/* roulang page: index */
:root{
  --ink:#1d2030;
  --muted:#667085;
  --paper:#ffffff;
  --canvas:#f7f8fc;
  --violet:#6d45d8;
  --violet-dark:#4e2ba7;
  --violet-soft:#f0ecff;
  --rose:#e66b92;
  --line:#e7e8f0;
  --night:#171526;
  --shadow:0 18px 48px rgba(27,23,55,.09);
  --shadow-soft:0 8px 25px rgba(27,23,55,.06);
  --radius:18px;
  --radius-lg:28px;
  --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--canvas);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{cursor:pointer}
::selection{background:#dcd0ff;color:#28156a}
.container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:blur(16px);border-bottom:1px solid rgba(231,232,240,.85);
}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:850;font-size:20px;letter-spacing:-.04em;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:linear-gradient(145deg,#8c67ee,#5430b5);
  display:grid;place-items:center;box-shadow:0 8px 18px rgba(109,69,216,.25)
}
.brand-mark span{width:13px;height:13px;border:2px solid #fff;border-radius:50%;position:relative}
.brand-mark span:after{content:"";position:absolute;width:5px;height:2px;background:#fff;right:-4px;bottom:-2px;transform:rotate(45deg);border-radius:2px}
.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:4px}
.nav-links a{
  font-size:14px;color:#56576a;font-weight:650;padding:9px 11px;border-radius:10px;
  transition:background .2s,color .2s,transform .2s;white-space:nowrap;
}
.nav-links a:hover,.nav-links a:focus-visible,.nav-links a.active{color:var(--violet-dark);background:var(--violet-soft);outline:none}
.nav-links a:active{transform:translateY(1px)}
.nav-toggle{display:none;border:0;background:var(--violet-soft);color:var(--violet-dark);width:42px;height:40px;border-radius:11px}
.hero{
  position:relative;isolation:isolate;min-height:570px;display:flex;align-items:center;overflow:hidden;
  background:#282047 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;color:#fff;
}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(20,14,47,.93) 0%,rgba(29,18,68,.8) 47%,rgba(29,18,68,.34) 100%)}
.hero:after{content:"";position:absolute;right:-120px;bottom:-170px;width:520px;height:520px;border-radius:50%;background:rgba(188,156,255,.2);filter:blur(8px);z-index:-1}
.hero-inner{padding:92px 0 90px;max-width:770px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid rgba(255,255,255,.22);
  color:#eee8ff;background:rgba(255,255,255,.11);border-radius:999px;font-size:13px;font-weight:700;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:#cfbaff;box-shadow:0 0 0 4px rgba(207,186,255,.18)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(39px,5.3vw,68px);line-height:1.12;letter-spacing:-.065em;margin:20px 0 22px;font-weight:900}
.hero p{font-size:18px;line-height:1.85;max-width:680px;color:#e7e1f8;margin-bottom:29px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;justify-content:center;align-items:center;gap:9px;border:1px solid transparent;border-radius:12px;
  min-height:47px;padding:0 19px;font-size:15px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s;
}
.btn-primary{background:#fff;color:var(--violet-dark);box-shadow:0 10px 20px rgba(0,0,0,.14)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(0,0,0,.2)}
.btn-secondary{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.08)}
.btn-secondary:hover{background:rgba(255,255,255,.17);transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid #cbbcff;outline-offset:3px}
.hero-note{display:flex;align-items:center;gap:9px;margin-top:28px;color:#d8d2ea;font-size:13px}
.hero-note b{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:rgba(255,255,255,.16);font-size:12px}
.section{padding:94px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-kicker{font-size:13px;letter-spacing:.08em;color:var(--violet);font-weight:850;margin-bottom:8px}
.section h2{font-size:clamp(29px,3.6vw,45px);line-height:1.2;letter-spacing:-.05em;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.trust-strip{margin-top:-33px;position:relative;z-index:2}
.trust-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);
  padding:21px 28px;display:grid;grid-template-columns:repeat(3,1fr);
}
.trust-item{display:flex;align-items:center;gap:14px;padding:3px 20px;border-right:1px solid var(--line)}
.trust-item:last-child{border-right:0}
.icon-ball{flex:0 0 42px;width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:var(--violet-soft);color:var(--violet-dark);font-size:19px;font-weight:900}
.trust-item strong{display:block;font-size:15px}
.trust-item span{display:block;font-size:13px;color:var(--muted);margin-top:1px}
.topic-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.topic-card{
  position:relative;min-height:260px;border-radius:var(--radius);overflow:hidden;background:#29243c;color:#fff;
  padding:22px;display:flex;align-items:flex-end;isolation:isolate;box-shadow:var(--shadow-soft);transition:transform .25s,box-shadow .25s;
}
.topic-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.topic-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .45s}
.topic-card:hover img{transform:scale(1.06)}
.topic-card:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(14,10,30,.06),rgba(14,10,30,.88))}
.topic-card .mini{font-size:12px;color:#eeeaff;font-weight:700}
.topic-card h3{font-size:20px;line-height:1.28;letter-spacing:-.04em;margin:5px 0 0}
.topic-card .arrow{display:inline-grid;place-items:center;margin-top:13px;width:29px;height:29px;border-radius:50%;background:rgba(255,255,255,.17);font-size:18px}
.feature-layout{display:grid;grid-template-columns:1.02fr .98fr;gap:66px;align-items:center}
.image-stack{position:relative;padding:0 36px 34px 0}
.image-stack img{border-radius:var(--radius-lg);height:440px;width:100%;object-fit:cover;box-shadow:var(--shadow)}
.image-stack:after{content:"";position:absolute;z-index:-1;right:0;bottom:0;width:68%;height:68%;border-radius:var(--radius-lg);background:var(--violet-soft)}
.floating-note{
  position:absolute;left:28px;bottom:11px;max-width:280px;padding:16px 18px;background:#fff;
  border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-soft);font-size:14px;font-weight:750;
}
.floating-note span{display:block;color:var(--muted);font-size:12px;font-weight:500;margin-top:2px}
.check-list{list-style:none;margin:25px 0 0;padding:0;display:grid;gap:13px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:#46485a}
.check-list b{width:22px;height:22px;flex:0 0 22px;border-radius:7px;display:grid;place-items:center;background:var(--violet-soft);color:var(--violet-dark);font-size:13px;margin-top:2px}
.latest{background:#fff}
.latest-layout{display:grid;grid-template-columns:1fr 285px;gap:28px;align-items:start}
.post-list{border-top:1px solid var(--line)}
.post-row{display:grid;grid-template-columns:130px 1fr auto;gap:22px;align-items:center;padding:20px 4px;border-bottom:1px solid var(--line);transition:padding .2s}
.post-row:hover{padding-left:11px;padding-right:11px;background:#fbfaff}
.post-meta{font-size:13px;color:var(--violet);font-weight:800}
.post-main h3{margin:0 0 5px;font-size:18px;line-height:1.35;letter-spacing:-.025em}
.post-main p{margin:0;color:var(--muted);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.post-link{color:var(--violet-dark);font-weight:850;font-size:14px;white-space:nowrap}
.empty-message{padding:28px 0;color:var(--muted);font-size:15px}
.side-panel{padding:25px;background:var(--night);border-radius:var(--radius);color:#fff}
.side-panel .section-kicker{color:#bda7ff}
.side-panel h3{font-size:23px;line-height:1.3;margin:8px 0 11px;letter-spacing:-.04em}
.side-panel p{font-size:14px;color:#d0cbdc;margin:0 0 20px}
.side-panel .btn{width:100%;background:#8f69ef;color:#fff}
.side-panel .btn:hover{background:#a17efa;transform:translateY(-2px)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;transition:transform .2s,box-shadow .2s}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-soft)}
.step-no{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;color:var(--violet-dark);background:var(--violet-soft);font-weight:900;margin-bottom:24px}
.step h3{font-size:19px;margin-bottom:7px;letter-spacing:-.03em}
.step p{color:var(--muted);font-size:14px;margin:0}
.notice-box{
  display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;padding:39px 44px;border-radius:var(--radius-lg);
  background:#f0ecff;border:1px solid #e0d7ff;
}
.notice-box h2{margin-bottom:10px;font-size:31px}
.notice-box p{color:#5c5780;margin:0}
.notice-points{display:grid;gap:10px}
.notice-points span{padding:11px 13px;background:rgba(255,255,255,.65);border-radius:10px;font-size:14px;font-weight:700;color:#514a72}
.faq-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:60px;align-items:start}
.faq-intro p{color:var(--muted);margin-bottom:22px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;padding:20px 0;border:0;background:transparent;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:18px;color:var(--ink);font-weight:800;font-size:16px}
.faq-q span:last-child{font-size:24px;color:var(--violet);font-weight:400;transition:transform .2s}
.faq-a{display:none;padding:0 36px 20px 0;color:var(--muted);font-size:14px}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
.cta{padding:0 0 94px}
.cta-box{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:55px 52px;background:#332062 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;color:#fff;isolation:isolate;
}
.cta-box:after{content:"";position:absolute;inset:0;background:rgba(39,21,79,.82);z-index:-1}
.cta-box h2{font-size:clamp(28px,3.5vw,42px);line-height:1.2;letter-spacing:-.05em;margin-bottom:12px}
.cta-box p{max-width:700px;color:#e4ddf6;margin-bottom:25px}
.cta-box .btn-primary{background:#fff;color:var(--violet-dark)}
.site-footer{background:var(--night);color:#fff;padding:54px 0 25px}
.footer-top{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand p{color:#beb8cf;font-size:14px;max-width:430px;margin:16px 0 0}
.footer-nav{display:grid;grid-template-columns:repeat(2,1fr);gap:9px 24px;align-content:start}
.footer-nav a{color:#d7d2e2;font-size:14px;padding:3px 0;transition:color .2s}
.footer-nav a:hover{color:#c3aaff}
.footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:21px;color:#9f98b3;font-size:13px}
@media(max-width:1024px){
  .nav-links a{padding:8px 7px;font-size:13px}
  .topic-grid{grid-template-columns:repeat(3,1fr)}
  .topic-card{min-height:220px}
  .feature-layout,.faq-wrap{gap:38px}
}
@media(max-width:768px){
  .container{width:min(calc(100% - 32px),var(--container))}
  .nav-wrap{height:68px}
  .nav-toggle{display:block}
  .nav-links{
    display:none;position:absolute;left:16px;right:16px;top:60px;padding:10px;background:#fff;
    border:1px solid var(--line);box-shadow:var(--shadow);border-radius:15px;flex-direction:column;align-items:stretch;
  }
  .nav-links.show{display:flex}
  .nav-links a{padding:11px 13px}
  .hero{min-height:545px;background-position:62% center}
  .hero-inner{padding:75px 0}
  .hero p{font-size:16px}
  .trust-box{grid-template-columns:1fr;padding:10px 18px}
  .trust-item{padding:13px 0;border-right:0;border-bottom:1px solid var(--line)}
  .trust-item:last-child{border-bottom:0}
  .section{padding:68px 0}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .feature-layout,.latest-layout,.notice-box,.faq-wrap{grid-template-columns:1fr}
  .image-stack{max-width:600px}
  .steps{grid-template-columns:1fr}
  .post-row{grid-template-columns:1fr;gap:6px;padding:18px 0}
  .post-main p{white-space:normal}
  .post-link{margin-top:4px}
  .notice-box{padding:30px 25px}
  .cta{padding-bottom:68px}
  .cta-box{padding:39px 28px}
  .footer-top{grid-template-columns:1fr;gap:27px}
}
@media(max-width:520px){
  .brand{font-size:18px}
