/* roulang page: index */
:root{
      --blue:#315fd5;
      --blue-dark:#2347aa;
      --blue-soft:#eaf1ff;
      --cyan:#e8f7fa;
      --ink:#17233d;
      --muted:#66738c;
      --line:#dfe7f3;
      --paper:#ffffff;
      --bg:#f7faff;
      --green:#258a68;
      --shadow:0 18px 50px rgba(38,75,140,.10);
      --shadow-sm:0 8px 24px rgba(38,75,140,.08);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}
    a{text-decoration:none;color:inherit}
    img{display:block;max-width:100%}
    button{font:inherit}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .nav-wrap{height:76px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:11px;min-width:260px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 8px 18px rgba(49,95,213,.24)}
    .brand-text{font-size:16px;line-height:1.25}
    .nav-links{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav-links a{font-size:14px;color:#65728a;transition:.2s}
    .nav-links a:hover,.nav-links a.active{color:var(--blue)}
    .nav-cta,.btn-primary{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:11px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);transition:.2s;box-shadow:0 8px 18px rgba(49,95,213,.16)}
    .nav-cta:hover,.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(49,95,213,.22)}
    .btn-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:11px;background:#fff;color:var(--blue);font-weight:700;border:1px solid #b8c9ed;transition:.2s}
    .btn-secondary:hover{border-color:var(--blue);background:var(--blue-soft);transform:translateY(-2px)}
    a:focus-visible,button:focus-visible{outline:3px solid #8bb3ff;outline-offset:3px}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:25px}
    .hero{padding:72px 0 82px;background:linear-gradient(135deg,#f6f9ff 0%,#eaf2ff 55%,#f4fbfc 100%);overflow:hidden}
    .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:66px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.04em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--blue);border-radius:2px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.17;letter-spacing:-.055em;margin:18px 0 22px;font-weight:800}
    .hero-copy{font-size:17px;color:var(--muted);max-width:650px;margin-bottom:29px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px}
    .hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .tag,.status{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border-radius:999px;font-size:12px;font-weight:700}
    .tag{background:#fff;color:#536684;border:1px solid #d6e1f2}
    .status-green{background:#e7f7f0;color:#217257}
    .status-blue{background:#eaf1ff;color:#3159b7}
    .status-gray{background:#f0f3f8;color:#68758d}
    .hero-visual{position:relative;min-height:400px;border-radius:25px;overflow:hidden;box-shadow:var(--shadow);background:#dce9fb}
    .hero-visual img{width:100%;height:400px;object-fit:cover}
    .visual-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(19,48,105,.62),rgba(19,48,105,.06) 70%);display:flex;align-items:flex-end;padding:28px}
    .visual-note{color:white;max-width:260px}
    .visual-note strong{display:block;font-size:22px;line-height:1.35;margin-bottom:6px}
    section{padding:88px 0}
    .section-head{max-width:720px;margin-bottom:34px}
    .section-head h2{font-size:clamp(27px,3vw,40px);line-height:1.3;letter-spacing:-.04em;margin:12px 0 12px;font-weight:800}
    .section-head p{color:var(--muted);font-size:15px;margin-bottom:0}
    .soft-section{background:#eef5ff}
    .white-section{background:#fff}
    .verify-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
    .verify-item{padding:25px 22px;border-right:1px solid var(--line)}
    .verify-item:last-child{border-right:0}
    .verify-number{font-size:13px;color:var(--blue);font-weight:800}
    .verify-item h3{font-size:17px;margin:7px 0 5px}
    .verify-item p{font-size:13px;color:var(--muted);margin:0}
    .three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .info-card,.device-card,.feedback-card,.article-card,.issue-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow-sm);transition:.22s}
    .info-card:hover,.device-card:hover,.feedback-card:hover,.article-card:hover,.issue-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .icon-box{width:45px;height:45px;border-radius:13px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-size:19px;font-weight:800;margin-bottom:21px}
    .info-card h3,.device-card h3,.feedback-card h3,.article-card h3,.issue-card h3{font-size:19px;margin-bottom:9px}
