/* roulang page: index */
:root{
      --bg:#f7f8f5;
      --bg-alt:#eaf2ed;
      --card:#ffffff;
      --text:#252a2e;
      --muted:#6d756f;
      --ink:#111318;
      --deep:#15181d;
      --deep-2:#1c2026;
      --border:#dde4de;
      --accent:#22d6a3;
      --accent-2:#f2b84b;
      --accent-soft:rgba(34,214,163,.12);
      --warm-soft:rgba(242,184,75,.16);
      --shadow:0 16px 40px rgba(17,19,24,.08);
      --shadow-2:0 22px 60px rgba(17,19,24,.14);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1200px;
      --space-1:6px;
      --space-2:12px;
      --space-3:16px;
      --space-4:20px;
      --space-5:24px;
      --space-6:32px;
      --space-7:40px;
      --space-8:56px;
      --space-9:72px;
      --space-10:96px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(34,214,163,.08), transparent 20%),
        radial-gradient(circle at 88% 0%, rgba(242,184,75,.08), transparent 20%),
        linear-gradient(180deg, #fbfcfa 0%, var(--bg) 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(34,214,163,.22);color:var(--ink)}
    .skip-link{
      position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden;
    }
    .skip-link:focus{
      left:16px;top:16px;width:auto;height:auto;z-index:9999;
      background:#fff;color:var(--ink);padding:12px 16px;border-radius:999px;
      box-shadow:var(--shadow);
    }
    .container{
      width:min(100% - 32px,var(--container));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;top:0;z-index:1000;
      background:rgba(247,248,245,.78);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(221,228,222,.7);
      transition:box-shadow .28s var(--ease), background .28s var(--ease), border-color .28s var(--ease);
    }
    .site-header.is-scrolled{
      background:rgba(247,248,245,.92);
      box-shadow:0 10px 30px rgba(17,19,24,.06);
    }
    .header-inner{
      min-height:80px;
      display:flex;
      align-items:center;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.42), transparent 35%),
        linear-gradient(135deg, #0e1014 0%, #232931 100%);
      position:relative;
      box-shadow:0 10px 22px rgba(17,19,24,.18);
      flex:0 0 auto;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(34,214,163,.14);
    }
    .brand-mark::before{width:10px;height:10px;left:10px;top:16px}
    .brand-mark::after{width:10px;height:10px;right:10px;top:10px;background:var(--accent-2);box-shadow:0 0 0 6px rgba(242,184,75,.14)}
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.2;
    }
    .brand-text strong{
      font-size:18px;
      letter-spacing:.2px;
      color:var(--ink);
    }
    .brand-text span{
      font-size:12px;
      color:var(--muted);
      margin-top:4px;
    }
    .site-nav{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:8px;
    }
    .site-nav a{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      transition:background .24s var(--ease), color .24s var(--ease), transform .24s var(--ease);
      outline:none;
    }
    .site-nav a:hover,
    .site-nav a:focus-visible,
    .site-nav a.active{
      color:var(--ink);
      background:rgba(34,214,163,.12);
    }
    .site-nav a::after{
      content:"";
      position:absolute;
      left:14px;right:14px;bottom:7px;
      height:2px;border-radius:999px;
      background:linear-gradient(90deg, var(--accent), rgba(34,214,163,.15));
      transform:scaleX(0);
      transform-origin:left;
      transition:transform .24s var(--ease);
      opacity:.9;
    }
    .site-nav a:hover::after,
    .site-nav a:focus-visible::after,
    .site-nav a.active::after{transform:scaleX(1)}
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:12px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      border:1px solid transparent;
      cursor:pointer;
      transition:transform .24s var(--ease), box-shadow .24s var(--ease), background .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease);
      white-space:nowrap;
      user-select:none;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:focus-visible{
      outline:3px solid rgba(34,214,163,.24);
      outline-offset:2px;
    }
    .btn-primary{
      background:linear-gradient(135deg, #28e0ad 0%, #18c292 100%);
      color:#0d1210;
      box-shadow:0 14px 26px rgba(34,214,163,.22);
      font-weight:700;
    }
    .btn-primary:hover{
      box-shadow:0 18px 34px rgba(34,214,163,.28);
    }
    .btn-secondary{
      border-color:rgba(17,19,24,.12);
      background:rgba(255,255,255,.72);
      color:var(--ink);
    }
    .btn-secondary:hover{
      border-color:rgba(34,214,163,.42);
      background:#eef6f2;
    }
    .btn-dark{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.18);
      color:#f7faf6;
    }
    .btn-dark:hover{
      background:rgba(255,255,255,.12);
      border-color:rgba(34,214,163,.36);
    }
    .nav-toggle{
      display:none;
      align-items:center;
      justify-content:center;
      width:46px;height:46px;
      border-radius:14px;
      border:1px solid rgba(17,19,24,.12);
      background:rgba(255,255,255,.8);
      color:var(--ink);
      cursor:pointer;
      margin-left:auto;
      transition:transform .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
    }
    .nav-toggle:hover{transform:translateY(-1px);border-color:rgba(34,214,163,.4);background:#eef6f2}
    .nav-toggle:focus-visible{outline:3px solid rgba(34,214,163,.24);outline-offset:2px}
    .icon-lines{
      width:18px;height:12px;position:relative;display:block;
    }
    .icon-lines::before,.icon-lines::after,.icon-lines span{
      content:"";position:absolute;left:0;right:0;height:2px;border-radius:999px;background:currentColor;
    }
    .icon-lines::before{top:0}
    .icon-lines span{top:5px}
    .icon-lines::after{bottom:0}
    .mobile-menu{
      display:none;
      position:fixed;
      inset:80px 0 auto 0;
      background:rgba(247,248,245,.96);
      border-bottom:1px solid rgba(221,228,222,.8);
      box-shadow:0 20px 40px rgba(17,19,24,.08);
      z-index:999;
      padding:18px 0 22px;
    }
    .mobile-menu.open{display:block}
    .mobile-menu .menu-links{
      display:grid;
      gap:10px;
    }
    .mobile-menu a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 16px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--border);
      color:var(--ink);
    }
    .mobile-menu .menu-actions{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
      margin-top:14px;
    }

