/* roulang page: index */
:root{
            --ink:#171918;
            --paper:#f4f1e9;
            --paper-deep:#e9e6dc;
            --lime:#c7f04a;
            --orange:#f05a3c;
            --muted:#7a7c76;
            --line:#d6d3c9;
            --white:#fffdf7;
            --shadow:0 14px 30px rgba(23,25,24,.09);
            --radius:12px;
            --max:1220px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"Noto Sans SC","PingFang 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{font:inherit}
        button{border:0;cursor:pointer}
        :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:var(--ink);color:var(--paper);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(244,241,233,.12)}
        .nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:30px;height:30px;background:var(--lime);color:var(--ink);display:grid;place-items:center;border-radius:7px;font-size:17px}
        .brand-text{font-size:18px}.brand-text em{font-style:normal;color:var(--lime);font-weight:500}
        .main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
        .main-nav a{font-size:14px;color:#c8c9c1;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:hover,.main-nav a.active{color:var(--paper)}
        .main-nav a.active:after{content:"";position:absolute;bottom:15px;left:0;width:22px;height:3px;background:var(--lime)}
        .header-actions{display:flex;align-items:center;gap:12px}
        .status{font-size:12px;color:#aeb0a7;white-space:nowrap}.status i{display:inline-block;width:7px;height:7px;background:var(--lime);border-radius:50%;margin-right:6px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:7px;font-weight:800;font-size:14px;transition:.2s ease;border:1px solid transparent}
        .btn:hover{transform:translateY(-2px)}.btn-lime{background:var(--lime);color:var(--ink)}.btn-lime:hover{background:#d7fb63}
        .btn-dark{background:var(--ink);color:var(--paper)}.btn-dark:hover{background:#30332f}
        .btn-outline{border-color:rgba(244,241,233,.3);color:var(--paper)}.btn-outline:hover{border-color:var(--lime);color:var(--lime)}
        .menu-toggle{display:none;background:none;color:var(--paper);font-size:25px}
        main{overflow:hidden}
        .hero{background:var(--ink);color:var(--paper);padding:86px 0 92px;position:relative}
        .hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(244,241,233,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(244,241,233,.04) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 75%)}
        .hero-grid{position:relative;display:grid;grid-template-columns:1.03fr .97fr;gap:70px;align-items:center}
        .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.15em;font-weight:800;color:var(--orange);margin-bottom:16px}
        .hero h1{font-size:clamp(42px,6vw,78px);line-height:1.08;letter-spacing:-.065em;max-width:720px}
        .hero h1 span{color:var(--lime)}
        .hero-copy{max-width:610px;color:#bfc1b8;font-size:17px;margin:25px 0 31px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-note{margin-top:24px;font-size:12px;color:#858880}
        .arena{min-height:360px;border:1px solid rgba(244,241,233,.23);position:relative;padding:28px;background:#202321;display:flex;align-items:flex-end}
        .arena:before{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(199,240,74,.55);border-radius:50%;left:18%;top:13%;box-shadow:0 0 0 26px rgba(199,240,74,.06),0 0 0 52px rgba(199,240,74,.04)}
        .arena:after{content:"";position:absolute;left:0;right:0;top:52%;height:1px;background:rgba(244,241,233,.25);transform:rotate(-16deg)}
        .scoreboard{position:relative;z-index:1;background:var(--lime);color:var(--ink);padding:18px 20px;width:82%;margin-left:auto}
        .scoreboard small{font-weight:900;letter-spacing:.12em}.score-row{display:flex;justify-content:space-between;align-items:end;margin-top:5px}.score-row strong{font-size:42px;line-height:1;font-family:Impact,Arial Narrow,sans-serif;letter-spacing:.03em}.score-row span{font-size:13px;font-weight:800}
        .section{padding:88px 0}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:31px}.section-head h2{font-size:clamp(28px,4vw,45px);line-height:1.15;letter-spacing:-.05em}.section-head p{max-width:440px;color:var(--muted);font-size:14px}
        .section-kicker{margin-bottom:10px}
        .focus-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.feature-card{background:var(--orange);padding:32px;min-height:300px;display:flex;flex-direction:column;justify-content:space-between}.feature-card h3{font-size:32px;line-height:1.25;max-width:600px}.feature-card p{max-width:600px}.meta{font-size:12px;color:var(--muted);display:flex;gap:14px;align-items:center}.feature-card .meta{color:#572117}.mini-stack{display:grid;gap:18px}.mini-card{background:var(--white);border:1px solid var(--line);padding:23px;display:flex;flex-direction:column;justify-content:space-between}.mini-card h3{font-size:20px;line-height:1.35;margin:15px 0}.tag{display:inline-flex;width:max-content;padding:3px 9px;font-size:11px;font-weight:900;letter-spacing:.04em;background:var(--lime);border-radius:4px}.tag.orange{background:var(--orange);color:var(--white)}.arrow{font-weight:900;font-size:21px}
        .calendar{background:var(--white);border-top:4px solid var(--ink);display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
        .calendar-item{padding:25px 22px;border-right:1px solid var(--line);min-height:170px}.calendar-item:last-child{border-right:0}.date{font-family:Impact,Arial Narrow,sans-serif;font-size:28px;letter-spacing:.03em}.calendar-item h3{font-size:17px;margin:10px 0 4px}.state{font-size:12px;color:var(--orange);font-weight:800}
        .channel{background:var(--lime);padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:25px}.channel h2{font-size:30px;letter-spacing:-.04em}.channel p{font-size:14px;max-width:550px}
        .observations{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.obs-main{background:var(--ink);color:var(--paper);padding:34px;min-height:285px}.obs-main h3{font-size:32px;max-width:410px;margin:35px 0 15px}.obs-list{display:grid;gap:18px}.obs-item{background:var(--white);border:1px solid var(--line);padding:22px;display:grid;grid-template-columns:95px 1fr;gap:15px}.obs-item strong{font-size:23px;color:var(--orange)}
