/* roulang page: index */
:root{
      --bg:#171416;
      --surface:#211c1e;
      --surface-2:#2a2325;
      --surface-3:#322a2d;
      --line:#493c40;
      --text:#f5efed;
      --muted:#b8aaad;
      --soft:#897c80;
      --brand:#bd5e6e;
      --brand-dark:#914451;
      --accent:#e2a184;
      --success:#83c29e;
      --warning:#edc27d;
      --danger:#dc777d;
      --radius:9px;
      --shadow:0 16px 42px rgba(0,0,0,.22);
      --ease:all .25s ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--bg);
      color:var(--text);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(226,161,132,.8);outline-offset:3px}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;
      background:rgba(23,20,22,.94);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(14px);
    }
    .topbar{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;min-width:255px;font-weight:700;letter-spacing:.02em}
    .brand-mark{
      width:35px;height:35px;border-radius:8px;background:var(--brand);
      display:grid;place-items:center;color:#fff;font-weight:800;font-size:14px;
      box-shadow:0 7px 20px rgba(189,94,110,.25)
    }
    .brand-name{font-size:17px;white-space:nowrap}
    .main-nav{flex:1}
    .menu{background:transparent}
    .menu li a{padding:.68rem .85rem;color:var(--muted);font-size:14px;border-radius:6px}
    .menu li a:hover,.menu li a:focus,.menu li.is-active a{color:var(--text);background:var(--surface-2)}
    .menu li.is-active a{box-shadow:inset 0 -2px var(--brand)}
    .toolbar-right{display:flex;align-items:center;gap:15px}
    .status{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:12px;white-space:nowrap}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(131,194,158,.1)}
    .notify{color:var(--muted);font-size:18px;line-height:1}
    .button{border-radius:6px;min-height:44px;padding:.72em 1.1em;font-size:14px;font-weight:700;transition:var(--ease)}
    .button.primary{background:var(--brand);color:#fff}
    .button.primary:hover{background:#ce6c7b;transform:translateY(-2px)}
    .button.hollow{border:1px solid var(--line);color:var(--text);background:transparent}
    .button.hollow:hover{border-color:var(--accent);color:var(--accent);background:rgba(226,161,132,.07)}
    .button.text-button{color:var(--accent);padding-left:0;padding-right:0}
    .menu-icon::after{background:var(--text);box-shadow:0 7px 0 var(--text),0 14px 0 var(--text)}
    .hero{padding:72px 0 54px;background:linear-gradient(180deg,#1c1719 0%,var(--bg) 100%)}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
    .eyebrow::before,.section-kicker::before{content:"";width:24px;height:1px;background:var(--brand)}
    h1,h2,h3{margin:0;color:var(--text);line-height:1.2;font-weight:750}
    h1{font-size:clamp(38px,5vw,68px);letter-spacing:-.02em;margin:18px 0 22px;max-width:720px}
    h2{font-size:clamp(27px,3vw,40px);margin:12px 0 15px}
    h3{font-size:19px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:660px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 28px}
    .hero-note{display:flex;gap:10px;align-items:flex-start;color:var(--soft);font-size:13px;max-width:600px}
    .hero-note strong{color:var(--warning)}
    .hero-stage{position:relative;min-height:360px}
    .stage-image{height:360px;width:100%;object-fit:cover;border-radius:10px;filter:saturate(.72);border:1px solid var(--line)}
    .stage-overlay{position:absolute;inset:0;border-radius:10px;background:linear-gradient(90deg,rgba(23,20,22,.82),rgba(23,20,22,.05) 65%,rgba(23,20,22,.3))}
    .stage-label{position:absolute;left:24px;bottom:22px;max-width:245px}
    .stage-label span{color:var(--accent);font-size:12px}
    .stage-label h3{margin-top:8px;font-size:23px}
    .stage-index{position:absolute;right:22px;top:20px;color:rgba(255,255,255,.65);font-size:12px;letter-spacing:.12em}
    .stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;background:var(--surface)}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
    .stat{padding:5px 20px;border-left:1px solid var(--line)}
    .stat:first-child{border-left:0}
