/* roulang page: index */
:root{
  --primary:#19E3B1;
  --primary-deep:#12C9C0;
  --accent:#FF8A3C;
  --violet:#7C5CFF;
  --bg:#060A14;
  --bg-2:#0D1526;
  --text:#E6EEF7;
  --muted:#93A4BD;
  --dim:#5A6B85;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --r-card:18px;
  --r-block:24px;
  --r-btn:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-hover:0 0 0 1px rgba(25,227,177,.35), 0 0 40px -12px rgba(25,227,177,.45);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1100px 560px at 12% -8%, rgba(25,227,177,.16), transparent 62%),
    radial-gradient(900px 520px at 92% 2%, rgba(124,92,255,.14), transparent 60%),
    linear-gradient(180deg,#060A14 0%,#0D1526 62%,#060A14 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(78px + env(safe-area-inset-bottom));
}
@media (min-width:1024px){ body{padding-bottom:0} }
img{max-width:100%;display:block;border-radius:14px}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.25;font-weight:700;letter-spacing:.005em}
h1{font-size:28px;line-height:1.28}
h2{font-size:24px}
h3{font-size:18px;font-weight:600}
p{color:var(--muted)}
::selection{background:rgba(25,227,177,.32);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 32px} }
.section{padding:56px 0}
@media (min-width:1024px){ .section{padding:96px 0} }
.section-head{max-width:720px;margin-bottom:28px}
.section-head h2{font-size:24px}
@media (min-width:1024px){ .section-head h2{font-size:30px} }
.section-head p{margin-top:10px;font-size:15px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;color:var(--primary);font-weight:600;margin-bottom:12px}
.eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-deep))}

/* 玻璃 / 卡片 / 标签 / 按钮 */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card-lift:hover,.card-lift:focus-within{
  transform:translateY(-4px);
  border-color:rgba(25,227,177,.4);
  box-shadow:var(--shadow-card),var(--shadow-hover);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.02em;font-weight:600;
  padding:4px 12px;border-radius:999px;
  color:var(--primary);
  background:rgba(25,227,177,.10);
  border:1px solid rgba(25,227,177,.32);
}
.tag-accent{color:var(--accent);background:rgba(255,138,60,.10);border-color:rgba(255,138,60,.34)}
.tag-violet{color:#B6A6FF;background:rgba(124,92,255,.12);border-color:rgba(124,92,255,.36)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;
  padding:13px 26px;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.glow-btn{
  background:linear-gradient(135deg,#19E3B1,#12C9C0);
  color:#04120E;
  box-shadow:0 8px 28px -10px rgba(25,227,177,.6);
}
.glow-btn:hover{
  color:#04120E;filter:brightness(1.06);transform:translateY(-1px);
  box-shadow:0 12px 36px -10px rgba(25,227,177,.78);
}
.glow-btn:active{transform:translateY(1px);box-shadow:none}
.ghost-btn{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.18);
  color:var(--text);
  backdrop-filter:blur(12px);
}
.ghost-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.ghost-btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
@media (max-width:520px){ .btn{width:100%} .btn-sm{width:100%} }

/* 头部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(6,10,20,.55);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.78);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:66px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;letter-spacing:.02em;color:#04120E;
  background:linear-gradient(135deg,#19E3B1,#12C9C0);
  box-shadow:0 8px 22px -10px rgba(25,227,177,.7);
}
.logo-text{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--dim);letter-spacing:.02em}
.main-nav{display:none;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;padding:8px 12px;font-size:14px;color:var(--muted);border-radius:10px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-actions{display:none;align-items:center;gap:10px;margin-left:auto}
.menu-toggle{
  margin-left:auto;width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;color:var(--text);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}
@media (min-width:1024px){
  .main-nav{display:flex}
  .nav-actions{display:flex}
  .menu-toggle{display:none}
}

/* Hero */
.hero{position:relative;padding:112px 0 48px;overflow:hidden}
@media (min-width:1024px){ .hero{padding:168px 0 88px} }
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.72) 0%,rgba(6,10,20,.88) 55%,rgba(6,10,20,.97) 100%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
.hero-visual{order:1}
.hero-copy{order:2}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:48px}
  .hero-copy{order:1}
  .hero-visual{order:2}
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--primary);background:rgba(25,227,177,.10);
  border:1px solid rgba(25,227,177,.32);
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(25,227,177,.9)}
.hero h1{margin-top:18px;font-size:28px;line-height:1.3}
@media (min-width:1024px){ .hero h1{font-size:40px;line-height:1.22} }
.hero-sub{margin-top:16px;font-size:16px;color:var(--muted);max-width:520px}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px}
.hero-stats li{
  padding:9px 16px;border-radius:999px;font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.06);border:1px solid var(--line);backdrop-filter:blur(14px);
}
.hero-stats li strong{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-block);box-shadow:var(--shadow-card)}
.hero-float{
  position:absolute;left:16px;bottom:-22px;right:16px;
  padding:14px 18px;border-radius:16px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
}
.hero-float span{font-size:13px;color:var(--muted)}
.hero-float strong{color:var(--primary);font-weight:700;font-variant-numeric:tabular-nums}

/* 快捷入口条 */
.quick-bar{
  display:flex;gap:10px;overflow-x:auto;padding:6px 20px 14px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.quick-bar::-webkit-scrollbar{height:0}
@media (min-width:1024px){ .quick-bar{padding:6px 0 0;flex-wrap:wrap;justify-content:center;max-width:1200px;margin:0 auto} }
.pill{
  scroll-snap-align:start;flex:0 0 auto;
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;font-size:14px;font-weight:500;color:var(--muted);
  transition:all .2s var(--ease);
}
.pill:hover{color:var(--primary);border-color:rgba(25,227,177,.45);transform:translateY(-2px)}

/* 分栏与网格 */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media (min-width:1024px){
  .split-5-7{grid-template-columns:5fr 7fr;gap:48px}
}
.grid-3{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){ .grid-3{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .grid-3{grid-template-columns:repeat(3,1fr)} }
.bullets li{position:relative;padding-left:26px;margin-bottom:14px;color:var(--muted);font-size:15px}
.bullets li::before{
  content:"";position:absolute;left:0;top:10px;width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));box-shadow:0 0 12px rgba(25,227,177,.6);
}
.bullets strong{color:var(--text);font-weight:600}

/* 表格 */
.table-wrap{overflow-x:auto;border-radius:var(--r-card);border:1px solid var(--line);background:rgba(255,255,255,.03)}
table{width:100%;border-collapse:collapse;min-width:520px}
th,td{padding:14px 16px;text-align:left;font-size:14px;border-bottom:1px solid rgba(255,255,255,.06)}
thead th{background:rgba(25,227,177,.08);color:var(--text);font-weight:600;font-size:13px;letter-spacing:.02em}
tbody tr:last-child td{border-bottom:none}
tbody td{color:var(--muted)}
tbody td:first-child{color:var(--text);font-weight:500}
tr.recommend td{background:rgba(25,227,177,.05)}
tr.recommend td:first-child{box-shadow:inset 3px 0 0 var(--primary)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow:hover{gap:10px}

/* 等级阶梯 */
.levels{display:grid;grid-template-columns:1fr;gap:18px;margin-top:32px;position:relative}
@media (min-width:1024px){ .levels{grid-template-columns:repeat(4,1fr);gap:20px} }
.level{
  position:relative;padding:24px 22px;border-radius:var(--r-card);
  border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  box-shadow:var(--shadow-card);overflow:hidden;
}
.level::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--violet),var(--primary));
}
.level .lv-no{font-size:34px;font-weight:700;color:rgba(255,255,255,.10);line-height:1;font-variant-numeric:tabular-nums}
.level h3{margin-top:12px;font-size:17px}
.level p{margin-top:8px;font-size:14px;color:var(--muted)}
@media (max-width:1023px){
  .levels{gap:0}
  .level{margin-left:18px;border-left:none}
  .levels::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:rgba(255,255,255,.10)}
  .level::after{content:"";position:absolute;left:-18px;top:30px;width:12px;height:12px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px rgba(25,227,177,.8)}
}

/* 不等高内容网格 */
.masonry{display:grid;grid-template-columns:1fr;gap:20px;margin-top:32px}
@media (min-width:640px){ .masonry{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){
  .masonry{grid-template-columns:repeat(6,1fr)}
  .masonry .m-large{grid-column:span 3}
  .masonry .m-small{grid-column:span 2}
}
.content-card{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--shadow-card);background:rgba(255,255,255,.03)}
.content-card img{width:100%;height:100%;object-fit:cover;border-radius:0;opacity:.82;transition:transform .3s var(--ease)}
.content-card:hover img{transform:scale(1.03)}
.m-large .content-card-inner,.m-large{min-height:280px}
.content-card-inner{position:relative;height:100%;min-height:220px;display:flex;flex-direction:column;justify-content:flex-end;padding:20px}
.content-card-inner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.10) 20%,rgba(6,10,20,.88) 100%);
}
.content-card-inner > *{position:relative;z-index:2}
.content-card-inner h3{font-size:17px;margin-top:10px}
.content-card-inner p{font-size:13px;margin-top:6px;color:var(--muted)}
.lock-overlay{
  position:absolute;inset:0;z-index:3;display:grid;place-items:center;
  background:rgba(25,227,177,.12);backdrop-filter:blur(2px);
}
.lock-overlay span{font-size:12px;font-weight:600;padding:6px 14px;border-radius:999px;color:var(--primary);background:rgba(6,10,20,.72);border:1px solid rgba(25,227,177,.45)}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (min-width:1024px){ .stats{grid-template-columns:repeat(4,1fr)} }
.stat{padding:22px 20px;border-radius:var(--r-card);text-align:left}
.stat b{display:block;font-size:28px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{font-size:13px;color:var(--muted)}
.quote{padding:22px;border-radius:var(--r-card);font-size:14px;color:var(--muted)}
.quote strong{display:block;color:var(--text);font-size:14px;margin-bottom:8px}

/* FAQ */
.faq-list{margin-top:24px;display:grid;gap:12px}
.faq-list details{
  border-radius:var(--r-card);border:1px solid var(--line);background:rgba(255,255,255,.04);
  padding:0 20px;overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-list details[open]{border-color:rgba(25,227,177,.4);box-shadow:var(--shadow-hover)}
.faq-list summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;
  padding:18px 0;font-weight:600;font-size:15px;color:var(--text);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::before{
  content:"?";flex:0 0 26px;height:26px;border-radius:50%;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--primary);background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.35);
}
.faq-list summary::after{
  content:"+";margin-left:auto;font-size:20px;color:var(--primary);transition:transform .24s var(--ease);
}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list .faq-body{padding:0 0 20px 38px;font-size:14.5px;color:var(--muted)}

/* 最新信息 */
.cms-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:30px}
@media (min-width:640px){ .cms-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .cms-grid{grid-template-columns:repeat(3,1fr)} }
.post-card{display:flex;flex-direction:column;padding:22px}
.post-link{display:block}
.post-card h3{font-size:16.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease)}
.post-card:hover h3{color:var(--primary)}
.post-card p{margin-top:10px;font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:18px;padding-top:14px;border-top:1px solid rgba(255,255,255,.07);display:flex;align-items:center;gap:12px;font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums}
.empty-state{
  margin-top:30px;padding:48px 24px;text-align:center;border-radius:var(--r-block);
  border:1px dashed rgba(255,255,255,.16);background:rgba(255,255,255,.03);
}
.empty-state b{display:block;font-size:16px;color:var(--text);margin-bottom:6px}
.empty-state p{font-size:14px;margin-bottom:18px}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-block);
  padding:44px 24px;text-align:center;
  background:linear-gradient(135deg,rgba(25,227,177,.16),rgba(124,92,255,.16)),rgba(255,255,255,.04);
  border:1px solid rgba(25,227,177,.28);
}
.cta-band h2{font-size:24px}
@media (min-width:1024px){ .cta-band{padding:64px 48px} .cta-band h2{font-size:30px} }
.cta-band p{margin:14px auto 26px;max-width:620px;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* 页脚 */
.site-footer{margin-top:64px;border-top:1px solid var(--line);background:rgba(6,10,20,.6);padding:48px 0 32px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:32px} }
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;max-width:340px}
.footer-col h3{font-size:14px;color:var(--text);margin-bottom:14px;font-weight:600}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-bottom{
  margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--dim);
}