        .rank-board{background:#252925;color:var(--paper);padding:28px}.rank-row{display:grid;grid-template-columns:45px 1fr 100px;align-items:center;gap:15px;border-bottom:1px solid rgba(244,241,233,.15);padding:16px 0}.rank-row:last-child{border:0}.rank-no{font-size:26px;color:var(--lime);font-family:Impact,Arial Narrow,sans-serif}.bar{height:7px;background:#444941;margin-top:7px}.bar i{display:block;height:100%;background:var(--orange)}.trend{font-size:12px;color:#bfc1b8;text-align:right}
        .dashboard{background:var(--ink);color:var(--paper);padding:34px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px}.metric{padding:12px 24px;border-left:1px solid rgba(244,241,233,.2)}.metric:first-child{border-left:0}.metric b{display:block;font-size:44px;color:var(--lime);line-height:1;font-family:Impact,Arial Narrow,sans-serif}.metric span{font-size:13px;color:#b5b8ae}
        .notice{display:grid;grid-template-columns:170px 1fr 130px;align-items:center;gap:25px;background:var(--white);border:1px solid var(--line);padding:24px 28px}.notice-date{font-weight:900;color:var(--orange)}.notice h3{font-size:20px}.notice p{font-size:14px;color:var(--muted)}
        .app-section{background:var(--paper-deep)}.app-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:center}.device-area{display:flex;justify-content:center;position:relative}.device{width:205px;height:380px;border:9px solid var(--ink);border-radius:25px;background:#30352d;padding:34px 14px 14px;box-shadow:18px 18px 0 var(--lime);transform:rotate(-5deg)}.device:before{content:"STARSKY";display:block;color:var(--lime);font-weight:900;font-size:12px;margin-bottom:25px}.screen-line{height:55px;background:var(--orange);margin-bottom:11px}.screen-line:nth-child(3){height:78px;background:#d2d4cb}.screen-line:nth-child(4){background:var(--lime)}.app-copy h2{font-size:42px;line-height:1.15;letter-spacing:-.05em}.app-copy p{color:var(--muted);margin:17px 0 24px}.app-points{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:25px 0}.app-point{background:var(--white);border:1px solid var(--line);padding:16px;font-size:14px}.app-point b{display:block;font-size:20px;margin-bottom:4px}
        .guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.guide{border-top:3px solid var(--ink);padding:20px 4px}.guide-no{font-size:34px;color:var(--orange);font-family:Impact,Arial Narrow,sans-serif}.guide h3{font-size:18px;margin:12px 0 7px}.guide p{font-size:13px;color:var(--muted)}
        .archive{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.archive-card{background:var(--white);border:1px solid var(--line);padding:25px;min-height:190px}.archive-card h3{font-size:21px;margin:24px 0 18px}.archive-card p{font-size:13px;color:var(--muted)}
        .latest{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.latest-grid{display:grid;grid-template-columns:.9fr 1.1fr}.latest-lead{padding:35px;border-right:1px solid var(--line);background:var(--ink);color:var(--paper)}.latest-lead h3{font-size:29px;line-height:1.3;margin:30px 0 15px}.latest-list{padding:12px 28px}.latest-item{display:grid;grid-template-columns:1fr 115px;gap:20px;padding:21px 0;border-bottom:1px solid var(--line)}.latest-item:last-child{border:0}.latest-item h3{font-size:17px;line-height:1.4}.latest-item p{font-size:13px;color:var(--muted);margin-top:4px}.latest-item .meta{justify-content:end;align-items:start}
        .editorial{display:grid;grid-template-columns:1fr 1fr;gap:18px}.edit-card{padding:30px;background:var(--orange);min-height:230px}.edit-card.dark{background:var(--ink);color:var(--paper)}.edit-card h3{font-size:27px;line-height:1.3;margin:30px 0 12px}.edit-card p{font-size:14px;max-width:500px}
        .faq{max-width:850px;border-top:2px solid var(--ink)}details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;list-style:none;font-weight:800;display:flex;justify-content:space-between;font-size:17px}summary:after{content:"+";color:var(--orange);font-size:24px;line-height:1}details[open] summary:after{content:"−"}details p{color:var(--muted);font-size:14px;padding:13px 32px 0 0}
        .closing{background:var(--ink);color:var(--paper);padding:56px 0}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.closing h2{font-size:39px;line-height:1.2}.closing p{color:#b9bcb3;margin-top:8px}
        .site-footer{background:#101210;color:#b6b9b0;padding:50px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px;padding-bottom:40px}.footer-brand{color:var(--paper);font-size:21px;font-weight:900}.footer-brand span{color:var(--lime)}.footer-col h3{font-size:13px;color:var(--paper);margin-bottom:14px}.footer-col a{display:block;font-size:13px;margin:8px 0}.footer-col a:hover{color:var(--lime)}.footer-note{font-size:12px;color:#777b72;max-width:270px;margin-top:14px}.copyright{border-top:1px solid rgba(244,241,233,.12);padding-top:20px;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        @media(max-width:1024px){.main-nav{gap:14px}.main-nav a{font-size:13px}.hero-grid{gap:35px}.app-grid{gap:35px}}
        @media(max-width:768px){.container{width:min(100% - 32px,var(--max))}.nav-wrap{height:66px}.status{display:none}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:66px;left:0;right:0;background:var(--ink);padding:12px 20px 20px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid #353833}.main-nav.open{display:flex}.main-nav a{padding:13px 0}.main-nav a.active:after{bottom:8px}.hero{padding:60px 0}.hero-grid,.focus-layout,.observations,.app-grid,.latest-grid{grid-template-columns:1fr}.arena{min-height:280px}.section{padding:62px 0}.calendar{grid-template-columns:repeat(2,1fr)}.calendar-item:nth-child(2){border-right:0}.calendar-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.channel,.closing-inner{align-items:flex-start;flex-direction:column}.dashboard{grid-template-columns:repeat(2,1fr);gap:20px}.metric{border-left:0;padding:10px 0}.notice{grid-template-columns:1fr;gap:8px}.guide-grid{grid-template-columns:repeat(2,1fr)}.archive{grid-template-columns:1fr 1fr}.latest-lead{border-right:0}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
        @media(max-width:520px){.brand-text{font-size:16px}.header-actions .btn{padding:0 12px;font-size:12px}.hero h1{font-size:43px}.hero-copy{font-size:15px}.scoreboard{width:100%}.section-head{display:block}.section-head p{margin-top:13px}.feature-card{min-height:270px;padding:25px}.feature-card h3{font-size:27px}.calendar,.archive,.guide-grid,.app-points{grid-template-columns:1fr}.calendar-item{border-right:0;border-bottom:1px solid var(--line)}.calendar-item:last-child{border-bottom:0}.dashboard{padding:25px 20px}.metric b{font-size:37px}.app-copy h2{font-size:34px}.latest-list{padding:10px 20px}.latest-item{grid-template-columns:1fr}.latest-item .meta{justify-content:start}.editorial{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:7px}}