    .stat-number{font-size:30px;font-weight:800;color:var(--text);line-height:1.2}
    .stat-label{font-size:13px;color:var(--muted);margin-top:5px}
    .stat-caption{font-size:12px;color:var(--soft)}
    .section{padding:86px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:31px}
    .section-intro{color:var(--muted);max-width:570px;margin:0}
    .matrix{display:grid;grid-template-columns:1.35fr .85fr;gap:18px}
    .category-card{position:relative;min-height:275px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
    .category-card img{width:100%;height:100%;object-fit:cover;opacity:.55;transition:transform .45s ease,opacity .3s ease}
    .category-card:hover img{transform:scale(1.04);opacity:.7}
    .category-card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(23,20,22,.95),rgba(23,20,22,.05) 75%)}
    .category-content{position:absolute;z-index:1;left:25px;right:25px;bottom:22px}
    .category-card.small{min-height:275px}
    .tag{display:inline-block;border:1px solid rgba(226,161,132,.45);color:var(--accent);padding:3px 8px;border-radius:4px;font-size:11px;margin-bottom:10px}
    .category-content p{color:#c8bbbd;font-size:14px;margin:9px 0 13px;max-width:570px}
    .arrow-link{color:var(--accent);font-size:13px;font-weight:700}
    .split-section{display:grid;grid-template-columns:.82fr 1.18fr;gap:64px;align-items:start}
    .index-panel{border-left:2px solid var(--brand);padding-left:25px}
    .index-row{display:flex;gap:18px;padding:17px 0;border-bottom:1px solid var(--line)}
    .index-row:last-child{border-bottom:0}
    .index-no{color:var(--brand);font-weight:800;font-size:14px}
    .index-row p{margin:3px 0 0;color:var(--muted);font-size:14px}
    .filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
    .filter-chip{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:5px;padding:8px 13px;font-size:13px}
    .filter-chip.active,.filter-chip:hover{border-color:var(--brand);color:var(--text);background:rgba(189,94,110,.12)}
    .content-list{border-top:1px solid var(--line)}
    .content-item{display:grid;grid-template-columns:145px 1fr auto;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
    .content-thumb{height:88px;width:145px;object-fit:cover;border-radius:6px;filter:saturate(.7)}
    .item-meta{color:var(--soft);font-size:12px;margin:7px 0}
    .item-title{font-size:17px;font-weight:700}
    .item-desc{color:var(--muted);font-size:13px;margin:0}
    .badge{display:inline-block;padding:4px 8px;border-radius:4px;background:rgba(131,194,158,.12);color:var(--success);font-size:11px}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .timeline-item{padding:22px;background:var(--surface);border-top:2px solid var(--brand);border-radius:7px}
    .timeline-time{color:var(--accent);font-size:12px;font-weight:700}
    .timeline-item h3{margin:10px 0 8px}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .trust-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .trust-item{border:1px solid var(--line);padding:22px;background:var(--surface-2);border-radius:7px}
    .trust-icon{color:var(--accent);font-size:22px}
    .trust-item h3{font-size:16px;margin:9px 0 5px}
    .trust-item p{color:var(--muted);font-size:13px;margin:0}
    .faq-wrap{max-width:880px}
    .accordion{background:transparent;margin:0}
    .accordion-title{background:var(--surface);border:1px solid var(--line);color:var(--text);font-size:15px;padding:18px 22px}
    .accordion-title:hover{background:var(--surface-2);color:var(--accent)}
    .accordion-content{background:var(--surface-2);border:1px solid var(--line);border-top:0;color:var(--muted);font-size:14px;padding:18px 22px}
    .accordion-item{margin-bottom:10px}
    .lead-section{padding:0 0 90px}
    .lead-box{display:grid;grid-template-columns:1fr .85fr;gap:45px;padding:42px;background:var(--surface-2);border:1px solid var(--line);border-radius:10px}
    .lead-box p{color:var(--muted);margin:0;max-width:580px}
    .lead-form{display:flex;gap:10px;align-items:center}
