/* roulang page: index */
:root{
  --bg-void:#060B16;
  --bg-deep:#0A1220;
  --bg-band:#0E1830;
  --surface:rgba(255,255,255,0.045);
  --line:rgba(140,170,255,0.16);
  --primary:#2E6BFF;
  --primary-2:#4D86FF;
  --primary-glow:rgba(46,107,255,0.55);
  --accent:#19D3C5;
  --warm:#E4A94E;
  --text-1:#EAF1FF;
  --text-2:#A6B6CE;
  --text-3:#6D7E97;
  --success:#35D07F;
  --danger:#FF6B6B;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 40px rgba(3,8,20,0.55);
  --shadow-hi:0 26px 60px rgba(3,8,20,0.72);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk","HarmonyOS Sans",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:linear-gradient(160deg,var(--bg-void) 0%,var(--bg-deep) 52%,#08101d 100%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:linear-gradient(32deg,rgba(46,107,255,.16) 0%,rgba(46,107,255,.05) 32%,transparent 58%);
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(46,107,255,.42),0 0 0 1px var(--primary)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.site-header,.site-footer,main{position:relative;z-index:1}
.section{padding:104px 0}
.section--band{background:linear-gradient(180deg,rgba(14,24,48,.72),rgba(10,18,32,.2))}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent);font-family:var(--font-num);
  padding:6px 12px;border:1px solid rgba(25,211,197,.28);border-radius:999px;
  background:rgba(25,211,197,.08);margin-bottom:16px;
}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:650;letter-spacing:-.01em}
.section-desc{color:var(--text-2);font-size:15.5px;margin-top:14px;max-width:640px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;font-size:15px;font-weight:600;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;box-shadow:0 0 0 1px var(--primary),0 10px 26px rgba(46,107,255,.32);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px var(--primary-2),0 16px 38px var(--primary-glow);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary-2)}
.btn-ghost:hover{background:rgba(46,107,255,.12);border-color:rgba(46,107,255,.5);color:var(--text-1)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:9px}
.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed}
.link-more{color:var(--text-2);font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:color .2s var(--ease)}
.link-more:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:3px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.08em;font-family:var(--font-num);
  padding:4px 10px;border-radius:999px;background:rgba(25,211,197,.15);color:var(--accent);
}
.badge-warm{background:rgba(228,169,78,.16);color:var(--warm)}
.badge-line{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line)}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,14,28,.82);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(46,107,255,.9),rgba(25,211,197,.75));
  box-shadow:0 0 22px rgba(46,107,255,.42);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto}
.nav-link{
  position:relative;padding:9px 13px;border-radius:9px;
  font-size:15px;color:var(--text-2);transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px var(--primary-glow);
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{position:relative;width:236px}
.search-input{
  width:100%;height:40px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);padding:0 54px 0 38px;font-size:14px;color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-input::placeholder{color:var(--text-3)}
.search-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(46,107,255,.3);background:rgba(46,107,255,.08);outline:none}
.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-3);pointer-events:none}
.kbd{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;background:rgba(255,255,255,.03);
}
.search-panel{
  position:absolute;top:52px;left:0;right:0;z-index:80;
  background:#0C1526;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-hi);padding:12px;display:none;
}
.search-panel.is-open{display:block}
.search-panel .sp-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:8px;font-family:var(--font-num)}
.search-panel .sp-item{display:block;padding:9px 10px;border-radius:9px;font-size:14px;color:var(--text-2)}
.search-panel .sp-item:hover{background:rgba(46,107,255,.12);color:var(--text-1)}
.search-panel .sp-empty{font-size:13.5px;color:var(--text-3);padding:8px 10px}
.nav-quick{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.nav-quick:hover{color:var(--text-1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;inset:72px 0 0 0;background:#070D1A;z-index:70;
  display:none;flex-direction:column;padding:12px 20px 24px;
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer a.m-link{
  display:flex;align-items:center;height:52px;font-size:16px;color:var(--text-1);
  border-bottom:1px solid rgba(140,170,255,.1);
}
.mobile-drawer .drawer-cta{margin-top:auto;display:block;text-align:center}
/* ---------- hero ---------- */
.hero{padding:80px 0 92px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(6,11,22,.72),rgba(6,11,22,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;opacity:.55;
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.08em;
  font-family:var(--font-num);color:var(--accent);
  border:1px solid rgba(25,211,197,.3);background:rgba(25,211,197,.08);
  border-radius:999px;padding:6px 13px;margin-bottom:20px;
}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.02em}
.hero-sub{color:var(--text-2);font-size:17px;line-height:1.7;margin-top:18px;max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.trust-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.trust-row li{
  font-size:13px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;
  padding:6px 13px;background:rgba(255,255,255,.03);
}
.hero-card{
  position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);margin:0;
}
.hero-card img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s var(--ease)}
.hero-card:hover img{transform:scale(1.03)}
.hero-card::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,22,.12),rgba(6,11,22,.78));
}
.glass-panel{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  background:rgba(10,18,32,.62);border:1px solid var(--line);border-radius:14px;
  backdrop-filter:blur(12px);padding:14px 16px;display:grid;gap:10px;
}
.gp-row{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--text-2)}
.gp-row strong{font-family:var(--font-num);color:var(--text-1);font-size:15px}
.hero-beam{
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,107,255,.6),rgba(25,211,197,.5),transparent);
}
/* ---------- metrics ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.metric:hover{border-color:rgba(46,107,255,.55);transform:translateY(-2px)}
.metric strong{display:block;font-family:var(--font-num);font-size:32px;line-height:1.1;color:var(--text-1)}
.metric span{display:block;margin-top:8px;font-size:13.5px;color:var(--text-2)}
/* ---------- features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature{
  display:grid;grid-template-columns:112px 1fr;gap:20px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.feature:hover{border-color:rgba(46,107,255,.55);transform:translateY(-2px);box-shadow:var(--shadow-hi)}
.feature-media{border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.feature-media img{width:100%;aspect-ratio:1/1;object-fit:cover}
.feature h3{font-size:19px;font-weight:600;line-height:1.4}
.feature p{color:var(--text-2);font-size:14.5px;margin-top:10px}
.feature .f-list{margin-top:12px;display:grid;gap:7px}
.feature .f-list li{font-size:13.5px;color:var(--text-2);padding-left:16px;position:relative}
.feature .f-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
/* ---------- ladder ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:end}
.ladder-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.ladder-item:hover{border-color:rgba(46,107,255,.55);transform:translateY(-3px);background:rgba(46,107,255,.08)}
.ladder-item:nth-child(1){min-height:216px}
.ladder-item:nth-child(2){min-height:248px}
.ladder-item:nth-child(3){min-height:280px}
.ladder-item:nth-child(4){min-height:312px;border-color:rgba(228,169,78,.4)}
.ladder-tier{font-family:var(--font-num);font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.ladder-item h3{font-size:19px;font-weight:650;margin-top:10px}
.ladder-item .for{font-size:13px;color:var(--accent);margin-top:8px}
.ladder-item p{font-size:14px;color:var(--text-2);margin-top:12px}
.ladder-item .link-more{margin-top:16px}
/* ---------- compare ---------- */
.compare{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);background:rgba(10,18,32,.55);
}
.compare-head{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr}
.compare-head div{
  padding:20px 18px;font-size:14px;font-weight:600;
  background:linear-gradient(135deg,rgba(46,107,255,.22),rgba(25,211,197,.12));
  border-right:1px solid var(--line);
}
.compare-head div:last-child{border-right:0}
.plan{position:relative;border-right:1px solid var(--line);padding:18px 0}
.plan:last-child{border-right:0}
.plan--featured{
  border:1px solid rgba(46,107,255,.85) !important;border-radius:14px;
  background:rgba(46,107,255,.09);transform:translateY(-6px);
  box-shadow:0 22px 46px rgba(3,8,20,.6);
}
.plan-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  font-size:12px;font-family:var(--font-num);letter-spacing:.08em;
  background:linear-gradient(135deg,var(--primary),var(--accent));color:#04121a;
  padding:4px 12px;border-radius:999px;font-weight:700;
}
.plan .price{font-family:var(--font-num);font-size:30px;line-height:1;color:var(--text-1)}
.plan .price small{font-size:13px;color:var(--text-3);margin-left:4px}
.compare-row{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;border-top:1px solid var(--line)}
.compare-row > div{padding:15px 18px;font-size:14px;color:var(--text-2);border-right:1px solid var(--line)}
.compare-row > div:last-child{border-right:0}
.compare-row .row-name{color:var(--text-1)}
.compare-row .plans{display:contents}
.check{color:var(--accent);font-weight:700}
.void{color:var(--text-3)}
/* ---------- promo band ---------- */
.promo{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:repeating-linear-gradient(135deg,rgba(46,107,255,.07) 0 2px,transparent 2px 12px);
  background-color:rgba(14,24,48,.6);
}
.promo-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:34px 0;flex-wrap:wrap}
.promo-copy h3{font-size:22px;font-weight:650}
.promo-copy p{color:var(--text-2);font-size:14.5px;margin-top:8px}
.countdown{display:flex;gap:10px;margin-top:16px}
.cd-cell{
  min-width:66px;text-align:center;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.04);padding:10px 8px;
}
.cd-cell b{display:block;font-family:var(--font-num);font-size:24px;color:var(--text-1);line-height:1.1}
.cd-cell span{display:block;font-size:11.5px;color:var(--text-3);letter-spacing:.08em;margin-top:4px}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.news-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{border-color:rgba(46,107,255,.6);transform:translateY(-2px);box-shadow:var(--shadow-hi)}
.news-card h3{font-size:19px;font-weight:650;line-height:1.45;margin-top:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{color:var(--text-2);font-size:14.5px;margin-top:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card--lead{padding:26px;display:flex;flex-direction:column}
.news-card--lead h3{font-size:23px}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:18px;
  font-size:13px;color:var(--text-3);font-family:var(--font-num)}
.news-side{display:grid;gap:20px;align-content:start}
.news-side .news-card h3{font-size:16.5px;-webkit-line-clamp:2}
.news-arrow{transition:transform .2s var(--ease);display:inline-block}
.news-card:hover .news-arrow{transform:translateX(4px)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);min-height:220px;
  display:grid;place-items:center;text-align:center;padding:32px 20px;background:rgba(255,255,255,.02);
}
.empty-state .es-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin:0 auto 14px;
  background:rgba(46,107,255,.14);border:1px solid var(--line);color:var(--primary-2);font-family:var(--font-num);
}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:16px}
/* ---------- consult ---------- */
.consult-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:start}
.consult-points{display:grid;gap:14px;margin-top:24px}
.consult-points li{display:flex;gap:12px;font-size:14.5px;color:var(--text-2)}
.consult-points .tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  background:rgba(25,211,197,.16);color:var(--accent);font-size:12px;font-weight:700;margin-top:3px;
}
.form-card{
  background:rgba(10,18,32,.66);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-hi);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:7px}
.input,.select,.textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:10px;
  padding:12px 14px;font-size:14.5px;color:var(--text-1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.textarea{min-height:108px;resize:vertical}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(46,107,255,.28)}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);
  background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.hint{font-size:12.5px;color:var(--text-3);margin-top:14px;line-height:1.6}
.form-card .btn{width:100%;margin-top:6px}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--surface);
  padding:0 20px;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item[open]{border-color:rgba(46,107,255,.5);background:rgba(46,107,255,.07)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:62px;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform .22s var(--ease);
}
.faq-item summary .plus::before,.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--primary-2);border-radius:2px;
}
.faq-item summary .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-item summary .plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item[open] summary .plus{transform:rotate(135deg)}
.faq-body{padding:0 0 20px;color:var(--text-2);font-size:14.5px}
/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(10,18,32,.6),rgba(6,11,22,.95));padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14px;max-width:320px}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.08em;margin-bottom:14px;color:var(--text-1)}
.footer-links li{line-height:34px}
.footer-links a{color:var(--text-2);font-size:14px;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--text-1)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 16px;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-2);cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{border-color:rgba(46,107,255,.55);color:var(--text-1);transform:translateY(-1px)}
/* ---------- responsive ---------- */
@media (max-width:1200px){
  .main-nav{gap:0}
  .nav-link{padding:9px 10px;font-size:14.5px}
  .search-box{width:200px}
}
@media (max-width:1024px){
  .main-nav,.search-box,.nav-quick{display:none}
  .nav-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .ladder{grid-template-columns:repeat(2,1fr);align-items:stretch}
  .ladder-item{min-height:auto !important}
  .news-grid{grid-template-columns:1fr}
  .consult-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .compare-head{display:none}
  .compare{border:0;background:transparent;box-shadow:none}
  .compare-rows{display:grid;gap:18px}
  .plan{display:grid;gap:6px;border:1px solid var(--line);border-radius:14px;padding:22px;background:var(--surface)}
  .plan--featured{transform:none}
  .compare-row{grid-template-columns:1fr;border:1px solid var(--line);border-radius:14px;overflow:hidden}
  .compare-row > div{border-right:0;border-bottom:1px solid var(--line)}
  .compare-row > div:last-child{border-bottom:0}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:64px 0}
  .hero{padding:56px 0 68px}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .promo-inner{flex-direction:column;align-items:flex-start}
  .promo-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:52px 0 24px}
}
@media (max-width:520px){
  body{font-size:15px}
  .container{padding:0 16px}
  .brand-text{font-size:15.5px}
  .hero h1{font-size:clamp(26px,7.6vw,34px)}
  .hero-sub{font-size:15.5px}
  .cd-cell{min-width:56px}
  .form-card{padding:22px}
  .news-card--lead h3{font-size:20px}
}

