/* roulang page: index */
:root{
            --bg:#f4f1ea;
            --paper:#fbfaf6;
            --ink:#151515;
            --muted:#716e67;
            --line:#d9d4c9;
            --lime:#c7f36b;
            --lime-deep:#a8d94d;
            --purple:#655b78;
            --purple-soft:#e7e1ed;
            --dark:#1b1b1b;
            --warm:#ebe5da;
            --radius:18px;
            --shadow:0 18px 45px rgba(31,28,22,.08);
            --ease:260ms cubic-bezier(.2,.7,.2,1);
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{
            background:var(--bg);
            color:var(--ink);
            font-family:"思源黑体","HarmonyOS Sans","PingFang SC","Microsoft YaHei",sans-serif;
            line-height:1.7;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none}
        button,input,select,textarea{font:inherit}
        button{cursor:pointer;border:0}
        img{display:block;max-width:100%}
        :focus-visible{outline:3px solid var(--lime-deep);outline-offset:4px}
        .container{width:min(1240px,calc(100% - 48px));margin:auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(244,241,234,.94);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(10px);
        }
        .nav-wrap{min-height:82px;display:flex;align-items:center;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:900;letter-spacing:-.06em}
        .logo-mark{width:31px;height:31px;background:var(--lime);border:2px solid var(--ink);border-radius:9px;position:relative}
        .logo-mark:after{content:"";position:absolute;width:10px;height:10px;background:var(--ink);border-radius:50%;right:4px;bottom:4px}
        .logo-text{font-size:17px;line-height:1.1}
        .logo-text small{display:block;color:var(--purple);font-size:10px;letter-spacing:.12em;margin-top:4px}
        .nav-links{display:flex;align-items:center;gap:5px;flex:1}
        .nav-links a{font-size:14px;font-weight:700;padding:10px 14px;border-radius:10px;transition:background var(--ease),transform var(--ease)}
        .nav-links a:hover{background:var(--warm);transform:translateY(-2px)}
        .nav-links a.active{background:var(--lime)}
        .nav-action{display:flex;align-items:center;gap:12px}
        .status{font-size:11px;font-weight:800;color:var(--purple);white-space:nowrap}
        .status i{display:inline-block;width:7px;height:7px;background:var(--lime-deep);border-radius:50%;margin-right:5px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:10px;font-weight:800;font-size:14px;transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease)}
        .btn:hover{transform:translateY(-3px);box-shadow:0 9px 20px rgba(21,21,21,.12)}
        .btn-dark{background:var(--dark);color:var(--lime)}
        .btn-lime{background:var(--lime);color:var(--ink)}
        .btn-light{border:1px solid var(--ink);background:transparent;color:var(--ink)}
        .menu-btn{display:none;background:transparent;font-size:25px}
        main{overflow:hidden}
        .hero{padding:76px 0 88px;position:relative}
        .hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:70px;align-items:center}
        .eyebrow{display:flex;align-items:center;gap:10px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;margin-bottom:22px}
        .eyebrow:before{content:"";width:34px;height:3px;background:var(--lime-deep)}
        h1{font-size:clamp(42px,6vw,82px);line-height:1.04;letter-spacing:-.075em;max-width:730px}
        h1 em{font-style:normal;color:var(--purple)}
        .hero-copy{font-size:17px;color:var(--muted);max-width:610px;margin:28px 0 31px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-note{margin-top:25px;font-size:12px;color:var(--muted);display:flex;align-items:center;gap:8px}
        .hero-note b{color:var(--ink)}
        .hero-stage{min-height:440px;background:var(--dark);border-radius:24px;padding:24px;position:relative;color:#fff;box-shadow:var(--shadow)}
        .stage-top{display:flex;justify-content:space-between;align-items:center;color:#c9c5bb;font-size:12px}
        .stage-top strong{color:var(--lime);font-size:14px}
        .stage-main{margin-top:66px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
        .stage-block{border:1px solid #45433d;padding:17px;border-radius:14px;min-height:116px}
