/* roulang page: index */
:root{
      --bg:#160F19;
      --deep:#211522;
      --panel:#2A1B2A;
      --panel-2:#342238;
      --lime:#D7FF3F;
      --pink:#F05BA8;
      --lav:#B696FF;
      --text:#FAF7F4;
      --muted:#C9BEC8;
      --soft:#978A97;
      --line:rgba(255,255,255,.11);
      --line-strong:rgba(215,255,63,.42);
      --radius-xl:20px;
      --radius-lg:16px;
      --radius-md:14px;
      --radius-sm:10px;
      --shadow:0 18px 50px rgba(4,0,10,.28);
      --container:1200px;
    }
    *,*::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 SC",sans-serif;
      font-size:16px;
      line-height:1.8;
      -webkit-font-smoothing:antialiased;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.18;
      background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,black,transparent 80%);
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
    .site-header{
      position:sticky;top:0;z-index:20;
      height:74px;
      background:rgba(22,15,25,.96);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(10px);
    }
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:inline-flex;align-items:center;gap:12px;min-width:240px}
    .brand-mark{
      width:34px;height:34px;display:grid;place-items:center;
      color:var(--bg);background:var(--lime);font-weight:900;
      border-radius:8px;box-shadow:4px 4px 0 var(--pink);
    }
    .brand-text{font-size:16px;font-weight:800;letter-spacing:.02em;line-height:1.25}
    .brand-sub{display:block;font-size:11px;color:var(--soft);font-weight:500;margin-top:3px}
    .main-nav{display:flex;align-items:center;gap:8px}
    .main-nav a{
      position:relative;padding:9px 14px;color:var(--muted);font-size:14px;
      border-radius:8px;transition:.2s ease;
    }
    .main-nav a:hover,.main-nav a.active{color:var(--text);background:rgba(255,255,255,.05)}
    .main-nav a.active::before{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--lime)}
    .nav-action,.btn-primary{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:0 18px;border:1px solid var(--lime);
      background:var(--lime);color:#171019;border-radius:var(--radius-sm);
      font-size:14px;font-weight:800;transition:.2s ease;
    }
    .nav-action:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 9px 22px rgba(215,255,63,.16)}
    .btn-primary:active,.nav-action:active{transform:translateY(0);box-shadow:none}
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:0 18px;border:1px solid var(--line);
      background:rgba(255,255,255,.025);color:var(--text);border-radius:var(--radius-sm);
      font-size:14px;font-weight:700;transition:.2s ease;
    }
    .btn-secondary:hover{border-color:var(--pink);background:rgba(240,91,168,.1);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:8px;width:44px;height:44px}
    .eyebrow,.section-kicker{
      display:inline-flex;align-items:center;gap:9px;color:var(--lime);
      font-size:12px;font-weight:800;letter-spacing:.12em;
    }
    .eyebrow::before,.section-kicker::before{content:"";width:22px;height:2px;background:var(--pink)}
    .hero{padding:76px 0 42px;position:relative}
    .hero-grid{display:grid;grid-template-columns:1fr 440px;gap:66px;align-items:center}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.16;letter-spacing:-.045em;margin:18px 0 22px;max-width:720px}
    h1 span{color:var(--lime)}
    .hero-copy{font-size:17px;color:var(--muted);max-width:670px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .hero-note{display:flex;flex-wrap:wrap;gap:18px;margin-top:30px;color:var(--soft);font-size:13px}
    .hero-note span{display:inline-flex;align-items:center;gap:7px}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block}
    .index-panel{
      min-height:365px;padding:24px;background:var(--panel);
      border:1px solid var(--line);border-radius:var(--radius-xl);
      box-shadow:var(--shadow);position:relative;overflow:hidden;
    }
    .index-panel::after{content:"";position:absolute;right:-60px;bottom:-80px;width:210px;height:210px;border:1px solid rgba(182,150,255,.35);border-radius:50%}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px}
    .panel-title{font-weight:800;font-size:15px}
    .panel-code{color:var(--pink);font-size:12px}
    .panel-list{display:grid;gap:12px;margin-top:20px}
    .panel-row{display:grid;grid-template-columns:42px 1fr auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
    .panel-num{color:var(--lav);font-size:13px;font-weight:800}
    .panel-row strong{display:block;font-size:14px}
