/* roulang page: index */
:root{
      --ink:#242226;
      --muted:#756e74;
      --paper:#fbf8f4;
      --panel:#fffdfa;
      --dark:#292329;
      --dark-soft:#393039;
      --plum:#713f5f;
      --plum-deep:#572e49;
      --coral:#d97762;
      --peach:#f1c1a7;
      --sage:#a8b6a0;
      --line:#e9ded8;
      --success:#5d806d;
      --warning:#b77a45;
      --radius:18px;
      --radius-lg:28px;
      --shadow:0 16px 40px rgba(71,47,54,.09);
      --ease:all .28s ease;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{max-width:1180px;margin:0 auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(251,248,244,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,222,216,.85)}
    .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:5px 5px 0 var(--peach)}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-links a{padding:10px 14px;border-radius:10px;color:var(--muted);font-size:14px}
    .nav-links a:hover,.nav-links a.active{background:#f0e6e1;color:var(--plum-deep)}
    .nav-action{border:1px solid var(--plum)!important;color:var(--plum-deep)!important}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--plum);font-size:25px;padding:8px}
    .hero{padding:46px 0 58px}
    .crumb{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:28px}
    .crumb strong{color:var(--plum)}
    .hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:50px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--plum);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    h1,h2,h3{margin:0;color:var(--ink);line-height:1.2;letter-spacing:-.045em}
    h1{font-size:clamp(38px,5vw,68px);max-width:700px;margin:18px 0 22px}
    h2{font-size:clamp(28px,3.2vw,42px)}
    h3{font-size:20px}
    .hero-copy{max-width:650px;color:var(--muted);font-size:18px;line-height:1.9}
    .hero-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:12px;border:1px solid transparent;font-weight:700;font-size:14px;transition:var(--ease)}
    .button.primary{background:var(--plum);color:#fff}
    .button.primary:hover{background:var(--plum-deep);transform:translateY(-2px);box-shadow:0 9px 18px rgba(113,63,95,.2)}
    .button.secondary{background:transparent;border-color:var(--line);color:var(--plum-deep)}
    .button.secondary:hover{border-color:var(--plum);background:#f4ebe7}
    .button:focus,input:focus,textarea:focus,summary:focus{outline:3px solid rgba(217,119,98,.3);outline-offset:3px}
    .hero-points{display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;color:var(--muted);font-size:13px}
    .hero-points b{display:block;color:var(--ink);font-size:23px;line-height:1.1}
    .visual-board{position:relative;min-height:430px;border-radius:var(--radius-lg);background:var(--dark);padding:20px;overflow:hidden;box-shadow:var(--shadow)}
    .visual-board:before{content:"";position:absolute;width:250px;height:250px;border-radius:50%;background:var(--coral);opacity:.2;right:-70px;top:-80px}
    .board-top{display:flex;justify-content:space-between;color:#d9cfd2;font-size:12px;position:relative}
    .live-dot{color:#e9b28d}.live-dot:before{content:"";display:inline-block;width:7px;height:7px;background:#e9b28d;border-radius:50%;margin-right:6px}
    .vertical-stack{height:320px;display:flex;align-items:end;gap:12px;margin-top:28px;position:relative}
    .v-card{flex:1;border-radius:15px;min-height:180px;padding:15px;color:#fff;display:flex;flex-direction:column;justify-content:space-between;border:1px solid rgba(255,255,255,.12)}
    .v-card:nth-child(1){height:70%;background:#6f5264}.v-card:nth-child(2){height:93%;background:#c06f60}.v-card:nth-child(3){height:82%;background:#8c9d87}
    .v-card span{font-size:11px;color:rgba(255,255,255,.75)}.v-card b{font-size:16px;line-height:1.45}
    .board-note{position:absolute;left:20px;bottom:18px;color:#bcb0b4;font-size:12px}
    section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section-head p{max-width:530px;color:var(--muted);margin:0}
    .metrics{padding:24px 0 72px}
    .metric-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:12px}
    .metric{background:var(--panel);border:1px solid var(--line);padding:23px;border-radius:16px;min-height:132px}
    .metric:first-child{background:var(--plum);color:#fff}.metric:first-child .metric-label{color:#eadfe4}
    .metric-value{font-size:35px;font-weight:800;line-height:1;margin-bottom:13px}
    .metric-label{font-size:13px;color:var(--muted)}
    .matrix{background:#f3ebe5}
    .matrix-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}
    .feature-card,.entry-card,.compare-card,.info-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:var(--ease)}
