fr);
      border-bottom:1px solid rgba(15,118,110,.10);
    }
    .compare-row:last-child{border-bottom:none}
    .compare-cell{
      padding:18px 16px;
      border-right:1px solid rgba(15,118,110,.10);
      color:var(--color-muted);
      font-size:14px;
    }
    .compare-cell:last-child{border-right:none}
    .compare-head .compare-cell{
      background:var(--color-mint-soft);
      color:var(--color-primary-dark);
      font-weight:900;
    }
    .compare-cell:first-child{
      color:var(--color-text);
      font-weight:850;
    }
    .process-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
      align-items:center;
    }
    .process-visual{
      min-height:420px;
      border-radius:32px;
      overflow:hidden;
      position:relative;
      box-shadow:var(--shadow-soft);
      border:1px solid rgba(15,118,110,.12);
      background:#10201E;
    }
    .process-visual img{
      width:100%;height:420px;object-fit:cover;opacity:.72;
    }
    .process-visual::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(135deg,rgba(16,32,30,.84),rgba(15,118,110,.22));
    }
    .process-caption{
      position:absolute;left:26px;right:26px;bottom:26px;z-index:2;color:#fff;
    }
    .process-caption h3{font-size:30px;line-height:1.2;margin:0 0 8px;font-weight:850}
    .process-caption p{margin:0;color:rgba(255,255,255,.78)}
    .steps{display:grid;gap:14px}
    .step-card{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:16px;
      padding:18px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
      box-shadow:0 10px 28px rgba(16,32,30,.05);
      transition:.25s ease;
    }
    .step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .step-index{
      width:54px;height:54px;border-radius:20px;
      display:grid;place-items:center;
      background:var(--color-mint-soft);
      color:var(--color-primary-dark);
      font-weight:900;
      font-size:18px;
    }
    .step-card h3{margin:0 0 4px;font-size:20px;line-height:1.25;font-weight:850}
    .step-card p{margin:0;color:var(--color-muted);font-size:14px}
    .category-entry{
      display:grid;
      grid-template-columns:1fr 340px;
      gap:20px;
      align-items:stretch;
      border-radius:34px;
      overflow:hidden;
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
      box-shadow:var(--shadow-soft);
    }
    .category-copy{padding:32px}
    .category-copy h2{
      margin:12px 0 10px;
      font-size:clamp(30px,4vw,44px);
      line-height:1.15;
      letter-spacing:-.04em;
      font-weight:850;
    }
    .category-copy p{color:var(--color-muted);margin:0 0 22px}
    .category-image{
      min-height:310px;
      position:relative;
      overflow:hidden;
      background:#10201E;
    }
    .category-image img{width:100%;height:100%;object-fit:cover;opacity:.82}
    .category-image::after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(15,118,110,.10),rgba(16,32,30,.45));
    }
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .faq-item{
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
      box-shadow:0 10px 28px rgba(16,32,30,.05);
      transition:.24s ease;
    }
    .faq-item:hover{
      background:var(--color-mint-soft);
      border-color:rgba(15,118,110,.26);
      transform:translateY(-3px);
    }
    .faq-q{
      display:flex;
      align-items:flex-start;
      gap:12px;
      margin:0 0 10px;
    }
    .faq-no{
      width:30px;height:30px;border-radius:12px;
      display:grid;place-items:center;
      background:var(--color-primary);
      color:#fff;
      font-weight:900;
      font-size:12px;
      flex:none;
    }
    .faq-item h3{
      margin:0;
      font-size:19px;
      line-height:1.35;
      font-weight:850;
    }
    .faq-item p{margin:0;color:var(--color-muted);font-size:15px}
    .contact-panel{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:22px;
      padding:30px;
      border-radius:34px;
      background:
        radial-gradient(circle at 0% 0%,rgba(52,211,153,.20),transparent 35%),
        linear-gradient(135deg,#10201E,#12302B);
      color:#fff;
      box-shadow:0 28px 80px rgba(16,32,30,.25);
      overflow:hidden;
    }
    .contact-panel h2{