    .lead-form input{height:46px;min-width:0;flex:1;background:var(--bg);border:1px solid var(--line);border-radius:5px;color:var(--text);padding:0 14px;box-shadow:none}
    .lead-form input:focus{border-color:var(--brand);background:var(--bg);box-shadow:0 0 0 3px rgba(189,94,110,.15)}
    .form-tip{font-size:12px;color:var(--soft);margin-top:10px}
    .site-footer{border-top:1px solid var(--line);padding:32px 0 25px;background:#141112}
    .footer-grid{display:flex;justify-content:space-between;gap:30px;align-items:start}
    .footer-brand{font-weight:700}
    .footer-copy{color:var(--soft);font-size:12px;margin:8px 0 0}
    .footer-links{display:flex;gap:20px;color:var(--muted);font-size:13px}
    .footer-links a:hover{color:var(--accent)}
    .copyright{border-top:1px solid var(--line);margin-top:25px;padding-top:18px;color:var(--soft);font-size:12px}
    @media(max-width:1024px){
      .brand{min-width:auto}.toolbar-right .status{display:none}
      .hero-grid{gap:35px}.section{padding:68px 0}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,600px)}
      .topbar{min-height:67px;justify-content:space-between}
      .main-nav{position:absolute;left:16px;right:16px;top:66px;background:var(--surface);border:1px solid var(--line);border-radius:7px;box-shadow:var(--shadow)}
      .main-nav .menu{padding:8px}.main-nav .menu li a{padding:12px}
      .toolbar-right .button{display:none}
      .hero{padding:50px 0 38px}.hero-grid,.split-section,.lead-box{grid-template-columns:1fr}
      h1{font-size:42px}.hero-copy{font-size:16px}
      .hero-stage{min-height:265px}.stage-image{height:265px}
      .stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}.stat{padding:8px 14px;border-left:0;border-bottom:1px solid var(--line)}
      .stats-grid .stat:nth-last-child(-n+2){border-bottom:0}
      .matrix{grid-template-columns:1fr}.category-card,.category-card.small{min-height:245px}
      .section-head{display:block}.section-intro{margin-top:15px}
      .timeline,.trust-strip{grid-template-columns:1fr}
      .lead-box{padding:28px 22px;gap:26px}
      .footer-grid{display:block}.footer-links{margin-top:20px;flex-wrap:wrap}
    }
    @media(max-width:520px){
      body{font-size:14px}.container{width:calc(100% - 28px)}
      .brand-name{font-size:15px}.brand-mark{width:31px;height:31px}
      h1{font-size:35px}.hero-actions .button{width:100%;text-align:center}
      .content-item{grid-template-columns:92px 1fr;gap:13px}.content-thumb{width:92px;height:72px;grid-row:span 2}.content-item .button{grid-column:2;justify-self:start}
      .lead-form{display:block}.lead-form .button{width:100%;margin-top:10px}
      .section{padding:56px 0}.lead-section{padding-bottom:60px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
    }

/* roulang page: category2 */
:root{
 --bg:#171416;
 --surface:#211c1e;
 --surface-2:#2a2325;
 --surface-3:#322a2d;
 --line:#493c40;
 --text:#f5efed;
 --muted:#b8aaad;
 --soft:#897c80;
 --brand:#bd5e6e;
 --brand-dark:#914451;
 --accent:#e2a184;
 --success:#83c29e;
 --warning:#edc27d;
 --danger:#dc777d;
 --radius:9px;
 --shadow:0 16px 42px rgba(0,0,0,.22);
 --ease:all .25s ease;
}
html{scroll-behavior:smooth}
*{box-sizing:border-box}
body{
 margin:0;background:var(--bg);color:var(--text);
 font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
 font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p{margin-top:0}
h1,h2,h3,h4{line-height:1.3}
h1{font-size:clamp(32px,4.2vw,58px);letter-spacing:.01em}
h2{font-size:clamp(26px,3vw,38px)}
h3{font-size:20px}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:hover{color:var(--accent)}
img{display:block;max-width:100%}
button,input,select{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:0 auto}
.site-header{
 position:sticky;top:0;z-index:20;background:rgba(23,20,22,.95);
 border-bottom:1px solid var(--line);backdrop-filter:blur(14px)
}
.topbar{min-height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:255px;font-weight:700;letter-spacing:.02em}
.brand-mark{
 width:35px;height:35px;border-radius:8px;background:var(--brand);
 display:grid;place-items:center;color:#fff;font-weight:800;font-size:14px;
