.panel{display:block!important;background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(248,251,255,.94))!important;border:1px solid #e2eaf2!important;border-radius:22px!important;padding:28px 28px 24px!important;box-shadow:0 12px 28px rgba(148,163,184,.1)!important;position:relative!important;overflow:hidden!important}
.panel::before{content:""!important;position:absolute!important;inset:0 0 auto 0!important;height:5px!important;pointer-events:none!important;background:linear-gradient(90deg,#64b5f6 0%,#81c784 35%,#ffb74d 68%,#e57373 100%)!important}
.tr-card{background:#fff;border:1px solid #e2eaf2;border-radius:16px;padding:20px;margin:16px 0;box-shadow:0 6px 16px rgba(148,163,184,.08);position:relative}
.tr-num{position:absolute;top:14px;right:16px;font-size:11px;font-weight:800;color:#90a4ae}
.tr-q{font-size:14px;font-weight:800;color:#1f3552;margin:8px 0 4px}
.mem-table{width:100%;border-collapse:collapse;font-size:13px;margin:10px 0;font-family:"Consolas",monospace}
.mem-table th{background:#1e1e2e;color:#cdd6f4;padding:8px 12px;text-align:center;font-weight:700;border:1px solid #313244}
.mem-table td{padding:8px 12px;text-align:center;border:1px solid #e2eaf2;background:#fafcfe}
.mem-table td.hl{background:#fff3e0;font-weight:800;color:#e65100}
.reveal-btn{display:inline-block;padding:7px 16px;background:#eef3f8;border:1px solid #d5e0ea;border-radius:8px;font-size:12px;font-weight:700;color:#3a5a7c;cursor:pointer;transition:.2s;font-family:inherit;margin-top:6px}
.reveal-btn:hover{background:#e3eefa;border-color:#90caf9}
.tr-answer{display:none;margin-top:10px;padding:14px;background:#f0f6ff;border:1px solid #d0e0f0;border-radius:10px;font-size:13px;line-height:1.8;color:#1f3552}
.tr-answer.show{display:block}
.tr-answer b{color:#e65100}
.diff-filter{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.diff-btn{padding:8px 16px;border-radius:10px;border:2px solid #dce6ef;background:#fff;cursor:pointer;font-weight:700;font-size:13px;color:#5f6f82;transition:.2s;font-family:inherit}
.diff-btn:hover{border-color:#90caf9;color:#1565c0}
.diff-btn.active{background:linear-gradient(135deg,#4a8cc7,#64b5f6);color:#fff;border-color:#4a8cc7}
.sec-tag{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.04em;margin-bottom:8px}
.sec-tag.var{background:#e3f2fd;color:#1565c0}
.sec-tag.arr{background:#e8f5e9;color:#2e7d32}
.sec-tag.ptr{background:#fff3e0;color:#e65100}
.sec-tag.func{background:#f3e5f5;color:#7b1fa2}
.sec-tag.str{background:#fce4ec;color:#c62828}
.sec-tag.adv{background:#e0e0e0;color:#424242}
.tr-card{scroll-margin-top:20px}
.tr-toc-sections{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.tr-toc-sec{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;text-decoration:none;color:#1f3552;font-size:13px;transition:.15s;border:1px solid #eef2f6;background:#fafcfe}
.tr-toc-sec:hover{background:#f0f6ff;border-color:#bdd0e3;transform:translateY(-1px)}
.tr-toc-sec .sec-tag{margin:0;flex-shrink:0}
.tr-toc-sec-title{flex:1;font-weight:700;line-height:1.4}
.tr-toc-sec-count{font-size:11px;color:#90a4ae;font-weight:700;flex-shrink:0}
.tr-toc-nums{display:flex;flex-wrap:wrap;gap:4px}
.tr-toc-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:28px;border-radius:6px;font-size:12px;font-weight:800;text-decoration:none;transition:.15s;font-family:"Consolas",monospace}
.tr-toc-num:hover{transform:translateY(-1px);filter:brightness(1.08)}
.tr-toc-num.var{background:#e3f2fd;color:#1565c0}
.tr-toc-num.arr{background:#e8f5e9;color:#2e7d32}
.tr-toc-num.ptr{background:#fff3e0;color:#e65100}
.tr-toc-num.func{background:#f3e5f5;color:#7b1fa2}
.tr-toc-num.str{background:#fce4ec;color:#c62828}
.tr-toc-num.adv{background:#e0e0e0;color:#424242}
@media(max-width:720px){.tr-toc-sections{grid-template-columns:1fr!important}}