/* roulang page: index */
:root{
  --bg:#070B16;
  --bg-2:#0A1020;
  --card:#121A2C;
  --card-hi:#1A2338;
  --line:#1E2A44;
  --line-soft:rgba(120,180,255,.14);
  --line-faint:rgba(120,180,255,.10);
  --brand:#38E1D6;
  --brand-deep:#17B3A9;
  --accent:#FF7A3D;
  --violet:#6D5AE6;
  --tx:#E6EDF7;
  --tx-2:#9AA9C2;
  --tx-3:#6B7A96;
  --inv:#061019;
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5C6C;
  --r-card:16px;
  --r-sm:12px;
  --r-input:10px;
  --r-btn:12px;
  --sh-card:0 20px 40px -24px rgba(0,0,0,.85);
  --sh-hover:0 28px 56px -24px rgba(0,0,0,.9);
  --sh-glow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -12px rgba(56,225,214,.55);
  --dur:180ms;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--tx);
  background:var(--bg);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(56,225,214,.10),transparent 62%),
    radial-gradient(760px 480px at 92% 4%,rgba(109,90,230,.12),transparent 60%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(56,225,214,.28)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:46px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--dur) ease-out,box-shadow var(--dur) ease-out,background-color var(--dur) ease-out,border-color var(--dur) ease-out,color var(--dur) ease-out,filter var(--dur) ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand) 0%,var(--violet) 100%);
  color:var(--inv);
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(56,225,214,.5),0 18px 42px -12px rgba(56,225,214,.65)}
.btn-ghost{
  background:transparent;color:var(--tx);border:1px solid #2A3A5C;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
}
.btn-link .arw{transition:transform var(--dur) ease-out;display:inline-block}
.btn-link:hover .arw{transform:translateX(3px)}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;pointer-events:none}

.chip-cut{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(56,225,214,.14);color:var(--brand);
  border:1px solid rgba(56,225,214,.34);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.chip-cut.rec{background:rgba(255,122,61,.16);color:var(--accent);border-color:rgba(255,122,61,.4)}
.chip-cut.lock{background:rgba(109,90,230,.2);color:#B7ACFF;border-color:rgba(109,90,230,.45)}

.glass{
  background:rgba(18,26,44,.55);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card),inset 0 1px 0 rgba(255,255,255,.06);
}

.section{padding:104px 0}
.section-sm{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.sec-head h2{font-size:clamp(23px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.sec-head p{color:var(--tx-2);font-size:15px;margin-top:12px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;color:var(--tx-3);margin-bottom:16px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--brand);display:block}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
.brand{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--tx)}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:9px;
  background:linear-gradient(140deg,var(--brand),var(--violet));
  box-shadow:0 0 0 1px rgba(56,225,214,.4),0 0 20px -4px rgba(56,225,214,.75);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px;border-radius:4px;
  background:var(--bg);opacity:.55;
  clip-path:polygon(50% 0,100% 100%,0 100%);
}
.brand span{white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:14px;color:var(--tx-2);padding:6px 0;
  transition:color var(--dur) ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);transition:width var(--dur) ease-out;border-radius:2px;
}
.nav-link:hover{color:var(--tx)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-cta{height:38px;padding:0 16px;font-size:13px;border-radius:10px}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-burger i{display:block;width:16px;height:1.5px;background:var(--tx);transition:transform .24s ease-out,opacity .24s ease-out}
body.nav-open .nav-burger i:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
body.nav-open .nav-burger i:nth-child(2){opacity:0}
body.nav-open .nav-burger i:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.nav-drawer{
  position:fixed;inset:72px 0 0 0;z-index:79;
  background:rgba(7,11,22,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:36px 24px;
  display:none;flex-direction:column;gap:6px;
}
body.nav-open .nav-drawer{display:flex}
.nav-drawer a{
  font-size:19px;font-weight:600;padding:16px 4px;border-bottom:1px solid var(--line-faint);
  opacity:0;transform:translateY(8px);
  animation:drawerIn .32s ease-out forwards;
}
.nav-drawer a:nth-child(1){animation-delay:.04s}
.nav-drawer a:nth-child(2){animation-delay:.08s}
.nav-drawer a:nth-child(3){animation-delay:.12s}
.nav-drawer a:nth-child(4){animation-delay:.16s}
.nav-drawer a:nth-child(5){animation-delay:.2s}
.nav-drawer a.is-active{color:var(--brand)}
@keyframes drawerIn{to{opacity:1;transform:none}}

/* ============ Hero ============ */
.hero{position:relative;padding:150px 0 96px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(760px 460px at 78% 22%,rgba(56,225,214,.16),transparent 62%),
    radial-gradient(620px 420px at 6% 78%,rgba(109,90,230,.16),transparent 64%);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;
}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);line-height:1.15;font-weight:700;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:16px;line-height:1.8;color:var(--tx-2);max-width:520px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line-faint);padding-top:24px}
.metric{flex:1 1 130px;min-width:120px;padding-right:24px}
.metric + .metric{border-left:1px solid var(--line-faint);padding-left:24px}
.metric b{display:block;font-family:var(--mono);font-size:26px;font-weight:700;color:var(--tx);letter-spacing:-.02em}
.metric b i{font-style:normal;color:var(--brand);font-size:18px;margin-left:2px}
.metric span{display:block;font-size:12px;letter-spacing:.02em;color:var(--tx-3);margin-top:6px}

.hero-visual{position:relative}
.hero-card{
  position:relative;border-radius:20px;overflow:hidden;padding:0;
  min-height:400px;
  background:linear-gradient(160deg,#0F1830 0%,#131C33 55%,#0A1020 100%);
  border:1px solid var(--line-soft);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.95);
}
.hero-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;
}
.hero-card .veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.45),rgba(7,11,22,.92));
}
.hero-card .scan{
  position:absolute;inset:0;opacity:.35;
  background-image:
    repeating-linear-gradient(0deg,rgba(120,180,255,.07) 0 1px,transparent 1px 4px),
    repeating-linear-gradient(90deg,rgba(120,180,255,.05) 0 1px,transparent 1px 56px);
}
.hero-card-body{position:relative;z-index:2;padding:28px;height:100%;display:flex;flex-direction:column;justify-content:space-between;min-height:400px}
.hero-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.hero-card-title{font-size:20px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px}
.hero-card-desc{font-size:14px;color:var(--tx-2);line-height:1.7}
.hero-route{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.route-item{
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(10,16,32,.6);border:1px solid var(--line-faint);
  font-size:13px;color:var(--tx-2);
}
.route-dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 8px;
  box-shadow:0 0 0 4px rgba(56,225,214,.14);
}
.route-item.done .route-dot{background:var(--violet);box-shadow:0 0 0 4px rgba(109,90,230,.16)}
.route-progress{height:3px;border-radius:3px;background:rgba(120,180,255,.12);overflow:hidden;margin-top:20px}
.route-progress i{display:block;height:100%;width:68%;border-radius:3px;background:linear-gradient(90deg,var(--brand),var(--violet))}

/* ============ 权益对比表 ============ */
.compare-wrap{padding:8px;overflow:hidden}
.cmp-scroll{overflow-x:auto;border-radius:var(--r-sm);position:relative}
.cmp-table{width:100%;border-collapse:collapse;min-width:640px}
.cmp-table thead th{
  position:sticky;top:0;z-index:2;
  background:#0E1729;
  height:56px;padding:0 20px;text-align:left;
  font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--tx-2);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.cmp-table thead th:first-child{color:var(--tx-3);font-weight:500}
.cmp-table thead th.is-rec{color:var(--tx);border-left:1px solid rgba(56,225,214,.4);border-right:1px solid rgba(56,225,214,.4);position:relative}
.cmp-table thead th.is-rec .chip-cut{margin-right:8px}
.cmp-table tbody td{
  padding:15px 20px;font-size:14px;color:var(--tx-2);
  border-bottom:1px solid var(--line-faint);
}
.cmp-table tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody td:first-child{color:var(--tx);font-weight:500}
.cmp-table tbody td.is-rec{border-left:1px solid rgba(56,225,214,.28);border-right:1px solid rgba(56,225,214,.28);background:rgba(56,225,214,.04)}
.cmp-table tbody tr:nth-child(even) td.is-rec{background:rgba(56,225,214,.06)}
.mark-yes{color:var(--brand);font-weight:700}
.mark-no{color:var(--tx-3)}

.cmp-mobile{display:none;gap:16px}
.cmp-card{padding:22px}
.cmp-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line-faint);margin-bottom:14px}
.cmp-card-head h3{font-size:16px;font-weight:700}
.cmp-list{display:flex;flex-direction:column;gap:10px}
.cmp-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--tx-2)}
.cmp-list li::before{
  content:"×";flex:0 0 18px;width:18px;height:18px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;line-height:1;color:var(--tx-3);
  background:rgba(120,180,255,.08);margin-top:3px;
}
.cmp-list li.on{color:var(--tx)}
.cmp-list li.on::before{content:"✓";color:var(--inv);background:var(--brand)}

/* ============ 等级亮点 ============ */
.level-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch}
.level-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.level-card{
  padding:30px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:transform var(--dur) ease-out,border-color var(--dur) ease-out,box-shadow var(--dur) ease-out;
}
.level-card:hover{transform:translateY(-4px);border-color:rgba(56,225,214,.4);box-shadow:var(--sh-hover)}
.level-card.hero-level{justify-content:space-between;padding:36px}
.level-num{
  font-family:var(--mono);font-size:44px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(56,225,214,.5);letter-spacing:-.03em;
}
.level-card.hero-level .level-num{font-size:64px}
.level-name{font-size:20px;font-weight:700;margin:18px 0 10px;letter-spacing:-.01em}
.level-desc{font-size:15px;color:var(--tx-2);line-height:1.8}
.level-points{margin:22px 0 0;padding:20px 0 0;border-top:1px solid var(--line-faint);display:flex;flex-direction:column;gap:11px}
.level-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--tx-2)}
.level-points li::before{content:"";flex:0 0 6px;width:6px;height:6px;border-radius:2px;background:var(--brand);margin-top:9px}
.level-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line-faint);display:flex;align-items:center;justify-content:space-between}
.level-card.hero-level .level-foot{margin-top:26px}