    .panel-row small{display:block;color:var(--soft);font-size:12px;margin-top:2px}
    .panel-tag{padding:3px 8px;border:1px solid var(--line);color:var(--muted);font-size:11px;border-radius:5px}
    .signal{display:flex;gap:4px;align-items:end;height:20px}
    .signal i{width:4px;background:var(--pink);display:block;border-radius:2px}
    .signal i:nth-child(1){height:7px}.signal i:nth-child(2){height:13px}.signal i:nth-child(3){height:18px}.signal i:nth-child(4){height:10px}
    .info-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:15px 0;background:rgba(42,27,42,.45)}
    .strip-inner{display:flex;flex-wrap:wrap;gap:12px 30px;align-items:center;color:var(--muted);font-size:13px}
    .strip-inner b{color:var(--text)}
    section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head h2{font-size:clamp(28px,3.5vw,40px);line-height:1.25;margin:12px 0 0;letter-spacing:-.03em}
    .section-desc{max-width:530px;color:var(--muted);margin:0;font-size:15px}
    .problem-layout{display:grid;grid-template-columns:200px 1fr;gap:45px}
    .large-index{font-size:94px;line-height:1;color:var(--pink);font-weight:900;letter-spacing:-.08em;border-right:1px solid var(--line);padding-top:5px}
    .problem-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .problem-card{padding:23px;background:var(--deep);border:1px solid var(--line);border-left:3px solid var(--pink);border-radius:var(--radius-md);transition:.2s}
    .problem-card:hover{transform:translateY(-4px);border-color:rgba(240,91,168,.55)}
    .problem-card h3{font-size:18px;margin:0 0 8px}
    .problem-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}
    .solution{background:var(--deep);border-block:1px solid var(--line)}
    .filter-row{display:flex;gap:9px;overflow:auto;padding-bottom:12px;margin-bottom:25px}
    .filter-row a{white-space:nowrap;padding:8px 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px;transition:.2s}
    .filter-row a:hover,.filter-row a.active{color:#171019;background:var(--lime);border-color:var(--lime)}
    .category-grid{display:grid;grid-template-columns:1.25fr .75fr;grid-template-rows:1fr 1fr;gap:16px}
    .category-card{position:relative;min-height:205px;padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.25s}
    .category-card:first-child{grid-row:span 2;min-height:426px}
    .category-card::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 15px,rgba(182,150,255,.05) 16px 17px);pointer-events:none}
    .category-card:hover{border-color:var(--pink);transform:translateY(-4px);box-shadow:var(--shadow)}
    .category-card > *{position:relative}
    .card-index{font-size:12px;color:var(--lime);font-weight:900;letter-spacing:.08em}
    .category-card h3{font-size:25px;margin:66px 0 10px}
    .category-card:not(:first-child) h3{margin-top:30px;font-size:20px}
    .category-card p{color:var(--muted);font-size:14px;margin-bottom:20px}
    .card-link{color:var(--lime);font-size:13px;font-weight:800}
    .outcomes{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
    .path-card,.verify-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:27px}
    .path{display:grid;gap:0;margin-top:22px}
    .path-step{display:grid;grid-template-columns:45px 1fr auto;gap:15px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line)}
    .path-step:last-child{border-bottom:0}
    .step-no{width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--pink);color:var(--pink);border-radius:50%;font-size:12px;font-weight:900}
    .path-step strong{font-size:15px}.path-step small{display:block;color:var(--soft);font-size:12px}
    .done{color:var(--lime);font-size:12px}
    .verify-card h3{font-size:20px;margin:0 0 20px}
    .verify-item{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
    .verify-item span{color:var(--soft)}.verify-item b{color:var(--lime);font-weight:700}
    .quotes{display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:16px;align-items:stretch}
    .quote-card{padding:25px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);position:relative}
    .quote-card:nth-child(2){border-top:3px solid var(--lime);transform:translateY(-14px)}
    .quote-mark{color:var(--pink);font-size:42px;line-height:.8;font-family:Georgia,serif}
    .quote-card p{color:var(--muted);font-size:15px;margin:16px 0 23px}
    .quote-meta{display:flex;justify-content:space-between;color:var(--soft);font-size:12px}
    .updates{background:var(--deep);border-block:1px solid var(--line)}
    .updates-grid{display:grid;grid-template-columns:1fr 350px;gap:40px}