/* 移动端底部 Tab */
.mobile-tabs{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:grid;grid-template-columns:repeat(5,1fr);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));
  background:rgba(9,14,26,.92);
  border-top:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.mobile-tabs a{
  display:flex;flex-direction:column;align-items:center;gap:4px;
  font-size:12px;color:var(--dim);padding:6px 2px;border-radius:12px;
}
.mobile-tabs a svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7}
.mobile-tabs a.active{color:var(--primary)}
.mobile-tabs a.active svg{fill:rgba(25,227,177,.16)}
.mobile-tabs a.tab-cta{color:var(--primary);font-weight:600}
.mobile-tabs a.tab-cta svg{stroke:var(--primary)}
@media (min-width:1024px){ .mobile-tabs{display:none} }

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .card-lift:hover{transform:none}
}

/* roulang page: article */
:root{
  --ink:#060A14;
  --ink-2:#0D1526;
  --ink-3:#0A1120;
  --primary:#19E3B1;
  --primary-2:#12C9C0;
  --primary-soft:rgba(25,227,177,.12);
  --accent:#FF8A3C;
  --violet:#7C5CFF;
  --text:#E6EEF7;
  --muted:#93A4BD;
  --dim:#5A6B85;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --r-card:18px;
  --r-block:24px;
  --r-btn:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-hover:inset 0 1px 0 rgba(255,255,255,.08), 0 0 0 1px rgba(25,227,177,.35), 0 0 40px -12px rgba(25,227,177,.45);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(25,227,177,.14), transparent 62%),
    radial-gradient(760px 460px at 6% 12%, rgba(124,92,255,.12), transparent 60%),
    linear-gradient(180deg,#060A14 0%,#0D1526 60%,#060A14 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.5;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border:1px solid rgba(255,255,255,.08);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(25,227,177,.3);color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:2;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(6,10,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,20,.9);box-shadow:0 14px 34px -24px rgba(0,0,0,.95);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,#19E3B1,#12C9C0);
  color:#04120E;font-weight:800;font-size:14px;line-height:1;
  box-shadow:0 8px 26px -10px rgba(25,227,177,.75);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;font-weight:700;font-size:15px;letter-spacing:.01em;}
.logo-text small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.02em;margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;
  color:var(--muted);font-size:14px;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(25,227,177,.8);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:11px 22px;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:all 220ms var(--ease);white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:10px;}
.btn-primary{
  background:linear-gradient(135deg,#19E3B1 0%,#12C9C0 100%);
  color:#04120E;box-shadow:0 8px 28px -10px rgba(25,227,177,.6);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 12px 34px -8px rgba(25,227,177,.75);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.18);color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(25,227,177,.08);}
.btn-block{width:100%;}

/* ============ 面包屑 & 文章头 ============ */
.article-hero{
  position:relative;
  padding:52px 0 40px;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.55),rgba(6,10,20,.92)),
             url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.5;z-index:0;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:22px;}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--primary);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12px;letter-spacing:.02em;
  background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.35);color:var(--primary);
}
.tag-accent{background:rgba(255,138,60,.12);border-color:rgba(255,138,60,.35);color:var(--accent);}
.tag-violet{background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.4);color:#A996FF;}
.article-title{
  font-size:40px;line-height:1.28;font-weight:700;margin:18px 0 18px;
  letter-spacing:-.01em;max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:22px;font-size:13.5px;color:var(--muted);}
.article-meta i{color:var(--primary);margin-right:6px;}

/* ============ 布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 230px;
  gap:56px;
  align-items:start;
  padding:56px 0 20px;
}
.article-main{max-width:790px;min-width:0;}
.article-body{font-size:17px;line-height:1.9;color:#DCE6F2;}
.article-body h2{
  font-size:24px;font-weight:700;line-height:1.45;color:var(--text);
  margin:46px 0 16px;padding-left:14px;border-left:3px solid var(--primary);
  scroll-margin-top:96px;
}
.article-body h3{font-size:19px;font-weight:600;color:var(--primary);margin:32px 0 12px;scroll-margin-top:96px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--text);margin:24px 0 10px;}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul li{list-style:none;position:relative;margin:9px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:-16px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(25,227,177,.7);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin:9px 0;}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body strong{color:#FFFFFF;font-weight:600;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:#5CF0CB;}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;border-radius:0 14px 14px 0;
  background:rgba(255,255,255,.05);border-left:3px solid var(--primary);
  color:#C7D4E4;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:26px auto;width:auto;box-shadow:0 18px 40px -24px rgba(0,0,0,.85);}
.article-body figure{margin:26px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--dim);margin-top:12px;}
.article-body .table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:14px;-webkit-overflow-scrolling:touch;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;}
.article-body th{
  background:rgba(25,227,177,.10);color:var(--text);font-weight:600;
  text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body td{padding:13px 16px;border-bottom:1px solid var(--line-soft);color:#CFDBEA;}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:40px 0;}
.article-body code{
  background:rgba(25,227,177,.10);color:#7DF0D4;padding:2px 7px;border-radius:6px;font-size:14px;
}

/* ============ 目录 ============ */
.toc{
  position:sticky;top:96px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 18px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.toc h2{font-size:13px;letter-spacing:.06em;color:var(--muted);font-weight:600;margin:0 0 14px;text-transform:none;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;font-size:13.5px;color:var(--muted);
  line-height:1.5;border-left:2px solid transparent;
  transition:all .2s var(--ease);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.toc-list a.is-active{color:var(--primary);border-left-color:var(--primary);background:rgba(25,227,177,.08);}

/* ============ 文末 ============ */
.article-foot{margin-top:44px;padding-top:28px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;}

.related{margin-top:24px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:26px;font-weight:700;margin:0;line-height:1.35;}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--muted);}
.section-head .more{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.section-head .more:hover{gap:10px;}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(25,227,177,.35);}
.card-cover{aspect-ratio:3/2;width:100%;object-fit:cover;border:none;border-bottom:1px solid var(--line-soft);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-title{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card-title{color:var(--primary);}
.card-desc{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--dim);margin-top:auto;}

/* ============ 转化 CTA ============ */
.cta-band{
  margin:80px 0 0;
  padding:52px 0;
  background:
    radial-gradient(700px 300px at 20% 0%, rgba(25,227,177,.18), transparent 65%),
    linear-gradient(120deg, rgba(25,227,177,.14), rgba(124,92,255,.12) 70%, transparent);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:center;
}
.cta-inner h2{font-size:28px;font-weight:700;margin:14px 0 12px;line-height:1.4;}
.cta-inner p{color:var(--muted);font-size:15px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ============ 空状态 ============ */
.empty-state{
  text-align:center;padding:70px 28px;border-radius:var(--r-block);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.empty-state .icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;
  display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary);
  background:rgba(25,227,177,.10);border:1px solid rgba(25,227,177,.3);
}
.empty-state h2{font-size:22px;margin:0 0 10px;font-weight:700;}
.empty-state p{color:var(--muted);font-size:15px;margin:0 0 24px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;padding:64px 0 30px;
  background:linear-gradient(180deg,rgba(6,10,20,.4),rgba(6,10,20,.95));
  border-top:1px solid var(--line);
  position:relative;z-index:2;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;margin:18px 0 0;max-width:340px;}
.footer-col h3{font-size:14px;font-weight:600;color:var(--text);margin:0 0 16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--dim);
}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{display:none;}
@media (max-width:1023px){
  .container{padding:0 20px;}
  .main-nav{display:none;}
  .header-actions .btn-ghost{display:none;}
  .header-inner{height:64px;}
  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:95;
    background:rgba(9,14,26,.94);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    padding:8px 6px calc(8px + env(safe-area-inset-bottom));
  }
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;
    font-size:11.5px;color:var(--dim);padding:4px 2px;border-radius:10px;
    transition:color .2s var(--ease);
  }
  .tab-item i{font-size:16px;}
  .tab-item.active{color:var(--primary);}
  .tab-item.active i{filter:drop-shadow(0 0 8px rgba(25,227,177,.8));}
  .tab-item:hover{color:var(--text);}
  body{padding-bottom:calc(70px + env(safe-area-inset-bottom));}
  .article-hero{padding:36px 0 30px;}
  .article-title{font-size:29px;line-height:1.34;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:36px 0 10px;}
  .toc{display:none;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:21px;margin-top:36px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .cta-band{padding:44px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:639px){
  .article-title{font-size:25px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .logo-text small{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .article-meta{gap:14px;font-size:12.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --primary:#19E3B1;
  --primary-deep:#12C9C0;
  --accent:#FF8A3C;
  --violet:#7C5CFF;
  --bg:#060A14;
  --bg-2:#0D1526;
  --text:#E6EEF7;
  --muted:#93A4BD;
  --dim:#5A6B85;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --r-card:18px;
  --r-big:24px;
  --r-btn:12px;
  --shadow-card: inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-lift: inset 0 1px 0 rgba(255,255,255,.08), 0 0 0 1px rgba(25,227,177,.35), 0 0 40px -12px rgba(25,227,177,.45);
  --ease:cubic-bezier(.2,.8,.2,1);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(25,227,177,.14), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(124,92,255,.14), transparent 60%),
    linear-gradient(180deg,#060A14 0%, #0B1120 46%, #0D1526 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.035;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size:48px 48px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--primary)}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(25,227,177,.25);color:#fff}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--primary);text-transform:none;padding:6px 12px;border-radius:999px;border:1px solid rgba(25,227,177,.28);background:rgba(25,227,177,.08);font-weight:600}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(25,227,177,.9)}
h2.title{font-size:30px;line-height:1.34;margin-top:16px}
h3.sub{font-size:20px;line-height:1.4;font-weight:600}
.desc{color:var(--muted);margin-top:14px;font-size:16px}
.small-note{font-size:13px;color:var(--dim)}

/* Header */
.site-header{position:sticky;top:0;z-index:60;border-bottom:1px solid transparent;background:linear-gradient(180deg, rgba(6,10,20,.9), rgba(6,10,20,.35));transition:background .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease)}
.site-header.scrolled{background:rgba(9,14,26,.74);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom-color:var(--line);box-shadow:0 12px 32px -24px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#19E3B1,#12C9C0 55%,#7C5CFF);color:#04120E;display:grid;place-items:center;font-weight:700;font-size:14px;letter-spacing:.02em;box-shadow:0 8px 22px -12px rgba(25,227,177,.9)}
.logo-text{display:flex;flex-direction:column;font-weight:700;font-size:17px;line-height:1.1;color:var(--text)}
.logo-text small{font-weight:400;font-size:11px;color:var(--dim);letter-spacing:.06em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--muted);white-space:nowrap}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(25,227,177,.8)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 22px;border:1px solid transparent;cursor:pointer;transition:transform .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);white-space:nowrap;line-height:1.2}
.btn-primary{background:linear-gradient(135deg,#19E3B1,#12C9C0);color:#04120E;box-shadow:0 8px 28px -10px rgba(25,227,177,.6)}
.btn-primary:hover{color:#04120E;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 36px -10px rgba(25,227,177,.8)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:rgba(25,227,177,.08)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16px}
.text-link{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(25,227,177,.4)}
.text-link:hover{text-decoration-color:var(--primary)}

