/* roulang page: index */
:root{
  --brand:#1B4FBF;
  --brand-dark:#173FA0;
  --brand-soft:#EAF1FE;
  --brand-line:#C6D8F7;
  --accent:#FF7A29;
  --accent-dark:#EE6A18;
  --gold:#C9A15A;
  --level-base:#8A99AD;
  --ink:#101B2D;
  --ink-2:#35435A;
  --muted:#66768F;
  --line:#E3E9F2;
  --line-soft:#EDF2F9;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --deep:#0F2E6B;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,27,45,.06),0 8px 24px rgba(27,79,191,.08);
  --shadow-2:0 2px 4px rgba(16,27,45,.08),0 14px 32px rgba(27,79,191,.14);
  --gap:28px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{list-style:none;padding:0}
.container{
  width:100%;
  max-width:1220px;
  margin:0 auto;
  padding:0 20px;
}
.section{padding:84px 0}
.section-sm{padding:56px 0}
.section-head{margin-bottom:38px;max-width:760px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
h1{font-size:clamp(28px,4vw,44px);line-height:1.32;font-weight:700;letter-spacing:-.01em}
h2{font-size:28px;line-height:1.42;font-weight:700;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.5;font-weight:600}
.lead{color:var(--ink-2);font-size:16px}
.muted{color:var(--muted)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15.5px;
  font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,41,.28)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,41,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,122,41,.26)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn-ghost{background:rgba(255,255,255,.9);color:var(--brand);border-color:var(--brand-line)}
.btn-ghost:hover{background:#fff;color:var(--brand-dark);border-color:var(--brand)}
.btn-light{background:#fff;color:var(--deep);border-color:transparent}
.btn-light:hover{background:var(--brand-soft);color:var(--deep);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:54px;padding:0 32px;font-size:16.5px}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:6px 12px;
  border-radius:999px;
  white-space:nowrap;
}
.badge-blue{background:var(--brand-soft);color:var(--brand)}
.badge-orange{background:#FFF1E6;color:#C9550C}
.badge-gold{background:#FBF3E2;color:#8A6520}
.badge-gray{background:#EFF2F7;color:var(--ink-2)}
.badge-line{background:#fff;color:var(--brand);border:1px solid var(--brand-line)}
.badge-dark{background:rgba(255,255,255,.16);color:#fff}

/* ---------- topbar ---------- */
.topbar{
  background:var(--deep);
  color:#fff;
  font-size:13px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:38px;
  flex-wrap:wrap;
}
.topbar-tag{
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 10px;
  border-radius:999px;
}
.topbar-text{color:rgba(255,255,255,.78)}
.countdown{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  font-weight:600;
  letter-spacing:.04em;
}
.cd-num{
  display:inline-block;
  min-width:30px;
  text-align:center;
  background:rgba(255,255,255,.14);
  border-radius:6px;
  padding:3px 6px;
  color:#fff;
}
.countdown i{font-style:normal;color:rgba(255,255,255,.55)}
.topbar-link{
  margin-left:auto;
  color:#fff;
  font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.4);
  padding-bottom:1px;
}
.topbar-link:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- nav ---------- */
.site-header{position:sticky;top:0;z-index:60}
.mainnav{
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 10px rgba(16,27,45,.04);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(27,79,191,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.14em}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0;
  flex:1 1 auto;
}
.nav-links a{
  display:block;
  position:relative;
  padding:24px 14px;
  font-size:15px;
  color:var(--ink-2);
  font-weight:500;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:16px;
  height:2px;border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  color:var(--ink);
  font-size:17px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand-line);color:var(--brand)}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(16,27,45,.3);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(84vw,340px);
  background:#fff;
  z-index:90;
  transform:translateX(105%);
  transition:transform .28s cubic-bezier(.4,0,.2,1);
  padding:22px 22px 30px;
  overflow-y:auto;
  box-shadow:-12px 0 40px rgba(16,27,45,.16);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  font-size:16px;color:var(--ink);cursor:pointer;
}
.drawer-list li{border-bottom:1px solid var(--line-soft)}
.drawer-list a{display:block;padding:14px 2px;font-size:15.5px;color:var(--ink-2);font-weight:500}
.drawer-list a.active{color:var(--brand);font-weight:600}
.drawer-cta{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background:
    radial-gradient(1000px 420px at 88% -6%,rgba(27,79,191,.10),transparent 62%),
    linear-gradient(180deg,#FFFFFF 0%,#F6F8FC 100%);
  overflow:hidden;
  padding:70px 0 78px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  opacity:.07;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-copy h1{margin-bottom:18px}
.hero-sub{
  font-size:17px;
  color:var(--ink-2);
  max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{position:relative;margin-top:12px}
.hero-visual>img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:16px;
  box-shadow:var(--shadow-2);
}
.hero-float{
  position:absolute;
  right:-6px;bottom:-22px;
  width:250px;
  background:#fff;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  padding:18px 18px 16px;
}
.float-head{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  margin-bottom:14px;
  font-weight:600;
}
.float-row{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--ink-2);
  margin-bottom:7px;
}
.float-row b{
  font-variant-numeric:tabular-nums;
  color:var(--ink);
  font-weight:700;
}
.bar{height:7px;border-radius:999px;background:#EEF2F9;overflow:hidden;margin-bottom:14px}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),#4C7BE0)}
.bar-92{width:92%}
.bar-64{width:64%}

/* ---------- stat strip ---------- */
.stat-strip{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft)}
.stat-item{background:#fff;padding:26px 22px;text-align:center}
.stat-item b{
  display:block;
  font-size:28px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat-item span{font-size:13.5px;color:var(--muted)}

/* ---------- table ---------- */
.table-scroll{
  overflow-x:auto;
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  border:1px solid var(--line);
  background:#fff;
  -webkit-overflow-scrolling:touch;
}
table.compare{
  width:100%;
  min-width:760px;
  border-collapse:separate;
  border-spacing:0;
  background:#fff;
  margin:0;
}
table.compare th,table.compare td{
  padding:16px 18px;
  text-align:center;
  font-size:14.5px;
  border-bottom:1px solid var(--line-soft);
  vertical-align:middle;
}
table.compare thead th{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding-top:20px;
  padding-bottom:20px;
}
table.compare tbody tr:nth-child(even) td{background:#FBFCFE}
table.compare td:first-child,table.compare th:first-child{
  text-align:left;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  position:sticky;
  left:0;
  z-index:2;
  min-width:170px;
  border-right:1px solid var(--line-soft);
}
table.compare tbody tr:nth-child(even) td:first-child{background:#FBFCFE}
th.col-rec,td.col-rec{
  background:var(--brand-soft) !important;
  border-left:1px solid var(--brand-line);
  border-right:1px solid var(--brand-line);
}
th.col-rec{position:relative}
th.col-rec .rec-flag{
  position:absolute;
  top:-1px;left:50%;
  transform:translateX(-50%);
  background:var(--accent);
  color:#fff;
  font-size:11.5px;
  font-weight:600;
  padding:3px 12px;
  border-radius:0 0 8px 8px;
}
.level-name{display:block;font-size:15.5px;font-weight:700;color:var(--ink)}
.level-name.gold{color:#8A6520}
.level-sub{display:block;font-size:12.5px;color:var(--muted);margin-top:3px}
.mark-yes{color:#1B8A5A;font-size:16px}
.mark-no{color:#B7C1D0;font-size:16px}
.mark-num{font-variant-numeric:tabular-nums;font-weight:600;color:var(--ink)}
.legend{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px;font-size:13px;color:var(--muted)}

/* ---------- level cards ---------- */
.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);align-items:start}
.level-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:30px 26px 26px;
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.level-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:4px;
}
.level-card.base::before{background:var(--level-base)}
.level-card.pro::before{background:var(--brand)}
.level-card.gold::before{background:var(--gold)}
.level-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-line)}
.level-card.pro{margin-top:-14px;padding-top:40px;border-color:var(--brand-line)}
.level-badge{
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;color:#fff;
  margin-bottom:16px;
}
.level-card.base .level-badge{background:var(--level-base)}
.level-card.pro .level-badge{background:var(--brand)}
.level-card.gold .level-badge{background:var(--gold)}
.level-card h3{margin-bottom:6px}
.level-card .lvl-desc{font-size:14px;color:var(--muted);margin-bottom:18px;min-height:44px}
.lvl-count{
  display:flex;align-items:baseline;gap:6px;
  font-size:13px;color:var(--muted);
  padding-bottom:16px;border-bottom:1px dashed var(--line);
  margin-bottom:16px;
}
.lvl-count b{font-size:26px;color:var(--ink);font-variant-numeric:tabular-nums;font-weight:700}
.lvl-list li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  color:var(--ink-2);
  margin-bottom:10px;
}
.lvl-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;left:0;top:2px;
  font-size:12px;color:var(--brand);
}
.level-card.base .lvl-list li::before{color:var(--level-base)}
.level-card.gold .lvl-list li::before{color:var(--gold)}
.lvl-tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 20px}