/* roulang page: article */
:root{
  --bg-void:#060B16;
  --bg-deep:#0A1220;
  --bg-band:#0E1830;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(140,170,255,.3);
  --primary:#2E6BFF;
  --primary-2:#4D86FF;
  --primary-glow:rgba(46,107,255,.55);
  --accent:#19D3C5;
  --warm:#E4A94E;
  --text-1:#EAF1FF;
  --text-2:#A6B6CE;
  --text-3:#6D7E97;
  --success:#35D07F;
  --danger:#FF6B6B;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 18px 40px rgba(3,8,20,.55);
  --shadow-hover:0 26px 56px rgba(3,8,20,.72);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-void);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:linear-gradient(160deg,var(--bg-void) 0%,var(--bg-deep) 46%,var(--bg-void) 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(32deg,rgba(46,107,255,.16) 0%,rgba(46,107,255,0) 58%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid rgba(46,107,255,.7);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.scrolled{
  background:rgba(6,11,22,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{position:relative;display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(46,107,255,.9),rgba(25,211,197,.75));
  box-shadow:0 0 0 1px rgba(140,170,255,.35),0 8px 20px rgba(46,107,255,.35);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-size:17.5px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-right:auto}
.nav-link{
  position:relative;padding:9px 12px;border-radius:9px;font-size:14.5px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:var(--surface)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px var(--primary-glow);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  position:relative;display:flex;align-items:center;gap:8px;height:40px;
  padding:0 10px;min-width:238px;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:rgba(46,107,255,.6);box-shadow:0 0 0 3px rgba(46,107,255,.18)}
.search-box svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--text-3)}
.search-box input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;font-size:14px;color:var(--text-1);
}
.search-box input::placeholder{color:var(--text-3)}
.search-box input:focus{outline:none}
.search-box kbd{
  flex:0 0 auto;font-family:var(--font-num);font-size:11px;color:var(--text-3);
  padding:2px 6px;border:1px solid var(--line);border-radius:6px;background:rgba(255,255,255,.05);
}
.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:90;display:none;
  padding:14px;border:1px solid var(--line);border-radius:14px;background:#0A1220;box-shadow:var(--shadow);
}
.search-panel.open{display:block}
.search-panel .panel-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:10px}
.search-tips{display:flex;flex-wrap:wrap;gap:8px}
.search-tips span{
  font-size:13px;color:var(--text-2);padding:5px 11px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
}
.search-empty{font-size:13.5px;color:var(--text-2);line-height:1.7}
.search-empty b{color:var(--accent);font-weight:600}
.quick-link{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.quick-link:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:3px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border:0;border-radius:var(--radius-sm);
  font-size:14.5px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{
  color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px var(--primary),0 10px 26px rgba(46,107,255,.36);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px var(--primary-2),0 16px 34px rgba(46,107,255,.52);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  color:var(--primary-2);background:transparent;border:1px solid var(--line-strong);
}
.btn-ghost:hover{background:rgba(46,107,255,.12);color:#fff;border-color:rgba(46,107,255,.6)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none}
.mobile-cta{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

/* ---------- breadcrumb band ---------- */
.crumb-band{
  position:relative;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat,var(--bg-band);
  border-bottom:1px solid var(--line);
}
.crumb-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,11,22,.96) 0%,rgba(6,11,22,.78) 60%,rgba(6,11,22,.9) 100%);
}
.crumb-inner{position:relative;padding:22px 0}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--text-3)}
.crumbs a{color:var(--text-2);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--text-1)}
.crumbs .sep{opacity:.5}
.crumbs .current{
  max-width:min(52vw,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2);
}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:48px;align-items:start;
  padding:52px 0 0;
}
.article-main{min-width:0}
.article-head{border-bottom:1px solid var(--line);padding-bottom:26px;margin-bottom:34px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--accent);background:rgba(25,211,197,.14);border:1px solid rgba(25,211,197,.28);
}
.badge.warm{color:var(--warm);background:rgba(228,169,78,.14);border-color:rgba(228,169,78,.3)}
.article-head h1{
  font-size:clamp(26px,3.4vw,42px);line-height:1.25;margin:16px 0 18px;font-weight:700;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;
  font-size:13.5px;color:var(--text-3);font-family:var(--font-num);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7}
.meta-row .cn{font-family:var(--font-cn)}

