/* roulang page: index */
:root{
  --bg-base:#0A0E0C;
  --bg-1:#101713;
  --bg-2:#16201B;
  --brand:#B7FF2E;
  --brand-deep:#7BD10B;
  --accent:#FF6B2C;
  --accent-2:#6E5BFF;
  --text:#EAF2E7;
  --text-mute:#93A396;
  --text-dim:#6B7A70;
  --line:rgba(183,255,46,.14);
  --hair:rgba(255,255,255,.06);
  --r-card:14px;
  --r-kv:20px;
  --sh-card:0 12px 40px rgba(0,0,0,.45);
  --t-fast:180ms;
  --t-mid:240ms;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  background-color:var(--bg-base);
  background-image:
    radial-gradient(1100px 520px at 16% -12%, rgba(183,255,46,.08), transparent 62%),
    linear-gradient(rgba(183,255,46,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(183,255,46,.03) 1px, transparent 1px);
  background-size:auto, 24px 24px, 24px 24px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(183,255,46,.28);}

::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0A0E0C;}
::-webkit-scrollbar-thumb{background:rgba(183,255,46,.35);border-radius:999px;border:2px solid #0A0E0C;}
::-webkit-scrollbar-thumb:hover{background:rgba(183,255,46,.55);}

.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:68px;
  background:rgba(10,14,12,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:box-shadow var(--t-mid) ease-out;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--accent) 46%,transparent 88%);
  opacity:.7;
}
.site-header.is-scrolled{box-shadow:0 8px 28px rgba(0,0,0,.55);}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(183,255,46,.22),rgba(110,91,255,.18));
  border:1px solid rgba(183,255,46,.35);
  box-shadow:0 0 18px rgba(183,255,46,.18);
}
.brand-text{
  font-size:19px;font-weight:800;line-height:1;white-space:nowrap;
  background:linear-gradient(92deg,var(--brand),#F2FFE0 74%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-latin{letter-spacing:.04em;font-weight:900;}

.nav-desktop{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 13px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--text-mute);
  transition:color var(--t-fast) ease-out,background-color var(--t-fast) ease-out;
}
.nav-link:hover{color:var(--text);background:rgba(183,255,46,.07);}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(183,255,46,.45);}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.75);
}

.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;white-space:nowrap;
  transition:transform var(--t-fast) ease-out,box-shadow var(--t-mid) ease-out,background-color var(--t-fast) ease-out,color var(--t-fast) ease-out;
}
.btn-primary{background:var(--brand);color:#0A0E0C;box-shadow:0 0 24px rgba(183,255,46,.35);}
.btn-primary:hover{transform:translateY(-2px);background:#C8FF52;box-shadow:0 0 34px rgba(183,255,46,.5);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(183,255,46,.4);}
.btn-ghost:hover{background:rgba(183,255,46,.12);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}

.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--hair);background:var(--bg-1);
  align-items:center;justify-content:center;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}

/* ============ Drawer ============ */
.drawer{
  position:fixed;inset:0;z-index:80;
  visibility:hidden;opacity:0;
  transition:opacity var(--t-mid) ease-out,visibility var(--t-mid) ease-out;
}
.drawer.is-open{visibility:visible;opacity:1;}
.drawer-mask{position:absolute;inset:0;background:rgba(0,0,0,.6);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:22px 18px;display:flex;flex-direction:column;gap:4px;
  transform:translateX(100%);
  transition:transform var(--t-mid) ease-out;
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--hair);display:grid;place-items:center;color:var(--text-mute);font-size:18px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 12px;border-radius:12px;
  font-weight:600;color:var(--text);
  border-bottom:1px solid var(--hair);
}
.drawer-link:last-of-type{border-bottom:0;}
.drawer-link::after{content:"›";color:var(--text-dim);font-size:20px;line-height:1;}
.drawer-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(183,255,46,.4);}
.drawer-cta{margin-top:18px;}

/* ============ Sections ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.sec-title{
  position:relative;padding-bottom:14px;
  font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;letter-spacing:0;
  margin:0;
}
.sec-title::after{
  content:"";position:absolute;left:0;bottom:0;width:48px;height:4px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 14px rgba(183,255,46,.55);
}
.sec-title.is-center::after{left:50%;transform:translateX(-50%);}
.sec-lead{margin:18px 0 0;font-size:16px;line-height:1.85;color:var(--text-mute);max-width:40em;}
.sec-lead.is-center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ Hero ============ */
.hero{padding-top:152px;padding-bottom:96px;}
.hero-title{
  margin:22px 0 0;
  font-size:clamp(34px,5.2vw,60px);
  font-weight:900;line-height:1.18;letter-spacing:0;
}
.hero-title .hl{
  background:linear-gradient(94deg,var(--brand),#E9FFC4 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin:20px 0 0;font-size:17px;line-height:1.85;color:var(--text-mute);max-width:36em;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{margin-top:40px;display:grid;gap:14px;grid-template-columns:repeat(3,minmax(0,1fr));}
.stat{
  border:1px solid var(--hair);border-radius:12px;
  background:rgba(16,23,19,.72);
  padding:12px 14px;
}
.stat-k{display:block;font-size:12px;letter-spacing:.06em;color:var(--text-dim);}
.stat-v{display:block;margin-top:4px;font-size:15px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.hero-visual{
  position:relative;border-radius:var(--r-kv);overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid rgba(183,255,46,.28);
  box-shadow:0 0 42px rgba(183,255,46,.14),0 20px 60px rgba(0,0,0,.6);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,14,12,.86),rgba(10,14,12,.05) 58%);
}

/* ============ Badges / Tags ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;font-size:12px;font-weight:700;letter-spacing:.02em;
  white-space:nowrap;
}
.badge-brand{color:var(--brand);border:1px solid rgba(183,255,46,.45);background:rgba(183,255,46,.08);}
.badge-accent{color:var(--accent);border:1px solid rgba(255,107,44,.45);background:rgba(255,107,44,.08);}
.badge-violet{color:#B9AEFF;border:1px solid rgba(110,91,255,.5);background:rgba(110,91,255,.1);}

/* ============ Zigzag ============ */
.zig-num{
  font-size:clamp(40px,5vw,62px);font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(183,255,46,.42);
  flex-shrink:0;font-variant-numeric:tabular-nums;
}
.zig-num.is-accent{-webkit-text-stroke:1px rgba(255,107,44,.5);}
.zig-num.is-violet{-webkit-text-stroke:1px rgba(110,91,255,.55);}
.zig-img{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid var(--hair);
  box-shadow:0 12px 40px rgba(0,0,0,.45);
}
.zig-img img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform var(--t-mid) ease-out;}
.zig-img:hover img{transform:scale(1.04);}
.zig-title{margin:0;font-size:20px;font-weight:700;line-height:1.45;}
.zig-text{margin:12px 0 0;font-size:15px;line-height:1.85;color:var(--text-mute);}

.link-cta{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;font-size:14px;font-weight:700;color:var(--brand);
}
.link-cta .arrow{display:inline-block;transition:transform var(--t-fast) ease-out;}
.link-cta:hover .arrow{transform:translateX(4px);}

/* ============ Reward cards ============ */
.reward-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--bg-1);border:1px solid var(--hair);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform var(--t-mid) ease-out,border-color var(--t-mid) ease-out;
}
.reward-card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);}
.reward-card.is-cut{clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);}
.reward-media{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-2);}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-mid) ease-out;}
.reward-card:hover .reward-media img{transform:scale(1.04);}
.reward-media .badge{position:absolute;left:16px;top:16px;}
.reward-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.reward-name{margin:0;font-size:19px;font-weight:700;line-height:1.45;}
.reward-desc{margin:0;font-size:14px;line-height:1.8;color:var(--text-mute);}

/* ============ Stepper ============ */
.stepper{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
.step{position:relative;display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;}
.step::before{
  content:"";position:absolute;top:9px;left:50%;right:-50%;height:2px;
  background:rgba(183,255,46,.26);
}
.step:last-child::before{display:none;}
.step-dot{
  position:relative;z-index:1;width:20px;height:20px;border-radius:50%;
  background:var(--bg-2);border:2px solid rgba(183,255,46,.38);
}
.step.is-active .step-dot{
  background:var(--brand);border-color:var(--brand);
  box-shadow:0 0 0 6px rgba(183,255,46,.14),0 0 18px rgba(183,255,46,.6);
  animation:pulseDot 1.8s ease-in-out infinite;
}
@keyframes pulseDot{
  0%,100%{box-shadow:0 0 0 6px rgba(183,255,46,.14),0 0 18px rgba(183,255,46,.55);}
  50%{box-shadow:0 0 0 10px rgba(183,255,46,.06),0 0 26px rgba(183,255,46,.75);}
}
.step-label{font-size:14px;color:var(--text-mute);font-weight:600;}
.step.is-active .step-label{color:var(--brand);}

.progress-wrap{margin-top:44px;}
.progress-track{
  position:relative;height:8px;border-radius:999px;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--hair);
}
.progress-fill{
  height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transition:width 900ms ease-out;
}
.progress-meta{margin-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.progress-meta span{font-size:13px;color:var(--text-dim);}
.progress-val{font-size:15px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;}

/* ============ Post cards ============ */
.card{
  background:var(--bg-1);border:1px solid var(--hair);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  transition:transform var(--t-mid) ease-out,border-color var(--t-mid) ease-out;
  overflow:hidden;
}
.card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);}
.card-img{overflow:hidden;background:var(--bg-2);flex-shrink:0;}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-mid) ease-out;}
.card:hover .card-img img{transform:scale(1.04);}
.post-card--lead .card-img{aspect-ratio:16/10;}
.post-card--lead .card-img img{height:100%;}
.post-card .card-img{aspect-ratio:16/9;}
.meta-row{
  margin-top:auto;padding-top:12px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid var(--hair);
  font-size:13px;color:var(--text-dim);
}
.meta-row time{font-variant-numeric:tabular-nums;}
.meta-row .link-cta{margin-top:0;}

