/* roulang page: index */
:root{
  --bg-base:#0B0C11;
  --bg-panel:#14161F;
  --bg-elev:#1C1F2B;
  --brand:#16E0A6;
  --brand-hover:#2BF0B6;
  --brand-pressed:#0FB985;
  --accent:#FF7A45;
  --special:#FF3D8B;
  --line:#262A36;
  --line-strong:#3A4052;
  --text:#F2F4F8;
  --text-2:#A8AEBD;
  --text-3:#6E7484;
  --ok:#3ED598;
  --warn:#FFC24B;
  --err:#FF5C6C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg-base);
  background-image:
    radial-gradient(960px 520px at 10% -6%, rgba(22,224,166,.14), transparent 70%),
    radial-gradient(760px 440px at 94% 4%, rgba(255,122,69,.11), transparent 70%),
    radial-gradient(700px 520px at 50% 108%, rgba(255,61,139,.07), transparent 72%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:15.5px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand)}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
time,b,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(22,224,166,.3)}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:80px 0}
.sec-tight{padding:56px 0}
.sec-line{border-top:1px solid var(--line)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:6px 12px;border-radius:6px;
  border:1px solid rgba(255,122,69,.5);
  color:var(--accent);
  background:rgba(255,122,69,.08);
}
.eyebrow-brand{
  border-color:rgba(22,224,166,.45);
  color:var(--brand);
  background:rgba(22,224,166,.08);
}
.h2-block{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;flex-wrap:wrap;
}
.h2-title{
  font-size:26px;line-height:1.35;font-weight:700;letter-spacing:-.01em;
  display:flex;align-items:center;gap:12px;
}
.h2-title::before{
  content:"";width:3px;height:18px;border-radius:2px;background:var(--brand);flex:0 0 3px;
}
.h2-sub{color:var(--text-2);font-size:14px;margin-top:6px;max-width:560px}
.link-more{color:var(--text-2);font-size:14px;white-space:nowrap;border-bottom:1px solid var(--line-strong);padding-bottom:2px}
.link-more:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:var(--nav-h);
  background:rgba(11,12,17,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:background .25s ease-out,box-shadow .25s ease-out;
}
.site-header.is-scrolled{background:rgba(11,12,17,.97);box-shadow:0 8px 24px rgba(0,0,0,.5)}
.header-inner{height:100%;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-pressed));
  color:#05130E;font-weight:800;font-size:13px;letter-spacing:.02em;
  display:grid;place-items:center;
  clip-path:polygon(14% 0,100% 0,100% 86%,86% 100%,0 100%,0 14%);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;font-weight:700;color:var(--text);letter-spacing:-.01em}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-primary-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:999px;
  background:linear-gradient(135deg,var(--brand),#12C88F);
  color:#05130E;font-weight:700;font-size:14px;
  transition:transform .2s ease-out,filter .2s ease-out,box-shadow .2s ease-out;
  white-space:nowrap;
}
.btn-primary-pill:hover{color:#05130E;filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary-pill:active{transform:translateY(0)}
.btn-primary-pill svg{width:14px;height:14px}
.btn-glow{animation:tailwind-glow 3s ease-in-out infinite}
@keyframes tailwind-glow{
  0%,100%{box-shadow:0 0 0 0 rgba(22,224,166,.42)}
  50%{box-shadow:0 0 0 16px rgba(22,224,166,0)}
}
.btn-ghost-line{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);
  border:1px solid rgba(255,122,69,.55);color:var(--accent);
  font-size:14px;font-weight:600;
  transition:background .2s ease-out,transform .2s ease-out,color .2s ease-out;
  white-space:nowrap;
}
.btn-ghost-line:hover{background:rgba(255,122,69,.12);color:var(--accent);transform:translateY(-2px)}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line-strong);align-items:center;justify-content:center;
  margin-left:auto;
}
.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{
  position:fixed;inset:0;z-index:80;
  background:rgba(11,12,17,.98);
  padding:24px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s ease-out;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer-close{width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line-strong);font-size:20px;color:var(--text-2)}
.drawer-links{display:flex;flex-direction:column;margin-top:16px}
.drawer-links a{
  font-size:20px;padding:18px 0;border-bottom:1px solid var(--line);color:var(--text);
}
.drawer-links a.is-active{color:var(--brand)}
.drawer-cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;gap:8px;
  min-height:54px;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--brand),#12C88F);color:#05130E;font-weight:700;
}

/* ---------- hero ---------- */
.sec-kv{position:relative;overflow:hidden;min-height:600px;display:flex;align-items:center;padding:72px 0 64px}
.kv-bg{position:absolute;inset:0;z-index:0}
.kv-bg img{width:100%;height:100%;object-fit:cover;object-position:center 30%}
.kv-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(11,12,17,.96) 0%,rgba(11,12,17,.88) 42%,rgba(11,12,17,.45) 74%,rgba(11,12,17,.2) 100%),
    linear-gradient(180deg,rgba(11,12,17,.35) 0%,rgba(11,12,17,0) 32%,rgba(11,12,17,.96) 100%);
}
.kv-grid-lines{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:linear-gradient(90deg,transparent,black 30%,black 70%,transparent);
}
.kv-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .95fr;gap:56px;align-items:center}
.kv-copy{max-width:660px}
.kv-h1{
  font-size:clamp(30px,5.2vw,46px);line-height:1.15;font-weight:700;letter-spacing:-.012em;
  margin:20px 0 18px;color:var(--text);
}
.kv-h1 em{font-style:normal;color:var(--brand)}
.kv-sub{font-size:19px;line-height:1.7;color:var(--text-2);max-width:520px}
.kv-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.kv-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px}
.kv-stats div{display:flex;flex-direction:column;gap:2px}
.kv-stats b{font-size:24px;font-weight:700;color:var(--brand);line-height:1.2}
.kv-stats span{font-size:12.5px;color:var(--text-3)}

.entry-card{
  background:var(--bg-elev);
  border-radius:var(--r-panel);
  padding:24px;
  box-shadow:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
}
.ec-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.ec-title{font-size:17px;font-weight:700}
.ec-live{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--ok)}
.ec-live i{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block;animation:tailwind-node 2.4s ease-in-out infinite}
@keyframes tailwind-node{
  0%,100%{box-shadow:0 0 0 0 rgba(62,213,152,.55)}
  50%{box-shadow:0 0 0 8px rgba(62,213,152,0)}
}
.ec-row{display:flex;align-items:baseline;justify-content:space-between;margin-top:18px;font-size:13px;color:var(--text-2)}
.ec-row b{font-size:22px;color:var(--brand)}
.ec-track{height:10px;border-radius:999px;background:var(--line);margin-top:10px;overflow:hidden}
.ec-fill{height:100%;width:68%;border-radius:999px;background:linear-gradient(135deg,var(--brand),#12C88F)}
.ec-note{font-size:12.5px;color:var(--text-3);margin-top:12px}
.ec-btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:20px;min-height:48px;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--brand),#12C88F);color:#05130E;font-weight:700;font-size:14px;
  transition:transform .2s ease-out,filter .2s ease-out;
}
.ec-btn:hover{color:#05130E;filter:brightness(1.08);transform:translateY(-2px)}
.ec-list{margin-top:18px;border-top:1px solid var(--line);padding-top:14px;display:flex;flex-direction:column;gap:10px}
.ec-list li{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2)}
.ec-list em{font-style:normal;color:var(--text-3);font-size:12px}
.tag-special{
  font-size:11px;font-weight:600;color:var(--special);
  background:rgba(255,61,139,.12);border-radius:6px;padding:2px 7px;
}

/* ---------- trust row ---------- */
.trust-row{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.trust-cell{
  padding:6px 28px;border-left:1px solid var(--line);
}
.trust-cell:first-child{border-left:0;padding-left:0}
.trust-cell b{display:block;font-size:26px;font-weight:700;color:var(--brand);line-height:1.25}
.trust-cell span{font-size:13px;color:var(--text-3)}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step-item{position:relative;padding:26px 22px;border-radius:var(--r-card);background:var(--bg-panel);box-shadow:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);transition:transform .2s ease-out,box-shadow .2s ease-out}
.step-item:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.6), inset 0 0 0 1px var(--brand)}
.step-no{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--brand);color:var(--brand);font-weight:700;font-size:14px;
  background:rgba(22,224,166,.08);margin-bottom:16px;
}
.step-item.is-now .step-no{background:var(--brand);color:#05130E;border-color:var(--brand)}
.step-item h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step-item p{font-size:13.5px;color:var(--text-2);line-height:1.7}
.step-connect{position:absolute;top:44px;right:-14px;width:28px;border-top:1px dashed var(--line-strong);z-index:2}
.step-item:last-child .step-connect{display:none}

/* ---------- reward cards ---------- */
.reward-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.reward-card{
  background:var(--bg-panel);border-radius:var(--r-card);overflow:hidden;
  box-shadow:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
  display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.6), inset 0 0 0 1px var(--brand)}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#16E0A6 0%,#0B0C11 100%)}
.thumb::after{
  content:"hth";position:absolute;inset:0;display:grid;place-items:center;z-index:0;
  color:rgba(5,19,14,.7);font-weight:800;letter-spacing:.1em;font-size:15px;
}
.thumb img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.thumb img.is-broken{opacity:0}
.reward-card:hover .thumb img{transform:scale(1.04)}
.rarity{
  position:absolute;left:12px;top:12px;z-index:2;font-size:11px;font-weight:600;
  padding:3px 8px;border-radius:6px;letter-spacing:.02em;
}
.rarity-special{background:rgba(255,61,139,.9);color:#fff}
.rarity-accent{background:rgba(255,122,69,.9);color:#2A1206}
.rarity-brand{background:rgba(22,224,166,.9);color:#05130E}
.reward-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.reward-body h3{font-size:17px;font-weight:600;margin-bottom:6px}
.reward-body p{font-size:13px;color:var(--text-2);line-height:1.65;flex:1}
.reward-val{font-size:22px;font-weight:700;color:var(--brand);margin:14px 0 4px}
.reward-note{font-size:12.5px;color:var(--text-3)}
.reward-btn{
  margin-top:16px;display:flex;align-items:center;justify-content:center;
  min-height:42px;border-radius:var(--r-btn);font-size:13.5px;font-weight:600;
  border:1px solid var(--line-strong);color:var(--text-2);
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.reward-btn:hover{background:var(--brand);border-color:var(--brand);color:#05130E}