 box-shadow:0 7px 20px rgba(189,94,110,.25)
}
.brand-name{font-size:17px;white-space:nowrap}
.main-nav{flex:1}
.main-nav ul{margin:0;display:flex;align-items:center;gap:3px;list-style:none}
.menu li a,.main-nav li a{
 display:block;padding:.68rem .85rem;color:var(--muted);font-size:14px;border-radius:6px
}
.main-nav li a:hover,.main-nav li a:focus,.main-nav li.is-active a{
 color:var(--text);background:var(--surface-2)
}
.main-nav li.is-active a{box-shadow:inset 0 -2px var(--brand)}
.toolbar-right{display:flex;align-items:center;gap:16px}
.status{display:flex;align-items:center;gap:7px;color:var(--soft);font-size:12px;white-space:nowrap}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--success);display:inline-block}
.notify{color:var(--accent);font-size:21px;line-height:1}
.button{
 display:inline-flex;align-items:center;justify-content:center;min-height:44px;
 border-radius:6px;padding:.72em 1.1em;font-size:14px;font-weight:700;
 transition:var(--ease);border:1px solid transparent
}
.button.primary{background:var(--brand);color:#fff}
.button.primary:hover{background:#ce6c7b;color:#fff;transform:translateY(-2px)}
.button.hollow{border-color:var(--line);color:var(--text);background:transparent}
.button.hollow:hover{border-color:var(--accent);color:var(--accent);background:rgba(226,161,132,.07)}
.button.text-button{color:var(--accent);padding-left:0;padding-right:0;background:none}
.button:focus,.filter-chip:focus,input:focus,select:focus,.accordion-title:focus{
 outline:3px solid rgba(226,161,132,.35);outline-offset:3px
}
.button:active{transform:translateY(1px)}
.menu-icon{margin-left:auto;width:44px;height:44px;background:none;border:1px solid var(--line);border-radius:6px}
.menu-icon::after{background:var(--text);box-shadow:0 7px 0 var(--text),0 14px 0 var(--text)}
.hero{
 padding:62px 0 48px;
 background:linear-gradient(180deg,#1c1719 0%,var(--bg) 100%);
}
.breadcrumb{color:var(--soft);font-size:13px;margin-bottom:25px}
.breadcrumb a{color:var(--muted)}
.hero-grid{display:grid;grid-template-columns:1fr .88fr;gap:62px;align-items:center}
.eyebrow,.section-kicker{
 display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:12px;
 font-weight:800;letter-spacing:.12em
}
.eyebrow::before,.section-kicker::before{content:"";width:24px;height:1px;background:var(--brand)}
.hero h1{margin:17px 0 20px;max-width:690px}
.hero-copy{font-size:18px;color:var(--muted);max-width:650px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 25px}
.hero-note{display:flex;gap:10px;align-items:flex-start;color:var(--soft);font-size:13px;max-width:620px}
.hero-note strong{color:var(--warning)}
.hero-stage{position:relative;min-height:350px}
.stage-image{height:350px;width:100%;object-fit:cover;border-radius:10px;filter:saturate(.72);border:1px solid var(--line)}
.stage-overlay{position:absolute;inset:0;border-radius:10px;background:linear-gradient(90deg,rgba(23,20,22,.88),rgba(23,20,22,.12) 72%,rgba(23,20,22,.35))}
.stage-index{position:absolute;right:22px;top:20px;color:rgba(255,255,255,.7);font-size:12px;letter-spacing:.12em}
.stage-label{position:absolute;left:24px;bottom:24px;max-width:280px}
.stage-label span{color:var(--accent);font-size:12px}
.stage-label h3{margin:8px 0;font-size:24px}
.stage-label p{color:var(--muted);font-size:13px;margin:0}
.section{padding:80px 0}
.section.dark{background:var(--surface)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:30px}
.section-intro{color:var(--muted);max-width:590px;margin:0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{
 padding:23px 20px;border:1px solid var(--line);border-radius:var(--radius);
 background:var(--surface);position:relative
}
.stat::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;background:var(--brand)}
.stat-number{display:block;color:var(--text);font-size:31px;font-weight:800;line-height:1.1}
.stat-label{display:block;color:var(--accent);font-size:13px;margin-top:9px}
.stat-note{color:var(--soft);font-size:12px}
.filter-bar{
 display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:18px 0;
