:root{--bg: #f5f7fb;--card: #ffffff;--ink: #1b2330;--muted: #6b7891;--line: #e6eaf2;--brand: #2f6df0;--brand-soft: #eaf1ff;--pink: #e85d9b;--green: #18a965;--amber: #e8a33d;--red: #e2574c;--shadow: 0 1px 3px rgba(20, 35, 70, .06), 0 8px 24px rgba(20, 35, 70, .06)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:PingFang HK,PingFang SC,Microsoft JhengHei,Noto Sans HK,system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.5}.wrap{max-width:1080px;margin:0 auto;padding:0 18px 64px}header.top{background:linear-gradient(135deg,#2f6df0,#5b8cff 60%,#7aa0ff);color:#fff;padding:34px 0 30px;margin-bottom:-20px}header.top .wrap{padding-bottom:0;position:relative}.langtoggle{position:absolute;top:0;right:18px;background:#ffffff2e;color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:999px;padding:6px 16px;font-size:13px;font-weight:700;cursor:pointer;font-family:inherit;transition:.15s}.langtoggle:hover{background:#ffffff4d}header.top h1{margin:0 0 6px;font-size:26px;letter-spacing:.5px}header.top p{margin:0;opacity:.92;font-size:14px;max-width:720px}.src{font-size:12px;opacity:.8;margin-top:10px!important}.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:28px 0 20px}.tab{border:1px solid var(--line);background:var(--card);color:var(--muted);padding:9px 16px;border-radius:999px;font-size:14px;cursor:pointer;transition:.15s;font-weight:600;box-shadow:var(--shadow)}.tab:hover{color:var(--ink)}.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px;box-shadow:var(--shadow);margin-bottom:20px}.card h2{margin:0 0 4px;font-size:18px}.card .sub{color:var(--muted);font-size:13px;margin:0 0 16px}.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}.kpi{background:var(--brand-soft);border-radius:14px;padding:16px}.kpi .v{font-size:28px;font-weight:800;color:var(--brand);line-height:1.1}.kpi .l{font-size:13px;color:var(--muted);margin-top:4px}.kpi .d{font-size:12px;margin-top:6px;font-weight:700}.up{color:var(--green)}.down{color:var(--red)}.controls{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:14px}.controls label{font-size:13px;color:var(--muted);font-weight:600}select,.chip{border:1px solid var(--line);border-radius:10px;padding:7px 11px;font-size:14px;background:#fff;color:var(--ink);font-family:inherit}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{cursor:pointer;-webkit-user-select:none;user-select:none}.chip.on{background:var(--brand);color:#fff;border-color:var(--brand)}table{width:100%;border-collapse:collapse;font-size:13.5px}th,td{text-align:right;padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap}th:first-child,td:first-child{text-align:left;white-space:normal}th{color:var(--muted);font-weight:700;cursor:pointer}th.no{cursor:default}tbody tr:hover{background:#fafbfe}.tag{font-size:11px;padding:1px 7px;border-radius:999px;font-weight:700}.tag.easy{background:#e4f6ec;color:var(--green)}.tag.hard{background:#fdeceb;color:var(--red)}.tag.core{background:#fff3e0;color:var(--amber)}.note{background:#fff8ec;border:1px solid #f1e2c4;color:#7a5d23;border-radius:12px;padding:12px 14px;font-size:13px;margin-bottom:18px}.foot{color:var(--muted);font-size:12px;text-align:center;margin-top:30px}.scroll{overflow-x:auto}a{color:var(--brand)}