/* roulang page: index */
:root{
            --brand:#b45432;
            --brand-deep:#833a29;
            --brand-soft:#f3dfd2;
            --ink:#292a26;
            --muted:#766f65;
            --paper:#fbf8f2;
            --sand:#f2ece2;
            --green:#314c43;
            --line:#ded5c9;
            --white:#fffdf9;
            --shadow:0 16px 40px rgba(71,48,34,.09);
            --radius:16px;
            --container:1180px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(251,248,242,.96);border-bottom:1px solid var(--line)}
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
        .logo-mark{width:38px;height:38px;border:2px solid var(--brand);color:var(--brand);display:grid;place-items:center;border-radius:9px 9px 9px 2px;font-size:13px}
        .logo small{display:block;color:var(--muted);font-size:10px;font-weight:500;letter-spacing:.12em}
        .nav-links{display:flex;align-items:center;gap:30px}
        .nav-links a{font-size:14px;color:var(--muted);padding:27px 0;position:relative;transition:.25s}
        .nav-links a:hover,.nav-links a.active{color:var(--brand)}
        .nav-links a.active:after{content:"";height:3px;width:24px;background:var(--brand);position:absolute;bottom:17px;left:50%;transform:translateX(-50%);border-radius:3px}
        .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:9px;padding:12px 20px;font-weight:700;transition:.25s}
        .header-action,.btn-primary{background:var(--brand);color:#fffaf4}
        .header-action:hover,.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
        .btn-secondary{border:1px solid var(--line);color:var(--ink);background:transparent}
        .btn-secondary:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
        .btn:focus,.header-action:focus,input:focus,textarea:focus{outline:3px solid rgba(180,84,50,.25);outline-offset:3px}
        .menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 11px;color:var(--brand)}
        .hero{min-height:650px;display:flex;align-items:center;background:linear-gradient(90deg,rgba(35,35,30,.88),rgba(35,35,30,.38)),url('/assets/images/backpic/back-1.png') center/cover}
        .hero-inner{padding:90px 0;color:#fffaf4;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
        .eyebrow,.section-label{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--brand);font-weight:800}
        .hero .eyebrow{color:#edb79c}
        h1{font-size:clamp(42px,6vw,76px);line-height:1.13;letter-spacing:-.05em;margin:18px 0 22px;font-weight:800}
        h1 em{color:#e9a17f;font-style:normal}
        .hero-copy{font-size:18px;color:#f2e9df;max-width:620px}
        .hero-actions{display:flex;gap:13px;margin-top:34px;flex-wrap:wrap}
        .hero .btn-secondary{color:#fffaf4;border-color:rgba(255,255,255,.42)}
        .hero .btn-secondary:hover{background:rgba(255,255,255,.1);color:#fff}
        .hero-board{background:rgba(251,248,242,.95);color:var(--ink);padding:28px;border-radius:18px;box-shadow:var(--shadow);transform:rotate(2deg)}
        .board-top{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:20px}
        .stamp{border:1px solid var(--brand);color:var(--brand);font-size:11px;padding:4px 8px;border-radius:4px}
        .board-title{font-size:28px;font-weight:800;line-height:1.25;margin-bottom:16px}
        .board-copy{color:var(--muted);font-size:14px}
        .board-list{list-style:none;margin-top:25px;display:grid;gap:13px}
        .board-list li{display:flex;gap:10px;align-items:center;font-size:13px}
        .board-list b{color:var(--brand);font-size:12px}
        .trust-bar{background:var(--green);color:#e9e5d9}
        .trust-inner{display:grid;grid-template-columns:repeat(4,1fr);padding:18px 0;gap:15px}
        .trust-item{border-right:1px solid rgba(255,255,255,.18);padding-left:18px;font-size:13px}
        .trust-item:first-child{padding-left:0}.trust-item:last-child{border:0}
        .section{padding:108px 0}
        .section-heading{max-width:650px;margin-bottom:48px}
        h2{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.04em;margin-top:12px}
        .section-intro{color:var(--muted);margin-top:17px;font-size:16px}
