/* roulang page: index */
:root{
      --primary:#2563A8;
      --primary-dark:#174C82;
      --primary-soft:#EAF3FB;
      --accent:#C7A76C;
      --accent-soft:#F7EEDC;
      --bg:#F6F9FC;
      --surface:#FFFFFF;
      --text:#172033;
      --muted:#5D6B7C;
      --border:#DDE7F1;
      --footer:#102A43;
      --success:#2E8B73;
      --warn:#B7791F;
      --shadow:0 14px 40px rgba(31,74,118,.08);
      --shadow-strong:0 22px 58px rgba(31,74,118,.14);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1200px;
      --ease:.24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:var(--bg);
      line-height:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;background:none;cursor:pointer}
    :focus-visible{outline:3px solid rgba(37,99,168,.28);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .section{padding:88px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:var(--primary-soft);color:var(--primary-dark);
      font-size:13px;font-weight:700;
      border:1px solid rgba(37,99,168,.12);
    }
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 4px rgba(199,167,108,.16)}
    h1,h2,h3{line-height:1.2;letter-spacing:-.02em}
    h1{font-size:52px;font-weight:850}
    h2{font-size:34px;font-weight:820}
    h3{font-size:21px;font-weight:780}
    p{color:var(--muted)}
    .lead{font-size:18px;color:#435367;line-height:1.8}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .section-head .title-wrap{max-width:720px}
    .section-head h2{margin-top:12px}
    .section-head p{margin-top:12px;max-width:650px}
    .topbar{
      background:linear-gradient(90deg,#F2F7FC,#FFFFFF 52%,#F7F0E3);
      border-bottom:1px solid #E6EEF6;
      color:#3D5167;
      font-size:13px;
    }
    .topbar .container{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar strong{color:var(--primary-dark)}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.94);
      backdrop-filter:saturate(160%) blur(14px);
      border-bottom:1px solid #E6EEF6;
    }
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .logo{
      display:flex;align-items:center;gap:12px;min-width:max-content;
      font-weight:850;color:var(--primary-dark);
    }
    .logo-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;color:#fff;font-weight:900;font-size:13px;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 12px 26px rgba(37,99,168,.22);
      position:relative;overflow:hidden;
    }
    .logo-mark:after{content:"";position:absolute;right:-10px;bottom:-10px;width:24px;height:24px;border-radius:999px;background:var(--accent)}
    .logo-text{display:flex;flex-direction:column;line-height:1.18}
    .logo-text span:first-child{font-size:17px}
    .logo-text span:last-child{font-size:12px;color:var(--muted);font-weight:650}
    .nav{display:flex;align-items:center;gap:6px}
    .nav-item{position:relative}
    .nav-link{
      display:inline-flex;align-items:center;gap:6px;
      padding:10px 14px;border-radius:999px;
      color:#314457;font-size:15px;font-weight:700;
    }
    .nav-link:hover,.nav-link.active{color:var(--primary-dark);background:var(--primary-soft)}
    .nav-link.active:after{
      content:"";position:absolute;left:22px;right:22px;bottom:3px;height:2px;
      border-radius:999px;background:var(--accent);
    }
    .mega{
      position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(8px);
      width:620px;padding:18px;background:#fff;border:1px solid var(--border);
      border-radius:22px;box-shadow:var(--shadow-strong);opacity:0;visibility:hidden;
      transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
    }
    .nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
    .mega:before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px}
    .mega-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}
    .mega-card,.mega-panel{
      border-radius:16px;padding:16px;border:1px solid rgba(37,99,168,.1);
      background:#fff;
    }
    .mega-card:hover{background:var(--primary-soft);transform:translateY(-2px)}
    .mega-card b{display:block;color:var(--primary-dark);margin-bottom:4px}
    .mega-card small,.mega-panel small{color:var(--muted);line-height:1.6;display:block}
    .mega-panel{background:linear-gradient(135deg,var(--primary-soft),#fff)}
    .mega-panel .mini-badge{display:inline-flex;margin-bottom:10px;background:var(--accent-soft);color:#7B5D1E;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:750}
    .nav-cta{
      display:inline-flex;align-items:center;justify-content:center;
      padding:11px 16px;border-radius:999px;background:var(--primary);color:#fff;
      font-weight:780;font-size:14px;box-shadow:0 12px 26px rgba(37,99,168,.18);
    }
    .nav-cta:hover{background:var(--primary-dark);transform:translateY(-1px)}
    .mobile-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      border:1px solid var(--border);background:#fff;align-items:center;justify-content:center;
    }
    .mobile-toggle span,.mobile-toggle span:before,.mobile-toggle span:after{
