/* roulang page: index */
:root{--bg:#F3F6F8;--card:#FFFFFF;--text:#1C2B33;--muted:#5C6E78;--primary:#2A6F8F;--deep:#1D5168;--accent:#3E8F84;--line:#E2E8EC;--warm:#C47A5A;--shadow:0 10px 28px rgba(28,70,90,.08);--shadow-hover:0 16px 36px rgba(28,70,90,.12);--radius:16px;--site:1120px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{margin:0;background:var(--bg);color:var(--text);font-family:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;letter-spacing:0}
body h1,body h2,body h3,body p{letter-spacing:0}
img{max-width:100%;display:block}
button,input,textarea{font-family:inherit;font-size:16px}
a:any-link{color:var(--deep);text-decoration-thickness:1px;text-underline-offset:3px}
a:any-link:hover{color:var(--primary)}
.skip{position:absolute;left:12px;top:-40px;background:#fff;padding:8px 12px;z-index:80}
.skip:focus{top:8px}
.container{width:min(var(--site),calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .24s ease}
.site-header.is-compact{box-shadow:var(--shadow)}
.brand-row{display:flex;align-items:center;gap:12px;min-height:72px;max-height:120px;overflow:hidden;transition:max-height .24s ease,opacity .24s ease,padding .24s ease,border-color .24s ease}
.site-header.is-compact .brand-row{max-height:0;min-height:0;opacity:0;padding-top:0;padding-bottom:0;pointer-events:none}
.logo,.mini-logo{font-weight:700;color:var(--deep);text-decoration:none;line-height:1.35}
.logo{font-size:18px;white-space:nowrap}
.mini-logo{display:none;font-size:15px;margin-right:8px;white-space:nowrap}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:999px;border:1px solid transparent;font-size:13px;font-weight:700;line-height:1}
.badge-warm{background:rgba(196,122,90,.12);color:var(--warm);border-color:rgba(196,122,90,.28)}
.badge-primary{background:rgba(42,111,143,.1);color:var(--deep);border-color:rgba(42,111,143,.18)}
.badge-accent{background:rgba(62,143,132,.12);color:#24685f;border-color:rgba(62,143,132,.28)}
.search-look{flex:1;display:flex;align-items:center;gap:8px;min-width:0;height:42px;padding:0 14px;background:var(--bg);border:1px solid var(--line);border-radius:999px}
.search-look span{color:var(--primary);font-weight:700}
.search-look input{width:100%;border:0;outline:0;background:transparent;color:var(--text);min-width:0}
.search-look input:focus{outline:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle .bars,.nav-toggle .bars::before,.nav-toggle .bars::after{display:block;width:16px;height:2px;background:var(--deep);position:relative;border-radius:2px}
.nav-toggle .bars::before,.nav-toggle .bars::after{content:"";position:absolute;left:0}
.nav-toggle .bars::before{top:-5px}
.nav-toggle .bars::after{top:5px}
.channel-row{display:flex;align-items:center;gap:12px;min-height:52px}
.channels{display:flex;align-items:center;gap:6px;flex-wrap:wrap;flex:1}
.channels a{text-decoration:none;color:var(--muted);font-size:14px;padding:6px 10px;border-radius:999px;border:1px solid transparent}
.channels a:hover,.channels a:focus-visible{color:var(--deep);background:rgba(42,111,143,.08)}
.channels a.is-active{color:var(--deep);background:rgba(42,111,143,.12);font-weight:700}
.compact-cta{display:none}
.site-header.is-compact .mini-logo,.site-header.is-compact .compact-cta{display:inline-flex}
.site-header.is-compact .channel-extra{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;padding:0 18px;border-radius:999px;border:1px solid transparent;text-decoration:none;font-weight:700;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:#fff;color:var(--deep);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--deep);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{min-height:36px;padding:0 14px;font-size:14px}
.btn:focus-visible,.nav-toggle:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,.channels a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
main{display:block}
.band{padding:96px 0}
.band-white{background:#fff}
.band-mist{background:var(--bg)}
.band h1{margin:0 0 16px;font-size:clamp(32px,4vw,46px);line-height:1.25;font-weight:700;color:var(--text)}
.band h2{margin:0 0 14px;font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700}
.band h3{margin:0 0 8px;font-size:18px;line-height:1.45;font-weight:700}
.lead{margin:0 0 28px;color:var(--muted);max-width:760px}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
.kicker{display:flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--muted);font-size:13px}
.points{margin:0 0 22px;padding:0;list-style:none}
.points li{position:relative;padding-left:22px;margin:8px 0;color:var(--text)}
.points li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:99px;background:var(--accent)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.trust{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.trust li{font-size:13px;color:var(--deep);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 10px}
