:root{--bg: #07090f;--bg-elevated: #0d111c;--ink: #f4f7ff;--ink-muted: #8b95b0;--line: rgba(244, 247, 255, .08);--accent: #5b8cff;--accent-soft: #9bb6ff;--success: #3ddc97;--danger: #ff6b7a;--radius: 16px;--font: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;--mono: "Cascadia Code", "SF Mono", ui-monospace, Menlo, monospace}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}img{max-width:100%;display:block}.container{width:min(1120px,calc(100% - 40px));margin:0 auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:999px;font-weight:600;transition:transform .2s ease,box-shadow .2s ease,background .2s 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