      display:block;width:20px;height:2px;background:var(--primary-dark);border-radius:999px;position:relative;transition:var(--ease)
    }
    .mobile-toggle span:before,.mobile-toggle span:after{content:"";position:absolute;left:0}
    .mobile-toggle span:before{top:-7px}.mobile-toggle span:after{top:7px}
    .hero{
      position:relative;overflow:hidden;
      background:
        linear-gradient(90deg,rgba(246,249,252,.96),rgba(246,249,252,.86) 45%,rgba(255,255,255,.92)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      padding:76px 0 54px;
    }
    .hero:after{
      content:"";position:absolute;right:-120px;top:80px;width:320px;height:320px;
      border-radius:999px;background:rgba(199,167,108,.14);filter:blur(6px);
    }
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:center}
    .hero h1{margin-top:18px;max-width:720px;color:#13243A}
    .hero h1 em{font-style:normal;color:var(--primary-dark);position:relative}
    .hero h1 em:after{content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;background:rgba(199,167,108,.26);z-index:-1;border-radius:999px}
    .hero .lead{margin-top:20px;max-width:650px}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:12px 20px;border-radius:999px;
      font-weight:780;border:1px solid transparent;transition:var(--ease);
    }
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 14px 30px rgba(37,99,168,.2)}
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 18px 38px rgba(37,99,168,.25)}
    .btn-secondary{background:#fff;color:var(--primary-dark);border-color:var(--border)}
    .btn-secondary:hover{background:var(--primary-soft);border-color:rgba(37,99,168,.3);transform:translateY(-2px)}
    .trust-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
    .trust-pill{
      display:inline-flex;align-items:center;gap:8px;padding:9px 12px;
      background:rgba(255,255,255,.75);border:1px solid var(--border);
      border-radius:999px;color:#405166;font-size:14px;font-weight:700;
    }
    .trust-pill i{width:8px;height:8px;border-radius:999px;background:var(--success)}
    .dashboard{
      background:rgba(255,255,255,.9);border:1px solid rgba(37,99,168,.12);
      border-radius:30px;padding:18px;box-shadow:var(--shadow-strong);
      backdrop-filter:blur(10px);
    }
    .dash-cover{
      height:190px;border-radius:24px;overflow:hidden;position:relative;margin-bottom:16px;
      background:#DDE7F1;
    }
    .dash-cover img{width:100%;height:100%;object-fit:cover}
    .dash-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(16,42,67,.54),transparent 65%)}
    .dash-cover .cover-text{position:absolute;left:18px;right:18px;bottom:16px;z-index:1;color:#fff}
    .dash-cover b{display:block;font-size:20px;line-height:1.25}
    .dash-cover small{color:rgba(255,255,255,.86)}
    .dash-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
    .dash-top strong{font-size:18px;color:var(--primary-dark)}
    .status{display:inline-flex;align-items:center;gap:6px;color:var(--success);font-size:13px;font-weight:800;background:#EAF7F2;border-radius:999px;padding:5px 10px}
    .status:before{content:"";width:7px;height:7px;border-radius:999px;background:var(--success)}
    .dash-list{display:grid;gap:10px}
    .dash-item{
      display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
      padding:13px;border-radius:16px;background:#F9FBFE;border:1px solid var(--border)
    }
    .dash-item b{display:block;color:#24384F}
    .dash-item span{font-size:13px;color:var(--muted)}
    .dash-tag{font-size:12px;font-weight:800;color:#7B5D1E;background:var(--accent-soft);border-radius:999px;padding:4px 8px;white-space:nowrap}
    .quick-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
    .quick-stat{padding:13px;border-radius:16px;background:#fff;border:1px solid var(--border)}
    .quick-stat b{font-size:20px;color:var(--primary-dark)}
    .quick-stat span{display:block;font-size:12px;color:var(--muted)}
    .matrix{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
    .feature-large{
      min-height:390px;border-radius:var(--radius-lg);padding:30px;
      background:linear-gradient(135deg,#EAF3FB,#FFFFFF);
      border:1px solid rgba(37,99,168,.12);box-shadow:var(--shadow);
      display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;position:relative;
    }
    .feature-large:after{content:"";position:absolute;right:-80px;bottom:-80px;width:210px;height:210px;border-radius:999px;background:rgba(199,167,108,.18)}
    .feature-large img{width:100%;height:170px;object-fit:cover;border-radius:22px;margin-top:22px;box-shadow:0 12px 28px rgba(31,74,118,.1)}
    .card-icon{
      width:44px;height:44px;border-radius:15px;display:grid;place-items:center;
      background:#fff;color:var(--primary);border:1px solid rgba(37,99,168,.12);font-weight:900;
    }
    .feature-large h3{font-size:28px;margin-top:18px}
    .feature-large p{margin-top:12px;max-width:560px}
    .text-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:var(--primary-dark);font-weight:800}
    .text-link span{transition:transform var(--ease)}