/* ---------- article body ---------- */
.article-body{font-size:16px;line-height:1.9;color:#D9E3F6;word-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(20px,2.2vw,26px);line-height:1.4;margin:48px 0 18px;padding-left:15px;color:var(--text-1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  box-shadow:0 0 12px var(--primary-glow);
}
.article-body h3{font-size:19px;line-height:1.45;margin:32px 0 12px;color:var(--text-1)}
.article-body h4{font-size:16.5px;margin:24px 0 10px;color:var(--text-1)}
.article-body strong{color:#fff}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(25,211,197,.4);transition:color .2s var(--ease),border-color .2s var(--ease)}
.article-body a:hover{color:#7FF0E6;border-color:#7FF0E6}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px}
.article-body li{margin:.5em 0}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--accent);font-family:var(--font-num)}
.article-body blockquote{
  margin:26px 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:rgba(25,211,197,.07);border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  max-width:100%;height:auto;margin:26px auto;border-radius:12px;border:1px solid var(--line);
}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:rgba(46,107,255,.14);color:var(--text-1);font-weight:600;white-space:nowrap}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body code{
  font-family:var(--font-num);font-size:.92em;padding:2px 6px;border-radius:6px;
  background:rgba(140,170,255,.13);border:1px solid var(--line);
}
.article-body pre{
  margin:24px 0;padding:16px 18px;border:1px solid var(--line);border-radius:12px;
  background:#08101F;overflow-x:auto;
}
.article-body pre code{background:none;border:0;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- empty state ---------- */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius);
  background:var(--surface);padding:48px 28px;text-align:center;
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:rgba(46,107,255,.14);border:1px solid var(--line);
}
.empty-icon svg{width:26px;height:26px;stroke:var(--primary-2)}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:15px;max-width:520px;margin:0 auto 22px}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:96px;display:grid;gap:18px}
.aside-card{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  box-shadow:var(--shadow);padding:20px;
}
.aside-title{font-size:13px;letter-spacing:.1em;color:var(--text-3);margin-bottom:14px;font-weight:600}
.aside-list{display:grid;gap:4px}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--text-2);
  border:1px solid transparent;transition:all .2s var(--ease);
}
.aside-list a:hover{color:#fff;background:rgba(46,107,255,.12);border-color:rgba(46,107,255,.45)}
.aside-list a svg{width:14px;height:14px;stroke:currentColor;opacity:.7;flex:0 0 auto}
.aside-note{font-size:13.5px;color:var(--text-3);line-height:1.75;margin-top:12px}
.aside-metric{
  display:flex;align-items:baseline;gap:8px;font-family:var(--font-num);
  font-size:30px;font-weight:700;color:#fff;line-height:1;
}
.aside-metric small{font-size:13px;color:var(--text-3);font-family:var(--font-cn);font-weight:400}

/* ---------- sections ---------- */
.section{padding:0 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,30px)}
.section-head p{color:var(--text-2);font-size:14.5px;margin-top:8px}
.text-link{font-size:14.5px;color:var(--text-2);transition:color .2s var(--ease)}
.text-link:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:4px}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);box-shadow:var(--shadow);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:rgba(46,107,255,.6);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,0) 45%,rgba(6,11,22,.72) 100%);
}
.card-tag{position:absolute;top:12px;left:12px;z-index:2}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);font-family:var(--font-num);
}
.card-foot .arrow{transition:transform .22s var(--ease);color:var(--primary-2)}
.card:hover .card-foot .arrow{transform:translateX(4px)}

/* ---------- faq ---------- */
.faq-wrap{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:var(--surface);overflow:hidden;transition:border-color .2s var(--ease)}
.faq-item.open{border-color:rgba(46,107,255,.5)}
.faq-q{
  width:100%;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q:hover{color:#fff}
.faq-plus{
  position:relative;width:20px;height:20px;flex:0 0 auto;
  transition:transform .22s var(--ease);
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--primary-2);border-radius:2px;
}
.faq-plus::before{left:9px;top:2px;width:2px;height:16px}
.faq-plus::after{top:9px;left:2px;width:16px;height:2px}
.faq-item.open .faq-plus{transform:rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a p{padding:0 20px 20px;color:var(--text-2);font-size:14.5px;line-height:1.8}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 36px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(120deg,rgba(46,107,255,.2) 0%,rgba(25,211,197,.08) 55%,rgba(10,18,32,.4) 100%);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(21px,2.3vw,28px);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:14.5px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}
.cta-hint{margin-top:14px;font-size:12.5px;color:var(--text-3)}
.back-row{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:26px 0 0;
  border-top:1px solid var(--line);margin-top:52px;
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:8px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,32,.9),rgba(6,11,22,.98));
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-3);line-height:1.8;max-width:330px}
.footer-title{font-size:14px;letter-spacing:.1em;color:var(--text-1);font-weight:600;margin-bottom:14px}
.footer-links{list-style:none;display:grid;gap:0}
.footer-links li{line-height:34px}
.footer-links a{font-size:14px;color:var(--text-3);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--text-1)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 34px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{
  min-height:38px;padding:0 14px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:var(--surface);color:var(--text-2);font-size:13px;
  transition:all .2s var(--ease);
}
.to-top:hover{color:#fff;border-color:rgba(46,107,255,.6);background:rgba(46,107,255,.12)}
.to-top:active{transform:translateY(1px)}

/* ---------- responsive ---------- */
@media (max-width:1400px){
  .container{padding:0 28px}
}
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
}
@media (max-width:1024px){
  .header-inner{height:64px;gap:12px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;bottom:0;z-index:75;
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 18px 32px;overflow-y:auto;
    background:rgba(6,11,22,.98);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
  }
  body.nav-open .main-nav{opacity:1;visibility:visible;transform:none}
  .nav-link{
    display:flex;align-items:center;height:52px;padding:0 14px;font-size:16px;
    border-bottom:1px solid var(--line);border-radius:0;
  }
  .nav-link.active::after{display:none}
  .nav-link.active{color:#fff;background:rgba(46,107,255,.14);border-radius:10px}
  .mobile-cta{display:inline-flex;margin-top:20px;align-self:flex-start}
  .search-box{min-width:44px;width:44px;padding:0;justify-content:center;cursor:pointer}
  .search-box input,.search-box kbd{display:none}
  .search-box.expanded{
    position:absolute;left:18px;right:18px;top:calc(100% + 10px);width:auto;
    justify-content:flex-start;padding:0 12px;background:#0A1220;z-index:95;
  }
  .search-box.expanded input{display:block;flex:1}
  .quick-link{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:52px 0 32px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .article-layout{padding:36px 0 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .section{padding:0 0 64px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .article-body h2{margin-top:38px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:16px}
  .article-head h1{font-size:24px}
  .meta-row{font-size:12.5px;gap:6px 14px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .crumbs .current{max-width:60vw}
}