    .update-list{border-top:1px solid var(--line)}
    .update-item{display:grid;grid-template-columns:100px 1fr 22px;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line);transition:.2s}
    .update-item:hover{padding-left:8px;background:rgba(255,255,255,.025)}
    .update-date{font-size:12px;color:var(--pink)}
    .update-item strong{font-size:15px}.update-item small{display:block;color:var(--muted);font-size:13px;margin-top:3px}
    .notice{background:var(--panel);padding:24px;border:1px solid var(--line);border-left:3px solid var(--lav);border-radius:var(--radius-md)}
    .notice h3{margin:0 0 10px;font-size:19px}.notice p{margin:0;color:var(--muted);font-size:14px}
    .faq-list{max-width:850px;margin:auto;border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:0 4px}
    summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:18px;padding:19px 0;font-weight:700}
    summary::-webkit-details-marker{display:none}
    summary::after{content:"+";color:var(--lime);font-size:22px;line-height:1}
    details[open] summary::after{content:"−";color:var(--pink)}
    details p{color:var(--muted);font-size:14px;max-width:760px;padding:0 32px 18px 0;margin:0}
    .cta{padding:0 0 90px}
    .cta-box{position:relative;overflow:hidden;padding:48px 52px;background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--radius-xl)}
    .cta-box::before{content:"";position:absolute;left:0;top:0;width:55%;height:3px;background:var(--lime);box-shadow:0 0 18px var(--lime)}
    .cta-box::after{content:"";position:absolute;right:-90px;bottom:-120px;width:330px;height:250px;border:1px solid rgba(240,91,168,.3);transform:rotate(-18deg)}
    .cta-box > *{position:relative;z-index:1}
    .cta-box h2{font-size:clamp(28px,4vw,42px);margin:0 0 12px}.cta-box p{color:var(--muted);max-width:680px;margin-bottom:25px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
    .age-note{margin-top:24px;color:var(--soft);font-size:12px;border-top:1px solid var(--line);padding-top:17px}
    footer{padding:45px 0 25px;border-top:1px solid var(--line);background:#120C15}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
    footer h3{font-size:16px;margin:0 0 13px}footer p,footer a{color:var(--soft);font-size:13px}
    footer a{display:block;padding:3px 0;transition:.2s}footer a:hover{color:var(--lime)}
    .footer-brand{font-weight:800;color:var(--text);font-size:17px}
    .copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:32px;padding-top:18px;color:var(--soft);font-size:12px}
    @media(max-width:900px){
      .hero-grid,.outcomes,.updates-grid{grid-template-columns:1fr}
      .hero{padding-top:55px}.index-panel{max-width:600px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
      .quotes{grid-template-columns:1fr}.quote-card:nth-child(2){transform:none}
    }
    @media(max-width:767px){
      .container{width:min(100% - 32px,var(--container))}
      .site-header{height:66px}.brand{min-width:0}.brand-text{font-size:14px}.brand-sub{display:none}
      .main-nav,.nav-action{display:none}.menu-toggle{display:block}
      .main-nav.open{display:flex;position:absolute;top:66px;left:0;right:0;padding:15px 16px 22px;flex-direction:column;align-items:stretch;background:var(--deep);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
      .main-nav.open a{padding:13px 14px}
      .main-nav.open a.active::before{left:0;right:auto;top:13px;bottom:13px;width:3px;height:auto}
      .hero{padding:43px 0 30px}.hero-grid{gap:33px}h1{font-size:38px}
      .hero-copy{font-size:15px}.hero-actions>*{flex:1 1 100%}.hero-note{gap:10px;display:grid}
      section{padding:64px 0}.section-head{display:block;margin-bottom:25px}.section-desc{margin-top:15px}
      .problem-layout{grid-template-columns:1fr;gap:22px}.large-index{font-size:64px;border-right:0;border-bottom:1px solid var(--line);padding-bottom:14px}
      .problem-list{grid-template-columns:1fr}.category-grid{grid-template-columns:1fr;grid-template-rows:auto}.category-card,.category-card:first-child{grid-row:auto;min-height:220px}
      .category-card h3,.category-card:not(:first-child) h3{margin-top:45px}
      .path-step{grid-template-columns:38px 1fr;gap:11px}.done{grid-column:2}
      .update-item{grid-template-columns:74px 1fr 16px;gap:10px}
      .cta-box{padding:34px 24px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
    }
    @media(max-width:480px){
      .footer-grid{grid-template-columns:1fr}.index-panel{padding:18px}.panel-row{grid-template-columns:32px 1fr}.panel-tag{display:none}