    .info-card p,.device-card p,.feedback-card p,.article-card p,.issue-card p{font-size:14px;color:var(--muted);margin-bottom:18px}
    .text-link{color:var(--blue);font-size:13px;font-weight:800}
    .version-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:25px;align-items:stretch}
    .version-panel,.notice-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:28px}
    .version-table{width:100%;border-collapse:collapse;font-size:14px}
    .version-table th{text-align:left;color:#71809a;font-weight:700;font-size:12px;padding:0 12px 14px;border-bottom:1px solid var(--line)}
    .version-table td{padding:17px 12px;border-bottom:1px solid #edf1f7;color:#4d5d77}
    .version-table tr:last-child td{border-bottom:0}
    .notice-panel{background:#f4f8ff;border-color:#d7e3f7}
    .notice-panel h3{font-size:20px;margin-bottom:14px}
    .check-list{list-style:none;padding:0;margin:0}
    .check-list li{position:relative;padding:10px 0 10px 28px;border-bottom:1px solid #dfe9f6;font-size:14px;color:#586984}
    .check-list li:last-child{border:0}
    .check-list li:before{content:"✓";position:absolute;left:0;top:9px;color:var(--green);font-weight:800}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
    .step{position:relative;padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .step-num{width:35px;height:35px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:20px}
    .step h3{font-size:18px;margin-bottom:8px}
    .step p{font-size:14px;color:var(--muted);margin:0}
    .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .device-card{padding:25px}
    .device-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:15px}
    .device-title h3{margin:0}
    .feedback-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .feedback-card{min-height:170px}
    .feedback-label{color:var(--blue);font-size:12px;font-weight:800;margin-bottom:12px}
    .feedback-card p{font-size:16px;color:#44536d;margin-bottom:0}
    .compare{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-sm)}
    .compare th,.compare td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
    .compare th{background:#f2f6fd;color:#536582}
    .compare td:first-child{font-weight:700;color:var(--ink);width:27%}
    .compare tr:last-child td{border-bottom:0}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .article-card{padding:0;overflow:hidden}
    .article-top{height:118px;background:linear-gradient(135deg,#dce9ff,#edf7fa);display:flex;align-items:flex-end;padding:18px;color:var(--blue);font-weight:800}
    .article-body{padding:22px}
    .article-meta{font-size:12px;color:#8290a5;margin-bottom:9px}
    .safety-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:stretch}
    .safety-main{background:#244fae;color:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
    .safety-main h2{font-size:28px;line-height:1.35;margin:12px 0 14px}
    .safety-main p{color:#dbe6ff;font-size:14px}
    .safety-main .tag{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff}
    .safety-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
    .safety-list .issue-card{padding:22px}
    .safety-list strong{display:block;font-size:16px;margin-bottom:6px}
    .safety-list span{font-size:13px;color:var(--muted)}
    .issue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .issue-card{padding:23px}
    .issue-card h3{font-size:16px}
    .issue-card p{margin-bottom:0;font-size:13px}
    .faq-list{max-width:900px}
    details{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:12px;padding:0 21px;box-shadow:0 5px 16px rgba(38,75,140,.04)}
    summary{cursor:pointer;list-style:none;padding:19px 30px 19px 0;font-weight:700;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--blue);font-size:23px;font-weight:400;top:14px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;padding:0 0 19px;margin:0}
    .assurance{background:#e9f3ff;border-top:1px solid #d7e7fb;border-bottom:1px solid #d7e7fb}
    .assurance-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .assurance h2{font-size:25px;margin:0 0 7px}
    .assurance p{color:var(--muted);margin:0;font-size:14px}
    .assurance-points{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
    .point{background:#fff;border:1px solid #d3e2f7;border-radius:10px;padding:10px 13px;color:#466385;font-weight:700;font-size:13px}
    .bottom-cta{padding:75px 0;background:#fff}
    .cta-box{border-radius:22px;padding:39px 45px;background:linear-gradient(110deg,#eff5ff,#f2fbfc);border:1px solid #d9e7f8;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-box h2{font-size:30px;line-height:1.35;margin:0 0 9px}