    main{display:block}
    .hero{
      position:relative;
      color:#f7faf6;
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(17,19,24,.84), rgba(17,19,24,.92)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:36px 36px;
      opacity:.22;
      pointer-events:none;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.78), transparent 92%);
    }
    .hero::after{
      content:"";
      position:absolute;
      width:360px;height:360px;right:-80px;top:-120px;
      background:radial-gradient(circle, rgba(34,214,163,.2), transparent 70%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:1;
      padding:78px 0 34px;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:34px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#e6ece8;
      font-size:13px;
      letter-spacing:.2px;
    }
    .eyebrow .dot{
      width:8px;height:8px;border-radius:999px;background:var(--accent);
      box-shadow:0 0 0 6px rgba(34,214,163,.12);
    }
    .hero h1{
      margin:18px 0 16px;
      font-size:clamp(32px,4.5vw,54px);
      line-height:1.15;
      letter-spacing:-.02em;
      max-width:12ch;
    }
    .hero p{
      margin:0;
      max-width:62ch;
      font-size:17px;
      line-height:1.9;
      color:#cfd7d2;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      color:#e9f1ec;
      font-size:13px;
    }
    .tag b{
      color:var(--accent);
      font-weight:700;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:12px;
      margin-top:28px;
    }
    .metric{
      padding:15px 16px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.11);
      backdrop-filter:blur(6px);
    }
    .metric strong{
      display:block;
      font-size:20px;
      color:#fff;
      line-height:1.1;
      margin-bottom:4px;
    }
    .metric span{
      font-size:13px;color:#c5cec8;
    }
    .hero-panel{
      padding:22px;
      border-radius:28px;
      background:linear-gradient(180deg, rgba(24,28,33,.92), rgba(16,19,22,.92));
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-2);
      position:relative;
      overflow:hidden;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 70% 0%, rgba(34,214,163,.12), transparent 30%);
      pointer-events:none;
    }
    .panel-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .panel-title{
      font-size:16px;
      font-weight:700;
      color:#f7faf6;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .status-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 11px;
      border-radius:999px;
      background:rgba(34,214,163,.1);
      border:1px solid rgba(34,214,163,.2);
      color:#bff5e2;
      font-size:12px;
      white-space:nowrap;
    }
    .status-chip .blink{
      width:8px;height:8px;border-radius:999px;background:var(--accent);
      box-shadow:0 0 0 6px rgba(34,214,163,.12);
    }
    .panel-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .panel-item{
      display:flex;
      gap:14px;
      padding:14px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .panel-index{
      flex:0 0 auto;
      width:34px;height:34px;
      border-radius:12px;
      background:rgba(34,214,163,.14);
      color:#c8fff0;
      display:grid;
      place-items:center;
      font-weight:700;
      font-size:13px;
    }
    .panel-item strong{
      display:block;
      color:#f7faf6;
      font-size:14px;
      margin-bottom:4px;
    }
    .panel-item p{
      margin:0;
      color:#b9c3bc;
      font-size:13px;
      line-height:1.7;
    }
    .panel-foot{
      margin-top:16px;
      padding-top:14px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:#d8e0db;
      font-size:13px;
    }
    .trust-row{
      position:relative;
      margin-top:18px;
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:12px;
      padding:14px;
      border-radius:24px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(8px);
    }
    .trust-item{
      display:flex;
      align-items:center;
      gap:10px;
      color:#eef5f0;
      font-size:13px;
      padding:4px 6px;
    }
    .trust-icon{
      width:28px;height:28px;border-radius:10px;
      background:rgba(34,214,163,.12);
      border:1px solid rgba(34,214,163,.18);
      display:grid;
      place-items:center;
      color:var(--accent);
      flex:0 0 auto;
    }

    .section{
      padding:var(--space-10) 0;
    }
    .section.tight{padding:var(--space-9) 0}
    .section.alt{
      background:linear-gradient(180deg, rgba(234,242,237,.75), rgba(247,248,245,.92));
      border-top:1px solid rgba(221,228,222,.55);
      border-bottom:1px solid rgba(221,228,222,.55);
    }
    .section.dark{
      background:
        linear-gradient(180deg, rgba(17,19,24,.96), rgba(24,28,33,.98));
      color:#f7faf6;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:20px;
      align-items:flex-end;
      margin-bottom:28px;
    }
    .section-head.center{
      flex-direction:column;
      align-items:center;
      text-align:center;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:12px;
      color:var(--accent);
      font-weight:700;
      font-size:13px;
      letter-spacing:.18em;
      text-transform:uppercase;
    }
    .section-kicker::before{
      content:"";
      width:34px;height:2px;border-radius:999px;background:linear-gradient(90deg, var(--accent), transparent);
      display:inline-block;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(28px,3.2vw,38px);
      line-height:1.2;
      letter-spacing:-.02em;
      color:inherit;
    }
    .section-head p{
      margin:12px 0 0;
      max-width:58ch;
      color:var(--muted);
      font-size:16px;
      line-height:1.9;
    }
    .section.dark .section-head p,
    .section.dark .muted,
    .section.dark .card p,
    .section.dark .faq-item summary,
    .section.dark .faq-item .faq-answer,
    .section.dark .step p,
    .section.dark .info-list li{
      color:#c5cec8;
    }