/* ============ 专属内容预览 ============ */
.preview-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:24px}
.preview-main .cov{aspect-ratio:16/10}
.preview-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.preview-side .cov{aspect-ratio:4/3}
.cov{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(135deg,#121A2C,#1A2338);
  border:1px solid var(--line);
}
.cov img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out}
.cov::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.15),rgba(7,11,22,.82))}
.cov .lock-badge{position:absolute;top:14px;left:14px;z-index:2}
.cov .cov-txt{position:absolute;left:20px;right:20px;bottom:18px;z-index:2}
.cov .cov-txt h3{font-size:17px;font-weight:700;letter-spacing:-.01em}
.cov .cov-txt p{font-size:13px;color:var(--tx-2);margin-top:6px}
.cov:hover img{transform:scale(1.04)}
.cov-wrap{display:block;border-radius:var(--r-card);transition:transform var(--dur) ease-out}
.cov-wrap:hover{transform:translateY(-4px)}
.cov-wrap:hover .cov{border-color:rgba(56,225,214,.4)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--card);border:1px solid var(--line);
  transition:transform var(--dur) ease-out,border-color var(--dur) ease-out,box-shadow var(--dur) ease-out;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(56,225,214,.4);box-shadow:var(--sh-hover)}
.news-cover{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#121A2C,#1A2338);overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body .chip-cut{align-self:flex-start}
.news-title{font-size:17px;font-weight:700;line-height:1.5;letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-excerpt{font-size:14px;line-height:1.7;color:var(--tx-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-faint);font-size:12px;color:var(--tx-3)}
.news-more{color:var(--brand);font-weight:600}
.empty-state{
  grid-column:1/-1;
  padding:56px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(18,26,44,.4);
}
.empty-state p{color:var(--tx-2);font-size:15px;margin-bottom:18px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside h2{font-size:clamp(23px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.faq-aside p{color:var(--tx-2);font-size:15px;margin-top:16px}
.faq-aside .btn{margin-top:26px}
.faq-panel{padding:8px 26px}
.faq-item{border-bottom:1px solid var(--line-faint)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 0;
  font-size:16px;font-weight:600;color:var(--tx);
  transition:color var(--dur) ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"+";flex:0 0 22px;width:22px;height:22px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;color:var(--tx-2);
  background:rgba(120,180,255,.08);
  transition:transform .24s ease-out,color .24s ease-out,background-color .24s ease-out;
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--inv);background:var(--brand)}
.faq-item .answer{
  padding:0 42px 20px 18px;font-size:15px;line-height:1.85;color:var(--tx-2);
  border-left:2px solid var(--brand);margin-bottom:16px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band .light{
  position:absolute;top:-60%;left:-10%;width:70%;height:220%;
  background:linear-gradient(100deg,transparent 30%,rgba(109,90,230,.28) 50%,transparent 70%);
  transform:rotate(14deg);pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:620px}
.cta-text h2{font-size:clamp(21px,2.6vw,28px);font-weight:700;letter-spacing:-.01em;margin-bottom:12px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:16px}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx-2)}
.cta-points li::before{content:"✓";color:var(--brand);font-size:12px;font-weight:700}
.cta-band .btn{position:relative;z-index:2}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:var(--bg-2)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-col h3{font-size:13px;letter-spacing:.04em;color:var(--tx-3);font-weight:600;margin-bottom:18px}
.footer-col p{font-size:14px;color:var(--tx-2);line-height:1.8;max-width:300px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;font-size:16px;font-weight:700}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--tx-2);transition:color var(--dur) ease-out}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line-faint);padding:22px 0 34px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--tx-3);letter-spacing:.02em;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero-grid{gap:40px}
  .level-grid{grid-template-columns:1.2fr 1fr}
}
@media (max-width:992px){
  .section{padding:80px 0}
  .hero{padding:130px 0 72px}
  .nav-menu{display:none}
  .nav-burger{display:flex}
  .nav-cta{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-sub{max-width:none}
  .hero-card,.hero-card-body{min-height:340px}
  .cmp-scroll{display:none}
  .cmp-mobile{display:grid;grid-template-columns:repeat(3,1fr)}
  .level-grid{grid-template-columns:1fr}
  .level-side{grid-template-rows:none;grid-template-columns:1fr 1fr;gap:24px}
  .preview-grid{grid-template-columns:1fr}
  .preview-side{grid-template-rows:none;grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-sm{padding:52px 0}
  .hero{padding:118px 0 56px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .news-grid{grid-template-columns:1fr}
  .cmp-mobile{grid-template-columns:1fr}
  .level-side{grid-template-columns:1fr}
  .preview-side{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:32px 24px}
  .faq-panel{padding:6px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .hero h1{font-size:28px}
  .hero-cta .btn{width:100%}
  .hero-metrics{flex-direction:column;gap:16px}
  .metric{padding-right:0}
  .metric + .metric{border-left:0;padding-left:0;border-top:1px solid var(--line-faint);padding-top:16px}
  .metric b{font-size:22px}
  .level-num{font-size:34px}
  .level-card.hero-level .level-num{font-size:44px}
  .cta-band .btn{width:100%}
  .footer-bottom{font-size:11px}
}
@media (max-width:400px){
  .brand span{font-size:14px}
  .hero h1{font-size:25px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .btn-primary{box-shadow:0 0 0 1px rgba(56,225,214,.35)}
}

/* roulang page: article */
:root{
  --bg:#070B16;
  --bg-soft:#0A1020;
  --card:#121A2C;
  --elev:#1A2338;
  --line:#1E2A44;
  --line-soft:rgba(120,180,255,.14);
  --brand:#38E1D6;
  --brand-deep:#17B3A9;
  --accent:#FF7A3D;
  --violet:#6D5AE6;
  --text:#E6EDF7;
  --muted:#9AA9C2;
  --weak:#6B7A96;
  --ink:#061019;
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5C6C;
  --r-card:16px;
  --r-sm:12px;
  --r-input:10px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 28px 56px -24px rgba(0,0,0,.9);
  --glow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -12px rgba(56,225,214,.55);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:
    radial-gradient(1000px 520px at 82% -12%,rgba(109,90,230,.16),transparent 62%),
    radial-gradient(760px 420px at 6% 4%,rgba(56,225,214,.10),transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media(min-width:1440px){.container{max-width:1280px;}}
@media(max-width:560px){.container{padding:0 16px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.86);
  border-bottom-color:var(--line-soft);
  backdrop-filter:blur(14px) saturate(140%);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:600;color:var(--text);white-space:nowrap;}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;display:inline-block;
  background:linear-gradient(135deg,var(--brand),var(--violet));
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  box-shadow:0 0 22px -6px rgba(56,225,214,.75),inset 0 1px 0 rgba(255,255,255,.28);
}
.brand-text{letter-spacing:.01em;}
.nav-menu{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:14px;color:var(--muted);padding:6px 0;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);border-radius:2px;transition:width .18s ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{width:100%;}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;
  border:1px solid #2A3A5C;border-radius:var(--r-sm);
  font-size:13px;color:var(--text);
  transition:border-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.header-cta:hover{border-color:rgba(56,225,214,.7);color:var(--brand);box-shadow:0 0 0 1px rgba(56,225,214,.22);}
.nav-toggle{
  display:none;width:42px;height:38px;border:1px solid #2A3A5C;border-radius:10px;
  background:transparent;padding:0 10px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;height:1.5px;background:var(--text);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),var(--violet));
  color:var(--ink);box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(56,225,214,.45),0 16px 40px -12px rgba(56,225,214,.7);}
.btn-ghost{background:transparent;border-color:#2A3A5C;color:var(--text);}
.btn-ghost:hover{border-color:rgba(56,225,214,.7);color:var(--brand);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none;}
.btn-sm{height:38px;padding:0 16px;font-size:13px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--brand);}
.text-link .arrow{transition:transform .18s ease-out;}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- article head ---------- */
main{padding-top:72px;}
.article-head{border-bottom:1px solid var(--line-soft);padding:56px 0 30px;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--weak);margin-bottom:22px;}
.breadcrumb a{color:var(--weak);transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .crumb-current{color:var(--brand);}
.article-title{
  font-size:clamp(26px,3.4vw,38px);line-height:1.28;letter-spacing:-.015em;
  max-width:900px;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:20px;font-size:12px;color:var(--weak);letter-spacing:.02em;}
.meta-divider{width:1px;height:12px;background:var(--line);display:inline-block;}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;font-size:12px;letter-spacing:.02em;
  background:rgba(56,225,214,.12);color:var(--brand);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.badge-accent{background:rgba(255,122,61,.14);color:var(--accent);}
.badge-soft{background:rgba(109,90,230,.16);color:#B9AEF7;}