 border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:27px
}
.filter-title{color:var(--muted);font-size:13px;margin-right:5px}
.filter-chip{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:5px;padding:8px 13px;font-size:13px;min-height:40px}
.filter-chip.active,.filter-chip:hover{border-color:var(--brand);color:var(--text);background:rgba(189,94,110,.12)}
.media-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:32px}
.media-feature{display:grid;grid-template-columns:.95fr 1.05fr;gap:26px;padding:20px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius)}
.media-image{width:100%;height:250px;object-fit:cover;border-radius:6px;filter:saturate(.75)}
.tag{display:inline-block;border:1px solid rgba(226,161,132,.45);color:var(--accent);padding:3px 8px;border-radius:4px;font-size:11px;margin-bottom:11px}
.media-feature h3{font-size:24px;margin:8px 0 11px}
.media-feature p{font-size:14px;color:var(--muted)}
.meta-line{color:var(--soft);font-size:12px;margin:13px 0 18px}
.badge{display:inline-block;padding:4px 8px;border-radius:4px;background:rgba(131,194,158,.12);color:var(--success);font-size:11px}
.side-list{border-top:1px solid var(--line)}
.side-item{display:grid;grid-template-columns:88px 1fr;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
.side-item img{height:72px;width:88px;object-fit:cover;border-radius:5px;filter:saturate(.65)}
.side-item h4{font-size:15px;margin:2px 0 5px}
.side-item p{font-size:12px;color:var(--soft);margin:0}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-box{padding:27px;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface)}
.compare-box.highlight{border-color:rgba(189,94,110,.7);background:linear-gradient(135deg,rgba(189,94,110,.13),var(--surface))}
.compare-box h3{margin-bottom:17px}
.compare-box ul{list-style:none;margin:0;padding:0}
.compare-box li{padding:11px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:14px}
.compare-box li:last-child{border-bottom:0}
.compare-box li::before{content:"✓";color:var(--success);margin-right:9px}
.process{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.process-item{border-top:2px solid var(--brand);padding:22px;background:var(--surface-2);border-radius:7px}
.process-num{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.12em}
.process-item h3{margin:10px 0 8px}
.process-item p{color:var(--muted);font-size:14px;margin:0}
.faq-wrap{max-width:900px}
.accordion{background:transparent;margin:0}
.accordion-item{margin-bottom:10px;background:none}
.accordion-title{
 background:var(--surface);border:1px solid var(--line);color:var(--text);
 font-size:15px;padding:18px 22px
}
.accordion-title:hover{background:var(--surface-2);color:var(--accent)}
.accordion-content{background:var(--surface-2);border:1px solid var(--line);border-top:0;color:var(--muted);font-size:14px;padding:18px 22px}
.age-section{padding:0 0 86px}
.age-box{
 display:grid;grid-template-columns:1.15fr .85fr;gap:35px;align-items:center;
 padding:37px 40px;border:1px solid rgba(226,161,132,.35);border-radius:10px;
 background:var(--surface-2)
}
.age-box h2{font-size:29px;margin:12px 0}
.age-box p{color:var(--muted);margin-bottom:0}
.age-actions{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}
.form-panel{padding:29px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.form-panel label{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}
.form-panel input,.form-panel select{
 width:100%;height:46px;background:var(--surface-2);border:1px solid var(--line);
 border-radius:5px;color:var(--text);padding:0 13px;margin-bottom:15px
}
.form-panel input::placeholder{color:var(--soft)}
.form-help{font-size:12px;color:var(--soft);margin:10px 0 0}
.cta{padding:62px 0;background:var(--brand-dark)}
.cta-inner{display:flex;justify-content:space-between;gap:30px;align-items:center}
.cta h2{margin:0 0 8px}
.cta p{color:#ead4d1;margin:0;max-width:650px}
.cta .button.hollow{border-color:rgba(255,255,255,.45);color:#fff}
.site-footer{padding:40px 0 23px;background:#120f10;border-top:1px solid var(--line)}