      h1{font-size:34px}.strip-inner{display:grid;gap:7px}.cta-actions>*{width:100%}
    }
    @media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --bg:#160F19;--deep:#211522;--panel:#2A1B2A;--panel-2:#342238;
 --lime:#D7FF3F;--pink:#F05BA8;--lav:#B696FF;--text:#FAF7F4;
 --muted:#C9BEC8;--soft:#978A97;--line:rgba(255,255,255,.11);
 --line-strong:rgba(215,255,63,.42);--radius-xl:20px;--radius-lg:16px;
 --radius-md:14px;--radius-sm:10px;--shadow:0 18px 50px rgba(4,0,10,.28);
 --container:1200px;
}
*{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 SC",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.18;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;height:74px;background:rgba(22,15,25,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:240px}
.brand-mark{width:34px;height:34px;display:grid;place-items:center;color:var(--bg);background:var(--lime);font-weight:900;border-radius:8px;box-shadow:4px 4px 0 var(--pink)}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.02em;line-height:1.25}
.brand-sub{display:block;font-size:11px;color:var(--soft);font-weight:500;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{position:relative;padding:9px 14px;color:var(--muted);font-size:14px;border-radius:8px;transition:.2s ease}
.main-nav a:hover,.main-nav a.active{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.active::before{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--lime)}
.nav-action,.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 18px;border:1px solid var(--lime);background:var(--lime);color:#171019;border-radius:var(--radius-sm);font-size:14px;font-weight:800;transition:.2s ease}
.nav-action:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 9px 22px rgba(215,255,63,.16)}
.btn-primary:active,.nav-action:active{transform:translateY(0);box-shadow:none}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 18px;border:1px solid var(--line);background:rgba(255,255,255,.025);color:var(--text);border-radius:var(--radius-sm);font-size:14px;font-weight:700;transition:.2s ease}
.btn-secondary:hover{border-color:var(--pink);background:rgba(240,91,168,.1);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:8px;width:44px;height:44px}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
.eyebrow::before,.section-kicker::before{content:"";width:22px;height:2px;background:var(--pink)}
.breadcrumb{padding:22px 0 0;color:var(--soft);font-size:13px}
.breadcrumb a{transition:.2s}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb span{margin:0 9px;color:var(--pink)}
.hero{padding:42px 0 58px;position:relative}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:70px;align-items:center}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(34px,5vw,54px);line-height:1.2;letter-spacing:-.04em;margin:16px 0 20px}
.hero-copy{font-size:17px;color:var(--muted);max-width:680px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-note{display:flex;flex-wrap:wrap;gap:18px;margin-top:25px;color:var(--soft);font-size:13px}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.index-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-xl);padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.index-panel::after{content:"";position:absolute;right:-55px;top:-55px;width:170px;height:170px;border:1px solid rgba(182,150,255,.35);border-radius:50%}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px}
.panel-title{font-weight:800;font-size:15px}
.status{font-size:11px;color:var(--lime);border:1px solid var(--line-strong);padding:3px 8px;border-radius:5px}
.panel-list{display:grid;gap:12px;margin-top:20px}
.panel-row{display:grid;grid-template-columns:42px 1fr auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.panel-row:last-child{border-bottom:0}
.panel-row strong{display:block;font-size:14px}
.panel-row small{display:block;color:var(--soft);font-size:12px;margin-top:2px}
.panel-number{color:var(--pink);font-weight:900;font-size:13px}
.panel-tag{padding:3px 8px;border:1px solid var(--line);color:var(--muted);font-size:11px;border-radius:5px}
.info-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--deep);padding:16px 0}
.info-strip .container{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.info-item{color:var(--muted);font-size:13px;display:flex;align-items:center;gap:9px}
.info-item b{color:var(--lime);font-size:16px}
section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
.section-head h2{font-size:clamp(28px,3.5vw,40px);line-height:1.25;margin:12px 0 0;letter-spacing:-.03em}
