:root{color-scheme:light;--bg-top: #f2f7ff;--bg-bottom: #eafaf3;--ink-main: #11243a;--ink-sub: #47607d;--ink-soft: #5f7894;--accent: #0a5bd8;--panel: rgba(255, 255, 255, .9);--panel-border: rgba(17, 36, 58, .08)}*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{font-family:SF Pro Display,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink-main);background:radial-gradient(circle at 12% 18%,rgba(10,91,216,.11),transparent 46%),radial-gradient(circle at 88% 80%,rgba(14,176,112,.12),transparent 45%),linear-gradient(160deg,var(--bg-top),var(--bg-bottom))}.wrap{min-height:100vh;display:grid;place-items:center;padding:20px}.panel{width:min(640px,100%);background:var(--panel);border:1px solid var(--panel-border);border-radius:20px;padding:34px 26px;text-align:center;box-shadow:0 22px 48px #08224424}.eyebrow{margin:0 0 10px;text-transform:uppercase;letter-spacing:.09em;font-size:.76rem;color:var(--accent);font-weight:700}h1{margin:0;font-size:clamp(1.55rem,3.9vw,2.2rem);line-height:1.2}.desc{margin:14px 0 0;color:var(--ink-sub);font-size:1.02rem;line-height:1.65}.target{margin:16px auto 0;width:fit-content;max-width:100%;padding:10px 14px;border-radius:10px;background:#eef5ff;color:#0b3e91;font-weight:700;font-size:1rem;line-height:1.4;overflow-wrap:anywhere}.countdown{margin:22px 0 0;font-size:1.08rem}.countdown strong{color:var(--accent)}.hint{margin:12px 0 0;font-size:.92rem;color:var(--ink-soft)}@media (max-width: 480px){.panel{padding:28px 18px;border-radius:16px}.desc,.countdown,.target{font-size:.96rem}}