.footer-grid{display:flex;justify-content:space-between;gap:30px;padding-bottom:29px}
.footer-brand{font-size:18px;font-weight:800;margin-bottom:7px}
.footer-copy{color:var(--soft);font-size:13px;margin:0}
.footer-links{display:flex;gap:21px;flex-wrap:wrap;align-items:flex-start}
.footer-links a{color:var(--muted);font-size:13px}
.footer-links a:hover{color:var(--accent)}
.copyright{padding-top:20px;border-top:1px solid var(--line);color:var(--soft);font-size:12px}
@media(max-width:1024px){
 .toolbar-right .status{display:none}
 .brand{min-width:220px}
 .hero-grid{gap:35px}
 .media-layout{grid-template-columns:1fr}
}
@media(max-width:768px){
 .container{width:min(100% - 32px,600px)}
 .topbar{min-height:68px;gap:15px}
 .brand{min-width:0;flex:1}
 .brand-name{font-size:15px}
 .main-nav{display:none}
 .toolbar-right{display:none}
 .hero{padding:40px 0 35px}
 .hero-grid,.age-box{grid-template-columns:1fr}
 .hero-stage{min-height:280px}
 .stage-image{height:280px}
 .section{padding:60px 0}
 .stats-grid{grid-template-columns:repeat(2,1fr)}
 .media-feature{grid-template-columns:1fr}
 .media-image{height:220px}
 .compare,.process{grid-template-columns:1fr}
 .age-actions{justify-content:flex-start;margin-top:8px}
 .cta-inner,.footer-grid{display:block}
 .cta .button{margin-top:22px}
 .footer-links{margin-top:25px}
}
@media(max-width:520px){
 body{font-size:15px}
 .container{width:calc(100% - 28px)}
 h1{font-size:34px}
 .hero-copy{font-size:16px}
 .stats-grid{gap:10px}
 .stat{padding:18px 14px}
 .stat-number{font-size:25px}
 .filter-bar{align-items:flex-start}
 .filter-chip{flex:1 0 auto}
 .media-feature{padding:15px}
 .age-box{padding:25px 20px}
 .age-box h2{font-size:25px}
 .footer-links{gap:12px 18px}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
}

/* roulang page: category1 */
:root{
 --bg:#171416;
 --surface:#211c1e;
 --surface-2:#2a2325;
 --surface-3:#322a2d;
 --line:#493c40;
 --text:#f5efed;
 --muted:#b8aaad;
 --soft:#897c80;
 --brand:#bd5e6e;
 --brand-dark:#914451;
 --accent:#e2a184;
 --success:#83c29e;
 --warning:#edc27d;
 --danger:#dc777d;
 --radius:9px;
 --shadow:0 16px 42px rgba(0,0,0,.22);
 --ease:all .25s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p{margin-top:0}
h1{font-size:clamp(34px,5vw,64px);line-height:1.18;letter-spacing:.01em;margin-bottom:22px}
h2{font-size:clamp(25px,3vw,38px);line-height:1.3;margin-bottom:14px}
h3{font-size:19px;line-height:1.4}
a{color:inherit;text-decoration:none;transition:var(--ease)}
a:hover{color:var(--accent)}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1200px,calc(100% - 48px));margin:0 auto}
.site-header{
 position:sticky;top:0;z-index:20;
 background:rgba(23,20,22,.95);
 border-bottom:1px solid var(--line);
 backdrop-filter:blur(14px);
}
.topbar{min-height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:255px;font-weight:700;letter-spacing:.02em}
.brand-mark{
 width:35px;height:35px;border-radius:8px;background:var(--brand);
 display:grid;place-items:center;color:#fff;font-weight:800;font-size:14px;
 box-shadow:0 7px 20px rgba(189,94,110,.25)
}
.brand-name{font-size:17px;white-space:nowrap}
.main-nav{flex:1}
.main-nav .menu{background:transparent}
.menu li a{padding:.68rem .85rem;color:var(--muted);font-size:14px;border-radius:6px}
.menu li a:hover,.menu li a:focus,.menu li.is-active a{color:var(--text);background:var(--surface-2)}
.menu li.is-active a{box-shadow:inset 0 -2px var(--brand)}
.toolbar-right{display:flex;align-items:center;gap:16px}
.status{font-size:12px;color:var(--muted);white-space:nowrap}
.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--success);margin-right:6px;box-shadow:0 0 0 4px rgba(131,194,158,.12)}
.notify{font-size:22px;color:var(--accent);line-height:1;transform:rotate(-20deg)}
.button{
 border-radius:6px;min-height:44px;padding:.72em 1.1em;font-size:14px;
 font-weight:700;transition:var(--ease);border:0;display:inline-flex;align-items:center;justify-content:center
}
.button.primary{background:var(--brand);color:#fff}
.button.primary:hover{background:#ce6c7b;color:#fff;transform:translateY(-2px)}