      margin:16px 0 10px;
      font-size:clamp(30px,4vw,46px);
      line-height:1.16;
      letter-spacing:-.04em;
      font-weight:850;
    }
    .contact-panel p{color:rgba(255,255,255,.76);margin:0}
    .contact-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .contact-tags .chip{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.16);color:#D7FFF4}
    .form-card{
      padding:22px;
      border-radius:28px;
      background:rgba(255,255,255,.96);
      color:var(--color-text);
      border:1px solid rgba(255,255,255,.3);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .field{display:flex;flex-direction:column;gap:7px}
    .field.full{grid-column:1/-1}
    .field label{font-size:13px;font-weight:850;color:#2C3B38}
    .field input,.field select,.field textarea{
      width:100%;
      border:1px solid rgba(15,118,110,.16);
      background:#FDFEF9;
      border-radius:16px;
      padding:12px 14px;
      color:var(--color-text);
      outline:none;
      transition:.2s ease;
    }
    .field textarea{min-height:110px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:var(--color-primary);
      box-shadow:0 0 0 4px rgba(52,211,153,.18);
      background:#fff;
    }
    .form-note{font-size:13px;color:var(--color-muted);margin:12px 0 0}
    .site-footer{
      margin-top:70px;
      padding:54px 0 26px;
      background:#10201E;
      color:rgba(255,255,255,.78);
      position:relative;
      overflow:hidden;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 12% 0%,rgba(52,211,153,.18),transparent 28%),
        linear-gradient(rgba(94,234,212,.04) 1px,transparent 1px),
        linear-gradient(90deg,rgba(94,234,212,.04) 1px,transparent 1px);
      background-size:auto,34px 34px,34px 34px;
      pointer-events:none;
    }
    .footer-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.35fr .75fr .75fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.10);
    }
    .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
    .footer-mark{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--color-mint),var(--color-primary));
      color:#10201E;
      font-weight:900;
    }
    .footer-brand strong{color:#fff;font-size:18px}
    .footer-grid p{margin:0;max-width:460px;color:rgba(255,255,255,.68)}
    .footer-title{font-weight:900;color:#fff;margin-bottom:12px}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:9px}
    .footer-links a{
      color:rgba(255,255,255,.72);
      transition:.2s ease;
    }
    .footer-links a:hover,.footer-links a:focus-visible{
      color:#D7FFF4;
      outline:none;
      padding-left:4px;
    }
    .copyright{
      position:relative;
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      padding-top:22px;
      font-size:14px;
      color:rgba(255,255,255,.58);
    }
    @media (max-width:1024px){
      .site-container{width:min(100% - 36px,var(--container))}
      .hero-grid,.compare-layout,.process-wrap,.contact-panel,.category-entry{grid-template-columns:1fr}
      .hero{padding-top:30px}
      .sim-visual{min-height:390px}
      .bento-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .feature-card.large,.feature-card.medium{grid-column:span 1}
      .masonry-grid{grid-template-columns:1fr 1fr}
      .scene-card.wide{grid-column:span 2}
      .category-image{min-height:260px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:768px){
      .site-header{padding-top:12px}
      .nav-panel{align-items:flex-start;flex-wrap:wrap}
      .menu-toggle{display:flex;margin-left:auto}
      .nav-cta{display:none}
      .nav-links{
        display:none;
        width:100%;
        order:4;
        flex-direction:column;
        align-items:stretch;
        padding-top:10px;
      }
      .nav-links.open{display:flex}
      .nav-link{justify-content:flex-start;width:100%;border-radius:18px}
      .section{padding:64px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .hero-copy h1{font-size:clamp(36px,10vw,46px)}
      .metrics{grid-template-columns:1fr}
      .device-card,.progress-card,.route-card{width:100%;margin:12px 0 0}
      .keyword-stack{position:relative;right:auto;bottom:auto;width:auto;margin-top:12px}
