/* ==========================================================================
   潮学古文 — 后台管理
   ========================================================================== */

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  min-height:100vh;background:#f5ecdd;color:#231913;
  font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:14px;line-height:1.7;
  background-image:
    radial-gradient(1100px 520px at 50% -8%,#fffaf0 0%,rgba(255,250,240,0) 60%),
    radial-gradient(760px 460px at 100% 100%,#f0e2cc 0%,rgba(240,226,204,0) 70%);
}

button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}
a{color:#9a1b21;text-decoration:none}

/* ---------------- 登录 ---------------- */

.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.login-card{
  width:400px;max-width:100%;background:#fdf8ef;border:1px solid #e3d2b6;border-radius:8px;
  box-shadow:0 18px 50px -22px rgba(81,44,25,.45);overflow:hidden;
}
.login-head{
  background:linear-gradient(180deg,#7e1419,#5f0e12);color:#f7e8c9;padding:26px 30px 22px;
  display:flex;align-items:center;gap:12px;
}
.login-head .seal{
  width:42px;height:42px;border-radius:6px;flex:none;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#c62a30,#8d151a 60%,#6d1015);color:#fff4dd;
  font-family:"Kaiti SC","STKaiti","KaiTi",serif;font-size:24px;border:1px solid rgba(216,186,125,.5);
}
.login-head b{display:block;font-size:17px;letter-spacing:.14em}
.login-head i{font-style:normal;font-size:11px;color:rgba(216,186,125,.8);letter-spacing:.2em}
.login-body{padding:26px 30px 30px}
.login-body h3{margin:0 0 18px;font-size:15px;color:#6b1015;letter-spacing:.2em}

.field{margin-bottom:15px}
.field label{display:block;font-size:12px;color:#8a7360;letter-spacing:.1em;margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:9px 12px;border:1px solid #e3d2b6;border-radius:4px;background:#fff;outline:0;
  transition:border .2s;
}
.field input:focus,.field textarea:focus,.field select:focus{border-color:#b08a3e}
.field textarea{resize:vertical;min-height:90px;line-height:1.8}
.cap-row{display:flex;gap:10px;align-items:center}
.cap-row input{flex:1}
.cap-img{width:120px;height:40px;flex:none;border:1px solid #e3d2b6;border-radius:4px;cursor:pointer;display:block}
.cap-refresh{flex:none;font-size:12px;color:#9a1b21;background:none;border:0;padding:4px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 20px;border-radius:4px;
  border:1px solid #9a1b21;background:#9a1b21;color:#fff;font-size:14px;letter-spacing:.12em;transition:.2s;
}
.btn:hover{background:#7c1418}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.ghost{background:none;color:#9a1b21}
.btn.ghost:hover{background:rgba(154,27,33,.07)}
.btn.sm{padding:5px 12px;font-size:12.5px}
.btn.gold{background:#b08a3e;border-color:#b08a3e}
.btn.gold:hover{background:#96742f}
.btn.danger{background:#fff;border-color:#c0392b;color:#c0392b}
.btn.danger:hover{background:#fdf0ee}

.login-msg{min-height:20px;font-size:12.5px;color:#c0392b;margin:4px 0 10px}
.login-msg.ok{color:#2e7d32}
.login-tip{margin-top:14px;font-size:12px;color:#8a7360;border-top:1px dashed #e3d2b6;padding-top:12px;line-height:1.9}