  .hero-inner{padding:62px 0}
  h1{font-size:38px}
  .hero-actions,.hero-actions .btn{width:100%}
  .topic-grid{grid-template-columns:1fr}
  .topic-card{min-height:210px}
  .section-head{margin-bottom:28px}
  .image-stack{padding-right:18px;padding-bottom:20px}
  .image-stack img{height:320px}
  .floating-note{left:14px;bottom:0;right:0}
  .footer-bottom{flex-direction:column}
  .footer-nav{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
      --ink:#17212b;
      --muted:#65717d;
      --soft:#f5f7f8;
      --paper:#ffffff;
      --line:#dce3e7;
      --brand:#b53b4a;
      --brand-dark:#8e2836;
      --accent:#e8a34c;
      --night:#17222d;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 16px 42px rgba(21,34,45,.10);
      --shadow-hover:0 24px 52px rgba(21,34,45,.16);
      --container:1180px;
      --transition:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--soft);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      font-size:16px;
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),border-color var(--transition),transform var(--transition),box-shadow var(--transition)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(232,163,76,.7);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      position:sticky;
      z-index:50;
      top:0;
      background:rgba(255,255,255,.94);
      border-bottom:1px solid rgba(220,227,231,.9);
      backdrop-filter:blur(16px);
    }
    .nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;font-size:18px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .brand:hover{color:var(--brand)}
    .brand-mark{
      display:grid;
      place-items:center;
      width:30px;
      height:30px;
      border-radius:10px;
      background:var(--brand);
      box-shadow:0 7px 16px rgba(181,59,74,.28);
    }
    .brand-mark span{width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:10px solid #fff;margin-left:3px}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:4px}
    .nav-links a{
      padding:9px 11px;
      border-radius:9px;
      color:#4c5965;
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .nav-links a:hover,.nav-links a.active{color:var(--brand);background:#fff1f2}
    .nav-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--line);
      border-radius:11px;
      background:#fff;
      color:var(--ink);
      font-size:20px;
    }
    .article-hero{
      position:relative;
      overflow:hidden;
      padding:72px 0 80px;
      color:#fff;
      background:
        linear-gradient(90deg,rgba(18,29,39,.95) 0%,rgba(18,29,39,.82) 54%,rgba(18,29,39,.55) 100%),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }
    .article-hero:after{
      content:"";
      position:absolute;
      width:470px;
      height:470px;
      right:-120px;
      top:-220px;
      border:1px solid rgba(255,255,255,.16);
      border-radius:50%;
      box-shadow:0 0 0 52px rgba(255,255,255,.035),0 0 0 105px rgba(255,255,255,.025);
      pointer-events:none;
    }
    .breadcrumb{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:rgba(255,255,255,.73);font-size:14px}
    .breadcrumb a:hover{color:#fff}
    .breadcrumb b{font-weight:400;color:rgba(255,255,255,.45)}
    .article-hero-inner{position:relative;z-index:1;max-width:890px;margin-top:28px}
    .article-label{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:6px 12px;
      border:1px solid rgba(255,255,255,.22);
      border-radius:999px;
      color:#ffe2a9;
      background:rgba(0,0,0,.14);
      font-size:13px;
      font-weight:700;
    }
    .article-label:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(232,163,76,.17)}
    h1{max-width:860px;margin:17px 0 18px;font-size:clamp(32px,5vw,54px);line-height:1.2;letter-spacing:-.05em}
    .hero-summary{max-width:760px;margin:0;color:rgba(255,255,255,.83);font-size:17px;line-height:1.85}
    .article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;color:rgba(255,255,255,.7);font-size:14px}
    .article-meta span{display:inline-flex;align-items:center;gap:7px}
    .article-meta i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent)}
    main{padding:52px 0 78px}
    .reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 294px;gap:34px;align-items:start}
    .article-shell{
      overflow:hidden;
      padding:clamp(26px,4vw,52px);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:var(--paper);
      box-shadow:var(--shadow);
    }
    .article-topline{display:flex;align-items:center;justify-content:space-between;gap:15px;padding-bottom:20px;margin-bottom:28px;border-bottom:1px solid var(--line)}
    .article-topline strong{font-size:14px;letter-spacing:.04em}
    .article-topline span{color:var(--muted);font-size:13px}
    .article-content{font-size:17px;line-height:2;color:#2a3640;overflow-wrap:anywhere}
    .article-content>*:first-child{margin-top:0}
    .article-content>*:last-child{margin-bottom:0}
    .article-content h2,.article-content h3{color:var(--ink);line-height:1.38;letter-spacing:-.025em}
    .article-content h2{margin:2.2em 0 .75em;padding-left:15px;border-left:4px solid var(--brand);font-size:26px}
    .article-content h3{margin:1.7em 0 .65em;font-size:21px}
    .article-content p{margin:0 0 1.25em}
    .article-content a{color:var(--brand);font-weight:700;text-decoration:underline;text-decoration-color:rgba(181,59,74,.35);text-underline-offset:3px}
    .article-content a:hover{color:var(--brand-dark)}
    .article-content ul,.article-content ol{margin:0 0 1.45em;padding-left:1.5em}
    .article-content li{padding-left:.25em;margin:.45em 0}
    .article-content blockquote{
      margin:1.7em 0;
      padding:20px 22px;
      border-left:4px solid var(--accent);
      border-radius:0 var(--radius-sm) var(--radius-sm) 0;
      background:#fff8ec;
      color:#4c422e;
    }
    .article-content img{width:100%;height:auto;margin:1.7em 0;border-radius:var(--radius);box-shadow:0 10px 28px rgba(20,31,40,.12)}
    .article-content table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:1.5em 0}
    .article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);text-align:left}
    .article-content th{background:#f6f8f9;color:var(--ink)}
    .notice{
      display:flex;
      gap:14px;
      margin-top:38px;
      padding:20px;
      border:1px solid #f0d9ac;
      border-radius:var(--radius-sm);
      background:#fff9ed;
      color:#5d4b28;
      font-size:14px;
      line-height:1.7;
    }
    .notice-icon{display:grid;place-items:center;flex:0 0 27px;width:27px;height:27px;border-radius:50%;background:#e8a34c;color:#fff;font-weight:900}
    .side-stack{display:grid;gap:18px}
    .side-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 25px rgba(20,32,42,.05)}
    .side-card h2{margin:0 0 12px;font-size:18px;line-height:1.4;letter-spacing:-.02em}
    .side-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
    .side-links{display:grid;gap:7px;margin-top:15px}
    .side-links a{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid #edf0f2;color:#34414c;font-size:14px;font-weight:700}
    .side-links a:last-child{border-bottom:0}
    .side-links a:after{content:"→";color:var(--brand);font-size:18px}
    .side-links a:hover{padding-left:5px;color:var(--brand)}
    .age-card{color:#fff;background:var(--night);border-color:var(--night)}
    .age-card h2{color:#fff}
    .age-card p{color:rgba(255,255,255,.72)}
    .age-mark{display:inline-grid;place-items:center;width:40px;height:40px;margin-bottom:14px;border-radius:12px;background:rgba(232,163,76,.18);color:#ffcd83;font-weight:900}
    .share-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
    .share-line span{margin-right:auto;color:var(--muted);font-size:14px;font-weight:700}
    .chip{padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#52606b;font-size:13px;font-weight:700}
    .chip:hover{border-color:var(--brand);color:var(--brand);background:#fff4f5}
    .empty-state{text-align:center;padding:30px 0}
    .empty-state h2{margin:0 0 10px;font-size:28px}
    .empty-state p{margin:0 0 22px;color:var(--muted)}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:11px 18px;
      border:1px solid transparent;
      border-radius:12px;
      background:var(--brand);
      color:#fff;
      font-size:15px;
      font-weight:800;
      box-shadow:0 8px 17px rgba(181,59,74,.2);
    }
    .btn:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 22px rgba(181,59,74,.28)}
    .continue-section{padding:0 0 76px}
    .continue-box{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:30px;
      align-items:center;
      overflow:hidden;
      padding:38px 42px;
      border-radius:var(--radius-lg);
      color:#fff;
      background:linear-gradient(115deg,#963240,#c75261);
      box-shadow:var(--shadow);
    }
    .continue-box h2{margin:0 0 10px;font-size:clamp(25px,3vw,34px);line-height:1.25;letter-spacing:-.04em}
    .continue-box p{margin:0;color:rgba(255,255,255,.82)}
    .continue-actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:11px}
    .btn-light{background:#fff;color:var(--brand);box-shadow:none}
    .btn-light:hover{background:#fff6f6;color:var(--brand-dark);box-shadow:0 10px 22px rgba(50,12,18,.2)}
    .site-footer{padding:52px 0 20px;color:#c8d0d6;background:#15202a}
    .footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:46px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand{color:#fff}
    .footer-brand .brand-mark{display:none}
    .footer-brand p{max-width:340px;margin:14px 0 0;color:#9ba8b2;font-size:14px;line-height:1.8}
    .footer-title{margin:0 0 13px;color:#fff;font-size:15px}
    .footer-list{display:grid;gap:8px}
    .footer-list a{color:#aeb8c0;font-size:14px}
    .footer-list a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;padding-top:18px;color:#8997a2;font-size:13px}
    @media (max-width:1024px){
      .nav-links a{padding:8px 7px;font-size:13px}
      .reading-layout{grid-template-columns:minmax(0,1fr) 245px;gap:22px}
      .side-card{padding:20px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--container))}
      .nav-wrap{min-height:68px}
      .nav-toggle{display:block}
      .nav-links{
        display:none;
        position:absolute;
        top:68px;
        left:16px;
        right:16px;
        padding:10px;
        border:1px solid var(--line);
        border-radius:16px;
        background:#fff;
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:grid}
      .nav-links a{padding:11px 12px;font-size:14px}
      .article-hero{padding:48px 0 54px}
      .hero-summary{font-size:16px}
      main{padding:32px 0 52px}
      .reading-layout{grid-template-columns:1fr}
      .side-stack{grid-template-columns:1fr 1fr}
      .article-shell{padding:28px 24px;border-radius:22px}
      .article-content{font-size:16px}
      .continue-box{grid-template-columns:1fr;padding:30px}
      .continue-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1.2fr 1fr;gap:30px}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:520px){
      .container{width:min(100% - 28px,var(--container))}
      h1{font-size:32px}
      .article-hero{padding:40px 0 46px}
      .article-meta{gap:7px 15px}
      .article-shell{padding:23px 18px;border-radius:18px}
      .article-topline{align-items:flex-start;flex-direction:column;padding-bottom:16px;margin-bottom:23px}
      .article-content h2{font-size:23px}
      .article-content h3{font-size:19px}
      .side-stack{grid-template-columns:1fr}
      .continue-section{padding-bottom:52px}
      .continue-box{padding:27px 23px;border-radius:21px}
      .continue-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-grid>div:first-child{grid-column:auto}
      .footer-bottom{flex-direction:column;gap:5px}
    }

