/* roulang page: index */
:root{
      --brand:#2563EB;
      --brand-2:#0EA5A4;
      --brand-3:#12B3C7;
      --ink:#102033;
      --text:#172033;
      --muted:#526173;
      --line:#E4EAF2;
      --bg:#FFFFFF;
      --soft:#F4F8FF;
      --soft-2:#EEF5FF;
      --soft-3:#F8FAFC;
      --ok:#22C55E;
      --shadow:0 12px 34px rgba(15, 35, 70, .08);
      --shadow-hover:0 18px 48px rgba(15, 35, 70, .12);
      --radius-sm:10px;
      --radius-md:16px;
      --radius-lg:24px;
      --radius-xl:30px;
      --container:1240px;
      --section-y:clamp(56px,7vw,108px);
      --transition:all .22s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(37,99,235,.08), transparent 28%),
        radial-gradient(circle at top right, rgba(14,165,164,.06), transparent 22%),
        linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
      line-height:1.75;
      font-size:16px;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    img{max-width:100%;display:block;border:0}
    a{
      color:inherit;
      text-decoration:none;
      transition:var(--transition);
    }
    a:hover{color:var(--brand)}
    p{margin:0 0 1rem}
    ul{margin:0;padding:0;list-style:none}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(37,99,235,.18);color:var(--ink)}
    :focus-visible{outline:3px solid rgba(37,99,235,.26);outline-offset:3px}

    .grid-container{max-width:var(--container)}
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,255,255,.96);
      border-bottom:1px solid rgba(228,234,242,.92);
      box-shadow:0 8px 28px rgba(15,35,70,.04);
      backdrop-filter:saturate(120%);
    }
    .header-inner{
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:20px;
      padding:14px 0;
    }
    .nav-group{
      display:flex;
      align-items:center;
      gap:10px;
      min-height:48px;
    }
    .nav-left{justify-content:flex-start}
    .nav-right{justify-content:flex-end}
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      padding:10px 14px;
      border-radius:999px;
      background:linear-gradient(180deg,#ffffff 0%, #f7fbff 100%);
      border:1px solid var(--line);
      box-shadow:0 6px 20px rgba(15,35,70,.05);
      transition:var(--transition);
      white-space:nowrap;
    }
    .brand:hover{
      transform:translateY(-1px);
      border-color:rgba(37,99,235,.22);
      box-shadow:0 10px 26px rgba(15,35,70,.08);
    }
    .brand-mark{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:36px;
      height:36px;
      border-radius:12px;
      background:linear-gradient(135deg, var(--brand), #5b8dff);
      color:#fff;
      font-weight:800;
      letter-spacing:.04em;
      box-shadow:0 10px 22px rgba(37,99,235,.2);
      flex:0 0 auto;
    }
    .brand-text{
      font-size:16px;
      font-weight:800;
      color:var(--ink);
      letter-spacing:.01em;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      height:44px;
      padding:0 12px;
      color:#314257;
      font-weight:600;
      border-radius:999px;
      transition:var(--transition);
    }
    .nav-link::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:7px;
      height:2px;
      border-radius:999px;
      background:transparent;
      transform:scaleX(.15);
      transform-origin:center;
      transition:var(--transition);
    }
    .nav-link:hover{
      color:var(--brand);
      background:rgba(37,99,235,.06);
    }
    .nav-link:hover::after,
    .nav-link.is-active::after{
      background:var(--brand);
      transform:scaleX(1);
    }
    .nav-link.is-active{
      color:var(--brand);
      background:rgba(37,99,235,.08);
    }
    .button{
      border:0;
      border-radius:14px;
      font-weight:700;
      line-height:1;
      padding:.98rem 1.18rem;
      transition:var(--transition);
      box-shadow:none;
      margin:0;
    }
    .button.primary{
      background:var(--brand);
      color:#fff;
      box-shadow:0 12px 24px rgba(37,99,235,.18);
    }
    .button.primary:hover,
    .button.primary:focus{
      background:#1f56d2;
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 16px 28px rgba(37,99,235,.22);
    }
    .button.secondary{
      background:#fff;
      color:var(--brand);
      border:1px solid rgba(37,99,235,.22);
      box-shadow:0 10px 18px rgba(15,35,70,.04);
    }
    .button.secondary:hover,
    .button.secondary:focus{
      background:var(--soft-2);
      color:var(--brand);
      transform:translateY(-2px);
      border-color:rgba(37,99,235,.34);
      box-shadow:0 14px 24px rgba(15,35,70,.08);
    }
    .nav-cta{
      padding:.88rem 1.1rem;
    }

    .title-bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:14px 0;
      background:transparent;
    }
    .mobile-brand{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:800;
      color:var(--ink);
      white-space:nowrap;
    }
    .mobile-brand .brand-mark{width:32px;height:32px;border-radius:11px;font-size:14px}
    .menu-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:74px;
      height:42px;
      padding:0 14px;
      border-radius:12px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--ink);
      font-weight:700;
      box-shadow:0 6px 16px rgba(15,35,70,.05);
      cursor:pointer;
    }
    .menu-btn:hover{border-color:rgba(37,99,235,.24);color:var(--brand)}
    .mobile-menu{
      display:none;
      padding:10px 0 18px;
      border-top:1px solid var(--line);
      background:#fff;
    }
    .mobile-menu.is-open{display:block}
    .mobile-nav a,
    .mobile-nav .button{
      width:100%;
      justify-content:center;
      text-align:center;
      margin:6px 0;
    }
    .mobile-nav a{
      display:flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      border-radius:12px;
      border:1px solid transparent;
      color:var(--ink);
      font-weight:700;
      background:var(--soft-3);
    }
    .mobile-nav a.is-active{
      background:rgba(37,99,235,.08);
      color:var(--brand);
      border-color:rgba(37,99,235,.18);
    }