/* ---------- news ---------- */
.news-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.news-grid{margin-top:6px}
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  margin-bottom:var(--gap);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-line)}
.news-thumb{display:block;overflow:hidden}
.news-thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .35s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body .tag{
  align-self:flex-start;
  font-size:12px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 11px;border-radius:999px;
  margin-bottom:12px;
}
.news-body h3{font-size:17.5px;margin-bottom:10px}
.news-body h3 a{
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{
  font-size:14.5px;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
  flex:1 1 auto;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
  padding-top:14px;border-top:1px solid var(--line-soft);
}
.news-meta a{font-weight:600}
.empty-state{
  text-align:center;
  padding:64px 24px;
  border:1px dashed var(--brand-line);
  border-radius:var(--radius-card);
  background:#FBFCFE;
}
.empty-state i{font-size:30px;color:var(--brand-line);margin-bottom:14px;display:block}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:16px}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--deep);
  color:#fff;
  padding:70px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,41,.22),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:center}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:560px}
.cta-points{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.cta-point{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;
  padding:8px 16px;
}
.cta-point i{color:var(--accent)}
.cta-action{display:flex;flex-direction:column;gap:12px}
.cta-note{font-size:13px;color:rgba(255,255,255,.6);text-align:center}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion{background:transparent;margin:0;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1)}
.accordion-item{background:#fff;border-bottom:1px solid var(--line-soft)}
.accordion-item:last-child{border-bottom:0}
.accordion-title{
  display:block;
  position:relative;
  padding:19px 56px 19px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
}
.accordion-title::after{
  content:"+";
  position:absolute;
  right:22px;top:50%;
  transform:translateY(-50%);
  font-size:20px;
  font-weight:400;
  color:var(--brand);
  transition:transform .2s ease;
}
.accordion-item.is-active .accordion-title{color:var(--brand)}
.accordion-item.is-active .accordion-title::after{content:"−"}
.accordion-content{
  background:#FBFCFE;
  padding:0 24px;
}
.accordion-content p{font-size:14.8px;color:var(--ink-2);padding:4px 0 20px;line-height:1.85}

/* ---------- footer ---------- */
.site-footer{
  background:#0F1B2D;
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.5)}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:300px}
.footer-col h4{font-size:14.5px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{color:rgba(255,255,255,.68);font-size:13.8px}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:46px;height:46px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  border:0;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
  cursor:pointer;
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
  box-shadow:0 10px 24px rgba(27,79,191,.32);
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-dark)}

/* ---------- foundation overrides ---------- */
.grid-x{margin-left:-14px;margin-right:-14px}
.grid-x>.cell{padding-left:14px;padding-right:14px}
.grid-margin-x{margin-left:-14px;margin-right:-14px}
.callout{display:none}
a{color:var(--brand)}
a:hover,a:focus{color:var(--brand-dark)}
.accordion-title{background:transparent}
.accordion-title:hover,.accordion-title:focus{background:#F7FAFF;color:var(--brand)}
.accordion-content{border:0}
[type=text]:focus,[type=email]:focus,[type=password]:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,79,191,.12)}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .section{padding:64px 0}
  .nav-links,.nav-actions .badge{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-inner{min-height:64px;gap:16px}
  .hero{padding:56px 0 64px}
  .hero-float{position:static;width:100%;margin-top:20px;bottom:auto;right:auto}
  .hero-visual>img{aspect-ratio:16/10}
  .level-grid{grid-template-columns:1fr 1fr}
  .level-card.pro{margin-top:0;padding-top:30px}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
}
@media screen and (max-width:768px){
  .section{padding:52px 0}
  h2{font-size:22px}
  h3{font-size:18px}
  .lead{font-size:15.5px}
  .stat-grid{grid-template-columns:1fr 1fr}
  .level-grid{grid-template-columns:1fr}
  .topbar-link{margin-left:0}
  .topbar-inner{gap:10px}
  .cta-band{padding:54px 0}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .nav-inner{min-height:60px}
  .brand-mark{width:36px;height:36px;font-size:17px}
  .brand-text strong{font-size:15.5px}
  .brand-text em{font-size:10.5px}
  .hero{padding:44px 0 50px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{height:46px;padding:0 20px}
  .btn-lg{height:50px;padding:0 22px;font-size:16px}
  .accordion-title{font-size:15px;padding:16px 46px 16px 18px}
  .accordion-content{padding:0 18px}
  .to-top{right:16px;bottom:18px}
}

/* roulang page: article */
:root{
  --c-primary:#1B4FBF;
  --c-primary-dark:#173FA0;
  --c-primary-soft:#EAF1FE;
  --c-primary-line:#C6D8F7;
  --c-accent:#FF7A29;
  --c-accent-dark:#F06A18;
  --c-ink:#101B2D;
  --c-ink-2:#35435A;
  --c-ink-3:#66768F;
  --c-line:#E3E9F2;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-deep:#0F2E6B;
  --r-card:14px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,27,45,.06), 0 8px 24px rgba(27,79,191,.08);
  --shadow-md:0 2px 4px rgba(16,27,45,.08), 0 14px 32px rgba(27,79,191,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--c-ink)}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.btn:focus-visible,a:focus-visible,button:focus-visible,.nav-links a:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ---------- 顶部活动条 ---------- */
.topbar{background:#0F2E6B;color:rgba(255,255,255,.9);font-size:13px}
.topbar-inner{display:flex;align-items:center;gap:12px;min-height:40px;flex-wrap:wrap}
.topbar-tag{background:rgba(255,122,41,.18);color:#FFB27A;border:1px solid rgba(255,122,41,.42);padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em}
.topbar-text{color:rgba(255,255,255,.7)}
.countdown{display:inline-flex;align-items:center;gap:3px;font-variant-numeric:tabular-nums}
.cd-num{background:rgba(255,255,255,.13);border-radius:6px;padding:2px 8px;color:#fff;font-weight:600;font-size:13px}
.countdown i{font-style:normal;color:rgba(255,255,255,.45)}
.topbar-link{margin-left:auto;color:#FFB27A;font-weight:600}
.topbar-link:hover{color:#fff}

/* ---------- 主导航 ---------- */
.site-header{position:relative;z-index:60}
.mainnav{background:#fff;border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:60;box-shadow:0 2px 12px rgba(16,27,45,.04)}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{width:40px;height:40px;border-radius:11px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:19px;box-shadow:0 6px 16px rgba(27,79,191,.28);flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-ink-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{display:block;padding:9px 13px;border-radius:9px;font-size:15px;color:var(--c-ink-2);position:relative;transition:background .2s ease,color .2s ease}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-links a.active{color:var(--c-primary);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:17px;align-items:center;justify-content:center}
.nav-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,27,45,.42);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:190}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;width:292px;max-width:84vw;height:100%;background:#fff;z-index:200;transform:translateX(105%);transition:transform .3s ease;padding:22px 22px 32px;box-shadow:-12px 0 40px rgba(16,27,45,.2);overflow-y:auto}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-ink-2)}
.drawer-links a{display:block;padding:13px 10px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2);font-size:15px;border-radius:8px}
.drawer-links a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-links a.active{color:var(--c-primary);font-weight:600}
.drawer-cta{margin-top:22px;display:flex;flex-direction:column;gap:12px;align-items:stretch}
.drawer-cta .badge{align-self:flex-start}

