:root {
  --bg: #ffffff;
  --bg-panel: #f7f7f7;
  --bg-settings: #e4e4e4;
  --bg-item: #ffffff;
  --bg-item-hover: #fafafa;
  --text: #333333;
  --text-muted: #999999;
  --text-label: #666666;
  --accent: #333333;
  --border: #e5e5e5;
  --border-item: #d8d8d8;
  --tab-bg: #e8e8e8;
  --search-border: #e0e0e0;
  --search-bg: #ffffff;
  --radius: 8px;
  --content-width: 1080px;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ========== 主题样式（贴合名称的视觉） ========== */

/* 月灰：干净浅灰，无装饰 */
[data-theme=""],
:root:not([data-theme]),
html:not([data-theme]),
html[data-theme=""] {
  --accent: #555555;
}

/* 浪花：棕灰沙浪 */
[data-theme="wave"] {
  --accent: #8b7355;
  --bg-panel: #ece8e3;
  --bg-settings: #e2ddd6;
  --search-border: #ddd5cb;
}
[data-theme="wave"][data-color-mode="dark"] {
  --bg-panel: #1c1a18;
  --bg-settings: #161412;
  --accent: #c4b5a0;
}

/* 海洋：清透蓝 */
[data-theme="ocean"] {
  --accent: #3d8fd4;
  --bg-panel: #e8f2f8;
  --bg-settings: #dceaf3;
  --search-border: #c5dcec;
}
[data-theme="ocean"][data-color-mode="dark"] {
  --bg-panel: #152028;
  --bg-settings: #101820;
  --accent: #6bb3e8;
}

/* 森林：草木绿 */
[data-theme="forest"] {
  --accent: #4a9a6a;
  --bg-panel: #e8f0ea;
  --bg-settings: #dce8e0;
  --search-border: #c5d9cc;
}
[data-theme="forest"][data-color-mode="dark"] {
  --bg-panel: #161c18;
  --bg-settings: #121814;
  --accent: #7dca9a;
}

/* 日落：暖橙霞光 */
[data-theme="sunset"] {
  --accent: #e07a4a;
  --bg-panel: #f5ebe4;
  --bg-settings: #eedfd5;
  --search-border: #e5cfc2;
}
[data-theme="sunset"][data-color-mode="dark"] {
  --bg-panel: #221a16;
  --bg-settings: #1a1411;
  --accent: #f0a070;
}

/* 紫罗兰：淡紫氛围 */
[data-theme="purple"] {
  --accent: #8b6fc0;
  --bg-panel: #efeaf6;
  --bg-settings: #e6dff0;
  --search-border: #d5cce6;
}
[data-theme="purple"][data-color-mode="dark"] {
  --bg-panel: #1a1720;
  --bg-settings: #14121a;
  --accent: #b49ae0;
}

@media (prefers-color-scheme: dark) {
  [data-theme="wave"][data-color-mode="system"] {
    --bg-panel: #1c1a18; --bg-settings: #161412; --accent: #c4b5a0;
  }
  [data-theme="ocean"][data-color-mode="system"] {
    --bg-panel: #152028; --bg-settings: #101820; --accent: #6bb3e8;
  }
  [data-theme="forest"][data-color-mode="system"] {
    --bg-panel: #161c18; --bg-settings: #121814; --accent: #7dca9a;
  }
  [data-theme="sunset"][data-color-mode="system"] {
    --bg-panel: #221a16; --bg-settings: #1a1411; --accent: #f0a070;
  }
  [data-theme="purple"][data-color-mode="system"] {
    --bg-panel: #1a1720; --bg-settings: #14121a; --accent: #b49ae0;
  }
}

/* 主题装饰层 */
.theme-decor {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 200px;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.theme-decor .decor {
  display: none;
  position: absolute;
  inset: 0;
}