.section-desc{max-width:530px;color:var(--muted);margin:0;font-size:15px}
.filter-box{background:var(--deep);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;margin-bottom:24px}
.filter-label{font-size:13px;color:var(--soft);margin-bottom:11px}
.filter-row{display:flex;gap:9px;overflow:auto;padding-bottom:2px}
.filter-row a{white-space:nowrap;padding:8px 14px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px;transition:.2s}
.filter-row a:hover,.filter-row a.active{color:#171019;background:var(--lime);border-color:var(--lime)}
.feature-layout{display:grid;grid-template-columns:1.25fr .75fr;grid-template-rows:1fr 1fr;gap:16px}
.category-card{position:relative;min-height:205px;padding:25px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.25s}
.category-card:first-child{grid-row:span 2;min-height:426px}
.category-card::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 15px,rgba(182,150,255,.05) 16px 17px);pointer-events:none}
.category-card:hover{border-color:var(--pink);transform:translateY(-4px);box-shadow:var(--shadow)}
.category-card>*{position:relative}
.card-index{font-size:12px;color:var(--lime);font-weight:900;letter-spacing:.1em}
.card-art{height:120px;margin:24px 0;background:#1d1221;border:1px solid var(--line);position:relative;overflow:hidden}
.card-art::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 20%,rgba(240,91,168,.35) 21% 24%,transparent 25% 49%,rgba(215,255,63,.18) 50% 52%,transparent 53%),radial-gradient(circle at 75% 35%,rgba(182,150,255,.38),transparent 30%)}
.feature .card-art{height:220px}
.card-label{display:inline-block;color:var(--pink);font-size:12px;border-left:2px solid var(--pink);padding-left:8px;margin-bottom:9px}
.category-card h3{font-size:22px;margin:0 0 8px}
.category-card p{color:var(--muted);font-size:14px;line-height:1.75;margin:0 0 18px}
.card-link{color:var(--lime);font-size:13px;font-weight:800}
.card-link span{display:inline-block;margin-left:7px;transition:.2s}
.category-card:hover .card-link span{transform:translateX(5px)}
.browse-path{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.path-step{padding:25px;border-right:1px solid var(--line);position:relative}
.path-step:last-child{border-right:0}
.path-num{color:var(--pink);font-size:13px;font-weight:900}
.path-step h3{font-size:18px;margin:8px 0}
.path-step p{font-size:14px;color:var(--muted);margin:0}
.notice{display:grid;grid-template-columns:60px 1fr;gap:18px;align-items:start;background:var(--deep);border:1px solid var(--line-strong);border-left:3px solid var(--lime);border-radius:var(--radius-md);padding:24px}
.notice-icon{width:48px;height:48px;border:1px solid var(--pink);color:var(--pink);display:grid;place-items:center;border-radius:10px;font-size:22px}
.notice h3{margin:0 0 7px;font-size:19px}
.notice p{color:var(--muted);font-size:14px;margin:0;line-height:1.8}
.faq-list{display:grid;gap:10px;max-width:880px}
details{background:var(--deep);border:1px solid var(--line);border-radius:var(--radius-md);padding:0 20px;transition:.2s}
details[open]{border-color:rgba(240,91,168,.55)}
summary{cursor:pointer;list-style:none;padding:18px 28px 18px 0;font-weight:700;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:3px;color:var(--lime);font-size:22px;top:14px}
details[open] summary::after{content:"−"}
details p{color:var(--muted);font-size:14px;margin:0;padding:0 0 18px;line-height:1.8}
.cta{padding:60px 0}
.cta-box{position:relative;overflow:hidden;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--pink);border-radius:var(--radius-xl);padding:42px 46px;display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-box::after{content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:220px;border:1px solid rgba(215,255,63,.3);transform:skew(-28deg)}
.cta-box>*{position:relative;z-index:1}
.cta-box h2{font-size:clamp(26px,3vw,38px);margin:0 0 10px}
.cta-box p{color:var(--muted);margin:0;max-width:650px;font-size:15px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
footer{border-top:1px solid var(--line);background:#120c15;padding:52px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px}
.footer-brand{font-size:19px;font-weight:900;margin-bottom:12px}
.footer-grid p{color:var(--soft);font-size:13px;line-height:1.8;margin:0}
.footer-grid h3{font-size:14px;color:var(--text);margin:0 0 13px}
.footer-grid a{display:block;color:var(--soft);font-size:13px;margin:7px 0;transition:.2s}
.footer-grid a:hover{color:var(--lime)}
.copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);margin-top:35px;padding-top:18px;color:var(--soft);font-size:12px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
@media(max-width:900px){
 .brand{min-width:auto}.nav-action{display:none}.hero-grid{grid-template-columns:1fr;gap:35px}.feature-layout{grid-template-columns:1fr 1fr}.category-card:first-child{grid-row:auto;grid-column:span 2}.footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
 .container{width:min(100% - 32px,var(--container))}.site-header{height:68px}.menu-toggle{display:block}
 .main-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;background:#120c15;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}
 .main-nav.open{display:flex}.main-nav a{padding:12px 14px}.brand-text{font-size:14px}
 .hero{padding:34px 0 40px}h1{font-size:36px}.hero-copy{font-size:16px}.hero-actions>*{flex:1 1 100%}
 section{padding:62px 0}.section-head{display:block}.section-desc{margin-top:15px}
 .feature-layout{display:block}.category-card,.category-card:first-child{min-height:0;margin-bottom:14px}.feature .card-art,.card-art{height:150px}
 .browse-path{display:block}.path-step{border-right:0;border-bottom:1px solid var(--line)}.path-step:last-child{border-bottom:0}
 .notice{grid-template-columns:1fr}.cta-box{display:block;padding:30px 24px}.cta-actions{margin-top:24px}.cta-actions>*{flex:1 1 100%}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.copyright{display:block}.copyright span{display:block;margin-top:5px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category2 */
:root{
 --bg:#160F19;--deep:#211522;--panel:#2A1B2A;--panel-2:#342238;
 --lime:#D7FF3F;--pink:#F05BA8;--lav:#B696FF;--text:#FAF7F4;
 --muted:#C9BEC8;--soft:#978A97;--line:rgba(255,255,255,.11);
 --line-strong:rgba(215,255,63,.42);--radius-xl:20px;--radius-lg:16px;
 --radius-md:14px;--radius-sm:10px;--shadow:0 18px 50px rgba(4,0,10,.28);
 --container:1200px;
}
*{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 SC",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.18;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,black,transparent 82%)}
a{color:inherit;text-decoration:none}
button,input{font:inherit}button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:30;height:74px;background:rgba(22,15,25,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:245px}
.brand-mark{width:34px;height:34px;display:grid;place-items:center;color:var(--bg);background:var(--lime);font-weight:900;border-radius:8px;box-shadow:4px 4px 0 var(--pink)}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.02em;line-height:1.25}
.brand-sub{display:block;margin-top:3px;color:var(--soft);font-size:11px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav a{position:relative;padding:9px 14px;border-radius:8px;color:var(--muted);font-size:14px;transition:.2s ease}
.main-nav a:hover,.main-nav a.active{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.active::before{content:"";position:absolute;right:14px;bottom:2px;left:14px;height:2px;background:var(--lime)}
.nav-action,.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 18px;border:1px solid var(--lime);border-radius:var(--radius-sm);background:var(--lime);color:#171019;font-size:14px;font-weight:800;transition:.2s ease}
.nav-action:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 9px 22px rgba(215,255,63,.16)}
.nav-action:active,.btn-primary:active{transform:none;box-shadow:none}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 18px;border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.025);color:var(--text);font-size:14px;font-weight:700;transition:.2s ease}
.btn-secondary:hover{transform:translateY(-2px);border-color:var(--pink);background:rgba(240,91,168,.1)}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--text)}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.breadcrumb{padding:18px 0 0;color:var(--soft);font-size:13px}
.breadcrumb ol{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .current{color:var(--muted)}
.page-hero{padding:42px 0 46px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 335px;gap:44px;align-items:end}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
.eyebrow::before,.section-kicker::before{content:"";width:22px;height:2px;background:var(--pink)}
h1{max-width:760px;margin:13px 0 16px;font-size:clamp(34px,5vw,54px);line-height:1.16;letter-spacing:-.045em}
.hero-copy{max-width:730px;margin:0;color:var(--muted);font-size:17px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}
.index-radar{position:relative;overflow:hidden;padding:25px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)}