        .stage-block.big{grid-column:span 2;background:var(--lime);color:var(--ink);border-color:var(--lime);min-height:145px}
        .stage-block span{display:block;font-size:11px;color:inherit;opacity:.68;margin-bottom:17px}
        .stage-block strong{font-size:32px;line-height:1;font-weight:900;letter-spacing:-.06em}
        .stage-block.big strong{font-size:52px}
        .stage-line{position:absolute;left:24px;right:24px;bottom:24px;border-top:1px solid #45433d;padding-top:12px;display:flex;justify-content:space-between;color:#c9c5bb;font-size:11px}
        .section{padding:92px 0}
        .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:36px}
        .section-kicker{color:var(--purple);font-size:12px;font-weight:900;letter-spacing:.13em;margin-bottom:8px}
        h2{font-size:clamp(30px,4vw,49px);line-height:1.1;letter-spacing:-.06em}
        .section-head p{max-width:420px;color:var(--muted);font-size:15px}
        .metrics{display:grid;grid-template-columns:1.25fr repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .metric{padding:27px 24px;border-right:1px solid var(--line);min-height:145px}
        .metric:last-child{border-right:0}
        .metric.primary{background:var(--lime)}
        .metric strong{display:block;font-size:40px;line-height:1.1;letter-spacing:-.07em;font-family:ui-monospace,SFMono-Regular,monospace}
        .metric label{display:block;font-weight:800;margin-top:10px}
        .metric small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
        .matrix{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:14px}
        .matrix-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-height:245px;position:relative;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
        .matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--purple)}
        .matrix-card.featured{grid-row:span 2;background:var(--purple);color:#fff;min-height:504px}
        .matrix-card .num{font-family:ui-monospace,monospace;color:var(--purple);font-size:12px;font-weight:900}
        .featured .num{color:var(--lime)}
        .matrix-card h3{font-size:25px;letter-spacing:-.05em;margin:30px 0 10px}
        .matrix-card p{color:var(--muted);font-size:14px;max-width:300px}
        .featured p{color:#d8d2df}
        .matrix-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:22px}
        .tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:6px;background:var(--warm);font-size:11px;font-weight:800}
        .featured .tag{background:#7b708f;color:#fff}
        .matrix-card .card-link{position:absolute;left:26px;bottom:25px;font-size:13px;font-weight:900;border-bottom:2px solid var(--lime-deep);padding-bottom:2px}
        .comparison{background:var(--dark);border-radius:24px;color:#fff;padding:38px 42px}
        .comparison-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}
        .comparison h2{color:#fff}
        .comparison-head p{color:#bcb8af;max-width:390px;font-size:14px}
        .compare-table{width:100%;border-collapse:collapse}
        .compare-table th,.compare-table td{text-align:left;padding:17px 13px;border-bottom:1px solid #41403b;font-size:14px}
        .compare-table th{color:#aaa59a;font-size:12px;font-weight:600}
        .compare-table td:first-child{font-weight:800}
        .compare-table .mark{color:var(--lime);font-weight:900}
        .update-rail{display:grid;grid-template-columns:1fr 1fr;gap:16px}
        .update-card{padding:27px;background:var(--paper);border:1px solid var(--line);border-radius:16px;display:flex;gap:20px;align-items:flex-start}
        .update-date{font-family:ui-monospace,monospace;color:var(--purple);font-size:13px;font-weight:900;white-space:nowrap}
        .update-card h3{font-size:18px;margin-bottom:6px}
        .update-card p{font-size:13px;color:var(--muted)}
        .faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}
        .faq-intro p{color:var(--muted);margin-top:20px;max-width:330px}
        .faq-list{border-top:1px solid var(--line)}
        details{border-bottom:1px solid var(--line);padding:20px 0}
        summary{list-style:none;cursor:pointer;font-size:17px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";font-size:24px;font-weight:400;line-height:1}
