/* ========== 基础 ========== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  color: #1f2937;
  background: #f7f7f8;
  overflow: hidden;
}
.hidden { display: none !important; }
#app { height: 100%; display: flex; flex-direction: column; }

/* ========== 首页与 Hero 区域 ========== */
#dropzone { 
  flex: 1; 
  display: block; 
  overflow-y: auto; 
  background: #f7f7f8;
}

.hero-section {
  padding: 60px 20px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(180deg, #eff6ff 0%, #f7f7f8 100%);
}

.hero-header {
  text-align: center;
  margin-bottom: 32px;
  max-width: 800px;
}

.hero-header h1 {
  font-size: 36px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.hero-header .subtitle {
  font-size: 16px;
  color: #475569;
  margin-bottom: 20px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
}
.badge-blue { background: #e0f2fe; color: #0369a1; border-color: #bae6fd; }
.badge-green { background: #dcfce7; color: #15803d; border-color: #bbf7d0; }
.badge-purple { background: #f3e8ff; color: #6b21a8; border-color: #e9d5ff; }
.badge-orange { background: #ffedd5; color: #c2410c; border-color: #fed7aa; }
.badge-gray { background: #f1f5f9; color: #475569; border-color: #e2e8f0; }

/* 拖拽卡片 */
#dropzone .inner {
  border: 2px dashed #cbd5e1; 
  border-radius: 16px; 
  padding: 40px;
  text-align: center; 
  background: #fff; 
  transition: all .2s; 
  max-width: 680px; 
  width: 100%;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
}
#dropzone .inner.dragover { 
  border-color: #3b82f6; 
  background: #eff6ff; 
  transform: scale(1.01);
}
.upload-icon {
  font-size: 48px;
  margin-bottom: 16px;
}
#dropzone h2 { font-size: 20px; margin-bottom: 8px; color: #0f172a; }
#dropzone p { color: #64748b; margin-bottom: 0; font-size: 14px; }

.btn-primary {
  padding: 0; border: none; background: transparent; color: #3b82f6;
  font-size: 14px; font-weight: 600; cursor: pointer; text-decoration: underline;
}
.btn-primary:hover { color: #2563eb; }

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 24px 0;
  color: #94a3b8;
  font-size: 12px;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid #e2e8f0;
}
.divider span { padding: 0 12px; }

#dropzone textarea {
  width: 100%; min-height: 100px; padding: 12px;
  border: 1px solid #e2e8f0; border-radius: 8px;
  font-family: "SFMono-Regular", Consolas, monospace; font-size: 13px;
  resize: vertical; outline: none; background: #f8fafc;
  transition: border-color 0.2s;
}
#dropzone textarea:focus { border-color: #3b82f6; background: #fff; }

.btn-secondary {
  margin-top: 12px;
  padding: 10px 24px; border: none; background: #0f172a; color: #fff;
  border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500;
  transition: background 0.2s;
  width: 100%;
}
.btn-secondary:hover { background: #1e293b; }

/* SEO 文案区域 */
.seo-content {
  background: #fff;
  border-top: 1px solid #e2e8f0;
  padding: 60px 20px;
}
.seo-content .section-inner {
  max-width: 900px;
  margin: 0 auto;
}
.seo-content h2 {
  font-size: 22px;
  color: #0f172a;
  margin: 40px 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #f1f5f9;
}
.seo-content h2:first-child { margin-top: 0; }
.seo-content > p {
  font-size: 15px;
  line-height: 1.8;
  color: #475569;
  margin-bottom: 24px;
}
.seo-content strong { color: #1e293b; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.feature-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 20px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  border-color: #cbd5e1;
}
.feature-card h3 {
  font-size: 16px;
  color: #1e293b;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.feature-card p {
  font-size: 13.5px;
  color: #64748b;
  line-height: 1.6;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 40px;
}
.faq-item {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 16px 20px;
}
.faq-item strong {
  display: block;
  font-size: 15px;
  color: #1e293b;
  margin-bottom: 8px;
}
.faq-item p {
  font-size: 14px;
  color: #64748b;
  line-height: 1.6;
}
.faq-item code {
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 12.5px;
  color: #ec4899;
}

