/* roulang page: index */
:root{
            --orange:#f4a62a;
            --orange-deep:#d87918;
            --coral:#e76f51;
            --ink:#202522;
            --green:#153c35;
            --green-2:#0e2b27;
            --cream:#fffaf0;
            --paper:#f6f2e9;
            --muted:#6f756f;
            --line:#e8e1d5;
            --white:#ffffff;
            --shadow:0 18px 45px rgba(33,39,34,.10);
            --shadow-sm:0 8px 24px rgba(33,39,34,.08);
            --radius:18px;
            --radius-sm:12px;
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button:focus,a:focus,input:focus{outline:3px solid rgba(244,166,42,.42);outline-offset:3px}
        .container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(14,43,39,.97);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 5px 24px rgba(0,0,0,.12)}
        .nav-shell{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:17px;box-shadow:inset 0 -4px 0 rgba(0,0,0,.12)}
        .brand-name{font-size:18px}
        .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
        .main-nav a{color:#dce6df;padding:10px 14px;border-radius:10px;font-size:14px}
        .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(244,166,42,.13)}
        .main-nav a.active{box-shadow:inset 0 -3px var(--orange)}
        .nav-actions{display:flex;align-items:center;gap:10px}
        .nav-search{width:145px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:9px;padding:9px 11px;color:#fff}
        .nav-search::placeholder{color:#bfcac2}
        .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;line-height:1.3;transition:.25s ease;border:0;cursor:pointer}
        .button.primary{background:var(--orange);color:var(--green)}
        .button.primary:hover{background:#ffc04f;transform:translateY(-2px);box-shadow:0 8px 18px rgba(244,166,42,.26)}
        .button.ghost{background:transparent;border:1px solid rgba(255,255,255,.28);color:#fff}
        .button.ghost:hover{border-color:var(--orange);color:var(--orange)}
        .menu-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.25);padding:8px 11px;border-radius:8px}
        .hero{background:var(--green);color:#fff;padding:78px 0 72px;overflow:hidden;position:relative}
        .hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(244,166,42,.22);border-radius:50%;right:-130px;top:-120px;box-shadow:0 0 0 35px rgba(244,166,42,.04),0 0 0 70px rgba(244,166,42,.03)}
        .hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:60px;align-items:center;position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase}
        .eyebrow:before{content:"";width:24px;height:3px;background:var(--orange);border-radius:5px}
        h1,h2,h3{margin:0 0 14px;line-height:1.22;letter-spacing:-.7px}
        h1{font-size:clamp(36px,5vw,66px);max-width:680px}
        h2{font-size:clamp(26px,3vw,40px)}
        h3{font-size:20px}
        .hero-copy{color:#d8e1da;font-size:17px;max-width:650px;margin:22px 0 28px}
        .hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
        .hero-visual{position:relative;min-height:360px;border-radius:24px;overflow:hidden;background:#203f37;box-shadow:var(--shadow)}
        .hero-visual img{width:100%;height:100%;min-height:360px;object-fit:cover;opacity:.72}
        .visual-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(14,43,39,.05),rgba(14,43,39,.88))}
        .play-panel{position:absolute;left:28px;right:28px;bottom:25px;border:1px solid rgba(255,255,255,.2);background:rgba(14,43,39,.83);border-radius:16px;padding:18px}
        .status-line{display:flex;justify-content:space-between;align-items:center;color:#e8eee9;font-size:13px}
        .status-dot{display:inline-block;width:8px;height:8px;background:var(--coral);border-radius:50%;margin-right:7px;box-shadow:0 0 0 5px rgba(231,111,81,.14)}
        .progress{height:5px;background:rgba(255,255,255,.2);border-radius:9px;margin:16px 0 9px;overflow:hidden}
        .progress span{display:block;width:64%;height:100%;background:var(--orange)}
        .timecode{display:flex;justify-content:space-between;color:#bfcac2;font-size:12px}
        .section{padding:82px 0}
        .section.alt{background:var(--cream)}
        .section.dark{background:var(--green);color:#fff}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
        .section-head p{max-width:620px;color:var(--muted);margin:0}
        .dark .section-head p{color:#c8d4cd}
        .quick-strip{background:#102f2a;color:#fff;padding:22px 0;border-bottom:1px solid rgba(255,255,255,.08)}
        .quick-row{display:flex;gap:18px;align-items:center}
        .quick-label{font-weight:800;color:var(--orange);white-space:nowrap}
        .quick-form{display:flex;flex:1;gap:8px}
        .quick-form input{flex:1;min-width:0;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;border-radius:9px;padding:11px 14px}
        .quick-form input::placeholder{color:#b9c8bf}
        .tag-list{display:flex;gap:8px;flex-wrap:wrap}
        .tag{display:inline-flex;padding:7px 12px;border:1px solid var(--line);background:#fff;border-radius:99px;color:#536059;font-size:13px}
        .tag.selected{background:var(--orange);border-color:var(--orange);color:var(--green);font-weight:700}
        .quick-strip .tag{border-color:rgba(255,255,255,.16);background:transparent;color:#d9e5dd}
        .quick-strip .tag:hover{border-color:var(--orange);color:var(--orange)}
        .feature-grid{display:grid;grid-template-columns:1.25fr .88fr .88fr;gap:18px}
        .feature-card,.content-card,.quote-card,.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow-sm);transition:.25s ease}
        .feature-card:hover,.content-card:hover,.info-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .feature-card.feature-main{background:var(--orange);border-color:var(--orange);padding:31px}
        .feature-card p,.content-card p,.info-card p{color:var(--muted);margin:0}
        .feature-main p{color:#4b3c1e}
