/* roulang page: index */
:root{
      --bg:#f8fbff;
      --paper:#ffffff;
      --ink:#17243d;
      --muted:#66748b;
      --brand:#2563eb;
      --brand-dark:#1746ad;
      --soft:#eef5ff;
      --cyan:#dff7f7;
      --coral:#fff0ec;
      --line:#dce7f5;
      --radius:22px;
      --shadow:0 18px 45px rgba(37,76,133,.10);
      --shadow-sm:0 8px 24px rgba(37,76,133,.08);
      --max:1180px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:var(--bg);color:var(--ink);
      font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      line-height:1.75;-webkit-font-smoothing:antialiased
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(37,99,235,.35);outline-offset:3px}
    .container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}
    .topbar{background:#edf4fc;border-bottom:1px solid var(--line);font-size:13px;color:#50617a}
    .topbar-inner{min-height:42px;display:flex;justify-content:space-between;align-items:center;gap:16px}
    .top-actions{display:flex;gap:10px;align-items:center;white-space:nowrap}
    .top-actions a,.top-actions button{border:0;background:transparent;color:var(--brand);font-size:13px;padding:4px 8px;border-radius:8px}
    .top-actions button:hover,.top-actions a:hover{background:#dcecff}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 3px 18px rgba(25,65,120,.04)}
    .nav{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em;white-space:nowrap;font-size:18px}
    .logo-mark{width:35px;height:35px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:0 7px 16px rgba(37,99,235,.25)}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-link{color:#53627b;font-size:14px;padding:9px 13px;border-radius:10px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:var(--brand);background:var(--soft)}
    .nav-ctas{display:flex;gap:9px;margin-left:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 9px 20px rgba(37,99,235,.2)}
    .btn-primary:hover{background:var(--brand-dark);box-shadow:0 12px 25px rgba(37,99,235,.28)}
    .btn-secondary{background:#fff;color:var(--brand);border-color:#bcd0ee}
    .btn-secondary:hover{background:var(--soft);border-color:#8db0e7}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px;color:var(--brand)}
    .hero{padding:74px 0 58px;overflow:hidden}
    .hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
    .eyebrow,.badge{display:inline-flex;align-items:center;gap:7px;border-radius:999px;background:var(--soft);color:var(--brand);font-size:12px;font-weight:800;padding:5px 11px}
    .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:#28b9b2}
    h1,h2,h3{margin:0;line-height:1.2;letter-spacing:-.035em}
    h1{font-size:clamp(38px,5vw,66px);max-width:650px;margin-top:18px}
    h2{font-size:clamp(28px,3.2vw,42px)}
    h3{font-size:20px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:590px;margin:22px 0 28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .metric-row{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
    .metric strong{display:block;font-size:25px;line-height:1.2}
    .metric span{font-size:12px;color:var(--muted)}
    .hero-art{position:relative;min-height:410px;transform:rotate(2.5deg)}
    .cover-main{position:absolute;inset:12px 60px 12px 45px;border-radius:30px;background:#d8e9ff;border:1px solid #c3d9f5;overflow:hidden;box-shadow:var(--shadow)}
    .cover-main::before{content:"";position:absolute;width:250px;height:350px;background:#93baf0;border-radius:48% 52% 30% 70%;left:34%;top:6%;transform:rotate(24deg);opacity:.8}
    .cover-main::after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:#fff;right:-35px;bottom:-35px;opacity:.6}
    .cover-label{position:absolute;z-index:2;left:28px;bottom:25px;background:rgba(255,255,255,.88);padding:14px 17px;border-radius:14px;color:var(--ink);font-weight:800;box-shadow:var(--shadow-sm)}
    .cover-label small{display:block;color:var(--muted);font-size:11px;font-weight:500;margin-top:3px}
    .art-chip{position:absolute;z-index:3;background:#fff;padding:12px 14px;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-sm);font-size:13px;font-weight:700}
    .chip-a{top:0;right:0}.chip-b{bottom:0;left:0;background:#fff7f3}.chip-c{right:0;bottom:65px;background:#eafafa}
    .section{padding:86px 0}
    .section-soft{background:var(--soft)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}