    .text-link:hover span{transform:translateX(3px)}
    .mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .mini-card,.content-card,.scenario-card,.faq-card,.guide-step,.stat-card{
      background:var(--surface);border:1px solid var(--border);
      border-radius:var(--radius-md);box-shadow:0 10px 28px rgba(31,74,118,.05);
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease);
    }
    .mini-card{padding:22px;min-height:187px}
    .mini-card:hover,.content-card:hover,.scenario-card:hover,.guide-step:hover,.stat-card:hover{
      transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(37,99,168,.28)
    }
    .mini-card h3{margin-top:14px}
    .mini-card p{margin-top:8px;font-size:15px}
    .category-strip{
      background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
      padding:22px 0;
    }
    .category-card{
      display:flex;align-items:center;justify-content:space-between;gap:22px;
      padding:24px 28px;border-radius:24px;background:linear-gradient(100deg,#FFFFFF,#F1F7FD);
      border:1px solid rgba(37,99,168,.12);box-shadow:var(--shadow);
    }
    .category-card h2{font-size:26px}
    .category-card p{margin-top:6px}
    .tag-group{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;
      background:#fff;border:1px solid var(--border);color:#405166;font-size:14px;font-weight:720;
    }
    .tag:hover{background:var(--primary);border-color:var(--primary);color:#fff}
    .stats-band{background:linear-gradient(180deg,#fff,#F6F9FC)}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .stat-card{padding:24px}
    .stat-card b{display:block;font-size:34px;line-height:1;color:var(--primary-dark);letter-spacing:-.04em}
    .stat-card b small{font-size:15px;color:var(--accent);margin-left:2px}
    .stat-card span{display:block;margin-top:9px;color:#405166;font-weight:760}
    .stat-card p{font-size:14px;margin-top:8px}
    .content-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
    .content-card{overflow:hidden}
    .content-img{height:160px;overflow:hidden;background:#DDE7F1}
    .content-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
    .content-card:hover img{transform:scale(1.05)}
    .content-body{padding:22px}
    .badge{
      display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;
      background:var(--accent-soft);color:#7B5D1E;font-size:12px;font-weight:820;
    }
    .content-body h3{margin-top:12px}
    .content-body p{font-size:15px;margin-top:9px}
    .scenarios{
      background:
        linear-gradient(180deg,rgba(246,249,252,.96),rgba(255,255,255,.96)),
        url('/assets/images/backpic/back-2.webp') center/cover fixed;
    }
    .scenario-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:28px;align-items:start}
    .scenario-note{
      position:sticky;top:108px;border-radius:var(--radius-lg);padding:28px;
      background:var(--footer);color:#fff;box-shadow:var(--shadow-strong);
    }
    .scenario-note h2{color:#fff;margin-top:12px}
    .scenario-note p{color:#D5E4F2;margin-top:12px}
    .scenario-note .line{width:52px;height:4px;border-radius:999px;background:var(--accent);margin-top:22px}
    .scenario-list{display:grid;gap:16px}
    .scenario-card{padding:24px;display:grid;grid-template-columns:64px 1fr;gap:18px}
    .num{
      width:52px;height:52px;border-radius:18px;display:grid;place-items:center;
      background:var(--accent-soft);color:#7B5D1E;font-weight:900;
    }
    .scenario-card p{margin-top:8px}
    .guide-wrap{
      background:#fff;border-radius:34px;padding:34px;border:1px solid var(--border);
      box-shadow:var(--shadow);position:relative;overflow:hidden;
    }
    .guide-wrap:before{
      content:"";position:absolute;left:62px;right:62px;top:98px;height:2px;
      background:linear-gradient(90deg,var(--accent),var(--primary-soft));
    }
    .guide-grid{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .guide-step{padding:24px;position:relative;background:#fff}
    .guide-step .step-id{
      display:inline-flex;width:48px;height:48px;border-radius:16px;align-items:center;justify-content:center;
      background:var(--primary);color:#fff;font-weight:900;box-shadow:0 12px 24px rgba(37,99,168,.18)
    }
    .guide-step h3{margin-top:18px}
    .guide-step p{margin-top:9px}
    .notice{
      margin-top:20px;border-radius:18px;padding:16px 18px;
      background:#FFF8EC;border:1px solid #F0DDB7;color:#6F5116;font-size:14px;
    }
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .faq-card{overflow:hidden}
    .faq-card details{padding:0}
    .faq-card summary{
      list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:20px 22px;font-weight:820;color:#24384F;cursor:pointer;
    }
    .faq-card summary::-webkit-details-marker{display:none}
    .faq-card summary:after{
      content:"+";width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;background:var(--primary-soft);color:var(--primary-dark);
      font-weight:900;transition:transform var(--ease),background var(--ease);