        .feature-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:var(--green);color:var(--orange);font-weight:900;margin-bottom:23px}
        .feature-card:not(.feature-main) .feature-icon{background:#edf4ed}
        .scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
        .scene-image{border-radius:22px;overflow:hidden;position:relative;box-shadow:var(--shadow)}
        .scene-image img{width:100%;height:420px;object-fit:cover}
        .scene-note{position:absolute;left:20px;bottom:20px;background:#fff;padding:14px 17px;border-radius:12px;box-shadow:var(--shadow-sm);font-weight:700}
        .scene-list{display:grid;gap:18px;margin-top:24px}
        .scene-item{display:flex;gap:15px;padding-bottom:17px;border-bottom:1px solid var(--line)}
        .scene-num{width:29px;height:29px;flex:0 0 29px;border-radius:50%;display:grid;place-items:center;background:var(--orange);color:var(--green);font-weight:800}
        .scene-item strong{display:block;margin-bottom:3px}
        .scene-item span{color:var(--muted);font-size:14px}
        .content-feature{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:18px}
        .content-card{padding:0;overflow:hidden}
        .content-card img{width:100%;height:160px;object-fit:cover}
        .content-card.large img{height:240px}
        .card-body{padding:21px}
        .card-meta{display:flex;justify-content:space-between;gap:10px;color:#858b85;font-size:12px;margin-bottom:10px}
        .hot{color:var(--coral);font-weight:700}
        .timeline{border-left:2px solid #d9c9a7;margin-left:13px;padding-left:28px;display:grid;gap:24px}
        .timeline-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px}
        .timeline-item:before{content:"";position:absolute;left:-38px;top:23px;width:15px;height:15px;border-radius:50%;background:var(--orange);border:4px solid var(--cream)}
        .timeline-item time{display:block;color:var(--coral);font-size:12px;font-weight:800;margin-bottom:4px}
        .trust-band{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:20px;align-items:stretch}
        .trust-lead{background:var(--green);color:#fff;border-radius:var(--radius);padding:30px}
        .trust-lead p{color:#cbd8d0;margin:0}
        .quote-card{position:relative}
        .quote-card:before{content:"“";font-size:52px;line-height:1;color:var(--orange);font-weight:900}
        .quote-card p{font-size:15px;color:#4e5951;margin:0 0 15px}
        .quote-card small{color:var(--muted)}
        .compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
        .compare-col{padding:28px}
        .compare-col:first-child{background:#f0ece3;border-right:1px solid var(--line)}
        .compare-col h3{font-size:18px}
        .compare-col ul{padding:0;margin:20px 0 0;list-style:none}
        .compare-col li{padding:11px 0;border-bottom:1px solid rgba(90,90,70,.12);color:var(--muted)}
        .compare-col li:last-child{border-bottom:0}
        .compare-col li:before{content:"•";color:var(--coral);font-weight:bold;margin-right:9px}
        .evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .evidence-card{background:var(--cream);border:1px solid var(--line);border-radius:14px;padding:24px}
        .evidence-card .mini-label{color:var(--orange-deep);font-size:12px;font-weight:800}
        .evidence-card p{color:var(--muted);font-size:14px;margin-bottom:18px}
        .text-link{color:var(--orange-deep);font-weight:800;font-size:14px}
        .faq-list{max-width:900px;margin:0 auto}
        .faq-list details{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:12px;padding:0 20px}
        .faq-list summary{cursor:pointer;list-style:none;font-weight:700;padding:18px 0;position:relative;padding-right:30px}
        .faq-list summary::-webkit-details-marker{display:none}
        .faq-list summary:after{content:"+";position:absolute;right:0;color:var(--orange-deep);font-size:22px}
        .faq-list details[open] summary:after{content:"−"}
        .faq-list details p{color:var(--muted);padding:0 0 18px;margin:0;font-size:14px}
        .assurance{background:var(--green);color:#fff;border-radius:22px;padding:32px;display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center}
        .assurance p{color:#cbd8d0;margin:0}
        .check-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .check{border:1px solid rgba(255,255,255,.16);border-radius:11px;padding:13px 15px;color:#e2ebe5;font-size:14px}
        .check:before{content:"✓";color:var(--orange);font-weight:900;margin-right:8px}
        .extension-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .extension-card{padding:23px;border:1px solid var(--line);border-radius:15px;background:#fff}
        .extension-card p{font-size:14px;color:var(--muted);margin:0 0 14px}
        .site-footer{background:#0e2b27;color:#d7e1da;padding:58px 0 88px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px}
        .footer-brand{color:#fff;font-size:20px;font-weight:800;margin-bottom:12px}
        .footer-copy{color:#aebdb4;max-width:330px;font-size:14px}
        .footer-title{color:var(--orange);font-weight:800;margin-bottom:14px}
        .footer-links{display:grid;gap:8px;font-size:14px;color:#c0cec5}
        .footer-links a:hover{color:var(--orange)}
        .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:38px;padding-top:20px;color:#8ea198;font-size:12px}
        .bottom-cta{position:fixed;bottom:0;left:0;right:0;z-index:30;background:rgba(14,43,39,.97);border-top:1px solid rgba(244,166,42,.35);padding:12px 0}
        .bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
        .bottom-inner strong{color:#fff}.bottom-inner span{color:#bfcac2;font-size:13px;margin-left:12px}
        @media(max-width:1024px){
            .main-nav{gap:0}.main-nav a{padding:9px 8px}.nav-search{display:none}
            .hero-grid{gap:30px}.content-feature{grid-template-columns:1fr 1fr}.content-card.large{grid-column:span 2}