.footer {
  text-align: center;
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid #f1f5f9;
  color: #94a3b8;
  font-size: 13px;
}

/* ========== 主界面（保持不变） ========== */
#loader {
  position: fixed; inset: 0; background: rgba(255,255,255,0.85);
  display: flex; align-items: center; justify-content: center; flex-direction: column;
  gap: 12px; z-index: 100;
}
#loader .spinner {
  width: 32px; height: 32px; border: 3px solid #e2e8f0; border-top-color: #3b82f6;
  border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loader .loader-text { color: #64748b; font-size: 13px; }

#main { flex: 1; display: flex; overflow: hidden; }

#tree-panel {
  width: 420px; min-width: 280px; max-width: 55%;
  background: #fff; border-right: 1px solid #e2e8f0;
  display: flex; flex-direction: column; flex-shrink: 0;
}
#tree-panel .top-bar {
  padding: 6px 12px; border-bottom: 1px solid #e2e8f0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; flex-shrink: 0;
}
#tree-panel .top-bar .title { font-weight: 600; color: #334155; }
#tree-panel .top-bar .btn-group { display: flex; gap: 6px; }
#tree-panel .top-bar .reload {
  font-size: 11px; padding: 3px 10px; border: 1px solid #e2e8f0;
  background: #fff; border-radius: 4px; cursor: pointer; color: #64748b;
}
#tree-panel .top-bar .reload:hover { background: #f1f5f9; color: #1e293b; }
#tree-panel .top-bar .reload.active { background: #dbeafe; color: #1d4ed8; border-color: #93c5fd; }

.search-box {
  padding: 8px 10px 4px; border-bottom: 1px solid #e2e8f0;
  display: flex; gap: 6px; flex-shrink: 0; background: #fafafa;
}
.search-box input {
  flex: 1; padding: 6px 10px; border: 1px solid #e2e8f0;
  border-radius: 4px; font-size: 12px; outline: none;
}
.search-box input:focus { border-color: #93c5fd; background: #fff; }
.search-box button {
  padding: 6px 12px; border: 1px solid #e2e8f0; background: #fff;
  border-radius: 4px; cursor: pointer; font-size: 12px; color: #64748b;
}
.search-box button:hover { background: #f1f5f9; color: #1e293b; }

.path-jump-box {
  padding: 4px 10px 8px; border-bottom: 1px solid #e2e8f0;
  display: flex; gap: 6px; flex-shrink: 0; background: #fafafa;
}
.path-jump-box input {
  flex: 1; padding: 6px 10px; border: 1px solid #e2e8f0;
  border-radius: 4px; font-size: 12px; outline: none;
  font-family: "SFMono-Regular", Consolas, monospace;
}
.path-jump-box input:focus { border-color: #10b981; background: #fff; }
.path-jump-box input::placeholder { color: #94a3b8; }
.path-jump-box button {
  padding: 6px 12px; border: none; background: #10b981; color: #fff;
  border-radius: 4px; cursor: pointer; font-size: 12px; font-weight: 500;
}
.path-jump-box button:hover { background: #059669; }

