/* roulang page: index */
:root{
      --brand:#2f7df6;
      --brand-strong:#1d63d8;
      --brand-soft:#eaf3ff;
      --brand-pale:#f5f9ff;
      --cyan:#35b8d8;
      --ink:#172033;
      --text:#435066;
      --muted:#738098;
      --line:#dce7f5;
      --line-strong:#c6d7ee;
      --white:#ffffff;
      --bg:#f8fbff;
      --card:#ffffff;
      --orange:#f2a64a;
      --orange-soft:#fff4e4;
      --purple-soft:#f4f2ff;
      --success:#18a058;
      --danger:#e25b5b;
      --shadow-sm:0 8px 24px rgba(47,125,246,.08);
      --shadow-md:0 18px 48px rgba(36,78,130,.12);
      --shadow-lg:0 26px 70px rgba(34,74,124,.16);
      --radius-xs:10px;
      --radius-sm:12px;
      --radius:16px;
      --radius-lg:24px;
      --radius-xl:32px;
      --container:1220px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 4%,rgba(47,125,246,.08),transparent 28%),
        radial-gradient(circle at 90% 8%,rgba(53,184,216,.08),transparent 30%),
        linear-gradient(180deg,#fbfdff 0%,var(--bg) 42%,#fff 100%);
      line-height:1.72;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer;background:none}
    input,textarea{border:0;outline:0}
    ::selection{background:rgba(47,125,246,.16);color:var(--ink)}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:saturate(160%) blur(14px);
      border-bottom:1px solid rgba(220,231,245,.9);
    }
    .nav{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:700;
      color:var(--ink);
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--cyan));
      color:#fff;
      box-shadow:0 12px 28px rgba(47,125,246,.22);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:after{
      content:"";
      width:18px;height:18px;border-radius:8px;
      background:rgba(255,255,255,.28);
      position:absolute;right:-3px;bottom:-2px;
    }
    .brand-text{font-size:17px;white-space:nowrap}
    .nav-center{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:6px;
      background:#f5f9ff;
      border:1px solid var(--line);
      border-radius:999px;
    }
    .nav-link{
      padding:9px 15px;
      border-radius:999px;
      color:#516078;
      font-weight:600;
      font-size:14px;
      transition:var(--ease);
    }
    .nav-link:hover{color:var(--brand);background:#fff;box-shadow:var(--shadow-sm)}
    .nav-link.active{color:#fff;background:var(--brand);box-shadow:0 10px 22px rgba(47,125,246,.22)}
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .search{
      width:210px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:10px 12px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--muted);
      transition:var(--ease);
    }
    .search:focus-within{border-color:rgba(47,125,246,.45);box-shadow:0 0 0 4px rgba(47,125,246,.1)}
    .search svg{width:16px;height:16px;flex:0 0 auto}
    .search input{width:100%;font-size:13px;color:var(--ink);background:transparent}
    .search input::placeholder{color:#96a3b8}
    .entry-btn{
      padding:10px 14px;
      border-radius:999px;
      color:var(--brand);
      background:var(--brand-soft);
      font-weight:700;
      font-size:14px;
      transition:var(--ease);
    }
    .entry-btn:hover{background:#dfeeff;transform:translateY(-1px)}
    .menu-toggle{
      display:none;
      width:42px;height:42px;border-radius:14px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--ink);
      align-items:center;
      justify-content:center;
    }
    .menu-toggle span,.menu-toggle span:before,.menu-toggle span:after{
      width:18px;height:2px;background:currentColor;border-radius:99px;display:block;position:relative;transition:var(--ease)
    }
    .menu-toggle span:before,.menu-toggle span:after{content:"";position:absolute;left:0}
    .menu-toggle span:before{top:-6px}
    .menu-toggle span:after{top:6px}
    .mobile-panel{
      display:none;
      border-top:1px solid var(--line);
      background:#fff;
      padding:14px 0 18px;
    }
    .mobile-panel.open{display:block}
    .mobile-links{display:grid;gap:8px}
    .mobile-links a,.mobile-links button{
      width:100%;
      text-align:left;
      padding:13px 14px;
      border-radius:14px;
      background:var(--brand-pale);
      color:var(--ink);
      font-weight:700;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 18px;
      border-radius:13px;
      font-weight:700;
      transition:var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 14px 28px rgba(47,125,246,.24)}
    .btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:0 18px 36px rgba(47,125,246,.3)}
    .btn-secondary{background:#fff;color:var(--brand);border-color:var(--line-strong)}
    .btn-secondary:hover{background:var(--brand-soft);border-color:rgba(47,125,246,.35);transform:translateY(-2px)}
    .btn-warm{background:var(--orange);color:#fff;box-shadow:0 14px 30px rgba(242,166,74,.24)}
    .btn-warm:hover{background:#e39132;transform:translateY(-2px)}
    .btn:focus-visible,.nav-link:focus-visible,.entry-btn:focus-visible,.menu-toggle:focus-visible{
      outline:3px solid rgba(47,125,246,.24);
      outline-offset:3px;
    }
    main{overflow:hidden}
    .hero{
      padding:82px 0 70px;
      position:relative;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:22px auto auto 52%;
      width:520px;height:520px;
      background:linear-gradient(135deg,rgba(47,125,246,.11),rgba(53,184,216,.08));
      border-radius:44% 56% 52% 48%;
      filter:blur(2px);
      z-index:-1;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.03fr .97fr;
      gap:54px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--line);
      border-radius:999px;
      background:#fff;
      color:var(--brand);
      font-weight:700;
      font-size:13px;
      box-shadow:var(--shadow-sm);
    }
    .eyebrow-dot{
      width:8px;height:8px;border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 5px rgba(24,160,88,.1);
    }
    .hero h1{
      margin-top:22px;
      color:var(--ink);
      font-size:clamp(36px,5vw,52px);
      line-height:1.16;
      letter-spacing:-.045em;
      max-width:720px;
    }
    .hero h1 span{color:var(--brand)}
    .hero-subtitle{
      margin-top:20px;
      max-width:640px;
      font-size:18px;
      line-height:1.78;
      color:#536179;
    }
    .hero-actions{
      margin-top:30px;
      display:flex;
      gap:14px;
      flex-wrap:wrap;
    }
    .trust-line{
      margin-top:18px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      color:var(--muted);
      font-size:14px;
    }
    .trust-line span{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:4px 0;
    }
    .trust-line i{
      width:6px;height:6px;border-radius:50%;
      background:var(--cyan);
      display:inline-block;
    }
    .visual-stage{
      position:relative;
      min-height:520px;
      border-radius:34px;