        .meaning{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;align-items:start}
        .keyword-stack{border-left:5px solid var(--brand);padding-left:28px}
        .keyword-stack strong{font-size:42px;line-height:1.25;display:block}
        .keyword-stack span{display:block;color:var(--brand);font-size:14px;margin-top:12px}
        .meaning-text{font-size:18px;line-height:2;color:#514b44}
        .meaning-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
        .tag{display:inline-flex;background:var(--brand-soft);color:var(--brand-deep);border-radius:30px;padding:5px 12px;font-size:12px}
        .scene-section{background:var(--sand)}
        .scene-list{display:grid;gap:18px}
        .scene{display:grid;grid-template-columns:90px 1fr 1.1fr auto;gap:28px;align-items:center;background:var(--white);border:1px solid var(--line);padding:26px 30px;border-radius:var(--radius);transition:.25s}
        .scene:hover{border-color:var(--brand);transform:translateX(5px);box-shadow:var(--shadow)}
        .scene-number{font-size:27px;color:var(--brand);font-weight:800}
        .scene h3{font-size:21px;margin-bottom:4px}.scene p{color:var(--muted);font-size:14px}
        .scene-meta{font-size:13px;color:var(--muted);border-left:1px solid var(--line);padding-left:25px}
        .arrow{color:var(--brand);font-size:22px}
        .feature{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}
        .feature-media{position:relative}
        .feature-media img{width:100%;height:390px;object-fit:cover;border-radius:18px}
        .image-note{position:absolute;bottom:18px;left:18px;background:var(--green);color:#fff;padding:9px 14px;border-radius:7px;font-size:12px}
        .check-list{list-style:none;margin-top:25px;display:grid;gap:17px}
        .check-list li{display:flex;gap:13px;color:#575148}
        .check-list b{color:var(--brand);font-size:18px}
        .process{background:#2f3530;color:#f8f1e8}
        .process .section-label{color:#e8a381}.process h2{color:#fffaf4}
        .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px}
        .process-step{padding:22px 28px;border-left:1px solid rgba(255,255,255,.25);position:relative}
        .process-step:first-child{border-left:0;padding-left:0}
        .process-step .num{color:#e8a381;font-size:13px;letter-spacing:.1em}
        .process-step h3{margin:14px 0 8px;font-size:19px}.process-step p{color:#c7c4ba;font-size:14px}
        .updates{display:grid;grid-template-columns:1.1fr .9fr;gap:55px;align-items:start}
        .lead-update{background:var(--green);color:#fff;padding:30px;border-radius:16px;min-height:245px}
        .lead-update .tag{background:rgba(255,255,255,.14);color:#f4c7b0}
        .lead-update h3{font-size:26px;line-height:1.35;margin:24px 0 16px}
        .lead-update p{color:#d5d8cc;font-size:14px}
        .update-list{display:grid;gap:0}
        .update-item{display:grid;grid-template-columns:1fr auto;gap:16px;padding:19px 0;border-bottom:1px solid var(--line)}
        .update-item h3{font-size:17px;line-height:1.45}
        .update-item p{font-size:13px;color:var(--muted);margin-top:4px}
        .update-meta{text-align:right;color:var(--muted);font-size:12px;white-space:nowrap}
        .update-meta a{display:block;color:var(--brand);margin-top:8px}
        .empty{padding:35px;border:1px dashed var(--line);color:var(--muted);border-radius:12px}
        .faq-section{background:var(--sand)}
        .faq{max-width:850px;margin:auto;border-top:1px solid var(--line)}
        .faq details{border-bottom:1px solid var(--line);padding:0 4px}
        .faq summary{list-style:none;padding:21px 8px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between}
        .faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"＋";color:var(--brand);font-size:20px}
        .faq details[open] summary{color:var(--brand)}.faq details[open] summary:after{content:"－"}
        .faq-answer{color:var(--muted);padding:0 38px 23px 8px;font-size:14px}
        .cta{padding:70px 0;background:var(--brand);color:#fffaf4}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta h2{font-size:36px}.cta p{color:#f7d9ca;margin-top:10px}
        .cta .btn-secondary{border-color:#f3c6b2;color:#fffaf4}
