/* roulang page: index */
:root{
  --ink:#0B0C0E;
  --ink-card:#14161A;
  --ink-footer:#101114;
  --lime:#C7F53F;
  --lime-hover:#D6FF5C;
  --lime-active:#A9D62C;
  --ember:#FF5A2B;
  --paper:#F5F6F2;
  --card:#FFFFFF;
  --line:#E4E6E0;
  --line-dark:rgba(245,246,242,.14);
  --text:#16181C;
  --text-muted:#5C6167;
  --text-dark:#F5F6F2;
  --text-dark-muted:#A9ADB3;
  --radius-card:18px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(11,12,14,.06);
  --shadow-hover:0 17px 40px -18px rgba(11,12,14,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--text);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.tabular{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.section{padding:96px 0}
.sec-dark{background:var(--ink);color:var(--text-dark)}
.sec-dark h2,.sec-dark h3{color:var(--text-dark)}
.grid-mark{flex:none;opacity:.85}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,12,14,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(11,12,14,.96);border-bottom-color:var(--line-dark)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-dark);font-weight:700;font-size:19px;letter-spacing:.01em;flex:none}
.brand-mark{flex:none}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;color:var(--text-dark-muted);font-size:14px;letter-spacing:.04em;
  padding:6px 0;transition:color .2s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--text-dark)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--lime)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.countdown-pill{
  display:flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line-dark);background:rgba(245,246,242,.05);
  color:var(--text-dark-muted);font-size:12.5px;letter-spacing:.04em;white-space:nowrap;
}
.countdown-pill strong{color:var(--text-dark);font-weight:700}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;position:relative}
.pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1px solid var(--lime);opacity:.5;animation:pulse 2s infinite}
@keyframes pulse{0%{transform:scale(.7);opacity:.6}70%{transform:scale(1.3);opacity:0}100%{opacity:0}}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--lime-hover);transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(199,245,63,.45)}
.btn-primary:active{background:var(--lime-active);transform:translateY(0) scale(.985)}
.btn-ghost{border-color:rgba(245,246,242,.28);color:var(--text-dark)}
.btn-ghost:hover{background:rgba(245,246,242,.06)}
.btn-ghost:active{transform:scale(.985)}
.btn-outline{border-color:#D8DAD4;color:var(--text)}
.btn-outline:hover{background:rgba(22,24,28,.05)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.header-cta{height:40px;padding:0 20px;font-size:14px}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line-dark);border-radius:10px;align-items:center;justify-content:center}
.menu-toggle span{display:block;width:16px;height:1.5px;background:var(--text-dark);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--text-dark)}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}
.mobile-drawer{
  display:none;background:rgba(11,12,14,.97);border-top:1px solid var(--line-dark);
  padding:20px 20px 28px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a.drawer-link{
  display:block;color:var(--text-dark);font-size:20px;font-weight:600;padding:16px 0;
  border-bottom:1px solid var(--line-dark);
}
.mobile-drawer a.drawer-link.is-active{color:var(--lime)}
.mobile-drawer .drawer-foot{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.mobile-drawer .drawer-cd{color:var(--text-dark-muted);font-size:13px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:var(--text-dark);min-height:min(760px,88vh);display:flex;align-items:center}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.55}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,12,14,.94) 0%,rgba(11,12,14,.72) 45%,rgba(11,12,14,.28) 100%);
}
.hero-dots{position:absolute;top:72px;right:48px;opacity:.5;pointer-events:none}
.hero-inner{position:relative;padding:112px 0 96px;max-width:720px}
.hero-inner>*{animation:rise .6s var(--ease) both}
.hero-inner>*:nth-child(1){animation-delay:.04s}
.hero-inner>*:nth-child(2){animation-delay:.12s}
.hero-inner>*:nth-child(3){animation-delay:.2s}
.hero-inner>*:nth-child(4){animation-delay:.28s}
.hero-inner>*:nth-child(5){animation-delay:.36s}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;border:1px solid var(--line-dark);color:var(--text-dark-muted);
}
.badge-live{border-color:rgba(199,245,63,.5);color:var(--lime)}
.badge-soon{border-color:rgba(255,90,43,.5);color:#FF8C6A}
.badge-soft{background:rgba(245,246,242,.05)}
.hero h1{
  margin-top:24px;
  font-size:clamp(34px,6vw,64px);
  line-height:1.08;
  font-weight:800;
  letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.85;color:var(--text-dark-muted);max-width:600px}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.hero-cd{
  display:flex;align-items:center;gap:10px;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid var(--line-dark);background:rgba(245,246,242,.04);
}
.hero-cd .unit{font-size:12px;color:var(--text-dark-muted)}
.hero-cd .num{font-size:20px;font-weight:800;color:var(--lime);letter-spacing:.02em}
.stat-bar{margin-top:52px;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-bar li{padding:0 20px;border-left:1px solid var(--line-dark)}
.stat-bar li:first-child{padding-left:0;border-left:0}
.stat-num{font-size:clamp(28px,3.4vw,44px);font-weight:800;line-height:1.2;letter-spacing:-.02em}
.stat-num small{font-size:14px;font-weight:600;color:var(--text-dark-muted);margin-left:4px}
.stat-cap{margin-top:4px;font-size:12.5px;color:var(--text-dark-muted);letter-spacing:.06em}
.hero-aside{
  position:absolute;right:32px;bottom:64px;width:264px;
  background:rgba(20,22,26,.92);border:1px solid var(--line-dark);border-radius:var(--radius-card);
  overflow:hidden;backdrop-filter:blur(8px);
}
.hero-aside img{aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-aside .ha-body{padding:16px 18px 18px}
.hero-aside h3{font-size:15px;font-weight:700;color:var(--text-dark)}
.hero-aside p{font-size:13px;color:var(--text-dark-muted);margin-top:6px;line-height:1.7}
.hero-aside .ha-link{display:inline-block;margin-top:12px;font-size:13px;color:var(--lime)}

/* ---------- section heads ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.14em;
  color:var(--text-muted);text-transform:uppercase;
}
.sec-dark .eyebrow{color:var(--text-dark-muted)}
.sec-head{max-width:760px}
.sec-head h2{margin-top:18px;font-size:clamp(24px,3.4vw,40px);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.sec-head p{margin-top:16px;color:var(--text-muted);font-size:16.5px;line-height:1.85}
.sec-dark .sec-head p{color:var(--text-dark-muted)}

/* ---------- steps ---------- */
.flow{position:relative;margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow::before{content:"";position:absolute;left:14px;right:14px;top:17px;height:1px;background:var(--line)}
.flow-item{position:relative;padding-right:12px}
.flow-idx{
  position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;background:var(--paper);border:1.5px solid var(--ink);
  font-weight:800;font-size:14px;letter-spacing:.02em;
}
.flow-item h3{margin-top:20px;font-size:20px;font-weight:700}
.flow-item p{margin-top:10px;color:var(--text-muted);font-size:15px;line-height:1.8}