      .bento-grid,.masonry-grid,.faq-grid{grid-template-columns:1fr}
      .scene-card.wide{grid-column:span 1}
      .scene-card.tall{min-height:300px}
      .compare-row{
        grid-template-columns:1fr;
      }
      .compare-cell{
        border-right:none;
        border-bottom:1px solid rgba(15,118,110,.08);
      }
      .compare-row .compare-cell:last-child{border-bottom:none}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .site-container{width:calc(100% - 28px)}
      .nav-panel{border-radius:22px}
      .brand-text span{display:none}
      .hero-actions .btn,.cta-actions .btn{width:100%}
      .sim-panel{border-radius:26px;padding:10px}
      .sim-window{border-radius:22px}
      .sim-visual{padding:12px;min-height:360px}
      .feature-card,.scenario-band,.contact-panel,.category-copy{padding:20px}
      .process-caption{left:18px;right:18px;bottom:18px}
      .process-caption h3{font-size:24px}
    }

/* roulang page: category1 */
:root{
      --primary:#0F766E;
      --primary-dark:#115E59;
      --mint:#34D399;
      --mint-soft:#ECFDF5;
      --amber:#F59E0B;
      --amber-soft:#FFF7ED;
      --bg:#F8FAF7;
      --bg-2:#F4F7F4;
      --text:#10201E;
      --muted:#5F6F6B;
      --line:#DDE7E2;
      --card:#FFFFFF;
      --panel:#10201E;
      --radius-xl:32px;
      --radius-lg:24px;
      --radius-md:18px;
      --shadow:0 18px 50px rgba(15,118,110,.10);
      --shadow-strong:0 24px 70px rgba(15,118,110,.16);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 8%, rgba(52,211,153,.22), transparent 30%),
        radial-gradient(circle at 85% 14%, rgba(245,158,11,.11), transparent 28%),
        linear-gradient(180deg,var(--bg),#fff 48%,var(--bg-2));
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.32;
      background-image:
        linear-gradient(rgba(15,118,110,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,118,110,.08) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,#000,transparent 78%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(52,211,153,.35);color:var(--text)}
    .site-container{
      width:min(1220px,calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      padding:22px 0 10px;
      backdrop-filter:blur(14px);
    }
    .nav-panel{
      display:flex;
      align-items:center;
      gap:14px;
      min-height:76px;
      padding:12px;
      border:1px solid rgba(15,118,110,.14);
      border-radius:26px;
      background:rgba(255,255,255,.82);
      box-shadow:0 14px 40px rgba(16,32,30,.08);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:230px;
      padding:8px 10px;
      border-radius:20px;
      transition:.25s ease;
    }
    .brand:hover{background:var(--mint-soft);transform:translateY(-1px)}
    .brand-mark,.footer-mark{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      color:#fff;font-weight:800;letter-spacing:.02em;
      background:linear-gradient(135deg,var(--primary),var(--mint));
      box-shadow:0 12px 28px rgba(15,118,110,.22);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25}
    .brand-text strong{font-size:17px}
    .brand-text span{font-size:12px;color:var(--muted)}
    .nav-links{
      flex:1;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:12px 16px;
      border:1px solid transparent;
      border-radius:999px;
      color:#344642;
      font-weight:700;
      font-size:14px;
      background:rgba(248,250,247,.7);
      transition:.25s ease;
    }
    .nav-link .dot{
      width:8px;height:8px;border-radius:999px;
      background:#B9C9C3;
      transition:.25s ease;
    }
    .nav-link:hover{
      transform:translateY(-2px);
      background:var(--mint-soft);
      border-color:rgba(15,118,110,.16);
      box-shadow:0 10px 24px rgba(15,118,110,.09);
    }
    .nav-link.active{
      color:var(--primary-dark);
      background:linear-gradient(180deg,#ECFDF5,#fff);
      border-color:rgba(15,118,110,.24);
      box-shadow:inset 0 0 0 1px rgba(52,211,153,.18);
    }
    .nav-link.active .dot{background:var(--mint)}
    .nav-cta,.btn-primary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border:0;
      color:#fff;
      font-weight:800;
