/* roulang page: index */
:root{
      --color-primary:#7c3aed;
      --color-primary-strong:#5b21b6;
      --color-primary-soft:#ede9fe;
      --color-secondary:#14b8a6;
      --color-accent:#f97316;
      --color-ink:#111827;
      --color-text:#273244;
      --color-muted:#667085;
      --color-light:#f8fafc;
      --color-panel:#ffffff;
      --color-border:#e5e7eb;
      --color-dark:#111322;
      --color-dark-card:#191d31;
      --shadow-sm:0 8px 24px rgba(17,24,39,.08);
      --shadow-md:0 18px 45px rgba(17,24,39,.12);
      --shadow-lg:0 28px 70px rgba(76,29,149,.18);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:26px;
      --radius-xl:34px;
      --container:1180px;
      --nav-height:74px;
      --transition:all .24s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 10% 0%, rgba(124,58,237,.12), transparent 28%),
        radial-gradient(circle at 95% 12%, rgba(20,184,166,.12), transparent 30%),
        linear-gradient(180deg,#fbfbff 0%,#f8fafc 42%,#ffffff 100%);
      line-height:1.72;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none;transition:var(--transition)}
    a:hover{color:var(--color-primary)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(124,58,237,.18);color:var(--color-primary-strong)}
    :focus-visible{outline:3px solid rgba(124,58,237,.3);outline-offset:3px}

    .site-container{
      width:min(var(--container),calc(100% - 40px));
      margin-inline:auto;
    }
    .section{
      padding:82px 0;
      position:relative;
    }
    .section.compact{padding:60px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:26px;
      margin-bottom:34px;
    }
    .section-title{
      margin:0;
      color:var(--color-ink);
      font-size:clamp(28px,3vw,42px);
      line-height:1.22;
      letter-spacing:-.03em;
      font-weight:850;
    }
    .section-desc{
      margin:10px 0 0;
      color:var(--color-muted);
      max-width:660px;
      font-size:16px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary-strong);
      background:rgba(124,58,237,.1);
      border:1px solid rgba(124,58,237,.16);
      border-radius:999px;
      padding:7px 12px;
      font-size:13px;
      font-weight:750;
      margin-bottom:14px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      min-height:28px;
      border-radius:999px;
      padding:5px 10px;
      font-size:12px;
      font-weight:800;
      color:var(--color-primary-strong);
      background:var(--color-primary-soft);
      border:1px solid rgba(124,58,237,.14);
      white-space:nowrap;
    }
    .badge.teal{color:#0f766e;background:#ccfbf1;border-color:#99f6e4}
    .badge.orange{color:#9a3412;background:#ffedd5;border-color:#fed7aa}
    .badge.dark{color:#fff;background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.16)}