.player{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.player-hero{min-height:320px}
.cover{height:210px;background:#E7F1F4;position:relative}
.block{position:absolute;border-radius:12px}
.b1{width:46%;height:64%;left:8%;top:14%;background:var(--primary)}
.b2{width:28%;height:36%;right:10%;top:18%;background:var(--accent)}
.b3{width:18%;height:16%;right:14%;bottom:18%;background:var(--warm)}
.play{position:absolute;left:50%;top:96px;transform:translateX(-50%);width:64px;height:64px;border:0;border-radius:999px;background:var(--deep);display:grid;place-items:center;box-shadow:var(--shadow)}
.play i{width:0;height:0;border-left:16px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:4px}
.subbar{margin:12px 14px 0;background:#243942;color:#fff;border-radius:10px;padding:8px 12px;font-size:14px}
.progress{margin:12px 14px;height:6px;background:#E4EEF2;border-radius:999px;overflow:hidden}
.progress i{display:block;width:36%;height:100%;background:var(--accent)}
.p-meta{display:flex;justify-content:space-between;gap:8px;align-items:center;padding:0 14px 14px;color:var(--muted);font-size:13px}
.p-badges{display:flex;gap:6px}
.matrix{display:grid;gap:16px}
.cell{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;transition:box-shadow .2s ease}
.cell:hover,.tile:hover,.info-card:hover,.entry:hover,.partner:hover{box-shadow:var(--shadow-hover)}
.cell p,.info-card p,.scene p,.tile p,.partner p{margin:0;color:var(--muted);font-size:15px}
.cell-search{background:linear-gradient(#fff,#fff) padding-box;min-height:100%}
.cell .idx{font-size:13px;color:var(--primary);font-weight:700;margin-bottom:8px}
.metrics{display:grid;gap:12px}
.metric{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 16px;box-shadow:var(--shadow)}
.metric b{display:block;font-size:32px;line-height:1.1;color:var(--deep);font-weight:700}
.metric span{display:block;margin-top:6px;color:var(--text);font-weight:700}
.metric small{display:block;color:var(--muted);font-size:13px}
.flow{display:grid;gap:14px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);position:relative}
.num{width:36px;height:36px;border-radius:999px;display:inline-grid;place-items:center;background:var(--primary);color:#fff;font-weight:700;margin-bottom:10px}
.scenes{display:grid;gap:16px;align-items:start}
.scene{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.scene-short{min-height:220px}
.scene-night{min-height:300px}
.scene-desk{min-height:250px}
.tagline{font-size:13px;color:var(--accent);font-weight:700;margin-bottom:8px}
.mosaic{display:grid;gap:16px}
.tile{display:flex;flex-direction:column;justify-content:space-between;min-height:150px;padding:18px;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);text-decoration:none;color:var(--text)}
.tile strong{font-size:18px;line-height:1.45}
.tile span{font-size:13px;color:var(--muted)}
.tile-a{background:#E7F2F6}
.tile-b{background:#fff}
.tile-c{background:#F4FAF8}
.tile-d{background:#fff}
.tile-e{background:#FBF7F4}
.tile-f{background:#fff}
.news{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden}
.news li{list-style:none}
.news-list{margin:0;padding:0}
.news a.row{display:grid;grid-template-columns:128px 1fr;gap:12px;padding:16px 18px;border-top:1px solid var(--line);text-decoration:none;color:var(--text)}
.news li:first-child a.row{border-top:0}
.news a.row:hover{background:#F7FBFC}
.news time{color:var(--primary);font-size:13px;font-weight:700}
.news p{margin:4px 0 0;color:var(--muted);font-size:14px}
.more-wrap{padding:14px 18px;border-top:1px solid var(--line);background:#FBFCFD}
.entries{display:grid;gap:16px}
.entry{display:block;padding:28px;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);text-decoration:none;color:var(--text);min-height:180px}
.entry-wide{background:#F4F9FB}
.entry em{font-style:normal;font-size:13px;color:var(--primary);font-weight:700}
.split{display:grid;gap:28px;align-items:center}
.legend{display:grid;gap:10px}
.legend div{display:grid;grid-template-columns:72px 1fr;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
.swatch{height:14px;border-radius:999px}
.s1{background:var(--primary);width:70%}
.s2{background:var(--accent);width:48%}
.s3{background:var(--deep);width:86%}
.s4{background:var(--warm);width:34%}
.devices{display:grid;gap:16px;align-items:end}
.device{background:transparent}
.device .cap{font-size:13px;color:var(--muted);margin-bottom:8px;font-weight:700}
.player-phone{max-width:240px}
.player-pad{max-width:360px}
.player-desk{max-width:100%}
.player-phone .cover{height:120px}
.player-pad .cover{height:140px}
.player-desk .cover{height:150px}
.timeband{display:grid;gap:16px;position:relative}
.tcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);position:relative}
.dot{width:12px;height:12px;border-radius:99px;background:var(--accent);border:2px solid #fff;box-shadow:0 0 0 1px var(--line);margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 16px;box-shadow:var(--shadow);min-width:180px}
.chip b{display:block;color:var(--deep)}
.chip span{font-size:13px;color:var(--muted)}
.partners{display:grid;gap:16px}
.partner{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(42,111,143,.1);color:var(--deep);font-weight:700;margin-bottom:10px}
.faq{display:grid;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 16px;box-shadow:var(--shadow)}
.faq-item[open]{border-color:rgba(42,111,143,.45)}
.faq-item summary{cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:700;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--primary);font-size:20px;font-weight:700}
.faq-item[open] summary::after{content:"–"}
.faq-item p{margin:0 0 16px;color:var(--muted)}
.assure{display:grid;gap:10px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:14px 18px;box-shadow:var(--shadow)}
.assure div{min-width:0}
.assure strong{display:block;font-size:14px}
.assure span{display:block;color:var(--muted);font-size:13px}
.contact-grid{display:grid;gap:24px}
.form-grid{display:grid;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
label{font-size:13px;font-weight:700;color:var(--deep)}
input,textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:#fff;color:var(--text)}
textarea{min-height:110px;resize:vertical}
.hint{margin:0;color:var(--muted);font-size:13px}
.site-footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 28px}
.foot-grid{display:grid;gap:22px}
.site-footer h2{font-size:16px;margin:0 0 10px}
.site-footer p,.site-footer li{color:var(--muted);font-size:14px}
.site-footer ul{margin:0;padding:0;list-style:none}
.site-footer li{margin:6px 0}
.fine{margin:22px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media (min-width:768px){
.metrics,.flow,.scenes,.partners,.timeband{grid-template-columns:1fr 1fr}
.matrix{grid-template-columns:1.15fr .85fr}
.cell-search{grid-row:span 2}
.entries{grid-template-columns:1.4fr .8fr}
.devices{grid-template-columns:.8fr 1fr 1.25fr}
.foot-grid{grid-template-columns:1.2fr 1fr 1fr 1fr}
.scene-night{margin-top:28px}
}
@media (min-width:1024px){
.hero-grid{grid-template-columns:1.15fr .85fr;gap:48px}
.split,.contact-grid{grid-template-columns:1.05fr .95fr}
.flow,.metrics,.timeband{grid-template-columns:repeat(4,1fr)}
.timeband{grid-template-columns:repeat(3,1fr)}
.scenes{grid-template-columns:1fr 1.08fr .92fr}
.scene-short{min-height:230px}
.scene-night{min-height:340px;margin-top:42px}
.scene-desk{min-height:280px;margin-top:16px}
.mosaic{grid-template-columns:1.35fr .85fr .95fr;grid-template-rows:168px 150px 158px}
.tile-a{grid-column:1;grid-row:1 / span 2}
.tile-b{grid-column:2 / span 2;grid-row:1}
.tile-c{grid-column:2;grid-row:2 / span 2}
.tile-d{grid-column:3;grid-row:2}
.tile-e{grid-column:1;grid-row:3}
.tile-f{grid-column:3;grid-row:3}
.partners{grid-template-columns:1.2fr .9fr 1fr}
.assure{grid-template-columns:1.2fr 1fr 1fr 1fr;align-items:center;border-radius:16px}
.timeband::before{content:"";position:absolute;left:24px;right:24px;top:24px;height:2px;background:var(--line);z-index:0}
.tcard{z-index:1}
}
@media (max-width:767px){
.band{padding:64px 0}
.container{width:min(var(--site),calc(100% - 32px))}
.nav-toggle{display:inline-flex}
.search-look,.brand-cta{display:none}
.logo{font-size:14px}
.channel-row{display:none;flex-direction:column;align-items:stretch;padding-bottom:14px}
.channel-row.is-open{display:flex}
.channels{flex-direction:column;align-items:stretch}
.channels a{border:1px solid var(--line);background:#fff}
.compact-cta{display:inline-flex;margin-top:8px}
.mini-logo{display:none}
.site-header.is-compact .brand-row{max-height:120px;min-height:64px;opacity:1;pointer-events:auto}
.site-header.is-compact .channel-extra{display:block}
.news a.row{grid-template-columns:1fr}
.assure{border-radius:16px}
.player-phone,.player-pad{max-width:none}
}
@media (max-width:639px){
.hero-actions .btn,.contact-actions .btn{width:100%}
.logo{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{transition:none !important}
}

/* roulang page: category2 */
:root{--bg:#F3F6F8;--card:#FFFFFF;--text:#1C2B33;--muted:#5C6E78;--primary:#2A6F8F;--deep:#1D5168;--accent:#3E8F84;--line:#E2E8EC;--warm:#C47A5A;--shadow:0 10px 28px rgba(28,70,90,.08);--shadow-hover:0 16px 36px rgba(28,70,90,.12);--radius:16px;--site:1120px}
html{scroll-behavior:smooth}
html body{margin:0;background:var(--bg);color:var(--text);font-family:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;letter-spacing:0}
body h1,body h2,body h3,body p{letter-spacing:0}