.theme-decor svg {
  width: 100%;
  height: 100%;
  display: block;
}

html[data-theme="wave"] .decor-wave,
html[data-theme="ocean"] .decor-ocean,
html[data-theme="forest"] .decor-forest,
html[data-theme="sunset"] .decor-sunset,
html[data-theme="purple"] .decor-purple {
  display: block;
}

/* 浪花 */
.decor-wave .w1 { fill: #c4b5a0; opacity: 0.5; }
.decor-wave .w2 { fill: #a89078; opacity: 0.7; }
.decor-wave .w3 { fill: #8b7355; opacity: 0.92; }
html[data-color-mode="dark"] .decor-wave .w1 { fill: #4a4035; }
html[data-color-mode="dark"] .decor-wave .w2 { fill: #3a322a; }
html[data-color-mode="dark"] .decor-wave .w3 { fill: #2a241e; }

/* 海洋 */
.decor-ocean .w1 { fill: #9ec9e8; opacity: 0.55; }
.decor-ocean .w2 { fill: #6baed6; opacity: 0.72; }
.decor-ocean .w3 { fill: #3d8fd4; opacity: 0.9; }
html[data-color-mode="dark"] .decor-ocean .w1 { fill: #1e3a50; }
html[data-color-mode="dark"] .decor-ocean .w2 { fill: #163044; }
html[data-color-mode="dark"] .decor-ocean .w3 { fill: #0f2435; }

/* 森林（远山） */
.decor-forest .w1 { fill: #a8d4b5; opacity: 0.5; }
.decor-forest .w2 { fill: #6bbf8a; opacity: 0.7; }
.decor-forest .w3 { fill: #4a9a6a; opacity: 0.9; }
html[data-color-mode="dark"] .decor-forest .w1 { fill: #24382c; }
html[data-color-mode="dark"] .decor-forest .w2 { fill: #1a2c22; }
html[data-color-mode="dark"] .decor-forest .w3 { fill: #122018; }

/* 日落 */
.decor-sunset .sunset-glow {
  position: absolute;
  left: 50%;
  bottom: 40px;
  width: 420px;
  height: 160px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(255, 170, 100, 0.45) 0%, rgba(255, 120, 80, 0.2) 45%, transparent 70%);
}
.decor-sunset .w1 { fill: #f0b090; opacity: 0.55; }
.decor-sunset .w2 { fill: #e8916a; opacity: 0.72; }
.decor-sunset .w3 { fill: #d4704a; opacity: 0.9; }
html[data-color-mode="dark"] .decor-sunset .sunset-glow {
  background: radial-gradient(ellipse at center, rgba(220, 120, 60, 0.35) 0%, transparent 70%);
}
html[data-color-mode="dark"] .decor-sunset .w1 { fill: #4a3020; }
html[data-color-mode="dark"] .decor-sunset .w2 { fill: #3a2418; }
html[data-color-mode="dark"] .decor-sunset .w3 { fill: #2a1a10; }

/* 紫罗兰 */
.decor-purple .purple-mist {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
}
.decor-purple .m1 {
  width: 280px;
  height: 140px;
  left: 15%;
  bottom: 20px;
  background: rgba(167, 139, 250, 0.35);
}
.decor-purple .m2 {
  width: 320px;
  height: 120px;
  right: 10%;
  bottom: 40px;
  background: rgba(196, 160, 230, 0.3);
}
.decor-purple .w1 { fill: #c4b0e8; opacity: 0.55; }
.decor-purple .w2 { fill: #a78bfa; opacity: 0.8; }
html[data-color-mode="dark"] .decor-purple .m1 { background: rgba(120, 90, 180, 0.25); }
html[data-color-mode="dark"] .decor-purple .m2 { background: rgba(100, 70, 160, 0.2); }
html[data-color-mode="dark"] .decor-purple .w1 { fill: #3a2e50; }
html[data-color-mode="dark"] .decor-purple .w2 { fill: #2a2040; }

