/* roulang page: index */
:root{
  --bg:#0A0B0D;
  --bg-alt:#121418;
  --card:#1A1D22;
  --line:rgba(255,255,255,.08);
  --title:#F2F4F3;
  --text:#A9B0B4;
  --muted:#6D757A;
  --accent:#22E39B;
  --accent-soft:rgba(34,227,155,.14);
  --amber:#FFB347;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--sans);
  color:var(--title);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.28;
  margin:0 0 .6em;
}
h1{font-size:clamp(32px,4.2vw,60px);line-height:1.14;font-weight:900;}
h2{font-size:clamp(24px,2.9vw,38px);line-height:1.24;}
h3{font-size:clamp(18px,1.7vw,21px);line-height:1.4;}
h4{font-size:15px;font-weight:700;letter-spacing:.06em;}
p{margin:0 0 1.15em;font-size:16px;line-height:1.85;color:var(--text);}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,opacity .2s ease;}
a:hover{color:#ffffff;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
figure{margin:0;}
button{font-family:var(--sans);cursor:pointer;border:none;background:none;}
input,textarea,select{font-family:var(--sans);}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(34,227,155,.28);color:#fff;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ===== header / nav ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(10,11,13,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(34,227,155,.75),rgba(34,227,155,.14) 42%,rgba(255,255,255,.02));
  pointer-events:none;
}
.site-header.is-scrolled{background:rgba(10,11,13,.96);}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;height:72px;transition:height .25s ease;
}
.site-header.is-scrolled .nav-inner{height:60px;}

.brand{display:flex;flex-direction:column;line-height:1.1;gap:2px;flex:0 0 auto;}
.brand-mark{
  font-size:19px;font-weight:900;letter-spacing:-.01em;color:var(--title);
  transition:color .2s ease;
}
.brand-sub{
  font-size:11px;font-weight:500;letter-spacing:.34em;color:var(--accent);
}
.brand:hover .brand-mark{color:var(--accent);}

.primary-nav{flex:1 1 auto;display:flex;justify-content:center;}
.primary-nav ul{display:flex;align-items:center;gap:6px;}
.primary-nav a{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;color:var(--text);
  border-radius:8px;white-space:nowrap;
}
.primary-nav a::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:0;height:2px;border-radius:2px;background:var(--accent);
  transform:translateX(-50%);
  transition:width .22s ease;
  box-shadow:0 0 10px rgba(34,227,155,.55);
}
.primary-nav a:hover{color:var(--title);}
.primary-nav a:hover::after{width:60%;}
.primary-nav a.is-active{color:var(--accent);}
.primary-nav a.is-active::after{width:60%;}

.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  flex-direction:column;gap:6px;background:rgba(255,255,255,.02);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--title);transition:transform .22s ease,background .22s ease;}
.nav-toggle:hover{border-color:rgba(34,227,155,.5);}
.nav-toggle:hover span{background:var(--accent);}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease,opacity .2s ease;
}
.btn-sm{min-height:42px;padding:10px 18px;font-size:14px;}
.btn-primary{
  background:var(--accent);color:#061410;
  box-shadow:0 0 0 rgba(34,227,155,0);
}
.btn-primary:hover{
  background:#4bf0b4;color:#04120c;
  box-shadow:0 0 24px rgba(34,227,155,.32);
}
.btn-ghost{
  background:transparent;color:var(--title);border-color:rgba(255,255,255,.18);
}
.btn-ghost:hover{
  border-color:var(--accent);color:#fff;
  box-shadow:0 0 20px rgba(34,227,155,.18);
}
.btn:disabled{opacity:.4;pointer-events:none;}
.btn-block{width:100%;}

.link-outline{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--title);
  border:1px solid rgba(255,255,255,.16);border-radius:999px;
  padding:9px 20px;transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.link-outline:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 0 18px rgba(34,227,155,.16);}

/* ===== badge ===== */
.badge{
  display:inline-flex;align-items:center;
  padding:3px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  color:var(--amber);
  background:rgba(255,179,71,.1);
  border:1px solid rgba(255,179,71,.28);
  white-space:nowrap;
}

/* ===== section basics ===== */
.section{padding:120px 0;position:relative;}
.section-tight{padding:88px 0;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head .eyebrow{
  display:inline-block;margin-bottom:16px;
  font-family:var(--mono);font-size:12px;letter-spacing:.22em;
  color:var(--accent);text-transform:uppercase;
}
.section-title{position:relative;margin-bottom:18px;}
.section-title::after{
  content:"";display:block;width:56px;height:3px;border-radius:2px;
  margin-top:18px;background:var(--accent);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .55s cubic-bezier(.22,.9,.3,1) .12s;
  box-shadow:0 0 14px rgba(34,227,155,.5);
}
.is-visible .section-title::after{transform:scaleX(1);}
.section-lead{font-size:16px;color:var(--text);margin:0;}

/* ===== hero ===== */
.hero{position:relative;padding:156px 0 104px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 420px at 80% 12%,rgba(34,227,155,.11),transparent 68%),
    radial-gradient(520px 380px at 6% 78%,rgba(255,179,71,.05),transparent 70%);
}
.hero .container{position:relative;z-index:2;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 16px;margin-bottom:24px;
  border-radius:999px;border:1px solid rgba(34,227,155,.32);
  background:rgba(34,227,155,.07);
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.04em;
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(34,227,155,.9);}
.hero h1{margin-bottom:22px;}
.hero h1 span{color:var(--accent);}
.hero-sub{
  max-width:520px;font-size:17px;line-height:1.8;color:var(--text);margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:8px;}

.hero-stats{
  display:flex;flex-wrap:wrap;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stats .stat{
  flex:1 1 0;min-width:130px;padding:0 22px;border-left:1px solid var(--line);
}
.hero-stats .stat:first-child{padding-left:0;border-left:none;}
.hero-stats .stat b{
  display:block;font-family:var(--mono);font-size:26px;font-weight:700;
  color:var(--accent);line-height:1.2;
}
.hero-stats .stat span{font-size:13px;color:var(--muted);}

.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid rgba(34,227,155,.26);
  box-shadow:0 0 42px rgba(34,227,155,.13),var(--shadow);
}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;
  filter:brightness(.84) saturate(1.06);
}
.hero-visual .scan{
  position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(to bottom,rgba(255,255,255,.04) 0 1px,transparent 1px 4px);
}
.hero-visual .corner{
  position:absolute;width:26px;height:26px;border-color:var(--accent);border-style:solid;border-width:0;opacity:.85;
}
.hero-visual .corner.tl{top:12px;left:12px;border-top-width:2px;border-left-width:2px;border-top-left-radius:6px;}
.hero-visual .corner.br{bottom:12px;right:12px;border-bottom-width:2px;border-right-width:2px;border-bottom-right-radius:6px;}
.hero-visual .float-badge{
  position:absolute;right:18px;bottom:18px;
  padding:7px 16px;border-radius:999px;
  background:rgba(10,11,13,.86);border:1px solid rgba(34,227,155,.4);
  font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.04em;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}

/* ===== pain list ===== */
.pain-list{margin-top:8px;border-top:1px solid var(--line);}
.pain-list li{
  display:flex;gap:28px;align-items:flex-start;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.pain-list li:hover{background:rgba(255,255,255,.015);}
.pain-list .num{
  flex:0 0 auto;font-family:var(--mono);font-size:30px;font-weight:700;
  color:rgba(34,227,155,.55);line-height:1.1;letter-spacing:-.02em;
  min-width:56px;
}
.pain-list h3{margin-bottom:8px;}
.pain-list p{margin:0;font-size:15px;color:var(--text);max-width:840px;}

/* ===== split blocks ===== */
.split{margin-bottom:96px;}
.split:last-child{margin-bottom:0;}
.split-media{position:relative;margin-bottom:28px;}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
  filter:brightness(.86) saturate(1.04);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.split-media:hover img{border-color:rgba(34,227,155,.38);box-shadow:0 0 24px rgba(34,227,155,.16);}
.split-copy h2{margin-bottom:18px;}
.split-copy p{font-size:16px;}
.split-copy .link-outline{margin-top:6px;}

/* ===== results ===== */
.results{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.results::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px 320px at 30% 0%,rgba(34,227,155,.1),transparent 70%);
}
.results .container{position:relative;z-index:2;}
.result-grid{
  display:flex;flex-wrap:wrap;
  margin-top:8px;border-top:1px solid var(--line);padding-top:44px;
}
.result-item{
  flex:1 1 0;min-width:170px;padding:0 28px;border-left:1px solid var(--line);
}
.result-item:first-child{padding-left:0;border-left:none;}
.result-item b{
  display:block;font-family:var(--mono);font-size:clamp(38px,4.4vw,58px);
  font-weight:700;line-height:1.05;color:var(--title);letter-spacing:-.03em;
}
.result-item b em{font-style:normal;color:var(--accent);font-size:.5em;margin-left:4px;}
.result-item span{display:block;margin-top:10px;font-size:14px;color:var(--muted);}