img{max-width:100%;display:block}
button,input,textarea{font-family:inherit;font-size:16px}
a:any-link{color:var(--deep);text-decoration-thickness:1px;text-underline-offset:3px}
a:any-link:hover{color:var(--primary)}
.container{width:min(var(--site),calc(100% - 40px));margin:0 auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .24s ease}
.site-header.is-compact{box-shadow:var(--shadow)}
.brand-row{display:flex;align-items:center;gap:12px;min-height:72px;max-height:120px;overflow:hidden;transition:max-height .24s ease,opacity .24s ease,padding .24s ease}
.site-header.is-compact .brand-row{max-height:0;min-height:0;opacity:0;padding-top:0;padding-bottom:0;pointer-events:none}
.logo,.mini-logo{font-weight:700;color:var(--deep);text-decoration:none;line-height:1.35}
.logo{font-size:18px;white-space:nowrap}
.mini-logo{display:none;font-size:15px;margin-right:8px;white-space:nowrap}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:999px;border:1px solid transparent;font-size:13px;font-weight:700;line-height:1}
.badge-warm{background:rgba(196,122,90,.12);color:var(--warm);border-color:rgba(196,122,90,.28)}
.badge-primary{background:rgba(42,111,143,.1);color:var(--deep);border-color:rgba(42,111,143,.18)}
.badge-accent{background:rgba(62,143,132,.12);color:#24685f;border-color:rgba(62,143,132,.28)}
.search-look{flex:1;display:flex;align-items:center;gap:8px;min-width:0;height:42px;padding:0 14px;background:var(--bg);border:1px solid var(--line);border-radius:999px}
.search-look span{color:var(--primary);font-weight:700}
.search-look input{width:100%;border:0;outline:0;background:transparent;color:var(--text);min-width:0}
.nav-toggle{display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle .bars,.nav-toggle .bars::before,.nav-toggle .bars::after{display:block;width:16px;height:2px;background:var(--deep);position:relative;border-radius:2px}
.nav-toggle .bars::before,.nav-toggle .bars::after{content:"";position:absolute;left:0}
.nav-toggle .bars::before{top:-5px}
.nav-toggle .bars::after{top:5px}
.channel-row{display:flex;align-items:center;gap:12px;min-height:52px}
.channels{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.channels a{text-decoration:none;color:var(--muted);font-size:14px;padding:6px 10px;border-radius:999px;border:1px solid transparent}
.channels a:hover,.channels a:focus-visible{color:var(--deep);background:rgba(42,111,143,.08)}
.channels a.is-active{color:var(--deep);background:rgba(42,111,143,.12);font-weight:700}
.compact-cta{display:none}
.site-header.is-compact .mini-logo,.site-header.is-compact .compact-cta{display:inline-flex}
.site-header.is-compact .channel-extra{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;padding:0 18px;border-radius:999px;border:1px solid transparent;text-decoration:none;font-weight:700;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:#fff;color:var(--deep);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--deep);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{min-height:36px;padding:0 14px;font-size:14px}
.btn:focus-visible,.nav-toggle:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,.channels a:focus-visible,.switch-pill:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
main{display:block}
.band{padding:96px 0}
.band-alt{background:#fff}
.band-plain{background:var(--bg)}
.kicker{margin:0 0 8px;font-size:13px;font-weight:700;color:var(--accent)}
.section-title{margin:0 0 12px;font-size:30px;line-height:1.35;font-weight:700;color:var(--text)}
.lead{margin:0;color:var(--muted);max-width:680px}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 14px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--deep);text-decoration:none}
.crumb a:hover{text-decoration:underline;text-underline-offset:3px}
.banner{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.banner h1{margin:0 0 14px;font-size:36px;line-height:1.3;font-weight:700}
.banner-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.player{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.screen{position:relative;min-height:210px;background:linear-gradient(160deg,#E7F2F6 0%,#F7FBFC 48%,#E5F3F0 100%);padding:18px}
.blocks{display:grid;grid-template-columns:1.4fr .8fr;gap:10px;height:120px}
.blocks span{display:block;border-radius:12px;background:rgba(42,111,143,.16)}
.blocks span:last-child{background:rgba(62,143,132,.2)}
.sub-bar{position:absolute;left:18px;right:18px;bottom:16px;min-height:36px;display:flex;align-items:center;justify-content:center;padding:0 12px;border-radius:10px;background:rgba(255,255,255,.92);border:1px solid rgba(42,111,143,.18);color:var(--deep);font-size:13px;font-weight:700}
.p-controls{display:flex;align-items:center;gap:10px;padding:12px 14px 14px}
