*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f7fa;--bg2: #ffffff;--bg3: #f0f2f5;--border: #e2e6ea;--text: #1a1d23;--text2: #4a5568;--text3: #8896a7;--accent: #4f46e5;--accent2: #6366f1;--accent-light: #ede9fe;--success: #16a34a;--danger: #dc2626;--warn: #d97706;--qa-color: #0284c7;--qa-bg: #e0f2fe;--talk-color:#7c3aed;--talk-bg: #ede9fe;--radius: 10px;--shadow: 0 2px 12px rgba(0,0,0,.08);--shadow-lg: 0 4px 24px rgba(0,0,0,.12);--transition: all .15s ease}html{scroll-behavior:smooth}body{font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.65;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.layout{display:flex;flex-direction:column;min-height:100vh}.navbar{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 1px 4px #0000000f;padding:0 24px;height:56px;display:flex;align-items:center;gap:20px}.navbar .logo{font-weight:700;font-size:18px;color:var(--accent);letter-spacing:-.5px}.navbar nav{display:flex;gap:4px;flex:1}.navbar nav a{padding:6px 14px;border-radius:6px;color:var(--text2);font-size:14px;font-weight:500;transition:var(--transition)}.navbar nav a:hover{background:var(--bg3);color:var(--text);text-decoration:none}.navbar nav a.active{background:var(--accent-light);color:var(--accent)}.navbar .logout-btn{background:none;border:1px solid var(--border);color:var(--text3);padding:5px 14px;border-radius:6px;cursor:pointer;font-size:13px;transition:var(--transition)}.navbar .logout-btn:hover{color:var(--danger);border-color:var(--danger)}.page-content{max-width:1100px;margin:0 auto;padding:28px 24px;width:100%;flex:1}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:8px;border:none;cursor:pointer;font-size:14px;font-weight:500;transition:var(--transition)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent2)}.btn-ghost{background:transparent;color:var(--text2);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg3);color:var(--text)}.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff}.btn-sm{padding:5px 12px;font-size:12px}.input{background:#fff;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:9px 14px;font-size:14px;font-family:inherit;transition:var(--transition);outline:none;width:100%}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #4f46e51a}.input::placeholder{color:var(--text3)}select.input{cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg 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10px;border-radius:99px;font-size:11px;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.type-badge.qa{background:var(--qa-bg);color:var(--qa-color)}.type-badge.talk{background:var(--talk-bg);color:var(--talk-color)}.card-date{font-size:12px;color:var(--text3);margin-left:auto}.card-question{font-size:13px;color:var(--text2)}.card-question strong{color:var(--text3)}.card-body{font-size:14px;color:var(--text);line-height:1.7}.card-body.truncated{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}mark.highlight{background:#fef08a;color:#713f12;border-radius:3px;padding:0 2px}.card-footer{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.card-stat{font-size:12px;color:var(--text3);display:flex;align-items:center;gap:4px}.card-tags{display:flex;gap:6px;flex-wrap:wrap;margin-left:auto}.tag-badge{padding:2px 10px;border-radius:99px;font-size:11px;font-weight:500}.bookmark-btn{background:none;border:none;cursor:pointer;font-size:18px;line-height:1;color:var(--text3);transition:var(--transition);padding:2px 4px}.bookmark-btn:hover,.bookmark-btn.active{color:var(--warn)}.search-bar{display:flex;gap:10px;margin-bottom:16px}.search-bar .input{flex:1}.filter-panel{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px;padding:14px 16px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.filter-panel label{font-size:12px;color:var(--text3);display:flex;flex-direction:column;gap:4px}.filter-panel .input{width:auto;min-width:120px;padding:6px 10px;font-size:13px}.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:28px}.pagination .page-info{font-size:13px;color:var(--text3);padding:0 8px}.comments-section{margin-top:24px}.comments-section h3{font-size:15px;color:var(--text2);margin-bottom:12px;font-weight:600}.comment-item{padding:12px 0;border-bottom:1px solid var(--border);font-size:13px}.comment-item:last-child{border-bottom:none}.comment-author{color:var(--accent);font-weight:500}.comment-reply{color:var(--text3)}.comment-text{color:var(--text);margin-top:3px}.comment-time{font-size:11px;color:var(--text3);margin-top:4px}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f0f4ff,#f5f7fa,#fdf4ff)}.login-box{width:360px;padding:40px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:20px}.login-box h1{font-size:26px;font-weight:700;color:var(--accent);text-align:center;letter-spacing:-.5px}.login-box .sub{font-size:13px;color:var(--text3);text-align:center}.login-error{color:var(--danger);font-size:13px;text-align:center}.detail-page 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.tags-row{display:flex;gap:6px;flex-wrap:wrap;align-items:center}.tag-badge.removable{cursor:pointer}.tag-badge.removable:hover{opacity:.75}@media (max-width: 640px){.page-content{padding:16px}.filter-panel{flex-direction:column}.navbar{padding:0 16px}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#9ca3af}.loading{text-align:center;padding:60px;color:var(--text3);font-size:14px}.empty{text-align:center;padding:80px 20px;color:var(--text3)}.empty .empty-icon{font-size:48px;margin-bottom:12px}.results-count{font-size:13px;color:var(--text3);margin-bottom:16px}