/* roulang page: index */
:root{
      --primary:#12B8A6;
      --primary-2:#16A085;
      --deep:#123B3A;
      --secondary:#7C6FF0;
      --accent:#FF8A5B;
      --bg:#F5FAF8;
      --bg-2:#F7F8FB;
      --white:#FFFFFF;
      --text:#1F2A2E;
      --muted:#617174;
      --weak:#8A9799;
      --border:#DCEDEA;
      --border-soft:rgba(18,184,166,.18);
      --shadow:0 18px 50px rgba(18,59,58,.10);
      --shadow-hover:0 26px 70px rgba(18,59,58,.16);
      --radius-sm:10px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:40px;
      --container:1200px;
      --ease:220ms ease;
      --gradient:linear-gradient(135deg,#12B8A6 0%,#7C6FF0 52%,#FF8A5B 120%);
      --soft-gradient:radial-gradient(circle at 20% 20%,rgba(18,184,166,.18),transparent 32%),radial-gradient(circle at 80% 10%,rgba(124,111,240,.15),transparent 30%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
      color:var(--text);
      background:var(--bg);
      line-height:1.75;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(18,184,166,.22);color:var(--deep)}
    .container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
    .skip-link{position:absolute;left:-999px;top:16px;background:var(--deep);color:#fff;padding:10px 16px;border-radius:999px;z-index:999}
    .skip-link:focus{left:18px}
    .site-header{
      position:sticky;
      top:0;
      z-index:80;
      background:rgba(255,255,255,.92);
      border-bottom:1px solid rgba(220,237,234,.75);
      box-shadow:0 8px 26px rgba(18,59,58,.05);
      backdrop-filter:blur(12px);
    }
    .nav{
      min-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;
    }
    .brand-mark{
      width:46px;height:46px;border-radius:16px;
      background:var(--gradient);
      box-shadow:0 12px 28px rgba(18,184,166,.24);
      position:relative;
      overflow:hidden;
      flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      width:24px;height:14px;
      left:10px;top:17px;
      border-radius:14px 14px 10px 10px;
      background:rgba(255,255,255,.9);
      box-shadow:11px -5px 0 -2px rgba(255,255,255,.85);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:9px;
      border:2px solid rgba(255,255,255,.55);
      border-radius:12px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:18px;color:var(--deep);letter-spacing:.2px}
    .brand-text span{font-size:12px;color:var(--muted)}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .nav-links a{
      position:relative;
      padding:9px 14px;
      border-radius:999px;
      font-size:15px;
      font-weight:700;
      color:var(--deep);
      transition:color var(--ease),background var(--ease),transform var(--ease);
      white-space:nowrap;
    }
    .nav-links a:hover,.nav-links a:focus-visible{
      color:var(--primary-2);
      background:rgba(18,184,166,.09);
      outline:none;
    }
    .nav-links a.active{
      color:var(--primary-2);
      background:rgba(18,184,166,.13);
    }
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:50px;
      padding:13px 24px;
      border-radius:999px;
      font-weight:800;
      font-size:15px;
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease),color var(--ease);
      text-align:center;
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:var(--gradient);
      box-shadow:0 14px 30px rgba(18,184,166,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(18,184,166,.34)}
    .btn-secondary{
      color:var(--deep);
      background:#fff;
      border:1px solid var(--border);
    }
    .btn-secondary:hover{background:#F0FFFB;border-color:rgba(18,184,166,.45);transform:translateY(-2px)}
    .btn-light{
      color:#fff;
      background:rgba(255,255,255,.14);
      border:1px solid rgba(255,255,255,.35);
    }
    .btn-light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
    .btn:focus-visible,.tag:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(255,138,91,.36);outline-offset:3px}
    .mobile-menu{display:none;background:#fff;border:1px solid var(--border);border-radius:14px;padding:9px;color:var(--deep)}
    main{overflow:hidden}
    .hero{
      position:relative;
      padding:88px 0 38px;
      background:
        linear-gradient(180deg,rgba(245,250,248,.92),rgba(245,250,248,.98)),
        var(--soft-gradient),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:auto -120px 0 auto;
      width:420px;height:420px;
      background:radial-gradient(circle,rgba(255,138,91,.16),transparent 65%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:1.04fr .96fr;
      gap:48px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 13px;
      border:1px solid var(--border-soft);
      border-radius:999px;
      background:rgba(255,255,255,.76);
      color:var(--primary-2);
      font-weight:800;
      font-size:14px;
      box-shadow:0 8px 24px rgba(18,59,58,.05);
    }
    .eyebrow i{
      width:9px;height:9px;border-radius:50%;
      background:var(--gradient);
      box-shadow:0 0 0 5px rgba(18,184,166,.12);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      margin:22px 0 20px;
      color:var(--deep);
      font-size:clamp(38px,5vw,62px);
      line-height:1.12;
      letter-spacing:-1.8px;
    }
    .hero-lead{
      max-width:690px;
      color:var(--muted);
      font-size:18px;
      line-height:1.82;
      margin-bottom:28px;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
    .trust-note{
      margin-top:17px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:14px;
    }
    .trust-note span{display:inline-flex;align-items:center;gap:7px}
    .trust-note span:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
    .dashboard{
      position:relative;
      border-radius:var(--radius-xl);
      padding:22px;
      background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(255,255,255,.72));
      border:1px solid rgba(255,255,255,.78);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .dashboard:before{
      content:"";
      position:absolute;inset:0;
      background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.12;
      pointer-events:none;
    }
    .dash-inner{position:relative;border-radius:30px;background:#fff;padding:22px;border:1px solid var(--border-soft)}
    .dash-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}
    .dash-title strong{display:block;color:var(--deep);font-size:20px}
    .dash-title span{font-size:13px;color:var(--weak)}
    .status-pill{padding:7px 11px;border-radius:999px;background:rgba(18,184,166,.11);color:var(--primary-2);font-weight:800;font-size:13px}
    .metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
    .metric{
      padding:16px;
      border-radius:22px;
      background:linear-gradient(180deg,#fff,#F6FCFA);
      border:1px solid var(--border-soft);
    }
    .metric b{display:block;font-size:28px;line-height:1.1;color:var(--deep)}
    .metric span{font-size:13px;color:var(--muted)}
    .chart-card{
      padding:18px;
      border-radius:24px;
      background:linear-gradient(135deg,rgba(18,184,166,.11),rgba(124,111,240,.11));
      border:1px solid rgba(124,111,240,.16);
    }
    .chart-row{display:flex;align-items:center;gap:10px;margin:12px 0}
    .chart-row span{width:88px;font-size:13px;color:var(--muted)}
    .bar{height:10px;border-radius:999px;background:rgba(18,59,58,.08);flex:1;overflow:hidden}
    .bar i{display:block;height:100%;border-radius:999px;background:var(--gradient)}
    .floating-badge{
      position:absolute;
      right:18px;
      bottom:20px;
      padding:12px 14px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:0 14px 32px rgba(18,59,58,.12);
      color:var(--deep);
      font-weight:900;
      font-size:14px;
    }
    .section{padding:92px 0}
    .section.alt{background:var(--bg-2)}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:28px;
      margin-bottom:34px;
    }
    .section-kicker{color:var(--primary-2);font-weight:900;margin-bottom:8px;font-size:14px}
    h2{
      color:var(--deep);
      font-size:clamp(30px,3.8vw,42px);
      line-height:1.22;
      letter-spacing:-.8px;
      margin-bottom:12px;
    }
    .section-desc{max-width:650px;color:var(--muted);font-size:17px;margin-bottom:0}
    .data-strip{
      margin-top:38px;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      padding:18px;
      border-radius:30px;
      background:rgba(255,255,255,.82);
      border:1px solid var(--border-soft);
      box-shadow:var(--shadow);
    }
    .data-item{
      display:flex;
      align-items:center;
      gap:12px;
      padding:18px;
      border-radius:22px;
      background:#fff;
      border:1px solid rgba(220,237,234,.7);
    }
    .data-dot{
      width:38px;height:38px;border-radius:14px;
      background:linear-gradient(135deg,rgba(18,184,166,.18),rgba(124,111,240,.18));
      position:relative;flex:0 0 auto;
    }
    .data-dot:after{content:"";position:absolute;inset:12px;border-radius:50%;background:var(--gradient)}
    .data-item strong{display:block;color:var(--deep);line-height:1.25}
    .data-item span{display:block;color:var(--weak);font-size:13px;margin-top:3px}
    .mosaic{
      display:grid;
      grid-template-columns:1.15fr .85fr .85fr;
      grid-auto-rows:minmax(190px,auto);
      gap:18px;
    }
    .card{
      position:relative;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(18,184,166,.12);
      box-shadow:0 12px 34px rgba(18,59,58,.07);
      padding:26px;
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
      overflow:hidden;
    }
    .card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(18,184,166,.35)}
    .card.feature-large{grid-row:span 2;min-height:398px;background:linear-gradient(180deg,#fff,#F1FFFB)}
    .card:after{
      content:"Scope";
      position:absolute;
      right:18px;top:16px;
      color:rgba(18,184,166,.08);
      font-weight:900;
      font-size:38px;
      letter-spacing:-1px;
      pointer-events:none;
    }
    .icon{
      width:52px;height:52px;border-radius:18px;background:var(--gradient);
      box-shadow:0 12px 28px rgba(18,184,166,.2);
      margin-bottom:18px;
      display:flex;align-items:center;justify-content:center;