        details[open] summary:after{content:"−";color:var(--purple)}
        details p{color:var(--muted);font-size:14px;max-width:650px;padding:12px 38px 2px 0}
        .form-panel{background:var(--dark);border-radius:24px;color:#fff;padding:42px;display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}
        .form-panel h2{color:#fff}
        .form-panel .lead{color:#c2beb4;font-size:14px;margin-top:16px;max-width:360px}
        .form-status{display:inline-flex;background:var(--lime);color:var(--ink);padding:5px 9px;border-radius:5px;font-size:11px;font-weight:900;margin-bottom:20px}
        form{display:grid;grid-template-columns:1fr 1fr;gap:15px}
        .field{display:flex;flex-direction:column;gap:6px}
        .field.full{grid-column:span 2}
        .field label{font-size:12px;color:#d5d0c5;font-weight:700}
        .field input,.field select,.field textarea{background:#292925;border:1px solid #4c4a43;border-radius:9px;color:#fff;padding:12px 13px;min-height:46px;transition:border var(--ease),background var(--ease)}
        .field textarea{min-height:90px;resize:vertical}
        .field input:focus,.field select:focus,.field textarea:focus{border-color:var(--lime);background:#33332d;outline:none}
        .form-bottom{grid-column:span 2;display:flex;align-items:center;gap:17px;flex-wrap:wrap;margin-top:4px}
        .form-hint{font-size:11px;color:#99958d}
        .form-message{grid-column:span 2;color:var(--lime);font-size:13px;display:none}
        footer{background:var(--dark);color:#fff;padding:54px 0 22px;border-top:1px solid #3b3934}
        .footer-top{display:flex;justify-content:space-between;gap:35px;padding-bottom:42px}
        .footer-brand{max-width:330px}
        .footer-brand .logo{color:#fff;margin-bottom:17px}
        .footer-brand p{color:#aaa69d;font-size:13px}
        .footer-nav{display:flex;gap:55px}
        .footer-nav div{display:flex;flex-direction:column;gap:9px}
        .footer-nav strong{color:var(--lime);font-size:12px;margin-bottom:5px}
        .footer-nav a{color:#c9c5bb;font-size:13px;transition:color var(--ease)}
        .footer-nav a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid #3b3934;padding-top:18px;color:#88847c;font-size:11px;display:flex;justify-content:space-between;gap:15px}
        .reveal{animation:rise .7s both}
        @keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
        @media(max-width:1023px){
            .container{width:min(100% - 36px,760px)}
            .logo{min-width:auto}.nav-links a{padding:9px 8px}
            .status{display:none}.hero-grid{grid-template-columns:1fr;gap:35px}
            .hero-stage{min-height:380px}.metrics{grid-template-columns:1fr 1fr}
            .metric:nth-child(2){border-right:0}.metric{border-bottom:1px solid var(--line)}
            .matrix{grid-template-columns:1fr 1fr}.matrix-card.featured{grid-row:span 2}
            .faq-layout,.form-panel{grid-template-columns:1fr;gap:35px}
        }
        @media(max-width:767px){
            .container{width:calc(100% - 32px)}
            .nav-wrap{min-height:68px;gap:12px}.logo-text{font-size:13px}.logo-text small{font-size:8px}
            .logo-mark{width:27px;height:27px}.nav-links{overflow-x:auto;white-space:nowrap;scrollbar-width:none}
            .nav-links::-webkit-scrollbar{display:none}.nav-links a{font-size:12px;padding:7px 9px}
            .nav-action .btn{min-height:40px;padding:0 12px;font-size:12px}.hero{padding:54px 0 62px}
            h1{font-size:clamp(36px,11vw,58px)}.hero-copy{font-size:15px}
            .hero-stage{min-height:350px;padding:18px}.stage-main{margin-top:45px}.stage-block.big strong{font-size:42px}
            .section{padding:65px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:14px}
            .metrics{grid-template-columns:1fr 1fr}.metric{padding:19px 15px;min-height:125px}.metric strong{font-size:30px}.metric label{font-size:13px}
            .matrix{grid-template-columns:1fr}.matrix-card.featured{grid-row:auto;min-height:330px}.matrix-card{min-height:210px}
            .comparison{padding:27px 18px;border-radius:18px;overflow:auto}.comparison-head{display:block}.comparison-head p{margin-top:12px}