html[data-theme]:not([data-theme=""]) .board-wrap,
html[data-theme]:not([data-theme=""]) .settings-panel,
html[data-theme]:not([data-theme=""]) .site-footer,
html[data-theme]:not([data-theme=""]) .hero,
html[data-theme]:not([data-theme=""]) .tabs-bar,
html[data-theme]:not([data-theme=""]) .topbar {
  position: relative;
  z-index: 2;
}

html[data-theme]:not([data-theme=""]) .toast,
html[data-theme]:not([data-theme=""]) .edit-popup,
html[data-theme]:not([data-theme=""]) .engine-menu {
  z-index: 100;
}

body.is-editing .theme-decor {
  height: 130px;
  opacity: 0.9;
}

@media (prefers-color-scheme: dark) {
  html[data-color-mode="system"] .decor-wave .w1 { fill: #4a4035; }
  html[data-color-mode="system"] .decor-wave .w2 { fill: #3a322a; }
  html[data-color-mode="system"] .decor-wave .w3 { fill: #2a241e; }
  html[data-color-mode="system"] .decor-ocean .w1 { fill: #1e3a50; }
  html[data-color-mode="system"] .decor-ocean .w2 { fill: #163044; }
  html[data-color-mode="system"] .decor-ocean .w3 { fill: #0f2435; }
  html[data-color-mode="system"] .decor-forest .w1 { fill: #24382c; }
  html[data-color-mode="system"] .decor-forest .w2 { fill: #1a2c22; }
  html[data-color-mode="system"] .decor-forest .w3 { fill: #122018; }
  html[data-color-mode="system"] .decor-sunset .w1 { fill: #4a3020; }
  html[data-color-mode="system"] .decor-sunset .w2 { fill: #3a2418; }
  html[data-color-mode="system"] .decor-sunset .w3 { fill: #2a1a10; }
  html[data-color-mode="system"] .decor-purple .w1 { fill: #3a2e50; }
  html[data-color-mode="system"] .decor-purple .w2 { fill: #2a2040; }
}

[data-color-mode="dark"] {
  --bg: #0f0f0f;
  --bg-panel: #1a1a1a;
  --bg-settings: #141414;
  --bg-item: #242424;
  --bg-item-hover: #2e2e2e;
  --text: #f0f0f0;
  --text-muted: #888888;
  --text-label: #9a9a9a;
  --accent: #f0f0f0;
  --border: #2a2a2a;
  --border-item: #3a3a3a;
  --tab-bg: #2a2a2a;
  --search-border: #2e2e2e;
  --search-bg: #1a1a1a;
}

@media (prefers-color-scheme: dark) {
  [data-color-mode="system"] {
    --bg: #0f0f0f;
    --bg-panel: #1a1a1a;
    --bg-settings: #141414;
    --bg-item: #242424;
    --bg-item-hover: #2e2e2e;
    --text: #f0f0f0;
    --text-muted: #888888;
    --text-label: #9a9a9a;
    --accent: #f0f0f0;
    --border: #2a2a2a;
    --border-item: #3a3a3a;
    --tab-bg: #2a2a2a;
    --search-border: #2e2e2e;
    --search-bg: #1a1a1a;
  }
}

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

html, body { min-height: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }

/* Top bar: logo left, edit right — like 0x3 */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 1080px;
  max-width: calc(100% - 32px);
  margin: 0 auto;
  padding: 18px 0 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 6px;
  flex-shrink: 0;
}

.brand span { color: var(--text-muted); }

.edit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 6px;
}

.edit-btn:hover,
body.is-editing .edit-btn {
  color: var(--text);
  background: var(--bg-panel);
}

/* Big centered search — like 0x3 */
.hero {
  padding: 36px 24px 28px;
  display: flex;
  justify-content: center;
}

.search-bar {
  width: 100%;
  max-width: 560px;
  display: flex;
  align-items: center;
  background: var(--search-bg);
  border: 1px solid var(--search-border);
  border-radius: 24px;
  padding: 4px 8px 4px 6px;
  height: 48px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  position: relative;
}