    .grid-4{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
    }
    .grid-2{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .grid-3{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:16px;
    }
    .card{
      background:var(--card);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
      position:relative;
    }
    .card:hover{
      transform:translateY(-4px);
      border-color:rgba(34,214,163,.42);
      box-shadow:0 20px 48px rgba(17,19,24,.11);
    }
    .card-media{
      position:relative;
      overflow:hidden;
      aspect-ratio:16/10;
      background:#dfe6e0;
    }
    .card-media img{
      width:100%;height:100%;object-fit:cover;
      transition:transform .6s var(--ease);
    }
    .card:hover .card-media img{transform:scale(1.03)}
    .card-body{
      padding:22px;
    }
    .card-title{
      margin:0 0 10px;
      font-size:20px;
      line-height:1.35;
      color:var(--ink);
      letter-spacing:-.01em;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.82;
    }
    .card-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-top:18px;
    }
    .card-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--ink);
      font-weight:700;
      font-size:14px;
    }
    .card-link .arrow{
      transition:transform .24s var(--ease);
    }
    .card:hover .card-link .arrow{transform:translateX(4px)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:28px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(34,214,163,.12);
      color:#0f6e57;
      font-size:12px;
      font-weight:700;
      white-space:nowrap;
    }
    .badge.warm{
      background:rgba(242,184,75,.14);
      color:#8c6510;
    }
    .label-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:14px;
    }

    .intro-layout{
      display:grid;
      grid-template-columns:1.04fr .96fr;
      gap:18px;
      align-items:stretch;
    }
    .visual-card{
      min-height:100%;
      border-radius:28px;
      overflow:hidden;
      position:relative;
      box-shadow:var(--shadow);
      border:1px solid var(--border);
      background:#dae4dc;
    }
    .visual-card img{
      width:100%;height:100%;
      object-fit:cover;
      min-height:100%;
    }
    .visual-overlay{
      position:absolute;inset:0;
      background:linear-gradient(180deg, rgba(17,19,24,.08), rgba(17,19,24,.44));
    }
    .visual-note{
      position:absolute;
      left:18px;bottom:18px;right:18px;
      padding:16px 18px;
      border-radius:20px;
      background:rgba(17,19,24,.68);
      border:1px solid rgba(255,255,255,.1);
      color:#f7faf6;
      backdrop-filter:blur(10px);
    }
    .visual-note strong{
      display:block;
      margin-bottom:4px;
      font-size:16px;
    }
    .visual-note span{
      color:#c5cec8;
      font-size:13px;
      line-height:1.7;
    }
    .info-stack{
      display:grid;
      gap:16px;
    }
    .info-card{
      padding:24px;
      border-radius:24px;
      background:linear-gradient(180deg, #fff, #fbfcfa);
      border:1px solid var(--border);
      box-shadow:var(--shadow);
    }
    .info-card h3{
      margin:0 0 12px;
      font-size:22px;
      line-height:1.35;
      color:var(--ink);
    }
    .info-card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.86;
    }
    .info-list{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .info-list li{
      position:relative;
      padding-left:22px;
      color:var(--text);
      font-size:15px;
      line-height:1.8;
    }
    .info-list li::before{
      content:"";
      position:absolute;
      left:0;top:11px;
      width:10px;height:10px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(34,214,163,.12);
    }

    .step-track{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
      position:relative;
    }
    .step{
      padding:22px;
      border-radius:24px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      min-height:240px;
      position:relative;
    }
    .step-number{
      width:42px;height:42px;border-radius:14px;
      background:rgba(34,214,163,.14);
      border:1px solid rgba(34,214,163,.2);
      color:#c7ffee;
      display:grid;
      place-items:center;
      font-weight:800;
      margin-bottom:18px;
    }
    .step h3{
      margin:0 0 10px;
      color:#f7faf6;
      font-size:20px;
      line-height:1.35;
    }
    .step p{
      margin:0;
      color:#c5cec8;
      font-size:15px;
      line-height:1.85;
    }

    .news-layout{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:18px;
      align-items:start;
    }
    .spotlight{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:0;
      min-height:100%;
    }
    .spotlight .card-media{aspect-ratio:auto;min-height:100%}
    .spotlight .card-body{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .mini-news{
      display:grid;
      gap:16px;
    }
    .mini-news .mini-card{
      display:grid;
      grid-template-columns:124px 1fr;
      gap:14px;
      align-items:center;
      padding:12px;
    }
    .mini-card .thumb{
      aspect-ratio:1/1;
      border-radius:16px;
      overflow:hidden;
      background:#dfe6e0;
    }
    .mini-card .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .mini-card h3{
      margin:0 0 8px;
      font-size:18px;
      line-height:1.4;
      color:var(--ink);
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:10px;
      font-size:12px;
      color:var(--muted);
    }
    .meta-row .date{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      background:#f1f5f2;
      border:1px solid var(--border);
      color:var(--muted);
    }

