@font-face{font-family:Weather Hub Sans;src:url(/fonts/zihunxinquhei.ttf)format("truetype");font-style:normal;font-weight:400 900;font-display:swap}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--sky-start:#cae8ff;--sky-mid:#e7f4ff;--sky-end:#f8fbff;--sky-glow:#ffffff59;--accent-glow:#f5a6232e;--primary:#00b8a0;--primary-dark:#009a86;--primary-light:#00b8a01f;--primary-glow:#00b8a02e;--accent:#f5a623;--accent-light:#f5a6231f;--text:#16293a;--text-light:#607589;--text-muted:#92a8bb;--bg:#fff;--bg-card:#ffffffd1;--bg-card-solid:#fff;--surface-elevated:#ffffffeb;--surface-soft:#ffffffb3;--surface-strong:#ffffffd6;--border:#97b5cc47;--shadow:0 8px 34px #005aaa1a;--shadow-hover:0 16px 48px #005aaa2e;--shadow-sm:0 2px 8px #005aaa0f;--radius:20px;--radius-sm:12px;--radius-xs:8px;--font:"Weather Hub Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;--font-display:"Weather Hub Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;--font-mono:"Weather Hub Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;--glass:#ffffffd1;--glass-blur:blur(12px);--glass-border:#ffffff80;--success-soft:#00b8a01f;--danger-soft:#dc262614;--danger-border:#f8717159;--danger-text:#dc2626;--info-soft:#22d3ee1a;--info-border:#22d3ee40;--info-text:#0f766e;--secure-canvas-filter:none;--transition:.35s cubic-bezier(.25, .8, .25, 1)}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--sky-start:#08131f;--sky-mid:#0e1c2c;--sky-end:#15273a;--sky-glow:#53d6c314;--accent-glow:#f5a62314;--primary:#53d6c3;--primary-dark:#2fc2ae;--primary-light:#53d6c324;--primary-glow:#53d6c329;--accent:#f7bf56;--accent-light:#f7bf561f;--text:#e7eef7;--text-light:#acbfd0;--text-muted:#73879b;--bg:#0a1623;--bg-card:#0c1825d6;--bg-card-solid:#111f2d;--surface-elevated:#0e1b29f5;--surface-soft:#122232d1;--surface-strong:#101e2de6;--border:#a6bed32e;--shadow:0 14px 32px #00000057;--shadow-hover:0 20px 42px #0000006b;--shadow-sm:0 6px 18px #0000003d;--glass:#08141fc2;--glass-border:#a6bed31f;--success-soft:#15803d42;--danger-soft:#7f1d1d52;--danger-border:#f871713d;--danger-text:#fda4af;--info-soft:#082f49b3;--info-border:#38bdf838;--info-text:#7dd3fc;--secure-canvas-filter:brightness(0) invert(.94)}*{box-sizing:border-box;margin:0;padding:0}button,input,textarea,select{font:inherit}body{font-family:var(--font);color:var(--text);background:radial-gradient(circle at top left, var(--sky-glow) 0%, transparent 30%), radial-gradient(circle at top right, var(--accent-glow) 0%, transparent 26%), linear-gradient(180deg, var(--sky-start) 0%, var(--sky-mid) 42%, var(--sky-end) 100%);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;transition:background var(--transition), color var(--transition);background-attachment:fixed;line-height:1.6;overflow-x:hidden}#root{max-width:100%;min-height:100vh;margin:0 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var(--transition);-webkit-user-select:none;user-select:none;border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;gap:4px;margin-left:2px;padding:4px;display:inline-flex;position:relative;overflow:hidden}.theme-option,.unit-option{color:var(--text-light);cursor:pointer;letter-spacing:.2px;text-align:center;white-space:nowrap;font-variant-numeric:tabular-nums;z-index:0;min-height:30px;transition:all var(--transition);-webkit-user-select:none;user-select:none;background:0 0;border:none;border-radius:999px;outline:none;padding:6px 11px;font-size:12px;font-weight:700;line-height:1.2;position:relative;box-shadow:inset 0 0 0 1px #0000}.theme-option{min-width:54px}.unit-option{min-width:48px}.theme-option:hover,.unit-option:hover{color:var(--text)}.theme-option.active,.theme-option[aria-pressed=true],.unit-option.active,.unit-option[aria-pressed=true]{z-index:1;background:linear-gradient(135deg, var(--bg-card-solid) 0%, var(--surface-elevated) 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