      color:#fff;font-weight:900;
    }
    .card h3{font-size:22px;line-height:1.35;color:var(--deep);margin-bottom:10px}
    .card p{color:var(--muted);margin-bottom:18px}
    .text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary-2);font-weight:900}
    .text-link:hover{text-decoration:underline}
    .tag-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:6px 12px;
      border-radius:999px;
      border:1px solid var(--border-soft);
      background:rgba(255,255,255,.72);
      color:var(--primary-2);
      font-weight:800;
      font-size:13px;
      transition:var(--ease);
    }
    .tag:hover{border-color:rgba(18,184,166,.48);background:#F0FFFB}
    .category-entry{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:center;
      padding:24px;
      border-radius:32px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:var(--shadow);
    }
    .category-entry img{height:310px;width:100%;object-fit:cover;border-radius:26px;background:linear-gradient(135deg,rgba(18,184,166,.2),rgba(124,111,240,.2))}
    .category-copy h3{font-size:28px;color:var(--deep);line-height:1.25;margin-bottom:12px}
    .category-copy p{color:var(--muted)}
    .scenario-flow{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .scenario-flow:before{
      content:"";
      position:absolute;
      top:36px;left:8%;right:8%;
      height:2px;
      background:linear-gradient(90deg,rgba(18,184,166,.2),rgba(124,111,240,.35),rgba(255,138,91,.22));
    }
    .scenario{
      position:relative;
      padding:24px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:0 12px 34px rgba(18,59,58,.06);
    }
    .num{
      width:54px;height:54px;border-radius:20px;
      background:var(--gradient);
      color:#fff;
      display:flex;align-items:center;justify-content:center;
      font-weight:900;
      margin-bottom:18px;
      box-shadow:0 12px 26px rgba(18,184,166,.22);
    }
    .scenario h3{font-size:20px;color:var(--deep);margin-bottom:8px}
    .scenario dl{margin:0}
    .scenario dt{font-weight:900;color:var(--deep);margin-top:10px}
    .scenario dd{margin:2px 0 0;color:var(--muted);font-size:15px}
    .case-grid{
      display:grid;
      grid-template-columns:1.35fr .65fr;
      gap:18px;
    }
    .case-main{
      display:grid;
      grid-template-columns:1fr .9fr;
      gap:22px;
      align-items:center;
      padding:26px;
      border-radius:32px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:var(--shadow);
    }
    .case-main img,.case-small img{width:100%;height:280px;object-fit:cover;border-radius:26px;background:#ECF8F4}
    .case-copy h3{font-size:28px;line-height:1.25;color:var(--deep)}
    .case-copy p{color:var(--muted)}
    .case-side{display:grid;gap:18px}
    .case-small{
      padding:22px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:0 12px 34px rgba(18,59,58,.06);
    }
    .case-small img{height:132px;margin-bottom:14px}
    .case-small h3{font-size:19px;color:var(--deep);margin-bottom:6px}
    .case-small p{font-size:15px;color:var(--muted);margin-bottom:0}
    .plans{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      align-items:stretch;
    }
    .plan{
      position:relative;
      padding:28px;
      border-radius:30px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:0 12px 34px rgba(18,59,58,.06);
      overflow:hidden;
      transition:var(--ease);
    }
    .plan:before{content:"";position:absolute;left:0;right:0;top:0;height:6px;background:linear-gradient(90deg,rgba(18,184,166,.65),rgba(124,111,240,.7))}
    .plan.recommend{transform:scale(1.035);box-shadow:var(--shadow);border-color:rgba(18,184,166,.38)}
    .plan:hover{transform:translateY(-5px)}
    .plan.recommend:hover{transform:scale(1.035) translateY(-5px)}
    .recommend-badge{
      position:absolute;right:22px;top:20px;
      padding:6px 11px;border-radius:999px;
      background:rgba(255,138,91,.13);color:#D45D32;
      font-weight:900;font-size:13px;
    }
    .plan h3{font-size:23px;color:var(--deep);margin-bottom:6px}
    .price{font-size:30px;font-weight:950;color:var(--primary-2);margin:12px 0}
    .plan ul,.check-list{list-style:none;padding:0;margin:18px 0}
    .plan li,.check-list li{
      position:relative;
      padding-left:26px;
      margin:10px 0;
      color:var(--muted);
    }
    .plan li:before,.check-list li:before{
      content:"";
      position:absolute;left:0;top:.65em;
      width:13px;height:13px;border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 0 0 4px rgba(18,184,166,.1);
    }
    .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .faq-item{
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:0 10px 26px rgba(18,59,58,.05);
    }
    .faq-item h3{
      display:flex;
      gap:10px;
      align-items:flex-start;
      font-size:19px;
      color:var(--deep);
      margin-bottom:8px;
    }
    .faq-item h3:before{
      content:"Q";
      width:28px;height:28px;border-radius:10px;background:rgba(18,184,166,.12);
      color:var(--primary-2);
      display:inline-flex;align-items:center;justify-content:center;
      flex:0 0 auto;
      font-size:14px;font-weight:950;
    }
    .faq-item p{color:var(--muted);margin-bottom:0}
    .contact-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:20px;
      align-items:stretch;
    }
    .contact-note{
      border-radius:32px;
      padding:30px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(18,59,58,.92),rgba(18,184,166,.78)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .contact-note h2{color:#fff}
    .contact-note p{color:rgba(255,255,255,.82)}
    .form-card{
      padding:28px;
      border-radius:32px;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:var(--shadow);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px}
    .field.full{grid-column:1/-1}
    label{font-weight:800;color:var(--deep);font-size:14px}
    input,textarea,select{
      width:100%;
      border:1px solid var(--border);
      border-radius:15px;
      background:#fff;
      color:var(--text);
      padding:13px 14px;
      transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    textarea{min-height:112px;resize:vertical}
    input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 5px rgba(18,184,166,.12);outline:none}
    .cta{
      padding:0 0 92px;
      background:var(--bg-2);
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:40px;
      padding:48px;
      color:#fff;
      background:var(--gradient);
      box-shadow:0 26px 70px rgba(18,59,58,.18);
    }
    .cta-box:before{
      content:"";
      position:absolute;inset:0;
      background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.12;
    }
    .cta-content{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta h2{color:#fff;margin-bottom:10px}
    .cta p{color:rgba(255,255,255,.84);max-width:690px;margin-bottom:0}
    .site-footer{
      background:var(--deep);
      color:rgba(255,255,255,.78);
      padding:58px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:34px;
      padding-bottom:30px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand .brand-text strong{color:#fff}
    .footer-brand .brand-text span{color:rgba(255,255,255,.62)}
    .footer-brand p{margin-top:18px;max-width:430px;color:rgba(255,255,255,.7)}
    .footer-col h3{color:#fff;font-size:17px;margin-bottom:12px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:rgba(255,255,255,.72);transition:var(--ease)}
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .copyright{
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
      padding-top:22px;
      color:rgba(255,255,255,.56);
      font-size:14px;
    }
    @media (max-width:1024px){
      .container{width:min(var(--container),calc(100% - 38px))}
      .nav{flex-wrap:wrap;padding:12px 0}
      .nav-links{order:3;width:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:3px}
      .hero{padding-top:64px}
      .hero-grid,.category-entry,.case-main,.contact-wrap{grid-template-columns:1fr}
      .dashboard{max-width:720px;margin-inline:auto}
      .data-strip,.scenario-flow{grid-template-columns:repeat(2,1fr)}
      .mosaic{grid-template-columns:1fr 1fr}
      .card.feature-large{grid-column:1/-1;grid-row:auto}
      .case-grid{grid-template-columns:1fr}
      .plans{grid-template-columns:1fr 1fr}
      .plan.recommend{transform:none}
      .plan.recommend:hover{transform:translateY(-5px)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .brand-text strong{font-size:16px}
      .brand-text span{display:none}
      .nav-cta .btn{display:none}
      .mobile-menu{display:inline-flex}
      .nav-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;overflow:visible}
      .nav-links a{background:#F7FCFA;text-align:center}
      .hero{padding:52px 0 28px}
      .hero-actions .btn{flex:1 1 220px}
      .section{padding:66px 0}
      .section-head{display:block}
      .data-strip,.metric-grid,.mosaic,.scenario-flow,.plans,.faq-grid,.form-grid{grid-template-columns:1fr}
      .scenario-flow:before{display:none}
      .category-entry img{height:250px}
      .case-main img{height:240px}
      .cta{padding-bottom:66px}
      .cta-box{padding:34px 24px;border-radius:30px}
      .cta-content{display:block}
      .cta-actions{margin-top:22px;display:grid;gap:12px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
    }
    @media (max-width:520px){
      .container{width:min(var(--container),calc(100% - 28px))}
      h1{font-size:36px;letter-spacing:-1px}
      h2{font-size:29px}
      .nav{min-height:auto}
      .brand-mark{width:42px;height:42px}
      .nav-links{grid-template-columns:1fr}
      .hero-lead{font-size:16px}
      .hero-actions{display:grid}
      .btn{width:100%;min-height:48px}
      .dashboard,.dash-inner{border-radius:24px}
      .data-item{padding:14px}
      .card,.scenario,.plan,.faq-item,.form-card,.contact-note{border-radius:22px;padding:20px}
      .category-entry{padding:18px;border-radius:24px}
      .case-main{padding:18px;border-radius:24px}
      .floating-badge{position:static;margin-top:14px;display:inline-flex}
    }