        .site-footer{background:#262b27;color:#d8d5cb;padding:55px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr 1fr;gap:45px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.16)}
        .footer-brand{color:#fff;font-size:20px;font-weight:800}.footer-brand span{color:#e8a381}
        .footer-text{font-size:13px;color:#aaa99f;margin-top:15px;max-width:290px}
        .footer-title{color:#fff;font-size:14px;margin-bottom:14px}.footer-links{list-style:none;display:grid;gap:8px;font-size:13px;color:#aaa99f}
        .footer-links a:hover{color:#e8a381}
        .footer-bottom{display:flex;justify-content:space-between;padding-top:18px;color:#92958d;font-size:12px}
        .mini-form{display:grid;gap:8px}.mini-form input{background:#343a35;border:1px solid #4b514b;border-radius:6px;padding:9px 11px;color:#fff}.mini-form button{padding:9px;background:#e8a381;border:0;border-radius:6px;color:#34261f;font-weight:700}
        @media(max-width:900px){
            .nav-links{gap:16px}.hero-inner{gap:35px}.scene{grid-template-columns:60px 1fr auto}.scene-meta{grid-column:2;padding-left:0;border:0}.feature{gap:35px}.footer-grid{grid-template-columns:1fr 1fr}
        }
        @media(max-width:700px){
            .container{width:min(100% - 32px,var(--container))}.nav-wrap{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:10px 20px 20px;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.nav-links.open{display:flex}.nav-links a{padding:13px 4px}.nav-links a.active:after{left:0;bottom:7px;transform:none}.header-action{display:none}
            .hero{min-height:auto}.hero-inner{grid-template-columns:1fr;padding:70px 0}.hero-board{transform:none}.hero-copy{font-size:16px}.trust-inner{grid-template-columns:1fr 1fr}.trust-item{padding:5px 12px;border-right:0}
            .section{padding:72px 0}.meaning,.feature,.updates{grid-template-columns:1fr;gap:35px}.keyword-stack strong{font-size:34px}.scene{grid-template-columns:48px 1fr auto;padding:20px}.scene h3{font-size:18px}.scene-meta{font-size:12px}.process-grid{grid-template-columns:1fr 1fr;gap:22px}.process-step{border-left:0;padding:0}.process-step:first-child{padding-left:0}.cta-inner{display:block}.cta .btn{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:480px){
            h1{font-size:42px}.hero-actions .btn{width:100%}.trust-inner{grid-template-columns:1fr}.trust-item{border-bottom:1px solid rgba(255,255,255,.16);padding:8px 0}.scene{grid-template-columns:40px 1fr}.arrow{grid-column:2}.process-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.update-item{display:block}.update-meta{text-align:left;margin-top:10px}
        }

/* roulang page: category1 */
:root{
            --brand:#b45432;
            --brand-deep:#833a29;
            --brand-soft:#f3dfd2;
            --ink:#292a26;
            --muted:#766f65;
            --paper:#fbf8f2;
            --sand:#f2ece2;
            --green:#314c43;
            --line:#ded5c9;
            --white:#fffdf9;
            --shadow:0 16px 40px rgba(71,48,34,.09);
            --shadow-soft:0 8px 24px rgba(71,48,34,.07);
            --radius:16px;
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7}
        h1,h2,h3,p{margin:0}
        h1,h2,h3{font-weight:800;letter-spacing:-.035em}
        h1{font-size:clamp(42px,6vw,76px);line-height:1.12}
        h2{font-size:clamp(30px,4vw,48px);line-height:1.2}
        h3{font-size:21px;line-height:1.4}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input,textarea,select{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(251,248,242,.97);border-bottom:1px solid var(--line)}
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
        .logo-mark{width:38px;height:38px;border:2px solid var(--brand);color:var(--brand);display:grid;place-items:center;border-radius:9px 9px 9px 2px;font-size:13px}
        .logo small{display:block;color:var(--muted);font-size:10px;font-weight:500;letter-spacing:.12em}
        .nav-links{display:flex;align-items:center;gap:30px}
        .nav-links a{font-size:14px;color:var(--muted);padding:27px 0;position:relative;transition:.25s}
        .nav-links a:hover,.nav-links a.active{color:var(--brand)}