            .compare-table{min-width:610px}.update-rail{grid-template-columns:1fr}.update-card{padding:20px;gap:12px}
            .form-panel{padding:27px 20px;border-radius:18px}.form-panel form{grid-template-columns:1fr}.field.full,.form-bottom,.form-message{grid-column:auto}
            .form-bottom .btn{width:100%}.footer-top{display:block}.footer-nav{margin-top:30px;gap:32px;flex-wrap:wrap}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
        }
        @media(max-width:520px){
            .nav-action{display:none}.nav-links{flex:1}.hero-actions .btn{width:100%}
            .stage-main{grid-template-columns:1fr}.stage-block.big{grid-column:auto}.stage-block{min-height:90px}
            .metrics{grid-template-columns:1fr}.metric{border-right:0}.metric:nth-child(2){border-right:0}
            .footer-nav{gap:22px}
        }
        @media(prefers-reduced-motion:reduce){
            *,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}
        }

/* roulang page: category2 */
:root{
--bg:#f4f1ea;--paper:#fbfaf6;--ink:#151515;--muted:#716e67;--line:#d9d4c9;
--lime:#c7f36b;--lime-deep:#a8d94d;--purple:#655b78;--purple-soft:#e7e1ed;
--dark:#1b1b1b;--warm:#ebe5da;--radius:18px;--shadow:0 18px 45px rgba(31,28,22,.08);
--ease:260ms cubic-bezier(.2,.7,.2,1)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"思源黑体","HarmonyOS Sans","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none} button,input,select,textarea{font:inherit} button{cursor:pointer;border:0} img{display:block;max-width:100%}
.container{width:min(1240px,calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(244,241,234,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav-wrap{min-height:82px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:900;letter-spacing:-.06em}
.logo-mark{width:31px;height:31px;background:var(--lime);border:2px solid var(--ink);border-radius:9px;position:relative;flex:none}
.logo-mark:after{content:"";position:absolute;width:10px;height:10px;background:var(--ink);border-radius:50%;right:4px;bottom:4px}
.logo-text{font-size:17px;line-height:1.1}.logo-text small{display:block;color:var(--purple);font-size:10px;letter-spacing:.12em;margin-top:4px}
.nav-links{display:flex;align-items:center;gap:5px;flex:1}.nav-links a{font-size:14px;font-weight:700;padding:10px 14px;border-radius:10px;transition:background var(--ease),transform var(--ease)}
.nav-links a:hover{background:var(--warm);transform:translateY(-2px)}.nav-links a.active{background:var(--lime)}
.nav-action{display:flex;align-items:center;gap:12px}.status{font-size:12px;color:var(--purple);white-space:nowrap}.status i{display:inline-block;width:7px;height:7px;background:var(--lime-deep);border-radius:50%;margin-right:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:10px;font-weight:800;font-size:14px;transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease)}
.btn:hover{transform:translateY(-3px);box-shadow:0 9px 20px rgba(21,21,21,.12)}.btn-dark{background:var(--dark);color:var(--lime)}.btn-lime{background:var(--lime);color:var(--ink)}.btn-light{border:1px solid var(--ink);background:transparent}
main{overflow:hidden}.channel-hero{padding:66px 0 54px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:58px;align-items:end}
.eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:.13em}
.eyebrow:before,.section-kicker:before{content:"";width:34px;height:3px;background:var(--lime-deep)}
h1,h2,h3,p{margin-top:0}h1{font-size:clamp(40px,6vw,76px);line-height:1.05;letter-spacing:-.075em;margin:20px 0 22px;max-width:850px}
.hero-copy{font-size:17px;color:var(--muted);max-width:650px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.channel-panel{background:var(--dark);color:#fff;border-radius:22px;padding:25px;position:relative;min-height:220px;box-shadow:var(--shadow)}
.panel-top,.panel-foot{display:flex;justify-content:space-between;align-items:center;color:#c9c5bb;font-size:12px}.panel-top strong{color:var(--lime);font-size:15px}
.panel-number{font-size:74px;line-height:1;font-weight:900;letter-spacing:-.1em;color:var(--lime);margin:37px 0 25px}
.panel-foot{border-top:1px solid #47443d;padding-top:14px}