.play-dot{width:28px;height:28px;border-radius:999px;background:var(--primary);flex:none;position:relative}
.play-dot::after{content:"";position:absolute;left:11px;top:8px;border-style:solid;border-width:6px 0 6px 9px;border-color:transparent transparent transparent #fff}
.progress{flex:1;height:6px;border-radius:999px;background:#E6EEF2;overflow:hidden}
.progress i{display:block;width:46%;height:100%;background:var(--accent)}
.switch-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.switch-pill{min-height:32px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;font-weight:700;cursor:default}
.switch-pill.is-on{background:rgba(42,111,143,.12);color:var(--deep);border-color:rgba(42,111,143,.28)}
.def-grid{display:grid;gap:16px;margin:28px 0 0}
.q-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;transition:box-shadow .2s ease}
.q-card:hover{box-shadow:var(--shadow-hover)}
.q-card dt{font-size:20px;font-weight:700;color:var(--deep);margin:0 0 8px}
.q-card dd{margin:0;color:var(--muted)}
.q-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.safe-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:center;margin-top:8px}
.safe-copy p{margin:0 0 12px;color:var(--muted)}
.size-list{display:grid;gap:10px;margin-top:16px}
.size-list div{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff}
.size-list b{color:var(--deep)}
.size-list span{color:var(--muted);font-size:14px}
.safe-frame{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.safe-screen{position:relative;height:280px;border-radius:12px;background:#F4F8FA;border:1px dashed rgba(42,111,143,.35)}
.safe-inner{position:absolute;inset:28px 36px 64px;border:1px solid rgba(62,143,132,.55);border-radius:10px}
.safe-caption{position:absolute;left:36px;right:36px;bottom:72px;height:34px;border-radius:8px;background:rgba(42,111,143,.16)}
.safe-progress{position:absolute;left:24px;right:24px;bottom:22px;height:8px;border-radius:999px;background:#E2E8EC}
.safe-label{margin-top:10px;font-size:13px;color:var(--muted)}
.device-collage{display:grid;grid-template-columns:.78fr .92fr 1.2fr;gap:16px;align-items:start;margin-top:28px}
.dev{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;transition:box-shadow .2s ease}
.dev:hover{box-shadow:var(--shadow-hover)}
.dev h3{margin:12px 0 6px;font-size:18px}
.dev p{margin:0;color:var(--muted);font-size:15px}
.dev-phone{margin-top:48px}
.dev-pad{margin-top:24px}
.dev-desk{margin-top:0}
.mini-screen{border-radius:12px;background:linear-gradient(180deg,#E7F2F6,#F8FBFC);border:1px solid var(--line);position:relative}
.dev-phone .mini-screen{height:150px}
.dev-pad .mini-screen{height:190px}
.dev-desk .mini-screen{height:250px}
.mini-screen em{position:absolute;left:12px;right:12px;bottom:12px;height:22px;border-radius:7px;background:rgba(255,255,255,.9);font-style:normal;font-size:12px;color:var(--deep);display:flex;align-items:center;justify-content:center;font-weight:700}
.delay-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;margin-top:28px}
.delay-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.delay-main p{margin:0 0 12px;color:var(--muted)}
.delay-main p:last-child{margin:0}
.delay-rail{display:grid;gap:12px}
.rail-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 16px 14px;box-shadow:var(--shadow)}
.rail-item:nth-child(2){margin-left:18px}
.rail-item:nth-child(3){margin-left:36px}
.rail-item b{display:block;color:var(--deep);margin-bottom:4px}
.rail-item span{color:var(--muted);font-size:14px}
.news{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-top:22px;overflow:hidden}
.news a.row{display:grid;grid-template-columns:128px 1fr auto;gap:12px;padding:16px 18px;border-top:1px solid var(--line);text-decoration:none;color:var(--text);align-items:center}
.news li:first-child a.row{border-top:0}
.news a.row:hover{background:#F7FBFC}
.news time{color:var(--muted);font-size:13px}
.news strong{font-weight:700}
.news em{font-style:normal;font-size:13px;color:var(--primary);font-weight:700}
.news{list-style:none;padding:0}
.advice{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;padding:0;list-style:none}
.advice li{background:#fff;border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);padding:12px 16px;min-width:180px}
.advice b{display:block;color:var(--deep);font-size:14px}
.advice span{font-size:13px;color:var(--muted)}
.closer{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.closer p{margin:8px 0 0;color:var(--muted)}
.closer-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.site-footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.site-footer h2{margin:0 0 10px;font-size:16px;font-weight:700}
.site-footer p{color:var(--muted);margin:10px 0 0}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:6px 0}
.site-footer a{text-decoration:none}
.fine{font-size:13px;color:var(--muted);margin:24px 0 0}