/* roulang page: category1 */
:root {
      --primary: #12B8A6;
      --primary-dark: #0E8F82;
      --deep: #123B3A;
      --deep-2: #1B4B49;
      --secondary: #7C6FF0;
      --secondary-soft: rgba(124,111,240,.12);
      --accent: #FF8A5B;
      --accent-soft: rgba(255,138,91,.14);
      --bg: #F5FAF8;
      --bg-2: #F7F8FB;
      --white: #FFFFFF;
      --text: #1F2A2E;
      --muted: #617174;
      --weak: #8A9799;
      --border: #DCEDEA;
      --border-soft: rgba(18,184,166,.18);
      --shadow: 0 18px 50px rgba(18,59,58,.10);
      --shadow-sm: 0 10px 28px rgba(18,59,58,.08);
      --radius-sm: 10px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-xl: 40px;
      --container: 1180px;
      --transition: 220ms ease;
      --gradient: linear-gradient(135deg, #12B8A6 0%, #7C6FF0 52%, #FF8A5B 120%);
      --soft-gradient: radial-gradient(circle at 16% 18%, rgba(18,184,166,.18), transparent 34%), radial-gradient(circle at 88% 12%, rgba(124,111,240,.16), transparent 32%), linear-gradient(180deg, #F5FAF8 0%, #FFFFFF 100%);
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background:
        radial-gradient(circle at 6% 12%, rgba(18,184,166,.08), transparent 26%),
        radial-gradient(circle at 96% 22%, rgba(124,111,240,.08), transparent 24%);
      z-index: -1;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

