@layer bootstrap;
@import url("https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css") layer(bootstrap);

:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --primary: #2f6bff;
  --primary-dark: #1f4fd6;
  --text: #1f2733;
  --muted: #6b7687;
  --border: #e6eaf2;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(31, 39, 51, 0.08);
  /* 新增：统一渐变与可切换的层次色 */
  --grad: linear-gradient(135deg, #3b82f6 0%, #6366f1 55%, #8b5cf6 100%);
  --header-bg: rgba(255, 255, 255, 0.82);
  --card-bg: #ffffff;
  --card-top: linear-gradient(90deg, #3b82f6, #6366f1);
  --hero-glow-1: rgba(59, 130, 246, 0.16);
  --hero-glow-2: rgba(139, 92, 246, 0.14);
  --chip-bg: rgba(47, 107, 255, 0.06);
}

/* 深色主题：只覆盖变量，组件样式一行都不用改 */
[data-theme="dark"] {
  --bg: #080c18;
  --surface: #0f1526;
  --primary: #60a5fa;
  --primary-dark: #93c5fd;
  --text: #e6ecf7;
  --muted: #93a1b8;
  --border: rgba(148, 163, 184, 0.16);
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.42);
  --header-bg: rgba(8, 12, 24, 0.78);
  --card-bg: #131b2e;
  --card-top: linear-gradient(90deg, #38bdf8, #818cf8);
  --hero-glow-1: rgba(56, 189, 248, 0.18);
  --hero-glow-2: rgba(129, 140, 248, 0.16);
  --chip-bg: rgba(96, 165, 250, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  transition: background .35s ease, color .35s ease;
}

/* 标题统一跟随主题变量。
   必须显式写：Bootstrap 在 @layer(bootstrap) 里给 h1~h6 设了固定深色 (#212529)，
   浅色模式下看不出问题，深色模式下就会变成「黑字深底」几乎看不清。
   本规则未分层，优先级高于 layer(bootstrap)，可覆盖它。 */
h1, h2, h3, h4, h5, h6 { color: var(--text); }

/* 全站柔和光斑背景（固定层，不干扰交互） */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 12% -8%, var(--hero-glow-1), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, var(--hero-glow-2), transparent 60%);
}

.container {
  width: min(1080px, 92%);
  margin: 0 auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease, background .35s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 6px 24px rgba(15, 23, 42, 0.07);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.5px;
}
.nav a {
  position: relative;
  margin-left: 26px;
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  padding: 6px 2px;
  transition: color 0.2s ease;
}
.nav a:hover { color: var(--primary); }
/* 当前所在板块高亮（滚动监听加 .active） */
.nav a.active { color: var(--primary); font-weight: 600; }
.nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2.5px;
  border-radius: 3px;
  background: var(--grad);
  animation: navIn .28s cubic-bezier(.2,.7,.3,1);
}
@keyframes navIn { from { transform: scaleX(.3); opacity: 0; } to { transform: scaleX(1); opacity: 1; } }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--text);
}
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 8px 0 16px;
  border-top: 1px solid var(--border);
}
.mobile-nav a {
  padding: 10px 0;
  color: var(--muted);
  text-decoration: none;
}

/* Hero */
.hero {
  position: relative;
  padding: 104px 0 76px;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 16px;
  margin-bottom: 22px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--chip-bg);
  border: 1px solid var(--border);
}
.hero h1 {
  font-size: clamp(34px, 5.6vw, 58px);
  margin: 0 0 14px;
  letter-spacing: .5px;
  font-weight: 800;
  line-height: 1.16;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.slogan {
  font-size: clamp(17px, 2.2vw, 21px);
  color: var(--text);
  opacity: .8;
  font-weight: 600;
  margin: 0 0 20px;
}
.hero-desc {
  max-width: 620px;
  margin: 0 auto 30px;
  color: var(--muted);
  font-size: 16px;
}
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}
.cta {
  display: inline-block;
  background: var(--grad);
  color: #fff;
  text-decoration: none;
  padding: 13px 32px;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.32);
  transition: transform 0.2s cubic-bezier(.2,.7,.3,1), box-shadow 0.2s ease;
}
.cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(59, 130, 246, 0.42);
}
.cta.ghost {
  background: transparent;
  color: var(--primary-dark);
  border: 1px solid var(--border);
  box-shadow: none;
}
.cta.ghost:hover {
  background: var(--chip-bg);
  box-shadow: 0 10px 22px rgba(31, 39, 51, 0.10);
}

