/* ==========================================================
   AI 创作中心 样式
   命名空间 .ai-*，其余复用 layouts/app 的 .btn/.card/.field/.container
   ========================================================== */

/* ---------- 通栏 Hero ---------- */
.ai-hero{background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 55%,#0ea5e9 100%);color:#fff;padding:44px 0 38px}
.ai-hero .inner{max-width:1180px;margin:0 auto;padding:0 16px}
.ai-hero h1{font-size:32px;font-weight:800;letter-spacing:.5px;margin-bottom:10px}
.ai-hero p{opacity:.9;font-size:15px;margin-bottom:18px}
.ai-hero .quick{display:flex;flex-wrap:wrap;gap:10px}
.ai-hero .quick a{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;padding:7px 15px;border-radius:999px;font-size:13px;backdrop-filter:blur(4px)}
.ai-hero .quick a:hover{background:#fff;color:#4f46e5}
.ai-stats{display:flex;gap:26px;flex-wrap:wrap;margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.2)}
.ai-stats div{font-size:12px;opacity:.85}
.ai-stats b{display:block;font-size:21px;font-weight:800;opacity:1;margin-bottom:2px}

/* ---------- 工具广场 ---------- */
.ai-tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.ai-tool{position:relative;background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px;cursor:pointer;transition:.18s;display:block}
.ai-tool:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(79,70,229,.13);border-color:#c7d2fe}
.ai-tool .ico{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.ai-tool h3{font-size:17px;font-weight:700;margin-bottom:6px}
.ai-tool p{font-size:13px;color:var(--muted);min-height:38px;line-height:1.5}
.ai-tool .tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.ai-tool .tags span{font-size:11px;background:#f1f5f9;color:#64748b;padding:2px 8px;border-radius:6px}
.ai-tool .go{margin-top:14px;font-size:13px;color:var(--primary);font-weight:600}

/* ---------- 通用区块 ---------- */
.ai-block{margin-top:30px}
.ai-block h2{font-size:18px;font-weight:700;margin-bottom:4px}
.ai-block .sub{font-size:13px;color:var(--muted);margin-bottom:12px}
.ai-topic{display:flex;flex-wrap:wrap;gap:9px}
.ai-topic a{background:#fff;border:1px solid var(--border);border-radius:999px;padding:6px 14px;font-size:13px;color:#475569}
.ai-topic a:hover{border-color:var(--primary);color:var(--primary);background:#eef2ff}

/* ---------- 工作台：左参数 / 右预览 ---------- */
.ai-crumb{font-size:13px;color:var(--muted);margin-bottom:10px}
.ai-crumb a{color:var(--primary)}
.ai-head h1{font-size:24px;font-weight:800}
.ai-head p{color:var(--muted);font-size:14px;margin-top:5px}
.ai-work{display:grid;grid-template-columns:400px 1fr;gap:20px;align-items:start;margin-top:18px}
.ai-panel,.ai-preview{background:#fff;border:1px solid var(--border);border-radius:14px}
.ai-panel{padding:18px}
.ai-panel .ptitle{font-size:14px;font-weight:700;margin:16px 0 8px;display:flex;align-items:center;gap:6px}
.ai-panel .ptitle:first-child{margin-top:0}
.ai-panel .ptitle::before{content:'';width:3px;height:14px;background:var(--primary);border-radius:2px}
.ai-opts{display:flex;flex-wrap:wrap;gap:8px}
.ai-opt{border:1px solid var(--border);background:#fff;border-radius:8px;padding:6px 12px;font-size:13px;cursor:pointer;color:#475569;user-select:none;transition:.15s}
.ai-opt:hover{border-color:#a5b4fc}
.ai-opt.on{background:#eef2ff;border-color:var(--primary);color:var(--primary);font-weight:600}
.ai-run{margin-top:16px;display:flex;gap:10px;align-items:center}
.ai-run .btn{flex:1;padding:11px 18px;font-size:15px;font-weight:600}
.ai-cost{font-size:12px;color:var(--muted);margin-top:8px;text-align:center}

/* ---------- 预览 / 输出 ---------- */
.ai-preview{min-height:520px;display:flex;flex-direction:column}
.ai-bar{display:flex;align-items:center;gap:8px;padding:10px 14px;border-bottom:1px solid var(--border);flex-wrap:wrap}
.ai-bar .sp{flex:1}
.ai-bar button,.ai-bar a{font-size:12px;padding:5px 11px;border-radius:7px;border:1px solid var(--border);background:#fff;color:#475569;cursor:pointer}
.ai-bar button:hover,.ai-bar a:hover{border-color:var(--primary);color:var(--primary)}
.ai-body{flex:1;padding:18px;overflow:auto}
.ai-empty{height:100%;min-height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#94a3b8;text-align:center;padding:20px}
.ai-empty svg{opacity:.5;margin-bottom:14px}
.ai-empty p{font-size:13px}
.ai-empty small{display:block;margin-top:8px;font-size:12px;color:#b6c0ce}