/* Cards & glass */
.glass{background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease)}
.card-lift:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(25,227,177,.35);background:var(--glass-strong)}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.02em;padding:4px 11px;border-radius:999px;border:1px solid var(--line-strong);color:var(--muted);background:rgba(255,255,255,.04)}
.tag-primary{color:var(--primary);border-color:rgba(25,227,177,.35);background:rgba(25,227,177,.1)}
.tag-accent{color:var(--accent);border-color:rgba(255,138,60,.35);background:rgba(255,138,60,.1)}
.tag-violet{color:#B4A3FF;border-color:rgba(124,92,255,.4);background:rgba(124,92,255,.14)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* Breadcrumb */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--primary);font-weight:600}

/* Hero */
.hero{position:relative;overflow:hidden;padding:72px 0 84px;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.34}
.hero-veil{position:absolute;inset:0;background:linear-gradient(120deg, rgba(6,10,20,.94) 8%, rgba(9,14,26,.76) 46%, rgba(13,21,38,.6) 100%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:40px;line-height:1.24;margin-top:20px}
.hero p.lead{margin-top:16px;font-size:17px;color:var(--muted);max-width:600px}
.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat-pill{padding:10px 16px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.stat-pill b{color:var(--text);font-size:15px;font-variant-numeric:tabular-nums}
.stat-pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(25,227,177,.9);flex-shrink:0}
.hero-panel{border-radius:var(--r-big);padding:26px;background:rgba(255,255,255,.055);border:1px solid var(--line);box-shadow:var(--shadow-card);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.hero-panel h2{font-size:16px;font-weight:600;color:var(--text)}
.hero-panel .mini-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.09)}
.hero-panel .mini-row:last-child{border-bottom:0;padding-bottom:0}
.hero-panel .mini-row span{font-size:14px;color:var(--muted)}
.hero-panel .mini-row b{font-size:14px;color:var(--primary);font-weight:600}

/* Quick picks */
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pick-card{padding:26px;border-radius:var(--r-card);position:relative;overflow:hidden}
.pick-card h3{font-size:19px;margin-top:14px}
.pick-card p{color:var(--muted);font-size:15px;margin-top:10px}
.pick-card .price{margin-top:18px;font-size:14px;color:var(--accent);font-weight:600}
.pick-card.recommend{border-color:rgba(25,227,177,.45);background:linear-gradient(160deg, rgba(25,227,177,.12), rgba(255,255,255,.05) 60%);box-shadow:0 0 0 1px rgba(25,227,177,.18), var(--shadow-card)}
.ribbon{position:absolute;top:18px;right:-34px;transform:rotate(38deg);background:linear-gradient(135deg,#19E3B1,#12C9C0);color:#04120E;font-size:11px;font-weight:700;padding:5px 40px;letter-spacing:.06em}

/* Compare table */
.table-wrap{border-radius:var(--r-big);border:1px solid var(--line);overflow:hidden;background:rgba(255,255,255,.03);box-shadow:var(--shadow-card)}
table.compare{width:100%;border-collapse:separate;border-spacing:0;font-size:15px}
table.compare thead th{position:sticky;top:var(--header-h);z-index:5;background:rgba(19,29,48,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);text-align:left;padding:18px 20px;font-size:14px;font-weight:600;color:var(--muted);border-bottom:1px solid var(--line);letter-spacing:.02em}
table.compare thead th.col-featured{color:var(--primary);background:rgba(25,227,177,.1)}
table.compare thead th:first-child{left:0;z-index:7;color:var(--text)}
table.compare tbody th{position:sticky;left:0;z-index:3;background:rgba(13,21,38,.98);text-align:left;padding:16px 20px;font-weight:500;font-size:14px;color:var(--text);border-bottom:1px solid rgba(255,255,255,.06);white-space:nowrap}
table.compare tbody td{padding:16px 20px;color:var(--muted);border-bottom:1px solid rgba(255,255,255,.06);font-size:14.5px;font-variant-numeric:tabular-nums}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
table.compare tbody tr:hover td{background:rgba(25,227,177,.05);color:var(--text)}
table.compare td.cell-featured{color:var(--text);background:rgba(25,227,177,.055);border-left:1px solid rgba(25,227,177,.35);box-shadow:inset 3px 0 0 rgba(25,227,177,.7)}
.th-badge{display:inline-block;margin-left:8px;font-size:11px;padding:2px 8px;border-radius:999px;background:linear-gradient(135deg,#19E3B1,#12C9C0);color:#04120E;font-weight:700;vertical-align:middle}
.star{color:var(--primary);font-weight:600}

/* Tier cards (mobile) */
.tier-card{border-radius:var(--r-card);padding:22px;margin-bottom:18px}
.tier-card h3{font-size:18px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.tier-card .kv{display:flex;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.09);font-size:14px}
.tier-card .kv:last-child{border-bottom:0}
.tier-card .kv span{color:var(--muted)}
.tier-card .kv b{color:var(--text);font-weight:500;text-align:right}
.tier-card.featured{border-color:rgba(25,227,177,.5);background:linear-gradient(160deg, rgba(25,227,177,.12), rgba(255,255,255,.04) 62%)}

/* Diff list */
.diff-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.diff-item{display:flex;gap:16px;padding:22px;border-radius:var(--r-card)}
.diff-icon{width:44px;height:44px;flex-shrink:0;border-radius:14px;display:grid;place-items:center;font-size:18px;font-weight:700;background:rgba(25,227,177,.12);color:var(--primary);border:1px solid rgba(25,227,177,.3)}
.diff-icon.violet{background:rgba(124,92,255,.14);color:#B4A3FF;border-color:rgba(124,92,255,.36)}
.diff-icon.accent{background:rgba(255,138,60,.13);color:var(--accent);border-color:rgba(255,138,60,.34)}
.diff-item h3{font-size:16px}
.diff-item p{font-size:14.5px;color:var(--muted);margin-top:8px}

/* Scenario grid */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.scene-card{border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column}
.scene-card .thumb{aspect-ratio:3/2;overflow:hidden;position:relative;border-bottom:1px solid var(--line)}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.scene-card:hover .thumb img{transform:scale(1.05)}
.scene-card .thumb .veil{position:absolute;inset:0;background:linear-gradient(180deg, rgba(6,10,20,.05), rgba(6,10,20,.72))}
.scene-card .body{padding:20px}
.scene-card h3{font-size:16.5px}
.scene-card p{font-size:14px;color:var(--muted);margin-top:8px}
.scene-card .foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--dim)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.step{padding:26px 22px;border-radius:var(--r-card);position:relative}
.step .idx{font-size:34px;font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(25,227,177,.6);font-variant-numeric:tabular-nums}
.step h3{font-size:16.5px;margin-top:14px}
.step p{font-size:14px;color:var(--muted);margin-top:8px}
.steps-line{position:absolute;top:44px;left:6%;right:6%;height:1px;background:linear-gradient(90deg, rgba(25,227,177,.5), rgba(124,92,255,.35), rgba(255,138,60,.3));z-index:0}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:880px}
.faq-item{border-radius:var(--r-card);overflow:hidden;background:var(--glass);border:1px solid var(--line);transition:border-color .22s var(--ease), background-color .22s var(--ease)}
.faq-item[open]{border-color:rgba(25,227,177,.4);background:rgba(25,227,177,.05)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:20px 22px;font-size:16px;font-weight:600;color:var(--text)}
.faq-item summary::-webkit-details-marker{display:none}
.q-mark{width:26px;height:26px;flex-shrink:0;border-radius:50%;background:rgba(25,227,177,.14);color:var(--primary);display:grid;place-items:center;font-size:13px;font-weight:700;border:1px solid rgba(25,227,177,.32)}
.plus{margin-left:auto;color:var(--muted);font-size:20px;line-height:1;transition:transform .24s var(--ease), color .24s var(--ease)}
.faq-item[open] .plus{transform:rotate(45deg);color:var(--primary)}
.faq-body{padding:0 22px 22px 62px;color:var(--muted);font-size:15px;line-height:1.85}
.faq-foot{margin-top:26px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:14px;color:var(--dim)}

/* CTA band */
.cta-band{border-radius:var(--r-big);padding:52px 44px;position:relative;overflow:hidden;border:1px solid rgba(25,227,177,.28);background:linear-gradient(120deg, rgba(25,227,177,.16), rgba(124,92,255,.14) 52%, rgba(255,138,60,.12));box-shadow:var(--shadow-card)}
.cta-band::after{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;background:radial-gradient(circle, rgba(25,227,177,.32), transparent 68%);pointer-events:none}
.cta-band h2{font-size:28px;max-width:640px}
.cta-band p{color:var(--muted);margin-top:14px;max-width:620px;font-size:15.5px}
.cta-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;position:relative;z-index:2}

/* Footer */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:linear-gradient(180deg, rgba(6,10,20,.4), rgba(6,10,20,.86));padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:18px;max-width:360px;line-height:1.8}
.footer-col h3{font-size:14px;color:var(--text);font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{margin-top:52px;border-top:1px solid var(--line);padding:22px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--dim)}

/* Mobile tabbar */
.mobile-tabbar{display:none}
.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--dim);padding:8px 2px;border-radius:14px;transition:color .22s var(--ease)}
.tab-item svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.active{color:var(--primary)}
.tab-item.active svg{filter:drop-shadow(0 0 8px rgba(25,227,177,.75))}
.tab-item.active::after{content:"";width:4px;height:4px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(25,227,177,.9)}

