:root{color-scheme:dark;font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Avenir,Helvetica,Arial,sans-serif;color:#f3f5ff;background:#11131d;--page-bg: #11131d;--topbar-bg: rgba(28, 31, 44, .86);--text: #f3f5ff;--text-soft: #cfd5ea;--text-muted: #9ca3bc;--accent-blue: #4c63ff;--accent-pink: #d767ff;--success: #58e5b0;--warning: #ffbe55;--shadow: 0 24px 56px rgba(4, 6, 12, .34);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;color:var(--text);background:var(--page-bg)}button,a{font:inherit}button{border:0;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.74}a{color:inherit;text-decoration:none}svg{width:24px;height:24px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}.download-shell{position:relative;min-height:100vh;overflow:hidden;background:linear-gradient(90deg,rgba(7,10,18,.24) 1px,transparent 1px) 0 0 / 54px 100%,radial-gradient(circle at 34% 34%,rgba(88,229,176,.22),transparent 24%),radial-gradient(circle at 68% 34%,rgba(215,103,255,.3),transparent 28%),linear-gradient(135deg,#203a8a,#292477 38%,#5f4ab3 64%,#d9dfea)}.download-shell:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background:linear-gradient(180deg,transparent 0%,rgba(255,201,148,.28) 100%),linear-gradient(90deg,rgba(255,255,255,.04),transparent 34%,rgba(255,255,255,.1))}.download-titlebar{position:fixed;inset:0 0 auto;z-index:10;display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 28px;background:var(--topbar-bg);border-bottom:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand-lockup{display:flex;align-items:center;gap:12px;min-width:0}.brand-logo{width:42px;height:42px;border-radius:10px;object-fit:cover;background:#11131d}.brand-lockup div{display:grid;gap:2px;min-width:0}.brand-lockup strong{font-size:17px;line-height:1.2}.brand-lockup span{color:var(--text-muted);font-size:13px}.download-landing{position:relative;z-index:1;min-height:100vh;display:grid;place-items:center;padding:120px 32px 86px}.landing-hero{width:min(980px,100%);display:grid;justify-items:center;text-align:center}.landing-logo{width:104px;height:104px;margin-bottom:30px;border-radius:24px;object-fit:cover;background:#0c0e1875;box-shadow:0 20px 44px #04060c47}.landing-hero h1{margin:0 0 34px;color:#fffffff0;font-size:clamp(64px,7vw,112px);font-weight:600;line-height:1.04;letter-spacing:0;text-shadow:0 12px 34px rgba(4,6,12,.24)}.landing-download-button{min-width:min(92vw,430px);min-height:78px;display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:0 36px;border-radius:999px;color:#101420;background:#f6faffeb;box-shadow:var(--shadow);font-size:clamp(24px,2.5vw,40px);font-weight:600;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.landing-download-button svg{width:34px;height:34px}.landing-download-button:hover:not(:disabled){transform:translateY(-2px);background:#fff;box-shadow:0 30px 68px #04060c61}.version-line{min-height:28px;margin:26px 0 24px;color:#ffffffe0;font-size:18px;font-weight:500}.other-downloads{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:28px;min-height:34px}.other-downloads:empty{display:none}.other-downloads a{display:inline-flex;align-items:center;gap:4px;color:#101420c7;font-size:18px;font-weight:600}.other-downloads svg{width:20px;height:20px}.download-error{display:grid;gap:8px;max-width:760px;margin:24px 0 0;color:#ffffffe6;line-height:1.7}.download-error span{color:#ffffff94;word-break:break-all}.wechat-window-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:end center;padding:108px 28px 38px;background:radial-gradient(circle at calc(100% - 64px) 46px,transparent 0 54px,rgba(5,7,13,.7) 56px),#05070db8;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.wechat-window-spotlight{position:fixed;top:18px;right:18px;z-index:102;width:96px;height:72px;display:flex;align-items:center;justify-content:center;gap:8px;border-radius:28px;border:3px solid #58e5b0;color:#111827;background:#f5f7faf5;box-shadow:0 0 0 8px #58e5b02e,0 20px 48px #04060c57}.wechat-window-spotlight span{width:6px;height:6px;border-radius:999px;background:currentColor}.wechat-window-pointer{position:fixed;top:96px;right:34px;z-index:102;display:grid;justify-items:center;gap:8px;color:#58e5b0}.wechat-window-pointer:before{content:"";width:4px;height:34px;border-radius:999px;background:currentColor;box-shadow:0 0 18px #58e5b07a}.wechat-window-pointer span{padding:8px 12px;border-radius:999px;color:#07130f;background:#58e5b0;font-size:14px;font-weight:700;box-shadow:0 12px 28px #04060c47}.wechat-window-card{position:relative;z-index:101;width:min(900px,100%);display:grid;gap:18px;padding:24px;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:linear-gradient(180deg,#202433fa,#171b28fa);box-shadow:0 30px 70px #0000006b}.wechat-window-heading{display:flex;align-items:flex-start;gap:14px}.wechat-window-heading>svg{width:42px;height:42px;padding:9px;border-radius:12px;color:#2a1a00;background:linear-gradient(90deg,#ffb11f,#ffc942)}.wechat-window-heading span{display:block;margin-bottom:4px;color:var(--text-muted);font-size:13px;letter-spacing:.08em;text-transform:uppercase}.wechat-window-heading h2{margin:0;font-size:28px;line-height:1.2}.wechat-overlay-visuals{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.wechat-overlay-visuals figure{margin:0;overflow:hidden;border-radius:14px;border:1px solid rgba(255,255,255,.08);background:#ffffff0a}.wechat-overlay-visuals img{display:block;width:100%;aspect-ratio:13 / 8;object-fit:cover}.wechat-action-line{margin:0;color:var(--text-soft);font-size:20px;font-weight:600;line-height:1.5;text-align:center}.panel-actions{display:flex;justify-content:flex-end;gap:12px}.primary-button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 20px;border-radius:12px;color:#fff;background:linear-gradient(90deg,var(--accent-blue) 0%,var(--accent-pink) 100%);box-shadow:0 12px 28px #6f46ff4d;white-space:nowrap}@media(max-width:760px){.download-titlebar{padding:0 16px}.download-landing{padding:100px 18px 54px}.landing-logo{width:82px;height:82px;margin-bottom:24px}.landing-hero h1{margin-bottom:28px;font-size:44px}.landing-download-button{min-height:64px;font-size:24px}.version-line{margin:20px 0 18px;font-size:15px}.wechat-window-overlay{padding:100px 14px 18px;place-items:end center}.wechat-window-spotlight{right:10px;width:82px;height:62px}.wechat-window-pointer{right:18px}.wechat-window-card{padding:18px;border-radius:14px}.wechat-overlay-visuals{grid-template-columns:1fr}.panel-actions{width:100%;flex-direction:column;align-items:stretch}}