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      border-radius:999px;
      min-height:46px;
      padding:12px 20px;
      font-weight:850;
      letter-spacing:.01em;
      transition:var(--transition);
      box-shadow:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-primary-strong));
      box-shadow:0 13px 24px rgba(124,58,237,.22);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 30px rgba(124,58,237,.28);
    }
    .btn-secondary{
      color:var(--color-primary-strong);
      background:#fff;
      border:1px solid rgba(124,58,237,.18);
    }
    .btn-secondary:hover{
      background:var(--color-primary-soft);
      color:var(--color-primary-strong);
      transform:translateY(-2px);
    }
    .btn-ghost{
      color:var(--color-text);
      background:rgba(255,255,255,.72);
      border:1px solid var(--color-border);
    }
    .btn-ghost:hover{
      background:#fff;
      color:var(--color-primary-strong);
      transform:translateY(-2px);
      box-shadow:var(--shadow-sm);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.86);
      backdrop-filter:saturate(180%) blur(18px);
      border-bottom:1px solid rgba(229,231,235,.8);
    }
    .nav-wrap{
      min-height:var(--nav-height);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
      font-weight:900;
      color:var(--color-ink);
      letter-spacing:-.02em;
    }
    .brand-icon{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(255,255,255,.2),transparent),
        linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      box-shadow:0 14px 25px rgba(124,58,237,.24);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.12;
      font-size:18px;
    }
    .brand-sub{
      color:var(--color-muted);
      font-size:11px;
      font-weight:700;
      letter-spacing:.08em;
      margin-top:3px;
    }
    .nav-main{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      margin-left:18px;
    }
    .nav-link{
      position:relative;
      padding:9px 14px;
      border-radius:999px;
      color:#344054;
      font-size:14px;
      font-weight:800;
    }
    .nav-link:hover,
    .nav-link.active{
      color:var(--color-primary-strong);
      background:rgba(124,58,237,.09);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
    }
    .search-box{
      display:flex;
      align-items:center;
      gap:8px;
      width:260px;
      height:42px;
      padding:0 13px;
      border:1px solid var(--color-border);
      border-radius:999px;
      background:#fff;
      color:var(--color-muted);
      box-shadow:0 8px 18px rgba(17,24,39,.04);
      transition:var(--transition);
    }
    .search-box:focus-within{
      border-color:rgba(124,58,237,.5);
      box-shadow:0 0 0 4px rgba(124,58,237,.12);
    }
    .search-box input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--color-text);
      font-size:14px;
      margin:0;
      height:auto;
      box-shadow:none;
    }
    .search-box input::placeholder{color:#98a2b3}
    .nav-small-btn{
      min-height:40px;
      padding:10px 14px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--color-border);
      color:#344054;
      font-weight:850;
      font-size:14px;
    }
    .nav-small-btn:hover{
      color:var(--color-primary-strong);
      border-color:rgba(124,58,237,.28);
      background:#fbfaff;
      transform:translateY(-1px);
    }
    .nav-highlight{
      min-height:40px;
      padding:10px 16px;
      border-radius:999px;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      font-weight:900;
      font-size:14px;
      box-shadow:0 12px 22px rgba(124,58,237,.22);
    }
    .nav-highlight:hover{
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 16px 26px rgba(124,58,237,.3);
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--color-border);
      border-radius:14px;
      background:#fff;
      color:var(--color-ink);
      align-items:center;
      justify-content:center;
      font-size:22px;
    }

    .hero{
      padding:28px 0 58px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.92),rgba(248,250,252,.72)),
        radial-gradient(circle at 18% 20%,rgba(124,58,237,.13),transparent 34%);
      border-bottom:1px solid rgba(229,231,235,.72);
    }
    .hero-topbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      min-height:54px;
      padding:12px 16px;
      border:1px solid rgba(124,58,237,.13);
      border-radius:20px;
      background:rgba(255,255,255,.78);
      box-shadow:var(--shadow-sm);
      margin-bottom:22px;
    }
    .hero-topbar strong{color:var(--color-ink)}
    .hero-topbar span{color:var(--color-muted);font-size:14px}
    .hero-banner{
      display:grid;
      grid-template-columns:minmax(0,1.3fr) minmax(320px,.7fr);
      gap:22px;
      align-items:stretch;
    }
    .hero-copy{
      min-height:260px;
      border-radius:var(--radius-xl);
      padding:34px;
      background:
        linear-gradient(135deg,rgba(124,58,237,.08),rgba(20,184,166,.08)),
        #fff;
      border:1px solid rgba(229,231,235,.9);
      box-shadow:var(--shadow-md);
      overflow:hidden;
      position:relative;
    }
    .hero-copy:after{
      content:"";
      position:absolute;
      right:-70px;
      top:-90px;
      width:220px;
      height:220px;
      border-radius:50%;
      background:rgba(124,58,237,.12);
    }
    .hero h1{
      margin:0;
      max-width:800px;
      color:var(--color-ink);
      font-size:clamp(34px,5vw,58px);
      line-height:1.08;
      letter-spacing:-.055em;
      font-weight:950;
      position:relative;
      z-index:1;
    }
    .hero-intro{
      margin:18px 0 0;
      max-width:780px;
      color:#475467;
      font-size:18px;
      line-height:1.82;
      position:relative;
      z-index:1;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
      position:relative;
      z-index:1;
    }
    .hero-panel{
      border-radius:var(--radius-xl);
      padding:22px;
      background:var(--color-dark);
      color:#fff;
      box-shadow:var(--shadow-lg);
      min-height:260px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:-80px -120px auto auto;
      width:260px;
      height:260px;
      background:radial-gradient(circle,rgba(20,184,166,.42),transparent 68%);
    }
    .panel-title{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      position:relative;
      z-index:1;
    }
    .panel-title h2{
      margin:0;
      color:#fff;
      font-size:20px;
      font-weight:900;
    }
    .progress-list{
      display:grid;
      gap:12px;
      position:relative;
      z-index:1;
      margin-top:18px;
    }
    .progress-item{
      padding:13px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
    }
    .progress-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      font-size:13px;
      color:#d9e2f1;
      margin-bottom:9px;
    }
    .progress-bar{
      height:8px;
      border-radius:999px;
      background:rgba(255,255,255,.13);
      overflow:hidden;
    }
    .progress-bar i{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--color-secondary),#a7f3d0);
    }
    .data-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:22px;
      position:relative;
      z-index:1;
    }
    .data-point{
      padding:14px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-sm);
    }
    .data-point b{
      display:block;
      color:var(--color-primary-strong);
      font-size:24px;
      line-height:1.1;
    }
    .data-point span{
      display:block;
      margin-top:5px;
      color:var(--color-muted);
      font-size:13px;
      font-weight:700;
    }