.button.hollow{border:1px solid var(--line);color:var(--text);background:transparent}
.button.hollow:hover{border-color:var(--accent);color:var(--accent);background:rgba(226,161,132,.07)}
.button.text-button{color:var(--accent);padding-left:0;padding-right:0;background:none}
.button:focus,.filter-chip:focus,input:focus{outline:3px solid rgba(226,161,132,.35);outline-offset:3px}
.button:active{transform:translateY(1px)}
.menu-icon::after{background:var(--text);box-shadow:0 7px 0 var(--text),0 14px 0 var(--text)}
.hero{
 padding:72px 0 54px;
 background:linear-gradient(180deg,#1c1719 0%,var(--bg) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:60px;align-items:center}
.eyebrow,.section-kicker{
 display:inline-flex;align-items:center;gap:8px;color:var(--accent);
 font-size:12px;font-weight:800;letter-spacing:.12em
}
.eyebrow::before,.section-kicker::before{content:"";width:24px;height:1px;background:var(--brand)}
.hero-copy{font-size:18px;color:var(--muted);max-width:650px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 25px}
.hero-note{display:flex;gap:10px;align-items:flex-start;color:var(--soft);font-size:13px;max-width:620px}
.hero-note strong{color:var(--warning)}
.hero-stage{position:relative;min-height:365px}
.stage-image{height:365px;width:100%;object-fit:cover;border-radius:10px;filter:saturate(.72);border:1px solid var(--line)}
.stage-overlay{position:absolute;inset:0;border-radius:10px;background:linear-gradient(90deg,rgba(23,20,22,.86),rgba(23,20,22,.08) 70%,rgba(23,20,22,.35))}
.stage-label{position:absolute;left:24px;bottom:22px;max-width:280px}
.stage-label span{color:var(--accent);font-size:12px}
.stage-label h3{margin:8px 0 0;font-size:23px}
.stage-index{position:absolute;right:22px;top:20px;color:rgba(255,255,255,.65);font-size:12px;letter-spacing:.12em}
.section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:31px}
.section-intro{color:var(--muted);max-width:590px;margin:0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
 padding:22px 20px;border-top:2px solid var(--brand);
 background:var(--surface);border-bottom:1px solid var(--line)
}
.stat-number{font-size:31px;font-weight:800;line-height:1.1;color:var(--text)}
.stat-label{margin:8px 0 4px;font-weight:700}
.stat small{display:block;color:var(--soft);font-size:12px}
.matrix{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.feature-panel{border:1px solid var(--line);background:var(--surface);padding:30px;border-radius:var(--radius)}
.feature-panel h3{margin:12px 0 8px}
.feature-panel p{color:var(--muted);font-size:14px}
.feature-list{list-style:none;margin:23px 0 0;padding:0}
.feature-list li{display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.feature-list li::before{content:"✓";color:var(--success);font-weight:800}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mini-card{padding:20px;background:var(--surface-2);border:1px solid var(--line);border-radius:7px}
.mini-card strong{display:block;color:var(--accent);font-size:14px;margin-bottom:6px}
.mini-card span{font-size:13px;color:var(--muted)}
.filter-bar{
 display:flex;align-items:center;gap:10px;flex-wrap:wrap;
 padding:16px 18px;background:var(--surface-2);border:1px solid var(--line);
 border-radius:7px;margin-bottom:24px
}
.filter-label{font-size:13px;color:var(--soft);margin-right:4px}
.filter-chip{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:5px;padding:8px 13px;font-size:13px;min-height:40px}
.filter-chip.active,.filter-chip:hover{border-color:var(--brand);color:var(--text);background:rgba(189,94,110,.12)}
.content-list{border-top:1px solid var(--line)}
.content-item{display:grid;grid-template-columns:190px 1fr auto;gap:22px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.content-item img{width:190px;height:112px;object-fit:cover;border-radius:6px;border:1px solid var(--line);filter:saturate(.72)}
.item-meta{color:var(--soft);font-size:12px;margin:7px 0}
.item-title{font-size:17px;font-weight:700}
.item-desc{color:var(--muted);font-size:13px;margin:0}