      flex:0 0 auto;
    }
    .faq-card details[open] summary:after{content:"";transform:rotate(45deg);background:var(--accent-soft)}
    .faq-card .answer{padding:0 22px 20px;color:var(--muted);font-size:15px}
    .faq-card:hover{border-color:rgba(37,99,168,.28)}
    .cta{
      padding:74px 0;background:linear-gradient(135deg,#F8FAFD,#EAF3FB);
    }
    .cta-box{
      display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;
      padding:34px;border-radius:34px;background:#fff;border:1px solid rgba(37,99,168,.12);
      box-shadow:var(--shadow-strong);overflow:hidden;position:relative;
    }
    .cta-box:after{content:"";position:absolute;right:-70px;top:-70px;width:210px;height:210px;border-radius:999px;background:rgba(199,167,108,.18)}
    .cta-box h2{margin-top:12px}
    .cta-box p{margin-top:12px}
    .feedback{
      position:relative;z-index:1;background:#F8FBFE;border:1px solid var(--border);
      border-radius:24px;padding:22px;
    }
    .form-grid{display:grid;gap:12px;margin-top:12px}
    .input{
      width:100%;height:48px;border:1px solid var(--border);border-radius:14px;
      padding:0 14px;background:#fff;color:var(--text);transition:var(--ease);
    }
    textarea.input{height:86px;padding-top:12px;resize:vertical}
    .input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,168,.1);outline:none}
    .form-hint{font-size:13px;color:var(--muted);margin-top:10px}
    .site-footer{
      background:var(--footer);color:#fff;padding:54px 0 28px;
    }
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr .9fr;gap:32px}
    .footer-logo{display:flex;align-items:center;gap:12px;font-weight:850}
    .footer-logo .logo-mark{box-shadow:none}
    .footer-about p{color:#C6D6E5;margin-top:14px;max-width:440px}
    .footer-title{font-weight:820;margin-bottom:12px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#C6D6E5}
    .footer-links a:hover{color:var(--accent)}
    .keyword-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .footer-keyword{
      border:1px solid rgba(255,255,255,.14);color:#D9E7F3;border-radius:999px;
      padding:6px 10px;font-size:13px;background:rgba(255,255,255,.04)
    }
    .footer-bottom{
      margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
      color:#AFC4D8;font-size:13px;
    }
    .disclaimer{max-width:720px}
    @media (max-width:1024px){
      h1{font-size:42px}
      .hero-grid,.matrix,.scenario-grid,.cta-box{grid-template-columns:1fr}
      .scenario-note{position:relative;top:auto}
      .stats-grid{grid-template-columns:repeat(2,1fr)}
      .content-row{grid-template-columns:1fr 1fr}
      .guide-wrap:before{display:none}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:820px){
      .topbar .container{justify-content:center;text-align:center}
      .topbar span:last-child{display:none}
      .mobile-toggle{display:flex}
      .nav-wrap{height:68px}
      .nav{
        position:absolute;left:20px;right:20px;top:76px;
        display:none;flex-direction:column;align-items:stretch;gap:8px;
        background:#fff;border:1px solid var(--border);border-radius:22px;
        padding:14px;box-shadow:var(--shadow-strong);
      }
      .nav.open{display:flex}
      .nav-link{justify-content:space-between;border-radius:14px;padding:12px 14px}
      .nav-link.active:after{display:none}
      .mega{
        position:static;transform:none;width:100%;opacity:1;visibility:visible;
        box-shadow:none;margin-top:8px;border-radius:18px;display:none;
      }
      .nav-item:hover .mega,.nav-item:focus-within .mega{display:block;transform:none}
      .mega-grid{grid-template-columns:1fr}
      .nav-cta{display:none}
      .hero{padding:52px 0 44px}
      .section{padding:62px 0}
      .section-head{display:block}
      .mini-grid,.faq-grid,.guide-grid{grid-template-columns:1fr}
      .category-card{align-items:flex-start;flex-direction:column}
      .quick-stats{grid-template-columns:1fr 1fr 1fr}
    }
    @media (max-width:560px){
      .container{width:min(100% - 32px,var(--container))}
      h1{font-size:33px}
      h2{font-size:27px}
      .lead{font-size:16px}
      .hero-actions .btn,.cta .btn{width:100%}
      .dashboard,.cta-box,.guide-wrap{border-radius:24px;padding:18px}
      .feature-large{padding:22px;min-height:auto}
      .feature-large h3{font-size:24px}
      .content-row,.stats-grid{grid-template-columns:1fr}
      .scenario-card{grid-template-columns:1fr}
      .quick-stats{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom .disclaimer{margin-top:10px}
    }

/* roulang page: category1 */
:root{
      --primary:#2563A8;
      --primary-dark:#174C82;
      --primary-soft:#EAF3FB;
      --accent:#C7A76C;
      --accent-soft:#F6EBD4;
      --bg:#F6F9FC;
      --surface:#FFFFFF;
      --surface-2:#F8FAFD;
      --text:#172033;
      --muted:#5D6B7C;
      --border:#DDE7F1;
      --border-strong:rgba(37,99,168,.22);
      --success:#2E8B73;
      --warning:#B7791F;
      --shadow:0 14px 40px rgba(31,74,118,.08);
      --shadow-hover:0 20px 54px rgba(31,74,118,.13);