/* roulang page: category1 */
:root{
  --bg-void:#060B16;
  --bg-deep:#0A1220;
  --bg-band:#0E1830;
  --surface:rgba(255,255,255,0.045);
  --surface-2:rgba(255,255,255,0.075);
  --line:rgba(140,170,255,0.16);
  --line-strong:rgba(140,170,255,0.34);
  --primary:#2E6BFF;
  --primary-2:#4D86FF;
  --primary-glow:rgba(46,107,255,0.55);
  --accent:#19D3C5;
  --accent-soft:rgba(25,211,197,0.15);
  --warm:#E4A94E;
  --text-1:#EAF1FF;
  --text-2:#A6B6CE;
  --text-3:#6D7E97;
  --success:#35D07F;
  --danger:#FF6B6B;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 40px rgba(3,8,20,0.55);
  --shadow-hover:0 24px 52px rgba(3,8,20,0.72);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk","SF Pro Display",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:linear-gradient(160deg,var(--bg-void) 0%,var(--bg-deep) 100%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:linear-gradient(32deg,rgba(46,107,255,0.14) 0%,rgba(46,107,255,0) 52%);
  z-index:0;
}
img{max-width:100%;display:block;border-radius:12px;border:1px solid var(--line);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid rgba(46,107,255,0.7);outline-offset:2px;box-shadow:0 0 0 4px rgba(46,107,255,0.28);border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.container-wide{max-width:1280px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(8,14,26,0.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(46,107,255,0.9),rgba(25,211,197,0.72));
  box-shadow:0 0 0 1px rgba(140,170,255,0.28),0 8px 20px rgba(46,107,255,0.34);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,0.05);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px var(--primary-glow);
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{position:relative;display:flex;align-items:center;}
.command-search svg.ico{position:absolute;left:12px;width:16px;height:16px;stroke:var(--text-3);fill:none;stroke-width:1.7;pointer-events:none;}
.command-search input{
  width:236px;height:40px;
  padding:0 58px 0 34px;
  border-radius:10px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.command-search input::placeholder{color:var(--text-3);}
.command-search input:focus{
  outline:none;
  border-color:var(--primary);
  background:rgba(255,255,255,0.07);
  box-shadow:0 0 0 3px rgba(46,107,255,0.22);
}
.kbd{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);
  font-size:11px;letter-spacing:.06em;
  color:var(--text-3);
  padding:2px 6px;border-radius:6px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
}
.search-panel{
  position:absolute;top:calc(100% + 10px);right:0;width:320px;
  background:rgba(10,18,32,0.97);
  border:1px solid var(--line-strong);
  border-radius:14px;
  box-shadow:var(--shadow);
  padding:12px;
  font-size:13.5px;
  color:var(--text-2);
  z-index:90;
}
.search-panel[hidden]{display:none;}
.search-panel .panel-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:8px;}
.search-panel .panel-item{
  display:block;padding:8px 10px;border-radius:8px;color:var(--text-2);
}
.search-panel .panel-item:hover{background:rgba(46,107,255,0.14);color:var(--text-1);}
.search-panel .empty{color:var(--warm);padding:8px 10px;line-height:1.6;}
.quick-link{font-size:14px;color:var(--text-2);padding:8px 4px;}
.quick-link:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:3px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);
  font-size:14.5px;font-weight:600;
  padding:12px 22px;
  min-height:44px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  box-shadow:0 0 0 1px var(--primary),0 8px 24px rgba(46,107,255,0.34);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px var(--primary),0 12px 32px rgba(46,107,255,0.5);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--primary-2);
}
.btn-ghost:hover{background:rgba(46,107,255,0.12);border-color:var(--primary);color:var(--text-1);transform:translateY(-1px);}
.btn-sm{padding:9px 16px;font-size:13.5px;min-height:40px;}
.link-arrow{color:var(--text-2);font-size:14px;display:inline-flex;align-items:center;gap:6px;}
.link-arrow svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover svg{transform:translateX(3px);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);place-items:center;}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text-1);border-radius:2px;margin:3.6px 0;}
.nav-drawer{
  display:none;
  position:fixed;inset:72px 0 0 0;
  background:rgba(6,11,22,0.98);
  border-top:1px solid var(--line);
  padding:20px 24px 32px;
  z-index:75;
  overflow-y:auto;
}
.nav-drawer.is-open{display:flex;flex-direction:column;}
.nav-drawer a.drawer-link{
  display:flex;align-items:center;
  min-height:52px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.drawer-link.active{color:var(--text-1);}
.nav-drawer .drawer-cta{margin-top:24px;}
.nav-drawer .drawer-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  margin-top:-72px;
  padding:150px 0 84px;
  background-image:linear-gradient(180deg,rgba(6,11,22,0.72) 0%,rgba(6,11,22,0.9) 62%,var(--bg-void) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;left:-12%;right:-12%;bottom:-140px;height:220px;
  background:linear-gradient(90deg,rgba(46,107,255,0),rgba(46,107,255,0.32),rgba(25,211,197,0));
  transform:rotate(-4deg);
  filter:blur(38px);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--text-1);}
.breadcrumb .sep{color:var(--text-3);opacity:.7;}
.breadcrumb .current{color:var(--text-2);}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;
  color:var(--accent);
  background:var(--accent-soft);
  border:1px solid rgba(25,211,197,0.3);
  padding:6px 12px;border-radius:999px;
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
}
.hero .lede{
  margin-top:18px;
  font-size:17px;
  color:var(--text-2);
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.trust-item{
  font-size:13px;color:var(--text-2);
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:999px;
  padding:7px 14px;
}
.glass-card{
  background:linear-gradient(160deg,rgba(255,255,255,0.08),rgba(255,255,255,0.03));
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:22px;
}
.glass-card .gc-head{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:16px;}
.gc-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px dashed var(--line);}
.gc-row:last-child{border-bottom:none;padding-bottom:0;}
.gc-row .label{font-size:14px;color:var(--text-2);}
.gc-row .value{font-family:var(--font-num);font-size:20px;font-weight:600;color:var(--text-1);}
.gc-row .value.accent{color:var(--accent);}
.gc-row .value.warm{color:var(--warm);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;}
.section.tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  font-size:12px;letter-spacing:.1em;color:var(--accent);margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;
  font-weight:650;
}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16px;}
.band{background:linear-gradient(160deg,var(--bg-band),rgba(10,18,32,0.6));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--surface);
  margin-bottom:34px;
}
.chip{
  padding:9px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:all .2s var(--ease);
  min-height:40px;
  display:inline-flex;align-items:center;
}
.chip:hover{color:var(--text-1);background:rgba(255,255,255,0.06);}
.chip.is-active{
  color:var(--text-1);
  border-color:var(--primary);
  background:rgba(46,107,255,0.16);
  box-shadow:0 0 0 1px rgba(46,107,255,0.3),0 6px 18px rgba(46,107,255,0.2);
}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.media-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--shadow);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.media-card:hover{transform:translateY(-2px);border-color:rgba(46,107,255,0.6);box-shadow:var(--shadow-hover);}
.media-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;}
.media-thumb img{width:100%;height:100%;object-fit:cover;border:none;border-radius:0;transition:transform .3s var(--ease);}
.media-card:hover .media-thumb img{transform:scale(1.03);}
.media-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,0) 40%,rgba(6,11,22,0.82) 100%);
}
.thumb-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;letter-spacing:.06em;
  padding:5px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);
  border:1px solid rgba(25,211,197,0.3);
}
.thumb-badge.warm{background:rgba(228,169,78,0.15);color:var(--warm);border-color:rgba(228,169,78,0.32);}
.media-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.media-body h3{font-size:19px;line-height:1.4;font-weight:600;}
.media-body p{color:var(--text-2);font-size:14.5px;line-height:1.7;}
.media-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:8px;}
.media-foot .meta{font-size:13px;color:var(--text-3);font-family:var(--font-num);}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.06em;
  padding:4px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);
}
.tag.blue{background:rgba(46,107,255,0.16);color:var(--primary-2);}
.tag.warm{background:rgba(228,169,78,0.14);color:var(--warm);}

/* ---------- 阶梯 ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:end;}
.step-card{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(170deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));
  padding:24px 22px;
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(46,107,255,0.55);}
.step-card .step-no{
  font-family:var(--font-num);
  font-size:12px;letter-spacing:.12em;color:var(--text-3);margin-bottom:12px;
}
.step-card h3{font-size:17.5px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:14px;color:var(--text-2);line-height:1.7;margin-bottom:16px;}
.step-card .step-1{height:200px;display:flex;flex-direction:column;}
.step-card .step-2{height:238px;display:flex;flex-direction:column;}
.step-card .step-3{height:276px;display:flex;flex-direction:column;}
.step-card .step-4{height:314px;display:flex;flex-direction:column;border-color:rgba(46,107,255,0.6);box-shadow:0 24px 52px rgba(46,107,255,0.24);}
.step-card .bar{height:4px;border-radius:3px;margin-bottom:18px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:.55;}
.step-card .step-2 .bar{opacity:.7;}
.step-card .step-3 .bar{opacity:.85;}
.step-card .step-4 .bar{opacity:1;}
.step-card .link-arrow{margin-top:auto;}

/* ---------- 清单 ---------- */
.checklist-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.check-item{
  display:flex;gap:16px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
}
.check-icon{
  flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(25,211,197,0.14);border:1px solid rgba(25,211,197,0.3);
}
.check-icon svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:2;}
.check-item h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.check-item p{font-size:14.5px;color:var(--text-2);}

/* ---------- 数据条 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{
  padding:26px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(170deg,rgba(255,255,255,0.06),rgba(255,255,255,0.015));
  text-align:left;
}
.stat .num{
  font-family:var(--font-num);
  font-size:34px;font-weight:650;line-height:1.1;
  background:linear-gradient(120deg,var(--primary-2),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat .num small{font-size:14px;font-weight:500;color:var(--text-2);-webkit-text-fill-color:var(--text-2);margin-left:4px;}
.stat .desc{margin-top:10px;font-size:14px;color:var(--text-2);}

/* ---------- 双列图文 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.split img{border-radius:var(--radius);box-shadow:var(--shadow);}
.split h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:650;margin-bottom:18px;}
.split p{color:var(--text-2);}
.point-list{margin-top:22px;display:grid;gap:14px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.point-list li span.dot{
  flex:none;width:8px;height:8px;border-radius:50%;margin-top:9px;
  background:var(--accent);box-shadow:0 0 10px rgba(25,211,197,0.7);
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--surface);
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.is-open{border-color:rgba(46,107,255,0.55);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:60px;
  padding:16px 22px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-q .plus{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform .22s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--primary-2);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-q .plus{transform:rotate(135deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s var(--ease);
}
.faq-a p{padding:0 22px 20px;color:var(--text-2);font-size:15px;}

/* ---------- CTA / 表单 ---------- */
.cta-band{
  position:relative;
  border:1px solid var(--line-strong);
  border-radius:20px;
  padding:44px;
  background-image:linear-gradient(120deg,rgba(6,11,22,0.9),rgba(6,11,22,0.72)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(46,107,255,0.06) 0 2px,transparent 2px 12px);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start;}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:650;margin-bottom:16px;}
.cta-inner p{color:var(--text-2);font-size:15px;}
.form-card{
  background:rgba(10,18,32,0.78);
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  padding:26px;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:14.5px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(46,107,255,0.22);
}
.field .err{display:none;font-size:12.5px;color:var(--danger);margin-top:6px;}
.field.has-error input,.field.has-error select{border-color:var(--danger);}
.field.has-error .err{display:block;}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px;line-height:1.6;}
.form-submit{width:100%;margin-top:6px;}
.form-ok{
  display:none;
  margin-top:14px;
  font-size:13.5px;
  color:var(--success);
  border:1px solid rgba(53,208,127,0.35);
  background:rgba(53,208,127,0.1);
  border-radius:10px;
  padding:10px 14px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:var(--bg-band);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--text-2);font-size:14px;max-width:340px;}
.footer-title{
  font-size:14px;letter-spacing:.08em;color:var(--text-1);
  margin-bottom:16px;font-weight:600;
}
.footer-links li{line-height:34px;}
.footer-links a{color:var(--text-2);font-size:14px;}
.footer-links a:hover{color:var(--text-1);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{
  font-size:13px;color:var(--text-2);
  border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;min-height:40px;
  transition:all .2s var(--ease);
}
.to-top:hover{color:var(--text-1);border-color:var(--primary);background:rgba(46,107,255,0.12);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:grid;}
  .command-search input{width:160px;}
  .quick-link{display:none;}
  .hero{margin-top:-72px;padding:132px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .ladder{grid-template-columns:repeat(2,1fr);gap:18px;}
  .step-card .step-1,.step-card .step-2,.step-card .step-3,.step-card .step-4{height:auto;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:60px 0;}
  .section.tight{padding:48px 0;}
  .card-grid{grid-template-columns:1fr;}
  .checklist-grid{grid-template-columns:1fr;}
  .ladder{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .cta-band{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .command-search{display:none;}
  .nav-drawer .drawer-search{display:block;margin-bottom:18px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero{padding:118px 0 56px;}
  .hero .lede{font-size:15.5px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat .num{font-size:28px;}
  .brand-text{font-size:15.5px;}
  .media-body{padding:18px;}
  .faq-q{font-size:15px;padding:14px 18px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (min-width:1201px){
  .drawer-search{display:none;}
}