    .hero-section{
      position:relative;
      overflow:hidden;
      padding:clamp(34px,4vw,56px) 0 26px;
    }
    .hero-section::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 14% 22%, rgba(37,99,235,.12), transparent 28%),
        radial-gradient(circle at 86% 18%, rgba(14,165,164,.08), transparent 24%);
      pointer-events:none;
    }
    .hero-wrap{
      position:relative;
      z-index:1;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(37,99,235,.08);
      color:var(--brand);
      border:1px solid rgba(37,99,235,.12);
      font-size:13px;
      font-weight:700;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--brand-2);
      box-shadow:0 0 0 4px rgba(14,165,164,.12);
      flex:0 0 auto;
    }
    .hero-title{
      margin:0 0 16px;
      color:var(--ink);
      font-size:clamp(32px,4.2vw,56px);
      line-height:1.15;
      letter-spacing:-.03em;
      font-weight:900;
    }
    .hero-subtitle{
      max-width:640px;
      font-size:clamp(16px,1.25vw,18px);
      color:var(--muted);
      line-height:1.85;
      margin-bottom:24px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-bottom:18px;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:14px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:var(--soft);
      color:#39506b;
      border:1px solid rgba(37,99,235,.10);
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }
    .tag.ok{
      background:rgba(34,197,94,.08);
      color:#1f7f45;
      border-color:rgba(34,197,94,.16);
    }
    .tag.accent{
      background:rgba(14,165,164,.08);
      color:#0f7f87;
      border-color:rgba(14,165,164,.14);
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .meta-item{
      padding:10px 14px;
      border-radius:14px;
      background:#fff;
      border:1px solid var(--line);
      color:#41556f;
      font-size:13px;
      font-weight:600;
      box-shadow:0 8px 20px rgba(15,35,70,.04);
    }

    .hero-visual{
      position:relative;
      padding:14px;
      border-radius:var(--radius-xl);
      background:linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
      border:1px solid rgba(228,234,242,.95);
      box-shadow:var(--shadow);
    }
    .hero-shot{
      position:relative;
      min-height:520px;
      border-radius:calc(var(--radius-xl) - 10px);
      overflow:hidden;
      background:
        linear-gradient(180deg, rgba(9,29,58,.06), rgba(9,29,58,.20)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }
    .hero-shot::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.0) 30%, rgba(255,255,255,.16) 100%);
      pointer-events:none;
    }
    .hero-inner-card{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:16px;
      align-items:end;
      z-index:2;
    }
    .hero-panel{
      background:rgba(255,255,255,.96);
      border:1px solid rgba(228,234,242,.98);
      border-radius:22px;
      padding:16px;
      box-shadow:0 12px 30px rgba(15,35,70,.10);
    }
    .hero-panel h3{
      margin:0 0 8px;
      font-size:18px;
      color:var(--ink);
      font-weight:800;
    }
    .hero-panel p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }
    .hero-stats{
      display:grid;
      gap:12px;
    }
    .mini-stat{
      background:rgba(255,255,255,.96);
      border:1px solid rgba(228,234,242,.98);
      border-radius:20px;
      padding:14px 16px;
      box-shadow:0 10px 24px rgba(15,35,70,.09);
    }
    .mini-stat strong{
      display:block;
      font-size:20px;
      line-height:1.2;
      color:var(--brand);
      margin-bottom:4px;
    }
    .mini-stat span{
      display:block;
      font-size:13px;
      color:#4d6077;
      line-height:1.65;
    }

    .section-pad{
      padding:var(--section-y) 0;
      position:relative;
    }
    .section-pad.soft{
      background:linear-gradient(180deg, rgba(244,248,255,.82), rgba(255,255,255,.96));
      border-top:1px solid rgba(228,234,242,.65);
      border-bottom:1px solid rgba(228,234,242,.55);
    }
    .section-head{
      margin-bottom:28px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--brand);
      font-size:13px;
      font-weight:800;
      letter-spacing:.03em;
      text-transform:none;
      margin-bottom:10px;
    }
    .section-kicker::before{
      content:"";
      width:10px;
      height:10px;
      border-radius:999px;
      background:rgba(14,165,164,.18);
      border:3px solid rgba(14,165,164,.22);
      box-sizing:border-box;
    }
    .section-title{
      margin:0 0 10px;
      color:var(--ink);
      font-size:clamp(26px,3.2vw,40px);
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .section-desc{
      max-width:760px;
      margin:0;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
    }

    .value-grid{
      display:grid;
      grid-template-columns:repeat(4, 1fr);
      gap:16px;
    }
    .value-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px 18px;
      box-shadow:var(--shadow);
      transition:var(--transition);
      min-height:168px;
    }
    .value-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(37,99,235,.18);
    }
    .value-icon{
      width:46px;
      height:46px;
      border-radius:14px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(14,165,164,.10));
      color:var(--brand);
      margin-bottom:14px;
    }
    .value-card h3{
      margin:0 0 8px;
      color:var(--ink);
      font-size:18px;
      font-weight:800;
      line-height:1.35;
    }
    .value-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.78;
    }

    .feature-shell{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      padding:20px;
      box-shadow:var(--shadow);
    }
    .feature-left{
      background:linear-gradient(180deg, var(--soft), #fff);
      border:1px solid rgba(37,99,235,.10);
      border-radius:22px;
      padding:26px;
      height:100%;
    }
    .feature-left h3{
      margin:0 0 12px;
      color:var(--ink);
      font-size:28px;
      line-height:1.3;
      font-weight:900;
    }
    .feature-left p{
      color:var(--muted);
      margin-bottom:18px;
    }
    .mini-stack{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:16px;
    }
    .feature-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:20px;
      padding:18px;
      box-shadow:0 10px 24px rgba(15,35,70,.05);
      transition:var(--transition);
      min-height:100%;
    }
    .feature-card:hover{
      transform:translateY(-4px);
      border-color:rgba(37,99,235,.18);
      box-shadow:var(--shadow-hover);
    }
    .feature-main{
      grid-column:1 / -1;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:16px;
      align-items:center;
      background:linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    }
    .feature-thumb{
      overflow:hidden;
      border-radius:18px;
      border:1px solid var(--line);
      min-height:260px;
      background:#f3f7ff;
    }
    .feature-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      min-height:260px;
    }
    .feature-copy h4{
      margin:0 0 10px;
      font-size:22px;
      line-height:1.35;
      font-weight:850;
      color:var(--ink);
    }
    .feature-copy p{
      margin:0 0 14px;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .check-list{
      display:grid;
      gap:10px;
      margin:0;
    }
    .check-list li{
      position:relative;
      padding-left:24px;
      color:#42546a;
      line-height:1.7;
      font-size:14px;
    }
    .check-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:9px;
      width:14px;
      height:14px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--brand), var(--brand-3));
      box-shadow:0 0 0 4px rgba(37,99,235,.08);
    }
    .check-list li::after{
      content:"";
      position:absolute;
      left:4px;
      top:13px;
      width:6px;
      height:3px;
      border-left:2px solid #fff;
      border-bottom:2px solid #fff;
      transform:rotate(-45deg);
    }
    .feature-card h5{
      margin:0 0 10px;
      font-size:18px;
      font-weight:800;
      color:var(--ink);
      line-height:1.35;
    }
    .feature-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .icon-circle{
      width:42px;
      height:42px;
      border-radius:14px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(37,99,235,.08);
      color:var(--brand);
      margin-bottom:12px;
      font-weight:800;
    }