@media (max-width:1279px){
.banner h1{font-size:32px}
.section-title{font-size:28px}
}
@media (max-width:1023px){
.band{padding:72px 0}
.banner,.safe-grid,.delay-layout,.closer,.device-collage{grid-template-columns:1fr}
.dev-phone,.dev-pad,.dev-desk{margin-top:0}
.rail-item:nth-child(2),.rail-item:nth-child(3){margin-left:0}
.foot-grid{grid-template-columns:1fr 1fr}
.closer-actions{justify-content:flex-start}
}
@media (max-width:767px){
.band{padding:56px 0}
.nav-toggle{display:inline-flex}
.brand-cta,.search-look{display:none}
.site-header.is-compact .brand-row{max-height:120px;min-height:64px;opacity:1;pointer-events:auto}
.site-header.is-compact .mini-logo,.site-header.is-compact .compact-cta{display:none}
.channel-row{display:none;padding-bottom:12px}
.channel-row.is-open{display:flex;flex-direction:column;align-items:stretch}
.channels{flex-direction:column;align-items:stretch}
.channels a{border-radius:12px}
.logo{white-space:normal;font-size:15px}
.banner h1{font-size:28px}
.section-title{font-size:24px}
.news a.row{grid-template-columns:1fr;gap:4px}
.foot-grid{grid-template-columns:1fr}
.container{width:min(var(--site),calc(100% - 28px))}
}
@media (max-width:639px){
.blocks{height:96px}
.safe-screen{height:220px}
.advice li{min-width:0;width:100%}
}

/* roulang page: category1 */
:root{--bg:#F3F6F8;--card:#FFFFFF;--text:#1C2B33;--muted:#5C6E78;--primary:#2A6F8F;--deep:#1D5168;--accent:#3E8F84;--line:#E2E8EC;--warm:#C47A5A;--shadow:0 10px 28px rgba(28,70,90,.08);--shadow-hover:0 16px 36px rgba(28,70,90,.12);--radius:16px;--site:1120px}
/* roulang page: category1 */
html{scroll-behavior:smooth}
*,*::before,*::after{box-sizing:border-box}
html body{margin:0;background:var(--bg);color:var(--text);font-family:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;letter-spacing:0}
body h1,body h2,body h3,body p{letter-spacing:0}
img{max-width:100%;display:block}
button,input,textarea{font-family:inherit;font-size:16px}
a:any-link{color:var(--deep);text-decoration-thickness:1px;text-underline-offset:3px}
a:any-link:hover{color:var(--primary)}
.container{width:min(var(--site),calc(100% - 40px));margin:0 auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .24s ease}
.site-header.is-compact{box-shadow:var(--shadow)}
.brand-row{display:flex;align-items:center;gap:12px;min-height:72px;max-height:120px;overflow:hidden;transition:max-height .24s ease,opacity .24s ease,min-height .24s ease,padding .24s ease}
.site-header.is-compact .brand-row{max-height:0;min-height:0;opacity:0;padding-top:0;padding-bottom:0;pointer-events:none}
.logo,.mini-logo{font-weight:700;color:var(--deep);text-decoration:none;line-height:1.35}
.logo{font-size:18px;white-space:nowrap}
.mini-logo{display:none;font-size:15px;margin-right:8px;white-space:nowrap}
a.logo:hover,a.mini-logo:hover{color:var(--primary);text-decoration:none}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:999px;border:1px solid transparent;font-size:13px;font-weight:700;line-height:1;white-space:nowrap}
.badge-warm{background:rgba(196,122,90,.12);color:var(--warm);border-color:rgba(196,122,90,.28)}
.badge-primary{background:rgba(42,111,143,.1);color:var(--deep);border-color:rgba(42,111,143,.18)}
.badge-accent{background:rgba(62,143,132,.12);color:#24685f;border-color:rgba(62,143,132,.28)}
.search-look{flex:1;display:flex;align-items:center;gap:8px;min-width:0;height:42px;padding:0 14px;background:var(--bg);border:1px solid var(--line);border-radius:999px}
.search-look span{color:var(--primary);font-weight:700}
.search-look input{width:100%;border:0;outline:0;background:transparent;color:var(--text);min-width:0}
.search-look input:focus{outline:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer;flex:0 0 auto}
.nav-toggle .bars,.nav-toggle .bars::before,.nav-toggle .bars::after{display:block;width:16px;height:2px;background:var(--deep);position:relative;border-radius:2px}
.nav-toggle .bars::before,.nav-toggle .bars::after{content:"";position:absolute;left:0}
.nav-toggle .bars::before{top:-5px}
.nav-toggle .bars::after{top:5px}
.channel-row{display:flex;align-items:center;gap:12px;min-height:52px}
.channels{display:flex;align-items:center;gap:4px;flex-wrap:wrap;flex:1}
.channels a{text-decoration:none;color:var(--muted);font-size:14px;padding:6px 10px;border-radius:999px;border:1px solid transparent}
.channels a:hover,.channels a:focus-visible{color:var(--deep);background:rgba(42,111,143,.08)}
.channels a.is-active{color:var(--deep);background:rgba(42,111,143,.12);font-weight:700}
.compact-cta{display:none}
.site-header.is-compact .mini-logo,.site-header.is-compact .compact-cta{display:inline-flex}