/* roulang page: category3 */
:root{
  --bg-void:#060B16;
  --bg-deep:#0A1220;
  --bg-band:#0E1830;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(140,170,255,.32);
  --primary:#2E6BFF;
  --primary-2:#4D86FF;
  --primary-glow:rgba(46,107,255,.55);
  --accent:#19D3C5;
  --warm:#E4A94E;
  --text-1:#EAF1FF;
  --text-2:#A6B6CE;
  --text-3:#6D7E97;
  --success:#35D07F;
  --danger:#FF6B6B;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 40px rgba(3,8,20,.55);
  --shadow-hover:0 26px 54px rgba(3,8,20,.72);
  --max:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-void);
  background-image:linear-gradient(160deg,#060B16 0%,#0A1220 58%,#08101F 100%);
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:linear-gradient(32deg,rgba(46,107,255,.15) 0%,rgba(46,107,255,0) 44%);
  z-index:0;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:650}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{color:var(--text-2)}
:focus-visible{outline:2px solid rgba(46,107,255,.55);outline-offset:3px;border-radius:6px}
.num{font-family:Inter,"Space Grotesk","PingFang SC",system-ui,sans-serif;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,14,28,.82);
  border-bottom-color:var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary) 0%,#1B3EA8 100%);
  box-shadow:0 0 0 1px rgba(46,107,255,.6),0 8px 20px rgba(46,107,255,.35);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text-1)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  position:relative;
  padding:8px 12px;font-size:14.5px;color:var(--text-2);border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px var(--primary-glow);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative;display:flex;align-items:center;height:40px;width:250px;padding:0 10px 0 12px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.04);transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box:focus-within{border-color:rgba(46,107,255,.7);box-shadow:0 0 0 3px rgba(46,107,255,.18)}
.search-box svg{width:16px;height:16px;flex-shrink:0;stroke:var(--text-3)}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text-1);margin-left:8px}
.search-box input::placeholder{color:var(--text-3)}
.search-box kbd{
  font-family:Inter,system-ui,sans-serif;font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 5px;background:rgba(255,255,255,.05);flex-shrink:0;
}
.search-panel{
  position:absolute;top:52px;left:0;right:0;z-index:70;
  background:rgba(10,18,34,.97);border:1px solid var(--line-strong);border-radius:12px;
  box-shadow:var(--shadow);padding:8px;max-height:320px;overflow:auto;
}
.search-panel[hidden]{display:none}
.search-panel a{display:block;padding:9px 10px;border-radius:8px;font-size:14px;color:var(--text-2)}
.search-panel a:hover{background:rgba(46,107,255,.14);color:var(--text-1)}
.search-empty{padding:10px;font-size:13.5px;color:var(--text-3)}
.quick-link{font-size:14px;color:var(--text-2);white-space:nowrap}
.quick-link:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:3px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;padding:12px 22px;min-height:44px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 100%);
  box-shadow:0 0 0 1px rgba(46,107,255,.9),0 8px 22px rgba(46,107,255,.34);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(46,107,255,1),0 14px 30px rgba(46,107,255,.5)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--primary-2);box-shadow:inset 0 0 0 1px rgba(46,107,255,.6)}
.btn-ghost:hover{background:rgba(46,107,255,.12);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
.btn-block{width:100%}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;position:relative;
}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);width:18px;height:1.6px;background:var(--text-1);border-radius:2px;
}
.menu-toggle span{top:50%;margin-top:-1px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(6,11,22,.98);
  display:flex;flex-direction:column;padding:20px 22px 26px;
}
.drawer[hidden]{display:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text-1);font-size:20px;cursor:pointer}
.drawer-nav{margin-top:8px;flex:1;overflow:auto}
.drawer-nav a{display:flex;align-items:center;height:52px;border-bottom:1px solid rgba(140,170,255,.1);font-size:16px;color:var(--text-2)}
.drawer-nav a.active,.drawer-nav a:hover{color:var(--text-1)}
.drawer-cta{margin-top:18px}

/* ---------- hero ---------- */
.hero{
  position:relative;margin-top:-72px;padding:150px 0 92px;
  background-image:linear-gradient(160deg,rgba(6,11,22,.92) 0%,rgba(8,16,32,.86) 50%,rgba(6,11,22,.96) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,107,255,.7),rgba(25,211,197,.5),transparent);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a:hover{color:var(--text-1)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{font-size:17px;line-height:1.75;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-row span{
  font-size:12.5px;letter-spacing:.06em;color:var(--text-2);
  padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.035);
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:18px;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,11,22,0) 45%,rgba(6,11,22,.72) 100%);
}
.glass-tags{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  display:flex;flex-wrap:wrap;gap:8px;
}
.glass-tags span{
  font-size:12.5px;padding:6px 11px;border-radius:999px;
  background:rgba(10,18,34,.72);border:1px solid var(--line-strong);color:var(--text-1);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}

/* ---------- sections ---------- */
.section{padding:96px 0;position:relative;z-index:1}
.section.band{background:linear-gradient(180deg,rgba(14,24,48,.72),rgba(10,18,32,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);background:rgba(25,211,197,.12);border:1px solid rgba(25,211,197,.28);
  padding:5px 11px;border-radius:999px;margin-bottom:16px;
}
.sec-head h2{margin-bottom:14px}
.sec-sub{font-size:16px}

/* defense cards */
.defense-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.defense-card{
  position:relative;padding:28px;border-radius:var(--radius);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  box-shadow:var(--shadow);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.defense-card::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);border-radius:var(--radius) var(--radius) 0 0}
.defense-card:hover{transform:translateY(-2px);border-color:rgba(46,107,255,.6);box-shadow:var(--shadow-hover)}
.defense-num{
  font-family:Inter,system-ui,sans-serif;font-size:34px;font-weight:700;line-height:1;
  color:rgba(46,107,255,.65);margin-bottom:14px;letter-spacing:-.02em;
}
.defense-card h3{margin-bottom:10px}
.defense-card p{font-size:15px;margin-bottom:14px}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:12px;letter-spacing:.05em;padding:4px 10px;border-radius:999px;
  background:rgba(25,211,197,.13);color:var(--accent);border:1px solid rgba(25,211,197,.24);
}
.tag.warm{background:rgba(228,169,78,.14);color:var(--warm);border-color:rgba(228,169,78,.3)}

/* scene */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.scene-grid img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.dot-list{margin-top:18px;display:grid;gap:12px}
.dot-list li{position:relative;padding-left:22px;color:var(--text-2);font-size:15.5px}
.dot-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(25,211,197,.7);
}
.scene-block h3{margin-bottom:8px}
.scene-block + .scene-block{margin-top:30px}
.scene-rev{order:2}

/* timeline */
.timeline{position:relative;padding-left:44px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(46,107,255,.65),rgba(25,211,197,.5),rgba(140,170,255,.12));
}
.tl-item{position:relative;margin-bottom:28px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-41px;top:34px;width:12px;height:12px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(25,211,197,.14),0 0 20px rgba(25,211,197,.65);
}
.tl-card{
  display:flex;gap:26px;align-items:center;padding:24px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(255,255,255,.04);box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.tl-card:hover{transform:translateY(-2px);border-color:rgba(46,107,255,.6);box-shadow:var(--shadow-hover)}
.tl-item:nth-child(even) .tl-card{flex-direction:row-reverse}
.tl-text{flex:1 1 58%;min-width:0}
.tl-media{flex:1 1 42%;min-width:0}
.tl-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line);border-radius:12px}
.tl-step{font-size:12px;letter-spacing:.12em;color:var(--primary-2);font-weight:600}
.tl-text h3{margin:8px 0 10px}
.tl-text p{font-size:15px}
.tl-text .dot-list{margin-top:14px;gap:8px}
.tl-text .dot-list li{font-size:14.5px}

/* ledger table */
.ledger-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:rgba(255,255,255,.03)}
.ledger-head{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:16px;padding:16px 22px;
  background:linear-gradient(135deg,rgba(46,107,255,.35),rgba(25,211,197,.18));
  font-size:13.5px;font-weight:600;letter-spacing:.04em;color:var(--text-1);
}
.ledger-row{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:16px;padding:16px 22px;
  border-top:1px solid rgba(140,170,255,.12);font-size:14.5px;color:var(--text-2);
  transition:background .2s var(--ease);
}
.ledger-row:hover{background:rgba(46,107,255,.07)}
.ledger-row strong{color:var(--text-1);font-weight:600}
.state{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;padding:3px 9px;border-radius:999px;background:rgba(53,208,127,.14);color:var(--success);border:1px solid rgba(53,208,127,.3)}
.state.pending{background:rgba(228,169,78,.14);color:var(--warm);border-color:rgba(228,169,78,.3)}
.ledger-note{margin-top:18px;font-size:14px;color:var(--text-3)}

/* faq */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.035);transition:border-color .2s var(--ease),background .2s var(--ease)}
.faq-item[open]{border-color:rgba(46,107,255,.55);background:rgba(46,107,255,.07)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 20px;font-size:16px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary-2);border-radius:2px;transition:transform .22s var(--ease)}
.faq-icon::before{width:14px;height:1.8px;transform:translate(-50%,-50%)}
.faq-icon::after{width:1.8px;height:14px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{padding:0 20px 20px;font-size:15px;color:var(--text-2)}

/* cta + form */
.cta-band{
  position:relative;border-radius:20px;border:1px solid var(--line-strong);overflow:hidden;
  background:linear-gradient(135deg,rgba(46,107,255,.28),rgba(25,211,197,.14)),rgba(10,18,34,.9);
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:10px}
.cta-band p{max-width:560px;font-size:15.5px}
.consult-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.form-card{border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.045);box-shadow:var(--shadow);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  background:rgba(6,11,22,.6);color:var(--text-1);outline:none;font-size:14.5px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,107,255,.22)}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:12px;line-height:1.6}
.form-msg{margin-top:12px;font-size:14px;color:var(--success);display:none}
.form-msg.show{display:block}

/* ---------- footer ---------- */
.site-footer{
  margin-top:40px;background:#080F1E;border-top:1px solid var(--line);position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:64px 0 40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;max-width:320px;line-height:1.8}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px}
.footer-links li{line-height:34px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:20px 0 32px;border-top:1px solid rgba(140,170,255,.12);font-size:13px;color:var(--text-3);
}
.to-top{
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-2);
  border-radius:999px;padding:8px 16px;font-size:13px;cursor:pointer;min-height:38px;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.to-top:hover{color:var(--text-1);border-color:var(--line-strong);background:rgba(46,107,255,.14)}

@media (max-width:1200px){
  .hero-grid{gap:34px}
  .ledger-head,.ledger-row{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:12px}
}
@media (max-width:1024px){
  .main-nav,.search-box,.quick-link{display:none}
  .menu-toggle{display:block}
  .hero{margin-top:-72px;padding:132px 0 76px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .defense-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr;gap:28px}
  .scene-rev{order:0}
  .consult-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:64px 0}
  .tl-card,.tl-item:nth-child(even) .tl-card{flex-direction:column;align-items:stretch}
  .tl-media{order:-1}
  .ledger-head{display:none}
  .ledger-row{grid-template-columns:1fr 1fr;gap:10px 14px}
  .cta-band{padding:30px;flex-direction:column;align-items:flex-start}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  h1{font-size:clamp(26px,7vw,32px)}
  .defense-card,.form-card,.tl-card{padding:20px}
  .hero{padding:118px 0 60px}
  .ledger-row{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --bg-void:#060B16;
  --bg-deep:#0A1220;
  --bg-band:#0E1830;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --line:rgba(140,170,255,.16);
  --line-strong:rgba(140,170,255,.32);
  --primary:#2E6BFF;
  --primary-2:#4D86FF;
  --primary-glow:rgba(46,107,255,.55);
  --accent:#19D3C5;
  --warm:#E4A94E;
  --text-1:#EAF1FF;
  --text-2:#A6B6CE;
  --text-3:#6D7E97;
  --success:#35D07F;
  --danger:#FF6B6B;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 18px 40px rgba(3,8,20,.55);
  --shadow-hover:0 24px 54px rgba(3,8,20,.7);
  --ease:cubic-bezier(.2,.7,.3,1);
  --num-font:"Inter","Space Grotesk","HarmonyOS Sans",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:
    linear-gradient(160deg,var(--bg-void) 0%,var(--bg-deep) 62%,#0B1526 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:linear-gradient(32deg,rgba(46,107,255,.16) 0%,rgba(46,107,255,0) 46%);
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid rgba(46,107,255,.55);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.section{padding:88px 0;position:relative;z-index:1;}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.scrolled{
  background:rgba(6,11,22,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:74px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#1B4AD8);
  box-shadow:0 0 0 1px rgba(46,107,255,.6),0 8px 18px rgba(46,107,255,.32);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;
  padding:8px 13px;
  border-radius:9px;
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:var(--surface);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 10px var(--primary-glow);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  position:relative;
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 10px;
  width:236px;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  background:var(--surface);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{border-color:rgba(46,107,255,.6);box-shadow:0 0 0 3px rgba(46,107,255,.18);}
.nav-search svg{width:16px;height:16px;stroke:var(--text-3);fill:none;stroke-width:1.8;flex-shrink:0;}
.nav-search input{
  flex:1;min-width:0;height:100%;
  background:transparent;border:none;outline:none;
  font-size:14px;color:var(--text-1);
}
.nav-search input::placeholder{color:var(--text-3);}
.kbd{
  font-family:var(--num-font);font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:5px;padding:1px 5px;flex-shrink:0;
}
.search-panel{
  position:absolute;top:calc(100% + 8px);left:0;right:0;
  background:#0A1220;border:1px solid var(--line);border-radius:14px;
  padding:12px;box-shadow:var(--shadow);z-index:80;
}
.search-panel[hidden]{display:none;}
.search-panel-head{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:8px;}
.search-suggest li a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-2);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.search-suggest li a:hover{background:var(--surface);color:var(--text-1);}
.search-empty{padding:10px;font-size:13.5px;color:var(--text-3);}
.search-empty[hidden]{display:none;}
.nav-quick{font-size:14px;color:var(--text-2);white-space:nowrap;transition:color .2s var(--ease);}
.nav-quick:hover{color:var(--text-1);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);place-items:center;
}
.menu-toggle svg{width:18px;height:18px;stroke:var(--text-1);stroke-width:1.8;fill:none;}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),filter .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff;
  box-shadow:0 0 0 1px var(--primary),0 10px 26px rgba(46,107,255,.34);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px var(--primary),0 14px 34px rgba(46,107,255,.5);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--primary-2);
  box-shadow:inset 0 0 0 1px rgba(46,107,255,.55);
}
.btn-ghost:hover{background:rgba(46,107,255,.12);color:var(--text-1);}
.btn-sm{height:38px;padding:0 15px;font-size:13.5px;}
.btn-block{width:100%;}
.nav-cta{height:40px;padding:0 16px;font-size:14px;}

/* ============ Drawer ============ */
.drawer{
  position:fixed;inset:0;z-index:200;
  background:rgba(6,11,22,.98);
  display:none;flex-direction:column;
  padding:20px;
}
.drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--text-1);font-size:22px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;padding:0 14px;
  border-radius:12px;font-size:16px;color:var(--text-2);
  border:1px solid transparent;
}
.drawer-nav a.active{color:var(--text-1);background:var(--surface);border-color:var(--line);}
.drawer-foot{padding-top:16px;border-top:1px solid var(--line);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:104px 0 76px;
  background-image:
    linear-gradient(180deg,rgba(6,11,22,.72) 0%,rgba(6,11,22,.9) 62%,var(--bg-deep) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,107,255,.6),transparent);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--text-1);}
.breadcrumb .current{color:var(--text-1);}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;
  background:rgba(25,211,197,.15);color:var(--accent);
  border:1px solid rgba(25,211,197,.28);
}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent);}
.page-hero h1{
  margin:18px 0 16px;
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.15;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:15em;
}
.hero-lead{max-width:44em;color:var(--text-2);font-size:clamp(15px,1.4vw,17px);line-height:1.8;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  margin-top:38px;max-width:760px;
}
.stat{
  padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.stat-num{font-family:var(--num-font);font-size:26px;font-weight:700;color:var(--text-1);letter-spacing:-.01em;}
.stat-num span{font-size:13px;color:var(--accent);margin-left:4px;font-weight:600;}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px;}

/* ============ Layout with anchor ============ */
.layout-side{display:grid;grid-template-columns:262px minmax(0,1fr);gap:48px;align-items:start;}
.anchor-sticky{position:sticky;top:104px;display:grid;gap:16px;}
.anchor-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);padding:16px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.anchor-title{font-size:12px;letter-spacing:.1em;color:var(--text-3);margin-bottom:10px;padding-left:12px;}
.anchor-nav{display:grid;gap:4px;}
.anchor-link{
  display:block;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-link:hover{color:var(--text-1);background:var(--surface-2);}
.anchor-link.active{
  color:var(--text-1);
  background:rgba(46,107,255,.14);
  border-left-color:var(--primary);
}
.anchor-cta{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(46,107,255,.16),rgba(25,211,197,.06));
  padding:18px;
}
.anchor-cta p{font-size:13.5px;color:var(--text-2);margin-bottom:14px;line-height:1.7;}

/* ============ Content blocks ============ */
.content-col{display:grid;gap:72px;}
.content-block{scroll-margin-top:110px;}
.block-head{margin-bottom:24px;}
.block-head h2{
  font-size:clamp(22px,2.5vw,32px);line-height:1.26;font-weight:650;letter-spacing:-.01em;
}
.block-head h2::after{
  content:"";display:block;width:54px;height:3px;border-radius:3px;margin-top:14px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.block-head p{margin-top:14px;color:var(--text-2);max-width:52em;}
.content-block h3{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.content-block p{color:var(--text-2);}
.content-block p + p{margin-top:12px;}