    .mobile-showcase{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:18px;
      align-items:center;
    }
    .phone-shell{
      width:min(100%,360px);
      margin:0 auto;
      padding:14px;
      border-radius:34px;
      background:linear-gradient(180deg, #0f1318, #22282f);
      box-shadow:var(--shadow-2);
      border:1px solid rgba(255,255,255,.08);
    }
    .phone-screen{
      border-radius:24px;
      overflow:hidden;
      min-height:620px;
      background:
        linear-gradient(180deg, rgba(17,19,24,.58), rgba(17,19,24,.84)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      color:#f7faf6;
      padding:16px;
      display:flex;
      flex-direction:column;
      gap:12px;
      position:relative;
    }
    .phone-status{
      display:flex;
      align-items:center;
      justify-content:space-between;
      font-size:12px;
      color:#d6ded8;
      margin-bottom:2px;
    }
    .phone-card{
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      border-radius:18px;
      padding:14px;
      backdrop-filter:blur(8px);
    }
    .phone-card strong{
      display:block;
      margin-bottom:6px;
      font-size:14px;
    }
    .phone-card p{
      margin:0;
      color:#c8d0cb;
      font-size:13px;
      line-height:1.72;
    }
    .phone-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
    }
    .phone-mini{
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      min-height:92px;
    }
    .phone-mini span{
      display:block;
      font-size:12px;
      color:#b7c0ba;
      margin-bottom:6px;
    }
    .phone-mini strong{
      font-size:14px;
      line-height:1.45;
    }
    .phone-bar{
      margin-top:auto;
      background:rgba(255,255,255,.08);
      border-radius:18px;
      padding:12px;
      border:1px solid rgba(255,255,255,.1);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      font-size:13px;
    }
    .device-copy{
      padding:18px 8px 18px 14px;
    }
    .device-copy h3{
      margin:0 0 14px;
      font-size:24px;
      color:var(--ink);
      line-height:1.35;
    }
    .device-copy p{
      margin:0 0 16px;
      color:var(--muted);
      font-size:15px;
      line-height:1.9;
    }
    .bullet-list{
      display:grid;
      gap:10px;
      margin:0 0 20px;
      padding:0;
      list-style:none;
    }
    .bullet-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      font-size:15px;
      color:var(--text);
      line-height:1.8;
    }
    .bullet-list li::before{
      content:"";
      width:10px;height:10px;border-radius:999px;
      margin-top:9px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(34,214,163,.12);
      flex:0 0 auto;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .faq-item{
      border:1px solid var(--border);
      border-radius:20px;
      background:linear-gradient(180deg,#fff, #fbfcfa);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 18px 18px 56px;
      position:relative;
      font-size:16px;
      line-height:1.6;
      color:var(--ink);
      font-weight:700;
      outline:none;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::before{
      content:attr(data-no);
      position:absolute;
      left:18px;top:18px;
      width:28px;height:28px;border-radius:999px;
      display:grid;
      place-items:center;
      background:rgba(34,214,163,.12);
      color:#0f6e57;
      font-size:12px;
      font-weight:800;
      border:1px solid rgba(34,214,163,.2);
    }
    .faq-item summary::after{
      content:"+";
      position:absolute;
      right:18px;top:16px;
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      color:var(--muted);
      background:#f1f5f2;
      transition:transform .24s var(--ease), background .24s var(--ease);
    }
    .faq-item[open] summary::after{
      content:"–";
      background:rgba(34,214,163,.12);
      color:#0f6e57;
    }
    .faq-item[open] summary{
      background:rgba(34,214,163,.06);
      border-bottom:1px solid rgba(34,214,163,.14);
    }
    .faq-answer{
      padding:0 18px 18px 56px;
      color:var(--muted);
      font-size:15px;
      line-height:1.88;
    }

    .contact-layout{
      display:grid;
      grid-template-columns:1fr .92fr;
      gap:18px;
    }
    .form-card,
    .tip-card{
      border-radius:28px;
      border:1px solid var(--border);
      background:linear-gradient(180deg,#fff,#fbfcfa);
      box-shadow:var(--shadow);
      padding:24px;
    }
    .field-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      margin-bottom:14px;
    }
    .field{
      display:grid;
      gap:8px;
    }
    .field label{
      font-size:14px;
      color:var(--text);
      font-weight:700;
    }
    .field input,
    .field select,
    .field textarea{
      width:100%;
      min-height:46px;
      border-radius:14px;
      border:1px solid var(--border);
      background:#fff;
      color:var(--ink);
      padding:12px 14px;
      transition:border-color .24s var(--ease), box-shadow .24s var(--ease), background .24s var(--ease);
      outline:none;
    }
    .field textarea{min-height:128px;resize:vertical}
    .field input:focus,
    .field select:focus,
    .field textarea:focus{
      border-color:rgba(34,214,163,.5);
      box-shadow:0 0 0 4px rgba(34,214,163,.12);
    }
    .field small{
      color:var(--muted);
      font-size:12px;
      line-height:1.7;
    }
    .form-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:18px;
      align-items:center;
    }
    .form-note{
      font-size:13px;
      color:var(--muted);
    }
    .tip-card{
      background:
        linear-gradient(180deg, rgba(17,19,24,.98), rgba(24,28,33,.98));
      color:#f7faf6;
      border-color:rgba(255,255,255,.08);
      position:relative;
      overflow:hidden;
    }
    .tip-card::before{
      content:"";
      position:absolute;
      inset:auto -60px -80px auto;
      width:220px;height:220px;border-radius:50%;
      background:radial-gradient(circle, rgba(34,214,163,.2), transparent 68%);
      pointer-events:none;
    }
    .tip-card h3{
      margin:0 0 12px;
      font-size:24px;
    }
    .tip-card p{
      margin:0 0 16px;
      color:#c5cec8;
      font-size:15px;
      line-height:1.9;
    }
    .tip-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .tip-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#e8efe9;
      font-size:14px;
      line-height:1.8;
    }
    .tip-list li::before{
      content:"";
      width:10px;height:10px;border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(34,214,163,.12);
      margin-top:8px;
      flex:0 0 auto;
    }

    .cta-banner{
      background:
        linear-gradient(135deg, rgba(17,19,24,.98), rgba(26,30,36,.98)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:#f7faf6;
      padding:34px 0;
      border-top:1px solid rgba(255,255,255,.06);
    }
    .cta-inner{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:24px;
      padding:24px 28px;
      border-radius:30px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow-2);
    }
    .cta-copy h2{
      margin:0 0 10px;
      font-size:clamp(26px,3vw,36px);
      line-height:1.2;
    }
    .cta-copy p{
      margin:0;
      max-width:54ch;
      color:#c5cec8;
      line-height:1.9;
      font-size:15px;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      flex:0 0 auto;
    }