/* ===== quotes ===== */
.quote-grid{margin-top:6px;}
.quote-card{
  position:relative;height:100%;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:34px 30px 30px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.quote-card:hover{border-color:rgba(34,227,155,.36);box-shadow:0 0 22px rgba(34,227,155,.14);}
.quote-card .mark{
  font-family:var(--mono);font-size:44px;line-height:1;color:rgba(34,227,155,.4);
  margin-bottom:10px;
}
.quote-card blockquote{
  margin:0 0 24px;font-size:19px;line-height:1.7;color:var(--title);font-weight:500;
}
.quote-card .who{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--muted);}
.quote-card .who .avatar{
  width:38px;height:38px;border-radius:50%;
  background:rgba(34,227,155,.14);border:1px solid rgba(34,227,155,.3);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;color:var(--accent);
}
.quote-card .who strong{display:block;color:var(--title);font-size:14px;font-weight:700;}

/* ===== post cards ===== */
.card-cell{margin-bottom:28px;}
.post-card{
  height:100%;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{border-color:rgba(34,227,155,.42);box-shadow:0 0 22px rgba(34,227,155,.16);}
.post-card-media{display:block;overflow:hidden;background:#0d0f12;}
.post-card-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;
  transition:transform .35s ease;
  filter:brightness(.88);
}
.post-card:hover .post-card-media img{transform:scale(1.03);}
.post-card-body{padding:24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-card-body .badge{align-self:flex-start;margin-bottom:14px;}
.post-card-body h3{
  font-size:18px;margin-bottom:10px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-body h3 a{color:var(--title);}
.post-card-body h3 a:hover{color:var(--accent);}
.post-card-body p{
  font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:20px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.post-card-foot time{font-family:var(--mono);font-size:12px;color:var(--muted);}
.arrow-link{font-size:13px;font-weight:700;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}
.arrow-link .arw{transition:transform .2s ease;}
.arrow-link:hover .arw{transform:translateX(4px);}

.empty-state{
  text-align:center;padding:64px 24px;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-card);
  background:rgba(255,255,255,.015);
}
.empty-state p{margin-bottom:22px;color:var(--muted);font-size:15px;}

/* ===== accordion / faq ===== */
.faq-wrap{margin-top:8px;}
.accordion{
  background:transparent;border:none;margin:0;border-top:1px solid var(--line);
}
.accordion-item{background:transparent;border-bottom:1px solid var(--line);}
.accordion-title{
  background:transparent;border:none;border-radius:0;
  color:var(--title);font-size:17px;font-weight:700;line-height:1.6;
  padding:24px 52px 24px 0;position:relative;
  transition:color .2s ease;
}
.accordion-title:hover{color:var(--accent);}
.accordion-title::before{
  content:"+";
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;margin:0;padding:0;
  font-family:var(--mono);font-size:22px;font-weight:400;line-height:1;
  color:var(--accent);background:none;
  transition:transform .2s ease;
}
.accordion-item.is-active > .accordion-title::before{content:"−";transform:translateY(-50%) rotate(0deg);}
.accordion-title .faq-num{
  font-family:var(--mono);font-size:13px;color:var(--muted);
  margin-right:14px;letter-spacing:.06em;
}
.accordion-content{
  background:transparent;border:none;padding:0 60px 26px 0;
  color:var(--text);font-size:15px;line-height:1.85;
}
.accordion-content p:last-child{margin-bottom:0;}

/* ===== cta ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:#0d0f12;
  border-top:1px solid var(--line);
  padding:104px 0;
  text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 340px at 50% 110%,rgba(34,227,155,.16),transparent 72%);
}
.cta-band::after{
  content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:min(760px,84%);height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,227,155,.85),transparent);
  box-shadow:0 0 18px rgba(34,227,155,.55);
}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{margin-bottom:16px;}
.cta-band p{max-width:620px;margin:0 auto 34px;font-size:16px;color:var(--text);}

/* ===== footer ===== */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:72px 0 30px;
}
.footer-brand{margin-bottom:18px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--muted);max-width:340px;margin:0;}
.footer-title{
  font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--title);text-transform:uppercase;margin-bottom:18px;
}
.footer-links li{margin-bottom:10px;font-size:14px;color:var(--muted);line-height:1.7;}
.footer-links a{color:var(--muted);}
.footer-links a:hover{color:var(--accent);}
.footer-grid{padding-bottom:52px;}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:24px;
  display:flex;flex-wrap:wrap;gap:10px 32px;justify-content:space-between;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--muted);}

/* ===== mobile drawer ===== */
.nav-drawer{
  position:fixed;inset:0;z-index:1000;
  background:rgba(8,9,11,.985);
  display:flex;flex-direction:column;
  padding:28px 24px 34px;
  transform:translateX(100%);
  visibility:hidden;
  transition:transform .3s cubic-bezier(.22,.9,.3,1),visibility .3s ease;
}
.nav-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-close{
  align-self:flex-end;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);color:var(--title);font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:24px;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-list{flex:1 1 auto;}
.drawer-list li{border-bottom:1px solid var(--line);}
.drawer-list a{
  display:flex;align-items:center;gap:16px;
  padding:20px 4px;font-size:20px;font-weight:700;color:var(--title);
}
.drawer-list a .mono{font-size:13px;color:var(--accent);letter-spacing:.1em;}
.drawer-list a:hover{color:var(--accent);}
.drawer-cta{margin-top:26px;}

/* ===== reveal animation ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s ease,transform .48s cubic-bezier(.22,.9,.3,1);}
.reveal.is-visible{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  .section-title::after{transform:scaleX(1);transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ===== responsive ===== */
@media screen and (max-width:1199px){
  .section{padding:96px 0;}
  .hero{padding:132px 0 84px;}
  .primary-nav a{padding:10px 10px;font-size:14px;}
  .hero-sub{max-width:none;}
}

@media screen and (max-width:991px){
  .primary-nav,.nav-right .btn{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:80px 0;}
  .hero{padding:120px 0 72px;}
  .hero-visual{margin-top:52px;}
  .split{margin-bottom:64px;}
  .pain-list li{gap:18px;padding:24px 0;}
  .result-item{padding:0 18px;min-width:140px;}
  .cta-band{padding:80px 0;}
  .site-footer{padding:56px 0 26px;}
  .footer-grid{padding-bottom:36px;}
}

@media screen and (max-width:767px){
  body{font-size:15px;}
  .section{padding:64px 0;}
  .hero{padding:108px 0 56px;}
  .hero h1{font-size:clamp(30px,8.4vw,38px);}
  .hero-sub{font-size:15px;margin-bottom:26px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .hero-stats{margin-top:34px;padding-top:20px;}
  .hero-stats .stat{flex:1 1 45%;border-left:none;padding:0 0 16px;}
  .hero-stats .stat:nth-child(odd){padding-right:16px;}
  .hero-stats .stat b{font-size:22px;}
  .result-grid{border-top:none;padding-top:0;}
  .result-item{flex:1 1 100%;border-left:none;padding:22px 0;border-top:1px solid var(--line);}
  .result-item:first-child{border-top:none;padding-top:0;}
  .result-grid{border-top:1px solid var(--line);padding-top:26px;}
  .post-card-body{padding:20px;}
  .quote-card{padding:26px 22px;margin-bottom:24px;}
  .quote-card blockquote{font-size:17px;}
  .accordion-title{font-size:16px;padding:20px 44px 20px 0;}
  .accordion-content{padding:0 0 22px;font-size:14px;}
  .footer-bottom{flex-direction:column;}
  .pain-list .num{font-size:24px;min-width:44px;}
  .pain-list h3{font-size:17px;}
}

@media screen and (max-width:519px){
  .container{padding:0 18px;}
  .hero{padding:100px 0 48px;}
  .btn{min-height:46px;padding:12px 20px;font-size:14px;}
  .hero-eyebrow{font-size:12px;padding:5px 13px;}
  .section-head{margin-bottom:34px;}
  .hero-stats .stat{flex:1 1 100%;padding-right:0 !important;}
}

/* roulang page: article */
:root{
  --bg:#0A0B0D;
  --bg-soft:#121418;
  --card:#1A1D22;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F2F4F3;
  --muted:#A9B0B4;
  --dim:#6D757A;
  --mint:#22E39B;
  --amber:#FFB347;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --glow:0 0 20px rgba(34,227,155,.18);
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sec-space:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--mint);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:#5CF3BC;}
a:focus-visible,button:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:800;color:var(--text);letter-spacing:-.02em;line-height:1.25;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;}
::selection{background:rgba(34,227,155,.28);color:#fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-space) 0;}
.section--soft{background:var(--bg-soft);}
.section--tight{padding:72px 0;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,11,13,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(34,227,155,.75),rgba(34,227,155,.12) 45%,rgba(255,255,255,0) 100%);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:72px;transition:min-height .22s ease;
}
.site-header.is-scrolled .header-inner{min-height:60px;}
.brand{display:inline-flex;flex-direction:column;line-height:1.05;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{font-size:20px;font-weight:900;letter-spacing:-.02em;}
.brand-mark em{font-style:normal;color:var(--mint);}
.brand-sub{font-size:11px;letter-spacing:.32em;color:var(--dim);margin-top:5px;}
.primary-nav ul{display:flex;align-items:center;gap:6px;}
.primary-nav a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.primary-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:2px;border-radius:2px;background:var(--mint);
  transform:translateX(-50%);
  transition:width .22s ease;
  box-shadow:0 0 10px rgba(34,227,155,.6);
}
.primary-nav a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.primary-nav a:hover::after,.primary-nav a.is-active::after{width:60%;}
.primary-nav a.is-active{color:var(--mint);}
.header-actions{display:flex;align-items:center;gap:12px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:0;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,filter .2s ease;
  text-align:center;
}
.btn-primary{background:var(--mint);color:#06251A;border-color:var(--mint);}
.btn-primary:hover{background:#4BF0B5;color:#041C14;box-shadow:0 0 20px rgba(34,227,155,.28);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover{border-color:var(--mint);color:#fff;box-shadow:var(--glow);}
.btn-sm{min-height:40px;padding:8px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;pointer-events:none;}