    .feature-card:hover,.entry-card:hover,.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d8b9af}
    .feature-card{min-height:250px;display:flex;flex-direction:column;justify-content:space-between}
    .feature-card .index{color:var(--coral);font-weight:800;font-size:13px}
    .feature-card p,.entry-card p,.compare-card p,.info-card p{color:var(--muted);font-size:14px;margin:12px 0 0}
    .entry-column{display:grid;gap:16px}
    .entry-card{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:21px}
    .entry-card h3{font-size:18px}.arrow{font-size:22px;color:var(--coral)}
    .tag{display:inline-block;padding:4px 9px;border-radius:8px;background:#f1e4df;color:var(--plum);font-size:11px;font-weight:700;margin-top:14px}
    .compare{background:var(--dark);color:#fff}.compare h2,.compare h3{color:#fff}.compare .section-head p{color:#c5b9bd}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .compare-card{background:var(--dark-soft);border-color:#50434b;min-height:210px}.compare-card p{color:#c9bdc1}
    .compare-card.highlight{border-color:var(--peach);background:#463541}
    .bar{height:7px;background:#5c4c55;border-radius:20px;margin:21px 0 10px;overflow:hidden}.bar i{display:block;height:100%;background:var(--peach);border-radius:20px}
    .stream-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .stream{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
    .stream-number{font-size:24px;color:var(--coral);font-weight:800;line-height:1}
    .stream h3{font-size:17px}.stream p{margin:5px 0 0;color:var(--muted);font-size:13px}
    .status{font-size:11px;color:var(--success);border:1px solid #c9d8ce;border-radius:20px;padding:3px 8px;float:right}
    .guide{background:#eee5df}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .guide-item{padding:24px;background:var(--panel);border-radius:16px;border-left:4px solid var(--coral)}
    .guide-item b{display:block;font-size:25px;color:var(--plum);margin-bottom:8px}.guide-item p{margin:0;color:var(--muted);font-size:14px}
    .faq-list{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line);padding:8px 0}
    summary{cursor:pointer;list-style:none;padding:18px 4px;font-weight:700;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--coral);font-size:24px;font-weight:400}details[open] summary:after{content:"−"}
    .answer{color:var(--muted);font-size:14px;padding:0 38px 20px 4px}
    .contact{padding-top:55px}.cta-panel{background:var(--plum);color:#fff;border-radius:var(--radius-lg);padding:42px;display:grid;grid-template-columns:.9fr 1.1fr;gap:42px}
    .cta-panel h2{color:#fff}.cta-panel p{color:#eadfe4}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    label{font-size:13px;color:#f5e9e8;display:block}input,textarea{width:100%;margin-top:6px;border:1px solid rgba(255,255,255,.25);border-radius:10px;background:rgba(255,255,255,.1);color:#fff;padding:12px 13px}textarea{min-height:100px;resize:vertical}.full{grid-column:1/-1}.form-button{background:var(--peach);color:var(--dark);width:100%;margin-top:15px}.form-button:hover{background:#f6d3c2}
    .site-footer{background:var(--dark);color:#d6cbd0;padding:42px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}.site-footer h3{color:#fff;font-size:16px;margin-bottom:13px}.site-footer p,.site-footer a{color:#a99da3;font-size:13px}.site-footer a:hover{color:var(--peach)}.footer-bottom{border-top:1px solid #493d45;margin-top:30px;padding-top:17px;color:#95878e;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:900px){.hero-grid,.matrix-grid,.cta-panel{grid-template-columns:1fr}.metric-grid{grid-template-columns:1fr 1fr}.metric:first-child{grid-column:span 2}.visual-board{max-width:620px}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:640px){.container{padding:0 17px}.nav-wrap{min-height:68px}.brand{font-size:14px;max-width:245px;white-space:normal;line-height:1.2}.brand-mark{width:32px;height:32px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:12px 17px;border-bottom:1px solid var(--line);box-shadow:0 14px 20px rgba(60,40,45,.08);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px}.hero{padding-top:28px}.crumb{margin-bottom:20px;overflow:auto;white-space:nowrap}.hero-copy{font-size:16px}.hero-buttons .button{width:100%}h1{font-size:39px}.visual-board{min-height:365px;padding:15px}.vertical-stack{height:270px;gap:8px}.v-card{padding:10px}.metric-grid{gap:9px}.metric{padding:17px;min-height:118px}.metric-value{font-size:28px}.metric:first-child{grid-column:span 2}section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:14px}.compare-grid,.stream-grid,.guide-grid,.form-grid,.footer-grid{grid-template-columns:1fr}.full{grid-column:auto}.cta-panel{padding:27px 20px;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}