      --radius-lg:28px;
      --radius-md:22px;
      --radius-sm:14px;
      --container:1180px;
      --transition:.24s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(199,167,108,.16), transparent 30%),
        linear-gradient(180deg,#FBFDFF 0%,var(--bg) 42%,#FFFFFF 100%);
      line-height:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none}
    :focus-visible{outline:3px solid rgba(37,99,168,.22);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .topbar{
      background:linear-gradient(90deg,#F0F7FE,#FFF9EC);
      border-bottom:1px solid rgba(37,99,168,.08);
      color:var(--muted);
      font-size:13px;
    }
    .topbar .container{
      min-height:34px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .topbar strong{color:var(--primary-dark);font-weight:700}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.94);
      backdrop-filter:saturate(150%) blur(14px);
      border-bottom:1px solid #E6EEF6;
      box-shadow:0 8px 22px rgba(23,76,130,.04);
    }
    .header-inner{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:26px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      color:var(--primary-dark);
      letter-spacing:.01em;
    }
    .logo-mark{
      width:44px;
      height:44px;
      border-radius:15px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      color:#fff;
      font-weight:900;
      font-size:14px;
      box-shadow:0 10px 22px rgba(37,99,168,.2);
      position:relative;
      overflow:hidden;
    }
    .logo-mark:after{
      content:"";
      position:absolute;
      right:-12px;
      bottom:-12px;
      width:28px;
      height:28px;
      border-radius:50%;
      background:rgba(199,167,108,.72);
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-text span:first-child{font-size:17px}
    .brand-text small{font-size:12px;color:var(--muted);font-weight:600;margin-top:3px}
    .nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .nav-item{position:relative}
    .nav-link{
      display:flex;
      align-items:center;
      min-height:42px;
      padding:0 15px;
      border-radius:999px;
      color:#334155;
      font-size:15px;
      font-weight:700;
      transition:color var(--transition),background var(--transition);
      position:relative;
    }
    .nav-link:hover,.nav-link:focus-visible{color:var(--primary);background:var(--primary-soft)}
    .nav-link.active{color:var(--primary-dark);background:#F3F8FD}
    .nav-link.active:after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:5px;
      height:2px;
      border-radius:999px;
      background:var(--accent);
    }
    .mega{
      position:absolute;
      top:calc(100% + 12px);
      left:50%;
      transform:translateX(-50%) translateY(8px);
      width:min(640px,calc(100vw - 48px));
      padding:14px;
      border-radius:18px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.98);
      box-shadow:var(--shadow-hover);
      opacity:0;
      visibility:hidden;
      pointer-events:none;
      transition:opacity var(--transition),transform var(--transition),visibility var(--transition);
    }
    .nav-item:hover .mega,.nav-item:focus-within .mega{
      opacity:1;
      visibility:visible;
      pointer-events:auto;
      transform:translateX(-50%) translateY(0);
    }
    .mega-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:12px}
    .mega-card,.mega-panel{
      border-radius:15px;
      padding:17px;
      border:1px solid rgba(37,99,168,.1);
      background:#fff;
      transition:background var(--transition),border-color var(--transition),transform var(--transition);
    }
    .mega-card:hover{background:var(--primary-soft);border-color:rgba(37,99,168,.24);transform:translateY(-2px)}
    .mega-card b,.mega-panel b{display:block;color:var(--primary-dark);font-size:16px;margin-bottom:7px}
    .mega-card small,.mega-panel small{display:block;color:var(--muted);font-size:13px;line-height:1.65}
    .mega-panel{background:linear-gradient(135deg,#F8FBFE,#FFF8EA)}
    .mini-badge{
      display:inline-flex;
      align-items:center;
      padding:4px 9px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#7A5A1D;
      font-size:12px;
      font-weight:800;
      margin-bottom:8px;
    }
    .header-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:12px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:800;
      font-size:15px;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition);
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--primary);
      color:#fff;
      box-shadow:0 12px 24px rgba(37,99,168,.18);
    }
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 16px 30px rgba(23,76,130,.22)}
    .btn-secondary{
      background:#fff;
      color:var(--primary);
      border-color:var(--border-strong);
    }
    .btn-secondary:hover{background:var(--primary-soft);border-color:rgba(37,99,168,.34);transform:translateY(-1px)}
    .btn-text{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--primary);
      font-weight:800;