.empty-state{
  border:1px dashed rgba(183,255,46,.32);
  border-radius:var(--r-card);
  background:rgba(16,23,19,.6);
  padding:56px 24px;text-align:center;
  color:var(--text-mute);font-size:15px;
}

/* ============ FAQ ============ */
.faq-item{
  background:var(--bg-1);border:1px solid var(--hair);
  border-radius:12px;margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:18px 54px 18px 22px;
  font-size:17px;font-weight:700;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
  box-shadow:0 0 10px rgba(183,255,46,.5);
}
.faq-item summary::after{
  content:"";position:absolute;right:24px;top:50%;
  width:11px;height:11px;margin-top:-8px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  transition:transform var(--t-mid) ease-out;
}
.faq-item[open] summary::after{transform:rotate(-135deg);}
.faq-answer{padding:0 24px 20px 24px;font-size:15px;line-height:1.8;color:var(--text-mute);margin:0;}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-kv);
  border:1px solid rgba(183,255,46,.22);
  background:
    radial-gradient(780px 340px at 82% 8%, rgba(183,255,46,.16), transparent 62%),
    linear-gradient(150deg,#0D1310,#0A0E0C 68%);
  padding:64px 44px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(183,255,46,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(183,255,46,.05) 1px,transparent 1px);
  background-size:28px 28px;
  mask-image:linear-gradient(120deg,rgba(0,0,0,.9),transparent 70%);
  -webkit-mask-image:linear-gradient(120deg,rgba(0,0,0,.9),transparent 70%);
  pointer-events:none;
}
.cta-band > *{position:relative;}
.cta-title{margin:0;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;}
.cta-note{margin:18px 0 0;font-size:15px;color:var(--text-mute);}

/* ============ Footer ============ */
.site-footer{
  margin-top:0;
  background:#070A08;
  position:relative;
  padding:68px 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--accent) 48%,transparent 92%);
  opacity:.75;
}
.footer-grid{display:grid;gap:40px;grid-template-columns:1.6fr 1fr 1fr 1.2fr;}
.footer-title{font-size:14px;font-weight:800;letter-spacing:.05em;color:var(--text);margin:0 0 16px;}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14px;color:var(--text-mute);transition:color var(--t-fast) ease-out;}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-desc{margin:16px 0 0;font-size:13.5px;line-height:1.8;color:var(--text-dim);max-width:30em;}
.footer-bottom{
  margin-top:52px;padding:20px 0;
  border-top:1px solid rgba(255,255,255,.06);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-dim);
}
.footer-bottom a{color:var(--text-mute);}
.footer-bottom a:hover{color:var(--brand);}
.footer-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--brand);margin-right:8px;vertical-align:middle;}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .menu-btn{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .hero{padding-top:112px;padding-bottom:64px;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .step-label{font-size:12px;}
  .cta-band{padding:44px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:520px){
  .shell{padding:0 20px;}
  .brand-text{font-size:17px;}
  .btn{padding:0 20px;font-size:14px;}
  .hero-title{font-size:32px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-base:#0A0E0C;
  --bg-1:#101713;
  --bg-2:#16201B;
  --brand:#B7FF2E;
  --brand-deep:#7BD10B;
  --accent:#FF6B2C;
  --accent-2:#6E5BFF;
  --text:#EAF2E7;
  --text-mute:#93A396;
  --text-dim:#6B7A70;
  --line:rgba(183,255,46,0.14);
  --card-line:rgba(255,255,255,0.06);
  --radius-card:14px;
  --radius-kv:20px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(183,255,46,.35);
  --t-fast:180ms ease-out;
  --t-base:240ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  background-color:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  background-image:
    linear-gradient(rgba(183,255,46,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(183,255,46,.03) 1px,transparent 1px),
    radial-gradient(680px 340px at 76% -80px,rgba(183,255,46,.08),transparent 72%);
  background-size:24px 24px,24px 24px,100% 100%;
  background-repeat:repeat,repeat,no-repeat;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t-fast)}
a:hover{color:var(--brand)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(183,255,46,.28);color:#0A0E0C}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0A0E0C}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--brand),var(--brand-deep));border-radius:999px;border:2px solid #0A0E0C}
::-webkit-scrollbar-thumb:hover{background:var(--brand)}

.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,14,12,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--accent) 55%,transparent);
  opacity:.75;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(0,0,0,.55)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(183,255,46,.18),rgba(110,91,255,.14));
  border:1px solid rgba(183,255,46,.35);
}
.brand-text{
  font-size:19px;font-weight:800;letter-spacing:.01em;
  background:linear-gradient(92deg,var(--brand) 0%,#EAF2E7 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;
}
.brand-latin{letter-spacing:.04em;font-weight:900;font-size:17px}
.nav-desktop{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:16px;font-weight:600;color:var(--text-mute);border-radius:10px;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.03)}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(183,255,46,.45)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.7);
}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--card-line);
  background:var(--bg-1);align-items:center;justify-content:center;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--brand);position:relative;border-radius:2px}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);border-radius:2px;
  transition:transform var(--t-fast);
}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
.menu-btn[aria-expanded="true"] span{background:transparent}
.menu-btn[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.nav-drawer{
  position:fixed;inset:68px 0 0 0;z-index:55;
  background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity var(--t-base),visibility var(--t-base);
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  background:var(--bg-1);border-bottom:1px solid var(--line);
  padding:12px 24px 24px;transform:translateY(-10px);transition:transform var(--t-base);
  max-height:100%;overflow-y:auto;
}
.nav-drawer.is-open .drawer-panel{transform:translateY(0)}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;height:52px;
  border-bottom:1px solid var(--card-line);color:var(--text-mute);font-weight:600;font-size:16px;
}
.drawer-link::after{content:"→";color:var(--brand);opacity:.7}
.drawer-link.is-active{color:var(--brand)}
.drawer-cta{width:100%;justify-content:center;margin-top:18px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;position:relative;overflow:hidden;
  transition:transform var(--t-fast),box-shadow var(--t-base),background var(--t-base),color var(--t-base),border-color var(--t-base);
}
.btn-sm{min-height:40px;padding:10px 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#0A0E0C;box-shadow:var(--shadow-glow)}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:left 520ms ease-out;
}
.btn-primary:hover{background:#C8FF52;transform:translateY(-2px)}
.btn-primary:hover::after{left:120%}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(183,255,46,.4);color:var(--brand)}
.btn-ghost:hover{background:rgba(183,255,46,.12);color:var(--brand);transform:translateY(-2px)}
.link-cta{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px}
.link-cta span{transition:transform var(--t-fast)}
.link-cta:hover span{transform:translateX(4px)}

/* ---------- Article hero ---------- */
.article-hero{padding:36px 0 8px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-dim);margin-bottom:20px;
}
.breadcrumb a{color:var(--text-mute)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(183,255,46,.45)}
.breadcrumb .now{color:var(--text-mute);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-tag{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:6px;
  font-size:13px;font-weight:700;letter-spacing:.02em;
  color:var(--brand);background:rgba(183,255,46,.10);border:1px solid rgba(183,255,46,.35);
}
.article-title{
  margin:16px 0 0;font-size:clamp(26px,4vw,38px);font-weight:800;line-height:1.3;letter-spacing:0;
  max-width:900px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;
  font-size:13px;color:var(--text-dim);font-variant-numeric:tabular-nums;
}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--text-dim);display:inline-block}
.hero-cover{
  margin-top:28px;border-radius:var(--radius-kv);overflow:hidden;position:relative;
  border:1px solid rgba(183,255,46,.22);box-shadow:0 0 40px rgba(183,255,46,.10),var(--shadow-card);
  aspect-ratio:16/7;background:var(--bg-2);
}
.hero-cover img{width:100%;height:100%;object-fit:cover}
.hero-cover::after{
  content:"";position:absolute;inset:auto 0 0 0;height:45%;
  background:linear-gradient(180deg,transparent,rgba(10,14,12,.85));
}
.hero-cover figcaption{
  position:absolute;left:20px;bottom:16px;z-index:2;font-size:13px;color:var(--text-mute);
}

/* ---------- Layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;
  padding:56px 0 88px;align-items:start;
}
.content-card{
  background:var(--bg-1);border:1px solid var(--card-line);border-radius:var(--radius-kv);
  padding:38px 40px;box-shadow:var(--shadow-card);
}

/* ---------- Article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:40em}
.article-body > * + *{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{
  font-size:clamp(21px,2.4vw,26px);font-weight:800;line-height:1.4;color:var(--text);
  margin:44px 0 16px;padding-bottom:10px;position:relative;
}
.article-body h2::after{
  content:"";position:absolute;left:0;bottom:0;width:48px;height:3px;border-radius:3px;
  background:var(--brand);box-shadow:0 0 12px rgba(183,255,46,.5);
}
.article-body h3{font-size:19px;font-weight:700;line-height:1.5;margin:30px 0 12px;color:var(--text)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(183,255,46,.4)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body ul,.article-body ol{margin:0;display:flex;flex-direction:column;gap:10px}
.article-body li{position:relative;padding-left:22px;color:var(--text-mute);line-height:1.85}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--brand);transform:rotate(45deg);
}
.article-body ol{counter-reset:olnum}
.article-body ol > li{counter-increment:olnum}
.article-body ol > li::before{
  content:counter(olnum,decimal-leading-zero);position:absolute;left:0;top:0;
  font-size:13px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  border-left:3px solid var(--brand);background:var(--bg-1);border-radius:0 12px 12px 0;
  padding:16px 22px;color:var(--text-mute);
}
.article-body img{border-radius:12px;margin:0 auto;border:1px solid var(--card-line)}
.article-body figure{margin:0}
.article-body figcaption{font-size:13px;color:var(--text-dim);text-align:center;margin-top:10px}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:14px;
  background:var(--bg-2);border:1px solid var(--card-line);border-radius:6px;padding:2px 6px;color:var(--brand);
}
.article-body pre{
  background:var(--bg-2);border:1px solid var(--card-line);border-radius:12px;padding:16px 18px;overflow-x:auto;
}
.article-body pre code{background:none;border:0;padding:0;color:var(--text-mute)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--card-line)}
.article-body th{color:var(--brand);background:var(--bg-2);font-weight:700}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.02)}
.article-body strong{color:#FFFFFF}