/* ---------- bento rewards ---------- */
.bento{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.b-lg{grid-column:span 2}
.reward-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.reward-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(199,245,63,.4)}
.reward-card.is-soon{border-color:rgba(255,90,43,.45);background:#FBFBF8}
.reward-card.is-soon .reward-media img{filter:grayscale(.7);opacity:.85}
.reward-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#E9EBE4}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.reward-card:hover .reward-media img{transform:scale(1.04)}
.tier{
  position:absolute;left:14px;top:14px;height:26px;padding:0 11px;border-radius:999px;display:inline-flex;align-items:center;
  background:rgba(11,12,14,.82);color:var(--text-dark);font-size:12px;letter-spacing:.08em;
}
.tier-lime{background:var(--lime);color:var(--ink);font-weight:700}
.tier-ember{background:rgba(255,90,43,.92);color:#fff}
.reward-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.reward-body h3{font-size:20px;font-weight:700}
.reward-body p{color:var(--text-muted);font-size:14.5px;line-height:1.8}
.reward-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;border-top:1px solid var(--line)}
.points{font-size:13px;color:var(--text-muted);letter-spacing:.04em}
.points strong{display:block;font-size:28px;font-weight:800;color:var(--text)}
.state-dot{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text-muted)}
.state-dot i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:inline-block}
.state-dot.is-soft i{background:#8E9299}
.state-dot.is-ember i{background:var(--ember)}

/* ---------- progress ---------- */
.prog-wrap{margin-top:56px;display:grid;grid-template-columns:1.55fr 1fr;gap:32px;align-items:start}
.track-panel{background:var(--ink-card);border:1px solid var(--line-dark);border-radius:var(--radius-card);padding:32px}
.steps{position:relative;padding-top:8px}
.steps-rail{position:relative;height:6px;border-radius:999px;background:rgba(245,246,242,.12);overflow:hidden}
.steps-rail span{position:absolute;inset:0 auto 0 0;width:62%;border-radius:999px;background:linear-gradient(90deg,var(--lime),var(--ember))}
.steps-list{margin-top:22px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step .dot{width:12px;height:12px;border-radius:50%;background:var(--lime);display:block}
.step.is-now .dot{background:var(--ink);border:2px solid var(--paper);box-shadow:0 0 0 4px rgba(199,245,63,.25)}
.step.is-off .dot{background:#8E9299}
.step-name{margin-top:12px;font-size:14.5px;font-weight:600;color:var(--text-dark)}
.step-state{margin-top:6px;font-size:12.5px;color:var(--text-dark-muted);letter-spacing:.06em}
.step.is-off .step-name{color:var(--text-dark-muted)}
.rings{display:grid;grid-template-columns:1fr;gap:24px}
.ring-card{background:var(--ink-card);border:1px solid var(--line-dark);border-radius:var(--radius-card);padding:24px;display:flex;align-items:center;gap:20px}
.ring-svg{width:104px;height:104px;flex:none}
.ring-val{font-size:30px;font-weight:800;color:var(--lime);letter-spacing:-.02em}
.ring-cap{font-size:13px;color:var(--text-dark-muted);margin-top:6px;line-height:1.7}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:var(--text-dark);
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
  padding:96px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(245,246,242,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(245,246,242,.06) 1px,transparent 1px);
  background-size:64px 64px;opacity:.6;pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-size:clamp(24px,3.4vw,40px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.cta-inner p{margin-top:14px;color:var(--text-dark-muted);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}

/* ---------- news / cms ---------- */
.news-layout{margin-top:56px;display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.news-feature{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);display:block;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(199,245,63,.4)}
.news-feature img{aspect-ratio:16/9;object-fit:cover;width:100%;transition:transform .35s var(--ease)}
.news-feature:hover img{transform:scale(1.04)}
.nf-body{padding:26px}
.nf-body h3{margin-top:14px;font-size:24px;font-weight:700;line-height:1.35}
.nf-body p{margin-top:12px;color:var(--text-muted);font-size:15px;line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.nf-meta{margin-top:18px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:13px;color:var(--text-muted)}
.news-list{display:flex;flex-direction:column}
.news-row{
  display:flex;gap:16px;padding:18px 16px 18px 18px;border-left:1px solid var(--line);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.news-row:hover{background:#FAFAF7;border-left-color:var(--lime)}
.news-row:hover h4{color:var(--ink);font-weight:700}
.news-row img{width:84px;height:64px;object-fit:cover;border-radius:10px;flex:none}
.news-row h4{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row p{margin-top:8px;font-size:13.5px;color:var(--text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .nr-meta{margin-top:10px;display:flex;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--text-muted)}
.news-empty{
  margin-top:56px;border:1px dashed #CFD3CA;border-radius:var(--radius-card);padding:56px 32px;
  text-align:center;color:var(--text-muted);background:#FBFBF8;
}
.news-empty strong{display:block;color:var(--text);font-size:17px;font-weight:600;margin-bottom:8px}

/* ---------- category entries ---------- */
.cat-grid{margin-top:56px;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(199,245,63,.4)}
.cat-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.cat-body{padding:26px}
.cat-body h3{font-size:22px;font-weight:700}
.cat-body p{margin-top:12px;color:var(--text-muted);font-size:15px;line-height:1.85}
.cat-tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;border:1px solid var(--line);font-size:12.5px;color:var(--text-muted)}
.cat-more{margin-top:22px;display:inline-flex;align-items:center;gap:8px;color:var(--text);font-weight:600;font-size:15px}
.cat-card:hover .cat-more{color:var(--lime-active)}

/* ---------- faq ---------- */
.faq-wrap{margin-top:56px;display:grid;grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--ink)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:#5C6167;transition:transform .22s var(--ease),background .22s var(--ease)}
.faq-icon::before{left:0;right:0;top:7.2px;height:1.5px}
.faq-icon::after{top:0;bottom:0;left:7.2px;width:1.5px}
.faq-item.is-open .faq-icon::before{background:var(--lime-active)}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);background:var(--lime-active)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 0 24px;color:var(--text-muted);font-size:15.5px;line-height:1.9;max-width:660px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-footer);color:var(--text-dark-muted);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;color:var(--text-dark);font-weight:700;font-size:18px}
.site-footer p{font-size:14px;line-height:1.85}
.footer-col h4{color:var(--text-dark);font-size:14px;letter-spacing:.08em;margin-bottom:18px;font-weight:600}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;
}
.footer-bottom a:hover{color:var(--lime)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-aside{width:236px;right:32px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav,.countdown-pill,.header-right .badge,.header-cta{display:none}
  .menu-toggle{display:flex}
  .section{padding:72px 0}
  .hero{min-height:auto}
  .hero-inner{padding:88px 0 72px;max-width:100%}
  .hero-aside{display:none}
  .hero-dots{top:52px;right:20px;opacity:.35}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat-bar li:nth-child(3){padding-left:0;border-left:0}
  .flow{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .flow::before{display:none}
  .bento{grid-template-columns:repeat(2,1fr)}
  .b-lg{grid-column:span 2}
  .prog-wrap{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .cta-band{padding:64px 0}
  .hero-inner{padding:72px 0 56px}
  .hero h1{font-size:clamp(30px,8.4vw,40px)}
  .hero-actions{width:100%}
  .hero-actions .btn{width:100%}
  .hero-cd{width:100%;justify-content:center}
  .stat-bar{grid-template-columns:1fr;gap:20px}
  .stat-bar li{padding:0 0 16px;border-left:0;border-bottom:1px solid var(--line-dark)}
  .stat-bar li:last-child{padding-bottom:0;border-bottom:0}
  .flow{grid-template-columns:1fr;gap:26px}
  .bento,.cat-grid{grid-template-columns:1fr}
  .b-lg{grid-column:span 1}
  .steps-list{grid-template-columns:1fr;gap:18px}
  .step{display:flex;gap:14px;align-items:baseline}
  .step .dot{margin-top:6px}
  .step-name{margin-top:0}
  .step-state{margin-top:0;margin-left:auto}
  .ring-card{flex-direction:column;align-items:flex-start}
  .news-row{padding:16px 0;border-left:0;border-bottom:1px solid var(--line)}
  .news-row img{width:72px;height:56px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:56px 0 28px}
  .brand-text{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
    --ink:#0B0C0E;
    --ink-800:#14161A;
    --ink-900:#101114;
    --lime:#C7F53F;
    --lime-soft:#D6FF5C;
    --lime-deep:#A9D62C;
    --ember:#FF5A2B;
    --paper:#F5F6F2;
    --card:#FFFFFF;
    --line:#E4E6E0;
    --line-dark:rgba(245,246,242,.14);
    --txt:#16181C;
    --txt-2:#5C6167;
    --txt-3:#8E9299;
    --dark-txt:#F5F6F2;
    --dark-txt-2:#A9ADB3;
    --radius-card:18px;
    --radius-btn:10px;
    --shadow-card:0 1px 2px rgba(11,12,14,.06);
    --shadow-lift:0 17px 40px -18px rgba(11,12,14,.28);
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::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,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--txt);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:32px;
    padding-right:32px;
  }
  .container-wide{max-width:1360px;}

