:root {
  /* 画布 / 面板 */
  --bg: #f4f6f9;
  --panel: #ffffff;
  --panel-sub: #fafbfc;
  --text: #1b2330;
  --muted: #616b7a;
  --line: #e2e6ec;
  --line-strong: #cfd6de;
  /* 品牌蓝（保留）与导航深海军蓝 */
  --primary: #1f6feb;
  --primary-hover: #1857c2;
  --primary-soft: #eaf2ff;
  --navy: #0f2540;
  --navy-soft: #16314f;
  --danger: #c8371a;
  --danger-bg: #fff2ec;
  --ok: #1f7a3d;
  --ok-bg: #eefaf1;
  --warn: #a85d00;
  --warn-bg: #fff8e8;
  --info: #10559e;
  --info-bg: #eaf4ff;
  --gray-bg: #f1f3f6;
  /* 形状与层级 */
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-1: 0 1px 2px rgba(16, 37, 64, 0.05);
  --shadow-2: 0 1px 2px rgba(16, 37, 64, 0.06), 0 6px 16px rgba(16, 37, 64, 0.06);
  --shadow: var(--shadow-2);
  --shadow-3: 0 12px 32px rgba(16, 37, 64, 0.18);
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
  line-height: 1.6;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 8px 12px;
  z-index: 100;
}
.skip-link:focus { left: 8px; top: 8px; }

.initial-loading {
  padding: 48px;
  text-align: center;
  color: var(--muted);
}

/* Layout */
.shell {
  display: grid;
  /* minmax(0, 1fr)：内容的最小宽度不能把整页顶宽，否则窄屏出现横向溢出 */
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: 100vh;
}
.sidebar {
  background: #10233f;
  color: #dbe4f0;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 12px;
}
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.brand-title { font-weight: 600; font-size: 15px; color: #fff; }
.brand-sub { font-size: 12px; color: #9db0c9; }

.nav-item {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: #c5d2e3;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  cursor: pointer;
}
.nav-item:hover { background: rgba(255, 255, 255, 0.08); color: #fff; text-decoration: none; }
.nav-item.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.nav-section {
  margin: 14px 10px 6px;
  font-size: 12px;
  color: #8aa0bb;
  letter-spacing: 0.04em;
}

.main {
  padding: 24px 28px 48px;
  max-width: 1200px;
  width: 100%;
}
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.page-header h1 {
  margin: 0 0 4px;
  font-size: 22px;
  line-height: 1.3;
}
.page-desc { color: var(--muted); margin: 0; max-width: 720px; }

/* Banner */
.banner {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1px solid;
}
.banner-warn {
  background: var(--warn-bg);
  border-color: #ffd591;
  color: #874d00;
}
.banner-info {
  background: var(--info-bg);
  border-color: #91d5ff;
  color: #0050b3;
}
.banner strong { display: block; margin-bottom: 2px; }

/* Cards & panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  margin-bottom: 16px;
}
.panel h2 {
  margin: 0 0 12px;
  font-size: 16px;
}
.panel h3 {
  margin: 16px 0 8px;
  font-size: 14px;
}
.panel-sub { color: var(--muted); margin: -6px 0 12px; }

.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  cursor: pointer;
  text-align: left;
  width: 100%;
  box-shadow: var(--shadow);
}
.stat-card:hover { border-color: var(--primary); }
.stat-card .label { color: var(--muted); font-size: 13px; }
.stat-card .value { font-size: 26px; font-weight: 700; line-height: 1.2; margin: 2px 0; }
.stat-card .hint { font-size: 12px; color: var(--muted); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; flex-direction: row; flex-wrap: wrap; }
  .nav-item { width: auto; }
  .brand { width: 100%; }
  .grid-2 { grid-template-columns: 1fr; }
  .main { padding: 16px; }
}

