:root{
  --bg:#f6f7fb; --card:#fff; --ink:#1f2430; --sub:#6b7280; --line:#e6e8ef;
  --brand:#ff5a5f; --brand2:#ff8a3d; --accent:#2563eb; --ok:#16a34a;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.65}
a{color:inherit;text-decoration:none}
.wrap{max-width:980px;margin:0 auto;padding:0 18px}
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-weight:700;font-size:18px}
.back{color:var(--accent);font-size:14px}
main.wrap{padding-top:24px;padding-bottom:48px}
h1{font-size:26px;margin:.4em 0 .3em}
h2{font-size:20px;margin:1.4em 0 .6em;border-left:4px solid var(--brand);padding-left:10px}
.lead{color:var(--sub);margin:0 0 18px}
.crumb{display:inline-block;color:var(--accent);font-size:14px;margin-bottom:8px}
.meta{color:var(--sub);font-size:13px;margin-bottom:14px}
.empty{color:var(--sub);background:#fff;border:1px dashed var(--line);padding:40px;text-align:center;border-radius:12px}

/* 卡片网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.15s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.card img{width:100%;height:140px;object-fit:cover;background:#eee}
.card-body{padding:12px 14px}
.card-body h3{font-size:16px;margin:6px 0 4px}
.card-body p{font-size:13px;color:var(--sub);margin:0}
.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;background:#eef2ff;color:#4f46e5}
.badge-视频{background:#ffeef0;color:var(--brand)}
.badge-图文{background:#eafaf0;color:var(--ok)}
.badge-文字{background:#fff5e6;color:#c2740a}

/* 详情页 */
.player{width:100%;max-height:520px;background:#000;border-radius:12px;margin:10px 0}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin:14px 0}
.gallery img{width:100%;border-radius:10px;border:1px solid var(--line);cursor:zoom-in}
.content{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 26px;margin-top:16px;font-size:15px}
.content img{max-width:100%}
.content video{max-width:100%}
.content pre{background:#0f172a;color:#e2e8f0;padding:12px;border-radius:8px;overflow:auto}
.content code{background:#eef2ff;padding:1px 5px;border-radius:5px;font-size:13px}
.content iframe{max-width:100%}

/* 富文本编辑器 */
.editor .toolbar{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:10px}
.editor .toolbar button{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:14px;display:inline-flex;align-items:center;justify-content:center}
.editor .toolbar button:hover{background:#f0f2f8}
.editor .toolbar .sep{width:1px;height:22px;background:var(--line);margin:0 4px}
.editor .toolbar select,.editor .toolbar input[type=color]{height:36px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:0 6px;cursor:pointer}
#editor{min-height:280px;border:1px solid var(--line);border-radius:9px;padding:14px;background:#fff;outline:none;font-size:15px;line-height:1.75;overflow:auto}
#editor:focus{border-color:var(--accent)}
#editor img{max-width:100%;height:auto}
#editor:empty:before{content:attr(placeholder);color:#9aa3b2}
.hint{font-size:12px;color:var(--sub);margin-top:8px}

/* 后台 */
body.admin{background:#eef1f6}
.editor{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:14px;max-width:680px}
.editor label{display:flex;flex-direction:column;font-size:14px;font-weight:600;gap:6px}
.editor input[type=text],.editor input[name=title],.editor input[name=category],.editor textarea{
  font-weight:400;font-size:14px;padding:10px 12px;border:1px solid var(--line);border-radius:9px;width:100%;font-family:inherit}
.editor textarea{resize:vertical}
.editor input[type=file]{font-weight:400;font-size:13px}
.cur{font-weight:400;font-size:13px;color:var(--sub)}
.mini{font-weight:400;color:var(--sub)}
.actions{display:flex;gap:10px;align-items:center}
.btn,.actions button{display:inline-block;padding:10px 18px;border-radius:9px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:14px}
.actions button{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border:none;font-weight:600}
.actions button:hover{opacity:.92}
.list{width:100%;border-collapse:collapse;margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
.list th,.list td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}
.list th{background:#fafbff;font-size:13px;color:var(--sub)}
.list .op a{color:var(--accent);margin-right:10px}
.list tr:last-child td{border-bottom:none}
.foot{border-top:1px solid var(--line);color:var(--sub);font-size:13px;text-align:center;padding:24px}