/* roulang page: article */
:root{
            --ink:#171918;
            --paper:#f4f1e9;
            --paper-deep:#e9e6dc;
            --lime:#c7f04a;
            --orange:#f05a3c;
            --muted:#7a7c76;
            --line:#d6d3c9;
            --white:#fffdf7;
            --shadow:0 14px 30px rgba(23,25,24,.09);
            --radius:12px;
            --max:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:4px}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:var(--ink);color:var(--paper);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(244,241,233,.12)}
        .nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:30px;height:30px;background:var(--lime);color:var(--ink);display:grid;place-items:center;border-radius:7px;font-size:17px}
        .brand-text{font-size:18px}
        .brand-text em{font-style:normal;color:var(--lime);font-weight:500}
        .main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
        .main-nav a{font-size:14px;color:#c8c9c1;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:hover,.main-nav a.active{color:var(--paper)}
        .main-nav a.active:after{content:"";position:absolute;bottom:15px;left:0;width:22px;height:3px;background:var(--lime)}
        .header-actions{display:flex;align-items:center;gap:12px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:7px;font-weight:800;font-size:14px;transition:.2s ease;border:1px solid transparent}
        .btn:hover{transform:translateY(-2px)}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d7fb63}
        .btn-dark{background:var(--ink);color:var(--paper)}
        .btn-dark:hover{background:#30332f}
        .btn-outline{border-color:rgba(244,241,233,.3);color:var(--paper)}
        .btn-outline:hover{border-color:var(--lime);color:var(--lime)}
        .menu-toggle{display:none;background:none;color:var(--paper);font-size:25px}
        main{overflow:hidden}
        .article-head{background:var(--ink);color:var(--paper);padding:68px 0 74px;position:relative}
        .article-head:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(244,241,233,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(244,241,233,.045) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 78%)}
        .article-head-inner{position:relative;max-width:920px}
        .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.15em;font-weight:800;color:var(--orange);margin-bottom:16px}
        .crumbs{display:flex;flex-wrap:wrap;gap:8px;color:#9da097;font-size:13px;margin-bottom:32px}
        .crumbs a:hover{color:var(--lime)}
        .article-head h1{font-size:clamp(34px,5vw,64px);line-height:1.15;letter-spacing:-.06em;max-width:900px;margin:0}
        .article-intro{max-width:760px;color:#c5c7be;font-size:17px;margin:24px 0 0}
        .article-meta{display:flex;flex-wrap:wrap;gap:12px 25px;margin-top:30px;color:#aeb0a8;font-size:13px;border-top:1px solid rgba(244,241,233,.18);padding-top:18px}
        .tag{display:inline-flex;width:max-content;padding:3px 9px;font-size:11px;font-weight:900;letter-spacing:.04em;background:var(--lime);color:var(--ink);border-radius:4px}
        .tag.orange{background:var(--orange);color:var(--white)}
        .article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:70px;align-items:start;padding:70px 0 90px}
        .article-content{min-width:0}
        .article-content h2{font-size:30px;line-height:1.3;margin:42px 0 16px;letter-spacing:-.035em}
        .article-content h3{font-size:22px;line-height:1.4;margin:30px 0 12px}
        .article-content p{font-size:16px;line-height:2;margin:0 0 22px}
        .article-content ul,.article-content ol{padding-left:1.5em;margin:18px 0 26px}
        .article-content li{padding:4px 0;line-height:1.9}
        .article-content blockquote{margin:30px 0;padding:22px 26px;background:var(--paper-deep);border-left:5px solid var(--orange);font-size:18px;font-weight:700}
        .article-content table{width:100%;border-collapse:collapse;margin:28px 0;background:var(--white)}
        .article-content th,.article-content td{padding:13px 15px;border:1px solid var(--line);text-align:left}
        .article-content th{background:var(--ink);color:var(--paper)}
        .article-content img{margin:28px 0;border-radius:8px}
        .article-content figcaption{font-size:12px;color:var(--muted);margin-top:-18px;margin-bottom:24px}
        .article-content a{color:#596d18;text-decoration:underline;text-decoration-color:var(--lime);text-underline-offset:3px}
        .article-aside{position:sticky;top:106px}
        .aside-card{background:var(--white);border:1px solid var(--line);padding:24px;border-radius:var(--radius);margin-bottom:18px}
        .aside-card.dark{background:var(--ink);color:var(--paper);border-color:var(--ink)}
        .aside-card h2{font-size:19px;line-height:1.35;margin:0 0 17px}
        .aside-card p{font-size:13px;color:var(--muted);margin:0 0 19px}
        .dark p{color:#bfc1b8}
        .aside-line{display:flex;justify-content:space-between;gap:15px;padding:11px 0;border-bottom:1px solid var(--line);font-size:13px}
        .aside-line:last-child{border-bottom:0}
        .aside-line span{color:var(--muted)}
        .article-divider{height:1px;background:var(--line);margin:45px 0 28px}
        .article-bottom{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
        .back-link{font-weight:800;font-size:14px}
        .back-link:hover{color:var(--orange)}
        .notice-strip{background:var(--paper-deep);border:1px solid var(--line);border-left:4px solid var(--lime);padding:20px 22px;margin:0 0 28px;border-radius:6px}
        .notice-strip strong{display:block;margin-bottom:4px}
        .notice-strip span{font-size:14px;color:var(--muted)}
        .article-end{background:var(--ink);color:var(--paper);padding:44px 0}
        .article-end-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
        .article-end h2{font-size:28px;margin:0 0 6px}
        .article-end p{color:#bfc1b8;margin:0;font-size:14px}
        .site-footer{background:#101211;color:var(--paper);padding:55px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:43px}
        .footer-brand{font-size:21px;font-weight:900;letter-spacing:-.04em}
        .footer-brand span{color:var(--lime);font-weight:500}
        .footer-note{font-size:13px;color:#92958d;margin-top:12px}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h3{font-size:13px;color:var(--orange);margin:0 0 8px}
