:root{--bg: #f0f2f5;--card: #fff;--border: #e9ecef;--text: #212529;--t2: #6c757d;--blue: #4361ee;--bl: #eef1ff;--teal: #2ec4b6;--tl: #e6faf7;--coral: #ff6b6b;--cl: #ffe8e8;--amber: #ffd166;--al: #fff8e0;--purple: #7c3aed;--pl: #f0e8ff;--orange: #f97316;--ol: #fff3e6;--radius: 14px;--rs: 10px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}.hd{background:linear-gradient(135deg,#1a1a2e,#16213e);padding:18px 28px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.hd-l{display:flex;align-items:center;gap:12px}.hd-l h1{color:#fff;font-size:17px;font-weight:700}.hd-l .ver{font-size:9px;color:#fff6;background:#ffffff14;padding:2px 8px;border-radius:5px;font-weight:600}.hd-r{font-size:11px;color:#ffffff80;display:flex;align-items:center;gap:12px}.backend-switch{font-size:11px;color:#333;background:#fff;border:1px solid rgba(255,255,255,.25);border-radius:6px;padding:3px 6px;cursor:pointer;outline:none}.backend-switch:focus{border-color:var(--blue)}.hd-r .hl{width:4px;height:4px;border-radius:50%;background:var(--teal);display:inline-block;margin-right:3px;animation:pu 1.5s infinite}@keyframes pu{0%,to{opacity:1}50%{opacity:.2}}.tab-bar{background:#fff;border-bottom:1px solid var(--border);padding:0 24px;display:flex;position:sticky;top:0;z-index:10}.tab-b{padding:10px 18px;font-size:12px;font-weight:500;border:none;background:none;cursor:pointer;color:var(--t2);border-bottom:2px solid transparent;text-decoration:none;transition:all .15s}.tab-b:hover{color:var(--text)}.tab-b.act{color:var(--blue);border-bottom-color:var(--blue);font-weight:600}.tab-b .ic{margin-right:4px}.ct{max-width:1240px;margin:0 auto;padding:14px 18px 36px}