/* roulang page: category3 */
:root {
      --ink: #172033;
      --muted: #687287;
      --soft: #f5f7fb;
      --panel: #ffffff;
      --line: #e6eaf1;
      --primary: #635bff;
      --primary-dark: #4d46d8;
      --accent: #17b897;
      --accent-soft: #e7fbf5;
      --warm: #fff4e8;
      --radius-lg: 28px;
      --radius-md: 18px;
      --radius-sm: 11px;
      --shadow: 0 20px 60px rgba(26, 35, 66, .10);
      --shadow-sm: 0 10px 26px rgba(26, 35, 66, .07);
      --max: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: #fbfcff;
      font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button, input { font: inherit; }
    button { cursor: pointer; }
    :focus-visible {
      outline: 3px solid rgba(99, 91, 255, .35);
      outline-offset: 3px;
    }

    .container {
      width: min(calc(100% - 48px), var(--max));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid rgba(230, 234, 241, .8);
      background: rgba(255, 255, 255, .88);
      backdrop-filter: blur(18px);
    }
    .nav-wrap {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      letter-spacing: -.03em;
      white-space: nowrap;
    }
    .brand-mark {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      background: linear-gradient(145deg, var(--primary), #938cff);
      box-shadow: 0 8px 20px rgba(99, 91, 255, .27);
    }
    .brand-mark span {
      display: block;
      width: 13px;
      height: 13px;
      border: 3px solid #fff;
      border-radius: 50%;
      position: relative;
    }
    .brand-mark span::after {
      content: "";
      position: absolute;
      right: -7px;
      bottom: -5px;
      width: 8px;
      height: 3px;
      border-radius: 4px;
      background: #fff;
      transform: rotate(45deg);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 5px;
    }
    .nav-links a {
      padding: 10px 13px;
      color: var(--muted);
      border-radius: 10px;
      font-size: 14px;
      transition: .25s ease;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background: #f0efff;
    }
    .nav-toggle {
      display: none;
      border: 0;
      background: transparent;
      color: var(--ink);
      font-size: 24px;
      padding: 8px;
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 96px 0 88px;
      background:
        linear-gradient(110deg, rgba(22, 29, 52, .90), rgba(50, 42, 112, .72)),
        url("/assets/images/backpic/back-2.webp") center/cover;
      color: #fff;
    }
    .hero::after {
      content: "";
      position: absolute;
      width: 430px;
      height: 430px;
      right: -110px;
      top: -170px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .08);
    }
    .hero-content {
      position: relative;
      z-index: 1;
      max-width: 780px;
    }
    .eyebrow, .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .12em;
    }
    .eyebrow::before, .section-kicker::before {
      content: "";
      width: 25px;
      height: 2px;
      background: currentColor;
      border-radius: 2px;
    }
    .hero h1 {
      max-width: 760px;
      margin: 18px 0 18px;
      font-size: clamp(36px, 5vw, 66px);
      line-height: 1.14;
      letter-spacing: -.055em;
    }
    .hero p {
      max-width: 680px;
      margin: 0;
      color: rgba(255,255,255,.78);
      font-size: 17px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 20px;
      border: 1px solid transparent;
      border-radius: 12px;
      font-weight: 750;
      transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 10px 25px rgba(99, 91, 255, .28);
    }
    .btn-primary:hover { background: var(--primary-dark); }
    .btn-light {
      color: #fff;
      border-color: rgba(255,255,255,.25);
      background: rgba(255,255,255,.1);
    }
    .btn-light:hover { background: rgba(255,255,255,.18); }