/* ---------- progress ---------- */
.prog-panel{
  background:var(--bg-panel);border-radius:var(--r-panel);padding:32px;
  box-shadow:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
}
.prog-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
.prog-head h3{font-size:19px;font-weight:600}
.prog-head b{font-size:30px;font-weight:700;color:var(--brand)}
.prog-track{height:10px;border-radius:999px;background:var(--line);margin-top:18px;overflow:hidden}
.prog-fill{height:100%;width:68%;border-radius:999px;background:linear-gradient(135deg,var(--brand),#12C88F)}
.prog-nodes{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:24px}
.p-node{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.p-dot{width:16px;height:16px;border-radius:50%;border:2px solid var(--line-strong)}
.p-node.done .p-dot{background:var(--brand);border-color:var(--brand)}
.p-node.now .p-dot{border-color:var(--accent);background:transparent;animation:tailwind-node 2.4s ease-in-out infinite}
.p-node span{font-size:13px;color:var(--text-2)}
.p-node em{font-style:normal;font-size:11.5px;color:var(--text-3)}
.prog-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.prog-foot p{font-size:13.5px;color:var(--text-2);max-width:620px}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.check-item{padding:26px 26px 26px 0;border-bottom:1px solid var(--line);display:flex;gap:14px}
.check-item + .check-item{padding-left:26px;border-left:1px solid var(--line)}
.check-mark{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(22,224,166,.12);color:var(--brand);font-size:13px;font-weight:700;
}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:6px}
.check-item p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ---------- news list ---------- */
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:240px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line);align-items:center}
.news-item .thumb{border-radius:var(--r-btn)}
.news-body{min-width:0}
.tag-brand{
  display:inline-block;font-size:12px;font-weight:600;color:var(--brand);
  background:rgba(22,224,166,.1);border-radius:6px;padding:3px 9px;
}
.news-title{font-size:17px;font-weight:600;margin:10px 0 8px;line-height:1.5}
.news-title a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.news-sum{
  font-size:14px;color:var(--text-2);line-height:1.7;max-width:640px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:12.5px;color:var(--text-3);flex-wrap:wrap}
.meta-sep{color:var(--line-strong)}
.read-more{margin-left:auto;color:var(--text-2)}
.news-item:hover .read-more{color:var(--brand)}
.news-empty{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:44px 24px;text-align:center;color:var(--text-2);
}
.news-empty .ne-icon{
  width:44px;height:44px;margin:0 auto 14px;border-radius:12px;display:grid;place-items:center;
  background:rgba(22,224,166,.1);color:var(--brand);font-weight:700;
}
.news-empty p{font-size:14px}
.news-empty a.news-empty-btn{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  padding:10px 18px;border-radius:var(--r-btn);border:1px solid var(--line-strong);
  font-size:13.5px;color:var(--text-2);
}
.news-empty a.news-empty-btn:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- faq ---------- */
.faq-wrap{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;gap:12px;
  padding:22px 0;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-mark{
  flex:0 0 24px;width:24px;height:24px;border-radius:6px;display:grid;place-items:center;
  background:rgba(22,224,166,.12);color:var(--brand);font-size:12px;font-weight:700;
}
.faq-item summary::after{
  content:"+";margin-left:auto;color:var(--text-3);font-size:20px;line-height:1;
  transition:transform .2s ease-out,color .2s ease-out;
}
.faq-item[open] summary::after{content:"−";color:var(--brand);transform:rotate(180deg)}
.faq-answer{padding:0 0 24px 36px;color:var(--text-2);font-size:14.5px;line-height:1.75;max-width:820px}

/* ---------- final cta ---------- */
.final-cta{
  background:var(--bg-panel);
  border-radius:var(--r-panel);
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
}
.final-cta h2{font-size:24px;font-weight:700;line-height:1.4}
.final-cta p{font-size:14px;color:var(--text-2);margin-top:8px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#0B0C11;padding:64px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand b{font-size:16px;display:block;margin-bottom:10px}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.7;max-width:280px}
.footer-col h4{font-size:14px;color:var(--brand);font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- mobile fixed cta ---------- */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(11,12,17,.97);border-top:1px solid var(--line);
  padding:8px 16px;align-items:center;gap:12px;
}
.mobile-cta .mc-info{flex:1;line-height:1.3}
.mobile-cta .mc-info b{display:block;font-size:13px;color:var(--text)}
.mobile-cta .mc-info span{font-size:11px;color:var(--text-3)}
.mobile-cta .mc-btn{
  min-height:44px;display:inline-flex;align-items:center;gap:6px;
  padding:0 20px;border-radius:999px;background:linear-gradient(135deg,var(--brand),#12C88F);
  color:#05130E;font-weight:700;font-size:14px;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease-out,transform .4s ease-out}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links,.header-actions{display:none}
  .menu-btn{display:flex}
  .kv-inner{grid-template-columns:1fr;gap:36px}
  .sec-kv{min-height:560px}
  .kv-sub{max-width:100%}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .step-connect{display:none}
  .reward-grid{grid-template-columns:repeat(2,1fr)}
  .trust-row{grid-template-columns:repeat(2,1fr);row-gap:24px}
  .trust-cell{padding:6px 20px}
  .trust-cell:nth-child(odd){border-left:0;padding-left:0}
  .check-grid{grid-template-columns:1fr}
  .check-item{padding:22px 0}
  .check-item + .check-item{padding-left:0;border-left:0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:768px){
  body{font-size:15px}
  .sec{padding:44px 0}
  .sec-tight{padding:36px 0}
  .container-x{padding:0 16px}
  .sec-kv{min-height:460px;padding:56px 0 48px}
  .kv-bg img{object-position:center 22%}
  .kv-h1{font-size:clamp(28px,7.4vw,34px)}
  .kv-sub{font-size:16px}
  .kv-stats{gap:26px;margin-top:30px}
  .kv-stats b{font-size:20px}
  .h2-title{font-size:20px}
  .h2-block{margin-bottom:24px}
  .news-item{grid-template-columns:1fr;gap:16px}
  .news-item .thumb{width:100%}
  .read-more{margin-left:0}
  .prog-panel{padding:22px}
  .prog-nodes{grid-template-columns:repeat(2,1fr);gap:18px}
  .final-cta{padding:26px}
  .final-cta h2{font-size:20px}
  .mobile-cta{display:flex}
  .site-footer{margin-top:56px;padding-top:48px;padding-bottom:72px}
  .faq-answer{padding-left:0}
}
@media (max-width:520px){
  .reward-grid{grid-template-columns:1fr}
  .trust-row{grid-template-columns:1fr;row-gap:20px}
  .trust-cell{padding:0;border-left:0}
  .footer-grid{grid-template-columns:1fr}
  .kv-cta{flex-direction:column;align-items:stretch}
  .kv-cta a{justify-content:center}
}

/* roulang page: article */
:root{
  --bg-base:#0B0C11;
  --bg-panel:#14161F;
  --bg-elev:#1C1F2B;
  --brand:#16E0A6;
  --brand-hover:#2BF0B6;
  --brand-press:#0FB985;
  --accent:#FF7A45;
  --special:#FF3D8B;
  --line:#262A36;
  --line-strong:#3A4052;
  --text:#F2F4F8;
  --text-2:#A8AEBD;
  --text-3:#6E7484;
  --on-brand:#05130E;
  --ok:#3ED598;
  --warn:#FFC24B;
  --err:#FF5C6C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --sh-card:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
  --sh-hover:0 16px 40px rgba(0,0,0,.6), inset 0 0 0 1px var(--brand);
  --container:1200px;
  --nav-h:68px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:15.5px;
  line-height:1.8;
  letter-spacing:.005em;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:32px 32px;
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
}
img{ max-width:100%; display:block; border-style:none; }
a{ color:inherit; text-decoration:none; }
button,input,select,textarea{ font:inherit; color:inherit; }
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{ margin:0; line-height:1.3; letter-spacing:-.01em; }
p{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,12,17,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(11,12,17,.97);
  box-shadow:0 12px 28px rgba(0,0,0,.45);
}
.header-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:24px;
}
.logo{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.logo-mark{
  width:38px; height:38px;
  display:grid; place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,#16E0A6,#12C88F);
  color:var(--on-brand);
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  clip-path:polygon(16% 0,100% 0,84% 100%,0 100%);
}
.logo-text{ display:flex; flex-direction:column; line-height:1.15; }
.logo-text b{ font-size:15px; font-weight:700; color:var(--text); letter-spacing:.01em; }
.logo-text span{ font-size:11px; color:var(--text-3); letter-spacing:.06em; }

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  padding:10px 13px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .2s ease, background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{ color:var(--text); background:rgba(255,255,255,.04); }
.nav-link.is-active{ color:var(--brand); }
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:13px; right:13px; bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-actions{ display:flex; align-items:center; gap:10px; flex-shrink:0; }

.btn-primary-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 26px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:700;
  color:var(--on-brand);
  background:linear-gradient(135deg,#16E0A6 0%,#12C88F 100%);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, filter .2s ease, box-shadow .2s ease;
}
.btn-primary-pill svg{ width:16px; height:16px; }
.btn-primary-pill:hover{ transform:translateY(-2px); filter:brightness(1.08); }
.btn-primary-pill:active{ transform:translateY(0); filter:brightness(.96); }
.btn-glow{ animation:glowPulse 3s ease-out infinite; }
@keyframes glowPulse{
  0%,100%{ box-shadow:0 0 0 0 rgba(22,224,166,.35); }
  50%{ box-shadow:0 0 0 10px rgba(22,224,166,0); }
}
.btn-ghost-line{
  display:inline-flex;
  align-items:center;
  padding:11px 20px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  border:1px solid rgba(255,122,69,.55);
  background:rgba(255,122,69,.06);
  transition:background .2s ease, transform .2s ease, border-color .2s ease;
}
.btn-ghost-line:hover{ background:rgba(255,122,69,.14); border-color:var(--accent); transform:translateY(-2px); }

.menu-btn{
  display:none;
  width:44px; height:44px;
  border:1px solid var(--line-strong);
  border-radius:12px;
  background:var(--bg-panel);
  cursor:pointer;
  position:relative;
}
.menu-btn span,
.menu-btn span::before,
.menu-btn span::after{
  position:absolute;
  left:50%; top:50%;
  width:18px; height:2px;
  background:var(--text);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .2s ease, opacity .2s ease;
  content:"";
}
.menu-btn span::before{ transform:translate(-50%,-7px); }
.menu-btn span::after{ transform:translate(-50%,7px); }
body.menu-open .menu-btn span{ background:transparent; }
body.menu-open .menu-btn span::before{ transform:translate(-50%,0) rotate(45deg); }
body.menu-open .menu-btn span::after{ transform:translate(-50%,0) rotate(-45deg); }

/* 阅读进度条 */
.read-progress{
  position:fixed;
  top:0; left:0; right:0;
  height:3px;
  background:transparent;
  z-index:70;
  pointer-events:none;
}
.read-progress i{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,#16E0A6,#2BF0B6);
  box-shadow:0 0 12px rgba(22,224,166,.6);
  transition:width .12s linear;
}

/* ============ 面包屑 ============ */
.crumb-bar{
  padding:22px 0 0;
  position:relative;
  z-index:1;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{ color:var(--text-3); transition:color .2s ease; }
.breadcrumb a:hover{ color:var(--brand); }
.breadcrumb .sep{ color:var(--line-strong); }
.breadcrumb .current{ color:var(--brand); }

/* ============ 文章头部 ============ */
.article-head{
  padding:26px 0 0;
  position:relative;
  z-index:1;
}
.article-head-inner{ max-width:860px; }
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  color:var(--brand);
  background:rgba(22,224,166,.1);
  border:1px solid rgba(22,224,166,.28);
  letter-spacing:.03em;
}
.article-head h1{
  margin-top:16px;
  font-size:clamp(30px,5.2vw,46px);
  font-weight:700;
  line-height:1.15;
  letter-spacing:-.01em;
  color:var(--text);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:16px;
  font-size:13px;
  color:var(--text-3);
}
.meta-row .dot{ color:var(--line-strong); }
.meta-row .hl{ color:var(--text-2); }

.article-cover{
  margin:28px 0 0;
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:21 / 9;
  background:var(--bg-panel);
  position:relative;
}
.article-cover img{
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.article-cover:hover img{ transform:scale(1.02); }
.article-cover::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(11,12,17,.05) 0%, rgba(11,12,17,.55) 100%);
  pointer-events:none;
}
.img-fallback{
  width:100%;
  aspect-ratio:16 / 9;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,#16E0A6 0%,#0B0C11 88%);
  color:#05130E;
  font-weight:800;
  font-size:20px;
  letter-spacing:.12em;
  border-radius:12px;
}
.article-cover .img-fallback{ aspect-ratio:21 / 9; border-radius:0; }

/* ============ 文章布局 ============ */
.article-wrap{
  padding:44px 0 72px;
  position:relative;
  z-index:1;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 260px;
  gap:56px;
  align-items:start;
}
.article-main{ min-width:0; max-width:760px; }