.index-radar::before{content:"";position:absolute;inset:-30%;background:repeating-radial-gradient(circle,transparent 0 29px,rgba(182,150,255,.12) 30px 31px);opacity:.65}
.index-radar>*{position:relative}
.radar-top{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(215,255,63,.09)}
.radar-number{margin:27px 0 2px;font-size:54px;line-height:1;color:var(--lime);font-weight:900;letter-spacing:-.06em}
.radar-label{margin:0;color:var(--muted);font-size:14px}
.radar-lines{display:grid;gap:10px;margin-top:23px}
.radar-line{display:grid;grid-template-columns:1fr 72px;gap:12px;align-items:center;color:var(--soft);font-size:12px}
.radar-line i{height:6px;background:linear-gradient(90deg,var(--pink),var(--lav));border-radius:99px;opacity:.8}
main{padding-bottom:82px}
.content-layout{display:grid;grid-template-columns:276px minmax(0,1fr);gap:32px;align-items:start}
.side-nav{position:sticky;top:98px;padding:20px;background:var(--deep);border:1px solid var(--line);border-radius:var(--radius-lg)}
.side-nav h2{margin:0 0 12px;font-size:16px}
.side-nav p{margin:0 0 15px;color:var(--soft);font-size:13px;line-height:1.7}
.anchor-list{display:grid;gap:5px;margin:0;padding:0;list-style:none}
.anchor-list a{display:flex;align-items:center;gap:10px;padding:10px;border-left:2px solid transparent;color:var(--muted);font-size:14px;transition:.2s}
.anchor-list a::before{content:"";width:6px;height:6px;background:var(--lav);border-radius:50%}
.anchor-list a:hover{border-left-color:var(--lime);background:rgba(255,255,255,.04);color:var(--text)}
.side-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:19px;padding-top:16px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;padding:4px 8px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:11px;line-height:1.4}
.return-link{display:flex;align-items:center;justify-content:center;min-height:42px;margin-top:20px;border:1px solid rgba(240,91,168,.45);border-radius:var(--radius-sm);color:var(--text);font-size:13px;font-weight:700;transition:.2s}
.return-link:hover{background:rgba(240,91,168,.1);border-color:var(--pink)}
.content-flow{display:grid;gap:20px}
.path-card{position:relative;overflow:hidden;padding:27px 28px;background:var(--panel-2);border:1px solid var(--line-strong);border-radius:var(--radius-lg)}
.path-card::after{content:"";position:absolute;right:-45px;bottom:-65px;width:220px;height:220px;border:1px solid rgba(215,255,63,.26);border-radius:50%}
.path-card h2{position:relative;margin:9px 0 6px;font-size:25px;line-height:1.35}
.path-card p{position:relative;max-width:670px;margin:0;color:var(--muted);font-size:14px}
.path-track{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:13px;margin-top:21px}
.path-step{padding:12px 13px;background:rgba(22,15,25,.58);border:1px solid var(--line);border-radius:10px}
.path-step b{display:block;color:var(--lime);font-size:12px}
.path-step span{display:block;margin-top:3px;color:var(--muted);font-size:13px;line-height:1.5}
.topic-section{scroll-margin-top:105px;padding:28px;background:var(--deep);border:1px solid var(--line);border-radius:var(--radius-lg)}
.topic-head{display:grid;grid-template-columns:66px 1fr;gap:17px;align-items:start;margin-bottom:20px}
.topic-no{display:grid;place-items:center;width:58px;height:58px;border:1px solid rgba(240,91,168,.55);border-radius:12px;background:rgba(240,91,168,.08);color:var(--pink);font-size:17px;font-weight:900}
.topic-head h2{margin:0;font-size:26px;line-height:1.3}
.topic-head p{margin:6px 0 0;color:var(--muted);font-size:14px;line-height:1.75}
.entry-list{display:grid;gap:10px}
.entry{display:grid;grid-template-columns:75px minmax(0,1fr) 24px;gap:15px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--panel);transition:.2s}
.entry:hover{transform:translateX(3px);border-color:rgba(215,255,63,.6)}
.thumb{position:relative;overflow:hidden;width:75px;height:62px;border:1px solid rgba(255,255,255,.12);border-radius:9px;background:linear-gradient(135deg,#4a2345,#221a38)}
.thumb::before{content:"";position:absolute;inset:11px 13px;border:1px solid rgba(215,255,63,.48);border-radius:50% 50% 12px 12px;transform:rotate(-18deg)}
.thumb.pink{background:linear-gradient(135deg,#51202f,#332042)}
.thumb.lav{background:linear-gradient(135deg,#33274e,#43213e)}
.entry-info small{display:block;margin-bottom:2px;color:var(--lav);font-size:11px;font-weight:800;letter-spacing:.05em}
.entry-info h3{margin:0;font-size:16px;line-height:1.45}