    .notice-strip {
      margin-top: -28px;
      position: relative;
      z-index: 2;
    }
    .notice-box {
      display: flex;
      align-items: center;
      gap: 17px;
      padding: 22px 25px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--panel);
      box-shadow: var(--shadow-sm);
    }
    .notice-icon {
      flex: 0 0 42px;
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 13px;
      color: #0c8c70;
      background: var(--accent-soft);
      font-weight: 900;
    }
    .notice-box strong { display: block; margin-bottom: 2px; }
    .notice-box p { margin: 0; color: var(--muted); font-size: 14px; }

    .section { padding: 92px 0; }
    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 34px;
    }
    .section-title {
      max-width: 660px;
      margin: 10px 0 0;
      font-size: clamp(28px, 3.5vw, 44px);
      line-height: 1.22;
      letter-spacing: -.045em;
    }
    .section-desc {
      max-width: 500px;
      margin: 0;
      color: var(--muted);
    }

    .protection-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }
    .protection-card {
      padding: 28px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--panel);
      box-shadow: 0 5px 18px rgba(26,35,66,.03);
      transition: .25s ease;
    }
    .protection-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow);
      border-color: #d8d5ff;
    }
    .card-number {
      display: inline-flex;
      width: 34px;
      height: 34px;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      color: var(--primary);
      background: #f0efff;
      font-size: 13px;
      font-weight: 850;
    }
    .protection-card h3 { margin: 22px 0 8px; font-size: 20px; }
    .protection-card p { margin: 0; color: var(--muted); font-size: 15px; }

    .split {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      align-items: center;
      gap: 68px;
    }
    .image-frame {
      position: relative;
      overflow: hidden;
      min-height: 420px;
      border-radius: var(--radius-lg);
      background: #ddd;
      box-shadow: var(--shadow);
    }
    .image-frame img {
      width: 100%;
      height: 100%;
      min-height: 420px;
      object-fit: cover;
    }
    .image-frame::after {
      content: "安全访问提示";
      position: absolute;
      left: 22px;
      bottom: 22px;
      padding: 9px 14px;
      color: #fff;
      border: 1px solid rgba(255,255,255,.25);
      border-radius: 9px;
      background: rgba(21, 27, 48, .72);
      backdrop-filter: blur(8px);
      font-size: 13px;
      font-weight: 700;
    }
    .content-list {
      display: grid;
      gap: 18px;
      margin-top: 26px;
    }
    .content-list li {
      display: grid;
      grid-template-columns: 30px 1fr;
      gap: 12px;
      list-style: none;
    }
    .content-list ul { padding: 0; margin: 0; }
    .check {
      width: 25px;
      height: 25px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #087e65;
      background: var(--accent-soft);
      font-size: 13px;
      font-weight: 900;
    }
    .content-list strong { display: block; margin-bottom: 2px; }
    .content-list span { color: var(--muted); font-size: 14px; }

    .soft-section { background: var(--soft); }
    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .step {
      position: relative;
      padding: 24px 21px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: #fff;
    }
    .step::after {
      content: "→";
      position: absolute;
      right: -14px;
      top: 31px;
      color: #a7adbd;
      font-size: 21px;
    }
    .step:last-child::after { display: none; }
    .step-label { color: var(--primary); font-size: 12px; font-weight: 850; }
    .step h3 { margin: 10px 0 7px; font-size: 18px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }

    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 15px;
    }
    details {
      padding: 0 21px;
      border: 1px solid var(--line);
      border-radius: 15px;
      background: #fff;
      transition: .2s ease;
    }
    details[open] { border-color: #cbc8ff; box-shadow: var(--shadow-sm); }
    summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 0;
      cursor: pointer;
      font-weight: 750;
      list-style: none;
    }
    summary::-webkit-details-marker { display: none; }
    summary::after {
      content: "+";
      color: var(--primary);
      font-size: 23px;
      font-weight: 400;
    }
    details[open] summary::after { content: "−"; }
    details p {
      margin: -4px 0 20px;
      color: var(--muted);
      font-size: 14px;
    }

    .cta {
      position: relative;
      overflow: hidden;
      padding: 55px;
      border-radius: var(--radius-lg);
      color: #fff;
      background:
        linear-gradient(120deg, rgba(69, 61, 175, .96), rgba(99, 91, 255, .88)),
        url("/assets/images/backpic/back-3.webp") center/cover;
    }
    .cta::before {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      right: 8%;
      top: -130px;
      border: 1px solid rgba(255,255,255,.17);
      border-radius: 50%;
    }
    .cta-inner { position: relative; z-index: 1; max-width: 730px; }
    .cta h2 { margin: 0 0 12px; font-size: clamp(27px, 4vw, 40px); line-height: 1.25; }
    .cta p { margin: 0; color: rgba(255,255,255,.78); }
    .cta .btn { margin-top: 24px; background: #fff; color: var(--primary-dark); }

    .site-footer {
      padding: 45px 0 28px;
      border-top: 1px solid var(--line);
      background: #fff;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 35px;
    }
    .footer-brand p {
      max-width: 330px;
      margin: 16px 0 0;
      color: var(--muted);
      font-size: 14px;
    }
    .footer-title { margin: 5px 0 15px; font-size: 14px; }
    .footer-links { display: grid; gap: 9px; }
    .footer-links a { color: var(--muted); font-size: 14px; transition: .2s ease; }
    .footer-links a:hover { color: var(--primary); }
    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
      color: #8b93a5;
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .nav-links { gap: 0; }
      .nav-links a { padding-inline: 9px; font-size: 13px; }
      .split { gap: 38px; }
      .steps { grid-template-columns: repeat(2, 1fr); }
      .step::after { display: none; }
    }
    @media (max-width: 768px) {
      .container { width: min(calc(100% - 36px), var(--max)); }
      .nav-wrap { min-height: 70px; }
      .nav-toggle { display: block; }
      .nav-links {
        position: absolute;
        left: 18px;
        right: 18px;
        top: 76px;
        display: none;
        padding: 10px;
        flex-direction: column;
        align-items: stretch;
        border: 1px solid var(--line);
        border-radius: 15px;
        background: #fff;
        box-shadow: var(--shadow);
      }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 12px 14px; }
      .hero { padding: 72px 0 75px; }
      .section { padding: 68px 0; }
      .section-head { display: block; }
      .section-desc { margin-top: 15px; }
      .protection-grid, .faq-grid { grid-template-columns: 1fr; }
      .split { grid-template-columns: 1fr; gap: 34px; }
      .image-frame, .image-frame img { min-height: 300px; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .footer-brand { grid-column: 1 / -1; }
    }
    @media (max-width: 520px) {
      .container { width: min(calc(100% - 28px), var(--max)); }
      .hero h1 { font-size: 37px; }
      .hero p { font-size: 15px; }
      .hero-actions .btn { width: 100%; }
      .notice-box { align-items: flex-start; padding: 18px; }
      .protection-card { padding: 23px; }
      .steps { grid-template-columns: 1fr; }
      .cta { padding: 34px 24px; }
      .footer-grid { grid-template-columns: 1fr; gap: 27px; }
      .footer-brand { grid-column: auto; }
      .copyright { display: block; }
      .copyright span { display: block; margin-top: 7px; }
    }