/* roulang page: category1 */
:root{
      --ink:#242226;
      --muted:#756e74;
      --paper:#fbf8f4;
      --panel:#fffdfa;
      --dark:#292329;
      --dark-soft:#393039;
      --plum:#713f5f;
      --plum-deep:#572e49;
      --coral:#d97762;
      --peach:#f1c1a7;
      --sage:#a8b6a0;
      --line:#e9ded8;
      --success:#5d806d;
      --warning:#b77a45;
      --radius:18px;
      --radius-lg:28px;
      --shadow:0 16px 40px rgba(71,47,54,.09);
      --ease:all .28s ease;
    }
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.28;letter-spacing:-.035em}
    h1{font-size:clamp(34px,5vw,64px)}
    h2{font-size:clamp(27px,3vw,40px)}
    h3{font-size:20px}
    p{margin:0}
    .container{max-width:1180px;margin:0 auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(251,248,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,222,216,.85)}
    .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:5px 5px 0 var(--peach)}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-links a{padding:10px 14px;border-radius:10px;color:var(--muted);font-size:14px}
    .nav-links a:hover,.nav-links a.active{background:#f0e6e1;color:var(--plum-deep)}
    .nav-links .nav-action{border:1px solid var(--plum);color:var(--plum-deep)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--plum);font-size:25px;padding:8px}
    .crumb-wrap{padding:22px 0 0}
    .breadcrumbs{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .breadcrumbs a:hover{color:var(--plum)}
    .breadcrumbs .current{color:var(--plum-deep);font-weight:700}
    .crumb-separator{color:#c9b9b4}
    .page-hero{padding:38px 0 58px}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--plum);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--coral)}
    .page-hero h1{margin-top:17px;max-width:720px}
    .hero-copy{max-width:650px;margin-top:21px;color:var(--muted);font-size:18px;line-height:1.9}
    .hero-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:12px;border:1px solid transparent;font-weight:700;font-size:14px;transition:var(--ease)}
    .button.primary{background:var(--plum);color:#fff}
    .button.primary:hover{background:var(--plum-deep);transform:translateY(-2px);box-shadow:0 9px 18px rgba(113,63,95,.2)}
    .button.secondary{background:transparent;border-color:var(--line);color:var(--plum-deep)}
    .button.secondary:hover{border-color:var(--plum);background:#f4ebe7}
    .button:focus,a:focus,input:focus,textarea:focus,select:focus,summary:focus{outline:3px solid rgba(217,119,98,.3);outline-offset:3px}
    .index-panel{background:var(--dark);border-radius:var(--radius-lg);padding:26px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .index-panel:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(241,193,167,.28);border-radius:50%;right:-55px;bottom:-75px}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #51464e;padding-bottom:18px;margin-bottom:18px}
    .panel-label{font-size:12px;color:#cdbfc5;letter-spacing:.08em}
    .status{display:inline-flex;align-items:center;gap:6px;color:#eac4b5;font-size:12px}
    .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 4px rgba(217,119,98,.16)}
    .panel-number{font-size:64px;font-weight:800;line-height:1;color:var(--peach);letter-spacing:-.08em}
    .panel-desc{color:#cbbec3;font-size:13px;margin-top:10px}
    .panel-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}
    .panel-cell{background:var(--dark-soft);border:1px solid #51464e;border-radius:13px;padding:14px}
    .panel-cell strong{display:block;font-size:20px;color:#fff}
    .panel-cell span{font-size:12px;color:#bcaeb5}
    section{padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section-head p{max-width:560px;color:var(--muted);margin:0}
    .metrics{padding-top:0}
    .metric-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;gap:12px}
    .metric{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;min-height:132px}
    .metric:first-child{background:#f2e6e1}
    .metric strong{display:block;color:var(--plum-deep);font-size:32px;line-height:1.2}
    .metric span{display:block;color:var(--muted);font-size:13px;margin-top:8px}
    .filter-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding:15px 18px;background:var(--panel);border:1px solid var(--line);border-radius:15px;margin-bottom:24px}
    .filter-tags{display:flex;gap:8px;flex-wrap:wrap}
    .tag{display:inline-flex;align-items:center;padding:6px 11px;border-radius:9px;background:#f1e4df;color:var(--plum);font-size:12px;font-weight:700}
    .tag.muted{background:#f5f1ed;color:var(--muted)}