            .trust-band{grid-template-columns:1fr 1fr}.trust-lead{grid-column:span 2}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 28px))}
            .nav-shell{min-height:68px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:14px;right:14px;top:68px;background:var(--green-2);padding:12px;border-radius:0 0 14px 14px;box-shadow:var(--shadow)}
            .main-nav.open{display:grid}.main-nav a{padding:12px 14px}.nav-actions{display:none}
            .hero{padding:54px 0}.hero-grid,.scene-grid,.assurance{grid-template-columns:1fr}.hero-visual{min-height:300px}.hero-visual img{min-height:300px}
            .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
            .quick-row{display:block}.quick-label{display:block;margin-bottom:12px}.quick-form{margin-bottom:13px}
            .feature-grid,.evidence-grid,.extension-grid{grid-template-columns:1fr}.feature-main{min-height:0}
            .content-feature{grid-template-columns:1fr}.content-card.large{grid-column:auto}
            .content-card img,.content-card.large img{height:190px}
            .trust-band{grid-template-columns:1fr}.trust-lead{grid-column:auto}.compare{grid-template-columns:1fr}.compare-col:first-child{border-right:0;border-bottom:1px solid var(--line)}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:span 2}
            .bottom-inner{display:block}.bottom-inner span{display:block;margin:4px 0 8px}.bottom-cta .button{width:100%}
        }
        @media(max-width:520px){
            h1{font-size:35px}.hero-copy{font-size:15px}.hero-buttons .button{width:100%}
            .scene-image img{height:300px}.check-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
            .bottom-cta{padding:10px 0}.bottom-inner strong{font-size:14px}
        }

/* roulang page: category1 */
:root{
      --orange:#f4a62a;--orange-deep:#d87918;--coral:#e76f51;--ink:#202522;
      --green:#153c35;--green-2:#0e2b27;--cream:#fffaf0;--paper:#f6f2e9;
      --muted:#6f756f;--line:#e8e1d5;--white:#fff;--shadow:0 18px 45px rgba(33,39,34,.10);
      --shadow-sm:0 8px 24px rgba(33,39,34,.08);--radius:18px;--radius-sm:12px;--max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%}
    button,input,select{font:inherit}
    button:focus,a:focus,input:focus,select:focus{outline:3px solid rgba(244,166,42,.45);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(14,43,39,.97);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 5px 24px rgba(0,0,0,.12)}
    .nav-shell{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:17px;box-shadow:inset 0 -4px 0 rgba(0,0,0,.12)}
    .brand-name{font-size:18px}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{color:#dce6df;padding:10px 14px;border-radius:10px;font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(244,166,42,.13)}
    .main-nav a.active{box-shadow:inset 0 -3px var(--orange)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{width:145px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:9px;padding:9px 11px;color:#fff}
    .nav-search::placeholder{color:#bfcac2}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;line-height:1.3;transition:.25s ease;border:0;cursor:pointer}
    .button.primary{background:var(--orange);color:var(--green)}
    .button.primary:hover{background:#ffc04f;transform:translateY(-2px);box-shadow:0 8px 18px rgba(244,166,42,.26)}
    .button.ghost{background:transparent;border:1px solid rgba(255,255,255,.28);color:#fff}
    .button.ghost:hover{border-color:var(--orange);color:var(--orange)}
    .menu-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.25);padding:8px 11px;border-radius:8px}
    .category-hero{position:relative;overflow:hidden;padding:72px 0 66px;background:var(--green);color:#fff}
    .category-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,43,39,.94),rgba(14,43,39,.62)),url("/assets/images/4c5abd1b973d4247.jpg") center/cover}
    .category-hero:after{content:"";position:absolute;width:390px;height:390px;border:1px solid rgba(244,166,42,.24);border-radius:50%;right:-150px;top:-160px;box-shadow:0 0 0 35px rgba(244,166,42,.05),0 0 0 70px rgba(244,166,42,.035)}
    .hero-inner{position:relative;z-index:1;max-width:780px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:1.5px}
    .eyebrow:before{content:"";width:24px;height:3px;background:var(--orange);border-radius:4px}
    h1,h2,h3{line-height:1.25;margin:0 0 16px;letter-spacing:-.5px}
    h1{font-size:clamp(34px,5vw,62px);margin-top:18px}
    h2{font-size:clamp(25px,3vw,36px)}
    h3{font-size:21px}
    .hero-inner p{max-width:700px;color:#d9e4dc;font-size:17px;margin:0 0 28px}
    .hero-meta{display:flex;gap:10px;flex-wrap:wrap}
    .status{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border:1px solid rgba(255,255,255,.2);border-radius:99px;color:#e0ebe3;font-size:13px}
    .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange)}
    .section{padding:76px 0}
    .section.alt{background:var(--cream)}
    .section.dark{background:var(--green);color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:28px}
    .section-head p{max-width:620px;color:var(--muted);margin:0}
    .dark .section-head p{color:#c8d4cd}
    .filter-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
    .filter-row{display:grid;grid-template-columns:1.4fr .8fr .8fr auto;gap:12px;align-items:end}
    .field label{display:block;font-size:13px;font-weight:700;color:#59625c;margin-bottom:7px}
    .field input,.field select{width:100%;height:46px;border:1px solid var(--line);border-radius:9px;background:#fff;padding:0 13px;color:var(--ink)}
    .filter-note{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:16px;padding-top:15px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
    .tag-list{display:flex;gap:8px;flex-wrap:wrap}
    .tag{display:inline-flex;padding:6px 11px;border:1px solid var(--line);background:#fff;border-radius:99px;color:#536059;font-size:13px}
    .tag.selected{background:var(--orange);border-color:var(--orange);color:var(--green);font-weight:700}