      font-size:15px;
      transition:color var(--transition),gap var(--transition);
    }
    .btn-text:hover{color:var(--primary-dark);gap:10px}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      border:1px solid var(--border);
      background:#fff;
      color:var(--primary-dark);
      align-items:center;
      justify-content:center;
      font-size:22px;
    }
    .page-hero{
      padding:58px 0 44px;
      position:relative;
      overflow:hidden;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(246,249,252,.98),rgba(246,249,252,.78)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      z-index:-2;
    }
    .page-hero:after{
      content:"";
      position:absolute;
      width:360px;
      height:360px;
      right:-110px;
      top:-120px;
      border-radius:50%;
      background:rgba(199,167,108,.16);
      z-index:-1;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      color:var(--muted);
      font-size:14px;
      margin-bottom:18px;
    }
    .breadcrumb a{color:var(--primary);font-weight:700}
    .breadcrumb span:last-child{color:var(--text);font-weight:700}
    .hero-grid{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:38px;
      align-items:center;
    }
    .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid rgba(37,99,168,.12);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:800;
      box-shadow:0 8px 20px rgba(31,74,118,.05);
    }
    .badge.gold{background:#FFF7E8;color:#765719;border-color:rgba(199,167,108,.32)}
    h1,h2,h3,p{margin-top:0}
    h1{
      margin-bottom:18px;
      font-size:clamp(30px,4.2vw,46px);
      line-height:1.18;
      letter-spacing:-.03em;
      color:#14243A;
    }
    .hero-desc{
      max-width:720px;
      margin-bottom:24px;
      color:var(--muted);
      font-size:17px;
      line-height:1.85;
    }
    .hero-tools{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:24px;
    }
    .tool-tile{
      padding:14px 15px;
      border-radius:16px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(37,99,168,.11);
    }
    .tool-tile b{display:block;color:var(--primary-dark);font-size:14px;margin-bottom:4px}
    .tool-tile small{color:var(--muted);font-size:12px;line-height:1.55}
    .hero-cover{
      position:relative;
      border-radius:var(--radius-lg);
      padding:12px;
      background:#fff;
      border:1px solid rgba(37,99,168,.12);
      box-shadow:var(--shadow-hover);
    }
    .hero-cover img{
      width:100%;
      aspect-ratio:4/3;
      object-fit:cover;
      border-radius:22px;
    }
    .cover-note{
      position:absolute;
      left:28px;
      right:28px;
      bottom:28px;
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(10px);
      border:1px solid rgba(221,231,241,.88);
      box-shadow:0 12px 28px rgba(23,76,130,.12);
    }
    .cover-note b{display:block;color:var(--primary-dark);margin-bottom:4px}
    .cover-note small{color:var(--muted);line-height:1.6}
    .section{padding:72px 0}
    .section.tight{padding-top:48px}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-size:14px;
      font-weight:900;
      margin-bottom:8px;
    }
    .eyebrow:before{
      content:"";
      width:28px;
      height:3px;
      border-radius:999px;
      background:var(--accent);
    }
    h2{
      font-size:clamp(24px,3vw,34px);
      line-height:1.25;
      letter-spacing:-.02em;
      color:#14243A;
      margin-bottom:10px;
    }
    .section-head p,.section-intro{color:var(--muted);max-width:680px;margin-bottom:0}
    .read-card{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:18px;
      padding:24px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(37,99,168,.11);
      box-shadow:var(--shadow);
    }
    .read-step{
      position:relative;
      padding:18px 18px 18px 56px;
      border-radius:20px;
      background:linear-gradient(180deg,#FFFFFF,#F8FBFE);
      border:1px solid var(--border);
    }
    .read-step .num{
      position:absolute;
      left:18px;
      top:19px;
      width:28px;
      height:28px;
      border-radius:10px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--accent-soft);
      color:#765719;
      font-weight:900;
      font-size:13px;
    }
    .read-step h3{font-size:18px;margin-bottom:7px;color:var(--primary-dark)}
    .read-step p{font-size:14px;color:var(--muted);margin-bottom:0;line-height:1.65}
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:28px;
      align-items:start;
    }
    .main-list{display:grid;gap:18px}
    .feature-card{
      display:grid;
      grid-template-columns:280px 1fr;
      gap:22px;
      padding:18px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(37,99,168,.12);
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(37,99,168,.25)}
    .feature-thumb,.list-thumb{
      overflow:hidden;
      border-radius:20px;
      background:var(--primary-soft);
    }
    .feature-thumb img,.list-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s ease;
    }
    .feature-card:hover img,.list-card:hover img{transform:scale(1.04)}
