:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:#100b20;color:#fff}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 75% -10%,#703bb4 0,transparent 31rem),linear-gradient(180deg,#171027 0,#100b20 68%,#171027 100%);min-height:100vh}.page-shell{width:min(100%,760px);margin:auto;padding:20px 18px 56px}.header{display:flex;align-items:center;justify-content:space-between;padding:6px 0 32px}.brand{font-weight:800;font-size:26px;letter-spacing:2px}.header-note{font-size:13px;color:#cfc6db}.intro{padding-bottom:20px}.eyebrow{margin:0 0 10px;color:#d6a8ff;font-size:13px;font-weight:700;letter-spacing:.12em}.intro h1,.wechat-gate h1{margin:0;font-size:clamp(30px,8vw,46px);line-height:1.12;letter-spacing:-.04em}.intro>p:last-child{margin:16px 0 0;color:#cbc2d6;line-height:1.7;font-size:16px}.video-card{position:relative;overflow:hidden;border:1px solid #ffffff22;border-radius:22px;background:#000;box-shadow:0 22px 60px #0007;aspect-ratio:16/9}.video-card video{display:block;width:100%;height:100%;object-fit:contain;background:#000}.play-button{position:absolute;inset:0;margin:auto;width:136px;height:58px;border:0;border-radius:999px;background:#fff;color:#26153d;display:flex;gap:10px;align-items:center;justify-content:center;font-size:16px;font-weight:800;box-shadow:0 8px 30px #0008;cursor:pointer}.play-button span:first-child{font-size:20px}.play-button[hidden]{display:none}.video-unavailable{position:absolute;inset:0;display:grid;place-items:center;text-align:center;background:#090512e6;color:#ddd2e9;padding:24px}.button{display:flex;align-items:center;justify-content:center;min-height:54px;border:0;border-radius:14px;padding:14px 20px;text-decoration:none;font-size:17px;font-weight:800;cursor:pointer}.button-primary{color:#20112f;background:linear-gradient(135deg,#f3c7ff,#cbb1ff);box-shadow:0 12px 32px #b274e344}.button-secondary{width:100%;color:#fff;background:#ffffff15;border:1px solid #ffffff33}.cta{margin-top:22px}.cta-note{text-align:center;color:#a99db7;font-size:13px;margin:12px 0}.ended-cta{margin-top:32px;padding:26px 20px;border:1px solid #ffffff22;border-radius:20px;background:#ffffff0b;text-align:center}.ended-cta p{margin:0;color:#d6a8ff;font-weight:700}.ended-cta h2{margin:8px 0 20px;font-size:24px}.wechat-gate{min-height:calc(100vh - 76px);display:flex;flex-direction:column;justify-content:center;text-align:center}.wechat-icon{width:62px;height:50px;border-radius:17px;margin:0 auto 28px;background:#fff;color:#221132;font-size:26px;font-weight:900;letter-spacing:3px;line-height:37px}.wechat-gate>p:not(.eyebrow):not(.copy-status){color:#cfc6db;line-height:1.7;font-size:17px}.copy-status{min-height:24px;color:#d6a8ff;margin:14px 0 0;font-size:14px}@media (max-width:430px){.page-shell{padding:18px 14px 42px}.header{padding-bottom:26px}.header-note{font-size:12px}.video-card{border-radius:16px}.intro h1{font-size:34px}}