        .footer-col a{font-size:13px;color:#bfc1b8;transition:.2s}
        .footer-col a:hover{color:var(--lime);transform:translateX(2px)}
        .copyright{border-top:1px solid rgba(244,241,233,.14);padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#777b73;font-size:12px}
        @media(max-width:1024px){
            .nav-wrap{gap:20px}
            .main-nav{gap:15px}
            .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:35px}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 34px))}
            .nav-wrap{height:68px}
            .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:9px 20px 20px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid rgba(244,241,233,.12)}
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 0;border-bottom:1px solid rgba(244,241,233,.1)}
            .main-nav a.active:after{bottom:0;top:17px;left:auto;right:0}
            .header-actions .btn-outline{display:none}
            .menu-toggle{display:block}
            .article-head{padding:47px 0 55px}
            .article-layout{display:block;padding:48px 0 65px}
            .article-aside{position:static;margin-top:45px}
            .article-content h2{font-size:26px}
            .article-end-inner{align-items:flex-start;flex-direction:column}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
        }
        @media(max-width:520px){
            .brand-text{font-size:16px}
            .header-actions{margin-left:auto}
            .header-actions .btn-lime{padding:0 13px;font-size:12px}
            .article-head h1{font-size:35px}
            .article-intro{font-size:15px}
            .article-meta{gap:8px 15px}
            .article-content p{font-size:15px}
            .article-content table{display:block;overflow-x:auto;white-space:nowrap}
            .footer-grid{grid-template-columns:1fr;gap:24px}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:6px}
        }

/* roulang page: category2 */
:root{
            --ink:#171918;
            --paper:#f4f1e9;
            --paper-deep:#e9e6dc;
            --lime:#c7f04a;
            --orange:#f05a3c;
            --muted:#7a7c76;
            --line:#d6d3c9;
            --white:#fffdf7;
            --shadow:0 14px 30px rgba(23,25,24,.09);
            --radius:12px;
            --max:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:4px}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:var(--ink);color:var(--paper);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(244,241,233,.12)}
        .nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:30px;height:30px;background:var(--lime);color:var(--ink);display:grid;place-items:center;border-radius:7px;font-size:17px}
        .brand-text{font-size:18px}
        .brand-text em{font-style:normal;color:var(--lime);font-weight:500}
        .main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
        .main-nav a{font-size:14px;color:#c8c9c1;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:hover,.main-nav a.active{color:var(--paper)}
        .main-nav a.active:after{content:"";position:absolute;bottom:15px;left:0;width:22px;height:3px;background:var(--lime)}
        .header-actions{display:flex;align-items:center;gap:12px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:7px;font-weight:800;font-size:14px;transition:.2s ease;border:1px solid transparent}
        .btn:hover{transform:translateY(-2px)}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d7fb63}
        .btn-dark{background:var(--ink);color:var(--paper)}
        .btn-dark:hover{background:#30332f}
        .btn-outline{border-color:rgba(244,241,233,.3);color:var(--paper)}
        .btn-outline:hover{border-color:var(--lime);color:var(--lime)}
        .menu-toggle{display:none;background:none;color:var(--paper);font-size:25px}
        main{overflow:hidden}
        .page-intro{padding:76px 0 60px;background:var(--paper);border-bottom:1px solid var(--line)}
        .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end}
        .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.15em;font-weight:800;color:var(--orange);margin:0 0 15px}
        h1,h2,h3,p{margin-top:0}
        .page-intro h1{font-size:clamp(40px,6vw,72px);line-height:1.08;letter-spacing:-.065em;margin-bottom:22px}
        .page-intro h1 span{color:var(--orange)}
        .intro-copy{max-width:650px;color:var(--muted);font-size:17px;margin-bottom:0}
        .index-panel{border-left:4px solid var(--lime);padding:10px 0 10px 24px}
        .index-panel strong{display:block;font-size:25px;line-height:1.3;margin-bottom:7px}
        .index-panel p{color:var(--muted);font-size:13px;margin-bottom:0}
        .section{padding:78px 0}
        .section-deep{background:var(--paper-deep)}
        .section-dark{background:var(--ink);color:var(--paper)}
        .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
        .section-head h2{font-size:clamp(29px,4vw,46px);line-height:1.15;letter-spacing:-.05em;margin-bottom:0}
        .section-head p{max-width:440px;color:var(--muted);font-size:14px;margin-bottom:0}
        .section-dark .section-head p{color:#aeb1a8}
        .tag{display:inline-flex;width:max-content;padding:3px 9px;font-size:11px;font-weight:900;letter-spacing:.04em;background:var(--lime);border-radius:4px}
        .tag.orange{background:var(--orange);color:var(--white)}
        .meta{font-size:12px;color:var(--muted);display:flex;gap:14px;align-items:center;flex-wrap:wrap}
        .feature-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
        .feature-card{background:var(--orange);padding:34px;min-height:330px;display:flex;flex-direction:column;justify-content:space-between}
        .feature-card h3{font-size:34px;line-height:1.25;max-width:650px;margin:25px 0 15px}
        .feature-card p{max-width:620px;color:#572117}
        .feature-card .meta{color:#572117}
        .side-stack{display:grid;gap:18px}
        .mini-card{background:var(--white);border:1px solid var(--line);padding:24px;display:flex;flex-direction:column;justify-content:space-between;min-height:156px;transition:.2s ease}
        .mini-card:hover,.project-card:hover,.content-row:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
        .mini-card h3{font-size:19px;line-height:1.35;margin:14px 0 10px}
        .arrow{font-weight:900;font-size:20px}
        .project-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:16px}
        .project-card{background:var(--white);border:1px solid var(--line);padding:27px;min-height:245px;transition:.2s ease;position:relative}