#search-results { flex: 1; overflow: auto; padding: 4px 0; }
#search-results .search-status {
  padding: 8px 12px; font-size: 11.5px; color: #64748b;
  background: #f8fafc; border-bottom: 1px solid #e2e8f0;
  position: sticky; top: 0; z-index: 1;
}
#search-results .search-status .count { color: #dc2626; font-weight: 600; }
#search-results .search-status .warn { color: #d97706; }
#search-results .no-result { padding: 32px 20px; text-align: center; color: #94a3b8; font-size: 12px; }
#search-results .result-item {
  padding: 6px 12px; cursor: pointer; border-bottom: 1px solid #f1f5f9;
  font-size: 12px; transition: background 0.1s; position: relative;
}
#search-results .result-item:hover { background: #eff6ff; }
#search-results .result-item .path {
  font-family: "SFMono-Regular", Consolas, monospace;
  color: #1e40af; font-size: 11px; margin-bottom: 3px;
  word-break: break-all; line-height: 1.4; padding-right: 60px;
}
#search-results .result-item .value-line {
  color: #475569; font-family: "SFMono-Regular", Consolas, monospace; font-size: 11.5px;
}
#search-results .result-item .val { color: #dc2626; font-weight: 600; }
#search-results .result-item .parent-btn {
  position: absolute; right: 8px; top: 6px;
  padding: 2px 8px; font-size: 10.5px;
  background: #f0fdf4; border: 1px solid #86efac; color: #16a34a;
  border-radius: 3px; cursor: pointer;
  font-family: -apple-system, sans-serif; font-weight: 500;
}
#search-results .result-item .parent-btn:hover { background: #dcfce7; border-color: #4ade80; }
#search-results .kind-tag {
  display: inline-block; padding: 0 5px; border-radius: 3px;
  font-size: 10px; margin-right: 5px; font-weight: 600;
  font-family: -apple-system, sans-serif;
}
#search-results .kind-tag.key { background: #fef3c7; color: #92400e; }
#search-results .kind-tag.value { background: #dbeafe; color: #1e40af; }

#tree-root { flex: 1; overflow: auto; padding: 8px 0; }
#tree-panel .node-row {
  display: flex; align-items: center; padding: 3px 8px;
  cursor: pointer; white-space: nowrap; user-select: none;
  border-radius: 4px; margin: 0 4px; font-size: 12px;
}
#tree-panel .node-row:hover { background: #f1f5f9; }
#tree-panel .node-row.selected { background: #dbeafe; }
#tree-panel .toggle {
  width: 14px; text-align: center; color: #94a3b8;
  flex-shrink: 0; display: inline-block;
  transition: transform 0.15s; font-size: 9px;
}
#tree-panel .toggle.expanded { transform: rotate(90deg); }
#tree-panel .toggle.leaf { visibility: hidden; }
#tree-panel .icon {
  width: 22px; text-align: center; flex-shrink: 0;
  font-size: 10px; font-weight: bold; font-family: monospace;
}
#tree-panel .icon.obj { color: #f59e0b; }
#tree-panel .icon.arr { color: #10b981; }
#tree-panel .icon.str { color: #6366f1; }
#tree-panel .icon.num { color: #ec4899; }
#tree-panel .icon.bool { color: #8b5cf6; }
#tree-panel .icon.nul { color: #94a3b8; }
#tree-panel .key { color: #0f172a; margin: 0 4px; }
#tree-panel .cn-label { color: #94a3b8; font-size: 10.5px; margin-left: 6px; font-weight: normal; }
#tree-panel .preview {
  color: #94a3b8; font-size: 11px; margin-left: 6px;
  overflow: hidden; text-overflow: ellipsis;
}
#tree-panel .children { padding-left: 16px; display: none; }
#tree-panel .children.open { display: block; }
#tree-panel .load-more {
  color: #2563eb !important; font-weight: 600 !important;
  padding: 6px 8px !important; margin: 2px 4px !important;
  background: #eff6ff; border-radius: 4px;
}
#tree-panel .load-more:hover { background: #dbeafe; }

body:not(.show-cn) .cn-label,
body:not(.show-cn) .cn-sub { display: none !important; }

#content-panel { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

#sql-panel {
  height: 200px; min-height: 80px; max-height: 80vh;
  flex-shrink: 0; background: #1e293b; color: #e2e8f0;
  display: flex; flex-direction: column; border-bottom: 1px solid #0f172a;
}
#splitter {
  height: 8px; background: #e2e8f0;
  border-top: 1px solid #cbd5e1; border-bottom: 1px solid #cbd5e1;
  cursor: row-resize; flex-shrink: 0; z-index: 10; transition: background 0.15s;
}
#splitter:hover, #splitter:active { background: #3b82f6; }