    .category-entry{
      background:
        radial-gradient(circle at 15% 20%, rgba(37,99,235,.10), transparent 32%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
      border-top:1px solid rgba(228,234,242,.65);
      border-bottom:1px solid rgba(228,234,242,.65);
    }
    .category-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:28px;
      overflow:hidden;
      box-shadow:var(--shadow);
      display:grid;
      grid-template-columns:1fr 1.15fr;
      min-height:360px;
    }
    .category-media{
      position:relative;
      overflow:hidden;
      background:#edf4ff;
    }
    .category-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      min-height:360px;
    }
    .category-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(14,29,58,.04), rgba(14,29,58,.18));
      pointer-events:none;
    }
    .category-body{
      padding:30px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:16px;
    }
    .category-body h3{
      margin:0;
      font-size:28px;
      color:var(--ink);
      font-weight:900;
      line-height:1.25;
    }
    .category-body p{
      color:var(--muted);
      margin:0;
    }
    .category-points{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:12px;
      margin-top:4px;
    }
    .point{
      padding:14px 16px;
      border-radius:18px;
      background:var(--soft-3);
      border:1px solid var(--line);
    }
    .point strong{
      display:block;
      color:var(--ink);
      font-size:14px;
      margin-bottom:4px;
    }
    .point span{
      color:#5a6c80;
      font-size:13px;
      line-height:1.7;
    }

    .scenario-wrap{
      background:linear-gradient(180deg, rgba(37,99,235,.05), rgba(255,255,255,1));
      border:1px solid rgba(228,234,242,.7);
      border-radius:var(--radius-xl);
      padding:24px;
      box-shadow:var(--shadow);
    }
    .scenario-list{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:16px;
    }
    .scenario-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:18px;
      transition:var(--transition);
      box-shadow:0 10px 22px rgba(15,35,70,.05);
      min-height:100%;
    }
    .scenario-card:hover{
      transform:translateY(-4px);
      border-color:rgba(37,99,235,.18);
      box-shadow:var(--shadow-hover);
    }
    .scenario-index{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:36px;
      height:36px;
      border-radius:12px;
      background:rgba(37,99,235,.08);
      color:var(--brand);
      font-weight:800;
      margin-bottom:14px;
    }
    .scenario-card h3{
      margin:0 0 8px;
      font-size:18px;
      font-weight:800;
      line-height:1.35;
      color:var(--ink);
    }
    .scenario-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.78;
    }

    .case-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:16px;
    }
    .case-feature{
      position:relative;
      overflow:hidden;
      border-radius:28px;
      min-height:420px;
      box-shadow:var(--shadow);
      border:1px solid var(--line);
      background:#fff;
    }
    .case-feature img{
      width:100%;
      height:100%;
      object-fit:cover;
      min-height:420px;
    }
    .case-feature .case-overlay{
      position:absolute;
      inset:auto 18px 18px 18px;
      background:rgba(255,255,255,.96);
      border:1px solid rgba(228,234,242,.98);
      border-radius:22px;
      padding:18px;
      box-shadow:0 14px 32px rgba(15,35,70,.10);
    }
    .case-feature .case-overlay h3{
      margin:0 0 8px;
      font-size:22px;
      font-weight:850;
      color:var(--ink);
    }
    .case-feature .case-overlay p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }
    .case-side{
      display:grid;
      gap:16px;
    }
    .case-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      overflow:hidden;
      box-shadow:var(--shadow);
      transition:var(--transition);
    }
    .case-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(37,99,235,.18);
    }
    .case-card img{
      width:100%;
      height:196px;
      object-fit:cover;
    }
    .case-card-body{
      padding:18px;
    }
    .case-card h3{
      margin:0 0 10px;
      font-size:18px;
      line-height:1.35;
      color:var(--ink);
      font-weight:850;
    }
    .case-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.78;
    }
    .case-pills{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }

    .plan-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:16px;
    }
    .plan-card{
      position:relative;
      background:#fff;
      border:1px solid var(--line);
      border-radius:26px;
      padding:22px;
      box-shadow:var(--shadow);
      transition:var(--transition);
      overflow:hidden;
      min-height:100%;
      display:flex;
      flex-direction:column;
    }
    .plan-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(37,99,235,.18);
    }
    .plan-card.recommended{
      border-color:rgba(37,99,235,.28);
      box-shadow:0 18px 42px rgba(37,99,235,.12);
      transform:translateY(-6px);
      background:
        linear-gradient(180deg, rgba(37,99,235,.03), rgba(255,255,255,1));
    }
    .plan-badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      align-self:flex-start;
      padding:6px 12px;
      border-radius:999px;
      background:rgba(37,99,235,.08);
      color:var(--brand);
      font-size:12px;
      font-weight:800;
      margin-bottom:12px;
    }
    .plan-card h3{
      margin:0 0 10px;
      font-size:22px;
      font-weight:900;
      color:var(--ink);
      line-height:1.35;
    }
    .plan-sub{
      color:var(--muted);
      margin-bottom:16px;
      min-height:56px;
    }
    .plan-meta{
      display:grid;
      gap:10px;
      margin:0 0 18px;
      padding:0;
    }
    .plan-meta li{
      color:#42546a;
      font-size:14px;
      line-height:1.7;
      padding-left:22px;
      position:relative;
    }
    .plan-meta li::before{
      content:"";
      position:absolute;
      left:0;
      top:9px;
      width:12px;
      height:12px;
      border-radius:999px;
      background:rgba(14,165,164,.16);
      border:3px solid rgba(14,165,164,.28);
      box-sizing:border-box;
    }
    .plan-foot{
      margin-top:auto;
      padding-top:4px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      justify-content:space-between;
    }
    .plan-note{
      font-size:13px;
      color:#6a7b8f;
    }