.board-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:12px 16px;border:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;
  background:var(--bg-band);
  font-size:13.5px;color:var(--text-3);
}
.board-bar .live-dot{display:inline-flex;align-items:center;gap:8px;color:var(--accent);}
.board-bar .live-dot i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);display:inline-block;}
.board{display:grid;gap:10px;padding:16px;border:1px solid var(--line);border-top:none;border-radius:0 0 var(--radius) var(--radius);background:var(--surface);}
.match-row{
  display:grid;grid-template-columns:142px minmax(0,1fr) 132px;
  align-items:center;gap:16px;
  padding:14px 16px;border:1px solid var(--line);border-radius:12px;
  background:rgba(10,18,32,.6);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.match-row:hover{border-color:rgba(46,107,255,.6);transform:translateY(-2px);box-shadow:var(--shadow);}
.match-meta{display:flex;flex-direction:column;gap:2px;}
.league{font-size:13px;color:var(--text-2);}
.kickoff{font-family:var(--num-font);font-size:12.5px;color:var(--text-3);}
.match-teams{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;min-width:0;}
.team{font-size:15px;color:var(--text-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.team.home{text-align:right;}
.team.away{text-align:left;}
.score{font-family:var(--num-font);font-size:20px;font-weight:700;color:var(--text-1);letter-spacing:.02em;padding:0 6px;}
.status{
  justify-self:end;
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;white-space:nowrap;
}
.status-live{background:rgba(25,211,197,.15);color:var(--accent);border:1px solid rgba(25,211,197,.3);}
.status-soon{background:rgba(228,169,78,.14);color:var(--warm);border:1px solid rgba(228,169,78,.3);}
.status-done{background:rgba(166,182,206,.12);color:var(--text-2);border:1px solid var(--line);}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.dim-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  background:var(--surface);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.dim-card:hover{border-color:rgba(46,107,255,.6);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.dim-ico{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;margin-bottom:14px;
  background:rgba(46,107,255,.16);border:1px solid rgba(46,107,255,.32);
}
.dim-ico svg{width:18px;height:18px;stroke:var(--primary-2);fill:none;stroke-width:1.8;}
.dim-card ul{margin-top:12px;display:grid;gap:6px;}
.dim-card ul li{font-size:14px;color:var(--text-2);padding-left:16px;position:relative;}
.dim-card ul li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--accent);}

.figure-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),var(--shadow);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease);}
.figure-card:hover img{transform:scale(1.03);}
.figure-cap{padding:16px 18px;border-top:1px solid var(--line);font-size:13.5px;color:var(--text-3);}

.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:34px;align-items:center;}
.check-list{display:grid;gap:14px;margin-top:20px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;}
.check-list svg{width:20px;height:20px;flex-shrink:0;margin-top:3px;stroke:var(--success);fill:none;stroke-width:2;}
.check-list strong{display:block;font-size:15.5px;color:var(--text-1);font-weight:600;}
.check-list span{font-size:14px;color:var(--text-2);}

.spec-table{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);
}
.spec-row{
  display:grid;grid-template-columns:190px minmax(0,1fr);gap:18px;
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.spec-row:last-child{border-bottom:none;}
.spec-row .k{font-size:14px;color:var(--text-1);font-weight:600;}
.spec-row .v{font-size:14px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--surface);
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-item[open]{border-color:rgba(46,107,255,.55);background:rgba(46,107,255,.07);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:0 20px;
  font-size:15.5px;color:var(--text-1);font-weight:500;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--num-font);font-size:20px;color:var(--primary-2);
  transition:transform .22s var(--ease);flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 20px 18px;font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 36px;
  background:
    repeating-linear-gradient(135deg,rgba(255,255,255,.035) 0 2px,rgba(255,255,255,0) 2px 12px),
    linear-gradient(120deg,rgba(46,107,255,.2),rgba(25,211,197,.08) 70%);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band h3{font-size:clamp(19px,2vw,24px);font-weight:650;line-height:1.35;}
.cta-band p{font-size:14.5px;color:var(--text-2);margin-top:8px;max-width:40em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ Footer ============ */
.site-footer{
  margin-top:96px;
  background:#070D1A;
  border-top:1px solid var(--line);
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-3);max-width:30em;line-height:1.8;}
.footer-title{font-size:14px;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px;font-weight:600;}
.footer-links li{line-height:34px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--text-1);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 30px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{
  height:38px;padding:0 16px;border-radius:9px;
  border:1px solid var(--line);background:var(--surface);
  font-size:13px;color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{color:var(--text-1);border-color:var(--line-strong);transform:translateY(-1px);}

/* ============ Responsive ============ */
@media (max-width:1400px){
  .container{max-width:1160px;}
}
@media (max-width:1200px){
  .layout-side{grid-template-columns:216px minmax(0,1fr);gap:34px;}
  .nav-search{width:200px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-search{display:none;}
  .menu-toggle{display:grid;}
  .nav-inner{height:68px;}
  .section{padding:72px 0;}
  .page-hero{padding:78px 0 60px;}
  .layout-side{grid-template-columns:minmax(0,1fr);}
  .anchor-sticky{position:static;}
  .anchor-nav{grid-auto-flow:column;grid-auto-columns:max-content;overflow-x:auto;padding-bottom:4px;}
  .anchor-title{display:none;}
  .anchor-link{border-left:none;border-bottom:2px solid transparent;white-space:nowrap;}
  .anchor-link.active{border-left:none;border-bottom-color:var(--primary);border-radius:10px 10px 0 0;}
  .split{grid-template-columns:minmax(0,1fr);gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .content-col{gap:56px;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .grid-2{grid-template-columns:minmax(0,1fr);}
  .match-row{grid-template-columns:minmax(0,1fr);gap:10px;}
  .match-meta{flex-direction:row;align-items:center;gap:10px;}
  .team.home{text-align:left;}
  .status{justify-self:start;}
  .spec-row{grid-template-columns:minmax(0,1fr);gap:6px;}
  .cta-band{padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .nav-quick{display:none;}
  .to-top{width:100%;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .page-hero{padding:64px 0 50px;}
  .hero-stats{margin-top:28px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:48px 0 30px;}
  .btn{width:100%;}
  .nav-cta{width:auto;}
  .score{font-size:18px;}
}

/* roulang page: category4 */
:root{
  --bg-void:#060B16;
  --bg-deep:#0A1220;
  --bg-band:#0E1830;
  --surface:rgba(255,255,255,0.045);
  --surface-2:rgba(255,255,255,0.075);
  --line:rgba(140,170,255,0.16);
  --line-strong:rgba(140,170,255,0.34);
  --primary:#2E6BFF;
  --primary-2:#4D86FF;
  --primary-glow:rgba(46,107,255,0.55);
  --accent:#19D3C5;
  --warm:#E4A94E;
  --text-1:#EAF1FF;
  --text-2:#A6B6CE;
  --text-3:#6D7E97;
  --success:#35D07F;
  --danger:#FF6B6B;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 18px 40px rgba(3,8,20,0.55);
  --shadow-lg:0 26px 60px rgba(3,8,20,0.72);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Space Grotesk","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:
    linear-gradient(160deg,var(--bg-void) 0%,var(--bg-deep) 58%,#08101F 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:linear-gradient(32deg,rgba(46,107,255,0.14) 0%,rgba(46,107,255,0.04) 34%,rgba(46,107,255,0) 62%);
  z-index:0;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:var(--text-2);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--text-1)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:.01em}
p{margin:0}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:none;box-shadow:0 0 0 2px rgba(46,107,255,.4),0 0 0 1px var(--primary);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-family:var(--font-num);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.7}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.25}
.section-desc{color:var(--text-2);font-size:15px;margin-top:14px;max-width:680px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
}
.site-header.scrolled{
  background:rgba(8,14,28,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:var(--nav-h);
  display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary) 0%,#7A4BFF 100%);
  box-shadow:0 0 0 1px rgba(255,255,255,.08),0 8px 20px rgba(46,107,255,.36);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:650;color:#fff;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;
  padding:9px 13px;border-radius:9px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:var(--surface)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 10px var(--primary-glow);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;
  height:40px;padding:0 10px 0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  min-width:250px;
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search:focus-within{border-color:var(--primary);background:rgba(46,107,255,.08);box-shadow:0 0 0 3px rgba(46,107,255,.16)}
.command-search i{color:var(--text-3);font-size:13px}
.command-search input{
  flex:1;min-width:0;background:transparent;border:0;color:var(--text-1);height:100%;
  font-size:14px;
}
.command-search input::placeholder{color:var(--text-3)}
.command-search input:focus{outline:none;box-shadow:none}
.kbd{
  font-family:var(--font-num);font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;background:rgba(255,255,255,.03);
  white-space:nowrap;
}
.search-panel{
  position:absolute;top:50px;left:0;right:0;
  background:rgba(10,17,32,.97);
  border:1px solid var(--line-strong);border-radius:14px;
  box-shadow:var(--shadow-lg);
  padding:10px;display:none;z-index:90;
}
.search-panel.open{display:block}
.search-panel .panel-label{font-size:11.5px;letter-spacing:.1em;color:var(--text-3);padding:4px 8px 8px;text-transform:uppercase}
.search-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:9px 10px;border-radius:9px;font-size:14px;color:var(--text-2);
}
.search-panel a:hover{background:var(--surface);color:#fff}
.search-empty{padding:14px 10px;font-size:13.5px;color:var(--text-3)}
.quick-link{font-size:14px;color:var(--text-2)}
.quick-link:hover{color:var(--text-1);text-decoration:underline;text-underline-offset:3px}
.menu-toggle{
  display:none;width:42px;height:40px;border-radius:10px;
  background:var(--surface);border:1px solid var(--line);color:var(--text-1);
  align-items:center;justify-content:center;cursor:pointer;
}
.mobile-drawer{
  display:none;position:fixed;inset:var(--nav-h) 0 0 0;z-index:79;
  background:rgba(6,11,22,.98);backdrop-filter:blur(12px);
  padding:18px 20px 28px;flex-direction:column;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{display:flex}
.mobile-drawer a.drawer-link{
  height:52px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);font-size:16px;color:var(--text-1);
}
.mobile-drawer a.drawer-link.active{color:var(--accent)}
.mobile-drawer .drawer-foot{margin-top:auto;display:grid;gap:12px}
.mobile-drawer .drawer-search{
  height:46px;display:flex;align-items:center;gap:10px;padding:0 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
}
.mobile-drawer .drawer-search input{flex:1;background:transparent;border:0;color:var(--text-1)}
.mobile-drawer .drawer-search input:focus{outline:none;box-shadow:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:10px;
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 100%);
  color:#fff;box-shadow:0 0 0 1px var(--primary),0 10px 26px rgba(46,107,255,.34);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px var(--primary),0 14px 34px rgba(46,107,255,.5)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--primary-2)}
.btn-ghost:hover{background:rgba(46,107,255,.12);border-color:var(--primary);color:#fff}
.btn-sm{min-height:38px;padding:0 16px;font-size:13.5px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--primary-2)}
.link-arrow i{transition:transform .2s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:calc(var(--nav-h) + 74px) 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(6,11,22,.94) 0%,rgba(6,11,22,.78) 46%,rgba(6,11,22,.52) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.35) 0%,rgba(6,11,22,.9) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb i{font-size:10px;opacity:.7}
.hero-title{
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:700;
  letter-spacing:.005em;
}
.hero-title span{
  background:linear-gradient(100deg,var(--primary-2),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.tag i{color:var(--accent);font-size:11px}