    .site-footer{
      background:linear-gradient(180deg,#12151a,#171b20);
      color:#f7faf6;
      padding:54px 0 28px;
    }
    .footer-top{
      display:grid;
      grid-template-columns:1.3fr .8fr .9fr .9fr;
      gap:22px;
      padding-bottom:28px;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .footer-brand .brand-text strong,
    .footer-brand .brand-text span{color:#f7faf6}
    .footer-brand .brand-text span{color:#b9c3bc}
    .footer-brand p{
      margin:18px 0 0;
      color:#c5cec8;
      font-size:14px;
      line-height:1.9;
      max-width:36ch;
    }
    .footer-group h3{
      margin:0 0 14px;
      font-size:16px;
      color:#fff;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#c5cec8;
      font-size:14px;
      transition:color .24s var(--ease), transform .24s var(--ease);
    }
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .footer-note{
      color:#b9c3bc;
      font-size:13px;
      line-height:1.9;
      display:grid;
      gap:10px;
    }
    .footer-bottom{
      padding-top:18px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      align-items:center;
      color:#9eaaa3;
      font-size:13px;
      line-height:1.8;
      flex-wrap:wrap;
    }
    .footer-bottom a{color:#d7efe6}
    .section-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(34,214,163,.26), transparent);
      margin-top:26px;
    }

    .backtop{
      position:fixed;
      right:18px;bottom:18px;
      width:48px;height:48px;
      border-radius:16px;
      border:1px solid rgba(34,214,163,.24);
      background:rgba(255,255,255,.86);
      color:var(--ink);
      box-shadow:var(--shadow);
      display:grid;
      place-items:center;
      opacity:0;
      pointer-events:none;
      transform:translateY(8px);
      transition:opacity .24s var(--ease), transform .24s var(--ease), background .24s var(--ease);
      z-index:998;
    }
    .backtop.visible{
      opacity:1;
      pointer-events:auto;
      transform:translateY(0);
    }
    .backtop:hover{background:#eef6f2}
    .backtop:focus-visible{outline:3px solid rgba(34,214,163,.24);outline-offset:2px}

    @media (max-width: 1199px){
      .hero-inner,
      .intro-layout,
      .news-layout,
      .mobile-showcase,
      .contact-layout,
      .footer-top{
        grid-template-columns:1fr;
      }
      .hero h1{max-width:15ch}
      .hero-panel{max-width:720px}
      .step-track{grid-template-columns:repeat(2,minmax(0,1fr))}
      .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
      .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
      .faq-wrap{grid-template-columns:1fr}
      .cta-inner{flex-direction:column;align-items:flex-start}
      .site-nav{display:none}
      .header-actions{margin-left:auto}
      .nav-toggle{display:inline-flex}
      .trust-row{grid-template-columns:repeat(2,minmax(0,1fr))}
      .spotlight{grid-template-columns:1fr}
      .mini-news .mini-card{grid-template-columns:112px 1fr}
    }
    @media (max-width: 767px){
      .container{width:min(100% - 22px,var(--container))}
      .header-inner{min-height:72px}
      .brand-text span{display:none}
      .header-actions{display:none}
      .hero-inner{padding:54px 0 28px}
      .hero h1{font-size:clamp(30px,7vw,38px)}
      .hero p{font-size:15px}
      .hero-metrics,
      .grid-4,
      .grid-3,
      .grid-2,
      .step-track,
      .trust-row{
        grid-template-columns:1fr;
      }
      .hero-actions,.cta-actions{display:grid;width:100%}
      .hero-actions .btn,.cta-actions .btn,.form-actions .btn{width:100%}
      .section{padding:64px 0}
      .section.tight{padding:54px 0}
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .section-head.center{align-items:flex-start;text-align:left}
      .card-body,.info-card,.form-card,.tip-card,.step{padding:18px}
      .visual-note{left:12px;right:12px;bottom:12px;padding:14px}
      .phone-shell{width:100%}
      .phone-screen{min-height:560px}
      .field-row{grid-template-columns:1fr}
      .mini-news .mini-card{grid-template-columns:1fr}
      .cta-inner{padding:20px}
      .footer-bottom{flex-direction:column;align-items:flex-start}
      .faq-item summary{padding-right:52px}
      .faq-answer{padding-left:18px}
      .faq-item summary::before{left:14px}
      .faq-item summary{padding-left:50px}
    }

/* roulang page: category1 */
:root {
      --obsidian: #111318;
      --obsidian-soft: #1A1E22;
      --mint: #22D6A3;
      --mint-strong: #18BE8F;
      --amber: #F2B84B;
      --mist: #F7F8F5;
      --sage: #EAF2ED;
      --text: #252A2E;
      --muted: #6D756F;
      --line: #DDE4DE;
      --white: #FFFFFF;
      --footer-text: #F7FAF6;
      --footer-muted: #B9C3BC;
      --shadow: 0 18px 48px rgba(17, 19, 24, .10);
      --shadow-soft: 0 12px 34px rgba(17, 19, 24, .08);
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 26px;
      --radius-xl: 34px;
      --container: 1200px;
      --header-h: 78px;
      --ease: all .24s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background: var(--mist);
      line-height: 1.75;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
      background: none;
    }

    input,
    textarea,
    select {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: var(--white);
      color: var(--text);
      padding: 13px 15px;
      outline: none;
      transition: var(--ease);
    }

    textarea {
      resize: vertical;
      min-height: 112px;
    }

    input:focus,
    textarea:focus,
    select:focus,
    button:focus-visible,
    a:focus-visible {
      outline: 3px solid rgba(34, 214, 163, .28);
      outline-offset: 3px;
      border-color: var(--mint);
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(247, 248, 245, .92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(221, 228, 222, .86);
    }

    .header-inner {
      height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      background:
        radial-gradient(circle at 70% 25%, rgba(242, 184, 75, .95) 0 13%, transparent 14%),
        linear-gradient(135deg, var(--obsidian), #27322D 58%, var(--mint));
      box-shadow: 0 10px 24px rgba(34, 214, 163, .22);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 14px;
      height: 14px;
      border: 2px solid rgba(255, 255, 255, .82);
      border-radius: 50%;
      left: 9px;
      bottom: 9px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
      min-width: 0;
    }