    .faq-shell{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      padding:8px;
      box-shadow:var(--shadow);
    }
    .accordion.faq-accordion{
      background:transparent;
      border:none;
      margin:0;
    }
    .accordion-item{
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
      overflow:hidden;
      margin:12px 0;
      box-shadow:0 8px 20px rgba(15,35,70,.04);
    }
    .accordion-title{
      position:relative;
      padding:18px 52px 18px 20px;
      color:var(--ink);
      font-weight:800;
      font-size:16px;
      line-height:1.6;
      background:#fff;
      border:none;
    }
    .accordion-title:hover{
      background:var(--soft-3);
      color:var(--brand);
    }
    .accordion-title::before,
    .accordion-title::after{
      content:"";
      position:absolute;
      right:22px;
      top:50%;
      transform:translateY(-50%);
      background:var(--brand);
      border-radius:999px;
      transition:var(--transition);
    }
    .accordion-title::before{
      width:14px;
      height:2px;
    }
    .accordion-title::after{
      width:2px;
      height:14px;
    }
    .is-active > .accordion-title{
      background:rgba(37,99,235,.06);
    }
    .is-active > .accordion-title::after{
      transform:translateY(-50%) scaleY(0);
    }
    .accordion-content{
      border:none;
      padding:0 20px 20px;
      color:var(--muted);
      background:#fff;
      font-size:15px;
      line-height:1.85;
    }

    .cta-section{
      position:relative;
      overflow:hidden;
      padding:34px 0 0;
    }
    .cta-panel{
      position:relative;
      border-radius:34px;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(16,32,51,.72), rgba(37,99,235,.66)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:0 24px 48px rgba(15,35,70,.16);
      border:1px solid rgba(255,255,255,.12);
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.0));
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      padding:clamp(28px,4vw,48px);
      color:#fff;
    }
    .cta-inner h2{
      margin:0 0 12px;
      font-size:clamp(28px,3.8vw,44px);
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .cta-inner p{
      max-width:760px;
      margin:0 0 20px;
      color:rgba(255,255,255,.90);
      font-size:16px;
      line-height:1.85;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:10px;
    }
    .button.white{
      background:#fff;
      color:var(--brand);
      border:1px solid rgba(255,255,255,.08);
    }
    .button.white:hover,
    .button.white:focus{
      background:#eff5ff;
      color:#1f56d2;
      transform:translateY(-2px);
    }
    .cta-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .cta-tags .tag{
      background:rgba(255,255,255,.12);
      color:#fff;
      border-color:rgba(255,255,255,.14);
    }

    .site-footer{
      margin-top:24px;
      padding:42px 0 32px;
      background:#fff;
      border-top:1px solid var(--line);
    }
    .footer-top{
      display:grid;
      grid-template-columns:1.2fr .8fr 1fr;
      gap:22px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-brand .brand-text{
      font-size:18px;
    }
    .footer-desc{
      color:var(--muted);
      max-width:420px;
      font-size:14px;
      line-height:1.85;
      margin:0 0 16px;
    }
    .footer-note{
      color:#6a7b8f;
      font-size:13px;
      line-height:1.8;
      margin:0;
    }
    .footer-col h3{
      margin:0 0 14px;
      font-size:15px;
      font-weight:800;
      color:var(--ink);
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#496079;
      font-size:14px;
      line-height:1.65;
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:fit-content;
    }
    .footer-links a::before{
      content:"";
      width:6px;
      height:6px;
      border-radius:999px;
      background:rgba(37,99,235,.35);
      transition:var(--transition);
      flex:0 0 auto;
    }
    .footer-links a:hover{
      color:var(--brand);
      transform:translateX(2px);
    }
    .footer-links a:hover::before{background:var(--brand)}
    .footer-bottom{
      margin-top:26px;
      padding-top:18px;
      border-top:1px solid var(--line);
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:#6b7c90;
      font-size:13px;
      line-height:1.7;
    }

    .subtle-divider{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(228,234,242,.95), transparent);
      margin:28px 0;
    }

    @media (max-width: 1199px){
      .value-grid,
      .scenario-list,
      .plan-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
      .category-card,
      .feature-main,
      .case-grid,
      .footer-top{grid-template-columns:1fr}
      .hero-inner-card{
        grid-template-columns:1fr;
      }
      .hero-shot{min-height:600px}
      .feature-grid{grid-template-columns:repeat(2, minmax(0, 1fr))}
      .feature-main{grid-column:auto}
    }
    @media (max-width: 767px){
      .header-inner{display:none}
      .title-bar{display:flex}
      .hero-section{padding-top:18px}
      .hero-shot{min-height:500px}
      .hero-inner-card{
        left:14px;
        right:14px;
        bottom:14px;
      }
      .hero-title{font-size:clamp(30px,8vw,38px)}
      .section-title{font-size:clamp(24px,6vw,30px)}
      .value-grid,
      .scenario-list,
      .plan-grid,
      .feature-grid,
      .category-points{grid-template-columns:1fr}
      .feature-left,
      .category-body,
      .cta-inner{padding:20px}
      .category-card,
      .feature-main{
        display:block;
      }
      .feature-thumb{
        margin-top:16px;
        min-height:auto;
      }
      .feature-thumb img{min-height:220px}
      .case-grid{grid-template-columns:1fr}
      .case-feature{min-height:340px}
      .case-feature img{min-height:340px}
      .accordion-title{padding-right:46px}
      .footer-bottom{flex-direction:column;align-items:flex-start}
      .button{width:auto}
      .hero-actions .button,
      .cta-actions .button{width:100%}
    }
    @media (max-width: 520px){
      body{font-size:15px}
      .brand-text{font-size:14px}
      .brand{padding:8px 12px}
      .menu-btn{min-width:68px}
      .hero-section{padding-bottom:12px}
      .hero-shot{min-height:440px}
      .hero-panel h3{font-size:17px}
      .mini-stat strong{font-size:18px}
      .value-card,
      .feature-card,
      .scenario-card,
      .plan-card,
      .case-card-body,
      .accordion-title,
      .accordion-content{padding-left:16px;padding-right:16px}
      .accordion-title{padding-top:16px;padding-bottom:16px}
      .cta-inner h2{font-size:30px}
    }

