:root {
  --bg: #faf7f2;
  --panel: #ffffff;
  --text: #3d3a34;
  --text-light: #8a857c;
  --primary: #e2725b;
  --primary-dark: #c95f49;
  --accent: #f6a96b;
  --border: #ece6dd;
  --danger: #d64545;
  --shadow: 0 2px 12px rgba(80, 60, 30, 0.08);
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* 顶栏 */
.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; }
.brand-icon { font-size: 26px; }
.topbar-actions { display: flex; gap: 10px; }

/* 布局 */
.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

/* 侧边栏 */
.sidebar {
  width: 210px;
  flex-shrink: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 0;
  position: sticky;
  top: 80px;
}
.sidebar-title {
  padding: 0 18px 10px;
  font-size: 13px;
  color: var(--text-light);
  letter-spacing: 1px;
}
.tag-nav { display: flex; flex-direction: column; }
.tag-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  cursor: pointer;
  border: none;
  background: none;
  font-size: 15px;
  color: var(--text);
  text-align: left;
  transition: background 0.15s;
}
.tag-item:hover { background: #f5f0e8; }
.tag-item.active { background: #fbe9e3; color: var(--primary-dark); font-weight: 600; }
.tag-item .count {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-light);
  background: #f0ece5;
  border-radius: 10px;
  padding: 1px 8px;
}
.tag-item.active .count { background: #f3d3c8; color: var(--primary-dark); }
.sidebar-footer { padding: 12px 18px 0; border-top: 1px solid var(--border); margin-top: 12px; }

/* 主区域 */
.main { flex: 1; min-width: 0; }
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.search-box { flex: 1; }
.search-box input {
  width: 100%;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 24px;
  font-size: 15px;
  outline: none;
  background: var(--panel);
}
.search-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(246, 169, 107, 0.2); }
.result-count { color: var(--text-light); font-size: 14px; white-space: nowrap; }

/* 卡片网格 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-image {
  height: 170px;
  background: linear-gradient(135deg, #f7f0e4, #efe4d0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: #c9b896;
  overflow: hidden;
}
.card-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-body { padding: 14px 16px 16px; }
.card-title { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* 标签徽章 */
.chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  background: #fbe9e3;
  color: var(--primary-dark);
}
.chip.clickable { cursor: pointer; border: none; }
.chip.clickable:hover { background: #f3d3c8; }

/* 按钮 */
.btn {
  padding: 9px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.15s, opacity 0.15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: #f5f0e8; }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.icon-btn {
  border: none;
  background: none;
  cursor: pointer;
  font-size: 18px;
  color: var(--text-light);
  padding: 4px;
}
.icon-btn:hover { color: var(--text); }

/* 空状态 */
.empty { text-align: center; color: var(--text-light); padding: 80px 0; font-size: 15px; }

/* 弹窗 */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(40, 30, 20, 0.4); }
.modal-panel {
  position: relative;
  background: var(--panel);
  border-radius: 16px;
  width: 100%;
  max-width: 640px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  z-index: 1;
}
.modal-sm { max-width: 420px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 18px; }
.modal-body { padding: 22px 24px; overflow-y: auto; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* 表单 */
.field { display: block; margin-bottom: 18px; }
.field > span { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 6px; }
.field input[type="text"], .field textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  background: #fff;
}
.field input:focus, .field textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(246,169,107,0.2); }
.field textarea { resize: vertical; line-height: 1.6; }

.image-input { display: flex; gap: 8px; }
.image-input input { flex: 1; }
.image-preview { position: relative; margin-top: 10px; display: inline-block; }
.image-preview img { max-width: 200px; max-height: 150px; border-radius: 8px; border: 1px solid var(--border); }
.image-preview .icon-btn {
  position: absolute; top: -8px; right: -8px;
  background: var(--danger); color: #fff; border-radius: 50%;
  width: 22px; height: 22px; font-size: 12px; line-height: 22px;
  text-align: center;
}
.upload-status { font-size: 13px; margin-top: 6px; color: var(--text-light); }
.upload-status.ok { color: #2e8b57; }
.upload-status.err { color: var(--danger); }

/* 标签选择 */
.tag-select { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.tag-select .chip { cursor: pointer; user-select: none; }
.tag-select .chip.selected { background: var(--primary); color: #fff; }
#tag-input { width: 100%; }

/* 标签管理 */
.tag-add-row { display: flex; gap: 8px; margin-bottom: 16px; }
.tag-add-row input { flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; }
.tag-manage-list { list-style: none; }
.tag-manage-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px; border-bottom: 1px solid var(--border);
}
.tag-manage-list li .del { color: var(--danger); cursor: pointer; border: none; background: none; font-size: 14px; }

/* 详情 */
.detail-image img { max-width: 100%; max-height: 320px; border-radius: 10px; margin-bottom: 14px; display: block; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.detail-steps { line-height: 1.8; font-size: 15px; white-space: pre-wrap; }
.detail-steps h1, .detail-steps h2, .detail-steps h3 { margin: 12px 0 6px; }
.detail-steps ol, .detail-steps ul { padding-left: 22px; }

/* Toast */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: #333; color: #fff; padding: 12px 24px; border-radius: 8px;
  font-size: 14px; opacity: 0; transition: all 0.3s; z-index: 200; pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

@media (max-width: 768px) {
  .topbar-inner { padding: 10px 14px; }
  .brand { font-size: 17px; }
  .brand-icon { font-size: 22px; }
  .topbar-actions { gap: 6px; }
  .topbar-actions .btn { padding: 7px 12px; font-size: 13px; }

  .layout { gap: 12px; padding: 12px; }

  .sidebar {
    width: 110px;
    flex-shrink: 0;
    position: sticky;
    top: 54px;
    z-index: 45;
    padding: 8px 0;
    max-height: calc(100vh - 66px);
    overflow-y: auto;
  }
  .sidebar-title { display: none; }
  .tag-nav { flex-direction: column; }
  .tag-item { padding: 9px 10px; font-size: 13px; gap: 4px; }
  .tag-item span:first-child { line-height: 1.3; word-break: break-all; }
  .tag-item .count { font-size: 11px; padding: 1px 6px; flex-shrink: 0; }
  .sidebar-footer { padding: 10px 8px 0; }
  .sidebar-footer .btn { width: 100%; padding: 6px 4px; font-size: 12px; }
}

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; gap: 12px; }
  .card-image { height: 160px; }
  .card-body { padding: 12px 14px 14px; }
  .card-title { font-size: 16px; margin-bottom: 8px; }

  .modal { padding: 0; align-items: flex-end; }
  .modal-panel {
    max-width: 100%;
    width: 100%;
    max-height: 94vh;
    border-radius: 18px 18px 0 0;
  }
  .modal-header { padding: 14px 18px; }
  .modal-body { padding: 16px 18px; }
  .modal-footer { padding: 12px 18px; }

  .detail-image img { max-height: 240px; }
  .toolbar { gap: 8px; }
  .result-count { font-size: 12px; }
}