/* Hero 数据统计条 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  max-width: 620px;
  margin: 0 auto;
}
.hero-stat {
  padding: 16px 8px;
  border-radius: 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: 0 6px 18px rgba(31, 39, 51, 0.05);
  transition: transform .24s cubic-bezier(.2,.7,.3,1), box-shadow .24s ease;
}
.hero-stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(31, 39, 51, 0.10);
}
.hero-stat b {
  display: block;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-stat span { font-size: 12.5px; color: var(--muted); }
@media (max-width: 560px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--surface); }
.section-title {
  text-align: center;
  font-size: 28px;
  margin: 0 0 32px;
  position: relative;
}
.section-title::after {
  content: "";
  display: block;
  width: 58px;
  height: 4px;
  border-radius: 4px;
  background: var(--grad);
  margin: 14px auto 0;
}
.section-text {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  color: var(--muted);
  font-size: 16px;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}
.card {
  position: relative;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
  transition: transform .28s cubic-bezier(.2,.7,.3,1), box-shadow .28s ease, border-color .28s ease;
}
/* 顶部渐变线：hover 时从左展开 */
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-top);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .34s cubic-bezier(.2,.7,.3,1);
}
.card:hover::before { transform: scaleX(1); }
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.14);
  border-color: rgba(59, 130, 246, 0.34);
}
.card-icon {
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 14px;
  border-radius: 15px;
  background: var(--chip-bg);
  border: 1px solid var(--border);
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

/* Contact */
.contact-list {
  max-width: 560px;
  margin: 0 auto;
  list-style: none;
  padding: 0;
}
.contact-list li {
  display: flex;
  justify-content: space-between;
  padding: 15px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  background: var(--card-bg);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.contact-list li:hover {
  transform: translateX(4px);
  border-color: rgba(59, 130, 246, 0.38);
  box-shadow: 0 10px 24px rgba(31, 39, 51, 0.08);
}
.contact-list li span { color: var(--muted); }

/* Footer */
.site-footer {
  background: var(--surface);
  color: var(--muted);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 30px 0;
  font-size: 14px;
}
.site-footer p { margin: 6px 0; }
.site-footer a { color: var(--primary); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* 公益板块内链接 */
.card a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}
.card a:hover { text-decoration: underline; }

/* 实时数据板块 */
.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
  align-items: start;   /* 各卡按自身内容高度排布，避免同行被拉高后下方留白参差 */
}
.data-card .data-icon { font-size: 30px; margin-bottom: 10px; }
.data-card h3 { margin: 0 0 12px; font-size: 17px; }
.data-body { color: var(--text); font-size: 15px; min-height: 70px; }
.data-body .loading { color: var(--muted); font-size: 14px; }
.data-body .err { color: #c0392b; font-size: 13px; }
.retry {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 14px;
  font: inherit;
  font-size: 12.5px;
  color: var(--primary);
  background: #fff;
  border: 1px solid var(--primary);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.retry:hover { background: var(--primary); color: #fff; }
.data-main { font-size: 22px; font-weight: 700; color: var(--primary-dark); line-height: 1.35; margin-bottom: 6px; word-break: break-word; }
.data-sub { color: var(--text); font-size: 14px; margin-bottom: 5px; word-break: break-word; }
.data-meta { color: var(--muted); font-size: 12.5px; line-height: 1.5; word-break: break-word; }
.json-pre { margin: 0; white-space: pre-wrap; word-break: break-all; font-size: 12.5px; line-height: 1.6; }
.fx-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
}
.fx-row:last-child { border-bottom: none; }
.fx-row .cur { color: var(--muted); font-size: 14px; }
.fx-row .val { font-weight: 700; color: var(--primary-dark); font-size: 15px; }

/* 实用工具箱 —— 与全站统一的浅色区块（深色主题自动适配） */
#tools {
  position: relative;
  overflow: hidden;
  color: var(--text);
}
#tools .container { position: relative; }

.tool-card {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding: 8px 8px 22px;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  isolation: isolate;
  overflow: hidden;
}