    .list-layout{display:grid;grid-template-columns:1.55fr .85fr;gap:24px;align-items:start}
    .video-list{display:grid;gap:16px}
    .video-card{display:grid;grid-template-columns:210px 1fr;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:13px;box-shadow:var(--shadow-sm);transition:.25s ease}
    .video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .thumb{position:relative;min-height:146px;border-radius:13px;overflow:hidden;background:var(--green)}
    .thumb img{width:100%;height:100%;min-height:146px;object-fit:cover}
    .play-dot{position:absolute;left:16px;bottom:14px;width:39px;height:39px;display:grid;place-items:center;border-radius:50%;background:var(--orange);color:var(--green);font-weight:900}
    .duration{position:absolute;right:10px;bottom:10px;background:rgba(14,43,39,.88);color:#fff;border-radius:6px;padding:3px 7px;font-size:12px}
    .video-body{padding:5px 8px 5px 0}
    .video-body h3{font-size:20px;margin:10px 0 8px}
    .video-body p{font-size:14px;color:var(--muted);margin:0 0 14px}
    .meta-line{display:flex;justify-content:space-between;gap:10px;color:#858b85;font-size:12px}
    .side-card{background:var(--green);color:#fff;border-radius:var(--radius);padding:25px;position:sticky;top:100px;overflow:hidden}
    .side-card:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(244,166,42,.25);border-radius:50%;right:-80px;bottom:-90px}
    .side-card p{color:#cbd8cf;font-size:14px}
    .side-list{display:grid;gap:14px;margin-top:22px}
    .side-item{display:flex;gap:11px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.14)}
    .side-item b{color:var(--orange);font-size:20px}
    .side-item span{font-size:14px;color:#d5e0d8}
    .featured-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;gap:18px}
    .featured-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.25s}
    .featured-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .featured-card img{height:155px;width:100%;object-fit:cover}
    .featured-card.large img{height:250px}
    .card-body{padding:20px}
    .card-body p{color:var(--muted);font-size:14px;margin:0 0 14px}
    .card-meta{display:flex;justify-content:space-between;color:#858b85;font-size:12px;margin-bottom:8px}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .timeline-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:21px;position:relative}
    .timeline-item:before{content:"";display:block;width:10px;height:10px;background:var(--orange);border-radius:50%;margin-bottom:15px;box-shadow:0 0 0 6px #fff1d2}
    .timeline-item strong{display:block;margin-bottom:5px}
    .timeline-item span{color:var(--muted);font-size:14px}
    .scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
    .scene-image{border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
    .scene-image img{width:100%;height:365px;object-fit:cover}
    .scene-list{display:grid;gap:17px}
    .scene-item{display:flex;gap:14px;padding-bottom:16px;border-bottom:1px solid var(--line)}
    .scene-number{width:32px;height:32px;flex:none;display:grid;place-items:center;border-radius:10px;background:var(--orange);color:var(--green);font-weight:800}
    .scene-item strong{display:block;margin-bottom:3px}
    .scene-item span{font-size:14px;color:var(--muted)}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:45px;align-items:start}
    .faq-intro p{color:var(--muted)}
    .accordion{margin:0;background:transparent}
    .accordion-item{border:1px solid var(--line)!important;border-radius:10px!important;margin-bottom:10px;overflow:hidden;background:#fff}
    .accordion-title{font-weight:700;color:var(--ink);border:0!important;padding:17px 20px!important}
    .accordion-title:hover{background:#fff7e5;color:var(--orange-deep)}
    .accordion-content{border-top:1px solid var(--line)!important;background:#fff;padding:17px 20px!important;color:var(--muted)}
    .more-band{background:var(--orange);padding:30px;border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--green)}
    .more-band p{margin:0;color:#4b3c1e}
    .more-band .button{background:var(--green);color:#fff}
    .site-footer{background:var(--green-2);color:#fff;padding:55px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:45px;padding-bottom:35px}
    .footer-brand{font-size:21px;font-weight:800;color:var(--orange);margin-bottom:12px}
    .footer-copy{color:#bdcbc1;max-width:370px;margin:0}
    .footer-title{font-weight:800;margin-bottom:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c5d1c9;font-size:14px}
    .footer-links a:hover{color:var(--orange)}
    .copyright{padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#9eafa4}
    .floating-bar{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:15;width:min(680px,calc(100% - 30px));display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 14px 12px 20px;background:rgba(14,43,39,.96);border:1px solid rgba(244,166,42,.35);border-radius:14px;box-shadow:0 12px 35px rgba(0,0,0,.2);color:#fff}
    .floating-bar span{font-size:14px;color:#e1ebe3}
    @media(max-width:1024px){
      .nav-actions{display:none}.filter-row{grid-template-columns:1fr 1fr}.filter-row .button{width:100%}
      .list-layout{grid-template-columns:1fr}.side-card{position:relative;top:auto}.featured-grid{grid-template-columns:1fr 1fr}.featured-card.large{grid-column:span 2}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 28px))}
      .nav-shell{min-height:68px}.brand-name{font-size:16px}.menu-toggle{display:block;margin-left:auto}
      .main-nav{display:none;position:absolute;left:14px;right:14px;top:68px;padding:10px;background:var(--green-2);border:1px solid rgba(255,255,255,.13);border-radius:12px;box-shadow:var(--shadow)}
      .main-nav.is-open{display:grid}.main-nav a{padding:12px 14px}
      .category-hero{padding:58px 0}.section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:10px}