    .sort-label{color:var(--muted);font-size:13px}
    .sort-label select{border:1px solid var(--line);border-radius:8px;background:#fffdfa;color:var(--plum-deep);padding:7px 28px 7px 9px;margin-left:7px}
    .index-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:22px;align-items:start}
    .side-note{background:var(--dark-soft);color:#fff;border-radius:var(--radius);padding:27px;position:sticky;top:104px}
    .side-note h3{color:#fff;margin-bottom:14px}
    .side-note p{color:#cdbfc5;font-size:14px}
    .side-list{list-style:none;margin:23px 0 0;padding:0}
    .side-list li{border-top:1px solid #574951;padding:12px 0;color:#e3d7da;font-size:13px}
    .side-list b{color:var(--peach);margin-right:8px}
    .entry-list{display:grid;gap:14px}
    .entry-card{display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:23px 25px;transition:var(--ease)}
    .entry-card:hover{transform:translateX(4px);border-color:#d8b9af;box-shadow:var(--shadow)}
    .entry-no{font-size:28px;font-weight:800;color:var(--coral)}
    .entry-card h3{font-size:19px}
    .entry-card p{color:var(--muted);font-size:14px;margin-top:6px}
    .entry-meta{color:var(--muted);font-size:12px;text-align:right;white-space:nowrap}
    .entry-meta b{display:block;color:var(--success);font-size:12px;margin-bottom:5px}
    .compare{background:var(--dark);color:#fff}
    .compare h2{color:#fff}
    .compare .section-kicker{color:var(--peach)}
    .compare .section-head p{color:#c5b9bd}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .compare-card{background:var(--dark-soft);border:1px solid #50434b;border-radius:var(--radius);padding:27px;min-height:225px}
    .compare-card.highlight{border-color:var(--peach);background:#463541}
    .compare-card h3{color:#fff}
    .compare-card p{color:#c9bdc1;font-size:14px;margin-top:12px}
    .compare-card ul{list-style:none;margin:20px 0 0;padding:0}
    .compare-card li{color:#e3d7da;font-size:13px;padding:7px 0;border-top:1px solid #554951}
    .compare-card li:before{content:"＋";color:var(--peach);font-weight:800;margin-right:8px}
    .faq-list{max-width:850px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line);padding:7px 0}
    .faq-item summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;padding:17px 3px;font-weight:700;color:var(--ink)}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:21px;font-weight:400}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{color:var(--muted);font-size:14px;padding:0 38px 18px 3px}
    .light-cta{background:#f0e4df;border:1px solid #e4d0c9;border-radius:var(--radius-lg);padding:34px 38px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .light-cta p{color:var(--muted);font-size:14px;margin-top:8px;max-width:620px}
    .site-footer{background:var(--dark);color:#d6cbd0;padding:42px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
    .site-footer .brand{color:#fff}
    .site-footer h3{color:#fff;font-size:16px;margin-bottom:13px}
    .site-footer p,.site-footer a{color:#a99da3;font-size:13px}
    .site-footer a:hover{color:var(--peach)}
    .footer-bottom{border-top:1px solid #4d4249;margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#91848d;font-size:12px}
    @media(max-width:900px){
      .hero-grid,.index-layout{grid-template-columns:1fr}
      .side-note{position:static}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .metric:first-child{grid-column:span 2}
    }
    @media(max-width:700px){
      .nav-wrap{min-height:68px}
      .brand{font-size:15px;white-space:normal;line-height:1.2}
      .brand-mark{flex:0 0 36px;width:36px;height:36px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;padding:10px;background:var(--panel);border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.is-open{display:flex}
      .nav-links a{width:100%}
      .page-hero{padding-top:27px}
      .hero-copy{font-size:16px}
      section{padding:55px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .entry-card{grid-template-columns:40px 1fr}
      .entry-meta{grid-column:2;text-align:left}
      .compare-grid{grid-template-columns:1fr}
      .light-cta{display:block;padding:28px 24px}
      .light-cta .button{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
      .footer-grid>div:first-child{grid-column:span 2}
    }
    @media(max-width:520px){
      .container{padding:0 17px}
      h1{font-size:36px}
      .metric-grid{grid-template-columns:1fr 1fr;gap:9px}
      .metric,.metric:first-child{grid-column:auto;padding:17px;min-height:112px}
      .metric strong{font-size:25px}
      .filter-bar{align-items:flex-start}
      .panel-number{font-size:52px}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:5px}