#sql-panel .sql-header {
  padding: 6px 12px; font-size: 11px; color: #94a3b8;
  border-bottom: 1px solid #334155;
  display: flex; justify-content: space-between; align-items: center;
  flex-shrink: 0; gap: 8px;
}
#sql-panel .sql-header .left { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
#sql-panel .sql-header .tag {
  background: #334155; padding: 1px 6px; border-radius: 3px; font-size: 10px;
}
#sql-panel .sql-header .tag.ok { background: #065f46; color: #6ee7b7; }
#sql-panel .sql-header .right { display: flex; gap: 6px; align-items: center; }
#sql-panel .sql-header .sql-btn {
  padding: 3px 10px; font-size: 11px;
  background: #334155; color: #cbd5e1; border: 1px solid #475569;
  border-radius: 4px; cursor: pointer;
}
#sql-panel .sql-header .sql-btn:hover { background: #475569; color: #f1f5f9; }
#sql-panel .sql-header .run-btn {
  padding: 3px 14px; font-size: 11px; background: #10b981; color: #fff;
  border: none; border-radius: 4px; cursor: pointer; font-weight: 600;
}
#sql-panel .sql-header .run-btn:hover { background: #059669; }
#sql-panel textarea {
  flex: 1; background: transparent; border: none; color: #e2e8f0;
  padding: 8px 12px; font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px; resize: none; outline: none; line-height: 1.6;
}

#view-panel { flex: 1; overflow: hidden; background: #fff; display: flex; flex-direction: column; }
#view-panel .empty {
  flex: 1; display: flex; align-items: center; justify-content: center;
  color: #94a3b8; font-size: 14px;
}

.breadcrumb {
  padding: 8px 16px; font-size: 12px; color: #64748b;
  border-bottom: 1px solid #e2e8f0; background: #f8fafc;
  font-family: "SFMono-Regular", Consolas, monospace;
  white-space: nowrap; overflow-x: auto; flex-shrink: 0;
  display: flex; align-items: center; gap: 2px;
}
.breadcrumb .path-seg { color: #1e40af; font-weight: 600; }
.breadcrumb .path-sep { color: #64748b; }
.breadcrumb .clickable { cursor: pointer; padding: 1px 4px; border-radius: 3px; }
.breadcrumb .clickable:hover { background: #dbeafe; color: #1d4ed8; }
.breadcrumb .copy-path-btn {
  margin-left: auto; padding: 3px 10px; font-size: 11px;
  border: 1px solid #e2e8f0; background: #fff; border-radius: 4px;
  cursor: pointer; color: #64748b;
  font-family: -apple-system, sans-serif; white-space: nowrap;
}
.breadcrumb .copy-path-btn:hover { background: #f1f5f9; color: #1e293b; border-color: #cbd5e1; }

.content-body { flex: 1; overflow: auto; padding: 12px 16px; }
.value-display {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 14px; color: #0f172a; background: #f1f5f9;
  padding: 12px 16px; border-radius: 6px; word-break: break-all;
  border-left: 3px solid #3b82f6;
}

table.kv-table {
  width: 100%; border-collapse: collapse;
  font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px;
}
table.kv-table td {
  padding: 7px 12px; border-bottom: 1px solid #f1f5f9; vertical-align: top;
}
table.kv-table td:first-child {
  color: #0f172a; font-weight: 600; width: 30%; background: #fafafa;
}
table.kv-table td:last-child { color: #475569; }
.link-cell {
  color: #2563eb; cursor: pointer;
  text-decoration: underline; text-decoration-color: #bfdbfe;
}
.link-cell:hover { color: #1d4ed8; text-decoration-color: #3b82f6; }