.site-header.is-compact .channel-extra{display:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;padding:0 18px;border-radius:999px;border:1px solid transparent;text-decoration:none;font-weight:700;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease}
a.btn{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
a.btn-primary,a.btn-primary:hover{color:#fff;text-decoration:none}
.btn-primary:hover{background:var(--deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:#fff;color:var(--deep);border-color:var(--line)}
a.btn-ghost,a.btn-ghost:hover{color:var(--deep);text-decoration:none}
.btn-ghost:hover{border-color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{min-height:36px;padding:0 14px;font-size:14px}
.btn:focus-visible,.nav-toggle:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,.channels a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
main{display:block}
h1{font-size:34px;line-height:1.35;font-weight:700;margin:0 0 12px;color:var(--text)}
h2{font-size:28px;line-height:1.4;font-weight:700;margin:0 0 16px;color:var(--text)}
h3{font-size:18px;line-height:1.5;font-weight:700;margin:0 0 8px;color:var(--text)}
p{margin:0 0 12px}
.lead{margin:0 0 18px;color:var(--muted);max-width:760px}
.band{padding:96px 0}
.band-tight{padding:40px 0 20px}
.band-alt{background:#fff}
.band-slim{padding:28px 0 88px}
.page-head{max-width:860px}
.crumb{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:0 0 14px;color:var(--muted);font-size:13px;list-style:none;padding:0}
.crumb a{color:var(--deep)}
.crumb li:not(:last-child)::after{content:"/";margin-left:6px;color:#9AADB6}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:8px 0 16px}
.count-pill{display:inline-flex;align-items:center;min-height:32px;padding:0 12px;border-radius:999px;background:rgba(42,111,143,.1);color:var(--deep);font-weight:700;font-size:13px}
.filter-sum{color:var(--muted);font-size:14px}
.check-line{display:flex;flex-wrap:wrap;gap:8px 16px;margin:0;padding:14px 0 0;list-style:none;border-top:1px solid var(--line)}
.check-line li{display:flex;align-items:center;gap:8px;color:var(--text);font-size:14px}
.check-line i{width:18px;height:18px;border-radius:999px;background:rgba(62,143,132,.14);color:#24685f;display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-size:12px;font-weight:700}
.section-kicker{margin:0 0 8px;color:var(--accent);font-size:13px;font-weight:700}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 16px;box-shadow:var(--shadow);min-width:180px}
.band-alt .chip{background:var(--bg)}
.chip b{display:block;color:var(--deep);font-size:15px}
.chip span{font-size:13px;color:var(--muted)}
.chip-wide{min-width:240px;border-radius:16px}
.list-split{display:grid;gap:20px;align-items:start}
.feature-card,.side-list,.tcard,.legend-main,.legend-side article,.check-board,.more-bar{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.feature-card{padding:16px;transition:box-shadow .2s ease}
.feature-card:hover,.side-list:hover,.legend-main:hover,.check-board:hover{box-shadow:var(--shadow-hover)}
.cover{margin:0 0 14px;border-radius:12px;overflow:hidden;background:#E7F2F6;min-height:250px;position:relative;display:flex;flex-direction:column;justify-content:flex-end}
.cover-art{position:absolute;inset:0}
.blob{position:absolute;border-radius:28px}
.blob-a{width:58%;height:70%;left:8%;top:12%;background:#2A6F8F;opacity:.88}
.blob-b{width:42%;height:46%;right:8%;top:18%;background:#3E8F84;opacity:.75}
.blob-c{width:28%;height:22%;left:22%;bottom:28%;background:rgba(196,122,90,.55)}
.play-btn{position:absolute;left:50%;top:42%;transform:translate(-50%,-50%);width:64px;height:64px;border-radius:999px;background:#fff;box-shadow:var(--shadow)}
.play-btn::before{content:"";position:absolute;left:26px;top:20px;border-style:solid;border-width:12px 0 12px 18px;border-color:transparent transparent transparent var(--deep)}
.sub-bar{position:relative;z-index:1;margin:0 14px 12px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:999px;min-height:36px;display:flex;align-items:center;padding:0 14px;font-size:13px;color:var(--deep);font-weight:700}
.progress{position:relative;z-index:1;height:6px;margin:0 14px 14px;background:rgba(255,255,255,.55);border-radius:999px;overflow:hidden}
.progress i{display:block;width:62%;height:100%;background:var(--primary)}
.p-meta{display:flex;justify-content:space-between;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:8px}
.p-badges,.badge-row{display:flex;flex-wrap:wrap;gap:6px}
.feature-card p,.side-row p,.legend-main p,.legend-side p,.check-board p,.article-block p{color:var(--muted);font-size:15px}
.card-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.side-list{padding:6px}
.side-row{display:grid;grid-template-columns:72px minmax(0,1fr);gap:10px;padding:12px;border-top:1px solid var(--line);text-decoration:none;color:var(--text)}