/* roulang page: category5 */
:root{
      --ink:#172033;
      --muted:#687386;
      --soft:#f5f7fb;
      --paper:#ffffff;
      --line:#e4e8f0;
      --brand:#7d4df1;
      --brand-dark:#5930c7;
      --accent:#19b5a5;
      --warm:#fff4e9;
      --radius-lg:28px;
      --radius-md:18px;
      --radius-sm:12px;
      --shadow:0 18px 50px rgba(32,42,73,.10);
      --shadow-sm:0 8px 24px rgba(32,42,73,.07);
      --container:1180px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);background:var(--soft);line-height:1.75;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid rgba(125,77,241,.38);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);border-bottom:1px solid rgba(228,232,240,.82)
    }
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:-.03em;white-space:nowrap}
    .brand-mark{
      width:34px;height:34px;border-radius:11px;background:var(--brand);
      display:grid;place-items:center;transform:rotate(-7deg);
      box-shadow:0 7px 16px rgba(125,77,241,.28)
    }
    .brand-mark span{width:13px;height:13px;border:3px solid #fff;border-radius:50%;position:relative}
    .brand-mark span:after{content:"";position:absolute;width:7px;height:3px;background:#fff;right:-7px;bottom:-4px;transform:rotate(45deg);border-radius:4px}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:10px;transition:.25s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--brand-dark);background:#f0ebff}
    .nav-toggle{display:none;background:transparent;font-size:24px;color:var(--ink)}
    .hero{
      min-height:485px;display:flex;align-items:center;position:relative;overflow:hidden;
      background:linear-gradient(90deg,rgba(19,25,48,.88),rgba(34,31,74,.68)),url("/assets/images/backpic/back-3.webp") center/cover;
      color:#fff
    }
    .hero:after{content:"";position:absolute;inset:auto -8% -120px auto;width:460px;height:300px;background:rgba(25,181,165,.23);filter:blur(55px);border-radius:50%}
    .hero-content{position:relative;z-index:1;max-width:790px;padding:74px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#c7b8ff;font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--accent)}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.16;letter-spacing:-.055em;margin-bottom:22px}
    .hero p{font-size:18px;line-height:1.85;color:rgba(255,255,255,.78);max-width:710px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:47px;padding:0 22px;border-radius:13px;font-weight:700;font-size:14px;transition:.25s ease}
    .btn-primary{background:var(--accent);color:#073c37;box-shadow:0 10px 24px rgba(25,181,165,.24)}
    .btn-primary:hover{background:#35c8b8;transform:translateY(-2px)}
    .btn-light{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff}
    .btn-light:hover{background:rgba(255,255,255,.2)}
    main{overflow:hidden}
    .section{padding:92px 0}
    .section-head{max-width:690px;margin-bottom:38px}
    .section-kicker{color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.12em;margin-bottom:9px}
    h2{font-size:clamp(28px,3.5vw,43px);line-height:1.25;letter-spacing:-.045em;margin-bottom:13px}
    .section-head p{color:var(--muted);font-size:16px}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch}
    .feature-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:38px;box-shadow:var(--shadow-sm)}
    .feature-panel h3{font-size:24px;line-height:1.35;margin-bottom:13px}
    .feature-panel p{color:var(--muted);font-size:15px}
    .feature-image{min-height:310px;border-radius:var(--radius-lg);overflow:hidden;position:relative;background:#20233c}
    .feature-image img{width:100%;height:100%;object-fit:cover;opacity:.8}
    .image-caption{position:absolute;bottom:0;left:0;right:0;padding:30px 26px 24px;color:#fff;background:linear-gradient(transparent,rgba(15,19,40,.86));font-weight:700}
    .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .info-card{background:var(--paper);padding:27px;border:1px solid var(--line);border-radius:var(--radius-md);transition:.25s ease}
    .info-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d7cbff}
    .icon{width:43px;height:43px;display:grid;place-items:center;border-radius:13px;background:#f0ebff;color:var(--brand-dark);font-size:20px;margin-bottom:20px}
    .info-card:nth-child(2) .icon{background:#e3faf6;color:#087c70}
    .info-card:nth-child(3) .icon{background:#fff0dc;color:#af6414}
    .info-card h3{font-size:19px;margin-bottom:8px}
    .info-card p{color:var(--muted);font-size:14px}
    .notice-section{background:#191d35;color:#fff}
    .notice-section .section-kicker{color:#67ddcf}
    .notice-section .section-head p{color:rgba(255,255,255,.66)}
    .notice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .notice-item{display:flex;gap:16px;padding:23px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);border-radius:16px}
    .notice-number{flex:0 0 32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:#073c37;font-weight:800;font-size:14px}
    .notice-item h3{font-size:17px;margin-bottom:5px}
    .notice-item p{font-size:14px;color:rgba(255,255,255,.65)}
    .rating-box{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:30px}
    .rating{padding:22px;background:var(--paper);border-radius:16px;border:1px solid var(--line)}
    .rating strong{display:block;color:var(--brand-dark);font-size:18px;margin-bottom:6px}
    .rating span{color:var(--muted);font-size:13px}
    .faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
    details{background:var(--paper);border:1px solid var(--line);border-radius:15px;padding:19px 22px;transition:.2s ease}
    details[open]{border-color:#cfc1ff;box-shadow:var(--shadow-sm)}
    summary{font-weight:750;cursor:pointer;list-style:none;padding-right:20px;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--brand);font-size:22px;top:-4px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;padding-top:12px}
    .cta{padding:58px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:40px 46px;border-radius:var(--radius-lg);background:linear-gradient(120deg,#eee9ff,#e6faf7);border:1px solid #ded8fa}
    .cta h2{font-size:30px;margin-bottom:8px}
    .cta p{color:var(--muted);font-size:15px}
    .footer{background:#111528;color:#fff;padding:54px 0 25px}
    .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand p{color:rgba(255,255,255,.57);font-size:14px;max-width:360px;margin-top:13px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px 25px;align-content:flex-start}
    .footer-links a{color:rgba(255,255,255,.67);font-size:14px;transition:.2s}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:22px;color:rgba(255,255,255,.42);font-size:12px}
    @media(max-width:1024px){
      .nav-links a{padding:9px 8px;font-size:13px}
      .intro-grid{grid-template-columns:1fr}
      .feature-image{min-height:260px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 30px))}
      .nav-wrap{height:68px}
      .nav-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:15px;right:15px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 14px}
      .hero{min-height:530px}
      .hero-content{padding:60px 0}
      .hero p{font-size:16px}
      .section{padding:68px 0}
      .card-grid,.faq-list,.notice-grid{grid-template-columns:1fr}
      .rating-box{grid-template-columns:1fr}
      .cta-inner{display:block;padding:32px 26px}
      .cta .btn{margin-top:22px}
      .footer-top,.footer-bottom{display:block}
      .footer-links{margin-top:25px}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      h1{font-size:38px}
      h2{font-size:30px}
      .feature-panel{padding:27px 23px}
      .hero-actions .btn{width:100%}
      .notice-item{padding:19px}
      .brand{font-size:16px}
      .brand-mark{width:31px;height:31px}
    }