.table-toolbar {
  padding: 8px 0; display: flex; justify-content: space-between;
  align-items: center; font-size: 12px; color: #64748b;
  gap: 12px; flex-wrap: wrap;
}
.table-toolbar .info { font-weight: 500; }
.table-toolbar .tools { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.toolbar-btn {
  padding: 4px 12px; border: 1px solid #e2e8f0; background: #fff;
  border-radius: 4px; cursor: pointer; font-size: 12px; color: #334155;
}
.toolbar-btn:hover { background: #f1f5f9; border-color: #cbd5e1; }
.toolbar-btn.active { background: #dbeafe; color: #1d4ed8; border-color: #93c5fd; }

.pagination { display: flex; gap: 6px; align-items: center; }
.pagination button {
  padding: 4px 12px; border: 1px solid #e2e8f0; background: #fff;
  border-radius: 4px; cursor: pointer; font-size: 12px; color: #334155;
}
.pagination button:hover:not(:disabled) { background: #f1f5f9; border-color: #cbd5e1; }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .page-info { padding: 0 8px; color: #64748b; min-width: 80px; text-align: center; }

.col-selector-panel {
  margin: 8px 0 12px; padding: 12px;
  background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 6px;
}
.col-selector-panel .panel-topbar {
  display: flex; gap: 6px; align-items: center;
  margin-bottom: 10px; flex-wrap: wrap;
}
.col-selector-panel .panel-topbar button {
  padding: 3px 10px; border: 1px solid #e2e8f0; background: #fff;
  border-radius: 3px; cursor: pointer; font-size: 11.5px; color: #475569;
}
.col-selector-panel .panel-topbar button:hover { background: #f1f5f9; }
.col-selector-panel .panel-count { color: #64748b; font-size: 11.5px; margin-left: auto; font-weight: 500; }
.col-selector-panel .panel-checkboxes {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 4px 12px; max-height: 240px; overflow-y: auto; padding: 4px 0;
}
.col-selector-panel .col-check {
  display: flex; align-items: center; gap: 6px;
  padding: 3px 6px; border-radius: 3px; cursor: pointer;
  font-size: 11.5px; font-family: "SFMono-Regular", Consolas, monospace;
}
.col-selector-panel .col-check:hover { background: #eff6ff; }
.col-selector-panel .panel-actions {
  display: flex; justify-content: flex-end; gap: 8px;
  margin-top: 10px; padding-top: 10px; border-top: 1px solid #e2e8f0;
}
.col-selector-panel .panel-actions button {
  padding: 5px 16px; border: 1px solid #e2e8f0; background: #fff;
  border-radius: 4px; cursor: pointer; font-size: 12px; color: #334155;
}
.col-selector-panel .panel-actions button.primary {
  background: #3b82f6; color: #fff; border-color: #3b82f6;
}
.col-selector-panel .panel-actions button.primary:hover { background: #2563eb; }

.table-wrapper {
  overflow: auto; border: 1px solid #e2e8f0; border-radius: 6px; max-height: 100%;
}
table.data-table {
  border-collapse: collapse; font-size: 12px;
  font-family: "SFMono-Regular", Consolas, monospace;
}
table.data-table thead th {
  background: #f1f5f9; padding: 6px 12px; text-align: left;
  font-weight: 600; color: #334155;
  border-bottom: 1px solid #e2e8f0; border-right: 1px solid #e2e8f0;
  position: sticky; top: 0; white-space: nowrap; z-index: 1; line-height: 1.3;
}
table.data-table thead th:last-child { border-right: none; }
table.data-table thead th .cn-sub {
  color: #64748b; font-size: 10.5px; font-weight: normal; margin-top: 2px;
}
table.data-table tbody td {
  padding: 6px 12px; border-bottom: 1px solid #f1f5f9;
  border-right: 1px solid #f8fafc; white-space: nowrap;
  max-width: 320px; overflow: hidden; text-overflow: ellipsis;
  cursor: pointer; transition: background 0.1s;
}
table.data-table tbody td:last-child { border-right: none; }
table.data-table tbody td:hover { background: #eff6ff; }
table.data-table tbody tr:hover { background: #f8fafc; }
table.data-table .row-idx {
  color: #94a3b8; font-weight: 600; background: #fafafa;
  text-align: right; position: sticky; left: 0; cursor: default;
}
table.data-table .row-idx:hover { background: #fafafa; }
table.data-table .null-val { color: #cbd5e1; font-style: italic; }
.cell-clickable { color: #2563eb; text-decoration: underline; text-decoration-color: #bfdbfe; }
td:hover .cell-clickable { text-decoration-color: #3b82f6; }