    .app-stage{
      display:grid;
      grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
      gap:28px;
      align-items:center;
    }
    .app-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-md);
      padding:26px;
      position:relative;
      overflow:hidden;
    }
    .app-card:before{
      content:"";
      position:absolute;
      left:-80px;
      bottom:-80px;
      width:220px;
      height:220px;
      border-radius:50%;
      background:rgba(20,184,166,.13);
    }
    .app-toolbar{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-bottom:18px;
      position:relative;
      z-index:1;
    }
    .app-toolbar-title{
      font-weight:900;
      color:var(--color-ink);
    }
    .app-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
      position:relative;
      z-index:1;
    }
    .app-tile{
      min-height:118px;
      border-radius:22px;
      padding:16px;
      background:#f8fafc;
      border:1px solid #eef2f7;
      transition:var(--transition);
    }
    .app-tile:hover{
      transform:translateY(-4px);
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .app-tile strong{
      display:block;
      color:var(--color-ink);
      font-size:18px;
      margin-bottom:7px;
    }
    .app-tile p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.65;
    }
    .group-box{
      background:linear-gradient(135deg,#fff,#fbfaff);
      border:1px solid rgba(124,58,237,.15);
      border-radius:var(--radius-xl);
      padding:26px;
    }
    .group-list{
      display:grid;
      gap:14px;
      margin-top:20px;
    }
    .group-item{
      display:grid;
      grid-template-columns:1fr auto;
      gap:15px;
      align-items:center;
      padding:16px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:0 10px 24px rgba(17,24,39,.05);
    }
    .group-item h3{
      margin:0 0 4px;
      color:var(--color-ink);
      font-size:17px;
      font-weight:900;
    }
    .group-item p{margin:0;color:var(--color-muted);font-size:14px}
    .mini-progress{
      width:96px;
      height:8px;
      border-radius:999px;
      background:#eef2f7;
      overflow:hidden;
      margin-bottom:8px;
    }
    .mini-progress i{
      display:block;
      height:100%;
      background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));
      border-radius:999px;
    }