      background:
        linear-gradient(145deg,#ffffff 0%,#f1f7ff 58%,#ffffff 100%);
      border:1px solid var(--line);
      box-shadow:var(--shadow-lg);
      padding:28px;
      overflow:hidden;
    }
    .visual-stage:before{
      content:"";
      position:absolute;inset:0;
      background-image:
        linear-gradient(rgba(47,125,246,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(47,125,246,.06) 1px,transparent 1px);
      background-size:28px 28px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 88%);
    }
    .hud-top{
      position:relative;
      z-index:1;
      display:flex;
      justify-content:space-between;
      align-items:flex-start;
      gap:14px;
    }
    .scenario-card{
      position:relative;
      z-index:1;
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px;
      box-shadow:var(--shadow-md);
    }
    .scenario-card.main{margin-top:40px}
    .scenario-title{
      display:flex;
      justify-content:space-between;
      gap:12px;
      color:var(--ink);
      font-weight:800;
      margin-bottom:12px;
    }
    .scenario-title small{
      color:var(--success);
      background:rgba(24,160,88,.1);
      border-radius:999px;
      padding:3px 8px;
      font-size:12px;
      white-space:nowrap;
    }
    .bars{display:grid;gap:10px}
    .bar{height:10px;border-radius:999px;background:#edf4ff;overflow:hidden}
    .bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--brand),var(--cyan))}
    .floating-pill{
      position:absolute;
      z-index:2;
      display:flex;
      align-items:center;
      gap:10px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:999px;
      padding:11px 14px;
      box-shadow:var(--shadow-md);
      color:var(--ink);
      font-weight:800;
      font-size:13px;
    }
    .floating-pill em{
      font-style:normal;
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      color:#fff;
      background:var(--brand);
    }
    .pill-a{left:22px;bottom:92px}
    .pill-b{right:24px;bottom:34px}
    .mini-panel{
      position:absolute;
      right:34px;
      top:136px;
      width:210px;
      background:#142033;
      color:#dbe9ff;
      border-radius:22px;
      padding:18px;
      box-shadow:0 24px 46px rgba(20,32,51,.24);
      z-index:2;
    }
    .mini-panel strong{display:block;color:#fff;font-size:25px;line-height:1}
    .mini-panel p{margin-top:8px;font-size:13px;color:#aebbd0;line-height:1.55}
    .section{padding:78px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{
      color:var(--brand);
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
      margin-bottom:8px;
    }
    .section-title{
      color:var(--ink);
      font-size:clamp(28px,3.5vw,40px);
      line-height:1.22;
      letter-spacing:-.035em;
    }
    .section-desc{
      max-width:520px;
      color:var(--muted);
      font-size:16px;
    }
    .service-layout{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
    }
    .service-card{
      background:var(--card);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
      min-height:220px;
    }
    .service-card:hover{transform:translateY(-5px);border-color:rgba(47,125,246,.35);box-shadow:var(--shadow-md)}
    .service-card.wide{
      grid-column:1 / -1;
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      align-items:center;
      gap:20px;
      background:linear-gradient(135deg,#ffffff 0%,#f2f8ff 100%);
    }
    .icon{
      width:48px;height:48px;
      border-radius:16px;
      display:grid;place-items:center;
      background:var(--brand-soft);
      color:var(--brand);
      font-size:22px;
      margin-bottom:18px;
    }
    .service-card h3,.case-card h3,.process-card h3,.entry-card h3{color:var(--ink);font-size:21px;margin-bottom:9px;line-height:1.3}
    .service-card p,.case-card p,.process-card p,.entry-card p{color:var(--muted)}
    .tags{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}
    .tag{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      background:var(--brand-pale);
      border:1px solid var(--line);
      color:#4e6f9f;
      font-size:12px;
      font-weight:700;
    }
    .wide-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .metric-box{
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      padding:18px;
    }
    .metric-box strong{display:block;color:var(--brand);font-size:26px;line-height:1.1}
    .metric-box span{display:block;margin-top:8px;color:var(--muted);font-size:13px}
    .entry-strip{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .entry-card{
      padding:30px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .entry-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
    .entry-card.featured{
      background:linear-gradient(135deg,#f1f7ff,#ffffff);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .arrow-link{
      margin-top:22px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--brand);
      font-weight:800;
      transition:var(--ease);
    }
    .arrow-link:hover{gap:12px;color:var(--brand-strong)}
    .stats-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .stat-card{
      position:relative;
      padding:24px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
      transition:var(--ease);
    }
    .stat-card:after{
      content:"";
      position:absolute;right:-28px;top:-28px;
      width:90px;height:90px;border-radius:30px;
      background:rgba(47,125,246,.08);
      transform:rotate(18deg);
    }
    .stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .stat-card strong{display:block;color:var(--ink);font-size:34px;line-height:1.1;letter-spacing:-.04em}
    .stat-card strong b{color:var(--brand)}
    .stat-card span{display:block;margin-top:10px;color:var(--muted);font-size:14px}
    .cases{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:start;
    }
    .case-feature{
      border-radius:28px;
      padding:30px;
      background:#142033;
      color:#dbe9ff;
      box-shadow:0 26px 60px rgba(20,32,51,.18);
      min-height:450px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      position:relative;
      overflow:hidden;
    }
    .case-feature:before{
      content:"";
      position:absolute;
      width:260px;height:260px;border-radius:50%;
      background:rgba(47,125,246,.32);
      right:-88px;top:-88px;
      filter:blur(4px);
    }
    .case-feature h3{position:relative;color:#fff;font-size:28px;line-height:1.3;margin-top:16px}
    .case-feature p{position:relative;color:#b7c4d9;margin-top:12px}
    .case-stamp{
      position:relative;
      display:inline-flex;
      width:max-content;
      padding:7px 11px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.16);
      border-radius:999px;
      font-size:13px;
      color:#e8f1ff;
    }