    .section-head p{max-width:510px;color:var(--muted);margin:0}
    .story{display:grid;grid-template-columns:1.05fr .95fr;gap:55px;align-items:center}
    .story p{color:var(--muted);font-size:16px;margin:18px 0}
    .story-panel{padding:28px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .story-panel .line-item{display:flex;gap:15px;padding:16px 0;border-bottom:1px solid var(--line)}
    .story-panel .line-item:last-child{border:0;padding-bottom:0}
    .round-icon{width:38px;height:38px;flex:0 0 38px;border-radius:13px;background:var(--soft);color:var(--brand);display:grid;place-items:center;font-weight:800}
    .line-item b{display:block;font-size:15px}.line-item span{font-size:13px;color:var(--muted)}
    .feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .feature-card,.small-card,.quote,.info-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:.22s}
    .feature-card:hover,.small-card:hover,.quote:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .visual-block{height:220px;background:#dceaff;position:relative;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0}
    .visual-block::before{content:"";position:absolute;width:58%;height:150%;background:#aac9f5;top:-30%;left:23%;transform:rotate(27deg);border-radius:50%}
    .visual-block::after{content:"国产麻豆一精品一av";position:absolute;left:24px;bottom:22px;color:#fff;font-weight:800;font-size:20px;letter-spacing:.02em}
    .feature-body,.small-body{padding:24px}.feature-body p,.small-body p{color:var(--muted);font-size:14px;margin:10px 0 17px}
    .small-stack{display:grid;gap:22px}.small-card{display:grid;grid-template-columns:108px 1fr;overflow:hidden}.small-visual{background:#e1f6f5;min-height:160px;position:relative}.small-visual::after{content:"";position:absolute;width:70px;height:125px;left:22px;top:21px;background:#a2dcda;border-radius:50% 50% 42% 38%;transform:rotate(-20deg)}
    .small-card:nth-child(2) .small-visual{background:#fff0ea}.small-card:nth-child(2) .small-visual::after{background:#f1b5a4}
    .tag-row{display:flex;gap:7px;flex-wrap:wrap}.tag{font-size:11px;color:#54708f;background:#f1f6fc;border-radius:7px;padding:3px 8px}.tag.coral{background:var(--coral);color:#a85b4b}.tag.green{background:var(--cyan);color:#257e7b}
    .bubble-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .quote{padding:34px}.quote blockquote{font-size:23px;line-height:1.55;font-weight:700;margin:0 0 24px;max-width:650px}.quote blockquote::before{content:"“";color:var(--brand);font-size:52px;vertical-align:-18px;margin-right:7px}.quote small{color:var(--muted)}
    .quote-side{background:#173d79;color:#fff;border-radius:var(--radius);padding:30px;position:relative;overflow:hidden}.quote-side::after{content:"";position:absolute;width:170px;height:170px;border:28px solid rgba(255,255,255,.1);border-radius:50%;right:-50px;bottom:-55px}.quote-side p{color:#cbdcf7;font-size:14px}
    .info-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}.info-box{padding:25px}.info-list{margin:0;padding:0;list-style:none}.info-list li{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding:15px 0;font-size:14px}.info-list li:last-child{border:0}.info-list a:hover{color:var(--brand)}.date{color:#8a98aa;font-size:12px;white-space:nowrap}
    .subscribe{background:#eaf3ff;border:1px solid #cbdff8;border-radius:30px;padding:50px;display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}.subscribe p{color:var(--muted);margin:15px 0 0}.subscribe-form{display:flex;gap:10px}.subscribe-form input{min-width:0;flex:1;border:1px solid #bed2ed;border-radius:12px;padding:0 15px;height:46px;background:#fff;color:var(--ink)}.subscribe-form input::placeholder{color:#9aa8b9}
    .faq-wrap{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:0;background:transparent;padding:20px 0;color:var(--ink);font-weight:800;font-size:16px}.faq-q span:last-child{color:var(--brand);font-size:23px;transition:.2s}.faq-a{display:none;color:var(--muted);font-size:14px;padding:0 36px 20px 0}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .cta{padding:76px 0;background:#dfeeff}.cta-inner{text-align:center;max-width:720px;margin:auto}.cta-inner p{color:var(--muted);margin:17px auto 25px}.cta-links{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