.nav-toggle{
  display:none;width:46px;height:46px;border-radius:10px;
  background:transparent;border:1px solid var(--line-strong);
  align-items:center;justify-content:center;flex-direction:column;gap:6px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}

.drawer{
  position:fixed;inset:0;z-index:200;
  background:rgba(8,9,11,.98);
  transform:translateX(100%);
  transition:transform .3s ease;
  display:flex;flex-direction:column;
  padding:28px 24px 32px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{width:46px;height:46px;border-radius:10px;background:transparent;border:1px solid var(--line-strong);color:var(--text);font-size:22px;line-height:1;}
.drawer ul{display:flex;flex-direction:column;gap:2px;margin-bottom:28px;}
.drawer a.drawer-link{
  display:flex;align-items:center;gap:14px;
  padding:16px 4px;font-size:19px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link:hover{color:var(--mint);}
.drawer a.drawer-link .num{font-family:var(--mono);font-size:12px;color:var(--dim);letter-spacing:.08em;}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;
  padding:56px 0 48px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(10,11,13,.72) 0%,rgba(10,11,13,.95) 62%,#0A0B0D 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;right:-10%;top:-30%;width:520px;height:520px;
  background:radial-gradient(circle,rgba(34,227,155,.14),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);margin-bottom:22px;
}
.breadcrumb a{color:var(--dim);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  color:var(--amber);border:1px solid rgba(255,179,71,.34);
  background:rgba(255,179,71,.08);
}
.article-hero h1{
  font-size:52px;font-weight:900;line-height:1.16;letter-spacing:-.02em;
  margin:20px 0 22px;max-width:940px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13.5px;color:var(--dim);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-row .meta-item strong{color:var(--muted);font-weight:600;}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2);}
.meta-row .mono{font-family:var(--mono);font-size:12.5px;letter-spacing:.03em;color:var(--muted);}

/* ---------- Article body ---------- */
.article-main{padding:64px 0 96px;}
.article-wrap{max-width:760px;margin:0 auto;}
.article-body{font-size:17px;line-height:1.9;color:var(--muted);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.35em;font-size:17px;line-height:1.9;color:var(--muted);}
.article-body h2{
  position:relative;
  font-size:30px;font-weight:800;color:var(--text);
  margin:2.1em 0 .85em;padding-left:16px;border-left:3px solid var(--mint);
  line-height:1.35;
}
.article-body h3{
  font-size:21px;font-weight:800;color:var(--text);
  margin:1.9em 0 .7em;line-height:1.4;
}
.article-body h4{font-size:18px;font-weight:700;color:var(--text);margin:1.6em 0 .6em;}
.article-body a{color:var(--mint);text-decoration:underline;text-decoration-color:rgba(34,227,155,.4);text-underline-offset:3px;}
.article-body a:hover{text-decoration-color:var(--mint);}
.article-body strong{color:#E7ECEA;font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:0;}
.article-body ul li,.article-body ol li{
  position:relative;
  padding-left:22px;margin-bottom:.6em;line-height:1.8;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--mint);
  box-shadow:0 0 10px rgba(34,227,155,.5);
}
.article-body ol{counter-reset:item;}
.article-body ol li{padding-left:30px;counter-increment:item;}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:.1em;
  font-family:var(--mono);font-size:13px;color:var(--mint);font-weight:600;
}
.article-body blockquote{
  margin:1.8em 0;padding:18px 22px;
  border-left:2px solid var(--mint);
  background:rgba(255,255,255,.035);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:#C9D1CF;font-size:16.5px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:1.6em 0;border:1px solid var(--line);filter:brightness(.92);}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{
  margin-top:10px;font-size:13px;color:var(--dim);text-align:center;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{color:var(--text);font-weight:700;background:rgba(255,255,255,.03);}
.article-body code{
  font-family:var(--mono);font-size:.92em;color:#CFF6E5;
  background:rgba(34,227,155,.1);padding:2px 7px;border-radius:6px;
}
.article-body pre{
  background:#0E1013;border:1px solid var(--line);border-radius:var(--r-img);
  padding:18px;overflow-x:auto;margin:1.6em 0;
}
.article-body pre code{background:none;padding:0;}

.empty-state{
  padding:64px 24px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.empty-state p{font-size:17px;color:var(--muted);margin-bottom:20px;}

.divider{height:1px;background:var(--line);margin:56px 0;border:0;}

.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;}

/* ---------- Related cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.info-card:hover{border-color:rgba(34,227,155,.4);box-shadow:var(--glow);transform:translateY(-2px);}
.info-card .thumb{overflow:hidden;aspect-ratio:16/10;background:#0E1013;}
.info-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  border-radius:0;margin:0;
  transition:transform .35s ease;
  filter:brightness(.86);
}
.info-card:hover .thumb img{transform:scale(1.03);}
.info-card .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.info-card h3{font-size:18px;font-weight:800;line-height:1.45;color:var(--text);}
.info-card p{font-size:14px;line-height:1.75;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-card .foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.info-card .foot time{font-family:var(--mono);font-size:12.5px;color:var(--dim);}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--mint);}
.arrow-link .arrow{transition:transform .2s ease;}
.arrow-link:hover .arrow{transform:translateX(4px);}

.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{
  position:relative;display:inline-block;
  font-size:34px;font-weight:900;letter-spacing:-.02em;line-height:1.25;
}
.section-head h2::after{
  content:"";position:absolute;left:0;bottom:-14px;height:2px;width:72px;
  background:linear-gradient(90deg,var(--mint),rgba(34,227,155,0));
  border-radius:2px;
}
.section-head p{margin-top:28px;color:var(--muted);font-size:16px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  padding:88px 0;
  background:linear-gradient(180deg,#0E1014 0%,#121418 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  text-align:center;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:min(760px,90%);height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,227,155,.75),transparent);
}
.cta-band h2{font-size:38px;font-weight:900;letter-spacing:-.02em;margin-bottom:18px;}
.cta-band p{max-width:620px;margin:0 auto 32px;color:var(--muted);font-size:16.5px;line-height:1.85;}

/* ---------- Footer ---------- */
.site-footer{
  background:#08090B;
  border-top:1px solid var(--line);
  padding:72px 0 36px;
}
.footer-grid{row-gap:36px;}
.footer-brand{margin-bottom:18px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--dim);max-width:340px;margin:0;}
.footer-title{
  font-size:13px;font-weight:800;letter-spacing:.14em;
  color:var(--text);margin-bottom:18px;
}
.footer-links li{margin-bottom:11px;font-size:14px;color:var(--dim);line-height:1.6;}
.footer-links a{color:var(--muted);font-size:14px;}
.footer-links a:hover{color:var(--mint);}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--dim);
}
.footer-bottom p{margin:0;}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s ease-out,transform .48s ease-out;}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{animation:none!important;transition:none!important;}
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1199px){
  :root{--sec-space:96px;}
  .article-hero h1{font-size:44px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:991px){
  :root{--sec-space:80px;}
  .primary-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-sm{display:none;}
  .article-hero{padding:44px 0 40px;}
  .article-hero h1{font-size:36px;}
  .article-main{padding:52px 0 72px;}
  .section-head h2{font-size:29px;}
  .cta-band h2{font-size:30px;}
}
@media screen and (max-width:767px){
  :root{--sec-space:60px;}
  .container{padding:0 18px;}
  .header-inner{min-height:64px;}
  .brand-mark{font-size:18px;}
  .brand-sub{font-size:10px;letter-spacing:.28em;}
  .article-hero h1{font-size:30px;line-height:1.28;}
  .article-body,.article-body p{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:24px;margin:1.8em 0 .7em;}
  .article-body h3{font-size:19px;}
  .card-grid{grid-template-columns:1fr;}
  .meta-row{gap:10px;font-size:12.5px;}
  .cta-band{padding:64px 0;}
  .cta-band h2{font-size:26px;}
  .cta-band p{font-size:15px;}
  .btn{width:100%;}
  .back-row{flex-direction:column;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:519px){
  .article-hero h1{font-size:26px;}
  .section-head h2{font-size:24px;}
  .footer-desc{max-width:none;}
}