      border-radius:999px;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 14px 30px rgba(15,118,110,.22);
      transition:.25s ease;
    }
    .nav-cta{padding:13px 20px;white-space:nowrap}
    .nav-cta:hover,.btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 20px 46px rgba(15,118,110,.28);
      filter:saturate(1.05);
    }
    .menu-toggle{
      display:none;
      width:46px;height:46px;border-radius:16px;
      border:1px solid rgba(15,118,110,.14);
      background:#fff;color:var(--text);
      font-size:22px;
      transition:.25s ease;
    }
    .menu-toggle:hover{background:var(--mint-soft);border-color:rgba(15,118,110,.25)}
    .section{padding:78px 0}
    .section-tight{padding:56px 0}
    .eyebrow,.tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:max-content;
      padding:8px 12px;
      border-radius:999px;
      color:var(--primary-dark);
      background:rgba(236,253,245,.9);
      border:1px solid rgba(15,118,110,.14);
      font-weight:800;
      font-size:13px;
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:999px;background:var(--mint);
      box-shadow:0 0 0 5px rgba(52,211,153,.14);
    }
    .hero{
      padding:50px 0 42px;
    }
    .hero-card{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid rgba(15,118,110,.12);
      background:
        linear-gradient(90deg,rgba(255,255,255,.96),rgba(255,255,255,.88)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .hero-card:after{
      content:"";
      position:absolute;
      right:-120px;top:-120px;
      width:360px;height:360px;border-radius:999px;
      background:radial-gradient(circle,rgba(52,211,153,.28),transparent 66%);
    }
    .hero-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:34px;
      padding:54px;
      align-items:center;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin:18px 0 0;
      color:var(--muted);
      font-size:14px;
    }
    .breadcrumb a{color:var(--primary-dark);font-weight:800}
    h1{
      margin:18px 0 18px;
      max-width:760px;
      font-size:clamp(36px,5vw,62px);
      line-height:1.08;
      letter-spacing:-.04em;
      font-weight:850;
    }
    .hero-desc{
      max-width:720px;
      color:var(--muted);
      font-size:18px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
    .btn-primary,.btn-secondary{
      min-height:50px;
      padding:13px 22px;
      font-size:15px;
    }
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:999px;
      border:1px solid rgba(15,118,110,.18);
      color:var(--primary-dark);
      background:#fff;
      font-weight:800;
      transition:.25s ease;
      box-shadow:0 12px 30px rgba(16,32,30,.06);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      background:var(--mint-soft);
      border-color:rgba(15,118,110,.32);
    }
    .summary-panel{
      border-radius:28px;
      background:var(--panel);
      color:#EFFFFA;
      padding:24px;
      box-shadow:0 24px 70px rgba(16,32,30,.24);
      border:1px solid rgba(94,234,212,.18);
    }
    .summary-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
    .status-pill{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 10px;border-radius:999px;
      background:rgba(52,211,153,.13);
      border:1px solid rgba(94,234,212,.22);
      color:#BFFCEF;font-size:12px;font-weight:800;
    }
    .status-pill:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint)}
    .mini-window{
      border-radius:22px;
      overflow:hidden;
      background:#fff;
      color:var(--text);
      border:1px solid rgba(255,255,255,.18);
    }
    .mini-window img{height:160px;width:100%;object-fit:cover}
    .mini-body{padding:16px}
    .progress-row{display:grid;gap:9px;margin-top:14px}
    .progress-item{display:grid;grid-template-columns:92px 1fr 42px;gap:10px;align-items:center;font-size:12px;color:#4C5D59}
    .bar{height:9px;border-radius:999px;background:#E6EFEA;overflow:hidden}
    .bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--mint))}
    .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .chip{
      display:inline-flex;align-items:center;gap:6px;
      padding:9px 12px;border-radius:999px;
      background:#fff;border:1px solid rgba(15,118,110,.13);