    }

/* roulang page: category2 */
:root{
      --ink:#242226;
      --muted:#756e74;
      --paper:#fbf8f4;
      --panel:#fffdfa;
      --dark:#292329;
      --dark-soft:#393039;
      --plum:#713f5f;
      --plum-deep:#572e49;
      --coral:#d97762;
      --peach:#f1c1a7;
      --sage:#a8b6a0;
      --line:#e9ded8;
      --success:#5d806d;
      --warning:#b77a45;
      --radius:18px;
      --radius-lg:28px;
      --shadow:0 16px 40px rgba(71,47,54,.09);
      --ease:all .28s ease;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
    h1,h2,h3,p{margin-top:0}
    h1,h2,h3{line-height:1.28;letter-spacing:-.035em}
    h1{font-size:clamp(36px,5vw,64px);margin-bottom:22px}
    h2{font-size:clamp(27px,3vw,39px);margin-bottom:14px}
    h3{font-size:19px;margin-bottom:8px}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{max-width:1180px;margin:0 auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(251,248,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,222,216,.85)}
    .nav-wrap{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--plum);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:5px 5px 0 var(--peach)}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-links a{padding:10px 14px;border-radius:10px;color:var(--muted);font-size:14px}
    .nav-links a:hover,.nav-links a.active{background:#f0e6e1;color:var(--plum-deep)}
    .nav-links .nav-action{border:1px solid var(--plum);color:var(--plum-deep)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--plum);font-size:25px;padding:8px}
    .breadcrumb-bar{padding:22px 0 0}
    .breadcrumbs{display:flex;align-items:center;flex-wrap:wrap;gap:9px;color:var(--muted);font-size:13px}
    .breadcrumbs a{color:var(--plum)}
    .breadcrumbs a:hover{text-decoration:underline}
    .crumb-current{color:var(--ink);font-weight:700}
    .hero{padding:42px 0 60px}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--plum);font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:var(--coral)}
    .hero-copy{max-width:650px;color:var(--muted);font-size:18px;line-height:1.9}
    .hero-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:12px;border:1px solid transparent;font-weight:700;font-size:14px;transition:var(--ease)}
    .button.primary{background:var(--plum);color:#fff}
    .button.primary:hover{background:var(--plum-deep);transform:translateY(-2px);box-shadow:0 9px 18px rgba(113,63,95,.2)}
    .button.secondary{background:transparent;border-color:var(--line);color:var(--plum-deep)}
    .button.secondary:hover{border-color:var(--plum);background:#f4ebe7}
    .button:focus,.nav-links a:focus,input:focus,textarea:focus,summary:focus,.menu-toggle:focus{outline:3px solid rgba(217,119,98,.3);outline-offset:3px}
    .theme-board{background:var(--dark);border-radius:var(--radius-lg);padding:24px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .theme-board:after{content:"";position:absolute;width:170px;height:170px;border:1px solid rgba(241,193,167,.28);border-radius:50%;right:-48px;top:-48px}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #51464e;padding-bottom:17px;margin-bottom:18px}
    .board-label{font-size:12px;color:#cbbdc3;letter-spacing:.08em}
    .live-dot{display:inline-flex;align-items:center;gap:7px;color:var(--peach);font-size:12px}
    .live-dot:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 4px rgba(217,119,98,.16)}
    .board-main{padding:18px 0 25px}
    .board-main small{color:#b7a9b0;font-size:12px}
    .board-main strong{display:block;font-size:31px;line-height:1.35;margin-top:6px;max-width:330px}
    .board-list{display:grid;gap:10px}
    .board-row{display:flex;justify-content:space-between;gap:14px;padding:12px 14px;border-radius:11px;background:var(--dark-soft);font-size:13px;color:#d8ccd0}
    .board-row b{color:var(--peach);font-weight:700}
    section{padding:72px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .section-head p{max-width:540px;color:var(--muted);margin:0}
    .filter-panel{background:#f2e7e2;border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}
    .filter-label{font-size:13px;font-weight:800;color:var(--plum-deep)}
    .filter-list{display:flex;flex-wrap:wrap;gap:8px}
    .filter-chip{border:1px solid #dfcfc8;background:var(--panel);color:var(--muted);border-radius:9px;padding:8px 12px;font-size:12px;transition:var(--ease)}
    .filter-chip:hover,.filter-chip.active{background:var(--plum);border-color:var(--plum);color:#fff}
    .theme-layout{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:start}
    .index-panel{position:sticky;top:105px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