    .cta-box p{color:var(--muted);margin:0;font-size:14px}
    .cta-actions{display:flex;gap:11px;flex-wrap:wrap;flex-shrink:0}
    footer{background:#172642;color:#dbe5f6;padding:55px 0 30px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.14)}
    .footer-brand{font-size:18px;font-weight:800;color:#fff;margin-bottom:13px}
    footer p,footer a{color:#aabbd5;font-size:13px}
    footer a{display:block;margin:7px 0;transition:.2s}
    footer a:hover{color:#fff}
    .footer-title{font-weight:800;color:#fff;font-size:14px;margin-bottom:13px}
    .copyright{padding-top:23px;color:#91a4c1;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    .mobile-bar{display:none}
    @media(max-width:1024px){
      .brand{min-width:auto}.nav-links{gap:15px}
      .hero-grid{gap:35px}.version-layout,.feedback-grid,.safety-layout{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 30px,620px)}
      .nav-wrap{height:67px}.menu-toggle{display:block;margin-left:auto}
      .nav-links{display:none;position:absolute;top:67px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:16px;box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch;gap:0}
      .nav-links.open{display:flex}.nav-links a{padding:12px 8px}.nav-cta{margin-top:7px}
      .hero{padding:52px 0 58px}.hero-grid{grid-template-columns:1fr;gap:30px}
      h1{font-size:39px}.hero-copy{font-size:15px}.hero-visual,.hero-visual img{height:280px;min-height:280px}
      section{padding:60px 0}.three-grid,.steps,.device-grid,.article-grid,.issue-grid{grid-template-columns:1fr}
      .verify-bar{grid-template-columns:1fr 1fr}.verify-item:nth-child(2){border-right:0}.verify-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .verify-item{padding:20px 16px}.safety-list{grid-template-columns:1fr}
      .assurance-inner,.cta-box{display:block}.assurance-points{justify-content:flex-start;margin-top:20px}
      .cta-box{padding:30px 24px}.cta-box h2{font-size:25px}.cta-actions{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:27px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
      .mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:60;background:#fff;border-top:1px solid var(--line);padding:9px 14px;gap:9px;box-shadow:0 -8px 25px rgba(38,75,140,.1)}
      .mobile-bar a{flex:1;text-align:center;min-height:42px;padding:8px;border-radius:9px;font-size:13px;font-weight:800}
      .mobile-bar a:first-child{background:var(--blue);color:#fff}.mobile-bar a:last-child{background:var(--blue-soft);color:var(--blue)}
      body{padding-bottom:62px}
    }
    @media(max-width:520px){
      .brand-text{font-size:14px}.brand-mark{width:34px;height:34px}.hero-actions a{width:100%}
      .verify-bar{grid-template-columns:1fr}.verify-item{border-right:0!important;border-bottom:1px solid var(--line)!important}.verify-item:last-child{border-bottom:0!important}
      .version-panel,.notice-panel{padding:20px}.version-table{min-width:580px}.version-panel{overflow-x:auto}
      .compare{display:block;overflow-x:auto;white-space:nowrap}.compare th,.compare td{padding:14px 16px}
      .footer-grid{grid-template-columns:1fr}.visual-overlay{padding:20px}
    }

/* roulang page: category1 */
:root{
      --blue:#315fd5;
      --blue-dark:#2347aa;
      --blue-soft:#eaf1ff;
      --cyan:#e8f7fa;
      --ink:#17233d;
      --muted:#66738c;
      --line:#dfe7f3;
      --paper:#ffffff;
      --bg:#f7faff;
      --green:#258a68;
      --amber:#ad7416;
      --shadow:0 18px 50px rgba(38,75,140,.10);
      --shadow-sm:0 8px 24px rgba(38,75,140,.08);
      --radius:18px;
    }
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}
    a{text-decoration:none;color:inherit}
    img{display:block;max-width:100%}
    button{font:inherit;cursor:pointer}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
    .nav-wrap{height:76px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:11px;min-width:260px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:18px;box-shadow:0 8px 18px rgba(49,95,213,.24)}
    .brand-text{font-size:16px;line-height:1.25}
    .nav-links{display:flex;align-items:center;gap:25px;margin-left:auto}
    .nav-links a{font-size:14px;color:#65728a;transition:.2s;white-space:nowrap}
    .nav-links a:hover,.nav-links a.active{color:var(--blue)}
    .nav-cta,.btn-primary{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:11px;background:var(--blue);color:#fff;font-weight:700;border:1px solid var(--blue);transition:.2s;box-shadow:0 8px 18px rgba(49,95,213,.16)}