      color:#38504B;font-weight:750;font-size:14px;
      box-shadow:0 8px 20px rgba(16,32,30,.04);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:24px;
      margin-bottom:28px;
    }
    .section-head h2{
      margin:12px 0 0;
      font-size:clamp(28px,3.6vw,44px);
      line-height:1.16;
      letter-spacing:-.03em;
      font-weight:850;
    }
    .section-head p{max-width:560px;color:var(--muted);margin:0}
    .main-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:24px;
      align-items:start;
    }
    .solution-list{display:grid;gap:18px}
    .solution-card{
      display:grid;
      grid-template-columns:148px 1fr;
      gap:22px;
      padding:18px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.9);
      border:1px solid rgba(15,118,110,.12);
      box-shadow:0 14px 38px rgba(15,118,110,.07);
      transition:.25s ease;
    }
    .solution-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-strong);
      border-color:rgba(15,118,110,.24);
    }
    .solution-media{
      position:relative;
      min-height:150px;
      border-radius:20px;
      overflow:hidden;
      background:var(--mint-soft);
    }
    .solution-media img{width:100%;height:100%;object-fit:cover}
    .solution-media .num{
      position:absolute;left:12px;top:12px;
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      background:rgba(16,32,30,.86);
      color:#D6FFF4;font-weight:850;
    }
    .solution-content h3{
      margin:2px 0 8px;
      font-size:23px;
      line-height:1.25;
      font-weight:850;
    }
    .solution-content p{color:var(--muted);margin:0 0 14px}
    .meta-line{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px}
    .meta{
      padding:6px 10px;
      border-radius:999px;
      color:#49605B;
      background:#F5F8F5;
      border:1px solid rgba(15,118,110,.1);
      font-size:13px;
      font-weight:750;
    }
    .text-link{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--primary-dark);font-weight:850;
      transition:.25s ease;
    }
    .text-link:hover{gap:12px;color:var(--primary)}
    .sidebar{
      position:sticky;
      top:112px;
      display:grid;
      gap:18px;
    }
    .side-card,.info-card,.faq-item,.timeline-card{
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.92);
      border:1px solid rgba(15,118,110,.12);
      box-shadow:0 14px 38px rgba(15,118,110,.07);
    }
    .side-card{padding:22px}
    .side-card.dark{
      color:#EFFFFA;
      background:
        radial-gradient(circle at 90% 0%,rgba(52,211,153,.22),transparent 38%),
        var(--panel);
      border-color:rgba(94,234,212,.18);
    }
    .side-card h3{margin:0 0 10px;font-size:21px;font-weight:850}
    .side-card p{margin:0 0 16px;color:inherit;opacity:.78}
    .keyword-cloud{display:flex;flex-wrap:wrap;gap:9px}
    .keyword-cloud a{
      padding:8px 10px;border-radius:999px;
      background:var(--mint-soft);
      color:var(--primary-dark);
      border:1px solid rgba(15,118,110,.12);
      font-size:13px;font-weight:800;
      transition:.25s ease;
    }
    .keyword-cloud a:hover{transform:translateY(-2px);background:#fff}
    .toc{display:grid;gap:10px;margin-top:12px}
    .toc a{
      display:flex;align-items:center;justify-content:space-between;
      padding:10px 12px;border-radius:14px;
      background:#F7FAF7;
      color:#36504B;
      font-weight:750;
      transition:.25s ease;
    }
    .toc a:hover{background:var(--mint-soft);color:var(--primary-dark)}
    .structure-band{
      border-radius:var(--radius-xl);
      padding:34px;
      background:
        linear-gradient(135deg,rgba(236,253,245,.95),rgba(255,255,255,.92)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      border:1px solid rgba(15,118,110,.14);
      box-shadow:var(--shadow);
    }
    .structure-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
      align-items:center;
    }
    .info-card{padding:24px}
    .info-card h3{font-size:24px;line-height:1.25;font-weight:850;margin:0 0 10px}
    .info-card p{color:var(--muted);margin:0}
    .feature-list{display:grid;gap:12px;margin-top:18px}
    .feature-list li{
      list-style:none;
