/* LiyoPlay 品牌落地站 — 合规广告落地页 + 法务页共用样式 */
:root{
  --bg:#0A0C1E; --surface:#12152e; --surface-2:#171a36; --line:#262a4d;
  --text:#eef0fb; --muted:#9aa0c7; --accent:#5b6cff; --accent-2:#8a5bff;
  --ok:#36d399; --radius:16px; --maxw:1080px; --prose:760px;
  --space:clamp(16px,4vw,28px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC",sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
}
a{color:#aab4ff;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

/* 顶栏 */
.nav{position:sticky;top:0;z-index:20;backdrop-filter:blur(10px);
  background:rgba(10,12,30,.72);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:18px;
  padding:14px var(--space)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--text)}
.brand img{width:30px;height:30px;border-radius:8px}
.nav-links{margin-left:auto;display:flex;gap:18px;font-size:14px}
.nav-links a{color:var(--muted)}
@media(max-width:560px){.nav-links{gap:12px;font-size:13px}}

/* 容器 */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--space)}
.prose{max-width:var(--prose);margin:0 auto;padding:32px var(--space) 8px}
.prose h1{font-size:clamp(26px,5vw,34px);margin:.2em 0 .1em}
.prose h2{font-size:20px;margin:1.6em 0 .4em}
.prose p,.prose li{color:#d6d9f0}
.prose .updated{color:var(--muted);font-size:13px;margin-bottom:1.4em}
.prose a{color:#aab4ff}
.back{display:inline-block;margin:6px 0 24px;color:var(--muted);font-size:14px}

/* Hero */
.hero{position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(900px 480px at 50% -10%,#1a1f44 0%,transparent 60%),
            radial-gradient(700px 460px at 100% 0%,#2a1850 0%,transparent 55%);pointer-events:none}
.hero-in{position:relative;max-width:var(--maxw);margin:0 auto;padding:clamp(40px,9vw,84px) var(--space) clamp(28px,6vw,56px);text-align:center}
.hero h1{font-size:clamp(32px,7vw,52px);line-height:1.08;letter-spacing:-.02em;margin:0 0 14px;font-weight:800}
.hero p.sub{font-size:clamp(16px,2.6vw,19px);color:var(--muted);max-width:620px;margin:0 auto 28px}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 26px;border-radius:var(--radius);
  font-weight:700;font-size:16px;border:0;cursor:pointer;text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;
  box-shadow:0 14px 34px -12px var(--accent)}
.btn-primary:hover{text-decoration:none}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{text-decoration:none;background:rgba(255,255,255,.1)}
.trust{margin-top:22px;color:var(--muted);font-size:13.5px;display:flex;gap:8px 18px;justify-content:center;flex-wrap:wrap}
.trust b{color:var(--text)}

/* 区块 */
.section{padding:clamp(36px,7vw,64px) 0}
.section h2.title{text-align:center;font-size:clamp(22px,4vw,28px);margin:0 0 6px}
.section p.lead{text-align:center;color:var(--muted);margin:0 auto 32px;max-width:560px}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.card{background:linear-gradient(180deg,var(--surface),var(--surface-2));border:1px solid var(--line);
  border-radius:14px;padding:16px;text-align:center}
.card .emoji{font-size:30px}
.card .name{font-weight:700;margin-top:8px;font-size:15px}
.card .tag{color:var(--muted);font-size:12.5px;margin-top:2px}
.steps{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));max-width:820px;margin:0 auto}
.step{background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:14px;padding:20px}
.step .n{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.step h3{margin:0 0 4px;font-size:16px}
.step p{margin:0;color:var(--muted);font-size:14px}

/* 页脚 */
.footer{border-top:1px solid var(--line);margin-top:24px;background:#0a0b1a}
.footer-in{max-width:var(--maxw);margin:0 auto;padding:28px var(--space);font-size:13.5px;color:var(--muted)}
.footer .links{display:flex;gap:8px 20px;flex-wrap:wrap;margin-bottom:14px}
.footer .links a{color:#c4c8ec}
.footer .meta{display:flex;gap:6px 16px;flex-wrap:wrap;align-items:center}
.age-badge{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);
  border-radius:999px;padding:3px 10px;color:var(--text);font-weight:700;font-size:12px}
.footer .disclaimer{margin-top:12px;line-height:1.5}