.badge{display:inline-block;padding:4px 8px;border-radius:4px;background:rgba(131,194,158,.12);color:var(--success);font-size:11px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-box{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:7px}
.compare-box.highlight{border-color:rgba(189,94,110,.7);background:linear-gradient(135deg,var(--surface),#2a2023)}
.compare-box h3{margin:0 0 14px}
.compare-box p{font-size:14px;color:var(--muted);margin-bottom:20px}
.compare-row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-top:1px solid var(--line);font-size:13px}
.compare-row span:last-child{color:var(--accent);font-weight:700}
.faq-wrap{max-width:880px}
.accordion{background:transparent}
.accordion-item{margin-bottom:10px}
.accordion-title{background:var(--surface);border:1px solid var(--line);color:var(--text);font-size:15px;padding:18px 22px}
.accordion-title:hover{background:var(--surface-2);color:var(--accent)}
.accordion-content{background:var(--surface-2);border:1px solid var(--line);border-top:0;color:var(--muted);font-size:14px;padding:18px 22px}
.accordion-title::before{color:var(--accent)}
.notice{
 display:flex;gap:14px;align-items:flex-start;padding:19px 22px;
 background:rgba(237,194,125,.07);border:1px solid rgba(237,194,125,.28);
 border-radius:7px;color:var(--muted);font-size:13px
}
.notice strong{color:var(--warning);white-space:nowrap}
.lead-section{padding:0 0 90px}
.lead-box{
 display:grid;grid-template-columns:1fr .8fr;gap:46px;padding:42px;
 background:var(--surface-2);border:1px solid var(--line);border-radius:10px
}
.lead-box p{color:var(--muted)}
.browse-form{display:grid;gap:12px}
.browse-form label{font-size:13px;color:var(--soft)}
.browse-form input,.browse-form select{
 width:100%;height:47px;background:var(--surface);border:1px solid var(--line);
 color:var(--text);border-radius:5px;padding:0 13px
}
.browse-form input::placeholder{color:var(--soft)}
.form-note{font-size:12px;color:var(--soft);margin:0}
.site-footer{border-top:1px solid var(--line);padding:34px 0 26px;background:#141112}
.footer-grid{display:flex;justify-content:space-between;gap:30px;align-items:start}
.footer-brand{font-weight:800;font-size:17px}
.footer-copy{color:var(--soft);font-size:13px;margin:8px 0 0}
.footer-links{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.footer-links a:hover{color:var(--accent)}
.copyright{border-top:1px solid var(--line);margin-top:28px;padding-top:19px;color:var(--soft);font-size:12px}
@media(max-width:1024px){
 .topbar{gap:18px}.brand{min-width:220px}.toolbar-right .status{display:none}
 .hero-grid{gap:35px}.matrix{grid-template-columns:1fr}
}
@media(max-width:768px){
 .container{width:min(100% - 32px,600px)}
 .topbar{min-height:68px}.brand-name{font-size:15px}.brand{min-width:auto}
 .main-nav{display:none}.toolbar-right{margin-left:auto}.toolbar-right .notify{display:none}
 .hero{padding:50px 0 36px}.hero-grid{grid-template-columns:1fr;gap:35px}
 .hero-copy{font-size:16px}.hero-stage,.stage-image{min-height:285px;height:285px}
 .section{padding:60px 0}.section-head{display:block}.section-intro{margin-top:10px}
 .stats-grid{grid-template-columns:1fr 1fr;gap:12px}.stat{padding:18px 15px}.stat-number{font-size:26px}
 .content-item{grid-template-columns:130px 1fr;gap:14px}.content-item .button{grid-column:2;justify-self:start}
 .content-item img{width:130px;height:84px}.item-title{font-size:15px}.item-desc{font-size:12px}
 .compare,.lead-box{grid-template-columns:1fr}.lead-box{padding:26px;gap:28px}
 .footer-grid{display:block}.footer-links{margin-top:22px}
}
@media(max-width:520px){
 h1{font-size:34px}.mini-grid{grid-template-columns:1fr}
 .stats-grid{gap:9px}.stat-number{font-size:23px}.stat-label{font-size:13px}
 .filter-bar{align-items:flex-start}.filter-label{width:100%}
 .content-item{grid-template-columns:1fr;padding:18px 0}.content-item img{width:100%;height:180px}
 .content-item .button{grid-column:auto}.hero-actions .button{width:100%}
 .stage-label h3{font-size:19px}
}
@media(prefers-reduced-motion:reduce){
 *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
}