.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,46px);line-height:1.1;letter-spacing:-.06em;margin:8px 0}
.section-head p{max-width:430px;color:var(--muted);font-size:14px;margin-bottom:4px}
.filter-bar{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:10px;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:12px;margin-bottom:25px}
.filter-bar label{font-size:11px;color:var(--muted);display:block;margin:0 0 4px 3px}.filter-bar select,.filter-bar input{width:100%;height:42px;background:var(--bg);border:1px solid var(--line);border-radius:9px;padding:0 12px;color:var(--ink);outline:none}.filter-bar select:focus,.filter-bar input:focus{border-color:var(--purple);box-shadow:0 0 0 3px var(--purple-soft)}
.content-layout{display:grid;grid-template-columns:1.45fr .75fr;gap:22px}.feature-item,.list-item,.side-index{background:var(--paper);border:1px solid var(--line);border-radius:18px}
.feature-item{padding:28px;min-height:310px;position:relative;overflow:hidden;background:var(--purple);color:#fff}.feature-item:after{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(199,243,107,.5);border-radius:50%;right:-45px;bottom:-65px}
.item-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:25px}.tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--warm);font-size:11px;font-weight:800;color:var(--ink)}.tag.green{background:var(--lime)}.tag.purple{background:var(--purple-soft);color:var(--purple)}
.feature-item .tag{background:#81768f;color:#fff}.feature-item .tag.green{background:var(--lime);color:var(--ink)}
.feature-item h3{font-size:31px;letter-spacing:-.06em;margin-bottom:10px}.feature-item p{color:#ddd7e4;max-width:560px;font-size:14px}
.feature-bottom{position:absolute;left:28px;right:28px;bottom:25px;display:flex;justify-content:space-between;border-top:1px solid #8b8197;padding-top:14px;font-size:12px;color:#ddd7e4}
.list-stack{display:grid;gap:10px}.list-item{padding:18px;display:flex;justify-content:space-between;gap:14px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}.list-item:hover{transform:translateX(4px);border-color:var(--purple);box-shadow:var(--shadow)}.list-item h3{font-size:17px;margin:0 0 5px}.list-item p{font-size:12px;color:var(--muted);margin:0}.list-item b{font-size:11px;color:var(--purple);white-space:nowrap}
.side-index{padding:23px;margin-top:22px}.side-index h3{font-size:18px;margin-bottom:16px}.side-index a{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:12px 0;font-size:13px;font-weight:800}.side-index a span{color:var(--muted);font-size:11px}
.compare{background:var(--dark);color:#fff;border-radius:24px;padding:35px}.compare .section-kicker{color:var(--lime)}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#4a4841;margin-top:28px}.compare-cell{background:var(--dark);padding:20px}.compare-cell strong{display:block;font-size:20px;color:var(--lime);margin-bottom:5px}.compare-cell span{font-size:12px;color:#c5c0b6}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:65px}.faq-intro p{color:var(--muted);max-width:330px;margin-top:18px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;list-style:none;font-weight:800;display:flex;justify-content:space-between;gap:20px}summary::-webkit-details-marker{display:none}summary:after{content:"＋";color:var(--purple);font-size:20px}details[open] summary:after{content:"－";color:var(--lime-deep)}details p{color:var(--muted);font-size:14px;padding:12px 30px 0 0;margin:0}
.cta{background:var(--lime);border-radius:23px;padding:42px;display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:clamp(27px,4vw,42px);letter-spacing:-.06em;margin:0 0 8px}.cta p{margin:0;color:#475130;font-size:14px}.cta .btn{background:var(--dark);color:var(--lime)}
footer{background:var(--dark);color:#fff;padding:52px 0 22px;margin-top:25px}.footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:38px}.footer-brand p{color:#bcb8ae;max-width:330px;font-size:13px;margin:18px 0 0}.footer-nav{display:flex;gap:70px}.footer-nav div{display:flex;flex-direction:column;gap:8px}.footer-nav strong{color:var(--lime);font-size:12px;margin-bottom:5px}.footer-nav a{font-size:13px;color:#d1cdc4;transition:color var(--ease)}.footer-nav a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #46433d;padding-top:17px;display:flex;justify-content:space-between;color:#9f9b91;font-size:11px}