    .service-layout{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:22px;
    }
    .feature-list{
      display:grid;
      gap:16px;
    }
    .feature-card{
      display:grid;
      grid-template-columns:52px 1fr;
      gap:16px;
      align-items:start;
      padding:20px;
      border:1px solid var(--color-border);
      border-radius:24px;
      background:#fff;
      box-shadow:0 10px 26px rgba(17,24,39,.05);
      transition:var(--transition);
    }
    .feature-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-md);
      border-color:rgba(124,58,237,.22);
    }
    .feature-icon{
      width:52px;
      height:52px;
      border-radius:18px;
      display:grid;
      place-items:center;
      color:#fff;
      font-size:22px;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
    }
    .feature-card h3{
      margin:0 0 7px;
      color:var(--color-ink);
      font-size:20px;
      font-weight:900;
    }
    .feature-card p{
      margin:0;
      color:var(--color-muted);
      font-size:15px;
    }
    .service-highlight{
      border-radius:var(--radius-xl);
      background:var(--color-dark);
      color:#eef2ff;
      padding:30px;
      overflow:hidden;
      position:relative;
      min-height:100%;
    }
    .service-highlight:after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-120px;
      width:280px;
      height:280px;
      background:radial-gradient(circle,rgba(124,58,237,.45),transparent 66%);
    }
    .service-highlight h3{
      margin:0;
      color:#fff;
      font-size:28px;
      font-weight:950;
      letter-spacing:-.03em;
      position:relative;
      z-index:1;
    }
    .service-highlight p{
      position:relative;
      z-index:1;
      color:#cbd5e1;
      margin:14px 0 22px;
    }
    .check-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
      position:relative;
      z-index:1;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.1);
      color:#e5e7eb;
      font-size:15px;
    }
    .check-list li:before{
      content:"✓";
      width:22px;
      height:22px;
      flex:0 0 22px;
      border-radius:999px;
      display:grid;
      place-items:center;
      color:#0f766e;
      background:#99f6e4;
      font-weight:900;
      font-size:13px;
      margin-top:2px;
    }

    .about-strip{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:16px;
      margin-top:26px;
    }
    .metric-card{
      padding:24px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-sm);
    }
    .metric-card b{
      color:var(--color-primary-strong);
      font-size:36px;
      line-height:1;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .metric-card span{
      display:block;
      margin-top:8px;
      color:var(--color-muted);
      font-weight:750;
    }
    .about-box{
      border-radius:var(--radius-xl);
      padding:32px;
      background:
        linear-gradient(135deg,rgba(20,184,166,.09),rgba(124,58,237,.09)),
        #fff;
      border:1px solid rgba(229,231,235,.9);
      box-shadow:var(--shadow-md);
    }
    .about-box p{
      margin:0;
      color:#475467;
      font-size:17px;
    }
    .safety-notes{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      margin-top:22px;
    }
    .safety-note{
      padding:16px;
      border-radius:20px;
      background:#fff;
      border:1px solid var(--color-border);
      color:#475467;
      font-weight:750;
      font-size:14px;
    }

    .scene-wrap{
      display:grid;
      grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
      gap:24px;
      align-items:stretch;
    }
    .steps-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      padding:28px;
      box-shadow:var(--shadow-md);
    }
    .step-list{
      counter-reset:step;
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:14px;
    }
    .step-list li{
      counter-increment:step;
      display:grid;
      grid-template-columns:46px 1fr;
      gap:14px;
      align-items:start;
      padding:16px;
      border:1px solid #eef2f7;
      border-radius:20px;
      background:#fbfdff;
    }
    .step-list li:before{
      content:counter(step);
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-primary-strong));
      font-weight:950;
    }
    .step-list h3{
      margin:0 0 4px;
      color:var(--color-ink);
      font-size:17px;
      font-weight:900;
    }
    .step-list p{margin:0;color:var(--color-muted);font-size:14px}
    .compare-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .compare-head{
      display:grid;
      grid-template-columns:1.1fr 1fr 1fr;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      color:#fff;
      font-weight:900;
    }
    .compare-row{
      display:grid;
      grid-template-columns:1.1fr 1fr 1fr;
      border-bottom:1px solid var(--color-border);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-head div,
    .compare-row div{
      padding:16px;
      min-height:58px;
      display:flex;
      align-items:center;
      font-size:14px;
    }
    .compare-row div:first-child{
      color:var(--color-ink);
      font-weight:850;
      background:#fbfdff;
    }
    .compare-row .good{color:#0f766e;font-weight:850}
    .compare-row .normal{color:#667085}

    .recommend-rail{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .recommend-card{
      min-height:190px;
      border-radius:var(--radius-lg);
      padding:20px;
      border:1px solid var(--color-border);
      background:#fff;
      box-shadow:var(--shadow-sm);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      transition:var(--transition);
    }
    .recommend-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-md);
      border-color:rgba(124,58,237,.25);
    }
    .recommend-card h3{
      margin:12px 0 8px;
      color:var(--color-ink);
      font-size:19px;
      line-height:1.35;
      font-weight:900;
    }
    .recommend-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
    }
    .card-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      margin-top:16px;
      color:var(--color-primary-strong);
      font-weight:900;
      font-size:14px;
    }
    .card-link:hover{gap:10px}