        .nav-links a.active:after{content:"";height:3px;width:24px;background:var(--brand);position:absolute;bottom:17px;left:50%;transform:translateX(-50%);border-radius:3px}
        .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:9px;padding:12px 20px;font-weight:700;transition:.25s}
        .header-action,.btn-primary{background:var(--brand);color:#fffaf4}
        .header-action:hover,.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);color:#fffaf4}
        .btn-secondary{border:1px solid var(--line);color:var(--ink);background:transparent}
        .btn-secondary:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
        .btn:focus,.header-action:focus,input:focus,textarea:focus,summary:focus{outline:3px solid rgba(180,84,50,.25);outline-offset:3px}
        .menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 11px;color:var(--brand)}
        .page-hero{background:var(--green);color:#fffaf4;position:relative;overflow:hidden}
        .page-hero:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(239,190,157,.25);border-radius:50%;right:-100px;top:-170px}
        .page-hero-inner{min-height:430px;padding:82px 0 76px;display:grid;grid-template-columns:1.05fr .95fr;gap:74px;align-items:center;position:relative;z-index:1}
        .breadcrumb{font-size:13px;color:#d6d9cf;margin-bottom:27px}
        .breadcrumb a{color:#efb79e}
        .eyebrow,.section-label{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--brand);font-weight:800}
        .page-hero .eyebrow{color:#efb79e;margin-bottom:17px}
        .page-hero h1{max-width:650px}
        .hero-desc{color:#dce0d5;font-size:17px;max-width:590px;margin-top:23px}
        .hero-actions{display:flex;gap:13px;margin-top:30px;flex-wrap:wrap}
        .page-hero .btn-secondary{color:#fffaf4;border-color:rgba(255,255,255,.4)}
        .page-hero .btn-secondary:hover{background:rgba(255,255,255,.1);color:#fff}
        .hero-image{height:310px;border-radius:18px;overflow:hidden;box-shadow:var(--shadow);position:relative}
        .hero-image img{height:100%;width:100%;object-fit:cover}
        .image-caption{position:absolute;left:18px;bottom:18px;background:rgba(38,43,39,.88);padding:9px 13px;border-left:3px solid #e4a17e;font-size:12px}
        .section{padding:104px 0}
        .section-heading{max-width:710px;margin-bottom:48px}
        .section-heading .section-label{margin-bottom:15px}
        .section-intro{color:var(--muted);margin-top:17px;font-size:16px}
        .guide-intro{display:grid;grid-template-columns:.8fr 1.2fr;gap:78px;align-items:start}
        .guide-mark{font-size:clamp(42px,6vw,72px);line-height:1;color:var(--brand);font-weight:800}
        .guide-mark span{display:block;font-size:18px;color:var(--muted);letter-spacing:.08em;margin-top:18px}
        .guide-copy{font-size:17px;color:#575148}
        .meaning-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
        .tag{display:inline-flex;background:var(--brand-soft);color:var(--brand-deep);border-radius:30px;padding:5px 12px;font-size:12px}
        .feature-section{background:var(--sand)}
        .feature{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}
        .feature-media{position:relative}
        .feature-media img{width:100%;height:390px;object-fit:cover;border-radius:18px}
        .media-note{position:absolute;right:-18px;bottom:20px;background:var(--white);padding:16px 20px;border-radius:12px;box-shadow:var(--shadow-soft);font-size:13px;color:var(--brand-deep)}
        .feature-copy p{color:var(--muted);margin-top:18px}
        .check-list{list-style:none;padding:0;margin:27px 0 0;display:grid;gap:16px}
        .check-list li{display:flex;gap:13px;color:#575148}
        .check-list b{color:var(--brand);font-size:18px}
        .scenario-section{padding-top:92px}
        .scenario-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
        .scenario-card{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:28px;min-height:190px;transition:.25s}
        .scenario-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
        .scenario-card.featured{background:var(--brand);color:#fffaf4;min-height:265px;display:flex;flex-direction:column;justify-content:space-between}