@media(max-width:1023px){.nav-wrap{gap:14px}.logo{min-width:220px}.status{display:none}.hero-grid{grid-template-columns:1fr 1fr;gap:28px}.content-layout{grid-template-columns:1fr}.side-index{margin-top:0}.section{padding:70px 0}}
@media(max-width:767px){.container{width:min(100% - 32px,620px)}.nav-wrap{min-height:72px}.logo{min-width:0;flex:1}.logo-text{font-size:14px}.nav-links{order:3;width:100%;overflow-x:auto;flex:none;gap:2px}.nav-wrap{flex-wrap:wrap;padding:10px 0}.nav-links a{font-size:12px;padding:7px 10px;white-space:nowrap}.nav-action .btn{min-height:40px;padding:0 12px;font-size:12px}.channel-hero{padding:45px 0 40px}.hero-grid{grid-template-columns:1fr}.channel-panel{min-height:180px}.panel-number{font-size:58px;margin:25px 0}.filter-bar{grid-template-columns:1fr 1fr}.content-layout{display:block}.list-stack{margin-top:12px}.section{padding:58px 0}.section-head,.cta,.footer-top{display:block}.section-head p{margin-top:13px}.compare{padding:25px 18px}.compare-grid{grid-template-columns:1fr}.faq-layout{grid-template-columns:1fr;gap:30px}.cta .btn{margin-top:22px;width:100%}.footer-nav{margin-top:32px;gap:35px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
@media(max-width:520px){h1{font-size:39px}.filter-bar{grid-template-columns:1fr}.feature-item{padding:22px;min-height:330px}.feature-item h3{font-size:26px}.feature-bottom{left:22px;right:22px}.logo-mark{width:27px;height:27px}.logo-text small{font-size:9px}.nav-action .btn{font-size:11px;padding:0 9px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category1 */
:root{
 --bg:#f4f1ea;--paper:#fbfaf6;--ink:#151515;--muted:#716e67;
 --line:#d9d4c9;--lime:#c7f36b;--lime-deep:#a8d94d;
 --purple:#655b78;--purple-soft:#e7e1ed;--dark:#1b1b1b;
 --warm:#ebe5da;--radius:18px;--shadow:0 18px 45px rgba(31,28,22,.08);
 --ease:260ms cubic-bezier(.2,.7,.2,1)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"思源黑体","HarmonyOS Sans","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer;border:0}
img{display:block;max-width:100%}
.container{width:min(1240px,calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(244,241,234,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav-wrap{min-height:82px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:11px;min-width:245px;font-weight:900;letter-spacing:-.06em}
.logo-mark{width:31px;height:31px;background:var(--lime);border:2px solid var(--ink);border-radius:9px;position:relative;flex:none}
.logo-mark:after{content:"";position:absolute;width:10px;height:10px;background:var(--ink);border-radius:50%;right:4px;bottom:4px}
.logo-text{font-size:17px;line-height:1.1}
.logo-text small{display:block;color:var(--purple);font-size:10px;letter-spacing:.12em;margin-top:4px}
.nav-links{display:flex;align-items:center;gap:5px;flex:1}
.nav-links a{font-size:14px;font-weight:700;padding:10px 14px;border-radius:10px;transition:background var(--ease),transform var(--ease)}
.nav-links a:hover{background:var(--warm);transform:translateY(-2px)}
.nav-links a.active{background:var(--lime)}
.nav-action{display:flex;align-items:center;gap:12px}
.status{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:12px;white-space:nowrap}
.status i{width:8px;height:8px;background:var(--lime-deep);border:1px solid var(--ink);border-radius:50%;display:inline-block}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 20px;border-radius:10px;font-weight:800;font-size:14px;transition:transform var(--ease),background var(--ease),color var(--ease),box-shadow var(--ease)}
.btn:hover{transform:translateY(-3px);box-shadow:0 9px 20px rgba(21,21,21,.12)}
.btn-dark{background:var(--dark);color:var(--lime)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-light{border:1px solid var(--ink);background:transparent;color:var(--ink)}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--lime-deep);outline-offset:3px}
.hero{padding:72px 0 68px}
.breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:26px}
.breadcrumb strong{color:var(--ink)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:end}
.eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;color:var(--purple);font-size:12px;font-weight:900;letter-spacing:.13em;margin-bottom:18px}
.eyebrow:before,.section-kicker:before{content:"";width:34px;height:3px;background:var(--lime-deep)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(42px,6vw,78px);line-height:1.08;letter-spacing:-.075em;margin-bottom:25px}
h1 em{font-style:normal;background:var(--lime);padding:0 8px}
h2{font-size:clamp(30px,4vw,48px);line-height:1.15;letter-spacing:-.06em;margin-bottom:12px}
.hero-copy{font-size:17px;color:var(--muted);max-width:650px;margin-bottom:29px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-aside{background:var(--dark);color:#fff;border-radius:24px;padding:26px;min-height:270px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-aside:after{content:"";position:absolute;width:180px;height:180px;border:1px solid var(--lime);border-radius:50%;right:-70px;bottom:-80px;opacity:.7}
.aside-top{display:flex;justify-content:space-between;color:#c9c5bb;font-size:12px}
.aside-top b{color:var(--lime)}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:44px}
.stat{border:1px solid #45433d;border-radius:13px;padding:16px;min-height:92px}
.stat.large{grid-column:span 2;background:var(--lime);color:var(--ink);border-color:var(--lime)}
.stat small{display:block;font-size:11px;opacity:.7;margin-bottom:8px}
.stat strong{font-family:ui-monospace,monospace;font-size:31px;line-height:1}
.stat.large strong{font-size:43px}
.section{padding:84px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section-head p{max-width:430px;color:var(--muted);font-size:15px;margin-bottom:0}
.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px;background:var(--paper);border:1px solid var(--line);border-radius:14px;margin-bottom:24px}
.filter-label{font-size:12px;font-weight:900;color:var(--purple);margin-right:4px}
.filter{border:1px solid var(--line);background:var(--bg);border-radius:8px;padding:8px 13px;font-size:13px;color:var(--ink);transition:border var(--ease),background var(--ease)}
.filter:hover,.filter.active{background:var(--lime);border-color:var(--ink)}
.index-layout{display:grid;grid-template-columns:1.36fr .64fr;gap:22px}
.index-main{display:grid;grid-template-columns:1.12fr .88fr;gap:14px}
.index-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:25px;min-height:230px;position:relative;overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.index-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--purple)}
.index-card.primary{grid-row:span 2;background:var(--purple);color:#fff;min-height:474px}
.index-card .number{font-family:ui-monospace,monospace;color:var(--purple);font-size:12px;font-weight:900}
.index-card.primary .number{color:var(--lime)}
.index-card h3{font-size:27px;letter-spacing:-.06em;margin:29px 0 9px}
.index-card p{font-size:14px;color:var(--muted);max-width:330px}
.index-card.primary p{color:#ddd7e3}
.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}
.tag{display:inline-flex;padding:4px 9px;border-radius:6px;background:var(--warm);font-size:11px;font-weight:800}
.primary .tag{background:#7b708f;color:#fff}
.card-link{position:absolute;left:25px;bottom:23px;font-size:13px;font-weight:900;border-bottom:2px solid var(--lime-deep);padding-bottom:2px}
.side-index{background:var(--dark);color:#fff;border-radius:var(--radius);padding:25px}
.side-index h3{font-size:20px;margin-bottom:20px}
.side-index ul{padding:0;margin:0;list-style:none}
.side-index li{border-top:1px solid #45433d;padding:16px 0;display:flex;justify-content:space-between;gap:12px;font-size:13px}
.side-index li span{color:#c7c1b7}
.comparison{background:var(--dark);color:#fff;border-radius:24px;padding:34px}
.comparison-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:24px}
.comparison h2{color:#fff}
.comparison-head p{color:#c7c1b7;max-width:390px;font-size:14px;margin:0}
.compare-row{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:1px;border-top:1px solid #45433d}
.compare-row>div{padding:16px 13px;border-bottom:1px solid #45433d;font-size:13px}
.compare-row.head{color:var(--lime);font-weight:900}
.compare-row>div:not(:first-child){text-align:center}