    .news-zone{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:24px;
      align-items:start;
    }
    .news-list,
    .calendar-card{
      border-radius:var(--radius-xl);
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .news-list-header,
    .calendar-header{
      padding:20px 22px;
      border-bottom:1px solid var(--color-border);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .news-list-header h3,
    .calendar-header h3{
      margin:0;
      color:var(--color-ink);
      font-size:20px;
      font-weight:950;
    }
    .news-items{
      list-style:none;
      padding:0;
      margin:0;
    }
    .news-item{
      border-bottom:1px solid #eef2f7;
    }
    .news-item:last-child{border-bottom:0}
    .news-item a{
      display:grid;
      grid-template-columns:112px 1fr auto;
      gap:16px;
      align-items:center;
      padding:18px 22px;
    }
    .news-item a:hover{
      background:#fbfaff;
      color:inherit;
    }
    .news-date{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:34px;
      border-radius:999px;
      background:#f1f5f9;
      color:#475467;
      font-size:13px;
      font-weight:850;
    }
    .news-title{
      color:var(--color-ink);
      font-weight:900;
      line-height:1.45;
    }
    .news-summary{
      display:block;
      color:var(--color-muted);
      font-size:14px;
      font-weight:500;
      margin-top:3px;
    }
    .news-arrow{
      color:var(--color-primary-strong);
      font-weight:950;
    }
    .calendar-list{
      list-style:none;
      padding:12px 18px 20px;
      margin:0;
      display:grid;
      gap:10px;
    }
    .calendar-list li{
      display:grid;
      grid-template-columns:64px 1fr;
      gap:12px;
      align-items:start;
      padding:12px;
      border-radius:18px;
      background:#f8fafc;
      border:1px solid #eef2f7;
    }
    .calendar-day{
      display:grid;
      place-items:center;
      height:48px;
      border-radius:16px;
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));
      font-weight:950;
      line-height:1.1;
    }
    .calendar-list strong{
      display:block;
      color:var(--color-ink);
      line-height:1.35;
      margin-bottom:2px;
    }
    .calendar-list span{
      display:block;
      color:var(--color-muted);
      font-size:13px;
      line-height:1.55;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:26px;
      align-items:start;
    }
    .faq-aside{
      position:sticky;
      top:calc(var(--nav-height) + 20px);
      border-radius:var(--radius-xl);
      padding:28px;
      background:linear-gradient(135deg,#181a2d,#282045);
      color:#fff;
      box-shadow:var(--shadow-lg);
    }
    .faq-aside h2{
      margin:0;
      color:#fff;
      font-size:30px;
      font-weight:950;
      letter-spacing:-.03em;
    }
    .faq-aside p{
      color:#cbd5e1;
      margin:12px 0 20px;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--color-border);
      border-radius:22px;
      background:#fff;
      box-shadow:0 10px 24px rgba(17,24,39,.05);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      border:0;
      background:#fff;
      color:var(--color-ink);
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      padding:20px 22px;
      font-weight:950;
      text-align:left;
    }
    .faq-question:hover{
      color:var(--color-primary-strong);
      background:#fbfaff;
    }
    .faq-question span:last-child{
      width:28px;
      height:28px;
      border-radius:999px;
      display:grid;
      place-items:center;
      background:var(--color-primary-soft);
      color:var(--color-primary-strong);
      flex:0 0 28px;
      transition:var(--transition);
    }
    .faq-answer{
      display:none;
      padding:0 22px 20px;
      color:var(--color-muted);
      font-size:15px;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer p{margin:0}