        .project-card:nth-child(2){background:var(--ink);color:var(--paper)}
        .project-card:nth-child(2) .project-note{color:#b9bbb3}
        .project-number{font-family:Impact,Arial Narrow,sans-serif;font-size:48px;line-height:1;color:var(--orange)}
        .project-card h3{font-size:25px;margin:23px 0 10px}
        .project-note{color:var(--muted);font-size:14px;margin-bottom:22px}
        .trend-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
        .comparison{background:var(--white);border:1px solid var(--line)}
        .compare-row{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:15px;padding:17px 22px;border-bottom:1px solid var(--line);align-items:center;font-size:14px}
        .compare-row:last-child{border-bottom:0}
        .compare-row.head{background:var(--ink);color:var(--paper);font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
        .compare-row strong{font-size:17px}
        .signal-list{background:var(--orange);padding:28px}
        .signal-list h3{font-size:26px;margin-bottom:22px}
        .signal-item{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-bottom:1px solid rgba(23,25,24,.2);font-size:14px}
        .signal-item:last-child{border-bottom:0}
        .signal-item b{font-family:Impact,Arial Narrow,sans-serif;font-size:24px}
        .timeline{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(244,241,233,.2)}
        .time-item{padding:25px 20px 10px;border-right:1px solid rgba(244,241,233,.2);min-height:150px}
        .time-item:last-child{border-right:0}
        .time-item time{color:var(--lime);font-family:Impact,Arial Narrow,sans-serif;font-size:25px}
        .time-item h3{font-size:18px;margin:12px 0 5px}
        .time-item p{color:#aeb1a8;font-size:13px;margin-bottom:0}
        .filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
        .filter-chip{border:1px solid var(--line);background:var(--white);padding:8px 15px;border-radius:5px;font-size:13px;color:var(--muted)}
        .filter-chip.current{background:var(--lime);border-color:var(--lime);color:var(--ink);font-weight:800}
        .content-list{display:grid;gap:12px}
        .content-row{display:grid;grid-template-columns:90px 1fr 115px 90px;gap:20px;align-items:center;background:var(--white);border:1px solid var(--line);padding:20px 22px;transition:.2s ease}
        .content-row .serial{font-family:Impact,Arial Narrow,sans-serif;font-size:29px;color:var(--orange)}
        .content-row h3{font-size:19px;margin:0 0 5px;line-height:1.4}
        .content-row p{font-size:13px;color:var(--muted);margin:0}
        .content-row time{font-size:12px;color:var(--muted)}
        .read-link{font-size:13px;font-weight:900;text-align:right}
        .read-link:hover{color:var(--orange)}
        .empty-state{padding:35px;background:var(--white);border:1px dashed var(--line);color:var(--muted);text-align:center}
        .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px}
        .faq-grid h2{font-size:38px;line-height:1.15;letter-spacing:-.05em}
        .faq-list{border-top:1px solid var(--line)}
        details{border-bottom:1px solid var(--line);padding:18px 0}
        summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between;gap:20px}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"＋";color:var(--orange);font-size:22px;line-height:1}
        details[open] summary:after{content:"－"}
        details p{color:var(--muted);font-size:14px;margin:13px 30px 0 0}
        .cta-band{background:var(--ink);color:var(--paper);padding:42px 0}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta-inner h2{font-size:clamp(25px,4vw,39px);margin-bottom:7px}
        .cta-inner p{color:#b8bab2;margin-bottom:0}
        .site-footer{background:var(--ink);color:var(--paper);border-top:1px solid rgba(244,241,233,.12);padding:56px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
        .footer-brand{font-weight:900;font-size:21px;letter-spacing:-.04em}
        .footer-brand span{color:var(--lime);font-weight:500}
        .footer-note{color:#aeb1a8;font-size:13px;margin:12px 0 0}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h3{font-size:13px;color:var(--lime);margin-bottom:8px}
        .footer-col a{font-size:13px;color:#b8bab2;transition:.2s}
        .footer-col a:hover{color:var(--lime)}
        .copyright{border-top:1px solid rgba(244,241,233,.15);padding-top:20px;color:#858880;font-size:12px;display:flex;justify-content:space-between;gap:20px}
        @media(max-width:1024px){
            .nav-wrap{gap:18px}.main-nav{gap:15px}.header-actions .btn{padding:0 14px}
            .intro-grid,.feature-layout,.faq-grid{gap:35px}.project-grid{grid-template-columns:1fr 1fr}
            .project-card:last-child{grid-column:span 2}.content-row{grid-template-columns:65px 1fr 100px}
            .content-row .read-link{grid-column:3}.timeline{grid-template-columns:1fr 1fr}
            .time-item:nth-child(2){border-right:0}.time-item{border-bottom:1px solid rgba(244,241,233,.2)}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{height:68px}.brand-text{font-size:16px}.header-actions{margin-left:auto}
            .header-actions .btn{min-height:38px;padding:0 12px;font-size:12px}.menu-toggle{display:block}
            .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:12px 20px 18px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid rgba(244,241,233,.12)}
            .main-nav.open{display:flex}.main-nav a{padding:12px 0}.main-nav a.active:after{bottom:7px}
            .page-intro{padding:55px 0 45px}.intro-grid{grid-template-columns:1fr;gap:30px}.page-intro h1{font-size:48px}
            .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:14px}
            .feature-layout,.trend-grid,.faq-grid{grid-template-columns:1fr}.feature-card{min-height:280px}
            .project-grid{grid-template-columns:1fr}.project-card:last-child{grid-column:auto}
            .content-row{grid-template-columns:55px 1fr;gap:10px 15px}.content-row time{grid-column:2}.content-row .read-link{grid-column:2;text-align:left}
            .footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}
            .cta-inner{display:block}.cta-inner .btn{margin-top:22px}
        }
        @media(max-width:520px){
            .brand-mark{width:27px;height:27px;font-size:15px}.brand-text{font-size:14px}
            .header-actions .btn{display:none}.page-intro h1{font-size:39px}
            .feature-card{padding:25px}.feature-card h3{font-size:27px}