/* 标签栏 */
.tool-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 14px 18px;
  border-bottom: 1px solid var(--border);
}
.tool-tab {
  position: relative;
  padding: 9px 17px;
  border-radius: 999px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--muted);
  background: var(--chip-bg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform .2s cubic-bezier(.2,.7,.3,1), box-shadow .2s ease, color .2s ease, border-color .2s ease;
}
.tool-tab:hover {
  color: var(--text);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(47,107,255,.18);
}
.tool-tab.active {
  color: #fff;
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 0 0 1px rgba(47,107,255,.35), 0 12px 28px rgba(47,107,255,.28);
  transform: translateY(-1px);
}

/* 面板切换淡入 */
.tool-pane { display: none; padding: 22px 18px 6px; }
.tool-pane.active { display: block; animation: paneIn .34s cubic-bezier(.2,.7,.3,1); }
@keyframes paneIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.tool-row { display: flex; align-items: center; gap: 12px; margin-bottom: 15px; flex-wrap: wrap; }
.tool-row label { min-width: 92px; color: var(--muted); font-size: 13.5px; font-weight: 600; }
.tool-row label b { color: var(--primary); }

/* 输入控件 */
.tool-pane input[type=text],
.tool-pane input[type=number],
.tool-pane input[type=datetime-local],
.tool-pane select,
.tool-pane textarea {
  flex: 1 1 170px;
  min-width: 140px;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 13px;
  font: inherit;
  font-size: 14px;
  background: var(--surface);
  color: var(--text);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.tool-pane input::placeholder,
.tool-pane textarea::placeholder { color: var(--muted); }
.tool-pane input:focus,
.tool-pane select:focus,
.tool-pane textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(47,107,255,.18), 0 10px 26px rgba(47,107,255,.12);
}
.tool-pane textarea {
  width: 100%;
  min-height: 104px;
  resize: vertical;
  margin-bottom: 12px;
  line-height: 1.6;
}
.tool-pane select option { background: var(--surface); color: var(--text); }
.tool-pane input[type=range] {
  flex: 1 1 200px;
  padding: 0;
  border: none;
  background: transparent;
  accent-color: var(--primary);
}
.tool-pane input[type=checkbox] { flex: 0 0 auto; min-width: 0; width: 16px; height: 16px; accent-color: var(--primary); }

.tool-eq { color: var(--primary); font-weight: 800; }

/* 按钮 */
.tool-btn {
  border: none;
  border-radius: 13px;
  padding: 11px 22px;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: .2px;
  color: #fff;
  background: var(--grad);
  box-shadow: 0 10px 24px rgba(47,107,255,.26);
  transition: transform .2s cubic-bezier(.2,.7,.3,1), box-shadow .2s ease, filter .2s ease;
}
.tool-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 16px 34px rgba(47,107,255,.38);
}
.tool-btn:active { transform: translateY(0); }
.tool-btn.ghost {
  margin-left: 8px;
  color: var(--text);
  background: var(--chip-bg);
  border: 1px solid var(--border);
  box-shadow: none;
}
.tool-btn.ghost:hover {
  color: var(--primary);
  background: var(--surface);
  box-shadow: 0 10px 24px rgba(47,107,255,.12);
}
.tool-btns { display: flex; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }

/* 输出：终端风 */
.tool-out {
  margin-top: 14px;
  padding: 14px 16px;
  min-height: 26px;
  max-height: 320px;
  overflow: auto;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: "SFMono-Regular", ui-monospace, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 13.5px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}
.tool-out::-webkit-scrollbar { width: 8px; height: 8px; }
.tool-out::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
.tool-out .err { color: #e5484d; }
.json-pre { margin: 0; white-space: pre-wrap; word-break: break-all; font-size: 12.5px; line-height: 1.6; }

.tool-now {
  font-weight: 700;
  font-size: 19px;
  color: var(--primary);
  font-family: "SFMono-Regular", ui-monospace, Consolas, Menlo, monospace;
}

/* 复选 chips */
.tool-checks { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; font-size: 13.5px; color: var(--muted); }
.tool-checks label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 15px;
  border-radius: 999px;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.tool-checks label:hover { border-color: var(--primary); color: var(--text); background: var(--surface); }

/* 统计数字块 */
.tool-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.tool-stats .stat {
  text-align: center;
  padding: 15px 8px;
  border-radius: 15px;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  transition: transform .2s ease, box-shadow .2s ease;
}
.tool-stats .stat:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(47,107,255,.14); }
.tool-stats .stat b {
  display: block;
  font-size: 25px;
  line-height: 1.2;
  color: var(--primary);
}
.tool-stats .stat span { font-size: 12px; color: var(--muted); }