/* ---------- article body ---------- */
.article-main{padding:52px 0 8px;}
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.85;color:#C9D4E6;}
.article-body>p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:clamp(21px,2.4vw,26px);line-height:1.35;color:var(--text);
  margin:48px 0 18px;padding-left:14px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;width:6px;height:1em;background:var(--brand);border-radius:3px;}
.article-body h3{font-size:19px;line-height:1.45;color:var(--text);margin:34px 0 12px;}
.article-body h4{font-size:16px;color:var(--text);margin:26px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em;}
.article-body ul li{list-style:none;position:relative;padding-left:16px;margin-bottom:.5em;}
.article-body ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--brand);transform:rotate(45deg);}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:.5em;padding-left:4px;}
.article-body ol li::marker{color:var(--brand);font-family:var(--mono);}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;
  background:#0F1728;border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;border:1px solid var(--line-soft);margin:28px auto;}
.article-body figure{margin:28px 0;}
.article-body figcaption{font-size:12px;color:var(--weak);text-align:center;margin-top:10px;letter-spacing:.02em;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(56,225,214,.4);transition:color .18s ease-out,border-color .18s ease-out;}
.article-body a:hover{color:#7DF0E7;border-bottom-color:#7DF0E7;}
.article-body code{
  font-family:var(--mono);font-size:14px;
  background:#0F1728;border:1px solid var(--line);border-radius:6px;padding:2px 6px;color:#9EEFE8;
}
.article-body pre{
  background:#0B1220;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;overflow-x:auto;margin:28px 0;
}
.article-body pre code{background:none;border:0;padding:0;color:#C9D4E6;font-size:14px;line-height:1.7;}
.article-body table{
  width:100%;border-collapse:collapse;margin:28px 0;font-size:14px;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.article-body th{background:#0F1728;color:var(--text);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid rgba(120,180,255,.10);}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:36px 0;}

/* ---------- empty ---------- */
.empty-state{
  max-width:760px;margin:24px auto;padding:56px 28px;text-align:center;
  border:1px dashed rgba(120,180,255,.26);border-radius:var(--r-card);background:rgba(18,26,44,.4);
}
.empty-title{font-size:19px;font-weight:600;color:var(--text);margin-bottom:10px;}
.empty-text{font-size:14px;color:var(--weak);margin-bottom:22px;}

/* ---------- related ---------- */
.section{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;}
.section-head p{font-size:14px;color:var(--weak);margin-top:8px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform .24s ease-out,border-color .24s ease-out,box-shadow .24s ease-out;
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(56,225,214,.45);box-shadow:var(--shadow-hover);}
.rec-thumb{
  aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,#121A2C,#1A2338);
}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.rec-body h3{font-size:16px;line-height:1.5;color:var(--text);}
.rec-body p{font-size:14px;line-height:1.7;color:var(--weak);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--weak);}

/* ---------- cta ---------- */
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 44px;border-radius:var(--r-card);
  background:rgba(18,26,44,.55);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line-soft);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.cta-bar::before{
  content:"";position:absolute;top:-60%;left:-12%;width:60%;height:220%;
  background:linear-gradient(90deg,transparent,rgba(56,225,214,.12),transparent);
  transform:rotate(14deg);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;}
.cta-copy p{font-size:14px;color:var(--muted);margin-top:10px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}
.pulse{animation:breathe 3.6s ease-in-out infinite;}
@keyframes breathe{
  0%,100%{box-shadow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -12px rgba(56,225,214,.55);}
  50%{box-shadow:0 0 0 1px rgba(56,225,214,.6),0 18px 46px -12px rgba(56,225,214,.85);}
}

/* ---------- footer ---------- */
.site-footer{margin-top:96px;padding:64px 0 28px;background:var(--bg-soft);border-top:1px solid var(--line-soft);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px;}
.footer-col h3{font-size:13px;font-weight:600;color:var(--weak);letter-spacing:.04em;margin-bottom:14px;}
.footer-col p{font-size:14px;line-height:1.75;color:var(--muted);}
.footer-links a{display:block;font-size:14px;color:var(--muted);padding:6px 0;transition:color .18s ease-out;}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line-soft);
  font-size:12px;color:var(--weak);letter-spacing:.02em;
}

@media(max-width:1200px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media(max-width:992px){
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    display:none;flex-direction:column;align-items:flex-start;gap:0;
    padding:24px;background:rgba(7,11,22,.97);
    backdrop-filter:blur(16px);border-top:1px solid var(--line-soft);
    overflow-y:auto;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu .nav-link{font-size:16px;padding:14px 0;width:100%;border-bottom:1px solid rgba(120,180,255,.10);opacity:0;animation:navIn .24s ease-out forwards;}
  .nav-menu.is-open .nav-link:nth-child(1){animation-delay:.04s;}
  .nav-menu.is-open .nav-link:nth-child(2){animation-delay:.08s;}
  .nav-menu.is-open .nav-link:nth-child(3){animation-delay:.12s;}
  .nav-menu.is-open .nav-link:nth-child(4){animation-delay:.16s;}
  .nav-menu.is-open .nav-link:nth-child(5){animation-delay:.2s;}
  .nav-link::after{display:none;}
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px 28px;}
}
@keyframes navIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
@media(max-width:768px){
  .section{padding:56px 0;}
  .article-head{padding:40px 0 24px;}
  .article-main{padding:40px 0 8px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}
@media(max-width:560px){
  body{font-size:15px;}
  .brand{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding:44px 0 24px;}
  .btn{height:44px;padding:0 18px;font-size:14px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .article-body{font-size:15px;}
}
@media(max-width:400px){
  .article-title{font-size:24px;}
  .article-meta{font-size:11px;gap:8px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category1 */
:root{
  --bg:#070B16;
  --bg-2:#0A1020;
  --card:#121A2C;
  --card-2:#1A2338;
  --line:#1E2A44;
  --line-soft:rgba(120,180,255,.14);
  --line-faint:rgba(120,180,255,.10);
  --primary:#38E1D6;
  --primary-deep:#17B3A9;
  --accent:#FF7A3D;
  --violet:#6D5AE6;
  --text:#E6EDF7;
  --text-2:#9AA9C2;
  --text-3:#6B7A96;
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5C6C;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.85);
  --shadow-lg:0 28px 56px -24px rgba(0,0,0,.9);
  --glow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -12px rgba(56,225,214,.55);
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(900px 480px at 82% -8%,rgba(109,90,230,.18),transparent 62%),
    radial-gradient(760px 420px at 6% 6%,rgba(56,225,214,.12),transparent 58%),
    var(--bg);
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--primary-deep)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,border-color .24s ease-out,backdrop-filter .24s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.86);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line-soft);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-size:16px;font-weight:600;letter-spacing:-.01em;white-space:nowrap}
.brand:hover{color:var(--text)}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 18px -4px rgba(56,225,214,.85);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:3px;
  background:rgba(6,16,25,.75);
}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 12px;font-size:14px;color:var(--text-2);
  text-decoration:none;transition:color .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--radius-xs);
  background:rgba(18,26,44,.6);border:1px solid var(--line-soft);
  color:var(--text);cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .2s ease-out,top .2s ease-out;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.nav-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:70;
  background:rgba(7,11,22,.97);
  backdrop-filter:blur(16px);
  padding:20px 24px 40px;
  display:flex;flex-direction:column;gap:2px;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.nav-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.nav-drawer a{
  display:block;padding:16px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line-faint);text-decoration:none;
  opacity:0;transform:translateY(8px);
  transition:opacity .3s ease-out,transform .3s ease-out,color .18s;
}
.nav-drawer.is-open a{opacity:1;transform:none}
.nav-drawer.is-open a:nth-child(1){transition-delay:.04s}
.nav-drawer.is-open a:nth-child(2){transition-delay:.08s}
.nav-drawer.is-open a:nth-child(3){transition-delay:.12s}
.nav-drawer.is-open a:nth-child(4){transition-delay:.16s}
.nav-drawer.is-open a:nth-child(5){transition-delay:.2s}
.nav-drawer a.is-active,.nav-drawer a:hover{color:var(--primary)}
.nav-drawer .drawer-cta{margin-top:22px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out,background-color .18s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--violet));
  color:#061019;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#061019;box-shadow:0 0 0 1px rgba(56,225,214,.5),0 16px 40px -12px rgba(56,225,214,.65)}
.btn-primary:active{transform:translateY(0);filter:brightness(.97)}
.btn-ghost{
  background:transparent;border-color:#2A3A5C;color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--radius-xs)}
.btn-text{
  height:auto;padding:0;background:none;border:0;color:var(--primary);
  font-size:14px;font-weight:600;
}
.btn-text:hover{color:var(--primary-deep)}
.btn-text .arrow{transition:transform .18s ease-out}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;box-shadow:none}
.btn-block{width:100%}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:64px 0 64px;border-bottom:1px solid var(--line-faint)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,22,.72),rgba(7,11,22,.96)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.9;z-index:-1;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(rgba(120,180,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 85%);
}
.hero-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:center}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--primary)}
.hero h1{
  font-size:clamp(28px,3.8vw,46px);line-height:1.18;font-weight:700;
  letter-spacing:-.02em;margin-bottom:18px;
}
.hero-lead{max-width:620px;font-size:16px;line-height:1.8;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip-slant{
  display:inline-block;padding:5px 11px;font-size:12px;letter-spacing:.02em;
  color:var(--primary);background:rgba(56,225,214,.13);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.chip-slant.is-accent{color:var(--accent);background:rgba(255,122,61,.14)}
.chip-slant.is-muted{color:var(--text-2);background:rgba(120,180,255,.10)}
.glass-card{
  background:rgba(18,26,44,.55);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.quick-panel{padding:10px 4px}
.quick-title{font-size:13px;letter-spacing:.08em;color:var(--text-3);padding:14px 20px 8px}
.qp-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:14px 20px;border-bottom:1px solid var(--line-faint)}
.qp-row:last-child{border-bottom:0}
.qp-row .qp-label{font-size:14px;color:var(--text-2)}
.qp-row .qp-value{font-family:var(--mono);font-size:16px;color:var(--primary)}