/* ---------------- 布局 ---------------- */

.app{display:flex;min-height:100vh}
.side{
  width:210px;flex:none;background:linear-gradient(180deg,#7e1419,#5f0e12);color:#f0e2c6;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
}
.side-brand{padding:22px 20px 18px;border-bottom:1px solid rgba(216,186,125,.25);display:flex;gap:10px;align-items:center}
.side-brand .seal{
  width:36px;height:36px;border-radius:5px;display:flex;align-items:center;justify-content:center;flex:none;
  background:linear-gradient(160deg,#c62a30,#8d151a 60%,#6d1015);color:#fff4dd;
  font-family:"Kaiti SC","STKaiti","KaiTi",serif;font-size:20px;border:1px solid rgba(216,186,125,.5);
}
.side-brand b{font-size:15px;letter-spacing:.12em;color:#fdf2dc}
.side-brand i{font-style:normal;display:block;font-size:10px;color:rgba(216,186,125,.7);letter-spacing:.2em}
.side-nav{flex:1;padding:12px 10px}
.side-nav a{
  display:flex;align-items:center;gap:10px;padding:10px 14px;margin:2px 0;border-radius:4px;
  color:rgba(240,226,198,.85);font-size:13.5px;letter-spacing:.08em;cursor:pointer;transition:.2s;
}
.side-nav a:hover{background:rgba(255,240,210,.08);color:#fdf2dc}
.side-nav a.on{background:rgba(255,240,210,.14);color:#fff;font-weight:600}
.side-foot{padding:14px 18px;border-top:1px solid rgba(216,186,125,.25);font-size:12px;color:rgba(216,186,125,.75)}
.side-foot a{color:#f0e2c6;cursor:pointer}

.main{flex:1;min-width:0;padding:26px 30px 60px}
.crumb{font-size:12px;color:#8a7360;letter-spacing:.14em;margin-bottom:6px}
.main h2{margin:0 0 22px;font-size:21px;color:#6b1015;letter-spacing:.1em;font-weight:600}

.panel{background:#fdf8ef;border:1px solid #e3d2b6;border-radius:6px;padding:20px 22px;margin-bottom:18px}
.panel h4{margin:0 0 14px;font-size:14px;color:#6b1015;letter-spacing:.14em}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
.stat-card{background:#fff;border:1px solid #e3d2b6;border-radius:6px;padding:16px 18px}
.stat-card b{display:block;font-size:24px;color:#9a1b21;font-family:Georgia,serif}
.stat-card span{font-size:12px;color:#8a7360;letter-spacing:.08em}

.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.bar{
  display:flex;align-items:center;gap:14px;background:#fff8e8;border:1px solid #e6d9a8;border-radius:6px;
  padding:10px 16px;margin-bottom:16px;font-size:13px;color:#7a5b16;
}
.bar.ok{background:#eef7ee;border-color:#bcdcc0;color:#2e5d33}

table.list{width:100%;border-collapse:collapse;background:#fff;font-size:13px}
table.list th,table.list td{border-bottom:1px solid #eee2cc;padding:9px 10px;text-align:left;vertical-align:middle}
table.list th{font-weight:600;color:#8a7360;font-size:12px;letter-spacing:.08em;background:#faf4e6}
table.list tr:hover td{background:#fdf9ef}
table.list td.op{white-space:nowrap}
.badge{display:inline-block;font-size:11px;padding:1px 8px;border-radius:10px;letter-spacing:.06em}
.badge.ov{background:#fdeaea;color:#9a1b21;border:1px solid #eec3c5}
.badge.kind{background:#f2ede0;color:#6b5b3e;border:1px solid #e0d4b8}

.pager{display:flex;gap:8px;align-items:center;margin-top:14px;font-size:13px;color:#8a7360}
.pager button{padding:4px 12px;border:1px solid #e3d2b6;background:#fff;border-radius:3px}
.pager button:disabled{opacity:.4;cursor:default}

.form-2col{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
@media (max-width:720px){.form-2col{grid-template-columns:1fr}}

.toast{
  position:fixed;left:50%;top:26px;transform:translateX(-50%) translateY(-20px);opacity:0;
  background:#3d2e26;color:#f7e8c9;padding:10px 22px;border-radius:4px;font-size:13.5px;z-index:99;
  transition:.3s;pointer-events:none;box-shadow:0 10px 30px -10px rgba(0,0,0,.5);
}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