            .project-card{min-height:220px}.compare-row{grid-template-columns:1fr 1fr;font-size:13px}
            .compare-row.head{display:none}.compare-row strong{font-size:16px}.timeline{grid-template-columns:1fr}
            .time-item{border-right:0}.footer-grid{grid-template-columns:1fr;gap:28px}
        }

/* roulang page: category3 */
:root{
            --ink:#171918;
            --paper:#f4f1e9;
            --paper-deep:#e9e6dc;
            --lime:#c7f04a;
            --orange:#f05a3c;
            --muted:#7a7c76;
            --line:#d6d3c9;
            --white:#fffdf7;
            --shadow:0 14px 30px rgba(23,25,24,.09);
            --radius:12px;
            --max:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.7}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:4px}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:var(--ink);color:var(--paper);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(244,241,233,.12)}
        .nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:30px;height:30px;background:var(--lime);color:var(--ink);display:grid;place-items:center;border-radius:7px;font-size:17px}
        .brand-text{font-size:18px}
        .brand-text em{font-style:normal;color:var(--lime);font-weight:500}
        .main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
        .main-nav a{font-size:14px;color:#c8c9c1;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:hover,.main-nav a.active{color:var(--paper)}
        .main-nav a.active:after{content:"";position:absolute;bottom:15px;left:0;width:22px;height:3px;background:var(--lime)}
        .header-actions{display:flex;align-items:center;gap:12px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:7px;font-weight:800;font-size:14px;transition:.2s ease;border:1px solid transparent}
        .btn:hover{transform:translateY(-2px)}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d7fb63}
        .btn-dark{background:var(--ink);color:var(--paper)}
        .btn-dark:hover{background:#30332f}
        .btn-outline{border-color:rgba(244,241,233,.3);color:var(--paper)}
        .btn-outline:hover{border-color:var(--lime);color:var(--lime)}
        .menu-toggle{display:none;background:none;color:var(--paper);font-size:25px}
        main{overflow:hidden}
        .page-intro{background:var(--ink);color:var(--paper);padding:62px 0 66px;position:relative}
        .page-intro:after{content:"APP / 03";position:absolute;right:6%;bottom:28px;font:900 clamp(46px,8vw,112px)/1 Arial Narrow,Arial,sans-serif;color:rgba(244,241,233,.055);letter-spacing:-.08em}
        .crumbs{font-size:12px;color:#aeb1a8;margin-bottom:34px}
        .crumbs a:hover{color:var(--lime)}
        .intro-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:70px;align-items:end;position:relative;z-index:1}
        .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.15em;font-weight:800;color:var(--orange);margin-bottom:14px}
        .page-intro h1{font-size:clamp(40px,6vw,72px);line-height:1.08;letter-spacing:-.065em;margin:0;max-width:760px}
        .page-intro h1 span{color:var(--lime)}
        .intro-copy{color:#c4c6bd;max-width:620px;margin:22px 0 0;font-size:16px}
        .index-box{border-left:1px solid rgba(244,241,233,.25);padding-left:25px;color:#bfc1b8}
        .index-box strong{display:block;color:var(--lime);font:900 48px/1 Arial Narrow,Arial,sans-serif}
        .index-box small{display:block;margin-top:9px}
        .section{padding:82px 0}
        .section.alt{background:var(--paper-deep)}
        .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
        .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.15;letter-spacing:-.05em;margin:0}
        .section-head p{max-width:450px;color:var(--muted);font-size:14px;margin:0}
        .guide-feature{display:grid;grid-template-columns:1.05fr .95fr;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow)}
        .guide-copy{padding:39px}
        .guide-copy h2{font-size:32px;line-height:1.25;margin:18px 0 14px}
        .guide-copy p{color:var(--muted);max-width:570px}
        .guide-board{background:var(--ink);color:var(--paper);min-height:300px;padding:30px;display:flex;flex-direction:column;justify-content:space-between}
        .board-top{display:flex;justify-content:space-between;color:#aeb1a8;font-size:12px}
        .board-screen{border:1px solid rgba(244,241,233,.25);padding:23px;margin:25px 0 0;position:relative}
        .board-screen:before{content:"";display:block;width:68%;height:7px;background:var(--lime);margin-bottom:18px}
        .board-screen i{display:block;height:8px;background:#555953;margin:10px 0;width:84%}
        .board-screen i:nth-child(3){width:58%;background:var(--orange)}
        .board-screen i:nth-child(4){width:73%}
        .badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:4px;background:var(--lime);color:var(--ink);font-size:11px;font-weight:900}
        .badge.orange{background:var(--orange);color:var(--white)}
        .feature-list{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:18px}
        .feature-item{background:var(--white);border:1px solid var(--line);padding:23px;min-height:178px;transition:.2s ease}
        .feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9b5a9}
        .feature-item b{display:block;font:900 32px/1 Arial Narrow,Arial,sans-serif;color:var(--orange);margin-bottom:22px}
        .feature-item h3{font-size:18px;margin:0 0 8px}
        .feature-item p{font-size:13px;color:var(--muted);margin:0}
        .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .step{padding:29px 28px;border-right:1px solid var(--line);min-height:190px}
        .step:last-child{border-right:0}
        .step-number{color:var(--orange);font:900 38px/1 Arial Narrow,Arial,sans-serif}
        .step h3{font-size:20px;margin:18px 0 7px}
        .step p{font-size:13px;color:var(--muted);margin:0}
        .filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:25px}
        .filter{padding:8px 15px;border:1px solid var(--line);background:var(--white);font-size:13px;border-radius:5px}
        .filter.current{background:var(--ink);color:var(--lime);border-color:var(--ink)}
        .content-list{border-top:2px solid var(--ink)}
        .content-item{display:grid;grid-template-columns:100px 1fr 110px;gap:25px;align-items:center;padding:23px 0;border-bottom:1px solid var(--line)}
        .content-item:hover h3{color:var(--orange)}
        .content-item time{font:800 18px/1 Arial Narrow,Arial,sans-serif}
        .content-item h3{font-size:20px;margin:7px 0 5px;transition:.2s}