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

    button {
      border: 0;
      cursor: pointer;
    }

    input,
    textarea {
      width: 100%;
    }

    section {
      position: relative;
    }

    ::selection {
      color: var(--white);
      background: var(--primary);
    }

    .container {
      width: min(100% - 48px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255,255,255,.92);
      border-bottom: 1px solid rgba(220,237,234,.82);
      box-shadow: 0 10px 30px rgba(18,59,58,.05);
      backdrop-filter: blur(12px);
    }

    .nav-wrap {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

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

    .brand-mark {
      position: relative;
      width: 46px;
      height: 46px;
      flex: 0 0 46px;
      border-radius: 17px;
      background: var(--gradient);
      box-shadow: 0 14px 28px rgba(18,184,166,.26);
      overflow: hidden;
    }

    .brand-mark::before {
      content: "";
      position: absolute;
      left: 12px;
      top: 19px;
      width: 24px;
      height: 13px;
      border-radius: 999px;
      background: rgba(255,255,255,.92);
      box-shadow: -7px 3px 0 -1px rgba(255,255,255,.92), 7px -4px 0 -2px rgba(255,255,255,.92);
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px;
      border: 1.8px solid rgba(255,255,255,.62);
      border-radius: 12px;
    }

    .brand-text {
      display: grid;
      line-height: 1.15;
    }

    .brand-text strong {
      color: var(--deep);
      font-size: 18px;
      letter-spacing: .2px;
      font-weight: 800;
    }

    .brand-text span {
      margin-top: 4px;
      color: var(--muted);
      font-size: 12px;
      letter-spacing: .4px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 7px;
      border: 1px solid rgba(220,237,234,.78);
      border-radius: 999px;
      background: rgba(245,250,248,.78);
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 8px 17px;
      color: var(--deep);
      border-radius: 999px;
      font-weight: 700;
      font-size: 14px;
      transition: color var(--transition), background var(--transition), transform var(--transition);
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 6px;
      height: 2px;
      border-radius: 999px;
      background: var(--primary);
      transform: scaleX(0);
      transform-origin: center;
      transition: transform var(--transition);
    }

    .nav-links a:hover {
      color: var(--primary-dark);
      background: rgba(18,184,166,.08);
      transform: translateY(-1px);
    }

    .nav-links a:hover::after,
    .nav-links a.active::after {
      transform: scaleX(1);
    }

    .nav-links a.active {
      color: var(--primary-dark);
      background: rgba(18,184,166,.12);
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-toggle {
      position: absolute;
      opacity: 0;
      pointer-events: none;
    }

    .menu-button {
      display: none;
      width: 46px;
      height: 46px;
      align-items: center;
      justify-content: center;
      border-radius: 16px;
      border: 1px solid var(--border);
      background: var(--white);
      color: var(--deep);
      box-shadow: 0 8px 22px rgba(18,59,58,.06);
      cursor: pointer;
    }

    .menu-button span,
    .menu-button span::before,
    .menu-button span::after {
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 999px;
      background: currentColor;
      transition: transform var(--transition), opacity var(--transition);
    }

    .menu-button span {
      position: relative;
    }

    .menu-button span::before,
    .menu-button span::after {
      content: "";
      position: absolute;
      left: 0;
    }

    .menu-button span::before {
      top: -7px;
    }

    .menu-button span::after {
      top: 7px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 48px;
      padding: 12px 24px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 15px;
      line-height: 1.2;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
      user-select: none;
      white-space: nowrap;
    }

    .btn-primary {
      color: var(--white);
      background: var(--gradient);
      box-shadow: 0 14px 32px rgba(18,184,166,.26);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 42px rgba(18,184,166,.34);
    }

    .btn-secondary {
      color: var(--deep);
      background: var(--white);
      border: 1px solid var(--border);
      box-shadow: 0 10px 24px rgba(18,59,58,.06);
    }

    .btn-secondary:hover {
      color: var(--primary-dark);
      border-color: rgba(18,184,166,.48);
      background: #F0FFFB;
      transform: translateY(-2px);
    }

    .btn-soft {
      color: var(--primary-dark);
      background: rgba(18,184,166,.10);
      border: 1px solid rgba(18,184,166,.18);
    }

    .btn-soft:hover {
      background: rgba(18,184,166,.16);
      transform: translateY(-2px);
    }