      .video-card{grid-template-columns:150px 1fr;gap:14px}.thumb,.thumb img{min-height:120px}.video-body h3{font-size:17px}
      .featured-grid,.timeline{grid-template-columns:1fr}.featured-card.large{grid-column:auto}
      .scene-grid,.faq-grid{grid-template-columns:1fr;gap:28px}.scene-image img{height:280px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:span 2}
    }
    @media(max-width:520px){
      h1{font-size:36px}.hero-meta{gap:7px}.filter-row{grid-template-columns:1fr}.video-card{grid-template-columns:1fr}.thumb,.thumb img{height:180px;min-height:180px}
      .more-band{display:block}.more-band .button{margin-top:16px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
      .floating-bar{bottom:10px;padding:10px 11px 10px 14px}.floating-bar span{font-size:12px}.floating-bar .button{padding:10px 13px;font-size:13px}
    }

/* roulang page: category2 */
:root{
        --orange:#f4a62a;
        --orange-deep:#d87918;
        --coral:#e76f51;
        --ink:#202522;
        --green:#153c35;
        --green-2:#0e2b27;
        --cream:#fffaf0;
        --paper:#f6f2e9;
        --muted:#6f756f;
        --line:#e8e1d5;
        --white:#fff;
        --shadow:0 18px 45px rgba(33,39,34,.10);
        --shadow-sm:0 8px 24px rgba(33,39,34,.08);
        --radius:18px;
        --radius-sm:12px;
        --max:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button:focus,a:focus,input:focus{outline:3px solid rgba(244,166,42,.42);outline-offset:3px}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.3;letter-spacing:-.03em}
    .container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(14,43,39,.97);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 5px 24px rgba(0,0,0,.12)}
    .nav-shell{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:17px;box-shadow:inset 0 -4px 0 rgba(0,0,0,.12)}
    .brand-name{font-size:18px}
    .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
    .main-nav a{color:#dce6df;padding:10px 14px;border-radius:10px;font-size:14px}
    .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(244,166,42,.13)}
    .main-nav a.active{box-shadow:inset 0 -3px var(--orange)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-search{width:145px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:9px;padding:9px 11px;color:#fff}
    .nav-search::placeholder{color:#bfcac2}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;line-height:1.3;transition:.25s ease;border:0;cursor:pointer}
    .button.primary{background:var(--orange);color:var(--green)}
    .button.primary:hover{background:#ffc04f;transform:translateY(-2px);box-shadow:0 8px 18px rgba(244,166,42,.26)}
    .button.ghost{background:transparent;border:1px solid rgba(255,255,255,.28);color:#fff}
    .button.ghost:hover{border-color:var(--orange);color:var(--orange)}
    .menu-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.25);padding:8px 11px;border-radius:8px}
    .page-intro{padding:72px 0 66px;background:var(--green);color:#fff;position:relative;overflow:hidden}
    .page-intro:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(244,166,42,.25);border-radius:50%;right:-150px;top:-170px;box-shadow:0 0 0 36px rgba(244,166,42,.04),0 0 0 72px rgba(244,166,42,.025)}
    .intro-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:54px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:1.5px}
    .eyebrow:before{content:"";width:24px;height:3px;background:var(--orange);border-radius:5px}
    .page-intro h1{font-size:clamp(34px,5vw,58px);margin:18px 0 20px;color:#fff}
    .intro-copy{max-width:680px;color:#d8e1da;font-size:17px;margin-bottom:0}
    .intro-image{height:300px;border-radius:22px;overflow:hidden;border:1px solid rgba(255,255,255,.17);box-shadow:var(--shadow)}
    .intro-image img{width:100%;height:100%;object-fit:cover;opacity:.78}
    .section{padding:76px 0}
    .section.alt{background:var(--cream)}
    .section.dark{background:var(--green);color:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section-head h2{font-size:clamp(25px,3vw,36px);margin-bottom:8px}
    .section-head p{max-width:650px;color:var(--muted);margin-bottom:0}
    .dark .section-head p{color:#c8d4cd}
    .tag-list{display:flex;flex-wrap:wrap;gap:10px}
    .tag{display:inline-flex;align-items:center;padding:8px 15px;border:1px solid var(--line);background:#fff;border-radius:99px;color:#536059;font-size:14px}
    .tag:hover,.tag.selected{background:var(--orange);border-color:var(--orange);color:var(--green);font-weight:700}
    .index-panel{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;padding:26px 30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .index-label{font-size:13px;color:var(--muted);font-weight:700;margin-bottom:12px}
    .index-note{color:var(--muted);font-size:14px;margin:0;white-space:nowrap}
    .featured-layout{display:grid;grid-template-columns:1.35fr .85fr;gap:20px}
    .feature-large,.feature-small{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--green);color:#fff;min-height:400px}
    .feature-small{min-height:190px}
    .feature-large img,.feature-small img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;transition:.35s ease}
    .feature-large:hover img,.feature-small:hover img{transform:scale(1.04);opacity:.75}
    .feature-overlay{position:absolute;inset:0;padding:30px;display:flex;flex-direction:column;justify-content:flex-end;background:linear-gradient(0deg,rgba(14,43,39,.93),rgba(14,43,39,.05) 75%)}
    .feature-overlay h3{font-size:27px;margin:12px 0 9px;color:#fff}
    .feature-small .feature-overlay{padding:22px}
    .feature-small .feature-overlay h3{font-size:20px}
    .feature-stack{display:grid;gap:20px}
    .badge{display:inline-flex;align-items:center;width:max-content;padding:5px 10px;border-radius:6px;background:var(--orange);color:var(--green);font-size:12px;font-weight:800}
    .feature-overlay p{color:#dce6df;margin:0;font-size:14px}
    .editorial-list{display:grid;gap:16px}
