/* ==========================================================
   后台 · 管理与样式（沿用中国风主题）
   ========================================================== */
.admin-login {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(120deg, #efe9dc, #ded8c6 60%, #cfd3c8);
}
.login-card {
  width: min(420px, 92vw); padding: 40px 36px; background: rgba(255, 253, 246, 0.96);
  border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow); text-align: center;
  position: relative;
}
.login-card::before {
  content: ""; position: absolute; inset: 8px; border: 1px solid rgba(162, 53, 44, .25); border-radius: 4px; pointer-events: none;
}
.login-title { font-family: var(--font-kai); font-size: 28px; letter-spacing: 8px; margin: 14px 0 4px; }
.login-sub { color: var(--ink-3); font-size: 13px; letter-spacing: 2px; margin-bottom: 24px; }

.admin-shell { display: flex; min-height: 100vh; }

.admin-side {
  width: 216px; flex: 0 0 216px; background: #2c2a25; color: #e8e2d2;
  display: flex; flex-direction: column; padding: 18px 0; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-side .side-brand { display: flex; align-items: center; gap: 10px; padding: 0 18px 16px; border-bottom: 1px solid rgba(232,226,210,.14); }
.admin-side .side-brand img { width: 30px; height: 30px; }
.admin-side .side-brand b { font-family: var(--font-kai); font-size: 20px; letter-spacing: 3px; }
.admin-menu { list-style: none; margin: 12px 0 0; padding: 0; }
.admin-menu a {
  display: flex; align-items: center; gap: 10px; padding: 10px 20px; color: #cfc9b8;
  font-size: 15px; letter-spacing: 1px; transition: .2s; border-left: 3px solid transparent;
}
.admin-menu a:hover { background: rgba(232,226,210,.08); color: #f4f0e5; }
.admin-menu a.active { background: rgba(162,53,44,.22); color: #f7f3e8; border-left-color: var(--seal); }
.admin-menu .mi {
  width: 24px; height: 24px; display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(232,226,210,.35); border-radius: 3px; font-family: var(--font-kai); font-size: 14px;
}
.admin-menu a.active .mi { border-color: var(--seal); color: #f7f3e8; background: var(--seal); }
.side-foot { margin-top: auto; padding: 16px 20px; font-size: 12px; color: #8d8778; }

.admin-main { flex: 1; min-width: 0; display: flex; flex-direction: column; background: var(--paper); }
.admin-top {
  display: flex; align-items: center; gap: 14px; padding: 14px 24px;
  border-bottom: 1px solid var(--line); background: rgba(255,253,246,.7); position: sticky; top: 0; z-index: 30;
}
.admin-top h1 { font-family: var(--font-kai); font-size: 20px; letter-spacing: 3px; margin: 0; }
.admin-top .grow { flex: 1; }
.admin-content { padding: 22px 24px 60px; }

.panel { background: #fffdf6; border: 1px solid var(--line); border-radius: 4px; margin-bottom: 20px; }
.panel-head {
  display: flex; align-items: center; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--line);
  font-family: var(--font-kai); font-size: 18px; letter-spacing: 3px;
}
.panel-head .grow { flex: 1; }
.panel-body { padding: 18px; }
.panel-body.tight { padding: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card {
  padding: 18px; border: 1px solid var(--line); border-radius: 4px; background: #fffdf6; position: relative; overflow: hidden;
}
.stat-card b { display: block; font-family: var(--font-kai); font-size: 32px; color: var(--seal); letter-spacing: 2px; }
.stat-card span { font-size: 13px; color: var(--ink-3); letter-spacing: 2px; }
.stat-card::after {
  content: ""; position: absolute; right: -18px; bottom: -18px; width: 70px; height: 70px;
  border: 1px solid rgba(162,53,44,.18); border-radius: 50%;
}

/* ---------- 表单 ---------- */
.form-row { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.form-row > label { width: 96px; flex: 0 0 96px; text-align: right; line-height: 34px; font-size: 14px; color: var(--ink-2); }
.form-row .ctl { flex: 1; min-width: 0; }
input[type=text], input[type=password], input[type=number], input[type=email], input[type=datetime-local], select, textarea {
  width: 100%; padding: 7px 11px; border: 1px solid var(--line); border-radius: 3px; background: #fffef9;
  font-family: inherit; font-size: 14px; color: var(--ink); outline: none; transition: .2s;
}
input:focus, select:focus, textarea:focus { border-color: var(--seal); box-shadow: 0 0 0 3px rgba(162,53,44,.08); }
textarea { resize: vertical; line-height: 1.8; }
label.check { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; line-height: 34px; }
.hint { font-size: 12px; color: var(--ink-3); margin-top: 4px; }
.inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.btn { padding: 7px 16px; border: 1px solid var(--line); background: #fffef9; border-radius: 3px; cursor: pointer; font-size: 14px; transition: .2s; }
.btn:hover { border-color: var(--ink-2); }
.btn-primary { background: var(--seal); border-color: var(--seal); color: #fdf8ee; }
.btn-primary:hover { background: #8d2b23; }
.btn-qing { background: var(--qing); border-color: var(--qing); color: #f4f0e5; }
.btn-qing:hover { background: #345048; }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--seal); border-color: rgba(162,53,44,.5); }
.btn-danger:hover { background: var(--seal); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 13px; }

/* ---------- 表格 ---------- */
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
table.tbl th { background: rgba(226,219,200,.5); font-weight: 500; color: var(--ink-2); font-size: 13px; letter-spacing: 1px; }
table.tbl tr:hover td { background: rgba(255,253,246,.9); }
table.tbl td.ops { white-space: nowrap; text-align: right; }
.thumb { width: 62px; height: 40px; object-fit: cover; border: 1px solid var(--line); border-radius: 2px; background: var(--paper-2); }
.mini-thumb { width: 90px; height: 56px; object-fit: cover; border: 1px solid var(--line); border-radius: 2px; }

/* ---------- 弹窗 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(20,18,16,.55); z-index: 300; display: flex; align-items: center; justify-content: center; padding: 20px; overflow: auto; }
.modal { width: min(680px, 96vw); background: var(--paper); border-radius: 5px; border: 1px solid var(--line); box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.modal-head { padding: 14px 20px; border-bottom: 1px solid var(--line); font-family: var(--font-kai); font-size: 18px; letter-spacing: 3px; display: flex; align-items: center; }
.modal-head .grow { flex: 1; }
.modal-body { padding: 18px 20px; max-height: 70vh; overflow: auto; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 10px; }
.modal-close { cursor: pointer; color: var(--ink-3); font-size: 20px; line-height: 1; }

/* ---------- 其它 ---------- */
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.chip { display: inline-block; padding: 2px 10px; border: 1px solid var(--line); border-radius: 12px; font-size: 12px; background: #fffef9; }
.chip.on { background: var(--qing); color: #f4f0e5; border-color: var(--qing); }
.chip.off { background: rgba(162,53,44,.1); color: var(--seal); border-color: rgba(162,53,44,.4); }
.tree-child { padding-left: 26px; position: relative; }
.tree-child::before { content: "└"; position: absolute; left: 10px; color: var(--ink-3); }
.msg-box { border: 1px solid var(--line); border-radius: 4px; padding: 14px 16px; margin-bottom: 14px; background: #fffdf6; }
.msg-box .m-head { display: flex; gap: 10px; align-items: center; font-size: 13px; color: var(--ink-3); flex-wrap: wrap; }
.msg-box .m-content { margin: 8px 0; }
.reply-box { margin-top: 8px; display: flex; gap: 8px; align-items: flex-start; }
.reply-box textarea { flex: 1; }

@media (max-width: 860px) {
  .admin-shell { flex-direction: column; }
  .admin-side { width: 100%; flex: none; height: auto; position: static; }
  .admin-menu { display: flex; flex-wrap: wrap; }
  .admin-menu a { border-left: none; border-bottom: 3px solid transparent; padding: 8px 14px; }
  .admin-menu a.active { border-left: none; border-bottom-color: var(--seal); }
  .side-foot { display: none; }
  .form-row { flex-direction: column; }
  .form-row > label { width: auto; text-align: left; line-height: 1.6; }
}