*{box-sizing:border-box}body{margin:0;background:#f6f8fb;color:#172033;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{text-decoration:none;color:inherit}button,input,textarea,select{font:inherit}.top{height:64px;background:#fff;border-bottom:1px solid #e7eaf0;display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100% - 1180px)/2));position:sticky;top:0;z-index:5}.brand{font-weight:900;letter-spacing:.5px}.brand span{font-size:10px;letter-spacing:2px;color:#5261d8;margin-left:7px}.top nav{display:flex;gap:20px;color:#667085;font-size:14px}.hero{text-align:center;padding:88px 20px 70px;background:#fff}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:800;color:#5261d8}.hero h1,.aiwrap h1{font-size:48px;letter-spacing:-2px;margin:18px 0 10px}.hero p,.aiwrap>p{color:#667085}.search{max-width:720px;margin:30px auto 0;display:flex;background:#fff;border:1px solid #dfe3eb;border-radius:14px;padding:6px}.search input{flex:1;border:0;outline:0;padding:14px;font-size:16px}.search button,.primary{border:0;background:#172033;color:#fff;border-radius:10px;padding:12px 20px;font-weight:700;cursor:pointer}.wrap,.aiwrap{max-width:1180px;margin:auto;padding:45px 20px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:15px}.cats{display:grid;grid-template-columns:repeat(7,1fr);gap:12px;margin:20px 0 50px}.cat,.card,.panel,.stats div,.answer,.login,.conv,.msg{background:#fff;border:1px solid #e8ebf0;border-radius:14px}.cat{display:block;text-align:center;padding:18px 5px;cursor:pointer;color:inherit;transition:border-color .15s}.cat:hover{border-color:#172033}.cat.active{outline:2px solid #172033}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{padding:18px}.card-main{display:block}.card h3{margin:10px 0 5px}.card p{color:#667085;min-height:42px}.badge,.muted{font-size:12px;color:#667085}.card-actions{display:flex;justify-content:space-between;align-items:center;margin-top:15px;padding-top:12px;border-top:1px solid #eef0f3;font-size:12px;color:#98a2b3}.star{border:0;background:none;font-size:20px;color:#c3c8d1;cursor:pointer}.star.on{color:#f5a623}.ghost{border:1px solid #dfe3eb;background:#fff;border-radius:9px;padding:8px 13px;cursor:pointer}.aiwrap{max-width:900px}.aiwrap textarea,.login input,.panel input,.panel select{width:100%;border:1px solid #dfe3eb;border-radius:12px;padding:14px;margin:10px 0}.aiwrap textarea{height:130px;margin-top:20px;resize:vertical}.answer{margin-top:20px;padding:20px;white-space:pre-wrap;line-height:1.7}.messages{max-height:500px;overflow:auto;margin:20px 0}.msg{padding:14px 17px;margin:10px 0;line-height:1.7}.msg.user{background:#f0f3f8}.msg b{display:block;font-size:12px;margin-bottom:5px}.ai-layout{max-width:1250px;margin:auto;display:grid;grid-template-columns:250px 1fr;min-height:calc(100vh - 64px)}.ai-side{background:#fff;border-right:1px solid #e8ebf0;padding:25px 15px}.conv{display:block;width:100%;text-align:left;padding:10px 12px;margin:8px 0;border:0;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv.active{outline:2px solid #172033}.login{max-width:380px;margin:12vh auto;padding:35px}.login h1{margin:25px 0}.login .primary{width:100%;margin:12px 0}.login a{text-align:center;display:block}.err{color:#b42318}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin:20px 0}.stats div{padding:20px}.stats b{display:block;font-size:30px;margin-top:5px}.panel{padding:22px;margin:20px 0}.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.panel label{display:inline-flex;gap:7px;align-items:center;margin:10px 15px 10px 0}.panel label input{width:auto;margin:0}.admin-form{padding:15px;background:#f8fafc;border-radius:12px;margin:15px 0}.hidden{display:none}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:12px 8px;border-bottom:1px solid #eef0f3;vertical-align:top}th{color:#667085;font-weight:600}.mini{border:1px solid #dfe3eb;background:#fff;border-radius:7px;padding:5px 9px;cursor:pointer}small{color:#98a2b3}footer{text-align:center;padding:50px;color:#98a2b3}@media(max-width:800px){.hero h1,.aiwrap h1{font-size:34px}.cats{grid-template-columns:repeat(3,1fr)}.grid{grid-template-columns:1fr}.stats,.row{grid-template-columns:1fr}.ai-layout{display:block}.ai-side{border-right:0;border-bottom:1px solid #e8ebf0}.top nav{gap:10px}.top{padding:0 12px}}
.detail{max-width:850px;margin:30px auto;padding:40px}.detail h1{font-size:42px;margin:12px 0}.lead{font-size:18px;color:#667085;line-height:1.8}.inline{display:inline-block}.ai-send-row{display:flex;gap:15px;align-items:center}.msg.assistant pre{background:#111827;color:#fff;padding:15px;border-radius:10px;overflow:auto}.msg.assistant code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f2f4f7;padding:2px 5px;border-radius:4px}.msg.assistant pre code{background:none;padding:0}.conv{color:#172033}.panel h2{margin-top:0}
.simple-chart{padding:8px 0}.bar-row{display:grid;grid-template-columns:90px 1fr 50px;gap:10px;align-items:center;margin:8px 0;font-size:12px}.bar-row i{display:block;height:12px;background:#172033;border-radius:99px;min-width:3px}.bar-row b{text-align:right}.lead{margin-bottom:25px}