/* roulang page: category1 */
:root{
      --ink:#18202b;
      --muted:#687386;
      --paper:#f7f8fb;
      --card:#ffffff;
      --line:#e5e9f0;
      --primary:#9c315d;
      --primary-dark:#732240;
      --accent:#e9b36b;
      --soft:#fff4f6;
      --deep:#241a2b;
      --radius:22px;
      --shadow:0 18px 50px rgba(35,25,45,.10);
      --container:1180px;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 44px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(229,233,240,.8)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .brand{display:inline-flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:12px;background:var(--primary);box-shadow:0 8px 18px rgba(156,49,93,.25)}
    .brand-mark span{width:12px;height:12px;border:3px solid #fff;border-radius:50%;position:relative}
    .brand-mark span:after{content:"";position:absolute;width:7px;height:3px;background:var(--accent);right:-7px;bottom:-4px;border-radius:5px;transform:rotate(45deg)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:10px 14px;border-radius:12px;color:#657083;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{color:var(--primary);background:var(--soft)}
    .nav-links a.active{font-weight:700}
    .nav-toggle{display:none;background:transparent;color:var(--ink);font-size:25px}
    .hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(90deg,rgba(36,26,43,.94),rgba(36,26,43,.67)),url("/assets/images/backpic/back-2.webp") center/cover}
    .hero:after{content:"";position:absolute;inset:auto 0 0;height:100px;background:linear-gradient(transparent,var(--paper))}
    .hero-inner{position:relative;z-index:1;padding:85px 0 105px;color:#fff;max-width:760px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:25px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,5.5vw,70px);line-height:1.14;letter-spacing:-.045em;margin:22px 0 20px}
    .hero p{font-size:18px;line-height:1.9;color:rgba(255,255,255,.82);max-width:670px}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:32px}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;padding:13px 22px;border-radius:13px;font-weight:700;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--accent);color:#3a2530;box-shadow:0 10px 24px rgba(233,179,107,.2)}
    .btn-primary:hover{transform:translateY(-3px);background:#f2c582}
    .btn-light{color:#fff;border-color:rgba(255,255,255,.35);background:rgba(255,255,255,.08)}
    .btn-light:hover{background:#fff;color:var(--deep)}
    .btn:focus,.nav-toggle:focus,summary:focus{outline:3px solid rgba(233,179,107,.65);outline-offset:3px}
    .section{padding:92px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--primary)}
    h2{font-size:clamp(28px,3.3vw,44px);line-height:1.25;letter-spacing:-.035em;margin-top:10px}
    .section-lead{max-width:570px;color:var(--muted);font-size:16px}
    .intro-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:stretch}
    .feature-image{min-height:390px;border-radius:var(--radius);overflow:hidden;position:relative;box-shadow:var(--shadow)}
    .feature-image img{width:100%;height:100%;object-fit:cover}
    .feature-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(36,26,43,.65),transparent 55%)}
    .image-caption{position:absolute;z-index:1;bottom:25px;left:27px;color:#fff;font-size:17px;font-weight:700}
    .panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:35px;box-shadow:var(--shadow)}
    .panel h3{font-size:24px;margin-bottom:13px}
    .panel p{color:var(--muted)}
    .check-list{list-style:none;margin-top:23px;display:grid;gap:13px}
    .check-list li{display:flex;gap:12px;align-items:flex-start;color:#3d4757}
    .check-list li:before{content:"✓";flex:0 0 23px;height:23px;display:grid;place-items:center;border-radius:50%;background:#fce8ef;color:var(--primary);font-size:13px;font-weight:800;margin-top:3px}
    .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.28s ease}
    .card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#efc5d3}
    .card img{width:100%;height:190px;object-fit:cover}
    .card-body{padding:23px}
    .tag{display:inline-flex;padding:5px 10px;border-radius:20px;background:var(--soft);color:var(--primary);font-size:12px;font-weight:800}
    .card h3{font-size:20px;margin:13px 0 8px}
    .card p{font-size:14px;color:var(--muted);line-height:1.75}
    .numbered{counter-reset:item;display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .step{position:relative;padding:27px 22px;background:#fff;border:1px solid var(--line);border-radius:18px}
    .step:before{counter-increment:item;content:"0" counter(item);display:block;color:var(--accent);font-size:28px;font-weight:900;line-height:1;margin-bottom:25px}
    .step h3{font-size:18px;margin-bottom:8px}.step p{font-size:14px;color:var(--muted)}
    .soft-section{background:#fff4f6}
    .split{display:grid;grid-template-columns:.82fr 1.18fr;gap:60px;align-items:center}
    .split img{width:100%;height:370px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
    .principles{display:grid;gap:14px;margin-top:24px}
    .principle{display:flex;gap:15px;padding:16px 18px;background:#fff;border:1px solid #f1dce3;border-radius:14px}
    .principle strong{display:block;margin-bottom:3px}.principle span{font-size:14px;color:var(--muted)}
    .faq-list{max-width:860px;margin:auto;display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:15px;padding:0 22px}
    summary{list-style:none;cursor:pointer;padding:20px 0;font-size:16px;font-weight:700}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";float:right;color:var(--primary);font-size:22px}
    details[open] summary:after{content:"−"}
    details p{padding:0 32px 21px 0;color:var(--muted);font-size:14px}
    .cta{padding:58px 65px;border-radius:var(--radius);background:var(--deep);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;overflow:hidden;position:relative}
    .cta:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(233,179,107,.25);border-radius:50%;right:-100px;top:-130px}
    .cta h2{font-size:32px;position:relative;z-index:1}.cta p{color:rgba(255,255,255,.7);margin-top:9px;position:relative;z-index:1}
    .site-footer{background:#201824;color:#bbb4c1;padding:50px 0 25px}
    .footer-top{display:flex;justify-content:space-between;gap:35px;padding-bottom:35px;border-bottom:1px solid rgba(255,255,255,.1)}
    .footer-brand{color:#fff;font-size:20px;font-weight:800;margin-bottom:11px}.footer-top p{font-size:14px;max-width:430px}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px 24px;align-content:flex-start}
    .footer-links a{font-size:13px;color:#d9d1dc;transition:.2s}.footer-links a:hover{color:var(--accent)}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:12px;color:#857b89}
    @media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:9px 9px;font-size:13px}.numbered{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.nav-wrap{height:68px}.nav-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 22px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 15px 25px rgba(20,20,30,.08);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.hero{min-height:560px}.hero-inner{padding:75px 0 100px}.intro-grid,.split{grid-template-columns:1fr;gap:22px}.feature-image{min-height:280px}.section{padding:68px 0}.section-head{display:block}.section-lead{margin-top:14px}.cards{grid-template-columns:1fr 1fr}.cta{display:block;padding:40px 28px}.cta .btn{margin-top:24px}.footer-top,.copyright{display:block}.footer-links{margin-top:25px}.copyright span{display:block;margin-top:7px}}
    @media(max-width:520px){.container{width:min(100% - 30px,var(--container))}.cards,.numbered{grid-template-columns:1fr}.panel{padding:25px}.hero p{font-size:16px}.hero-actions .btn{width:100%}h1{font-size:39px}.feature-image{min-height:245px}.split img{height:260px}.cta h2{font-size:27px}}

/* roulang page: category2 */
:root {
      --bg: #100f18;
      --bg-soft: #171522;
      --panel: #211e2d;
      --panel-light: #2a2639;
      --text: #f8f5ff;
      --muted: #aaa4bb;
      --faint: #827b96;
      --line: rgba(255,255,255,.1);
      --primary: #df7bff;
      --primary-deep: #a957e7;
      --accent: #70e3c0;
      --warning: #ffd28b;
      --radius-lg: 28px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --shadow: 0 22px 70px rgba(0,0,0,.28);
      --container: 1180px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      min-width: 320px;
      background:
        radial-gradient(circle at 78% 7%, rgba(223,123,255,.14), transparent 28rem),
        radial-gradient(circle at 15% 45%, rgba(112,227,192,.08), transparent 26rem),
        var(--bg);
      color: var(--text);
      font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button, input { font: inherit; }
    button { border: 0; cursor: pointer; }
    :focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