    .editorial-item{display:grid;grid-template-columns:190px 1fr auto;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px;transition:.25s ease}
    .editorial-item:hover{transform:translateX(5px);box-shadow:var(--shadow-sm);border-color:#ddd0bc}
    .editorial-thumb{height:125px;border-radius:10px;overflow:hidden}
    .editorial-thumb img{width:100%;height:100%;object-fit:cover}
    .editorial-item h3{font-size:20px;margin:8px 0 6px}
    .editorial-item p{font-size:14px;color:var(--muted);margin:0;max-width:620px}
    .meta-line{display:flex;gap:14px;flex-wrap:wrap;color:#898e87;font-size:12px}
    .item-arrow{width:38px;height:38px;border-radius:50%;background:#edf4ed;color:var(--green);display:grid;place-items:center;font-size:20px}
    .item-arrow:hover{background:var(--orange)}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .timeline:before{content:"";position:absolute;left:8%;right:8%;top:25px;height:2px;background:rgba(244,166,42,.42)}
    .timeline-card{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:24px 22px}
    .timeline-dot{width:16px;height:16px;border:4px solid var(--cream);background:var(--orange);border-radius:50%;box-shadow:0 0 0 1px var(--orange);margin-bottom:22px}
    .timeline-card h3{font-size:18px;margin-bottom:9px}
    .timeline-card p{font-size:14px;color:var(--muted);margin:0}
    .guide-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:44px;align-items:center}
    .guide-visual{min-height:330px;border-radius:20px;overflow:hidden;position:relative;box-shadow:var(--shadow)}
    .guide-visual img{width:100%;height:100%;min-height:330px;object-fit:cover}
    .guide-copy h2{font-size:32px;margin-bottom:14px}
    .guide-copy>p{color:var(--muted);margin-bottom:23px}
    .guide-points{display:grid;gap:12px}
    .guide-point{display:flex;gap:13px;align-items:flex-start;padding:15px 0;border-bottom:1px solid var(--line)}
    .guide-point strong{display:block;font-size:16px}
    .guide-point span{color:var(--muted);font-size:14px}
    .point-no{flex:0 0 31px;height:31px;border-radius:9px;display:grid;place-items:center;background:var(--orange);color:var(--green);font-weight:800}
    .faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}
    .faq-intro h2{font-size:32px;margin-bottom:13px}
    .faq-intro p{color:var(--muted)}
    .faq-list{display:grid;gap:10px}
    .faq-list details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:17px 20px}
    .faq-list summary{cursor:pointer;font-weight:700;padding-right:20px;position:relative}
    .faq-list summary::marker{color:var(--orange-deep)}
    .faq-list details p{margin:12px 0 0;color:var(--muted);font-size:14px;padding-left:18px}
    .more-panel{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:29px 34px;background:var(--orange);border-radius:var(--radius);color:var(--green)}
    .more-panel h2{font-size:25px;margin:0 0 6px}
    .more-panel p{margin:0;color:#57451f}
    .more-panel .button{background:var(--green);color:#fff}
    .more-panel .button:hover{background:var(--green-2);transform:translateY(-2px)}
    .site-footer{background:var(--green-2);color:#dce6df;padding:58px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:50px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand{font-size:21px;color:var(--orange);font-weight:800;margin-bottom:12px}
    .footer-copy{color:#aebdb4;max-width:390px;font-size:14px;margin:0}
    .footer-title{color:#fff;font-weight:700;margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#b9c7bf;font-size:14px}
    .footer-links a:hover{color:var(--orange);padding-left:4px}
    .copyright{padding-top:22px;color:#879a90;font-size:12px}
    @media(max-width:1024px){
        .nav-shell{gap:15px}
        .main-nav a{padding:9px 8px}
        .nav-search{width:115px}
        .intro-grid{gap:30px}
        .editorial-item{grid-template-columns:160px 1fr auto}
    }
    @media(max-width:768px){
        .container{width:min(var(--max),calc(100% - 28px))}
        .nav-shell{min-height:68px}
        .brand-name{font-size:16px}
        .menu-toggle{display:block;margin-left:auto}
        .main-nav{display:none;position:absolute;left:14px;right:14px;top:68px;padding:10px;background:var(--green-2);border:1px solid rgba(255,255,255,.12);border-radius:12px;box-shadow:var(--shadow)}
        .main-nav.open{display:grid}
        .main-nav a{padding:12px 14px}
        .nav-actions{display:none}
        .page-intro{padding:55px 0 52px}
        .intro-grid,.featured-layout,.guide-grid,.faq-layout{grid-template-columns:1fr}
        .intro-image{height:245px}
        .section{padding:58px 0}
        .section-head{display:block;margin-bottom:24px}
        .section-head p{margin-top:10px}
        .index-panel{grid-template-columns:1fr;padding:22px}
        .index-note{white-space:normal}
        .feature-large{min-height:330px}
        .feature-stack{grid-template-columns:1fr 1fr}
        .feature-small{min-height:175px}
        .editorial-item{grid-template-columns:130px 1fr}
        .item-arrow{display:none}
        .timeline{grid-template-columns:1fr}
        .timeline:before{left:8px;top:15px;bottom:15px;width:2px;height:auto}
        .timeline-card{padding-left:30px}
        .timeline-dot{position:absolute;left:-1px;top:18px}
        .guide-visual{min-height:270px}
        .guide-visual img{min-height:270px}
        .more-panel{display:block;padding:25px}
        .more-panel .button{margin-top:20px}
        .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
        .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media(max-width:520px){
        .page-intro h1{font-size:34px}
        .intro-copy{font-size:15px}
        .feature-stack{grid-template-columns:1fr}
        .feature-small{min-height:190px}
        .editorial-item{grid-template-columns:1fr}
        .editorial-thumb{height:170px}
        .footer-grid{grid-template-columns:1fr}
        .footer-grid>div:first-child{grid-column:auto}