.search-bar:focus-within {
  border-color: var(--text-muted);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

[data-color-mode="dark"] .search-bar {
  box-shadow: none;
}

[data-color-mode="dark"] .search-bar:focus-within {
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06);
}

@media (prefers-color-scheme: dark) {
  [data-color-mode="system"] .search-bar {
    box-shadow: none;
  }

  [data-color-mode="system"] .search-bar:focus-within {
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06);
  }

  [data-color-mode="system"] .tab-btn.active {
    border-bottom-color: #ffffff;
    color: #ffffff;
  }
}

/* 带图标的搜索引擎选择器 */
.engine-picker {
  position: relative;
  flex-shrink: 0;
}

.engine-trigger {
  display: flex;
  align-items: center;
  gap: 2px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 16px;
  color: var(--text-muted);
}

.engine-trigger:hover {
  background: var(--bg-panel);
}

.engine-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  object-fit: contain;
}

.engine-caret {
  opacity: 0.55;
  margin-left: 1px;
}

.engine-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 200px;
  max-height: 280px;
  overflow-y: auto;
  background: var(--bg-item);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
  padding: 6px 0;
  z-index: 40;
}

.engine-menu[hidden] {
  display: none !important;
}

.engine-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 14px;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-size: 0.875rem;
  color: var(--text);
}

.engine-option:hover,
.engine-option.active {
  background: var(--bg-panel);
}

.engine-option img {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  object-fit: contain;
  flex-shrink: 0;
}

.engine-option .engine-name {
  flex: 1;
  min-width: 0;
}

.engine-option .engine-tag {
  color: var(--text-muted);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.search-bar input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 1.0625rem;
  min-width: 0;
}

.search-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 50%;
  flex-shrink: 0;
}

.search-submit:hover { color: var(--text); }

/* Tabs centered */
.tabs-bar {
  background: var(--bg);
  padding: 0 24px;
}

.tabs-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  gap: 2px;
  flex-wrap: wrap;
  justify-content: center;
  border-bottom: 1px solid transparent;
}

.tab-btn {
  padding: 8px 18px 12px;
  border: none;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.0625rem;
  transition: color 0.12s, border-color 0.12s, opacity 0.12s, background 0.12s;
  user-select: none;
  border-radius: 6px 6px 0 0;
}

.tab-btn:hover { color: var(--text); }

.tab-btn.tab-btn-muted {
  color: #c5c5c5;
}

.tab-btn.tab-btn-muted:hover {
  color: var(--text-muted);
}

.tab-btn.tab-btn-muted.active {
  color: var(--text);
}

[data-color-mode="dark"] .tab-btn.tab-btn-muted {
  color: #555555;
}

[data-color-mode="dark"] .tab-btn.tab-btn-muted:hover {
  color: var(--text-muted);
}

@media (prefers-color-scheme: dark) {
  [data-color-mode="system"] .tab-btn.tab-btn-muted {
    color: #555555;
  }

  [data-color-mode="system"] .tab-btn.tab-btn-muted:hover {
    color: var(--text-muted);
  }
}

.tab-btn.active {
  color: var(--text);
  border-bottom-color: var(--text);
  font-weight: 500;
}

body.is-editing .tab-btn:not(.add-btn) {
  cursor: grab;
}

.tab-btn.is-dragging {
  opacity: 0.35;
  cursor: grabbing;
}

.tab-btn.drag-over {
  background: var(--bg-item-hover);
  color: var(--text);
}

[data-color-mode="dark"] .tab-btn.active {
  border-bottom-color: #ffffff;
  color: #ffffff;
}

.tab-btn.add-btn,
.add-group-btn,
.add-link-btn {
  background: var(--tab-bg);
  color: var(--text-muted);
  border: 1px dashed var(--border-item);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  border-radius: var(--radius);
}

.tab-btn.add-btn {
  margin: 4px 0 8px;
  border-bottom: 1px dashed var(--border-item);
}

.add-group-btn {
  width: 100%;
  height: 30px;
  background: transparent;
}

/* 灰色导航区固定 1080 */
.board-wrap {
  background: var(--bg-panel);
  width: 1080px;
  max-width: calc(100% - 32px);
  margin: 0 auto;
  padding: 10px 0 0;
  min-height: 280px;
  border-radius: 4px;
  overflow: hidden;
}

/* 导航区内底部装饰图，紧贴书签 */
.footer-art {
  width: 100%;
  margin: 0;
  padding: 0;
  line-height: 0;
  position: relative;
}

.footer-art img {
  display: block;
  width: 100%;
  height: auto;
  transition: filter 0.25s ease, opacity 0.25s ease;
}

/* 夜间：装饰图压暗 */
html[data-color-mode="dark"] .footer-art img {
  filter: brightness(0.45) contrast(0.92) saturate(0.85);
}

@media (prefers-color-scheme: dark) {
  html[data-color-mode="system"] .footer-art img {
    filter: brightness(0.45) contrast(0.92) saturate(0.85);
  }
}

body.is-editing .footer-art {
  opacity: 0.85;
}

.board {
  max-width: none;
  width: 100%;
  margin: 0 auto;
  padding: 8px 24px 16px;
}

body.is-editing .board {
  padding-bottom: 8px;
}

.row {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  min-height: 46px;
  column-gap: 64px;
  padding: 2px 0;
  border-radius: 6px;
  transition: background 0.12s, opacity 0.12s;
}

.row.is-dragging {
  opacity: 0.4;
}

.row.drag-over {
  background: color-mix(in srgb, var(--bg-item-hover) 80%, transparent);
  outline: 1px dashed var(--text-muted);
  outline-offset: 1px;
}

.row-label {
  color: var(--text-label);
  font-size: 1rem;
  text-align: right;
  line-height: 1.3;
  white-space: nowrap;
  user-select: none;
}

.row-label.editable {
  cursor: grab;
  border-radius: 6px;
  padding: 6px 8px;
  border: 1px dashed transparent;
}

body.is-editing .row-label.editable {
  background: var(--bg-item);
  border-color: var(--border-item);
}

.row-label.editable:hover {
  background: var(--bg-item-hover);
  border-color: var(--text-muted);
}

/* 一行 7 个链接 */
.row-links {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 2px 6px;
  align-items: center;
}

.link-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 2px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 1rem;
  width: 100%;
  min-width: 0;
  transition: opacity 0.12s, transform 0.12s, border-color 0.12s, background 0.12s;
  cursor: pointer;
  user-select: none;
}

body.is-editing .link-item:not(.add-link-btn) {
  cursor: grab;
  -webkit-user-drag: element;
  background: var(--bg-item);
  border: 1px dashed var(--border-item);
  padding: 5px 8px;
  opacity: 1;
}

.link-item:not(.add-link-btn):hover {
  opacity: 0.7;
}

.link-item.is-dragging {
  opacity: 0.35;
  cursor: grabbing;
}

.link-item.drag-over {
  opacity: 1;
  border-color: var(--text-muted);
  background: var(--bg-item-hover);
  transform: translateY(1px);
}

.row-links.drag-over {
  outline: 1px dashed var(--text-muted);
  outline-offset: 2px;
  border-radius: 6px;
}

body.is-editing .link-item:not(.add-link-btn):hover {
  border-color: var(--text-muted);
  background: var(--bg-item-hover);
  opacity: 1;
}

.add-link-btn {
  width: 100%;
  min-height: 28px;
  justify-self: stretch;
}

.link-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border-radius: 3px;
  object-fit: contain;
}

.link-icon.placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
}

body.is-editing .link-icon.placeholder {
  background: var(--bg-panel);
}

.link-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

[data-icon-style="gray"] .link-icon { filter: grayscale(1); opacity: 0.65; }
[data-icon-style="fade"] .link-icon { opacity: 0.55; }
[data-icon-style="none"] .link-icon { display: none; }

.empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Settings panel：1080 宽，比上方导航区略深一点 */
.settings-panel {
  background: var(--bg-settings);
  width: 1080px;
  max-width: calc(100% - 32px);
  margin: 12px auto 0;
  padding: 20px 24px 24px;
  border-radius: 4px;
  border-top: none;
}

.settings-inner {
  max-width: none;
  width: 100%;
  margin: 0;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px 20px;
  margin-bottom: 20px;
}

.setting-item label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.setting-item select {
  width: 100%;
  background: var(--bg-item);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: 0.8125rem;
  cursor: pointer;
}

.settings-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sync-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--bg-item);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-top: 4px;
}

.sync-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
  min-width: 280px;
}

.sync-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.sync-input {
  flex: 1;
  min-width: 140px;
  max-width: 220px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  background: var(--bg);
  font-size: 0.8125rem;
}

.sync-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.sync-msg {
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.8125rem;
}

.sync-msg.error {
  background: #f8d7da;
  color: #842029;
}

.sync-msg.ok {
  background: #d1e7dd;
  color: #0f5132;
}

[data-color-mode="dark"] .sync-msg.error {
  background: #4a2024;
  color: #f1aeb5;
}

[data-color-mode="dark"] .sync-msg.ok {
  background: #1c3d2e;
  color: #a3cfbb;
}

.btn-text {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.8125rem;
  cursor: pointer;
  text-decoration: underline;
}

.btn-text:hover { color: var(--text); }

.settings-btns { display: flex; gap: 8px; }

.btn {
  padding: 7px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-item);
  cursor: pointer;
  font-size: 0.8125rem;
}

.btn:hover { background: var(--bg-item-hover); }

.btn-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.btn-danger {
  color: #e53e3e;
  border-color: #fcc;
}

/* Edit popup */
.edit-popup {
  position: fixed;
  z-index: 9999;
  background: var(--bg-item);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  width: 220px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  display: none;
  flex-direction: column;
  gap: 6px;
  pointer-events: auto;
}

.edit-popup.is-open { display: flex; }

.edit-popup input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 9px;
  font-size: 0.8125rem;
  background: var(--bg);
}

.edit-popup input:focus {
  outline: none;
  border-color: var(--text-muted);
}

.popup-btns {
  display: flex;
  gap: 6px;
  margin-top: 2px;
}

.popup-btns .btn {
  flex: 1 1 0;
  min-width: 0;
  padding: 6px 4px;
  font-size: 0.75rem;
  white-space: nowrap;
  line-height: 1.2;
}

.popup-btns .btn-danger {
  flex: 1 1 0;
  color: #e53e3e;
  border-color: #fcc;
}

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--text);
  color: var(--bg);
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 0.8125rem;
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.2s;
  z-index: 100;
  pointer-events: none;
}

.toast.show { opacity: 1; transform: translateY(0); }

/* 页脚：设置 / 日夜间 / 版权 */
.site-footer {
  width: 1080px;
  max-width: calc(100% - 32px);
  margin: 0 auto 32px;
  padding: 18px 8px 8px;
  position: relative;
  z-index: 2;
}

.site-footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.site-footer-center {
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-footer-right {
  justify-self: end;
  color: var(--text-muted);
}

.footer-link,
.footer-mode {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1;
}

.footer-link:hover,
.footer-mode:hover {
  color: var(--text);
}

.footer-mode-icon {
  display: inline-flex;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.footer-mode-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

@media (max-width: 900px) {
  .row-links { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .settings-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .topbar { padding: 14px 16px 0; }
  .hero { padding: 24px 16px 20px; }
  .search-bar { height: 44px; }
  .board { padding: 8px 12px; }
  .row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .row-label { text-align: left; }
  .row-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}