:root{--bg:#fff;--bg-soft:#f4f6f9;--bg-muted:#f8fafc;--border:#e3e8ef;--text:#17202b;--text-2:#4a5568;--text-3:#8a94a6;--primary:#0053a0;--primary-dark:#003c77;--primary-weak:#e7f0fa;--accent:#6366f1;--danger:#d92d20;--success:#14804a;--warning:#b54708;--radius:4px;--radius-lg:10px;--shadow:0 1px 2px #1018280d, 0 3px 10px #10182812;--font:"PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}a.link,.link{color:var(--primary)}a.link:hover{text-decoration:underline}.container{max-width:1120px;margin:0 auto;padding:0 24px}.page{padding:48px 0 80px}.page-head{margin-bottom:32px}.page-head h1{margin:0 0 8px;font-size:28px}.page-head 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