.article-body{
  font-size:15.5px;
  line-height:1.9;
  color:#DDE1EA;
}
.article-body > * + *{ margin-top:1.4em; }
.article-body p{ margin:0 0 1.4em; }
.article-body h2{
  position:relative;
  margin:40px 0 16px;
  padding-left:14px;
  font-size:26px;
  font-weight:700;
  color:var(--text);
  line-height:1.35;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0; top:.42em;
  width:3px; height:16px;
  border-radius:3px;
  background:var(--brand);
}
.article-body h3{
  margin:28px 0 12px;
  font-size:19px;
  font-weight:600;
  color:var(--text);
}
.article-body h4{
  margin:22px 0 10px;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
}
.article-body a{
  color:var(--brand);
  border-bottom:1px solid rgba(22,224,166,.4);
  transition:border-color .2s ease, color .2s ease;
}
.article-body a:hover{ color:var(--brand-hover); border-color:var(--brand-hover); }
.article-body strong{ color:var(--text); font-weight:700; }
.article-body ul,
.article-body ol{ margin:0 0 1.4em; padding-left:0; }
.article-body ul li,
.article-body ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:.6em;
  color:#CBD1DC;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px; top:.72em;
  width:7px; height:7px;
  border-radius:2px;
  background:var(--brand);
  transform:rotate(45deg);
}
.article-body ol{ counter-reset:olc; }
.article-body ol li{ counter-increment:olc; }
.article-body ol li::before{
  content:counter(olc);
  position:absolute;
  left:0; top:.15em;
  width:20px; height:20px;
  display:grid; place-items:center;
  border-radius:6px;
  font-size:11.5px;
  font-weight:700;
  color:var(--brand);
  background:rgba(22,224,166,.1);
  border:1px solid rgba(22,224,166,.3);
}
.article-body blockquote{
  margin:26px 0;
  padding:16px 20px;
  border-left:3px solid var(--brand);
  border-radius:12px;
  background:rgba(22,224,166,.08);
  color:#D6DBE5;
}
.article-body blockquote p:last-child{ margin-bottom:0; }
.article-body img{
  width:100%;
  height:auto;
  border-radius:12px;
  margin:24px 0 8px;
  border:1px solid var(--line);
}
.article-body figure{ margin:24px 0; }
.article-body figcaption{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  margin-top:8px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14.5px;
  background:var(--bg-panel);
  border-radius:12px;
  overflow:hidden;
}
.article-body thead th{
  text-align:left;
  padding:12px 16px;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  background:rgba(22,224,166,.08);
  border-bottom:1px solid var(--line);
}
.article-body tbody td{
  padding:12px 16px;
  color:#CBD1DC;
  border-bottom:1px solid var(--line);
}
.article-body tbody tr:last-child td{ border-bottom:none; }
.article-body code,
.article-body pre{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-variant-numeric:tabular-nums;
}
.article-body code{
  padding:2px 7px;
  border-radius:6px;
  font-size:13.5px;
  color:var(--brand);
  background:rgba(22,224,166,.1);
}
.article-body pre{
  margin:22px 0;
  padding:16px 18px;
  border-radius:12px;
  background:var(--bg-panel);
  border:1px solid var(--line);
  overflow-x:auto;
  font-size:13.5px;
  line-height:1.7;
  color:#D6DBE5;
}
.article-body pre code{ background:none; padding:0; color:inherit; }
.article-body hr{
  border:none;
  height:1px;
  background:var(--line);
  margin:36px 0;
}

.content-empty{
  padding:48px 28px;
  border-radius:var(--r-panel);
  background:var(--bg-panel);
  border:1px solid var(--line);
  text-align:center;
}
.content-empty h2{ font-size:22px; font-weight:700; }
.content-empty p{
  margin:12px 0 22px;
  color:var(--text-2);
  font-size:14.5px;
}

.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-chip{
  padding:5px 12px;
  border-radius:6px;
  font-size:12px;
  font-weight:600;
  color:var(--text-2);
  background:var(--bg-panel);
  border:1px solid var(--line);
  transition:color .2s ease, border-color .2s ease;
}
.tag-chip:hover{ color:var(--brand); border-color:rgba(22,224,166,.45); }

.article-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-top:24px;
}
.article-nav a{
  padding:16px 18px;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  transition:transform .2s ease, border-color .2s ease, color .2s ease;
}
.article-nav a:hover{ transform:translateY(-3px); border-color:var(--brand); color:var(--text); }
.article-nav small{ display:block; font-size:12px; color:var(--text-3); margin-bottom:6px; letter-spacing:.04em; }

/* ============ 侧栏 ============ */
.article-aside{
  position:sticky;
  top:88px;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.aside-card{
  padding:20px;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
}
.aside-card h3{
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.05em;
  margin-bottom:14px;
}
.aside-list li + li{ margin-top:10px; }
.aside-list a{
  display:block;
  font-size:13.5px;
  color:var(--text-2);
  padding-left:14px;
  position:relative;
  transition:color .2s ease, padding-left .2s ease;
}
.aside-list a::before{
  content:"";
  position:absolute;
  left:0; top:.68em;
  width:5px; height:5px;
  border-radius:50%;
  background:var(--line-strong);
  transition:background .2s ease;
}
.aside-list a:hover{ color:var(--brand); padding-left:18px; }
.aside-list a:hover::before{ background:var(--brand); }
.aside-facts{ font-size:13.5px; color:var(--text-2); }
.aside-facts div{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.aside-facts div:last-child{ border-bottom:none; }
.aside-facts b{ color:var(--brand); font-weight:700; }
.to-top{
  width:100%;
  padding:11px 16px;
  border-radius:var(--r-btn);
  font-size:13.5px;
  font-weight:600;
  color:var(--text);
  background:var(--bg-elev);
  border:1px solid var(--line-strong);
  cursor:pointer;
  transition:border-color .2s ease, transform .2s ease;
}
.to-top:hover{ border-color:var(--brand); transform:translateY(-2px); }

/* ============ 相关推荐 ============ */
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:26px;
}
.sec-head h2{
  position:relative;
  padding-left:14px;
  font-size:26px;
  font-weight:700;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0; top:.42em;
  width:3px; height:16px;
  border-radius:3px;
  background:var(--brand);
}
.sec-head p{
  margin-top:8px;
  font-size:14px;
  color:var(--text-2);
  max-width:640px;
}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
  border-bottom:1px solid rgba(22,224,166,.35);
}
.link-more:hover{ color:var(--brand-hover); border-color:var(--brand-hover); }

.rel-sec{
  padding:0 0 72px;
  position:relative;
  z-index:1;
}
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--bg-panel);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  transition:transform .2s ease, box-shadow .2s ease;
}
.rel-card:hover{ transform:translateY(-4px); box-shadow:var(--sh-hover); }
.rel-thumb{
  aspect-ratio:16 / 9;
  overflow:hidden;
  background:var(--bg-elev);
}
.rel-thumb img{
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .25s ease-out;
}
.rel-card:hover .rel-thumb img{ transform:scale(1.04); }
.rel-body{ padding:18px; display:flex; flex-direction:column; gap:10px; flex:1; }
.rel-body h3{
  font-size:17px;
  font-weight:600;
  color:var(--text);
  transition:color .2s ease;
}
.rel-card:hover .rel-body h3{ color:var(--brand); }
.rel-body p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-3);
}
.rel-foot .arrow{ color:var(--brand); font-weight:700; }

/* ============ 最终 CTA ============ */
.sec-cta{ padding:0 0 80px; position:relative; z-index:1; }
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-panel);
  padding:44px 40px;
  background:linear-gradient(135deg,#14161F 0%,#0F1119 100%);
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--sh-card);
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-120px; top:-140px;
  width:420px; height:420px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(22,224,166,.16) 0%, transparent 70%);
  filter:blur(60px);
  pointer-events:none;
}
.cta-panel::after{
  content:"";
  position:absolute;
  left:-100px; bottom:-160px;
  width:360px; height:360px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(255,122,69,.12) 0%, transparent 70%);
  filter:blur(60px);
  pointer-events:none;
}
.cta-copy{ position:relative; z-index:1; }
.cta-copy h2{ font-size:26px; font-weight:700; }
.cta-copy p{ margin-top:10px; font-size:14.5px; color:var(--text-2); max-width:560px; }
.cta-actions{ position:relative; z-index:1; display:flex; gap:12px; flex-wrap:wrap; }

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-base);
  border-top:1px solid var(--line);
  padding:56px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-brand b{
  display:block;
  font-size:16px;
  font-weight:700;
  margin-bottom:10px;
}
.footer-brand p{
  font-size:13.5px;
  color:var(--text-2);
  max-width:260px;
  line-height:1.8;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  margin-bottom:14px;
  letter-spacing:.04em;
}
.footer-col li{
  font-size:14px;
  color:var(--text-2);
  margin-bottom:10px;
  line-height:1.7;
}
.footer-col a{ color:var(--text-2); transition:color .2s ease; }
.footer-col a:hover{ color:var(--brand); }
.footer-bottom{
  border-top:1px solid var(--line);
  padding:18px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 移动端底部固定 CTA ============ */
.mobile-cta{
  display:none;
  position:fixed;
  left:0; right:0; bottom:0;
  z-index:65;
  padding:10px 16px;
  background:rgba(11,12,17,.96);
  border-top:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.mobile-cta .btn-primary-pill{ width:100%; justify-content:center; }
.mobile-cta small{
  display:block;
  text-align:center;
  font-size:11.5px;
  color:var(--text-3);
  margin-top:6px;
}

/* ============ 滚动揭示 ============ */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .4s ease-out, transform .4s ease-out;
}
.reveal.is-in{ opacity:1; transform:none; }

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{ grid-template-columns:minmax(0,1fr) 240px; gap:40px; }
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;
    inset:var(--nav-h) 0 0 0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 16px 96px;
    margin:0;
    background:rgba(11,12,17,.985);
    border-top:1px solid var(--line);
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform .25s ease;
  }
  body.menu-open .nav-links{ transform:translateX(0); }
  .nav-link{
    font-size:20px;
    padding:18px 6px;
    border-radius:0;
    border-bottom:1px solid var(--line);
    color:var(--text);
  }
  .nav-link.is-active::after{ display:none; }
  .nav-link.is-active{ color:var(--brand); }
  .menu-btn{ display:block; margin-left:auto; }
  .header-actions{ display:none; }
  .article-layout{ grid-template-columns:minmax(0,1fr); gap:32px; }
  .article-aside{ position:static; }
  .article-main{ max-width:none; }
  .rel-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:26px; }
  .cta-panel{ flex-direction:column; align-items:flex-start; padding:34px 26px; }
}
@media (max-width:767px){
  :root{ --nav-h:60px; }
  .container-x{ padding:0 16px; }
  .logo-text span{ display:none; }
  .logo-text b{ font-size:14px; }
  .article-wrap{ padding:32px 0 56px; }
  .article-head h1{ font-size:30px; }
  .article-body{ font-size:15px; line-height:1.85; }
  .article-body h2{ font-size:20px; margin-top:32px; }
  .article-body h3{ font-size:17px; }
  .article-nav{ grid-template-columns:1fr; }
  .rel-grid{ grid-template-columns:1fr; }
  .sec-head{ flex-direction:column; align-items:flex-start; }
  .sec-head h2{ font-size:20px; }
  .rel-sec{ padding-bottom:52px; }
  .sec-cta{ padding-bottom:56px; }
  .cta-copy h2{ font-size:20px; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:22px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; gap:6px; }
  .mobile-cta{ display:block; }
  body{ padding-bottom:0; }
}
@media (max-width:520px){
  .article-cover{ aspect-ratio:16 / 9; border-radius:var(--r-card); }
  .footer-grid{ grid-template-columns:1fr; }
  .cta-actions{ width:100%; }
  .cta-actions .btn-primary-pill,
  .cta-actions .btn-ghost-line{ width:100%; justify-content:center; }
}
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  .reveal{ opacity:1; transform:none; }
}