/* ===== Sections ===== */
.section{padding:96px 0}
.section.is-tight{padding:72px 0}
.section.is-alt{background:var(--bg-2);border-top:1px solid var(--line-faint);border-bottom:1px solid var(--line-faint)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--primary);margin-bottom:12px}
.section-head h2{font-size:clamp(23px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;max-width:640px;color:var(--text-2);font-size:15px}
.section-head .head-link{flex:0 0 auto}

/* ===== Split (intro) ===== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.split .body-text{color:var(--text-2);font-size:15px;line-height:1.85}
.split .body-text p+p{margin-top:16px}
.check-list{margin-top:24px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:28px;font-size:15px;color:var(--text)}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;
  border-radius:4px;border:1px solid rgba(56,225,214,.55);
  background:linear-gradient(135deg,rgba(56,225,214,.35),rgba(109,90,230,.25));
}
.media-frame{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line-soft);
  background:linear-gradient(150deg,var(--card),var(--card-2));
  aspect-ratio:4/3;box-shadow:var(--shadow);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,22,.10),rgba(7,11,22,.55));
}
.media-badge{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-size:12px;color:var(--text);padding:6px 12px;border-radius:8px;
  background:rgba(7,11,22,.72);border:1px solid var(--line-soft);
}

/* ===== Stats ===== */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line-soft);border:1px solid var(--line-soft);
  border-radius:var(--radius);overflow:hidden;
}
.stat{background:var(--bg-2);padding:28px 24px}
.stat-num{font-family:var(--mono);font-size:clamp(28px,3.4vw,38px);line-height:1.1;color:var(--primary);letter-spacing:-.02em}
.stat-num small{font-size:14px;color:var(--text-2);margin-left:6px;font-family:var(--sans)}
.stat-label{margin-top:10px;font-size:13px;color:var(--text-2)}
.stat-note{margin-top:4px;font-size:12px;color:var(--text-3)}

/* ===== Timeline ===== */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:7px;top:10px;bottom:14px;width:1px;background:var(--line)}
.tl-item{position:relative;padding:0 0 34px 38px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:6px;width:15px;height:15px;border-radius:50%;
  border:1px solid var(--primary);background:var(--bg);
  box-shadow:0 0 0 5px rgba(56,225,214,.09);
}
.tl-step{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--accent)}
.tl-item h3{font-size:19px;font-weight:600;margin:8px 0 8px}
.tl-item p{font-size:15px;color:var(--text-2);max-width:760px}

/* ===== Cards ===== */
.grid-asym{display:grid;grid-template-columns:1.55fr 1fr;gap:24px}
.grid-asym .stack{display:grid;gap:24px;align-content:start}
.card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(56,225,214,.4)}
.card-thumb{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(150deg,var(--card),var(--card-2));
}
.card-thumb img{width:100%;height:100%;object-fit:cover}
.card-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.06),rgba(7,11,22,.62))}
.card-thumb .thumb-tag{position:absolute;left:16px;top:14px;z-index:2}
.lock-badge{
  position:absolute;right:14px;top:14px;z-index:2;display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--text);padding:5px 10px;border-radius:8px;
  background:rgba(7,11,22,.72);border:1px solid var(--line-soft);
}
.lock-badge::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent)}
.card-body{padding:22px}
.card-body h3{font-size:19px;font-weight:600;line-height:1.45}
.card-body p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--text-2)}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line-faint);
  font-size:12px;color:var(--text-3);
}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.card-link .arrow{transition:transform .18s ease-out}
.card-link:hover .arrow{transform:translateX(3px)}
.card.is-compact .card-body{padding:18px}
.card.is-compact .card-body h3{font-size:17px}

/* ===== Flow ===== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-item{
  position:relative;padding:26px 22px;border-radius:var(--radius);
  background:var(--bg-2);border:1px solid var(--line-soft);
  transition:transform .2s ease-out,border-color .2s ease-out,background-color .2s ease-out;
}
.flow-item:nth-child(2){transform:translateY(18px)}
.flow-item:nth-child(4){transform:translateY(18px)}
.flow-item:hover{border-color:rgba(56,225,214,.4);background:var(--card)}
.flow-item:nth-child(2):hover,.flow-item:nth-child(4):hover{transform:translateY(14px)}
.flow-num{font-family:var(--mono);font-size:13px;color:var(--accent);letter-spacing:.1em}
.flow-item h3{font-size:17px;font-weight:600;margin:10px 0 8px}
.flow-item p{font-size:14px;line-height:1.7;color:var(--text-2)}
.flow-bar{height:3px;border-radius:3px;margin-top:18px;background:linear-gradient(90deg,var(--primary),var(--violet));opacity:.55;width:44%}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start}
.faq-intro h2{font-size:clamp(23px,3vw,32px);line-height:1.28;letter-spacing:-.01em}
.faq-intro p{margin-top:14px;color:var(--text-2);font-size:15px}
.faq-list{border-top:1px solid var(--line-faint)}
.faq-item{border-bottom:1px solid var(--line-faint)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 4px;background:none;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:16px;font-weight:600;line-height:1.55;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--primary);
  transition:transform .24s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{left:50%;top:4px;bottom:4px;width:2px;transform:translateX(-50%)}
.faq-icon::after{top:50%;left:4px;right:4px;height:2px;transform:translateY(-50%)}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 34px 20px 4px;font-size:15px;line-height:1.8;color:var(--text-2)}
.faq-item.is-open .faq-a-inner{border-left:2px solid var(--primary);padding-left:16px}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius);
  padding:44px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:rgba(18,26,44,.55);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line-soft);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;top:-60%;left:-10%;width:60%;height:220%;
  background:linear-gradient(100deg,transparent,rgba(56,225,214,.12),rgba(109,90,230,.12),transparent);
  transform:rotate(12deg);
  animation:ctaSheen 7s ease-in-out infinite;
  pointer-events:none;
}
@keyframes ctaSheen{0%,100%{opacity:.55;transform:rotate(12deg) translateX(0)}50%{opacity:1;transform:rotate(12deg) translateX(60px)}}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;letter-spacing:-.01em}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.cta-points span{
  font-size:12px;color:var(--text-2);padding:5px 11px;border-radius:8px;
  border:1px solid var(--line-soft);background:rgba(7,11,22,.4);
}
.cta-actions{position:relative;z-index:2;flex:0 0 auto}

/* ===== Footer ===== */
.site-footer{
  margin-top:96px;border-top:1px solid var(--line-faint);
  background:linear-gradient(180deg,rgba(10,16,32,.6),rgba(7,11,22,.95));
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-3);max-width:320px}
.footer-col h3{font-size:13px;letter-spacing:.06em;color:var(--text-3);font-weight:600;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-faint);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12px;color:var(--text-3);
}

/* ===== Responsive ===== */
@media (max-width:1200px){
  .hero-grid{grid-template-columns:1.3fr .7fr;gap:32px}
  .split{gap:40px}
}
@media (max-width:992px){
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:52px 0 56px}
  .hero-grid{grid-template-columns:1fr}
  .quick-panel{padding:6px 2px}
  .split{grid-template-columns:1fr;gap:32px}
  .grid-asym{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow-item:nth-child(2),.flow-item:nth-child(4){transform:none}
  .flow-item:nth-child(2):hover,.flow-item:nth-child(4):hover{transform:translateY(-4px)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .section.is-tight{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .site-footer{margin-top:64px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr}
  .footer-col p{max-width:none}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .hero h1{font-size:clamp(24px,7vw,30px)}
  .hero-lead{font-size:15px}
  .hero-actions .btn{width:100%}
  .card-body{padding:18px}
  .stat{padding:22px 18px}
  .faq-a-inner{padding-right:0}
  .footer-bottom{flex-direction:column}
}
@media (max-width:400px){
  .brand{font-size:15px}
  .brand-mark{width:24px;height:24px}
  .brand-mark::after{inset:8px}
  .chip-slant{font-size:11px;padding:4px 9px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg:#070B16;
  --bg-2:#0A1020;
  --card:#121A2C;
  --card-2:#1A2338;
  --line:#1E2A44;
  --line-soft:rgba(120,180,255,.14);
  --brand:#38E1D6;
  --brand-deep:#17B3A9;
  --orange:#FF7A3D;
  --purple:#6D5AE6;
  --text:#E6EDF7;
  --text-2:#9AA9C2;
  --text-3:#6B7A96;
  --ink:#061019;
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5C6C;
  --r-card:16px;
  --r-sm:12px;
  --r-input:10px;
  --r-btn:12px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 28px 56px -24px rgba(0,0,0,.9);
  --glow:0 0 0 1px rgba(56,225,214,.35), 0 12px 34px -12px rgba(56,225,214,.55);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out, border-color .18s ease-out, color .18s ease-out;
  background:none;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand) 0%,var(--purple) 100%);
  color:var(--ink);
  box-shadow:var(--glow);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(56,225,214,.5), 0 16px 40px -12px rgba(56,225,214,.7);
}
.btn-ghost{
  background:transparent;
  border-color:#2A3A5C;
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--brand);
}
.btn[disabled],.btn.is-disabled{
  opacity:.45;
  box-shadow:none;
  cursor:not-allowed;
  transform:none;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.text-link .arw{transition:transform .18s ease-out;}
.text-link:hover .arw{transform:translateX(3px);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.86);
  border-bottom-color:var(--line-soft);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-mark{
  width:28px;
  height:28px;
  flex:none;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--purple) 100%);
  box-shadow:0 0 18px -4px rgba(56,225,214,.8);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:4px;
  background:var(--bg);
  opacity:.85;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--brand);
  transition:width .18s ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{
  color:var(--brand);
  padding-left:12px;
}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(56,225,214,.9);
}
.nav-link.is-active::after{width:0;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--card);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;
  width:16px;
  height:1.5px;
  background:var(--text);
  margin:3px auto;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(4.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line-soft);
  background:rgba(7,11,22,.97);
  padding:8px 24px 24px;
}
.mobile-drawer a{
  display:block;
  padding:14px 0;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid rgba(120,180,255,.08);
  opacity:0;
  transform:translateY(-6px);
  transition:opacity .3s ease, transform .3s ease, color .18s ease;
}
.mobile-drawer a.is-active{color:var(--brand);}
.mobile-drawer.is-open a{opacity:1;transform:translateY(0);}
.mobile-drawer.is-open a:nth-child(1){transition-delay:.04s;}
.mobile-drawer.is-open a:nth-child(2){transition-delay:.08s;}
.mobile-drawer.is-open a:nth-child(3){transition-delay:.12s;}
.mobile-drawer.is-open a:nth-child(4){transition-delay:.16s;}
.mobile-drawer.is-open a:nth-child(5){transition-delay:.20s;}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 52px;
  background:var(--bg-2);
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  opacity:.22;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(7,11,22,.96) 0%,rgba(7,11,22,.78) 48%,rgba(7,11,22,.42) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#33415f;}
.breadcrumb .cur{color:var(--brand);}
.hero-grid{
  display:grid;
  grid-template-columns:1.35fr .9fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--brand);
  padding:6px 12px;
  border:1px solid rgba(56,225,214,.28);
  border-radius:8px;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  background:rgba(56,225,214,.06);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.page-hero .hero-sub{
  font-size:16px;
  color:var(--text-2);
  line-height:1.85;
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-meta{
  display:flex;
  gap:32px;
  margin-top:34px;
  flex-wrap:wrap;
}
.hero-meta .hm-num{
  font-family:var(--mono);
  font-size:24px;
  font-weight:600;
  color:var(--text);
}
.hero-meta .hm-label{
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.02em;
}
.hero-panel{
  border-radius:var(--r-card);
  border:1px solid var(--line-soft);
  background:rgba(18,26,44,.55);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.hero-panel-media{
  position:relative;
  aspect-ratio:16/10;
  background:linear-gradient(160deg,#121A2C 0%,#1A2338 100%);
}
.hero-panel-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-panel-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.45) 0%,rgba(7,11,22,.92) 100%);
}
.hero-panel-body{padding:22px 24px 26px;}
.hero-panel-body h2{
  font-size:17px;
  font-weight:600;
  margin-bottom:10px;
}
.hero-panel-body p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}
.panel-list{margin-top:18px;border-top:1px solid rgba(120,180,255,.10);padding-top:14px;}
.panel-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13.5px;
  color:var(--text-2);
  padding:7px 0;
}
.panel-list li span:last-child{
  font-family:var(--mono);
  color:var(--brand);
}