/* Tables */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
}
th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
th {
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
  background: #fafbfc;
  white-space: nowrap;
}
tr:hover td { background: #fafcff; }
.table-empty {
  padding: 32px;
  text-align: center;
  color: var(--muted);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.8;
  white-space: nowrap;
}
.badge-green { background: var(--ok-bg); color: var(--ok); border: 1px solid #b7eb8f; }
.badge-orange { background: var(--warn-bg); color: var(--warn); border: 1px solid #ffd591; }
.badge-red { background: var(--danger-bg); color: var(--danger); border: 1px solid #ffbb96; }
.badge-blue { background: var(--info-bg); color: var(--info); border: 1px solid #91d5ff; }
.badge-gray { background: var(--gray-bg); color: var(--muted); border: 1px solid var(--line); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
  font-weight: 500;
  line-height: 1.4;
  min-height: 34px;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; }
.btn-danger {
  background: #fff;
  border-color: #ffa39e;
  color: var(--danger);
}
.btn-danger:hover { background: var(--danger-bg); }
.btn-ghost {
  border-color: transparent;
  background: transparent;
  color: var(--primary);
}
.btn-sm { padding: 4px 10px; min-height: 28px; font-size: 13px; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 16px;
}
@media (max-width: 760px) {
  .form-grid { grid-template-columns: 1fr; }
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-weight: 600; }
.field .req { color: var(--danger); margin-left: 2px; }
.field input[type="text"],
.field input[type="email"],
.field input[type="date"],
.field input[type="number"],
.field select,
.field textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  background: #fff;
  min-height: 36px;
  width: 100%;
}
.field textarea { min-height: 84px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(31, 111, 235, 0.18);
}
.field .help { font-size: 12px; color: var(--muted); }
.field .error {
  color: var(--danger);
  font-size: 13px;
  min-height: 1.2em;
}
.field.invalid input,
.field.invalid select,
.field.invalid textarea {
  border-color: var(--danger);
  background: #fffafa;
}
.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.form-actions .spacer { flex: 1; }

/* Toolbar / filters */
.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 14px;
}
.toolbar input[type="search"],
.toolbar input[type="text"],
.toolbar select {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 10px;
  min-height: 34px;
  background: #fff;
}
.toolbar input[type="search"] { min-width: 220px; }
.toolbar .count { color: var(--muted); margin-left: auto; }

/* Detail list */
.dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px 12px;
}
.dl dt { color: var(--muted); }
.dl dd { margin: 0; }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}
.timeline li:last-child { border-bottom: none; }
.timeline .when { font-size: 12px; color: var(--muted); }
.timeline .what { font-weight: 600; }
.timeline .detail { color: var(--muted); font-size: 13px; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
}
.modal {
  background: #fff;
  border-radius: 10px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  padding: 20px 22px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}
.modal h3 { margin: 0 0 8px; font-size: 17px; }
.modal .modal-body { color: var(--text); }
.modal .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}

/* Toast */
.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: #1f2329;
  color: #fff;
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  max-width: 360px;
  z-index: 60;
}
.toast.show { opacity: 1; }
.toast.error { background: var(--danger); }

/* Empty state */
.empty {
  padding: 28px 16px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: #fafbfc;
}
.empty strong { display: block; color: var(--text); margin-bottom: 4px; }

/* Service status list */
.service-list { list-style: none; padding: 0; margin: 0; }
.service-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.service-list li:last-child { border-bottom: none; }

.preview-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 16px;
}
.preview-page {
  border: 1px dashed var(--line);
  border-radius: 6px;
  padding: 12px;
  margin: 8px 0;
  background: #fafbfc;
}

.kv-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
.muted { color: var(--muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.text-right { text-align: right; }