/* roulang page: category1 */
:root{
  --bg-base:#0B0C11;
  --bg-panel:#14161F;
  --bg-elev:#1C1F2B;
  --brand:#16E0A6;
  --brand-hover:#2BF0B6;
  --brand-pressed:#0FB985;
  --accent:#FF7A45;
  --special:#FF3D8B;
  --line:#262A36;
  --line-strong:#3A4052;
  --text:#F2F4F8;
  --text-2:#A8AEBD;
  --text-3:#6E7484;
  --ok:#3ED598;
  --warn:#FFC24B;
  --err:#FF5C6C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-badge:6px;
  --r-input:10px;
  --sh-card:0 10px 28px rgba(0,0,0,.45);
  --sh-hover:0 16px 40px rgba(0,0,0,.6);
  --sec-y:80px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:15.5px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(680px 420px at 8% -8%, rgba(22,224,166,.12), transparent 68%),
    radial-gradient(760px 480px at 96% 4%, rgba(255,122,69,.09), transparent 70%);
}
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(--brand);outline-offset:2px;border-radius:4px;}
.num,.tabular{font-variant-numeric:tabular-nums;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:68px;
  background:rgba(11,12,17,.92);
  border-bottom:1px solid var(--line);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(11,12,17,.97);
  box-shadow:0 8px 24px rgba(0,0,0,.5);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.logo{
  display:flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
}
.logo-mark{
  width:38px;
  height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#16E0A6,#12C88F);
  color:#05130E;
  font-weight:800;
  font-size:14px;
  letter-spacing:.5px;
  border-radius:10px;
  clip-path:polygon(0 0,100% 0,100% 66%,66% 100%,0 100%);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-size:15px;font-weight:700;color:var(--text);white-space:nowrap;}
.logo-text span{font-size:11.5px;color:var(--text-3);letter-spacing:.4px;}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:8px 13px;
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.btn-ghost-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 20px;
  border:1px solid rgba(255,122,69,.55);
  color:var(--accent);
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost-line:hover{
  background:rgba(255,122,69,.14);
  border-color:var(--accent);
  transform:translateY(-2px);
}
.btn-ghost-line:active{transform:translateY(0);}
.btn-primary-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  background:linear-gradient(135deg,#16E0A6,#12C88F);
  color:#05130E;
  font-size:14.5px;
  font-weight:700;
  border-radius:999px;
  transition:filter .2s ease,transform .2s ease;
}
.btn-primary-pill svg{width:16px;height:16px;flex:0 0 16px;}
.btn-primary-pill:hover{filter:brightness(1.08);transform:translateY(-2px);}
.btn-primary-pill:active{transform:translateY(0);filter:brightness(.96);}
.btn-glow{animation:glowPulse 3s ease-in-out infinite;}
@keyframes glowPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(22,224,166,.42);}
  50%{box-shadow:0 0 0 14px rgba(22,224,166,0);}
}
.menu-btn{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--line);
  margin-left:auto;
}
.menu-btn span{
  position:relative;
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:background .2s ease;
}
.menu-btn span::before,
.menu-btn span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .2s ease;
}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(11,12,17,.98);
  transform:translateY(-100%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  padding-bottom:92px;
}
.drawer.is-open{transform:translateY(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:60px;
  padding:0 20px;
  border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.drawer-head b{font-size:15px;color:var(--text);}
.drawer-close{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
  color:var(--text-2);
  border-radius:10px;
}
.drawer-close:hover{color:var(--brand);}
.drawer-links{display:flex;flex-direction:column;padding:6px 20px 0;}
.drawer-links a{
  font-size:20px;
  color:var(--text-2);
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--brand);}
.drawer-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  padding:12px 20px;
  background:rgba(11,12,17,.98);
  border-top:1px solid var(--line);
}
.drawer-cta .btn-primary-pill{width:100%;justify-content:center;}

/* ---------- category nav ---------- */
.cat-nav{
  position:sticky;
  top:68px;
  z-index:50;
  background:rgba(11,12,17,.93);
  border-bottom:1px solid var(--line);
}
.cat-nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:12px 24px;
  display:flex;
  gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
}
.cat-nav-inner::-webkit-scrollbar{display:none;}
.cat-tab{
  flex:0 0 auto;
  padding:8px 16px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.cat-tab:hover{color:var(--text);border-color:var(--line-strong);}
.cat-tab.is-active{
  color:var(--brand);
  border-color:rgba(22,224,166,.5);
  background:rgba(22,224,166,.12);
}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:linear-gradient(135deg,#0B0C11 0%,#14161F 60%,#0B0C11 100%);
}
.cat-hero-img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 38%;
  opacity:.85;
}
.cat-hero-mask{
  position:absolute;
  inset:0;
  background:
    linear-gradient(90deg,rgba(11,12,17,.94) 0%,rgba(11,12,17,.72) 46%,rgba(11,12,17,.35) 100%),
    linear-gradient(0deg,rgba(11,12,17,1) 0%,rgba(11,12,17,0) 58%);
}
.cat-hero-glow{
  position:absolute;
  right:-80px;top:-60px;
  width:420px;height:320px;
  background:radial-gradient(circle,rgba(22,224,166,.16),transparent 70%);
  filter:blur(120px);
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;
  z-index:2;
  padding-top:64px;
  padding-bottom:44px;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:14px;
}
.breadcrumb a{color:var(--text-3);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span{color:var(--line-strong);}
.breadcrumb em{font-style:normal;color:var(--brand);}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border:1px solid rgba(255,122,69,.5);
  border-radius:999px;
  background:rgba(255,122,69,.12);
  color:var(--accent);
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
  margin-bottom:16px;
}
.cat-hero h1{
  font-size:clamp(30px,4.6vw,42px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:820px;
  margin-bottom:16px;
}
.cat-hero-lead{
  max-width:640px;
  font-size:17px;
  color:var(--text-2);
  line-height:1.75;
}

/* ---------- sections ---------- */
.sec{padding:var(--sec-y) 0;}
.sec-tight{padding-top:56px;}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head h2{
  position:relative;
  font-size:26px;
  font-weight:700;
  line-height:1.35;
  padding-left:14px;
  margin-bottom:12px;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:3px;height:16px;
  border-radius:3px;
  background:var(--brand);
}
.sec-head p{color:var(--text-2);font-size:15px;max-width:640px;}

/* ---------- card grid ---------- */
.card-grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.cat-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-panel);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card), inset 0 0 0 1px rgba(255,255,255,.05);
  overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.cat-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover), inset 0 0 0 1px var(--brand);
}
.media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,#1C1F2B,#0B0C11);
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .2s ease-out;
}
.cat-card:hover .media img{transform:scale(1.04);}
.media.is-fallback img{display:none;}
.media.is-fallback::after{
  content:"hth";
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  font-weight:800;
  letter-spacing:2px;
  color:rgba(22,224,166,.6);
  background:linear-gradient(135deg,#14161F,#0B0C11);
}
.cat-card-badge{
  position:absolute;
  top:12px;left:12px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 9px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:600;
  color:var(--accent);
  background:rgba(255,122,69,.16);
  border:1px solid rgba(255,122,69,.36);
}
.cat-card-badge.is-special{
  color:var(--special);
  background:rgba(255,61,139,.14);
  border-color:rgba(255,61,139,.38);
}
.cat-card-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:18px 20px 20px;
  flex:1 1 auto;
}
.cat-card-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
}
.cat-card-body p{
  color:var(--text-2);
  font-size:14px;
  line-height:1.75;
  max-width:640px;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:auto;
  padding-top:6px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 9px;
  border:1px solid var(--line);
  border-radius:var(--r-badge);
  font-size:12px;
  color:var(--text-3);
  transition:color .2s ease,border-color .2s ease;
}
.cat-card:hover .tag{color:var(--text-2);border-color:var(--line-strong);}

/* ---------- scenario ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.scene-card{
  padding:22px 20px;
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color .2s ease,transform .2s ease;
}
.scene-card:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.scene-icon{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(22,224,166,.45);
  border-radius:12px;
  color:var(--brand);
  margin-bottom:14px;
}
.scene-icon svg{width:20px;height:20px;}
.scene-card h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- key list ---------- */
.key-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:48px;
  border-top:1px solid var(--line);
}
.key-item{
  display:flex;
  gap:14px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.key-num{
  flex:0 0 28px;
  width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(22,224,166,.55);
  border-radius:8px;
  color:var(--brand);
  font-size:12.5px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  margin-top:2px;
}
.key-item h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.key-item p{font-size:14px;color:var(--text-2);line-height:1.75;}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px 0;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  line-height:1.7;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-q{
  flex:0 0 24px;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  border-radius:6px;
  background:rgba(22,224,166,.14);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  margin-top:3px;
}
.faq-toggle{
  margin-left:auto;
  flex:0 0 24px;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-3);
  font-size:18px;
  line-height:1;
  transition:transform .2s ease,color .2s ease;
  margin-top:3px;
}
.faq-item summary:hover .faq-toggle{color:var(--brand);}
.faq-item[open] .faq-toggle{transform:rotate(45deg);color:var(--brand);}
.faq-a{
  padding:0 0 20px 38px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
  max-width:760px;
}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:36px 34px;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-card);
}
.cta-band h2{font-size:24px;font-weight:700;margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.cta-link{
  font-size:14.5px;
  color:var(--brand);
  border-bottom:3px solid transparent;
  transition:border-color .2s ease;
}
.cta-link:hover{border-color:var(--brand);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--sec-y);
  background:var(--bg-base);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  padding:56px 0 34px;
}
.footer-brand b{font-size:17px;font-weight:700;color:var(--text);}
.footer-brand p{margin-top:10px;color:var(--text-3);font-size:14px;line-height:1.7;max-width:280px;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  margin-bottom:14px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:18px 0 28px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- mobile fixed cta ---------- */
.mobile-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  display:none;
  align-items:center;
  gap:12px;
  padding:10px 16px;
  background:rgba(11,12,17,.97);
  border-top:1px solid var(--line);
}
.mobile-cta-text{font-size:12px;color:var(--text-3);line-height:1.4;}
.mobile-cta-text b{display:block;color:var(--brand);font-size:13px;font-weight:600;}
.mobile-cta .btn-primary-pill{flex:0 0 auto;height:44px;padding:0 20px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease-out,transform .4s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .card-grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:1023px){
  .nav-links,.header-actions{display:none;}
  .menu-btn{display:flex;}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .cat-hero{min-height:320px;}
  .sec{--sec-y:60px;}
}
@media (min-width:1024px){
  .drawer{display:none;}
}
@media (max-width:767px){
  .container-x{padding:0 16px;}
  .cat-nav-inner{padding:10px 16px;}
  .cat-hero-img{object-position:66% 40%;}
  .cat-hero{min-height:300px;}
  .cat-hero-inner{padding-top:52px;padding-bottom:32px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero-lead{font-size:15.5px;}
  .sec{--sec-y:44px;}
  .sec-head h2{font-size:20px;}
  .sec-head h2::before{top:7px;}
  .card-grid-3{grid-template-columns:1fr;gap:18px;}
  .scene-grid{grid-template-columns:1fr;gap:16px;}
  .key-list{grid-template-columns:1fr;column-gap:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 20px;}
  .cta-band h2{font-size:20px;}
  .cta-actions{width:100%;flex-wrap:wrap;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:40px 0 26px;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .mobile-cta{display:flex;}
  body{padding-bottom:76px;}
  .faq-a{padding-left:0;}
  .site-footer{margin-top:44px;}
}
@media (max-width:520px){
  .logo-text span{display:none;}
  .logo-text b{font-size:14px;}
  .cat-hero-lead{font-size:15px;}
}

/* roulang page: category2 */
:root{
    --bg-base:#0B0C11;
    --bg-panel:#14161F;
    --bg-elev:#1C1F2B;
    --brand:#16E0A6;
    --brand-hover:#2BF0B6;
    --brand-pressed:#0FB985;
    --accent:#FF7A45;
    --special:#FF3D8B;
    --line:#262A36;
    --line-strong:#3A4052;
    --text:#F2F4F8;
    --text-2:#A8AEBD;
    --text-3:#6E7484;
    --ok:#3ED598;
    --warn:#FFC24B;
    --err:#FF5C6C;
    --r-card:16px;
    --r-panel:20px;
    --r-btn:12px;
    --r-badge:6px;
    --r-input:10px;
    --shadow-card:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
    --shadow-card-hover:0 16px 40px rgba(0,0,0,.6), inset 0 0 0 1px var(--brand);
    --header-h:68px;
  }

  *,*::before,*::after{ box-sizing:border-box; }

  html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

  body{
    margin:0;
    background-color:var(--bg-base);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:15.5px;
    line-height:1.8;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:32px 32px;
  }

  .glow-field{
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    overflow:hidden;
  }
  .glow-field span{
    position:absolute;
    border-radius:50%;
    filter:blur(120px);
  }
  .glow-field .g1{ width:520px; height:520px; background:rgba(22,224,166,.16); top:-160px; left:-120px; }
  .glow-field .g2{ width:440px; height:440px; background:rgba(255,122,69,.12); top:38%; right:-160px; }
  .glow-field .g3{ width:380px; height:380px; background:rgba(22,224,166,.10); bottom:-120px; left:34%; }

  img{ display:block; max-width:100%; border:0; }
  a{ color:inherit; text-decoration:none; }
  a.link-inline:hover{ color:var(--brand); text-decoration:underline; text-underline-offset:3px; text-decoration-thickness:1px; }
  button{ font-family:inherit; border:0; background:none; cursor:pointer; color: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;
  }

  .container-x{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
    position:relative;
    z-index:1;
  }

  .sec{ padding:80px 0; position:relative; z-index:1; }
  .sec-tight{ padding:56px 0; }

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    height:var(--header-h);
    background:rgba(11,12,17,.92);
    border-bottom:1px solid var(--line);
    transition:background-color .25s ease, backdrop-filter .25s ease;
  }
  .site-header.is-scrolled{ background:rgba(11,12,17,.97); backdrop-filter:blur(8px); }
  .header-inner{
    height:100%;
    display:flex;
    align-items:center;
    gap:20px;
  }
  .logo{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
  .logo-mark{
    width:42px; height:42px;
    display:grid; place-items:center;
    background:linear-gradient(135deg,#16E0A6 0%,#12C88F 100%);
    color:#05130E;
    font-weight:800;
    font-size:15px;
    letter-spacing:.02em;
    border-radius:12px;
    clip-path:polygon(14% 0,100% 0,100% 86%,86% 100%,0 100%,0 14%);
  }
  .logo-text{ display:flex; flex-direction:column; line-height:1.2; }
  .logo-text b{ font-size:16px; font-weight:700; letter-spacing:-.01em; }
  .logo-text span{ font-size:11.5px; color:var(--text-3); letter-spacing:.04em; margin-top:2px; }

  .nav-links{ display:flex; align-items:center; gap:4px; margin-left:auto; }
  .nav-link{
    position:relative;
    padding:8px 12px;
    font-size:15px;
    color:var(--text-2);
    transition:color .2s ease;
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:12px; right:12px; bottom:0;
    height:2px;
    border-radius:2px;
    background:var(--brand);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .2s ease-out;
  }
  .nav-link:hover{ color:var(--text); }
  .nav-link:hover::after{ transform:scaleX(1); }
  .nav-link.is-active{ color:var(--brand); font-weight:600; }
  .nav-link.is-active::after{ transform:scaleX(1); }

  .header-actions{ display:flex; align-items:center; gap:12px; flex-shrink:0; }

  .btn-primary-pill{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:12px 24px;
    border-radius:999px;
    background:linear-gradient(135deg,#16E0A6 0%,#12C88F 100%);
    color:#05130E;
    font-size:14.5px;
    font-weight:700;
    letter-spacing:.01em;
    transition:transform .2s ease-out, filter .2s ease-out, box-shadow .2s ease-out;
    box-shadow:0 8px 22px rgba(22,224,166,.22);
  }
  .btn-primary-pill svg{ width:16px; height:16px; transition:transform .2s ease-out; }
  .btn-primary-pill:hover{ filter:brightness(1.08); transform:translateY(-2px); }
  .btn-primary-pill:hover svg{ transform:translateX(3px); }
  .btn-primary-pill:active{ transform:translateY(0); filter:brightness(.96); }
  .btn-glow{ animation:glowPulse 3s ease-in-out infinite; }

  .btn-ghost-line{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:10px 18px;
    border-radius:999px;
    border:1px solid rgba(255,122,69,.55);
    color:var(--accent);
    font-size:14px;
    font-weight:600;
    transition:background-color .2s ease-out, transform .2s ease-out, border-color .2s ease-out;
  }
  .btn-ghost-line:hover{ background:rgba(255,122,69,.12); border-color:var(--accent); transform:translateY(-2px); }
  .btn-ghost-line:active{ transform:translateY(0); }

  .menu-btn{
    display:none;
    width:44px; height:44px;
    align-items:center;
    justify-content:center;
    border-radius:10px;
    border:1px solid var(--line);
    margin-left:auto;
  }
  .menu-btn span{
    display:block;
    width:20px; height:2px;
    background:var(--text);
    border-radius:2px;
    position:relative;
    transition:background-color .2s ease;
  }
  .menu-btn span::before,
  .menu-btn span::after{
    content:"";
    position:absolute;
    left:0;
    width:20px; height:2px;
    background:var(--text);
    border-radius:2px;
    transition:transform .2s ease;
  }
  .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); }

  .mobile-drawer{
    position:fixed;
    inset:var(--header-h) 0 0 0;
    background:rgba(11,12,17,.98);
    z-index:79;
    padding:20px 24px 120px;
    transform:translateX(100%);
    transition:transform .28s ease-out;
    overflow-y:auto;
    display:none;
  }
  .mobile-drawer.is-open{ transform:translateX(0); }
  .mobile-drawer a.d-link{
    display:block;
    padding:18px 4px;
    font-size:20px;
    color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a.d-link.is-active{ color:var(--brand); }
  .mobile-drawer .d-cta{
    margin-top:28px;
    display:flex;
    justify-content:center;
    width:100%;
  }
  .mobile-bottom-cta{
    position:fixed;
    left:0; right:0; bottom:0;
    z-index:78;
    display:none;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    height:56px;
    padding:0 16px;
    background:rgba(20,22,31,.97);
    border-top:1px solid var(--line);
  }
  .mobile-bottom-cta .mb-text{ font-size:12.5px; color:var(--text-2); line-height:1.35; }
  .mobile-bottom-cta .mb-text b{ display:block; color:var(--brand); font-size:13.5px; }

  /* ---------- Breadcrumb ---------- */
  .crumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--text-3);
    margin-bottom:12px;
    flex-wrap:wrap;
  }
  .crumb a:hover{ color:var(--brand); }
  .crumb .sep{ color:var(--line-strong); }
  .crumb .cur{ color:var(--brand); }

  /* ---------- Category tabs ---------- */
  .cat-tabs{
    position:sticky;
    top:var(--header-h);
    z-index:70;
    background:rgba(11,12,17,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(6px);
  }
  .cat-tabs-inner{
    display:flex;
    align-items:center;
    gap:10px;
    padding:12px 24px;
    max-width:1200px;
    margin:0 auto;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .cat-tabs-inner::-webkit-scrollbar{ display:none; }
  .cat-tab{
    flex:0 0 auto;
    padding:8px 16px;
    font-size:13.5px;
    border-radius:999px;
    border:1px solid var(--line);
    color:var(--text-2);
    background:var(--bg-panel);
    transition:all .2s ease-out;
    white-space:nowrap;
  }
  .cat-tab:hover{ border-color:var(--line-strong); color:var(--text); }
  .cat-tab.is-current{
    background:rgba(22,224,166,.12);
    border-color:rgba(22,224,166,.5);
    color:var(--brand);
    font-weight:600;
  }

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;
    padding:72px 0 64px;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .cat-hero-bg{
    position:absolute;
    inset:0;
    z-index:0;
  }
  .cat-hero-bg img{
    width:100%; height:100%;
    object-fit:cover;
    object-position:center 35%;
    opacity:.30;
  }
  .cat-hero-bg::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      linear-gradient(90deg, rgba(11,12,17,.96) 0%, rgba(11,12,17,.72) 52%, rgba(11,12,17,.94) 100%),
      linear-gradient(180deg, rgba(11,12,17,.55) 0%, rgba(11,12,17,.99) 100%);
  }
  .hero-grid{
    display:grid;
    grid-template-columns:7fr 5fr;
    gap:56px;
    align-items:end;
    position:relative;
    z-index:1;
  }
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 14px;
    border-radius:999px;
    border:1px solid rgba(255,122,69,.55);
    color:var(--accent);
    font-size:12px;
    font-weight:600;
    background:rgba(255,122,69,.08);
    margin-bottom:18px;
  }
  .hero-badge i{
    width:6px; height:6px; border-radius:50%;
    background:var(--accent);
    animation:dotPulse 2.4s ease-in-out infinite;
  }
  h1.hero-title{
    font-size:clamp(30px,5.2vw,46px);
    line-height:1.15;
    font-weight:700;
    letter-spacing:-.01em;
    margin-bottom:18px;
  }
  h1.hero-title em{ font-style:normal; color:var(--brand); }
  .hero-sub{
    font-size:17px;
    line-height:1.72;
    color:var(--text-2);
    max-width:640px;
    margin-bottom:24px;
  }
  .hero-stats{
    display:flex;
    flex-wrap:wrap;
    gap:36px;
    margin-top:8px;
  }
  .hero-stat b{
    display:block;
    font-size:24px;
    font-weight:700;
    color:var(--brand);
    line-height:1.2;
    letter-spacing:-.01em;
  }
  .hero-stat span{ font-size:12.5px; color:var(--text-3); }

  .hero-aside{
    background:var(--bg-panel);
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    padding:24px;
    box-shadow:var(--shadow-card);
  }
  .hero-aside h2{
    font-size:16px;
    font-weight:700;
    color:var(--text);
    margin-bottom:6px;
  }
  .hero-aside p.lead{
    font-size:13.5px;
    color:var(--text-2);
    line-height:1.75;
    margin-bottom:18px;
  }
  .aside-list{ display:grid; gap:12px; }
  .aside-list li{
    display:flex;
    gap:10px;
    font-size:13.5px;
    color:var(--text-2);
    line-height:1.65;
  }
  .aside-list li::before{
    content:"";
    flex:0 0 4px;
    width:4px; height:4px;
    margin-top:9px;
    border-radius:1px;
    background:var(--brand);
  }
  .aside-foot{
    margin-top:20px;
    padding-top:16px;
    border-top:1px dashed var(--line);
    font-size:12.5px;
    color:var(--text-3);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
  }
  .aside-foot b{ color:var(--brand); font-size:15px; }

  /* ---------- Section heading ---------- */
  .sec-head{ margin-bottom:40px; }
  .sec-head h2{
    font-size:26px;
    font-weight:700;
    line-height:1.3;
    letter-spacing:-.01em;
    display:flex;
    align-items:center;
    gap:12px;
  }
  .sec-head h2::before{
    content:"";
    width:3px; height:16px;
    border-radius:2px;
    background:var(--brand);
    flex:0 0 3px;
  }
  .sec-head p{
    margin-top:12px;
    font-size:14.5px;
    color:var(--text-2);
    max-width:720px;
    line-height:1.75;
  }

  /* ---------- Timeline ---------- */
  .timeline{
    position:relative;
    padding-left:0;
  }
  .timeline::before{
    content:"";
    position:absolute;
    left:19px;
    top:14px;
    bottom:24px;
    width:1px;
    background:linear-gradient(180deg, var(--brand) 0%, rgba(22,224,166,.35) 62%, rgba(22,224,166,.04) 100%);
  }
  .tl-item{
    position:relative;
    padding-left:66px;
    padding-bottom:48px;
  }
  .tl-item:last-child{ padding-bottom:0; }
  .tl-dot{
    position:absolute;
    left:6px;
    top:2px;
    width:27px; height:27px;
    border-radius:50%;
    display:grid;
    place-items:center;
    font-size:12px;
    font-weight:700;
    background:var(--bg-panel);
    border:1px solid var(--line-strong);
    color:var(--text-3);
    z-index:1;
  }
  .tl-dot.is-done{
    background:var(--brand);
    border-color:var(--brand);
    color:#05130E;
  }
  .tl-dot.is-now{
    border:1px solid var(--accent);
    color:var(--accent);
    background:var(--bg-base);
    animation:dotPulse 2.4s ease-in-out infinite;
  }
  .tl-card{
    background:var(--bg-panel);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px 26px;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
  }
  .tl-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-card-hover);
    border-color:rgba(22,224,166,.4);
  }
  .tl-card h3{
    font-size:19px;
    font-weight:600;
    line-height:1.4;
    margin-bottom:10px;
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:10px;
  }
  .tl-tag{
    font-size:11.5px;
    font-weight:600;
    padding:3px 9px;
    border-radius:var(--r-badge);
    background:rgba(22,224,166,.12);
    color:var(--brand);
  }
  .tl-tag.orange{ background:rgba(255,122,69,.14); color:var(--accent); }
  .tl-tag.magenta{ background:rgba(255,61,139,.14); color:var(--special); }
  .tl-card ul.notes{ display:grid; gap:8px; margin-top:4px; }
  .tl-card ul.notes li{
    position:relative;
    padding-left:18px;
    font-size:14.5px;
    color:var(--text-2);
    line-height:1.78;
  }
  .tl-card ul.notes li::before{
    content:"";
    position:absolute;
    left:0; top:11px;
    width:6px; height:6px;
    border-radius:1px;
    background:rgba(22,224,166,.6);
  }
  .tl-media{
    margin-top:20px;
    border-radius:12px;
    overflow:hidden;
    aspect-ratio:16/9;
    position:relative;
    background:linear-gradient(135deg,#16E0A6 0%,#14161F 100%);
  }
  .tl-media img{
    width:100%; height:100%;
    object-fit:cover;
    transition:transform .35s ease-out;
  }
  .tl-card:hover .tl-media img{ transform:scale(1.04); }
  .media-fallback.is-broken::after{
    content:"hth";
    position:absolute;
    inset:0;
    display:grid;
    place-items:center;
    font-size:26px;
    font-weight:800;
    letter-spacing:.08em;
    color:rgba(5,19,14,.85);
    background:linear-gradient(135deg,#16E0A6 0%,#14161F 100%);
  }

  /* ---------- Progress module ---------- */
  .progress-panel{
    background:var(--bg-panel);
    border:1px solid var(--line);
    border-radius:var(--r-panel);
    padding:32px;
    box-shadow:var(--shadow-card);
  }
  .progress-top{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
    margin-bottom:22px;
  }
  .progress-top h3{ font-size:19px; font-weight:600; }
  .progress-top p{ font-size:13.5px; color:var(--text-3); margin-top:6px; }
  .progress-num{
    font-size:30px;
    font-weight:700;
    color:var(--brand);
    line-height:1;
    letter-spacing:-.02em;
  }
  .progress-num small{ font-size:14px; color:var(--text-3); font-weight:500; margin-left:4px; }
  .bar-track{
    height:10px;
    border-radius:999px;
    background:var(--line);
    overflow:hidden;
  }
  .bar-fill{
    height:100%;
    width:0;
    border-radius:999px;
    background:linear-gradient(90deg,#16E0A6 0%,#12C88F 100%);
    transition:width .8s ease-out;
  }
  .bar-meta{
    display:flex;
    justify-content:space-between;
    gap:16px;
    font-size:12.5px;
    color:var(--text-3);
    margin-top:10px;
    flex-wrap:wrap;
  }
  .stage-row{
    display:grid;
    grid-template-columns:repeat(5,1fr);
    gap:16px;
    margin-top:30px;
    padding-top:26px;
    border-top:1px solid var(--line);
  }
  .stage{ display:flex; flex-direction:column; gap:10px; }
  .stage-mark{
    width:14px; height:14px;
    border-radius:50%;
    border:1px solid var(--line-strong);
    background:var(--bg-base);
  }
  .stage.is-done .stage-mark{ background:var(--brand); border-color:var(--brand); }
  .stage.is-now .stage-mark{ border:1px solid var(--accent); background:var(--bg-base); animation:dotPulse 2.4s ease-in-out infinite; }
  .stage b{ font-size:14px; font-weight:600; }
  .stage span{ font-size:12.5px; color:var(--text-3); }
  .progress-cta{
    margin-top:30px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    padding:22px 24px;
    border-radius:var(--r-card);
    background:var(--bg-elev);
    border:1px solid var(--line);
  }
  .progress-cta p{ font-size:13.5px; color:var(--text-2); }
  .progress-cta p b{ color:var(--brand); }

  /* ---------- Rhythm list ---------- */
  .rhythm-list{ border-top:1px solid var(--line); }
  .rhythm-row{
    display:grid;
    grid-template-columns:120px 1fr 200px 120px;
    gap:24px;
    align-items:center;
    padding:24px 4px;
    border-bottom:1px solid var(--line);
    transition:background-color .2s ease-out, padding-left .2s ease-out;
  }
  .rhythm-row:hover{ background:rgba(22,224,166,.04); padding-left:12px; }
  .rhythm-row .r-tag{
    justify-self:start;
    font-size:11.5px;
    font-weight:600;
    padding:4px 10px;
    border-radius:var(--r-badge);
    background:rgba(22,224,166,.12);
    color:var(--brand);
  }
  .rhythm-row .r-tag.orange{ background:rgba(255,122,69,.14); color:var(--accent); }
  .rhythm-row .r-tag.magenta{ background:rgba(255,61,139,.14); color:var(--special); }
  .rhythm-row .r-main b{ display:block; font-size:16px; font-weight:600; margin-bottom:4px; }
  .rhythm-row .r-main span{ font-size:13.5px; color:var(--text-2); line-height:1.7; }
  .rhythm-row .r-num{ font-size:14px; color:var(--text-2); }
  .rhythm-row .r-num b{ color:var(--brand); font-size:17px; font-weight:700; }
  .rhythm-row .r-link{ font-size:13.5px; color:var(--text-2); justify-self:end; display:inline-flex; align-items:center; gap:6px; }
  .rhythm-row .r-link:hover{ color:var(--brand); }
  .rhythm-row .r-link svg{ width:14px; height:14px; transition:transform .2s ease-out; }
  .rhythm-row .r-link:hover svg{ transform:translateX(3px); }

  /* ---------- FAQ ---------- */
  .faq-list{ border-top:1px solid var(--line); }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-q{
    width:100%;
    display:flex;
    align-items:flex-start;
    gap:14px;
    text-align:left;
    padding:22px 0;
    font-size:16px;
    font-weight:600;
    line-height:1.7;
    color:var(--text);
    transition:color .2s ease-out;
  }
  .faq-q:hover{ color:var(--brand); }
  .faq-q .q-mark{
    flex:0 0 24px;
    width:24px; height:24px;
    margin-top:2px;
    display:grid;
    place-items:center;
    border-radius:6px;
    background:rgba(22,224,166,.12);
    color:var(--brand);
    font-size:14px;
    font-weight:700;
  }
  .faq-q .q-toggle{
    margin-left:auto;
    flex:0 0 20px;
    font-size:20px;
    font-weight:400;
    color:var(--text-3);
    line-height:1;
    transition:transform .2s ease-out, color .2s ease-out;
  }
  .faq-item.is-open .faq-q .q-toggle{ transform:rotate(45deg); color:var(--brand); }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .28s ease-out;
  }
  .faq-a p{
    padding:0 0 24px 38px;
    font-size:14.5px;
    line-height:1.8;
    color:var(--text-2);
    max-width:760px;
  }

  /* ---------- CTA band ---------- */
  .cta-band{
    position:relative;
    background:var(--bg-panel);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    overflow:hidden;
    padding:64px 0;
  }
  .cta-band .cta-glow{
    position:absolute;
    width:520px; height:520px;
    border-radius:50%;
    filter:blur(120px);
    background:rgba(22,224,166,.14);
    top:-260px; right:-120px;
  }
  .cta-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:36px;
    flex-wrap:wrap;
    position:relative;
    z-index:1;
  }
  .cta-inner h2{ font-size:24px; font-weight:700; line-height:1.4; letter-spacing:-.01em; }
  .cta-inner p{ margin-top:10px; font-size:14.5px; color:var(--text-2); max-width:560px; }
  .cta-actions{ display:flex; align-items:center; gap:14px; flex-wrap:wrap; }
  .btn-outline-brand{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:12px 24px;
    border-radius:999px;
    border:1px solid rgba(22,224,166,.6);
    color:var(--brand);
    font-size:14.5px;
    font-weight:600;
    transition:background-color .2s ease-out, transform .2s ease-out;
  }
  .btn-outline-brand:hover{ background:rgba(22,224,166,.12); transform:translateY(-2px); }
  .btn-outline-brand:active{ transform:translateY(0); }

  /* ---------- Footer ---------- */
  .site-footer{
    background:var(--bg-base);
    border-top:1px solid var(--line);
    padding:60px 0 28px;
    position:relative;
    z-index:1;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:40px;
    border-bottom:1px solid var(--line);
  }
  .footer-brand b{ font-size:17px; font-weight:700; letter-spacing:-.01em; }
  .footer-brand p{
    margin-top:12px;
    font-size:13.5px;
    color:var(--text-3);
    line-height:1.8;
    max-width:280px;
  }
  .footer-col h4{
    font-size:14px;
    font-weight:600;
    color:var(--brand);
    margin-bottom:16px;
  }
  .footer-col ul{ display:grid; gap:11px; }
  .footer-col ul li{ font-size:14px; color:var(--text-3); }
  .footer-col ul li a{ color:var(--text-2); transition:color .2s ease-out; }
  .footer-col ul li a:hover{ color:var(--brand); text-decoration:underline; text-underline-offset:3px; }
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    padding-top:22px;
    font-size:13px;
    color:var(--text-3);
  }

  /* ---------- Reveal ---------- */
  .reveal{ opacity:0; transform:translateY(16px); transition:opacity .4s ease-out, transform .4s ease-out; }
  .reveal.is-in{ opacity:1; transform:translateY(0); }

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

  /* ---------- Responsive ---------- */
  @media (max-width:1023px){
    .nav-links{ display:none; }
    .header-actions{ display:none; }
    .menu-btn{ display:inline-flex; }
    .mobile-drawer{ display:block; }
    .hero-grid{ grid-template-columns:1fr; gap:36px; align-items:start; }
    .stage-row{ grid-template-columns:repeat(2,1fr); gap:20px; }
    .rhythm-row{ grid-template-columns:100px 1fr; row-gap:12px; }
    .rhythm-row .r-num{ grid-column:2; }
    .rhythm-row .r-link{ grid-column:2; justify-self:start; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
    .footer-brand{ grid-column:1 / -1; }
  }

  @media (max-width:767px){
    :root{ --header-h:60px; }
    body{ font-size:15px; }
    .container-x{ padding-left:16px; padding-right:16px; }
    .sec{ padding:44px 0; }
    .sec-tight{ padding:36px 0; }
    .cat-hero{ padding:44px 0 40px; }
    .cat-tabs-inner{ padding:10px 16px; }
    .logo-text b{ font-size:14.5px; }
    .logo-text span{ display:none; }
    .logo-mark{ width:38px; height:38px; font-size:14px; }
    .hero-sub{ font-size:15.5px; }
    .hero-stats{ gap:24px; }
    .hero-stat b{ font-size:20px; }
    .hero-aside{ padding:20px; }
    .progress-panel{ padding:22px 18px; }
    .progress-num{ font-size:24px; }
    .stage-row{ grid-template-columns:1fr; gap:14px; }
    .stage{ flex-direction:row; align-items:center; gap:12px; }
    .stage span{ margin-left:auto; }
    .tl-item{ padding-left:48px; padding-bottom:34px; }
    .timeline::before{ left:13px; }
    .tl-dot{ left:0; width:27px; height:27px; font-size:11px; }
    .tl-card{ padding:20px 18px; }
    .tl-card h3{ font-size:17px; }
    .tl-card ul.notes li{ font-size:14px; }
    .sec-head h2{ font-size:20px; }
    .cta-band{ padding:48px 0; }
    .cta-inner h2{ font-size:20px; }
    .cta-actions{ width:100%; }
    .cta-actions .btn-primary-pill,
    .cta-actions .btn-outline-brand{ width:100%; justify-content:center; }
    .mobile-bottom-cta{ display:flex; }
    .site-footer{ padding:44px 0 96px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:26px; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
  }

  @media (max-width:520px){
    .rhythm-row{ grid-template-columns:1fr; }
    .rhythm-row .r-num,
    .rhythm-row .r-link{ grid-column:1; }
    .hero-stats{ gap:18px; }
  }

/* roulang page: category3 */
:root{
  --bg-base:#0B0C11;
  --bg-panel:#14161F;
  --bg-elev:#1C1F2B;
  --brand:#16E0A6;
  --brand-hover:#2BF0B6;
  --brand-press:#0FB985;
  --accent:#FF7A45;
  --special:#FF3D8B;
  --line:#262A36;
  --line-strong:#3A4052;
  --text:#F2F4F8;
  --text-2:#A8AEBD;
  --text-3:#6E7484;
  --ok:#3ED598;
  --warn:#FFC24B;
  --err:#FF5C6C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-badge:6px;
  --sh-card:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
  --sh-hover:0 16px 40px rgba(0,0,0,.6), inset 0 0 0 1px var(--brand);
}
*,*::before,*::after{box-sizing:border-box;}
html,body{overflow-x:hidden;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:15.5px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(760px 440px at 10% -10%, rgba(22,224,166,.13), transparent 65%),
    radial-gradient(640px 400px at 94% 4%, rgba(255,122,69,.10), transparent 65%),
    var(--bg-base);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:32px 32px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,dl,dd,dt,ol,ul{margin:0;padding:0;}
ul,ol{list-style:none;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.sec{padding:80px 0;}
.sec-tight{padding:56px 0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,12,17,.92);
  border-bottom:1px solid var(--line);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(11,12,17,.97);
  box-shadow:0 10px 30px rgba(0,0,0,.5);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  display:grid;
  place-items:center;
  width:42px;height:38px;
  background:linear-gradient(135deg,var(--brand) 0%, #12C88F 100%);
  color:#05130E;
  font-weight:800;
  letter-spacing:.04em;
  font-size:15px;
  clip-path:polygon(16% 0,100% 0,84% 100%,0 100%);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:15.5px;font-weight:700;letter-spacing:-.01em;}
.logo-text span{font-size:11.5px;color:var(--text-3);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:22px 0;
  font-size:15px;
  color:var(--text-2);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:14px;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background .2s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{background:var(--line-strong);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{background:var(--brand);}
.header-actions{display:flex;align-items:center;gap:12px;}
.btn-ghost-line{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 18px;
  min-height:44px;
  font-size:14px;
  color:var(--accent);
  border:1px solid rgba(255,122,69,.55);
  border-radius:var(--r-btn);
  transition:background .2s ease, transform .2s ease, border-color .2s ease;
}
.btn-ghost-line:hover{background:rgba(255,122,69,.12);border-color:var(--accent);transform:translateY(-2px);}
.btn-primary-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;
  min-height:44px;
  font-size:15px;
  font-weight:600;
  color:#05130E;
  border-radius:999px;
  background:linear-gradient(135deg,#16E0A6 0%, #12C88F 100%);
  transition:filter .2s ease, transform .2s ease;
}
.btn-primary-pill svg{width:16px;height:16px;}
.btn-primary-pill:hover{filter:brightness(1.08);transform:translateY(-2px);}
.btn-primary-pill:active{transform:translateY(0);filter:brightness(.96);}
.btn-glow{animation:glowPulse 3s ease-in-out infinite;}
@keyframes glowPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(22,224,166,.42);}
  50%{box-shadow:0 0 0 12px rgba(22,224,166,0);}
}
.menu-btn{
  display:none;
  width:44px;height:44px;
  margin-left:auto;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  position:relative;
}
.menu-btn span,.menu-btn span::before,.menu-btn span::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;height:2px;
  background:var(--text);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform .2s ease, opacity .2s ease;
}
.menu-btn span{top:50%;margin-top:-1px;}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}
.nav-open .menu-btn span{background:transparent;}
.nav-open .menu-btn span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-open .menu-btn span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

.nav-drawer{
  position:fixed;
  inset:60px 0 0;
  z-index:55;
  background:rgba(11,12,17,.98);
  padding:12px 16px 120px;
  transform:translateX(102%);
  transition:transform .28s ease;
  overflow-y:auto;
  display:none;
}
.nav-open .nav-drawer{transform:translateX(0);}
.nav-drawer a{
  display:block;
  padding:18px 4px;
  font-size:20px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.is-active{color:var(--brand);}
.drawer-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(11,12,17,.98);
  border-top:1px solid var(--line);
}
.drawer-cta a{
  display:flex;align-items:center;justify-content:center;
  width:100%;
  min-height:52px;
  border-radius:999px;
  font-size:16px;font-weight:600;
  color:#05130E;
  background:linear-gradient(135deg,#16E0A6 0%, #12C88F 100%);
}

/* ---------- 分类标签条 ---------- */
.cat-tabs{
  position:sticky;
  top:68px;
  z-index:45;
  background:rgba(11,12,17,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.cat-tabs-inner{
  display:flex;
  gap:10px;
  padding:12px 24px;
  overflow-x:auto;
  scrollbar-width:none;
}
.cat-tabs-inner::-webkit-scrollbar{display:none;}
.cat-tab{
  flex:0 0 auto;
  padding:9px 16px;
  font-size:13.5px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:999px;
  white-space:nowrap;
  transition:color .2s ease, border-color .2s ease, background .2s ease;
}
.cat-tab:hover{color:var(--text);border-color:var(--line-strong);}
.cat-tab.is-current{
  color:#05130E;
  background:var(--brand);
  border-color:var(--brand);
  font-weight:600;
}

/* ---------- 紧凑头图 ---------- */
.hero-compact{
  position:relative;
  height:240px;
  background-image:url("/assets/images/coverpic/cover-3.webp");
  background-size:cover;
  background-position:center 38%;
  overflow:hidden;
}
.hero-compact::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(11,12,17,.94) 0%, rgba(11,12,17,.55) 52%, rgba(11,12,17,.2) 100%),
    linear-gradient(180deg, rgba(11,12,17,.2) 0%, rgba(11,12,17,.35) 48%, var(--bg-base) 100%);
}
.hero-compact-inner{
  position:relative;
  z-index:2;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding-bottom:26px;
}
.chip-accent{
  display:inline-flex;
  align-items:center;
  gap:8px;
  align-self:flex-start;
  padding:6px 14px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--accent);
  border:1px solid rgba(255,122,69,.55);
  border-radius:999px;
  background:rgba(255,122,69,.08);
}
.chip-accent i{
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  display:inline-block;
}
.hero-compact-note{
  margin-top:12px;
  font-size:13px;
  color:var(--text-2);
}

/* ---------- 面包屑 / 标题 ---------- */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding-top:24px;
}
.crumb a{color:var(--text-3);transition:color .2s ease;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--line-strong);}
.crumb .cur{color:var(--brand);}

.page-head{padding:12px 0 40px;}
.page-head h1{
  font-size:clamp(30px,5.2vw,46px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:840px;
}
.page-head .lead{
  margin-top:16px;
  max-width:640px;
  font-size:17px;
  line-height:1.75;
  color:var(--text-2);
}

.sec-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:26px;
  font-weight:700;
  letter-spacing:-.01em;
}
.sec-title::before{
  content:"";
  width:3px;height:16px;
  border-radius:2px;
  background:var(--brand);
}
.sec-sub{
  margin-top:12px;
  max-width:640px;
  font-size:15px;
  color:var(--text-2);
}

/* ---------- 对比区 ---------- */
.compare-wrap{
  margin-top:32px;
  border-top:1px solid var(--line);
}
.compare-row{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:28px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.compare-row:hover{background:rgba(22,224,166,.04);}
.compare-row dt{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
}
.compare-row dt em{
  font-style:normal;
  font-size:12px;
  font-weight:600;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}
.compare-row dd{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.compare-row dd b{color:var(--text);font-weight:600;}

/* ---------- 奖励节奏清单 ---------- */
.rule-list{margin-top:32px;border-top:1px solid var(--line);}
.rule-item{
  display:grid;
  grid-template-columns:64px 1fr auto;
  gap:20px;
  align-items:center;
  padding:20px 0;
  border-bottom:1px solid var(--line);
  transition:background .2s ease, transform .2s ease;
}
.rule-item:hover{background:rgba(255,255,255,.02);}
.rule-idx{
  display:grid;
  place-items:center;
  width:44px;height:44px;
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  border:1px solid rgba(22,224,166,.45);
  border-radius:var(--r-btn);
  font-variant-numeric:tabular-nums;
}
.rule-body h3{font-size:17px;font-weight:600;}
.rule-body p{margin-top:6px;font-size:14px;line-height:1.7;color:var(--text-2);max-width:640px;}
.rule-meta{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:6px;
  min-width:132px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  font-size:12px;
  font-weight:600;
  border-radius:var(--r-badge);
  white-space:nowrap;
}
.tag-brand{color:var(--brand);background:rgba(22,224,166,.12);}
.tag-accent{color:var(--accent);background:rgba(255,122,69,.12);}
.tag-special{color:var(--special);background:rgba(255,61,139,.12);}
.tag-muted{color:var(--text-2);background:rgba(255,255,255,.05);}
.rule-num{
  font-size:22px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}

/* ---------- 提示条 ---------- */
.notice{
  margin-top:28px;
  display:flex;
  gap:14px;
  padding:18px 20px;
  border:1px solid rgba(255,194,75,.32);
  border-radius:var(--r-card);
  background:rgba(255,194,75,.06);
}
.notice .dot{
  flex:0 0 auto;
  width:10px;height:10px;margin-top:9px;
  border-radius:50%;
  background:var(--warn);
}
.notice p{font-size:14px;line-height:1.75;color:var(--text-2);}
.notice p b{color:var(--text);}

/* ---------- FAQ ---------- */
.faq-list{margin-top:28px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 0;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-q-mark{
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:24px;height:24px;
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  border:1px solid rgba(22,224,166,.5);
  border-radius:6px;
}
.faq-item summary .plus{
  margin-left:auto;
  position:relative;
  width:16px;height:16px;
  flex:0 0 auto;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";
  position:absolute;
  left:0;top:7px;
  width:16px;height:2px;
  border-radius:2px;
  background:var(--text-2);
  transition:transform .2s ease, background .2s ease;
}
.faq-item summary .plus::after{transform:rotate(90deg);}
.faq-item[open] summary .plus::after{transform:rotate(0deg);}
.faq-item[open] summary .plus::before{background:var(--brand);}
.faq-item[open] summary .plus::after{background:var(--brand);}
.faq-answer{
  padding:0 0 22px 38px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--text-2);
  max-width:760px;
}

/* ---------- CTA 条 ---------- */
.cta-band{
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  background:
    radial-gradient(520px 240px at 12% 0%, rgba(22,224,166,.14), transparent 70%),
    var(--bg-panel);
  box-shadow:var(--sh-card);
  padding:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-band h2{font-size:24px;font-weight:700;line-height:1.35;max-width:560px;}
.cta-band p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:80px;
  border-top:1px solid var(--line);
  background:var(--bg-base);
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand b{font-size:16px;font-weight:700;}
.footer-brand p{margin-top:10px;font-size:13.5px;color:var(--text-3);line-height:1.7;max-width:260px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--brand);margin-bottom:14px;}
.footer-col ul li{font-size:14px;color:var(--text-2);line-height:1.6;padding:5px 0;}
.footer-col ul li a{transition:color .2s ease;}
.footer-col ul li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:36px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 移动端固定 CTA ---------- */
.mobile-cta{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:58;
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  background:rgba(11,12,17,.97);
  border-top:1px solid var(--line);
}
.mobile-cta a{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:52px;
  border-radius:999px;
  font-size:15.5px;
  font-weight:600;
  color:#05130E;
  background:linear-gradient(135deg,#16E0A6 0%, #12C88F 100%);
}
.mobile-cta small{
  display:block;
  margin-top:6px;
  text-align:center;
  font-size:12px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}

/* ---------- 滚动揭示 ---------- */
.reveal{opacity:0;transform:translateY(16px);}
.reveal.is-in{opacity:1;transform:translateY(0);transition:opacity .4s ease-out, transform .4s ease-out;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .cta-band{padding:32px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .header-actions{display:none;}
  .menu-btn{display:block;}
  .nav-drawer{display:block;}
  .header-inner{height:60px;}
  .cat-tabs{top:60px;}
  .nav-drawer{inset:60px 0 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container-x{padding:0 16px;}
  .sec{padding:44px 0;}
  .sec-tight{padding:36px 0;}
  .hero-compact{height:200px;background-position:center 42%;}
  .page-head{padding:10px 0 28px;}
  .page-head .lead{font-size:15.5px;}
  .sec-title{font-size:20px;}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:18px 0;}
  .rule-item{grid-template-columns:52px 1fr;gap:14px;padding:18px 0;}
  .rule-idx{width:38px;height:38px;font-size:13px;}
  .rule-meta{align-items:flex-start;grid-column:2;min-width:0;flex-direction:row;flex-wrap:wrap;}
  .faq-answer{padding-left:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 20px;}
  .cta-band h2{font-size:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary-pill{width:100%;justify-content:center;}
  .mobile-cta{display:block;}
  .site-footer{padding-bottom:96px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:22px 18px;}
}

/* roulang page: category4 */
:root{
  --bg-base:#0B0C11;
  --bg-panel:#14161F;
  --bg-elev:#1C1F2B;
  --brand:#16E0A6;
  --brand-hover:#2BF0B6;
  --brand-pressed:#0FB985;
  --accent:#FF7A45;
  --special:#FF3D8B;
  --line:#262A36;
  --line-strong:#3A4052;
  --text:#F2F4F8;
  --text-2:#A8AEBD;
  --text-3:#6E7484;
  --ok:#3ED598;
  --warn:#FFC24B;
  --err:#FF5C6C;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --radius-badge:6px;
  --shadow-card:0 10px 28px rgba(0,0,0,.45), inset 0 0 0 1px rgba(255,255,255,.05);
  --shadow-card-hover:0 16px 40px rgba(0,0,0,.6), inset 0 0 0 1px var(--brand);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:15.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(620px 420px at 10% 6%, rgba(22,224,166,.14), transparent 70%),
    radial-gradient(560px 400px at 88% 18%, rgba(255,122,69,.10), 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,auto,32px 32px,32px 32px;
}
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;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.mono{font-variant-numeric:tabular-nums;}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,12,17,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(11,12,17,.97);box-shadow:0 8px 26px rgba(0,0,0,.5);}
.header-inner{display:flex;align-items:center;gap:18px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;min-height:44px;}
.logo-mark{
  width:38px;height:38px;display:grid;place-items:center;
  font-size:12.5px;font-weight:800;letter-spacing:.02em;color:#05130E;
  background:linear-gradient(135deg,var(--brand),#12C88F);
  clip-path:polygon(16% 0,100% 0,84% 100%,0 100%);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:15px;font-weight:700;letter-spacing:-.01em;}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:10px 12px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  transition:color .2s ease, background .2s ease;
}
.nav-link:hover{color:var(--text);background:var(--bg-panel);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:10px;}
.btn-ghost-line{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:10px 20px;border-radius:var(--radius-btn);
  border:1px solid var(--accent);color:var(--accent);
  font-size:14px;font-weight:600;
  transition:background .2s ease, transform .2s ease, filter .2s ease;
}
.btn-ghost-line:hover{background:rgba(255,122,69,.12);transform:translateY(-2px);}
.btn-ghost-line:active{transform:translateY(0);}
.btn-primary-pill{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:999px;
  font-size:15px;font-weight:600;color:#05130E;
  background:linear-gradient(135deg,var(--brand),#12C88F);
  transition:transform .2s ease, filter .2s ease, box-shadow .2s ease;
}
.btn-primary-pill:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 12px 28px rgba(22,224,166,.28);}
.btn-primary-pill:active{transform:translateY(0);}
.btn-primary-pill svg{width:16px;height:16px;flex:0 0 auto;}
.btn-glow{animation:glowPulse 3s ease-in-out infinite;}
@keyframes glowPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(22,224,166,.34);}
  50%{box-shadow:0 0 0 10px rgba(22,224,166,0);}
}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;margin-left:auto;
}
.menu-btn span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);}
.menu-btn span::before,.menu-btn span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease;
}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:70;
  background:rgba(11,12,17,.985);
  padding:76px 24px 104px;
  overflow-y:auto;
  transform:translateY(-100%);
  transition:transform .28s ease;
}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:16px 4px;font-size:20px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-nav a i{font-size:14px;color:var(--text-3);}
.drawer-cta{
  position:fixed;left:16px;right:16px;bottom:16px;height:56px;
  display:flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;color:#05130E;
  background:linear-gradient(135deg,var(--brand),#12C88F);
}

/* ---------- 分类标签条 ---------- */
.cat-tabs-bar{
  position:sticky;top:68px;z-index:50;
  background:rgba(11,12,17,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.cat-tabs{display:flex;gap:8px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none;}
.cat-tabs::-webkit-scrollbar{display:none;}
.cat-tab{
  flex:0 0 auto;display:inline-flex;align-items:center;
  min-height:40px;padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);font-size:14px;color:var(--text-2);
  transition:color .2s ease, border-color .2s ease, background .2s ease;
}
.cat-tab:hover{color:var(--text);border-color:var(--line-strong);}
.cat-tab.is-active{background:var(--brand);border-color:var(--brand);color:#05130E;font-weight:600;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-top:22px;font-size:13px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-3);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--brand);}

/* ---------- 区块通用 ---------- */
.sec{padding:80px 0;position:relative;z-index:1;}
.sec-tight{padding:56px 0;}
.h2-bar{display:flex;align-items:center;gap:10px;font-size:26px;font-weight:700;letter-spacing:-.01em;line-height:1.3;}
.h2-bar::before{content:"";width:3px;height:16px;border-radius:3px;background:var(--brand);flex:0 0 auto;}
.sec-lead{margin-top:14px;max-width:640px;color:var(--text-2);font-size:15.5px;}
.badge-special{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--special);background:rgba(255,61,139,.12);
  border:1px solid rgba(255,61,139,.38);
}

/* ---------- 宽幅 banner ---------- */
.cat-banner{padding-top:22px;position:relative;z-index:1;}
.banner-frame{
  position:relative;margin:0;overflow:hidden;
  border-radius:var(--radius-panel);
  aspect-ratio:21/9;
  background:linear-gradient(135deg,#14161F,#0B0C11);
  box-shadow:var(--shadow-card);
}
.banner-frame img{width:100%;height:100%;object-fit:cover;object-position:center 38%;}
.banner-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(11,12,17,.9),rgba(11,12,17,.25) 58%,rgba(11,12,17,.78)),
    linear-gradient(0deg,rgba(11,12,17,.94),transparent 62%);
}
.banner-copy{
  position:absolute;left:28px;right:28px;bottom:22px;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.banner-line{font-size:14px;color:var(--text-2);}

/* ---------- H1 区 ---------- */
.page-head{display:grid;grid-template-columns:minmax(0,1fr);gap:0;}
.page-title{
  font-size:clamp(30px,5.2vw,46px);
  line-height:1.15;font-weight:700;letter-spacing:-.01em;
}
.page-lead{margin-top:16px;max-width:720px;color:var(--text-2);font-size:17px;}
.page-meta{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13px;color:var(--text-3);
}
.page-meta span{display:inline-flex;align-items:center;gap:6px;}
.page-meta i{color:var(--brand);font-size:12px;}

/* ---------- 速查卡 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.quick-card{
  background:var(--bg-panel);
  border-radius:var(--radius-card);
  padding:22px 20px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out, box-shadow .2s ease-out;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.quick-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(22,224,166,.5);
  color:var(--brand);background:rgba(22,224,166,.08);
  font-size:17px;
}
.quick-card h3{margin:16px 0 6px;font-size:17px;font-weight:600;line-height:1.4;}
.quick-card p{color:var(--text-2);font-size:14px;line-height:1.7;}
.quick-tag{
  display:inline-flex;align-items:center;margin-top:14px;
  padding:3px 9px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;color:var(--brand);
  background:rgba(22,224,166,.1);
}

/* ---------- 图集 ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.gallery-item{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius-card);
  aspect-ratio:16/9;
  box-shadow:var(--shadow-card);
  background:linear-gradient(135deg,#1C1F2B,#0B0C11);
}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease-out;}
.gallery-item:hover img{transform:scale(1.04);}
.gallery-item:hover{box-shadow:var(--shadow-card-hover);}
.gallery-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 16px 14px;
  background:linear-gradient(0deg,rgba(11,12,17,.94),transparent);
  font-size:14px;color:var(--text);
}

/* ---------- FAQ ---------- */
.faq-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 44px;align-items:start;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;display:flex;align-items:flex-start;gap:12px;
  padding:18px 0;font-size:16px;font-weight:600;color:var(--text);
  cursor:pointer;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.q-mark{
  flex:0 0 24px;width:24px;height:24px;margin-top:3px;
  border-radius:var(--radius-badge);display:grid;place-items:center;
  background:rgba(22,224,166,.13);color:var(--brand);
  font-size:13px;font-weight:700;
}
.q-text{flex:1 1 auto;}
.faq-item summary::after{
  content:"+";margin-left:8px;color:var(--brand);
  font-size:18px;line-height:1;font-weight:600;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-answer{padding:0 0 20px 36px;color:var(--text-2);font-size:14.5px;line-height:1.75;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-panel);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  padding:42px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,166,.16),transparent 68%);
  pointer-events:none;
}
.cta-title{font-size:24px;font-weight:700;line-height:1.35;}
.cta-sub{margin-top:10px;color:var(--text-2);font-size:15px;max-width:520px;}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  background:#0B0C11;
  border-top:1px solid var(--line);
  padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand b{display:block;font-size:17px;font-weight:700;margin-bottom:10px;}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.7;}
.footer-col h4{margin:0 0 14px;font-size:14px;font-weight:600;color:var(--brand);}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:var(--text-2);line-height:1.6;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:42px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}

/* ---------- 移动底部 CTA ---------- */
.mobile-cta-bar{display:none;}

/* ---------- 滚动揭示 ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease-out, transform .4s ease-out;}
.js .reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links,.header-actions{display:none;}
  .menu-btn{display:inline-flex;}
  .cat-tabs-bar{top:60px;}
  .header-inner{height:60px;}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .sec{padding:64px 0;}
}
@media (max-width:900px){
  .faq-columns{grid-template-columns:1fr;gap:0;}
  .faq-columns .faq-col + .faq-col{border-top:0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container-x{padding:0 16px;}
  .sec{padding:44px 0;}
  .page-title{font-size:30px;}
  .page-lead{font-size:15.5px;}
  .h2-bar{font-size:21px;}
  .cat-banner{margin-top:0;padding-top:16px;}
  .banner-frame{aspect-ratio:16/9;border-radius:16px;}
  .banner-copy{left:16px;right:16px;bottom:14px;}
  .banner-line{display:none;}
  .quick-grid{grid-template-columns:1fr;}
  .gallery-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .cta-title{font-size:20px;}
  .mobile-cta-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;left:0;right:0;bottom:0;height:56px;padding:0 16px;
    background:rgba(11,12,17,.96);
    border-top:1px solid var(--line);
    z-index:65;
  }
  .mobile-cta-bar .mc-text{font-size:13px;color:var(--text-2);}
  .mobile-cta-bar .mc-btn{
    display:inline-flex;align-items:center;gap:6px;
    height:40px;padding:0 18px;border-radius:999px;
    font-size:14px;font-weight:600;color:#05130E;
    background:linear-gradient(135deg,var(--brand),#12C88F);
  }
  .site-footer{padding-bottom:80px;}
  .footer-grid{gap:26px;}
}
@media (max-width:520px){
  .section-pad,.sec{padding:40px 0;}
  .faq-item summary{font-size:15px;}
  .gallery-item{aspect-ratio:16/10;}
}