:root{--bg: #0b0f1a;--bg-soft: #111827;--bg-card: #1a2234;--border: #2a3550;--text: #e5e9f0;--text-secondary: #9aa4b8;--text-muted: #6b7688;--primary: #4a7dff;--primary-hover: #3565e0;--primary-soft: rgba(74, 125, 255, .12);--success: #52c41a;--success-soft: rgba(82, 196, 26, .12);--error: #ff4d4f;--error-soft: rgba(255, 77, 79, .12);--warning: #faad14;--warning-soft: rgba(250, 173, 20, .12);--btn-disabled: #3a4a6b;--glow: rgba(74, 125, 255, .15);--nav-bg: rgba(11, 15, 26, .85);--radius: 12px;--radius-sm: 8px;--shadow: 0 8px 30px rgba(0, 0, 0, .35);--max-width: 1200px}@media(prefers-color-scheme:light){:root{--bg: #f5f7fa;--bg-soft: #ffffff;--bg-card: #ffffff;--border: #e2e6ee;--text: #1f2937;--text-secondary: #4b5563;--text-muted: #9ca3af;--primary: #4a7dff;--primary-hover: #3565e0;--primary-soft: rgba(74, 125, 255, .1);--success: #389e0d;--success-soft: rgba(56, 158, 13, .1);--error: #cf1322;--error-soft: rgba(207, 19, 34, .08);--warning: #d48806;--warning-soft: rgba(212, 136, 6, .1);--btn-disabled: #c0c8d8;--glow: rgba(74, 125, 255, .1);--nav-bg: rgba(255, 255, 255, .85);--shadow: 0 8px 30px rgba(0, 0, 0, .08)}}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;top:-20%;left:50%;transform:translate(-50%);width:1200px;height:600px;background:radial-gradient(ellipse at center,var(--glow),transparent 70%);pointer-events:none;z-index:0}#root{position:relative;z-index:1}a{color:var(--primary);text-decoration:none}button{font-family:inherit;cursor:pointer}input,textarea{font-family:inherit}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 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pulse{0%,to{opacity:1}50%{opacity:.5}}.fade-in-up{animation:fadeInUp .6s ease both}.navbar{position:sticky;top:0;z-index:100;background:var(--nav-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.navbar-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.navbar-logo{display:flex;align-items:center;gap:10px;color:var(--text)}.logo-icon{font-size:24px}.logo-text{font-size:18px;font-weight:700;letter-spacing:.5px}.navbar-links{display:flex;align-items:center;gap:28px}.navbar-links a{color:var(--text-secondary);font-size:15px;transition:color .2s}.navbar-links a:hover{color:var(--text)}.navbar-cta{padding:8px 20px;background:var(--primary);color:#fff!important;border-radius:var(--radius-sm);font-weight:600;transition:background .2s}.navbar-cta:hover{background:var(--primary-hover)}.navbar-github{display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:color 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32px;background:var(--bg-soft);border-top:1px solid var(--border)}.footer-inner{display:flex;flex-direction:column;align-items:center;text-align:center;gap:16px}.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700}.footer-desc{color:var(--text-secondary);font-size:14px}.footer-links{display:flex;gap:24px}.footer-links a{color:var(--text-secondary);font-size:14px;transition:color .2s}.footer-links a:hover{color:var(--primary)}.footer-copyright{color:var(--text-muted);font-size:12px;margin-top:8px}