    .brand-text strong {
      font-size: 17px;
      font-weight: 800;
      color: var(--obsidian);
      white-space: nowrap;
    }

    .brand-text span {
      font-size: 12px;
      color: var(--muted);
      margin-top: 2px;
      white-space: nowrap;
    }

    .site-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255, 255, 255, .72);
      box-shadow: 0 8px 24px rgba(17, 19, 24, .04);
    }

    .site-nav a {
      padding: 9px 17px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      color: var(--muted);
      white-space: nowrap;
    }

    .site-nav a:hover {
      color: var(--obsidian);
      background: var(--sage);
    }

    .site-nav a.active {
      color: var(--obsidian);
      background: var(--mint);
      box-shadow: 0 8px 20px rgba(34, 214, 163, .28);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 12px 20px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 800;
      line-height: 1;
      transition: var(--ease);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      color: var(--obsidian);
      background: var(--mint);
      box-shadow: 0 12px 26px rgba(34, 214, 163, .24);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: #31E3B1;
      box-shadow: 0 16px 34px rgba(34, 214, 163, .32);
    }

    .btn-secondary {
      color: var(--obsidian);
      background: rgba(255, 255, 255, .78);
      border-color: var(--line);
    }

    .btn-secondary:hover {
      background: var(--sage);
      border-color: rgba(34, 214, 163, .42);
      transform: translateY(-2px);
    }

    .btn-dark {
      color: var(--footer-text);
      background: var(--obsidian);
      border-color: rgba(255, 255, 255, .08);
    }

    .btn-dark:hover {
      color: var(--obsidian);
      background: var(--mint);
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      background: var(--white);
      border: 1px solid var(--line);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle::before,
    .menu-toggle::after {
      content: "";
      width: 20px;
      height: 2px;
      background: var(--obsidian);
      border-radius: 99px;
      display: block;
      transition: var(--ease);
    }

    .menu-toggle {
      flex-direction: column;
      gap: 5px;
    }

    .mobile-panel {
      display: none;
      border-top: 1px solid var(--line);
      background: rgba(247, 248, 245, .98);
    }

    .mobile-panel.open {
      display: block;
    }

    .mobile-panel .site-nav {
      margin: 14px 0;
      flex-direction: column;
      align-items: stretch;
      border-radius: 22px;
      padding: 10px;
    }

    .mobile-panel .site-nav a {
      text-align: center;
      padding: 13px 16px;
    }

    .mobile-actions {
      display: grid;
      grid-template-columns: 1fr;
      gap: 10px;
      padding-bottom: 16px;
    }

    .hero {
      position: relative;
      padding: 72px 0 64px;
      overflow: hidden;
      background:
        linear-gradient(112deg, rgba(17, 19, 24, .94), rgba(17, 19, 24, .78)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      color: var(--footer-text);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), rgba(0,0,0,.16));
      pointer-events: none;
    }

    .hero::after {
      content: "";
      position: absolute;
      width: 460px;
      height: 460px;
      right: -140px;
      top: -120px;
      background: radial-gradient(circle, rgba(34, 214, 163, .33), transparent 64%);
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
      align-items: center;
      gap: 46px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 9px;
      color: var(--footer-muted);
      font-size: 14px;
      margin-bottom: 18px;
    }

    .breadcrumb a {
      color: var(--footer-text);
      font-weight: 700;
    }

    .breadcrumb a:hover {
      color: var(--mint);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 13px;
      border-radius: 999px;
      background: rgba(34, 214, 163, .12);
      border: 1px solid rgba(34, 214, 163, .32);
      color: var(--mint);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 0 6px rgba(34, 214, 163, .14);
    }

    h1 {
      font-size: clamp(32px, 4.4vw, 52px);
      line-height: 1.15;
      letter-spacing: -.02em;
      font-weight: 850;
      margin-bottom: 20px;
    }

    .hero-lead {
      max-width: 760px;
      color: #DCE5DF;
      font-size: 18px;
      line-height: 1.82;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 26px;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 720px;
    }

    .point {
      padding: 14px 15px;
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 18px;
      background: rgba(255, 255, 255, .06);
    }

    .point strong {
      display: block;
      color: var(--footer-text);
      font-size: 15px;
      margin-bottom: 2px;
    }

    .point span {
      color: var(--footer-muted);
      font-size: 13px;
    }

    .hero-board {
      background: rgba(247, 250, 246, .96);
      color: var(--text);
      border-radius: var(--radius-xl);
      padding: 18px;
      box-shadow: 0 30px 80px rgba(0, 0, 0, .28);
      border: 1px solid rgba(255, 255, 255, .3);
      transform: rotate(1deg);
    }

    .board-image {
      position: relative;
      overflow: hidden;
      border-radius: 24px;
      height: 255px;
      margin-bottom: 16px;
    }

    .board-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .hero-board:hover .board-image img {
      transform: scale(1.04);
    }

    .status-card {
      display: grid;
      gap: 10px;
    }

    .status-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 13px 14px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: var(--white);
    }

    .status-row span {
      color: var(--muted);
      font-size: 13px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--obsidian);
      font-size: 13px;
      font-weight: 800;
    }

    .status-badge::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--mint);
    }

    main {
      background:
        radial-gradient(circle at 10% 8%, rgba(34, 214, 163, .10), transparent 28%),
        linear-gradient(180deg, var(--mist), #FFFFFF 42%, var(--mist));
    }

    .section {
      padding: 84px 0;
    }

    .section-tight {
      padding: 68px 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-title {
      max-width: 760px;
    }

    .section-title h2 {
      font-size: clamp(27px, 3vw, 36px);
      line-height: 1.22;
      color: var(--obsidian);
      margin-bottom: 12px;
      font-weight: 850;
      letter-spacing: -.01em;
    }

    .section-title p {
      color: var(--muted);
      font-size: 17px;
      max-width: 760px;
    }