.block-row{border:1px dashed #e3d2b6;border-radius:5px;padding:12px 14px;margin-bottom:10px;background:#fffdf7}
.block-row .row{margin-bottom:8px}
.block-row textarea{min-height:64px}

.theme-presets{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:20px}
.preset-card{
  border:1px solid #e3d2b6;border-radius:6px;padding:16px;background:#fff;cursor:pointer;transition:.2s;position:relative;
}
.preset-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px -14px rgba(81,44,25,.4)}
.preset-card.on{border-color:#9a1b21;box-shadow:0 0 0 2px rgba(154,27,33,.18)}
.preset-card .sw{display:flex;height:34px;border-radius:4px;overflow:hidden;margin-bottom:10px}
.preset-card .sw i{flex:1}
.preset-card b{font-size:14px;color:#3d2e26}
.preset-card small{display:block;color:#8a7360;font-size:12px}
.color-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px 18px}
.color-item{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#5c4a3a}
.color-item input[type=color]{width:38px;height:30px;border:1px solid #e3d2b6;border-radius:4px;padding:0;background:#fff;cursor:pointer}
.color-item code{color:#8a7360;font-size:11px}

.mono{font-family:Consolas,Menlo,monospace;font-size:12px;color:#5c4a3a;background:#fffdf7;border:1px solid #e3d2b6;border-radius:5px;padding:10px 14px;white-space:pre-wrap;max-height:160px;overflow:auto}

.empty{padding:34px;text-align:center;color:#8a7360;font-size:13px}
.spin{display:inline-block;width:14px;height:14px;border:2px solid rgba(154,27,33,.25);border-top-color:#9a1b21;border-radius:50%;animation:sp .8s linear infinite;vertical-align:-2px;margin-right:6px}
@keyframes sp{to{transform:rotate(360deg)}}

@media (max-width:860px){
  .app{flex-direction:column}
  .side{width:100%;height:auto;position:static;flex-direction:row;align-items:center;overflow-x:auto}
  .side-brand{border:0;padding:14px 16px}
  .side-nav{display:flex;padding:6px}
  .side-nav a{white-space:nowrap}
  .side-foot{display:none}
  .main{padding:20px 16px 50px}
}

/* ---------------- 留言 / 回声 ---------------- */

.nav-badge{
  display:inline-block;min-width:16px;height:16px;line-height:16px;padding:0 5px;margin-left:7px;
  background:#c0392b;color:#fff;border-radius:9px;font-size:11px;text-align:center;vertical-align:1px;font-weight:600;
}
.mini-badge{
  display:inline-block;min-width:16px;height:15px;line-height:15px;padding:0 5px;margin-left:2px;
  background:rgba(154,27,33,.12);color:#9a1b21;border-radius:8px;font-size:11px;text-align:center;
}
.dot-unread{color:#c0392b;font-weight:600;font-size:12px}
.dot-read{color:#a99b83;font-size:12px}
table.list tr.unread td{background:#fdf3e0}
table.list tr.unread td:first-child{box-shadow:inset 3px 0 0 #c0392b}
.msg-detail .msg-meta{font-size:12.5px;color:#8a7360;margin-bottom:10px;line-height:1.9}
.msg-detail .msg-body{
  background:#fff;border:1px solid #e3d2b6;border-radius:4px;padding:14px 16px;
  white-space:pre-wrap;word-break:break-word;line-height:1.95;font-size:13.5px;max-height:340px;overflow:auto;
}