.sql-preview-box {
  padding: 8px 12px; background: #f8fafc; border: 1px solid #e2e8f0;
  border-radius: 4px; font-family: monospace; font-size: 11.5px;
  color: #475569; margin-bottom: 12px; white-space: pre-wrap; word-break: break-all;
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: #cbd5e1; border-radius: 5px; border: 2px solid #fff;
}
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
/* ===== 编辑原文弹窗 ===== */
.edit-json-overlay {
  display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, 0.7);
  z-index: 2000; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(4px);
}
.edit-json-content {
  background: #1e293b; /* 深色主题 */
  max-width: 1000px; width: 100%; height: 85vh; border-radius: 12px;
  display: flex; flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: modalIn 0.2s ease-out;
}
.edit-json-header {
  padding: 16px 24px; border-bottom: 1px solid #334155;
  display: flex; justify-content: space-between; align-items: center;
}
.edit-json-header h2 { font-size: 18px; color: #f8fafc; margin: 0; }
.edit-json-actions { display: flex; gap: 12px; }
.btn-cancel {
  padding: 8px 16px; background: #334155; color: #cbd5e1; border: none;
  border-radius: 6px; cursor: pointer; font-size: 13px; transition: background 0.2s;
}
.btn-cancel:hover { background: #475569; }
.btn-apply {
  padding: 8px 20px; background: #10b981; color: #fff; border: none;
  border-radius: 6px; cursor: pointer; font-size: 13px; font-weight: 600; transition: background 0.2s;
}
.btn-apply:hover { background: #059669; }
.edit-json-tip {
  padding: 10px 24px; font-size: 12px; color: #fbbf24; background: #451a03; margin: 0;
}
#editJsonTextarea {
  flex: 1; width: 100%; resize: none; padding: 20px 24px;
  background: transparent; color: #e2e8f0; border: none; outline: none;
  font-family: "SFMono-Regular", Consolas, monospace; font-size: 13.5px; line-height: 1.6;
}
/* ===== 长文 SEO 排版优化 ===== */
.seo-content h2 { font-size: 24px; margin-top: 50px; margin-bottom: 20px; color: #1e293b; border-bottom: 2px solid #e2e8f0; padding-bottom: 12px; }
.seo-content h3 { font-size: 18px; margin-top: 32px; margin-bottom: 16px; color: #334155; }
.seo-content p { font-size: 15px; line-height: 1.8; color: #475569; margin-bottom: 16px; }
.seo-content ul, .seo-content ol { font-size: 15px; line-height: 1.8; color: #475569; margin-bottom: 20px; padding-left: 24px; }
.seo-content li { margin-bottom: 8px; }
.seo-content code {
  background: #f1f5f9; padding: 2px 6px; border-radius: 4px;
  font-family: "SFMono-Regular", Consolas, monospace; font-size: 13px; color: #ec4899;
}
.seo-content pre {
  background: #1e293b; border-radius: 8px; padding: 16px; overflow-x: auto; margin-bottom: 24px;
}
.seo-content pre code {
  background: transparent; padding: 0; color: #e2e8f0; font-size: 13.5px; line-height: 1.6;
}
.seo-content a { color: #3b82f6; text-decoration: none; }
.seo-content a:hover { text-decoration: underline; }