textarea,input,select{max-width:100%;box-sizing:border-box}.narrow{max-width:720px;margin:30px auto}.narrow input,.narrow select,.narrow textarea{width:100%;margin:8px 0;padding:12px}.admin-form{padding:16px 0}.hidden{display:none}.mini{padding:5px 8px;margin:2px}.health-online{font-weight:700}

.ad-slot{max-width:1180px;margin:16px auto;padding:8px 20px;text-align:center}.ad-slot img{max-width:100%;height:auto;border-radius:10px}.ad-label{font-size:10px;color:#98a2b3;letter-spacing:1px;margin-bottom:5px}.ad-placeholder{border:1px dashed #d8dde6;border-radius:10px;padding:18px;color:#98a2b3;background:#fafbfc}.ad-slot iframe{max-width:100%;border:0}code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f2f4f7;padding:2px 5px;border-radius:4px}
.recommend-tag{font-size:11px}.ad-slot{min-height:0}.ad-html{overflow:hidden}.panel .section-head h2{margin-bottom:0}.table-wrap code{font-size:11px}

.admin-body{background:#f4f6fa}.admin-shell{max-width:1500px;margin:0 auto;display:grid;grid-template-columns:210px minmax(0,1fr);min-height:calc(100vh - 64px)}.admin-side{background:#111827;color:#d1d5db;padding:18px 12px;position:sticky;top:64px;height:calc(100vh - 64px);overflow:auto}.admin-user{padding:12px 10px 18px;border-bottom:1px solid #263041;margin-bottom:10px;font-size:13px}.admin-tab{width:100%;border:0;background:transparent;color:#cbd5e1;text-align:left;padding:11px 12px;border-radius:9px;margin:2px 0;cursor:pointer}.admin-tab:hover,.admin-tab.active{background:#273449;color:#fff}.admin-main{padding:28px;min-width:0}.admin-tab-panel{display:none}.admin-tab-panel.active{display:block}.admin-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.admin-title h1{margin:0 0 5px}.admin-title p{margin:0;color:#667085}.admin-stats{grid-template-columns:repeat(6,1fr)}.admin-stats div span,.stats div span{font-size:12px;color:#667085}.admin-grid-2{display:grid;grid-template-columns:1.3fr 1fr;gap:20px}.status-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.status-grid div{padding:12px;background:#f8fafc;border-radius:10px}.status-grid span{display:block;color:#667085;font-size:12px}.status-grid b{font-size:14px}.todo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.todo-grid>div{background:#f8fafc;border:1px solid #e8ebf0;border-radius:12px;padding:16px}.todo-grid b{font-size:24px;display:block;margin:8px 0}.filter-row{display:flex;gap:10px;margin:12px 0 18px}.filter-row input,.filter-row select{flex:1;margin:0}.form-title{font-size:18px;font-weight:800;margin-bottom:8px}.form-msg{margin-left:10px;font-size:13px}.form-msg.ok{color:#027a48}.form-msg.err{color:#b42318}.admin-form textarea{width:100%;border:1px solid #dfe3eb;border-radius:12px;padding:12px;margin:10px 0;resize:vertical}.admin-main .panel{margin:0 0 20px}.admin-main table{background:#fff}.admin-main th{white-space:nowrap}.admin-main .stats{margin:0 0 20px}.admin-main code{word-break:break-all}@media(max-width:1100px){.admin-stats{grid-template-columns:repeat(3,1fr)}.admin-grid-2{grid-template-columns:1fr}.todo-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.admin-shell{display:block}.admin-side{position:static;height:auto;display:flex;overflow:auto;gap:4px}.admin-user{display:none}.admin-tab{width:auto;white-space:nowrap}.admin-main{padding:15px}.admin-stats{grid-template-columns:repeat(2,1fr)}.todo-grid{grid-template-columns:1fr}.filter-row{flex-wrap:wrap}.filter-row>*{min-width:140px}.admin-title{align-items:flex-start;flex-direction:column}}