    .tag-row,
    .filter-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag,
    .filter-tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 36px;
      padding: 8px 13px;
      border-radius: 999px;
      background: var(--white);
      border: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
      transition: var(--ease);
    }

    .filter-tag.active,
    .tag:hover,
    .filter-tag:hover {
      color: var(--obsidian);
      border-color: rgba(34, 214, 163, .55);
      background: rgba(34, 214, 163, .12);
    }

    .overview-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 24px;
      align-items: stretch;
    }

    .feature-card {
      border: 1px solid var(--line);
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-soft);
      transition: var(--ease);
      position: relative;
      overflow: hidden;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      border-color: rgba(34, 214, 163, .55);
      box-shadow: var(--shadow);
    }

    .feature-card.large {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 24px;
      align-items: center;
      min-height: 360px;
    }

    .feature-card h3 {
      font-size: 23px;
      line-height: 1.32;
      color: var(--obsidian);
      margin-bottom: 12px;
    }

    .feature-card p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .feature-image {
      overflow: hidden;
      border-radius: 20px;
      min-height: 250px;
      background: var(--sage);
    }

    .feature-image img {
      width: 100%;
      height: 100%;
      min-height: 250px;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .feature-card:hover .feature-image img {
      transform: scale(1.035);
    }

    .mini-stack {
      display: grid;
      gap: 24px;
    }

    .check-list {
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      color: var(--text);
      align-items: flex-start;
    }

    .check-list li::before {
      content: "✓";
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: rgba(34, 214, 163, .16);
      color: var(--mint-strong);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      font-weight: 900;
      margin-top: 3px;
      font-size: 13px;
    }

    .scenario-wrap {
      background: var(--obsidian);
      color: var(--footer-text);
      border-radius: var(--radius-xl);
      padding: 42px;
      position: relative;
      overflow: hidden;
    }

    .scenario-wrap::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 90% 10%, rgba(34, 214, 163, .22), transparent 32%),
        linear-gradient(135deg, rgba(255,255,255,.07), transparent 42%);
      pointer-events: none;
    }

    .scenario-wrap .section-head {
      position: relative;
      z-index: 1;
    }

    .scenario-wrap h2 {
      color: var(--footer-text);
    }

    .scenario-wrap p {
      color: var(--footer-muted);
    }

    .scenario-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }

    .scenario-card {
      padding: 22px;
      border: 1px solid rgba(255, 255, 255, .12);
      background: rgba(255, 255, 255, .06);
      border-radius: 22px;
      transition: var(--ease);
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      border-color: rgba(34, 214, 163, .46);
      background: rgba(34, 214, 163, .09);
    }

    .scenario-num {
      display: inline-flex;
      width: 34px;
      height: 34px;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: var(--mint);
      color: var(--obsidian);
      font-weight: 900;
      margin-bottom: 18px;
    }

    .scenario-card h3 {
      font-size: 19px;
      margin-bottom: 8px;
    }

    .scenario-card p {
      font-size: 14px;
      color: var(--footer-muted);
    }

    .process {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 34px;
      align-items: start;
    }

    .process-aside {
      position: sticky;
      top: calc(var(--header-h) + 24px);
      padding: 30px;
      border-radius: var(--radius-lg);
      background: var(--sage);
      border: 1px solid var(--line);
    }

    .process-aside h2 {
      font-size: 31px;
      line-height: 1.25;
      margin-bottom: 13px;
      color: var(--obsidian);
    }

    .process-aside p {
      color: var(--muted);
      margin-bottom: 20px;
    }

    .timeline {
      display: grid;
      gap: 16px;
    }

    .timeline-item {
      display: grid;
      grid-template-columns: 58px 1fr;
      gap: 18px;
      padding: 24px;
      border-radius: 24px;
      background: var(--white);
      border: 1px solid var(--line);
      box-shadow: 0 12px 32px rgba(17, 19, 24, .06);
      transition: var(--ease);
    }

    .timeline-item:hover {
      transform: translateX(4px);
      border-color: rgba(34, 214, 163, .56);
    }

    .timeline-icon {
      width: 58px;
      height: 58px;
      border-radius: 20px;
      background: var(--obsidian);
      color: var(--mint);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 18px;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
    }

    .timeline-item h3 {
      font-size: 21px;
      margin-bottom: 6px;
      color: var(--obsidian);
    }

    .timeline-item p {
      color: var(--muted);
    }

    .notice-panel {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      align-items: stretch;
    }

    .notice-card {
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: var(--white);
      padding: 28px;
      box-shadow: var(--shadow-soft);
    }

    .notice-card.highlight {
      background:
        linear-gradient(135deg, rgba(34, 214, 163, .12), rgba(242, 184, 75, .11)),
        var(--white);
    }

    .notice-card h2 {
      font-size: 29px;
      line-height: 1.25;
      margin-bottom: 14px;
      color: var(--obsidian);
    }

    .notice-card p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .info-list {
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .info-list li {
      padding: 14px 15px;
      border-radius: 16px;
      background: rgba(234, 242, 237, .72);
      border: 1px solid rgba(221, 228, 222, .9);
      color: var(--text);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 26px;
      align-items: stretch;
    }

    .contact-card,
    .form-card {
      border-radius: var(--radius-lg);
      background: var(--white);
      border: 1px solid var(--line);
      padding: 30px;
      box-shadow: var(--shadow-soft);
    }

    .contact-card {
      background:
        linear-gradient(145deg, rgba(17, 19, 24, .94), rgba(37, 42, 46, .92)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      color: var(--footer-text);
      overflow: hidden;
      position: relative;
    }

    .contact-card::after {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      right: -70px;
      bottom: -70px;
      background: radial-gradient(circle, rgba(34, 214, 163, .28), transparent 68%);
    }

    .contact-card h2 {
      font-size: 31px;
      line-height: 1.25;
      margin-bottom: 14px;
      position: relative;
      z-index: 1;
    }