/* 移动端适配 */
@media (max-width: 640px) {
  .tool-card { border-radius: 18px; padding: 6px 6px 16px; }
  .tool-tabs { padding: 12px 10px 14px; gap: 8px; }
  .tool-tab { padding: 8px 13px; font-size: 12.5px; }
  .tool-pane { padding: 18px 12px 4px; }
  .tool-row label { min-width: 72px; }
}

/* 尊重「减少动效」偏好 */
@media (prefers-reduced-motion: reduce) {
  .tool-pane.active { animation: none; }
}

/* ===== 今天吃什么（菜谱抽签） ===== */
.fd-row { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 11px; }
.fd-label {
  flex: 0 0 34px;
  padding-top: 9px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
}
.fd-chips { display: flex; flex-wrap: wrap; gap: 8px; flex: 1 1 auto; }
.fd-chip {
  padding: 8px 15px;
  border-radius: 999px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  background: var(--chip-bg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform .2s cubic-bezier(.2, .7, .3, 1), box-shadow .2s ease, color .2s ease, border-color .2s ease;
}
.fd-chip:hover {
  color: var(--text);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(47, 107, 255, .18);
}
.fd-chip.active {
  color: #fff;
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 0 0 1px rgba(47, 107, 255, .35), 0 10px 24px rgba(47, 107, 255, .3);
}
.fd-hero {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 9px;
}
.fd-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 11px; }
.fd-tag {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--text);
  background: var(--chip-bg);
  border: 1px solid var(--border);
}
.fd-tag.alt { color: var(--primary); border-color: var(--primary); }
.fd-tag.cuisine {
  color: var(--primary);
  font-weight: 700;
  background: var(--chip-bg);
  border-color: var(--primary);
}
.fd-line { margin: 5px 0; color: var(--text); }
.fd-line b { display: inline-block; min-width: 48px; color: var(--primary); }
.fd-meta { margin-top: 9px; font-size: 12px; color: var(--muted); }
.fd-roll {
  font-size: 20px;
  font-weight: 800;
  text-align: center;
  color: var(--primary);
  animation: fdRoll .16s linear infinite alternate;
}
@keyframes fdRoll {
  from { opacity: .5; transform: translateY(-3px); }
  to   { opacity: 1; transform: translateY(3px); }
}

/* 公益板块子标题 */
.public-sub {
  margin: 38px 0 14px;
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  text-align: center;
}

/* Responsive */
@media (max-width: 640px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  .mobile-nav.open { display: flex; }
  .hero { padding: 72px 0 60px; }
  #toTop { right: 14px; bottom: 18px; }
}

/* ===== 顶部滚动进度条 ===== */
#progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0;
  z-index: 60;
  background: var(--grad);
  border-radius: 0 3px 3px 0;
  transition: width .08s linear;
}

/* ===== 回到顶部 ===== */
#toTop {
  position: fixed;
  right: 22px;
  bottom: 26px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--primary);
  font-size: 19px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(31, 39, 51, 0.16);
  opacity: 0;
  transform: translateY(14px) scale(.9);
  pointer-events: none;
  transition: opacity .28s ease, transform .28s cubic-bezier(.2,.7,.3,1);
  z-index: 55;
}
#toTop.show { opacity: 1; transform: none; pointer-events: auto; }
#toTop:hover { transform: translateY(-3px); }

/* ===== 主题切换按钮 ===== */
.header-actions { display: flex; align-items: center; gap: 10px; }
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s cubic-bezier(.2,.7,.3,1), background .25s ease;
}
.theme-toggle:hover { transform: rotate(-16deg) scale(1.08); }

/* ===== 板块滚动进场 ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .62s cubic-bezier(.2,.7,.3,1), transform .62s cubic-bezier(.2,.7,.3,1);
}
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ===== 工具箱：搜索过滤 ===== */
.tool-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.tool-search input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.tool-search input::placeholder { color: var(--muted); }
.tool-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(47, 107, 255, .18);
}
.tool-search .count { font-size: 12px; color: var(--muted); white-space: nowrap; }
.tool-tab.hidden { display: none; }
.tool-empty {
  display: none;
  padding: 30px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
.tool-empty.show { display: block; }