        .more-panel h2{font-size:22px}
    }

/* roulang page: category3 */
:root{
            --orange:#f4a62a;
            --orange-deep:#d87918;
            --coral:#e76f51;
            --ink:#202522;
            --green:#153c35;
            --green-2:#0e2b27;
            --cream:#fffaf0;
            --paper:#f6f2e9;
            --muted:#6f756f;
            --line:#e8e1d5;
            --white:#fff;
            --shadow:0 18px 45px rgba(33,39,34,.10);
            --shadow-sm:0 8px 24px rgba(33,39,34,.08);
            --radius:18px;
            --radius-sm:12px;
            --max:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;font-size:16px}
        a{color:inherit;text-decoration:none;transition:.25s ease}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button:focus,a:focus,input:focus{outline:3px solid rgba(244,166,42,.42);outline-offset:3px}
        .container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
        .site-header{position:sticky;top:0;z-index:50;background:rgba(14,43,39,.98);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 5px 24px rgba(0,0,0,.12)}
        .nav-shell{min-height:76px;display:flex;align-items:center;gap:26px}
        .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:11px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:17px;box-shadow:inset 0 -4px 0 rgba(0,0,0,.12)}
        .brand-name{font-size:18px}
        .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
        .main-nav a{color:#dce6df;padding:10px 13px;border-radius:10px;font-size:14px}
        .main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(244,166,42,.13)}
        .main-nav a.active{box-shadow:inset 0 -3px var(--orange)}
        .nav-actions{display:flex;align-items:center;gap:9px}
        .nav-search{width:135px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:9px;padding:9px 11px;color:#fff}
        .nav-search::placeholder{color:#bfcac2}
        .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;line-height:1.3;transition:.25s ease;border:0;cursor:pointer}
        .button.primary{background:var(--orange);color:var(--green)}
        .button.primary:hover{background:#ffc04f;transform:translateY(-2px);box-shadow:0 8px 18px rgba(244,166,42,.26)}
        .button.dark{background:var(--green);color:#fff}
        .button.dark:hover{background:var(--green-2);transform:translateY(-2px)}
        .button.ghost{background:transparent;border:1px solid rgba(255,255,255,.28);color:#fff}
        .button.ghost:hover{border-color:var(--orange);color:var(--orange)}
        .menu-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.25);padding:8px 11px;border-radius:8px}
        .page-hero{position:relative;overflow:hidden;background:var(--green);color:#fff;padding:72px 0 68px}
        .page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,43,39,.96),rgba(14,43,39,.78)),url('/assets/images/4c5abd1b973d4247.jpg') center/cover;opacity:.92}
        .page-hero:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(244,166,42,.28);border-radius:50%;right:-100px;top:-150px;box-shadow:0 0 0 34px rgba(244,166,42,.05),0 0 0 68px rgba(244,166,42,.035)}
        .page-hero .container{position:relative;z-index:1}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:1.3px}
        .eyebrow:before{content:"";width:24px;height:3px;background:var(--orange);border-radius:5px}
        h1,h2,h3{margin:0;color:inherit;line-height:1.22;letter-spacing:-.6px}
        h1{font-size:clamp(34px,5vw,60px);max-width:760px;margin-top:18px}
        h2{font-size:clamp(25px,3vw,36px)}
        h3{font-size:19px}
        .hero-copy{max-width:720px;margin:22px 0 26px;color:#d8e1da;font-size:17px}
        .hero-meta{display:flex;flex-wrap:wrap;gap:10px}
        .status-pill{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border-radius:99px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.15);color:#e7eee9;font-size:13px}
        .status-pill i{width:7px;height:7px;border-radius:50%;background:var(--orange);display:inline-block}
        .section{padding:78px 0}
        .section.alt{background:var(--cream)}
        .section.dark{background:var(--green);color:#fff}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
        .section-head p{max-width:650px;color:var(--muted);margin:0}
        .dark .section-head p{color:#c8d4cd}
        .section-kicker{color:var(--orange-deep);font-size:13px;font-weight:800;letter-spacing:1px;margin-bottom:9px}
        .guide-index{display:grid;grid-template-columns:1.2fr 2fr;gap:24px;align-items:stretch}
        .index-panel{background:var(--green);border-radius:var(--radius);padding:28px;color:#fff;box-shadow:var(--shadow)}
        .index-panel p{color:#c9d7cf;margin:14px 0 0}
        .index-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
        .index-link{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:17px 18px}
        .index-link:hover{border-color:var(--orange);transform:translateY(-3px);box-shadow:var(--shadow-sm)}
        .index-number{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:#fff2d6;color:var(--orange-deep);font-size:13px;font-weight:800}
        .index-link strong{display:block;font-size:15px}
        .index-link span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
        .steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px 21px;min-height:205px;box-shadow:var(--shadow-sm);transition:.25s ease}
        .step-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .step-card:after{content:"";position:absolute;right:18px;top:18px;width:8px;height:8px;border-radius:50%;background:var(--orange)}
        .step-no{font-size:38px;line-height:1;color:var(--orange);font-weight:900;margin-bottom:26px}
        .step-card p{color:var(--muted);font-size:14px;margin:10px 0 0}
        .entry-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:38px;align-items:center}
        .entry-image{border-radius:22px;overflow:hidden;min-height:350px;box-shadow:var(--shadow)}