    footer{background:#fff;border-top:1px solid var(--line);padding:42px 0 24px}.footer-top{display:flex;justify-content:space-between;gap:35px}.footer-brand p{color:var(--muted);font-size:13px;max-width:330px}.footer-links{display:flex;gap:14px 24px;flex-wrap:wrap;align-content:start;font-size:13px;color:#60718a}.footer-links a:hover{color:var(--brand)}.footer-bottom{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;color:#8a98aa;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    @media(max-width:900px){.nav{gap:14px}.nav-links{gap:0}.nav-link{padding:8px}.nav-ctas .btn{padding:0 12px}.hero-grid,.story,.feature-layout,.bubble-grid,.info-grid,.subscribe{grid-template-columns:1fr}.hero-art{min-height:350px;max-width:600px;width:100%;margin:auto}.section{padding:66px 0}}
    @media(max-width:680px){.container{width:min(calc(100% - 36px),var(--max))}.topbar-inner{padding:8px 0;align-items:flex-start}.top-actions{flex-wrap:wrap;justify-content:flex-end}.nav{min-height:68px;justify-content:space-between}.menu-toggle{display:block}.nav-links,.nav-ctas{display:none}.nav.open{flex-wrap:wrap}.nav.open .nav-links,.nav.open .nav-ctas{display:flex;width:100%}.nav.open .nav-links{order:3;flex-direction:column;align-items:stretch}.nav.open .nav-ctas{order:4;margin:0;padding-bottom:14px}.nav.open .nav-ctas .btn{flex:1}.hero{padding:48px 0 35px}h1{font-size:40px}.hero-copy{font-size:15px}.hero-art{min-height:290px}.cover-main{inset:10px 32px}.section-head{display:block}.section-head p{margin-top:14px}.small-card{grid-template-columns:88px 1fr}.small-body{padding:18px}.subscribe{padding:30px 22px;border-radius:22px}.subscribe-form{flex-direction:column}.subscribe-form .btn{width:100%}.footer-top,.footer-bottom{display:block}.footer-links{margin-top:22px}.footer-bottom span{display:block;margin-top:7px}}

/* roulang page: category1 */
:root{
 --bg:#f8fbff;--paper:#fff;--ink:#17243d;--muted:#66748b;--brand:#2563eb;
 --brand-dark:#1746ad;--soft:#eef5ff;--cyan:#dff7f7;--coral:#fff0ec;
 --line:#dce7f5;--radius:22px;--shadow:0 18px 45px rgba(37,76,133,.10);
 --shadow-sm:0 8px 24px rgba(37,76,133,.08);--max:1180px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}
.topbar{background:#edf4fc;border-bottom:1px solid var(--line);font-size:13px;color:#50617a}
.topbar-inner{min-height:42px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.top-actions{display:flex;gap:5px;align-items:center}
.top-actions a,.top-actions button{border:0;background:transparent;color:var(--brand);font-size:13px;padding:4px 8px;border-radius:8px}
.top-actions button:hover,.top-actions a:hover{background:#dcecff}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 3px 18px rgba(25,65,120,.04)}
.nav{min-height:78px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em;white-space:nowrap;font-size:18px}
.logo-mark{width:35px;height:35px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:0 7px 16px rgba(37,99,235,.25)}
.nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
.nav-link{color:#53627b;font-size:14px;padding:9px 13px;border-radius:10px;transition:.2s}
.nav-link:hover,.nav-link.active{color:var(--brand);background:var(--soft)}
.nav-ctas{display:flex;gap:9px;margin-left:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav-link:focus-visible,.faq-q:focus-visible,.filter-option:focus-within{outline:3px solid rgba(37,99,235,.25);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 9px 20px rgba(37,99,235,.2)}
.btn-primary:hover{background:var(--brand-dark);box-shadow:0 12px 25px rgba(37,99,235,.28)}
.btn-secondary{background:#fff;color:var(--brand);border-color:#bcd0ee}
.btn-secondary:hover{background:var(--soft);border-color:#8db0e7}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;color:var(--brand)}
.page-hero{padding:58px 0 42px;background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;gap:8px;align-items:center;color:#71819a;font-size:13px;margin-bottom:20px}
.breadcrumb a:hover{color:var(--brand)}
.eyebrow,.badge{display:inline-flex;align-items:center;gap:7px;border-radius:999px;background:var(--soft);color:var(--brand);font-size:12px;font-weight:800;padding:5px 11px}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:#28b9b2}
.page-hero h1{font-size:clamp(32px,5vw,58px);line-height:1.18;letter-spacing:-.055em;margin:15px 0 15px;max-width:760px}
.page-hero p{color:var(--muted);max-width:720px;margin:0;font-size:16px}
.toolbar{margin-top:28px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.search-box{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid #bfd2eb;border-radius:13px;padding:0 14px;height:46px;min-width:min(100%,340px)}
.search-box input{border:0;outline:0;min-width:0;width:100%;color:var(--ink);background:transparent}
.search-box input::placeholder{color:#9aa8b9}
.sort-select{height:46px;border:1px solid #bfd2eb;border-radius:13px;padding:0 14px;color:#53627b;background:#fff}
.section{padding:72px 0}
.section-soft{background:var(--soft)}
.index-layout{display:grid;grid-template-columns:265px 1fr;gap:28px;align-items:start}
.filter-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);position:sticky;top:104px}
.filter-panel h2{font-size:18px;margin:0 0 18px}
.filter-group{padding:18px 0;border-top:1px solid var(--line)}
.filter-group:first-of-type{border-top:0;padding-top:0}
.filter-label{font-weight:800;font-size:13px;margin-bottom:10px;display:block}
.filter-option{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;padding:6px 0}
.filter-option input{accent-color:var(--brand);width:15px;height:15px}
.filter-tags{display:flex;gap:7px;flex-wrap:wrap}
.filter-tag{border:1px solid var(--line);background:#f8fbff;color:#5d718e;border-radius:8px;padding:5px 9px;font-size:12px;transition:.2s}
.filter-tag:hover,.filter-tag.selected{border-color:#8db0e7;color:var(--brand);background:var(--soft)}
.results-head{display:flex;justify-content:space-between;align-items:end;gap:15px;margin-bottom:17px}
.results-head h2{font-size:24px;letter-spacing:-.03em;margin:0}
.results-head span{color:var(--muted);font-size:13px}
.result-list{display:grid;gap:14px}
.result-card{display:grid;grid-template-columns:165px 1fr auto;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow-sm);transition:.22s}
.result-card:hover{transform:translateY(-3px);border-color:#aec8ed;box-shadow:var(--shadow)}
.visual{min-height:128px;border-radius:14px;background:#dcecff;position:relative;overflow:hidden}
.visual:before{content:"";position:absolute;width:90px;height:150px;background:#94b9ec;border-radius:54% 46% 60% 40%;left:35%;top:-10px;transform:rotate(23deg)}
.visual:after{content:"索引视觉";position:absolute;left:12px;bottom:10px;font-size:11px;color:#315f9c;background:rgba(255,255,255,.78);border-radius:6px;padding:3px 7px}
.visual.cyan{background:var(--cyan)}.visual.cyan:before{background:#9bd7d4}.visual.coral{background:var(--coral)}.visual.coral:before{background:#e8b6a6}
.result-body h3{font-size:18px;margin:0 0 7px}
.result-body p{color:var(--muted);font-size:13px;margin:0 0 12px;max-width:510px}
.tag-row{display:flex;gap:7px;flex-wrap:wrap}
.tag{font-size:11px;color:#54708f;background:#f1f6fc;border-radius:7px;padding:3px 8px}
.tag.coral{background:var(--coral);color:#a85b4b}.tag.green{background:var(--cyan);color:#257e7b}
.result-meta{display:flex;flex-direction:column;align-items:flex-end;gap:12px;color:#7b8ba1;font-size:12px;white-space:nowrap}
.text-link{color:var(--brand);font-size:13px;font-weight:800}
.text-link:hover{color:var(--brand-dark)}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:28px}
.page-number{width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;color:#60728b;display:grid;place-items:center}
.page-number:hover,.page-number.current{background:var(--brand);border-color:var(--brand);color:#fff}
.info-strip{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
.info-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.info-box h2{font-size:22px;margin:0 0 10px}
.info-box p{color:var(--muted);font-size:14px;margin:0}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
.stat{background:#f8fbff;border-radius:14px;padding:15px}.stat b{display:block;color:var(--brand);font-size:24px;line-height:1.2}.stat span{font-size:12px;color:var(--muted)}
.faq-wrap{max-width:850px;margin:auto}
.faq-wrap h2{text-align:center;font-size:30px;margin:0 0 30px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:0;background:transparent;padding:20px 0;color:var(--ink);font-weight:800;font-size:16px}
.faq-q span:last-child{color:var(--brand);font-size:23px;transition:.2s}
.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
.faq-item.open .faq-answer{display:block}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.cta{padding:62px 0;background:#eaf3ff}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:clamp(25px,4vw,40px);line-height:1.25;letter-spacing:-.04em;margin:0 0 10px}.cta p{color:var(--muted);margin:0}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.site-footer{background:#fff;border-top:1px solid var(--line);padding:45px 0 22px}
.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:30px}
.footer-brand{max-width:360px}.footer-brand p{color:var(--muted);font-size:13px;margin:15px 0 0}
.footer-links{display:flex;gap:14px 22px;flex-wrap:wrap;align-content:start;max-width:520px}
.footer-links a{color:#5d6f88;font-size:13px}.footer-links a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#8190a4;font-size:12px}
.empty-state{display:none;background:#fff;border:1px dashed #b9cde8;border-radius:18px;text-align:center;padding:38px;color:var(--muted)}
@media(max-width:900px){
 .nav{gap:15px}.nav-links{gap:0}.nav-link{padding-inline:9px}.nav-ctas{margin-left:0}
 .index-layout{grid-template-columns:220px 1fr}.result-card{grid-template-columns:125px 1fr}.result-meta{grid-column:2;align-items:flex-start;flex-direction:row}
}
@media(max-width:700px){
 .container{width:min(calc(100% - 36px),var(--max))}
 .topbar-inner{align-items:flex-start;padding:8px 0;flex-direction:column;gap:3px}.top-actions{flex-wrap:wrap}
 .nav{min-height:68px;flex-wrap:wrap}.logo{font-size:16px}.menu-toggle{display:block;margin-left:auto}
 .nav-links{display:none;order:4;width:100%;flex-direction:column;align-items:stretch;margin:0;padding:8px 0 12px;border-top:1px solid var(--line)}
 .nav.open .nav-links{display:flex}.nav-link{padding:11px 12px}.nav-ctas{display:none;order:5;width:100%;padding-bottom:12px}.nav.open .nav-ctas{display:flex}.nav-ctas .btn{flex:1}
 .page-hero{padding:42px 0 30px}.page-hero h1{font-size:36px}
 .toolbar{align-items:stretch}.search-box{min-width:100%}.sort-select{width:100%}
 .section{padding:52px 0}.index-layout{display:block}.filter-panel{position:static;margin-bottom:25px}
 .result-card{grid-template-columns:96px 1fr;gap:14px;padding:12px}.visual{min-height:110px}.result-meta{grid-column:2}
 .result-body h3{font-size:16px}.result-body p{font-size:12px}
 .info-strip{grid-template-columns:1fr}.stats{gap:7px}.stat{padding:12px 9px}
 .cta-inner,.footer-top{flex-direction:column;align-items:flex-start}.cta-actions{width:100%}.cta-actions .btn{flex:1}
 .footer-links{gap:12px 17px}.footer-bottom{flex-direction:column;gap:5px}
}
@media(max-width:480px){
 .result-card{grid-template-columns:1fr}.visual{min-height:135px}.result-meta{grid-column:1}.results-head{align-items:flex-start;flex-direction:column}.page-hero h1{font-size:32px}
}

/* roulang page: category2 */
:root{
      --bg:#f8fbff;
      --paper:#fff;
      --ink:#17243d;
      --muted:#66748b;
      --brand:#2563eb;
      --brand-dark:#1746ad;
      --soft:#eef5ff;
      --cyan:#dff7f7;
      --coral:#fff0ec;
      --line:#dce7f5;
      --radius:22px;
      --shadow:0 18px 45px rgba(37,76,133,.10);
      --shadow-sm:0 8px 24px rgba(37,76,133,.08);
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}
    .topbar{background:#edf4fc;border-bottom:1px solid var(--line);font-size:13px;color:#50617a}
    .topbar-inner{min-height:42px;display:flex;justify-content:space-between;align-items:center;gap:16px}
    .top-actions{display:flex;align-items:center;gap:5px;white-space:nowrap}
    .top-actions a,.top-actions button{border:0;background:transparent;color:var(--brand);font-size:13px;padding:4px 8px;border-radius:8px}
    .top-actions button:hover,.top-actions a:hover{background:#dcecff}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);box-shadow:0 3px 18px rgba(25,65,120,.04)}
    .nav{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em;white-space:nowrap;font-size:18px}
    .logo-mark{width:35px;height:35px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:0 7px 16px rgba(37,99,235,.25)}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-link{color:#53627b;font-size:14px;padding:9px 13px;border-radius:10px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:var(--brand);background:var(--soft)}
    .nav-ctas{display:flex;gap:9px;margin-left:8px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:12px;font-weight:700;font-size:14px;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,.nav-link:focus-visible,.faq-q:focus-visible,.menu-toggle:focus-visible{outline:3px solid rgba(37,99,235,.28);outline-offset:3px}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 9px 20px rgba(37,99,235,.2)}
    .btn-primary:hover{background:var(--brand-dark);box-shadow:0 12px 25px rgba(37,99,235,.28)}
    .btn-secondary{background:#fff;color:var(--brand);border-color:#bcd0ee}
    .btn-secondary:hover{background:var(--soft);border-color:#8db0e7}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;color:var(--brand)}
    .page-hero{padding:55px 0 42px;background:linear-gradient(180deg,#f1f7ff 0%,var(--bg) 100%);border-bottom:1px solid #e5eef9}
    .crumbs{display:flex;gap:8px;align-items:center;color:#70819a;font-size:13px;margin-bottom:20px}
    .crumbs a:hover{color:var(--brand)}
    .hero-row{display:flex;justify-content:space-between;align-items:end;gap:45px}
    .eyebrow,.badge{display:inline-flex;align-items:center;gap:7px;border-radius:999px;background:var(--soft);color:var(--brand);font-size:12px;font-weight:800;padding:5px 11px}
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:#28b9b2}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(32px,5vw,58px);line-height:1.16;letter-spacing:-.055em;margin:16px 0 17px;max-width:720px}
    h2{font-size:clamp(26px,3.5vw,38px);line-height:1.25;letter-spacing:-.04em;margin-bottom:12px}
    h3{font-size:19px;line-height:1.4;margin-bottom:8px}
    .hero-intro{max-width:680px;color:var(--muted);font-size:16px;margin-bottom:0}
    .hero-side{min-width:220px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}
    .hero-side strong{display:block;font-size:28px;color:var(--brand);line-height:1.2}
    .hero-side span{font-size:13px;color:var(--muted)}
    .section{padding:72px 0}
    .section-soft{background:var(--soft)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head p{max-width:530px;color:var(--muted);margin:0}
    .tag-row{display:flex;gap:7px;flex-wrap:wrap}
    .tag{font-size:11px;color:#54708f;background:#f1f6fc;border-radius:7px;padding:3px 8px}
    .tag.coral{background:var(--coral);color:#a85b4b}
    .tag.green{background:var(--cyan);color:#257e7b}
    .collection-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch}
    .feature-card,.small-card,.quote,.info-box,.group-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:.22s}
    .feature-card:hover,.small-card:hover,.quote:hover,.group-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .feature-card{overflow:hidden}
    .abstract-cover{min-height:225px;background:#d9e9ff;position:relative;overflow:hidden}
    .abstract-cover:before{content:"";position:absolute;width:250px;height:340px;border-radius:48% 52% 30% 70%;background:#95bdf2;left:32%;top:-45px;transform:rotate(25deg)}
    .abstract-cover:after{content:"";position:absolute;width:145px;height:145px;border-radius:50%;background:#fff;right:-22px;bottom:-30px;opacity:.65}
    .cover-label{position:absolute;z-index:1;left:22px;top:20px;background:#fff;padding:7px 10px;border-radius:9px;color:var(--brand);font-weight:800;font-size:12px}
    .feature-body,.small-body{padding:24px}
    .feature-body p,.small-body p{color:var(--muted);font-size:14px;margin:10px 0 17px}
    .small-stack{display:grid;gap:16px}
    .small-card{display:grid;grid-template-columns:112px 1fr;overflow:hidden}
    .small-visual{background:#e1f5f5;position:relative;min-height:150px}
    .small-visual:after{content:"";position:absolute;width:90px;height:130px;border-radius:55% 45% 30% 70%;background:#83d3d0;left:20px;top:17px;transform:rotate(-18deg)}
    .small-card:nth-child(2) .small-visual{background:#fff0ea}
    .small-card:nth-child(2) .small-visual:after{background:#f0b2a0}
    .filter-strip{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:17px 20px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);margin-bottom:28px}
    .filter-strip label{font-size:13px;color:var(--muted);font-weight:700}
    .filter-strip select{border:1px solid #c5d6eb;background:#fff;border-radius:9px;color:var(--ink);padding:8px 30px 8px 11px;min-width:135px}
    .filter-strip select:focus{outline:3px solid rgba(37,99,235,.16);border-color:var(--brand)}
    .group-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .group-card{padding:25px}
    .group-card.wide{grid-column:span 2;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;background:#fdfefe}
    .group-card p{color:var(--muted);font-size:14px;margin:10px 0 18px}
    .group-number{font-size:42px;font-weight:800;line-height:1;color:#c8dbf5;margin-bottom:16px}
    .mini-list{list-style:none;margin:0;padding:0}
    .mini-list li{display:flex;justify-content:space-between;gap:15px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
    .mini-list li:last-child{border-bottom:0}
    .mini-list span{color:var(--muted);font-size:12px}
    .stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .stat{padding:22px 20px;background:#fff;border:1px solid var(--line);border-radius:18px}
    .stat strong{display:block;color:var(--brand);font-size:29px;line-height:1.2;margin-bottom:5px}
    .stat span{color:var(--muted);font-size:13px}
    .quote-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:25px;align-items:stretch}
    .quote{padding:31px;background:#fff}
    .quote-mark{font-size:54px;line-height:.8;color:#8eb5ef}
    .quote p{font-size:19px;line-height:1.65;margin:17px 0;color:#33435c}
    .quote small{color:var(--muted)}
    .feedback-box{padding:30px;border-radius:var(--radius);background:#eafafa;border:1px solid #c8eeee}
    .feedback-box p{color:#557477;font-size:14px}
    .faq-wrap{max-width:860px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:0;background:transparent;padding:20px 0;color:var(--ink);font-weight:800;font-size:16px}
    .faq-q span:last-child{color:var(--brand);font-size:23px;transition:transform .2s}
    .faq-q[aria-expanded="true"] span:last-child{transform:rotate(45deg)}
    .faq-a{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
    .faq-a.open{display:block}
    .cta{padding:58px 0;background:#eaf3ff}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta-box p{color:var(--muted);max-width:600px;margin:0}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{background:#fff;border-top:1px solid var(--line);padding:45px 0 20px}
    .footer-top{display:flex;justify-content:space-between;gap:45px}
    .footer-brand{max-width:390px}
    .footer-brand p{color:var(--muted);font-size:13px;margin-top:16px}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px 22px;align-content:flex-start;max-width:520px;font-size:13px;color:#60718b}
    .footer-links a:hover{color:var(--brand)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:30px;padding-top:17px;color:#7a899d;font-size:12px}
    @media(max-width:900px){
      .nav{gap:15px}.nav-links{gap:0}.nav-link{padding-inline:9px}.nav-ctas{margin-left:0}
      .hero-row,.cta-box{align-items:flex-start;flex-direction:column}
      .hero-side{width:100%;display:flex;justify-content:space-between;align-items:center}
      .collection-intro,.quote-layout{grid-template-columns:1fr}
      .group-card.wide{grid-template-columns:1fr}
    }
    @media(max-width:720px){
      .container{width:min(calc(100% - 36px),var(--max))}
      .topbar-inner{align-items:flex-start;padding:8px 0;flex-direction:column;gap:3px}
      .top-actions{flex-wrap:wrap;margin-left:-8px}
      .site-header{position:relative}.nav{min-height:70px;flex-wrap:wrap}
      .menu-toggle{display:block;margin-left:auto}
      .nav-links,.nav-ctas{display:none;width:100%;margin:0}
      .nav.open .nav-links,.nav.open .nav-ctas{display:flex}
      .nav.open .nav-links{order:4;flex-direction:column;align-items:stretch;padding:8px 0}
      .nav.open .nav-link{padding:12px}
      .nav.open .nav-ctas{order:5;padding-bottom:13px}
      .nav-ctas{gap:8px}.nav-ctas .btn{flex:1}
      .page-hero{padding:38px 0 32px}
      .section{padding:54px 0}
      h1{font-size:36px}
      .small-card{grid-template-columns:92px 1fr}
      .small-body{padding:18px}
      .stat-band{grid-template-columns:1fr 1fr}
      .group-grid{grid-template-columns:1fr}.group-card.wide{grid-column:auto}
      .footer-top,.footer-bottom{flex-direction:column;gap:16px}
    }
    @media(max-width:480px){
      .hero-side{display:block}.hero-side strong{margin-bottom:3px}
      .filter-strip{align-items:stretch;flex-direction:column}
      .filter-strip select{width:100%}
      .stat-band{grid-template-columns:1fr}
      .cta-actions,.cta-actions .btn{width:100%}
    }