/* roulang page: category1 */
:root{
      --bg: #f8fbff;
      --panel: #ffffff;
      --panel-soft: #f4f8ff;
      --panel-soft-2: #eef5ff;
      --line: #e4eaf2;
      --text: #102033;
      --muted: #5d6b7c;
      --muted-2: #7b8897;
      --primary: #2f6bff;
      --primary-strong: #1f56e0;
      --primary-soft: rgba(47, 107, 255, 0.10);
      --cyan: #0ea5a4;
      --cyan-soft: rgba(14, 165, 164, 0.12);
      --green: #22c55e;
      --green-soft: rgba(34, 197, 94, 0.12);
      --shadow: 0 12px 34px rgba(15, 35, 70, 0.08);
      --shadow-lg: 0 18px 48px rgba(15, 35, 70, 0.12);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --container: 1240px;
      --header-h: 84px;
      --transition: all .24s ease;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(47,107,255,.08), transparent 30%),
        radial-gradient(circle at top right, rgba(14,165,164,.08), transparent 26%),
        linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
      line-height: 1.75;
      letter-spacing: .01em;
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; transition: var(--transition); }
    img { max-width: 100%; display: block; }
    button, input, textarea, select {
      font: inherit;
    }
    ::selection {
      background: rgba(47,107,255,.16);
      color: var(--text);
    }
    :focus-visible {
      outline: 3px solid rgba(47,107,255,.24);
      outline-offset: 2px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(255,255,255,.95);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(10px);
    }
    .header-shell {
      min-height: var(--header-h);
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 18px;
      position: relative;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      justify-self: center;
      white-space: nowrap;
      min-width: 0;
    }
    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary), #5b8dff);
      color: #fff;
      font-weight: 800;
      box-shadow: 0 10px 28px rgba(47,107,255,.24);
      letter-spacing: .04em;
      flex: none;
    }
    .brand-text {
      font-weight: 800;
      font-size: 18px;
      color: var(--text);
      letter-spacing: .01em;
    }
    .nav-group {
      display: flex;
      align-items: center;
      gap: 26px;
      min-width: 0;
    }
    .nav-left { justify-content: flex-start; }
    .nav-right { justify-content: flex-end; }
    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      height: 44px;
      color: #324155;
      font-weight: 600;
      font-size: 15px;
      padding: 0 2px;
      border-radius: 999px;
    }
    .nav-link::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 6px;
      width: 100%;
      height: 2px;
      border-radius: 999px;
      background: transparent;
      transform: scaleX(0.2);
      transform-origin: center;
      transition: var(--transition);
      opacity: 0;
    }
    .nav-link:hover {
      color: var(--primary-strong);
    }
    .nav-link:hover::after,
    .nav-link.is-active::after {
      background: var(--primary);
      transform: scaleX(1);
      opacity: 1;
    }
    .nav-link.is-active {
      color: var(--primary-strong);
    }

    .mobile-toggle {
      display: none;
      justify-self: end;
      width: 48px;
      height: 48px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff;
      align-items: center;
      justify-content: center;
      gap: 4px;
      flex-direction: column;
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 8px 18px rgba(15,35,70,.05);
    }
    .mobile-toggle:hover {
      border-color: rgba(47,107,255,.35);
      transform: translateY(-1px);
    }
    .mobile-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 999px;
      background: var(--text);
      transition: var(--transition);
    }

    .mobile-menu {
      display: none;
      padding: 0 0 18px;
    }
    .mobile-menu.is-open {
      display: grid;
      gap: 10px;
    }
    .mobile-menu a {
      min-height: 46px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff;
      padding: 0 16px;
      color: var(--text);
      font-weight: 600;
      box-shadow: 0 10px 24px rgba(15,35,70,.04);
    }
    .mobile-menu a.is-active {
      border-color: rgba(47,107,255,.26);
      background: linear-gradient(180deg, rgba(47,107,255,.08), rgba(47,107,255,.04));
      color: var(--primary-strong);
    }

    .page-main {
      position: relative;
    }
    .section-pad {
      padding: 88px 0;
    }
    .section-pad.compact {
      padding: 72px 0;
    }
    .section-title {
      margin: 0 0 14px;
      font-size: clamp(28px, 3vw, 42px);
      line-height: 1.2;
      letter-spacing: -.02em;
    }
    .section-subtitle {
      margin: 0;
      color: var(--muted);
      font-size: 16px;
      max-width: 760px;
    }
    .section-head {
      margin-bottom: 30px;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 14px;
      border-radius: 999px;
      background: linear-gradient(180deg, rgba(47,107,255,.10), rgba(47,107,255,.06));
      color: var(--primary-strong);
      font-weight: 700;
      font-size: 13px;
      letter-spacing: .03em;
      border: 1px solid rgba(47,107,255,.14);
      margin-bottom: 18px;
    }
    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 4px rgba(47,107,255,.12);
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      color: rgba(16,32,51,.66);
      font-size: 14px;
      margin-bottom: 16px;
      flex-wrap: wrap;
    }
    .breadcrumb a {
      color: var(--muted);
    }
    .breadcrumb a:hover {
      color: var(--primary-strong);
    }
    .breadcrumb .sep {
      color: #a7b3c2;
    }