    .feature-thumb{min-height:220px}
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      margin-bottom:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:800;
      border:1px solid rgba(37,99,168,.08);
      transition:background var(--transition),color var(--transition),border-color var(--transition),transform var(--transition);
    }
    .tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-1px)}
    .tag.gold{background:#FFF7E8;color:#765719;border-color:rgba(199,167,108,.28)}
    .feature-card h3,.list-card h3{margin-bottom:10px;font-size:23px;line-height:1.35;color:#14243A;transition:color var(--transition)}
    .feature-card:hover h3,.list-card:hover h3{color:var(--primary)}
    .feature-card p,.list-card p{color:var(--muted);margin-bottom:15px;line-height:1.72}
    .feature-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      margin:16px 0;
    }
    .feature-points span{
      padding:10px;
      border-radius:12px;
      background:var(--surface-2);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:800;
      text-align:center;
    }
    .list-card{
      display:grid;
      grid-template-columns:168px 1fr;
      gap:18px;
      padding:16px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(37,99,168,.1);
      box-shadow:0 10px 30px rgba(31,74,118,.06);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .list-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(37,99,168,.23)}
    .list-thumb{height:138px}
    .list-card h3{font-size:20px}
    .list-card p{
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
      margin-bottom:10px;
      font-size:15px;
    }
    .sidebar{
      position:sticky;
      top:102px;
      display:grid;
      gap:16px;
    }
    .side-card{
      padding:20px;
      border-radius:22px;
      background:#fff;
      border:1px solid rgba(37,99,168,.11);
      box-shadow:0 10px 30px rgba(31,74,118,.06);
    }
    .side-card.highlight{
      background:linear-gradient(135deg,#EAF3FB,#FFF8EA);
      border-color:rgba(37,99,168,.14);
    }
    .side-card h3{
      font-size:18px;
      margin-bottom:12px;
      color:var(--primary-dark);
    }
    .keyword-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .quick-list{display:grid;gap:11px;margin:0;padding:0;list-style:none}
    .quick-list a{
      display:block;
      padding:11px 12px;
      border-radius:14px;
      background:#F8FBFE;
      border:1px solid rgba(37,99,168,.08);
      color:#34465C;
      font-weight:700;
      font-size:14px;
      line-height:1.55;
      transition:background var(--transition),color var(--transition),border-color var(--transition),transform var(--transition);
    }
    .quick-list a:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:rgba(37,99,168,.2);transform:translateX(2px)}
    .side-note{
      color:var(--muted);
      font-size:14px;
      margin-bottom:14px;
      line-height:1.7;
    }
    .verify-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .verify-panel{
      padding:28px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(37,99,168,.11);
      box-shadow:var(--shadow);
    }
    .verify-list{display:grid;gap:14px;margin-top:18px}
    .verify-item{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:13px;
      padding:15px;
      border-radius:18px;
      background:var(--surface-2);
      border:1px solid var(--border);
    }
    .verify-icon{
      width:42px;
      height:42px;
      border-radius:14px;
      background:var(--primary-soft);
      color:var(--primary);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
    }
    .verify-item h3{font-size:17px;margin-bottom:4px;color:#14243A}
    .verify-item p{font-size:14px;color:var(--muted);margin-bottom:0;line-height:1.65}
    .verify-image{
      min-height:420px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      border:1px solid rgba(37,99,168,.12);
      box-shadow:var(--shadow);
      position:relative;
    }
    .verify-image img{width:100%;height:100%;object-fit:cover}
    .image-stamp{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(10px);
      border:1px solid rgba(255,255,255,.78);
    }
    .image-stamp b{color:var(--primary-dark);display:block;margin-bottom:4px}
    .image-stamp small{color:var(--muted);line-height:1.6}
    .tabs-row{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-bottom:22px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    details.faq-item{
      border-radius:20px;
      background:#fff;
      border:1px solid rgba(37,99,168,.12);
      box-shadow:0 10px 28px rgba(31,74,118,.05);
      overflow:hidden;
      transition:border-color var(--transition),box-shadow var(--transition);
    }
    details.faq-item:hover{border-color:rgba(37,99,168,.24);box-shadow:var(--shadow)}
    details.faq-item[open]{border-color:rgba(37,99,168,.3)}
    .faq-item summary{
      list-style:none;
      padding:18px 52px 18px 20px;
      cursor:pointer;
      position:relative;
      font-weight:900;
      color:#14243A;