        .entry-image img{width:100%;height:350px;object-fit:cover}
        .entry-list{display:grid;gap:13px;margin-top:24px}
        .entry-item{display:flex;gap:15px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
        .entry-icon{flex:0 0 36px;height:36px;border-radius:10px;background:var(--orange);color:var(--green);display:grid;place-items:center;font-weight:900}
        .entry-item strong{display:block;margin-bottom:3px}
        .entry-item span{display:block;color:var(--muted);font-size:14px}
        .device-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch}
        .device-copy{background:var(--orange);border-radius:var(--radius);padding:31px;color:#4b3c1e}
        .device-copy p{margin:16px 0 0}
        .device-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
        .device-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px 18px;display:flex;flex-direction:column;justify-content:space-between}
        .device-card strong{font-size:17px;color:var(--ink)}
        .device-card p{color:var(--muted);font-size:14px;margin:17px 0 0}
        .device-mark{width:42px;height:42px;border-radius:12px;background:#edf4ed;color:var(--green);display:grid;place-items:center;font-weight:900;margin-bottom:25px}
        .article-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
        .article-list{display:grid;gap:12px}
        .article-item{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:19px 21px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);transition:.25s ease}
        .article-item:hover{border-color:var(--orange);transform:translateX(4px);box-shadow:var(--shadow-sm)}
        .article-item h3{font-size:17px}
        .article-item p{margin:5px 0 0;color:var(--muted);font-size:14px}
        .article-meta{white-space:nowrap;color:#858b85;font-size:12px}
        .notice-card{background:var(--green);color:#fff;border-radius:var(--radius);padding:29px;position:relative;overflow:hidden}
        .notice-card:before{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(244,166,42,.25);border-radius:50%;right:-55px;bottom:-65px}
        .notice-card p{color:#cbd7d0;margin:14px 0 22px}
        .faq-wrap{max-width:900px;margin:0 auto}
        .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:11px;overflow:hidden}
        .faq-item summary{cursor:pointer;list-style:none;padding:19px 22px;font-weight:800;position:relative;padding-right:52px}
        .faq-item summary::-webkit-details-marker{display:none}
        .faq-item summary:after{content:"+";position:absolute;right:21px;top:14px;color:var(--orange-deep);font-size:25px;font-weight:400}
        .faq-item[open] summary:after{content:"−"}
        .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:14px}
        .guide-cta{background:var(--green-2);color:#fff;padding:34px 0;margin-bottom:72px}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta-inner p{margin:8px 0 0;color:#c8d4cd}
        .site-footer{background:var(--green-2);color:#fff;padding:54px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr;gap:45px;padding-bottom:35px;border-bottom:1px solid rgba(255,255,255,.12)}
        .footer-brand{font-size:21px;font-weight:800;color:var(--orange);margin-bottom:12px}
        .footer-copy{color:#bdcbc2;max-width:430px;margin:0;font-size:14px}
        .footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:13px}
        .footer-links{display:grid;gap:8px}
        .footer-links a{color:#bdcbc2;font-size:14px}
        .footer-links a:hover{color:var(--orange)}
        .copyright{padding-top:21px;color:#87978c;font-size:12px}
        .bottom-bar{position:fixed;z-index:40;bottom:18px;left:50%;transform:translateX(-50%);width:min(720px,calc(100% - 36px));background:rgba(14,43,39,.96);color:#fff;border:1px solid rgba(244,166,42,.35);border-radius:14px;box-shadow:0 14px 35px rgba(0,0,0,.2);padding:10px 12px 10px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}
        .bottom-bar span{font-size:14px;color:#d8e1da}
        .bottom-bar strong{color:var(--orange)}
        @media(max-width:1024px){
            .main-nav a{padding:10px 8px;font-size:13px}
            .nav-search{display:none}
            .steps-grid{grid-template-columns:repeat(2,1fr)}
            .guide-index,.entry-layout,.device-layout,.article-layout{grid-template-columns:1fr}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 28px))}
            .nav-shell{min-height:68px;flex-wrap:wrap;gap:12px}
            .brand-name{font-size:16px}
            .menu-toggle{display:block;margin-left:auto}
            .main-nav{display:none;order:3;flex-basis:100%;flex-direction:column;align-items:stretch;margin:0;padding:8px 0 14px}
            .main-nav.is-open{display:flex}
            .main-nav a{padding:12px 14px}
            .nav-actions{display:none}
            .page-hero{padding:55px 0 52px}
            .section{padding:58px 0}
            .section-head{display:block;margin-bottom:24px}
            .section-head p{margin-top:13px}
            .index-list,.device-list{grid-template-columns:1fr}
            .entry-image,.entry-image img{min-height:260px;height:260px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-grid>div:first-child{grid-column:1/-1}
            .cta-inner{display:block}
            .cta-inner .button{margin-top:20px}
        }
        @media(max-width:520px){
            h1{font-size:35px}
            .hero-copy{font-size:15px}
            .steps-grid{grid-template-columns:1fr}
            .step-card{min-height:0}
            .article-item{display:block}
            .article-meta{display:block;margin-top:10px}
            .footer-grid{grid-template-columns:1fr}
            .footer-grid>div:first-child{grid-column:auto}
            .bottom-bar{bottom:10px;padding:10px 10px 10px 14px}
            .bottom-bar span{font-size:12px}
            .bottom-bar .button{padding:11px 13px;font-size:13px;white-space:nowrap}
        }