    .hero-section {
      position: relative;
      padding: 34px 0 28px;
      overflow: hidden;
    }
    .hero-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 18% 18%, rgba(47,107,255,.10), transparent 23%),
        radial-gradient(circle at 88% 16%, rgba(14,165,164,.10), transparent 20%),
        linear-gradient(180deg, rgba(255,255,255,.40), rgba(255,255,255,.88));
      pointer-events: none;
      z-index: 0;
    }
    .hero-content {
      position: relative;
      z-index: 1;
    }
    .hero-title {
      margin: 0 0 18px;
      font-size: clamp(34px, 4.6vw, 56px);
      line-height: 1.15;
      letter-spacing: -.03em;
    }
    .hero-copy {
      margin: 0;
      color: var(--muted);
      font-size: 17px;
      max-width: 600px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin: 28px 0 22px;
    }
    .button {
      border: 1px solid transparent;
      border-radius: 14px;
      padding: 0 18px;
      height: 50px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      letter-spacing: .01em;
      transition: var(--transition);
      cursor: pointer;
      box-shadow: none;
      margin: 0;
    }
    .button.primary-btn {
      background: linear-gradient(180deg, var(--primary), var(--primary-strong));
      color: #fff;
      box-shadow: 0 14px 30px rgba(47,107,255,.20);
    }
    .button.primary-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(47,107,255,.26);
      color: #fff;
    }
    .button.secondary-btn {
      background: #fff;
      border-color: rgba(47,107,255,.24);
      color: var(--primary-strong);
    }
    .button.secondary-btn:hover {
      background: rgba(47,107,255,.06);
      border-color: rgba(47,107,255,.34);
      transform: translateY(-2px);
      color: var(--primary-strong);
    }
    .button.ghost-btn {
      background: #fff;
      border-color: var(--line);
      color: var(--text);
    }
    .button.ghost-btn:hover {
      border-color: rgba(47,107,255,.24);
      color: var(--primary-strong);
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      background: var(--panel-soft);
      border: 1px solid rgba(47,107,255,.10);
      color: #355070;
      font-size: 13px;
      font-weight: 600;
    }
    .tag.green {
      background: var(--green-soft);
      border-color: rgba(34,197,94,.16);
      color: #1e7a45;
    }
    .tag.cyan {
      background: var(--cyan-soft);
      border-color: rgba(14,165,164,.14);
      color: #0d7775;
    }

    .search-panel {
      margin-top: 26px;
      padding: 14px;
      background: rgba(255,255,255,.82);
      border: 1px solid var(--line);
      border-radius: 18px;
      box-shadow: var(--shadow);
    }
    .search-row {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
      align-items: center;
    }
    .search-panel label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: #45576b;
      margin-bottom: 8px;
    }
    .search-panel input {
      width: 100%;
      height: 52px;
      border-radius: 14px;
      border: 1px solid #d9e3ee;
      background: #fff;
      padding: 0 16px;
      color: var(--text);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.65);
      transition: var(--transition);
    }
    .search-panel input:focus {
      border-color: rgba(47,107,255,.56);
      box-shadow: 0 0 0 4px rgba(47,107,255,.10);
      outline: none;
    }
    .search-panel .button {
      min-width: 132px;
      height: 52px;
      border-radius: 14px;
    }

    .hero-visual {
      position: relative;
      min-height: 540px;
      border-radius: 28px;
      padding: 20px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.22), rgba(255,255,255,.54)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border: 1px solid rgba(228,234,242,.96);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }
    .hero-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(255,255,255,.18), rgba(255,255,255,.06)),
        radial-gradient(circle at 20% 18%, rgba(255,255,255,.42), transparent 26%);
      pointer-events: none;
    }
    .visual-card {
      position: absolute;
      background: rgba(255,255,255,.96);
      border: 1px solid rgba(228,234,242,.96);
      border-radius: 20px;
      box-shadow: var(--shadow);
      padding: 14px 16px;
      z-index: 2;
      backdrop-filter: blur(5px);
    }
    .visual-card h4 {
      margin: 0 0 6px;
      font-size: 15px;
      line-height: 1.4;
      color: var(--text);
    }
    .visual-card p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }
    .visual-card strong {
      color: var(--primary-strong);
    }
    .visual-card.card-1 {
      top: 28px;
      left: 26px;
      width: 220px;
      animation: floatY 6s ease-in-out infinite;
    }
    .visual-card.card-2 {
      right: 20px;
      top: 112px;
      width: 190px;
      animation: floatY 7s ease-in-out infinite .8s;
    }
    .visual-card.card-3 {
      left: 52px;
      bottom: 24px;
      width: 210px;
      animation: floatY 6.5s ease-in-out infinite 1.2s;
    }
    .visual-screen {
      position: absolute;
      inset: 84px 28px 84px 28px;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: 0 24px 52px rgba(16,32,51,.18);
      border: 1px solid rgba(255,255,255,.40);
      z-index: 1;
      background: #fff;
    }
    .visual-screen img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .floating-strip {
      position: absolute;
      right: 28px;
      bottom: 28px;
      z-index: 3;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 12px 15px;
      border-radius: 999px;
      background: rgba(16,32,51,.90);
      color: #fff;
      box-shadow: 0 14px 28px rgba(16,32,51,.18);
      font-weight: 700;
      font-size: 13px;
    }
    .floating-strip .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 0 5px rgba(34,197,94,.18);
    }

    .value-panel {
      margin-top: 28px;
      background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(244,248,255,.92));
      border: 1px solid var(--line);
      border-radius: 28px;
      box-shadow: var(--shadow);
      padding: 26px;
      position: relative;
      overflow: hidden;
    }
    .value-panel::before {
      content: "";
      position: absolute;
      inset: auto -120px -120px auto;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(47,107,255,.12), transparent 68%);
      pointer-events: none;
    }
    .value-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
      position: relative;
      z-index: 1;
    }
    .value-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 18px 16px;
      min-height: 148px;
      box-shadow: 0 10px 22px rgba(15,35,70,.05);
      transition: var(--transition);
    }
    .value-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(47,107,255,.24);
    }
    .value-icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      background: linear-gradient(180deg, rgba(47,107,255,.12), rgba(47,107,255,.08));
      color: var(--primary-strong);
    }
    .value-item h3 {
      margin: 0 0 8px;
      font-size: 18px;
      line-height: 1.3;
    }
    .value-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .soft-section {
      background: linear-gradient(180deg, rgba(244,248,255,.72), rgba(255,255,255,.96));
      border-top: 1px solid rgba(228,234,242,.60);
      border-bottom: 1px solid rgba(228,234,242,.60);
    }

    .panel-box {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 28px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .featured-solution {
      display: grid;
      grid-template-columns: 1.15fr .95fr;
      min-height: 320px;
    }
    .featured-solution .media {
      position: relative;
      min-height: 320px;
      background: linear-gradient(135deg, rgba(47,107,255,.08), rgba(14,165,164,.08));
    }
    .featured-solution .media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .featured-solution .media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(16,32,51,.06), rgba(16,32,51,.12));
      pointer-events: none;
    }
    .featured-solution .content {
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 16px;
    }
    .featured-solution h3 {
      margin: 0;
      font-size: clamp(24px, 2.6vw, 34px);
      line-height: 1.25;
      letter-spacing: -.02em;
    }
    .featured-solution p {
      margin: 0;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
    }
    .check-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }
    .check-list li {
      position: relative;
      padding-left: 28px;
      color: #415164;
      line-height: 1.7;
    }
    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 1px;
      width: 18px;
      height: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--green);
      font-weight: 800;
    }

    .filter-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin: 18px 0 28px;
    }
    .filter-chip {
      display: inline-flex;
      align-items: center;
      height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: #fff;
      color: #44576b;
      font-size: 14px;
      font-weight: 600;
      transition: var(--transition);
      cursor: pointer;
    }
    .filter-chip:hover {
      border-color: rgba(47,107,255,.30);
      color: var(--primary-strong);
      transform: translateY(-1px);
    }
    .filter-chip.active {
      background: linear-gradient(180deg, rgba(47,107,255,.10), rgba(47,107,255,.06));
      border-color: rgba(47,107,255,.24);
      color: var(--primary-strong);
    }

    .category-card {
      position: relative;
      height: 100%;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 22px;
      box-shadow: 0 10px 24px rgba(15,35,70,.05);
      padding: 20px;
      transition: var(--transition);
      overflow: hidden;
    }
    .category-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(47,107,255,.24);
    }
    .category-card::before {
      content: "";
      position: absolute;
      inset: 0 auto auto 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), rgba(14,165,164,.92));
    }
    .card-head {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 14px;
    }
    .card-mark {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      flex: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(180deg, rgba(47,107,255,.12), rgba(47,107,255,.08));
      color: var(--primary-strong);
    }
    .category-card h3 {
      margin: 0 0 8px;
      font-size: 20px;
      line-height: 1.35;
    }
    .category-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }
    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 16px 0 14px;
    }
    .mini-tag {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 0 10px;
      border-radius: 999px;
      background: var(--panel-soft);
      color: var(--primary-strong);
      font-size: 12px;
      font-weight: 700;
      border: 1px solid rgba(47,107,255,.10);
    }
    .bullet-list {
      margin: 0 0 18px;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 8px;
    }
    .bullet-list li {
      position: relative;
      padding-left: 22px;
      color: #415164;
      font-size: 14px;
      line-height: 1.7;
    }
    .bullet-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 9px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 4px rgba(47,107,255,.12);
    }
    .card-footer-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary-strong);
      font-weight: 700;
      font-size: 14px;
    }
    .card-footer-link:hover {
      gap: 10px;
      color: var(--primary);
    }
    .card-footer-link .arrow {
      transition: var(--transition);
    }
    .card-footer-link:hover .arrow {
      transform: translateX(2px);
    }
    .image-card {
      margin-top: 14px;
      border-radius: 18px;
      overflow: hidden;
      border: 1px solid var(--line);
      box-shadow: 0 10px 24px rgba(15,35,70,.05);
    }
    .image-card img {
      width: 100%;
      height: 170px;
      object-fit: cover;
    }

    .process-wrap {
      background: linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
      border: 1px solid var(--line);
      border-radius: 28px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .process-main {
      padding: 28px;
    }
    .steps-grid {
      display: grid;
      gap: 14px;
      margin-top: 18px;
    }
    .step-item {
      display: grid;
      grid-template-columns: 44px 1fr;
      gap: 14px;
      align-items: start;
      padding: 16px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 10px 24px rgba(15,35,70,.04);
    }
    .step-no {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(180deg, rgba(47,107,255,.12), rgba(47,107,255,.08));
      color: var(--primary-strong);
      font-weight: 800;
    }
    .step-item h4 {
      margin: 0 0 6px;
      font-size: 18px;
      line-height: 1.35;
    }
    .step-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }
    .tip-panel {
      background:
        radial-gradient(circle at top right, rgba(47,107,255,.10), transparent 32%),
        linear-gradient(180deg, rgba(244,248,255,.95), rgba(255,255,255,.98));
      border-top: 1px solid var(--line);
      padding: 28px;
      height: 100%;
    }
    .tip-panel h3 {
      margin: 0 0 14px;
      font-size: 24px;
      line-height: 1.25;
    }
    .tip-panel .tip-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .tip-panel .tip-list li {
      display: grid;
      grid-template-columns: 20px 1fr;
      gap: 10px;
      color: #415164;
      font-size: 14px;
      line-height: 1.7;
    }
    .tip-panel .tip-list li::before {
      content: "";
      margin-top: 8px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 0 4px rgba(14,165,164,.12);
    }
    .tip-panel .tip-box {
      margin-top: 18px;
      padding: 16px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid var(--line);
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .case-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 22px;
      box-shadow: 0 10px 24px rgba(15,35,70,.05);
      overflow: hidden;
      height: 100%;
      transition: var(--transition);
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(47,107,255,.24);
    }
    .case-image {
      height: 200px;
      overflow: hidden;
      background: var(--panel-soft);
      border-bottom: 1px solid var(--line);
    }
    .case-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-body {
      padding: 20px;
    }
    .case-body h3 {
      margin: 0 0 8px;
      font-size: 20px;
      line-height: 1.35;
    }
    .case-body p {
      margin: 0 0 14px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }
    .case-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .plan-card {
      position: relative;
      height: 100%;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 24px;
      box-shadow: 0 10px 24px rgba(15,35,70,.05);
      padding: 24px;
      transition: var(--transition);
    }
    .plan-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
      border-color: rgba(47,107,255,.24);
    }
    .plan-card.featured {
      transform: translateY(-8px);
      border-color: rgba(47,107,255,.30);
      box-shadow: 0 18px 44px rgba(47,107,255,.12);
      background: linear-gradient(180deg, rgba(244,248,255,.96), #fff 42%);
    }
    .plan-card.featured:hover {
      transform: translateY(-10px);
    }
    .plan-badge {
      display: inline-flex;
      align-items: center;
      height: 30px;
      padding: 0 12px;
      border-radius: 999px;
      background: rgba(47,107,255,.10);
      color: var(--primary-strong);
      border: 1px solid rgba(47,107,255,.16);
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .plan-name {
      margin: 0 0 10px;
      font-size: 22px;
      line-height: 1.35;
    }
    .plan-desc {
      margin: 0 0 16px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }
    .plan-list {
      display: grid;
      gap: 10px;
      margin: 0 0 18px;
      padding: 0;
      list-style: none;
    }
    .plan-list li {
      position: relative;
      padding-left: 22px;
      color: #415164;
      font-size: 14px;
      line-height: 1.7;
    }
    .plan-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 9px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 4px rgba(47,107,255,.12);
    }
    .plan-cta {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .accordion {
      border: 0;
      background: transparent;
      margin: 0;
    }
    .accordion-title {
      position: relative;
      font-weight: 700;
      color: var(--text);
      font-size: 16px;
      padding: 18px 56px 18px 20px !important;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: #fff;
      margin-bottom: 12px;
      box-shadow: 0 10px 24px rgba(15,35,70,.04);
      transition: var(--transition);
    }
    .accordion-title::before,
    .accordion-title::after {
      background: var(--primary);
      width: 14px;
      height: 2px;
      right: 22px;
      left: auto;
      top: 50%;
      transform-origin: center;
      transition: var(--transition);
    }
    .accordion-title::after {
      transform: translateY(-50%) rotate(90deg);
    }
    .is-active > .accordion-title {
      border-color: rgba(47,107,255,.22);
      background: linear-gradient(180deg, rgba(47,107,255,.07), rgba(47,107,255,.04));
      color: var(--primary-strong);
    }
    .is-active > .accordion-title::after {
      transform: translateY(-50%) rotate(0deg);
    }
    .accordion-content {
      padding: 0 20px 22px 20px;
      border: 0;
      background: transparent;
      color: var(--muted);
      line-height: 1.85;
      font-size: 15px;
    }
    .accordion-item {
      border: 0;
      margin-bottom: 12px;
      background: transparent;
    }