.empty-state{
  border:1px dashed rgba(183,255,46,.35);border-radius:var(--radius-kv);
  padding:48px 24px;text-align:center;background:rgba(183,255,46,.03);
}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:10px}
.empty-state p{color:var(--text-mute);margin-bottom:22px}

/* ---------- Sidebar ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-1);border:1px solid var(--card-line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-title{
  font-size:15px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:8px;
  margin-bottom:14px;color:var(--text);
}
.side-title::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.6)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 10px;border-left:2px solid var(--line);border-radius:0 8px 8px 0;
  font-size:14px;color:var(--text-mute);line-height:1.6;
}
.toc-list a:hover{color:var(--brand);background:rgba(183,255,46,.06);border-left-color:var(--brand)}
.toc-empty{font-size:14px;color:var(--text-dim);line-height:1.7}
.side-nav-list{display:flex;flex-direction:column;gap:8px}
.side-nav-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:12px;background:var(--bg-2);border:1px solid var(--card-line);
  font-size:14px;font-weight:600;color:var(--text-mute);
}
.side-nav-list a::after{content:"→";color:var(--brand);opacity:.65;transition:transform var(--t-fast)}
.side-nav-list a:hover{color:var(--text);border-color:rgba(183,255,46,.4);transform:translateX(2px)}
.side-nav-list a:hover::after{transform:translateX(4px)}
.side-note{font-size:13px;color:var(--text-dim);line-height:1.75;margin-top:12px}

/* ---------- Related ---------- */
.section{padding:0 0 88px}
.section-head{margin-bottom:26px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;line-height:1.3}
.section-head h2::after{
  content:"";display:block;width:48px;height:4px;border-radius:4px;margin-top:8px;
  background:var(--brand);box-shadow:0 0 12px rgba(183,255,46,.45);
}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{
  background:var(--bg-1);border:1px solid var(--card-line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-card);
  transition:transform var(--t-base),border-color var(--t-base),box-shadow var(--t-base);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);box-shadow:0 18px 44px rgba(0,0,0,.55)}
.post-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease-out}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-badge{
  position:absolute;left:12px;top:12px;height:26px;padding:0 10px;border-radius:6px;display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;color:#0A0E0C;background:var(--brand);
}
.post-badge.alt{background:var(--accent);color:#16181A}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:18px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{
  font-size:14px;color:var(--text-mute);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-dim);font-variant-numeric:tabular-nums}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border-radius:var(--radius-kv);overflow:hidden;
  border:1px solid rgba(183,255,46,.22);
  padding:56px 48px;background:var(--bg-1);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(183,255,46,.14),rgba(255,107,44,.10) 55%,rgba(110,91,255,.12));
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-inner h2{font-size:clamp(23px,2.8vw,30px);font-weight:800;line-height:1.35}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--text-mute);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Footer ---------- */
.site-footer{
  background:#070A08;border-top:1px solid transparent;position:relative;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--accent) 55%,transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 40px;
}
.footer-desc{margin-top:16px;font-size:14px;color:var(--text-mute);line-height:1.8;max-width:340px}
.footer-title{font-size:15px;font-weight:800;color:var(--text);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:var(--text-mute)}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-dim);font-variant-numeric:tabular-nums;
}
.footer-bottom a{color:var(--text-mute)}
.footer-bottom a:hover{color:var(--brand)}
.footer-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:8px;
  background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.8);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding:44px 0 72px}
  .side-col{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;padding:52px 0 32px}
}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .menu-btn{display:inline-flex}
}
@media (max-width:768px){
  .shell{padding:0 20px}
  .header-inner{height:60px}
  .nav-drawer{inset:60px 0 0 0}
  .content-card{padding:26px 22px;border-radius:var(--radius-card)}
  .article-body{font-size:16px;max-width:100%}
  .hero-cover{aspect-ratio:16/10}
  .section{padding:0 0 64px}
  .cta-band{padding:36px 24px}
  .article-hero{padding:24px 0 4px}
}
@media (max-width:640px){
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .brand-text{font-size:17px}
  .brand-latin{font-size:15px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important}
  .btn-primary::after{display:none}
}

/* roulang page: category1 */
:root{
  --bg-base:#0A0E0C;
  --bg-1:#101713;
  --bg-2:#16201B;
  --brand:#B7FF2E;
  --brand-deep:#7BD10B;
  --accent:#FF6B2C;
  --accent-2:#6E5BFF;
  --text:#EAF2E7;
  --text-mute:#93A396;
  --text-dim:#6B7A70;
  --line:rgba(183,255,46,0.14);
  --card-line:rgba(255,255,255,0.06);
  --radius-badge:6px;
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 12px 40px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(183,255,46,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;font-family:var(--font-cn);}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(720px 380px at 50% -120px, rgba(183,255,46,.08), transparent 70%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto, 24px 24px, 24px 24px;
  background-repeat:no-repeat, repeat, repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(183,255,46,.28);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0B100D;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--brand),var(--brand-deep));border-radius:999px;border:2px solid #0B100D;}

.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,14,12,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.05);transition:box-shadow .24s var(--ease);}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(0,0,0,.5);}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,var(--brand),var(--accent) 55%,transparent);opacity:.75;pointer-events:none;}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(183,255,46,.18),rgba(110,91,255,.14));border:1px solid var(--line);}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.01em;background:linear-gradient(90deg,var(--brand),#EAF2E7 78%);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;}
.brand-latin{letter-spacing:.04em;font-weight:900;}

.nav-desktop{display:flex;align-items:center;gap:26px;}
.nav-link{position:relative;font-size:16px;font-weight:600;color:var(--text-mute);padding:6px 0;transition:color .18s var(--ease);white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);width:0;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.6);transition:width .24s var(--ease);}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:56%;}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(183,255,46,.45);}
.nav-link.is-active::after{width:100%;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 26px;border-radius:999px;border:1px solid transparent;font-size:15px;font-weight:700;cursor:pointer;position:relative;overflow:hidden;transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);}
.btn-primary{background:var(--brand);color:#0A0E0C;box-shadow:var(--glow);}
.btn-primary::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 32%,rgba(255,255,255,.5) 50%,transparent 68%);transform:translateX(-130%);transition:transform .55s var(--ease);}
.btn-primary:hover{background:#C8FF5A;transform:translateY(-2px);}
.btn-primary:hover::after{transform:translateX(130%);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:rgba(183,255,46,.4);color:var(--brand);}
.btn-ghost:hover{background:rgba(183,255,46,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}

.menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--card-line);background:var(--bg-1);cursor:pointer;position:relative;}
.menu-btn span,.menu-btn span::before,.menu-btn span::after{position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--text);transition:.2s var(--ease);}
.menu-btn span{top:50%;margin-top:-1px;}
.menu-btn span::before{content:"";top:-6px;}
.menu-btn span::after{content:"";top:6px;}

.mobile-drawer{position:fixed;inset:0;z-index:80;display:none;}
.mobile-drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(0,0,0,.6);}
.drawer-panel{position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;background:var(--bg-1);border-left:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--card-line);background:var(--bg-2);color:var(--text);font-size:18px;cursor:pointer;}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 14px;border-radius:12px;color:var(--text-mute);font-size:16px;font-weight:600;transition:.18s var(--ease);}
.drawer-link:hover{background:rgba(255,255,255,.04);color:var(--text);}
.drawer-link.is-active{color:var(--brand);background:rgba(183,255,46,.08);}
.drawer-link .arrow{color:var(--text-dim);font-size:14px;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:78px 0 70px;background-image:linear-gradient(180deg,rgba(10,14,12,.68) 0%,rgba(10,14,12,.9) 55%,rgba(10,14,12,.99) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;}
.hero::before{content:"";position:absolute;top:-180px;left:50%;transform:translateX(-50%);width:820px;height:460px;background:radial-gradient(closest-side,rgba(183,255,46,.16),transparent);pointer-events:none;}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:18px;}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.7);}
.hero-title{font-size:clamp(34px,5.2vw,56px);font-weight:900;line-height:1.18;letter-spacing:0;margin-bottom:18px;}
.hero-title em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-mute);max-width:36em;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.chip{display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:12px;background:rgba(16,23,19,.78);border:1px solid var(--card-line);min-width:150px;}
.chip-label{font-size:12px;color:var(--text-dim);letter-spacing:.04em;}
.chip-value{font-size:14px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(183,255,46,.28);box-shadow:0 20px 60px rgba(0,0,0,.55),0 0 34px rgba(183,255,46,.14);aspect-ratio:4/3;background:var(--bg-2);}
.hero-visual img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.hero-visual:hover img{transform:scale(1.04);}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 42%,rgba(10,14,12,.86));}
.hero-visual .visual-tag{position:absolute;left:18px;bottom:16px;z-index:2;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-mute);}
.visual-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px rgba(255,107,44,.9);animation:pulse 1.8s infinite var(--ease);}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-title{position:relative;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;padding-bottom:14px;margin-bottom:16px;}
.section-title::after{content:"";position:absolute;left:0;bottom:0;width:48px;height:4px;border-radius:2px;background:var(--brand);box-shadow:0 0 14px rgba(183,255,46,.55);}
.section-desc{color:var(--text-mute);font-size:16px;max-width:44em;}

/* ---------- TOC + Groups ---------- */
.layout-split{display:grid;grid-template-columns:250px 1fr;gap:56px;align-items:start;}
.toc{position:sticky;top:96px;}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--text-dim);margin-bottom:16px;text-transform:uppercase;}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line);}
.toc-link{position:relative;display:block;padding:10px 14px;font-size:15px;font-weight:600;color:var(--text-mute);border-radius:0 10px 10px 0;transition:.18s var(--ease);}
.toc-link::before{content:"";position:absolute;left:-2px;top:12px;bottom:12px;width:2px;background:transparent;transition:.18s var(--ease);}
.toc-link:hover{color:var(--text);background:rgba(255,255,255,.03);}
.toc-link.is-active{color:var(--brand);background:rgba(183,255,46,.07);}
.toc-link.is-active::before{background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.8);}
.toc-note{margin-top:22px;padding:16px;border-radius:12px;background:var(--bg-1);border:1px solid var(--card-line);font-size:13px;line-height:1.8;color:var(--text-dim);}

.group{padding-bottom:56px;margin-bottom:56px;border-bottom:1px solid rgba(255,255,255,.05);scroll-margin-top:90px;}
.group:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.group-head{display:flex;align-items:baseline;gap:16px;margin-bottom:18px;}
.group-num{font-size:34px;font-weight:900;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(183,255,46,.4);font-variant-numeric:tabular-nums;}
.group-title{font-size:clamp(21px,2.4vw,27px);font-weight:800;line-height:1.35;}
.group p.lead{color:var(--text-mute);margin-bottom:22px;max-width:40em;}

.row-list{display:flex;flex-direction:column;gap:12px;}
.row-item{display:grid;grid-template-columns:96px 1fr auto;gap:18px;align-items:center;padding:18px 20px;border-radius:12px;background:var(--bg-1);border:1px solid var(--card-line);transition:.2s var(--ease);}
.row-item:hover{transform:translateY(-2px);border-color:rgba(183,255,46,.4);box-shadow:var(--shadow);}
.row-time{font-size:15px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;}
.row-main{font-size:15px;color:var(--text);font-weight:600;}
.row-meta{font-size:13px;color:var(--text-dim);display:block;font-weight:500;margin-top:2px;font-variant-numeric:tabular-nums;}

.badge{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--radius-badge);font-size:12px;font-weight:700;letter-spacing:.02em;}
.badge-brand{color:var(--brand);border:1px solid rgba(183,255,46,.42);background:rgba(183,255,46,.08);}
.badge-lava{color:var(--accent);border:1px solid rgba(255,107,44,.45);background:rgba(255,107,44,.1);}
.badge-dim{color:var(--text-mute);border:1px solid var(--card-line);background:rgba(255,255,255,.03);}

.board{padding:26px;border-radius:var(--radius);background:linear-gradient(160deg,var(--bg-2),var(--bg-1));border:1px solid rgba(183,255,46,.2);box-shadow:var(--shadow);}
.board-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px;}
.board-league{font-size:13px;color:var(--text-dim);}
.board-score{display:flex;align-items:center;gap:20px;font-size:clamp(30px,4vw,42px);font-weight:900;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.board-score .sep{color:var(--text-dim);font-size:24px;}
.board-side{font-size:15px;font-weight:700;color:var(--text-mute);}
.board-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px;}
.stat-box{padding:14px;border-radius:12px;background:rgba(10,14,12,.6);border:1px solid var(--card-line);}
.stat-label{font-size:12px;color:var(--text-dim);}
.stat-value{font-size:19px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;margin-top:2px;}
.progress-wrap{margin-top:24px;}
.progress-head{display:flex;justify-content:space-between;font-size:13px;color:var(--text-dim);margin-bottom:8px;}
.progress-track{height:8px;border-radius:999px;background:var(--bg-2);overflow:hidden;border:1px solid var(--card-line);}
.progress-fill{height:100%;width:63%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:0 0 16px rgba(183,255,46,.35);}

.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.card{border-radius:var(--radius);background:var(--bg-1);border:1px solid var(--card-line);overflow:hidden;transition:.22s var(--ease);display:flex;flex-direction:column;}
.card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);box-shadow:var(--shadow);}
.card-media{aspect-ratio:16/10;background:var(--bg-2);overflow:hidden;position:relative;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;left:12px;top:12px;background:rgba(10,14,12,.82);}
.card-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card-title{font-size:18px;font-weight:700;line-height:1.45;}
.card-text{font-size:14px;color:var(--text-mute);line-height:1.8;}
.link-cta{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand);margin-top:auto;transition:.18s var(--ease);}
.link-cta .arrow{transition:transform .18s var(--ease);}
.link-cta:hover .arrow{transform:translateX(4px);}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;}
.stat-card{padding:22px;border-radius:var(--radius);background:var(--bg-1);border:1px solid var(--card-line);transition:.2s var(--ease);}
.stat-card:hover{transform:translateY(-3px);border-color:rgba(183,255,46,.36);}
.stat-card .num{font-size:15px;font-weight:800;color:var(--brand);letter-spacing:.02em;margin-bottom:10px;font-variant-numeric:tabular-nums;}
.stat-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.stat-card p{font-size:14px;color:var(--text-mute);}

.dot-list{display:flex;flex-direction:column;gap:12px;}
.dot-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text-mute);}
.dot-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--brand);box-shadow:0 0 8px rgba(183,255,46,.7);}
.dot-list li strong{color:var(--text);font-weight:700;}

/* ---------- Stepper ---------- */
.stepper{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:16px;}
.stepper::before{content:"";position:absolute;left:6%;right:6%;top:11px;height:2px;background:linear-gradient(90deg,rgba(183,255,46,.5),rgba(183,255,46,.16));}
.step{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;}
.step-dot{width:24px;height:24px;border-radius:50%;background:var(--bg-2);border:2px solid rgba(183,255,46,.4);display:grid;place-items:center;font-size:12px;font-weight:800;color:var(--brand);position:relative;z-index:1;}
.step.is-current .step-dot{background:var(--brand);color:#0A0E0C;border-color:var(--brand);box-shadow:0 0 0 6px rgba(183,255,46,.14);animation:pulse 1.8s infinite var(--ease);}
.step-label{font-size:14px;font-weight:700;color:var(--text);}
.step-text{font-size:13px;color:var(--text-dim);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{background:var(--bg-1);border:1px solid var(--card-line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s var(--ease);}
.faq-item.is-open{border-color:rgba(183,255,46,.36);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:0;color:var(--text);font-size:17px;font-weight:700;text-align:left;cursor:pointer;line-height:1.6;}
.faq-q .q-text{position:relative;padding-left:14px;}
.faq-q .q-text::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:var(--brand);box-shadow:0 0 8px rgba(183,255,46,.6);}
.faq-icon{flex-shrink:0;width:22px;height:22px;color:var(--brand);transition:transform .24s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding:0 20px 20px 34px;font-size:15px;line-height:1.85;color:var(--text-mute);}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid rgba(183,255,46,.24);padding:56px 44px;background-image:linear-gradient(120deg,rgba(10,14,12,.9),rgba(16,23,19,.86)),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;box-shadow:var(--shadow);}
.cta-band::before{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;background:radial-gradient(closest-side,rgba(255,107,44,.2),transparent);pointer-events:none;}
.cta-inner{position:relative;display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;}
.cta-title{font-size:clamp(24px,3.2vw,34px);font-weight:900;line-height:1.28;margin-bottom:14px;}
.cta-text{color:var(--text-mute);font-size:15px;max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- Footer ---------- */
.site-footer{position:relative;background:#070A08;padding:64px 0 28px;margin-top:88px;}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--brand) 22%,var(--accent) 62%,transparent);opacity:.8;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-mute);max-width:30em;}
.footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14px;color:var(--text-mute);transition:color .18s var(--ease);}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.06);font-size:13px;color:var(--text-dim);}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--brand);}
.footer-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.8);margin-right:8px;vertical-align:middle;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .layout-split{grid-template-columns:1fr;gap:32px;}
  .toc{position:static;border:1px solid var(--card-line);border-radius:var(--radius);padding:18px;background:var(--bg-1);}
  .toc-list{border-left:0;flex-direction:row;flex-wrap:wrap;gap:10px;}
  .toc-link{border:1px solid var(--card-line);border-radius:999px;padding:8px 14px;font-size:14px;}
  .toc-link::before{display:none;}
  .toc-link.is-active{border-color:rgba(183,255,46,.45);}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{max-width:640px;}
  .nav-desktop{display:none;}
  .menu-btn{display:block;}
}
@media (max-width:768px){
  .shell{padding:0 20px;}
  .section{padding:60px 0;}
  .hero{padding:56px 0 52px;}
  .board-stats{grid-template-columns:repeat(2,1fr);}
  .stepper{grid-template-columns:repeat(2,1fr);gap:26px 18px;}
  .stepper::before{display:none;}
  .row-item{grid-template-columns:1fr;gap:8px;}
  .row-time{font-size:14px;}
  .cta-band{padding:38px 24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:52px 0 24px;margin-top:56px;}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr;}
  .hero-chips .chip{flex:1 1 100%;}
  .board{padding:20px;}
  .board-score{gap:12px;}
  .board-side{font-size:14px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-base:#0A0E0C;
  --bg-1:#101713;
  --bg-2:#16201B;
  --brand:#B7FF2E;
  --brand-deep:#7BD10B;
  --accent:#FF6B2C;
  --accent-2:#6E5BFF;
  --text:#EAF2E7;
  --text-mute:#93A396;
  --text-dim:#6B7A70;
  --line:rgba(183,255,46,.14);
  --card-line:rgba(255,255,255,.06);
  --radius:14px;
  --radius-lg:20px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(183,255,46,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(680px 340px at 78% -90px, rgba(183,255,46,.08), transparent 70%),
    linear-gradient(rgba(183,255,46,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(183,255,46,.03) 1px, transparent 1px);
  background-size:auto, 24px 24px, 24px 24px;
  background-repeat:no-repeat, repeat, repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color 180ms ease-out, border-color 180ms ease-out;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
::selection{background:rgba(183,255,46,.28);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-1);}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--brand),var(--brand-deep));border-radius:999px;border:2px solid var(--bg-1);}

.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,14,12,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:box-shadow 240ms ease-out;
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--accent),transparent);
  opacity:.75;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(0,0,0,.5);}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(183,255,46,.16),rgba(110,91,255,.14));
  border:1px solid rgba(183,255,46,.3);
}
.brand-text{
  font-size:19px;font-weight:800;letter-spacing:0;line-height:1.2;
  background:linear-gradient(96deg,var(--brand) 8%,#FFFFFF 92%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  white-space:nowrap;
}
.brand-latin{font-weight:800;letter-spacing:.04em;padding:0 1px;}
.nav-desktop{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;font-size:16px;font-weight:600;color:var(--text-mute);
  padding:6px 0;white-space:nowrap;
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(183,255,46,.45);}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(183,255,46,.65);
}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(183,255,46,.08);border:1px solid rgba(183,255,46,.3);
  align-items:center;justify-content:center;position:relative;
}
.menu-btn span,
.menu-btn span::before,
.menu-btn span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--brand);
  transition:transform 240ms ease-out, opacity 180ms ease-out;
}
.menu-btn span::before{transform:translateY(-6px);}
.menu-btn span::after{transform:translateY(4px);}
.menu-btn[aria-expanded="true"] span{background:transparent;}
.menu-btn[aria-expanded="true"] span::before{transform:rotate(45deg) translateY(0);}
.menu-btn[aria-expanded="true"] span::after{transform:rotate(-45deg) translateY(-2px);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 28px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform 180ms ease-out, background-color 180ms ease-out, box-shadow 240ms ease-out, border-color 180ms ease-out, color 180ms ease-out;
}
.btn-primary{
  position:relative;overflow:hidden;
  background:var(--brand);color:#0A0E0C;box-shadow:var(--shadow-glow);
}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transition:left 480ms ease-out;
}
.btn-primary:hover{transform:translateY(-2px);background:#C6FF52;}
.btn-primary:hover::after{left:130%;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--brand);border-color:rgba(183,255,46,.4);
}
.btn-ghost:hover{background:rgba(183,255,46,.12);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:10px 20px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:700;font-size:14px;
}
.link-arrow::after{content:"→";transition:transform 180ms ease-out;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ---------- Hero ---------- */
.hero{padding:56px 0 40px;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand);
  padding:6px 14px;border-radius:6px;
  border:1px solid rgba(183,255,46,.34);background:rgba(183,255,46,.07);
}
.hero-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.8);}
.page-title{
  font-size:clamp(34px,5.2vw,60px);font-weight:900;line-height:1.18;letter-spacing:0;
  margin:22px 0 18px;max-width:920px;
}
.page-title .hl{
  background:linear-gradient(96deg,var(--brand) 10%,#FFFFFF 90%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{
  font-size:17px;line-height:1.9;color:var(--text-mute);max-width:760px;
}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.chip{
  min-height:40px;padding:9px 20px;border-radius:999px;
  font-size:14px;font-weight:700;color:var(--text-mute);
  background:var(--bg-1);border:1px solid var(--card-line);
  transition:all 180ms ease-out;
}
.chip:hover{color:var(--text);border-color:rgba(183,255,46,.4);transform:translateY(-1px);}
.chip.is-active{
  background:var(--brand);color:#0A0E0C;border-color:var(--brand);
  box-shadow:0 0 18px rgba(183,255,46,.3);
}
.stat-row{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  margin-top:34px;max-width:720px;
}
.stat-item{
  background:var(--bg-1);border:1px solid var(--card-line);border-radius:var(--radius);
  padding:14px 18px;
}
.stat-label{font-size:12px;letter-spacing:.08em;color:var(--text-dim);text-transform:uppercase;}
.stat-value{font-size:20px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;margin-top:2px;}
.stat-value em{font-style:normal;color:var(--brand);}

/* ---------- Section ---------- */
.section{padding:88px 0;}
.section-tight{padding:56px 0 88px;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  position:relative;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;
  padding-bottom:16px;
}
.section-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:48px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.section-head p{margin-top:16px;color:var(--text-mute);font-size:16px;line-height:1.85;}

/* ---------- Card wall ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.play-card{
  display:flex;flex-direction:column;
  background:var(--bg-1);border:1px solid var(--card-line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform 180ms ease-out, border-color 180ms ease-out, box-shadow 240ms ease-out;
}
.play-card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);}
.play-card.is-hidden{display:none;}
.card-media{position:relative;overflow:hidden;background:var(--bg-2);aspect-ratio:16/10;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out;}
.play-card:hover .card-media img{transform:scale(1.04);}
.card-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:6px;
  color:var(--brand);background:rgba(10,14,12,.72);
  border:1px solid rgba(183,255,46,.45);
}
.card-badge.is-lava{color:var(--accent);border-color:rgba(255,107,44,.45);}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px 18px 20px;flex:1;}
.card-body h3{font-size:18px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14.5px;color:var(--text-mute);line-height:1.8;}
.card-foot{margin-top:auto;padding-top:6px;}

/* ---------- Points ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.point-item{
  padding:26px 24px 24px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(22,32,27,.9),rgba(16,23,19,.9));
  border:1px solid var(--card-line);border-left:3px solid var(--brand);
}
.point-item .num{
  font-size:44px;font-weight:900;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(183,255,46,.45);
  font-variant-numeric:tabular-nums;
}
.point-item h3{font-size:19px;font-weight:700;margin:12px 0 10px;}
.point-item p{font-size:15px;color:var(--text-mute);line-height:1.85;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative;margin-top:8px;}
.step{position:relative;padding-top:38px;}
.step::before{
  content:"";position:absolute;top:9px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(183,255,46,.3),rgba(183,255,46,.08));
}
.step:last-child::before{background:linear-gradient(90deg,rgba(183,255,46,.3),transparent);}
.step-dot{
  position:absolute;top:0;left:0;width:20px;height:20px;border-radius:50%;
  background:var(--bg-2);border:2px solid rgba(183,255,46,.45);
}
.step.is-current .step-dot{
  background:var(--brand);border-color:var(--brand);
  box-shadow:0 0 0 0 rgba(183,255,46,.5);
  animation:pulse 1.8s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(183,255,46,.45);}
  70%{box-shadow:0 0 0 12px rgba(183,255,46,0);}
  100%{box-shadow:0 0 0 0 rgba(183,255,46,0);}
}
.step-label{font-size:14px;font-weight:700;color:var(--text);}
.step-desc{font-size:13.5px;color:var(--text-mute);line-height:1.8;margin-top:6px;}
.progress-track{
  margin-top:34px;height:8px;border-radius:999px;background:var(--bg-2);overflow:hidden;
}
.progress-fill{
  height:100%;width:62%;border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.progress-meta{
  display:flex;justify-content:space-between;font-size:13px;color:var(--text-dim);
  margin-top:10px;font-variant-numeric:tabular-nums;
}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.path-list{display:flex;flex-direction:column;gap:16px;margin-top:26px;}
.path-item{
  display:flex;gap:16px;padding:20px;border-radius:var(--radius);
  background:var(--bg-1);border:1px solid var(--card-line);
  transition:border-color 180ms ease-out, transform 180ms ease-out;
}
.path-item:hover{border-color:rgba(183,255,46,.4);transform:translateY(-3px);}
.path-index{
  flex:0 0 34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#0A0E0C;background:var(--brand);
}
.path-item h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.path-item p{font-size:15px;color:var(--text-mute);line-height:1.8;}
.split-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(183,255,46,.28);
  box-shadow:0 0 40px rgba(183,255,46,.12), var(--shadow-card);
  aspect-ratio:4/3;background:var(--bg-2);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:45%;
  background:linear-gradient(180deg,transparent,rgba(10,14,12,.92));
}
.split-media figcaption{
  position:absolute;left:22px;bottom:18px;z-index:2;
  font-size:13.5px;color:var(--text-mute);
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:var(--bg-1);border:1px solid var(--card-line);border-radius:12px;
  overflow:hidden;transition:border-color 180ms ease-out;
}
.faq-item.is-open{border-color:rgba(183,255,46,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 20px;background:transparent;border:0;color:var(--text);
  font-size:17px;font-weight:700;line-height:1.6;
}
.faq-q::before{
  content:"";flex:0 0 3px;align-self:stretch;border-radius:2px;background:var(--brand);
}
.faq-q .icon{
  margin-left:auto;flex:0 0 22px;color:var(--brand);font-size:18px;line-height:1;
  transition:transform 240ms ease-out;
}
.faq-item.is-open .faq-q .icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-item.is-open .faq-a{max-height:520px;}
.faq-a-inner{padding:0 20px 20px 37px;font-size:15px;line-height:1.85;color:var(--text-mute);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(183,255,46,.22);
  background:linear-gradient(120deg,rgba(22,32,27,.96),rgba(10,14,12,.96));
  padding:56px 48px;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(183,255,46,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(183,255,46,.05) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:660px;}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;}
.cta-inner p{margin-top:16px;color:var(--text-mute);font-size:16px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-note{margin-top:18px;font-size:13px;color:var(--text-dim);}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:88px;background:#070A08;
  border-top:1px solid transparent;
  background-image:linear-gradient(#070A08,#070A08),linear-gradient(90deg,rgba(183,255,46,.5),rgba(255,107,44,.4),transparent);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding:56px 0 36px;
}
.footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.85;color:var(--text-mute);max-width:340px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a,.footer-list span{font-size:14.5px;color:var(--text-mute);}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--text-dim);font-variant-numeric:tabular-nums;
}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--brand);}
.footer-dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);
  margin-right:8px;vertical-align:middle;box-shadow:0 0 10px rgba(183,255,46,.8);
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:30px;}
}
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .nav-desktop.is-open{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;left:0;right:0;top:60px;bottom:0;
    background:rgba(10,14,12,.98);border-top:1px solid var(--line);
    padding:14px 20px 40px;overflow-y:auto;z-index:75;
  }
  .nav-desktop.is-open .nav-link{
    font-size:17px;padding:15px 6px;border-bottom:1px solid var(--card-line);
  }
  .nav-desktop.is-open .nav-link.is-active::after{display:none;}
  .header-inner{height:60px;}
  .menu-btn{display:inline-flex;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .point-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:32px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:32px;}
  .section{padding:64px 0;}
  .section-tight{padding:40px 0 64px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:639px){
  .shell{padding:0 20px;}
  .page-title{font-size:clamp(30px,8vw,38px);}
  .stat-row{grid-template-columns:1fr;gap:10px;}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:36px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px;}
  .section{padding:56px 0;}
  .brand-text{font-size:17px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition-duration:1ms !important;}
  html{scroll-behavior:auto;}
  .btn-primary::after{display:none;}
}

/* roulang page: category3 */
:root{
  --bg-base:#0A0E0C;
  --bg-1:#101713;
  --bg-2:#16201B;
  --brand:#B7FF2E;
  --brand-deep:#7BD10B;
  --accent:#FF6B2C;
  --accent-2:#6E5BFF;
  --text:#EAF2E7;
  --text-mute:#93A396;
  --text-dim:#6B7A70;
  --line:rgba(183,255,46,0.14);
  --card-line:rgba(255,255,255,0.06);
  --r-card:14px;
  --r-kv:20px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-base);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(183,255,46,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(183,255,46,.05) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.35;
}
body::after{
  content:"";
  position:fixed;
  top:-260px;
  left:50%;
  width:900px;
  height:520px;
  transform:translateX(-50%);
  z-index:0;
  pointer-events:none;
  background:radial-gradient(circle,rgba(183,255,46,.10) 0%,rgba(183,255,46,0) 68%);
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{list-style:none;padding:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(183,255,46,.28);color:#0A0E0C;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#0A0E0C;}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--brand),var(--brand-deep));border-radius:999px;border:2px solid #0A0E0C;}

.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
@media(max-width:640px){.shell{padding:0 20px;}}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,14,12,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,rgba(183,255,46,.75),rgba(255,107,44,.45),transparent);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(0,0,0,.5);}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
@media(max-width:640px){.header-inner{height:60px;}}

.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;
  background:rgba(183,255,46,.10);
  border:1px solid rgba(183,255,46,.32);
  transition:box-shadow .24s ease-out,transform .18s ease-out;
}
.brand:hover .brand-mark{box-shadow:0 0 18px rgba(183,255,46,.45);transform:translateY(-1px);}
.brand-text{
  font-size:19px;font-weight:800;letter-spacing:.01em;line-height:1.2;
  background:linear-gradient(90deg,#B7FF2E 0%,#EAF2E7 78%);
  -webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;
}
.brand-latin{letter-spacing:.04em;font-weight:800;font-size:17px;}
@media(max-width:520px){.brand-text{font-size:16px;} .brand-latin{font-size:15px;}}

.nav-desktop{display:none;align-items:center;gap:4px;}
@media(min-width:1024px){.nav-desktop{display:flex;}}
.nav-link{
  position:relative;
  padding:10px 13px;
  font-size:15.5px;
  font-weight:600;
  color:var(--text-mute);
  text-decoration:none;
  border-radius:9px;
  transition:color .18s ease-out,background .18s ease-out;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.045);}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(183,255,46,.45);}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.75);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 28px;
  border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;text-decoration:none;
  cursor:pointer;position:relative;overflow:hidden;
  transition:transform .18s ease-out,box-shadow .24s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--brand);color:#0A0E0C;box-shadow:0 0 24px rgba(183,255,46,.35);}
.btn-primary::after{
  content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-20deg);transition:left .55s ease-out;
}
.btn-primary:hover{transform:translateY(-2px);background:#c8ff52;box-shadow:0 0 34px rgba(183,255,46,.5);}
.btn-primary:hover::after{left:130%;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:rgba(183,255,46,.42);color:var(--brand);}
.btn-ghost:hover{background:rgba(183,255,46,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:10px 20px;font-size:14px;}
.link-cta{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14.5px;font-weight:700;text-decoration:none;
  transition:color .18s ease-out;
}
.link-cta span.arrow{transition:transform .18s ease-out;display:inline-block;}
.link-cta:hover span.arrow{transform:translateX(4px);}
.link-cta:hover{color:#d3ff74;}

.menu-btn{
  width:44px;height:44px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--card-line);border-radius:12px;cursor:pointer;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.menu-btn:hover{border-color:rgba(183,255,46,.4);background:rgba(183,255,46,.08);}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);position:relative;border-radius:2px;}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}
@media(min-width:1024px){.menu-btn{display:none;}}

.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;
  transition:opacity .24s ease-out,visibility .24s ease-out;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;}
.mobile-panel{
  position:absolute;top:0;right:0;
  width:min(86vw,360px);height:100%;
  background:var(--bg-1);
  border-left:1px solid var(--line);
  padding:78px 20px 28px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);
  transition:transform .28s ease-out;
  overflow-y:auto;
}
.mobile-drawer.is-open .mobile-panel{transform:translateX(0);}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 14px;border-radius:12px;
  color:var(--text-mute);text-decoration:none;font-size:16px;font-weight:600;
  transition:background .18s ease-out,color .18s ease-out;
}
.mobile-link:hover,.mobile-link.is-active{background:rgba(183,255,46,.1);color:var(--brand);}
.mobile-link .chev{color:var(--text-dim);font-size:14px;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;z-index:1;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(105deg,rgba(10,14,12,.97) 0%,rgba(10,14,12,.88) 46%,rgba(10,14,12,.62) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.page-hero-inner{padding:78px 0 66px;max-width:820px;}
@media(max-width:640px){.page-hero-inner{padding:56px 0 48px;}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);margin-bottom:20px;}
.crumb a{color:var(--text-dim);text-decoration:none;transition:color .18s ease-out;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(183,255,46,.45);}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
  border:1px solid rgba(183,255,46,.3);
  background:rgba(183,255,46,.07);
  color:var(--brand);font-size:13px;font-weight:700;letter-spacing:.02em;
}
.hero-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.9);}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:900;line-height:1.2;letter-spacing:0;
  margin:0 0 18px;
}
.page-hero p.lead{
  font-size:clamp(15.5px,1.4vw,17.5px);
  line-height:1.9;
  color:var(--text-mute);
  max-width:660px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px;}
.hero-tag{
  display:flex;flex-direction:column;gap:2px;
  padding:10px 16px;border-radius:12px;
  background:rgba(16,23,19,.72);
  border:1px solid var(--card-line);
  min-width:132px;
}
.hero-tag .k{font-size:12px;color:var(--text-dim);letter-spacing:.04em;}
.hero-tag .v{font-size:14.5px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}

/* ============ 通用区块 ============ */
.section{padding:92px 0;position:relative;z-index:1;}
@media(max-width:640px){.section{padding:58px 0;}}
.sec-head{max-width:740px;margin-bottom:44px;}
.sec-title{
  position:relative;
  font-size:clamp(24px,3vw,34px);
  font-weight:800;line-height:1.3;
  padding-bottom:16px;
}
.sec-title::after{
  content:"";position:absolute;left:0;bottom:0;width:48px;height:4px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 14px rgba(183,255,46,.5);
}
.sec-desc{margin-top:18px;color:var(--text-mute);font-size:15.5px;line-height:1.9;max-width:680px;}

/* ============ 时间轴 ============ */
.tl-wrap{display:grid;gap:32px;}
@media(min-width:1024px){.tl-wrap{grid-template-columns:288px 1fr;gap:56px;}}
.tl-rail{display:none;}
@media(min-width:1024px){
  .tl-rail{display:block;position:sticky;top:96px;align-self:start;}
}
.tl-rail-item{position:relative;display:flex;gap:14px;padding-bottom:26px;text-decoration:none;}
.tl-rail-item:last-child{padding-bottom:0;}
.tl-rail-item::before{
  content:"";position:absolute;left:13px;top:28px;bottom:0;width:1px;
  background:rgba(183,255,46,.28);
}
.tl-rail-item:last-child::before{display:none;}
.tl-dot{
  width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--bg-2);
  border:1px solid rgba(183,255,46,.4);
  color:var(--brand);font-size:11px;font-weight:800;
  font-variant-numeric:tabular-nums;
  transition:box-shadow .24s ease-out,background .18s ease-out,color .18s ease-out;
}
.tl-rail-label{font-size:14.5px;color:var(--text-mute);font-weight:600;line-height:1.6;padding-top:3px;transition:color .18s ease-out;}
.tl-rail-item:hover .tl-rail-label{color:var(--text);}
.tl-rail-item:hover .tl-dot{border-color:var(--brand);box-shadow:0 0 14px rgba(183,255,46,.4);}
.tl-rail-item.is-current .tl-dot{
  background:var(--brand);color:#0A0E0C;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(183,255,46,.16),0 0 18px rgba(183,255,46,.6);
  animation:pulseDot 1.8s ease-in-out infinite;
}
.tl-rail-item.is-current .tl-rail-label{color:var(--brand);}
@keyframes pulseDot{
  0%,100%{box-shadow:0 0 0 4px rgba(183,255,46,.14),0 0 14px rgba(183,255,46,.45);}
  50%{box-shadow:0 0 0 8px rgba(183,255,46,.05),0 0 26px rgba(183,255,46,.75);}
}

.tl-list{display:grid;gap:20px;}
.tl-entry{
  position:relative;
  padding:26px 26px 26px 30px;
  background:var(--bg-1);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
  scroll-margin-top:96px;
}
.tl-entry::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),rgba(255,107,44,.65));
}
.tl-entry:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);box-shadow:var(--shadow-card);}
.tl-entry-num{
  display:inline-block;
  font-size:13px;font-weight:800;letter-spacing:.12em;
  color:var(--brand);font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.tl-entry h3{font-size:19px;font-weight:700;line-height:1.45;margin-bottom:12px;}
.tl-entry p{color:var(--text-mute);font-size:15px;line-height:1.9;margin-bottom:14px;}
@media(max-width:640px){.tl-entry{padding:22px 20px 22px 24px;}}

/* ============ 图文区块 ============ */
.split{display:grid;gap:32px;align-items:center;}
@media(min-width:900px){.split{grid-template-columns:1fr 1fr;gap:52px;}}
.figure-box{
  position:relative;border-radius:var(--r-kv);overflow:hidden;
  border:1px solid rgba(183,255,46,.22);
  box-shadow:0 0 34px rgba(183,255,46,.10);
  background-color:var(--bg-2);
}
.figure-box img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.figure-box::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,14,12,0) 48%,rgba(10,14,12,.72) 100%);
  pointer-events:none;
}
.figure-cap{
  position:absolute;left:18px;right:18px;bottom:14px;z-index:2;
  font-size:13px;color:var(--text-mute);
}
.point-list{display:grid;gap:16px;margin-top:22px;}
.point-list li{display:flex;gap:12px;font-size:15px;color:var(--text-mute);line-height:1.85;}
.point-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:10px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.55);
}

/* ============ 指标卡片 ============ */
.metric-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media(min-width:640px){.metric-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.metric-grid{grid-template-columns:repeat(4,1fr);}}
.metric-card{
  padding:26px 22px;
  background:linear-gradient(160deg,rgba(22,32,27,.9),rgba(16,23,19,.9));
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);box-shadow:var(--shadow-card);}
.metric-label{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--accent);border:1px solid rgba(255,107,44,.42);
  padding:3px 10px;border-radius:6px;margin-bottom:16px;
}
.metric-card h3{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px;}
.metric-card p{font-size:14.5px;color:var(--text-mute);line-height:1.85;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{background:var(--bg-1);border:1px solid var(--card-line);border-radius:12px;overflow:hidden;transition:border-color .24s ease-out;}
.faq-item:hover{border-color:rgba(183,255,46,.34);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:12px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;
  color:var(--text);font-size:17px;font-weight:700;text-align:left;line-height:1.5;
  transition:color .18s ease-out;
}
.faq-q::before{
  content:"";flex:0 0 3px;width:3px;height:18px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(183,255,46,.5);
}
.faq-q .faq-text{flex:1;}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .24s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-a-inner{padding:0 22px 20px 37px;font-size:15px;line-height:1.85;color:var(--text-mute);}

/* ============ CTA ============ */
.cta-block{
  position:relative;overflow:hidden;
  padding:52px 32px;
  border-radius:var(--r-kv);
  border:1px solid var(--line);
  background-image:
    linear-gradient(120deg,rgba(183,255,46,.10),rgba(255,107,44,.07) 60%,rgba(110,91,255,.07)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  text-align:center;
}
.cta-block h2{font-size:clamp(23px,2.8vw,32px);font-weight:800;line-height:1.35;margin-bottom:16px;}
.cta-block p{color:var(--text-mute);font-size:15.5px;max-width:640px;margin:0 auto 30px;line-height:1.9;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
@media(max-width:640px){.cta-block{padding:40px 22px;}}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  background:#070A08;
  border-top:1px solid rgba(255,255,255,.05);
  margin-top:20px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--accent) 45%,transparent);
}
.footer-grid{
  display:grid;gap:36px;
  padding:60px 0 34px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;}}
.footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px;}
.footer-list{display:grid;gap:10px;}
.footer-list a{color:var(--text-mute);font-size:14px;text-decoration:none;transition:color .18s ease-out;}
.footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-desc{color:var(--text-mute);font-size:14px;line-height:1.8;margin-top:14px;max-width:330px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:18px 0 30px;
  border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--text-dim);
}
.footer-bottom a{color:var(--text-dim);text-decoration:none;}
.footer-bottom a:hover{color:var(--brand);}
.footer-dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 8px rgba(183,255,46,.85);
  margin-right:8px;vertical-align:middle;
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
    --bg-base:#0A0E0C;
    --bg-1:#101713;
    --bg-2:#16201B;
    --brand:#B7FF2E;
    --brand-deep:#7BD10B;
    --accent:#FF6B2C;
    --accent-2:#6E5BFF;
    --text:#EAF2E7;
    --text-mute:#93A396;
    --text-dim:#6B7A70;
    --line:rgba(183,255,46,.14);
    --stroke:rgba(255,255,255,.06);
    --radius-card:14px;
    --radius-kv:20px;
    --shadow-card:0 12px 40px rgba(0,0,0,.45);
    --ease:180ms ease-out;
    --ease-slow:240ms ease-out;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background-color:var(--bg-base);
    background-image:
      radial-gradient(680px 320px at 82% -8%, rgba(183,255,46,.08), transparent 62%),
      linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:auto,24px 24px,24px 24px;
    background-repeat:no-repeat,repeat,repeat;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  input,textarea{font:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}

  .shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
  .brand-latin{letter-spacing:.04em;font-weight:800;}

  /* ---------- 顶栏 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(10,14,12,.92);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    transition:box-shadow var(--ease),border-color var(--ease);
    border-bottom:1px solid transparent;
  }
  .site-header::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
    background:linear-gradient(90deg,rgba(183,255,46,.9),rgba(255,107,44,.75) 42%,rgba(183,255,46,0) 88%);
    pointer-events:none;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px rgba(0,0,0,.55);border-bottom-color:var(--line);}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
    background:linear-gradient(150deg,rgba(183,255,46,.2),rgba(255,107,44,.12));
    border:1px solid rgba(183,255,46,.35);
    box-shadow:0 0 18px rgba(183,255,46,.16);
  }
  .brand-text{
    font-size:19px;font-weight:800;letter-spacing:-.01em;
    background:linear-gradient(92deg,#B7FF2E 0%,#EAF2E7 72%);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .nav-desktop{display:flex;align-items:center;gap:6px;}
  .nav-link{
    position:relative;display:inline-block;
    padding:10px 12px;font-size:16px;font-weight:600;color:var(--text-mute);
    transition:color var(--ease);
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
    background:var(--brand);opacity:0;transform:scaleX(.4);
    transition:opacity var(--ease),transform var(--ease);
    box-shadow:0 0 12px rgba(183,255,46,.7);
  }
  .nav-link:hover{color:var(--text);}
  .nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(183,255,46,.45);}
  .nav-link.is-active::after{opacity:1;transform:scaleX(1);}
  .menu-btn{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid var(--stroke);background:var(--bg-1);
    position:relative;
  }
  .menu-btn span,
  .menu-btn span::before,
  .menu-btn span::after{
    position:absolute;left:50%;width:18px;height:2px;background:var(--text);border-radius:2px;
    transform:translateX(-50%);transition:transform var(--ease),opacity var(--ease);
  }
  .menu-btn span{top:21px;}
  .menu-btn span::before{content:"";top:-6px;left:0;transform:none;}
  .menu-btn span::after{content:"";top:6px;left:0;transform:none;}
  .menu-btn[aria-expanded="true"] span{background:transparent;}
  .menu-btn[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
  .menu-btn[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

  .mobile-nav{
    position:fixed;top:60px;left:0;right:0;z-index:55;
    background:rgba(7,10,8,.98);border-bottom:1px solid var(--line);
    backdrop-filter:blur(14px);
    transform:translateY(-120%);opacity:0;pointer-events:none;
    transition:transform var(--ease-slow),opacity var(--ease-slow);
    padding:12px 20px 20px;
  }
  .mobile-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .mobile-nav a{
    display:flex;align-items:center;justify-content:space-between;
    height:52px;font-size:16px;font-weight:600;color:var(--text-mute);
    border-bottom:1px solid rgba(255,255,255,.05);
  }
  .mobile-nav a.is-active{color:var(--brand);}
  .mobile-nav a::after{content:"›";color:var(--text-dim);font-size:20px;line-height:1;}
  .mobile-nav .btn{width:100%;margin-top:16px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:14px 28px;border-radius:999px;
    font-size:15px;font-weight:700;letter-spacing:.01em;
    transition:transform var(--ease),background var(--ease),box-shadow var(--ease),color var(--ease),border-color var(--ease);
    position:relative;overflow:hidden;
  }
  .btn-sm{min-height:40px;padding:10px 20px;font-size:14px;}
  .btn-primary{background:var(--brand);color:#0A0E0C;box-shadow:0 0 24px rgba(183,255,46,.35);}
  .btn-primary:hover{background:#C9FF55;transform:translateY(-2px);box-shadow:0 0 30px rgba(183,255,46,.5);}
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{
    border:1px solid rgba(183,255,46,.4);color:var(--brand);background:transparent;
  }
  .btn-ghost:hover{background:rgba(183,255,46,.12);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;
  }
  .btn-link .arrow{transition:transform var(--ease);}
  .btn-link:hover .arrow{transform:translateX(4px);}

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}
  .section-head{max-width:760px;margin-bottom:40px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
    color:var(--brand);padding:6px 14px;border-radius:999px;
    border:1px solid rgba(183,255,46,.28);background:rgba(183,255,46,.06);
    margin-bottom:18px;
  }
  .eyebrow span{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(255,107,44,.8);}
  h1{font-size:clamp(34px,5.2vw,60px);font-weight:900;line-height:1.18;letter-spacing:0;}
  h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;position:relative;padding-bottom:14px;}
  h2::after{
    content:"";position:absolute;left:0;bottom:0;width:48px;height:4px;border-radius:2px;
    background:linear-gradient(90deg,var(--brand),var(--accent));
    box-shadow:0 0 14px rgba(183,255,46,.5);
  }
  h3{font-size:19px;font-weight:700;line-height:1.45;}
  .section-sub{color:var(--text-mute);font-size:16px;line-height:1.85;margin-top:16px;}
  .divider{height:1px;background:var(--line);border:0;margin:0;}

  /* ---------- Hero ---------- */
  .hero{padding:72px 0 80px;position:relative;}
  .hero-grid{
    display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
    gap:52px;align-items:center;
  }
  .hero h1{margin-bottom:20px;}
  .hero h1 em{font-style:normal;color:var(--brand);}
  .lede{font-size:17px;line-height:1.9;color:var(--text-mute);max-width:34em;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-stats{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:14px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line);
  }
  .stat{
    background:var(--bg-1);border:1px solid var(--stroke);border-radius:12px;padding:14px 16px;
    transition:border-color var(--ease),transform var(--ease);
  }
  .stat:hover{border-color:rgba(183,255,46,.4);transform:translateY(-3px);}
  .stat-label{font-size:13px;color:var(--text-dim);letter-spacing:.02em;}
  .stat-value{
    font-size:18px;font-weight:800;color:var(--text);margin-top:4px;
    font-variant-numeric:tabular-nums;
  }
  .hero-media{
    position:relative;border-radius:var(--radius-kv);overflow:hidden;
    border:1px solid rgba(183,255,46,.35);
    box-shadow:0 0 40px rgba(183,255,46,.14),var(--shadow-card);
    aspect-ratio:4/3;
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.05);}
  .hero-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(10,14,12,.05) 30%,rgba(10,14,12,.85));
  }
  .hero-media figcaption{
    position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
    font-size:14px;color:var(--text);font-weight:600;letter-spacing:.01em;
  }

  /* ---------- 对比表 ---------- */
  .table-wrap{
    border-radius:var(--radius-card);overflow:hidden;
    border:1px solid var(--stroke);background:var(--bg-1);
    box-shadow:var(--shadow-card);
  }
  table.compare{width:100%;border-collapse:collapse;font-size:15px;}
  table.compare thead th{
    text-align:left;padding:18px 20px;font-size:14px;font-weight:800;letter-spacing:.04em;
    color:var(--brand);background:var(--bg-2);border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  table.compare tbody td{
    padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.05);
    color:var(--text-mute);vertical-align:top;line-height:1.7;
  }
  table.compare tbody tr:nth-child(odd){background:var(--bg-1);}
  table.compare tbody tr:nth-child(even){background:rgba(22,32,27,.5);}
  table.compare tbody tr:hover td{color:var(--text);}
  table.compare tbody tr:last-child td{border-bottom:0;}
  table.compare td:first-child{
    color:var(--text);font-weight:700;font-size:16px;min-width:132px;
  }
  .table-note{margin-top:16px;font-size:13px;color:var(--text-dim);}

  /* ---------- 场景卡片 ---------- */
  .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
  .card{
    background:var(--bg-1);border:1px solid var(--stroke);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-card);
    transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
    display:flex;flex-direction:column;
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);}
  .card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease-slow);}
  .card:hover .card-media img{transform:scale(1.04);}
  .badge{
    position:absolute;left:14px;top:14px;
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:6px;font-size:12px;font-weight:700;letter-spacing:.04em;
    background:rgba(10,14,12,.82);backdrop-filter:blur(6px);
  }
  .badge-brand{color:var(--brand);border:1px solid rgba(183,255,46,.55);}
  .badge-accent{color:var(--accent);border:1px solid rgba(255,107,44,.55);}
  .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-body p{color:var(--text-mute);font-size:15px;line-height:1.8;}
  .card-body .btn-link{margin-top:auto;padding-top:6px;font-size:14px;}

  /* ---------- 奖励预览（非对称） ---------- */
  .reward-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:22px;}
  .reward-col{display:grid;gap:22px;}
  .reward-card{
    position:relative;border-radius:var(--radius-card);overflow:hidden;
    border:1px solid var(--stroke);background:var(--bg-1);box-shadow:var(--shadow-card);
    transition:transform var(--ease),border-color var(--ease);
  }
  .reward-card:hover{transform:translateY(-4px);border-color:rgba(183,255,46,.4);}
  .reward-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.5;}
  .reward-card .reward-inner{
    position:relative;z-index:2;padding:28px;display:flex;flex-direction:column;gap:10px;justify-content:flex-end;
    min-height:200px;background:linear-gradient(180deg,rgba(10,14,12,.15),rgba(10,14,12,.9));
  }
  .reward-card.tall .reward-inner{min-height:420px;}
  .reward-card p{color:var(--text-mute);font-size:15px;line-height:1.8;}

  /* ---------- 流程 ---------- */
  .flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
  .flow::before{
    content:"";position:absolute;left:6%;right:6%;top:15px;height:2px;
    background:linear-gradient(90deg,rgba(183,255,46,.3),rgba(255,107,44,.28),rgba(183,255,46,.08));
  }
  .step{position:relative;padding-top:44px;}
  .step .dot{
    position:absolute;top:6px;left:0;width:20px;height:20px;border-radius:50%;
    background:var(--bg-base);border:2px solid rgba(183,255,46,.5);
  }
  .step.is-current .dot{
    background:var(--brand);border-color:var(--brand);
    box-shadow:0 0 0 6px rgba(183,255,46,.12),0 0 20px rgba(183,255,46,.7);
    animation:pulse 1.8s ease-in-out infinite;
  }
  @keyframes pulse{
    0%,100%{box-shadow:0 0 0 5px rgba(183,255,46,.12),0 0 18px rgba(183,255,46,.6);}
    50%{box-shadow:0 0 0 10px rgba(183,255,46,.06),0 0 26px rgba(183,255,46,.85);}
  }
  .step h3{font-size:17px;margin-bottom:8px;}
  .step p{color:var(--text-mute);font-size:15px;line-height:1.8;}
  .step .step-no{font-size:13px;color:var(--text-dim);font-variant-numeric:tabular-nums;display:block;margin-bottom:6px;}
  .progress-wrap{margin-top:44px;max-width:640px;}
  .progress-head{display:flex;align-items:baseline;justify-content:space-between;font-size:14px;color:var(--text-mute);margin-bottom:10px;}
  .progress-head b{color:var(--brand);font-size:16px;font-variant-numeric:tabular-nums;}
  .progress-track{height:8px;border-radius:999px;background:var(--bg-2);overflow:hidden;border:1px solid var(--stroke);}
  .progress-fill{
    height:100%;width:72%;border-radius:999px;
    background:linear-gradient(90deg,var(--brand),var(--accent));
  }
  .progress-note{margin-top:12px;font-size:13px;color:var(--text-dim);}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:900px;}
  .faq-item{background:var(--bg-1);border:1px solid var(--stroke);border-radius:12px;overflow:hidden;transition:border-color var(--ease);}
  .faq-item.is-open{border-color:rgba(183,255,46,.38);}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:14px;text-align:left;
    padding:18px 20px;font-size:17px;font-weight:700;color:var(--text);
    min-height:44px;
  }
  .faq-q::before{content:"";width:3px;height:20px;border-radius:2px;background:var(--brand);flex-shrink:0;box-shadow:0 0 10px rgba(183,255,46,.6);}
  .faq-q .icon{
    margin-left:auto;color:var(--brand);font-size:20px;line-height:1;transition:transform var(--ease);
  }
  .faq-item.is-open .faq-q .icon{transform:rotate(45deg);}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height var(--ease-slow);
  }
  .faq-a p{padding:0 20px 20px 37px;color:var(--text-mute);font-size:15px;line-height:1.8;}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;border-radius:var(--radius-kv);overflow:hidden;
    border:1px solid rgba(183,255,46,.28);
    background:var(--bg-1);
    padding:64px 48px;
    box-shadow:0 0 60px rgba(183,255,46,.08);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(520px 240px at 88% 10%, rgba(183,255,46,.16), transparent 65%),
      radial-gradient(420px 220px at 4% 100%, rgba(255,107,44,.14), transparent 68%);
    pointer-events:none;
  }
  .cta-inner{position:relative;z-index:2;max-width:720px;}
  .cta-inner h2{padding-bottom:0;}
  .cta-inner h2::after{display:none;}
  .cta-inner p{color:var(--text-mute);margin-top:16px;line-height:1.9;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:#070A08;border-top:1px solid transparent;position:relative;
    padding:64px 0 28px;margin-top:24px;
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
    background:linear-gradient(90deg,rgba(183,255,46,.85),rgba(255,107,44,.65) 46%,rgba(110,91,255,.5) 72%,transparent);
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
  .footer-desc{color:var(--text-mute);font-size:14px;line-height:1.85;margin-top:16px;max-width:34em;}
  .footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
  .footer-list{display:grid;gap:11px;}
  .footer-list a{color:var(--text-mute);font-size:14px;transition:color var(--ease);}
  .footer-list a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.06);
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--text-dim);
  }
  .footer-bottom a{color:var(--text-mute);}
  .footer-bottom a:hover{color:var(--brand);}
  .footer-dot{
    display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand);
    box-shadow:0 0 10px rgba(183,255,46,.8);margin-right:8px;vertical-align:middle;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .nav-desktop{display:none;}
    .menu-btn{display:block;}
    .header-inner{height:60px;}
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .hero-media{order:-1;max-width:620px;}
    .section{padding:72px 0;}
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
    .reward-grid{grid-template-columns:1fr;}
    .reward-card.tall .reward-inner{min-height:280px;}
    .flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 22px;}
    .flow::before{display:none;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:768px){
    .shell{padding:0 20px;}
    .section{padding:56px 0;}
    .hero{padding:48px 0 56px;}
    .hero-stats{grid-template-columns:1fr;gap:10px;}
    .grid-3{grid-template-columns:1fr;}
    .cta-band{padding:40px 24px;}
    .faq-q{font-size:16px;padding:16px;}
    .faq-a p{padding:0 16px 18px 33px;}

    table.compare{display:block;}
    table.compare thead{display:none;}
    table.compare tbody{display:block;padding:6px;}
    table.compare tbody tr{
      display:block;border:1px solid var(--stroke);border-radius:12px;
      background:var(--bg-2)!important;padding:8px 12px;margin-bottom:12px;
    }
    table.compare tbody tr:last-child{margin-bottom:0;}
    table.compare tbody td{
      display:flex;gap:12px;justify-content:space-between;align-items:flex-start;
      border-bottom:1px dashed rgba(255,255,255,.06);padding:11px 0;font-size:14px;
    }
    table.compare tbody td:last-child{border-bottom:0;}
    table.compare tbody td::before{
      content:attr(data-label);flex-shrink:0;width:82px;
      color:var(--text-dim);font-size:13px;font-weight:700;
    }
    table.compare tbody td:first-child{
      color:var(--brand);font-size:16px;font-weight:800;
    }
  }
  @media (max-width:520px){
    .hero-actions .btn{width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;}
    .flow{grid-template-columns:1fr;}
    .brand-text{font-size:17px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}
  }