/* ---------- 徽章 / 按钮 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.75}
.badge-orange{background:#FFF1E6;color:#C8500F;border:1px solid #FFD9BE}
.badge-blue{background:var(--c-primary-soft);color:var(--c-primary);border:1px solid var(--c-primary-line)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,41,.28)}
.btn-primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,41,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary-line)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-dark)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.36)}
.btn-light:hover{background:rgba(255,255,255,.22);color:#fff}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 页面头图 ---------- */
.page-hero{position:relative;background:#0B1B3A;color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.3}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,27,58,.95) 0%,rgba(15,46,107,.74) 62%,rgba(15,46,107,.6) 100%)}
.page-hero .container{position:relative;z-index:2;padding-top:50px;padding-bottom:54px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.32)}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.meta-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12.5px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.92)}
.meta-chip i{font-size:11px;color:#FFB27A}
.page-hero h1{font-size:clamp(26px,3.4vw,40px);font-weight:700;color:#fff;letter-spacing:.2px;max-width:920px}
.page-hero .hero-sub{margin-top:16px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.76);max-width:760px}

/* ---------- 主体布局 ---------- */
.main-wrap{padding:52px 0 76px}
.article-card{background:#fff;border:1px solid #E9EEF6;border-radius:var(--r-card);box-shadow:var(--shadow-sm);padding:40px 44px}
.article-body{max-width:800px;margin:0 auto;font-size:16px;line-height:1.9;color:#2C3A50;word-wrap:break-word;overflow-wrap:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:23px;font-weight:700;color:var(--c-ink);margin:2em 0 .85em;padding-left:14px;border-left:4px solid var(--c-primary);line-height:1.45}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;font-weight:600;color:var(--c-ink);margin:1.6em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;color:var(--c-ink);margin:1.4em 0 .5em}
.article-body blockquote{margin:1.5em 0;padding:14px 20px;background:var(--c-primary-soft);border-left:3px solid var(--c-primary);border-radius:0 10px 10px 0;color:var(--c-ink-2)}
.article-body ul{margin:0 0 1.2em;padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin:.45em 0}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;background:var(--c-primary)}
.article-body ol{counter-reset:li;margin:0 0 1.2em;padding-left:0}
.article-body ol li{position:relative;counter-increment:li;padding-left:34px;margin:.55em 0}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:.42em;width:23px;height:23px;border-radius:999px;background:var(--c-primary);color:#fff;font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.article-body img{border-radius:12px;margin:1.3em auto;box-shadow:var(--shadow-sm)}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:1.4em 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600}
.article-body tr:nth-child(even) td{background:#FBFCFE}
.article-body code{background:#F1F4FA;padding:2px 6px;border-radius:5px;font-size:14px;color:#1B4FBF}
.article-body strong{color:var(--c-ink)}
.article-body hr{border:none;height:1px;background:var(--c-line);margin:2em 0}

/* ---------- 空态 ---------- */
.article-empty{max-width:800px;margin:0 auto;text-align:center;padding:64px 20px}
.article-empty i{font-size:46px;color:var(--c-primary-line)}
.article-empty h2{margin-top:18px;font-size:22px}
.article-empty p{margin-top:10px;color:var(--c-ink-3);font-size:15px}
.article-empty .btn{margin-top:22px}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:22px}
.side-card{background:#fff;border:1px solid #E9EEF6;border-radius:var(--r-card);box-shadow:var(--shadow-sm);padding:22px}
.side-card h3{font-size:17px;display:flex;align-items:center;gap:9px;margin-bottom:14px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--c-accent)}
.rec-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line)}
.rec-item:first-of-type{padding-top:0}
.rec-item:last-child{border-bottom:0;padding-bottom:0}
.rec-item img{width:88px;height:64px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.rec-item h4{font-size:14.5px;font-weight:600;line-height:1.55;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-item h4 a{color:inherit}
.rec-item h4 a:hover{color:var(--c-primary)}
.rec-item span{display:block;font-size:12px;color:var(--c-ink-3);margin-top:5px}
.side-list li{padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{color:var(--c-ink-2);display:flex;align-items:center;justify-content:space-between;gap:8px}
.side-list a:hover{color:var(--c-primary)}
.side-list a i{font-size:11px;color:var(--c-ink-3)}
.side-note{margin-top:14px;padding:14px 16px;background:var(--c-primary-soft);border-radius:12px;font-size:13.5px;color:#2A3F६9;color:#2A3F69;line-height:1.75}

/* ---------- 订阅 / CTA 条 ---------- */
.cta-band{margin-top:44px;background:#0F2E6B;border-radius:18px;padding:40px 44px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;border-radius:50%;background:rgba(255,122,41,.16)}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px}
.cta-band h2{color:#fff;font-size:23px}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.74)}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex:0 0 auto;flex-wrap:wrap}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(27,79,191,.32);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .28s ease,transform .28s ease,visibility .28s ease;z-index:150}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-dark);color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1B2D;color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text em{color:rgba(255,255,255,.5)}
.site-footer .brand-mark{background:var(--c-primary)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer-col ul li a{color:rgba(255,255,255,.68);font-size:14px;line-height:2.2;display:inline-block}
.footer-col ul li a:hover{color:#fff}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.48)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .badge{display:none}
  .article-card{padding:32px 28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media screen and (max-width:768px){
  .topbar-text{display:none}
  .topbar-inner{min-height:38px;gap:10px}
  .topbar-link{font-size:0}
  .topbar-link::after{content:"立即注册";font-size:13px}
  .nav-inner{min-height:66px;gap:14px}
  .page-hero .container{padding-top:38px;padding-bottom:44px}
  .main-wrap{padding:36px 0 56px}
  .article-card{padding:26px 20px;border-radius:12px}
  .article-body{font-size:15.5px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17.5px}
  .cta-band{padding:28px 22px;border-radius:14px}
  .cta-band h2{font-size:20px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .brand-text strong{font-size:16px}
  .brand-text em{font-size:11px}
  .brand-mark{width:36px;height:36px;font-size:17px}
  .nav-actions .btn-sm{padding:8px 14px;font-size:13px}
  .page-hero h1{font-size:23px}
  .page-hero .hero-sub{font-size:14.5px}
  .article-body h2{font-size:19px;padding-left:11px;border-left-width:3px}
  .footer-grid{grid-template-columns:1fr}
  .to-top{right:14px;bottom:18px;width:42px;height:42px}
}

/* roulang page: category1 */
:root{
  --bg:#070B18;
  --bg-2:#0A1122;
  --panel:#0F1A2F;
  --panel-2:#14203A;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.06);
  --cyan:#22D3EE;
  --violet:#7C5CFF;
  --orange:#FF7A29;
  --orange-dark:#EA6714;
  --text:#E9EFFB;
  --text-2:#B7C5DE;
  --muted:#8296B5;
  --radius-xl:22px;
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(3,7,18,.55);
  --shadow-hover:0 18px 44px rgba(34,211,238,.16);
  --container:1200px;
  --sp-section:88px;
}
*,*::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:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease;}
a:hover{color:#7CE7FA;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.2px;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-section) 0;}
.section--tight{padding:64px 0;}
.section--panel{background:var(--bg-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),var(--violet));border-radius:2px;}
.section-title{font-size:clamp(22px,3vw,30px);color:#fff;}
.section-desc{margin-top:14px;color:var(--text-2);font-size:15.5px;}