/* roulang page: category1 */
:root{
  --bg:#0A0B0D;
  --bg-soft:#121418;
  --card:#1A1D22;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F2F4F3;
  --body:#A9B0B4;
  --muted:#6D757A;
  --accent:#22E39B;
  --accent-soft:rgba(34,227,155,.12);
  --amber:#FFB347;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --glow:0 0 20px rgba(34,227,155,.18);
  --container:1200px;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease;}
h1,h2,h3,h4,p,figure{margin:0;}
h1,h2,h3,h4{color:var(--text);line-height:1.22;font-weight:700;letter-spacing:-.02em;}
ul,ol{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
::selection{background:rgba(34,227,155,.28);color:#fff;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:112px 0;}
.section--soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:56px;}
.section-head h2{font-size:clamp(24px,3vw,38px);font-weight:900;margin-bottom:16px;position:relative;padding-bottom:18px;}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:64px;height:3px;border-radius:2px;background:var(--accent);box-shadow:0 0 14px rgba(34,227,155,.5);}
.section-head p{font-size:16px;line-height:1.85;color:var(--body);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-primary{background:var(--accent);color:#052a1e;}
.btn-primary:hover{background:#3af0af;color:#04231a;box-shadow:0 0 22px rgba(34,227,155,.35);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{border-color:rgba(34,227,155,.6);color:#fff;box-shadow:var(--glow);}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.btn:disabled{opacity:.4;cursor:not-allowed;}
.link-outline{
  display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:0 18px;
  border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  font-size:14px;color:var(--text);transition:all .2s ease;
}
.link-outline::after{content:"→";font-family:var(--mono);transition:transform .2s ease;}
.link-outline:hover{border-color:rgba(34,227,155,.55);color:var(--accent);box-shadow:var(--glow);}
.link-outline:hover::after{transform:translateX(4px);}
.link-outline:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,13,.88);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:height .2s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(34,227,155,.7),rgba(34,227,155,.16) 45%,rgba(255,255,255,0) 100%);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  max-width:var(--container);margin:0 auto;padding:0 24px;height:72px;
}
.brand{display:inline-flex;flex-direction:column;line-height:1.05;flex-shrink:0;}
.brand-mark{font-size:19px;font-weight:900;letter-spacing:.05em;color:var(--text);}
.brand-sub{font-family:var(--mono);font-size:11px;letter-spacing:.34em;color:var(--accent);margin-top:5px;}
.primary-nav ul{display:flex;align-items:center;gap:4px;}
.primary-nav a{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;
  color:var(--body);border-radius:var(--radius-btn);white-space:nowrap;
}
.primary-nav a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.primary-nav a.is-active{color:var(--accent);}
.primary-nav a.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:60%;height:2px;border-radius:2px;background:var(--accent);
  box-shadow:0 0 12px rgba(34,227,155,.65);
}
.primary-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-cta{padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);position:relative;
}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--text);border-radius:2px;transition:transform .22s ease;}
.nav-toggle span:nth-child(1){top:16px;}
.nav-toggle span:nth-child(2){top:24px;}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* 抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:90;padding:28px 24px;
  background:rgba(8,9,11,.985);
  display:flex;flex-direction:column;
  transform:translateX(100%);visibility:hidden;
  transition:transform .3s ease,visibility .3s ease;
}
.nav-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-close{
  align-self:flex-end;width:44px;height:44px;border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);color:var(--text);font-size:22px;line-height:1;
}
.drawer-close:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.drawer-list{margin-top:36px;display:grid;gap:2px;}
.drawer-list a{
  display:flex;align-items:center;gap:16px;padding:18px 4px;
  font-size:20px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--accent);}
.drawer-num{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.12em;}
.drawer-cta{margin-top:auto;width:100%;}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;padding:64px 0 88px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(10,11,13,.78) 0%,rgba(10,11,13,.94) 70%,rgba(10,11,13,.99) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:32px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;
  color:var(--accent);border:1px solid rgba(34,227,155,.32);
  border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:22px;
  background:rgba(34,227,155,.06);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,54px);
  font-weight:900;line-height:1.16;letter-spacing:-.02em;
  max-width:16em;
}
.hero-lead{margin-top:24px;font-size:clamp(16px,1.5vw,18px);line-height:1.9;color:var(--body);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);margin:0;
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.92) brightness(.85);}
.hero-media::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.035) 0 1px,transparent 1px 4px);
}
.hero-media::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,11,13,0) 42%,rgba(10,11,13,.88) 100%);
}
.hero-media figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:13px;line-height:1.7;color:var(--body);
}
.hero-badge{
  position:absolute;right:16px;top:16px;z-index:2;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  color:var(--amber);border:1px solid rgba(255,179,71,.45);
  background:rgba(10,11,13,.7);border-radius:var(--radius-pill);padding:5px 12px;
}

/* ============ 编号条目流 ============ */
.step-list{border-top:1px solid var(--line);}
.step-item{
  display:grid;grid-template-columns:132px minmax(0,1fr);gap:36px;
  padding:40px 0;border-bottom:1px solid var(--line);
  transition:background-color .25s ease;
}
.step-item:hover{background:rgba(255,255,255,.015);}
.step-num{
  font-family:var(--mono);font-size:46px;font-weight:700;line-height:1;
  color:rgba(34,227,155,.32);letter-spacing:-.03em;
  transition:color .25s ease,text-shadow .25s ease;
}
.step-item:hover .step-num{color:var(--accent);text-shadow:0 0 22px rgba(34,227,155,.45);}
.step-tag{
  display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  color:var(--amber);border:1px solid rgba(255,179,71,.34);
  border-radius:var(--radius-pill);padding:3px 12px;margin-bottom:16px;
}
.step-body h3{font-size:clamp(19px,2vw,22px);margin-bottom:14px;letter-spacing:-.01em;}
.step-body p{font-size:16px;line-height:1.9;color:var(--body);max-width:760px;margin-bottom:22px;}

/* ============ 数据条 ============ */
.stats{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:64px 0;}
.stats-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.stat{padding:0 28px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{display:block;font-family:var(--mono);font-size:clamp(30px,3.6vw,46px);font-weight:700;line-height:1.1;color:var(--accent);letter-spacing:-.02em;}
.stat-num small{font-size:.5em;font-weight:500;color:var(--muted);margin-left:4px;}
.stat-label{display:block;margin-top:10px;font-size:14px;color:var(--muted);}

/* ============ 图文要点 ============ */
.insight{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.insight-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow-card);}
.insight-media img{width:100%;aspect-ratio:5/4;object-fit:cover;filter:saturate(.92) brightness(.86);}
.insight-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,0) 50%,rgba(10,11,13,.7) 100%);pointer-events:none;}
.insight-body h2{font-size:clamp(24px,3vw,36px);font-weight:900;margin-bottom:20px;line-height:1.25;}
.insight-body p{font-size:16px;line-height:1.9;color:var(--body);margin-bottom:16px;}
.check-list{display:grid;gap:14px;margin:26px 0 30px;}
.check-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.8;color:var(--body);}
.check-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;
  background:var(--accent);border-radius:2px;box-shadow:0 0 10px rgba(34,227,155,.5);
}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;gap:18px;width:100%;
  padding:24px 4px;text-align:left;color:var(--text);
  font-size:clamp(16px,1.7vw,18px);font-weight:600;line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;border-radius:6px;}
.faq-index{font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.1em;flex-shrink:0;}
.faq-text{flex:1 1 auto;min-width:0;}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent);
  border-radius:2px;transform:translate(-50%,-50%);transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{padding:0 4px 26px 46px;}
.faq-a p{font-size:15.5px;line-height:1.9;color:var(--body);max-width:820px;}
.faq-a[hidden]{display:none;}

/* ============ CTA ============ */
.cta-band{
  position:relative;padding:96px 0;text-align:center;overflow:hidden;
  background:
    radial-gradient(circle at 18% 0%,rgba(34,227,155,.14),transparent 58%),
    radial-gradient(circle at 82% 100%,rgba(255,179,71,.08),transparent 55%),
    var(--bg-soft);
  border-top:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,227,155,.6),transparent);
}
.cta-band h2{font-size:clamp(24px,3.2vw,40px);font-weight:900;margin-bottom:18px;}
.cta-band p{font-size:16px;line-height:1.9;color:var(--body);max-width:640px;margin:0 auto 34px;}

