:root{--bg: #f4f1ff;--bg-soft: #eef3ff;--text: #2b2450;--primary: #4d31b5;--secondary: #f7c62f;--accent: #3aa2ff;--card: rgba(255, 255, 255, .78);--line: rgba(108, 88, 186, .22);--shadow: 0 14px 36px rgba(54, 38, 116, .18);--shadow-strong: 0 20px 40px rgba(43, 28, 105, .28)}*{box-sizing:border-box}body{margin:0;font-family:PingFang SC,Microsoft YaHei,sans-serif;color:var(--text);background:radial-gradient(circle at 18% 6%,#f4da7a 0%,transparent 24%),radial-gradient(circle at 88% 16%,#b8ddff 0%,transparent 26%),linear-gradient(180deg,#f7f4ff,#edf3ff);overflow-x:hidden}a{text-decoration:none;color:inherit}.container{width:min(1080px,calc(100% - 32px));margin:0 auto}.section{padding:72px 0}.bg-grid{position:fixed;inset:0;z-index:-2;background-image:linear-gradient(to right,rgba(170,162,208,.06) 1px,transparent 1px),linear-gradient(to bottom,rgba(170,162,208,.06) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}h1,h2,h3,p{margin:0}h2{text-align:center;margin-bottom:28px;font-size:clamp(1.4rem,2.4vw,2rem);color:#362b67}.bg-deco{position:fixed;width:280px;height:280px;border-radius:50%;filter:blur(40px);z-index:-1;opacity:.55}.bg-deco-left{left:-80px;top:-40px;background:#f1d16e}.bg-deco-right{right:-80px;top:240px;background:#83c2ff}.hero{padding-top:24px}.nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px;padding:12px 14px;background:#ffffff80;border:1px solid var(--line);border-radius:16px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 10px 28px #42338a1a}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700}.brand-logo{width:42px;height:42px;border-radius:10px;box-shadow:0 8px 20px #3f308338}.nav-action{color:#fff;background:linear-gradient(90deg,var(--primary),#3e7dff);border-radius:999px;padding:10px 16px;font-weight:600;transition:transform .18s ease,box-shadow .18s ease,filter .18s 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