/* ===== 2026-11-02 两级分类与卡片改版 ===== */
.head-actions{display:flex;align-items:center;gap:10px}
.head-actions .ghost{text-decoration:none;font-size:13px;color:#667085;border:1px solid #e8ebf0;background:#fff;padding:6px 12px;border-radius:9px}
.head-actions .ghost:hover{color:#172033;border-color:#d0d5dd}
.cats{grid-template-columns:repeat(5,1fr);gap:12px}
.cats .cat{display:flex;align-items:center;gap:10px;text-align:left;padding:13px 15px;cursor:pointer;color:inherit;text-decoration:none;transition:border-color .15s,box-shadow .15s}
.cats .cat:hover{border-color:#d0d5dd;box-shadow:0 4px 14px rgba(16,24,40,.06)}
.cat-ico{width:34px;height:34px;flex:none;display:grid;place-items:center;font-size:17px;border-radius:10px;background:#f4f6fa}
.cat-body{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.cat-body b{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cat-body em{font-size:11px;color:#98a2b3;font-style:normal;margin-top:2px}

.card{position:relative;display:flex;flex-direction:column;padding:16px 18px 0;transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:#d0d5dd;box-shadow:0 8px 22px rgba(16,24,40,.07)}
.card-main{display:block;text-decoration:none;color:inherit;flex:1}
.card-head{display:flex;align-items:center;gap:11px;margin-bottom:11px}
.card-ico{width:38px;height:38px;flex:none;display:grid;place-items:center;font-size:18px;border-radius:11px;background:var(--c,#6366f1);background:linear-gradient(150deg,var(--c,#6366f1),color-mix(in srgb,var(--c,#6366f1) 55%,#fff));box-shadow:0 2px 6px rgba(16,24,40,.12)}
.card .card-head h3{margin:0;font-size:15px;font-weight:600;line-height:1.35;color:#172033;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word}
.card p.card-desc{margin:0 0 13px;min-height:40px;color:#667085;font-size:13px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p.card-desc.is-empty{color:#b0b7c3}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding:10px 0;border-top:1px dashed #e8ebf0;font-size:12px}
.card-cat{color:#667085;text-decoration:none;max-width:66%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-cat:hover{color:#172033}
.card-open{color:#172033;font-weight:500;text-decoration:none;white-space:nowrap}
.card-open:hover{color:#0ea5e9}
.card .star{position:absolute;top:9px;right:9px;opacity:0;transition:opacity .15s;font-size:17px;line-height:1}
.card:hover .star,.card .star.on{opacity:1}
.card.empty-tip{color:#98a2b3;text-align:center;padding:26px 18px}

/* 分类页：一级页顶部二级分类胶囊 */
.subcats{display:flex;flex-wrap:wrap;gap:9px;margin:16px 0 6px}
.subcats a{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border:1px solid #e8ebf0;background:#fff;border-radius:999px;font-size:13px;color:#475467;text-decoration:none}
.subcats a:hover{border-color:#172033;color:#172033}
.subcats a.on{background:#172033;border-color:#172033;color:#fff}
.subcats a i{font-style:normal;font-size:11px;opacity:.62}
.crumb{margin:0 0 6px;font-size:12px;color:#98a2b3}
.crumb a{color:#667085;text-decoration:none}
.crumb a:hover{color:#172033}

/* 全部分类页 */
.catgroup{margin:30px 0 0}
.catgroup h2{font-size:16px;margin:0 0 4px;display:flex;align-items:center;gap:8px}
.catgroup h2 em{font-style:normal;font-size:12px;color:#98a2b3;font-weight:400}
.catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}
.catgrid a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 14px;background:#fff;border:1px solid #e8ebf0;border-radius:11px;text-decoration:none;color:#172033;font-size:13px}
.catgrid a:hover{border-color:#d0d5dd;box-shadow:0 4px 12px rgba(16,24,40,.05)}
.catgrid a span{color:#98a2b3;font-size:11px}

/* 详情页简介 */
.detail .lead{white-space:pre-wrap}

@media(max-width:1000px){.cats{grid-template-columns:repeat(3,1fr)}.catgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){.cats{grid-template-columns:repeat(2,1fr)}.catgrid{grid-template-columns:1fr}}