    .nav-cta:hover,.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(49,95,213,.22)}
    .btn-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 21px;border-radius:11px;background:#fff;color:var(--blue);font-weight:700;border:1px solid #b8c9ed;transition:.2s}
    .btn-secondary:hover{border-color:var(--blue);background:var(--blue-soft);transform:translateY(-2px)}
    a:focus-visible,button:focus-visible{outline:3px solid #8bb3ff;outline-offset:3px}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:25px}
    .page-intro{padding:68px 0 64px;background:linear-gradient(135deg,#f6f9ff 0%,#eaf2ff 58%,#f4fbfc 100%)}
    .intro-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:54px;align-items:center}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:#7b89a0;font-size:13px;margin-bottom:22px}
    .breadcrumb a{color:var(--blue)}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.04em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--blue);border-radius:2px}
    h1{font-size:clamp(32px,4.5vw,58px);line-height:1.18;letter-spacing:-.055em;margin:12px 0 20px;font-weight:800}
    .intro-copy{font-size:17px;color:var(--muted);max-width:670px;margin:0 0 27px}
    .intro-tags{display:flex;flex-wrap:wrap;gap:9px}
    .tag,.status{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border-radius:999px;font-size:12px;font-weight:700}
    .tag{background:#fff;color:#536684;border:1px solid #d6e1f2}
    .status-green{background:#e8f7f0;color:var(--green)}
    .status-wait{background:#fff5df;color:var(--amber)}
    .intro-image{height:310px;border-radius:25px;overflow:hidden;box-shadow:var(--shadow);border:7px solid rgba(255,255,255,.72);background:#dce9fb}
    .intro-image img{width:100%;height:100%;object-fit:cover}
    section{padding:84px 0}
    .white-section{background:#fff}
    .soft-section{background:#eef5ff}
    .section-head{max-width:750px;margin-bottom:32px}
    .section-head h2{font-size:clamp(27px,3vw,40px);line-height:1.3;letter-spacing:-.04em;margin:12px 0;font-weight:800}
    .section-head p{color:var(--muted);font-size:15px;margin:0}
    .filter-bar{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 24px}
    .filter{padding:9px 15px;border:1px solid #cbd9ef;border-radius:999px;background:#fff;color:#596b88;font-size:13px;font-weight:700}
    .filter.active{background:var(--blue);color:#fff;border-color:var(--blue)}
    .version-list{display:grid;gap:16px}
    .version-row{display:grid;grid-template-columns:1.25fr .9fr .9fr auto;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:21px 24px;box-shadow:var(--shadow-sm);transition:.2s}
    .version-row:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    .version-row h3{margin:0 0 5px;font-size:18px}
    .version-row p,.data-label{margin:0;color:var(--muted);font-size:13px}
    .data-value{font-size:14px;font-weight:700;color:#334665}
    .row-action{white-space:nowrap;color:var(--blue);font-size:13px;font-weight:800}
    .notice{margin-top:16px;padding:14px 17px;border-radius:12px;background:#f7faff;border:1px dashed #c7d7ef;color:#64748e;font-size:13px}
    .steps-layout{display:grid;grid-template-columns:1fr .78fr;gap:28px;align-items:start}
    .step-list{display:grid;gap:12px}
    .step-item{display:grid;grid-template-columns:45px 1fr;gap:16px;align-items:start;background:#fff;border:1px solid var(--line);padding:20px;border-radius:15px;box-shadow:var(--shadow-sm)}
    .step-number{width:36px;height:36px;border-radius:11px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:800}
    .step-item h3{font-size:17px;margin:0 0 4px}
    .step-item p{font-size:13px;color:var(--muted);margin:0}
    .side-note{background:#244fae;color:#fff;border-radius:18px;padding:28px;box-shadow:var(--shadow);background-image:linear-gradient(140deg,rgba(36,79,174,.96),rgba(49,95,213,.88)),url('/assets/images/18d1d5030326afea.jpg');background-size:cover;background-position:center}
    .side-note h3{font-size:23px;line-height:1.35;margin:10px 0 12px}
    .side-note p{color:#dbe6ff;font-size:14px}
    .side-note ul{padding:0;margin:20px 0 0;list-style:none}
    .side-note li{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.18);font-size:13px}
    .side-note li:last-child{border:0}
    .device-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-sm)}
    .device-table{width:100%;min-width:700px;border-collapse:collapse}
    .device-table th,.device-table td{text-align:left;padding:17px 20px;border-bottom:1px solid var(--line);font-size:14px}
    .device-table th{color:#526481;background:#f4f8ff;font-size:13px}
    .device-table tr:last-child td{border-bottom:0}
    .safety-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .safety-card,.article-card,.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .safety-card{padding:29px}
    .safety-card h3{font-size:21px;margin:0 0 14px}
    .check-list{list-style:none;padding:0;margin:0}
    .check-list li{position:relative;padding:12px 0 12px 28px;border-bottom:1px solid #e3ebf6;font-size:14px;color:#586984}
    .check-list li:last-child{border:0}
    .check-list li:before{content:"✓";position:absolute;left:0;top:11px;color:var(--green);font-weight:800}
    .risk-card{background:#fff8e9;border:1px solid #f1dfb7;border-radius:var(--radius);padding:29px}
    .risk-card h3{font-size:21px;margin:0 0 12px;color:#805c1b}
    .risk-card p{color:#76613b;font-size:14px;margin:0 0 15px}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}
    .article-card{padding:23px;transition:.2s}
    .article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .article-meta{font-size:12px;color:#8492a8;margin-bottom:10px}
    .article-card h3{font-size:18px;line-height:1.45;margin:0 0 9px}
    .article-card p{font-size:13px;color:var(--muted);margin:0}
    .faq-list{max-width:920px;display:grid;gap:11px}
    .faq-item{overflow:hidden}
    .faq-item summary{cursor:pointer;list-style:none;padding:19px 22px;font-size:16px;font-weight:700;display:flex;justify-content:space-between;gap:16px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--blue);font-size:20px;line-height:1}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:14px}
    .bottom-cta{padding:72px 0;background:#fff}
    .cta-box{border-radius:22px;padding:37px 43px;background:linear-gradient(110deg,#eff5ff,#f2fbfc);border:1px solid #d9e7f8;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-box h2{font-size:29px;line-height:1.35;margin:0 0 8px}
    .cta-box p{color:var(--muted);margin:0;font-size:14px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:11px}
    footer{background:#17233d;color:#cbd7eb;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:35px}
    .footer-brand{color:#fff;font-weight:800;font-size:18px;margin-bottom:12px}
    footer p,footer a{font-size:13px;color:#aebbd0;line-height:1.8}
    footer a{display:block;margin:6px 0;transition:.2s}
    footer a:hover{color:#fff}
    .footer-title{color:#fff;font-weight:700;margin-bottom:11px}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);margin-top:38px;padding-top:20px;font-size:12px;color:#8e9db6}
    .mobile-bar{display:none}
    @media(max-width:1024px){
      .nav-wrap{gap:18px}.brand{min-width:220px}.nav-links{gap:14px}
      .intro-grid,.steps-layout,.safety-grid{grid-template-columns:1fr}
      .intro-image{height:270px;max-width:650px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
    }
    @media(max-width:768px){
      .container{width:min(100% - 30px,600px)}
      .nav-wrap{height:68px}.brand{min-width:0}.brand-text{font-size:14px}
      .nav-links{display:none;position:absolute;left:15px;right:15px;top:76px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);align-items:stretch;flex-direction:column;gap:0}
      .nav-links.open{display:flex}.nav-links a{padding:11px 10px;border-bottom:1px solid #edf1f7}.nav-links a:last-child{border:0}
      .nav-cta{text-align:center;margin-top:8px}
      .menu-toggle{display:block;margin-left:auto}
      .page-intro{padding:46px 0 48px}
      section{padding:58px 0}
      .version-row{grid-template-columns:1fr 1fr;gap:12px;padding:18px}
      .version-row .row-action{grid-column:1/-1}
      .article-grid{grid-template-columns:1fr}
      .cta-box{padding:28px 24px;display:block}.cta-actions{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:last-child{grid-column:auto}
      .copyright{display:block}.copyright span{display:block;margin:5px 0}
      .mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:40;background:#fff;border-top:1px solid var(--line);padding:9px 14px;gap:10px;box-shadow:0 -8px 22px rgba(38,75,140,.10)}
      .mobile-bar a{flex:1;min-height:43px}
    }
    @media(max-width:520px){
      h1{font-size:34px}.intro-copy{font-size:15px}
      .version-row{grid-template-columns:1fr}.version-row .row-action{grid-column:auto}
      .step-item{grid-template-columns:37px 1fr;padding:16px}
      .safety-card,.risk-card{padding:22px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:last-child{grid-column:auto}
      .cta-actions .btn-primary,.cta-actions .btn-secondary{width:100%}
    }