    .contact-card p,
    .contact-card .contact-note {
      color: var(--footer-muted);
      position: relative;
      z-index: 1;
    }

    .contact-note {
      display: grid;
      gap: 12px;
      margin-top: 24px;
      list-style: none;
    }

    .contact-note li {
      padding: 13px 14px;
      border-radius: 16px;
      border: 1px solid rgba(255, 255, 255, .12);
      background: rgba(255, 255, 255, .06);
    }

    .form-card h3 {
      font-size: 24px;
      margin-bottom: 8px;
      color: var(--obsidian);
    }

    .form-card > p {
      color: var(--muted);
      margin-bottom: 22px;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }

    .field {
      display: grid;
      gap: 8px;
    }

    .field.full {
      grid-column: 1 / -1;
    }

    .field label {
      font-size: 14px;
      color: var(--text);
      font-weight: 800;
    }

    .privacy-tip {
      font-size: 13px;
      color: var(--muted);
      margin: 12px 0 18px;
      padding: 12px 14px;
      background: var(--sage);
      border-radius: 14px;
      border: 1px solid var(--line);
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .faq-item {
      border-radius: 22px;
      background: var(--white);
      border: 1px solid var(--line);
      overflow: hidden;
      box-shadow: 0 10px 28px rgba(17, 19, 24, .05);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 20px 22px;
      color: var(--obsidian);
      font-weight: 850;
      text-align: left;
    }

    .faq-question span:first-child {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }

    .faq-index {
      width: 30px;
      height: 30px;
      border-radius: 999px;
      background: rgba(34, 214, 163, .14);
      color: var(--mint-strong);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 900;
      flex: 0 0 auto;
    }

    .faq-toggle {
      width: 28px;
      height: 28px;
      border-radius: 999px;
      background: var(--sage);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--obsidian);
      flex: 0 0 auto;
      transition: var(--ease);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 21px 64px;
      color: var(--muted);
      font-size: 15px;
    }

    .faq-item.open {
      border-color: rgba(34, 214, 163, .52);
      background: linear-gradient(180deg, rgba(34, 214, 163, .08), #fff 55%);
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .faq-item.open .faq-toggle {
      transform: rotate(45deg);
      background: var(--mint);
    }

    .cta-band {
      padding: 0 0 88px;
    }

    .cta-inner {
      border-radius: var(--radius-xl);
      background:
        linear-gradient(110deg, rgba(17, 19, 24, .98), rgba(32, 42, 38, .95)),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
      color: var(--footer-text);
      padding: 46px;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 26px;
      align-items: center;
      overflow: hidden;
      position: relative;
    }

    .cta-inner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 78% 25%, rgba(34, 214, 163, .24), transparent 38%);
      pointer-events: none;
    }

    .cta-inner > * {
      position: relative;
      z-index: 1;
    }

    .cta-inner h2 {
      font-size: clamp(27px, 3vw, 38px);
      line-height: 1.22;
      margin-bottom: 12px;
    }

    .cta-inner p {
      color: var(--footer-muted);
      max-width: 760px;
    }

    .cta-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .site-footer {
      background: var(--obsidian);
      color: var(--footer-text);
      padding-top: 58px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.35fr .8fr 1fr 1fr;
      gap: 34px;
      padding-bottom: 38px;
    }

    .footer-brand p {
      margin-top: 18px;
      color: var(--footer-muted);
      font-size: 14px;
      max-width: 360px;
    }

    .site-footer .brand-text strong {
      color: var(--footer-text);
    }

    .site-footer .brand-text span {
      color: var(--footer-muted);
    }

    .footer-group h3 {
      font-size: 16px;
      margin-bottom: 16px;
      color: var(--footer-text);
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: var(--footer-muted);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--mint);
      transform: translateX(3px);
    }

    .footer-note {
      display: grid;
      gap: 10px;
      color: var(--footer-muted);
      font-size: 14px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .10);
      padding: 20px 0 26px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      color: var(--footer-muted);
      font-size: 13px;
    }

    @media (max-width: 1080px) {
      .header-actions {
        display: none;
      }

      .hero-inner,
      .overview-grid,
      .process,
      .contact-grid {
        grid-template-columns: 1fr;
      }

      .hero-board {
        transform: none;
      }

      .scenario-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .process-aside {
        position: static;
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
      }

      .cta-inner {
        grid-template-columns: 1fr;
      }

      .cta-actions {
        justify-content: flex-start;
      }
    }

    @media (max-width: 820px) {
      :root {
        --header-h: 68px;
      }

      .container {
        width: min(100% - 28px, var(--container));
      }

      .desktop-nav {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .header-inner {
        height: var(--header-h);
      }

      .brand-text strong {
        font-size: 15px;
      }

      .brand-text span {
        font-size: 11px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .hero {
        padding: 48px 0 50px;
      }

      .hero-points,
      .notice-panel,
      .faq-grid,
      .form-grid {
        grid-template-columns: 1fr;
      }

      .feature-card.large {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 58px 0;
      }

      .section-tight {
        padding: 50px 0;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
      }

      .filter-row {
        flex-wrap: nowrap;
        overflow-x: auto;
        width: 100%;
        padding-bottom: 4px;
      }

      .filter-tag {
        flex: 0 0 auto;
      }

      .scenario-wrap {
        padding: 26px;
        border-radius: 26px;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 560px) {
      .hero-actions,
      .cta-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .scenario-grid {
        grid-template-columns: 1fr;
      }

      .timeline-item {
        grid-template-columns: 1fr;
      }

      .timeline-icon {
        width: 50px;
        height: 50px;
        border-radius: 16px;
      }

      .faq-answer {
        padding-left: 22px;
      }

      .cta-inner {
        padding: 30px 22px;
      }

      .contact-card,
      .form-card,
      .feature-card,
      .notice-card {
        padding: 22px;
      }

      .board-image {
        height: 210px;
      }
    }