/* ===== 数据区：工具栏 / 一键刷新 ===== */
.data-toolbar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.data-refresh {
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--primary-dark);
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .2s cubic-bezier(.2,.7,.3,1), box-shadow .2s ease, border-color .2s ease;
}
.data-refresh:hover {
  transform: translateY(-2px);
  border-color: rgba(59, 130, 246, .42);
  box-shadow: 0 10px 22px rgba(31, 39, 51, 0.10);
}
.data-refresh:disabled { opacity: .6; cursor: default; transform: none; }
.data-updated { font-size: 12.5px; color: var(--muted); }

/* ===== 关于本站：能力标签云 ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
}
.tag-cloud li {
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--primary-dark);
  background: var(--chip-bg);
  border: 1px solid var(--border);
  transition: transform .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s ease;
}
.tag-cloud li:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(31, 39, 51, 0.10);
}

/* ===== 联系方式：点击复制 ===== */
.contact-list li.copyable { cursor: pointer; }
.contact-list li.copyable b { font-weight: 600; }
.copy-hint {
  font-style: normal;
  font-size: 12px;
  margin-left: 10px;
  padding: 2px 9px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid var(--border);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .2s ease, transform .2s ease;
}
.contact-list li.copyable:hover .copy-hint { opacity: 1; transform: none; }
@media (hover: none) { .copy-hint { opacity: 1; transform: none; } }

/* ===== 页脚 ===== */
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin-bottom: 14px;
}
.footer-links a {
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s ease;
}
.footer-links a:hover { color: var(--primary); }
.footer-note { font-size: 13px; opacity: .85; margin-bottom: 6px; }

/* ===== 顶栏搜索触发按钮 ===== */
.search-trigger {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.search-trigger:hover {
  color: var(--primary);
  border-color: rgba(59, 130, 246, .42);
  box-shadow: 0 8px 18px rgba(31, 39, 51, 0.08);
}
.search-trigger kbd {
  font-family: inherit;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  color: var(--muted);
}

/* ===== 全局搜索 ⌘K ===== */
.cmdk {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 16px 16px;
  background: rgba(8, 12, 24, .48);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity .18s ease;
}
.cmdk.show { opacity: 1; }
.cmdk[hidden] { display: none; }

.cmdk-panel {
  width: min(620px, 100%);
  max-height: 62vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: 0 30px 70px rgba(8, 12, 24, .34);
  transform: translateY(-10px) scale(.985);
  transition: transform .2s cubic-bezier(.2,.7,.3,1);
}
.cmdk.show .cmdk-panel { transform: none; }

.cmdk-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.cmdk-icon { font-size: 16px; opacity: .7; }
.cmdk-head input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 15px;
}
.cmdk-head input::placeholder { color: var(--muted); opacity: .75; }
.cmdk-head kbd {
  font-family: inherit;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--chip-bg);
  border: 1px solid var(--border);
  color: var(--muted);
}

.cmdk-list { overflow-y: auto; padding: 8px; }
.cmdk-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
}
.cmdk-item.on { background: var(--chip-bg); }
.cmdk-ico { font-size: 17px; flex: 0 0 auto; }
.cmdk-txt { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.cmdk-txt b {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cmdk-txt em {
  font-style: normal;
  font-size: 12.5px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cmdk-type {
  flex: 0 0 auto;
  font-size: 11.5px;
  padding: 2px 9px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid var(--border);
}
.cmdk-empty { padding: 34px 16px; text-align: center; color: var(--muted); font-size: 14px; }

.cmdk-foot {
  display: flex;
  gap: 16px;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}

/* ===== 数据卡：缓存标记 ===== */
.cache-note {
  display: inline-block;
  margin-top: 6px;
  font-size: 11.5px;
  padding: 1px 8px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid var(--border);
  opacity: .85;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  z-index: 95;
  transform: translate(-50%, 16px);
  padding: 11px 20px;
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: 0 14px 34px rgba(8, 12, 24, .22);
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease, transform .22s cubic-bezier(.2,.7,.3,1);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ===== 工具面板收藏栏 + 筛选 chip ===== */
.tool-pane-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.tool-pane-name { font-size: 14px; font-weight: 700; color: var(--text); letter-spacing: .3px; }
.fav-btn {
  flex: 0 0 auto;
  width: 34px; height: 34px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--muted);
  font-size: 17px; line-height: 1;
  cursor: pointer;
  transition: transform .2s cubic-bezier(.2,.7,.3,1), color .2s ease, background .2s ease, border-color .2s ease;
}
.fav-btn:hover { transform: scale(1.12); border-color: #f5c542; }
.fav-btn.active { color: #f5c542; background: rgba(245, 197, 66, .12); border-color: rgba(245, 197, 66, .5); }