.mobile-only{display:none}

/* Responsive */
@media (max-width:1023px){
  .mobile-only{display:block}
  .desktop-only{display:none !important}
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section-tight{padding:48px 0}
  .header-inner{height:60px}
  .logo-text small{display:none}
  .main-nav,.header-actions .btn-ghost{display:none}
  .hero{padding:44px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:28px;line-height:1.32}
  .hero p.lead{font-size:15.5px}
  .hero-cta .btn{flex:1 1 auto}
  .pick-grid{grid-template-columns:1fr}
  .diff-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .table-wrap{display:none}
  .steps{grid-template-columns:1fr;gap:16px}
  .steps-line{display:none}
  .faq-body{padding-left:22px}
  .cta-band{padding:34px 24px}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-col h3{margin-bottom:12px}
  .site-footer{margin-top:64px;padding-top:44px}
  .mobile-tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    padding:8px 10px calc(8px + env(safe-area-inset-bottom));
    background:rgba(9,14,26,.9);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
  }
  body{padding-bottom:calc(70px + env(safe-area-inset-bottom))}
  h2.title{font-size:23px}
  .hero-panel{padding:20px}
}
@media (min-width:640px) and (max-width:1023px){
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .diff-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:1024px){
  .steps-line{display:block}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .card-lift:hover,.btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --primary:#19E3B1;
  --primary-2:#12C9C0;
  --accent:#FF8A3C;
  --violet:#7C5CFF;
  --bg:#060A14;
  --bg-2:#0D1526;
  --text:#E6EEF7;
  --muted:#93A4BD;
  --disabled:#5A6B85;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.06);
  --r-card:18px;
  --r-block:24px;
  --r-btn:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.8);
  --shadow-glow:0 0 0 1px rgba(25,227,177,.35), 0 0 40px -12px rgba(25,227,177,.45);
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;line-height:1.75}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:calc(76px + env(safe-area-inset-bottom));
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 460px at 12% -6%, rgba(25,227,177,.13), transparent 62%),
    radial-gradient(680px 420px at 92% 4%, rgba(124,92,255,.12), transparent 60%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.035;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size:44px 44px;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--primary)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0}
::selection{background:rgba(25,227,177,.3);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-2);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,20,.9);box-shadow:0 14px 34px -26px rgba(0,0,0,.95)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  display:inline-grid;place-items:center;
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04120E;font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:0 8px 24px -12px rgba(25,227,177,.85);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.01em;line-height:1.1;display:flex;flex-direction:column}
.logo-text small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.06em;margin-top:3px}
.main-nav{display:none;align-items:center;gap:6px;margin-left:auto}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--muted);border-radius:10px}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media (min-width:1024px){.nav-actions{margin-left:8px}}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04120E;
  box-shadow:0 8px 28px -10px rgba(25,227,177,.6);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 34px -10px rgba(25,227,177,.85);color:#04120E}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{
  background:var(--glass);border:1px solid rgba(255,255,255,.18);color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.nav-actions .btn-ghost{display:none}
@media (min-width:768px){.nav-actions .btn-ghost{display:inline-flex}}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:64px 0 76px;border-bottom:1px solid var(--line-2)}
@media (min-width:1024px){.page-hero{padding:92px 0 104px}}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  filter:saturate(1.05);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg, rgba(6,10,20,.95) 8%, rgba(6,10,20,.82) 46%, rgba(6,10,20,.62) 100%);
}
.hero-inner{position:relative;z-index:1;display:grid;gap:28px}
@media (min-width:1024px){.hero-inner{grid-template-columns:7fr 5fr;align-items:center;gap:48px}}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);letter-spacing:.02em}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{opacity:.5}
.breadcrumb .current{color:var(--primary)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12px;letter-spacing:.02em;
  color:var(--primary);background:rgba(25,227,177,.1);border:1px solid rgba(25,227,177,.3);
}
.hero-title{
  font-size:28px;line-height:1.28;font-weight:700;letter-spacing:-.01em;margin:18px 0 0;
}
@media (min-width:768px){.hero-title{font-size:36px}}
@media (min-width:1024px){.hero-title{font-size:44px;line-height:1.2}}
.hero-sub{color:var(--muted);font-size:16px;margin-top:16px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stat-row{list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat-pill{
  display:flex;flex-direction:column;gap:2px;min-width:132px;
  padding:14px 18px;border-radius:16px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.stat-pill b{font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--primary)}
.stat-pill span{font-size:12px;color:var(--muted);letter-spacing:.02em}
.hero-card{
  border-radius:var(--r-block);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-card-body{padding:20px 22px 24px}
.hero-card-body h2{font-size:17px;font-weight:600}
.hero-card-body p{font-size:14px;color:var(--muted);margin-top:8px}
.mini-track{display:flex;gap:8px;margin-top:16px}
.mini-track i{flex:1;height:6px;border-radius:999px;background:rgba(255,255,255,.12);font-style:normal}
.mini-track i.on{background:linear-gradient(90deg,var(--primary),var(--primary-2))}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;position:relative;z-index:1}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:36px}
@media (min-width:1024px){.section-head{margin-bottom:52px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;
  color:var(--accent);background:rgba(255,138,60,.1);border:1px solid rgba(255,138,60,.28);
  padding:5px 12px;border-radius:999px;
}
.eyebrow.violet{color:var(--violet);background:rgba(124,92,255,.12);border-color:rgba(124,92,255,.3)}
.eyebrow.teal{color:var(--primary);background:rgba(25,227,177,.1);border-color:rgba(25,227,177,.28)}
.section-title{font-size:24px;line-height:1.32;font-weight:700;margin-top:16px;letter-spacing:-.01em}
@media (min-width:1024px){.section-title{font-size:30px;line-height:1.26}}
.section-desc{color:var(--muted);font-size:15px;margin-top:14px}
.title-bar{position:relative;padding-left:16px}
.title-bar::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--primary),rgba(25,227,177,0))}

/* ---------- 等级阶梯 ---------- */
.level-rail{list-style:none;display:grid;gap:20px}
.level-item{
  position:relative;display:grid;gap:16px;
  padding:24px;border-radius:var(--r-block);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.level-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--primary),rgba(25,227,177,0));
  opacity:.85;
}
.level-item:hover{transform:translateY(-4px);border-color:rgba(25,227,177,.3);box-shadow:var(--shadow-card),var(--shadow-glow)}
.lv-num{
  font-size:64px;font-weight:700;line-height:1;
  color:rgba(25,227,177,.16);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.lv-body h3{font-size:19px;font-weight:600;margin-top:12px}
.lv-body p{color:var(--muted);font-size:14px;margin-top:10px;max-width:640px}
.lv-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.02em;
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--muted);
}
.chip.primary{color:var(--primary);border-color:rgba(25,227,177,.3);background:rgba(25,227,177,.08)}
.chip.violet{color:#B9A7FF;border-color:rgba(124,92,255,.34);background:rgba(124,92,255,.12)}
.chip.accent{color:#FFB27E;border-color:rgba(255,138,60,.32);background:rgba(255,138,60,.1)}
.check-list{list-style:none;display:grid;gap:10px;margin-top:18px}
.check-list li{position:relative;padding-left:24px;font-size:14px;color:var(--muted)}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 12px -2px rgba(25,227,177,.8);
}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:20px}
.bar > span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-2))}
.bar-label{display:flex;justify-content:space-between;font-size:12px;color:var(--disabled);margin-top:8px;font-variant-numeric:tabular-nums}
@media (min-width:1024px){
  .level-item{grid-template-columns:132px 1fr;align-items:start;gap:32px;padding:38px 40px}
  .level-item:nth-child(even){grid-template-columns:1fr 132px}
  .level-item:nth-child(even) .lv-num{order:2;text-align:right}
  .level-item:nth-child(even) .lv-body{order:1}
  .level-item:nth-child(even)::before{left:auto;right:0}
  .lv-num{font-size:78px}
}

/* ---------- 非对称分栏 ---------- */
.split{display:grid;gap:28px}
@media (min-width:1024px){
  .split-5-7{grid-template-columns:5fr 7fr;gap:44px;align-items:start}
  .split-7-5{grid-template-columns:7fr 5fr;gap:44px;align-items:start}
}
.point-list{list-style:none;display:grid;gap:18px;margin-top:26px}
.point-list li{display:grid;grid-template-columns:36px 1fr;gap:14px;align-items:start}
.point-icon{
  display:grid;place-items:center;width:36px;height:36px;border-radius:12px;
  background:rgba(25,227,177,.1);border:1px solid rgba(25,227,177,.26);
  color:var(--primary);font-size:14px;font-weight:700;
}
.point-list h3{font-size:16px;font-weight:600}
.point-list p{font-size:14px;color:var(--muted);margin-top:6px}
.glass-panel{
  padding:24px;border-radius:var(--r-block);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
@media (min-width:1024px){.glass-panel{padding:30px 32px}}
.earn-list{list-style:none;display:grid;gap:2px;margin-top:6px}
.earn-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 4px;border-bottom:1px solid var(--line-2);font-size:15px;
}
.earn-list li:last-child{border-bottom:none}
.earn-list .earn-name{display:flex;align-items:center;gap:12px;color:var(--text)}
.earn-list .earn-name em{font-style:normal;font-size:12px;color:var(--muted);display:block;margin-top:2px}
.earn-value{color:var(--primary);font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.earn-dot{width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px -2px rgba(25,227,177,.9);flex:0 0 auto}
.earn-dot.orange{background:var(--accent);box-shadow:0 0 12px -2px rgba(255,138,60,.9)}
.earn-dot.violet{background:var(--violet);box-shadow:0 0 12px -2px rgba(124,92,255,.9)}

/* ---------- 步骤条 ---------- */
.steps{display:grid;gap:16px;counter-reset:step}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{
  position:relative;padding:24px 22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.step::after{
  content:"";position:absolute;right:-10px;top:44px;width:20px;height:1px;
  background:linear-gradient(90deg,rgba(25,227,177,.7),rgba(25,227,177,0));
  display:none;
}
@media (min-width:1024px){.step::after{display:block}.step:last-child::after{display:none}}
.step:hover{transform:translateY(-4px);border-color:rgba(25,227,177,.3);box-shadow:var(--shadow-glow)}
.step-num{
  display:grid;place-items:center;width:30px;height:30px;border-radius:10px;
  background:linear-gradient(135deg,rgba(25,227,177,.22),rgba(18,201,192,.1));
  border:1px solid rgba(25,227,177,.35);
  color:var(--primary);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;font-weight:600;margin-top:16px}
.step p{font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- 场景卡 ---------- */
.card-grid{display:grid;gap:20px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}}
.card{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:rgba(25,227,177,.35);box-shadow:var(--shadow-card),var(--shadow-glow)}
.card img{width:100%;aspect-ratio:3/2;object-fit:cover;border-bottom:1px solid var(--line-2)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:16px;font-weight:600}
.card-body p{font-size:14px;color:var(--muted)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);padding-top:8px;border-top:1px solid var(--line-2)}
.link-arrow{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.link-arrow::after{content:"→";transition:transform .22s var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item[open]{border-color:rgba(25,227,177,.32);background:rgba(25,227,177,.05)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{
  position:relative;width:24px;height:24px;flex:0 0 24px;border-radius:50%;
  border:1px solid rgba(255,255,255,.2);
  transition:border-color .22s var(--ease);
}
.faq-item summary:hover .faq-icon{border-color:var(--primary)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:transform .24s var(--ease)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0)}
.faq-answer{padding:0 20px 20px;font-size:15px;color:var(--muted);line-height:1.85}
.faq-answer p + p{margin-top:10px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-block);
  border:1px solid rgba(25,227,177,.28);
  background:
    radial-gradient(520px 300px at 12% 0%, rgba(25,227,177,.22), transparent 62%),
    radial-gradient(460px 280px at 92% 100%, rgba(124,92,255,.2), transparent 60%),
    linear-gradient(135deg, rgba(13,21,38,.96), rgba(6,10,20,.96));
  padding:36px 24px;
  box-shadow:var(--shadow-card);
}
@media (min-width:1024px){.cta-band{padding:56px 56px;}}
.cta-band h2{font-size:22px;font-weight:700;line-height:1.32}
@media (min-width:1024px){.cta-band h2{font-size:30px}}
.cta-band p{color:var(--muted);font-size:15px;margin-top:14px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--line-2);
  background:linear-gradient(180deg, rgba(13,21,38,.5), rgba(6,10,20,.95));
  position:relative;z-index:1;
}
.footer-grid{display:grid;gap:32px;padding:52px 0 32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.02em;color:var(--text);margin-bottom:14px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:20px 0 26px;border-top:1px solid var(--line-2);
  font-size:13px;color:var(--disabled);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-around;
  padding:8px 10px calc(8px + env(safe-area-inset-bottom));
  background:rgba(8,13,24,.92);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-top:1px solid var(--line);
}
@media (min-width:1024px){.mobile-tab{display:none}}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;
  font-size:12px;color:var(--muted);padding:6px 2px;border-radius:12px;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.tab-item svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item:hover{color:var(--text)}
.tab-item.active{color:var(--primary)}
.tab-item.active svg{filter:drop-shadow(0 0 8px rgba(25,227,177,.7))}
.tab-item.tab-cta{
  flex:0 0 auto;flex-direction:row;gap:6px;
  padding:11px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04120E;
  box-shadow:0 -4px 24px -6px rgba(25,227,177,.7);
}
.tab-item.tab-cta:hover{color:#04120E;filter:brightness(1.05)}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
    --bg-0:#060A14;
    --bg-1:#0D1526;
    --primary:#19E3B1;
    --primary-2:#12C9C0;
    --accent:#FF8A3C;
    --violet:#7C5CFF;
    --text:#E6EEF7;
    --muted:#93A4BD;
    --dim:#5A6B85;
    --glass:rgba(255,255,255,.06);
    --stroke:rgba(255,255,255,.10);
    --r-card:18px;
    --r-block:24px;
    --r-btn:12px;
    --r-pill:999px;
    --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.8);
    --shadow-glow:0 0 0 1px rgba(25,227,177,.35), 0 0 40px -12px rgba(25,227,177,.45);
    --ease:cubic-bezier(.2,.8,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    background:var(--bg-0);
    color:var(--text);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    padding-bottom:calc(70px + env(safe-area-inset-bottom));
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background:
      radial-gradient(760px 420px at 12% -6%, rgba(25,227,177,.16), transparent 62%),
      radial-gradient(680px 460px at 92% 4%, rgba(124,92,255,.14), transparent 66%),
      linear-gradient(180deg,#060A14 0%, #0A1120 46%, #060A14 100%);
  }
  body::after{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    opacity:.035;
    background-image:linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
    background-size:56px 56px;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
  a:hover{color:var(--primary)}
  button,input{font:inherit;color:inherit}
  button{border:0;background:none;cursor:pointer}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    border-radius:8px;
  }
  ::selection{background:rgba(25,227,177,.32);color:#fff}

  div.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
  @media (min-width:768px){ div.container{padding:0 32px} }