    .case-list{display:grid;gap:18px}
    .case-card{
      display:grid;
      grid-template-columns:148px 1fr;
      gap:20px;
      padding:18px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(47,125,246,.35)}
    .case-cover{
      min-height:132px;
      border-radius:18px;
      background:
        linear-gradient(135deg,rgba(47,125,246,.18),rgba(53,184,216,.12)),
        repeating-linear-gradient(45deg,rgba(255,255,255,.55) 0 8px,rgba(255,255,255,.15) 8px 16px);
      display:flex;
      align-items:flex-end;
      padding:14px;
      color:var(--brand);
      font-weight:800;
      font-size:13px;
    }
    .case-meta{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 12px}
    .case-meta span{
      font-size:12px;
      color:#667790;
      background:#f4f8fe;
      border:1px solid var(--line);
      border-radius:999px;
      padding:3px 9px;
    }
    .process-wrap{
      background:linear-gradient(135deg,#f3f8ff,#ffffff);
      border:1px solid var(--line);
      border-radius:32px;
      padding:34px;
      box-shadow:var(--shadow-sm);
    }
    .process-line{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      position:relative;
    }
    .process-line:before{
      content:"";
      position:absolute;
      left:12%;right:12%;top:31px;
      height:2px;
      background:linear-gradient(90deg,rgba(47,125,246,.16),rgba(53,184,216,.28),rgba(47,125,246,.16));
    }
    .process-card{
      position:relative;
      z-index:1;
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:24px;
      box-shadow:var(--shadow-sm);
    }
    .node{
      width:62px;height:62px;border-radius:20px;
      display:grid;place-items:center;
      color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--cyan));
      box-shadow:0 14px 28px rgba(47,125,246,.22);
      font-weight:900;
      margin-bottom:18px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:28px;
      align-items:start;
    }
    .faq-intro{
      background:#fff;
      border:1px solid var(--line);
      border-radius:26px;
      padding:30px;
      box-shadow:var(--shadow-sm);
      position:sticky;
      top:100px;
    }
    .faq-list{display:grid;gap:14px}
    .faq-item{
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:19px 20px;
      color:var(--ink);
      font-weight:800;
      text-align:left;
    }
    .faq-question span:last-child{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:var(--brand-pale);
      color:var(--brand);
      flex:0 0 auto;
      transition:var(--ease);
    }
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      border-top:1px solid transparent;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);background:var(--brand);color:#fff}
    .cta{
      padding:26px 0 86px;
    }
    .cta-card{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:34px;
      align-items:center;
      padding:38px;
      border-radius:34px;
      border:1px solid var(--line);
      background:
        radial-gradient(circle at 8% 15%,rgba(47,125,246,.12),transparent 30%),
        linear-gradient(135deg,#ffffff,#f1f7ff);
      box-shadow:var(--shadow-lg);
    }
    .cta-card h2{
      color:var(--ink);
      font-size:clamp(28px,3.2vw,40px);
      line-height:1.25;
      letter-spacing:-.035em;
    }
    .cta-card p{margin-top:14px;color:var(--muted)}
    .contact-form{
      background:#fff;
      border:1px solid var(--line);
      border-radius:26px;
      padding:24px;
      box-shadow:var(--shadow-sm);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1 / -1}
    .field label{font-size:13px;color:var(--ink);font-weight:800}
    .field input,.field textarea{
      width:100%;
      border:1px solid var(--line);
      background:#fbfdff;
      border-radius:14px;
      padding:12px 13px;
      color:var(--ink);
      transition:var(--ease);
    }
    .field textarea{min-height:108px;resize:vertical}
    .field input:focus,.field textarea:focus{
      border-color:rgba(47,125,246,.55);
      box-shadow:0 0 0 4px rgba(47,125,246,.1);
      background:#fff;
    }
    .form-hint{font-size:12px;color:var(--muted);margin-top:12px}
    .site-footer{
      background:#111b2b;
      color:#c6d2e3;
      padding:54px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .7fr .8fr .9fr;
      gap:30px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand .brand{color:#fff;margin-bottom:14px}
    .footer-brand p{color:#9eacc1;max-width:360px}
    .footer-col h3{
      color:#fff;
      font-size:15px;
      margin-bottom:14px;
    }
    .footer-links{display:grid;gap:9px}
    .footer-links a,.footer-links span{
      color:#aebbd0;
      font-size:14px;
      transition:var(--ease);
    }
    .footer-links a:hover{color:#fff;transform:translateX(2px)}
    .copyright{
      padding-top:22px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:#8d9bb0;
      font-size:13px;
      flex-wrap:wrap;
    }
    .soft-divider{
      height:1px;
      background:linear-gradient(90deg,transparent,var(--line),transparent);
      margin:8px 0;
    }
    @media (max-width:1100px){
      .nav-center,.nav-actions{display:none}
      .menu-toggle{display:flex}
      .hero-grid,.cases,.faq-grid,.cta-card{grid-template-columns:1fr}
      .visual-stage{min-height:460px}
      .stats-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .faq-intro{position:static}
    }
    @media (max-width:820px){
      .container{width:min(100% - 32px,var(--container))}
      .nav{height:68px}
      .brand-text{font-size:15px;max-width:230px;overflow:hidden;text-overflow:ellipsis}
      .hero{padding:54px 0 42px}
      .section{padding:56px 0}
      .section-head{display:block}
      .section-desc{margin-top:12px}
      .service-layout,.entry-strip{grid-template-columns:1fr}
      .service-card.wide{grid-template-columns:1fr}
      .wide-metrics{grid-template-columns:1fr}
      .process-line{grid-template-columns:1fr}
      .process-line:before{display:none}
      .case-card{grid-template-columns:1fr}
      .case-cover{min-height:150px}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .cta-card{padding:26px}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .hero-actions .btn,.cta-card .btn,.contact-form .btn{width:100%}
      .trust-line{display:grid;gap:6px}
      .visual-stage{padding:18px;min-height:420px;border-radius:26px}
      .hud-top{display:grid}
      .mini-panel{position:relative;right:auto;top:auto;width:100%;margin-top:14px}
      .floating-pill{position:relative;left:auto;right:auto;bottom:auto;margin-top:12px;width:100%;justify-content:flex-start}
      .scenario-card.main{margin-top:16px}
      .stats-grid{grid-template-columns:1fr}
      .service-card,.entry-card,.stat-card,.process-wrap,.faq-intro{padding:22px}
      .copyright{display:grid}
    }