.tool-chips {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.tool-chip {
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: all .2s ease;
}
.tool-chip:hover { color: var(--primary); border-color: rgba(59, 130, 246, .4); }
.tool-chip.active {
  color: #fff;
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(59, 130, 246, .3);
}

/* ===== 文本对比 ===== */
.diff-stat { margin-bottom: 12px; font-size: 14px; }
.diff-stat .dl { color: #e5484d; }
.diff-stat .da { color: #16a34a; }
.diff-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.diff-cols h4 { margin: 0 0 8px; font-size: 12.5px; color: var(--muted); font-weight: 600; }
.diff-row { padding: 6px 10px; border-radius: 8px; font-size: 13px; word-break: break-all; margin-bottom: 6px; }
.diff-row.del { background: rgba(229, 72, 77, .1); color: #e5484d; }
.diff-row.add { background: rgba(22, 163, 74, .1); color: #16a34a; }
.diff-empty { color: var(--muted); font-size: 13px; padding: 6px 0; }

/* ===== Markdown 预览 ===== */
.md-preview { line-height: 1.7; }
.md-preview h1, .md-preview h2, .md-preview h3, .md-preview h4 { color: var(--text); margin: 14px 0 8px; }
.md-preview h1 { font-size: 22px; }
.md-preview h2 { font-size: 19px; }
.md-preview h3 { font-size: 16px; }
.md-preview p { margin: 8px 0; color: var(--text); }
.md-preview code { background: var(--chip-bg); color: var(--primary); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; }
.md-preview a { color: var(--primary); }
.md-preview blockquote { border-left: 3px solid var(--primary); margin: 8px 0; padding: 4px 12px; color: var(--muted); background: var(--chip-bg); }
.md-preview ul, .md-preview ol { margin: 8px 0; padding-left: 22px; color: var(--text); }
.md-preview hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }

/* ===== Emoji 面板 ===== */
.emoji-btn {
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--chip-bg);
  font-size: 21px; line-height: 1;
  cursor: pointer;
  transition: transform .18s cubic-bezier(.2,.7,.3,1), background .18s ease;
}
.emoji-btn:hover { transform: translateY(-3px) scale(1.08); background: rgba(47, 107, 255, .1); }
.emoji-btn.copied { background: rgba(22, 163, 74, .16); border-color: #16a34a; }

/* ===== 工具内通用：勾选项 / 复选 ===== */
.tool-check { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); margin: 4px 0 12px; cursor: pointer; }
.tool-check input { accent-color: var(--primary); }

@media (max-width: 640px) {
  .search-trigger kbd { display: none; }
  .cmdk { padding: 8vh 10px 10px; }
  .cmdk-foot { display: none; }
}

/* ===== 历史上的今天（时间线） ===== */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 780px;
  margin: 0 auto;
}
.ht-summary { text-align: center; color: var(--muted); font-size: 14px; margin-bottom: 8px; }
.ht-summary b { color: var(--primary); }

.ht-item { display: flex; gap: 16px; align-items: flex-start; padding: 18px 20px; }
.ht-year {
  flex: 0 0 66px;
  text-align: center;
  font-weight: 800;
  font-size: 15px;
  color: #fff;
  background: var(--grad);
  border-radius: 12px;
  padding: 10px 6px;
  line-height: 1.25;
  box-shadow: 0 8px 18px rgba(59, 130, 246, .22);
}
.ht-main { flex: 1 1 auto; min-width: 0; }
.ht-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ht-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--chip-bg);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.ht-title { margin: 0; font-size: 16.5px; font-weight: 700; flex: 1 1 auto; min-width: 0; }
.ht-toggle {
  margin-left: auto;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.ht-toggle:hover { background: var(--chip-bg); border-color: var(--primary); }
.ht-detail { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--border); }
.ht-detail[hidden] { display: none; }
.ht-cover {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}
.ht-desc { color: var(--text); font-size: 14.5px; line-height: 1.78; word-break: break-word; }
.ht-desc a { color: var(--primary); text-decoration: none; font-weight: 600; }
.ht-desc a:hover { text-decoration: underline; }
.ht-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}
.ht-link:hover { text-decoration: underline; }
.ht-empty { text-align: center; color: var(--muted); padding: 26px 12px; }
.ht-empty .loading { color: var(--muted); }