      display:flex;gap:10px;align-items:flex-start;
      padding:12px;border-radius:16px;background:#fff;
      border:1px solid rgba(15,118,110,.1);
      color:#41534F;
    }
    .feature-list li:before{
      content:"";
      width:9px;height:9px;border-radius:50%;
      flex:0 0 auto;margin-top:9px;background:var(--mint);
      box-shadow:0 0 0 5px rgba(52,211,153,.12);
    }
    .visual-card{
      overflow:hidden;
      border-radius:28px;
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
      box-shadow:var(--shadow);
    }
    .visual-card img{width:100%;height:340px;object-fit:cover}
    .visual-caption{padding:18px;color:var(--muted)}
    .timeline{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .timeline-card{
      position:relative;
      padding:24px;
      min-height:220px;
      overflow:hidden;
      transition:.25s ease;
    }
    .timeline-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-strong)}
    .timeline-card .step{
      width:46px;height:46px;border-radius:18px;
      display:grid;place-items:center;
      color:#fff;font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--mint));
      margin-bottom:18px;
    }
    .timeline-card h3{font-size:20px;font-weight:850;margin:0 0 10px}
    .timeline-card p{color:var(--muted);margin:0}
    .timeline-card:after{
      content:"";
      position:absolute;
      right:-30px;bottom:-30px;
      width:110px;height:110px;border-radius:50%;
      background:rgba(52,211,153,.12);
    }
    .compare-wrap{
      display:grid;
      grid-template-columns:360px 1fr;
      gap:22px;
      align-items:stretch;
    }
    .recommend{
      border-radius:var(--radius-xl);
      padding:28px;
      color:#EFFFFA;
      background:
        radial-gradient(circle at 80% 12%,rgba(245,158,11,.18),transparent 34%),
        linear-gradient(145deg,#10201E,#12302B);
      box-shadow:0 24px 70px rgba(16,32,30,.2);
    }
    .recommend .tag{background:rgba(245,158,11,.14);color:#FFE0A7;border-color:rgba(245,158,11,.22)}
    .recommend h3{font-size:28px;font-weight:850;line-height:1.18;margin:18px 0 12px}
    .recommend p{color:rgba(239,255,250,.72)}
    .compare-table{
      overflow:hidden;
      border-radius:var(--radius-xl);
      background:#fff;
      border:1px solid rgba(15,118,110,.12);
      box-shadow:var(--shadow);
    }
    .compare-row{
      display:grid;
      grid-template-columns:1.05fr 1fr 1fr;
      border-bottom:1px solid rgba(15,118,110,.1);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-row div{padding:18px}
    .compare-row.head{
      color:var(--primary-dark);
      background:var(--mint-soft);
      font-weight:850;
    }
    .compare-row div:not(:last-child){border-right:1px solid rgba(15,118,110,.08)}
    .compare-row span{display:block;color:var(--muted);font-size:14px;margin-top:4px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .faq-item{overflow:hidden}
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:20px;
      border:0;
      background:#fff;
      color:var(--text);
      text-align:left;
      font-weight:850;
      font-size:17px;
      transition:.25s ease;
    }
    .faq-question span:first-child{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .faq-question span:first-child:before{
      content:"问";
      width:30px;height:30px;border-radius:12px;
      display:grid;place-items:center;
      background:var(--mint-soft);
      color:var(--primary-dark);
      font-size:13px;
    }
    .faq-question:hover{background:var(--mint-soft)}
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .28s ease;
    }
    .faq-answer p{
      margin:0;
      padding:0 20px 20px 60px;
      color:var(--muted);
    }
    .faq-item.open{
      border-color:rgba(15,118,110,.28);
      background:var(--mint-soft);
    }
    .faq-item.open .faq-answer{max-height:220px}
    .contact-panel{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:26px;
      align-items:stretch;
      padding:32px;
      border-radius:var(--radius-xl);
      color:#EFFFFA;
      background:
        radial-gradient(circle at 18% 0%,rgba(52,211,153,.24),transparent 32%),