  /* ---------- 通用组件 ---------- */
  .glass{
    background:var(--glass);
    backdrop-filter:blur(18px);
    border:1px solid var(--stroke);
  }
  .card-lift{
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
  }
  .card-lift:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-glow);
    border-color:rgba(25,227,177,.35);
  }
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:46px;
    padding:0 22px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:600;
    letter-spacing:.01em;
    white-space:nowrap;
    transition:all .22s var(--ease);
  }
  .btn-primary{
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
    color:#04120E;
    box-shadow:0 8px 28px -10px rgba(25,227,177,.6);
  }
  .btn-primary:hover{
    color:#04120E;
    filter:brightness(1.06);
    transform:translateY(-1px);
    box-shadow:0 12px 36px -10px rgba(25,227,177,.8);
  }
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.18);
    color:var(--text);
  }
  .btn-ghost:hover{
    color:var(--primary);
    border-color:rgba(25,227,177,.55);
    background:rgba(25,227,177,.08);
  }
  .btn-sm{height:40px;padding:0 16px;font-size:14px}
  .btn-block{width:100%}
  @media (min-width:768px){ .btn-block{width:auto} }

  .tag{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 11px;
    border-radius:var(--r-pill);
    font-size:12px;
    letter-spacing:.02em;
    color:var(--primary);
    background:rgba(25,227,177,.10);
    border:1px solid rgba(25,227,177,.28);
  }
  .tag-accent{color:var(--accent);background:rgba(255,138,60,.10);border-color:rgba(255,138,60,.30)}
  .tag-violet{color:#C0B0FF;background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.36)}

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    letter-spacing:.14em;
    color:var(--primary);
    text-transform:none;
  }
  .eyebrow::before{content:"";width:14px;height:2px;background:var(--primary);border-radius:2px}

  .section{padding:56px 0;position:relative;z-index:1}
  @media (min-width:1024px){ .section{padding:96px 0} }
  .section-tight{padding:44px 0}
  @media (min-width:1024px){ .section-tight{padding:64px 0} }

  .h2{font-size:26px;line-height:1.35;font-weight:700;margin-top:12px}
  @media (min-width:1024px){ .h2{font-size:30px;line-height:1.3} }
  .h3{font-size:19px;line-height:1.5;font-weight:600;margin-top:10px}
  .lead{color:var(--muted);font-size:15px;line-height:1.85;margin-top:14px;max-width:640px}
  .sec-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between}

  .num{font-variant-numeric:tabular-nums}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    background:rgba(6,10,20,.58);
    backdrop-filter:blur(18px);
    border-bottom:1px solid transparent;
    transition:background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(6,10,20,.92);
    border-bottom-color:var(--stroke);
    box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
  .logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .logo-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:12px;
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
    color:#04120E;font-weight:800;font-size:15px;letter-spacing:.02em;
    box-shadow:0 10px 26px -14px rgba(25,227,177,.9);
  }
  .logo-text{display:flex;flex-direction:column;font-weight:700;font-size:16px;line-height:1.15}
  .logo-text small{font-size:10px;font-weight:400;color:var(--dim);letter-spacing:.12em;margin-top:3px}
  @media (max-width:520px){
    .logo-mark{width:38px;height:38px;font-size:13px}
    .logo-text{font-size:14px}
    .logo-text small{display:none}
  }
  .main-nav{display:none;align-items:center;gap:28px}
  @media (min-width:1024px){ .main-nav{display:flex} }
  .nav-link{
    position:relative;
    padding:6px 0;
    font-size:15px;
    color:var(--muted);
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;right:100%;bottom:-2px;
    height:2px;border-radius:2px;
    background:var(--primary);
    transition:right .22s var(--ease);
  }
  .nav-link:hover{color:var(--text)}
  .nav-link:hover::after{right:0}
  .nav-link.active{color:var(--text);font-weight:600}
  .nav-link.active::after{right:0}
  .header-actions{display:flex;align-items:center;gap:10px}
  .header-actions .btn-ghost{display:none}
  @media (min-width:640px){ .header-actions .btn-ghost{display:inline-flex} }
  .header-actions .btn{padding:0 16px;height:40px;font-size:14px}

  /* ---------- 首屏 ---------- */
  .page-hero{
    position:relative;
    padding:118px 0 66px;
    overflow:hidden;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
  }
  .page-hero::before{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(6,10,20,.86) 0%, rgba(6,10,20,.92) 55%, rgba(6,10,20,.98) 100%),
               radial-gradient(720px 380px at 78% 12%, rgba(25,227,177,.20), transparent 68%);
  }
  .hero-inner{position:relative;z-index:1;max-width:820px}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:20px}
  .breadcrumb a{color:var(--muted)}
  .breadcrumb span.sep{color:var(--dim)}
  .breadcrumb .current{color:var(--primary);font-weight:600}
  .page-hero h1{
    font-size:28px;
    line-height:1.28;
    font-weight:700;
    margin-top:16px;
    letter-spacing:0;
  }
  @media (min-width:1024px){ .page-hero h1{font-size:40px;line-height:1.22} }
  .hero-sub{color:var(--muted);font-size:15px;line-height:1.9;margin-top:18px;max-width:640px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
  .hero-pill{
    display:inline-flex;align-items:center;gap:8px;
    padding:8px 15px;border-radius:var(--r-pill);
    font-size:13px;color:var(--muted);
    background:rgba(255,255,255,.06);
    border:1px solid var(--stroke);
    backdrop-filter:blur(14px);
  }
  .hero-pill i{color:var(--primary)}
  .hero-pill strong{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}

  /* ---------- 非对称分栏 ---------- */
  .split{display:grid;gap:28px}
  @media (min-width:1024px){ .split{grid-template-columns:5fr 7fr;gap:48px;align-items:start} }

  .point-list{margin-top:22px;display:flex;flex-direction:column;gap:16px}
  .point{display:flex;gap:14px;align-items:flex-start}
  .point i{
    flex:0 0 34px;height:34px;border-radius:10px;
    display:inline-flex;align-items:center;justify-content:center;
    background:rgba(25,227,177,.12);color:var(--primary);font-size:14px;
    border:1px solid rgba(25,227,177,.24);
  }
  .point h3{font-size:15px;font-weight:600;margin:0}
  .point p{color:var(--muted);font-size:14px;line-height:1.8;margin-top:4px}

  .data-panel{
    border-radius:var(--r-block);
    padding:22px;
    background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.03));
    border:1px solid var(--stroke);
    box-shadow:var(--shadow-card);
  }
  @media (min-width:1024px){ .data-panel{padding:28px} }
  .data-row{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:15px 0;
    border-bottom:1px dashed rgba(255,255,255,.08);
  }
  .data-row:last-child{border-bottom:0;padding-bottom:0}
  .data-row:first-child{padding-top:0}
  .data-row .label{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600}
  .data-row .label i{color:var(--accent);font-size:14px}
  .data-row .value{font-size:15px;color:var(--muted);font-variant-numeric:tabular-nums}
  .data-row .value b{color:var(--primary);font-weight:700}
  .data-note{margin-top:18px;padding:14px 16px;border-radius:14px;background:rgba(124,92,255,.10);border:1px solid rgba(124,92,255,.26);font-size:13px;color:#C7BCFF;line-height:1.75}

  /* ---------- 筛选 chips ---------- */
  .chips{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;scroll-snap-type:x proximity}
  .chips::-webkit-scrollbar{height:4px}
  .chips::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:4px}
  .filter-chip{
    flex:0 0 auto;
    scroll-snap-align:start;
    padding:8px 16px;
    border-radius:var(--r-pill);
    font-size:13px;
    color:var(--muted);
    background:rgba(255,255,255,.05);
    border:1px solid var(--stroke);
    transition:all .22s var(--ease);
  }
  .filter-chip:hover{color:var(--text);border-color:rgba(25,227,177,.45)}
  .filter-chip.is-active{
    color:#04120E;
    font-weight:600;
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
    border-color:transparent;
    box-shadow:0 8px 24px -12px rgba(25,227,177,.8);
  }

  /* ---------- 不等高内容网格 ---------- */
  .content-grid{display:grid;gap:20px;grid-template-columns:1fr;margin-top:26px}
  @media (min-width:640px){ .content-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){
    .content-grid{grid-template-columns:repeat(3,1fr);gap:24px}
    .card-wide{grid-column:span 2}
  }
  .content-card{
    display:flex;
    flex-direction:column;
    border-radius:var(--r-card);
    overflow:hidden;
    background:linear-gradient(180deg, rgba(255,255,255,.065), rgba(255,255,255,.025));
    border:1px solid var(--stroke);
    box-shadow:var(--shadow-card);
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
  }
  .content-card:hover{
    transform:translateY(-4px);
    border-color:rgba(25,227,177,.35);
    box-shadow:var(--shadow-glow);
  }
  .thumb{position:relative;overflow:hidden}
  .thumb img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    transition:transform .5s var(--ease);
    border-bottom:1px solid rgba(255,255,255,.07);
  }
  .card-tall .thumb img{aspect-ratio:4/3.4}
  .card-wide .thumb img{aspect-ratio:16/9}
  @media (min-width:1024px){
    .card-tall .thumb img{aspect-ratio:4/5.2}
  }
  .content-card:hover .thumb img{transform:scale(1.04)}
  .thumb-tag{
    position:absolute;left:12px;top:12px;
    padding:5px 11px;border-radius:var(--r-pill);
    font-size:12px;letter-spacing:.02em;
    color:#04120E;font-weight:600;
    background:rgba(25,227,177,.92);
    backdrop-filter:blur(8px);
  }
  .content-card[data-cat="event"] .thumb-tag{background:rgba(255,138,60,.92)}
  .content-card[data-cat="gift"] .thumb-tag{background:rgba(124,92,255,.92);color:#F2EEFF}
  .lock-layer{
    position:absolute;inset:0;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(180deg, rgba(6,10,20,.35), rgba(6,10,20,.80));
    backdrop-filter:blur(1.5px);
  }
  .lock-pill{
    display:inline-flex;align-items:center;gap:7px;
    padding:7px 15px;
    border-radius:var(--r-pill);
    font-size:12px;
    color:#04120E;font-weight:600;
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
    box-shadow:0 8px 26px -10px rgba(25,227,177,.85);
  }
  .card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
  .card-body h3{font-size:16px;font-weight:600;line-height:1.5}
  .card-body p{font-size:14px;color:var(--muted);line-height:1.8;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .card-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:12px;color:var(--dim);margin-top:auto;padding-top:8px;font-variant-numeric:tabular-nums}
  .card-meta span{display:inline-flex;align-items:center;gap:6px}
  .card-meta i{color:var(--primary);font-size:11px}
  .card-link{
    font-size:13px;
    font-weight:600;
    color:var(--primary);
    display:inline-flex;align-items:center;gap:6px;
  }
  .card-link:hover{gap:10px}
  .empty-tip{margin-top:26px;padding:26px;border-radius:var(--r-card);text-align:center;color:var(--muted);font-size:14px;display:none}
  .empty-tip i{display:block;font-size:22px;color:var(--dim);margin-bottom:10px}