/* 骨架屏 */
.ai-skel{padding:6px 0}
.ai-skel i{display:block;height:14px;border-radius:6px;background:linear-gradient(90deg,#eef2f7 25%,#f8fafc 37%,#eef2f7 63%);background-size:400% 100%;animation:aiShine 1.3s ease infinite;margin-bottom:12px}
@keyframes aiShine{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- Markdown 渲染 ---------- */
.ai-md{font-size:14.5px;line-height:1.85;color:#1f2937}
.ai-md h1,.ai-md h2,.ai-md h3,.ai-md h4{font-weight:700;line-height:1.4;margin:22px 0 10px}
.ai-md h1{font-size:21px;padding-bottom:8px;border-bottom:2px solid var(--primary)}
.ai-md h2{font-size:18px;padding-left:10px;border-left:4px solid var(--primary)}
.ai-md h3{font-size:15.5px;color:#3730a3}
.ai-md p{margin:10px 0}
.ai-md ul,.ai-md ol{margin:10px 0 10px 22px}
.ai-md li{margin:5px 0}
.ai-md blockquote{margin:12px 0;padding:8px 14px;background:#f8fafc;border-left:3px solid #cbd5e1;color:#475569}
.ai-md code{background:#f1f5f9;padding:1px 5px;border-radius:4px;font-size:13px}
.ai-md pre{background:#0f172a;color:#e2e8f0;padding:14px;border-radius:10px;overflow:auto;font-size:13px}
.ai-md pre code{background:none;color:inherit;padding:0}
.ai-md table{width:100%;border-collapse:collapse;margin:12px 0;font-size:13px}
.ai-md th,.ai-md td{border:1px solid var(--border);padding:7px 10px;text-align:left}
.ai-md th{background:#f8fafc}
.ai-md hr{border:none;border-top:1px dashed var(--border);margin:18px 0}
.ai-md strong{font-weight:700;color:#111827}

/* ---------- PPT 大纲卡片 ---------- */
.ai-slides{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.ai-slide{border:1px solid var(--border);border-radius:12px;padding:14px;background:#fff;transition:.15s}
.ai-slide:hover{border-color:#a5b4fc;box-shadow:0 6px 18px rgba(79,70,229,.1)}
.ai-slide .no{font-size:11px;color:#fff;background:var(--primary);border-radius:6px;padding:1px 7px;display:inline-block;margin-bottom:8px}
.ai-slide h4{font-size:14.5px;font-weight:700;margin-bottom:8px;color:#1f2937}
.ai-slide ul{margin-left:18px;font-size:13px;color:#4b5563}
.ai-slide li{margin:4px 0}

/* ---------- 简历 A4 纸 ---------- */
.ai-paper-wrap{background:#eef2f7;padding:16px;display:flex;justify-content:center}
.ai-paper{background:#fff;width:100%;max-width:760px;box-shadow:0 6px 24px rgba(15,23,42,.12);border-radius:6px;padding:34px 40px;font-size:14px;line-height:1.75}
.ai-paper h1{font-size:24px;font-weight:800;margin:0 0 2px}
.ai-paper h2{font-size:15px;font-weight:700;margin:20px 0 8px;padding-bottom:5px;border-bottom:2px solid #4f46e5}
.ai-paper h3{font-size:14px;font-weight:700;margin:14px 0 4px}
.ai-paper p{margin:6px 0}
.ai-paper ul{margin:6px 0 6px 20px}
.ai-paper li{margin:3px 0}
.ai-paper .contact{color:#4b5563;font-size:13px;margin-bottom:6px}

/* ---------- 结果工具条 / 提示 ---------- */
.ai-note{margin-top:14px;background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:10px;padding:11px 14px;font-size:13px}
.ai-tpl{margin-top:16px;border:1px dashed var(--border);border-radius:12px;padding:14px}
.ai-tpl h4{font-size:14px;font-weight:700;margin-bottom:10px}
.ai-tplrow{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.ai-tplrow a{display:block;background:#fff;border:1px solid var(--border);border-radius:9px;padding:8px;font-size:12.5px;color:#374151}
.ai-tplrow a:hover{border-color:var(--primary);color:var(--primary)}
.ai-tplrow img{width:100%;height:74px;object-fit:cover;border-radius:6px;margin-bottom:6px;background:#f1f5f9}

/* 历史记录 */
.ai-hist{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.ai-hist .h{border:1px solid var(--border);border-radius:11px;padding:12px 14px;background:#fff}
.ai-hist .h b{font-size:13.5px}
.ai-hist .h p{font-size:12px;color:var(--muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ai-hist .h span{font-size:11px;color:#94a3b8;margin-top:6px;display:block}

/* FAQ */
.ai-faq{border:1px solid var(--border);border-radius:12px;background:#fff;overflow:hidden}
.ai-faq details{border-bottom:1px solid var(--border)}
.ai-faq details:last-child{border-bottom:none}
.ai-faq summary{padding:13px 16px;cursor:pointer;font-size:14px;font-weight:600}
.ai-faq details p{padding:0 16px 14px;font-size:13px;color:var(--muted)}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
    .ai-work{grid-template-columns:1fr}
    .ai-preview{min-height:420px}
    .ai-hero h1{font-size:25px}
    .ai-paper{padding:22px 20px}
}

/* ---------- 打印：只输出右侧成果 ---------- */
@media print{
    header,footer,.ai-crumb,.ai-head,.ai-panel,.ai-bar,.ai-note,.ai-block,.ai-empty{display:none!important}
    body{background:#fff!important}
    .container{max-width:100%!important;padding:0!important}
    .ai-work{display:block!important}
    .ai-preview{border:none!important;border-radius:0!important;min-height:auto!important}
    .ai-body{padding:0!important;overflow:visible!important}
    .ai-paper-wrap{padding:0!important;display:block!important}
    .ai-paper{box-shadow:none!important;max-width:100%!important;padding:0!important}
    .ai-slides{grid-template-columns:1fr 1fr}
    .ai-slide,.ai-md h1,.ai-md h2{break-inside:avoid}
}