  a:focus-visible,
  button:focus-visible,
  input:focus-visible{
    outline:2px solid var(--lime);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(11,12,14,.86);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:background .25s var(--ease),border-color .25s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(11,12,14,.96);
    border-bottom-color:var(--line-dark);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:72px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--dark-txt);
    font-size:19px;
    font-weight:700;
    letter-spacing:-.01em;
    white-space:nowrap;
  }
  .brand svg{flex:none;}
  .brand:hover span{color:var(--lime);}
  .brand span{transition:color .2s var(--ease);}

  .main-nav{
    display:flex;
    align-items:center;
    gap:30px;
    margin-left:auto;
  }
  .nav-link{
    position:relative;
    padding:6px 0;
    font-size:14px;
    letter-spacing:.04em;
    color:var(--dark-txt-2);
    transition:color .2s var(--ease);
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;
    right:0;
    bottom:-2px;
    height:2px;
    background:var(--lime);
    border-radius:2px;
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .2s var(--ease);
  }
  .nav-link:hover{color:var(--dark-txt);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--lime);}
  .nav-link.is-active::after{transform:scaleX(1);}

  .header-actions{
    display:flex;
    align-items:center;
    gap:14px;
  }
  .status-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:26px;
    padding:0 11px;
    border:1px solid rgba(255,90,43,.55);
    border-radius:999px;
    font-size:12px;
    letter-spacing:.06em;
    color:#FFB79E;
    white-space:nowrap;
  }
  .status-badge i{
    width:6px;height:6px;border-radius:50%;
    background:var(--ember);
    animation:pulse 1.8s infinite;
  }
  .countdown-pill{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:28px;
    padding:0 12px;
    border-radius:999px;
    background:rgba(245,246,242,.07);
    border:1px solid var(--line-dark);
    font-size:12px;
    color:var(--dark-txt-2);
    white-space:nowrap;
  }
  .countdown-pill .dot{
    width:7px;height:7px;border-radius:50%;
    background:var(--lime);
    animation:pulse 1.6s infinite;
  }
  .countdown-pill b{
    color:var(--lime);
    font-weight:700;
    letter-spacing:.04em;
  }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 24px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  }
  .btn-primary{
    background:var(--lime);
    color:var(--ink);
    box-shadow:0 10px 24px -14px rgba(199,245,63,.6);
  }
  .btn-primary:hover{background:var(--lime-soft);transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(199,245,63,.45);}
  .btn-primary:active{transform:translateY(0) scale(.985);background:var(--lime-deep);}
  .btn-ghost-light{
    background:transparent;
    color:var(--dark-txt);
    border-color:rgba(245,246,242,.28);
  }
  .btn-ghost-light:hover{background:rgba(245,246,242,.08);transform:translateY(-1px);}
  .btn-ghost-dark{
    background:transparent;
    color:var(--txt);
    border-color:#D8DAD4;
  }
  .btn-ghost-dark:hover{background:rgba(11,12,14,.05);transform:translateY(-1px);}
  .btn-sm{height:38px;padding:0 18px;font-size:14px;}
  .btn-block{width:100%;}

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;
    justify-content:center;
    background:transparent;
    border:1px solid var(--line-dark);
    border-radius:var(--radius-btn);
    color:var(--dark-txt);
    cursor:pointer;
  }
  .nav-toggle svg{display:block;}

  .mobile-drawer{
    position:fixed;
    inset:72px 0 0 0;
    background:rgba(11,12,14,.97);
    backdrop-filter:blur(10px);
    padding:28px 24px 40px;
    display:flex;
    flex-direction:column;
    gap:6px;
    overflow-y:auto;
    z-index:55;
  }
  .mobile-drawer[hidden]{display:none;}
  .mobile-drawer a.drawer-link{
    display:block;
    padding:16px 4px;
    border-bottom:1px solid var(--line-dark);
    font-size:20px;
    font-weight:600;
    color:var(--dark-txt);
  }
  .mobile-drawer a.drawer-link.is-active{color:var(--lime);}
  .drawer-foot{
    margin-top:24px;
    display:flex;
    flex-direction:column;
    gap:14px;
    color:var(--dark-txt-2);
    font-size:13px;
  }

  /* ---------- 装饰母题 ---------- */
  .grid-motif{
    background-image:
      linear-gradient(to right, rgba(199,245,63,.10) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(199,245,63,.10) 1px, transparent 1px);
    background-size:48px 48px;
  }
  .grid-motif-dark{
    background-image:
      linear-gradient(to right, rgba(11,12,14,.06) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(11,12,14,.06) 1px, transparent 1px);
    background-size:48px 48px;
  }

  /* ---------- 文章头部 ---------- */
  .article-hero{
    position:relative;
    background:var(--ink);
    color:var(--dark-txt);
    overflow:hidden;
    padding:44px 0 56px;
  }
  .article-hero::before{
    content:"";
    position:absolute;
    right:-60px;top:-40px;
    width:320px;height:320px;
    background-image:
      linear-gradient(to right, rgba(199,245,63,.16) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(199,245,63,.16) 1px, transparent 1px);
    background-size:40px 40px;
    opacity:.55;
    pointer-events:none;
  }
  .article-hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:radial-gradient(760px 320px at 12% 0%, rgba(199,245,63,.10), transparent 70%);
    pointer-events:none;
  }
  .article-hero .container{position:relative;z-index:2;}

  .breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--dark-txt-2);
    margin-bottom:26px;
  }
  .breadcrumb a{color:var(--dark-txt-2);transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--lime);}
  .breadcrumb .sep{opacity:.45;}
  .breadcrumb .current{color:var(--dark-txt);}

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    letter-spacing:.14em;
    color:var(--lime);
    text-transform:uppercase;
    margin-bottom:16px;
  }
  .eyebrow::before{
    content:"";
    width:22px;height:1px;
    background:var(--lime);
    opacity:.7;
  }
  .tag-chip{
    display:inline-flex;
    align-items:center;
    height:26px;
    padding:0 12px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.06em;
    border:1px solid rgba(199,245,63,.45);
    background:rgba(199,245,63,.10);
    color:var(--lime-soft);
  }

  .article-title{
    font-size:clamp(26px,3.6vw,42px);
    font-weight:800;
    line-height:1.24;
    letter-spacing:-.02em;
    max-width:860px;
    margin:14px 0 22px;
    color:var(--dark-txt);
  }