/* roulang page: category1 */
:root {
      --color-primary: #2478f2;
      --color-primary-dark: #155fc7;
      --color-primary-soft: #eaf3ff;
      --color-secondary: #28b7d7;
      --color-accent: #f4a742;
      --color-accent-soft: #fff5e6;
      --color-bg: #f7fbff;
      --color-surface: #ffffff;
      --color-surface-blue: #f2f8ff;
      --color-text: #172033;
      --color-muted: #64748b;
      --color-light: #8a9bb2;
      --color-border: #dbe7f5;
      --color-border-strong: #bcd4ef;
      --color-footer: #eef5fd;
      --shadow-sm: 0 8px 22px rgba(29, 78, 137, .07);
      --shadow-md: 0 16px 42px rgba(29, 78, 137, .11);
      --shadow-lg: 0 24px 60px rgba(28, 80, 145, .14);
      --radius-sm: 12px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-xl: 32px;
      --container: 1220px;
      --transition: .22s ease;
      --font: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    }

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

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

    body {
      font-family: var(--font);
      color: var(--color-text);
      background:
        radial-gradient(circle at 7% 2%, rgba(36, 120, 242, .08), transparent 28%),
        radial-gradient(circle at 92% 14%, rgba(40, 183, 215, .08), transparent 30%),
        linear-gradient(180deg, #fbfdff 0%, var(--color-bg) 58%, #ffffff 100%);
      line-height: 1.7;
      font-size: 16px;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