        .scenario-card.featured p{color:#f7d9ca}
        .scenario-card p{font-size:14px;color:var(--muted);margin-top:12px}
        .scenario-no{font-size:12px;color:var(--brand);letter-spacing:.15em;font-weight:800}
        .featured .scenario-no{color:#f1b397}
        .scenario-card .text-link{display:inline-block;color:var(--brand);font-size:13px;font-weight:700;margin-top:20px}
        .featured .text-link{color:#fff}
        .standards{background:#f7f2ea}
        .standards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .standard{padding:28px 25px;border-top:3px solid var(--brand);background:var(--white);border-radius:0 0 14px 14px}
        .standard strong{display:block;font-size:30px;color:var(--brand);margin-bottom:10px}
        .standard p{font-size:14px;color:var(--muted)}
        .process{background:var(--green);color:#fffaf4}
        .process .section-label{color:#e8a381}
        .process-intro{color:#d5d8cc;max-width:610px;margin-top:17px}
        .process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:50px}
        .process-step{padding:0 26px;border-left:1px solid rgba(255,255,255,.25)}
        .process-step:first-child{padding-left:0;border-left:0}
        .process-num{font-size:31px;color:#e8a381;font-weight:800}
        .process-step h3{margin-top:13px}
        .process-step p{font-size:14px;color:#d5d8cc;margin-top:10px}
        .faq-section{background:var(--sand)}
        .faq{max-width:850px;margin:auto;border-top:1px solid var(--line)}
        .faq details{border-bottom:1px solid var(--line);padding:0 4px}
        .faq summary{list-style:none;padding:21px 8px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between}
        .faq summary::-webkit-details-marker{display:none}
        .faq summary:after{content:"＋";color:var(--brand);font-size:20px}
        .faq details[open] summary{color:var(--brand)}
        .faq details[open] summary:after{content:"－"}
        .faq-answer{color:var(--muted);padding:0 38px 23px 8px;font-size:14px}
        .cta{padding:70px 0;background:var(--brand);color:#fffaf4}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta h2{font-size:36px}
        .cta p{color:#f7d9ca;margin-top:10px}
        .cta .btn-secondary{border-color:#f3c6b2;color:#fffaf4}
        .site-footer{background:#262b27;color:#d8d5cb;padding:55px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr 1fr;gap:45px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.14)}
        .footer-brand{font-size:19px;font-weight:800;color:#fffaf4}
        .footer-brand span{color:#efb79e}
        .footer-text{font-size:13px;color:#aeb4ab;max-width:240px;margin-top:15px}
        .footer-title{font-size:13px;color:#efb79e;font-weight:700;margin-bottom:14px}
        .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:13px;color:#aeb4ab}
        .footer-links a{transition:.2s}
        .footer-links a:hover{color:#efb79e}
        .mini-form{display:grid;gap:8px}
        .mini-form input{width:100%;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;padding:9px 11px;border-radius:7px}
        .mini-form input::placeholder{color:#9da49c}
        .mini-form button{border:0;border-radius:7px;background:#d9825e;color:#fff;padding:10px;font-weight:700}
        .mini-form button:hover{background:#ef9a76}
        .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#8e978e;font-size:12px}
        @media (max-width:1024px){
            .page-hero-inner{gap:40px}
            .footer-grid{gap:24px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .nav-wrap{height:68px}
            .nav-links{display:none;position:absolute;left:17px;right:17px;top:75px;padding:12px 18px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}
            .nav-links.open{display:flex}
            .nav-links a{padding:12px 0}
            .nav-links a.active:after{left:0;bottom:5px;transform:none}
            .header-action{display:none}
            .menu-toggle{display:block}
            .page-hero-inner,.guide-intro,.feature,.scenario-grid{grid-template-columns:1fr}
            .page-hero-inner{padding:55px 0 58px}
            .hero-image{height:260px}
            .section{padding:75px 0}
            .guide-intro{gap:30px}
            .feature{gap:35px}
            .feature-media img{height:280px}
            .media-note{right:10px}
            .standards-grid{grid-template-columns:1fr}
            .process-grid{grid-template-columns:1fr;gap:28px}
            .process-step,.process-step:first-child{padding:0 0 0 22px;border-left:1px solid rgba(255,255,255,.3)}
            .cta-inner{align-items:flex-start;flex-direction:column}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/-1}
            .footer-bottom{flex-direction:column;gap:7px}
        }
        @media (max-width:520px){
            h1{font-size:42px}
            h2{font-size:31px}
            .hero-actions .btn{width:100%}
            .scenario-card.featured{min-height:220px}
            .footer-grid{grid-template-columns:1fr}
            .footer-grid>div{grid-column:auto!important}
        }

/* roulang page: article */
:root{
        --brand:#b45432;--brand-deep:#833a29;--brand-soft:#f3dfd2;
        --ink:#292a26;--muted:#766f65;--paper:#fbf8f2;--sand:#f2ece2;
        --green:#314c43;--line:#ded5c9;--white:#fffdf9;
        --shadow:0 16px 40px rgba(71,48,34,.09);--radius:16px;--container:1180px
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    h1,h2,h3,p{margin:0}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
    button,input,textarea,select{font:inherit}button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(251,248,242,.97);border-bottom:1px solid var(--line)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .logo-mark{width:38px;height:38px;border:2px solid var(--brand);color:var(--brand);display:grid;place-items:center;border-radius:9px 9px 9px 2px;font-size:13px}
    .logo small{display:block;color:var(--muted);font-size:10px;font-weight:500;letter-spacing:.12em}
    .nav-links{display:flex;align-items:center;gap:30px}
    .nav-links a{font-size:14px;color:var(--muted);padding:27px 0;position:relative;transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:var(--brand)}
    .nav-links a.active:after{content:"";height:3px;width:24px;background:var(--brand);position:absolute;bottom:17px;left:50%;transform:translateX(-50%);border-radius:3px}
    .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:9px;padding:12px 20px;font-weight:700;transition:.25s}
    .header-action,.btn-primary{background:var(--brand);color:#fffaf4}
    .header-action:hover,.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px)}
    .btn-secondary{border:1px solid var(--line);color:var(--ink);background:transparent}
    .btn-secondary:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
    .btn:focus,.header-action:focus,.nav-links a:focus,input:focus,textarea:focus{outline:3px solid rgba(180,84,50,.25);outline-offset:3px}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 11px;color:var(--brand)}
    .article-banner{background:linear-gradient(90deg,rgba(41,42,38,.94),rgba(49,76,67,.72)),url('/assets/images/backpic/back-2.png') center/cover;color:#fffaf4;padding:78px 0 82px}
    .crumbs{display:flex;align-items:center;gap:10px;color:#e4d8cd;font-size:13px;margin-bottom:30px;flex-wrap:wrap}
    .crumbs a:hover{color:#f0b49a}.crumbs span{opacity:.55}
    .article-head{max-width:900px}
    .eyebrow,.section-label{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--brand);font-weight:800}
    .article-banner .eyebrow{color:#efb79d}
    .article-head h1{font-size:clamp(34px,5vw,60px);line-height:1.2;letter-spacing:-.03em;margin:16px 0 20px;max-width:900px}
    .article-summary{font-size:18px;color:#f0e5db;max-width:780px}
    .article-meta{display:flex;gap:20px;flex-wrap:wrap;color:#d7c9bd;font-size:13px;margin-top:25px}
    .tag{display:inline-flex;background:var(--brand-soft);color:var(--brand-deep);border-radius:30px;padding:5px 12px;font-size:12px}
    .article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:70px;align-items:start;padding:78px 0 100px}
    .article-content{font-size:17px;line-height:1.95;color:#4e4b44}
    .article-content>*{max-width:100%}
    .article-content h2{font-size:30px;line-height:1.35;color:var(--ink);margin:46px 0 18px;padding-left:17px;border-left:4px solid var(--brand)}