/* ---------- lead ---------- */
.lead-block{
  padding:56px 0 8px;
}
.lead-text{
  font-size:17px;line-height:1.9;color:var(--text-2);max-width:860px;
  padding-left:20px;border-left:3px solid var(--primary);
}
.lead-text strong{color:var(--text-1);font-weight:650}

/* ---------- compare cards ---------- */
.compare-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;
  align-items:stretch;
}
.compare-card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px 28px;
  box-shadow:var(--shadow);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.compare-card::before{
  content:"";position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.34),transparent);
}
.compare-card:hover{transform:translateY(-2px);border-color:rgba(46,107,255,.55);box-shadow:var(--shadow-lg)}
.compare-card.featured{
  border-color:rgba(46,107,255,.75);
  background:linear-gradient(180deg,rgba(46,107,255,.12) 0%,rgba(255,255,255,.045) 62%);
  box-shadow:0 0 0 1px rgba(46,107,255,.3),var(--shadow-lg);
}
.badge-rec{
  position:absolute;top:-13px;left:28px;
  font-size:12px;letter-spacing:.08em;font-family:var(--font-num);
  padding:5px 12px;border-radius:999px;color:#0A1220;font-weight:700;
  background:linear-gradient(135deg,var(--accent),#5BE9DA);
  box-shadow:0 8px 20px rgba(25,211,197,.32);
}
.badge-tier{
  font-size:12px;letter-spacing:.08em;color:var(--accent);
  background:rgba(25,211,197,.14);border-radius:999px;padding:4px 11px;
  display:inline-block;margin-bottom:14px;
}
.badge-tier.warm{color:var(--warm);background:rgba(228,169,78,.14)}
.compare-card h3{font-size:21px;line-height:1.4}
.compare-card .card-note{font-size:14px;color:var(--text-3);margin-top:8px}
.price-line{display:flex;align-items:baseline;gap:8px;margin:22px 0 6px}
.price-num{font-family:var(--font-num);font-size:44px;font-weight:700;line-height:1;letter-spacing:-.02em}
.price-unit{font-size:13px;color:var(--text-3)}
.price-desc{font-size:13.5px;color:var(--text-2)}
.compare-list{margin:24px 0 26px;display:grid;gap:12px}
.compare-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.65}
.compare-list li i{color:var(--accent);margin-top:4px;font-size:12px;flex-shrink:0}
.compare-list li i.dim{color:var(--text-3)}
.compare-card .btn{margin-top:auto}

/* ---------- table ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--surface);box-shadow:var(--shadow);
}
.table-scroll{overflow-x:auto}
table.plan-table{width:100%;border-collapse:collapse;min-width:660px}
table.plan-table thead th{
  background:linear-gradient(135deg,rgba(46,107,255,.34),rgba(25,211,197,.2));
  font-size:13.5px;font-weight:650;color:#fff;text-align:left;
  padding:16px 20px;letter-spacing:.02em;white-space:nowrap;
}
table.plan-table thead th:first-child{position:sticky;left:0;z-index:2;background:linear-gradient(135deg,rgba(46,107,255,.34),rgba(30,60,130,.6))}
table.plan-table tbody td{
  padding:15px 20px;font-size:14.5px;color:var(--text-2);
  border-top:1px solid var(--line);
}
table.plan-table tbody td:first-child{
  position:sticky;left:0;z-index:2;
  background:#0C1526;color:var(--text-1);font-weight:600;white-space:nowrap;
}
table.plan-table tbody tr:hover td{background:rgba(46,107,255,.06)}
table.plan-table tbody tr:hover td:first-child{background:#111E36}
.cell-check{color:var(--accent);font-weight:600}
.cell-dim{color:var(--text-3)}
.col-rec{background:rgba(46,107,255,.07)}

/* ---------- feature split ---------- */
.feature-split{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.feature-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-lg);
}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .35s var(--ease)}
.feature-media:hover img{transform:scale(1.03)}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,0) 42%,rgba(6,11,22,.82) 100%);
  pointer-events:none;
}
.media-caption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
  font-size:13.5px;color:var(--text-2);
}
.media-caption strong{display:block;font-size:16px;color:#fff;font-weight:650;margin-bottom:4px}
.feature-text h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3}
.feature-text p{color:var(--text-2);font-size:15.5px;margin-top:16px;line-height:1.85}
.step-list{margin-top:28px;display:grid;gap:18px}
.step-item{display:flex;gap:16px}
.step-num{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--primary-2);
  background:rgba(46,107,255,.12);border:1px solid rgba(46,107,255,.34);
}
.step-item h3{font-size:16px;margin-bottom:4px}
.step-item p{font-size:14px;color:var(--text-2);margin:0}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--surface);
  overflow:hidden;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{border-color:rgba(46,107,255,.5);background:rgba(46,107,255,.06)}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:62px;display:flex;align-items:center;gap:16px;
  padding:14px 20px;font-size:15.5px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  margin-left:auto;flex-shrink:0;width:24px;height:24px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(46,107,255,.14);color:var(--primary-2);font-size:12px;
  transition:transform .22s var(--ease);
}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-answer{padding:0 20px 20px;font-size:14.5px;line-height:1.85;color:var(--text-2)}

/* ---------- cta / form ---------- */
.cta-section{padding:96px 0}
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1fr 1fr;gap:52px;
  background:linear-gradient(135deg,rgba(46,107,255,.16) 0%,rgba(14,24,48,.86) 52%,rgba(25,211,197,.1) 100%);
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);
  padding:52px;
  box-shadow:var(--shadow-lg);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 1px,transparent 1px 9px);
  opacity:.7;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3}
.cta-copy p{color:var(--text-2);font-size:15.5px;margin-top:16px}
.point-list{margin-top:26px;display:grid;gap:12px}
.point-list li{display:flex;gap:11px;font-size:14.5px;color:var(--text-2)}
.point-list li i{color:var(--accent);margin-top:5px;font-size:12px}
.form-card{
  position:relative;z-index:2;
  background:rgba(8,14,28,.72);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;backdrop-filter:blur(8px);
}
.form-grid{display:grid;gap:16px}
.field{display:grid;gap:7px}
.field label{font-size:13.5px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:11px 13px;border-radius:10px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(46,107,255,.08);
  box-shadow:0 0 0 3px rgba(46,107,255,.18);
}
.field select option{background:#0A1220;color:var(--text-1)}
.form-note{font-size:12.5px;color:var(--text-3);line-height:1.7}
.form-alert{
  display:none;margin-top:14px;padding:11px 14px;border-radius:10px;
  font-size:13.5px;
  background:rgba(53,208,127,.12);border:1px solid rgba(53,208,127,.4);color:var(--success);
}
.form-alert.show{display:block}
.form-alert.error{background:rgba(255,107,107,.1);border-color:rgba(255,107,107,.42);color:var(--danger)}

/* ---------- footer ---------- */
.site-footer{
  background:#070D1A;
  border-top:1px solid var(--line);
  padding:68px 0 26px;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:340px}
.footer-title{
  font-size:14px;letter-spacing:.1em;color:var(--text-1);font-weight:650;margin-bottom:16px;
}
.footer-links li{line-height:34px}
.footer-links a{font-size:14px;color:var(--text-3)}
.footer-links a:hover{color:var(--text-1)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{
  min-height:38px;padding:0 16px;border-radius:10px;cursor:pointer;
  background:transparent;border:1px solid var(--line-strong);color:var(--text-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.to-top:hover{border-color:var(--primary);color:#fff;background:rgba(46,107,255,.12)}

/* ---------- responsive ---------- */
@media (max-width:1400px){
  .container{max-width:1180px}
}
@media (max-width:1200px){
  .feature-split{gap:40px}
  .command-search{min-width:210px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .menu-toggle{display:inline-flex}
  .command-search{display:none}
  .quick-link{display:none}
  .compare-grid{grid-template-columns:1fr}
  .feature-split{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr;padding:36px;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:76px 0}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .hero{padding:calc(var(--nav-h) + 52px) 0 62px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .section{padding:60px 0}
  .section-head{margin-bottom:28px}
  .lead-text{font-size:16px}
  .cta-panel{padding:26px 20px}
  .form-card{padding:22px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{width:100%}
  .compare-card{padding:26px 20px 22px}
  .price-num{font-size:38px}
}
@media (max-width:520px){
  body{font-size:15px}
  h1{letter-spacing:0}
  .hero-title{font-size:27px}
  .brand-text{font-size:15.5px}
  .container{padding:0 16px}
  .faq-item summary{font-size:14.5px;padding:12px 16px;gap:12px}
  .faq-answer{padding:0 16px 18px}
  table.plan-table thead th,table.plan-table tbody td{padding:12px 14px;font-size:13.5px}
}