/* ============ 页脚 ============ */
.site-footer{background:#0C0D10;border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{row-gap:40px;}
.footer-brand{margin-bottom:20px;}
.footer-desc{font-size:14px;line-height:1.9;color:var(--muted);max-width:340px;}
.footer-title{font-size:13px;letter-spacing:.18em;color:var(--text);margin-bottom:20px;font-weight:700;}
.footer-links{display:grid;gap:11px;}
.footer-links li{font-size:14px;line-height:1.7;color:var(--muted);}
.footer-links a{color:var(--muted);}
.footer-links a:hover{color:var(--accent);}
.footer-links a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:56px;padding:24px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s ease-out,transform .48s ease-out;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .primary-nav a{padding:10px 10px;font-size:14px;}
  .step-item{grid-template-columns:110px minmax(0,1fr);gap:28px;}
}
@media (max-width:991px){
  .primary-nav{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:block;}
  .section{padding:80px 0;}
  .page-hero{padding:48px 0 64px;}
  .hero-media{margin-top:40px;}
  .insight{grid-template-columns:1fr;gap:36px;}
  .insight-media img{aspect-ratio:16/9;}
  .stats{padding:48px 0;}
  .stats-row{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:32px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .cta-band{padding:72px 0;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .nav-inner{height:64px;padding:0 20px;}
  .brand-mark{font-size:17px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .page-hero{padding:36px 0 52px;}
  .page-hero h1{font-size:clamp(27px,7.4vw,36px);}
  .hero-lead{font-size:15.5px;margin-top:18px;}
  .hero-actions{gap:12px;margin-top:28px;}
  .hero-actions .btn{width:100%;}
  .breadcrumb{font-size:12px;margin-bottom:22px;}
  .step-item{grid-template-columns:1fr;gap:16px;padding:30px 0;}
  .step-num{font-size:32px;}
  .step-body p{font-size:15.5px;}
  .link-outline{width:100%;justify-content:space-between;}
  .stats-row{grid-template-columns:1fr;row-gap:26px;}
  .stat{border-left:0;padding:0 0 0 16px;border-left:2px solid rgba(34,227,155,.28);}
  .stat:first-child{padding-left:16px;}
  .faq-q{padding:20px 2px;gap:12px;}
  .faq-a{padding:0 2px 22px 34px;}
  .cta-band{padding:56px 0;}
  .cta-band .btn{width:100%;}
  .footer-bottom{flex-direction:column;margin-top:40px;}
  .site-footer{padding:56px 0 0;}
}
@media (max-width:519px){
  .hero-badge{display:none;}
  .hero-media figcaption{font-size:12px;left:14px;right:14px;bottom:12px;}
  .drawer-list a{font-size:18px;padding:16px 4px;}
}

/* roulang page: category2 */
:root{
  --bg:#0A0B0D;
  --bg-soft:#121418;
  --bg-card:#1A1D22;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F2F4F3;
  --text-body:#A9B0B4;
  --text-muted:#6D757A;
  --accent:#22E39B;
  --accent-soft:rgba(34,227,155,.14);
  --warm:#FFB347;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --glow:0 0 20px rgba(34,227,155,.18);
  --container:1200px;
  --sp-section:120px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-body);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease;}
a:hover{color:#5cf0bb;}
h1,h2,h3,h4{color:var(--text);font-weight:800;letter-spacing:-.02em;line-height:1.2;margin:0;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(10,11,13,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,background-color .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(34,227,155,.85),rgba(34,227,155,.18) 42%,rgba(255,255,255,0) 88%);
  pointer-events:none;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;flex-direction:column;line-height:1;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  font-family:var(--sans);font-weight:900;font-size:19px;letter-spacing:.02em;
  color:var(--text);text-shadow:0 0 18px rgba(34,227,155,.28);
}
.brand-sub{
  font-family:var(--mono);font-size:10px;letter-spacing:.42em;
  color:var(--accent);margin-top:5px;text-transform:uppercase;
}
.primary-nav ul{display:flex;align-items:center;gap:30px;}
.primary-nav a{
  position:relative;display:inline-block;padding:6px 0;
  color:var(--text-body);font-size:15px;font-weight:500;
}
.primary-nav a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--accent);border-radius:2px;box-shadow:0 0 12px rgba(34,227,155,.55);
  transition:width .22s ease;
}
.primary-nav a:hover{color:var(--text);}
.primary-nav a:hover::after{width:60%;}
.primary-nav a.is-active{color:var(--accent);}
.primary-nav a.is-active::after{width:60%;}
.header-actions{display:flex;align-items:center;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#06110D;box-shadow:0 0 0 rgba(34,227,155,0);}
.btn-primary:hover{background:#3defad;color:#06110D;box-shadow:var(--glow);}
.btn-primary:active{background:#17c886;}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{border-color:var(--accent);color:#fff;box-shadow:var(--glow);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;}
.nav-burger{
  display:none;width:44px;height:44px;background:transparent;border:1px solid var(--line-strong);
  border-radius:var(--r-btn);position:relative;
}
.nav-burger span{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:1.5px;background:var(--text);border-radius:2px;transition:.2s ease;
}
.nav-burger span:nth-child(1){top:17px;}
.nav-burger span:nth-child(2){top:24px;}
.nav-burger:hover{border-color:var(--accent);box-shadow:var(--glow);}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(10,11,13,.98);
  padding:88px 28px 32px;display:none;flex-direction:column;
}
.drawer.is-open{display:flex;}
.drawer-close{
  position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--line-strong);color:var(--text);font-size:18px;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer ul{display:flex;flex-direction:column;gap:6px;}
.drawer a{
  display:flex;align-items:center;gap:14px;padding:16px 4px;font-size:20px;font-weight:700;
  color:var(--text);border-bottom:1px solid var(--line);min-height:44px;
}
.drawer a .idx{font-family:var(--mono);font-size:12px;color:var(--text-muted);letter-spacing:.1em;}
.drawer a:hover,.drawer a.is-active{color:var(--accent);}
.drawer-foot{margin-top:auto;padding-top:28px;}

/* ---------- page shell ---------- */
main{padding-top:72px;}
.section{padding:var(--sp-section) 0;}
.section-sm{padding:80px 0;}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head h2{font-size:36px;margin-bottom:16px;}
.section-head p{font-size:16px;color:var(--text-body);}
.rule-line{display:block;height:2px;width:64px;background:var(--accent);border-radius:2px;margin-top:18px;box-shadow:0 0 16px rgba(34,227,155,.5);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;
  letter-spacing:.18em;color:var(--accent);text-transform:uppercase;margin-bottom:16px;
}

/* breadcrumb */
.breadcrumb-wrap{border-bottom:1px solid var(--line);background:var(--bg-soft);}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;font-size:13px;color:var(--text-muted);
}
.breadcrumb a{color:var(--text-muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.2);}
.breadcrumb .current{color:var(--text-body);}

/* hero */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:
  radial-gradient(900px 420px at 82% 8%,rgba(34,227,155,.10),transparent 62%),
  linear-gradient(180deg,#0A0B0D 0%,#0E1014 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{padding:76px 0 80px;align-items:center;}
.hero-copy h1{font-size:clamp(32px,4.4vw,58px);line-height:1.1;margin-bottom:22px;}
.hero-copy h1 em{font-style:normal;color:var(--accent);}
.hero-lead{font-size:17px;color:var(--text-body);max-width:560px;margin-bottom:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;border:1px solid var(--line-strong);color:var(--text-body);background:rgba(255,255,255,.02);
}
.tag-accent{color:var(--accent);border-color:rgba(34,227,155,.38);background:rgba(34,227,155,.08);}
.tag-warm{color:var(--warm);border-color:rgba(255,179,71,.34);background:rgba(255,179,71,.08);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow);}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2;border-radius:0;filter:brightness(.92) saturate(1.05);}
.hero-figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.035) 0 1px,transparent 1px 5px),
             linear-gradient(180deg,rgba(10,11,13,0) 45%,rgba(10,11,13,.72) 100%);
}
.hero-badge{
  position:absolute;right:16px;bottom:16px;z-index:3;
  padding:7px 14px;border-radius:var(--r-pill);border:1px solid rgba(34,227,155,.5);
  background:rgba(10,11,13,.78);font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--accent);
}

/* ---------- staggered cards ---------- */
.stagger-section{background:var(--bg);}
.stagger-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:56px 40px;padding-bottom:76px;
}
.stagger-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);transition:border-color .22s ease,box-shadow .22s ease;
}
.stagger-card:nth-child(even){margin-top:84px;}
.stagger-card:hover{border-color:rgba(34,227,155,.4);box-shadow:var(--shadow),var(--glow);}
.stagger-media{overflow:hidden;background:#0E1014;}
.stagger-media img{
  width:100%;height:230px;object-fit:cover;border-radius:0;
  filter:brightness(.86) saturate(1.04);transition:transform .24s ease;
}
.stagger-card:hover .stagger-media img{transform:scale(1.03);}
.stagger-body{padding:26px 28px 28px;}
.stagger-meta{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.stagger-body h3{font-size:21px;margin-bottom:12px;}
.stagger-body p{font-size:15.5px;color:var(--text-body);margin-bottom:14px;}
.link-outline{
  display:inline-flex;align-items:center;gap:8px;margin-top:6px;padding:9px 18px;
  border:1px solid var(--line-strong);border-radius:var(--r-btn);
  font-size:14px;font-weight:700;color:var(--text);min-height:44px;
}
.link-outline i{font-size:12px;transition:transform .2s ease;}
.link-outline:hover{border-color:var(--accent);color:#fff;box-shadow:var(--glow);}
.link-outline:hover i{transform:translateX(4px);}

/* ---------- stat strip ---------- */
.stat-strip{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0;}
.stat-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.stat-item{padding:0 26px;border-left:1px solid var(--line);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-family:var(--mono);font-size:38px;font-weight:600;color:var(--accent);line-height:1;letter-spacing:-.02em;}
.stat-label{display:block;margin-top:12px;font-size:14px;color:var(--text-muted);}