    .article-content h3{font-size:22px;line-height:1.45;color:var(--ink);margin:32px 0 12px}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{padding-left:28px;margin:12px 0 25px}
    .article-content li{margin:8px 0}
    .article-content blockquote{margin:30px 0;padding:24px 28px;background:var(--sand);border-left:4px solid var(--brand);color:var(--green);font-size:18px}
    .article-content img{width:100%;height:auto;border-radius:14px;margin:28px 0}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:42px 0}
    .article-aside{position:sticky;top:108px}
    .aside-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:18px}
    .aside-card h3{font-size:18px;margin-bottom:15px}
    .aside-card p{font-size:14px;color:var(--muted);line-height:1.8}
    .aside-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
    .aside-list li{border-top:1px solid var(--line);padding-top:12px;font-size:14px;color:var(--muted)}
    .aside-list a:hover{color:var(--brand)}
    .article-footer{border-top:1px solid var(--line);padding-top:25px;margin-top:50px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    .article-footer a{color:var(--brand);font-size:14px}
    .article-footer a:hover{text-decoration:underline}
    .cta{padding:70px 0;background:var(--brand);color:#fffaf4}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:36px;line-height:1.3}.cta p{color:#f7d9ca;margin-top:10px}
    .cta .btn-secondary{border-color:#f3c6b2;color:#fffaf4}.cta .btn-secondary:hover{color:#fff;background:rgba(255,255,255,.12)}
    .empty-state{text-align:center;padding:70px 25px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
    .empty-state h2{font-size:30px;margin-bottom:12px}.empty-state p{color:var(--muted);margin-bottom:24px}
    .site-footer{background:#262b27;color:#d8d5cb;padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr 1fr;gap:45px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.13)}
    .footer-brand{font-size:18px;font-weight:800;color:#fffaf4}.footer-brand span{color:#e8a381}
    .footer-text{font-size:13px;color:#aeb3a9;margin-top:14px;max-width:250px}
    .footer-title{font-weight:700;color:#fffaf4;margin-bottom:15px}.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:13px;color:#aeb3a9}
    .footer-links a{transition:.2s}.footer-links a:hover{color:#e8a381}
    .mini-form{display:grid;gap:9px}.mini-form input{width:100%;background:#303631;border:1px solid #4b514b;color:#fff;padding:10px 12px;border-radius:7px}
    .mini-form input::placeholder{color:#9ea59c}.mini-form input:focus{border-color:#e8a381;outline:2px solid rgba(232,163,129,.2)}
    .mini-form button{border:0;border-radius:7px;background:#e8a381;color:#302b27;padding:10px;font-weight:700}
    .mini-form button:hover{background:#f4c2a9}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:19px;color:#91988e;font-size:12px}
    @media(max-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:35px}.footer-grid{gap:25px}}
    @media(max-width:768px){
        .container{width:min(var(--container),calc(100% - 34px))}
        .nav-wrap{height:68px}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:10px 17px 18px;flex-direction:column;align-items:stretch;gap:0}
        .nav-links.open{display:flex}.nav-links a{padding:12px 0}.nav-links a.active:after{left:0;bottom:6px;transform:none;width:18px}.menu-toggle{display:block}.header-action{display:none}
        .article-banner{padding:52px 0 58px}.article-head h1{font-size:36px}.article-summary{font-size:16px}
        .article-layout{display:block;padding:48px 0 65px}.article-aside{position:static;margin-top:45px}.article-content{font-size:16px}.article-content h2{font-size:26px}
        .cta-inner{display:block}.cta h2{font-size:30px;margin-bottom:24px}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
        .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}
    }
    @media(max-width:520px){
        .logo{font-size:14px}.logo small{font-size:8px}.logo-mark{width:33px;height:33px;font-size:11px}
        .article-head h1{font-size:30px}.article-meta{gap:10px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
        .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
    }