        .content-item p{font-size:13px;color:var(--muted);margin:0;max-width:690px}
        .read-link{font-size:13px;font-weight:900;text-align:right}
        .read-link:after{content:" →";color:var(--orange)}
        .empty-state{padding:35px 0;color:var(--muted);border-bottom:1px solid var(--line)}
        .app-table{background:var(--ink);color:var(--paper);padding:30px}
        .app-row{display:grid;grid-template-columns:1fr 1.4fr 120px;gap:22px;padding:18px 0;border-bottom:1px solid rgba(244,241,233,.17);align-items:center}
        .app-row:last-child{border-bottom:0}
        .app-row strong{color:var(--lime)}
        .app-row span{color:#bfc1b8;font-size:14px}
        .faq{border-top:1px solid var(--line)}
        .faq details{border-bottom:1px solid var(--line);padding:20px 0}
        .faq summary{cursor:pointer;list-style:none;font-size:17px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        .faq summary::-webkit-details-marker{display:none}
        .faq summary:after{content:"+";font-size:25px;font-weight:400;color:var(--orange)}
        .faq details[open] summary:after{content:"−"}
        .faq details p{max-width:760px;color:var(--muted);font-size:14px;margin:13px 0 2px}
        .cta{background:var(--ink);color:var(--paper);padding:43px 48px;display:flex;justify-content:space-between;gap:25px;align-items:center}
        .cta h2{font-size:32px;margin:0 0 7px}
        .cta p{color:#bfc1b8;margin:0;font-size:14px}
        .site-footer{background:var(--ink);color:var(--paper);padding:58px 0 25px;border-top:1px solid rgba(244,241,233,.15)}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
        .footer-brand{font-size:21px;font-weight:900}
        .footer-brand span{color:var(--lime);font-weight:500}
        .footer-note{color:#969a91;font-size:13px;margin-top:10px}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h3{font-size:14px;color:var(--lime);margin:0 0 8px}
        .footer-col a{font-size:13px;color:#bfc1b8}
        .footer-col a:hover{color:var(--paper)}
        .copyright{display:flex;justify-content:space-between;gap:20px;margin-top:43px;padding-top:18px;border-top:1px solid rgba(244,241,233,.15);font-size:12px;color:#858980}
        @media(max-width:1024px){
            .nav-wrap{gap:20px}.main-nav{gap:16px}.header-actions .btn{padding:0 14px}
            .intro-grid,.guide-feature{grid-template-columns:1fr;gap:30px}
            .index-box{border-left:0;border-top:1px solid rgba(244,241,233,.25);padding:20px 0 0}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{height:68px}.brand-text{font-size:16px}
            .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:8px 16px 20px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid rgba(244,241,233,.12)}
            .main-nav.open{display:flex}.main-nav a{padding:13px 0}.main-nav a.active:after{bottom:7px}
            .menu-toggle{display:block}.header-actions{margin-left:auto}.header-actions .btn{min-height:38px;font-size:12px;padding:0 12px}
            .page-intro{padding:45px 0 52px}.page-intro:after{font-size:58px;bottom:16px}
            .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:14px}
            .feature-list{grid-template-columns:repeat(2,1fr)}
            .steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}
            .content-item{grid-template-columns:70px 1fr;gap:14px}.read-link{grid-column:2;text-align:left}
            .app-row{grid-template-columns:1fr;gap:5px}
            .cta{display:block;padding:34px 26px}.cta .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .feature-list{grid-template-columns:1fr}.guide-copy{padding:27px}.guide-copy h2{font-size:26px}
            .guide-board{min-height:260px;padding:23px}.content-item h3{font-size:17px}
            .footer-grid{grid-template-columns:1fr}.brand-mark{width:27px;height:27px}
        }

/* roulang page: category1 */
:root{
            --ink:#171918;--paper:#f4f1e9;--paper-deep:#e9e6dc;--lime:#c7f04a;
            --orange:#f05a3c;--muted:#7a7c76;--line:#d6d3c9;--white:#fffdf7;
            --shadow:0 14px 30px rgba(23,25,24,.09);--radius:12px;--max:1220px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{border:0;cursor:pointer}
        .container{width:min(var(--max),calc(100% - 48px));margin:auto}
        .site-header{background:var(--ink);color:var(--paper);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(244,241,233,.12)}
        .nav-wrap{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:30px;height:30px;background:var(--lime);color:var(--ink);display:grid;place-items:center;border-radius:7px;font-size:17px}
        .brand-text{font-size:18px}
        .brand-text em{font-style:normal;color:var(--lime);font-weight:500}
        .main-nav{display:flex;align-items:center;gap:24px;margin-left:auto}
        .main-nav a{font-size:14px;color:#c8c9c1;position:relative;padding:25px 0;white-space:nowrap}
        .main-nav a:hover,.main-nav a.active{color:var(--paper)}
        .main-nav a.active:after{content:"";position:absolute;bottom:15px;left:0;width:22px;height:3px;background:var(--lime)}
        .header-actions{display:flex;align-items:center;gap:12px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:7px;font-weight:800;font-size:14px;transition:.2s ease;border:1px solid transparent}
        .btn:hover{transform:translateY(-2px)}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-lime:hover{background:#d7fb63}
        .btn-dark{background:var(--ink);color:var(--paper)}
        .btn-dark:hover{background:#30332f}
        .btn-outline{border-color:rgba(244,241,233,.3);color:var(--paper)}
        .btn-outline:hover{border-color:var(--lime);color:var(--lime)}
        .menu-toggle{display:none;background:none;color:var(--paper);font-size:25px}
        main{overflow:hidden}
        .page-head{background:var(--ink);color:var(--paper);padding:72px 0 78px;position:relative}
        .page-head:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(244,241,233,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(244,241,233,.045) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 82%)}
        .page-head-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end}
        .eyebrow,.section-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.15em;font-weight:800;color:var(--orange);margin-bottom:14px}
        .page-head h1{font-size:clamp(40px,6vw,72px);line-height:1.08;letter-spacing:-.065em;margin:0;max-width:760px}
        .page-head h1 span{color:var(--lime)}
        .page-head p{color:#c1c3ba;max-width:510px;margin:0;font-size:16px}
