/* ================= TOKENS / RESET ================= */
:root{
  --bg:#0b0b0c; --surface:#111215; --card:#16181d; --text:#eef1f6; --muted:#9aa3ad;
  --brand:#1f6feb; --border:#242730; --accent:#ffd966;
  --radius:14px; --shadow:0 6px 24px rgba(0,0,0,.18);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,Arial}
img{max-width:100%;display:block}
a{color:#9cc2ff;text-decoration:none}
.wrap{max-width:1100px;margin:0 auto;padding:0 14px}
.d-none-mobile{display:none}
@media (min-width:860px){ .d-none-mobile{display:inline-flex} }

/* ================= HEADER ================= */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,11,12,.9);backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--border)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand-home{display:flex;align-items:center;gap:12px;color:inherit}
.logo{width:52px;height:52px;padding:6px;border-radius:12px;border:1px solid var(--border);background:linear-gradient(135deg,#2b2f36,#171a1f);display:flex;align-items:center;justify-content:center}
.logo img{height:40px;width:auto;object-fit:contain}
.brand-name{line-height:1}
.tag{font-size:12px;color:#c3c8d0;background:#171a1f;border:1px solid var(--border);border-radius:999px;padding:4px 10px}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:transparent;color:var(--text)}
.main-nav{display:none;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 14px;border-radius:10px;border:1px solid transparent;background:var(--brand);color:white;font-weight:600;box-shadow:var(--shadow)}
.btn.ghost{background:transparent;border-color:var(--border);color:var(--text);box-shadow:none}
.header-ad{padding-bottom:10px}
@media (min-width:860px){
  .menu-toggle{display:none}
  .main-nav{display:flex}
}

/* ================= ADS ================= */
.ad{position:relative;display:grid;place-items:center;background:#101216;border:1px dashed #2a2f37;border-radius:var(--radius);overflow:hidden}
.ad>.label{position:absolute;top:8px;left:10px;color:#8b93a1;background:#0b0c10;border:1px solid #2a2f37;border-radius:999px;padding:3px 8px;font-size:11px}
.ad>.demo{color:#9aa3ad;font-size:13px}
.ad.leader{min-height:90px}
.ad.billboard{min-height:220px}
.ad.box{min-height:250px}
.ad.tower{min-height:600px}
.ad.inline{min-height:120px}
.sticky-ad{position:sticky;top:12px}
@media (max-width:860px){
  .ad.leader{min-height:60px}
  .ad.billboard{min-height:160px}
  .ad.tower{min-height:250px}
}

/* ================= HERO ================= */
.hero{padding:16px 0;border-bottom:1px solid var(--border)}
.grid{display:grid;gap:14px}
.hero-grid{grid-template-columns:1fr}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow)}
.hero-card{display:grid;gap:12px;background:linear-gradient(180deg,#13151a,#0e1014)}
.hero-title{margin:0 0 6px;font-size:clamp(22px,3.5vw,32px)}
.hero-sub{margin:0 0 10px;color:var(--muted);font-size:clamp(13px,2.5vw,15px)}
.buttons{display:flex;gap:8px;flex-wrap:wrap}
.btn.sm{min-height:38px;padding:0 12px}
.hero-points{margin:10px 0 0;padding-left:16px;color:#b5bcc6;font-size:14px}
.hero-points li{margin:4px 0}
@media (min-width:980px){
  .hero-grid{grid-template-columns:1.2fr .8fr}
  .hero-card{grid-template-columns:1fr 1fr;align-items:center}
}

/* ================= CONTENT ================= */
.section-title{display:flex;align-items:baseline;justify-content:space-between;margin:12px 0 10px}
.section-title h2,h3{margin:0}
.cols{display:grid;grid-template-columns:1fr;gap:16px;margin:18px 0}
@media (min-width:980px){ .cols{grid-template-columns:2fr 1fr} }
.promo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media (min-width:520px){ .promo-grid{grid-template-columns:repeat(3,1fr)} }
@media (min-width:980px){ .promo-grid{grid-template-columns:repeat(4,1fr)} }
.promo .logo{height:56px;display:grid;place-items:center}
.promo .title-line{display:flex;gap:8px;align-items:center}
.promo .desc{color:var(--muted);font-size:14px;min-height:34px}
.badge{color:var(--accent);font-size:12px}
.sp-10{height:10px}.sp-12{height:12px}

.list{display:grid;gap:10px}
.row{display:grid;grid-template-columns:70px 1fr auto;gap:10px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:10px}
.thumb{width:70px;height:52px;border-radius:10px;border:1px solid var(--border);background:linear-gradient(135deg,#2b2f36,#171a1f);display:grid;place-items:center;font-size:12px;color:#9aa3ad}
@media (max-width:520px){
  .row{grid-template-columns:56px 1fr}
  .row .cta{grid-column:1/-1}
  .row .cta .btn{width:100%}
  .thumb{width:56px;height:44px}
}

/* ================= FOOTER / FLOATING ================= */
.site-footer{border-top:1px solid var(--border);margin-top:20px}
.foot{display:grid;gap:12px;padding:14px 0}
.footnote{color:var(--muted);font-size:13px;text-align:center;padding:10px 0 20px}
.floating{position:fixed;right:14px;bottom:90px;width:min(320px,94vw);z-index:40}
@media (max-width:980px){ .floating{display:none} }

/* ================= STICKY & INTERSTITIAL ================= */
.sticky-banner{position:fixed;left:0;right:0;bottom:0;z-index:60;background:#0f1115;border-top:1px solid var(--border);display:flex;gap:10px;align-items:center;justify-content:center;padding:8px}
.sticky-banner .close{position:absolute;right:10px;top:-10px;width:34px;height:34px;border-radius:999px;border:1px solid var(--border);background:#1a1d22;color:#fff}
.interstitial{position:fixed;inset:0;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;z-index:70}
.modal{width:min(92vw,720px);background:#111218;border:1px solid var(--border);border-radius:16px;overflow:hidden}
.modal .head{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--border)}
.modal .body{padding:14px}