/* ---------------- Markdown 预览 / 栏目设置 ---------------- */

.md-preview{
  border:1px solid #e3d2b6;border-radius:6px;background:#fffdf8;padding:14px 20px;margin-top:10px;
  max-height:420px;overflow:auto;font-size:13.5px;line-height:1.95;color:#231913;
}
.md-preview h2,.md-preview h3,.md-preview h4{margin:14px 0 8px;color:#9a1b21}
.md-preview h2{font-size:17px}.md-preview h3{font-size:15.5px}.md-preview h4{font-size:14px}
.md-preview p{margin:0 0 10px}
.md-preview ul,.md-preview ol{margin:0 0 10px;padding-left:22px}
.md-preview li{margin:3px 0}
.md-preview blockquote{margin:0 0 10px;padding:6px 12px;border-left:3px solid #b08a3e;background:#faf4e6;color:#5c4a3a}
.md-preview code{background:#f2e8d5;border-radius:3px;padding:1px 5px;font-size:12.5px}
.md-preview pre.md-code{background:#2b2320;color:#f0e6d2;border-radius:6px;padding:12px 14px;overflow:auto;margin:0 0 10px}
.md-preview pre.md-code code{background:none;color:inherit;padding:0;font-size:12.5px;line-height:1.8;white-space:pre-wrap}
.md-preview a{color:#9a1b21}
.md-preview img{max-width:100%;border-radius:6px;margin:6px 0}
.md-preview hr{border:0;border-top:1px dashed #d8c8a8;margin:14px 0}
.md-preview del{color:#a99b83}

.nav-row{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px dashed #eee2cc;flex-wrap:wrap}
.nav-row:last-child{border-bottom:0}
.nav-row input[type="text"],.nav-row input[type="number"]{
  border:1px solid #dcc9a6;border-radius:4px;padding:5px 8px;font-size:13px;background:#fff;
}

/* ---------- 栏目编辑器 / 升级记录 ---------- */
.nav-block{border-bottom:1px dashed #e8d9bc;padding:4px 0}
.nav-block:last-child{border-bottom:0}
.nav-sub-row select,.nav-block select{font-size:12.5px}
.log-item{padding:10px 0;border-bottom:1px dashed #eee2cc}
.log-item:last-child{border-bottom:0}
.log-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.log-head b{color:#9a1b21;font-size:13.5px}
.log-date{color:#8a7360;font-size:12px;white-space:nowrap}
.log-note{color:#5c4a3a;font-size:12.5px;line-height:1.9;margin-top:4px}
.log-files{margin-top:5px;font-size:12px;color:#6b5a48;line-height:2}
.log-files code{background:#f2e8d5;border-radius:3px;padding:1px 5px;margin-right:4px}

/* ---------- 移动端底部导航编辑器 ---------- */
.mnav-row{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed #eee2cc;flex-wrap:wrap}
.mnav-row:last-child{border-bottom:0}
.mvF{display:flex;align-items:center;gap:6px;font-size:12.5px;color:#5c4a3a}
.mvF input{border:1px solid #dcc9a6;border-radius:4px;padding:5px 8px;font-size:13px;background:#fff}
.mvF .mvName{width:96px}
.mvF .mvIcon{width:190px;font-family:Consolas,Menlo,monospace;font-size:12.5px}
.mvF .mvHref{width:200px}
.mvF .mvSort{width:62px}
.mvPick{font-size:12.5px;color:#9a1b21;border-bottom:1px solid rgba(154,27,33,.4);padding-bottom:1px}
.mvPick:hover{color:#c62a30}
.mvPrev{width:30px;height:30px;display:inline-grid;place-items:center;border:1px solid #e3d2b6;
  border-radius:4px;background:#fffdf8;color:#9a1b21;font-size:14px}
.mvChk{display:flex;align-items:center;gap:4px;font-size:12.5px;color:#5c4a3a}
.mvDel{flex:none}

/* ---------- 站点设置内部选项卡 ---------- */
.st-tabs{
  display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px;padding:10px 0 12px;
  border-bottom:1px solid #e3d2b6;position:sticky;top:0;z-index:6;
  background:linear-gradient(180deg,#f6eedf 78%,rgba(246,238,223,0));
}
.st-tabs .btn{flex:none}
.st-pane > .panel:last-child{margin-bottom:0}
@media (max-width:820px){
  .st-tabs{gap:6px;padding:8px 0 10px}
  .st-tabs .btn{padding:4px 10px;font-size:12px}
}