:root{--bg: #f7faff;--surface: #f7faff;--dark: #143173;--primary: #2976ff;--aux1: #829fc1;--aux2: #526a8b;--white: #ffffff;--shadow: 0 8px 20px rgba(15, 23, 42, .04);--shadow-blue: 0 12px 28px rgba(41, 118, 255, .2);--radius-pill: 999px;--max: 1248px;font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif;color:var(--dark);background:#eef4fb;line-height:1.5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:#eef4fb}a{color:inherit;text-decoration:none}button{font:inherit;border:0;background:none;cursor:pointer}img{display:block;max-width:100%}.asset{width:auto;height:auto;max-width:none;flex-shrink:0}.page{overflow-x:clip;background:#eef4fb}.nav{position:sticky;top:0;z-index:40;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f7faff66;border-bottom:1px solid rgba(217,232,250,.5);box-shadow:var(--shadow)}.nav-inner{max-width:1440px;margin:0 auto;min-height:80px;padding:0 72px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:400;color:var(--dark)}.brand-mark{position:relative;width:32px;height:32px;overflow:hidden;flex-shrink:0}.brand-mark img{position:absolute;width:165.757px;height:166px;max-width:none;left:calc(50% - 82.8785px);top:calc(50% - 83px);transform:rotate(180deg) scaleX(-1);transform-origin:center center}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:54px;padding:0 24px;border-radius:var(--radius-pill);font-weight:700;font-size:15px;white-space:nowrap;transition:transform .2s ease,box-shadow .2s ease}.btn:hover{transform:translateY(-1px)}.btn-disabled{opacity:.45;cursor:default;pointer-events:none}.btn-disabled:hover{transform:none}.btn-primary{background:var(--primary);color:#fff;border:1px solid var(--primary);box-shadow:var(--shadow-blue)}.btn-glass{background:#ffffffb8;color:var(--dark);border:1px solid rgba(255,255,255,.8);box-shadow:var(--shadow-blue)}.btn-frost{background:#fff6;color:#fff;border:1px solid rgba(255,255,255,.2);box-shadow:var(--shadow)}.btn-ios{font-size:16px}.nav .btn{height:50px}.hero{position:relative;height:auto;padding:72px 96px 0;display:flex;flex-direction:column;align-items:center;text-align:center;gap:42px;overflow:visible;background:linear-gradient(180deg,#f7faff,#e8f4ff)}.hero-glow{position:absolute;border-radius:50%;filter:blur(40px);pointer-events:none}.hero-glow-a{width:520px;height:520px;top:-120px;left:8%;background:radial-gradient(circle,rgba(41,118,255,.18),transparent 70%)}.hero-glow-b{width:520px;height:520px;left:50%;top:520px;transform:translate(-50%);background:radial-gradient(circle,rgba(180,220,255,.35),transparent 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