      line-height:1.55;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      position:absolute;
      right:18px;
      top:50%;
      transform:translateY(-50%);
      width:26px;
      height:26px;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      transition:transform var(--transition),background var(--transition),color var(--transition);
    }
    .faq-item[open] summary:after{
      content:"—";
      background:var(--primary);
      color:#fff;
    }
    .faq-item p{
      padding:0 20px 18px;
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.75;
    }
    .cta{
      padding:0 0 76px;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      padding:34px;
      background:
        linear-gradient(135deg,rgba(37,99,168,.96),rgba(23,76,130,.94)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      color:#fff;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      box-shadow:0 22px 58px rgba(23,76,130,.22);
    }
    .cta-card:after{
      content:"";
      position:absolute;
      right:-80px;
      top:-80px;
      width:220px;
      height:220px;
      border-radius:50%;
      background:rgba(199,167,108,.28);
    }
    .cta-card h2{color:#fff;margin-bottom:10px}
    .cta-card p{color:rgba(255,255,255,.82);margin-bottom:0;max-width:720px}
    .cta-actions{display:flex;gap:12px;position:relative;z-index:1}
    .cta .btn-primary{background:#fff;color:var(--primary-dark);box-shadow:none}
    .cta .btn-primary:hover{background:#F2F7FC;color:var(--primary-dark)}
    .cta .btn-secondary{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.35)}
    .cta .btn-secondary:hover{background:rgba(255,255,255,.16)}
    .site-footer{
      background:#102A43;
      color:#D9E8F5;
      padding:52px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .7fr 1fr;
      gap:34px;
      padding-bottom:30px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-logo{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-about p{color:#B8C9D8;margin:0;max-width:520px;font-size:14px;line-height:1.8}
    .footer-title{color:#fff;font-weight:900;margin-bottom:13px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#C8D8E6;font-size:14px;transition:color var(--transition),transform var(--transition)}
    .footer-links a:hover{color:var(--accent);transform:translateX(2px)}
    .footer-keyword{
      display:inline-flex;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(234,243,251,.1);
      border:1px solid rgba(255,255,255,.12);
      color:#D9E8F5;
      font-size:13px;
    }
    .footer-bottom{
      padding-top:20px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:#AFC1D0;
      font-size:13px;
      line-height:1.7;
    }
    .disclaimer{max-width:720px}
    @media (max-width:1024px){
      .header-inner{gap:14px}
      .brand-text small{display:none}
      .hero-grid,.verify-grid{grid-template-columns:1fr}
      .content-layout{grid-template-columns:1fr}
      .sidebar{position:static;grid-template-columns:1fr 1fr}
      .feature-card{grid-template-columns:240px 1fr}
      .cta-card{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:820px){
      .topbar .container{justify-content:center;text-align:center}
      .topbar span:last-child{display:none}
      .header-inner{height:auto;min-height:68px;flex-wrap:wrap;padding:12px 0}
      .menu-toggle{display:flex;margin-left:auto}
      .nav{
        order:4;
        flex-basis:100%;
        display:none;
        align-items:stretch;
        flex-direction:column;
        gap:8px;
        padding:8px 0 4px;
      }
      .nav.open{display:flex}
      .nav-link{justify-content:space-between;border:1px solid var(--border);border-radius:14px;padding:12px 14px;background:#fff}
      .nav-link.active:after{display:none}
      .mega{
        position:static;
        transform:none;
        width:100%;
        opacity:1;
        visibility:visible;
        pointer-events:auto;
        box-shadow:none;
        padding:8px 0 0;
        border:0;
        display:none;
      }
      .nav-item.open .mega{display:block}
      .nav-item:hover .mega{transform:none}
      .mega-grid{grid-template-columns:1fr}
      .header-actions .btn{display:none}
      .hero-tools,.read-card,.faq-grid{grid-template-columns:1fr}
      .feature-card,.list-card{grid-template-columns:1fr}
      .feature-thumb{min-height:auto}
      .list-thumb{height:auto}
      .list-thumb img{aspect-ratio:16/9}
      .sidebar{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .container{width:min(100% - 32px,var(--container))}
      .page-hero{padding:36px 0 32px}
      .section{padding:52px 0}
      .section-head{display:block}
      .badge-row{gap:8px}
      .hero-desc{font-size:16px}
      .cover-note{position:static;margin-top:12px}
      .hero-cover{padding:9px}
      .feature-points{grid-template-columns:1fr}
      .verify-panel,.cta-card{padding:22px}
      .cta-actions{flex-direction:column}
      .btn{width:100%}
      .brand-text span:first-child{font-size:15px}
      .logo-mark{width:40px;height:40px}
    }