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

    input,
    textarea {
      outline: none;
    }

    ::selection {
      background: rgba(36, 120, 242, .18);
      color: var(--color-text);
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, .94);
      border-bottom: 1px solid rgba(219, 231, 245, .9);
      backdrop-filter: blur(14px);
    }

    .nav {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      min-width: 0;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      color: #fff;
      font-weight: 800;
      background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
      box-shadow: 0 10px 24px rgba(36, 120, 242, .22);
    }

    .brand-text {
      font-size: 17px;
      font-weight: 700;
      letter-spacing: -.02em;
      white-space: nowrap;
      color: #16243a;
    }

    .nav-center {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      flex: 1 1 auto;
    }

    .nav-link {
      padding: 9px 14px;
      border-radius: 999px;
      color: var(--color-muted);
      font-size: 15px;
      font-weight: 600;
    }

    .nav-link:hover,
    .nav-link.active {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
    }

    .search {
      width: 210px;
      height: 42px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0 13px;
      border: 1px solid var(--color-border);
      border-radius: 999px;
      background: #fff;
      color: var(--color-light);
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    .search svg {
      width: 18px;
      height: 18px;
      flex: 0 0 auto;
    }

    .search input {
      width: 100%;
      border: 0;
      color: var(--color-text);
      background: transparent;
      font-size: 14px;
    }

    .search input::placeholder {
      color: #9aa9ba;
    }

    .search:focus-within {
      border-color: rgba(36, 120, 242, .55);
      box-shadow: 0 0 0 4px rgba(36, 120, 242, .1);
    }

    .entry-btn {
      height: 42px;
      padding: 0 15px;
      border-radius: 999px;
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      font-weight: 700;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    }

    .entry-btn:hover {
      transform: translateY(-1px);
      background: #ddebff;
      box-shadow: var(--shadow-sm);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 20px;
      border-radius: 13px;
      font-weight: 700;
      line-height: 1;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), #1f91ff);
      box-shadow: 0 14px 28px rgba(36, 120, 242, .22);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
      box-shadow: 0 18px 36px rgba(36, 120, 242, .28);
    }

    .btn-secondary {
      color: var(--color-primary-dark);
      background: #fff;
      border: 1px solid var(--color-border-strong);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: var(--color-primary-soft);
      border-color: rgba(36, 120, 242, .38);
      box-shadow: var(--shadow-sm);
    }

    .btn-soft {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      border: 1px solid rgba(36, 120, 242, .14);
    }

    .btn-soft:hover {
      background: #dcecff;
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      border: 1px solid var(--color-border);
      background: #fff;
      position: relative;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      position: absolute;
      left: 11px;
      width: 18px;
      height: 2px;
      border-radius: 999px;
      background: var(--color-text);
      content: "";
      transition: transform var(--transition), top var(--transition), opacity var(--transition);
    }

    .menu-toggle span {
      top: 20px;
    }

    .menu-toggle span::before {
      left: 0;
      top: -6px;
    }

    .menu-toggle span::after {
      left: 0;
      top: 6px;
    }

    .menu-toggle.is-open span {
      transform: rotate(45deg);
    }

    .menu-toggle.is-open span::before {
      top: 0;
      opacity: 0;
    }

    .menu-toggle.is-open span::after {
      top: 0;
      transform: rotate(-90deg);
    }

    .mobile-panel {
      display: none;
      border-top: 1px solid var(--color-border);
      background: rgba(255, 255, 255, .98);
    }

    .mobile-links {
      padding: 14px 0 18px;
      display: grid;
      gap: 10px;
    }

    .mobile-links a,
    .mobile-links button {
      width: 100%;
      padding: 13px 14px;
      text-align: left;
      border-radius: 14px;
      color: var(--color-text);
      background: var(--color-surface-blue);
      font-weight: 700;
    }

    .mobile-links a.active {
      color: var(--color-primary-dark);
      background: #dcecff;
    }

    .main {
      overflow: hidden;
    }

    .crumb-section {
      padding: 34px 0 0;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      color: var(--color-muted);
      font-size: 14px;
      margin-bottom: 18px;
    }

    .breadcrumb a {
      color: var(--color-primary-dark);
      font-weight: 700;
    }