.entry-info p{margin:3px 0 0;color:var(--soft);font-size:12px;line-height:1.6}
.entry-arrow{color:var(--lime);font-size:20px;transition:.2s}.entry:hover .entry-arrow{transform:translateX(3px)}
.notice{display:grid;grid-template-columns:48px 1fr;gap:16px;padding:24px 26px;background:#281b2c;border:1px solid rgba(182,150,255,.45);border-radius:var(--radius-lg)}
.notice-icon{display:grid;place-items:center;width:45px;height:45px;border:1px solid var(--lav);border-radius:10px;color:var(--lav);font-size:22px}
.notice h2{margin:0 0 7px;font-size:21px}.notice p{margin:0;color:var(--muted);font-size:14px}
.faq-area{padding:66px 0 0}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:25px}
.section-head h2{margin:9px 0 0;font-size:clamp(27px,3.5vw,38px);line-height:1.25;letter-spacing:-.03em}
.section-desc{max-width:500px;margin:0;color:var(--muted);font-size:14px}
.faq-list{display:grid;gap:10px}
details{padding:0 20px;background:var(--deep);border:1px solid var(--line);border-radius:var(--radius-md);transition:.2s}
details[open]{border-color:rgba(182,150,255,.55);background:var(--panel)}
summary{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:62px;cursor:pointer;font-size:15px;font-weight:700;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--lime);font-size:22px;font-weight:400}
details[open] summary::after{content:"−"}
details p{margin:0;padding:0 0 18px;color:var(--muted);font-size:14px}
.cta{margin-top:70px;position:relative;overflow:hidden;padding:43px;background:var(--panel-2);border:1px solid var(--line-strong);border-radius:var(--radius-xl)}
.cta::before{content:"";position:absolute;top:-20px;left:-4%;width:44%;height:2px;background:var(--lime);transform:rotate(-5deg)}
.cta-grid{position:relative;display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta h2{margin:8px 0;font-size:30px;line-height:1.25}.cta p{max-width:660px;margin:0;color:var(--muted);font-size:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px;flex-shrink:0}
footer{padding:42px 0 24px;background:#110b13;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.footer-brand{font-size:18px;font-weight:900}.footer-grid p{margin:8px 0 0;color:var(--soft);font-size:13px;line-height:1.75}
.footer-grid h3{margin:0 0 9px;color:var(--muted);font-size:13px}
.footer-grid a{display:block;margin:6px 0;color:var(--soft);font-size:13px;transition:.2s}.footer-grid a:hover{color:var(--lime)}
.copyright{display:flex;justify-content:space-between;gap:16px;margin-top:31px;padding-top:17px;border-top:1px solid var(--line);color:var(--soft);font-size:12px}
@media(max-width:960px){
 .brand{min-width:auto}.nav-action{display:none}.hero-grid{grid-template-columns:1fr 285px;gap:28px}
 .content-layout{grid-template-columns:1fr}.side-nav{position:relative;top:auto;display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center}.side-nav p,.side-tags{display:none}
 .anchor-list{display:flex;overflow:auto;grid-column:1/-1}.anchor-list a{white-space:nowrap}.return-link{margin:0}
}
@media(max-width:720px){
 .container{width:min(100% - 32px,var(--container))}.site-header{height:66px}.brand-text{font-size:14px}.brand-sub{display:none}
 .menu-toggle{display:grid;place-items:center}.main-nav{display:none;position:absolute;top:66px;right:16px;left:16px;padding:12px;background:var(--deep);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
 .main-nav.open{display:grid}.main-nav a{padding:12px}.breadcrumb{padding-top:14px}.page-hero{padding:31px 0 35px}.hero-grid{grid-template-columns:1fr}.index-radar{display:none}
 h1{font-size:36px}.hero-copy{font-size:15px}.hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.btn-primary,.btn-secondary{width:100%}
 .path-track{grid-template-columns:1fr}.topic-section{padding:21px 16px}.topic-head{grid-template-columns:52px 1fr;gap:12px}.topic-no{width:48px;height:48px}.topic-head h2{font-size:21px}
 .entry{grid-template-columns:60px minmax(0,1fr) 18px;gap:11px}.thumb{width:60px;height:56px}.entry-info h3{font-size:14px}.entry-info p{display:none}
 .notice{grid-template-columns:1fr;padding:20px}.section-head{display:block}.section-desc{margin-top:13px}.cta{padding:31px 21px}.cta-grid{display:block}.cta h2{font-size:25px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin:4px 0}
}
@media(max-width:420px){.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.topic-head{grid-template-columns:1fr}.side-nav{display:block}.return-link{margin-top:14px}.anchor-list{margin-top:13px}.hero-actions{margin-top:21px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}