/* ---------- 板块基础 ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(23px,3vw,32px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head .sub{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
  max-width:620px;
}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}

/* ---------- 筛选 chip ---------- */
.chip-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:36px;
}
.chip{
  padding:9px 18px;
  border-radius:8px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  font-size:14px;
  cursor:pointer;
  transition:color .18s ease, border-color .18s ease, background-color .18s ease;
}
.chip:hover{color:var(--text);border-color:#2F4066;}
.chip.is-active{
  color:var(--brand);
  border-color:rgba(56,225,214,.55);
  background:rgba(56,225,214,.06);
}

/* ---------- 内容卡网格 ---------- */
.content-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
@media (min-width:1200px){
  .content-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
.content-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}
.content-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(56,225,214,.4);
}
.content-card.is-hidden{display:none;}
.card-thumb{
  position:relative;
  aspect-ratio:3/2;
  background:linear-gradient(150deg,#121A2C 0%,#1A2338 100%);
  overflow:hidden;
}
.card-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease-out;
}
.content-card:hover .card-thumb img{transform:scale(1.04);}
.card-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.08) 0%,rgba(7,11,22,.62) 100%);
}
.card-badge{
  position:absolute;
  top:12px;
  left:12px;
  z-index:2;
  font-size:12px;
  letter-spacing:.02em;
  padding:5px 11px;
  color:var(--ink);
  background:var(--brand);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  font-weight:600;
}
.card-badge.badge-orange{background:var(--orange);}
.card-badge.badge-purple{background:var(--purple);color:#F3F0FF;}
.card-no{
  position:absolute;
  right:14px;
  bottom:12px;
  z-index:2;
  font-family:var(--mono);
  font-size:13px;
  color:rgba(230,237,247,.7);
  letter-spacing:.06em;
}
.card-body{
  padding:20px 22px 14px;
  flex:1;
}
.card-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 22px 18px;
  border-top:1px solid rgba(120,180,255,.10);
  font-size:13px;
  color:var(--text-3);
}
.card-foot time{font-family:var(--mono);letter-spacing:.02em;}
.card-foot .arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:600;
  font-size:13.5px;
}
.card-foot .arrow-link .arw{transition:transform .18s ease-out;}
.content-card:hover .card-foot .arrow-link .arw{transform:translateX(3px);}
.empty-state{
  border:1px dashed rgba(120,180,255,.24);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
  color:var(--text-2);
}
.empty-state h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:10px;}
.empty-state p{font-size:14px;margin-bottom:20px;}

/* ---------- 更新节奏路线 ---------- */
.route-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--card);
}
.route-node{
  padding:28px 24px 30px;
  border-right:1px solid var(--line);
  position:relative;
  transition:background-color .2s ease;
}
.route-node:last-child{border-right:none;}
.route-node:hover{background:#162034;}
.route-node .node-idx{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:16px;
  display:block;
}
.route-node h3{font-size:16px;font-weight:600;margin-bottom:10px;}
.route-node p{font-size:13.5px;color:var(--text-2);line-height:1.7;}
.route-node::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:2px;
  background:transparent;
  transition:background-color .2s ease;
}
.route-node:hover::before{background:var(--brand);}
.progress-track{
  margin-top:28px;
  height:6px;
  border-radius:99px;
  background:#121A2C;
  border:1px solid var(--line);
  overflow:hidden;
}
.progress-fill{
  height:100%;
  width:68%;
  background:linear-gradient(90deg,var(--brand) 0%,var(--purple) 100%);
  border-radius:99px;
}
.progress-meta{
  display:flex;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-3);
  margin-top:12px;
  font-family:var(--mono);
}

/* ---------- 数据统计带 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat-cell{
  background:var(--card);
  padding:30px 24px;
}
.stat-cell .num{
  font-family:var(--mono);
  font-size:clamp(24px,3vw,32px);
  font-weight:600;
  color:var(--brand);
  letter-spacing:-.01em;
}
.stat-cell .label{
  font-size:13.5px;
  color:var(--text-2);
  margin-top:10px;
}
.stat-cell .note{
  font-size:12px;
  color:var(--text-3);
  margin-top:4px;
}

/* ---------- 会员专属预览 2+1 ---------- */
.preview-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:24px;
}
.preview-main,.preview-side-card{
  position:relative;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  overflow:hidden;
  background:var(--card);
  box-shadow:var(--shadow);
  transition:border-color .2s ease, transform .2s ease-out;
}
.preview-main:hover,.preview-side-card:hover{border-color:rgba(56,225,214,.4);transform:translateY(-4px);}
.preview-main{aspect-ratio:16/10;}
.preview-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.preview-side-card{aspect-ratio:auto;}
.preview-main img,.preview-side-card img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.preview-main::after,.preview-side-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,11,22,.18) 0%,rgba(7,11,22,.88) 100%);
}
.preview-content{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
  padding:24px 26px;
  width:100%;
}
.lock-badge{
  position:absolute;
  top:16px;
  left:16px;
  z-index:3;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  padding:5px 11px;
  color:var(--ink);
  background:var(--orange);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.preview-content h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.preview-side-card .preview-content h3{font-size:16px;}
.preview-content p{font-size:13.5px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-panel{
  border-radius:var(--r-card);
  border:1px solid var(--line-soft);
  background:rgba(18,26,44,.55);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
  padding:10px 26px;
}
.faq-item{border-bottom:1px solid rgba(120,180,255,.10);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:56px;
  padding:16px 0;
  background:none;
  border:none;
  text-align:left;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  color:var(--text);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:none;
  width:20px;
  height:20px;
  position:relative;
  transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
}
.faq-icon::before{top:9px;left:0;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease;
}
.faq-a-inner{
  padding:0 0 20px 14px;
  border-left:2px solid var(--brand);
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
  margin-left:2px;
}
.faq-side h2{
  font-size:clamp(23px,3vw,32px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.faq-side p{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:22px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  padding:44px 48px;
  border-radius:var(--r-card);
  border:1px solid var(--line-soft);
  background:rgba(18,26,44,.55);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-60%;
  left:-10%;
  width:60%;
  height:220%;
  background:linear-gradient(90deg,transparent,rgba(56,225,214,.12),transparent);
  transform:rotate(14deg);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(21px,2.6vw,28px);
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.cta-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
}
.cta-points span{
  font-size:14px;
  color:var(--text-2);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.cta-points span::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
  flex:none;
}
.pulse{animation:pulseGlow 3.2s ease-in-out infinite;}
@keyframes pulseGlow{
  0%,100%{box-shadow:0 0 0 1px rgba(56,225,214,.35), 0 12px 34px -14px rgba(56,225,214,.5);}
  50%{box-shadow:0 0 0 1px rgba(56,225,214,.55), 0 18px 44px -12px rgba(56,225,214,.8);}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line-soft);
  background:var(--bg-2);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-col h3{
  font-size:13px;
  letter-spacing:.04em;
  color:var(--text-3);
  font-weight:600;
  margin-bottom:18px;
}
.footer-col p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .18s ease;
}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(120,180,255,.10);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:12px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .content-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .route-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .route-node:nth-child(2){border-right:none;}
  .route-node:nth-child(1),.route-node:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:992px){
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer{display:block;max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .mobile-drawer.is-open{max-height:420px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:44px 0 40px;}
  .section{padding:80px 0;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .preview-grid{grid-template-columns:1fr;}
  .preview-main{aspect-ratio:16/10;}
  .preview-side{grid-template-rows:auto auto;grid-template-columns:1fr 1fr;}
  .preview-side-card{aspect-ratio:4/3;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:64px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .content-grid{grid-template-columns:1fr;}
  .route-grid{grid-template-columns:1fr;}
  .route-node{border-right:none;border-bottom:1px solid var(--line);}
  .route-node:last-child{border-bottom:none;}
  .stat-band{grid-template-columns:1fr 1fr;}
  .preview-side{grid-template-columns:1fr;}
  .preview-side-card{aspect-ratio:4/3;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .hero-meta{gap:22px;}
}
@media (max-width:560px){
  body{font-size:15px;}
  .page-hero h1{font-size:28px;}
  .hero-meta{gap:18px;}
  .hero-meta .hm-num{font-size:20px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .header-actions .btn-sm{display:none;}
  .section{padding:56px 0;}
  .card-body{padding:18px 18px 12px;}
  .card-foot{padding:12px 18px 16px;}
  .cta-band{padding:30px 22px;gap:24px;}
  .faq-panel{padding:6px 18px;}
}
@media (max-width:400px){
  .brand{font-size:14.5px;}
  .eyebrow{font-size:11px;padding:5px 10px;}
  .stat-band{grid-template-columns:1fr;}
  .stat-cell{padding:24px 20px;}
}

/* roulang page: category3 */
:root{
  --bg:#070B16;
  --bg-layer:#0A1020;
  --card:#121A2C;
  --card-hi:#1A2338;
  --line:#1E2A44;
  --line-soft:rgba(120,180,255,.14);
  --line-faint:rgba(120,180,255,.10);
  --primary:#38E1D6;
  --primary-deep:#17B3A9;
  --accent:#FF7A3D;
  --violet:#6D5AE6;
  --text:#E6EDF7;
  --text-2:#9AA9C2;
  --text-3:#6B7A96;
  --ink:#061019;
  --success:#3DD68C;
  --warn:#FFB020;
  --error:#FF5C6C;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 28px 56px -24px rgba(0,0,0,.9);
  --glow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -12px rgba(56,225,214,.55);
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{line-height:1.25;font-weight:700}
::selection{background:rgba(56,225,214,.28);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:560px){.container{padding:0 16px}}

/* ---------- 通用组件 ---------- */
.glass{
  background:rgba(18,26,44,.55);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line-soft);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  border-radius:var(--r-lg);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  font-size:12px;letter-spacing:.02em;line-height:1.4;
  color:var(--primary);
  background:rgba(56,225,214,.08);
  border:1px solid rgba(56,225,214,.30);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.badge-accent{color:#FFD9C2;background:rgba(255,122,61,.12);border-color:rgba(255,122,61,.42)}
.badge-muted{color:var(--text-2);background:rgba(120,180,255,.06);border-color:var(--line-soft)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-md);
  font-size:14px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out,filter .18s ease-out;
  white-space:nowrap;cursor:pointer;
}
.btn-primary{
  background:linear-gradient(135deg,#38E1D6,#6D5AE6);
  color:var(--ink);
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(56,225,214,.6),0 16px 40px -12px rgba(56,225,214,.7)}
.btn-ghost{background:transparent;border-color:#2A3A5C;color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:var(--r-sm)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);transition:color .18s ease-out}
.text-link .arrow{transition:transform .18s ease-out;font-family:var(--mono)}
.text-link:hover .arrow{transform:translateX(3px)}
.text-link:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.section{padding:96px 0}
@media (max-width:992px){.section{padding:76px 0}}
@media (max-width:768px){.section{padding:60px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .eyebrow{display:block;font-size:12px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-size:clamp(23px,3vw,34px);letter-spacing:-.01em}
.section-head p{margin-top:12px;max-width:620px;color:var(--text-2);font-size:15px}
@media (max-width:768px){.section-head{flex-direction:column;align-items:flex-start;gap:16px}}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.86);
  border-bottom-color:var(--line-soft);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text)}
.brand-mark{
  width:28px;height:28px;flex:none;
  background:linear-gradient(135deg,#38E1D6,#6D5AE6);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  box-shadow:0 0 18px rgba(56,225,214,.45);
}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;padding:6px 2px;font-size:14px;color:var(--text-2);transition:color .18s ease-out}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active::before{
  content:"";position:absolute;left:-10px;top:50%;width:5px;height:5px;margin-top:-2.5px;
  border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color .18s ease-out;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--text-2);transition:transform .2s ease,opacity .2s ease}
.nav-toggle:hover{border-color:var(--primary)}
.nav-toggle.is-open span:first-child{transform:translateY(3.25px) rotate(45deg);background:var(--primary)}
.nav-toggle.is-open span:last-child{transform:translateY(-3.25px) rotate(-45deg);background:var(--primary)}
.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:rgba(7,11,22,.97);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:20px 24px 40px;
  display:flex;flex-direction:column;
  opacity:0;transform:translateY(-8px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
  border-top:1px solid var(--line-soft);
}
.mobile-drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 2px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line-faint);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.mobile-drawer a:hover,.mobile-drawer a.is-active{color:var(--primary);padding-left:8px}
.mobile-drawer a.is-active::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary)}
.mobile-drawer.is-open a{animation:drawerIn .34s ease-out both}
.mobile-drawer.is-open a:nth-child(1){animation-delay:.02s}
.mobile-drawer.is-open a:nth-child(2){animation-delay:.06s}
.mobile-drawer.is-open a:nth-child(3){animation-delay:.10s}
.mobile-drawer.is-open a:nth-child(4){animation-delay:.14s}
.mobile-drawer.is-open a:nth-child(5){animation-delay:.18s}
@keyframes drawerIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media (max-width:992px){
  .nav-menu{display:none}
  .nav-toggle{display:flex}
}
@media (min-width:993px){.mobile-drawer{display:none}}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:44px 0 60px;border-bottom:1px solid var(--line-soft)}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,22,.78),rgba(7,11,22,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.85;pointer-events:none;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 78% 18%,rgba(56,225,214,.16),transparent 45%),
    radial-gradient(circle at 12% 82%,rgba(109,90,230,.16),transparent 50%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--primary)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-copy h1{font-size:clamp(29px,4.3vw,48px);line-height:1.16;letter-spacing:-.02em;margin:18px 0 0}
.hero-sub{margin-top:18px;font-size:16px;color:var(--text-2);max-width:560px;line-height:1.8}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-card{
  position:relative;overflow:hidden;padding:26px;border-radius:var(--r-lg);
  background-image:linear-gradient(180deg,rgba(7,11,22,.45),rgba(7,11,22,.92)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(56,225,214,.06) 0 1px,transparent 1px 7px);
  opacity:.55;
}
.hero-card-inner{position:relative;z-index:1}
.hero-card h2{font-size:15px;color:var(--text);letter-spacing:.01em}
.hero-card p.card-note{margin-top:8px;font-size:13px;color:var(--text-2)}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:22px}
.stat{border-left:2px solid rgba(56,225,214,.5);padding-left:12px}
.stat .stat-num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--primary);line-height:1.2}
.stat .stat-label{font-size:12px;color:var(--text-3);letter-spacing:.02em;margin-top:4px}
@media (max-width:992px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-sub{max-width:none}
}
@media (max-width:560px){
  .page-hero{padding:32px 0 44px}
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
}

/* ---------- 权益对比表 ---------- */
.compare-panel{padding:8px}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 22px 6px;flex-wrap:wrap}
.compare-head h2{font-size:clamp(20px,2.4vw,26px)}
.compare-head p{font-size:13px;color:var(--text-3);margin-top:8px}
.table-scroll{overflow-x:auto;border-radius:var(--r-md);border:1px solid var(--line-soft);margin:18px 0 20px;scrollbar-width:thin}
.table-scroll::-webkit-scrollbar{height:8px}
.table-scroll::-webkit-scrollbar-thumb{background:rgba(120,180,255,.2);border-radius:8px}
table.compare{width:100%;border-collapse:collapse;font-size:14px;min-width:680px}
.compare thead th{
  height:56px;padding:0 20px;text-align:left;
  background:#0F1728;color:var(--text-2);font-size:13px;font-weight:600;letter-spacing:.02em;
  border-bottom:1px solid var(--line-soft);
  position:sticky;top:0;z-index:2;
}
.compare tbody td{padding:16px 20px;border-bottom:1px solid var(--line-faint);color:var(--text-2);vertical-align:middle}
.compare tbody tr:last-child td{border-bottom:0}
.compare tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.compare tbody td:first-child{color:var(--text);font-weight:600}
.compare .col-recommend{background:rgba(56,225,214,.05);box-shadow:inset 1px 0 0 rgba(56,225,214,.42),inset -1px 0 0 rgba(56,225,214,.42)}
.compare thead .col-recommend{position:sticky;top:0}
.compare thead .col-recommend .head-flex{display:flex;align-items:center;gap:8px}
.muted{color:var(--text-3)}
.ok{color:var(--success)}

.compare-cards{display:none}
@media (max-width:768px){
  .table-scroll{display:none}
  .compare-cards{display:grid;gap:18px;margin:18px 0 20px}
}