    .btn:focus-visible,
    .nav-links a:focus-visible,
    .footer-links a:focus-visible,
    .tag-button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    .menu-button:focus-visible {
      outline: 3px solid rgba(255,138,91,.42);
      outline-offset: 3px;
    }

    .btn:active,
    .nav-links a:active,
    .tag-button:active {
      transform: translateY(0);
    }

    .category-hero {
      isolation: isolate;
      overflow: hidden;
      background: var(--soft-gradient);
    }

    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(90deg, rgba(245,250,248,.92), rgba(245,250,248,.72)),
        url("/assets/images/backpic/back-2.webp");
      background-size: cover;
      background-position: center;
      opacity: .72;
      z-index: -2;
    }

    .category-hero::after {
      content: "";
      position: absolute;
      right: -120px;
      top: 80px;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(124,111,240,.18), transparent 65%);
      z-index: -1;
    }

    .hero-shell {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(330px, .92fr);
      gap: 42px;
      align-items: center;
      min-height: 410px;
      padding: 48px 0 58px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 22px;
      color: var(--muted);
      font-size: 14px;
    }

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

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

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      padding: 7px 12px;
      border: 1px solid rgba(18,184,166,.22);
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(255,255,255,.76);
      font-size: 13px;
      font-weight: 800;
      box-shadow: 0 8px 18px rgba(18,59,58,.05);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--gradient);
      box-shadow: 0 0 0 5px rgba(18,184,166,.12);
    }

    h1,
    h2,
    h3,
    h4,
    p {
      margin-top: 0;
    }

    h1 {
      max-width: 760px;
      margin-bottom: 18px;
      color: var(--deep);
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      letter-spacing: -1.5px;
      font-weight: 900;
    }

    .hero-lead {
      max-width: 690px;
      margin-bottom: 24px;
      color: var(--muted);
      font-size: 18px;
      line-height: 1.85;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 13px;
      margin: 26px 0 20px;
    }

    .hero-note {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .hero-note strong {
      color: var(--deep);
      font-weight: 800;
    }

    .mini-dot {
      width: 5px;
      height: 5px;
      border-radius: 999px;
      background: var(--accent);
    }

    .hero-panel {
      position: relative;
      border-radius: var(--radius-xl);
      padding: 18px;
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(255,255,255,.76);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 12px;
      border: 1px dashed rgba(18,184,166,.28);
      border-radius: 32px;
      pointer-events: none;
    }

    .dashboard-card {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 14px;
    }

    .visual-cover {
      position: relative;
      min-height: 186px;
      overflow: hidden;
      border-radius: 30px;
      background:
        linear-gradient(135deg, rgba(18,184,166,.18), rgba(124,111,240,.14)),
        #EAF8F5;
    }

    .visual-cover img {
      height: 238px;
      object-fit: cover;
      filter: saturate(1.04) contrast(.98);
    }

    .visual-cover.image-fallback {
      background:
        radial-gradient(circle at 18% 20%, rgba(18,184,166,.22), transparent 34%),
        radial-gradient(circle at 80% 12%, rgba(124,111,240,.20), transparent 32%),
        linear-gradient(135deg, #EAF8F5, #F9F6FF);
    }

    .cover-overlay {
      position: absolute;
      inset: auto 16px 16px 16px;
      display: grid;
      gap: 10px;
      padding: 14px;
      border-radius: 22px;
      background: rgba(255,255,255,.90);
      box-shadow: 0 14px 34px rgba(18,59,58,.12);
    }

    .cover-overlay strong {
      color: var(--deep);
      font-size: 18px;
      line-height: 1.35;
    }

    .cover-overlay span {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .badge-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }

    .data-badge {
      padding: 14px 12px;
      border-radius: 20px;
      border: 1px solid rgba(18,184,166,.16);
      background: rgba(255,255,255,.88);
      box-shadow: 0 10px 24px rgba(18,59,58,.06);
    }

    .data-badge strong {
      display: block;
      color: var(--primary-dark);
      font-size: 22px;
      line-height: 1.1;
      font-weight: 900;
    }

    .data-badge span {
      display: block;
      margin-top: 7px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.45;
    }

    .chapter-card {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 14px;
      border-radius: 24px;
      background: linear-gradient(135deg, rgba(18,184,166,.10), rgba(124,111,240,.10));
      border: 1px solid rgba(18,184,166,.16);
    }

    .chapter-progress {
      flex: 1;
      height: 10px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(18,59,58,.08);
    }

    .chapter-progress span {
      display: block;
      width: 72%;
      height: 100%;
      border-radius: inherit;
      background: var(--gradient);
    }

    .chapter-card b {
      color: var(--deep);
      font-size: 14px;
      white-space: nowrap;
    }

    .section {
      padding: 94px 0;
    }

    .section.compact {
      padding: 52px 0 0;
    }

    .section.alt {
      background: linear-gradient(180deg, rgba(255,255,255,.62), rgba(247,248,251,.92));
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      align-items: end;
      margin-bottom: 34px;
    }

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

    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      color: var(--primary-dark);
      font-weight: 900;
      font-size: 13px;
      letter-spacing: .5px;
    }

    .kicker::before {
      content: "";
      width: 22px;
      height: 2px;
      border-radius: 999px;
      background: var(--gradient);
    }

    h2 {
      margin-bottom: 14px;
      color: var(--deep);
      font-size: clamp(28px, 3.5vw, 42px);
      line-height: 1.18;
      letter-spacing: -1px;
      font-weight: 900;
    }

    .section-title p,
    .section-head > p {
      max-width: 650px;
      margin-bottom: 0;
      color: var(--muted);
      font-size: 17px;
    }

    .tag-shell {
      position: relative;
      z-index: 2;
      margin-top: -28px;
      border-radius: 28px;
      padding: 16px;
      background: rgba(255,255,255,.94);
      border: 1px solid rgba(220,237,234,.92);
      box-shadow: var(--shadow-sm);
    }

    .tag-row {
      display: flex;
      align-items: center;
      gap: 10px;
      overflow-x: auto;
      scrollbar-width: none;
      padding-bottom: 2px;
    }