  /* ---------- 更新节奏列表条 ---------- */
  .rhythm-list{display:grid;gap:16px;margin-top:26px}
  .rhythm-row{
    display:grid;gap:14px;
    padding:20px;
    border-radius:var(--r-card);
    background:linear-gradient(90deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
    border:1px solid var(--stroke);
    transition:border-color .22s var(--ease), transform .22s var(--ease);
  }
  @media (min-width:1024px){
    .rhythm-row{grid-template-columns:1.1fr 1.4fr .9fr;align-items:center;padding:22px 26px;gap:26px}
  }
  .rhythm-row:hover{border-color:rgba(25,227,177,.32);transform:translateY(-2px)}
  .rhythm-name{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:600}
  .rhythm-name .dot{
    width:34px;height:34px;border-radius:10px;flex:0 0 34px;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:13px;color:var(--primary);
    background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.26);
  }
  .rhythm-desc{font-size:14px;color:var(--muted);line-height:1.8}
  .bar-wrap{display:flex;align-items:center;gap:12px}
  .bar{position:relative;flex:1;height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden}
  .bar span{
    position:absolute;inset:0 auto 0 0;border-radius:var(--r-pill);
    background:linear-gradient(90deg,#19E3B1,#12C9C0);
    box-shadow:0 0 18px -4px rgba(25,227,177,.7);
  }
  .bar-wrap .num{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;min-width:42px;text-align:right}

  /* ---------- 查看方式 ---------- */
  .way-grid{display:grid;gap:18px;margin-top:26px;grid-template-columns:1fr}
  @media (min-width:640px){ .way-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .way-grid{grid-template-columns:repeat(4,1fr)} }
  .way-item{
    padding:22px 20px;
    border-radius:var(--r-card);
    background:rgba(255,255,255,.04);
    border:1px solid var(--stroke);
    border-left:3px solid rgba(25,227,177,.55);
    transition:background .22s var(--ease), border-color .22s var(--ease);
  }
  .way-item:hover{background:rgba(25,227,177,.07);border-color:rgba(25,227,177,.35);border-left-color:var(--primary)}
  .way-item i{font-size:18px;color:var(--primary)}
  .way-item h3{font-size:15px;font-weight:600;margin-top:12px}
  .way-item p{font-size:13px;color:var(--muted);line-height:1.8;margin-top:8px}

  /* ---------- FAQ ---------- */
  .faq-wrap{margin-top:28px;display:grid;gap:14px}
  .faq-item{
    border-radius:var(--r-card);
    background:rgba(255,255,255,.045);
    border:1px solid var(--stroke);
    overflow:hidden;
    transition:border-color .22s var(--ease), background .22s var(--ease);
  }
  .faq-item[open]{border-color:rgba(25,227,177,.35);background:rgba(25,227,177,.05)}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;align-items:center;gap:14px;
    padding:18px 20px;
    font-size:15px;font-weight:600;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item .q-mark{
    flex:0 0 28px;height:28px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:12px;font-weight:700;color:#04120E;
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
  }
  .faq-item .plus{
    margin-left:auto;color:var(--muted);font-size:14px;
    transition:transform .24s var(--ease), color .24s var(--ease);
  }
  .faq-item[open] .plus{transform:rotate(180deg);color:var(--primary)}
  .faq-item .a-box{
    padding:0 20px 20px 62px;
    color:var(--muted);
    font-size:14px;
    line-height:1.9;
  }
  @media (max-width:520px){
    .faq-item .a-box{padding-left:20px}
  }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-block);
    padding:38px 24px;
    background-image:linear-gradient(120deg, rgba(6,10,20,.88), rgba(6,10,20,.72)), url('/assets/images/backpic/back-3.webp');
    background-size:cover;
    background-position:center;
    border:1px solid var(--stroke);
    box-shadow:var(--shadow-card);
  }
  .cta-band::after{
    content:"";
    position:absolute;inset:auto -60px -80px auto;
    width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle, rgba(25,227,177,.35), transparent 68%);
    pointer-events:none;
  }
  @media (min-width:1024px){ .cta-band{padding:56px 56px} }
  .cta-band .inner{position:relative;z-index:1;max-width:660px}
  .cta-band h2{font-size:24px;font-weight:700;line-height:1.35}
  @media (min-width:1024px){ .cta-band h2{font-size:30px} }
  .cta-band p{color:var(--muted);font-size:15px;line-height:1.9;margin-top:14px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;z-index:1;
    margin-top:64px;
    padding:56px 0 28px;
    background:#04070E;
    border-top:1px solid var(--stroke);
    padding-bottom:calc(28px + env(safe-area-inset-bottom));
  }
  @media (min-width:1024px){ .site-footer{margin-top:96px} }
  .footer-grid{display:grid;gap:30px;grid-template-columns:1fr}
  @media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px} }
  .footer-brand .logo{margin-bottom:16px}
  .footer-brand p{font-size:14px;color:var(--muted);line-height:1.9;max-width:400px}
  .footer-col h3{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px}
  .footer-col li+li{margin-top:11px}
  .footer-col a{font-size:14px;color:var(--muted)}
  .footer-col a:hover{color:var(--primary)}
  .footer-bottom{
    margin-top:42px;padding-top:22px;
    border-top:1px solid rgba(255,255,255,.06);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:var(--dim);
  }

  /* ---------- 移动端底部 Tab ---------- */
  .mobile-tab{
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:70;
    display:grid;
    grid-template-columns:repeat(5,1fr);
    align-items:center;
    padding:8px 6px calc(8px + env(safe-area-inset-bottom));
    background:rgba(6,10,20,.94);
    backdrop-filter:blur(20px);
    border-top:1px solid var(--stroke);
  }
  @media (min-width:1024px){ .mobile-tab{display:none} }
  .tab-item{
    display:flex;flex-direction:column;align-items:center;gap:5px;
    font-size:11px;color:var(--dim);
    padding:4px 0;border-radius:12px;
    transition:color .2s var(--ease);
  }
  .tab-item i{font-size:16px}
  .tab-item.is-active{color:var(--primary)}
  .tab-item.is-active i{filter:drop-shadow(0 0 8px rgba(25,227,177,.7))}
  .tab-item--cta{
    color:#04120E;font-weight:700;
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
    margin:0 4px;
    box-shadow:0 8px 22px -10px rgba(25,227,177,.9);
  }
  .tab-item--cta:hover,.tab-item--cta:active{color:#04120E}

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
    .content-card:hover,.card-lift:hover{transform:none}
  }

/* roulang page: category4 */
:root{
    --ink-0:#060A14;
    --ink-1:#0D1526;
    --ink-2:#111C31;
    --primary:#19E3B1;
    --primary-deep:#12C9C0;
    --accent:#FF8A3C;
    --violet:#7C5CFF;
    --text:#E6EEF7;
    --muted:#93A4BD;
    --disabled:#5A6B85;
    --line:rgba(255,255,255,.10);
    --line-soft:rgba(255,255,255,.06);
    --glass:rgba(255,255,255,.06);
    --radius-card:18px;
    --radius-block:24px;
    --radius-btn:12px;
    --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.8);
    --shadow-glow:0 8px 28px -10px rgba(25,227,177,.6);
    --ease:cubic-bezier(.2,.8,.2,1);
    --header-h:72px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--text);
    background:
      radial-gradient(1100px 620px at 82% -8%, rgba(25,227,177,.16), transparent 62%),
      radial-gradient(900px 560px at -8% 22%, rgba(124,92,255,.14), transparent 60%),
      linear-gradient(180deg,#060A14 0%, #0D1526 55%, #060A14 100%);
    background-attachment:fixed;
    min-height:100vh;
  }
  body::before{
    content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
    background-image:linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size:64px 64px;
    opacity:.5;
    mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
  }
  img{max-width:100%;display:block;border-radius:14px;object-fit:cover}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  a:hover{color:var(--primary)}
  button,input{font:inherit;color:inherit}
  ::selection{background:rgba(25,227,177,.3);color:#fff}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
  .narrow{max-width:820px}

  /* ---------- header ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:60;
    background:rgba(6,10,20,.72);
    border-bottom:1px solid transparent;
    transition:background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(9,14,26,.82);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom-color:var(--line-soft);
  }
  .header-inner{display:flex;align-items:center;gap:24px;height:var(--header-h)}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{
    display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
    color:#04120E;font-weight:800;font-size:14px;letter-spacing:.02em;
    box-shadow:0 6px 20px -8px rgba(25,227,177,.8);
  }
  .logo-text{display:flex;flex-direction:column;font-weight:700;font-size:16px;line-height:1.15;letter-spacing:.01em}
  .logo-text small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.08em;margin-top:2px}
  .main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
  .nav-link{
    position:relative;padding:10px 14px;border-radius:10px;font-size:15px;
    color:var(--muted);
  }
  .nav-link::after{
    content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
    background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.045)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.active{color:var(--text);font-weight:600}
  .nav-link.active::after{transform:scaleX(1)}
  .header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .menu-toggle{
    display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
    background:var(--glass);align-items:center;justify-content:center;cursor:pointer;
  }
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}

  /* ---------- buttons ---------- */
  .glow-btn,.ghost-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
    cursor:pointer;border:1px solid transparent;white-space:nowrap;
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), border-color .22s var(--ease), filter .22s var(--ease);
  }
  .glow-btn{
    background:linear-gradient(135deg,#19E3B1,#12C9C0);
    color:#04120E;box-shadow:var(--shadow-glow);
  }
  .glow-btn:hover{color:#04120E;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 36px -10px rgba(25,227,177,.75)}
  .glow-btn:active{transform:translateY(1px);box-shadow:none}
  .ghost-btn{
    background:var(--glass);color:var(--text);border-color:rgba(255,255,255,.18);
    backdrop-filter:blur(12px);
  }
  .ghost-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
  .ghost-btn:active{transform:translateY(1px)}
  .btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}

  /* ---------- hero ---------- */
  .page-hero{
    position:relative;padding:calc(var(--header-h) + 72px) 0 64px;overflow:hidden;
    border-bottom:1px solid var(--line-soft);
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    opacity:.30;
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(6,10,20,.82) 0%, rgba(6,10,20,.93) 62%, #0D1526 100%);
  }
  .hero-inner{position:relative;z-index:2;max-width:860px}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
  .breadcrumb a{color:var(--muted)}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{opacity:.5}
  .breadcrumb .current{color:var(--primary)}
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
    font-size:12px;letter-spacing:.02em;
    border:1px solid rgba(25,227,177,.35);background:rgba(25,227,177,.10);color:var(--primary);
  }
  .badge.violet{border-color:rgba(124,92,255,.42);background:rgba(124,92,255,.14);color:#B9A7FF}
  .badge.orange{border-color:rgba(255,138,60,.42);background:rgba(255,138,60,.14);color:#FFB98A}
  .hero-inner h1{
    font-size:44px;line-height:1.18;font-weight:700;margin:18px 0 14px;letter-spacing:.005em;
  }
  .hero-inner h1 .hl{
    background:linear-gradient(135deg,#19E3B1,#7C5CFF);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-lead{font-size:17px;color:var(--muted);max-width:660px;margin:0 0 30px}
  .hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .glass-pill{
    display:flex;flex-direction:column;gap:2px;padding:12px 20px;border-radius:999px;
    background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
  }
  .glass-pill b{font-size:16px;font-variant-numeric:tabular-nums;color:var(--text)}
  .glass-pill span{font-size:12px;color:var(--muted)}