/* ---------- steps (compact) ---------- */
.checklist{display:grid;gap:16px;margin-top:8px;}
.checklist li{
  display:flex;gap:14px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(255,255,255,.015);font-size:15.5px;
}
.checklist li i{color:var(--accent);margin-top:5px;font-size:14px;}

/* ---------- faq ---------- */
.faq-section{background:var(--bg-soft);border-top:1px solid var(--line);}
.faq-list{max-width:860px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 0;background:transparent;border:0;color:var(--text);font-size:16.5px;font-weight:700;
  min-height:44px;transition:color .2s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-q .num{font-family:var(--mono);font-size:13px;color:var(--text-muted);flex:0 0 auto;}
.faq-q .plus{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;transition:transform .24s ease,opacity .24s ease;
}
.faq-q .plus::before{top:10px;left:0;width:22px;height:1.6px;}
.faq-q .plus::after{left:10px;top:0;width:1.6px;height:22px;}
.faq-item.is-open .faq-q .plus::after{transform:rotate(90deg);opacity:0;}
.faq-item.is-open .faq-q{color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 0 24px 44px;font-size:15.5px;color:var(--text-body);max-width:760px;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:#0C0E11;border-top:1px solid var(--line);
  padding:96px 0;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:min(760px,90%);height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,227,155,.85),transparent);
}
.cta-band::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,227,155,.16),transparent 68%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:680px;}
.cta-inner h2{font-size:clamp(26px,3vw,38px);margin-bottom:16px;}
.cta-inner p{font-size:16px;color:var(--text-body);margin-bottom:28px;}

/* ---------- footer ---------- */
.site-footer{background:#08090B;border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{row-gap:44px;}
.footer-brand{margin-bottom:18px;}
.footer-desc{font-size:14.5px;color:var(--text-muted);max-width:340px;line-height:1.85;}
.footer-title{
  font-size:14px;font-weight:700;letter-spacing:.14em;color:var(--text);
  margin-bottom:18px;text-transform:uppercase;
}
.footer-links{display:grid;gap:11px;}
.footer-links li,.footer-links a{font-size:14.5px;color:var(--text-muted);line-height:1.7;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-muted);
}
.footer-bottom p{margin:0;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s ease,transform .48s ease;}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  :root{--sp-section:96px;}
  .primary-nav ul{gap:22px;}
  .primary-nav a{font-size:14px;}
  .section-head h2{font-size:32px;}
}
@media screen and (max-width:991px){
  :root{--sp-section:80px;}
  .primary-nav{display:none;}
  .header-actions .btn-primary{display:none;}
  .nav-burger{display:block;}
  .hero-grid{padding:56px 0 64px;}
  .hero-copy h1{font-size:clamp(30px,5vw,44px);}
  .hero-figure{margin-top:36px;}
  .stagger-grid{grid-template-columns:1fr;gap:32px;padding-bottom:24px;}
  .stagger-card:nth-child(even){margin-top:0;}
  .stagger-media img{height:210px;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:32px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .stat-item{padding:0 20px;}
  .cta-band{padding:72px 0;}
  .footer-bottom{flex-direction:column;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:64px 0;}
  .section-sm{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .section-head h2{font-size:26px;}
  .hero-lead{font-size:15.5px;}
  .hero-cta .btn{width:100%;}
  .stagger-body{padding:22px 20px 24px;}
  .stagger-body h3{font-size:19px;}
  .stat-num{font-size:30px;}
  .faq-a-inner{padding-left:0;}
  .faq-q{font-size:15.5px;gap:12px;}
  .cta-inner h2{font-size:24px;}
  .site-footer{padding-top:56px;}
}
@media screen and (max-width:519px){
  .stat-row{grid-template-columns:1fr;}
  .stat-item{border-left:0;padding:0;border-top:1px solid var(--line);padding-top:20px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .tag{font-size:12px;}
  .hero-badge{right:10px;bottom:10px;font-size:11px;}
}

/* roulang page: category3 */
:root{
  --bg:#0A0B0D;
  --bg-panel:#121418;
  --bg-card:#1A1D22;
  --bg-deep:#08090B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F2F4F3;
  --text-body:#A9B0B4;
  --text-dim:#6D757A;
  --neon:#22E39B;
  --neon-soft:rgba(34,227,155,.18);
  --amber:#FFB347;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --container:1200px;
  --gutter:24px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:92px;font-size:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-body);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  padding-top:72px;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--text);text-decoration:none;transition:color .2s ease,border-color .2s ease,box-shadow .2s ease;}
a:hover{color:var(--neon);}
button{font-family:inherit;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4,h5,h6{
  color:var(--text);
  margin:0;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.24;
  font-family:var(--font-sans);
}
h1{font-size:clamp(32px,4.4vw,58px);line-height:1.12;font-weight:900;}
h2{font-size:clamp(24px,2.7vw,38px);}
h3{font-size:20px;line-height:1.45;}
h4{font-size:16px;}
ul,ol{margin:0 0 1.1em;padding-left:1.2em;}
li{line-height:1.8;}
::selection{background:rgba(34,227,155,.28);color:#fff;}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}

.section{padding:112px 0;}
.section.panel{background:var(--bg-panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.section-head{max-width:720px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--neon);
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--neon);
  box-shadow:0 0 10px rgba(34,227,155,.6);
}
.section-title{position:relative;display:inline-block;padding-bottom:16px;}
.section-title::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:100%;
  background:linear-gradient(90deg,var(--neon),rgba(34,227,155,0));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .6s cubic-bezier(.2,.8,.2,1);
}
.section-title.is-in::after{transform:scaleX(1);}
.section-sub{margin-top:18px;font-size:16px;color:var(--text-body);max-width:640px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{
  background:var(--neon);
  color:#06120D;
  border-color:var(--neon);
}
.btn-primary:hover{
  background:#3DF0AD;
  color:#06120D;
  box-shadow:0 0 20px rgba(34,227,155,.28);
}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:rgba(255,255,255,.22);
}
.btn-ghost:hover{
  color:#fff;
  border-color:var(--neon);
  box-shadow:0 0 20px rgba(34,227,155,.16);
}
.btn:active{transform:translateY(1px);}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  font-size:14px;
  font-weight:700;
  color:var(--neon);
  border-bottom:1px solid rgba(34,227,155,.35);
  padding-bottom:2px;
}
.link-arrow .arrow{transition:transform .22s ease;}
.link-arrow:hover{color:#5BF6BE;border-bottom-color:var(--neon);}
.link-arrow:hover .arrow{transform:translateX(4px);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  letter-spacing:.06em;
  border:1px solid rgba(255,179,71,.4);
  color:var(--amber);
  background:rgba(255,179,71,.08);
}
.badge-neon{
  border-color:rgba(34,227,155,.4);
  color:var(--neon);
  background:rgba(34,227,155,.08);
}

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:200;
  background:rgba(10,11,13,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:background-color .25s ease;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(34,227,155,.7),rgba(34,227,155,.14) 45%,rgba(255,255,255,.04));
}
.site-header.is-scrolled{background:rgba(8,9,11,.97);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:60px;}

.brand{display:inline-flex;flex-direction:column;line-height:1;text-decoration:none;}
.brand-mark{font-size:19px;font-weight:900;color:var(--text);letter-spacing:.04em;}
.brand-sub{font-size:10px;letter-spacing:.4em;color:var(--neon);margin-top:5px;}
.brand:hover .brand-mark{color:#fff;}

.primary-nav ul{
  display:flex;
  align-items:center;
  gap:28px;
  list-style:none;
  margin:0;
  padding:0;
}
.primary-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  font-size:15px;
  font-weight:500;
  color:var(--text-body);
}
.primary-nav a::after{
  content:"";
  position:absolute;
  left:0;bottom:5px;
  height:2px;width:0;
  background:var(--neon);
  box-shadow:0 0 10px rgba(34,227,155,.6);
  transition:width .25s ease;
}
.primary-nav a:hover{color:var(--text);}
.primary-nav a:hover::after{width:60%;}
.primary-nav a.is-active{color:var(--neon);}
.primary-nav a.is-active::after{width:60%;}

.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:6px;
  cursor:pointer;
  transition:border-color .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);}
.nav-toggle:hover{border-color:var(--neon);}

/* ---------- Mobile drawer ---------- */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:400;
  background:var(--bg);
  display:flex;
  flex-direction:column;
  padding:20px 24px 32px;
  transform:translateX(100%);
  visibility:hidden;
  overflow-y:auto;
  transition:transform .3s ease,visibility .3s ease;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);
  color:var(--text);
  font-size:22px;
  line-height:1;
  cursor:pointer;
}
.drawer-close:hover{border-color:var(--neon);color:var(--neon);}
.drawer-nav{display:flex;flex-direction:column;padding:16px 0;flex:1;}
.drawer-nav a{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:56px;
  padding:10px 0;
  font-size:19px;
  font-weight:700;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a .idx{font-family:var(--font-mono);font-size:12px;color:var(--text-dim);font-weight:500;}
.drawer-nav a.is-active{color:var(--neon);}
.drawer-cta{width:100%;margin-top:12px;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-dim);
  margin-bottom:24px;
}
.breadcrumb a{color:var(--text-dim);}
.breadcrumb a:hover{color:var(--neon);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text-body);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.2;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.72),rgba(10,11,13,.94) 70%,var(--bg));
  z-index:0;
}
.page-hero .container{position:relative;z-index:1;}
.page-hero h1{margin-bottom:22px;}
.hero-lead{
  font-size:17px;
  line-height:1.85;
  color:var(--text-body);
  max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{
  margin:0;
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.hero-figure img{
  width:100%;
  height:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:0;
  filter:brightness(.86) saturate(.95);
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(34,227,155,.07),rgba(10,11,13,.35));
  pointer-events:none;
}
.hero-figure .fig-tag{
  position:absolute;
  right:14px;bottom:14px;
  z-index:2;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  padding:6px 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(34,227,155,.45);
  color:var(--neon);
  background:rgba(10,11,13,.72);
}

/* ---------- Stat bar ---------- */
.statbar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  margin-top:48px;
}
.stat{padding:22px 24px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat-num{
  font-family:var(--font-mono);
  font-size:24px;
  font-weight:700;
  color:var(--text);
  letter-spacing:-.01em;
}
.stat-num em{color:var(--neon);font-style:normal;}
.stat-label{font-size:13px;color:var(--text-dim);margin-top:6px;}

/* ---------- Compare rows ---------- */
.compare-list{border-top:1px solid var(--line);}
.compare-row{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:56px;
  padding:36px 0;
  border-bottom:1px solid var(--line);
  transition:border-color .25s ease,background-color .25s ease;
}
.compare-row:hover{border-bottom-color:rgba(34,227,155,.35);}
.compare-q{display:flex;gap:16px;align-items:flex-start;}
.compare-index{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--neon);
  padding-top:7px;
  flex:0 0 auto;
}
.compare-q h3{font-size:20px;font-weight:800;line-height:1.5;color:var(--text);}
.compare-a p{font-size:16px;line-height:1.85;color:var(--text-body);margin-bottom:10px;}
.compare-a p:last-of-type{margin-bottom:0;}
.compare-a .link-arrow{margin-top:8px;}

/* ---------- Spotlight ---------- */
.spotlight-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.spot-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.spot-card:hover{
  border-color:rgba(34,227,155,.4);
  box-shadow:0 0 20px rgba(34,227,155,.14);
}
.spot-media{overflow:hidden;aspect-ratio:16/9;}
.spot-media img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  filter:brightness(.8) saturate(.95);
  transition:transform .4s ease;
}
.spot-card:hover .spot-media img{transform:scale(1.03);}
.spot-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.spot-body h3{font-size:20px;}
.spot-body p{font-size:15px;color:var(--text-body);margin:0;}
.spot-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--text-dim);
  letter-spacing:.04em;
}
.spot-meta span{
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
}
.spot-body .link-arrow{margin-top:auto;align-self:flex-start;}

/* ---------- Note strip ---------- */
.note-strip{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  padding:22px 26px;
  border:1px solid var(--line);
  border-left:2px solid var(--neon);
  border-radius:var(--radius-card);
  background:var(--bg-panel);
  margin-top:32px;
}
.note-strip .note-key{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--neon);
  flex:0 0 auto;
}
.note-strip p{margin:0;font-size:15px;color:var(--text-body);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:64px;
  padding:20px 0;
  background:none;
  border:0;
  text-align:left;
  color:var(--text);
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--neon);}
.faq-q .idx{font-family:var(--font-mono);font-size:13px;color:var(--text-dim);flex:0 0 auto;}
.faq-q .sign{position:relative;width:16px;height:16px;flex:0 0 16px;margin-left:auto;}
.faq-q .sign::before,
.faq-q .sign::after{
  content:"";
  position:absolute;
  background:var(--neon);
  transition:transform .25s ease,opacity .25s ease;
}
.faq-q .sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-q .sign::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .sign::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 0 24px 35px;font-size:16px;line-height:1.85;color:var(--text-body);}
.faq-a-inner p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  padding:88px 0;
  text-align:center;
  background:var(--bg-panel);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:min(720px,80%);
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,227,155,.7),transparent);
}
.cta-band h2{margin-bottom:18px;}
.cta-band p{font-size:16px;color:var(--text-body);max-width:600px;margin:0 auto 32px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:72px 0 32px;
  color:var(--text-dim);
}
.footer-grid{row-gap:40px;}
.footer-brand{margin-bottom:16px;}
.footer-brand .brand-mark{font-size:22px;}
.footer-brand .brand-sub{font-size:11px;letter-spacing:.42em;color:var(--neon);margin-top:6px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-dim);margin:0;max-width:330px;}
.footer-title{
  font-size:13px;
  letter-spacing:.16em;
  color:var(--text);
  margin-bottom:16px;
  font-weight:700;
}
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
  line-height:1.7;
}
.footer-links a{color:var(--text-dim);}
.footer-links a:hover{color:var(--neon);}
.footer-bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-dim);
}
.footer-bottom p{margin:0;}

/* ---------- Reveal ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .48s ease,transform .48s ease;}
.js .reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media screen and (max-width:1199px){
  .section{padding:96px 0;}
  .compare-row{gap:40px;}
}

@media screen and (max-width:991px){
  body{padding-top:64px;}
  .header-inner{height:64px;}
  .primary-nav{display:none;}
  .header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:80px 0;}
  .page-hero{padding:40px 0 52px;}
  .hero-figure{margin-top:32px;}
  .statbar{grid-template-columns:repeat(2,1fr);}
  .stat{border-right:1px solid var(--line);}
  .stat:nth-child(2n){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
  .compare-row{grid-template-columns:1fr;gap:16px;padding:30px 0;}
  .spotlight-grid{grid-template-columns:1fr;}
  .section-head{margin-bottom:36px;}
}

@media screen and (max-width:767px){
  :root{--gutter:20px;}
  body{font-size:16px;}
  h1{font-size:clamp(28px,7vw,34px);}
  h2{font-size:clamp(22px,5.6vw,26px);}
  .section{padding:56px 0;}
  .page-hero{padding:32px 0 40px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .compare-q h3{font-size:18px;}
  .faq-q{font-size:16px;gap:12px;}
  .faq-a-inner{padding-left:0;}
  .cta-band{padding:56px 0;}
  .cta-band .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
  .spot-body{padding:22px;}
  .note-strip{padding:18px 20px;}
}

@media screen and (max-width:519px){
  .statbar{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .js .reveal{opacity:1;transform:none;}
  .section-title::after{transform:scaleX(1);}
}

/* roulang page: category4 */
:root{
  --bg:#0A0B0D;
  --panel:#121418;
  --card:#1A1D22;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --text:#F2F4F3;
  --body:#A9B0B4;
  --muted:#6D757A;
  --mint:#22E39B;
  --mint-soft:rgba(34,227,155,.18);
  --amber:#FFB347;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--body);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--mint);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:#5cf3bd;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.02em;line-height:1.22;}
button{font-family:inherit;}
input,textarea{font-family:inherit;}
::selection{background:rgba(34,227,155,.28);color:#fff;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;
  cursor:pointer;text-align:center;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--mint);color:#07130E;border-color:var(--mint);}
.btn-primary:hover,.btn-primary:focus{background:#3ef0ae;border-color:#3ef0ae;color:#07130E;box-shadow:0 0 22px rgba(34,227,155,.35);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;border-color:var(--mint);box-shadow:0 0 20px rgba(34,227,155,.18);}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(10,11,13,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:background-color .22s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(34,227,155,.6),rgba(34,227,155,.14) 34%,rgba(255,255,255,.06) 68%,rgba(255,255,255,0) 100%);
}
.header-inner{
  display:flex;align-items:center;gap:36px;
  height:72px;
  transition:height .22s ease;
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;flex-direction:column;line-height:1;flex:0 0 auto;}
.brand-mark{font-size:19px;font-weight:900;letter-spacing:-.02em;color:var(--text);transition:color .2s ease;}
.brand-sub{font-size:10px;letter-spacing:.34em;color:var(--mint);margin-top:6px;font-weight:600;}
.brand:hover .brand-mark{color:var(--mint);}
.primary-nav{margin-left:auto;}
.primary-nav ul{display:flex;align-items:center;gap:26px;}
.primary-nav a{
  position:relative;display:inline-block;padding:8px 0;
  font-size:15px;color:var(--body);
}
.primary-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--mint);box-shadow:0 0 12px rgba(34,227,155,.6);
  transition:width .22s ease;
}
.primary-nav a:hover{color:var(--text);}
.primary-nav a:hover::after{width:60%;}
.primary-nav a.is-active{color:var(--mint);}
.primary-nav a.is-active::after{width:60%;}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;
  background:transparent;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:50%;width:18px;height:2px;background:var(--text);
  transform:translateX(-50%);border-radius:2px;transition:background-color .2s ease;
}
.nav-toggle span:nth-child(1){top:17px;}
.nav-toggle span:nth-child(2){top:25px;}
.nav-toggle:hover span{background:var(--mint);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:#0A0B0D;
  display:flex;flex-direction:column;
  transform:translateY(-102%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);
  visibility:hidden;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);visibility:visible;}
.drawer-top{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:18px;padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--line-strong);
  position:relative;cursor:pointer;
}
.drawer-close::before,.drawer-close::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.drawer-close::before{transform:translate(-50%,-50%) rotate(45deg);}
.drawer-close::after{transform:translate(-50%,-50%) rotate(-45deg);}
.drawer-nav{padding-top:18px;padding-bottom:18px;flex:1 1 auto;}
.drawer-nav a{
  display:flex;align-items:center;gap:18px;
  padding:18px 0;
  font-size:20px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a .dn{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--muted);font-weight:400;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--mint);}
.drawer-nav a.is-active .dn{color:var(--mint);}
.drawer-foot{padding-top:8px;padding-bottom:32px;}

/* ---------- 通用板块 ---------- */
.section{padding:112px 0;position:relative;}
.section-tight{padding:0 0 112px;}
.eyebrow{
  display:inline-flex;align-items:center;
  padding:6px 15px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,179,71,.35);
  background:rgba(255,179,71,.07);
  color:var(--amber);
  font-size:13px;font-weight:600;letter-spacing:.06em;
}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head h2{margin-top:20px;font-size:clamp(26px,3.2vw,38px);font-weight:800;}
.rule{
  display:block;width:64px;height:2px;margin-top:20px;
  background:linear-gradient(90deg,var(--mint),rgba(34,227,155,0));
  transform-origin:left center;
  animation:ruleIn .8s cubic-bezier(.2,.7,.3,1) both;
}
@keyframes ruleIn{from{transform:scaleX(0);}to{transform:scaleX(1);}}
.section-desc{margin-top:20px;font-size:16px;color:var(--body);max-width:62ch;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 88px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(10,11,13,.78),rgba(10,11,13,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 4px);
}
.page-hero .container{position:relative;z-index:1;}
.hero-copy h1{
  margin-top:22px;
  font-size:clamp(32px,4.8vw,60px);
  font-weight:900;
  line-height:1.1;
  letter-spacing:-.02em;
}
.hero-copy h1 .h1-line{display:block;}
.hero-copy h1 .h1-accent{color:var(--mint);}
.hero-lead{
  margin-top:24px;
  font-size:17px;
  line-height:1.8;
  color:var(--body);
  max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:34px;
  font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--body);}
.hero-figure{
  position:relative;margin:0;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;filter:brightness(.86) saturate(.95);}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,13,.1),rgba(10,11,13,.62));
  pointer-events:none;
}
.fig-badge{
  position:absolute;right:16px;bottom:16px;z-index:2;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(10,11,13,.72);
  border:1px solid rgba(34,227,155,.45);
  color:var(--mint);font-size:12px;font-weight:600;letter-spacing:.06em;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:44px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(34,227,155,.9),rgba(34,227,155,.28) 62%,rgba(34,227,155,0));
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-41px;top:26px;
  width:12px;height:12px;border-radius:50%;
  background:var(--bg);
  border:2px solid var(--mint);
  box-shadow:0 0 14px rgba(34,227,155,.5);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--shadow);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{
  border-color:rgba(34,227,155,.4);
  box-shadow:0 8px 24px rgba(0,0,0,.35),0 0 20px rgba(34,227,155,.18);
}
.tl-index{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;letter-spacing:.18em;
  color:var(--amber);font-weight:500;
}
.tl-card h3{margin:10px 0 12px;font-size:20px;font-weight:800;}
.tl-card p{font-size:16px;line-height:1.8;color:var(--body);max-width:64ch;}
.tl-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:16px;padding:9px 18px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text);
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.tl-link:hover{color:#fff;border-color:var(--mint);box-shadow:0 0 18px rgba(34,227,155,.2);}
.tl-link .arrow{transition:transform .2s ease;}
.tl-link:hover .arrow{transform:translateX(4px);}

/* ---------- 数据条 ---------- */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:38px 8px;
  box-shadow:var(--shadow);
}
.stat{padding:0 26px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;}
.stat-num{
  display:block;
  font-family:var(--mono);
  font-size:clamp(24px,2.9vw,40px);
  font-weight:700;
  color:var(--mint);
  letter-spacing:-.02em;
  line-height:1.15;
}
.stat-label{
  display:block;margin-top:10px;
  font-size:14px;color:var(--muted);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-accordion{background:transparent;border:0;margin:0;}
.faq-accordion .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-accordion .accordion-title{
  display:flex;align-items:center;gap:16px;
  padding:24px 0;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:17px;font-weight:700;line-height:1.5;
  transition:color .2s ease;
}
.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus{background:transparent;color:var(--mint);}
.faq-num{
  flex:0 0 auto;
  font-family:var(--mono);
  font-size:13px;font-weight:500;
  color:var(--muted);letter-spacing:.1em;
}
.faq-q{flex:1 1 auto;}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--mint);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-accordion .accordion-item.is-active .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-accordion .accordion-content{
  display:none;
  padding:0 0 26px 0;
  background:transparent;
  border:0;
  color:var(--body);
  font-size:16px;line-height:1.85;
  animation:fadeIn .3s ease both;
}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.faq-accordion .accordion-content p{margin-bottom:.8em;}
.faq-accordion .accordion-content a{color:var(--mint);border-bottom:1px solid rgba(34,227,155,.4);}

/* ---------- 尾部行动区 ---------- */
.cta-section{padding:0 0 112px;}
.cta-panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:56px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(34,227,155,0),rgba(34,227,155,.7),rgba(34,227,155,0));
}
.cta-panel h2{font-size:clamp(24px,3vw,34px);font-weight:900;}
.cta-panel .cta-desc{margin-top:18px;font-size:16px;color:var(--body);max-width:40ch;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--body);
}
.cta-points li::before{
  content:"";flex:0 0 7px;width:7px;height:7px;margin-top:9px;
  border-radius:2px;background:var(--mint);box-shadow:0 0 10px rgba(34,227,155,.6);
}
.ask-form{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
}
.field{margin-bottom:18px;}
.field label{
  display:block;margin-bottom:8px;
  font-size:14px;font-weight:600;color:var(--text);
}
.field input,.field textarea{
  display:block;width:100%;
  padding:13px 16px;
  background:#101215;
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-btn);
  color:var(--text);
  font-size:15px;line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{resize:vertical;min-height:96px;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--mint);
  background:#0D0F12;
  box-shadow:0 0 0 3px rgba(34,227,155,.14);
}
.form-note{
  margin-top:16px;
  font-size:13px;line-height:1.7;color:var(--muted);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#08090B;
  border-top:1px solid var(--line);
  padding:72px 0 32px;
}
.footer-grid{gap:0;}
.footer-brand{margin-bottom:20px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--muted);max-width:36ch;}
.footer-title{
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--text);
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links li{font-size:14px;color:var(--muted);line-height:1.7;}
.footer-links a{color:var(--muted);}
.footer-links a:hover{color:var(--mint);}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.footer-bottom p{margin:0;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s ease,transform .48s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .primary-nav ul{gap:20px;}
  .primary-nav a{font-size:14px;}
}
@media (max-width:1023px){
  .section{padding:80px 0;}
  .section-tight{padding:0 0 80px;}
  .cta-section{padding:0 0 80px;}
  .page-hero{padding:130px 0 72px;}
  .cta-panel{padding:40px;}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr));padding:30px 6px;}
  .stat{padding:14px 24px;border-left:0;}
  .stat:nth-child(odd){border-right:1px solid var(--line);}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--line);padding-top:24px;}
}
@media (max-width:991px){
  .primary-nav{display:none;}
  .header-actions .btn{display:none;}
  .nav-toggle{display:inline-block;}
  .header-inner{height:64px;gap:16px;}
  .site-header.is-scrolled .header-inner{height:56px;}
  .hero-copy{margin-bottom:44px;}
  .hero-figure{aspect-ratio:3/2;}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .section-tight{padding:0 0 56px;}
  .cta-section{padding:0 0 56px;}
  .page-hero{padding:112px 0 56px;}
  .hero-copy h1{font-size:32px;}
  .hero-lead{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .section-head{margin-bottom:36px;}
  .section-head h2{font-size:24px;}
  .timeline{padding-left:32px;}
  .timeline::before{left:6px;}
  .tl-item::before{left:-30px;width:10px;height:10px;top:24px;}
  .tl-card{padding:22px 20px;}
  .tl-card h3{font-size:18px;}
  .stats-band{grid-template-columns:1fr;padding:10px 0;}
  .stat{padding:20px 22px;border-left:0;border-right:0;}
  .stat:nth-child(odd){border-right:0;}
  .stat + .stat{border-top:1px solid var(--line);}
  .stat:nth-child(3),.stat:nth-child(4){padding-top:20px;}
  .faq-accordion .accordion-title{font-size:16px;padding:20px 0;gap:12px;}
  .faq-accordion .accordion-content{padding-bottom:20px;font-size:15px;}
  .cta-panel{padding:28px 20px;}
  .ask-form{padding:20px;margin-top:28px;}
  .footer-bottom{flex-direction:column;}
  .site-footer{padding:56px 0 28px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  .rule{transform:scaleX(1);}
}