    .breadcrumb span {
      color: var(--color-light);
    }

    .category-head {
      position: relative;
      padding: 34px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(188, 212, 239, .72);
      background:
        linear-gradient(135deg, rgba(255,255,255,.96), rgba(242,248,255,.92)),
        radial-gradient(circle at 88% 18%, rgba(40, 183, 215, .16), transparent 34%);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .category-head::after {
      content: "";
      position: absolute;
      right: -58px;
      bottom: -72px;
      width: 260px;
      height: 260px;
      border-radius: 68px;
      background: linear-gradient(135deg, rgba(36, 120, 242, .12), rgba(244, 167, 66, .12));
      transform: rotate(18deg);
    }

    .head-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      align-items: end;
      gap: 28px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 6px 12px;
      border-radius: 999px;
      border: 1px solid rgba(36, 120, 242, .18);
      background: #fff;
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .02em;
      margin-bottom: 14px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--color-secondary);
      box-shadow: 0 0 0 5px rgba(40, 183, 215, .12);
    }

    h1 {
      max-width: 820px;
      font-size: clamp(32px, 4.2vw, 48px);
      line-height: 1.18;
      letter-spacing: -.04em;
      color: #11213a;
      margin-bottom: 16px;
    }

    .lead {
      max-width: 760px;
      color: var(--color-muted);
      font-size: 17px;
      line-height: 1.8;
    }

    .head-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .metric-mini {
      min-height: 96px;
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 255, 255, .86);
      border: 1px solid rgba(219, 231, 245, .9);
      box-shadow: var(--shadow-sm);
    }

    .metric-mini strong {
      display: block;
      color: var(--color-primary-dark);
      font-size: 26px;
      line-height: 1.1;
      margin-bottom: 7px;
    }

    .metric-mini span {
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 600;
    }

    .section {
      padding: 72px 0;
    }

    .section.compact {
      padding-top: 54px;
    }

    .section-title {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 26px;
    }

    .section-title h2 {
      font-size: clamp(25px, 3vw, 34px);
      line-height: 1.25;
      letter-spacing: -.03em;
      color: #13223a;
    }

    .section-title p {
      max-width: 520px;
      color: var(--color-muted);
    }

    .tag-bar {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      padding: 16px;
      border-radius: 22px;
      border: 1px solid var(--color-border);
      background: rgba(255, 255, 255, .82);
      box-shadow: var(--shadow-sm);
      margin-top: 22px;
    }

    .filter-label {
      color: var(--color-text);
      font-weight: 800;
      margin-right: 2px;
      font-size: 14px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 34px;
      padding: 0 13px;
      border-radius: 999px;
      color: var(--color-muted);
      background: #fff;
      border: 1px solid var(--color-border);
      font-size: 14px;
      font-weight: 700;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
    }

    .tag:hover,
    .tag.active {
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      border-color: rgba(36, 120, 242, .28);
      transform: translateY(-1px);
    }

    .layout-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 24px;
      align-items: start;
    }

    .content-list {
      display: grid;
      gap: 18px;
    }

    .solution-card {
      position: relative;
      display: grid;
      grid-template-columns: 210px minmax(0, 1fr);
      gap: 22px;
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      background: rgba(255, 255, 255, .94);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .solution-card:hover {
      transform: translateY(-4px);
      border-color: rgba(36, 120, 242, .35);
      box-shadow: var(--shadow-lg);
    }

    .solution-card.featured {
      grid-template-columns: 260px minmax(0, 1fr);
      padding: 26px;
      background:
        linear-gradient(135deg, #ffffff, #f5faff 74%),
        radial-gradient(circle at 0 0, rgba(36, 120, 242, .1), transparent 28%);
    }

    .visual-panel {
      min-height: 178px;
      border-radius: 20px;
      border: 1px solid rgba(188, 212, 239, .85);
      background:
        linear-gradient(135deg, rgba(36, 120, 242, .14), rgba(40, 183, 215, .1)),
        repeating-linear-gradient(135deg, rgba(255,255,255,.48) 0 8px, rgba(255,255,255,.18) 8px 16px);
      position: relative;
      overflow: hidden;
    }

    .visual-panel::before {
      content: "";
      position: absolute;
      left: 24px;
      top: 24px;
      width: 58px;
      height: 58px;
      border-radius: 18px;
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .visual-panel::after {
      content: "";
      position: absolute;
      right: 22px;
      bottom: 22px;
      width: 118px;
      height: 70px;
      border-radius: 18px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(255,255,255,.82);
      box-shadow: var(--shadow-sm);
    }

    .card-body {
      min-width: 0;
    }

    .card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 10px;
    }

    .status {
      display: inline-flex;
      align-items: center;
      padding: 5px 10px;
      border-radius: 999px;
      background: var(--color-accent-soft);
      color: #a46210;
      font-size: 12px;
      font-weight: 800;
      white-space: nowrap;
    }

    .solution-card h3 {
      font-size: 22px;
      line-height: 1.3;
      color: #13223a;
      margin-bottom: 9px;
    }