/* ---- 优化轮次补充 ---- */
.banner-review {
  background: #f0f5ff;
  border-color: #adc6ff;
  color: #1d39c4;
  padding: 8px 12px;
  font-size: 13px;
}
.banner.compact { padding: 8px 12px; font-size: 13px; margin-bottom: 12px; }
.form-block {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
  margin: 0;
}
.form-error-summary {
  background: var(--danger-bg);
  border: 1px solid #ffa39e;
  color: var(--danger);
  padding: 10px 12px;
  border-radius: 6px;
  margin-bottom: 12px;
  font-size: 13px;
}
.nav-foot {
  margin-top: auto;
  padding: 12px 10px;
  font-size: 12px;
  line-height: 1.5;
  color: #8aa0bb;
}
.modal {
  position: relative;
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 8px;
}
.modal-head h3 { margin: 0; }
.modal-close {
  min-width: 32px;
  flex-shrink: 0;
}
.modal-body {
  max-height: 65vh;
  overflow: auto;
}
.series-card { display: flex; flex-direction: column; gap: 12px; }
/* 阶段 A：多模板系列列表 */
.series-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 16px; }
.series-panel { padding-bottom: 14px; }
.series-head {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.series-head h2 { margin: 0; }
.series-head .panel-sub { margin: 2px 0 0; }
.badge-row { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.cover-item .badge-row { margin: 6px 0 4px; }
.series-covers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.cover-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.cover-item img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--line);
}
.cover-meta { padding: 10px 12px 4px; }
.cover-item .btn-row { padding: 8px 12px 12px; }
.preview-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.preview-frame { padding: 8px; }
@media (max-width: 720px) {
  .grid-stats { grid-template-columns: repeat(2, 1fr); }
  .stat-card .value { font-size: 20px; }
}


/* ---- 窄屏防横向溢出 ---- */
@media (max-width: 720px) {
  html, body { overflow-x: hidden; max-width: 100%; }
  .shell { grid-template-columns: minmax(0, 1fr); width: 100%; }
  .sidebar {
    position: relative;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    box-sizing: border-box;
  }
  .brand { width: 100%; }
  .nav-item { width: auto; flex: 1 1 auto; min-width: 0; }
  .nav-foot { width: 100%; margin-top: 8px; }
  .main {
    padding: 12px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
  }
  .grid-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-2 { grid-template-columns: minmax(0, 1fr); }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .dl { grid-template-columns: minmax(0, 1fr); gap: 2px 0; }
  .dl dt { margin-top: 8px; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar input[type=search],
  .toolbar input[type=text],
  .toolbar select { min-width: 0; width: 100%; box-sizing: border-box; }
  .toolbar .count { margin-left: 0; }
  .table-wrap { overflow-x: auto; max-width: 100%; -webkit-overflow-scrolling: touch; }
  table { min-width: 0; }
  th, td { word-break: break-word; max-width: 160px; }
  .series-covers { grid-template-columns: minmax(0, 1fr); }
  .modal { max-width: 100%; box-sizing: border-box; }
  .btn-row { flex-wrap: wrap; }
  .page-header { flex-direction: column; }
}

/* ---------- 模板制作工作台（阶段 B1） ---------- */
.studio { display: grid; gap: 12px; }
.studio-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.studio-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.studio-page-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; margin: 6px 0; }
.studio-module { border: 1px solid var(--line); border-radius: 8px; padding: 10px; margin-bottom: 10px; background: #fff; }
.studio-module-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.studio-fields { display: grid; gap: 8px; margin-top: 8px; }
.studio-field { display: grid; gap: 4px; }
.studio-field input[type=text], .studio-field textarea, .studio-field select { width: 100%; box-sizing: border-box; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; }
.studio-field textarea { font: inherit; }
.studio-item { border: 1px dashed var(--line); border-radius: 6px; padding: 8px; margin-bottom: 6px; }
.studio-item-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.studio-sub { display: grid; gap: 4px; margin-bottom: 6px; }
.studio-sub input, .studio-sub textarea { width: 100%; box-sizing: border-box; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; }
.studio-add { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.studio-section { border-top: 1px solid var(--line); padding-top: 10px; display: grid; gap: 8px; }
.studio-palette { display: flex; gap: 12px; flex-wrap: wrap; }
.studio-color { display: grid; gap: 4px; font-size: 12px; }
.studio-assets, .studio-asset-picker { display: flex; gap: 10px; flex-wrap: wrap; }
.studio-asset { display: grid; gap: 4px; font-size: 12px; max-width: 120px; }
.studio-asset img, .studio-thumb { width: 96px; height: 64px; object-fit: cover; border: 1px solid var(--line); border-radius: 6px; background: #f6f8fa; }
.studio-thumb { display: block; margin-top: 4px; }
.studio-upload { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.studio-preview { border: 1px solid var(--line); border-radius: 8px; padding: 10px; background: #fbfcfd; }
.studio-preview-frame { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 12px; margin-top: 8px; }
.pv-hero { padding: 16px; border-radius: 6px; background: #f2f6fa; }
.pv-hero-media img { width: 100%; max-height: 220px; object-fit: cover; border-radius: 6px; }
.pv-title { font-size: 22px; margin: 8px 0; }
.pv-lead { color: #445; }
.pv-block { padding: 10px 0; }
.pv-imagetext { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.pv-half { flex: 1 1 240px; }
.pv-half img { width: 100%; border-radius: 6px; }
.pv-grid { display: grid; gap: 8px; }
.pv-card { border: 1px solid var(--line); border-radius: 6px; padding: 8px; }
.pv-card-img { background: #eef2f6; border-radius: 4px; padding: 18px 0; text-align: center; margin-bottom: 6px; }
.pv-gallery { display: flex; gap: 8px; flex-wrap: wrap; }
.pv-gallery img { width: 120px; height: 80px; object-fit: cover; border-radius: 6px; }
.pv-btn { display: inline-block; padding: 6px 12px; border-radius: 6px; background: #0f4c81; color: #fff; font-size: 13px; }
.pv-btn-ghost { background: #eef2f6; color: #234; }
.pv-cta { background: #f7f9fb; border-radius: 6px; padding: 12px; }
.pv-note, .pv-empty { color: #667; font-size: 12px; }
.pv-faq { border-bottom: 1px dashed var(--line); padding: 6px 0; }

/* ============================================================
   视觉统一层（2026-11-02）：企业工作台方向
   深海军蓝导航 + 浅灰画布 + 白色面板 + 品牌蓝主操作
   仅样式与布局，不改业务结构；无外部字体/图片请求
   ============================================================ */

/* 侧边导航：稳定、可长时间操作 */
.sidebar {
  background: var(--navy);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  padding: 14px 10px;
  gap: 2px;
}
.brand {
  padding: 6px 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 10px;
}
.brand-title { font-size: 15px; letter-spacing: 0.01em; }
.brand-sub { color: #93a7c0; }
.nav-section {
  margin: 16px 12px 4px;
  font-size: 11px;
  text-transform: none;
  color: #7f94ae;
}
.nav-item {
  position: relative;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: #c6d3e4;
  font-size: 14px;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-item:hover { background: rgba(255, 255, 255, 0.07); color: #fff; }
.nav-item.active {
  background: var(--navy-soft);
  color: #fff;
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--primary);
}
.nav-item.active::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.nav-foot {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #7f94ae;
  padding: 12px 12px 4px;
}

/* 画布与页面标题 */
.main { padding: 22px 26px 56px; }
.page-header {
  align-items: flex-end;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}
.page-header h1 { font-size: 21px; font-weight: 650; letter-spacing: 0.01em; }
.page-desc { font-size: 13px; max-width: 760px; }
.page-header .btn-row { gap: 10px; }

/* 面板：白底 + 细边框 + 轻阴影 */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 16px 18px;
  margin-bottom: 16px;
}
.panel + .panel { margin-top: 0; }
.panel h2 {
  font-size: 15px;
  font-weight: 650;
  margin: 0 0 10px;
  letter-spacing: 0.01em;
}
.panel h3 { font-size: 14px; font-weight: 650; margin: 14px 0 8px; }
.panel-sub { color: var(--muted); font-size: 12.5px; margin: -4px 0 12px; }

/* 统计卡片 */
.grid-stats { gap: 12px; }
.stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 10px 14px;
  text-align: left;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.stat-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-2);
  transform: translateY(-1px);
}
.stat-card .label { font-size: 12.5px; }
.stat-card .value { font-size: 22px; letter-spacing: -0.01em; }
.stat-card .hint { font-size: 12px; }

/* 按钮：主次分明、触控目标足够 */
.btn {
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: #fff;
  min-height: 34px;
  padding: 0 14px;
  font-size: 13.5px;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; }
.btn-danger { color: var(--danger); border-color: #f0c4b8; }
.btn-danger:hover { background: var(--danger-bg); border-color: var(--danger); color: var(--danger); }
.btn-sm { min-height: 30px; padding: 0 10px; font-size: 13px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-row { gap: 10px; }

/* 徽标 */
.badge {
  border-radius: 999px;
  padding: 1px 9px;
  font-size: 12px;
  line-height: 20px;
  font-weight: 500;
}
.badge-green { background: var(--ok-bg); color: var(--ok); border: 1px solid #c3e6cd; }
.badge-orange { background: var(--warn-bg); color: var(--warn); border: 1px solid #f3dcb0; }
.badge-red { background: var(--danger-bg); color: var(--danger); border: 1px solid #f4cec2; }
.badge-blue { background: var(--info-bg); color: var(--info); border: 1px solid #c7e0f7; }
.badge-gray { background: var(--gray-bg); color: var(--muted); border: 1px solid var(--line); }

/* 提示条 */
.banner {
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--panel-sub);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 12px;
}
.banner strong { font-weight: 650; }
.banner-warn { background: var(--warn-bg); border-color: #f3dcb0; }
.banner-info { background: var(--info-bg); border-color: #cfe3f8; }
.banner-review { background: var(--gray-bg); border-color: var(--line-strong); color: var(--muted); padding: 6px 12px; margin-bottom: 10px; }
.banner.compact { padding: 8px 12px; font-size: 12.5px; }

/* 表格：表头吸顶、行间距、操作列不挤 */
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { border-collapse: separate; border-spacing: 0; width: 100%; }
thead th {
  position: sticky;
  top: 0;
  background: var(--panel-sub);
  font-size: 12.5px;
  font-weight: 650;
  color: var(--muted);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
tbody td { padding: 11px 12px; border-bottom: 1px solid #eef1f5; vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbfd; }

/* 工具条 */
.toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  padding: 8px 12px;
}
.toolbar input[type="search"],
.toolbar input[type="text"],
.toolbar select {
  min-height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  padding: 0 10px;
  background: #fff;
}
.toolbar .count { font-size: 12.5px; }

/* 表单 */
.field input[type="text"],
.field input[type="email"],
.field input[type="date"],
.field input[type="number"],
.field input[type="password"],
.field select,
.field textarea {
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  padding: 7px 10px;
  min-height: 34px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.14);
}
.field label { font-size: 13px; }
.field .help { line-height: 1.5; }

/* 弹窗：更宽、头部与底部不互相挤压 */
.modal-backdrop { padding: 28px 16px; background: rgba(11, 21, 38, 0.5); }
.modal {
  max-width: 720px;
  border-radius: 12px;
  padding: 18px 20px 16px;
  box-shadow: var(--shadow-3);
}
.modal-head {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}
.modal-head h3 { font-size: 16.5px; font-weight: 650; }
.modal-body { max-height: 66vh; overflow: auto; padding-right: 2px; }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 12px;
  margin-top: 12px;
  border-top: 1px solid var(--line);
}
/* 工作台 / AI 弹窗内容更长：给足宽度 */
.modal:has(.studio) { max-width: 1000px; }
.modal-backdrop .modal-body .studio { gap: 14px; }

/* 模板库：系列卡片与版本卡片 */
.series-list { gap: 14px; }
.series-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 14px 16px 12px;
}
.series-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}
.series-head h2 { font-size: 16px; font-weight: 650; }
.series-covers { gap: 12px; margin-top: 6px; }
.cover-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-1);
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.cover-item:hover { border-color: var(--line-strong); box-shadow: var(--shadow-2); }
.cover-item img {
  width: 100%;
  /* 固定示意高度：不冒充真实截图，也不让首屏被长图占满 */
  height: 108px;
  object-fit: cover;
  display: block;
  background: #f2f5f9;
  border-bottom: 1px solid var(--line);
}
.cover-meta { padding: 8px 12px 4px; }
.cover-meta strong { font-size: 14px; }
.cover-meta .muted { font-size: 12px; }
.cover-item .btn-row { padding: 6px 12px 10px; gap: 8px; }
/* 示意预览标记：说明这不是当前草稿的真实截图 */
.cover-flag {
  display: inline-block;
  margin: 8px 12px 0;
  padding: 1px 8px;
  font-size: 11.5px;
  color: var(--muted);
  background: var(--gray-bg);
  border: 1px solid var(--line);
  border-radius: 999px;
}

/* 人工工作台分区 */
.studio-meta {
  padding: 8px 10px;
  background: var(--panel-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  gap: 10px;
}
.studio-module {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-1);
  padding: 12px;
}
.studio-module-head { padding-bottom: 8px; border-bottom: 1px dashed var(--line); }
.studio-field label { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.studio-field input[type="text"],
.studio-field textarea,
.studio-field select {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
}
.studio-section { padding-top: 12px; }
.studio-preview { background: var(--panel-sub); }
.studio-preview-frame { border-radius: var(--radius-sm); }

/* 模板制作预览：排版、节奏、卡片与图片比例 */
.pv-hero { background: linear-gradient(0deg, #eef3fa, #eef3fa); border: 1px solid var(--line); }
.pv-title { font-size: 24px; line-height: 1.35; letter-spacing: -0.01em; }
.pv-lead { line-height: 1.7; color: #46505f; }
.pv-block { padding: 14px 0; }
.pv-h2 { font-size: 17px; font-weight: 650; margin: 0 0 8px; }
.pv-text { line-height: 1.75; color: #3d4653; margin: 0; }
.pv-list { margin: 8px 0 0; padding-left: 18px; }
.pv-list li { margin-bottom: 4px; line-height: 1.6; }
.pv-imagetext { gap: 16px; align-items: stretch; }
.pv-half img { border: 1px solid var(--line); border-radius: var(--radius-sm); aspect-ratio: 4 / 3; object-fit: cover; }
.pv-imagetext .pv-half:has(img) { flex: 0 1 320px; }
.pv-grid { gap: 12px; }
.pv-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 10px;
  box-shadow: var(--shadow-1);
}
.pv-card-img {
  aspect-ratio: 4 / 3;
  background: #eef2f6;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 12px;
}
.pv-card-name { margin-top: 8px; font-size: 13px; }
.pv-gallery img {
  width: 140px;
  height: 100px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.pv-btn { border-radius: var(--radius-sm); font-weight: 600; padding: 7px 14px; }
.pv-cta { border: 1px solid var(--line); border-radius: var(--radius); }
.pv-faq { border-bottom: 1px solid var(--line); padding: 10px 0; }
.pv-faq strong { display: block; margin-bottom: 2px; }
.pv-faq p { margin: 0; color: #46505f; line-height: 1.7; }

/* 空状态与列表 */
.empty {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--panel-sub);
  padding: 18px;
  text-align: center;
}
.service-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }

/* 定义列表 */
.dl { row-gap: 6px; }
.dl dt { font-size: 12.5px; }
.dl dd { font-size: 13.5px; }

/* 中屏：1024 / 768 合理折叠 */
@media (max-width: 1180px) {
  .main { padding: 20px; }
  .modal:has(.studio) { max-width: 900px; }
}
@media (max-width: 1024px) {
  .shell { grid-template-columns: 200px minmax(0, 1fr); }
  /* 表格改为局部横向滚动，而不是把操作按钮挤成竖排 */
  table { min-width: 760px; }
  .series-covers { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .studio-imagetext .pv-half:has(img) { flex: 1 1 260px; }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: relative;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
    padding: 10px 12px;
  }
  .nav-section { width: 100%; margin: 4px 0 0; }
  .nav-item { width: auto; flex: 1 1 auto; min-width: 96px; text-align: center; }
  .nav-item.active { box-shadow: none; border-bottom: 2px solid var(--primary); }
  .nav-item.active::after { display: none; }
  .brand { width: 100%; border-bottom: none; padding-bottom: 6px; }
  .nav-foot { width: 100%; border-top: none; padding-top: 4px; }
  .main { padding: 16px; }
  .page-header { flex-direction: column; align-items: stretch; }
  .series-covers { grid-template-columns: minmax(0, 1fr); }
  .modal { max-width: 100%; padding: 14px 16px; }
  .modal:has(.studio) { max-width: 100%; }
  .modal-body { max-height: 70vh; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar .count { margin-left: 0; }
}
@media (max-width: 520px) {
  .grid-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .stat-card .value { font-size: 20px; }
  .btn { min-height: 38px; }
  .btn-sm { min-height: 34px; }
  .modal-body { max-height: 74vh; }
}

/* 降低动画偏好 */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .stat-card:hover { transform: none; }
}

/* 次要说明折叠 / 卡片更多操作 */
.panel-note {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: 13px;
}
.panel-note > summary { cursor: pointer; color: var(--muted); font-weight: 600; }
.panel-note-body { margin-top: 10px; }
.panel-note-body .banner { margin-bottom: 0; }
.cover-more { margin-left: auto; }
.cover-more > summary {
  cursor: pointer;
  font-size: 12.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 3px 10px;
  line-height: 24px;
}
.cover-more-body {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 8px 0 0;
}

/* 人工工作台两栏（宽屏分区，窄屏单栏） */
.studio-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
.studio-col {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 12px;
  min-width: 0;
}
.studio-col-title {
  font-size: 12.5px;
  font-weight: 650;
  color: var(--muted);
  margin: 6px 0 8px;
}
.studio-module-nav { display: grid; gap: 8px; margin-top: 8px; }
.studio-module-list { display: grid; gap: 4px; max-height: 320px; overflow: auto; }
.studio-nav-item {
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
}
.studio-nav-item:hover { background: var(--primary-soft); }
.studio-nav-item.active {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}
.studio-col-main .studio-module { margin-bottom: 0; }
.studio-col-main .studio-preview { margin-top: 10px; }
@media (max-width: 1100px) {
  .studio-layout { grid-template-columns: minmax(0, 1fr); }
  .studio-module-list { max-height: none; }
}

/* AI 流程层级 */
.ai-label { display: block; font-size: 12.5px; font-weight: 600; color: var(--muted); margin: 8px 0 4px; }
.ai-brief-summary {
  background: var(--panel-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
}
.ai-brief-summary .help { margin-top: 4px; }
#ai-result { scroll-margin-top: 8px; }

/* 系列资料折叠：次要说明不占首屏，主操作保持可见 */
.series-details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-sub);
  padding: 8px 12px;
  margin: 10px 0 4px;
}
.series-details > summary {
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
}
.series-details .dl { margin-top: 8px; }
@media (max-width: 520px) {
  .cover-item img { height: 112px; }
}

/* 登录页与退出入口（阶段 A：管理员登录） */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: var(--bg);
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.login-brand { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; }
.login-title { font-size: 16px; font-weight: 700; }
.login-sub { font-size: 12.5px; color: var(--muted); }
.login-card .field { display: block; margin-bottom: 12px; }
.login-card .field > span { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 4px; }
.login-card .field input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  font: inherit;
  background: #fff;
}
.login-submit { width: 100%; margin-top: 4px; }
.login-hint { font-size: 12.5px; color: var(--muted); margin: 8px 0 0; }
.login-cmd {
  background: var(--panel-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: 12.5px;
  overflow-x: auto;
}
.login-notice {
  border: 1px solid var(--line);
  background: var(--panel-sub);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: 12.5px;
  margin-bottom: 12px;
}
.login-notice.error { border-color: var(--danger, #c0392b); color: var(--danger, #c0392b); }
#login-error { color: var(--danger, #c0392b); min-height: 18px; }
.nav-foot .nav-logout { margin-top: 8px; width: 100%; }

/* B2：一次性激活码（默认遮码，仅用户显式展开才显示原码） */
.secret-box {
  border: 1px dashed var(--line);
  background: var(--panel-sub);
  border-radius: var(--radius);
  padding: 12px;
  margin: 10px 0;
}
.secret-box .secret-code {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 15px;
  letter-spacing: 0.5px;
  word-break: break-all;
}
.secret-box .btn-row { margin-top: 8px; }