  /* ---------- sections ---------- */
  section.block{padding:96px 0}
  section.block.tight{padding:72px 0}
  .section-head{max-width:720px;margin-bottom:44px}
  .section-head h2{font-size:30px;line-height:1.3;font-weight:700;margin:14px 0 12px}
  .section-head p{color:var(--muted);margin:0}
  .eyebrow{font-size:12px;letter-spacing:.16em;color:var(--primary);font-weight:600}

  /* ---------- faq layout ---------- */
  .faq-layout{display:grid;grid-template-columns:268px minmax(0,1fr);gap:40px;align-items:start}
  .faq-side{
    position:sticky;top:calc(var(--header-h) + 28px);
    background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:22px;backdrop-filter:blur(16px);box-shadow:var(--shadow-card);
  }
  .faq-side h2{font-size:15px;font-weight:600;margin:0 0 14px;color:var(--text);letter-spacing:.02em}
  .side-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
  .side-nav a{
    display:flex;align-items:center;justify-content:space-between;gap:8px;
    padding:10px 12px;border-radius:10px;font-size:14px;color:var(--muted);
    border-left:2px solid transparent;
  }
  .side-nav a:hover{background:rgba(255,255,255,.05);color:var(--text);border-left-color:rgba(25,227,177,.6)}
  .side-nav a.is-active{color:var(--primary);border-left-color:var(--primary);background:rgba(25,227,177,.08)}
  .side-nav a em{font-style:normal;font-size:12px;color:var(--disabled);font-variant-numeric:tabular-nums}
  .side-help{font-size:13px;color:var(--muted);line-height:1.8;border-top:1px solid var(--line-soft);padding-top:16px}
  .side-help a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}

  .faq-search{position:relative;margin-bottom:20px}
  .faq-search input{
    width:100%;padding:14px 16px 14px 44px;border-radius:12px;
    background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
    transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
  }
  .faq-search input::placeholder{color:var(--disabled)}
  .faq-search input:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 4px rgba(25,227,177,.14);background:rgba(255,255,255,.07);
  }
  .faq-search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:var(--disabled)}

  .faq-group{margin-bottom:44px;scroll-margin-top:calc(var(--header-h) + 32px)}
  .faq-group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
  .faq-group-head h3{font-size:20px;font-weight:600;margin:0}
  .faq-group-head .count{
    font-size:12px;color:var(--muted);padding:3px 10px;border-radius:999px;
    border:1px solid var(--line);background:rgba(255,255,255,.04);font-variant-numeric:tabular-nums;
  }
  .faq-list{display:flex;flex-direction:column;gap:12px}
  .faq-item{
    border:1px solid var(--line);border-radius:14px;background:var(--glass);
    overflow:hidden;transition:border-color .24s var(--ease), box-shadow .24s var(--ease), background .24s var(--ease);
  }
  .faq-item:hover{border-color:rgba(25,227,177,.35);box-shadow:0 0 40px -18px rgba(25,227,177,.55)}
  .faq-item[open]{border-color:rgba(25,227,177,.4);background:rgba(25,227,177,.045)}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
    padding:18px 20px;font-weight:600;font-size:16px;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-q{
    flex:0 0 auto;width:26px;height:26px;border-radius:999px;display:grid;place-items:center;
    background:rgba(25,227,177,.14);color:var(--primary);font-size:13px;font-weight:600;margin-top:2px;
  }
  .faq-icon{position:relative;flex:0 0 auto;width:16px;height:16px;margin-left:auto;margin-top:6px;color:var(--muted)}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:currentColor;border-radius:2px;
    transition:transform .24s var(--ease), opacity .24s var(--ease), background .24s var(--ease);
  }
  .faq-icon::before{left:0;right:0;top:7px;height:2px}
  .faq-icon::after{top:0;bottom:0;left:7px;width:2px}
  .faq-item[open] .faq-icon{color:var(--primary)}
  .faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
  .faq-a{padding:0 22px 20px 60px;color:var(--muted);font-size:15px;line-height:1.9}
  .faq-a strong{color:var(--text);font-weight:600}
  .faq-a .path{
    display:inline-block;margin:0 2px;padding:1px 8px;border-radius:6px;font-size:13px;
    background:rgba(124,92,255,.16);color:#C3B6FF;border:1px solid rgba(124,92,255,.24);
  }
  .faq-item.is-hidden{display:none}
  .faq-group.is-hidden{display:none}
  .faq-empty{
    display:none;padding:28px;border-radius:14px;border:1px dashed var(--line);
    text-align:center;color:var(--muted);font-size:15px;
  }
  .faq-empty.show{display:block}

  .mini-cta{
    margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
    padding:16px 20px;border-radius:14px;
    background:linear-gradient(135deg, rgba(25,227,177,.10), rgba(124,92,255,.10));
    border:1px solid var(--line);
  }
  .mini-cta p{margin:0;font-size:14px;color:var(--muted);flex:1 1 240px}
  .mini-cta a.link{
    font-size:14px;font-weight:600;color:var(--primary);
    text-decoration:underline;text-underline-offset:4px;
  }

  /* ---------- help cards ---------- */
  .help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  .help-card{
    background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:24px;box-shadow:var(--shadow-card);
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    display:flex;flex-direction:column;gap:12px;
  }
  .help-card:hover{transform:translateY(-4px);border-color:rgba(25,227,177,.35);box-shadow:0 0 40px -12px rgba(25,227,177,.45)}
  .help-card img{aspect-ratio:3/2;width:100%;border:1px solid var(--line-soft)}
  .help-card h3{margin:2px 0 0;font-size:18px;font-weight:600}
  .help-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
  .help-card a.more{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary)}

  /* ---------- steps ---------- */
  .step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
  .step{
    position:relative;padding:26px 22px;border-radius:var(--radius-card);
    background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  }
  .step::before{
    counter-increment:step;content:counter(step,decimal-leading-zero);
    font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.08em;
    display:block;margin-bottom:12px;font-variant-numeric:tabular-nums;
  }
  .step h3{margin:0 0 8px;font-size:17px;font-weight:600}
  .step p{margin:0;font-size:14px;color:var(--muted);line-height:1.8}

  /* ---------- cta ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--radius-block);
    padding:56px 48px;border:1px solid rgba(25,227,177,.22);
    background:linear-gradient(120deg, rgba(25,227,177,.14), rgba(124,92,255,.14) 60%, rgba(255,138,60,.10));
  }
  .cta-band::before{
    content:"";position:absolute;width:420px;height:420px;right:-110px;top:-170px;border-radius:50%;
    background:radial-gradient(circle, rgba(25,227,177,.32), transparent 66%);pointer-events:none;
  }
  .cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center}
  .cta-inner h2{margin:0 0 12px;font-size:28px;line-height:1.32;font-weight:700}
  .cta-inner p{margin:0;color:var(--muted);font-size:15px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

  /* ---------- footer ---------- */
  .site-footer{
    border-top:1px solid var(--line-soft);
    background:rgba(6,10,20,.6);
    padding:64px 0 32px;margin-top:8px;
  }
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
  .footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;margin:18px 0 0;max-width:360px}
  .footer-col h3{font-size:15px;font-weight:600;margin:0 0 16px;color:var(--text)}
  .footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
  .footer-col a{font-size:14px;color:var(--muted)}
  .footer-col a:hover{color:var(--primary)}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--disabled);
  }

  /* ---------- mobile tab ---------- */
  .mobile-tab{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
    padding:8px 8px calc(8px + env(safe-area-inset-bottom));
    background:rgba(9,14,26,.9);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line-soft);
  }
  .mobile-tab ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:2px}
  .mobile-tab a{
    display:flex;flex-direction:column;align-items:center;gap:3px;
    padding:7px 2px;border-radius:12px;font-size:11px;color:var(--disabled);
  }
  .mobile-tab a svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .mobile-tab a.active{color:var(--primary);background:rgba(25,227,177,.10)}
  .mobile-tab a.active svg{filter:drop-shadow(0 0 8px rgba(25,227,177,.6))}
  .mobile-tab a.open-tab span{
    color:#04120E;font-weight:700;background:linear-gradient(135deg,#19E3B1,#12C9C0);
    padding:2px 10px;border-radius:999px;
  }
  .mobile-tab a.open-tab{color:var(--primary)}

  @media (max-width:1023px){
    .container{padding:0 20px}
    .main-nav{display:none}
    .header-actions .ghost-btn{display:none}
    .menu-toggle{display:flex;margin-left:auto}
    .logo-text{font-size:15px}
    .page-hero{padding:calc(var(--header-h) + 48px) 0 48px}
    .hero-inner h1{font-size:32px}
    .hero-lead{font-size:16px}
    section.block{padding:64px 0}
    section.block.tight{padding:52px 0}
    .section-head h2{font-size:25px}
    .faq-layout{grid-template-columns:minmax(0,1fr);gap:26px}
    .faq-side{position:static}
    .side-nav{flex-direction:row;flex-wrap:wrap;gap:8px}
    .side-nav a{border-left:none;border:1px solid var(--line);border-radius:999px;padding:8px 14px}
    .side-nav a:hover{border-left-color:var(--line)}
    .side-nav a.is-active{border-color:var(--primary)}
    .help-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-inner{grid-template-columns:1fr}
    .cta-band{padding:40px 26px}
    .cta-actions{justify-content:flex-start}
    .footer-grid{grid-template-columns:1fr 1fr}
    .mobile-tab{display:block}
    body{padding-bottom:calc(74px + env(safe-area-inset-bottom))}
  }
  @media (max-width:639px){
    .container{padding:0 20px}
    .hero-inner h1{font-size:27px;line-height:1.28}
    .hero-meta{gap:10px}
    .glass-pill{padding:10px 16px;flex:1 1 44%}
    .help-grid{grid-template-columns:1fr}
    .step-grid{grid-template-columns:1fr}
    .faq-a{padding:0 18px 18px 18px}
    .faq-item summary{padding:16px;font-size:15px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;gap:8px}
    .cta-band{padding:34px 20px;border-radius:18px}
    .glow-btn,.ghost-btn{padding:12px 18px;font-size:14px}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  }

/* roulang page: category5 */
:root{
  --bg-0:#060A14;
  --bg-1:#0D1526;
  --primary:#19E3B1;
  --primary-deep:#12C9C0;
  --accent:#FF8A3C;
  --violet:#7C5CFF;
  --text:#E6EEF7;
  --muted:#93A4BD;
  --disabled:#5A6B85;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --card-r:18px;
  --block-r:24px;
  --btn-r:12px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 18px 40px -24px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(25,227,177,.14), transparent 62%),
    radial-gradient(760px 480px at 92% 8%, rgba(124,92,255,.13), transparent 60%),
    linear-gradient(180deg,#060A14 0%,#0A1120 46%,#0D1526 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary)}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(25,227,177,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#0A1120}
::-webkit-scrollbar-thumb{background:rgba(148,164,189,.28);border-radius:999px;border:2px solid #0A1120}
::-webkit-scrollbar-thumb:hover{background:rgba(25,227,177,.5)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(6,10,20,.66);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.scrolled{
  background:rgba(6,10,20,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.9);
}
.header-inner{display:flex;align-items:center;gap:28px;height:70px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,#19E3B1,#12C9C0);
  color:#04120E;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 8px 24px -12px rgba(25,227,177,.9);
}
.logo-text{display:flex;flex-direction:column;color:#fff;font-weight:700;font-size:16px;line-height:1.2}
.logo-text small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.06em;margin-top:2px}
.main-nav{display:none;align-items:center;gap:26px;margin-left:auto}
.nav-link{position:relative;color:var(--muted);font-size:15px;padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:#fff}
.header-cta{display:none;align-items:center;gap:10px;margin-left:8px}
@media(min-width:1024px){
  .main-nav{display:flex}
  .header-cta{display:flex}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--btn-r);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#19E3B1,#12C9C0);
  color:#04120E;
  box-shadow:0 8px 28px -10px rgba(25,227,177,.6);
}
.btn-primary:hover{
  color:#04120E;transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 0 44px -8px rgba(25,227,177,.75);
}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{
  background:var(--glass);border-color:rgba(255,255,255,.18);color:var(--text);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- shared bits ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--card-r);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.card-lift{transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card-lift:hover{
  transform:translateY(-4px);
  border-color:rgba(25,227,177,.35);
  box-shadow:0 0 0 1px rgba(25,227,177,.35),0 0 40px -12px rgba(25,227,177,.45);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;letter-spacing:.02em;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--muted);
}
.tag-primary{border-color:rgba(25,227,177,.4);color:var(--primary);background:rgba(25,227,177,.1)}
.tag-ember{border-color:rgba(255,138,60,.42);color:var(--accent);background:rgba(255,138,60,.1)}
.tag-violet{border-color:rgba(124,92,255,.45);color:#B9A6FF;background:rgba(124,92,255,.12)}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:104px 0}}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:26px;font-weight:700;letter-spacing:.01em}
@media(min-width:1024px){.section-head h2{font-size:32px}}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- hero ---------- */
.hero{position:relative;padding:112px 0 56px;overflow:hidden}
@media(min-width:1024px){.hero{padding:150px 0 84px}}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(6,10,20,.72),rgba(6,10,20,.93)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.9;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(640px 360px at 78% 22%,rgba(25,227,177,.2),transparent 62%);
}
.hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:var(--disabled)}
.crumbs .current{color:var(--primary)}
.hero h1{
  font-size:30px;font-weight:700;letter-spacing:.01em;max-width:14em;
}
@media(min-width:1024px){.hero h1{font-size:44px;line-height:1.22}}
.hero-sub{margin-top:16px;color:var(--muted);font-size:16px;max-width:34em}
@media(min-width:1024px){.hero-sub{font-size:17px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:40px;max-width:760px}
@media(min-width:768px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat{padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid var(--line);backdrop-filter:blur(14px)}
.stat b{display:block;font-size:19px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.stat span{font-size:12.5px;color:var(--muted)}

/* ---------- cycle switch ---------- */
.cycle-switch{
  display:inline-flex;gap:6px;padding:6px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
}
.cycle-btn{
  padding:8px 20px;border-radius:999px;border:0;background:transparent;
  color:var(--muted);font-size:14px;font-weight:600;cursor:pointer;
  transition:all .22s var(--ease);
}
.cycle-btn:hover{color:#fff}
.cycle-btn.active{
  background:linear-gradient(135deg,#19E3B1,#12C9C0);
  color:#04120E;
  box-shadow:0 8px 24px -12px rgba(25,227,177,.9);
}

/* ---------- plans ---------- */
.plans{display:grid;gap:22px;grid-template-columns:1fr;margin-top:36px}
@media(min-width:768px){.plans{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start}}
.plan{
  position:relative;display:flex;flex-direction:column;
  padding:30px 26px;border-radius:var(--block-r);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.plan:hover{transform:translateY(-6px);border-color:rgba(25,227,177,.32)}
.plan.featured{
  border-color:rgba(25,227,177,.55);
  box-shadow:0 0 0 1px rgba(25,227,177,.32),0 0 56px -18px rgba(25,227,177,.7);
  transform:translateY(-8px);
}
.plan.featured:hover{transform:translateY(-12px)}
.plan-flag{
  position:absolute;top:-13px;left:26px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:linear-gradient(135deg,#FF8A3C,#FF6B3C);color:#20100A;
  box-shadow:0 10px 26px -12px rgba(255,138,60,.95);
}
.plan h3{font-size:20px;font-weight:700;display:flex;align-items:center;gap:8px}
.plan-desc{margin-top:8px;font-size:13.5px;color:var(--muted);min-height:44px}
.price-row{display:flex;align-items:baseline;gap:8px;margin-top:18px}
.price-num{font-size:40px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1}
.price-unit{font-size:14px;color:var(--muted)}
.price-note{margin-top:8px;font-size:13px;color:var(--accent)}
.plan-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:#D3DEEC}
.plan-list li i{color:var(--primary);margin-top:5px;font-size:12px}
.plan-list li.dim{color:var(--disabled)}
.plan-list li.dim i{color:var(--disabled)}
.plan .btn{margin-top:24px}

/* ---------- steps ---------- */
.steps{display:grid;gap:18px;grid-template-columns:1fr;margin-top:36px}
@media(min-width:768px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{
  position:relative;padding:26px 22px 24px;border-radius:var(--card-r);
  background:rgba(255,255,255,.045);border:1px solid var(--line);overflow:hidden;
}
.step-num{
  font-size:52px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(25,227,177,.42);
  font-variant-numeric:tabular-nums;
}
.step h3{margin-top:14px;font-size:17px;font-weight:600}
.step p{margin-top:8px;font-size:14px;color:var(--muted)}
.step::after{
  content:"";position:absolute;right:-28px;bottom:-28px;width:96px;height:96px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,227,177,.24),transparent 70%);
}

/* ---------- form ---------- */
.form-wrap{display:grid;gap:30px;grid-template-columns:1fr}
@media(min-width:1024px){.form-wrap{grid-template-columns:5fr 7fr;gap:44px;align-items:start}}
.aside-media{
  border-radius:var(--block-r);overflow:hidden;border:1px solid var(--line);
  position:relative;box-shadow:var(--shadow-card);
}
.aside-media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.aside-media .cap{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:13.5px;color:#DCE7F4;
  background:linear-gradient(180deg,transparent,rgba(6,10,20,.92));
}
.form-card{
  padding:28px;border-radius:var(--block-r);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  box-shadow:var(--shadow-card);backdrop-filter:blur(18px);
}
@media(min-width:1024px){.form-card{padding:34px}}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px}
.field input[type="tel"],.field input[type="text"]{
  width:100%;padding:13px 16px;border-radius:var(--btn-r);
  background:rgba(6,10,20,.6);border:1px solid rgba(255,255,255,.14);
  color:var(--text);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:var(--disabled)}
.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(25,227,177,.18)}
.field.invalid input{border-color:#FF5D6C;box-shadow:0 0 0 3px rgba(255,93,108,.16)}
.field .hint{display:block;margin-top:6px;font-size:12px;color:#FF8A99;min-height:16px}
.code-row{display:flex;gap:10px}
.code-row input{flex:1}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-top:6px;font-size:13.5px;color:var(--muted)}
.check-row input[type="checkbox"]{
  appearance:none;-webkit-appearance:none;width:18px;height:18px;flex-shrink:0;margin-top:3px;
  border:1px solid rgba(255,255,255,.24);border-radius:5px;background:rgba(6,10,20,.6);
  cursor:pointer;position:relative;transition:all .2s var(--ease);
}
.check-row input[type="checkbox"]:checked{background:linear-gradient(135deg,#19E3B1,#12C9C0);border-color:transparent}
.check-row input[type="checkbox"]:checked::after{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;
  border:solid #04120E;border-width:0 2px 2px 0;transform:rotate(45deg);
}
.check-row a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.form-alert{
  margin-top:16px;padding:12px 16px;border-radius:var(--btn-r);font-size:13.5px;display:none;
  border:1px solid rgba(25,227,177,.4);background:rgba(25,227,177,.1);color:#9BF3DC;
}
.form-alert.show{display:block}
.form-alert.error{border-color:rgba(255,93,108,.5);background:rgba(255,93,108,.12);color:#FFB3BA}

/* ---------- safety ---------- */
.safety-list{display:flex;flex-direction:column;gap:18px;margin-top:8px}
.safety-item{display:flex;gap:14px;padding:18px;border-radius:var(--card-r);background:rgba(255,255,255,.045);border:1px solid var(--line);transition:border-color .22s var(--ease),transform .22s var(--ease)}
.safety-item:hover{border-color:rgba(25,227,177,.32);transform:translateY(-3px)}
.safety-item .ico{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(25,227,177,.12);color:var(--primary);border:1px solid rgba(25,227,177,.26);font-size:16px;
}
.safety-item h3{font-size:16px;font-weight:600}
.safety-item p{margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;margin-top:32px}
.faq details{
  border-radius:var(--card-r);border:1px solid var(--line);
  background:rgba(255,255,255,.045);overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq details[open]{border-color:rgba(25,227,177,.38);background:rgba(25,227,177,.05)}
.faq summary{
  display:flex;align-items:center;gap:14px;cursor:pointer;list-style:none;
  padding:18px 20px;font-size:15.5px;font-weight:600;color:#F2F7FC;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(124,92,255,.18);border:1px solid rgba(124,92,255,.4);color:#C0B2FF;font-size:12px;font-weight:700;
}
.faq summary .plus{
  margin-left:auto;color:var(--primary);font-size:14px;
  transition:transform .24s var(--ease);
}
.faq details[open] summary .plus{transform:rotate(180deg)}
.faq .answer{padding:0 20px 20px 60px;color:var(--muted);font-size:14.5px}
.faq .answer a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--block-r);
  padding:44px 28px;text-align:center;
  background:linear-gradient(135deg,rgba(25,227,177,.16),rgba(124,92,255,.16));
  border:1px solid rgba(25,227,177,.3);
  box-shadow:0 0 70px -28px rgba(25,227,177,.7);
}
@media(min-width:1024px){.cta-band{padding:64px 48px}}
.cta-band h2{font-size:26px;font-weight:700}
@media(min-width:1024px){.cta-band h2{font-size:34px}}
.cta-band p{margin:14px auto 0;color:#BFD0E2;max-width:36em;font-size:15.5px}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:72px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,21,38,.6),rgba(6,10,20,.95));
  padding:56px 0 28px;position:relative;z-index:1;
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.footer-brand p{margin-top:16px;color:var(--muted);font-size:14px;max-width:34em}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.03em;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--disabled);
}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-around;
  height:62px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(8,13,24,.94);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-top:1px solid var(--line);
}
.tab-item{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:11.5px;color:var(--muted);flex:1;padding:6px 0;
  transition:color .2s var(--ease);
}
.tab-item i{font-size:17px}
.tab-item:hover,.tab-item.active{color:var(--primary)}
.tab-item.active i{filter:drop-shadow(0 0 8px rgba(25,227,177,.7))}
.tab-item.tab-cta{color:#04120E}
.tab-item.tab-cta .pill{
  display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:999px;
  background:linear-gradient(135deg,#19E3B1,#12C9C0);font-size:13px;font-weight:700;
  box-shadow:0 8px 24px -12px rgba(25,227,177,.95);
}
@media(min-width:1024px){.mobile-tabbar{display:none}}
@media(max-width:1023px){
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom))}
}

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