        radial-gradient(circle at 90% 90%,rgba(245,158,11,.16),transparent 30%),
        var(--panel);
      box-shadow:0 28px 80px rgba(16,32,30,.22);
    }
    .contact-panel h2{
      font-size:clamp(30px,3.8vw,46px);
      line-height:1.14;
      font-weight:850;
      margin:14px 0;
    }
    .contact-panel p{color:rgba(239,255,250,.72)}
    .contact-points{display:grid;gap:10px;margin-top:24px}
    .contact-points div{
      padding:12px 14px;border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.09);
    }
    .contact-form{
      padding:22px;
      border-radius:26px;
      background:rgba(255,255,255,.96);
      color:var(--text);
      border:1px solid rgba(255,255,255,.18);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px;margin-bottom:14px}
    .field.full{grid-column:1/-1}
    .field label{font-weight:800;font-size:14px;color:#314641}
    .field input,.field select,.field textarea{
      width:100%;
      border:1px solid rgba(15,118,110,.16);
      border-radius:16px;
      padding:12px 14px;
      background:#FDFEF9;
      color:var(--text);
      outline:none;
      transition:.25s ease;
    }
    .field textarea{min-height:112px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(52,211,153,.18);
      background:#fff;
    }
    .site-footer{
      margin-top:70px;
      padding:54px 0 28px;
      color:rgba(239,255,250,.78);
      background:
        radial-gradient(circle at 8% 0%,rgba(52,211,153,.16),transparent 28%),
        #10201E;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .8fr .8fr;
      gap:28px;
      padding-bottom:28px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;align-items:center;gap:12px;
      color:#fff;margin-bottom:14px;
      font-size:18px;
    }
    .footer-title{color:#fff;font-weight:850;margin-bottom:12px}
    .footer-links{display:grid;gap:9px;padding:0;margin:0}
    .footer-links li{list-style:none}
    .footer-links a{
      color:rgba(239,255,250,.72);
      transition:.25s ease;
    }
    .footer-links a:hover{color:#BFFCEF;padding-left:4px}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:18px;
      padding-top:22px;
      color:rgba(239,255,250,.65);
      font-size:14px;
    }
    :focus-visible{
      outline:3px solid rgba(52,211,153,.45);
      outline-offset:3px;
    }
    @media (max-width:1024px){
      .hero-inner,.main-grid,.structure-grid,.compare-wrap,.contact-panel{
        grid-template-columns:1fr;
      }
      .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .timeline{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .nav-panel{flex-wrap:wrap}
      .nav-links{order:3;width:100%;justify-content:flex-start}
      .nav-cta{margin-left:auto}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 32px,1220px)}
      .site-header{padding-top:14px}
      .nav-panel{min-height:auto;border-radius:22px}
      .brand{min-width:auto;flex:1}
      .brand-text span{display:none}
      .menu-toggle{display:grid;place-items:center}
      .nav-links{
        display:none;
        flex-direction:column;
        align-items:stretch;
        order:4;
        width:100%;
        padding-top:10px;
      }
      .nav-links.open{display:flex}
      .nav-link{justify-content:flex-start;width:100%}
      .nav-cta{display:none}
      .hero-inner{padding:28px}
      .summary-panel{padding:18px}
      .section{padding:58px 0}
      .section-head{display:block}
      .solution-card{grid-template-columns:1fr}
      .solution-media{min-height:190px}
      .sidebar{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .compare-row{grid-template-columns:1fr}
      .compare-row div:not(:last-child){border-right:0;border-bottom:1px solid rgba(15,118,110,.08)}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      h1{font-size:36px}
      .hero-actions,.btn-primary,.btn-secondary{width:100%}
      .hero-actions a,.hero-actions button{width:100%}
      .chips{gap:8px}
      .chip{font-size:13px}
      .timeline{grid-template-columns:1fr}
      .structure-band,.contact-panel{padding:22px}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .progress-item{grid-template-columns:74px 1fr 36px}
      .mini-window img{height:130px}
    }