.compare-row strong{font-size:16px;color:#fff}
.compare-row .mark{color:var(--lime)}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
.faq-intro p{color:var(--muted);max-width:330px;font-size:15px}
.faq-list{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line);padding:0}
summary{list-style:none;cursor:pointer;font-size:16px;font-weight:800;padding:19px 35px 19px 0;position:relative}
summary::-webkit-details-marker{display:none}
summary:after{content:"＋";position:absolute;right:2px;color:var(--purple);font-size:21px;transition:transform var(--ease)}
details[open] summary:after{content:"－";color:var(--ink)}
details[open] summary{color:var(--purple)}
.answer{color:var(--muted);font-size:14px;padding:0 30px 20px 0}
.cta-panel{background:var(--dark);color:#fff;border-radius:24px;padding:40px;display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}
.cta-panel h2{color:#fff}
.cta-panel .lead{color:#c8c3b9;font-size:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:span 2}
.field label{font-size:12px;color:#d5d0c7}
.field input,.field select,.field textarea{width:100%;border:1px solid #555148;background:#282723;color:#fff;border-radius:9px;padding:12px 13px;min-height:46px}
.field textarea{min-height:88px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#969188}
.form-bottom{display:flex;align-items:center;gap:15px;margin-top:16px;flex-wrap:wrap}
.form-hint{font-size:11px;color:#9e9a91}
footer{background:var(--dark);color:#fff;padding:52px 0 22px}
.footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:42px}
.footer-brand p{color:#c1bcb2;font-size:13px;max-width:330px;margin-top:18px}
.footer-nav{display:flex;gap:70px}
.footer-nav div{display:flex;flex-direction:column;gap:9px;min-width:125px}
.footer-nav strong{color:var(--lime);font-size:12px;margin-bottom:5px}
.footer-nav a{color:#c1bcb2;font-size:13px;transition:color var(--ease)}
.footer-nav a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid #45433d;padding-top:18px;color:#969188;font-size:11px;display:flex;justify-content:space-between;gap:20px}
.reveal{animation:rise .6s both}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@media(max-width:1023px){
 .nav-wrap{gap:15px}.logo{min-width:220px}.nav-action .status{display:none}
 .hero-grid,.index-layout{grid-template-columns:1fr 1fr;gap:28px}
 .index-main{grid-template-columns:1fr}
 .index-card.primary{grid-row:auto;min-height:300px}
 .index-card{min-height:215px}.faq-layout{gap:35px}
}
@media(max-width:767px){
 .container{width:min(100% - 32px,620px)}
 .nav-wrap{min-height:70px}.logo{min-width:0;flex:1}.logo-text{font-size:14px}.logo-text small{font-size:8px}
 .nav-links{overflow-x:auto;flex:none;max-width:46%;scrollbar-width:none}.nav-links::-webkit-scrollbar{display:none}
 .nav-links a{font-size:12px;padding:8px 10px;white-space:nowrap}
 .nav-action .btn{padding:0 12px;min-height:43px;font-size:12px}
 .hero{padding:48px 0 50px}.hero-grid{grid-template-columns:1fr;gap:32px}
 h1{font-size:clamp(36px,12vw,54px)}
 .hero-copy{font-size:15px}.hero-aside{min-height:250px}
 .section{padding:58px 0}.section-head,.comparison-head{display:block}
 .section-head p,.comparison-head p{margin-top:13px}
 .filter-bar{overflow-x:auto;flex-wrap:nowrap;white-space:nowrap}
 .index-layout{grid-template-columns:1fr}.index-main{grid-template-columns:1fr}
 .index-card.primary{min-height:300px}.index-card{min-height:220px}
 .comparison{padding:24px 17px;overflow-x:auto}.compare-row{min-width:570px}
 .faq-layout{grid-template-columns:1fr;gap:25px}
 .cta-panel{grid-template-columns:1fr;gap:25px;padding:27px 21px}
 .form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}
 .footer-top{display:block}.footer-nav{margin-top:30px;gap:28px;flex-wrap:wrap}
 .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
}
@media(max-width:520px){
 .nav-links{max-width:39%}.nav-links a:nth-child(1){display:none}
 .nav-action .btn{font-size:0}.nav-action .btn span{font-size:19px}
 .hero-actions .btn{width:100%}.stat strong{font-size:25px}.stat.large strong{font-size:36px}
 .stage-main{margin-top:35px}.hero-aside{padding:20px}
}
@media(prefers-reduced-motion:reduce){
 *,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}
}