        .crumbs{position:relative;display:flex;gap:10px;align-items:center;color:#9b9e95;font-size:13px;margin-bottom:22px}
        .crumbs a:hover{color:var(--lime)}
        .head-index{border-left:1px solid rgba(244,241,233,.25);padding-left:28px}
        .head-index strong{display:block;font:58px/1 Impact,"Arial Narrow",sans-serif;color:var(--lime)}
        .head-index small{color:#bfc1b8}
        .section{padding:82px 0}
        .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
        .section-head h2{font-size:clamp(28px,4vw,45px);line-height:1.15;letter-spacing:-.05em;margin:0}
        .section-head p{max-width:450px;color:var(--muted);font-size:14px;margin:0}
        .intro-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px}
        .intro-card{background:var(--white);border:1px solid var(--line);padding:30px}
        .intro-card.dark{background:var(--ink);color:var(--paper)}
        .intro-card h3{font-size:26px;line-height:1.3;margin:18px 0 12px}
        .intro-card p{color:var(--muted);margin:0}
        .intro-card.dark p{color:#bfc1b8}
        .tag{display:inline-flex;width:max-content;padding:3px 9px;font-size:11px;font-weight:900;letter-spacing:.04em;background:var(--lime);border-radius:4px}
        .tag.orange{background:var(--orange);color:var(--white)}
        .feature{background:var(--orange);padding:36px;display:grid;grid-template-columns:1fr 230px;gap:30px;align-items:end}
        .feature h3{font-size:32px;line-height:1.25;margin:24px 0 13px;max-width:680px}
        .feature p{max-width:670px;margin:0;color:#542218}
        .feature-number{text-align:right;font:96px/.8 Impact,"Arial Narrow",sans-serif;color:rgba(23,25,24,.2)}
        .meta{font-size:12px;color:var(--muted);display:flex;gap:14px;align-items:center}
        .feature .meta{color:#572117}
        .content-list{border-top:2px solid var(--ink)}
        .content-item{display:grid;grid-template-columns:80px 1fr 150px 110px;gap:22px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line);transition:.2s ease}
        .content-item:hover{padding-left:10px;background:rgba(255,253,247,.55)}
        .content-item .number{font:34px/1 Impact,"Arial Narrow",sans-serif;color:var(--orange)}
        .content-item h3{font-size:20px;line-height:1.35;margin:0 0 5px}
        .content-item p{font-size:13px;color:var(--muted);margin:0}
        .read-link{font-size:13px;font-weight:900;text-align:right}
        .read-link:hover{color:var(--orange)}
        .index-box{background:var(--paper-deep);padding:34px}
        .index-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:25px}
        .index-chip{background:var(--white);border:1px solid var(--line);padding:18px 16px;min-height:94px}
        .index-chip strong{display:block;font-size:17px;margin-bottom:4px}
        .index-chip span{font-size:12px;color:var(--muted)}
        .timeline{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .timeline-item{padding:24px 20px;min-height:165px;border-right:1px solid var(--line)}
        .timeline-item:last-child{border-right:0}
        .timeline-item b{font-size:14px;color:var(--orange)}
        .timeline-item h3{font-size:18px;margin:14px 0 7px;line-height:1.35}
        .timeline-item p{font-size:13px;color:var(--muted);margin:0}
        .faq-list{border-top:2px solid var(--ink)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;background:transparent;padding:21px 0;display:flex;justify-content:space-between;text-align:left;font-weight:800;color:var(--ink)}
        .faq-question span:last-child{font-size:24px;color:var(--orange);line-height:1}
        .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 45px 20px 0;max-width:720px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta{background:var(--ink);color:var(--paper);padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px}
        .cta h2{font-size:31px;margin:0 0 7px}
        .cta p{color:#bfc1b8;margin:0}
        .site-footer{background:var(--ink);color:var(--paper);padding:58px 0 24px;border-top:1px solid rgba(244,241,233,.1)}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
        .footer-brand{font-size:22px;font-weight:900}
        .footer-brand span{color:var(--lime);font-weight:500}
        .footer-note{color:#999c93;font-size:13px;margin-top:10px}
        .footer-col{display:grid;align-content:start;gap:8px}
        .footer-col h3{font-size:14px;color:var(--lime);margin:0 0 8px}
        .footer-col a{font-size:13px;color:#bfc1b8}
        .footer-col a:hover{color:var(--lime)}
        .copyright{border-top:1px solid rgba(244,241,233,.15);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#858880;font-size:12px}
        :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        @media(max-width:1024px){
            .main-nav{gap:15px}.nav-wrap{gap:20px}.page-head-inner{gap:35px}
            .content-item{grid-template-columns:55px 1fr 120px}
            .content-item .read-link{grid-column:2}
            .index-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:768px){
            .container{width:min(var(--max),calc(100% - 32px))}
            .nav-wrap{height:68px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:8px 16px 18px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid rgba(244,241,233,.12)}
            .main-nav.open{display:flex}.main-nav a{padding:12px 0}.main-nav a.active:after{bottom:7px}
            .header-actions{margin-left:auto}.header-actions .btn{min-height:38px;padding:0 13px}.menu-toggle{display:block}
            .page-head{padding:52px 0 58px}.page-head-inner{display:block}.head-index{margin-top:35px}
            .section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:12px}
            .intro-grid,.feature{grid-template-columns:1fr}.feature-number{text-align:left;font-size:70px}
            .content-item{grid-template-columns:45px 1fr;gap:12px;padding:20px 0}
            .content-item .meta{grid-column:2}.content-item .read-link{grid-column:2;text-align:left}
            .timeline{display:block}.timeline-item{border-right:0;border-bottom:1px solid var(--line);min-height:auto}.timeline-item:last-child{border-bottom:0}
            .cta{display:block;padding:30px 24px}.cta .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .brand-text{font-size:15px}.header-actions .btn{font-size:12px}
            .page-head h1{font-size:43px}.index-grid{grid-template-columns:1fr}
            .feature{padding:25px}.intro-card{padding:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}
        }