    .container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 1px solid var(--line);
      background: rgba(16,15,24,.82);
      backdrop-filter: blur(18px);
    }
    .nav-wrap {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      flex-shrink: 0;
      font-size: 18px;
      font-weight: 800;
      letter-spacing: .02em;
    }
    .brand-mark {
      width: 33px;
      height: 33px;
      display: grid;
      place-items: center;
      border-radius: 11px;
      background: linear-gradient(145deg, var(--primary), var(--primary-deep));
      box-shadow: 0 8px 25px rgba(223,123,255,.28);
    }
    .brand-mark span {
      width: 13px;
      height: 13px;
      border: 3px solid #fff;
      border-radius: 50%;
      display: block;
    }
    .nav-links { display: flex; align-items: center; gap: 5px; }
    .nav-links a {
      color: var(--muted);
      padding: 10px 13px;
      border-radius: 10px;
      font-size: 14px;
      transition: color .25s, background .25s, transform .25s;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: rgba(223,123,255,.13);
    }
    .nav-links a:hover { transform: translateY(-1px); }
    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      color: var(--text);
      background: var(--panel);
      border: 1px solid var(--line);
      border-radius: 12px;
      font-size: 21px;
    }

    .page-banner {
      position: relative;
      min-height: 440px;
      display: flex;
      align-items: center;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(16,15,24,.96) 12%, rgba(16,15,24,.7) 54%, rgba(16,15,24,.42)),
        url("/assets/images/backpic/back-2.webp") center/cover;
    }
    .page-banner::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 130px;
      background: linear-gradient(transparent, var(--bg));
    }
    .banner-content { position: relative; z-index: 1; max-width: 760px; padding: 76px 0 88px; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .12em;
      text-transform: uppercase;
    }
    .eyebrow::before {
      content: "";
      width: 26px;
      height: 2px;
      background: var(--accent);
      border-radius: 5px;
    }
    h1, h2, h3 { line-height: 1.25; letter-spacing: -.025em; }
    h1 { margin-top: 18px; font-size: clamp(38px, 6vw, 72px); }
    .banner-content p {
      max-width: 680px;
      margin-top: 23px;
      color: #d4cedf;
      font-size: 18px;
    }
    .banner-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 21px;
      border-radius: 13px;
      font-weight: 700;
      transition: transform .25s, box-shadow .25s, background .25s;
    }
    .button-primary {
      color: #211225;
      background: var(--primary);
      box-shadow: 0 12px 30px rgba(223,123,255,.25);
    }
    .button-primary:hover { transform: translateY(-3px); box-shadow: 0 17px 35px rgba(223,123,255,.35); }
    .button-ghost {
      color: var(--text);
      border: 1px solid var(--line);
      background: rgba(255,255,255,.06);
    }
    .button-ghost:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }

    .section { padding: 92px 0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 34px; }
    .section-head h2 { max-width: 600px; font-size: clamp(28px, 4vw, 44px); }
    .section-head p { max-width: 440px; color: var(--muted); }
    .label {
      display: inline-block;
      margin-bottom: 12px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .12em;
    }

    .notice {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
      padding: 24px 28px;
      border: 1px solid rgba(255,210,139,.2);
      border-radius: var(--radius-md);
      background: rgba(255,210,139,.07);
    }
    .notice strong { display: block; margin-bottom: 3px; color: var(--warning); }
    .notice p { color: var(--muted); font-size: 14px; }

    .choice-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }
    .choice-card {
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: var(--panel);
      box-shadow: var(--shadow);
      transition: transform .3s, border-color .3s;
    }
    .choice-card:hover { transform: translateY(-7px); border-color: rgba(223,123,255,.45); }
    .choice-image { height: 205px; overflow: hidden; }
    .choice-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
    .choice-card:hover .choice-image img { transform: scale(1.05); }
    .choice-body { padding: 24px; }
    .choice-body h3 { font-size: 21px; }
    .choice-body p { margin-top: 11px; color: var(--muted); font-size: 14px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
    .tag {
      display: inline-flex;
      padding: 4px 9px;
      color: #ded6e9;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255,255,255,.045);
      font-size: 12px;
    }

    .split {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 58px;
      align-items: center;
    }
    .feature-image {
      min-height: 430px;
      overflow: hidden;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
    }
    .feature-image img { width: 100%; height: 100%; min-height: 430px; object-fit: cover; }
    .feature-copy h2 { font-size: clamp(28px, 4vw, 43px); }
    .feature-copy > p { margin-top: 17px; color: var(--muted); }
    .check-list { display: grid; gap: 16px; margin-top: 28px; }
    .check-item { display: flex; gap: 14px; align-items: flex-start; }
    .check-icon {
      flex: 0 0 28px;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      color: #14251f;
      border-radius: 50%;
      background: var(--accent);
      font-size: 14px;
      font-weight: 900;
    }
    .check-item strong { display: block; margin-bottom: 2px; }
    .check-item span { color: var(--muted); font-size: 14px; }

    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 15px;
    }
    .step {
      position: relative;
      min-height: 190px;
      padding: 23px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: linear-gradient(150deg, rgba(255,255,255,.07), rgba(255,255,255,.025));
    }
    .step-number { color: var(--primary); font-size: 28px; font-weight: 900; }
    .step h3 { margin-top: 17px; font-size: 18px; }
    .step p { margin-top: 8px; color: var(--muted); font-size: 14px; }

    .faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 65px; }
    .faq-layout h2 { font-size: clamp(29px, 4vw, 44px); }
    .faq-layout > div > p { margin-top: 16px; color: var(--muted); }
    .faq-list { display: grid; gap: 10px; }
    .faq-item { border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--panel); }
    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding: 19px 21px;
      color: var(--text);
      background: transparent;
      text-align: left;
      font-weight: 700;
    }
    .faq-question span { color: var(--primary); font-size: 22px; transition: transform .25s; }
    .faq-answer { display: none; padding: 0 21px 20px; color: var(--muted); font-size: 14px; }
    .faq-item.open .faq-answer { display: block; }
    .faq-item.open .faq-question span { transform: rotate(45deg); }

    .cta {
      position: relative;
      overflow: hidden;
      padding: 48px;
      border: 1px solid rgba(223,123,255,.28);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(110deg, rgba(223,123,255,.18), rgba(112,227,192,.07)),
        var(--panel);
    }
    .cta::before {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      right: -55px;
      top: -80px;
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 50%;
      box-shadow: 0 0 0 25px rgba(255,255,255,.025), 0 0 0 50px rgba(255,255,255,.018);
    }
    .cta-content { position: relative; z-index: 1; max-width: 720px; }
    .cta h2 { font-size: clamp(28px, 4vw, 42px); }
    .cta p { margin-top: 12px; color: var(--muted); }

    .site-footer {
      padding: 36px 0 25px;
      border-top: 1px solid var(--line);
      background: #0c0b12;
    }
    .footer-top { display: flex; justify-content: space-between; gap: 30px; }
    .footer-brand p { max-width: 380px; margin-top: 12px; color: var(--faint); font-size: 14px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 20px; }
    .footer-links a { color: var(--muted); font-size: 14px; transition: color .2s; }
    .footer-links a:hover { color: var(--primary); }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      margin-top: 35px;
      padding-top: 20px;
      border-top: 1px solidvar(--line);
      color: var(--faint);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .nav-links { gap: 0; }
      .nav-links a { padding: 9px 8px; font-size: 13px; }
      .split { gap: 38px; }
      .faq-layout { gap: 40px; }
      .choice-grid { grid-template-columns: repeat(3, 1fr); }
    }

    @media (max-width: 768px) {
      .container { width: min(100% - 34px, var(--container)); }
      .nav-wrap { min-height: 68px; }
      .nav-toggle { display: inline-grid; place-items: center; }
      .nav-links {
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        display: none;
        padding: 12px 17px 17px;
        border-bottom: 1px solid var(--line);
        background: rgba(16,15,24,.98);
        box-shadow: 0 15px 32px rgba(0,0,0,.24);
      }
      .nav-links.open { display: grid; }
      .nav-links a { padding: 12px; font-size: 15px; }
      .page-banner { min-height: 395px; }
      .banner-content { padding: 65px 0 72px; }
      .banner-content p { font-size: 16px; }
      .section { padding: 68px 0; }
      .section-head, .notice, .split, .faq-layout { grid-template-columns: 1fr; }
      .section-head { display: grid; gap: 14px; align-items: start; }
      .section-head p { max-width: 620px; }
      .notice { gap: 15px; padding: 21px; }
      .choice-grid { grid-template-columns: repeat(2, 1fr); }
      .split { gap: 32px; }
      .feature-image, .feature-image img { min-height: 330px; }
      .steps { grid-template-columns: repeat(2, 1fr); }
      .faq-layout { gap: 28px; }
      .footer-top, .footer-bottom { flex-direction: column; }
      .footer-links { justify-content: flex-start; }
    }

    @media (max-width: 520px) {
      .container { width: min(100% - 28px, var(--container)); }
      .brand { font-size: 16px; }
      .brand-mark { width: 30px; height: 30px; }
      h1 { font-size: 38px; }
      .page-banner { min-height: 410px; }
      .banner-actions { display: grid; }
      .button { width: 100%; }
      .section { padding: 54px 0; }
      .choice-grid, .steps { grid-template-columns: 1fr; }
      .choice-image { height: 210px; }
      .notice { padding: 18px; }
      .feature-image, .feature-image img { min-height: 265px; }
      .cta { padding: 30px 23px; }
      .faq-question { padding: 17px; }
      .faq-answer { padding: 0 17px 18px; }
    }

/* roulang page: category4 */
:root{
      --ink:#1d2330;
      --muted:#6e7482;
      --paper:#fbfaf8;
      --card:#ffffff;
      --line:#ebe7e1;
      --brand:#b94e49;
      --brand-dark:#873936;
      --accent:#e6a66f;
      --deep:#252935;
      --soft:#f4eeea;
      --radius:22px;
      --shadow:0 18px 45px rgba(46,34,31,.09);
      --ease:all .25s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid rgba(185,78,73,.35);outline-offset:4px}
    .container{width:min(1160px,calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(251,250,248,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(235,231,225,.85)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .brand{display:inline-flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .brand-mark{width:31px;height:31px;display:grid;place-items:center;border-radius:10px;background:var(--brand);transform:rotate(-8deg);box-shadow:0 7px 16px rgba(185,78,73,.25)}
    .brand-mark span{width:12px;height:12px;border:3px solid #fff;border-radius:50%;position:relative}
    .brand-mark span:after{content:"";position:absolute;width:7px;height:3px;background:#fff;right:-7px;bottom:-3px;border-radius:4px;transform:rotate(45deg)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 13px;border-radius:10px;color:#666b77;font-size:14px;transition:var(--ease)}
    .nav-links a:hover,.nav-links a.active{color:var(--brand-dark);background:#f3e7e2}
    .nav-toggle{display:none;background:transparent;color:var(--ink);font-size:24px}
    .hero{position:relative;isolation:isolate;min-height:430px;display:flex;align-items:center;background-image:linear-gradient(90deg,rgba(27,27,34,.82),rgba(27,27,34,.3)),url('/assets/images/backpic/back-2.webp');background-position:center;background-size:cover;color:#fff;overflow:hidden}
    .hero:after{content:"";position:absolute;inset:auto -8% -100px;height:190px;background:var(--paper);border-radius:50% 50% 0 0/45% 45% 0 0;z-index:-1}
    .hero-content{max-width:740px;padding:74px 0 95px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--accent);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,6vw,68px);line-height:1.13;letter-spacing:-.045em;margin:20px 0 22px}
    .hero p{max-width:650px;color:rgba(255,255,255,.8);font-size:17px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;padding:12px 20px;font-weight:700;font-size:14px;transition:var(--ease);border:1px solid transparent}
    .btn-primary{background:var(--brand);color:#fff;box-shadow:0 9px 20px rgba(185,78,73,.2)}
    .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px)}
    .btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.3);color:#fff}
    .btn-light:hover{background:#fff;color:var(--deep)}
    .section{padding:92px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section h2{font-size:clamp(27px,4vw,42px);line-height:1.2;letter-spacing:-.03em;margin-top:13px}
    .section-lead{max-width:570px;color:var(--muted);font-size:15px}
    .privacy-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch}
    .feature-card{background:var(--deep);color:#fff;border-radius:var(--radius);padding:38px;position:relative;overflow:hidden;min-height:320px}
    .feature-card:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(230,166,111,.25);border-radius:50%;right:-80px;bottom:-95px}
    .feature-card h3{font-size:25px;line-height:1.35;margin:20px 0 12px;max-width:380px}
    .feature-card p{color:#bdc0c8;max-width:420px}
    .icon-badge{width:45px;height:45px;border-radius:14px;display:grid;place-items:center;background:rgba(230,166,111,.16);color:var(--accent);font-size:22px}
    .info-stack{display:grid;gap:16px}
    .info-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px 25px;display:flex;gap:18px;transition:var(--ease)}
    .info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#e2c7bb}
    .info-card h3{font-size:17px;margin-bottom:5px}
    .info-card p{color:var(--muted);font-size:14px;line-height:1.7}
    .safe-band{background:var(--soft)}
    .three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .step-card{background:rgba(255,255,255,.75);border:1px solid rgba(225,214,207,.9);border-radius:18px;padding:27px;min-height:190px}
    .step-no{color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.12em}
    .step-card h3{font-size:19px;margin:14px 0 8px}
    .step-card p{color:var(--muted);font-size:14px}
    .visual-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;align-items:center}
    .visual-panel img{width:100%;height:330px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
    .check-list{list-style:none;margin-top:23px;display:grid;gap:15px}
    .check-list li{display:flex;gap:12px;color:#505562;font-size:15px}
    .check-list li:before{content:"✓";flex:0 0 23px;width:23px;height:23px;border-radius:50%;display:grid;place-items:center;background:#f1d9ce;color:var(--brand-dark);font-weight:800;line-height:1}
    .faq-wrap{max-width:850px;margin:auto}
    .faq-item{background:var(--card);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden}
    .faq-item summary{list-style:none;padding:20px 24px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--brand);font-size:22px;font-weight:400;line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 24px 21px;color:var(--muted);font-size:14px}
    .cta{padding:70px 0;background:var(--brand);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:clamp(26px,4vw,40px);line-height:1.25;margin:12px 0 8px}
    .cta p{color:rgba(255,255,255,.78);max-width:600px}
    .cta .btn-primary{background:#fff;color:var(--brand-dark);box-shadow:none}
    .cta .btn-primary:hover{background:#f8eae4}
    .site-footer{background:#20232c;color:#b5b8c1;padding:58px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:42px}
    .footer-brand{color:#fff;font-size:20px;font-weight:800;margin-bottom:14px;display:inline-block}
    .footer-copy{font-size:14px;max-width:350px;line-height:1.8}
    .footer-title{color:#fff;font-size:14px;font-weight:700;margin-bottom:15px}
    .footer-links{display:grid;gap:9px;font-size:14px}
    .footer-links a{transition:var(--ease)}
    .footer-links a:hover{color:var(--accent)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:21px;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:900px){
      .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}
      .privacy-grid,.visual-panel{grid-template-columns:1fr}
      .visual-panel img{height:280px}.three-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:700px){
      .container{width:min(100% - 34px,1160px)}
      .nav-wrap{height:68px}.nav-toggle{display:block}
      .nav-links{display:none;position:absolute;left:17px;right:17px;top:75px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .hero{min-height:500px}.hero-content{padding:65px 0 105px}.hero p{font-size:15px}
      .section{padding:68px 0}.section-head{display:block}.section-lead{margin-top:15px}
      .three-grid{grid-template-columns:1fr}.feature-card{padding:28px}
      .cta-inner{display:block}.cta .btn{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:430px){
      h1{font-size:39px}.hero-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }