/* roulang page: index */
:root{
  --brand:#7A4DFF;
  --brand-2:#5A2FE0;
  --mint:#22E0A1;
  --orange:#FF8A3D;
  --bg0:#120E1B;
  --bg1:#1A1428;
  --surface:#221B36;
  --line:rgba(255,255,255,.08);
  --text:#EDE9FA;
  --muted:#A79FC0;
  --danger:#FF5C6C;
  --r:16px;
  --r-sm:12px;
  --pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --header-h:72px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--bg0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:60;
  background:var(--bg0);border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{background:rgba(18,14,27,.88);backdrop-filter:blur(12px);box-shadow:0 10px 26px rgba(0,0,0,.5)}
.nav{height:var(--header-h);display:flex;align-items:center;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-size:19px;font-weight:800;letter-spacing:.5px}
.logo .spark{width:8px;height:8px;border-radius:2px;background:var(--brand);transform:rotate(12deg);box-shadow:0 0 12px rgba(122,77,255,.9)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--muted);border-radius:10px;transition:color .18s,background .18s;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.is-active{color:var(--text);font-weight:600}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:20px;height:3px;border-radius:2px;background:var(--brand);
}
.nav-cta{margin-left:12px}
.burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:12px;color:var(--text);cursor:pointer;
}
.burger:hover{border-color:var(--brand)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(18,14,27,.98);backdrop-filter:blur(6px);
  transform:translateY(-100%);transition:transform .3s ease;padding:20px 20px 40px;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:12px;color:var(--text);font-size:20px;cursor:pointer}
.drawer-list{display:grid;gap:10px;margin-bottom:24px}
.drawer-list a{
  display:flex;align-items:center;gap:12px;min-height:56px;padding:0 16px;
  background:var(--bg1);border:1px solid var(--line);border-radius:14px;font-size:16px;
}
.drawer-list a .arrow{margin-left:auto;color:var(--muted)}
.drawer-list a.is-active{border-color:rgba(122,77,255,.5);background:rgba(122,77,255,.12)}
.drawer-list svg{flex:none;color:var(--brand)}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;font-size:15px;font-weight:600;
  border:1px solid transparent;border-radius:var(--r-sm);cursor:pointer;
  transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out,border-color .18s;
}
.btn--primary{background:linear-gradient(135deg,#7A4DFF,#5A2FE0);color:#fff;border-radius:var(--pill);box-shadow:0 8px 20px rgba(122,77,255,.28)}
.btn--primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 8px 20px rgba(122,77,255,.45)}
.btn--primary:active{transform:translateY(0);filter:brightness(.96)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--brand);color:#fff}
.btn--block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;filter:none}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--pill);font-size:12px;line-height:1;white-space:nowrap}
.badge--mint{background:rgba(34,224,161,.15);color:var(--mint)}
.badge--brand{background:rgba(122,77,255,.18);color:#B9A2FF}
.badge--orange{background:rgba(255,138,61,.16);color:var(--orange)}
.badge--end{background:rgba(107,100,128,.22);color:var(--muted)}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:calc(100vh - var(--header-h));
  display:flex;align-items:center;padding:64px 0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(18,14,27,.95) 0%,rgba(18,14,27,.78) 44%,rgba(18,14,27,.52) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;width:100%}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--pill);background:rgba(122,77,255,.16);color:#C6B4FF;font-size:13px;margin-bottom:20px}
.hero h1{font-size:clamp(28px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.5px}
.hero-sub{margin-top:18px;font-size:17px;color:#CFC7E4;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-badges span{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--pill);border:1px solid var(--line);font-size:12px;color:var(--muted);background:rgba(255,255,255,.03)}
.hero-panel{
  background:linear-gradient(160deg,rgba(34,27,54,.96),rgba(26,20,40,.92));
  border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow);
}
.ring{position:relative;width:150px;height:150px;margin:0 auto 14px}
.ring svg{width:150px;height:150px;display:block}
.ring-num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:28px;font-weight:800;font-variant-numeric:tabular-nums}
.ring-num small{font-size:12px;font-weight:400;color:var(--muted);letter-spacing:1px}
.hero-panel h3{font-size:16px;text-align:center;color:var(--muted);font-weight:500;margin-bottom:16px}
.hero-panel ul{display:grid;gap:10px}
.hero-panel li{display:flex;align-items:center;gap:10px;font-size:14px;color:#D6CFE9;padding:10px 12px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:12px}
.hero-panel li i{width:18px;height:18px;border-radius:50%;background:rgba(34,224,161,.18);color:var(--mint);display:inline-flex;align-items:center;justify-content:center;font-size:11px;flex:none;font-style:normal}

/* ---------- section base ---------- */
.section{padding:96px 0}
.section--alt{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.sec-head h2{font-size:clamp(22px,3.2vw,34px);line-height:1.3;font-weight:800;padding-left:16px;position:relative}
.sec-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:5px;border-radius:3px;background:linear-gradient(180deg,var(--brand),var(--brand-2))}
.sec-head p{margin-top:12px;padding-left:16px;color:var(--muted);font-size:15px;max-width:640px}
.sec-link{color:var(--brand);font-size:14px;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;min-height:44px}
.sec-link:hover{text-decoration:underline}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;padding-top:8px}
.steps::before{content:"";position:absolute;top:28px;left:10%;right:10%;border-top:2px dashed rgba(122,77,255,.35)}
.step{position:relative;text-align:center;padding-top:0}
.step .dot{
  position:relative;z-index:2;width:44px;height:44px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
  background:var(--surface);border:1px solid rgba(122,77,255,.5);color:#C6B4FF;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(18,14,27,.9);
}
.step h3{font-size:19px;font-weight:700;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- rewards ---------- */
.reward-scroll{display:flex;gap:20px;overflow-x:auto;padding:8px 4px 28px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.reward-scroll::-webkit-scrollbar{height:6px}
.reward-scroll::-webkit-scrollbar-thumb{background:rgba(122,77,255,.4);border-radius:3px}
.reward-card{
  flex:0 0 260px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s;
}
.reward-card:nth-child(even){transform:translateY(16px)}
.reward-card:hover{transform:translateY(-2px);border-color:rgba(122,77,255,.35);box-shadow:0 18px 38px rgba(0,0,0,.5)}
.reward-card:nth-child(even):hover{transform:translateY(14px)}
.reward-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,var(--bg1),rgba(122,77,255,.25))}
.reward-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .18s ease-out}
.reward-card:hover .reward-media img{transform:scale(1.03)}
.reward-media .badge{position:absolute;top:10px;left:10px}
.reward-body{padding:18px}
.reward-body h3{font-size:17px;font-weight:700;margin-bottom:10px}
.reward-val{display:flex;align-items:baseline;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:8px}
.reward-val b{font-size:20px;color:var(--text);font-variant-numeric:tabular-nums}
.bar{height:8px;border-radius:4px;background:var(--line);overflow:hidden;position:relative}
.bar > i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),var(--mint))}
.reward-body .badge{margin-top:14px}

/* ---------- tasks ---------- */
.tasks{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.task-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:10px;box-shadow:var(--shadow)}
.task-row{display:flex;align-items:center;gap:14px;padding:14px 14px;border-radius:12px;transition:background .18s}
.task-row + .task-row{border-top:1px solid var(--line)}
.task-row:hover{background:rgba(255,255,255,.03)}
.task-row .box{
  width:22px;height:22px;border-radius:6px;border:1.5px solid var(--line);flex:none;
  display:flex;align-items:center;justify-content:center;color:#0f0b18;font-size:13px;font-weight:800;
}
.task-row.is-done .box{background:var(--mint);border-color:var(--mint)}
.task-row.is-done .task-name{color:var(--muted)}
.task-row.is-done{opacity:.7}
.task-name{flex:1;font-size:15px}
.progress-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.progress-panel h3{font-size:18px;font-weight:700;margin-bottom:6px}
.progress-panel .pct{font-size:40px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2}
.progress-panel .pct small{font-size:16px;color:var(--muted);font-weight:500}
.progress-track{position:relative;height:8px;border-radius:4px;background:var(--line);margin:18px 0 12px}
.progress-track > i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),var(--mint));position:relative}
.progress-track > i::after{
  content:"";position:absolute;right:-5px;top:50%;transform:translateY(-50%);
  width:12px;height:12px;border-radius:50%;background:var(--mint);box-shadow:0 0 14px rgba(34,224,161,.9);
}
.progress-note{font-size:14px;color:var(--muted)}
.progress-panel ul.mini{display:grid;gap:10px;margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}
.progress-panel ul.mini li{display:flex;justify-content:space-between;font-size:14px;color:var(--muted)}
.progress-panel ul.mini li b{color:var(--text);font-variant-numeric:tabular-nums}

/* ---------- cta bar ---------- */
.cta-bar{
  position:relative;overflow:hidden;background:var(--bg1);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:48px 0;
}
.cta-bar::before{
  content:"";position:absolute;top:0;left:0;right:0;bottom:0;
  background:linear-gradient(120deg,rgba(122,77,255,.22),rgba(122,77,255,.05) 60%,transparent);
  clip-path:polygon(0 0,100% 0,100% 70%,0 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;line-height:1.35}
.cta-inner p{color:var(--muted);font-size:15px;margin-top:8px}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:transform .18s ease-out,border-color .18s,box-shadow .18s}
.news-card:hover{transform:translateY(-2px);border-color:rgba(122,77,255,.35);box-shadow:0 18px 38px rgba(0,0,0,.5)}
.news-card__media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(140deg,var(--bg1),rgba(122,77,255,.25))}
.news-card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .18s ease-out}
.news-card:hover .news-card__media img{transform:scale(1.03)}
.news-card__media .badge{position:absolute;top:10px;left:10px}
.news-card__body{padding:20px 20px 22px}
.news-card__title{font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__title a:hover{color:#C6B4FF}
.news-card__sum{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--muted)}
.news-card__time{font-variant-numeric:tabular-nums}
.news-card__more{color:var(--brand)}
.news-empty{
  display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;
  padding:56px 24px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r);
}
.news-empty svg{width:96px;height:96px;color:var(--muted);opacity:.65}
.news-empty p{color:var(--muted);font-size:15px}

/* ---------- voices ---------- */
.voices{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.voice{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.voice .rate{display:flex;gap:4px;color:var(--orange);margin-bottom:14px}
.voice blockquote{margin:0;font-size:15px;line-height:1.9;color:#D6CFE9;border-left:3px solid var(--brand);padding-left:16px;background:linear-gradient(90deg,rgba(122,77,255,.08),transparent)}
.voice .who{display:flex;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--muted)}
.voice .who span.av{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--mint));flex:none}
.score-card{background:linear-gradient(160deg,rgba(34,27,54,.96),rgba(26,20,40,.92));border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center}
.score-card .big{font-size:44px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.1}
.score-card .big small{font-size:15px;color:var(--muted);font-weight:500}
.score-card .bar{margin-top:14px}
.score-card p{margin-top:14px;font-size:14px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:border-color .18s}
.faq details[open]{border-color:rgba(122,77,255,.4)}
.faq summary{
  display:flex;align-items:center;gap:14px;min-height:56px;padding:0 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq .fno{
  width:32px;height:32px;border-radius:8px;flex:none;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;background:rgba(122,77,255,.14);color:#C6B4FF;font-variant-numeric:tabular-nums;
  transition:background .2s,color .2s;
}
.faq details[open] .fno{background:var(--brand);color:#fff}
.faq summary .arrow{margin-left:auto;color:var(--muted);transition:transform .22s ease}
.faq details[open] summary .arrow{transform:rotate(180deg)}
.faq .ans{padding:0 20px 20px 66px;font-size:15px;color:var(--muted);line-height:1.9}

/* ---------- form ---------- */
.subscribe{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.field label em{color:var(--orange);font-style:normal;margin-left:4px}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:12px;background:var(--bg1);
  border:1px solid var(--line);color:var(--text);transition:border-color .18s,box-shadow .18s;
}
.field input::placeholder{color:#7E769A}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(122,77,255,.2)}
.field.has-error input{border-color:var(--danger)}
.field .err{display:none;margin-top:8px;font-size:13px;color:var(--danger)}
.field.has-error .err{display:block}
.form-note{font-size:13px;color:var(--muted);margin-top:14px}
.btn .spin{display:none;width:16px;height:16px;animation:spin 1s linear infinite}
.btn.is-loading .spin{display:inline-block}
.btn.is-loading .lbl{opacity:.7}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- footer ---------- */
.site-footer{background:#0D0A15;border-top:1px solid var(--line);padding:64px 0 32px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;margin-bottom:14px}
.foot-brand .spark{width:8px;height:8px;border-radius:2px;background:var(--brand);transform:rotate(12deg);box-shadow:0 0 12px rgba(122,77,255,.9)}
.site-footer p{font-size:14px;color:var(--muted);line-height:1.9;max-width:340px}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:14px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:var(--muted);min-height:32px;display:inline-flex;align-items:center}
.foot-col a:hover{color:var(--text)}
.foot-bottom{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7E769A}

/* ---------- mobile tabbar ---------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(18,14,27,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);height:60px}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:#8E86A8;position:relative;min-height:44px}
.tabbar a svg{width:22px;height:22px}
.tabbar a.is-active{color:var(--brand);font-weight:700}
.tabbar a.is-active::before{content:"";position:absolute;top:6px;width:4px;height:4px;border-radius:50%;background:var(--brand)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- breakpoints ---------- */
@media (min-width:1440px){
  .container{max-width:1200px}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero{min-height:auto;padding:56px 0 64px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .tasks{grid-template-columns:1fr}
  .voices{grid-template-columns:1fr 1fr}
  .subscribe{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:inline-flex;margin-left:auto}
}
@media (max-width:768px){
  :root{--header-h:56px}
  body{padding-bottom:76px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .steps{grid-template-columns:1fr;gap:0;position:relative;padding-left:8px}
  .steps::before{left:29px;right:auto;top:8px;bottom:24px;border-top:0;border-left:2px dashed rgba(122,77,255,.35)}
  .step{display:grid;grid-template-columns:44px 1fr;gap:16px;text-align:left;padding:0 0 28px}
  .step .dot{margin:0}
  .step .step-body{padding-top:8px}
  .reward-card{flex:0 0 240px}
  .reward-card:nth-child(even){transform:none}
  .reward-card:nth-child(even):hover{transform:translateY(-2px)}
  .news-grid{grid-template-columns:1fr}
  .voices{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .hero-actions .btn{width:100%}
  .tabbar{display:block}
  .faq .ans{padding-left:20px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:480px){
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .ring,.ring svg{width:132px;height:132px}
  .reward-card{flex:0 0 78%}
  .progress-panel{padding:20px}
  .form-card{padding:20px}
}

/* roulang page: article */
:root{
  --bg0:#120E1B;
  --bg1:#1A1428;
  --surface:#221B36;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#EDE9FA;
  --muted:#A79FC0;
  --brand:#7A4DFF;
  --brand-deep:#5A2FE0;
  --mint:#22E0A1;
  --orange:#FF8A3D;
  --danger:#FF5C6C;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --maxw:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg0);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.2px}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-alt{background:var(--bg1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,3.2vw,34px);line-height:1.3;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--mint))}
.section-head p{color:var(--muted);font-size:14px;margin-top:8px}
.text-link{color:var(--mint);font-size:14px;font-weight:600;white-space:nowrap}
.text-link:hover{color:#7DF3C8}

/* ===== 顶栏 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bg0);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(18,14,27,.86);
  backdrop-filter:blur(14px);
  box-shadow:0 12px 30px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:800;letter-spacing:.5px}
.spark{width:12px;height:12px;border-radius:3px;background:linear-gradient(135deg,var(--brand),var(--mint));display:inline-block;box-shadow:0 0 12px rgba(122,77,255,.7)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{position:relative;font-size:15px;color:var(--muted);padding:6px 0;font-weight:600}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:-6px;width:0;height:3px;border-radius:3px;background:var(--brand);transform:translateX(-50%);transition:width .2s ease}
.nav-links a:hover{color:var(--text)}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::after{width:20px}
.header-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;cursor:pointer
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--text);stroke-width:1.75;fill:none;stroke-linecap:round}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,border-color .18s ease,background-color .18s ease;
}
.btn:active{transform:translateY(0);filter:brightness(.96)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;border-radius:999px}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 8px 20px rgba(122,77,255,.35)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== 移动抽屉 ===== */
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(18,14,27,.98);
  transform:translateY(-100%);transition:transform .28s ease;display:flex;flex-direction:column;
  padding:calc(16px + env(safe-area-inset-top)) 20px 28px;
}
.drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);display:flex;align-items:center;justify-content:center;cursor:pointer}
.drawer-close svg{width:20px;height:20px;stroke:var(--text);stroke-width:1.75;fill:none;stroke-linecap:round}
.drawer nav{display:flex;flex-direction:column;gap:8px;margin-top:18px}
.drawer nav a{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:56px;padding:0 16px;border-radius:14px;background:var(--surface);
  border:1px solid var(--line);font-size:16px;font-weight:600
}
.drawer nav a .left{display:flex;align-items:center;gap:12px}
.drawer nav a svg{width:22px;height:22px;stroke:var(--brand);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.drawer nav a .arrow{color:var(--muted);font-size:16px}
.drawer .btn{width:100%;margin-top:auto}

/* ===== 移动底部 Tab ===== */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:100;
  background:rgba(18,14,27,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar ul{display:flex}
.tabbar li{flex:1}
.tabbar a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:60px;font-size:11px;color:#8E86A8;position:relative;font-weight:600
}
.tabbar a svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.tabbar a.is-active{color:var(--brand)}
.tabbar a.is-active::before{content:"";position:absolute;top:6px;width:4px;height:4px;border-radius:50%;background:var(--brand)}

/* ===== 阅读进度 ===== */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;background:linear-gradient(90deg,var(--brand),var(--mint));transition:width .1s linear}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:28px 0 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ===== 文章头部 ===== */
.article-head{padding-bottom:36px;background:
  radial-gradient(720px 320px at 12% 0%,rgba(122,77,255,.22),transparent 70%),
  radial-gradient(560px 280px at 92% 10%,rgba(34,224,161,.12),transparent 70%),
  var(--bg0);
  border-bottom:1px solid var(--line);
}
.article-head-inner{max-width:860px;padding:26px 0 0}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:1px;color:var(--mint);text-transform:uppercase;margin-bottom:14px}
.kicker::before{content:"";width:22px;height:2px;background:var(--mint);border-radius:2px}
.article-head h1{font-size:clamp(26px,4vw,44px);line-height:1.2;margin:8px 0 18px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--muted);opacity:.6}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:700;line-height:1
}
.badge-brand{background:rgba(122,77,255,.15);color:#B79BFF}
.badge-mint{background:rgba(34,224,161,.15);color:var(--mint)}
.badge-orange{background:rgba(255,138,61,.15);color:var(--orange)}
.badge-muted{background:rgba(107,100,128,.2);color:var(--muted)}

/* ===== 布局 ===== */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;padding:56px 0 0;align-items:start}
.article-main{min-width:0}
.cover-figure{margin:0 0 40px}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.cover-figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}

/* ===== 正文排版 ===== */
.article-body{font-size:17px;line-height:1.95;color:#DED9F0;word-wrap:break-word}
.article-body>p{margin:0 0 1.4em}
.article-body h2{
  font-size:clamp(20px,2.6vw,27px);line-height:1.35;color:var(--text);
  margin:48px 0 20px;padding-left:14px;position:relative
}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--mint))}
.article-body h3{font-size:20px;line-height:1.45;margin:34px 0 14px;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:4px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--brand);transform:rotate(45deg)}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{content:counter(li,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--mint);font-size:13px;font-weight:800;font-variant-numeric:tabular-nums}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;background:var(--bg1);border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;color:#CFC8E6
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:24px 0 8px;border:1px solid var(--line)}
.article-body a{color:var(--mint);border-bottom:1px solid rgba(34,224,161,.35)}
.article-body a:hover{color:#7DF3C8;border-bottom-color:#7DF3C8}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:rgba(122,77,255,.12);color:var(--text);font-weight:700}
.article-body tbody tr:nth-child(even){background:var(--bg1)}
.article-body code{background:rgba(122,77,255,.14);color:#C9B6FF;padding:2px 6px;border-radius:6px;font-size:15px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}

/* ===== 空态 ===== */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-card);background:var(--bg1);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px
}
.empty-state svg{width:96px;height:96px;stroke:var(--line-strong);fill:none;stroke-width:1.4}
.empty-state h3{font-size:20px}
.empty-state p{color:var(--muted);font-size:15px;max-width:420px}

/* ===== 侧栏 ===== */
.article-aside{position:sticky;top:100px;display:flex;flex-direction:column;gap:22px}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card)}
.aside-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.aside-card h3::before{content:"";width:4px;height:14px;border-radius:3px;background:var(--brand)}
.aside-card ul li{font-size:14px;color:var(--muted);padding-left:18px;position:relative;margin-bottom:10px;line-height:1.7}
.aside-card ul li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:var(--mint)}
.aside-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;padding:11px 0;border-bottom:1px dashed var(--line);color:#D6D0EC}
.aside-links a:last-child{border-bottom:0}
.aside-links a:hover{color:var(--brand)}
.aside-links span{color:var(--muted);font-size:12px}

/* ===== 标签行 ===== */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--muted)
}
.tag:hover{border-color:var(--brand);color:var(--text)}

/* ===== 上下篇 ===== */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:32px}
.prevnext a{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;display:flex;flex-direction:column;gap:6px;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease
}
.prevnext a:hover{transform:translateY(-2px);border-color:rgba(122,77,255,.35);box-shadow:0 0 0 1px rgba(122,77,255,.35),var(--shadow-card)}
.prevnext .dir{font-size:12px;color:var(--muted);letter-spacing:1px}
.prevnext .ttl{font-size:15px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.prevnext .right{align-items:flex-end;text-align:right}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:14px;color:var(--mint);font-weight:600}
.back-link:hover{color:#7DF3C8}

/* ===== 列表行卡片 ===== */
.post-list{display:flex;flex-direction:column;gap:14px}
.list-row{
  display:grid;grid-template-columns:96px minmax(0,1fr) 24px;gap:18px;align-items:center;
  padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  transition:background-color .18s ease,transform .18s ease,border-color .18s ease
}
.list-row:hover{background:#28203F;transform:translateY(-2px);border-color:rgba(122,77,255,.35)}
.list-row .thumb{width:96px;height:72px;object-fit:cover;border-radius:12px}
.list-row h3{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-row .meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:8px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.list-row .arrow{color:var(--muted);font-size:18px;text-align:right}
.list-row:hover .arrow{color:var(--brand)}

/* ===== CTA 条 ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid rgba(122,77,255,.28);
  background:linear-gradient(100deg,rgba(122,77,255,.16),rgba(34,224,161,.06) 60%,transparent),var(--bg1);
  padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px
}
.cta-band::after{content:"";position:absolute;right:-60px;top:-40px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(122,77,255,.35),transparent 70%)}
.cta-band h2{font-size:clamp(20px,2.8vw,28px);line-height:1.35;position:relative;z-index:1}
.cta-band p{color:var(--muted);font-size:14px;margin-top:8px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1;flex-shrink:0}

/* ===== FAQ ===== */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq details[open]{border-color:rgba(122,77,255,.35)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  min-height:56px;padding:14px 20px;font-size:16px;font-weight:700
}
.faq summary::-webkit-details-marker{display:none}
.faq .num{
  width:32px;height:32px;flex-shrink:0;border-radius:9px;background:rgba(122,77,255,.12);
  color:#B79BFF;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;transition:background-color .2s ease,color .2s ease
}
.faq details[open] .num{background:var(--brand);color:#fff}
.faq .chev{margin-left:auto;transition:transform .22s ease;color:var(--muted);font-size:14px}
.faq details[open] .chev{transform:rotate(180deg);color:var(--brand)}
.faq .ans{padding:0 20px 20px 66px;color:var(--muted);font-size:15px;line-height:1.85}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg1);border-top:1px solid var(--line);padding:64px 0 0;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:800;margin-bottom:14px}
.site-footer p{color:var(--muted);font-size:14px;line-height:1.85;max-width:340px}
.foot-col h4{font-size:15px;margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{color:var(--muted);font-size:14px}
.foot-col ul a:hover{color:var(--brand)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px
}

/* ===== 渐入 ===== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}

/* ===== 断点 ===== */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px}
  .article-layout{grid-template-columns:1fr;gap:44px}
  .article-aside{position:static}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{padding-bottom:76px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  .header-inner{height:56px}
  .header-cta .btn{display:none}
  .tabbar{display:block}
  .article-head{padding-bottom:26px}
  .article-layout{padding-top:36px}
  .article-body{font-size:16px}
  .prevnext{grid-template-columns:1fr}
  .prevnext .right{align-items:flex-start;text-align:left}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-band .btn{width:100%}
  .list-row{grid-template-columns:80px minmax(0,1fr) 18px;gap:14px;padding:14px}
  .list-row .thumb{width:80px;height:64px}
  .faq .ans{padding-left:20px}
  .site-footer{padding-top:48px;margin-top:64px}
}
@media (max-width:520px){
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .article-head h1{font-size:26px}
  .meta-row{gap:8px 12px}
  .breadcrumb{padding-top:20px}
}
@media (min-width:1440px){
  .container{max-width:var(--maxw)}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --bg0:#120E1B;
  --bg1:#1A1428;
  --surface:#221B36;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#EDE9FA;
  --muted:#A79FC0;
  --brand:#7A4DFF;
  --brand-2:#5A2FE0;
  --brand-soft:rgba(122,77,255,.15);
  --brand-line:rgba(122,77,255,.35);
  --mint:#22E0A1;
  --mint-soft:rgba(34,224,161,.15);
  --orange:#FF8A3D;
  --orange-soft:rgba(255,138,61,.12);
  --danger:#FF5C6C;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(122,77,255,.35), 0 16px 36px rgba(0,0,0,.5);
  --shadow-btn:0 8px 20px rgba(122,77,255,.35);
  --container:1200px;
  --gap-sec:96px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg0);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{display:block}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(122,77,255,.45);color:#fff}
.num{font-variant-numeric:tabular-nums}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.2px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,border-color .18s ease-out,background .18s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#fff;box-shadow:0 6px 18px rgba(122,77,255,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--shadow-btn)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:transparent;border:1px solid var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:#fff;background:rgba(122,77,255,.1)}
.btn-ghost:active{background:rgba(122,77,255,.18)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;border-radius:var(--r-pill)}
.btn-pill{border-radius:var(--r-pill)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.75}
.btn .spin{width:16px;height:16px;animation:spin 1.2s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;line-height:1.6;white-space:nowrap;
}
.badge-mint{background:var(--mint-soft);color:var(--mint)}
.badge-brand{background:var(--brand-soft);color:#B9A4FF}
.badge-orange{background:var(--orange-soft);color:var(--orange)}
.badge-muted{background:rgba(107,100,128,.2);color:var(--muted)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.7;color:#B9A4FF;
  background:var(--brand-soft);border:1px solid rgba(122,77,255,.22);
  transition:border-color .18s ease-out,color .18s ease-out;
}
.tag:hover{border-color:var(--brand-line);color:#fff}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bg0);border-bottom:1px solid var(--line);
  transition:background .22s ease-out,box-shadow .22s ease-out,backdrop-filter .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(18,14,27,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:.3px;color:var(--text);
}
.brand:hover{color:#fff}
.spark{
  width:8px;height:8px;border-radius:2px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--mint));
  box-shadow:0 0 12px rgba(122,77,255,.85);
}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:72px;
  font-size:15px;font-weight:600;color:var(--muted);
}
.nav-links a:hover{color:var(--text)}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:16px;width:0;height:3px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);transition:width .18s ease-out;
}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::after{width:20px}
.header-cta{display:flex;align-items:center;margin-left:8px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle:hover{border-color:var(--brand-line)}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(18,14,27,.98);
  padding:20px 20px calc(24px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:8px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:8px}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--text)}
.drawer-close:hover{border-color:var(--brand-line);color:#fff}
.drawer-link{
  display:flex;align-items:center;gap:14px;min-height:56px;padding:0 16px;
  border:1px solid var(--line);border-radius:14px;background:var(--bg1);
  font-size:16px;font-weight:600;color:var(--text);
}
.drawer-link:hover{border-color:var(--brand-line);background:rgba(122,77,255,.1)}
.drawer-link .arrow{margin-left:auto;color:var(--muted)}
.drawer-link.is-active{border-color:var(--brand-line);background:rgba(122,77,255,.14)}
.drawer-cta{margin-top:auto}

/* ============ 移动底部 Tab ============ */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(18,14,27,.96);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);height:60px}
.tab-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:#8E86A8;position:relative;min-height:44px;
}
.tab-item svg{width:22px;height:22px}
.tab-item::before{
  content:"";position:absolute;top:4px;width:4px;height:4px;border-radius:50%;
  background:var(--brand);opacity:0;transition:opacity .18s ease-out;
}
.tab-item.is-active{color:var(--text);font-weight:700}
.tab-item.is-active svg{color:var(--brand)}
.tab-item.is-active::before{opacity:1}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--text)}
.crumb .sep{color:rgba(167,159,192,.5)}
.crumb .current{color:var(--brand)}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:var(--bg0) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(18,14,27,.97) 0%,rgba(18,14,27,.88) 42%,rgba(18,14,27,.62) 100%);
}
.hero::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:linear-gradient(180deg,var(--brand),var(--mint));opacity:.9;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding:40px 0 96px;
}
.hero-topline{display:flex;align-items:center;gap:16px;margin-bottom:28px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;color:#B9A4FF;
  background:var(--brand-soft);border:1px solid rgba(122,77,255,.28);
}
.hero h1{font-size:clamp(28px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.5px}
.hero h1 .accent{
  background:linear-gradient(120deg,var(--brand) 0%,var(--mint) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:20px;font-size:clamp(16px,1.6vw,19px);line-height:1.7;
  color:var(--text);font-weight:600;max-width:34em;
}
.hero-desc{margin-top:16px;color:var(--muted);font-size:16px;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-chips span{
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--muted);
  border:1px solid var(--line);background:rgba(34,27,54,.6);
}

.hero-panel{
  position:relative;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-card);overflow:hidden;
}
.panel-num{
  position:absolute;right:8px;top:-18px;font-size:104px;font-weight:800;line-height:1;
  color:rgba(122,77,255,.09);font-variant-numeric:tabular-nums;pointer-events:none;
}
.hero-panel h2{font-size:18px;font-weight:800;margin-bottom:20px}
.meter-list{display:grid;gap:18px}
.meter-head{display:flex;align-items:baseline;justify-content:space-between;font-size:14px;margin-bottom:8px}
.meter-head span{color:var(--muted)}
.meter-head b{color:var(--text);font-variant-numeric:tabular-nums}
.progress{height:8px;border-radius:var(--r-pill);background:var(--line);overflow:hidden}
.progress i{
  display:block;height:100%;border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--brand),var(--mint));
  position:relative;
}
.progress i::after{
  content:"";position:absolute;right:-4px;top:50%;width:8px;height:8px;border-radius:50%;
  transform:translateY(-50%);background:var(--mint);box-shadow:0 0 10px rgba(34,224,161,.9);
}
.panel-note{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 板块通用 ============ */
.section{padding:var(--gap-sec) 0}
.section-alt{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head h2{
  font-size:clamp(22px,3.2vw,34px);line-height:1.3;font-weight:800;
  padding-left:16px;position:relative;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--mint));
}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15px;max-width:52em;padding-left:16px}
.sec-link{
  font-size:14px;font-weight:700;color:#B9A4FF;white-space:nowrap;
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
}
.sec-link:hover{color:#fff}

/* ============ 要点横条 ============ */
.point-list{display:grid;gap:14px}
.point-row{
  display:grid;grid-template-columns:60px 1fr 220px;align-items:center;gap:20px;
  padding:20px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.point-row:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-hover)}
.point-idx{
  font-size:22px;font-weight:800;color:transparent;
  background:linear-gradient(120deg,var(--brand),var(--mint));
  -webkit-background-clip:text;background-clip:text;font-variant-numeric:tabular-nums;
}
.point-row h3{font-size:17px;font-weight:700;margin-bottom:4px}
.point-row p{font-size:14px;color:var(--muted);line-height:1.7}
.point-meta{display:flex;justify-content:flex-end}

/* ============ 双列错位瀑布 ============ */
.waterfall{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.wf-col{display:grid;gap:24px}
.wf-col--right{margin-top:40px}
.wf-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.wf-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--shadow-hover)}
.wf-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:linear-gradient(140deg,var(--bg1),rgba(122,77,255,.12))}
.wf-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out}
.wf-card:hover .wf-thumb img{transform:scale(1.03)}
.wf-thumb .badge{position:absolute;left:12px;bottom:12px;backdrop-filter:blur(6px)}
.wf-body{padding:20px}
.wf-body h3{
  font-size:19px;line-height:1.45;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:56px;
}
.wf-body p{
  margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ============ 阶段节奏 ============ */
.stage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stage-card{
  position:relative;padding:28px 24px;border-radius:var(--r-card);
  background:var(--bg1);border:1px solid var(--line);overflow:hidden;
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.stage-card:hover{transform:translateY(-2px);border-color:var(--brand-line)}
.stage-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;
  border-radius:50%;background:radial-gradient(circle,rgba(122,77,255,.22),transparent 70%);
}
.stage-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--mint);margin-bottom:14px}
.stage-label .dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px rgba(34,224,161,.9)}
.stage-card h3{font-size:20px;font-weight:800;margin-bottom:12px}
.stage-card ul{display:grid;gap:8px;margin-top:16px}
.stage-card li{position:relative;padding-left:18px;font-size:14px;color:var(--muted);line-height:1.7}
.stage-card li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--brand);opacity:.8;
}
.stage-meter{margin-top:22px}
.stage-meter .meter-head{font-size:13px}

/* ============ 数据条 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  padding:26px 24px;border-radius:var(--r-card);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.stat:hover{transform:translateY(-2px);border-color:var(--brand-line)}
.stat b{
  display:block;font-size:clamp(28px,3.4vw,38px);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,var(--brand),var(--mint));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--muted)}
.stat small{display:block;margin-top:6px;font-size:12px;color:rgba(167,159,192,.75)}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px}
.faq details{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .18s ease-out;
}
.faq details[open]{border-color:var(--brand-line)}
.faq summary{
  display:flex;align-items:center;gap:16px;min-height:56px;padding:14px 20px;
  cursor:pointer;list-style:none;font-size:16px;font-weight:700;
}
.faq summary::-webkit-details-marker{display:none}
.faq .fnum{
  flex:none;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#B9A4FF;background:var(--brand-soft);
  transition:background .2s ease-out,color .2s ease-out;font-variant-numeric:tabular-nums;
}
.faq details[open] .fnum{background:var(--brand);color:#fff}
.faq .chev{margin-left:auto;flex:none;color:var(--muted);transition:transform .2s ease-out}
.faq details[open] .chev{transform:rotate(180deg);color:#B9A4FF}
.faq .answer{padding:0 20px 22px 68px;color:var(--muted);font-size:15px;line-height:1.85}

/* ============ CTA 斜切条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(100deg,rgba(122,77,255,.14) 0%,rgba(26,20,40,.92) 55%,rgba(26,20,40,.98) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;left:-10%;top:0;bottom:0;width:120%;
  background:repeating-linear-gradient(115deg,rgba(122,77,255,.14) 0 3px,transparent 3px 14px);
  opacity:.5;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-inner h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.35}
.cta-inner p{margin-top:10px;color:var(--muted);font-size:15px;max-width:44em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg0);border-top:1px solid var(--line);padding:64px 0 32px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--text);margin-bottom:14px;
}
.site-footer p{color:var(--muted);font-size:14px;line-height:1.8;max-width:32em}
.foot-col h4{font-size:14px;font-weight:800;margin-bottom:16px;color:var(--text)}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:var(--muted);display:inline-flex;align-items:center;min-height:32px}
.foot-col a:hover{color:#B9A4FF}
.foot-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(167,159,192,.75);
}

/* ============ 滚动渐入 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease-out,transform .55s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ============ 断点：≤1024 ============ */
@media (max-width:1024px){
  :root{--gap-sec:72px}
  .nav-links{gap:18px}
  .nav-links a{font-size:14px}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:32px 0 64px}
  .hero-panel{max-width:560px}
  .point-row{grid-template-columns:48px 1fr;gap:16px}
  .point-meta{grid-column:2;justify-content:flex-start}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}

/* ============ 断点：≤768 ============ */
@media (max-width:768px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
  .container{padding:0 16px}
  :root{--gap-sec:56px}
  .header-inner{height:56px;gap:12px}
  .brand{font-size:17px}
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .tabbar{display:block}
  .hero-inner{padding:24px 0 56px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-chips span{font-size:12px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .sec-head h2{padding-left:14px}
  .sec-head p{padding-left:14px}
  .waterfall{grid-template-columns:1fr}
  .wf-col--right{margin-top:0}
  .wf-body h3{min-height:0;-webkit-line-clamp:2}
  .stage-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat{padding:20px 18px}
  .faq .answer{padding:0 18px 20px 18px}
  .faq summary{gap:12px;font-size:15px;padding:12px 16px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .cta-band{padding:48px 0}
  .site-footer{padding:48px 0 24px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{margin-top:32px;flex-direction:column;align-items:flex-start;gap:8px}
}

/* ============ 断点：≤480 ============ */
@media (max-width:480px){
  body{font-size:15px;line-height:1.8}
  .hero h1{font-size:27px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .point-row{padding:18px;grid-template-columns:1fr}
  .point-idx{font-size:18px}
  .point-meta{grid-column:1}
  .stat-grid{grid-template-columns:1fr}
  .stage-card{padding:22px 18px}
  .hero-panel{padding:22px 18px}
  .panel-num{font-size:80px}
  .brand{font-size:16px}
}

/* ============ 断点：≥1440 ============ */
@media (min-width:1440px){
  :root{--gap-sec:104px}
  .hero-inner{padding:52px 0 104px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg0:#120E1B;
  --bg1:#1A1428;
  --surface:#221B36;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#EDE9FA;
  --muted:#A79FC0;
  --brand:#7A4DFF;
  --brand-deep:#5A2FE0;
  --mint:#22E0A1;
  --orange:#FF8A3D;
  --danger:#FF5C6C;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-hover:0 18px 40px rgba(0,0,0,.55);
  --shadow-brand:0 8px 20px rgba(122,77,255,.35);
  --container:1200px;
  --gap-section:96px;
  --nav-h:72px;
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:#fff;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.005em;}
h1{font-size:clamp(28px,5vw,52px);line-height:1.15;}
h2{font-size:clamp(22px,3.2vw,34px);line-height:1.3;}
h3{font-size:20px;line-height:1.45;}
h4{font-size:15px;line-height:1.5;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(122,77,255,.4);color:#fff;}

/* ============ 布局容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--gap-section) 0;position:relative;}
.section--alt{background:var(--bg1);}
.section--tight{padding-top:64px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--bg0);
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(18,14,27,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:19px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.spark{
  width:10px;height:10px;
  border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--mint));
  box-shadow:0 0 12px rgba(122,77,255,.9);
  flex:0 0 auto;
}
.logo-text{background:linear-gradient(180deg,#fff,#CFC4F5);-webkit-background-clip:text;background-clip:text;color:transparent;}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:10px;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:6px;
  width:0;
  height:3px;
  border-radius:2px;
  background:var(--brand);
  transform:translateX(-50%);
  transition:width .2s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-links a:hover::after{width:20px;}
.nav-links a.is-active{color:#fff;font-weight:600;}
.nav-links a.is-active::after{width:20px;}
.header-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease,opacity .22s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(10,7,16,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  display:flex;
  flex-direction:column;
  padding:18px 20px 32px;
  transform:translateY(-12px);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.drawer.is-open{opacity:1;transform:translateY(0);visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:15px;color:var(--muted);}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--muted);
}
.drawer-nav{display:flex;flex-direction:column;gap:8px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:56px;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(34,27,54,.7);
  font-size:16px;
}
.drawer-nav a .d-ico{width:22px;height:22px;color:var(--brand);flex:0 0 auto;}
.drawer-nav a .d-arrow{margin-left:auto;color:var(--muted);font-size:18px;line-height:1;}
.drawer-nav a.is-active{border-color:rgba(122,77,255,.55);background:rgba(122,77,255,.14);font-weight:600;}
.drawer-cta{margin-top:auto;padding-top:24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,border-color .18s ease,background-color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  box-shadow:0 6px 18px rgba(122,77,255,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--shadow-brand);color:#fff;}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:#fff;background:rgba(122,77,255,.08);}
.btn-pill{border-radius:999px;}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-lg{min-height:52px;padding:0 30px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;filter:none;box-shadow:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
}
.badge-mint{background:rgba(34,224,161,.15);color:var(--mint);}
.badge-brand{background:rgba(122,77,255,.16);color:#B49BFF;}
.badge-end{background:rgba(107,100,128,.2);color:var(--muted);}
.badge-orange{background:rgba(255,138,61,.14);color:var(--orange);}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:8px;
  font-size:12px;
  color:var(--muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  padding:20px 0 0;
}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--bg1);
}
.cat-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.38;
  filter:saturate(1.05);
}
.cat-hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(18,14,27,.94) 0%,rgba(18,14,27,.72) 46%,rgba(18,14,27,.95) 100%);
}
.cat-hero-inner{
  position:relative;
  z-index:2;
  padding:12px 24px 76px;
  max-width:var(--container);
  margin:0 auto;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--mint);
  text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--mint);display:block;}
.cat-hero h1{margin-bottom:16px;max-width:16em;}
.cat-lead{
  font-size:17px;
  color:#CFC7E6;
  max-width:44em;
  line-height:1.9;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.stat-chip{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:12px 18px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(34,27,54,.72);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.stat-chip b{
  font-size:22px;
  font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,#B49BFF,var(--mint));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-chip span{font-size:13px;color:var(--muted);}
.cat-watermark{
  position:absolute;
  right:3%;
  bottom:-38px;
  font-size:clamp(120px,20vw,230px);
  font-weight:800;
  line-height:1;
  color:rgba(122,77,255,.08);
  font-variant-numeric:tabular-nums;
  pointer-events:none;
  user-select:none;
  z-index:1;
}

/* ============ 板块标题 ============ */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--mint));
}
.section-desc{
  max-width:600px;
  color:var(--muted);
  font-size:15px;
  margin-top:12px;
  padding-left:16px;
}
.link-more{
  font-size:14px;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
}
.link-more:hover{color:var(--mint);}

/* ============ 时间轴 ============ */
.timeline{position:relative;}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:24px;
  padding-bottom:28px;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:31px;
  top:52px;
  bottom:-2px;
  width:2px;
  background:linear-gradient(180deg,rgba(122,77,255,.55),rgba(122,77,255,.06));
}
.tl-item:last-child{padding-bottom:0;}
.tl-item:last-child::before{display:none;}
.tl-node{
  width:64px;height:64px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:#fff;
  background:var(--surface);
  border:1px solid var(--line-strong);
  position:relative;
  z-index:2;
  box-shadow:0 8px 20px rgba(0,0,0,.4);
}
.tl-item:first-child .tl-node,
.tl-item:hover .tl-node{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  border-color:transparent;
  box-shadow:var(--shadow-brand);
}
.tl-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease;
  max-width:820px;
}
.tl-card:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(122,77,255,.35),var(--shadow-hover);
}
.tl-card h3{margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tl-card p{color:var(--muted);font-size:15px;}
.tl-points{
  margin-top:16px;
  display:flex;
  flex-direction:column;
  gap:8px;
  border-top:1px dashed var(--line);
  padding-top:16px;
}
.tl-points li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:#C9C1E0;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--mint);
  transform:rotate(45deg);
}

/* ============ 检查清单 ============ */
.check-layout{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:start;
}
.check-list{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  overflow:hidden;
}
.check-row{
  display:grid;
  grid-template-columns:28px 1fr auto;
  align-items:center;
  gap:14px;
  padding:18px 22px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
  min-height:64px;
}
.check-row:last-child{border-bottom:none;}
.check-row:hover{background:rgba(255,255,255,.03);}
.check-row.is-done{filter:saturate(.7);}
.box{
  width:22px;height:22px;
  border-radius:6px;
  border:1.5px solid var(--line-strong);
  display:flex;
  align-items:center;
  justify-content:center;
  color:transparent;
  flex:0 0 auto;
}
.check-row.is-done .box{
  background:var(--mint);
  border-color:var(--mint);
  color:#0E1618;
}
.check-row .ck-title{font-size:15px;}
.check-row.is-done .ck-title{color:var(--muted);}
.progress-panel{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(122,77,255,.14),rgba(26,20,40,.6));
  padding:26px;
  box-shadow:var(--shadow-card);
}
.progress-panel h3{margin-bottom:8px;}
.progress-panel p{color:var(--muted);font-size:14px;}
.progress-track{
  position:relative;
  height:8px;
  border-radius:999px;
  background:var(--line);
  margin:22px 0 14px;
  overflow:visible;
}
.progress-fill{
  position:absolute;
  left:0;top:0;bottom:0;
  border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--mint));
  box-shadow:0 0 14px rgba(34,224,161,.5);
}
.progress-fill::after{
  content:"";
  position:absolute;
  right:-5px;top:50%;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--mint);
  transform:translateY(-50%);
  box-shadow:0 0 12px rgba(34,224,161,.9);
}
.progress-meta{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}
.progress-num{
  font-size:26px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--mint);
  line-height:1.1;
}

/* ============ 误区对照行 ============ */
.pitfall-list{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.pitfall-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.pitfall-row:last-child{border-bottom:none;}
.pitfall-row:hover{background:rgba(255,255,255,.025);}
.pitfall-wrong{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#E4DDF6;}
.pitfall-right{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--muted);}
.pitfall-wrong .dot{
  width:22px;height:22px;flex:0 0 auto;border-radius:7px;
  background:rgba(255,92,108,.16);color:var(--danger);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.pitfall-right .dot{
  width:22px;height:22px;flex:0 0 auto;border-radius:7px;
  background:rgba(34,224,161,.16);color:var(--mint);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}

/* ============ 数据条 ============ */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-cell{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  padding:26px 22px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.stat-cell:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(122,77,255,.35),var(--shadow-card);}
.stat-cell b{
  display:block;
  font-size:32px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  background:linear-gradient(135deg,#fff,#B49BFF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-cell span{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ============ 列表行 ============ */
.row-list{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.row-item{
  display:grid;
  grid-template-columns:96px 1fr 28px;
  gap:18px;
  align-items:center;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  transition:background-color .18s ease;
}
.row-item:last-child{border-bottom:none;}
.row-item:hover{background:rgba(255,255,255,.035);}
.thumb{
  width:96px;height:72px;
  border-radius:var(--radius-img);
  overflow:hidden;
  background:linear-gradient(135deg,var(--bg1),rgba(122,77,255,.18));
  flex:0 0 auto;
}
.thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .18s ease-out;}
.row-item:hover .thumb img{transform:scale(1.03);}
.row-title{
  font-size:16px;
  font-weight:600;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  line-height:1.5;
}
.row-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:8px;
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
  flex-wrap:wrap;
}
.row-arrow{color:var(--muted);font-size:18px;line-height:1;text-align:right;transition:transform .18s ease,color .18s ease;}
.row-item:hover .row-arrow{transform:translateX(3px);color:var(--brand);}

/* ============ FAQ ============ */
.faq-list{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:14px;
  min-height:56px;
  padding:14px 22px;
  font-size:16px;
  font-weight:600;
  transition:background-color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(255,255,255,.03);}
.faq-num{
  width:32px;height:32px;
  flex:0 0 auto;
  border-radius:9px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  background:rgba(122,77,255,.12);
  color:#B49BFF;
  transition:background-color .2s ease,color .2s ease;
}
.faq-item[open] .faq-num{background:var(--brand);color:#fff;}
.faq-item summary .arrow{
  margin-left:auto;
  color:var(--muted);
  transition:transform .22s ease,color .22s ease;
  font-size:14px;
  line-height:1;
}
.faq-item[open] summary .arrow{transform:rotate(180deg);color:var(--brand);}
.faq-body{padding:0 22px 22px 68px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--bg1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(122,77,255,.18) 0%,rgba(122,77,255,.04) 40%,rgba(34,224,161,.1) 100%);
  clip-path:polygon(0 0,100% 12%,100% 100%,0 88%);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{margin-bottom:10px;}
.cta-inner p{color:var(--muted);font-size:15px;max-width:52em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg0);
  border-top:1px solid var(--line);
  padding:64px 0 32px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.foot-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  margin-bottom:14px;
}
.foot-grid p{color:var(--muted);font-size:14px;max-width:34em;}
.foot-col h4{color:#fff;margin-bottom:16px;font-size:15px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{
  font-size:14px;
  color:var(--muted);
  display:inline-flex;
  align-items:center;
  min-height:32px;
}
.foot-col a:hover{color:var(--brand);}
.foot-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:#7E7695;
}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(18,14,27,.95);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.mobile-tabbar ul{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  height:60px;
}
.mobile-tabbar a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:3px;
  font-size:11px;
  color:#8E86A8;
  min-height:44px;
}
.mobile-tabbar a svg{width:22px;height:22px;stroke-width:1.75;}
.mobile-tabbar a.is-active{color:var(--brand);font-weight:700;}
.mobile-tabbar a.is-active::before{
  content:"";
  position:absolute;
  top:4px;
  width:4px;height:4px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 8px rgba(122,77,255,.9);
}

/* ============ 滚动渐入 ============ */
html.js .reveal{opacity:0;transform:translateY(16px);}
html.js .reveal.is-in{opacity:1;transform:none;transition:opacity .55s ease,transform .55s ease;}
@media (prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;}
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* ============ 断点：≤1024 ============ */
@media (max-width:1024px){
  :root{--gap-section:72px;}
  .nav-links a{padding:0 10px;font-size:14px;}
  .check-layout{grid-template-columns:1fr;gap:28px;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

/* ============ 断点：≤768 ============ */
@media (max-width:768px){
  :root{--gap-section:56px;--nav-h:56px;}
  body{padding-bottom:76px;}
  .container{padding:0 16px;}
  .nav-links{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .mobile-tabbar{display:block;}
  .cat-hero-inner{padding:6px 16px 56px;}
  .cat-watermark{bottom:-20px;right:2%;}
  .tl-item{grid-template-columns:48px 1fr;gap:14px;padding-bottom:20px;}
  .tl-node{width:48px;height:48px;font-size:15px;}
  .tl-item::before{left:23px;top:40px;}
  .tl-card{padding:18px;}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat-cell{padding:20px 16px;}
  .stat-cell b{font-size:26px;}
  .pitfall-row{grid-template-columns:1fr;gap:14px;padding:18px;}
  .row-item{grid-template-columns:80px 1fr 20px;gap:14px;padding:14px 16px;}
  .thumb{width:80px;height:64px;}
  .faq-body{padding:0 18px 20px 18px;}
  .faq-item summary{padding:12px 18px;font-size:15px;}
  .cta-band{padding:44px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .social{
    display:flex;
  }
}

/* ============ 断点：≤520 ============ */
@media (max-width:520px){
  h3{font-size:18px;}
  .cat-lead{font-size:15px;}
  .hero-stats{gap:8px;}
  .stat-chip{padding:10px 14px;flex:1 1 calc(50% - 8px);}
  .stat-chip b{font-size:19px;}
  .section-head{margin-bottom:28px;}
  .stat-band{grid-template-columns:1fr;}
  .row-item{grid-template-columns:72px 1fr 16px;}
  .thumb{width:72px;height:58px;}
  .row-title{font-size:15px;}
  .progress-num{font-size:22px;}
  .btn{width:100%;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .link-more{min-height:40px;}
}

/* ============ 断点：≥1440 ============ */
@media (min-width:1440px){
  :root{--gap-section:104px;}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --brand:#7A4DFF;
  --brand-deep:#5A2FE0;
  --mint:#22E0A1;
  --orange:#FF8A3D;
  --bg0:#120E1B;
  --bg1:#1A1428;
  --surface:#221B36;
  --line:rgba(255,255,255,.08);
  --text:#EDE9FA;
  --muted:#A79FC0;
  --danger:#FF5C6C;
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --shadow:0 12px 32px rgba(0,0,0,.45);
  --shadow-hover:0 18px 40px rgba(0,0,0,.55);
  --container:1200px;
  --sp:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:
    radial-gradient(900px 480px at 82% -6%, rgba(122,77,255,.20), transparent 62%),
    radial-gradient(700px 420px at 8% 12%, rgba(34,224,161,.10), transparent 60%),
    var(--bg0);
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease)}
a:hover{color:#fff}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(122,77,255,.42);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg0);
  border-bottom:1px solid var(--line);
  transition:background-color .25s var(--ease),box-shadow .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(18,14,27,.86);
  backdrop-filter:blur(12px);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;letter-spacing:.3px;color:#fff;
  white-space:nowrap;
}
.brand .spark{
  width:10px;height:10px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--mint));
  box-shadow:0 0 14px rgba(122,77,255,.85);
  transform:rotate(12deg);
}
.nav-links{
  display:flex;align-items:center;gap:6px;
  margin-left:12px;
}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  height:72px;padding:0 14px;
  font-size:15px;color:var(--muted);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:20px;
  width:0;height:3px;border-radius:999px;background:var(--brand);
  transform:translateX(-50%);
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:20px}
.nav-links a.is-active{color:#fff;font-weight:700}
.nav-links a.is-active::after{width:20px}
.header-cta{margin-left:auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--text);
}
.nav-toggle svg{width:22px;height:22px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.2px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;
  box-shadow:0 6px 18px rgba(122,77,255,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 8px 20px rgba(122,77,255,.35);color:#fff}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{
  background:transparent;border:1px solid var(--line);color:var(--text);
}
.btn-ghost:hover{border-color:rgba(122,77,255,.65);color:#fff}
.btn-ghost:active{transform:translateY(0);background:rgba(255,255,255,.03)}
.btn-pill{border-radius:999px;padding:0 26px}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;filter:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.8}
.btn .spin{
  width:16px;height:16px;flex:0 0 16px;
  border:2px solid rgba(255,255,255,.35);
  border-top-color:#fff;border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:999px;
  font-size:12px;font-weight:700;line-height:1.6;
  white-space:nowrap;
}
.badge-open{background:rgba(34,224,161,.15);color:var(--mint)}
.badge-doing{background:rgba(122,77,255,.15);color:#B79CFF}
.badge-end{background:rgba(107,100,128,.20);color:var(--muted)}
.badge-hot{background:rgba(255,138,61,.15);color:var(--orange)}
.tag{
  display:inline-block;padding:4px 12px;border-radius:999px;
  border:1px solid var(--line);font-size:12px;color:var(--muted);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.tag:hover{border-color:rgba(122,77,255,.6);color:#fff}

/* ===== 倒计时条 ===== */
.countdown-bar{
  background:linear-gradient(90deg,rgba(255,138,61,.14),rgba(255,138,61,.06));
  border-bottom:1px solid rgba(255,138,61,.22);
}
.countdown-inner{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  min-height:48px;padding-top:8px;padding-bottom:8px;
  font-size:13px;
}
.cd-dot{
  width:8px;height:8px;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 4px rgba(255,138,61,.18);
  animation:pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.cd-label{color:var(--orange);font-weight:700}
.cd-time{
  color:var(--orange);font-weight:800;font-variant-numeric:tabular-nums;
  font-size:14px;letter-spacing:.5px;
}
.cd-note{color:var(--muted);margin-left:auto}

/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:18px 0 0;
  font-size:13px;color:var(--muted);
}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#B79CFF;font-weight:700}

/* ===== Hero ===== */
.hero-cat{
  position:relative;
  padding:20px 0 72px;
}
.hero-cat::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(160deg,rgba(18,14,27,.94),rgba(18,14,27,.76) 52%,rgba(18,14,27,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  z-index:-1;
}
.hero-grid{
  display:grid;grid-template-columns:1.35fr .65fr;
  gap:40px;align-items:end;
  padding-top:34px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;color:var(--mint);font-weight:700;
  margin-bottom:16px;
}
.hero-title{
  font-size:clamp(28px,5vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:20px;
}
.h1-brand{
  display:block;
  font-size:clamp(14px,1.7vw,17px);
  font-weight:700;
  letter-spacing:3px;
  color:var(--brand);
  margin-bottom:10px;
}
.hero-lead{
  max-width:620px;
  font-size:16px;color:var(--muted);line-height:1.9;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-mark{
  position:relative;
  min-height:180px;
  display:flex;align-items:flex-end;justify-content:flex-end;
}
.hero-mark .wm{
  font-size:clamp(110px,13vw,190px);
  font-weight:900;line-height:.8;
  color:rgba(255,255,255,.06);
  font-variant-numeric:tabular-nums;
  user-select:none;
}
.hero-mark .mark-card{
  position:absolute;top:0;right:0;
  width:100%;max-width:230px;
  padding:18px 20px;
  border-radius:var(--r-card);
  background:rgba(34,27,54,.86);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-mark .mark-card strong{display:block;font-size:26px;font-variant-numeric:tabular-nums}
.hero-mark .mark-card span{font-size:13px;color:var(--muted)}

/* ===== 通用板块 ===== */
.section{padding:var(--sp) 0}
.section-alt{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:40px;
}
.section-head h2{
  position:relative;
  font-size:clamp(22px,3.2vw,34px);
  line-height:1.3;font-weight:800;letter-spacing:-.3px;
  padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8%;bottom:8%;
  width:4px;border-radius:999px;
  background:linear-gradient(180deg,var(--brand),var(--mint));
}
.section-head p{font-size:14px;color:var(--muted);margin-top:10px;padding-left:16px;max-width:640px}
.link-more{font-size:14px;color:#B79CFF;font-weight:700;white-space:nowrap}
.link-more:hover{color:#fff}

/* ===== 活动列表行 ===== */
.act-list{display:flex;flex-direction:column;gap:14px}
.act-row{
  display:grid;
  grid-template-columns:96px 1fr auto;
  gap:20px;align-items:center;
  padding:18px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.act-row:hover{
  transform:translateY(-2px);
  border-color:rgba(122,77,255,.35);
  box-shadow:0 0 0 1px rgba(122,77,255,.35),var(--shadow-hover);
  background:#251E3B;
}
.act-thumb{
  width:96px;height:72px;overflow:hidden;border-radius:var(--r-img);
  background:linear-gradient(135deg,var(--bg1),rgba(122,77,255,.18));
}
.act-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out}
.act-row:hover .act-thumb img{transform:scale(1.05)}
.act-main{min-width:0}
.act-main h3{
  font-size:17px;font-weight:700;line-height:1.45;
  margin-bottom:8px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.act-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.act-right{display:flex;align-items:center;gap:14px}
.act-arrow{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.act-arrow svg{width:16px;height:16px}
.act-row:hover .act-arrow{transform:translateX(4px);border-color:rgba(122,77,255,.6);color:#fff}

/* ===== 奖励档位 ===== */
.tier-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
}
.tier-card{
  padding:22px 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.tier-card:hover{transform:translateY(-2px);border-color:rgba(122,77,255,.35)}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.tier-top h3{font-size:18px;font-weight:700}
.tier-top .lvl{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:28px;padding:0 10px;border-radius:999px;
  background:rgba(255,138,61,.14);color:var(--orange);
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
}
.tier-desc{font-size:14px;color:var(--muted);margin-bottom:16px;line-height:1.8}
.progress{
  display:flex;align-items:center;gap:12px;
}
.progress-track{
  position:relative;flex:1;height:8px;border-radius:999px;
  background:var(--line);overflow:hidden;
}
.progress-fill{
  position:absolute;left:0;top:0;bottom:0;border-radius:999px;
  background:linear-gradient(90deg,var(--brand),var(--mint));
}
.progress-fill.is-empty{width:0}
.progress-val{
  min-width:52px;text-align:right;
  font-size:13px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;
}
.progress-note{font-size:12px;color:var(--muted);margin-top:10px}

/* ===== 领取流程 ===== */
.flow{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;
}
.flow::before{
  content:"";position:absolute;left:6%;right:6%;top:20px;
  border-top:1px dashed rgba(255,255,255,.16);
}
.flow-step{position:relative;padding-top:56px}
.flow-step .node{
  position:absolute;top:0;left:0;
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface);
  border:1px solid rgba(122,77,255,.45);
  color:#B79CFF;font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(18,14,27,.9);
}
.flow-step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.85}

/* ===== 规则要点 ===== */
.rule-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rule-item{
  display:flex;gap:16px;
  padding:20px 22px;
  border-radius:var(--r-card);
  background:var(--bg1);
  border:1px solid var(--line);
}
.rule-item .ico{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(122,77,255,.14);color:#B79CFF;
}
.rule-item .ico svg{width:22px;height:22px}
.rule-item h3{font-size:16px;font-weight:700;margin-bottom:6px}
.rule-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* ===== 提醒表单 ===== */
.notify-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:36px;
  border-radius:var(--r-card);
  background:linear-gradient(150deg,rgba(122,77,255,.14),rgba(34,224,161,.06)),var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.notify-wrap h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;line-height:1.35;margin-bottom:14px}
.notify-wrap p{font-size:14px;color:var(--muted);line-height:1.9}
.form-field{margin-bottom:16px}
.form-field label{
  display:block;font-size:13px;color:var(--muted);margin-bottom:8px;
}
.form-field .req{color:var(--orange);margin-left:2px}
.form-field input{
  width:100%;height:48px;padding:0 16px;
  border-radius:12px;border:1px solid var(--line);
  background:var(--bg1);color:var(--text);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-field input::placeholder{color:#6B6480}
.form-field input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(122,77,255,.20);
}
.form-field.has-error input{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,92,108,.16)}
.form-error{display:none;font-size:13px;color:var(--danger);margin-top:6px}
.form-field.has-error .form-error{display:block}
.form-hint{font-size:12px;color:var(--muted);margin-top:12px}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);overflow:hidden;
  transition:border-color .18s var(--ease);
}
.faq-item[open]{border-color:rgba(122,77,255,.4)}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  min-height:56px;padding:8px 20px;
  list-style:none;cursor:pointer;font-size:16px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .q-no{
  flex:0 0 32px;width:32px;height:32px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(122,77,255,.14);color:#B79CFF;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.faq-item[open] .q-no{background:var(--brand);color:#fff}
.faq-item summary .chev{
  margin-left:auto;color:var(--muted);
  transition:transform .2s var(--ease);
}
.faq-item summary .chev svg{width:18px;height:18px;display:block}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-body{padding:0 20px 20px 66px;font-size:14px;color:var(--muted);line-height:1.9}

/* ===== CTA 条 ===== */
.cta-band{
  position:relative;
  padding:40px 0;
  background:linear-gradient(115deg,rgba(122,77,255,.16),rgba(34,224,161,.06)),var(--bg1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  clip-path:polygon(0 4%,100% 0,100% 96%,0 100%);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;margin-bottom:8px}
.cta-inner p{font-size:14px;color:var(--muted)}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg1);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:0;
}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid var(--line);
}
.foot-brand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:19px;font-weight:800;color:#fff;margin-bottom:14px;
}
.foot-brand .spark{
  width:10px;height:10px;border-radius:3px;
  background:linear-gradient(135deg,var(--brand),var(--mint));
  transform:rotate(12deg);
}
.site-footer p{font-size:14px;color:var(--muted);line-height:1.9;max-width:340px}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--muted)}
.foot-col a:hover{color:#fff}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;color:var(--muted);
}

/* ===== 移动底部 Tab ===== */
.tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(18,14,27,.96);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.tabbar ul{display:flex;height:60px}
.tabbar li{flex:1}
.tabbar a{
  position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  height:100%;font-size:11px;color:#8E86A8;
}
.tabbar a svg{width:22px;height:22px}
.tabbar a.is-active{color:var(--brand);font-weight:800}
.tabbar a.is-active::before{
  content:"";position:absolute;top:6px;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px rgba(122,77,255,.9);
}

/* ===== 抽屉 ===== */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(18,14,27,.98);
  backdrop-filter:blur(6px);
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  display:flex;flex-direction:column;
  padding:18px 20px calc(28px + env(safe-area-inset-bottom));
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;margin-bottom:10px}
.drawer-head .close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text);
}
.drawer-head .close svg{width:20px;height:20px}
.drawer nav a{
  display:flex;align-items:center;gap:14px;
  min-height:56px;padding:0 14px;border-radius:14px;
  font-size:16px;font-weight:600;color:var(--muted);
  border:1px solid transparent;
}
.drawer nav a svg{width:20px;height:20px}
.drawer nav a .arw{margin-left:auto;color:#6B6480}
.drawer nav a.is-active{color:#fff;background:rgba(122,77,255,.14);border-color:rgba(122,77,255,.32)}
.drawer .drawer-cta{margin-top:22px}

/* ===== 滚动渐入 ===== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ===== 断点 ===== */
@media (max-width:1024px){
  :root{--sp:72px}
  .nav-links{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
  .hero-mark{justify-content:flex-start;min-height:0}
  .hero-mark .mark-card{position:static;max-width:none;width:100%;margin-bottom:6px}
  .hero-mark .wm{font-size:88px}
  .tier-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:repeat(2,1fr);gap:24px}
  .flow::before{display:none}
  .notify-wrap{grid-template-columns:1fr;gap:26px;padding:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}

@media (max-width:768px){
  :root{--sp:56px}
  body{padding-bottom:76px}
  .container{padding:0 16px}
  .tabbar{display:block}
  .header-inner{height:56px}
  .hero-cat{padding-bottom:48px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:28px}
  .act-row{grid-template-columns:72px 1fr;gap:14px;padding:16px}
  .act-thumb{width:72px;height:56px}
  .act-right{grid-column:1 / -1;justify-content:space-between;padding-left:86px;margin-top:-4px}
  .tier-grid{grid-template-columns:1fr}
  .rule-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:22px}
  .flow-step{padding-top:48px;padding-left:56px}
  .flow-step .node{top:0}
  .faq-body{padding:0 18px 18px 18px}
  .cta-band{padding:32px 0;clip-path:polygon(0 2%,100% 0,100% 98%,0 100%)}
  .cta-inner .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .hero-actions .btn{width:100%}
}

@media (max-width:480px){
  .brand{font-size:17px}
  .act-row{grid-template-columns:1fr}
  .act-thumb{width:100%;height:150px}
  .act-right{padding-left:0;justify-content:flex-start;gap:12px}
  .hero-mark .wm{font-size:64px}
  .section{padding:52px 0}
}

@media (min-width:1440px){
  .container{max-width:1200px}
}