/* roulang page: index */
:root{
  --ink:#172127;
  --muted:#66747a;
  --paper:#f6f8f7;
  --surface:#ffffff;
  --line:#dce5e1;
  --pine:#115847;
  --pine-dark:#093e32;
  --mint:#dff4e8;
  --coral:#e9674d;
  --gold:#f6c968;
  --shadow:0 16px 42px rgba(20,47,39,.10);
  --shadow-hover:0 22px 48px rgba(20,47,39,.17);
  --radius:8px;
  --container:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.72}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;max-width:100%;object-fit:cover}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,248,247,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(220,229,225,.88)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{font-weight:800;font-size:20px;letter-spacing:0;color:var(--pine-dark);white-space:nowrap}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;margin-right:8px;border-radius:50%;background:var(--coral);color:#fff;font-size:15px;vertical-align:1px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:8px 12px;border-radius:6px;color:#405057;font-size:14px;font-weight:700;transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a.active{background:var(--mint);color:var(--pine-dark)}
.age-pill{display:inline-flex;align-items:center;gap:7px;padding:7px 11px;border:1px solid #f0c8bd;border-radius:99px;color:#a33d2a;background:#fff6f3;font-size:12px;font-weight:800;white-space:nowrap}
.age-dot{width:7px;height:7px;border-radius:50%;background:var(--coral)}
.hero{position:relative;isolation:isolate;min-height:580px;display:flex;align-items:center;overflow:hidden;color:#fff;background:#153d35 url("/assets/images/backpic/back-1.webp") center/cover no-repeat}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(7,35,29,.92) 0%,rgba(8,44,36,.77) 47%,rgba(8,44,36,.30) 100%)}
.hero:after{content:"";position:absolute;right:-90px;bottom:-130px;z-index:-1;width:440px;height:440px;border:1px solid rgba(246,201,104,.52);border-radius:50%}
.hero-inner{padding:76px 0 82px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;padding:6px 11px;border:1px solid rgba(255,255,255,.3);border-radius:99px;color:#f7db9b;background:rgba(0,0,0,.12);font-size:12px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}
.hero h1{max-width:730px;margin:0;font-size:clamp(40px,6vw,72px);line-height:1.12;letter-spacing:0;font-weight:850}
.hero h1 span{color:var(--gold)}
.hero-copy{max-width:620px;margin:22px 0 0;color:#e0ebe7;font-size:18px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-flex;min-height:47px;align-items:center;justify-content:center;gap:9px;padding:11px 18px;border:1px solid transparent;border-radius:6px;font-weight:800;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--gold);color:#382600;box-shadow:0 10px 20px rgba(0,0,0,.17)}
.btn-primary:hover{background:#ffda83}
.btn-outline{border-color:rgba(255,255,255,.48);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{background:#fff;color:var(--pine-dark)}
.hero-note{display:flex;flex-wrap:wrap;gap:18px;margin-top:34px;color:#c9dad3;font-size:13px}
.hero-note span{display:flex;align-items:center;gap:7px}
.hero-note i{width:7px;height:7px;border-radius:50%;background:#79dbac}
.section{padding:88px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:32px}
.kicker{margin:0 0 8px;color:var(--coral);font-size:13px;font-weight:850;letter-spacing:.09em}
h2{margin:0;font-size:clamp(28px,3.8vw,42px);line-height:1.23;letter-spacing:0}
.section-intro{max-width:470px;margin:0;color:var(--muted);font-size:15px}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.category-card{position:relative;min-height:390px;display:flex;align-items:flex-end;overflow:hidden;border-radius:var(--radius);background:#163f36;box-shadow:var(--shadow);color:#fff;transition:transform .25s,box-shadow .25s}
.category-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.category-card img{position:absolute;inset:0;height:100%;opacity:.78;transition:transform .45s}
.category-card:hover img{transform:scale(1.05)}
.category-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 18%,rgba(7,30,25,.92) 96%)}
.card-content{position:relative;z-index:1;padding:25px;width:100%}
.card-index{display:block;margin-bottom:70px;color:var(--gold);font-family:Georgia,serif;font-size:18px;font-weight:bold}
.card-content h3{margin:0 0 8px;font-size:25px;line-height:1.25}
.card-content p{margin:0;color:#d9e4df;font-size:14px}
.card-link{display:inline-flex;align-items:center;gap:8px;margin-top:17px;font-size:14px;font-weight:800}
.card-link:after{content:"→";font-size:18px;transition:transform .2s}
.category-card:hover .card-link:after{transform:translateX(4px)}
.feature-band{background:var(--pine-dark);color:#fff}
.feature-layout{display:grid;grid-template-columns:1.03fr .97fr;gap:68px;align-items:center}
.feature-image{height:450px;overflow:hidden;border-radius:var(--radius);box-shadow:0 22px 45px rgba(0,0,0,.23)}
.feature-image img{height:100%}
.feature-copy .kicker{color:var(--gold)}
.feature-copy h2{max-width:510px}
.feature-copy>p{margin:20px 0 0;color:#c9dad3}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:15px 24px;margin:30px 0 0;padding:0;list-style:none}
.check-list li{display:flex;gap:10px;color:#eff6f2;font-size:14px}
.check-list li:before{content:"✓";display:flex;flex:0 0 20px;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:#267660;color:#fff;font-weight:900;font-size:12px}
.latest{background:#edf3f0}
.latest-grid{display:grid;grid-template-columns:1.45fr .8fr;gap:24px}
.post-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 22px rgba(20,47,39,.05)}
.post-item{display:grid;grid-template-columns:74px 1fr auto;align-items:center;gap:18px;padding:22px 24px;border-bottom:1px solid var(--line);transition:background .2s}
.post-item:last-child{border-bottom:0}
.post-item:hover{background:#f8fcfa}
.post-number{color:#a5bab0;font-family:Georgia,serif;font-size:25px;font-weight:bold}
.post-info h3{margin:0;font-size:16px;line-height:1.45}
.post-info p{margin:4px 0 0;color:var(--muted);font-size:13px;line-height:1.55}
.post-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;color:var(--muted);font-size:12px;white-space:nowrap}
.badge{display:inline-flex;align-items:center;padding:4px 8px;border-radius:4px;background:var(--mint);color:var(--pine-dark);font-size:11px;font-weight:800}
.latest-side{padding:29px;border-radius:var(--radius);background:var(--coral);color:#fff}
.latest-side h3{margin:0;font-size:25px;line-height:1.3}
.latest-side p{margin:15px 0 25px;color:#fff0eb;font-size:14px}
.mini-rule{margin:0;padding:0;list-style:none;border-top:1px solid rgba(255,255,255,.33)}
.mini-rule li{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.33);font-size:13px}
.mini-rule b{display:block;margin-bottom:3px;color:#fff;font-size:14px}
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.process{position:relative;padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.process-num{display:block;color:var(--coral);font-family:Georgia,serif;font-size:39px;line-height:1}
.process h3{margin:20px 0 8px;font-size:19px}
.process p{margin:0;color:var(--muted);font-size:14px}
.signal-section{padding-top:24px}
.signal-box{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.signal{padding:31px 24px;border-right:1px solid var(--line)}
.signal:last-child{border-right:0}
.signal strong{display:block;color:var(--pine);font-family:Georgia,serif;font-size:34px;line-height:1.1}
.signal span{display:block;margin-top:7px;color:var(--muted);font-size:13px;font-weight:700}
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.faq-copy p{margin:18px 0 0;color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{padding:18px 0;border-bottom:1px solid var(--line)}
.faq-item summary{position:relative;padding-right:32px;cursor:pointer;list-style:none;color:var(--ink);font-size:17px;font-weight:800}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";position:absolute;right:4px;top:-4px;color:var(--coral);font-size:26px;font-weight:400}
.faq-item[open] summary:after{content:"−"}
.faq-item p{margin:12px 30px 0 0;color:var(--muted);font-size:14px}
.cta{padding:0 0 88px}
.cta-box{position:relative;overflow:hidden;padding:54px 58px;border-radius:var(--radius);background:#f5ca68;color:#302508}
.cta-box:after{content:"18+";position:absolute;right:40px;bottom:-64px;color:rgba(255,255,255,.34);font-family:Georgia,serif;font-size:200px;font-weight:bold;line-height:1}
.cta-box h2{position:relative;z-index:1;max-width:610px;font-size:39px}
.cta-box p{position:relative;z-index:1;max-width:560px;margin:15px 0 0;font-size:15px}
.cta-box .btn{position:relative;z-index:1;margin-top:25px;background:var(--pine-dark);color:#fff}
.cta-box .btn:hover{background:var(--pine)}
.site-footer{background:#102d26;color:#d6e2dc}
.footer-main{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:36px;padding:53px 0 35px}
.footer-brand p{max-width:330px;margin:15px 0 0;color:#a9c0b6;font-size:13px}
.footer-title{margin:3px 0 14px;color:#fff;font-size:14px;font-weight:800}
.footer-links{margin:0;padding:0;list-style:none}
.footer-links li+li{margin-top:9px}
.footer-links a{color:#b8cdc4;font-size:13px;transition:color .2s}
.footer-links a:hover{color:var(--gold)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);color:#8dac9f;font-size:12px}
.mobile-toggle{display:none;border:0;background:transparent;color:var(--pine-dark);font-size:26px}
@media (max-width:1024px){
  .feature-layout,.faq-layout{gap:38px}
  .latest-grid{grid-template-columns:1fr}
  .latest-side{display:grid;grid-template-columns:.75fr 1.25fr;gap:28px}
  .latest-side p{margin-bottom:0}
  .mini-rule{margin-top:0}
}
@media (max-width:768px){
  .container{width:min(100% - 32px, var(--container))}
  .nav-wrap{height:64px}
  .mobile-toggle{display:block}
  .nav-links{display:none}
  .age-pill{font-size:11px}
  .hero{min-height:530px;background-position:60% center}
  .hero-inner{padding:62px 0}
  .hero-copy{font-size:16px}
  .section{padding:64px 0}
  .section-head{display:block;margin-bottom:24px}
  .section-intro{margin-top:12px}
  .category-grid,.process-grid{grid-template-columns:1fr}
  .category-card{min-height:290px}
  .card-index{margin-bottom:40px}
  .feature-layout,.faq-layout{grid-template-columns:1fr}
  .feature-image{height:300px;order:2}
  .check-list{grid-template-columns:1fr}
  .signal-box{grid-template-columns:1fr 1fr}
  .signal:nth-child(2){border-right:0}
  .signal:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .latest-side{display:block}
  .latest-side p{margin-bottom:22px}
  .footer-main{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:520px){
  .age-pill{padding:5px 7px}
  .hero h1{font-size:39px}
  .hero-actions{display:grid;grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .post-item{grid-template-columns:40px 1fr;padding:18px 16px;gap:10px}
  .post-meta{grid-column:2;align-items:flex-start;flex-direction:row}
  .post-info p{display:none}
  .signal{padding:23px 16px}
  .cta{padding-bottom:64px}
  .cta-box{padding:37px 25px}
  .cta-box h2{font-size:30px}
  .footer-main{grid-template-columns:1fr;gap:25px}
  .footer-brand{grid-column:auto}
  .footer-bottom{display:block}
  .footer-bottom span+span{display:block;margin-top:5px}
}

/* roulang page: category1 */
:root {
      --bg: #101116;
      --surface: #181a21;
      --surface-soft: #20232d;
      --surface-light: #292d38;
      --text: #f7f7f4;
      --text-muted: #b3b8c3;
      --text-dim: #858b99;
      --primary: #ee5b45;
      --primary-dark: #c84232;
      --secondary: #f4b544;
      --line: rgba(255, 255, 255, 0.12);
      --line-strong: rgba(255, 255, 255, 0.2);
      --success: #78c59c;
      --shadow: 0 20px 48px rgba(0, 0, 0, 0.27);
      --radius: 8px;
      --radius-lg: 14px;
      --container: 1180px;
      --transition: 180ms ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-width: 320px;
      color: var(--text);
      background: var(--bg);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.72;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      display: block;
      width: 100%;
      max-width: 100%;
    }

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(244, 181, 68, 0.85);
      outline-offset: 3px;
    }

    .container {
      width: min(calc(100% - 48px), var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 30;
      background: rgba(16, 17, 22, 0.93);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(16px);
    }

    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      flex: 0 0 auto;
      gap: 10px;
      color: var(--text);
      font-size: 19px;
      font-weight: 800;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .logo-mark {
      width: 30px;
      height: 30px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #1a1110;
      background: var(--primary);
      border-radius: 50%;
      font-size: 12px;
      font-weight: 900;
      line-height: 1;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 4px;
    }

    .nav-links a {
      position: relative;
      padding: 9px 13px;
      color: var(--text-muted);
      border-radius: 6px;
      font-size: 14px;
      font-weight: 650;
      transition: color var(--transition), background var(--transition);
    }

    .nav-links a:hover,
    .nav-links a:focus-visible {
      color: var(--text);
      background: rgba(255, 255, 255, 0.07);
      outline: none;
    }

    .nav-links a.active {
      color: var(--text);
    }

    .nav-links a.active::after {
      position: absolute;
      right: 13px;
      bottom: 3px;
      left: 13px;
      height: 2px;
      content: "";
      background: var(--primary);
      border-radius: 4px;
    }

    .mobile-nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      color: var(--text);
      background: transparent;
      border: 1px solid var(--line-strong);
      border-radius: 6px;
    }

    .mobile-nav-toggle span,
    .mobile-nav-toggle span::before,
    .mobile-nav-toggle span::after {
      width: 18px;
      height: 2px;
      display: block;
      position: relative;
      background: currentColor;
      border-radius: 2px;
      content: "";
    }

    .mobile-nav-toggle span::before {
      position: absolute;
      top: -6px;
    }

    .mobile-nav-toggle span::after {
      position: absolute;
      top: 6px;
    }

    .hero {
      position: relative;
      isolation: isolate;
      min-height: 520px;
      overflow: hidden;
      background-image: linear-gradient(90deg, rgba(11, 12, 16, 0.94) 0%, rgba(11, 12, 16, 0.79) 48%, rgba(11, 12, 16, 0.47) 100%), url("/assets/images/backpic/back-1.webp");
      background-position: center;
      background-size: cover;
    }

    .hero::after {
      position: absolute;
      z-index: -1;
      right: -100px;
      bottom: -120px;
      width: 390px;
      height: 390px;
      content: "";
      border: 1px solid rgba(244, 181, 68, 0.25);
      border-radius: 50%;
      box-shadow: 0 0 0 48px rgba(238, 91, 69, 0.05), 0 0 0 96px rgba(244, 181, 68, 0.035);
    }

    .hero-content {
      min-height: 520px;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      justify-content: center;
      max-width: 765px;
      padding: 70px 0 82px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin: 0 0 18px;
      color: #ffe1a0;
      font-size: 13px;
      font-weight: 750;
      letter-spacing: 0;
    }

    .eyebrow::before {
      width: 25px;
      height: 1px;
      content: "";
      background: var(--secondary);
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    h1 {
      max-width: 750px;
      margin-bottom: 20px;
      font-size: clamp(38px, 5vw, 64px);
      font-weight: 850;
      letter-spacing: 0;
      line-height: 1.13;
    }

    .hero-copy {
      max-width: 670px;
      margin-bottom: 30px;
      color: #d8dbe0;
      font-size: 18px;
      line-height: 1.85;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .button {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 20px;
      border: 1px solid transparent;
      border-radius: 6px;
      font-size: 15px;
      font-weight: 750;
      line-height: 1;
      transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
    }

    .button:hover {
      transform: translateY(-2px);
    }

    .button:active {
      transform: translateY(0);
    }

    .button-primary {
      color: #1d1311;
      background: var(--primary);
      box-shadow: 0 10px 24px rgba(238, 91, 69, 0.28);
    }

    .button-primary:hover {
      background: #fa765f;
      box-shadow: 0 14px 30px rgba(238, 91, 69, 0.36);
    }

    .button-secondary {
      color: var(--text);
      background: rgba(17, 19, 25, 0.52);
      border-color: rgba(255, 255, 255, 0.26);
    }

    .button-secondary:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.48);
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 88px 0;
    }

    .section-soft {
      background: var(--surface);
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 34px;
    }

    .section-kicker {
      margin-bottom: 9px;
      color: var(--secondary);
      font-size: 13px;
      font-weight: 750;
    }

    h2 {
      margin-bottom: 0;
      font-size: clamp(28px, 3.2vw, 40px);
      font-weight: 820;
      letter-spacing: 0;
      line-height: 1.25;
    }

    .section-intro {
      max-width: 465px;
      margin: 0;
      color: var(--text-muted);
      font-size: 15px;
    }

    .filter-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding-top: 26px;
      border-top: 1px solid var(--line);
    }

    .filter-chip {
      display: inline-flex;
      align-items: center;
      min-height: 35px;
      padding: 7px 13px;
      color: var(--text-muted);
      background: var(--surface-soft);
      border: 1px solid var(--line);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 650;
      transition: color var(--transition), background var(--transition), border-color var(--transition);
    }

    .filter-chip:hover,
    .filter-chip.active {
      color: #211813;
      background: var(--secondary);
      border-color: var(--secondary);
    }

    .featured-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.86fr);
      gap: 22px;
    }

    .feature-card {
      position: relative;
      min-height: 430px;
      display: flex;
      align-items: flex-end;
      overflow: hidden;
      background: var(--surface-light);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
    }

    .feature-card img {
      position: absolute;
      inset: 0;
      height: 100%;
      object-fit: cover;
      opacity: 0.78;
      transition: transform 450ms ease;
    }

    .feature-card:hover img {
      transform: scale(1.045);
    }

    .feature-card::after {
      position: absolute;
      inset: 0;
      content: "";
      background: linear-gradient(180deg, rgba(8, 9, 12, 0.03) 10%, rgba(8, 9, 12, 0.91) 95%);
    }

    .feature-content {
      position: relative;
      z-index: 1;
      width: 100%;
      padding: 31px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 27px;
      padding: 5px 9px;
      color: #22140f;
      background: var(--secondary);
      border-radius: 4px;
      font-size: 12px;
      font-weight: 800;
      line-height: 1;
    }

    .feature-content h3 {
      margin: 15px 0 8px;
      font-size: 28px;
      font-weight: 800;
      line-height: 1.28;
    }

    .feature-content p {
      max-width: 590px;
      margin-bottom: 19px;
      color: #d3d6dd;
      font-size: 15px;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #fff;
      font-size: 14px;
      font-weight: 750;
      transition: color var(--transition), gap var(--transition);
    }

    .text-link::after {
      content: "→";
      font-size: 18px;
      line-height: 1;
    }

    .text-link:hover {
      gap: 12px;
      color: var(--secondary);
    }

    .side-highlights {
      display: grid;
      gap: 22px;
    }

    .highlight-card {
      min-height: 204px;
      padding: 26px;
      background: var(--surface-light);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      transition: transform var(--transition), border-color var(--transition), background var(--transition);
    }

    .highlight-card:hover {
      transform: translateY(-4px);
      background: #2d313d;
      border-color: rgba(244, 181, 68, 0.55);
    }

    .card-number {
      display: block;
      margin-bottom: 22px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 850;
    }

    .highlight-card h3 {
      margin-bottom: 8px;
      font-size: 20px;
      line-height: 1.35;
    }

    .highlight-card p {
      margin: 0;
      color: var(--text-muted);
      font-size: 14px;
    }

    .benefit-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .benefit-card {
      padding: 28px;
      background: var(--bg);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }

    .benefit-card:hover {
      transform: translateY(-4px);
      border-color: rgba(238, 91, 69, 0.62);
      box-shadow: 0 15px 32px rgba(0, 0, 0, 0.18);
    }

    .icon-box {
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 22px;
      color: var(--secondary);
      background: rgba(244, 181, 68, 0.12);
      border: 1px solid rgba(244, 181, 68, 0.24);
      border-radius: 6px;
      font-size: 19px;
      font-weight: 850;
    }

    .benefit-card h3 {
      margin-bottom: 8px;
      font-size: 19px;
      line-height: 1.35;
    }

    .benefit-card p {
      margin: 0;
      color: var(--text-muted);
      font-size: 14px;
    }

    .split-panel {
      display: grid;
      grid-template-columns: minmax(0, 0.94fr) minmax(310px, 1.06fr);
      gap: 70px;
      align-items: center;
    }

    .image-frame {
      position: relative;
      overflow: hidden;
      min-height: 430px;
      background: var(--surface-light);
      border-radius: var(--radius-lg);
    }

    .image-frame img {
      height: 430px;
      object-fit: cover;
    }

    .image-label {
      position: absolute;
      right: 18px;
      bottom: 18px;
      left: 18px;
      padding: 15px 17px;
      color: #fafafa;
      background: rgba(13, 14, 18, 0.78);
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: 6px;
      backdrop-filter: blur(10px);
      font-size: 14px;
      font-weight: 650;
    }

    .split-copy h2 {
      margin-bottom: 17px;
    }

    .split-copy > p {
      color: var(--text-muted);
      font-size: 16px;
    }

    .check-list {
      display: grid;
      gap: 15px;
      padding: 0;
      margin: 27px 0 0;
      list-style: none;
    }

    .check-list li {
      position: relative;
      padding-left: 32px;
      color: #d9dce2;
      font-size: 15px;
    }

    .check-list li::before {
      position: absolute;
      top: 4px;
      left: 0;
      width: 18px;
      height: 18px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #161719;
      content: "✓";
      background: var(--success);
      border-radius: 50%;
      font-size: 12px;
      font-weight: 900;
      line-height: 1;
    }

    .steps {
      counter-reset: step;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      overflow: hidden;
      background: var(--line);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
    }

    .step {
      min-height: 220px;
      padding: 31px 28px;
      background: var(--surface);
    }

    .step::before {
      display: block;
      margin-bottom: 24px;
      color: var(--primary);
      content: "0" counter(step);
      counter-increment: step;
      font-size: 15px;
      font-weight: 900;
    }

    .step h3 {
      margin-bottom: 8px;
      font-size: 20px;
      line-height: 1.35;
    }

    .step p {
      margin: 0;
      color: var(--text-muted);
      font-size: 14px;
    }

    .notice {
      display: flex;
      gap: 18px;
      align-items: flex-start;
      margin-top: 30px;
      padding: 18px 20px;
      color: #d9dce1;
      background: rgba(244, 181, 68, 0.08);
      border: 1px solid rgba(244, 181, 68, 0.2);
      border-radius: var(--radius);
      font-size: 14px;
    }

    .notice strong {
      flex: 0 0 auto;
      color: #ffd875;
    }

    .faq-list {
      border-top: 1px solid var(--line);
    }

    .faq-item {
      border-bottom: 1px solid var(--line);
    }

    .faq-item summary {
      position: relative;
      padding: 22px 48px 22px 0;
      color: var(--text);
      cursor: pointer;
      font-size: 17px;
      font-weight: 750;
      list-style: none;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      position: absolute;
      top: 18px;
      right: 0;
      width: 29px;
      height: 29px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary);
      content: "+";
      border: 1px solid var(--line-strong);
      border-radius: 50%;
      font-size: 21px;
      font-weight: 400;
      line-height: 1;
      transition: transform var(--transition), background var(--transition);
    }

    .faq-item[open] summary::after {
      transform: rotate(45deg);
      background: rgba(244, 181, 68, 0.1);
    }

    .faq-answer {
      max-width: 820px;
      padding: 0 0 23px;
      color: var(--text-muted);
      font-size: 15px;
    }

    .faq-answer p {
      margin: 0;
    }

    .cta-section {
      padding: 0 0 88px;
      background: var(--surface);
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: 54px 58px;
      background: #bf4939;
      border-radius: var(--radius-lg);
    }

    .cta-panel::after {
      position: absolute;
      top: -135px;
      right: -115px;
      width: 360px;
      height: 360px;
      content: "";
      border: 58px solid rgba(255, 255, 255, 0.09);
      border-radius: 50%;
    }

    .cta-content {
      position: relative;
      z-index: 1;
      max-width: 720px;
    }

    .cta-content h2 {
      margin-bottom: 13px;
      color: #fff;
    }

    .cta-content p {
      margin-bottom: 24px;
      color: rgba(255, 255, 255, 0.86);
      font-size: 16px;
    }

    .button-light {
      color: #552019;
      background: #fff6e6;
    }

    .button-light:hover {
      color: #36130e;
      background: #fff;
      box-shadow: 0 12px 28px rgba(77, 22, 14, 0.18);
    }

    .site-footer {
      color: #b9bec8;
      background: #0b0c10;
    }

    .footer-main {
      display: grid;
      grid-template-columns: 1.65fr 1fr 1fr;
      gap: 56px;
      padding-top: 58px;
      padding-bottom: 48px;
    }

    .footer-brand p {
      max-width: 395px;
      margin: 17px 0 0;
      color: #9298a5;
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-title {
      margin-bottom: 15px;
      color: #f0f1f3;
      font-size: 14px;
      font-weight: 800;
    }

    .footer-links {
      display: grid;
      gap: 9px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .footer-links a {
      color: #a9afba;
      font-size: 14px;
      transition: color var(--transition);
    }

    .footer-links a:hover {
      color: var(--secondary);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding-top: 19px;
      padding-bottom: 20px;
      color: #777e8b;
      border-top: 1px solid rgba(255, 255, 255, 0.09);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .featured-grid {
        grid-template-columns: 1.1fr 0.9fr;
      }

      .split-panel {
        gap: 40px;
      }

      .cta-panel {
        padding: 46px;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(calc(100% - 36px), var(--container));
      }

      .header-inner {
        min-height: 64px;
      }

      .mobile-nav-toggle {
        display: inline-flex;
      }

      .nav-links {
        position: absolute;
        top: calc(100% + 1px);
        right: 0;
        left: 0;
        display: none;
        align-items: stretch;
        flex-direction: column;
        gap: 3px;
        padding: 12px 18px 16px;
        background: #15171d;
        border-bottom: 1px solid var(--line);
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links a {
        padding: 11px 12px;
      }

      .nav-links a.active::after {
        top: 10px;
        right: auto;
        bottom: 10px;
        left: 0;
        width: 3px;
        height: auto;
      }

      .hero,
      .hero-content {
        min-height: 480px;
      }

      .hero {
        background-image: linear-gradient(90deg, rgba(11, 12, 16, 0.95) 0%, rgba(11, 12, 16, 0.78) 100%), url("/assets/images/backpic/back-1.webp");
      }

      .hero-content {
        padding: 60px 0 68px;
      }

      .hero-copy {
        font-size: 16px;
      }

      .section {
        padding: 66px 0;
      }

      .section-head {
        display: block;
        margin-bottom: 28px;
      }

      .section-intro {
        margin-top: 13px;
      }

      .featured-grid,
      .split-panel {
        grid-template-columns: 1fr;
      }

      .side-highlights {
        grid-template-columns: repeat(2, 1fr);
      }

      .benefit-grid {
        grid-template-columns: 1fr;
      }

      .steps {
        grid-template-columns: 1fr;
      }

      .step {
        min-height: 0;
      }

      .image-frame,
      .image-frame img {
        min-height: 330px;
        height: 330px;
      }

      .footer-main {
        grid-template-columns: 1.4fr 1fr;
        gap: 34px;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 520px) {
      .container {
        width: min(calc(100% - 30px), var(--container));
      }

      .logo {
        font-size: 16px;
      }

      .logo-mark {
        width: 27px;
        height: 27px;
        font-size: 11px;
      }

      h1 {
        font-size: 36px;
      }

      .hero,
      .hero-content {
        min-height: 470px;
      }

      .hero-actions,
      .hero-actions .button {
        width: 100%;
      }

      .feature-card {
        min-height: 390px;
      }

      .feature-content {
        padding: 23px;
      }

      .feature-content h3 {
        font-size: 24px;
      }

      .side-highlights {
        grid-template-columns: 1fr;
      }

      .highlight-card,
      .benefit-card {
        padding: 23px;
      }

      .filter-row {
        gap: 8px;
      }

      .filter-chip {
        padding: 6px 11px;
      }

      .cta-section {
        padding-bottom: 66px;
      }

      .cta-panel {
        padding: 34px 25px;
      }

      .cta-panel::after {
        top: -170px;
        right: -190px;
      }

      .footer-main {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-top: 46px;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-bottom {
        flex-direction: column;
        gap: 4px;
      }
    }

/* roulang page: article */
:root{
      --bg:#0b0f14;
      --bg-soft:#101720;
      --panel:#121b26;
      --panel-2:#162131;
      --line:rgba(255,255,255,.08);
      --line-strong:rgba(255,255,255,.14);
      --text:#eef4fb;
      --muted:#9fb1c5;
      --muted-2:#7f92a8;
      --primary:#ff4d6d;
      --primary-2:#ff7a59;
      --accent:#7c5cff;
      --accent-2:#24d3ee;
      --success:#24c08a;
      --warning:#f5b84b;
      --shadow:0 24px 60px rgba(0,0,0,.32);
      --shadow-soft:0 12px 30px rgba(0,0,0,.22);
      --radius:22px;
      --radius-sm:14px;
      --radius-lg:30px;
      --container:1180px;
      --space:clamp(18px,2.4vw,30px);
      --transition:.24s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,77,109,.14), transparent 32%),
        radial-gradient(circle at top right, rgba(124,92,255,.12), transparent 30%),
        linear-gradient(180deg, #0a0f15 0%, #0d131c 100%);
      font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height:1.7;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      background-image:url('/assets/images/backpic/back-1.webp');
      background-size:cover;
      background-position:center top;
      opacity:.04;
      pointer-events:none;
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      background:linear-gradient(180deg, rgba(11,15,20,.16), rgba(11,15,20,.58));
      pointer-events:none;
      z-index:-1;
    }
    img{
      max-width:100%;
      display:block;
      border:0;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color var(--transition), opacity var(--transition), transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    button,input,textarea,select{
      font:inherit;
    }
    ::selection{
      background:rgba(255,77,109,.28);
      color:#fff;
    }
    :focus-visible{
      outline:3px solid rgba(36,211,238,.75);
      outline-offset:2px;
    }
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      backdrop-filter:saturate(180%) blur(18px);
      background:rgba(10,15,21,.76);
      border-bottom:1px solid var(--line);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:12px 0;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:12px;
      font-weight:800;
      letter-spacing:.02em;
      color:#fff;
      white-space:nowrap;
    }
    .logo:hover{opacity:.92; transform:translateY(-1px)}
    .logo-mark{
      width:36px;
      height:36px;
      display:inline-grid;
      place-items:center;
      border-radius:12px;
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow:0 12px 28px rgba(255,77,109,.28);
      font-size:14px;
      flex:none;
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:16px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      background:transparent;
      font-weight:600;
      font-size:14px;
      letter-spacing:.01em;
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.04);
      border-color:var(--line);
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(255,77,109,.18), rgba(124,92,255,.18));
      border-color:rgba(255,255,255,.12);
      box-shadow:0 10px 24px rgba(0,0,0,.18);
    }
    .nav-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:13px;
    }
    .nav-dot{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--success);
      box-shadow:0 0 0 6px rgba(36,192,138,.12);
    }
    main{position:relative}
    .hero{
      position:relative;
      padding:44px 0 34px;
    }
    .hero-panel{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow);
      background:
        linear-gradient(135deg, rgba(7,12,19,.82), rgba(12,17,25,.66)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 20% 10%, rgba(255,77,109,.18), transparent 26%),
                 radial-gradient(circle at 80% 0%, rgba(36,211,238,.14), transparent 24%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.35fr) minmax(280px,.85fr);
      gap:24px;
      padding:clamp(24px,4vw,42px);
      align-items:end;
    }
    .crumb{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:16px;
    }
    .crumb span,
    .tag,
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:30px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:12px;
      font-weight:600;
      letter-spacing:.02em;
    }
    .badge-hot{
      background:linear-gradient(135deg, rgba(255,77,109,.22), rgba(255,122,89,.18));
      color:#fff;
      border-color:rgba(255,77,109,.24);
    }
    .hero h1{
      margin:0;
      font-size:clamp(30px,5vw,58px);
      line-height:1.06;
      letter-spacing:-.03em;
    }
    .hero-lead{
      margin:18px 0 0;
      font-size:clamp(15px,1.5vw,18px);
      color:#d5deea;
      max-width:42rem;
    }
    .hero-actions{
      margin-top:24px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 20px;
      border-radius:14px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.01em;
      cursor:pointer;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
      user-select:none;
    }
    .btn:hover{transform:translateY(-1px); box-shadow:0 14px 30px rgba(0,0,0,.22)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow:0 16px 30px rgba(255,77,109,.22);
    }
    .btn-secondary{
      color:#fff;
      background:rgba(255,255,255,.05);
      border-color:var(--line);
    }
    .hero-side{
      display:grid;
      gap:16px;
    }
    .hero-card,
    .panel-card,
    .article-card,
    .side-card,
    .faq-card,
    .cta-panel,
    .empty-card{
      background:linear-gradient(180deg, rgba(18,27,38,.94), rgba(14,21,31,.96));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .hero-info{
      padding:18px;
    }
    .hero-thumb{
      position:relative;
      overflow:hidden;
      aspect-ratio:16/10;
      border-top-left-radius:var(--radius);
      border-top-right-radius:var(--radius);
    }
    .hero-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease, filter .45s ease;
      filter:saturate(1.04) contrast(1.02);
    }
    .hero-card:hover .hero-thumb img{transform:scale(1.04)}
    .hero-stat-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      margin-top:14px;
    }
    .stat{
      padding:12px 10px;
      border-radius:16px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      text-align:center;
    }
    .stat strong{
      display:block;
      font-size:18px;
      line-height:1.1;
      color:#fff;
    }
    .stat span{
      display:block;
      margin-top:5px;
      color:var(--muted);
      font-size:12px;
    }
    .section{
      padding:26px 0;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(22px,2.8vw,34px);
      line-height:1.15;
      letter-spacing:-.02em;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:38rem;
    }
    .article-shell{
      padding:10px 0 8px;
    }
    .article-grid{
      display:grid;
      grid-template-columns:minmax(0,1.6fr) minmax(280px,.88fr);
      gap:24px;
      align-items:start;
    }
    .article-card{
      padding:clamp(18px,2.6vw,28px);
      overflow:hidden;
    }
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:18px;
    }
    .article-meta .tag{
      color:#dbe5f2;
      background:rgba(255,255,255,.05);
    }
    .article-title{
      margin:0 0 10px;
      font-size:clamp(24px,3.2vw,40px);
      line-height:1.12;
      letter-spacing:-.03em;
    }
    .article-subtitle{
      margin:0 0 20px;
      color:#cfd8e5;
      font-size:16px;
    }
    .article-body{
      color:#eaf1fb;
      font-size:16px;
      line-height:1.86;
    }
    .article-body h2,
    .article-body h3,
    .article-body h4{
      margin:1.8em 0 .8em;
      line-height:1.22;
      letter-spacing:-.02em;
    }
    .article-body h2{font-size:1.45em}
    .article-body h3{font-size:1.22em}
    .article-body p{margin:.9em 0}
    .article-body a{
      color:#8be1ff;
      text-decoration:underline;
      text-underline-offset:3px;
    }
    .article-body a:hover{color:#c7f3ff}
    .article-body ul,
    .article-body ol{
      padding-left:1.25em;
      margin:1em 0;
    }
    .article-body li{margin:.42em 0}
    .article-body blockquote{
      margin:1.4em 0;
      padding:18px 18px 18px 20px;
      border-left:4px solid var(--primary);
      background:rgba(255,255,255,.04);
      border-radius:16px;
      color:#dce7f4;
    }
    .article-body img{
      border-radius:18px;
      margin:1.2em 0;
      width:100%;
      height:auto;
      box-shadow:0 18px 40px rgba(0,0,0,.22);
    }
    .article-body hr{
      border:0;
      border-top:1px solid var(--line);
      margin:1.6em 0;
    }
    .article-footer{
      margin-top:24px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      justify-content:space-between;
      padding-top:18px;
      border-top:1px solid var(--line);
    }
    .meta-list{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .meta-list .tag{
      background:rgba(124,92,255,.12);
      color:#e7e2ff;
      border-color:rgba(124,92,255,.18);
    }
    .sidebar{
      display:grid;
      gap:16px;
      position:sticky;
      top:94px;
    }
    .side-card{
      overflow:hidden;
    }
    .side-card-inner{
      padding:18px;
    }
    .cover-frame{
      position:relative;
      aspect-ratio:16/10;
      overflow:hidden;
    }
    .cover-frame img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .side-card:hover .cover-frame img{transform:scale(1.04)}
    .side-title{
      margin:0 0 10px;
      font-size:18px;
      line-height:1.35;
    }
    .side-desc{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .check-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .check-list li{
      position:relative;
      padding-left:24px;
      color:#dbe5f2;
      font-size:14px;
    }
    .check-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:.55em;
      width:12px;
      height:12px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow:0 0 0 4px rgba(255,77,109,.08);
    }
    .mini-actions{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .mini-actions .btn{
      min-height:42px;
      padding:0 16px;
      font-size:14px;
      border-radius:12px;
    }
    .cards-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .content-card{
      overflow:hidden;
      display:flex;
      flex-direction:column;
      min-height:100%;
      background:linear-gradient(180deg, rgba(18,27,38,.94), rgba(14,21,31,.96));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .content-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,255,255,.14);
      box-shadow:0 18px 38px rgba(0,0,0,.24);
    }
    .content-card .thumb{
      position:relative;
      aspect-ratio:16/10;
      overflow:hidden;
    }
    .content-card .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease, filter .45s ease;
    }
    .content-card:hover .thumb img{transform:scale(1.06)}
    .content-card .content{
      padding:18px;
      display:grid;
      gap:10px;
      flex:1;
    }
    .content-card h3{
      margin:0;
      font-size:19px;
      line-height:1.3;
    }
    .content-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.78;
    }
    .content-card .link-row{
      margin-top:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:#fff;
      font-weight:700;
    }
    .content-card .link-row span{
      color:var(--muted);
      font-size:13px;
      font-weight:600;
    }
    .faq-grid{
      display:grid;
      gap:14px;
    }
    .faq-card{
      padding:18px 20px;
    }
    .faq-card summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      font-weight:700;
      color:#fff;
      font-size:16px;
    }
    .faq-card summary::-webkit-details-marker{display:none}
    .faq-card summary::after{
      content:"+";
      width:32px;
      height:32px;
      display:grid;
      place-items:center;
      border-radius:10px;
      background:rgba(255,255,255,.05);
      border:1px solid var(--line);
      color:#fff;
      flex:none;
      transition:transform var(--transition), background var(--transition);
    }
    .faq-card[open] summary::after{
      content:"–";
      background:rgba(255,77,109,.12);
    }
    .faq-card p{
      margin:12px 0 0;
      color:var(--muted);
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      padding:clamp(22px,3vw,32px);
      background:
        linear-gradient(135deg, rgba(255,77,109,.14), rgba(124,92,255,.10)),
        linear-gradient(180deg, rgba(18,27,38,.94), rgba(14,21,31,.96));
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      inset:auto -20% -60% auto;
      width:280px;
      height:280px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(36,211,238,.18), transparent 62%);
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) auto;
      gap:20px;
      align-items:center;
    }
    .cta-inner h2{
      margin:0 0 10px;
      font-size:clamp(24px,3vw,36px);
      line-height:1.15;
    }
    .cta-inner p{
      margin:0;
      color:#d4deeb;
      max-width:48rem;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .empty-state{
      padding:44px 0 64px;
    }
    .empty-card{
      padding:clamp(24px,4vw,44px);
      text-align:center;
    }
    .empty-card h1{
      margin:0 0 10px;
      font-size:clamp(28px,4vw,42px);
      line-height:1.12;
    }
    .empty-card p{
      margin:0 0 20px;
      color:var(--muted);
    }
    .site-footer{
      margin-top:34px;
      padding:34px 0 20px;
      background:linear-gradient(180deg, rgba(8,12,18,.2), rgba(8,12,18,.9));
      border-top:1px solid var(--line);
    }
    .footer-main{
      display:grid;
      grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,.8fr));
      gap:24px;
      padding-bottom:22px;
    }
    .footer-brand p{
      margin:14px 0 0;
      color:var(--muted);
      max-width:30rem;
    }
    .footer-title{
      margin:0 0 12px;
      font-size:15px;
      color:#fff;
      font-weight:700;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      padding-left:4px;
    }
    .footer-bottom{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:space-between;
      align-items:center;
      padding-top:18px;
      border-top:1px solid var(--line);
      color:var(--muted-2);
      font-size:13px;
    }
    .glass{
      backdrop-filter:blur(12px);
    }
    @media (max-width: 1080px){
      .hero-inner,
      .article-grid,
      .cta-inner,
      .footer-main{
        grid-template-columns:1fr;
      }
      .sidebar{
        position:static;
      }
      .cards-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .section-head{
        align-items:start;
        flex-direction:column;
      }
      .hero-side{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
    }
    @media (max-width: 768px){
      .header-inner{
        flex-direction:column;
        align-items:flex-start;
        gap:14px;
      }
      .nav-wrap{
        width:100%;
        justify-content:flex-start;
      }
      .nav-links{
        width:100%;
        overflow:auto;
        padding-bottom:4px;
        flex-wrap:nowrap;
        -webkit-overflow-scrolling:touch;
      }
      .nav-links a{
        flex:none;
      }
      .hero{
        padding-top:24px;
      }
      .hero-inner{
        padding:20px;
      }
      .hero-side{
        grid-template-columns:1fr;
      }
      .hero-stat-grid{
        grid-template-columns:1fr 1fr 1fr;
      }
      .cards-grid{
        grid-template-columns:1fr;
      }
      .article-card,
      .side-card,
      .faq-card,
      .cta-panel{
        border-radius:18px;
      }
      .cta-actions,
      .article-footer{
        justify-content:flex-start;
      }
    }
    @media (max-width: 520px){
      .container{
        width:min(var(--container), calc(100% - 22px));
      }
      .hero h1,
      .article-title,
      .empty-card h1{
        letter-spacing:-.02em;
      }
      .hero-stat-grid{
        grid-template-columns:1fr;
      }
      .nav-pill{
        width:100%;
        justify-content:center;
      }
      .btn{
        width:100%;
      }
      .hero-actions,
      .mini-actions,
      .cta-actions{
        flex-direction:column;
      }
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#0d0f17;
      --bg-soft:#151824;
      --bg-card:#1d2130;
      --bg-elevated:#24293a;
      --primary:#ff4d6d;
      --primary-strong:#ff2f58;
      --secondary:#8b5cf6;
      --accent:#22d3ee;
      --text:#f7f8fc;
      --muted:#aab1c5;
      --muted-2:#7f879c;
      --line:rgba(255,255,255,.10);
      --line-strong:rgba(255,255,255,.16);
      --shadow:0 24px 70px rgba(0,0,0,.36);
      --shadow-soft:0 14px 36px rgba(0,0,0,.22);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --container:1180px;
      --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 8% 8%, rgba(255,77,109,.18), transparent 30%),
        radial-gradient(circle at 88% 14%, rgba(139,92,246,.16), transparent 34%),
        linear-gradient(180deg,#0d0f17 0%,#111420 48%,#0d0f17 100%);
      line-height:1.7;
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:rgba(255,77,109,.35);color:#fff}

    .container{
      width:min(100% - 40px,var(--container));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(13,15,23,.78);
      border-bottom:1px solid var(--line);
    }
    .header-inner{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:26px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-weight:900;
      letter-spacing:-.03em;
      font-size:20px;
      white-space:nowrap;
    }
    .logo-mark{
      display:grid;
      place-items:center;
      width:40px;
      height:40px;
      border-radius:13px;
      color:#fff;
      font-size:15px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 30px rgba(255,77,109,.26);
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      padding:7px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.045);
    }
    .nav-links a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 18px;
      border-radius:999px;
      color:var(--muted);
      font-weight:700;
      font-size:14px;
      transition:.22s ease;
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(255,77,109,.95),rgba(139,92,246,.95));
      box-shadow:0 10px 24px rgba(255,77,109,.22);
    }
    .header-note{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--muted);
      font-size:13px;
      white-space:nowrap;
      padding:10px 14px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.035);
    }
    .header-note::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:#34d399;
      box-shadow:0 0 0 5px rgba(52,211,153,.12);
    }

    .hero{
      position:relative;
      padding:82px 0 54px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(13,15,23,.92),rgba(13,15,23,.74),rgba(13,15,23,.94)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.72;
      z-index:-2;
    }
    .hero::after{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      border-radius:50%;
      right:-190px;
      top:40px;
      background:radial-gradient(circle,rgba(255,77,109,.22),transparent 68%);
      filter:blur(8px);
      z-index:-1;
    }
    .hero-panel{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:42px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.18);
      color:#ffd8e0;
      background:rgba(255,255,255,.07);
      font-size:13px;
      font-weight:800;
      margin-bottom:18px;
    }
    .eyebrow::before{
      content:"18+";
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:38px;
      height:24px;
      border-radius:999px;
      color:#fff;
      background:var(--primary);
      font-size:12px;
      letter-spacing:.02em;
    }
    h1{
      max-width:860px;
      font-size:clamp(38px,5vw,70px);
      line-height:1.04;
      letter-spacing:-.06em;
      margin-bottom:22px;
    }
    .hero-lead{
      max-width:760px;
      color:#d8ddeb;
      font-size:18px;
      line-height:1.9;
      margin-bottom:28px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
      margin-bottom:30px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 22px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      cursor:pointer;
      transition:.22s ease;
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 16px 38px rgba(255,77,109,.28);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 22px 48px rgba(255,77,109,.34);
    }
    .btn-ghost{
      color:#fff;
      background:rgba(255,255,255,.055);
      border-color:rgba(255,255,255,.18);
    }
    .btn-ghost:hover{
      background:rgba(255,255,255,.10);
      transform:translateY(-2px);
    }
    .btn:focus-visible,
    .nav-links a:focus-visible,
    .footer-links a:focus-visible,
    .quick-card:focus-visible{
      outline:3px solid rgba(34,211,238,.45);
      outline-offset:3px;
    }

    .hero-badges{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#dfe4f3;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      font-size:13px;
      font-weight:700;
    }
    .badge i{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(34,211,238,.12);
    }

    .visual-card{
      position:relative;
      border-radius:var(--radius-lg);
      overflow:hidden;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.16);
      box-shadow:var(--shadow);
      min-height:440px;
    }
    .visual-card img{
      width:100%;
      height:440px;
      object-fit:cover;
      filter:saturate(1.04) contrast(1.05);
    }
    .visual-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 28%,rgba(13,15,23,.92) 100%);
    }
    .visual-caption{
      position:absolute;
      left:24px;
      right:24px;
      bottom:24px;
      z-index:2;
      display:grid;
      gap:14px;
    }
    .caption-row{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
    }
    .caption-chip{
      padding:7px 10px;
      border-radius:999px;
      color:#fff;
      font-size:12px;
      font-weight:900;
      background:rgba(255,77,109,.72);
      border:1px solid rgba(255,255,255,.18);
    }
    .visual-caption strong{
      font-size:24px;
      line-height:1.25;
      letter-spacing:-.03em;
    }
    .visual-caption p{
      color:#cfd5e8;
      font-size:14px;
    }

    main{position:relative}
    .section{
      padding:74px 0;
    }
    .section-tight{
      padding:54px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-kicker{
      color:var(--primary);
      font-weight:900;
      font-size:14px;
      margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,3.4vw,46px);
      line-height:1.14;
      letter-spacing:-.045em;
      max-width:760px;
    }
    .section-desc{
      color:var(--muted);
      max-width:520px;
      font-size:16px;
    }

    .feature-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .feature-card{
      padding:24px;
      border-radius:var(--radius-md);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      transition:.22s ease;
    }
    .feature-card:hover{
      transform:translateY(-5px);
      border-color:rgba(255,77,109,.35);
      background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.045));
    }
    .icon-box{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      margin-bottom:16px;
      color:#fff;
      font-weight:900;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 14px 32px rgba(255,77,109,.20);
    }
    .feature-card h3{
      font-size:20px;
      letter-spacing:-.03em;
      margin-bottom:10px;
    }
    .feature-card p{
      color:var(--muted);
      font-size:15px;
    }

    .split{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:34px;
      align-items:center;
    }
    .image-frame{
      position:relative;
      border-radius:var(--radius-lg);
      overflow:hidden;
      border:1px solid var(--line-strong);
      box-shadow:var(--shadow);
      background:var(--bg-card);
    }
    .image-frame img{
      width:100%;
      height:470px;
      object-fit:cover;
    }
    .image-frame .image-tag{
      position:absolute;
      left:18px;
      bottom:18px;
      padding:10px 13px;
      border-radius:999px;
      color:#fff;
      font-weight:900;
      font-size:13px;
      background:rgba(13,15,23,.72);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(12px);
    }
    .info-panel{
      padding:34px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.055);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .info-panel h2{
      font-size:clamp(28px,3vw,42px);
      line-height:1.16;
      letter-spacing:-.045em;
      margin-bottom:18px;
    }
    .info-panel p{
      color:#c9d0e2;
      margin-bottom:20px;
    }
    .check-list{
      display:grid;
      gap:12px;
      margin-top:20px;
    }
    .check-list li{
      list-style:none;
      display:flex;
      gap:12px;
      align-items:flex-start;
      color:#d9def0;
      padding:14px;
      border-radius:var(--radius-sm);
      background:rgba(255,255,255,.045);
      border:1px solid var(--line);
    }
    .check-list li::before{
      content:"";
      flex:0 0 18px;
      width:18px;
      height:18px;
      margin-top:4px;
      border-radius:50%;
      background:
        linear-gradient(135deg,var(--accent),#34d399);
      box-shadow:0 0 0 5px rgba(34,211,238,.10);
    }

    .scene-wrap{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .scene-card{
      min-height:210px;
      padding:22px;
      border-radius:var(--radius-md);
      background:var(--bg-card);
      border:1px solid var(--line);
      position:relative;
      overflow:hidden;
      transition:.22s ease;
    }
    .scene-card::before{
      content:"";
      position:absolute;
      width:160px;
      height:160px;
      border-radius:50%;
      right:-70px;
      top:-70px;
      background:rgba(255,77,109,.18);
      transition:.22s ease;
    }
    .scene-card:hover{
      transform:translateY(-4px);
      border-color:rgba(139,92,246,.36);
      box-shadow:var(--shadow-soft);
    }
    .scene-card:hover::before{
      transform:scale(1.15);
      background:rgba(139,92,246,.20);
    }
    .scene-card span{
      display:inline-flex;
      width:34px;
      height:34px;
      align-items:center;
      justify-content:center;
      border-radius:12px;
      background:rgba(255,255,255,.08);
      color:#fff;
      font-weight:900;
      margin-bottom:28px;
    }
    .scene-card h3{
      font-size:18px;
      margin-bottom:10px;
      letter-spacing:-.02em;
      position:relative;
      z-index:1;
    }
    .scene-card p{
      color:var(--muted);
      font-size:14px;
      position:relative;
      z-index:1;
    }

    .process{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .step-card{
      position:relative;
      padding:26px;
      border-radius:var(--radius-md);
      border:1px solid var(--line);
      background:
        linear-gradient(145deg,rgba(255,77,109,.09),transparent 38%),
        rgba(255,255,255,.045);
    }
    .step-number{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;
      height:42px;
      border-radius:50%;
      background:#fff;
      color:#111420;
      font-weight:950;
      margin-bottom:18px;
    }
    .step-card h3{
      font-size:19px;
      margin-bottom:10px;
    }
    .step-card p{
      color:var(--muted);
      font-size:15px;
    }

    .quick-area{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .quick-card{
      display:grid;
      grid-template-columns:180px 1fr;
      gap:18px;
      align-items:center;
      padding:16px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.055);
      border:1px solid var(--line);
      transition:.22s ease;
    }
    .quick-card:hover{
      transform:translateY(-4px);
      border-color:rgba(255,77,109,.34);
      box-shadow:var(--shadow-soft);
    }
    .quick-card img{
      height:150px;
      width:100%;
      object-fit:cover;
      border-radius:20px;
    }
    .quick-card h3{
      font-size:22px;
      letter-spacing:-.03em;
      margin-bottom:8px;
    }
    .quick-card p{
      color:var(--muted);
      font-size:15px;
      margin-bottom:14px;
    }
    .inline-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#fff;
      font-weight:900;
    }
    .inline-link::after{
      content:"→";
      color:var(--primary);
      transition:.22s ease;
    }
    .quick-card:hover .inline-link::after{
      transform:translateX(4px);
    }
    .notice-box{
      padding:28px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(139,92,246,.14),rgba(255,77,109,.10)),
        rgba(255,255,255,.05);
      border:1px solid var(--line);
    }
    .notice-box h3{
      font-size:24px;
      letter-spacing:-.03em;
      margin-bottom:12px;
    }
    .notice-box p{
      color:#cbd2e5;
      margin-bottom:18px;
    }
    .notice-list{
      display:grid;
      gap:10px;
    }
    .notice-list li{
      list-style:none;
      color:var(--muted);
      padding-left:18px;
      position:relative;
      font-size:14px;
    }
    .notice-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:11px;
      width:6px;
      height:6px;
      border-radius:50%;
      background:var(--primary);
    }

    .faq{
      display:grid;
      gap:14px;
      max-width:900px;
      margin:0 auto;
    }
    .faq-item{
      border-radius:var(--radius-md);
      background:rgba(255,255,255,.055);
      border:1px solid var(--line);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:20px 22px;
      border:0;
      color:#fff;
      background:transparent;
      cursor:pointer;
      font-weight:900;
      text-align:left;
    }
    .faq-question span{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:28px;
      height:28px;
      border-radius:50%;
      background:rgba(255,255,255,.08);
      color:var(--primary);
      transition:.22s ease;
    }
    .faq-answer{
      color:var(--muted);
      padding:0 22px 20px;
      display:none;
    }
    .faq-item.open{
      border-color:rgba(255,77,109,.30);
    }
    .faq-item.open .faq-answer{
      display:block;
    }
    .faq-item.open .faq-question span{
      transform:rotate(45deg);
      background:rgba(255,77,109,.14);
    }

    .cta{
      padding:42px;
      border-radius:32px;
      background:
        linear-gradient(135deg,rgba(255,77,109,.92),rgba(139,92,246,.90)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .cta::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(13,15,23,.38),rgba(13,15,23,.12));
      pointer-events:none;
    }
    .cta-content{
      position:relative;
      z-index:1;
      max-width:760px;
    }
    .cta h2{
      font-size:clamp(30px,4vw,50px);
      line-height:1.12;
      letter-spacing:-.05em;
      margin-bottom:14px;
    }
    .cta p{
      color:#f5e9ef;
      max-width:690px;
      margin-bottom:22px;
      font-size:17px;
    }
    .cta .btn-primary{
      background:#fff;
      color:#141622;
      box-shadow:0 16px 34px rgba(0,0,0,.20);
    }
    .cta .btn-primary:hover{
      box-shadow:0 22px 46px rgba(0,0,0,.24);
    }

    .site-footer{
      margin-top:74px;
      padding:56px 0 26px;
      background:#090b12;
      border-top:1px solid var(--line);
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.4fr .8fr .8fr;
      gap:42px;
      padding-bottom:34px;
    }
    .footer-brand p{
      margin-top:16px;
      max-width:470px;
      color:var(--muted);
      font-size:14px;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links li{
      list-style:none;
    }
    .footer-links a{
      color:var(--muted);
      transition:.22s ease;
      font-size:14px;
    }
    .footer-links a:hover{
      color:#fff;
      padding-left:4px;
    }
    .footer-bottom{
      border-top:1px solid var(--line);
      padding-top:22px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:var(--muted-2);
      font-size:13px;
    }

    @media (max-width:1024px){
      .header-note{display:none}
      .hero-panel,.split,.quick-area{
        grid-template-columns:1fr;
      }
      .visual-card img,.image-frame img{
        height:380px;
      }
      .feature-grid,.process{
        grid-template-columns:repeat(2,1fr);
      }
      .scene-wrap{
        grid-template-columns:repeat(2,1fr);
      }
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .header-inner{
        height:auto;
        padding:14px 0;
        align-items:flex-start;
        flex-direction:column;
      }
      .nav-links{
        width:100%;
        overflow-x:auto;
        justify-content:flex-start;
        border-radius:18px;
        padding:7px;
      }
      .nav-links a{
        flex:0 0 auto;
        min-height:38px;
        padding:0 14px;
      }
      .hero{
        padding:54px 0 38px;
      }
      .hero-panel{
        gap:28px;
      }
      .hero-lead{
        font-size:16px;
      }
      .section{
        padding:54px 0;
      }
      .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .feature-grid,.process,.scene-wrap{
        grid-template-columns:1fr;
      }
      .quick-card{
        grid-template-columns:1fr;
      }
      .quick-card img{
        height:210px;
      }
      .footer-main{
        grid-template-columns:1fr;
        gap:28px;
      }
      .footer-bottom{
        flex-direction:column;
      }
    }
    @media (max-width:520px){
      .logo{font-size:18px}
      .logo-mark{
        width:36px;
        height:36px;
      }
      h1{
        font-size:36px;
        letter-spacing:-.045em;
      }
      .hero-actions{
        align-items:stretch;
        flex-direction:column;
      }
      .btn{
        width:100%;
      }
      .visual-card{
        min-height:320px;
      }
      .visual-card img{
        height:320px;
      }
      .visual-caption{
        left:16px;
        right:16px;
        bottom:16px;
      }
      .visual-caption strong{
        font-size:20px;
      }
      .info-panel,.cta{
        padding:24px;
        border-radius:24px;
      }
      .image-frame img{
        height:320px;
      }
      .faq-question{
        padding:18px;
      }
      .faq-answer{
        padding:0 18px 18px;
      }
    }

/* roulang page: category3 */
:root{
      --bg:#0b0b12;
      --bg-soft:#12121d;
      --bg-card:#171724;
      --bg-elevated:#1e1e2d;
      --primary:#ff3d6e;
      --primary-2:#ff8a3d;
      --accent:#8b5cf6;
      --text:#f7f7fb;
      --muted:#b9b9c8;
      --weak:#818193;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(255,255,255,.2);
      --shadow:0 24px 70px rgba(0,0,0,.38);
      --shadow-card:0 18px 45px rgba(0,0,0,.26);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --container:1160px;
      --header-h:76px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{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(--text);
      background:
        radial-gradient(circle at 12% 0%, rgba(255,61,110,.22), transparent 34%),
        radial-gradient(circle at 88% 8%, rgba(139,92,246,.2), transparent 30%),
        linear-gradient(180deg,#090910 0%,#0b0b12 45%,#101019 100%);
      line-height:1.72;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(255,61,110,.32);color:#fff}

    .container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }

    .skip-link{
      position:absolute;
      left:18px;
      top:-50px;
      z-index:1000;
      padding:10px 14px;
      border-radius:999px;
      background:#fff;
      color:#101019;
      transition:top .2s var(--ease);
    }
    .skip-link:focus{top:16px;outline:3px solid rgba(255,61,110,.45)}

    .site-header{
      position:sticky;
      top:0;
      z-index:99;
      height:var(--header-h);
      background:rgba(10,10,18,.72);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .header-inner{
      height:var(--header-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:10px;
      font-weight:900;
      letter-spacing:.02em;
      color:#fff;
      white-space:nowrap;
      font-size:20px;
    }
    .logo-mark{
      width:38px;
      height:38px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      font-size:15px;
      font-weight:900;
      box-shadow:0 12px 30px rgba(255,61,110,.28);
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:6px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.04);
    }
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:8px 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg,rgba(255,61,110,.95),rgba(139,92,246,.9));
      box-shadow:0 12px 28px rgba(255,61,110,.18);
    }
    .header-actions{display:flex;align-items:center;gap:10px}
    .age-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 13px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(255,255,255,.05);
      color:#fff;
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .age-pill::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:#47e59b;
      box-shadow:0 0 0 5px rgba(71,229,155,.12);
    }
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:14px;
      background:rgba(255,255,255,.08);
      border:1px solid var(--line);
      color:#fff;
    }
    .menu-toggle span{
      display:block;
      width:18px;
      height:2px;
      margin:4px auto;
      border-radius:999px;
      background:#fff;
      transition:transform .2s var(--ease), opacity .2s var(--ease);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 18px;
      border-radius:999px;
      color:#fff;
      font-weight:900;
      letter-spacing:.01em;
      transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
    }
    .btn:focus-visible,
    .nav-links a:focus-visible,
    .footer-links a:focus-visible,
    .scenario-tab:focus-visible{
      outline:3px solid rgba(255,61,110,.45);
      outline-offset:3px;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 18px 36px rgba(255,61,110,.25);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 24px 50px rgba(255,61,110,.34)}
    .btn-ghost{
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.06);
      color:#fff;
    }
    .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3);transform:translateY(-2px)}

    .section{
      padding:86px 0;
      position:relative;
    }
    .section-head{
      max-width:780px;
      margin:0 auto 34px;
      text-align:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(255,255,255,.06);
      color:#ffd1dc;
      font-size:13px;
      font-weight:900;
      margin-bottom:16px;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 18px rgba(255,61,110,.8);
    }
    h1,h2,h3{line-height:1.16;letter-spacing:-.03em}
    h1{
      font-size:clamp(38px,6vw,72px);
      max-width:930px;
      margin:0 auto;
    }
    h2{font-size:clamp(28px,3.5vw,46px);margin-bottom:14px}
    h3{font-size:22px;margin-bottom:10px}
    .lead{
      color:var(--muted);
      font-size:18px;
      max-width:760px;
      margin:20px auto 0;
    }

    .category-hero{
      min-height:620px;
      display:flex;
      align-items:center;
      isolation:isolate;
      overflow:hidden;
      border-bottom:1px solid var(--line);
    }
    .category-hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(9,9,16,.94),rgba(9,9,16,.62) 48%,rgba(9,9,16,.9)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      z-index:-2;
      transform:scale(1.03);
    }
    .category-hero::after{
      content:"";
      position:absolute;
      inset:auto -10% -35% -10%;
      height:310px;
      background:radial-gradient(closest-side,rgba(255,61,110,.28),transparent 72%);
      z-index:-1;
    }
    .hero-panel{
      max-width:980px;
      padding:54px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:var(--radius-xl);
      background:linear-gradient(135deg,rgba(18,18,29,.82),rgba(18,18,29,.52));
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .hero-panel h1{text-align:left;margin:0}
    .hero-panel .lead{margin-left:0;margin-right:0}
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .hero-meta{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:34px;
    }
    .meta-item{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
    }
    .meta-item strong{
      display:block;
      font-size:22px;
      color:#fff;
      line-height:1.1;
    }
    .meta-item span{
      display:block;
      color:var(--muted);
      font-size:13px;
      margin-top:6px;
    }

    .grid{
      display:grid;
      gap:22px;
    }
    .grid-3{grid-template-columns:repeat(3,1fr)}
    .grid-2{grid-template-columns:repeat(2,1fr)}
    .card{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.035));
      box-shadow:var(--shadow-card);
      transition:transform .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
    }
    .card:hover{
      transform:translateY(-5px);
      border-color:rgba(255,61,110,.42);
      background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.045));
    }
    .feature-card{padding:28px}
    .icon{
      width:48px;
      height:48px;
      border-radius:16px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      margin-bottom:18px;
      background:linear-gradient(135deg,rgba(255,61,110,.22),rgba(139,92,246,.2));
      color:#fff;
      border:1px solid rgba(255,255,255,.14);
      font-weight:900;
    }
    .card p{color:var(--muted);font-size:15px}
    .tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:18px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.11);
      color:#d9d9e5;
      font-size:12px;
      font-weight:800;
    }

    .showcase{
      display:grid;
      grid-template-columns:1.02fr .98fr;
      gap:32px;
      align-items:center;
    }
    .showcase-media{
      position:relative;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.14);
      box-shadow:var(--shadow);
      min-height:420px;
      background:#111;
    }
    .showcase-media img{
      width:100%;
      height:100%;
      min-height:420px;
      object-fit:cover;
      filter:saturate(1.08) contrast(1.03);
    }
    .showcase-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 42%,rgba(0,0,0,.72));
    }
    .media-caption{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      z-index:2;
      padding:18px;
      border-radius:18px;
      background:rgba(10,10,18,.72);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(12px);
    }
    .media-caption strong{display:block;font-size:20px;margin-bottom:4px}
    .media-caption span{color:var(--muted);font-size:14px}
    .showcase-copy{
      padding:10px 0;
    }
    .check-list{
      display:grid;
      gap:14px;
      margin-top:24px;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:12px;
      padding:16px;
      border-radius:18px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      color:var(--muted);
    }
    .check-list li::before{
      content:"✓";
      flex:0 0 26px;
      width:26px;
      height:26px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(71,229,155,.14);
      color:#47e59b;
      font-weight:900;
    }

    .scenario-board{
      display:grid;
      grid-template-columns:300px 1fr;
      gap:22px;
      align-items:stretch;
    }
    .scenario-tabs{
      display:grid;
      gap:12px;
    }
    .scenario-tab{
      text-align:left;
      padding:18px 18px;
      color:#fff;
      border-radius:18px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      transition:background .22s var(--ease), transform .22s var(--ease), border-color .22s var(--ease);
    }
    .scenario-tab:hover,
    .scenario-tab.active{
      background:linear-gradient(135deg,rgba(255,61,110,.2),rgba(139,92,246,.16));
      border-color:rgba(255,61,110,.38);
      transform:translateX(3px);
    }
    .scenario-tab strong{display:block;font-size:17px}
    .scenario-tab span{display:block;margin-top:4px;color:var(--muted);font-size:13px}
    .scenario-content{
      min-height:100%;
      padding:32px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        linear-gradient(135deg,rgba(255,61,110,.13),rgba(139,92,246,.08)),
        rgba(255,255,255,.045);
      box-shadow:var(--shadow-card);
    }
    .scenario-content h3{font-size:30px}
    .scenario-content p{color:var(--muted);max-width:720px}
    .scenario-metrics{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
      margin-top:26px;
    }
    .metric{
      padding:18px;
      border-radius:18px;
      background:rgba(0,0,0,.18);
      border:1px solid rgba(255,255,255,.1);
    }
    .metric b{display:block;font-size:24px;color:#fff}
    .metric span{font-size:13px;color:var(--muted)}

    .process{
      counter-reset:step;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .step{
      counter-increment:step;
      padding:26px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      position:relative;
      overflow:hidden;
    }
    .step::before{
      content:"0" counter(step);
      display:inline-flex;
      width:42px;
      height:42px;
      align-items:center;
      justify-content:center;
      border-radius:15px;
      margin-bottom:20px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;
      font-weight:900;
      box-shadow:0 14px 30px rgba(139,92,246,.22);
    }
    .step::after{
      content:"";
      position:absolute;
      width:150px;
      height:150px;
      border-radius:50%;
      right:-70px;
      top:-70px;
      background:rgba(255,255,255,.06);
    }
    .step p{color:var(--muted);font-size:14px}

    .notice{
      padding:28px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,138,61,.32);
      background:
        linear-gradient(135deg,rgba(255,138,61,.14),rgba(255,61,110,.08)),
        rgba(255,255,255,.04);
      display:grid;
      grid-template-columns:auto 1fr;
      gap:18px;
      align-items:start;
    }
    .notice-badge{
      width:54px;
      height:54px;
      border-radius:18px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(255,138,61,.2);
      border:1px solid rgba(255,138,61,.35);
      color:#ffd1a8;
      font-weight:900;
    }
    .notice h2{font-size:28px;margin-bottom:8px}
    .notice p{color:var(--muted)}

    .faq-list{
      max-width:900px;
      margin:0 auto;
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.045);
      overflow:hidden;
    }
    .faq-item summary{
      cursor:pointer;
      list-style:none;
      padding:20px 24px;
      font-weight:900;
      color:#fff;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      flex:0 0 30px;
      width:30px;
      height:30px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(255,255,255,.08);
      color:#fff;
      transition:transform .2s var(--ease), background .2s var(--ease);
    }
    .faq-item[open] summary::after{
      content:"−";
      background:rgba(255,61,110,.2);
      transform:rotate(180deg);
    }
    .faq-item p{
      padding:0 24px 22px;
      color:var(--muted);
      border-top:1px solid rgba(255,255,255,.08);
      margin-top:-1px;
      padding-top:18px;
    }

    .cta{
      padding:54px;
      border-radius:var(--radius-xl);
      border:1px solid rgba(255,255,255,.14);
      background:
        linear-gradient(135deg,rgba(255,61,110,.24),rgba(139,92,246,.2)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta::before{
      content:"";
      position:absolute;
      inset:0;
      background:rgba(9,9,16,.58);
    }
    .cta-content{
      position:relative;
      z-index:1;
      max-width:780px;
    }
    .cta h2{font-size:clamp(30px,4vw,52px)}
    .cta p{color:#e6e6ee;margin-top:12px;max-width:690px}
    .cta .hero-actions{margin-top:26px}

    .site-footer{
      padding:58px 0 26px;
      background:#07070c;
      border-top:1px solid var(--line);
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.5fr .75fr .75fr;
      gap:36px;
      align-items:start;
    }
    .footer-brand p{
      margin-top:14px;
      color:var(--muted);
      max-width:420px;
      font-size:14px;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
      list-style:none;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      transition:color .2s var(--ease), transform .2s var(--ease);
      display:inline-flex;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      margin-top:36px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.1);
      display:flex;
      justify-content:space-between;
      gap:14px;
      color:var(--weak);
      font-size:13px;
    }

    @media (max-width:1024px){
      :root{--header-h:72px}
      .header-actions .age-pill{display:none}
      .hero-panel{padding:42px}
      .showcase{grid-template-columns:1fr}
      .scenario-board{grid-template-columns:1fr}
      .scenario-tabs{grid-template-columns:repeat(3,1fr)}
      .process{grid-template-columns:repeat(2,1fr)}
      .grid-3{grid-template-columns:repeat(2,1fr)}
      .footer-main{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }

    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center;flex-direction:column}
      .site-header.open .menu-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
      .site-header.open .menu-toggle span:nth-child(2){opacity:0}
      .site-header.open .menu-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
      .nav-links{
        position:absolute;
        left:14px;
        right:14px;
        top:calc(var(--header-h) + 10px);
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:10px;
        background:rgba(12,12,20,.96);
        box-shadow:var(--shadow);
      }
      .site-header.open .nav-links{display:flex}
      .nav-links a{justify-content:center;border-radius:16px}
      .category-hero{min-height:auto;padding:58px 0}
      .hero-panel{padding:30px;border-radius:24px}
      .hero-meta{grid-template-columns:1fr}
      .section{padding:64px 0}
      .grid-3,.grid-2{grid-template-columns:1fr}
      .scenario-tabs{grid-template-columns:1fr}
      .scenario-metrics{grid-template-columns:1fr}
      .notice{grid-template-columns:1fr}
      .cta{padding:34px 26px}
      .footer-main{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }

    @media (max-width:520px){
      .logo{font-size:17px}
      .logo-mark{width:34px;height:34px;border-radius:12px;font-size:13px}
      .hero-panel{padding:24px}
      .hero-actions .btn{width:100%}
      .process{grid-template-columns:1fr}
      .showcase-media,.showcase-media img{min-height:310px}
      .feature-card,.scenario-content,.step{padding:22px}
      .faq-item summary{padding:18px}
      .faq-item p{padding-left:18px;padding-right:18px}
    }