.side-list .side-row:first-child{border-top:0}
.side-row:hover{background:#F7FBFC}
.side-row time{color:var(--primary);font-size:13px;font-weight:700}
.side-row strong{display:block;font-size:15px;line-height:1.45}
.side-row span{display:block;color:var(--muted);font-size:13px}
.legend-grid{display:grid;gap:16px}
.legend-main{padding:24px}
.legend-main .scale{display:flex;gap:8px;margin-top:16px}
.scale i{display:block;height:10px;border-radius:999px;background:var(--primary)}
.scale i:nth-child(1){width:28%;opacity:.35}
.scale i:nth-child(2){width:46%;opacity:.65}
.scale i:nth-child(3){width:26%;opacity:1;background:var(--accent)}
.legend-side{display:grid;gap:12px}
.legend-side article{padding:16px 18px}
.legend-side b{display:block;color:var(--deep);margin-bottom:4px}
.timeline{position:relative;margin:0;padding:0;list-style:none;display:grid;gap:0}
.timeline::before{content:"";position:absolute;left:15px;top:8px;bottom:8px;width:2px;background:var(--line)}
.timeline li{position:relative;padding:0 0 22px 48px}
.timeline li:last-child{padding-bottom:0}
.dot{position:absolute;left:8px;top:6px;width:16px;height:16px;border-radius:999px;background:#fff;border:3px solid var(--primary);box-shadow:0 0 0 4px rgba(42,111,143,.1)}
.time-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow)}
.time-card time{display:block;color:var(--warm);font-size:13px;font-weight:700}
.time-card strong{display:block;margin:2px 0}
.time-card p{margin:0;color:var(--muted);font-size:14px}
.check-board{padding:8px 18px}
.check-row{display:grid;grid-template-columns:148px minmax(0,1fr) auto;gap:12px;align-items:center;padding:16px 0;border-top:1px solid var(--line)}
.check-board .check-row:first-child{border-top:0}
.check-row b{color:var(--deep)}
.check-row span{color:var(--muted);font-size:14px}
.mark{font-size:13px;font-weight:700;color:#24685f;background:rgba(62,143,132,.12);border-radius:999px;padding:4px 10px}
.news-list{margin:0;padding:0;list-style:none;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.news a.row{display:grid;grid-template-columns:128px minmax(0,1fr);gap:12px;padding:16px 18px;border-top:1px solid var(--line);text-decoration:none;color:var(--text)}
.news li:first-child a.row{border-top:0}
.news a.row:hover{background:#F7FBFC}
.news time{color:var(--primary);font-size:13px;font-weight:700}
.news strong{display:block}
.news em{display:block;margin-top:4px;color:var(--muted);font-style:normal;font-size:14px}
.article-block{padding:4px 0 0}
.article-block article{padding:18px 0;border-top:1px solid var(--line)}
.article-block h3{font-size:18px}
.more-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px}
.more-bar p{margin:0;color:var(--muted);font-size:14px}
.site-footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr .8fr;gap:28px}
.site-footer h2{font-size:16px;margin:0 0 12px}
.site-footer ul{margin:0;padding:0;list-style:none}
.site-footer li{margin:6px 0}
.site-footer p{color:var(--muted);margin:12px 0 0;font-size:14px}
.fine{width:min(var(--site),calc(100% - 40px));margin:28px auto 0;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
@media (min-width:768px){
.legend-side{grid-template-columns:1fr 1fr}
}
@media (min-width:1024px){
.list-split{grid-template-columns:minmax(0,1.35fr) minmax(280px,.78fr)}
.legend-grid{grid-template-columns:minmax(0,1.25fr) minmax(280px,.8fr);align-items:stretch}
.legend-side{grid-template-columns:1fr}
.timeline{grid-template-columns:1fr 1fr;column-gap:28px}
.timeline::before{display:none}
.timeline li{padding:0 0 16px 0}
.timeline .dot{display:none}
.time-card{min-height:128px}
.time-card:nth-child(1){min-height:0}
}
@media (max-width:1023px){
.foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
.nav-toggle{display:inline-flex}
.brand-cta,.search-look{display:none}
.brand-row{min-height:64px}
.logo{font-size:14px;white-space:normal;max-width:58vw}
.channel-row{display:none;flex-direction:column;align-items:flex-start;padding-bottom:12px;gap:8px}
.site-header.nav-open .channel-row{display:flex}
.site-header.is-compact .brand-row{max-height:88px;min-height:64px;opacity:1;pointer-events:auto}
.site-header.is-compact .mini-logo,.site-header.is-compact .compact-cta{display:none}
.site-header.is-compact .channel-extra{display:inline-flex}
.channels{flex-direction:column;align-items:flex-start;width:100%}
.band{padding:64px 0}
.band-slim{padding:20px 0 64px}
h1{font-size:26px}
h2{font-size:22px}
.check-row{grid-template-columns:1fr;gap:4px}
.news a.row,.side-row{grid-template-columns:1fr}
.more-bar{flex-direction:column;align-items:flex-start}
.foot-grid{grid-template-columns:1fr}
}
@media (max-width:639px){
.container{width:min(var(--site),calc(100% - 28px))}
.chip,.chip-wide{min-width:0;width:100%}
.cover{min-height:210px}
}