/* ---------- 等级卡 ---------- */
.tier-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.tier-side{display:grid;gap:24px;align-content:start}
.tier-card{
  position:relative;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--card);
  padding:26px;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.tier-card:hover{transform:translateY(-4px);border-color:rgba(56,225,214,.5);box-shadow:var(--shadow-hover);background:var(--card-hi)}
.tier-card.is-feature{
  background:rgba(18,26,44,.55);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(56,225,214,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
}
.tier-cover{
  position:relative;border-radius:var(--r-md);overflow:hidden;margin-bottom:22px;
  aspect-ratio:16 / 9;
  background:linear-gradient(135deg,#121A2C,#1A2338);
}
.tier-cover img{width:100%;height:100%;object-fit:cover}
.tier-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,22,.1),rgba(7,11,22,.75))}
.tier-cover .badge{position:absolute;top:14px;left:14px;z-index:2}
.tier-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.tier-num{font-family:var(--mono);font-size:32px;font-weight:700;color:rgba(56,225,214,.32);line-height:1}
.tier-card h3{font-size:20px;margin-top:14px}
.tier-card .tier-desc{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8}
.tier-points{margin-top:20px;border-top:1px solid var(--line-faint)}
.tier-points li{
  display:flex;gap:10px;align-items:flex-start;
  padding:12px 0;font-size:14px;color:var(--text-2);
  border-bottom:1px solid var(--line-faint);
}
.tier-points li:last-child{border-bottom:0}
.tier-points .dot{width:6px;height:6px;flex:none;margin-top:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(56,225,214,.8)}
.tier-points .dot.grey{background:var(--text-3);box-shadow:none}
.tier-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-faint);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (max-width:992px){
  .tier-grid{grid-template-columns:1fr}
}

/* ---------- 成长路径 ---------- */
.path-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--line-soft)}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);box-shadow:0 0 12px rgba(56,225,214,.55);
}
.tl-step{font-family:var(--mono);font-size:12px;color:var(--text-3);letter-spacing:.08em}
.tl-item h3{font-size:17px;margin-top:6px}
.tl-item p{font-size:14px;color:var(--text-2);margin-top:8px}
.data-band{
  display:grid;grid-template-columns:1fr 1fr;gap:1px;
  border:1px solid var(--line-soft);border-radius:var(--r-lg);overflow:hidden;
  background:var(--line-faint);
}
.data-cell{background:var(--bg-layer);padding:26px 22px}
.data-cell .data-num{font-family:var(--mono);font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--primary);line-height:1.1}
.data-cell .data-label{margin-top:10px;font-size:13px;color:var(--text-2)}
.data-cell .data-note{margin-top:4px;font-size:12px;color:var(--text-3)}
@media (max-width:992px){
  .path-wrap{grid-template-columns:1fr;gap:36px}
}
@media (max-width:560px){
  .data-band{grid-template-columns:1fr}
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-intro h2{font-size:clamp(23px,3vw,32px);letter-spacing:-.01em}
.faq-intro p{margin-top:14px;font-size:15px;color:var(--text-2)}
.faq-panel{padding:10px 26px}
.faq-item{border-bottom:1px solid var(--line-faint);border-left:2px solid transparent;padding-left:14px;transition:border-color .24s ease}
.faq-item:last-child{border-bottom:0}
.faq-item.is-open{border-left-color:var(--primary)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:12px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--primary)}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.faq-plus{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform .24s ease;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);
}
.faq-plus::before{width:12px;height:1.5px;transform:translate(-50%,-50%)}
.faq-plus::after{width:1.5px;height:12px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 0 20px;font-size:15px;color:var(--text-2);line-height:1.85;max-width:760px}
@media (max-width:992px){
  .faq-grid{grid-template-columns:1fr;gap:24px}
  .faq-panel{padding:6px 18px}
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:-60% -20%;pointer-events:none;
  background:linear-gradient(115deg,transparent 36%,rgba(56,225,214,.12) 50%,transparent 64%);
  animation:sheen 7s linear infinite;
}
.cta-copy{position:relative;z-index:1;max-width:660px}
.cta-copy h2{font-size:clamp(21px,2.6vw,28px);letter-spacing:-.01em}
.cta-copy p{margin-top:12px;font-size:14px;color:var(--text-2)}
.cta-points{display:flex;gap:22px;margin-top:18px;flex-wrap:wrap}
.cta-points span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.cta-points span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(56,225,214,.7)}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{animation:breathe 4.5s ease-in-out infinite}
@keyframes sheen{0%{transform:translateX(-18%)}100%{transform:translateX(18%)}}
@keyframes breathe{0%,100%{box-shadow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -14px rgba(56,225,214,.45)}50%{box-shadow:0 0 0 1px rgba(56,225,214,.6),0 18px 44px -12px rgba(56,225,214,.75)}}
@media (max-width:860px){
  .cta-band{padding:30px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;border-top:1px solid var(--line-soft);background:var(--bg-layer);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-col h3{font-size:13px;letter-spacing:.04em;color:var(--text-3);font-weight:600;margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.85}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .18s ease-out,padding-left .18s ease-out}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-faint);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);letter-spacing:.02em;
}
@media (max-width:992px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:768px){
  .site-footer{margin-top:64px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
}

/* roulang page: category4 */
:root{
  --bg:#070B16;
  --bg-2:#0A1020;
  --card:#121A2C;
  --card-hi:#1A2338;
  --line:#1E2A44;
  --line-soft:rgba(120,180,255,.14);
  --primary:#38E1D6;
  --primary-deep:#17B3A9;
  --accent:#FF7A3D;
  --violet:#6D5AE6;
  --text:#E6EDF7;
  --text-2:#9AA9C2;
  --text-3:#6B7A96;
  --ok:#3DD68C;
  --warn:#FFB020;
  --err:#FF5C6C;
  --glass:rgba(18,26,44,.55);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 28px 56px -24px rgba(0,0,0,.9);
  --shadow-glow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -12px rgba(56,225,214,.55);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(56,225,214,.10),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(109,90,230,.12),transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(56,225,214,.28)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
@media (min-width:1440px){.container{max-width:1280px}}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.section{padding:104px 0}
.section--tight{padding:72px 0}
.divider{height:1px;background:var(--line-soft);border:0;margin:0}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(7,11,22,.86);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line-soft);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--text);white-space:nowrap}
.brand:hover{color:var(--text)}
.brand-mark{
  width:28px;height:28px;
  flex:0 0 28px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 18px -4px rgba(56,225,214,.7);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;inset:7px;
  border:1px solid rgba(6,16,25,.75);
  border-radius:3px;
  clip-path:polygon(0 0,100% 0,100% 55%,55% 100%,0 100%);
}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--primary);
  transition:width 180ms ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{width:100%}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:-11px;top:50%;
  width:5px;height:5px;
  margin-top:-2.5px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(56,225,214,.9);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--text-2);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-md);
  font-size:14px;
  font-weight:600;
  line-height:1;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease),opacity var(--ease);
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--violet));
  color:#061019;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{color:#061019;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(56,225,214,.5),0 18px 40px -12px rgba(56,225,214,.7)}
.btn-ghost{
  background:transparent;
  border-color:#2A3A5C;
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:var(--radius-sm)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--primary);font-weight:600;
  padding:4px 0;
}
.btn-text .arrow{transition:transform var(--ease)}
.btn-text:hover .arrow{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  letter-spacing:.02em;
  padding:5px 11px;
  color:var(--primary);
  background:rgba(56,225,214,.10);
  border:1px solid rgba(56,225,214,.28);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.badge--accent{color:var(--accent);background:rgba(255,122,61,.12);border-color:rgba(255,122,61,.32)}
.badge--violet{color:#B9AEFF;background:rgba(109,90,230,.16);border-color:rgba(109,90,230,.36)}
.badge--muted{color:var(--text-2);background:rgba(154,169,194,.08);border-color:var(--line-soft)}
.chip{
  display:inline-flex;align-items:center;
  font-size:13px;
  padding:7px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  color:var(--text-2);
  background:transparent;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.chip:hover,.chip.is-active{border-color:rgba(56,225,214,.5);color:var(--primary);background:rgba(56,225,214,.06)}

/* ============ 章节标题 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:clamp(23px,3vw,34px);line-height:1.25;letter-spacing:-.01em;font-weight:700}
.section-head .lead{margin-top:12px;color:var(--text-2);font-size:15px;max-width:560px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:var(--text-3);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--primary)}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:56px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(7,11,22,.62),rgba(7,11,22,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.9;
  z-index:0;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,180,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{color:#33415E}
.breadcrumb .current{color:var(--primary)}
.hero h1{
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.15;
  letter-spacing:-.02em;
  font-weight:700;
  max-width:16em;
}
.hero-sub{margin-top:18px;color:var(--text-2);font-size:16px;max-width:640px}
.hero-search{margin-top:32px;max-width:640px}
.search-box{
  display:flex;align-items:center;gap:12px;
  height:52px;
  padding:0 16px;
  border-radius:var(--radius-md);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line-soft);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box:focus-within{
  border-color:rgba(56,225,214,.6);
  box-shadow:0 0 0 3px rgba(56,225,214,.14),0 12px 32px -18px rgba(56,225,214,.6);
}
.search-box svg{flex:0 0 18px;opacity:.75}
.search-box input{
  flex:1;
  height:100%;
  background:transparent;
  border:0;
  outline:none;
  font-size:14px;
}
.search-box input::placeholder{color:var(--text-3)}
.hero-search .hint{margin-top:12px;font-size:12px;color:var(--text-3);letter-spacing:.02em}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  margin-top:44px;
  border-top:1px solid var(--line-soft);
  padding-top:26px;
  max-width:720px;
}
.stat b{display:block;font-family:var(--mono);font-size:26px;font-weight:600;color:var(--text)}
.stat span{display:block;margin-top:6px;font-size:12px;color:var(--text-3);letter-spacing:.02em}