  .meta-row{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px 22px;
    font-size:13px;
    color:var(--dark-txt-2);
  }
  .meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
  .meta-row svg{opacity:.7;}
  .meta-row .divider{
    width:1px;height:14px;
    background:var(--line-dark);
  }

  /* ---------- 布局 ---------- */
  .layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 304px;
    gap:40px;
    align-items:start;
    padding:56px 0 8px;
  }

  .article-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    padding:40px clamp(20px,4vw,52px) 46px;
  }

  .article-body{
    max-width:820px;
    font-size:17px;
    line-height:1.9;
    color:var(--txt);
    overflow-wrap:break-word;
  }
  .article-body > * + *{margin-top:1.35em;}
  .article-body h2{
    position:relative;
    margin-top:2.1em;
    padding-left:18px;
    font-size:clamp(21px,2.5vw,28px);
    font-weight:700;
    line-height:1.35;
    letter-spacing:-.01em;
    scroll-margin-top:96px;
  }
  .article-body h2::before{
    content:"";
    position:absolute;
    left:0;top:.28em;bottom:.28em;
    width:3px;
    border-radius:2px;
    background:var(--lime);
  }
  .article-body h3{
    margin-top:1.7em;
    font-size:20px;
    font-weight:600;
    line-height:1.4;
  }
  .article-body p{color:#1F2226;}
  .article-body a{
    color:var(--ink);
    border-bottom:1px solid var(--lime);
    transition:background-color .2s var(--ease);
  }
  .article-body a:hover{background:rgba(199,245,63,.28);}
  .article-body strong{font-weight:700;color:var(--ink);}
  .article-body ul,
  .article-body ol{list-style:none;padding-left:0;}
  .article-body ul li{position:relative;padding-left:22px;margin-top:.55em;}
  .article-body ul li::before{
    content:"";
    position:absolute;
    left:0;top:.72em;
    width:8px;height:8px;
    border-radius:2px;
    background:var(--lime);
  }
  .article-body ol{counter-reset:cmsli;}
  .article-body ol li{
    counter-increment:cmsli;
    position:relative;
    padding-left:38px;
    margin-top:.7em;
  }
  .article-body ol li::before{
    content:counter(cmsli,decimal-leading-zero);
    position:absolute;
    left:0;top:.28em;
    padding:1px 6px;
    font-size:12px;
    font-weight:800;
    border-radius:6px;
    background:var(--lime);
    color:var(--ink);
    font-variant-numeric:tabular-nums;
  }
  .article-body blockquote{
    border-left:3px solid var(--lime);
    background:var(--paper);
    border-radius:0 12px 12px 0;
    padding:18px 24px;
    color:#3A3D42;
  }
  .article-body img{border-radius:12px;margin:0 auto;}
  .article-body figure figcaption{
    margin-top:10px;
    font-size:13px;
    color:var(--txt-3);
    text-align:center;
  }
  .article-body table{
    display:block;
    width:100%;
    overflow-x:auto;
    border:1px solid var(--line);
    border-radius:12px;
    border-collapse:collapse;
  }
  .article-body th,
  .article-body td{
    border:1px solid var(--line);
    padding:10px 14px;
    font-size:15px;
    text-align:left;
    white-space:nowrap;
  }
  .article-body th{background:var(--paper);font-weight:600;}
  .article-body hr{
    border:0;
    height:1px;
    background:var(--line);
    margin:2.2em 0;
  }
  .article-body code{
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:6px;
    padding:1px 6px;
    font-size:14px;
  }

  .empty-state{
    border:1px dashed #CFD2CA;
    border-radius:var(--radius-card);
    background:var(--paper);
    padding:48px 32px;
    text-align:center;
    max-width:640px;
  }
  .empty-state h2{font-size:24px;font-weight:700;margin-bottom:12px;}
  .empty-state p{color:var(--txt-2);margin-bottom:24px;}

  /* ---------- 侧栏 ---------- */
  .sidebar{
    position:sticky;
    top:100px;
    display:flex;
    flex-direction:column;
    gap:20px;
  }
  .side-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    padding:22px;
  }
  .side-card h3{
    font-size:13px;
    letter-spacing:.1em;
    color:var(--txt-3);
    margin-bottom:14px;
    font-weight:600;
  }
  #tocList{list-style:none;padding:0;margin:0;border-left:1px solid var(--line);}
  #tocList li{margin:0;}
  #tocList a{
    display:block;
    padding:7px 0 7px 14px;
    margin-left:-1px;
    border-left:2px solid transparent;
    font-size:14px;
    color:var(--txt-2);
    line-height:1.5;
    transition:color .2s var(--ease),border-color .2s var(--ease);
  }
  #tocList a:hover{color:var(--ink);border-left-color:var(--lime);}
  .side-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
  .side-links a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding:11px 0;
    border-bottom:1px dashed var(--line);
    font-size:14px;
    color:var(--txt);
    transition:color .2s var(--ease);
  }
  .side-links li:last-child a{border-bottom:0;}
  .side-links a:hover{color:var(--lime-deep);}
  .side-links a span.arrow{color:var(--txt-3);font-size:12px;}
  .side-cta{
    background:var(--ink);
    border:1px solid var(--ink-800);
    color:var(--dark-txt);
  }
  .side-cta h3{color:var(--dark-txt-2);}
  .side-cta p{font-size:14px;color:var(--dark-txt-2);margin-bottom:18px;}
  .side-cta .num{color:var(--lime);font-size:30px;font-weight:800;line-height:1.1;}

  /* ---------- 标签与延伸阅读 ---------- */
  .section{padding:72px 0;}
  .section-tight{padding:48px 0;}
  .section-dark{
    background:var(--ink);
    color:var(--dark-txt);
  }
  .section-title{
    font-size:clamp(22px,2.8vw,30px);
    font-weight:700;
    letter-spacing:-.01em;
    line-height:1.3;
  }
  .section-sub{
    color:var(--txt-2);
    font-size:15px;
    margin-top:10px;
    max-width:640px;
  }
  .section-dark .section-sub{color:var(--dark-txt-2);}

  .tag-list{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:20px;
  }
  .tag-item{
    display:inline-flex;
    align-items:center;
    height:30px;
    padding:0 14px;
    border-radius:999px;
    border:1px solid var(--line);
    background:var(--card);
    font-size:13px;
    color:var(--txt-2);
    transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .tag-item:hover{border-color:rgba(199,245,63,.8);color:var(--ink);transform:translateY(-1px);}

  .nav-cards{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:20px;
    margin-top:28px;
  }
  .nav-card{
    display:flex;
    flex-direction:column;
    gap:10px;
    padding:26px;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--card);
    box-shadow:var(--shadow-card);
    transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .nav-card:hover{
    transform:translateY(-3px);
    border-color:rgba(199,245,63,.55);
    box-shadow:var(--shadow-lift);
  }
  .nav-card .kicker{font-size:12px;letter-spacing:.12em;color:var(--txt-3);}
  .nav-card h3{font-size:20px;font-weight:700;line-height:1.4;}
  .nav-card p{font-size:14px;color:var(--txt-2);line-height:1.75;}
  .nav-card .go{
    margin-top:6px;
    font-size:14px;
    font-weight:600;
    color:var(--ink);
    display:inline-flex;
    align-items:center;
    gap:6px;
  }
  .nav-card:hover .go{color:var(--lime-deep);}
  .nav-card.align-right{text-align:right;align-items:flex-end;}

  /* ---------- 内容卡片 ---------- */
  .card-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
    margin-top:32px;
  }
  .post-card{
    display:flex;
    flex-direction:column;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .post-card:hover{
    transform:translateY(-3px);
    border-color:rgba(199,245,63,.55);
    box-shadow:var(--shadow-lift);
  }
  .post-thumb{
    position:relative;
    aspect-ratio:16/10;
    overflow:hidden;
    background:var(--ink-800);
  }
  .post-thumb img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .4s var(--ease);
  }
  .post-card:hover .post-thumb img{transform:scale(1.04);}
  .post-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .post-body h3{font-size:17px;font-weight:600;line-height:1.5;}
  .post-body p{
    font-size:14px;
    color:var(--txt-2);
    line-height:1.7;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .post-meta{
    margin-top:auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    font-size:12.5px;
    color:var(--txt-3);
  }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    background:var(--ink);
    color:var(--dark-txt);
    overflow:hidden;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:
      linear-gradient(to right, rgba(245,246,242,.05) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(245,246,242,.05) 1px, transparent 1px);
    background-size:44px 44px;
    pointer-events:none;
  }
  .cta-inner{
    position:relative;
    z-index:2;
    padding:86px 0;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:32px;
  }
  .cta-band h2{
    font-size:clamp(24px,3.2vw,36px);
    font-weight:800;
    line-height:1.25;
    letter-spacing:-.02em;
    max-width:640px;
  }
  .cta-band p{
    margin-top:14px;
    color:var(--dark-txt-2);
    font-size:15px;
    max-width:560px;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
  .mini-count{
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-top:20px;
    font-size:13px;
    color:var(--dark-txt-2);
  }
  .mini-count b{color:var(--lime);font-weight:700;letter-spacing:.04em;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink-900);
    color:var(--dark-txt-2);
    padding:68px 0 30px;
    font-size:14px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:44px;
    border-bottom:1px solid var(--line-dark);
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--dark-txt);
    font-size:17px;
    font-weight:700;
  }
  .footer-col h4{
    font-size:13px;
    letter-spacing:.1em;
    color:var(--dark-txt);
    margin-bottom:16px;
    font-weight:600;
  }
  .footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
  .footer-col a{color:var(--dark-txt-2);transition:color .2s var(--ease),border-color .2s var(--ease);border-bottom:1px solid transparent;}
  .footer-col a:hover{color:var(--lime);border-bottom-color:var(--lime);}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-top:24px;
    font-size:13px;
    color:#7E838A;
  }

  @keyframes pulse{
    0%,100%{opacity:1;transform:scale(1);}
    50%{opacity:.45;transform:scale(.85);}
  }

  @media (max-width:1023px){
    .main-nav{display:none;}
    .nav-toggle{display:inline-flex;}
    .countdown-pill{display:none;}
    .header-actions .btn-primary{display:none;}
    .layout{grid-template-columns:minmax(0,1fr);gap:32px;}
    .sidebar{position:static;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:767px){
    .container{padding-left:20px;padding-right:20px;}
    .header-inner{height:64px;gap:12px;}
    .brand{font-size:16px;}
    .article-hero{padding:32px 0 44px;}
    .article-card{padding:26px 18px 32px;border-radius:16px;}
    .article-body{font-size:16px;line-height:1.85;}
    .section{padding:56px 0;}
    .nav-cards{grid-template-columns:minmax(0,1fr);}
    .card-grid{grid-template-columns:minmax(0,1fr);}
    .cta-inner{padding:64px 0;}
    .footer-grid{grid-template-columns:1fr 1fr;padding-bottom:32px;}
    .mobile-drawer{inset:64px 0 0 0;}
  }
  @media (max-width:519px){
    .brand span{font-size:15px;}
    .footer-grid{grid-template-columns:1fr;}
    .btn{width:100%;}
    .cta-actions{width:100%;}
    .meta-row .divider{display:none;}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.01ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.01ms !important;
      scroll-behavior:auto !important;
    }
    .post-card:hover .post-thumb img{transform:none;}
  }

/* roulang page: category1 */
:root{
  --ink-900:#0B0C0E;
  --ink-800:#101114;
  --ink-700:#14161A;
  --lime:#C7F53F;
  --lime-hover:#D6FF5C;
  --lime-active:#A9D62C;
  --lime-soft:rgba(199,245,63,.16);
  --lime-text:#4E6609;
  --ember:#FF5A2B;
  --paper:#F5F6F2;
  --card:#FFFFFF;
  --line:#E4E6E0;
  --line-dark:rgba(245,246,242,.14);
  --text:#16181C;
  --text-mute:#5C6167;
  --text-inv:#F5F6F2;
  --text-inv-mute:#A9ADB3;
  --text-dim:#8E9299;
  --radius-card:18px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(11,12,14,.06);
  --shadow-hover:0 17px 40px -18px rgba(11,12,14,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --max:1200px;
}

*,*::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,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
::selection{background:var(--lime);color:var(--ink-900);}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,12,14,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,12,14,.96);
  border-bottom-color:var(--line-dark);
}
.header-inner{
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  height:72px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text-inv);
  font-size:19px;
  font-weight:800;
  letter-spacing:.01em;
}
.brand svg{flex-shrink:0;display:block;}
.brand-text{white-space:nowrap;}

.main-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:30px;
  flex:1;
}
.nav-link{
  position:relative;
  font-size:14px;
  letter-spacing:.04em;
  color:var(--text-inv-mute);
  padding:6px 0;
  transition:color .2s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--text-inv);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-inv);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.header-side{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.countdown-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--line-dark);
  font-size:12px;
  color:var(--text-inv-mute);
  letter-spacing:.04em;
  white-space:nowrap;
}
.countdown-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--lime);
  animation:pulseDot 1.6s ease-in-out infinite;
}
@keyframes pulseDot{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.42;transform:scale(.82);}
}
.countdown-num{
  font-variant-numeric:tabular-nums;
  font-weight:700;
  color:var(--lime);
  letter-spacing:.06em;
}
.status-badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 11px;
  border-radius:999px;
  border:1px solid rgba(255,90,43,.5);
  color:var(--ember);
  font-size:12px;
  letter-spacing:.05em;
  white-space:nowrap;
}

.menu-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--line-dark);
  color:var(--text-inv);
}
.menu-toggle span{
  display:block;
  width:18px;height:1.5px;
  background:currentColor;
  position:relative;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:1.5px;
  background:currentColor;
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:95;
  display:none;
  flex-direction:column;
  padding:22px 24px 34px;
  background:rgba(11,12,14,.97);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  color:var(--text-inv);
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-bottom:22px;
  border-bottom:1px solid var(--line-dark);
}
.drawer-head .brand-text{font-size:18px;font-weight:800;}
.drawer-close{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line-dark);
  font-size:20px;
  line-height:1;
  color:var(--text-inv);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:28px 0;flex:1;}
.drawer-link{
  font-size:24px;
  font-weight:700;
  padding:16px 0;
  color:var(--text-inv-mute);
  border-bottom:1px solid rgba(245,246,242,.08);
  letter-spacing:.01em;
}
.drawer-link.is-active{color:var(--lime);}
.drawer-foot{display:flex;flex-direction:column;gap:16px;}
.drawer-cta{width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{
  background:var(--lime);
  color:var(--ink-900);
}
.btn-primary:hover{
  background:var(--lime-hover);
  transform:translateY(-1px);
  box-shadow:0 10px 24px -10px rgba(199,245,63,.55);
}
.btn-primary:active{transform:translateY(0) scale(.985);background:var(--lime-active);}
.btn-ghost{
  border:1px solid rgba(245,246,242,.28);
  color:var(--text-inv);
}
.btn-ghost:hover{background:rgba(245,246,242,.07);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0) scale(.985);}
.btn-outline{
  border:1px solid #D8DAD4;
  color:var(--text);
  background:transparent;
}
.btn-outline:hover{background:rgba(11,12,14,.05);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section-paper{background:var(--paper);}
.section-white{background:#fff;}
.section-dark{background:var(--ink-900);color:var(--text-inv);}
.section-dark .sec-title{color:var(--text-inv);}

.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--text-mute);
  text-transform:none;
}
.eyebrow::before{
  content:"";
  width:14px;height:2px;
  background:var(--lime);
  display:inline-block;
}
.section-dark .eyebrow{color:var(--text-inv-mute);}
.sec-title{
  font-size:clamp(24px,3.4vw,40px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  margin-top:14px;
}
.sec-desc{
  margin-top:16px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-mute);
}
.section-dark .sec-desc{color:var(--text-inv-mute);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  color:var(--text-inv);
}
.hero-media{position:absolute;inset:0;}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
  opacity:.5;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,12,14,.95) 0%,rgba(11,12,14,.8) 46%,rgba(11,12,14,.36) 100%);
}
.hero-dots{
  position:absolute;
  top:38px;right:48px;
  width:132px;height:132px;
  opacity:.12;
  background-image:
    linear-gradient(to right, var(--text-inv) 1px, transparent 1px),
    linear-gradient(to bottom, var(--text-inv) 1px, transparent 1px);
  background-size:44px 44px;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,.55fr);
  gap:56px;
  align-items:center;
  min-height:400px;
  padding:78px 0 72px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(199,245,63,.42);
  background:rgba(199,245,63,.08);
  color:var(--lime);
  font-size:12.5px;
  letter-spacing:.12em;
  font-weight:600;
}
.hero h1{
  margin-top:22px;
  font-size:clamp(32px,5.4vw,58px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  max-width:16em;
}
.hero-sub{
  margin-top:20px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-inv-mute);
  max-width:34em;
}
.hero-actions{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
}
.hero-mini{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-inv-mute);
  letter-spacing:.04em;
}
.hero-stats{
  display:grid;
  gap:26px;
  border-left:1px solid var(--line-dark);
  padding-left:32px;
}
.stat-num{
  font-size:34px;
  font-weight:800;
  line-height:1;
  color:var(--lime);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat-label{
  margin-top:8px;
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--text-inv-mute);
}

/* ---------- 规则概览 ---------- */
.intro-layout{
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.prose p{
  font-size:17px;
  line-height:1.9;
  margin-bottom:1.4em;
  color:var(--text);
}
.prose p:last-child{margin-bottom:0;}
.prose strong{font-weight:700;}
.prose-mark{
  display:block;
  margin:26px 0 0;
  padding:16px 22px;
  border-left:3px solid var(--lime);
  background:#fff;
  border-radius:0 12px 12px 0;
  font-size:15px;
  line-height:1.85;
  color:var(--text-mute);
}
.concept-list{display:grid;gap:14px;}
.concept{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:22px;
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.concept:hover{
  transform:translateY(-3px);
  border-color:rgba(199,245,63,.8);
  box-shadow:var(--shadow-hover);
}
.concept-tag{
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--lime-text);
}
.concept h3{
  font-size:17px;
  font-weight:700;
  margin:10px 0 8px;
  line-height:1.4;
}
.concept p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-mute);
}

/* ---------- 要点清单 ---------- */
.rules-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 56px;
  border-top:1px solid var(--line-dark);
}
.rule-item{
  display:flex;
  gap:20px;
  padding:28px 0;
  border-bottom:1px solid var(--line-dark);
}
.rule-index{
  flex-shrink:0;
  width:46px;
  font-size:22px;
  font-weight:800;
  line-height:1.2;
  color:var(--lime);
  font-variant-numeric:tabular-nums;
}
.rule-body h3{
  font-size:17.5px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:9px;
}
.rule-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-inv-mute);
}

/* ---------- 流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.flow-step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:28px 24px 26px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.flow-step::after{
  content:"";
  position:absolute;
  top:0;left:24px;
  width:36px;height:2px;
  background:var(--lime);
}
.flow-step:hover{
  transform:translateY(-3px);
  border-color:rgba(199,245,63,.8);
  box-shadow:var(--shadow-hover);
}
.flow-num{
  width:40px;height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid rgba(199,245,63,.9);
  background:var(--lime-soft);
  color:var(--lime-text);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.flow-step h3{
  font-size:17.5px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:10px;
}
.flow-step p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-mute);
}

/* ---------- 场景日志 ---------- */
.log-list{display:grid;gap:12px;max-width:960px;}
.log-row{
  display:flex;
  gap:20px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--line);
  border-left:3px solid var(--lime);
  border-radius:12px;
  padding:22px 24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.log-row:hover{transform:translateX(3px);box-shadow:var(--shadow-hover);}
.log-time{
  flex-shrink:0;
  width:92px;
  padding-top:2px;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--text-dim);
  font-variant-numeric:tabular-nums;
}
.log-text{
  font-size:15.5px;
  line-height:1.8;
  color:var(--text);
}
.log-text b{font-weight:700;}

/* ---------- 精选入口卡片 ---------- */
.pick-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:26px;
}
.card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(199,245,63,.8);
  box-shadow:var(--shadow-hover);
}
.card-media{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--ink-700);
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  flex:1;
}
.card-tag{
  align-self:flex-start;
  padding:4px 11px;
  border-radius:999px;
  background:var(--lime-soft);
  color:var(--lime-text);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.08em;
}
.card h3{
  font-size:18px;
  font-weight:700;
  line-height:1.45;
}
.card p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-mute);
}
.card-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px dashed var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-mute);
}
.card-foot .go{
  color:var(--lime-text);
  font-weight:600;
}

/* ---------- FAQ ---------- */
.faq-list{
  max-width:880px;
  margin:0 auto;
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:26px 0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:#000;}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:16px;height:16px;
  color:var(--text-mute);
  transition:color .22s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
}
.faq-icon::before{left:0;top:7.25px;width:16px;height:1.5px;}
.faq-icon::after{left:7.25px;top:0;width:1.5px;height:16px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.faq-item.is-open .faq-icon{color:var(--lime-active);}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{
  max-width:720px;
  padding:0 0 28px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-mute);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  color:var(--text-inv);
  padding:96px 0;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right, rgba(245,246,242,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245,246,242,.06) 1px, transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.cta-inner{position:relative;max-width:760px;}
.cta-inner h2{
  font-size:clamp(26px,3.8vw,42px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
  margin-top:16px;
}
.cta-inner p{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-inv-mute);
}
.cta-actions{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-800);
  color:var(--text-inv);
  padding-top:76px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:var(--text-inv);
}
.footer-brand svg{flex-shrink:0;display:block;}
.footer-col h4{
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--lime);
  margin-bottom:20px;
}
.footer-col ul{display:grid;gap:13px;}
.footer-col li{
  font-size:14px;
  line-height:1.75;
  color:var(--text-inv-mute);
}
.footer-col a{
  color:var(--text-inv-mute);
  transition:color .2s var(--ease);
}
.footer-col a:hover{
  color:var(--lime);
  text-decoration:underline;
  text-underline-offset:4px;
}
.site-footer p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-inv-mute);
}
.footer-bottom{
  margin-top:60px;
  border-top:1px solid var(--line-dark);
  padding:24px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:var(--text-dim);
}

/* ---------- 入场动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .header-inner{padding:0 24px;}
  .container{padding:0 24px;}
}

@media (max-width:1023px){
  .main-nav{display:none;}
  .header-side .countdown-pill,
  .header-side .status-badge,
  .header-side .btn-primary{display:none;}
  .menu-toggle{display:inline-flex;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px;}
}

@media (max-width:860px){
  .hero-inner{
    grid-template-columns:1fr;
    gap:36px;
    min-height:0;
    padding:56px 0 52px;
  }
  .hero-dots{width:96px;height:96px;top:24px;right:20px;background-size:32px 32px;}
  .hero-stats{
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:16px;
    border-left:0;
    border-top:1px solid var(--line-dark);
    padding-left:0;
    padding-top:26px;
  }
  .stat-num{font-size:26px;}
  .intro-layout{grid-template-columns:1fr;gap:36px;}
  .section{padding:64px 0;}
  .cta-band{padding:64px 0;}
}

@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{padding:0 20px;height:64px;}
  .brand{font-size:17px;}
  .rules-grid{grid-template-columns:1fr;gap:0;}
  .flow{grid-template-columns:1fr;}
  .pick-grid{grid-template-columns:1fr;}
  .log-row{flex-direction:column;gap:8px;}
  .log-time{width:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .hero h1{font-size:clamp(28px,8vw,40px);}
  .sec-head{margin-bottom:34px;}
}

@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15.5px;padding:22px 0;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink:#0B0C0E;
  --ink-2:#14161A;
  --ink-3:#101114;
  --lime:#C7F53F;
  --lime-hover:#D6FF5C;
  --lime-active:#A9D62C;
  --ember:#FF5A2B;
  --paper:#F5F6F2;
  --card:#FFFFFF;
  --line:#E4E6E0;
  --line-dark:rgba(245,246,242,.14);
  --text:#16181C;
  --text-muted:#5C6167;
  --text-invert:#F5F6F2;
  --text-invert-muted:#A9ADB3;
  --radius-card:18px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(11,12,14,.06);
  --shadow-hover:0 17px 40px -18px rgba(11,12,14,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,12,14,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,12,14,.96);
  border-bottom-color:var(--line-dark);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-name{
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text-invert);
  white-space:nowrap;
}
.brand-name-short{display:none}
.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  font-size:14px;
  letter-spacing:.04em;
  color:var(--text-invert-muted);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--text-invert)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--lime)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.countdown-pill{
  display:flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  border:1px solid var(--line-dark);
  border-radius:999px;
  font-size:12px;
  color:var(--text-invert-muted);
}
.countdown-pill .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--lime);
  animation:pulse 1.8s infinite;
}
.countdown-pill .cd-item{display:flex;align-items:baseline;gap:2px}
.countdown-pill b{
  font-size:12px;
  font-weight:700;
  color:var(--text-invert);
  font-variant-numeric:tabular-nums;
}
.countdown-pill i{font-style:normal;font-size:11px;color:var(--text-invert-muted)}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.45;transform:scale(.85)}
}
.status-badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 11px;
  border:1px solid rgba(255,90,43,.6);
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  color:#FFD9CB;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line-dark);
  border-radius:10px;
  background:transparent;
  padding:0;
  position:relative;
}
.nav-toggle span{
  position:absolute;
  left:11px;right:11px;
  height:1.6px;
  background:var(--text-invert);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(11,12,14,.96);
  backdrop-filter:blur(10px);
  padding:88px 24px 28px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.mobile-drawer[hidden]{display:none}
.drawer-link{
  font-size:22px;
  font-weight:700;
  color:var(--text-invert);
  padding:16px 0;
  border-bottom:1px solid var(--line-dark);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.drawer-link.is-active{color:var(--lime)}
.drawer-foot{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.drawer-close{
  position:absolute;
  top:22px;right:24px;
  width:42px;height:42px;
  border:1px solid var(--line-dark);
  border-radius:10px;
  background:transparent;
  color:var(--text-invert);
  font-size:18px;
  line-height:1;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:var(--lime);
  color:var(--ink);
}
.btn-primary:hover{
  background:var(--lime-hover);
  transform:translateY(-1px);
  box-shadow:0 10px 24px -10px rgba(199,245,63,.55);
}
.btn-primary:active{transform:translateY(0) scale(.985);background:var(--lime-active)}
.btn-ghost{
  background:transparent;
  border-color:rgba(245,246,242,.28);
  color:var(--text-invert);
}
.btn-ghost:hover{background:rgba(245,246,242,.08);transform:translateY(-1px)}
.btn-ghost-dark{
  background:transparent;
  border-color:#D8DAD4;
  color:var(--text);
}
.btn-ghost-dark:hover{background:rgba(11,12,14,.06);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:var(--ink);
  color:var(--text-invert);
  overflow:hidden;
  padding:86px 0 76px;
}
.hero::before{
  content:"";
  position:absolute;
  top:-40px;right:-30px;
  width:420px;height:420px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='96'%3E%3Cpath d='M32 0v96M64 0v96M0 32h96M0 64h96' stroke='%23C7F53F' stroke-width='1' opacity='0.16'/%3E%3C/svg%3E");
  opacity:.55;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;
  align-items:start;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--lime);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;height:1.5px;
  background:var(--lime);
  display:block;
}
.hero h1{
  margin-top:20px;
  font-size:clamp(34px,6vw,64px);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.02em;
}
.hero-sub{
  margin-top:22px;
  max-width:620px;
  font-size:17px;
  line-height:1.8;
  color:var(--text-invert-muted);
}
.hero-actions{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
}
.stat-row{
  margin-top:52px;
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line-dark);
  padding-top:26px;
}
.stat{
  flex:1 1 140px;
  padding-right:24px;
  border-right:1px solid var(--line-dark);
  margin-bottom:16px;
}
.stat:last-child{border-right:none}
.stat b{
  display:block;
  font-size:32px;
  font-weight:800;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.stat span{
  display:block;
  margin-top:6px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-invert-muted);
}
.index-list{
  border-top:1px solid var(--line-dark);
  padding-top:20px;
}
.index-item{
  display:grid;
  grid-template-columns:52px 1fr;
  gap:14px;
  padding:18px 0;
  border-bottom:1px solid var(--line-dark);
  transition:padding-left .2s var(--ease);
}
.index-item:hover{padding-left:6px}
.index-item b{
  font-size:13px;
  font-weight:700;
  color:var(--lime);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}
.index-item strong{
  display:block;
  font-size:17px;
  font-weight:600;
  color:var(--text-invert);
}
.index-item p{
  margin-top:4px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-invert-muted);
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-light{background:var(--paper)}
.section-white{background:#FFFFFF}
.section-dark{background:var(--ink);color:var(--text-invert)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,3.4vw,40px);
  font-weight:700;
  line-height:1.2;
  margin-top:16px;
}
.section-head p{
  margin-top:16px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-muted);
}
.section-dark .section-head p{color:var(--text-invert-muted)}
.section-dark .eyebrow{color:var(--lime)}

/* ---------- 奖励档位 bento ---------- */
.reward-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.reward-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.reward-card:hover{
  transform:translateY(-3px);
  border-color:rgba(199,245,63,.55);
  box-shadow:var(--shadow-hover);
}
.reward-card.feature{grid-column:span 2;flex-direction:row}
.reward-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:#E9EBE5;
}
.reward-card.feature .reward-media{
  aspect-ratio:auto;
  width:46%;
  min-height:100%;
}
.reward-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.reward-card:hover .reward-media img{transform:scale(1.04)}
.reward-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:14px;
  flex:1;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 11px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  border:1px solid transparent;
}
.tag-lime{background:rgba(199,245,63,.18);color:#4E6A00;border-color:rgba(169,214,44,.55)}
.tag-ember{background:rgba(255,90,43,.1);color:#B63A14;border-color:rgba(255,90,43,.45)}
.tag-muted{background:#F0F1EC;color:#6E7378;border-color:var(--line)}
.tag-invert{background:rgba(245,246,242,.06);color:var(--text-invert-muted);border-color:var(--line-dark)}
.reward-title{
  font-size:22px;
  font-weight:700;
  line-height:1.3;
}
.reward-desc{
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-muted);
}
.reward-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.need{
  font-size:13px;
  color:var(--text-muted);
}
.need b{
  font-size:20px;
  font-weight:800;
  color:var(--text);
  font-variant-numeric:tabular-nums;
}
.card-link{
  font-size:14px;
  font-weight:600;
  color:#5A7A00;
  border-bottom:1.5px solid rgba(169,214,44,.6);
  padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.card-link:hover{color:var(--ink);border-color:var(--ink)}

/* ---------- 进度 ---------- */
.progress-wrap{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:48px;
  align-items:start;
}
.track{
  position:relative;
  height:6px;
  border-radius:6px;
  background:rgba(245,246,242,.14);
  overflow:hidden;
  margin-bottom:34px;
}
.track-fill{
  height:100%;
  width:100%;
  border-radius:6px;
  background:linear-gradient(90deg,var(--lime) 0%,#E5C13A 62%,var(--ember) 100%);
  transform-origin:left;
  animation:fillIn 900ms var(--ease) both;
}
@keyframes fillIn{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.track-nodes{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.node{position:relative;padding-left:20px}
.node::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:12px;height:12px;
  border-radius:50%;
  background:#8E9299;
  box-shadow:0 0 0 4px rgba(245,246,242,.06);
}
.node.is-done::before{background:var(--lime)}
.node.is-live::before{background:var(--paper);border:2px solid var(--lime);width:14px;height:14px;top:5px}
.node.is-locked::before{background:#8E9299;border:1px solid var(--ember)}
.node b{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--text-invert);
}
.node span{
  display:block;
  margin-top:6px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--text-invert-muted);
}
.node.is-done span{color:var(--lime)}
.node.is-locked span{color:#8E9299}
.rings{
  display:flex;
  gap:28px;
  justify-content:flex-start;
  padding:22px 0 0;
}
.ring{
  position:relative;
  width:112px;height:112px;
}
.ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:rgba(245,246,242,.14);stroke-width:7}
.ring-fg{fill:none;stroke:var(--lime);stroke-width:7;stroke-linecap:round;animation:ringIn 900ms var(--ease) both}
@keyframes ringIn{from{stroke-dashoffset:214}to{}}
.ring-num{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  font-size:22px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}
.ring-num small{
  font-size:11px;
  font-weight:400;
  color:var(--text-invert-muted);
  letter-spacing:.06em;
  margin-top:2px;
}

/* ---------- 流程步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  position:relative;
}
.step{
  position:relative;
  padding-left:22px;
  border-left:1px solid var(--line);
}
.step b{
  display:block;
  font-size:13px;
  letter-spacing:.08em;
  color:#5A7A00;
  font-variant-numeric:tabular-nums;
}
.step h3{
  margin-top:10px;
  font-size:20px;
  font-weight:600;
}
.step p{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-muted);
}

/* ---------- 精选内链 ---------- */
.link-cards{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.link-card{
  display:grid;
  grid-template-columns:180px 1fr;
  gap:22px;
  align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.link-card:hover{
  transform:translateY(-3px);
  border-color:rgba(199,245,63,.55);
  box-shadow:var(--shadow-hover);
}
.link-card .thumb{
  aspect-ratio:4/3;
  border-radius:12px;
  overflow:hidden;
  background:#E9EBE5;
}
.link-card .thumb img{width:100%;height:100%;object-fit:cover}
.link-card h3{
  font-size:19px;
  font-weight:700;
  line-height:1.35;
}
.link-card p{
  margin-top:8px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--text-muted);
}
.link-card span{
  display:inline-block;
  margin-top:12px;
  font-size:13px;
  font-weight:600;
  color:#5A7A00;
}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 0;
  font-size:18px;
  font-weight:600;
  color:var(--text);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#5A7A00}
.faq-item summary::after{
  content:"+";
  font-size:22px;
  line-height:1;
  color:var(--text-muted);
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq-item[open] summary::after{content:"−";color:var(--lime-active);transform:rotate(180deg)}
.faq-body{
  padding:0 0 24px;
  max-width:780px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-muted);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-3);
  color:var(--text-invert);
  padding:96px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='48'%3E%3Cpath d='M0 0h48v48H0z' fill='none' stroke='%23F5F6F2' stroke-width='1' opacity='0.05'/%3E%3C/svg%3E");
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  gap:32px;
  align-items:center;
  justify-content:space-between;
}
.cta-inner h2{
  font-size:clamp(24px,3.4vw,40px);
  font-weight:700;
  line-height:1.2;
}
.cta-inner p{
  margin-top:14px;
  max-width:560px;
  font-size:16px;
  color:var(--text-invert-muted);
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-3);
  color:var(--text-invert-muted);
  padding:76px 0 34px;
  border-top:1px solid var(--line-dark);
  font-size:14.5px;
  line-height:1.8;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--text-invert);
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--text-invert);
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px}
.footer-col a{
  transition:color .2s var(--ease),border-color .2s var(--ease);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
}
.footer-col a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.footer-bottom{
  margin-top:56px;
  padding-top:22px;
  border-top:1px solid var(--line-dark);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:#8A8E94;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav,.countdown-pill,.status-badge,.header-right .btn{display:none}
  .nav-toggle{display:block}
  .hero{padding:64px 0 60px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .reward-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .reward-card.feature{grid-column:span 2;flex-direction:column}
  .reward-card.feature .reward-media{width:100%;aspect-ratio:16/10;min-height:0}
  .progress-wrap{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:60px 0}
  .hero{padding:52px 0 52px}
  .brand-name{font-size:17px}
  .reward-grid{grid-template-columns:1fr}
  .reward-card.feature{grid-column:span 1}
  .track-nodes{grid-template-columns:1fr;gap:0}
  .track-nodes .node{padding:16px 0 16px 22px;border-left:1px solid rgba(245,246,242,.16)}
  .track-nodes .node::before{top:22px}
  .track{display:none}
  .rings{gap:18px}
  .steps{grid-template-columns:1fr}
  .link-cards{grid-template-columns:1fr}
  .link-card{grid-template-columns:1fr}
  .link-card .thumb{aspect-ratio:16/9}
  .cta-band{padding:64px 0}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .brand-name{display:none}
  .brand-name-short{display:inline;font-size:17px;font-weight:700;color:var(--text-invert);white-space:nowrap}
  .stat{flex:1 1 45%}
  .hero h1{font-size:clamp(30px,9vw,40px)}
  .ring{width:96px;height:96px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
}