:root{color-scheme:dark;--bg:#1f2430;--card:#252c38;--line:#414b5c;--text:#f5f7fb;--muted:#b5bfce;--accent:#b998ff;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 12% 2%,#343247 0,transparent 30%),var(--bg);color:var(--text)}a{color:#d4c3ff}a:hover{color:#fff}.shell{width:min(920px,calc(100% - 32px));margin:auto}.top{display:flex;align-items:center;justify-content:space-between;padding:25px 0}.brand{color:#fff;text-decoration:none;font-size:22px;font-weight:800;letter-spacing:.04em}.top nav{display:flex;gap:16px;font-size:14px}.top nav a{text-decoration:none}.hero{padding:68px 0 38px}.eyebrow{margin:0 0 12px;color:var(--accent);font-size:13px;font-weight:800;letter-spacing:.12em}.hero h1{max-width:760px;margin:0;font-size:clamp(34px,6vw,58px);line-height:1.15;letter-spacing:-.05em}.lead{max-width:720px;margin:24px 0;color:var(--muted);font-size:18px;line-height:1.85}.button{display:inline-block;border-radius:10px;padding:12px 19px;background:linear-gradient(120deg,#7244d8,#a669ff);box-shadow:0 8px 20px rgba(116,65,232,.28);color:#fff;font-weight:800;text-decoration:none}.content{padding:26px 0 72px}.card{margin:18px 0;padding:28px;border:1px solid var(--line);border-radius:18px;background:rgba(37,44,56,.82)}h2{margin:0 0 14px;font-size:26px;letter-spacing:-.03em}p,li{color:var(--muted);line-height:1.85}ul{padding-left:22px}.links{display:flex;flex-wrap:wrap;gap:10px;padding:0;list-style:none}.links a{border:1px solid var(--line);border-radius:999px;padding:7px 12px;background:#1a202a;color:#e3dafc;text-decoration:none;font-size:14px}.faq h3{margin:24px 0 4px;font-size:17px}footer{padding:24px 0 42px;border-top:1px solid var(--line);color:#8793a6;font-size:13px}@media(max-width:620px){.top nav{gap:11px;font-size:12px}.hero{padding-top:40px}.card{padding:22px}.lead{font-size:16px}}