:root{--bg: #fafafa;--panel: #ffffff;--text: #18181b;--muted: #52525b;--line: #e4e4e7;--soft: #f3f0ff;--accent: #7c3aed;--accent-strong: #6d28d9;--accent-cyan: #06b6d4;--accent-border: rgba(109, 40, 217, .28);--shadow: 0 16px 40px rgba(109, 40, 217, .09);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--radius: 22px;--gradient: linear-gradient(120deg, #7c3aed 0%, #8b5cf6 45%, #06b6d4 100%);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #0c0a12;--panel: #16121f;--text: #f4f4f5;--muted: #a1a1aa;--line: #2e2654;--soft: rgba(167, 139, 250, .14);--accent: #a78bfa;--accent-strong: #c4b5fd;--accent-cyan: #22d3ee;--accent-border: rgba(167, 139, 250, .35);--shadow: 0 20px 50px rgba(0, 0, 0, .5);--shadow-sm: 0 4px 16px rgba(0, 0, 0, .35);--gradient: linear-gradient(120deg, #a78bfa 0%, #c4b5fd 45%, #22d3ee 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p{margin:0;color:var(--muted);font-size:12px;line-height:1.75}.author-box{border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,var(--panel),color-mix(in srgb,var(--bg) 30%,var(--panel)));overflow:hidden}.author-box summary{list-style:none;cursor:pointer;padding:16px 18px;font-size:15px;font-weight:700;color:var(--text);display:flex;align-items:center;justify-content:space-between;gap:12px}.author-box summary::-webkit-details-marker{display:none}.author-box summary:after{content:"展开";font-size:12px;font-weight:700;color:var(--accent);border:1px solid var(--line);background:var(--soft);padding:6px 12px;border-radius:999px;flex-shrink:0}.author-box[open] summary:after{content:"收起"}.author-content{border-top:1px solid var(--line);padding:0 18px 18px}.author-content p{margin:14px 0 0;color:var(--muted);font-size:14px;line-height:1.9}.result-actions{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}.btn-link{display:inline-block;text-decoration:none;background:var(--gradient);color:#fff;font-weight:700;padding:13px 20px;border-radius:14px;font-size:14px;box-shadow:0 8px 22px #6d28d940;transition:opacity .15s,transform .15s,box-shadow .15s}.btn-link:hover{opacity:.9;transform:translateY(-1px);box-shadow:0 12px 28px #6d28d959;text-decoration:none}.bottom-nav .nav-inner{height:auto;padding-top:14px;padding-bottom:14px}.bottom-nav-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}.bottom-nav-links a{font-size:12px;color:var(--muted);text-decoration:none;transition:color .15s}.bottom-nav-links a:hover{color:var(--accent)}@media(max-width:600px){.shell{padding:14px 12px 42px}.quiz-hero{padding:22px 18px 16px}.question-list{padding:16px}.topbar{padding:12px 16px 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