    .solution-card p {
      color: var(--color-muted);
      margin-bottom: 16px;
    }

    .meta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 18px;
    }

    .meta-pill {
      padding: 6px 10px;
      border-radius: 999px;
      color: #34506f;
      background: #f3f8ff;
      border: 1px solid #e2edf9;
      font-size: 13px;
      font-weight: 700;
    }

    .card-actions {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      border-top: 1px solid var(--color-border);
      padding-top: 16px;
    }

    .result {
      color: var(--color-muted);
      font-size: 14px;
    }

    .result strong {
      color: var(--color-primary-dark);
      font-weight: 900;
    }

    .arrow-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--color-primary-dark);
      font-weight: 800;
      white-space: nowrap;
    }

    .arrow-link span {
      transition: transform var(--transition);
    }

    .solution-card:hover .arrow-link span {
      transform: translateX(4px);
    }

    .sidebar {
      display: grid;
      gap: 18px;
      position: sticky;
      top: 96px;
    }

    .side-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      background: rgba(255, 255, 255, .94);
      box-shadow: var(--shadow-sm);
    }

    .side-card.highlight {
      color: #fff;
      border-color: transparent;
      background:
        linear-gradient(145deg, #1e5fd2, #238fe8),
        radial-gradient(circle at 80% 0, rgba(255,255,255,.22), transparent 30%);
      box-shadow: 0 20px 46px rgba(36, 120, 242, .24);
    }

    .side-card h3 {
      font-size: 18px;
      margin-bottom: 12px;
      color: #13223a;
    }

    .side-card.highlight h3,
    .side-card.highlight p,
    .side-card.highlight li {
      color: #fff;
    }

    .side-card p {
      color: var(--color-muted);
      font-size: 14px;
      margin-bottom: 16px;
    }

    .topic-list {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .topic-list li {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
      padding: 12px;
      border-radius: 14px;
      background: var(--color-surface-blue);
      color: #34506f;
      font-size: 14px;
      font-weight: 700;
    }

    .topic-list li span {
      color: var(--color-light);
      font-weight: 700;
      white-space: nowrap;
    }

    .side-card.highlight .topic-list li {
      background: rgba(255,255,255,.14);
      color: #fff;
    }

    .side-card.highlight .topic-list li span {
      color: rgba(255,255,255,.76);
    }

    .check-list {
      list-style: none;
      display: grid;
      gap: 11px;
    }

    .check-list li {
      position: relative;
      padding-left: 27px;
      color: var(--color-muted);
      font-size: 14px;
    }

    .check-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      width: 19px;
      height: 19px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      color: #fff;
      background: var(--color-secondary);
      font-size: 12px;
      font-weight: 900;
    }

    .path-board {
      padding: 30px;
      border-radius: var(--radius-xl);
      border: 1px solid var(--color-border);
      background: #fff;
      box-shadow: var(--shadow-md);
    }

    .path-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      margin-top: 22px;
    }

    .path-step {
      position: relative;
      padding: 22px 18px;
      min-height: 184px;
      border-radius: 22px;
      background: linear-gradient(180deg, #ffffff, #f4f9ff);
      border: 1px solid var(--color-border);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .path-step:hover {
      transform: translateY(-3px);
      border-color: rgba(36, 120, 242, .32);
      box-shadow: var(--shadow-sm);
    }

    .path-step b {
      width: 38px;
      height: 38px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      color: #fff;
      background: var(--color-primary);
      margin-bottom: 18px;
      box-shadow: 0 10px 22px rgba(36, 120, 242, .2);
    }

    .path-step h3 {
      font-size: 17px;
      margin-bottom: 8px;
      color: #13223a;
    }

    .path-step p {
      color: var(--color-muted);
      font-size: 14px;
    }

    .comparison {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

    .compare-card {
      padding: 26px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .compare-card strong {
      display: inline-flex;
      margin-bottom: 12px;
      padding: 6px 11px;
      border-radius: 999px;
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      font-size: 13px;
    }

    .compare-card h3 {
      font-size: 21px;
      margin-bottom: 12px;
      color: #13223a;
    }

    .compare-card p {
      color: var(--color-muted);
      margin-bottom: 16px;
    }

    .compare-card.dark {
      color: #fff;
      background:
        linear-gradient(145deg, #172033, #1d3c66),
        radial-gradient(circle at 20% 0, rgba(40, 183, 215, .28), transparent 34%);
      border-color: rgba(255,255,255,.12);
    }

    .compare-card.dark h3,
    .compare-card.dark p,
    .compare-card.dark .check-list li {
      color: #fff;
    }

    .compare-card.dark strong {
      color: #dff3ff;
      background: rgba(255,255,255,.14);
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: 360px minmax(0, 1fr);
      gap: 28px;
      align-items: start;
    }

    .faq-intro {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, #ffffff, #f3f9ff);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
    }

    .faq-intro h2 {
      font-size: 30px;
      line-height: 1.25;
      margin-bottom: 12px;
      color: #13223a;
    }

    .faq-intro p {
      color: var(--color-muted);
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: 18px;
      background: #fff;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 22px;
      color: var(--color-text);
      font-weight: 800;
      text-align: left;
    }

    .faq-question i {
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      color: var(--color-primary-dark);
      background: var(--color-primary-soft);
      font-style: normal;
      flex: 0 0 auto;
      transition: transform var(--transition);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      color: var(--color-muted);
      border-top: 1px solid var(--color-border);
    }

    .faq-item.is-open .faq-answer {
      display: block;
      padding-top: 16px;
    }

    .faq-item.is-open .faq-question i {
      transform: rotate(45deg);
    }

    .cta-block {
      position: relative;
      padding: 34px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(36, 120, 242, .18);
      background:
        linear-gradient(135deg, #edf6ff, #ffffff 62%),
        radial-gradient(circle at 92% 50%, rgba(244, 167, 66, .18), transparent 30%);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .cta-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 420px;
      gap: 28px;
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .cta-block h2 {
      font-size: clamp(27px, 3vw, 38px);
      line-height: 1.25;
      margin-bottom: 14px;
      color: #13223a;
    }

    .cta-block p {
      color: var(--color-muted);
      max-width: 620px;
      margin-bottom: 20px;
    }

    .contact-form {
      padding: 22px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .9);
      border: 1px solid rgba(188, 212, 239, .8);
      box-shadow: var(--shadow-sm);
      display: grid;
      gap: 14px;
    }

    .field {
      display: grid;
      gap: 7px;
    }

    .field label {
      color: #263854;
      font-size: 14px;
      font-weight: 800;
    }

    .field input,
    .field textarea {
      width: 100%;
      border: 1px solid var(--color-border);
      border-radius: 14px;
      background: #fff;
      color: var(--color-text);
      padding: 12px 13px;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .field textarea {
      min-height: 92px;
      resize: vertical;
    }

    .field input:focus,
    .field textarea:focus {
      border-color: rgba(36, 120, 242, .6);
      box-shadow: 0 0 0 4px rgba(36, 120, 242, .1);
    }

    .form-note {
      color: var(--color-light);
      font-size: 13px;
    }

    .site-footer {
      margin-top: 72px;
      padding: 54px 0 26px;
      background: var(--color-footer);
      border-top: 1px solid var(--color-border);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(260px, 1.4fr) .7fr .8fr 1fr;
      gap: 34px;
      padding-bottom: 34px;
    }

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

    .footer-col h3 {
      font-size: 16px;
      margin-bottom: 14px;
      color: #13223a;
    }

    .footer-links {
      display: grid;
      gap: 9px;
      color: var(--color-muted);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--color-primary-dark);
      transform: translateX(2px);
    }

    .footer-links span {
      color: var(--color-muted);
    }

    .copyright {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-top: 22px;
      border-top: 1px solid rgba(188, 212, 239, .72);
      color: var(--color-light);
      font-size: 13px;
    }

    @media (max-width: 1100px) {
      .nav-center,
      .nav-actions {
        display: none;
      }

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

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

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

      .sidebar {
        position: static;
        grid-template-columns: repeat(2, 1fr);
      }

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

      .faq-wrap {
        grid-template-columns: 1fr;
      }

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

    @media (max-width: 768px) {
      .container {
        width: min(calc(100% - 28px), var(--container));
      }

      .nav {
        height: 68px;
      }

      .brand-mark {
        width: 36px;
        height: 36px;
        border-radius: 12px;
      }

      .brand-text {
        font-size: 15px;
        max-width: calc(100vw - 130px);
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .crumb-section {
        padding-top: 22px;
      }

      .category-head {
        padding: 24px 20px;
        border-radius: 24px;
      }

      .head-metrics {
        grid-template-columns: 1fr 1fr;
      }

      .section {
        padding: 54px 0;
      }

      .section-title {
        display: grid;
        gap: 10px;
      }

      .solution-card,
      .solution-card.featured {
        grid-template-columns: 1fr;
        padding: 20px;
      }

      .visual-panel {
        min-height: 150px;
      }

      .card-actions {
        align-items: flex-start;
        flex-direction: column;
      }

      .sidebar,
      .comparison {
        grid-template-columns: 1fr;
      }

      .path-board {
        padding: 22px;
      }

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

      .cta-block {
        padding: 24px 20px;
      }

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

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

    @media (max-width: 520px) {
      body {
        font-size: 15px;
      }

      h1 {
        font-size: 30px;
      }

      .lead {
        font-size: 16px;
      }

      .head-metrics {
        grid-template-columns: 1fr;
      }

      .tag-bar {
        padding: 12px;
      }

      .tag {
        width: 100%;
        justify-content: flex-start;
      }

      .btn {
        width: 100%;
      }

      .solution-card h3 {
        font-size: 20px;
      }

      .faq-question {
        padding: 18px;
      }

      .faq-answer {
        padding-left: 18px;
        padding-right: 18px;
      }
    }