/* ---------- 顶部活动条 ---------- */
.topbar{background:linear-gradient(90deg,rgba(124,92,255,.22),rgba(34,211,238,.14)),#0A1020;border-bottom:1px solid var(--line-soft);}
.topbar-inner{display:flex;align-items:center;gap:14px;min-height:40px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px;}
.topbar-tag{background:rgba(255,122,41,.16);color:#FFB37A;border:1px solid rgba(255,122,41,.4);border-radius:999px;font-size:12px;padding:2px 10px;font-weight:600;}
.topbar-text{color:var(--muted);font-size:13px;}
.countdown{display:inline-flex;align-items:center;gap:3px;font-variant-numeric:tabular-nums;font-weight:700;color:#fff;font-size:14px;}
.countdown i{color:var(--muted);font-style:normal;}
.cd-num{background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.32);color:#9FF1FB;border-radius:6px;padding:1px 6px;min-width:30px;text-align:center;}
.topbar-link{margin-left:auto;font-size:13px;color:#9FF1FB;border-bottom:1px solid rgba(159,241,251,.35);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.mainnav{background:rgba(7,11,24,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:26px;min-height:70px;}
.brand{display:inline-flex;align-items:center;gap:11px;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#05101F;font-weight:800;font-size:18px;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{color:#fff;font-size:17px;font-weight:800;letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-links a{
  display:block;padding:9px 14px;border-radius:999px;color:var(--text-2);
  font-size:15px;font-weight:500;position:relative;transition:all .2s ease;
}
.nav-links a:hover{color:#fff;background:rgba(124,92,255,.14);}
.nav-links a.active{color:#0A1020;background:linear-gradient(135deg,var(--cyan),#5FE3F5);font-weight:700;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;background:rgba(255,255,255,.06);border:1px solid var(--line);color:#fff;width:40px;height:40px;border-radius:12px;font-size:16px;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;white-space:nowrap;}
.badge-orange{background:rgba(255,122,41,.15);color:#FFB37A;border:1px solid rgba(255,122,41,.38);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-sm);border:1px solid transparent;
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  transition:all .2s ease;cursor:pointer;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:16px;}
.btn-primary{background:var(--orange);color:#160A02;box-shadow:0 8px 22px rgba(255,122,41,.28);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,122,41,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,122,41,.26);}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(34,211,238,.5);color:#BFF3FB;}
.btn-ghost:hover{background:rgba(34,211,238,.14);color:#fff;border-color:var(--cyan);}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:72px 0 76px;background:
  radial-gradient(900px 420px at 82% -10%,rgba(124,92,255,.28),transparent 62%),
  radial-gradient(720px 380px at 8% 8%,rgba(34,211,238,.18),transparent 60%),
  var(--bg);
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.5),transparent);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.hero-breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px;}
.hero-breadcrumb a{color:var(--text-2);}
.hero-breadcrumb span{margin:0 8px;color:rgba(255,255,255,.25);}
.hero-title{font-size:clamp(28px,4vw,42px);color:#fff;margin-bottom:18px;}
.hero-title b{background:linear-gradient(120deg,var(--cyan),#A78BFA);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{color:var(--text-2);font-size:16.5px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{font-size:12.5px;color:#C6D4EE;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;padding:5px 13px;}
.tag i{color:var(--cyan);margin-right:5px;}
.hero-visual{position:relative;}
.hero-img{border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.hero-img img{width:100%;height:360px;object-fit:cover;}
.float-card{
  position:absolute;left:-18px;bottom:-26px;width:250px;
  background:rgba(15,26,47,.94);border:1px solid rgba(34,211,238,.28);
  border-radius:var(--radius-lg);padding:18px 20px;box-shadow:var(--shadow);backdrop-filter:blur(10px);
}
.float-title{font-size:13px;color:var(--muted);margin-bottom:10px;}
.lvl-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#0A1020;background:linear-gradient(135deg,var(--cyan),var(--violet));border-radius:999px;padding:4px 12px;margin-bottom:14px;}
.progress-row{margin-bottom:11px;}
.progress-row:last-child{margin-bottom:0;}
.progress-label{display:flex;justify-content:space-between;font-size:12px;color:var(--text-2);margin-bottom:6px;font-variant-numeric:tabular-nums;}
.progress-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.progress-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--violet));}

/* ---------- 数据条 ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 22px;transition:all .25s ease;
}
.stat-card:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.4);box-shadow:var(--shadow-hover);}
.stat-num{font-size:28px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-num small{font-size:14px;color:var(--cyan);margin-left:4px;font-weight:600;}
.stat-label{color:var(--muted);font-size:13.5px;margin-top:8px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:6px;}
.timeline::before{content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;background:linear-gradient(180deg,var(--cyan),var(--violet),transparent);}
.step{position:relative;display:grid;grid-template-columns:52px 1fr;gap:22px;padding-bottom:30px;}
.step:last-child{padding-bottom:0;}
.step-num{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--panel-2);border:1px solid rgba(34,211,238,.35);color:var(--cyan);
  font-weight:800;font-size:17px;font-variant-numeric:tabular-nums;z-index:1;
}
.step-body{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px 24px;transition:all .25s ease;}
.step-body:hover{border-color:rgba(124,92,255,.4);transform:translateX(3px);}
.step-body h3{font-size:18px;color:#fff;margin-bottom:8px;}
.step-body p{color:var(--text-2);font-size:15px;}
.step-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:10px;}
.chip{font-size:12px;color:#A9F0FA;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.28);border-radius:999px;padding:3px 11px;}

/* ---------- 材料清单 ---------- */
.mat-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start;}
.mat-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px 32px;}
.mat-card h3{font-size:19px;color:#fff;margin-bottom:18px;}
.mat-list li{display:flex;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line);color:var(--text-2);font-size:15px;}
.mat-list li:last-child{border-bottom:0;}
.mat-list i{color:var(--cyan);margin-top:6px;font-size:14px;}
.mat-list b{color:#fff;font-weight:600;}
.side-card{
  background:linear-gradient(160deg,rgba(124,92,255,.18),rgba(34,211,238,.08));
  border:1px solid rgba(124,92,255,.3);border-radius:var(--radius-xl);padding:28px;margin-bottom:22px;
}
.side-card h3{font-size:17px;color:#fff;margin-bottom:12px;}
.side-card p{color:var(--text-2);font-size:14.5px;}
.side-card ul{margin-top:14px;}
.side-card li{font-size:14px;color:var(--text-2);padding:6px 0 6px 18px;position:relative;}
.side-card li::before{content:"";position:absolute;left:0;top:15px;width:6px;height:6px;border-radius:50%;background:var(--cyan);}
.mini-img{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.mini-img img{width:100%;height:170px;object-fit:cover;}

/* ---------- 提示卡组 ---------- */
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.note-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:all .25s ease;}
.note-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.42);box-shadow:var(--shadow-hover);}
.note-card img{width:100%;height:168px;object-fit:cover;}
.note-body{padding:22px 24px;}
.note-body h3{font-size:17px;color:#fff;margin-bottom:9px;}
.note-body p{color:var(--text-2);font-size:14.5px;}
.note-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:rgba(34,211,238,.14);color:var(--cyan);margin-bottom:14px;}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;color:#fff;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;font-size:16.5px;font-weight:600;transition:color .2s ease;
}
.faq-q:hover{color:var(--cyan);}
.faq-q i{color:var(--cyan);font-size:14px;transition:transform .26s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;color:var(--text-2);font-size:15px;padding:0 4px;}
.faq-item.open .faq-a{max-height:340px;padding-bottom:22px;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(124,92,255,.28),rgba(34,211,238,.16)),#0B1426;
  border-top:1px solid rgba(34,211,238,.24);border-bottom:1px solid rgba(34,211,238,.24);
}
.cta-inner{display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;padding:60px 0;}
.cta-inner h2{font-size:clamp(22px,3vw,30px);color:#fff;}
.cta-inner p{color:var(--text-2);margin-top:14px;max-width:640px;}
.cta-side{display:flex;flex-direction:column;gap:12px;}
.guard{display:flex;align-items:center;gap:10px;font-size:14px;color:#C7D6EE;}
.guard i{color:var(--cyan);}

/* ---------- 页脚 ---------- */
.site-footer{background:#050912;border-top:1px solid var(--line);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;padding-bottom:38px;border-bottom:1px solid var(--line-soft);}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--muted);font-size:14px;max-width:330px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--muted);font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:22px;color:#5F7093;font-size:13px;}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--orange);color:#160A02;border:0;display:grid;place-items:center;
  font-size:17px;box-shadow:0 12px 28px rgba(255,122,41,.34);
  opacity:0;pointer-events:none;transform:translateY(10px);transition:all .28s ease;z-index:70;
}
.back-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.back-top:hover{background:var(--orange-dark);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sp-section:68px;}
  .hero-grid{grid-template-columns:1fr;gap:64px;}
  .hero-sub{max-width:none;}
  .float-card{left:0;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .mat-grid{grid-template-columns:1fr;}
  .note-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;}
  .cta-inner{grid-template-columns:1fr;padding:52px 0;}
  .nav-links{gap:0;}
  .nav-links a{padding:9px 10px;font-size:14px;}
}
@media (max-width:860px){
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:280px;
    background:#080E1D;border-left:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 28px;transform:translateX(105%);
    transition:transform .3s ease;z-index:80;overflow-y:auto;
  }
  .site-header.nav-open .nav-links{transform:translateX(0);}
  .nav-links a{padding:13px 16px;border-radius:12px;font-size:15.5px;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-actions .badge-orange{display:none;}
  .nav-backdrop{
    position:fixed;inset:0;background:rgba(4,8,18,.62);z-index:70;opacity:0;pointer-events:none;transition:opacity .3s ease;
  }
  .site-header.nav-open .nav-backdrop{opacity:1;pointer-events:auto;}
}
@media (max-width:640px){
  :root{--sp-section:52px;}
  .container{padding:0 18px;}
  .topbar-text{display:none;}
  .page-hero{padding:48px 0 64px;}
  .hero-img img{height:250px;}
  .float-card{position:static;width:100%;margin-top:18px;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .note-grid{grid-template-columns:1fr;}
  .mat-card{padding:24px 20px;}
  .step{grid-template-columns:42px 1fr;gap:14px;}
  .step-num{width:40px;height:40px;font-size:15px;}
  .timeline::before{left:19px;}
  .cta-side{width:100%;}
  .btn{width:100%;}
  .hero-cta .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
}
@media (min-width:1441px){
  :root{--container:1280px;}
}

/* roulang page: category2 */
:root{
  --blue:#1B4FBF;
  --blue-dark:#173FA0;
  --blue-soft:#EAF1FE;
  --blue-line:#C6D8F7;
  --orange:#FF7A29;
  --orange-dark:#E96A1C;
  --gold:#C9A15A;
  --slate:#8A99AD;
  --ink:#101B2D;
  --ink-2:#35435A;
  --ink-3:#66768F;
  --line:#E3E9F2;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --deep:#0F2E6B;
  --deepest:#0B162B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,27,45,.06), 0 8px 24px rgba(27,79,191,.08);
  --sh-2:0 2px 4px rgba(16,27,45,.08), 0 14px 32px rgba(27,79,191,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--blue);text-decoration:none;}
a:hover{color:var(--blue-dark);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.grid-x{margin-left:-14px;margin-right:-14px;}
.grid-x>.cell{padding-left:14px;padding-right:14px;}
.section{padding:88px 0;}
.section-sm{padding:60px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{
  font-size:28px;
  font-weight:700;
  line-height:1.4;
  letter-spacing:.2px;
}
.section-head p{
  margin-top:12px;
  font-size:16px;
  color:var(--ink-3);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--blue);
  background:var(--blue-soft);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:14px;
}
.eyebrow i{font-size:12px;}

/* 顶部活动条 */
.topbar{
  background:linear-gradient(90deg,var(--deepest) 0%,var(--deep) 100%);
  color:#fff;
  font-size:13px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:38px;
  flex-wrap:nowrap;
  overflow:hidden;
}
.topbar-tag{
  background:var(--orange);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:2px 10px;
  border-radius:var(--r-pill);
  flex:0 0 auto;
}
.topbar-text{color:rgba(255,255,255,.78);flex:0 0 auto;}
.countdown{
  display:inline-flex;
  align-items:center;
  gap:2px;
  font-variant-numeric:tabular-nums;
  font-weight:700;
  color:#fff;
  letter-spacing:.5px;
  flex:0 0 auto;
}
.cd-num{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  border-radius:6px;
  padding:1px 7px;
  min-width:32px;
  text-align:center;
}
.countdown i{color:rgba(255,255,255,.5);font-style:normal;padding:0 2px;}
.topbar-link{
  margin-left:auto;
  color:#fff;
  font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.45);
  padding-bottom:1px;
  flex:0 0 auto;
}
.topbar-link:hover{color:#fff;border-bottom-color:#fff;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:50;}
.mainnav{
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,27,45,.04);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--blue) 0%,#2E6BFF 100%);
  color:#fff;
  font-weight:700;
  font-size:19px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 16px rgba(27,79,191,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.4px;}
.brand-text em{
  font-style:normal;
  font-size:11px;
  letter-spacing:2.5px;
  color:var(--ink-3);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
}
.nav-links li{flex:0 0 auto;}
.nav-links a{
  position:relative;
  display:block;
  padding:10px 12px;
  font-size:15px;
  color:var(--ink-2);
  border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--blue);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-links a:hover{color:var(--blue);background:var(--blue-soft);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--blue);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:17px;
}
.nav-toggle:hover{background:var(--blue-soft);color:var(--blue);border-color:var(--blue-line);}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  padding:12px 24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--orange);
  color:#fff;
  box-shadow:0 6px 18px rgba(255,122,41,.28);
}
.btn-primary:hover{
  background:var(--orange-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(255,122,41,.34);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,122,41,.24);}
.btn-outline{
  background:#fff;
  color:var(--blue);
  border:1.5px solid var(--blue);
}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue-dark);}
.btn-ghost{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,.5);
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* 徽章标签 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  border-radius:var(--r-pill);
  padding:4px 12px;
  line-height:1.6;
}
.badge-orange{background:#FFF0E5;color:var(--orange-dark);}
.badge-blue{background:var(--blue-soft);color:var(--blue);}
.badge-gold{background:#FBF3E3;color:#9A7529;}
.badge-gray{background:#EEF1F6;color:#5A6A80;}
.badge-line{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.3);}

/* Hero */
.hero{padding:72px 0 64px;background:#fff;border-bottom:1px solid var(--line);}
.hero-grid{align-items:center;}
.hero h1{
  font-size:clamp(28px,4vw,42px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.2px;
}
.hero .lead{
  margin-top:18px;
  font-size:17px;
  color:var(--ink-2);
  max-width:560px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.hero-cta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-visual{position:relative;}
.hero-img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh-1);
}
.hero-card{
  position:absolute;
  left:-18px;
  bottom:-24px;
  width:250px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  padding:18px 20px;
}
.hero-card .hc-top{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.hc-badge{
  width:40px;height:40px;
  border-radius:50%;
  background:var(--blue-soft);
  color:var(--blue);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:16px;
}
.hc-title{font-size:14px;font-weight:700;}
.hc-sub{font-size:12px;color:var(--ink-3);}
.hc-row{margin-top:12px;}
.hc-row .hc-label{
  display:flex;
  justify-content:space-between;
  font-size:12px;
  color:var(--ink-3);
  margin-bottom:6px;
}
.hc-row .hc-label b{color:var(--ink);font-variant-numeric:tabular-nums;}
.bar{
  height:6px;
  border-radius:var(--r-pill);
  background:#EDF1F8;
  overflow:hidden;
}
.bar > span{display:block;height:100%;border-radius:var(--r-pill);background:var(--blue);}
.bar-gold > span{background:var(--gold);}
.w-38{width:38%;}
.w-62{width:62%;}

/* 板块通用 */
.bg-white{background:#fff;}
.card{
  background:var(--card);
  border:1px solid #E9EEF6;
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card-hover:hover{
  transform:translateY(-2px);
  border-color:var(--blue-line);
  box-shadow:var(--sh-2);
}
.card-hover:hover h3{color:var(--blue);}

/* 等级阶梯 */
.ladder{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:end;
}
.ladder-step{
  background:#fff;
  border:1px solid #E9EEF6;
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  position:relative;
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.ladder-step::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:4px;
}
.step-1::before{background:var(--slate);}
.step-2::before{background:var(--blue);}
.step-3::before{background:var(--gold);}
.step-1{padding-bottom:50px;}
.step-2{padding-bottom:74px;}
.step-3{padding-bottom:98px;}
.ladder-step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--blue-line);}
.ladder-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.ladder-badge{
  width:44px;height:44px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:17px;
  color:#fff;
  flex:0 0 auto;
}
.bg-slate{background:var(--slate);}
.bg-blue{background:var(--blue);}
.bg-gold{background:var(--gold);}
.ladder-head h3{font-size:19px;font-weight:600;}
.ladder-head span{font-size:12px;color:var(--ink-3);display:block;font-weight:400;}
.ladder-step p{font-size:14.5px;color:var(--ink-2);}
.ladder-meta{
  margin-top:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--ink-3);
  border-top:1px dashed var(--line);
  padding-top:14px;
}
.ladder-meta b{font-size:18px;color:var(--ink);font-variant-numeric:tabular-nums;}

/* 等级详情 */
.level-block{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:36px;
  background:#fff;
  border:1px solid #E9EEF6;
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:32px;
  margin-bottom:24px;
  position:relative;
  overflow:hidden;
}
.level-block::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:5px;
}
.lv-1::before{background:var(--slate);}
.lv-2::before{background:var(--blue);}
.lv-3::before{background:var(--gold);}
.level-aside{display:flex;flex-direction:column;gap:14px;}
.level-aside h3{font-size:22px;font-weight:700;}
.level-aside .lv-desc{font-size:14.5px;color:var(--ink-3);}
.level-cover{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img);
}
.level-body h4{
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  margin-bottom:12px;
}
.tick-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:10px 22px;
  margin-bottom:22px;
}
.tick-list li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:14.5px;
  color:var(--ink-2);
}
.tick-list i{
  color:var(--blue);
  font-size:13px;
  margin-top:6px;
  flex:0 0 auto;
}
.lv-3 .tick-list i{color:var(--gold);}
.level-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  border-top:1px dashed var(--line);
  padding-top:18px;
}
.level-foot .foot-item{font-size:13px;color:var(--ink-3);}
.level-foot .foot-item b{color:var(--ink);font-weight:600;}

/* 对比引用 */
.ref-panel{
  background:#fff;
  border:1px solid #E9EEF6;
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:34px;
}
.ref-metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin:26px 0 24px;
}
.metric{
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:12px;
  padding:20px;
  text-align:center;
}
.metric .num{
  font-size:30px;
  font-weight:700;
  color:var(--blue);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.metric .num.gold{color:var(--gold);}
.metric .lbl{font-size:13px;color:var(--ink-3);margin-top:6px;}
.ref-note{
  font-size:14px;
  color:var(--ink-3);
  border-left:3px solid var(--blue-line);
  padding-left:14px;
  margin-bottom:22px;
}

/* 流程 */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  counter-reset:step;
}
.flow-item{
  background:#fff;
  border:1px solid #E9EEF6;
  border-radius:var(--r-card);
  padding:26px 22px;
  box-shadow:var(--sh-1);
  position:relative;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.flow-num{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--blue-soft);
  color:var(--blue);
  font-weight:700;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--ink-3);}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid #E9EEF6;
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item.open{border-color:var(--blue-line);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 22px;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink);
  min-height:56px;
}
.faq-q:hover{color:var(--blue);}
.faq-q i{
  color:var(--blue);
  font-size:14px;
  transition:transform .25s var(--ease);
  flex:0 0 auto;
}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{
  display:none;
  padding:0 22px 20px;
  font-size:14.5px;
  color:var(--ink-2);
  background:#FBFCFE;
}
.faq-item.open .faq-a{display:block;}

/* CTA 色带 */
.cta-band{
  background:linear-gradient(120deg,var(--deep) 0%,#123A85 100%);
  border-radius:18px;
  padding:56px 48px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,41,.35) 0%,rgba(255,122,41,0) 70%);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.4;}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.78);max-width:640px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-points{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
  position:relative;
  z-index:1;
}
.cta-points span{
  font-size:13px;
  color:#fff;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-pill);
  padding:5px 14px;
}

/* 页脚 */
.site-footer{
  background:var(--deepest);
  color:rgba(255,255,255,.7);
  padding:64px 0 26px;
  margin-top:0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand .brand{margin-bottom:16px;color:#fff;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-mark{
  background:linear-gradient(140deg,var(--blue) 0%,#2E6BFF 100%);
}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{
  font-size:13.5px;
  color:rgba(255,255,255,.62);
  transition:color .2s var(--ease);
}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:44px;height:44px;
  border-radius:50%;
  background:var(--blue);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 8px 20px rgba(27,79,191,.3);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s,background .2s var(--ease);
  z-index:60;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--blue-dark);color:#fff;}

/* 移动抽屉遮罩 */
.nav-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(11,22,43,.3);
  z-index:55;
}
.nav-mask.show{display:block;}

/* 响应式 */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}
@media (max-width:1024px){
  .nav-links{
    position:fixed;
    top:0;right:0;
    width:290px;
    height:100vh;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:88px 22px 32px;
    transform:translateX(102%);
    transition:transform .3s var(--ease);
    box-shadow:-12px 0 32px rgba(16,27,45,.12);
    z-index:58;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{padding:13px 12px;font-size:15.5px;}
  .nav-links a::after{display:none;}
  .nav-links a.active{background:var(--blue-soft);}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-inner{gap:16px;justify-content:space-between;}
  .hero-card{position:static;width:100%;margin-top:20px;}
  .level-block{grid-template-columns:1fr;gap:24px;}
  .level-cover{aspect-ratio:16/9;}
  .ladder{grid-template-columns:1fr;align-items:stretch;}
  .step-1,.step-2,.step-3{padding-bottom:26px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .hero{padding:52px 0 48px;}
  .hero .lead{font-size:16px;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:40px 26px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
  .ref-panel{padding:26px 22px;}
  .ref-metrics{grid-template-columns:1fr;}
  .tick-list{grid-template-columns:1fr;}
  .level-block{padding:24px 20px;}
  .topbar-inner{gap:10px;font-size:12px;}
  .topbar-text{display:none;}
  .hero-cta .btn{flex:1 1 auto;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .grid-x{margin-left:-8px;margin-right:-8px;}
  .grid-x>.cell{padding-left:8px;padding-right:8px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text em{font-size:10px;letter-spacing:1.6px;}
  .brand-mark{width:34px;height:34px;font-size:17px;}
  .nav-actions .badge{display:none;}
  .flow{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:16px;bottom:18px;}
  .cta-band{padding:32px 20px;}
}

/* roulang page: category3 */
:root{
  --blue:#1B4FBF;
  --blue-dark:#173FA0;
  --blue-soft:#EAF1FE;
  --blue-line:#C6D8F7;
  --orange:#FF7A29;
  --orange-dark:#E96A17;
  --orange-soft:#FFF1E6;
  --gold:#C9A15A;
  --gold-soft:#FBF3E2;
  --ink:#101B2D;
  --ink-2:#35435A;
  --muted:#66768F;
  --line:#E3E9F2;
  --line-strong:#E9EEF6;
  --bg:#F6F8FC;
  --surface:#FFFFFF;
  --deep:#0F2E6B;
  --footer-bg:#0F1B2D;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(16,27,45,.06),0 8px 24px rgba(27,79,191,.08);
  --shadow-hover:0 2px 4px rgba(16,27,45,.08),0 14px 32px rgba(27,79,191,.14);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--blue);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--blue-dark);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.35;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--blue);
  background:var(--blue-soft);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.section-head h2{font-size:28px;margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;line-height:1.9;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 4px 14px rgba(255,122,41,.28);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 22px rgba(255,122,41,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue);}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue-dark);border-color:var(--blue-dark);}
.btn-light{background:#fff;color:var(--deep);}
.btn-light:hover{background:#EAF1FE;color:var(--deep);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.7;
}
.badge-orange{background:var(--orange-soft);color:#C9541A;}
.badge-blue{background:var(--blue-soft);color:var(--blue);}
.badge-gold{background:var(--gold-soft);color:#8C6B29;}
.badge-grey{background:#EFF2F7;color:var(--muted);}
.badge-solid-white{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.3);}

/* 顶部活动条 */
.topbar{background:var(--deep);color:#fff;font-size:13px;}
.topbar-inner{display:flex;align-items:center;gap:14px;height:38px;}
.topbar-tag{background:var(--orange);color:#fff;border-radius:999px;padding:1px 10px;font-size:12px;font-weight:600;}
.topbar-text{color:rgba(255,255,255,.82);}
.countdown{display:inline-flex;align-items:center;gap:4px;font-variant-numeric:tabular-nums;font-weight:700;}
.cd-num{display:inline-block;min-width:26px;text-align:center;background:rgba(255,255,255,.14);border-radius:6px;padding:1px 4px;}
.countdown i{font-style:normal;color:rgba(255,255,255,.6);}
.topbar-link{margin-left:auto;color:#fff;font-weight:600;border-bottom:1px solid rgba(255,255,255,.4);}
.topbar-link:hover{color:#fff;border-color:#fff;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;}
.mainnav{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(16,27,45,.04);}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#1B4FBF,#3B76E8);
  color:#fff;font-weight:700;font-size:19px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;letter-spacing:.5px;color:var(--ink);}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:26px;margin:0 0 0 8px;flex:1 1 auto;}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--blue);border-radius:2px;transition:width .25s ease;
}
.nav-links a:hover{color:var(--blue);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--blue);font-weight:600;}
.nav-links a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);font-size:16px;
}
.nav-toggle:hover{background:var(--blue-soft);color:var(--blue);border-color:var(--blue-line);}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:288px;max-width:86vw;
  background:#fff;z-index:90;transform:translateX(105%);
  transition:transform .3s ease;padding:22px 20px;overflow-y:auto;
  box-shadow:-8px 0 32px rgba(16,27,45,.16);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2);}
.drawer-close:hover{background:var(--blue-soft);color:var(--blue);}
.drawer ul{margin-bottom:20px;}
.drawer ul li a{
  display:block;padding:12px 12px;border-radius:10px;color:var(--ink-2);
  font-size:15px;border-bottom:1px solid var(--line-strong);border-radius:0;
}
.drawer ul li:last-child a{border-bottom:0;}
.drawer ul li a.active{color:var(--blue);font-weight:600;background:var(--blue-soft);border-radius:10px;border-bottom-color:transparent;}
.drawer ul li a:hover{color:var(--blue);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,27,45,.3);
  opacity:0;visibility:hidden;transition:opacity .3s ease;z-index:85;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* 内页 Hero */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(15,46,107,.94) 0%,rgba(27,79,191,.86) 55%,rgba(15,27,45,.78) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover,cover;background-position:center,center;
  padding:88px 0 92px;
}
.page-hero .crumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;}
.page-hero .crumb a{color:rgba(255,255,255,.82);}
.page-hero .crumb a:hover{color:#fff;}
.page-hero .crumb span{margin:0 8px;opacity:.6;}
.page-hero h1{font-size:clamp(28px,4vw,44px);color:#fff;margin-bottom:16px;max-width:15em;}
.page-hero .lede{font-size:17px;color:rgba(255,255,255,.88);max-width:44em;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-side{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius);padding:24px;backdrop-filter:blur(6px);
}
.hero-side h3{color:#fff;font-size:17px;margin-bottom:14px;}
.hero-side ul li{
  display:flex;align-items:flex-start;gap:10px;
  color:rgba(255,255,255,.9);font-size:14px;padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.18);
}
.hero-side ul li:last-child{border-bottom:0;}
.hero-side ul li i{color:var(--orange);margin-top:5px;font-size:13px;}
.hero-figure{
  border-radius:12px;overflow:hidden;aspect-ratio:16/10;margin-top:20px;
  box-shadow:0 16px 36px rgba(6,18,45,.35);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}

/* 数据条 */
.statstrip{margin-top:-46px;position:relative;z-index:5;}
.stat-grid{
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px 12px;
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-item{padding:6px 22px;border-right:1px solid var(--line-strong);}
.stat-item:last-child{border-right:0;}
.stat-item .val{
  font-size:22px;font-weight:700;color:var(--blue);
  font-variant-numeric:tabular-nums;margin-bottom:2px;
}
.stat-item .lab{font-size:13px;color:var(--muted);}

/* 图文交替 */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-row + .split-row{margin-top:72px;}
.split-row.reverse .split-media{order:2;}
.split-row.reverse .split-body{order:1;}
.split-media{border-radius:12px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow);}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-body h2{font-size:26px;margin-bottom:14px;}
.split-body p{color:var(--ink-2);margin-bottom:18px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);padding:6px 0;
}
.check-list li i{color:var(--blue);margin-top:6px;font-size:13px;}
.split-body .btn{margin-top:8px;}

/* 权益宫格 */
.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.benefit-card{
  background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:26px 24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.benefit-card:hover{transform:translateY(-2px);border-color:var(--blue-line);box-shadow:var(--shadow-hover);}
.benefit-icon{
  width:46px;height:46px;border-radius:12px;background:var(--blue-soft);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.benefit-card h3{font-size:18px;margin-bottom:8px;}
.benefit-card p{font-size:14.5px;color:var(--ink-2);margin:0 0 16px;line-height:1.8;}
.benefit-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;}

/* 规则清单面板 */
.rule-panel{
  background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:32px;
}
.rule-panel h3{font-size:20px;margin-bottom:18px;}
.rule-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 32px;}
.rule-list li{
  display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);
  padding-bottom:14px;border-bottom:1px dashed var(--line);
}
.rule-list li i{color:var(--orange);margin-top:6px;font-size:13px;}

/* 反馈卡 */
.feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feedback-card{
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--radius);padding:26px 24px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feedback-card:hover{transform:translateY(-2px);border-color:var(--blue-line);box-shadow:var(--shadow-hover);}
.feedback-card .stars{color:var(--orange);font-size:13px;margin-bottom:12px;letter-spacing:2px;}
.feedback-card p{font-size:15px;color:var(--ink-2);margin-bottom:16px;}
.feedback-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.avatar{
  width:34px;height:34px;border-radius:999px;background:var(--blue-soft);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;
}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line-strong);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:var(--blue-line);box-shadow:var(--shadow);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--ink);min-height:56px;
}
.faq-q i{color:var(--blue);transition:transform .25s ease;font-size:14px;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#FBFCFE;}
.faq-a-inner{padding:2px 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.9;}

/* CTA 色带 */
.cta-band{
  background-image:linear-gradient(100deg,rgba(15,46,107,.96),rgba(27,79,191,.92)),url(/assets/images/backpic/back-3.png);
  background-size:cover,cover;background-position:center,center;
  color:#fff;padding:64px 0;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.86);max-width:42em;margin-bottom:24px;}
.cta-guarantees{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-guarantees span{
  display:inline-flex;align-items:center;gap:7px;font-size:14px;
  color:rgba(255,255,255,.9);background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:6px 14px;
}
.cta-guarantees i{color:var(--orange);font-size:12px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.72);padding:64px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.55);}
.footer-brand p{color:rgba(255,255,255,.65);font-size:13.5px;line-height:1.9;margin:0;max-width:32em;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(255,255,255,.7);font-size:14px;}
.footer-col ul li a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:22px;font-size:13px;color:rgba(255,255,255,.55);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:999px;
  border:0;background:var(--blue);color:#fff;font-size:15px;z-index:70;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(27,79,191,.35);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s,background-color .2s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--blue-dark);}

/* 断点 */
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .split-row{gap:36px;}
  .benefit-grid,.feedback-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:18px;}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){padding-bottom:16px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .page-hero{padding:64px 0 76px;}
  .topbar-text{display:none;}
  .split-row{grid-template-columns:1fr;gap:24px;}
  .split-row.reverse .split-media{order:0;}
  .split-row.reverse .split-body{order:0;}
  .split-body h2{font-size:22px;}
  .section-head h2{font-size:22px;}
  .rule-list{grid-template-columns:1fr;}
  .statstrip{margin-top:-34px;}
  .stat-grid{padding:20px 6px;}
  .stat-item{padding:6px 16px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .nav-inner{height:64px;gap:12px;}
  .brand-text em{letter-spacing:1px;}
  .nav-actions .badge{display:none;}
  .benefit-grid,.feedback-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line-strong);padding:12px 16px;}
  .stat-item:last-child{border-bottom:0;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .rule-panel{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category4 */
:root{
  --brand:#1B4FBF;
  --brand-hover:#173FA0;
  --brand-soft:#EAF1FE;
  --brand-line:#C6D8F7;
  --accent:#FF7A29;
  --accent-hover:#E96A18;
  --ink:#101B2D;
  --ink-2:#35435A;
  --ink-3:#66768F;
  --line:#E3E9F2;
  --line-soft:#E9EEF6;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --dark:#0F2E6B;
  --dark-2:#0F1B2D;
  --gold:#C9A15A;
  --silver:#8A99AD;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,27,45,.06), 0 8px 24px rgba(27,79,191,.08);
  --sh-2:0 2px 4px rgba(16,27,45,.08), 0 14px 32px rgba(27,79,191,.14);
  --gap:32px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-hover);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.32;letter-spacing:.2px;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 通用按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.3px;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,41,.28);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,122,41,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,122,41,.26);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-hover);border-color:var(--brand);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--dark);}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-hover);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.4;}
.badge-orange{background:#FFF1E6;color:#C2521A;}
.badge-blue{background:var(--brand-soft);color:var(--brand);}
.badge-gold{background:#FBF3E4;color:#8A6520;}
.badge-silver{background:#EEF1F6;color:#59677C;}
.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand);}

/* ---------- 顶部活动条 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 var(--line), 0 8px 22px rgba(16,27,45,.05);}
.topbar{background:linear-gradient(90deg,var(--dark) 0%,#123A82 55%,#0F2E6B 100%);color:#fff;font-size:13px;}
.topbar-inner{display:flex;align-items:center;gap:14px;min-height:40px;flex-wrap:nowrap;overflow:hidden;}
.topbar-tag{background:var(--accent);color:#fff;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;flex:0 0 auto;}
.topbar-text{color:rgba(255,255,255,.82);flex:0 0 auto;}
.countdown{display:inline-flex;align-items:center;gap:4px;font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-weight:700;letter-spacing:.5px;flex:0 0 auto;}
.cd-num{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.18);border-radius:6px;padding:2px 7px;font-size:13px;}
.countdown i{font-style:normal;color:rgba(255,255,255,.55);}
.topbar-link{margin-left:auto;color:#fff;font-weight:600;text-decoration:underline;text-underline-offset:3px;flex:0 0 auto;}
.topbar-link:hover{color:#FFD9BE;}

/* ---------- 导航 ---------- */
.mainnav{background:#fff;border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(140deg,var(--brand),#2B63D8);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;box-shadow:0 6px 16px rgba(27,79,191,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.14;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--ink-3);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:10px;}
.nav-links li{list-style:none;}
.nav-links a{position:relative;display:inline-block;padding:26px 0;font-size:15px;color:var(--ink-2);font-weight:500;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:18px;width:0;height:2px;background:var(--brand);border-radius:2px;transition:width .22s ease;}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--brand);font-weight:700;}
.nav-links a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:16px;}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line);}

/* ---------- 面包屑 / 内页 Hero ---------- */
.crumb{font-size:13px;color:var(--ink-3);margin-bottom:14px;}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand);}
.crumb span{color:var(--brand);font-weight:600;}
.page-hero{
  position:relative;
  padding:72px 0 64px;
  background:
    radial-gradient(900px 380px at 88% -10%, rgba(27,79,191,.12), transparent 70%),
    linear-gradient(180deg,#F3F7FF 0%,var(--bg) 100%);
  overflow:hidden;
}
.page-hero::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:var(--line-soft);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--brand-line);color:var(--brand);font-size:12.5px;font-weight:600;margin-bottom:18px;}
.eyebrow i{font-size:11px;}
.page-hero h1{font-size:clamp(28px,4vw,44px);margin-bottom:16px;}
.page-hero h1 b{color:var(--brand);font-weight:700;}
.hero-sub{font-size:16.5px;color:var(--ink-2);max-width:620px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-figure{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--line-soft);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-float{
  position:absolute;right:16px;bottom:16px;background:rgba(255,255,255,.96);
  border-radius:12px;padding:14px 16px;box-shadow:var(--sh-2);min-width:186px;backdrop-filter:blur(4px);
}
.hero-float .hf-title{font-size:12px;color:var(--ink-3);margin-bottom:8px;}
.hero-float .hf-row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);padding:3px 0;}
.hero-float .hf-row b{font-variant-numeric:tabular-nums;color:var(--brand);font-size:14px;}

/* ---------- 锚点导航 ---------- */
.anchors{padding:32px 0 8px;}
.anchor-bar{display:flex;flex-wrap:wrap;gap:12px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);padding:16px 20px;box-shadow:var(--sh-1);}
.anchor-bar .anchor-label{font-size:13px;color:var(--ink-3);align-self:center;margin-right:4px;}
.anchor-link{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-pill);background:#F6F8FC;border:1px solid var(--line);font-size:13.5px;font-weight:600;color:var(--ink-2);}
.anchor-link i{font-size:12px;color:var(--brand);}
.anchor-link:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand);transform:translateY(-1px);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;}
.section-alt{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:12px;}
.sec-head p{color:var(--ink-2);font-size:15.5px;}
.sec-head .tag{margin-bottom:14px;}

/* ---------- 双列问答卡片 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.qa-card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.qa-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--sh-2);}
.qa-card-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid var(--line-soft);}
.qa-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto;}
.qa-card-head h3{font-size:19px;}
.qa-card-head small{display:block;font-size:12.5px;color:var(--ink-3);font-weight:400;margin-top:2px;}
.qa-item{padding:14px 0;border-bottom:1px dashed var(--line);}
.qa-item:last-child{border-bottom:0;padding-bottom:0;}
.qa-item:first-child{padding-top:0;}
.qa-q{display:flex;gap:10px;font-size:15px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.qa-q i{color:var(--brand);font-size:13px;margin-top:6px;}
.qa-a{font-size:14.6px;color:var(--ink-2);padding-left:23px;}
.qa-a em{font-style:normal;color:var(--brand);font-weight:600;}

/* ---------- 手风琴 FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq .accordion{border:1px solid var(--line-soft);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--sh-1);margin:0;}
.faq .accordion-item{border-bottom:1px solid var(--line-soft);}
.faq .accordion-item:last-child{border-bottom:0;}
.faq .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);background:#fff;
  border:0;border-radius:0;line-height:1.6;
}
.faq .accordion-title:hover{color:var(--brand);background:#FBFCFE;}
.faq .accordion-title::before{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--brand);font-size:12px;order:2;flex:0 0 auto;transition:transform .2s ease;}
.faq .accordion-item.is-active .accordion-title::before{content:"\f068";}
.faq .accordion-title span{order:1;}
.faq .accordion-content{padding:0 24px 22px;background:#FBFCFE;color:var(--ink-2);font-size:14.8px;border:0;}
.faq .accordion-content p+p{margin-top:10px;}

/* ---------- 支持途径 ---------- */
.support-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.support-card{background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;}
.support-card:hover{transform:translateY(-2px);border-color:var(--brand-line);box-shadow:var(--sh-2);}
.support-card img{width:100%;aspect-ratio:3/2;object-fit:cover;}
.support-body{padding:22px 24px 26px;}
.support-body h3{font-size:18px;margin-bottom:8px;}
.support-body p{font-size:14.6px;color:var(--ink-2);margin-bottom:14px;}
.support-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line-soft);padding-top:14px;}
.support-meta a{font-weight:600;}

/* ---------- 数据条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;margin-top:8px;}
.stat-cell{padding:24px 22px;border-right:1px solid var(--line-soft);}
.stat-cell:last-child{border-right:0;}
.stat-cell b{display:block;font-size:26px;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.5px;line-height:1.2;}
.stat-cell span{font-size:13.5px;color:var(--ink-3);}

/* ---------- CTA 色带 ---------- */
.cta-band{background:linear-gradient(120deg,#0F2E6B 0%,#123A82 60%,#0F1B2D 100%);color:#fff;padding:76px 0;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,122,41,.28),transparent 65%);}
.cta-inner{position:relative;display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-marks{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;}
.cta-marks span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.9);}
.cta-marks i{color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F1B2D;color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .brand{color:#fff;}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--brand),#2B63D8);}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:16px;font-size:13.8px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px;}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{color:rgba(255,255,255,.68);font-size:13.8px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:22px;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:var(--brand);color:#fff;border:0;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(27,79,191,.34);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s ease, background-color .2s ease;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-hover);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec:76px;}
  .nav-links{gap:18px;}
  .nav-links a{font-size:14px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line-soft);}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:300px;max-width:86vw;
    background:#fff;flex-direction:column;align-items:flex-start;gap:0;
    padding:96px 24px 32px;margin-left:0;
    box-shadow:-16px 0 40px rgba(16,27,45,.18);
    transform:translateX(102%);transition:transform .28s ease;z-index:80;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links li{width:100%;border-bottom:1px solid var(--line-soft);}
  .nav-links a{display:block;padding:16px 0;font-size:15.5px;}
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--brand);}
  .nav-actions .badge{display:none;}
}
@media (max-width:768px){
  :root{--sec:56px;--gap:20px;}
  .container{padding:0 18px;}
  .topbar-text{display:none;}
  .page-hero{padding:48px 0 44px;}
  .hero-sub{font-size:15.5px;}
  .qa-grid{grid-template-columns:1fr;}
  .support-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-brand{grid-column:1 / -1;}
  .cta-band{padding:56px 0;}
  .cta-actions .btn{width:100%;}
  .anchor-bar{padding:14px 16px;gap:10px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px;}
  .hero-cta .btn{width:100%;}
  .hero-float{position:static;margin-top:12px;box-shadow:var(--sh-1);}
  .stat-strip{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line-soft);}
  .stat-cell:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .btn{padding:12px 20px;}
}