@media (max-width: 560px) {
  .ht-item { gap: 11px; padding: 15px 14px; }
  .ht-year { flex-basis: 56px; font-size: 13.5px; padding: 8px 4px; }
  .ht-title { font-size: 15px; }
}

/* ============ 新增：工具箱搜索命中高亮 ============ */
.tool-tab mark.hl {
  background: var(--primary);
  color: #fff;
  border-radius: 4px;
  padding: 1px 3px;
  font: inherit;
}

/* ============ 新增：密码强度检测 ============ */
.pwd-meter { margin: 6px 0 10px; }
.pwd-bar { height: 8px; border-radius: 999px; background: var(--chip-bg); overflow: hidden; border: 1px solid var(--border); }
.pwd-fill { display: block; height: 100%; width: 0; border-radius: 999px; transition: width .3s ease, background .3s ease; background: var(--border); }
.pwd-label { font-size: 13px; font-weight: 700; margin-top: 6px; color: var(--muted); }
.pwd-checks { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 8px; }
.pwd-check { font-size: 12.5px; color: var(--muted); }
.pwd-check.ok { color: #16a34a; font-weight: 600; }

/* ============ 新增：URL 参数解析表格 ============ */
.qs-table { width: 100%; border-collapse: collapse; font-size: 13.5px; margin-top: 4px; }
.qs-table th, .qs-table td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.qs-table th { color: var(--muted); font-weight: 600; background: var(--chip-bg); }
.qs-table td { word-break: break-all; }

/* ============ 新增：空气质量卡（交互：城市切换） ============ */
.aqi-sel {
  width: 100%; margin-bottom: 10px; padding: 9px 12px;
  border: 1px solid var(--border); border-radius: 10px;
  background: var(--surface); color: var(--text); font: inherit; font-size: 14px;
}
.aqi-sel:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47,107,255,.18); }

/* ============ 新增：法定节假日倒计时卡 ============ */
.hol-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.hol-row { display: flex; align-items: center; gap: 10px; font-size: 13px; padding: 6px 10px; background: var(--chip-bg); border: 1px solid var(--border); border-radius: 10px; }
.hol-row span { font-weight: 600; color: var(--text); }
.hol-row b { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; }
.hol-row i { color: var(--primary); font-style: normal; font-weight: 600; }

/* ============ 新增：实用导航板块 ============ */
.links-cat { margin-top: 22px; }
.links-cat-title { font-size: 16px; font-weight: 700; color: var(--text); margin: 0 0 12px; }
.links-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.link-chip {
  display: inline-flex; align-items: center; padding: 9px 16px; border-radius: 999px;
  background: var(--card-bg); border: 1px solid var(--border); color: var(--text);
  text-decoration: none; font-size: 14px; font-weight: 500;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, color .2s ease;
}
.link-chip:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: 0 8px 20px rgba(47,107,255,.15); color: var(--primary); }

/* ============ 新增：更新日志板块 ============ */
.changelog { margin-top: 18px; display: flex; flex-direction: column; border-left: 2px solid var(--border); padding-left: 22px; }
.cl-item { position: relative; padding: 0 0 26px; }
.cl-item::before { content: ''; position: absolute; left: -29px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--grad); border: 2px solid var(--card-bg); }
.cl-date { font-size: 13px; font-weight: 700; color: var(--primary); }
.cl-body { margin-top: 6px; font-size: 14.5px; line-height: 1.7; color: var(--text); }

/* ============ 新增：历史上的今天 收藏 / 复制 ============ */
.ht-head { flex-wrap: wrap; }
.ht-actions { display: inline-flex; gap: 6px; align-items: center; }
.ht-fav, .ht-copy {
  font: inherit; font-size: 12.5px; font-weight: 600; border: 1px solid var(--border);
  background: var(--chip-bg); color: var(--muted); border-radius: 999px; padding: 4px 10px;
  cursor: pointer; transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.ht-fav:hover, .ht-copy:hover { border-color: var(--primary); color: var(--primary); }
.ht-fav.active { color: #f5b301; border-color: #f5b301; }

@media (max-width: 560px) {
  .links-grid { gap: 8px; }
  .link-chip { padding: 8px 13px; font-size: 13px; }
  .changelog { padding-left: 18px; }
  .cl-item::before { left: -25px; }
}