    .cta-panel {
      border-radius: 30px;
      padding: 34px;
      background:
        radial-gradient(circle at top right, rgba(14,165,164,.12), transparent 26%),
        linear-gradient(135deg, rgba(47,107,255,.12), rgba(255,255,255,.92));
      border: 1px solid rgba(47,107,255,.14);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }
    .cta-panel h2 {
      margin: 0 0 12px;
      font-size: clamp(28px, 3vw, 40px);
      line-height: 1.2;
      letter-spacing: -.02em;
    }
    .cta-panel p {
      margin: 0;
      color: #425468;
      font-size: 16px;
      line-height: 1.85;
      max-width: 760px;
    }
    .cta-actions {
      margin-top: 22px;
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }
    .cta-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .site-footer {
      margin-top: 88px;
      padding: 54px 0 20px;
      background: #fff;
      border-top: 1px solid var(--line);
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr;
      gap: 30px;
      padding-bottom: 28px;
    }
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .footer-brand .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 13px;
      font-size: 14px;
    }
    .footer-brand .brand-text {
      font-size: 17px;
      font-weight: 800;
    }
    .footer-desc,
    .footer-note {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.85;
    }
    .footer-note {
      margin-top: 10px;
      color: var(--muted-2);
    }
    .footer-col h3 {
      margin: 8px 0 16px;
      font-size: 18px;
      line-height: 1.3;
    }
    .footer-links {
      display: grid;
      gap: 10px;
    }
    .footer-links a {
      color: #415164;
      font-size: 14px;
      line-height: 1.7;
    }
    .footer-links a:hover {
      color: var(--primary-strong);
      padding-left: 3px;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: #708095;
      font-size: 13px;
      line-height: 1.7;
      flex-wrap: wrap;
    }

    .muted-note {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
    }

    @keyframes floatY {
      0%, 100% { transform: translateY(0px); }
      50% { transform: translateY(-6px); }
    }

    @media (max-width: 1200px) {
      .value-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
      .featured-solution {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 1024px) {
      .header-shell {
        grid-template-columns: auto 1fr auto;
      }
      .nav-group {
        display: none;
      }
      .mobile-toggle {
        display: inline-flex;
      }
      .hero-visual {
        min-height: 460px;
        margin-top: 28px;
      }
      .visual-screen {
        inset: 76px 22px 76px 22px;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .footer-top > :first-child {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 767px) {
      .section-pad {
        padding: 64px 0;
      }
      .section-pad.compact {
        padding: 56px 0;
      }
      .brand-text {
        font-size: 16px;
      }
      .hero-section {
        padding-top: 18px;
      }
      .hero-title {
        font-size: clamp(32px, 8vw, 38px);
      }
      .hero-copy,
      .section-subtitle {
        font-size: 15px;
      }
      .hero-visual {
        min-height: 380px;
        padding: 14px;
      }
      .visual-screen {
        inset: 64px 16px 64px 16px;
      }
      .visual-card {
        display: none;
      }
      .floating-strip {
        right: 16px;
        bottom: 16px;
        font-size: 12px;
      }
      .search-row {
        grid-template-columns: 1fr;
      }
      .search-panel .button {
        width: 100%;
      }
      .value-grid {
        grid-template-columns: 1fr;
      }
      .featured-solution .content,
      .process-main,
      .tip-panel,
      .case-body,
      .plan-card,
      .cta-panel {
        padding: 22px;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
      }
      .cta-actions,
      .hero-actions,
      .plan-cta {
        flex-direction: column;
      }
      .cta-actions .button,
      .hero-actions .button,
      .plan-cta .button {
        width: 100%;
      }
      .cta-panel {
        padding: 24px;
      }
      .accordion-title {
        padding-right: 50px !important;
      }
    }

    @media (max-width: 520px) {
      .header-shell {
        min-height: 72px;
        gap: 12px;
      }
      .brand-mark {
        width: 36px;
        height: 36px;
        border-radius: 12px;
      }
      .brand-text {
        font-size: 15px;
      }
      .mobile-toggle {
        width: 44px;
        height: 44px;
      }
      .hero-title {
        font-size: 32px;
      }
      .section-title {
        font-size: 28px;
      }
      .category-card h3,
      .case-body h3,
      .plan-name {
        font-size: 18px;
      }
    }