/* ============ 入口卡（路径） ============ */
.path-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px}
.path-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  overflow:hidden;
}
.path-card:hover{transform:translateY(-4px);border-color:rgba(56,225,214,.4);box-shadow:var(--shadow-hover)}
.path-card .idx{
  font-family:var(--mono);
  font-size:13px;
  color:var(--primary);
  letter-spacing:.08em;
}
.path-card h3{margin-top:14px;font-size:19px;font-weight:600}
.path-card p{margin-top:10px;color:var(--text-2);font-size:14px;line-height:1.75}
.path-card ul{margin-top:18px;border-top:1px solid var(--line-soft);padding-top:14px;display:grid;gap:8px}
.path-card li{font-size:13px;color:var(--text-3);display:flex;gap:8px;align-items:flex-start}
.path-card li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);margin-top:8px;flex:0 0 5px}
.path-card--feature{background:linear-gradient(160deg,#121A2C 0%,#151F35 60%,#121A2C 100%)}
.path-card--feature::after{
  content:"";
  position:absolute;right:-40px;top:-40px;
  width:180px;height:180px;
  background:radial-gradient(circle,rgba(56,225,214,.18),transparent 68%);
}

/* ============ 帮助主区（锚点 + 手风琴） ============ */
.help-layout{display:grid;grid-template-columns:260px 1fr;gap:48px;align-items:start}
.anchor-panel{
  position:sticky;
  top:96px;
  border-left:1px solid var(--line-soft);
  padding-left:20px;
}
.anchor-title{font-size:12px;letter-spacing:.06em;color:var(--text-3);margin-bottom:16px}
.anchor-list{display:grid;gap:2px}
.anchor-link{
  display:block;
  position:relative;
  padding:10px 0;
  font-size:14px;
  color:var(--text-2);
  border-bottom:1px solid rgba(120,180,255,.08);
}
.anchor-link:last-child{border-bottom:0}
.anchor-link::before{
  content:"";
  position:absolute;
  left:-21px;top:50%;
  width:2px;height:0;
  background:var(--primary);
  transform:translateY(-50%);
  transition:height var(--ease);
}
.anchor-link:hover{color:var(--text)}
.anchor-link.is-active{color:var(--primary)}
.anchor-link.is-active::before{height:22px}
.anchor-note{margin-top:22px;font-size:12px;color:var(--text-3);line-height:1.8}

.qa-group{margin-bottom:52px}
.qa-group:last-child{margin-bottom:0}
.qa-group-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.qa-group-head h2{font-size:21px;font-weight:600;letter-spacing:-.01em}
.qa-group-head .count{font-family:var(--mono);font-size:12px;color:var(--text-3)}
.qa-list{border-top:1px solid rgba(120,180,255,.10)}
.qa-item{border-bottom:1px solid rgba(120,180,255,.10)}
.qa-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;
  padding:18px 0 18px 0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  transition:color var(--ease);
}
.qa-q:hover{color:var(--primary)}
.qa-icon{
  position:relative;
  width:16px;height:16px;flex:0 0 16px;
  transition:transform 240ms ease;
}
.qa-icon::before,.qa-icon::after{
  content:"";position:absolute;background:var(--primary);
}
.qa-icon::before{left:0;top:7.25px;width:16px;height:1.5px}
.qa-icon::after{top:0;left:7.25px;height:16px;width:1.5px}
.qa-item.is-open .qa-icon{transform:rotate(45deg)}
.qa-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows 240ms ease;
}
.qa-item.is-open .qa-a{grid-template-rows:1fr}
.qa-a-inner{overflow:hidden}
.qa-a-body{
  padding:0 0 22px 0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
  border-left:2px solid var(--primary);
  padding-left:16px;
  margin-left:1px;
}
.qa-a-body p + p{margin-top:10px}
.qa-item.is-open .qa-q{color:var(--primary)}
.qa-item.is-hidden{display:none}
.qa-group.is-hidden{display:none}
.empty-hint{
  display:none;
  text-align:center;
  border:1px dashed var(--line);
  border-radius:var(--radius-lg);
  padding:48px 24px;
  color:var(--text-3);
}
.empty-hint.is-visible{display:block}
.empty-hint b{display:block;color:var(--text);font-size:16px;font-weight:600;margin-bottom:8px}

/* ============ 数据带 ============ */
.metrics{
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  background:var(--bg-2);
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px}
.metric{padding:34px 24px}
.metric + .metric{border-left:1px solid var(--line-soft)}
.metric b{display:block;font-family:var(--mono);font-size:clamp(24px,2.6vw,32px);font-weight:600}
.metric b em{font-style:normal;font-size:15px;color:var(--text-2);margin-left:4px}
.metric span{display:block;margin-top:8px;font-size:13px;color:var(--text-3)}
.metric p{margin-top:10px;font-size:13px;color:var(--text-2);line-height:1.7}

/* ============ 自助清单 ============ */
.check-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.check-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(160deg,#121A2C,#0A1020);
  box-shadow:var(--shadow-card);
}
.check-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;opacity:.72}
.check-visual .cap{
  position:absolute;left:20px;bottom:18px;
  font-size:12px;color:var(--text-2);
  background:rgba(7,11,22,.72);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-sm);
  padding:7px 12px;
  backdrop-filter:blur(10px);
}
.check-list{display:grid;gap:18px}
.check-item{
  display:grid;
  grid-template-columns:34px 1fr;
  gap:16px;
  padding:18px 20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  transition:border-color var(--ease),transform var(--ease);
}
.check-item:hover{border-color:rgba(56,225,214,.4);transform:translateY(-2px)}
.check-item .num{
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;
  color:var(--primary);
  border:1px solid rgba(56,225,214,.32);
  background:rgba(56,225,214,.08);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.check-item h3{font-size:16px;font-weight:600}
.check-item p{margin-top:6px;font-size:14px;color:var(--text-2);line-height:1.75}

/* ============ 相关入口 ============ */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.link-card{
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:20px;
  padding:24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.link-card:hover{transform:translateY(-4px);border-color:rgba(56,225,214,.4);box-shadow:var(--shadow-hover)}
.link-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.link-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.link-card .foot{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line-soft);
  padding-top:14px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-60%;left:-10%;
  width:60%;height:220%;
  background:linear-gradient(90deg,transparent,rgba(56,225,214,.12),transparent);
  transform:rotate(18deg);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:560px}
.cta-points{display:flex;gap:20px;flex-wrap:wrap;margin-top:18px}
.cta-points span{font-size:13px;color:var(--text-2);display:flex;align-items:center;gap:8px}
.cta-points span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary)}
.cta-actions{position:relative;z-index:1;flex:0 0 auto;display:flex;gap:12px;flex-wrap:wrap}
.pulse{animation:pulseGlow 3.4s ease-in-out infinite}
@keyframes pulseGlow{
  0%,100%{box-shadow:0 0 0 1px rgba(56,225,214,.35),0 12px 34px -12px rgba(56,225,214,.5)}
  50%{box-shadow:0 0 0 1px rgba(56,225,214,.5),0 16px 42px -10px rgba(56,225,214,.75)}
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line-soft);
  background:var(--bg-2);
  padding-top:64px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-brand .brand-mark{width:24px;height:24px;flex:0 0 24px;border-radius:8px}
.footer-col p{color:var(--text-2);font-size:14px;line-height:1.8}
.footer-col h3{font-size:13px;letter-spacing:.04em;color:var(--text-3);font-weight:600;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--line-soft);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.02em;
}

/* ============ 移动端抽屉 ============ */
.mobile-drawer{
  position:fixed;
  inset:72px 0 0 0;
  background:rgba(7,11,22,.97);
  backdrop-filter:blur(16px);
  z-index:55;
  padding:28px 24px;
  display:none;
  flex-direction:column;
  gap:4px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer a{
  font-size:17px;
  padding:16px 4px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
  opacity:0;
  transform:translateY(8px);
  animation:drawerIn 320ms ease forwards;
}
.mobile-drawer a.is-active{color:var(--primary)}
@keyframes drawerIn{to{opacity:1;transform:none}}
.mobile-drawer .drawer-cta{margin-top:24px}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .path-grid{grid-template-columns:1fr 1fr}
  .path-card--feature{grid-column:1 / -1}
  .help-layout{grid-template-columns:220px 1fr;gap:32px}
}
@media (max-width:992px){
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-ghost{display:none}
  .section{padding:80px 0}
  .path-grid{grid-template-columns:1fr}
  .help-layout{grid-template-columns:1fr;gap:28px}
  .anchor-panel{position:static;border-left:0;padding-left:0;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);padding:20px 0}
  .anchor-list{grid-template-columns:repeat(2,1fr);gap:0 20px}
  .anchor-link{border-bottom:1px solid rgba(120,180,255,.08)}
  .anchor-link::before{display:none}
  .anchor-link.is-active{background:rgba(56,225,214,.06);border-radius:8px;padding-left:10px}
  .check-grid{grid-template-columns:1fr;gap:28px}
  .link-cards{grid-template-columns:1fr 1fr}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric + .metric{border-left:0}
  .metric{border-top:1px solid var(--line-soft)}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0}
  .metric:nth-child(even){border-left:1px solid var(--line-soft)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  .hero{padding:36px 0 48px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px}
  .hero-stats{grid-template-columns:1fr;gap:20px}
  .hero-stats .stat + .stat{border-top:1px solid var(--line-soft);padding-top:16px}
  .link-cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .qa-q{font-size:15px;gap:14px}
}
@media (max-width:560px){
  body{font-size:15px}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .btn{width:100%}
  .btn-sm{width:auto}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .metrics-grid{grid-template-columns:1fr}
  .metric{border-left:0 !important}
  .metric + .metric{border-top:1px solid var(--line-soft)}
  .cta-band{padding:26px}
  .search-box{height:48px}
  .anchor-list{grid-template-columns:1fr}
}
@media (max-width:400px){
  .hero h1{font-size:25px}
  .brand-text{font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .pulse{animation:none}
}