    .index-panel h3{font-size:17px}
    .index-panel p{font-size:13px;color:var(--muted);margin-bottom:18px}
    .index-links{display:grid;gap:5px}
    .index-links a{padding:10px 12px;border-left:3px solid transparent;color:var(--muted);font-size:13px;border-radius:0 8px 8px 0}
    .index-links a:hover,.index-links a.active{border-left-color:var(--coral);background:#f5ebe7;color:var(--plum-deep);font-weight:700}
    .theme-stream{display:grid;gap:14px}
    .theme-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:start;transition:var(--ease)}
    .theme-card:hover{transform:translateX(4px);border-color:#d8b9af;box-shadow:var(--shadow)}
    .theme-no{font-size:24px;color:var(--coral);font-weight:800;line-height:1}
    .theme-card p{color:var(--muted);font-size:14px;margin:8px 0 0}
    .theme-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:13px}
    .tag{display:inline-block;padding:4px 9px;border-radius:8px;background:#f1e4df;color:var(--plum);font-size:11px;font-weight:700}
    .tag.green{background:#e5eee7;color:var(--success)}
    .card-arrow{font-size:22px;color:var(--coral);padding-top:3px}
    .compare{background:var(--dark);color:#fff}
    .compare .section-kicker{color:var(--peach)}
    .compare .section-head p{color:#c5b9bd}
    .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .compare-card{background:var(--dark-soft);border:1px solid #50434b;border-radius:var(--radius);padding:27px;min-height:220px}
    .compare-card.highlight{border-color:var(--peach);background:#463541}
    .compare-card p{color:#c9bdc1;font-size:14px}
    .compare-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px}
    .compare-list li{display:flex;justify-content:space-between;gap:18px;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:9px;color:#dfd4d8;font-size:13px}
    .compare-list b{color:var(--peach)}
    .faq-list{max-width:850px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line);padding:8px 0}
    summary{cursor:pointer;list-style:none;padding:16px 4px;font-weight:700;color:var(--ink);display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";font-size:22px;color:var(--coral);font-weight:400}
    details[open] summary:after{content:"−"}
    .faq-answer{padding:0 34px 18px 4px;color:var(--muted);font-size:14px}
    .cta-band{padding:72px 0}
    .cta-panel{background:var(--plum);color:#fff;border-radius:var(--radius-lg);padding:42px;display:flex;align-items:center;justify-content:space-between;gap:35px}
    .cta-panel h2{color:#fff;margin-bottom:10px}
    .cta-panel p{color:#eadfe4;margin:0;max-width:620px}
    .site-footer{background:var(--dark);color:#d6cbd0;padding:42px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
    .site-footer .brand{color:#fff}
    .site-footer h3{color:#fff;font-size:16px;margin-bottom:13px}
    .site-footer p,.site-footer a{color:#a99da3;font-size:13px}
    .site-footer a:hover{color:var(--peach)}
    .footer-bottom{border-top:1px solid #4d4149;margin-top:30px;padding-top:17px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#958890;font-size:12px}
    @media(max-width:900px){
      .hero-grid{grid-template-columns:1fr;gap:30px}
      .theme-layout{grid-template-columns:210px 1fr}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .cta-panel{align-items:flex-start;flex-direction:column}
    }
    @media(max-width:700px){
      .nav-wrap{min-height:68px}
      .brand{font-size:15px;max-width:250px}
      .brand-mark{width:34px;height:34px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:75px;background:var(--panel);padding:12px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.is-open{display:flex}
      .nav-links a{text-align:center}
      .hero{padding-top:30px}
      .hero-copy{font-size:16px}
      section{padding:54px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .filter-panel{display:block}
      .filter-list{margin-top:13px}
      .theme-layout{grid-template-columns:1fr}
      .index-panel{position:static}
      .index-links{display:flex;overflow:auto}
      .index-links a{white-space:nowrap}
      .theme-card{grid-template-columns:38px 1fr;gap:14px;padding:20px}
      .card-arrow{grid-column:2}
      .compare-grid{grid-template-columns:1fr}
      .cta-panel{padding:28px 22px}
      .footer-grid{grid-template-columns:1fr;gap:20px}
    }
    @media(max-width:480px){
      .container{padding:0 17px}
      h1{font-size:35px}
      .metric-grid{grid-template-columns:1fr 1fr;gap:9px}
      .theme-board{padding:19px}
      .board-main strong{font-size:25px}
      .hero-buttons .button{width:100%}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
    }