    .tag-row::-webkit-scrollbar {
      display: none;
    }

    .tag-button {
      flex: 0 0 auto;
      min-height: 42px;
      padding: 9px 16px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: var(--white);
      color: var(--deep);
      font-weight: 800;
      font-size: 14px;
      transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
    }

    .tag-button:hover {
      color: var(--primary-dark);
      border-color: rgba(18,184,166,.54);
      background: #F0FFFB;
      transform: translateY(-1px);
    }

    .tag-button.is-active {
      color: var(--white);
      border-color: transparent;
      background: var(--gradient);
      box-shadow: 0 12px 28px rgba(18,184,166,.20);
    }

    .feature-mosaic {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 18px;
    }

    .card {
      position: relative;
      border: 1px solid rgba(18,184,166,.13);
      background: rgba(255,255,255,.86);
      border-radius: var(--radius-lg);
      box-shadow: 0 12px 34px rgba(18,59,58,.07);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
      overflow: hidden;
    }

    .card:hover {
      transform: translateY(-5px);
      border-color: rgba(18,184,166,.38);
      box-shadow: var(--shadow);
      background: var(--white);
    }

    .spotlight-card {
      grid-column: span 7;
      min-height: 100%;
      padding: 0;
    }

    .spotlight-media {
      position: relative;
      min-height: 275px;
      overflow: hidden;
      background:
        linear-gradient(135deg, rgba(18,184,166,.16), rgba(124,111,240,.13)),
        #EAF8F5;
    }

    .spotlight-media img {
      height: 330px;
      object-fit: cover;
    }

    .spotlight-media.image-fallback {
      background:
        radial-gradient(circle at 18% 22%, rgba(18,184,166,.22), transparent 34%),
        radial-gradient(circle at 82% 18%, rgba(124,111,240,.18), transparent 30%),
        linear-gradient(135deg, #EAF8F5, #F9F6FF);
    }

    .media-chip {
      position: absolute;
      left: 18px;
      top: 18px;
      padding: 8px 12px;
      border-radius: 999px;
      color: var(--deep);
      background: rgba(255,255,255,.90);
      border: 1px solid rgba(255,255,255,.76);
      font-size: 13px;
      font-weight: 900;
      box-shadow: 0 10px 22px rgba(18,59,58,.10);
    }

    .spotlight-body {
      padding: 28px;
    }

    .spotlight-body h3 {
      margin-bottom: 12px;
      color: var(--deep);
      font-size: 27px;
      line-height: 1.28;
      font-weight: 900;
    }

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

    .point-list {
      display: grid;
      gap: 12px;
      margin: 0 0 24px;
      padding: 0;
      list-style: none;
    }

    .point-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--text);
      font-weight: 650;
    }

    .point-list li::before {
      content: "";
      flex: 0 0 10px;
      width: 10px;
      height: 10px;
      margin-top: 9px;
      border-radius: 999px;
      background: var(--gradient);
      box-shadow: 0 0 0 5px rgba(18,184,166,.10);
    }

    .mini-card {
      grid-column: span 5;
      padding: 26px;
      display: grid;
      align-content: start;
      gap: 14px;
      min-height: 192px;
    }

    .mini-card.small {
      grid-column: span 4;
      min-height: 178px;
    }

    .icon-tile {
      width: 50px;
      height: 50px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: var(--white);
      background: var(--gradient);
      box-shadow: 0 12px 24px rgba(18,184,166,.20);
      font-size: 20px;
      font-weight: 900;
    }

    .mini-card h3 {
      margin: 0;
      color: var(--deep);
      font-size: 21px;
      line-height: 1.35;
      font-weight: 900;
    }

    .mini-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15.5px;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      color: var(--primary-dark);
      font-weight: 900;
      transition: gap var(--transition), color var(--transition);
    }

    .text-link:hover {
      gap: 12px;
      color: var(--secondary);
    }

    .topic-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.52fr) minmax(310px, .78fr);
      gap: 24px;
      align-items: start;
    }

    .chapter-list {
      display: grid;
      gap: 16px;
    }

    .chapter-item {
      display: grid;
      grid-template-columns: 78px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 18px;
      border-radius: 26px;
      background: rgba(255,255,255,.90);
      border: 1px solid rgba(18,184,166,.12);
      box-shadow: 0 10px 26px rgba(18,59,58,.06);
      transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }

    .chapter-item:hover {
      transform: translateY(-3px);
      border-color: rgba(18,184,166,.34);
      box-shadow: var(--shadow-sm);
    }

    .chapter-num {
      display: grid;
      place-items: center;
      width: 62px;
      height: 62px;
      border-radius: 22px;
      color: var(--white);
      background: var(--deep);
      font-size: 18px;
      font-weight: 900;
    }

    .chapter-content h3 {
      margin-bottom: 5px;
      color: var(--deep);
      font-size: 20px;
      line-height: 1.35;
      font-weight: 900;
    }

    .chapter-content p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .heat-tag {
      flex: 0 0 auto;
      padding: 7px 11px;
      border-radius: 999px;
      color: var(--accent);
      background: var(--accent-soft);
      font-weight: 900;
      font-size: 13px;
    }

    .side-stack {
      display: grid;
      gap: 16px;
      position: sticky;
      top: 100px;
    }

    .side-card {
      padding: 24px;
      border-radius: 28px;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(18,184,166,.14);
      box-shadow: 0 12px 34px rgba(18,59,58,.07);
    }

    .side-card.emphasis {
      color: var(--white);
      background:
        radial-gradient(circle at 16% 10%, rgba(255,255,255,.22), transparent 26%),
        var(--gradient);
      border-color: transparent;
      overflow: hidden;
    }

    .side-card h3 {
      margin-bottom: 14px;
      color: var(--deep);
      font-size: 20px;
      font-weight: 900;
    }

    .side-card.emphasis h3,
    .side-card.emphasis p {
      color: var(--white);
    }

    .side-card p {
      margin-bottom: 18px;
      color: var(--muted);
      font-size: 15px;
    }

    .rank-list {
      display: grid;
      gap: 14px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .rank-list li {
      display: grid;
      gap: 7px;
    }

    .rank-head {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: var(--deep);
      font-size: 14px;
      font-weight: 800;
    }

    .rank-head span:last-child {
      color: var(--primary-dark);
    }

    .rank-bar {
      height: 8px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(18,59,58,.08);
    }