    .cta-section{
      padding:72px 0 88px;
    }
    .cta-box{
      display:grid;
      grid-template-columns:1fr auto;
      gap:24px;
      align-items:center;
      border-radius:var(--radius-xl);
      padding:34px;
      color:#fff;
      background:
        radial-gradient(circle at 90% 10%,rgba(20,184,166,.36),transparent 30%),
        linear-gradient(135deg,var(--color-primary-strong),#17152c);
      box-shadow:var(--shadow-lg);
      overflow:hidden;
    }
    .cta-box h2{
      margin:0;
      color:#fff;
      font-size:clamp(26px,3vw,40px);
      line-height:1.24;
      font-weight:950;
      letter-spacing:-.035em;
    }
    .cta-box p{
      margin:12px 0 0;
      max-width:760px;
      color:#dbeafe;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .cta-actions .btn-secondary{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.2);
    }
    .cta-actions .btn-secondary:hover{
      background:rgba(255,255,255,.2);
      color:#fff;
    }

    .site-footer{
      background:#0f1220;
      color:#cbd5e1;
      padding:54px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:30px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:11px;
      color:#fff;
      font-weight:950;
      font-size:20px;
      margin-bottom:14px;
    }
    .footer-brand .brand-icon{
      width:40px;
      height:40px;
      box-shadow:none;
    }
    .footer-desc{
      margin:0;
      max-width:520px;
      color:#aab4c3;
      font-size:15px;
    }
    .footer-col h3{
      margin:0 0 13px;
      color:#fff;
      font-size:16px;
      font-weight:950;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:#aab4c3;
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      padding-left:4px;
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      color:#8c96a8;
      font-size:13px;
    }
    .age-tip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:999px;
      padding:8px 12px;
      background:rgba(255,255,255,.08);
      color:#dbeafe;
      border:1px solid rgba(255,255,255,.1);
      font-weight:800;
      font-size:13px;
      margin-top:18px;
    }

    @media (max-width:1024px){
      :root{--nav-height:68px}
      .search-box{width:210px}
      .hero-banner,
      .app-stage,
      .service-layout,
      .scene-wrap,
      .faq-wrap,
      .news-zone{
        grid-template-columns:1fr;
      }
      .hero-panel{min-height:auto}
      .recommend-rail{grid-template-columns:repeat(2,1fr)}
      .safety-notes{grid-template-columns:repeat(2,1fr)}
      .faq-aside{position:relative;top:auto}
      .cta-box{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }

    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .section{padding:62px 0}
      .section-head{
        display:block;
        margin-bottom:26px;
      }
      .menu-toggle{display:flex}
      .nav-wrap{
        flex-wrap:wrap;
        padding:12px 0;
      }
      .nav-main,
      .nav-actions{
        display:none;
        width:100%;
        margin:0;
      }
      .site-header.is-open .nav-main,
      .site-header.is-open .nav-actions{
        display:flex;
      }
      .site-header.is-open .nav-main{
        justify-content:flex-start;
        padding-top:10px;
      }
      .site-header.is-open .nav-actions{
        flex-direction:column;
        align-items:stretch;
        padding-bottom:8px;
      }
      .search-box{width:100%}
      .nav-small-btn,
      .nav-highlight{width:100%;text-align:center;justify-content:center}
      .hero{padding-top:18px}
      .hero-topbar{
        align-items:flex-start;
        flex-direction:column;
      }
      .hero-copy{padding:26px;min-height:auto}
      .data-points{grid-template-columns:1fr}
      .app-grid{grid-template-columns:1fr}
      .about-strip{grid-template-columns:1fr}
      .compare-head,
      .compare-row{
        grid-template-columns:1fr;
      }
      .compare-head div:nth-child(2),
      .compare-head div:nth-child(3){display:none}
      .compare-row div{padding:12px 16px}
      .compare-row div:first-child{background:#f8fafc}
      .news-item a{
        grid-template-columns:1fr;
        gap:8px;
      }
      .news-arrow{display:none}
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width:520px){
      .brand-text{font-size:16px}
      .brand-sub{display:none}
      .hero h1{font-size:34px}
      .hero-intro{font-size:16px}
      .hero-actions .btn{width:100%}
      .group-item{grid-template-columns:1fr}
      .recommend-rail{grid-template-columns:1fr}
      .safety-notes{grid-template-columns:1fr}
      .cta-box{padding:26px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }