/* roulang page: index */
:root{
  --bg-page:#070a09;
  --bg-section:#0a0e0d;
  --bg-card:#0e1311;
  --bg-elevated:#141a17;
  --text-primary:#f2f5f2;
  --text-secondary:#9aa39b;
  --text-tertiary:#67736b;
  --text-invert:#0a0e0d;
  --brand:#ceff54;
  --brand-hover:#e1ff82;
  --brand-muted:rgba(206,255,84,.12);
  --border:rgba(206,255,84,.16);
  --border-strong:rgba(206,255,84,.34);
  --border-light:rgba(242,245,242,.08);
  --danger:#ff5c38;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-card:0 10px 28px rgba(0,0,0,.24);
  --shadow-hover:0 16px 36px rgba(0,0,0,.3), 0 0 0 1px rgba(206,255,84,.12);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:20px;
  --space-6:24px;
  --space-7:32px;
  --space-8:40px;
  --space-9:56px;
  --space-10:72px;
  --space-11:88px;
  --space-12:112px;
  --container-max:1200px;
  --header-h:72px;
  --section-y:clamp(56px,8vw,104px);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--text-primary);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:4px;border-radius:4px}
.container{max-width:var(--container-max);margin-inline:auto;padding-inline:clamp(18px,4vw,32px)}
.section{padding-block:var(--section-y)}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:100;
  padding:8px 16px;border-radius:var(--radius-sm);
  background:var(--brand);color:var(--text-invert);font-weight:700;
  transition:top .25s ease;
}
.skip-link:focus{top:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:16px;height:1px;background:var(--brand);display:inline-block}
.heading-h2{
  font-size:clamp(26px,4vw,40px);
  font-weight:800;
  line-height:1.24;
  letter-spacing:-.01em;
  margin-top:14px;
}
.heading-md{
  font-size:clamp(16px,2vw,21px);
  font-weight:700;
  line-height:1.5;
}
.text-secondary{color:var(--text-secondary)}
.section-intro{max-width:760px;margin-top:16px;color:var(--text-secondary);font-size:15px}

/* header */
.site-header{
  position:sticky;top:0;z-index:80;
  height:var(--header-h);
  background:rgba(7,10,9,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--border-light);
  background:rgba(7,10,9,.96);
}
.header-inner{
  max-width:var(--container-max);
  margin-inline:auto;
  height:100%;
  padding-inline:clamp(18px,4vw,32px);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:21px;line-height:1;font-weight:900;letter-spacing:-.02em;
  white-space:nowrap;
}
.brand span{color:var(--brand);font-weight:800}
.brand i{
  font-style:normal;display:inline-block;width:7px;height:7px;
  margin-left:4px;border-radius:2px;background:var(--brand);vertical-align:middle;
  transform:rotate(18deg);
}
.site-nav ul{display:flex;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;
  font-size:15px;font-weight:500;color:var(--text-secondary);
  padding-block:10px;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover,.nav-link:focus{color:var(--text-primary)}
.nav-link:hover::after,.nav-link:focus::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{position:relative}
.lang-trigger{
  display:inline-flex;align-items:center;gap:6px;
  min-height:36px;padding:0 12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-light);
  border-radius:var(--radius-pill);
  color:var(--text-secondary);
  font-size:13px;font-weight:500;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.lang-trigger:hover,.lang-trigger[aria-expanded="true"]{
  color:var(--text-primary);border-color:var(--border-strong);background:rgba(255,255,255,.07);
}
.lang-trigger svg{opacity:.75}
.lang-menu{
  display:none;position:absolute;top:calc(100% + 10px);right:0;
  min-width:150px;padding:8px;
  background:var(--bg-elevated);
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
}
.lang-switch.is-open .lang-menu{display:block}
.lang-menu span,.lang-menu a{
  display:flex;align-items:center;gap:8px;
  width:100%;padding:9px 10px;margin:2px 0;
  border-radius:var(--radius-sm);
  font-size:13px;color:var(--text-primary);
}
.lang-menu a:hover{background:rgba(255,255,255,.06)}
.lang-dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.nav-cta{min-height:38px;padding:0 18px;font-size:14px}
.nav-cta:hover{color:var(--text-invert)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  width:42px;height:42px;border:1px solid var(--border-light);border-radius:var(--radius-sm);
  background:transparent;padding:8px;
}
.nav-toggle .bar{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-primary);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  line-height:1;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn svg{transition:transform .2s ease}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:var(--brand);color:var(--text-invert)}
.btn-primary:hover{
  background:var(--brand-hover);color:var(--text-invert);
  transform:translateY(-2px);
  box-shadow:0 10px 28px rgba(206,255,84,.18);
}
.btn-ghost{
  background:rgba(206,255,84,.02);
  color:var(--text-primary);
  border-color:rgba(206,255,84,.28);
}
.btn-ghost:hover{
  background:var(--brand-muted);
  border-color:var(--brand);
  transform:translateY(-2px);
}
.btn-light{
  background:rgba(255,255,255,.06);
  color:var(--text-primary);
  border-color:rgba(255,255,255,.1);
}
.btn-light:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}
.btn-lg{min-height:56px;padding:0 34px;font-size:17px}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px}
.btn .text-arrow{margin-left:2px}
.text-link{
  display:inline-flex;align-items:center;gap:5px;
  color:var(--text-primary);font-weight:600;font-size:14px;
  transition:color .2s ease,gap .2s ease;
}
.text-link:hover,.text-link:focus{color:var(--brand)}
.text-link:hover svg,.text-link:focus svg{transform:translateX(4px)}
.text-link svg{transition:transform .2s ease}

/* hero */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;align-items:center;
  padding:120px 0 52px;
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-color:#060807;
  background-image:linear-gradient(180deg,rgba(7,10,9,.82),rgba(7,10,9,.58)),url('/assets/images/backpic/back-1.jpg');
  background-size:cover;
  background-position:center 45%;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(206,255,84,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(206,255,84,.05) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.18;
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:clamp(36px,6vw,78px);
  align-items:center;
}
.hero-content{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 13px;border-radius:var(--radius-pill);
  background:var(--brand-muted);border:1px solid rgba(206,255,84,.18);
  color:var(--brand);font-size:13px;font-weight:600;
}
.hero-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.hero h1{
  margin-top:22px;
  font-size:clamp(34px,6vw,62px);
  font-weight:900;
  line-height:1.18;
  letter-spacing:-.035em;
  text-wrap:pretty;
}
.hero h1 .h1-accent{color:var(--brand)}
.hero-desc{
  margin-top:22px;max-width:560px;
  font-size:16px;line-height:1.9;
  color:var(--text-secondary);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-tags{
  display:flex;flex-wrap:wrap;align-items:center;
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--border);
  gap:14px 34px;
  color:var(--text-secondary);font-size:13px;
}
.hero-tags li{display:inline-flex;align-items:center;gap:8px}
.hero-tags li::before{content:"";width:14px;height:1px;background:var(--brand);opacity:.8}
.hero-visual{position:relative;z-index:2}
.hero-frame{
  border:1px solid rgba(242,245,242,.1);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--bg-card);
  box-shadow:0 24px 60px rgba(0,0,0,.38);
}
.hero-frame::after{
  content:"";display:block;position:absolute;inset:auto 0 0 0;height:30%;
  background:linear-gradient(transparent,rgba(7,10,9,.5));
  pointer-events:none;
}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-visual-note{
  margin-top:14px;display:flex;justify-content:space-between;
  font-size:12px;color:var(--text-tertiary);letter-spacing:.04em;
}
.hero-visual-note span:last-child{color:var(--brand)}

/* honey rows / sell */
.sell-block{background:var(--bg-section);border-top:1px solid var(--border-light);border-bottom:1px solid var(--border-light)}
.sell-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:14px}
.sell-head .section-intro{max-width:520px;margin-top:10px}
.sell-list{display:flex;flex-direction:column}
.sell-row{
  display:grid;
  grid-template-columns:110px 1fr auto;
  gap:24px;
  align-items:center;
  padding:38px 0;
  border-bottom:1px solid var(--border-light);
}
.sell-row:last-child{border-bottom:0}
.sell-row.is-shift{margin-left:clamp(0px,8%,90px)}
.sell-num{
  font-family:var(--font-mono);
  font-size:52px;
  font-weight:400;
  color:var(--brand);
  line-height:1;
  opacity:.9;
}
.sell-copy{min-width:0}
.sell-copy h3{font-size:20px;font-weight:800;letter-spacing:-.01em}
.sell-copy p{margin-top:8px;color:var(--text-secondary);line-height:1.8;max-width:760px}
.sell-meta{
  justify-self:end;
  display:inline-flex;align-items:center;gap:5px;
  padding:6px 12px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--border-light);
  border-radius:var(--radius-pill);
  color:var(--brand);font-size:13px;
}
@media(max-width:860px){
  .sell-row{grid-template-columns:64px 1fr;row-gap:6px}
  .sell-meta{grid-column:2;justify-self:start}
  .sell-row.is-shift{margin-left:0}
  .sell-num{font-size:42px}
}

/* scenes */
.scene-wrapper{
  display:grid;
  grid-template-columns:minmax(0,.4fr) minmax(0,.6fr);
  gap:clamp(28px,5vw,70px);
  align-items:start;
}
.scene-side{position:sticky;top:calc(var(--header-h) + 24px)}
.scene-tabs{display:flex;flex-direction:column;gap:10px;margin-top:26px}
.scene-tab{
  width:100%;text-align:left;
  padding:15px 18px;
  border-radius:var(--radius-md);
  background:var(--bg-card);
  border:1px solid var(--border-light);
  color:var(--text-secondary);
  transition:border-color .2s ease,background .2s ease,color .2s ease,transform .2s ease;
}
.scene-tab span{display:block;font-size:12px;font-family:var(--font-mono);color:var(--text-tertiary)}
.scene-tab strong{display:block;font-size:16px;font-weight:700;margin-top:3px}
.scene-tab:hover,.scene-tab:focus{border-color:rgba(206,255,84,.3);color:var(--text-primary)}
.scene-tab.active{
  background:var(--brand-muted);
  border-color:var(--brand);
  color:var(--brand);
}
.scene-tab.active span{color:var(--brand)}
.scene-stage{min-height:0}
.scene-block{display:none}
.scene-block.active{display:grid;grid-template-columns:minmax(0,1fr);gap:18px}
.scene-visual{
  position:relative;
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--bg-card);
}
.scene-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-copy{
  padding:18px 4px 6px;
  border-bottom:1px solid var(--border-light);
}
.scene-copy h3{font-size:24px;font-weight:800}
.scene-copy p{margin-top:8px;color:var(--text-secondary);line-height:1.85;font-size:15px}
.scene-copy ul{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.scene-copy li{
  display:flex;gap:10px;align-items:flex-start;
  color:var(--text-secondary);font-size:14px;
}
.scene-copy li::before{
  content:"";flex:0 0 auto;width:5px;height:5px;margin-top:10px;border-radius:50%;background:var(--brand);
}
.scene-copy a{margin-top:18px}
@media(max-width:900px){
  .scene-wrapper{grid-template-columns:1fr}
  .scene-side{position:static}
  .scene-tabs{flex-direction:row;flex-wrap:wrap}
  .scene-tab{flex:1 1 200px}
  .scene-block.active{grid-template-columns:1fr}
}

/* social */
.social-block{background:var(--bg-section);border-block:1px solid var(--border-light)}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--bg-card);
}
.stat-item{padding:28px 24px;border-left:1px solid var(--border-light)}
.stat-item:first-child{border-left:0}
.stat-num{
  font-family:var(--font-mono);font-size:36px;font-weight:300;
  color:var(--brand);line-height:1.2;
}
.stat-label{margin-top:8px;font-size:14px;color:var(--text-secondary)}
.testi-grid{
  margin-top:42px;
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.testi-card{
  position:relative;
  padding:28px 24px 22px;
  background:var(--bg-card);
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.testi-card:hover{border-color:var(--border-strong);transform:translateY(-4px);background:var(--bg-elevated)}
.testi-card::before{
  content:"“";position:absolute;top:8px;left:22px;
  font-size:62px;line-height:1;color:var(--brand);
  font-family:Georgia,serif;opacity:.7;
}
.testi-card blockquote{margin-top:22px;color:var(--text-secondary);font-size:15px;line-height:1.85}
.testi-card figcaption{margin-top:16px;font-size:13px;color:var(--text-tertiary)}
@media(max-width:992px){.stat-grid{grid-template-columns:repeat(2,1fr)}.stat-item:nth-child(3){border-left:0}.stat-item:nth-child(n+3){border-top:1px solid var(--border-light)}.testi-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.testi-grid{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}.stat-item{padding:20px 16px}.stat-num{font-size:29px}}

/* faq */
.faq-grid{display:grid;grid-template-columns:minmax(0,.38fr) minmax(0,.62fr);gap:clamp(30px,6vw,76px);align-items:start}
.faq-intro{position:sticky;top:calc(var(--header-h) + 30px)}
.faq-intro p{margin-top:14px}
.faq-intro .faq-contact{margin-top:22px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(206,255,84,.26)}
.faq-item.is-open{border-color:var(--border-strong);background:var(--bg-elevated)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text-primary);
  text-align:left;padding:15px 18px;
  font-weight:600;font-size:15px;min-height:48px;
}
.faq-q .faq-icon{
  position:relative;flex:0 0 24px;width:24px;height:24px;border-radius:6px;
  background:var(--brand-muted);border:1px solid rgba(206,255,84,.24);
  transition:transform .25s ease,background .25s ease;
}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .2s ease;
}
.faq-q .faq-icon::before{left:40%;top:6px;bottom:6px;width:2px}
.faq-q .faq-icon::after{top:40%;left:6px;right:6px;height:2px}
.faq-item.is-open .faq-q .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 18px 18px;color:var(--text-secondary);font-size:15px;line-height:1.8;border-top:1px solid var(--border-light);padding-top:14px}
@media(max-width:900px){.faq-grid{grid-template-columns:1fr}.faq-intro{position:static}}

/* cta banner */
.cta-banner{position:relative;overflow:hidden;padding-block:96px}
.cta-bg{
  position:absolute;inset:0;z-index:-2;
  background-color:#060807;
  background-image:linear-gradient(180deg,rgba(7,10,9,.78),rgba(7,10,9,.62)),url('/assets/images/backpic/back-6.jpg');
  background-size:cover;background-position:center;
}
.cta-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 80% 20%,rgba(206,255,84,.12),transparent 34%);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:780px}
.cta-inner h2{
  font-size:clamp(26px,4.4vw,42px);
  font-weight:900;
  line-height:1.25;
  letter-spacing:-.02em;
  margin-top:14px;
}
.cta-inner h2 span{color:var(--brand)}
.cta-inner p{margin:18px auto 0;color:var(--text-secondary);max-width:640px}
.cta-inner .btn{margin-top:30px}

/* footer */
.site-footer{background:#050706;border-top:1px solid var(--border-light)}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr .8fr;
  gap:40px 30px;
  padding-block:64px 42px;
}
.footer-brand p{margin-top:14px;color:var(--text-secondary);font-size:14px;max-width:340px}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.footer-links h4{font-size:13px;letter-spacing:.08em;color:var(--text-tertiary);margin-bottom:14px}
.footer-links a{
  display:block;padding:5px 0;
  font-size:14px;color:var(--text-secondary);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:var(--brand);padding-left:4px}
.footer-bottom{
  border-top:1px solid var(--border-light);
  padding:20px 0 90px;
  font-size:13px;color:var(--text-tertiary);
}
.footer-bottom .container{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-links{grid-template-columns:1fr}}

/* fixed conversion bar */
.conversion-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  transform:translateY(120%);
  opacity:0;
  transition:transform .4s cubic-bezier(.2,.8,.2,1),opacity .3s ease;
  pointer-events:none;
}
.conversion-bar.show{transform:translateY(0);opacity:1;pointer-events:auto}
.conversion-bar-inner{
  margin-left:auto;margin-right:auto;
  max-width:1000px;
  margin-bottom:14px;margin-inline:16px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:10px 12px 10px 20px;
  background:rgba(16,22,19,.96);
  border:1px solid var(--border-strong);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-hover);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.conversion-bar p{color:var(--text-primary);font-size:14px}
.conversion-bar .btn{flex:0 0 auto}
.conversion-close{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  background:transparent;border:1px solid var(--border-light);
  color:var(--text-secondary);font-size:15px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.conversion-close:hover{border-color:var(--danger);color:var(--danger);transform:rotate(90deg)}
@media(max-width:560px){
  .conversion-bar-inner{flex-wrap:wrap;padding:12px 14px;border-radius:18px}
  .conversion-bar p{flex:1 1 auto}
  .conversion-bar .btn{width:100%;order:3}
  .conversion-close{order:2}
}

/* nav mobile */
@media(max-width:992px){
  .site-nav{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    background:rgba(7,10,9,.985);
    padding:30px clamp(20px,5vw,40px);
    transform:translateY(-12px);
    opacity:0;visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
    overflow-y:auto;
  }
  .site-nav.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .site-nav ul{flex-direction:column;align-items:flex-start;gap:6px;width:100%}
  .nav-link{display:block;width:100%;padding:14px 0;font-size:19px}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .header-actions{gap:8px}
}

/* roulang page: category1 */
:root{
  --bg-page:#070a09;
  --bg-section:#0a0e0d;
  --bg-card:#0e1311;
  --bg-elevated:#141a17;
  --text-primary:#f2f5f2;
  --text-secondary:#9aa39b;
  --text-tertiary:#67736b;
  --text-invert:#0a0e0d;
  --brand:#ceff54;
  --brand-hover:#e1ff82;
  --brand-muted:rgba(206,255,84,.12);
  --border:rgba(206,255,84,.16);
  --border-strong:rgba(206,255,84,.34);
  --border-light:rgba(242,245,242,.08);
  --danger:#ff5c38;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:18px;
  --radius-pill:999px;
  --shadow-card:0 10px 28px rgba(0,0,0,.24);
  --shadow-hover:0 16px 36px rgba(0,0,0,.3), 0 0 0 1px rgba(206,255,84,.12);
  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:20px;
  --space-6:24px;
  --space-7:32px;
  --space-8:40px;
  --space-9:56px;
  --space-10:72px;
  --space-11:88px;
  --space-12:112px;
  --container-max:1200px;
  --header-h:72px;
  --section-y:clamp(52px,7vw,100px);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
}
html{scroll-behavior:smooth}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--text-primary);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body,html{overflow-x:hidden}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{display:block;max-width:100%;height:auto}
button,input{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
  border-radius:4px;
}
::selection{background:var(--brand);color:var(--text-invert)}
.container{max-width:var(--container-max);margin-inline:auto;padding-inline:clamp(18px,4vw,32px)}
.section{padding-block:var(--section-y)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:16px;height:1px;background:var(--brand);display:inline-block}
.heading-h2{
  font-size:clamp(24px,3.6vw,38px);
  font-weight:800;
  line-height:1.24;
  letter-spacing:-.01em;
  margin-top:12px;
}
.text-secondary{color:var(--text-secondary)}
.section-intro{max-width:760px;margin-top:14px;color:var(--text-secondary);font-size:15px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--brand);
  line-height:1.2;
  transition:color .2s ease;
}
.text-link svg{transition:transform .2s ease}
.text-link:hover{color:var(--brand-hover)}
.text-link:hover svg{transform:translateX(4px)}

/* header */
.site-header{
  position:sticky;top:0;z-index:80;
  height:var(--header-h);
  background:rgba(7,10,9,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--border-light);
  background:rgba(7,10,9,.96);
}
.header-inner{
  max-width:var(--container-max);
  margin-inline:auto;
  height:100%;
  padding-inline:clamp(18px,4vw,32px);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{
  display:inline-flex;align-items:baseline;gap:2px;
  font-size:21px;line-height:1;font-weight:900;letter-spacing:-.02em;
  white-space:nowrap;
}
.brand span{color:var(--brand);font-weight:800}
.brand i{
  font-style:normal;display:inline-block;width:7px;height:7px;
  margin-left:4px;border-radius:2px;background:var(--brand);vertical-align:middle;
  transform:rotate(18deg);
}
.site-nav ul{display:flex;align-items:center;gap:32px}
.nav-link{
  position:relative;display:inline-block;
  font-size:15px;font-weight:500;color:var(--text-secondary);
  padding-block:10px;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover,.nav-link:focus{color:var(--text-primary)}
.nav-link:hover::after,.nav-link:focus::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{position:relative}
.lang-trigger{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-light);
  border-radius:var(--radius-pill);
  color:var(--text-secondary);
  cursor:pointer;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.lang-trigger svg{flex:none}
.lang-trigger:hover,.lang-trigger[aria-expanded="true"]{
  color:var(--text-primary);
  border-color:var(--border-strong);
  background:rgba(255,255,255,.07);
}
.lang-menu{
  display:none;position:absolute;top:calc(100% + 10px);right:0;
  min-width:150px;padding:8px;
  background:var(--bg-elevated);
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);
}
.lang-switch.is-open .lang-menu{display:block}
.lang-menu span,.lang-menu a{
  display:flex;align-items:center;gap:8px;
  width:100%;padding:9px 10px;margin:2px 0;
  border-radius:var(--radius-sm);
  font-size:13px;color:var(--text-primary);
}
.lang-menu span{cursor:default}
.lang-menu a:hover{background:rgba(255,255,255,.06)}
.lang-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  line-height:1;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn svg{transition:transform .2s ease}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{
  background:var(--brand);
  color:var(--text-invert);
  box-shadow:0 4px 0 rgba(206,255,84,.12);
}
.btn-primary:hover{
  background:var(--brand-hover);
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(206,255,84,.24);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:0 4px 0 rgba(206,255,84,.1);
}
.btn-ghost{
  border-color:var(--border-strong);
  color:var(--brand);
  background:transparent;
}
.btn-ghost:hover{
  background:var(--brand-muted);
  border-color:var(--brand);
  transform:translateY(-2px);
}
.btn-ghost:active{
  transform:translateY(1px);
}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.nav-cta{min-height:38px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  width:42px;height:42px;border:1px solid var(--border-light);border-radius:var(--radius-sm);
  background:transparent;padding:8px;
}
.nav-toggle .bar{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-primary);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* category hero */
.cat-hero{
  position:relative;
  padding:clamp(30px,4.6vw,58px) 0 34px;
  overflow:hidden;
  border-bottom:1px solid var(--border-light);
  background:
    linear-gradient(130deg,rgba(7,10,9,.96) 0%,rgba(7,10,9,.78) 45%,rgba(14,19,17,.86) 100%),
    url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
}
.cat-hero::after{
  content:attr(data-index);
  position:absolute;
  right:-10px;bottom:0;
  font-family:var(--font-mono);
  font-size:clamp(80px,10vw,150px);
  font-weight:900;
  line-height:.8;
  color:rgba(206,255,84,.04);
  letter-spacing:-.05em;
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-tertiary);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .bread-current{color:var(--brand)}
.cat-hero__grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(280px,.85fr);
  gap:clamp(28px,5vw,72px);
  align-items:center;
}
.cat-hero__label{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--brand);
  letter-spacing:.14em;
  text-transform:uppercase;
  margin-bottom:14px;
}
.cat-hero__text h1{
  font-size:clamp(27px,4.4vw,48px);
  font-weight:900;
  line-height:1.2;
  letter-spacing:-.02em;
  text-wrap:balance;
}
.cat-hero__desc{
  margin-top:18px;
  max-width:640px;
  color:var(--text-secondary);
  font-size:15px;
  line-height:1.85;
}
.cat-hero__tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.cat-hero__tags span,.tag-item{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  font-weight:600;
  color:var(--text-secondary);
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-light);
  border-radius:999px;
  padding:5px 12px;
}
.cat-hero__tags span{color:var(--brand);background:var(--brand-muted);border-color:var(--border)}
.cat-hero__cta{
  margin-top:24px;
  display:flex;align-items:center;gap:16px;
  font-size:14px;
}
.cat-hero__panel{
  position:relative;
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--bg-card);
  box-shadow:var(--shadow-card);
}
.cat-hero__panel img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  filter:saturate(.78) contrast(1.02) brightness(.9);
}
.cat-hero__panel::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,9,.12) 0%,rgba(7,10,9,.68) 100%);
}
.hero-panel-stats{
  position:absolute;
  left:14px;right:14px;bottom:14px;
  z-index:2;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:8px;
}
.hero-stat{
  background:rgba(7,10,9,.72);
  border:1px solid rgba(206,255,84,.22);
  border-radius:var(--radius-sm);
  padding:9px 6px;
  text-align:center;
  backdrop-filter:blur(6px);
}
.hero-stat b{
  display:block;
  font-family:var(--font-mono);
  font-size:16px;
  color:var(--brand);
  font-weight:800;
  line-height:1.3;
}
.hero-stat small{
  font-size:10px;
  color:var(--text-secondary);
  line-height:1.2;
  display:block;
}

/* filter strip */
.filter-strip{
  border-bottom:1px solid var(--border-light);
  background:var(--bg-section);
  position:sticky;
  top:var(--header-h);
  z-index:40;
}
.filter-strip__inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:60px;
  overflow-x:auto;
  scrollbar-width:none;
}
.filter-strip__inner::-webkit-scrollbar{display:none}
.filter-label{
  flex:none;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--text-tertiary);
  text-transform:uppercase;
  padding-left:4px;
}
.filter-pills{
  display:flex;
  align-items:center;
  gap:8px;
  width:max-content;
  padding-block:10px;
}
.filter-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:34px;
  padding:0 14px;
  border:1px solid var(--border-light);
  border-radius:999px;
  background:rgba(255,255,255,.03);
  color:var(--text-secondary);
  font-size:13px;
  font-weight:600;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.filter-pill:hover{
  border-color:var(--border);
  color:var(--brand);
  background:var(--brand-muted);
}
.filter-pill.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:var(--text-invert);
}

/* catalog layout */
.catalog-section{
  background:
    linear-gradient(rgba(206,255,84,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(206,255,84,.025) 1px,transparent 1px);
  background-size:48px 48px;
}
.content-split{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:clamp(28px,4.6vw,56px);
  align-items:start;
}
.content-main{
  display:flex;
  flex-direction:column;
  min-width:0;
}
.result-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-bottom:22px;
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  background:rgba(14,19,17,.6);
  padding:12px 16px;
}
.result-name{
  font-size:14px;
}
.result-name strong{color:var(--brand);font-family:var(--font-mono);font-weight:700}
.result-note{
  font-size:12px;
  color:var(--text-tertiary);
  font-family:var(--font-mono);
}
.entry-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.entry-item{
  display:grid;
  grid-template-columns:212px minmax(0,1fr);
  gap:0;
  background:var(--bg-card);
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.entry-item:hover{
  border-color:var(--border);
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
  background:var(--bg-elevated);
}
.entry-thumb{
  position:relative;
  display:block;
  min-height:150px;
  height:100%;
  overflow:hidden;
  background:var(--bg-section);
}
.entry-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.entry-item:hover .entry-thumb img{transform:scale(1.03)}
.entry-thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,9,0) 30%,rgba(7,10,9,.42) 100%);
}
.thumb-badge{
  position:absolute;
  top:10px;left:10px;
  z-index:2;
  background:rgba(7,10,9,.82);
  border:1px solid rgba(206,255,84,.3);
  color:var(--brand);
  font-size:11px;
  font-weight:700;
  padding:3px 9px;
  border-radius:999px;
  backdrop-filter:blur(5px);
  letter-spacing:.02em;
}
.entry-content{
  padding:18px 22px 16px;
  min-width:0;
}
.entry-tags{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-bottom:10px;
}
.entry-tags a{
  display:inline-flex;
  font-size:11px;
  color:var(--text-secondary);
  border:1px solid var(--border-light);
  border-radius:6px;
  padding:2px 8px;
  transition:color .2s ease,border-color .2s ease;
}
.entry-tags a:hover{
  color:var(--brand);
  border-color:var(--border-strong);
}
.entry-title{
  font-size:19px;
  font-weight:800;
  line-height:1.4;
  letter-spacing:-.01em;
}
.entry-title a{
  transition:color .2s ease;
}
.entry-title a:hover{
  color:var(--brand);
}
.entry-desc{
  margin-top:8px;
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.8;
}
.entry-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:14px;
  padding-top:12px;
  border-top:1px solid rgba(242,245,242,.07);
}
.entry-meta{
  display:flex;
  flex-wrap:wrap;
  gap:6px 14px;
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--text-tertiary);
}
.entry-meta strong{color:var(--text-secondary);font-weight:600}
.entry-link{
  flex:none;
  font-size:13px;
}

/* pagination */
.pagination{
  display:flex;
  align-items:center;
  justify-content:flex-start;
  gap:6px;
  margin-top:28px;
  padding-top:22px;
  border-top:1px solid var(--border-light);
}
.pagination-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
  height:40px;
  padding:0 12px;
  border-radius:var(--radius-md);
  border:1px solid var(--border-light);
  color:var(--text-secondary);
  font-size:14px;
  font-weight:600;
  transition:color .2s ease,background .2s ease,border-color .2s ease,opacity .2s ease;
}
.pagination-btn:hover:not(.is-disabled):not(.is-current){
  border-color:var(--border-strong);
  color:var(--brand);
  background:var(--brand-muted);
}
.pagination-btn.is-current{
  background:var(--brand);
  color:var(--text-invert);
  border-color:var(--brand);
  font-family:var(--font-mono);
  cursor:default;
}
.pagination-btn.is-disabled{
  opacity:.35;
  pointer-events:none;
}

/* sidebar */
.sidebar{
  display:flex;
  flex-direction:column;
  gap:20px;
  position:sticky;
  top:calc(var(--header-h) + 62px);
  max-height:calc(100vh - var(--header-h) - 70px);
  overflow-y:auto;
  scrollbar-width:thin;
  scrollbar-color:rgba(206,255,84,.24) transparent;
}
.side-panel{
  background:rgba(14,19,17,.78);
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  padding:20px;
}
.side-title{
  font-size:14px;
  font-weight:800;
  color:var(--text-primary);
  letter-spacing:.02em;
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.side-title::before{
  content:"";
  width:4px;
  height:14px;
  background:var(--brand);
  border-radius:2px;
  display:inline-block;
}
.side-links{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.side-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:9px 8px;
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.5;
  border-radius:var(--radius-sm);
  transition:color .2s ease,background .2s ease,padding-left .2s ease;
}
.side-link svg{flex:none;opacity:.55;transition:transform .2s ease,opacity .2s ease}
.side-link:hover{
  color:var(--brand);
  background:rgba(206,255,84,.06);
  padding-left:12px;
}
.side-link:hover svg{
  opacity:1;
  transform:translateX(3px);
}
.flash-list li+li{border-top:1px solid rgba(242,245,242,.07)}
.flash-list a{
  display:block;
  padding:11px 6px;
  color:var(--text-secondary);
  font-size:13px;
  line-height:1.6;
  transition:color .2s ease,padding-left .2s ease;
}
.flash-list a:hover{
  color:var(--brand);
  padding-left:10px;
}
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.cloud-tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  font-weight:600;
  color:var(--text-secondary);
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-light);
  border-radius:999px;
  padding:5px 12px;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.cloud-tag:hover{
  color:var(--text-invert);
  background:var(--brand);
  border-color:var(--brand);
}

/* scenario */
.scenario-section{
  background:var(--bg-section);
  border-top:1px solid var(--border-light);
}
.scenario-grid{
  display:grid;
  grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);
  gap:clamp(32px,6vw,80px);
  align-items:start;
}
.scenario-copy .section-intro{
  font-size:16px;
}
.scenario-copy .text-link{
  margin-top:18px;
}
.scenario-rows{
  display:flex;
  flex-direction:column;
}
.scenario-row{
  display:grid;
  grid-template-columns:52px minmax(0,1fr) auto;
  gap:18px;
  align-items:center;
  padding:18px 4px;
  border-bottom:1px solid var(--border-light);
}
.scenario-row:first-child{padding-top:0}
.scenario-row:hover{
  background:linear-gradient(90deg,rgba(206,255,84,.05),transparent 70%);
}
.scenario-num{
  font-family:var(--font-mono);
  font-size:26px;
  font-weight:900;
  color:var(--brand);
  line-height:1;
  opacity:.85;
}
.scenario-head{
  font-size:16px;
  font-weight:700;
  line-height:1.5;
}
.scenario-desc{
  grid-column:2 / 3;
  margin-top:-10px;
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.7;
}
.scenario-link{
  grid-column:3;
  grid-row:1 / span 2;
  color:var(--text-tertiary);
  font-size:12px;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  gap:5px;
  line-height:1.2;
  text-align:center;
  white-space:nowrap;
  transition:color .2s ease;
}
.scenario-row:hover .scenario-link,
.scenario-link:hover{color:var(--brand)}

/* faq */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);
  gap:clamp(32px,6vw,90px);
}
.faq-aside .text-link{margin-top:18px}
.faq-acc{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color .3s ease,background .3s ease;
}
.faq-item:hover{border-color:rgba(242,245,242,.14)}
.faq-item.is-open{
  border-color:var(--border);
  background:var(--bg-elevated);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  min-height:52px;
  padding:14px 18px;
  background:transparent;
  border:0;
  text-align:left;
  color:var(--text-primary);
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  line-height:1.5;
}
.faq-q:hover .faq-qicon{
  border-color:var(--brand);
  color:var(--brand);
}
.faq-qicon{
  flex:none;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--border-light);
  color:var(--text-tertiary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:400;
  transition:transform .3s ease,border-color .3s ease,color .3s ease;
}
.faq-item.is-open .faq-qicon{
  transform:rotate(45deg);
  border-color:var(--brand);
  color:var(--brand);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
  margin:0;
}
.faq-a-inner{
  padding:0 18px 16px;
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.85;
}

/* category cta */
.cat-cta-section{
  position:relative;
  border-top:1px solid transparent;
  background:
    linear-gradient(115deg,rgba(7,10,9,.94) 0%,rgba(10,14,13,.88) 55%,rgba(20,26,23,.9) 100%),
    url('/assets/images/backpic/back-6.jpg') center/cover no-repeat;
}
.cat-cta{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding-block:clamp(44px,7vw,76px);
}
.cat-cta::before{
  content:"SWAG";
  position:absolute;
  right:-6px;bottom:-12px;
  font-family:var(--font-mono);
  font-size:clamp(66px,10vw,132px);
  font-weight:900;
  line-height:1;
  letter-spacing:-.04em;
  color:rgba(206,255,84,.07);
  pointer-events:none;
}
.cat-cta__content{
  position:relative;
  max-width:720px;
}
.cat-cta__content h2{
  font-size:clamp(24px,3.6vw,38px);
  font-weight:900;
  line-height:1.2;
  letter-spacing:-.01em;
  margin-top:10px;
}
.cat-cta__content p{
  margin-top:12px;
  color:var(--text-secondary);
  font-size:15px;
}
.cat-cta__actions{
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}

/* footer */
.site-footer{
  background:var(--bg-section);
  border-top:1px solid var(--border-light);
  padding-top:60px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:40px;
  padding-bottom:36px;
}
.footer-brand p{
  max-width:420px;
  margin-top:14px;
  color:var(--text-tertiary);
  font-size:13px;
  line-height:1.9;
}
.footer-brand .brand{margin-top:2px}
.footer-links{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px 40px;
}
.footer-links h4{
  font-size:13px;
  font-weight:800;
  color:var(--text-primary);
  margin-bottom:14px;
  letter-spacing:.04em;
}
.footer-links a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--text-secondary);
  font-size:14px;
  padding:6px 0;
  line-height:1.6;
}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(242,245,242,.06);
  padding-block:16px;
}
.footer-bottom .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  color:var(--text-tertiary);
  font-size:12px;
}

@media (max-width:991px){
  .site-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    background:rgba(7,10,9,.98);
    border-bottom:1px solid var(--border-light);
    padding:0 20px;
    height:0;
    opacity:0;
    overflow:hidden;
    transition:height .26s ease,opacity .22s ease;
    backdrop-filter:blur(18px);
  }
  .site-nav.is-open{
    height:auto;
    padding-block:18px 24px;
    opacity:1;
    overflow:visible;
  }
  .site-nav ul{
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
  }
  .site-nav ul li{width:100%}
  .nav-link{display:block;width:100%;padding:12px 4px;font-size:16px}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .cat-hero__grid{
    grid-template-columns:1fr;
  }
  .cat-hero__panel{
    max-width:460px;
  }
  .content-split{
    grid-template-columns:1fr;
  }
  .sidebar{
    position:static;
    max-height:none;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    align-items:start;
  }
  .scenario-grid{
    grid-template-columns:1fr;
  }
  .faq-grid{
    grid-template-columns:1fr;
  }
  .cat-cta{
    flex-direction:column;
    align-items:flex-start;
    gap:26px;
  }
  .footer-grid{
    grid-template-columns:1fr;
  }
  .footer-links{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:768px){
  .entry-item{
    grid-template-columns:1fr;
  }
  .entry-thumb{
    min-height:0;
    aspect-ratio:16/9;
  }
  .entry-thumb img{
    aspect-ratio:16/9;
  }
  .entry-content{
    padding:16px 16px 14px;
  }
  .entry-title{
    font-size:18px;
  }
}
@media (max-width:640px){
  .filter-strip{
    position:static;
  }
  .hero-panel-stats{
    grid-template-columns:repeat(3,1fr);
    gap:6px;
  }
  .sidebar{
    grid-template-columns:1fr;
  }
  .section-head{
    flex-direction:column;
    align-items:stretch;
  }
  .filter-pill{
    min-height:32px;
    padding:0 13px;
  }
  .entry-bottom{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
  }
  .pagination-btn{
    min-width:38px;
    height:38px;
  }
  .scenario-row{
    grid-template-columns:40px minmax(0,1fr);
    gap:12px;
  }
  .scenario-link{
    grid-column:1 / -1;
    grid-row:auto;
    flex-direction:row;
    justify-content:flex-start;
    gap:6px;
    margin-top:4px;
  }
  .faq-q{
    padding:13px 14px;
    font-size:14px;
  }
  .cat-cta__actions .btn{
    flex:1 1 auto;
  }
  .footer-links{
    grid-template-columns:1fr;
    gap:8px 0;
  }
  .footer-bottom .container{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (max-width:420px){
  .lang-trigger{
    width:38px;
    padding:0 8px;
  }
  .lang-trigger svg{margin-inline:auto}
  .lang-trigger span{display:none}
  .brand{
    font-size:19px;
  }
  .entry-tags a{
    font-size:10px;
    padding:2px 7px;
  }
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}