    .rank-bar i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: var(--gradient);
    }

    .keyword-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .keyword-cloud span {
      padding: 7px 11px;
      border-radius: 999px;
      color: var(--deep);
      background: rgba(18,184,166,.08);
      border: 1px solid rgba(18,184,166,.14);
      font-size: 13px;
      font-weight: 800;
    }

    .hint-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .hint-list li {
      display: flex;
      gap: 9px;
      color: rgba(255,255,255,.92);
      font-size: 14px;
    }

    .hint-list li::before {
      content: "·";
      color: var(--white);
      font-weight: 900;
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .scenario-card {
      padding: 24px;
      border-radius: 30px;
      background: rgba(255,255,255,.88);
      border: 1px solid rgba(18,184,166,.13);
      box-shadow: 0 12px 34px rgba(18,59,58,.07);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .scenario-card:hover {
      transform: translateY(-5px);
      border-color: rgba(18,184,166,.34);
      box-shadow: var(--shadow);
    }

    .scenario-no {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 46px;
      height: 46px;
      margin-bottom: 18px;
      border-radius: 17px;
      color: var(--white);
      background: var(--gradient);
      font-weight: 900;
    }

    .scenario-card h3 {
      margin-bottom: 12px;
      color: var(--deep);
      font-size: 20px;
      line-height: 1.35;
      font-weight: 900;
    }

    .scenario-meta {
      display: grid;
      gap: 10px;
    }

    .scenario-meta p {
      margin: 0;
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.65;
    }

    .scenario-meta strong {
      color: var(--deep);
    }

    .flow-shell {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .flow-shell::before {
      content: "";
      position: absolute;
      left: 8%;
      right: 8%;
      top: 46px;
      height: 2px;
      background: linear-gradient(90deg, rgba(18,184,166,.22), rgba(124,111,240,.22), rgba(255,138,91,.22));
    }

    .flow-step {
      position: relative;
      z-index: 1;
      padding: 28px 22px 24px;
      border-radius: 30px;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(18,184,166,.13);
      box-shadow: 0 12px 34px rgba(18,59,58,.07);
      min-height: 240px;
    }

    .step-dot {
      display: grid;
      place-items: center;
      width: 54px;
      height: 54px;
      margin-bottom: 20px;
      border-radius: 20px;
      color: var(--white);
      background: var(--deep);
      box-shadow: 0 14px 28px rgba(18,59,58,.18);
      font-weight: 900;
    }

    .flow-step:nth-child(2) .step-dot {
      background: var(--primary);
    }

    .flow-step:nth-child(3) .step-dot {
      background: var(--secondary);
    }

    .flow-step:nth-child(4) .step-dot {
      background: var(--accent);
    }

    .flow-step h3 {
      margin-bottom: 10px;
      color: var(--deep);
      font-size: 20px;
      line-height: 1.35;
      font-weight: 900;
    }

    .flow-step p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      align-items: stretch;
    }

    .plan-card {
      position: relative;
      display: flex;
      flex-direction: column;
      padding: 28px;
      border-radius: 32px;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(18,184,166,.14);
      box-shadow: 0 12px 34px rgba(18,59,58,.07);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      overflow: hidden;
    }

    .plan-card::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      height: 6px;
      background: linear-gradient(90deg, rgba(18,184,166,.86), rgba(124,111,240,.78));
    }

    .plan-card.recommend {
      transform: translateY(-10px);
      border-color: rgba(18,184,166,.36);
      box-shadow: var(--shadow);
    }

    .plan-card:hover {
      transform: translateY(-6px);
      border-color: rgba(18,184,166,.36);
      box-shadow: var(--shadow);
    }

    .plan-card.recommend:hover {
      transform: translateY(-13px);
    }

    .plan-badge {
      width: fit-content;
      margin-bottom: 15px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(18,184,166,.11);
      font-size: 13px;
      font-weight: 900;
    }

    .plan-card.recommend .plan-badge {
      color: var(--white);
      background: var(--gradient);
      box-shadow: 0 10px 24px rgba(18,184,166,.18);
    }

    .plan-card h3 {
      margin-bottom: 10px;
      color: var(--deep);
      font-size: 24px;
      line-height: 1.3;
      font-weight: 900;
    }

    .plan-price {
      margin: 0 0 18px;
      color: var(--accent);
      font-size: 28px;
      line-height: 1.1;
      font-weight: 950;
    }

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

    .plan-list {
      display: grid;
      gap: 11px;
      margin: 0 0 26px;
      padding: 0;
      list-style: none;
      flex: 1;
    }

    .plan-list li {
      position: relative;
      padding-left: 24px;
      color: var(--text);
      font-size: 15px;
      font-weight: 650;
    }

    .plan-list li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--primary-dark);
      font-weight: 900;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .faq-item {
      padding: 24px;
      border-radius: 28px;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(18,184,166,.13);
      box-shadow: 0 10px 28px rgba(18,59,58,.06);
    }

    .faq-item h3 {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 10px;
      color: var(--deep);
      font-size: 19px;
      line-height: 1.45;
      font-weight: 900;
    }

    .faq-item h3::before {
      content: "Q";
      display: inline-grid;
      place-items: center;
      flex: 0 0 28px;
      width: 28px;
      height: 28px;
      border-radius: 10px;
      color: var(--white);
      background: var(--gradient);
      font-size: 13px;
      line-height: 1;
      font-weight: 900;
      margin-top: 1px;
    }

    .faq-item p {
      margin: 0;
      color: var(--muted);
      line-height: 1.75;
    }

    .contact-cta {
      padding: 0 0 94px;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr);
      gap: 34px;
      align-items: center;
      padding: 40px;
      border-radius: var(--radius-xl);
      color: var(--white);
      background:
        radial-gradient(circle at 18% 16%, rgba(255,255,255,.22), transparent 30%),
        radial-gradient(circle at 88% 10%, rgba(255,138,91,.22), transparent 26%),
        linear-gradient(135deg, #123B3A 0%, #12B8A6 48%, #7C6FF0 115%);
      box-shadow: 0 24px 70px rgba(18,59,58,.20);
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -110px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      border: 34px solid rgba(255,255,255,.08);
    }

    .cta-content {
      position: relative;
      z-index: 1;
    }

    .cta-content h2 {
      color: var(--white);
      margin-bottom: 14px;
    }

    .cta-content p {
      max-width: 620px;
      color: rgba(255,255,255,.86);
      margin-bottom: 24px;
      font-size: 17px;
    }

    .cta-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 28px;
    }

    .cta-badges span {
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.14);
      border: 1px solid rgba(255,255,255,.22);
      color: rgba(255,255,255,.94);
      font-size: 13px;
      font-weight: 800;
    }

    .consult-form {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 13px;
      padding: 22px;
      border-radius: 30px;
      background: rgba(255,255,255,.94);
      box-shadow: 0 16px 42px rgba(18,59,58,.18);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

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

    .field label {
      color: var(--deep);
      font-size: 13px;
      font-weight: 900;
    }

    .field input,
    .field textarea,
    .field select {
      min-height: 46px;
      padding: 12px 14px;
      border-radius: 15px;
      border: 1px solid var(--border);
      background: var(--white);
      color: var(--text);
      transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }

    .field textarea {
      min-height: 96px;
      resize: vertical;
    }

    .field input:focus,
    .field textarea:focus,
    .field select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(18,184,166,.12);
      outline: none;
    }

    .form-note {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
    }

    .site-footer {
      padding: 58px 0 28px;
      background: var(--deep);
      color: rgba(255,255,255,.78);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.35fr) .72fr .88fr;
      gap: 34px;
      align-items: start;
    }

    .footer-brand .brand {
      margin-bottom: 18px;
    }

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

    .footer-brand .brand-text span {
      color: rgba(255,255,255,.62);
    }

    .footer-brand p {
      max-width: 520px;
      margin: 0;
      color: rgba(255,255,255,.70);
      font-size: 15px;
    }

    .footer-col h3 {
      margin: 0 0 14px;
      color: var(--white);
      font-size: 17px;
      font-weight: 900;
    }

    .footer-links {
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      width: fit-content;
      color: rgba(255,255,255,.72);
      font-size: 15px;
      transition: color var(--transition), transform var(--transition);
    }

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

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      margin-top: 40px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.14);
      color: rgba(255,255,255,.56);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .container {
        width: min(100% - 40px, var(--container));
      }

      .hero-shell {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-top: 42px;
      }

      .hero-panel {
        max-width: 720px;
      }

      .section {
        padding: 78px 0;
      }

      .feature-mosaic,
      .topic-layout {
        grid-template-columns: 1fr;
      }

      .spotlight-card,
      .mini-card,
      .mini-card.small {
        grid-column: auto;
      }

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

      .spotlight-card {
        grid-column: span 2;
      }

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

      .side-card.emphasis {
        grid-column: span 2;
      }

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

      .flow-shell::before {
        display: none;
      }

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

      .plan-card.recommend {
        transform: none;
      }

      .plan-card.recommend:hover {
        transform: translateY(-6px);
      }

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

    @media (max-width: 768px) {
      body {
        font-size: 15.5px;
      }

      .container {
        width: min(100% - 36px, var(--container));
      }

      .nav-wrap {
        min-height: 72px;
        flex-wrap: wrap;
        gap: 12px;
        padding: 11px 0;
      }

      .menu-button {
        display: inline-flex;
        margin-left: auto;
      }

      .nav-links,
      .nav-action {
        display: none;
        width: 100%;
      }

      .nav-links {
        order: 4;
        align-items: stretch;
        justify-content: flex-start;
        flex-direction: column;
        padding: 10px;
        border-radius: 22px;
        background: var(--white);
        box-shadow: 0 14px 32px rgba(18,59,58,.08);
      }

      .nav-links a {
        justify-content: flex-start;
        padding-inline: 16px;
      }

      .nav-action {
        order: 5;
      }

      .nav-action .btn {
        width: 100%;
      }

      .nav-toggle:checked ~ .menu-button span {
        background: transparent;
      }

      .nav-toggle:checked ~ .menu-button span::before {
        transform: translateY(7px) rotate(45deg);
      }

      .nav-toggle:checked ~ .menu-button span::after {
        transform: translateY(-7px) rotate(-45deg);
      }

      .nav-toggle:checked ~ .nav-links,
      .nav-toggle:checked ~ .nav-action {
        display: flex;
      }

      .hero-shell {
        min-height: auto;
        padding: 34px 0 52px;
      }

      .hero-lead {
        font-size: 16.5px;
      }

      .hero-actions,
      .cta-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .btn {
        width: 100%;
        white-space: normal;
      }

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

      .section {
        padding: 66px 0;
      }

      .section.compact {
        padding-top: 36px;
      }

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

      .feature-mosaic,
      .scenario-grid,
      .flow-shell,
      .faq-grid,
      .side-stack {
        grid-template-columns: 1fr;
      }

      .spotlight-card,
      .side-card.emphasis {
        grid-column: auto;
      }

      .chapter-item {
        grid-template-columns: 58px 1fr;
      }

      .chapter-item .heat-tag {
        grid-column: 2;
        width: fit-content;
      }

      .chapter-num {
        width: 52px;
        height: 52px;
        border-radius: 18px;
      }

      .form-row {
        grid-template-columns: 1fr;
      }

      .cta-panel {
        padding: 30px 22px;
        border-radius: 30px;
      }

      .copyright {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .brand-mark {
        width: 42px;
        height: 42px;
        flex-basis: 42px;
        border-radius: 15px;
      }

      .brand-text strong {
        font-size: 16px;
      }

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

      h1 {
        font-size: 36px;
        letter-spacing: -1px;
      }

      h2 {
        font-size: 29px;
      }

      .hero-panel,
      .card,
      .side-card,
      .faq-item,
      .plan-card,
      .scenario-card,
      .flow-step,
      .consult-form {
        border-radius: 24px;
      }

      .visual-cover img {
        height: 218px;
      }

      .spotlight-media img {
        height: 245px;
      }

      .spotlight-body,
      .mini-card,
      .side-card,
      .scenario-card,
      .plan-card,
      .faq-item {
        padding: 22px;
      }

      .chapter-item {
        gap: 12px;
        padding: 14px;
      }

      .footer-grid {
        gap: 26px;
      }
    }