/* ------------------------------------------------------------------
   喵喵笔记官网 · 一套浅色主题
   与桌面应用共用同一组颜色，切换成本几乎为零。
   ------------------------------------------------------------------ */

:root {
  --bg: #fbf7f1;
  --bg-soft: #f6efe6;
  --surface: #fffdfa;
  --fg: #3b3530;
  --fg-body: #4a433c;
  --muted: #8b8079;
  --faint: #b3a89f;
  --accent: #f08a5d;
  --accent-strong: #e76f51;
  --accent-soft: #fde6d8;
  --border: rgba(120, 100, 85, 0.12);
  --border-strong: rgba(120, 100, 85, 0.2);
  --shadow-sm: 0 1px 2px rgba(80, 60, 45, 0.05), 0 8px 24px rgba(80, 60, 45, 0.06);
  --shadow-lg: 0 24px 60px rgba(80, 60, 45, 0.14);
  --radius-sm: 9px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg-body);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ------------------------------------------------------------------ topbar */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 22px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 650;
  color: var(--fg);
}

.brand__icon {
  border-radius: 7px;
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-toggle {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.lang-toggle:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.topbar__link {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
  transition: color 0.15s ease;
}

.topbar__link:hover {
  color: var(--accent-strong);
}

/* ------------------------------------------------------------------ hero */

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 48px 0 20px;
}

.hero__icon {
  border-radius: 26px;
  box-shadow: var(--shadow-sm);
}

.hero__title {
  margin: 26px 0 6px;
  font-size: clamp(34px, 5vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.8px;
  font-weight: 750;
  color: var(--fg);
}

.hero__tagline {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 550;
  color: var(--accent-strong);
}

.hero__desc {
  max-width: 560px;
  margin: 0 0 30px;
  font-size: 15.5px;
  color: var(--muted);
}

/* ------------------------------------------------------------------ downloads */

.downloads {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 196px;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--fg);
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 10px 28px rgba(80, 60, 45, 0.12);
}

.btn--primary {
  border-color: transparent;
  background: linear-gradient(135deg, #f9a37a, #e76f51);
  color: #fff;
  box-shadow: 0 10px 26px rgba(231, 111, 81, 0.32);
}

.btn--primary:hover {
  box-shadow: 0 14px 34px rgba(231, 111, 81, 0.4);
}

.btn__meta {
  font-size: 11.5px;
  font-weight: 450;
  opacity: 0.72;
}

.hero__hint {
  margin: 18px 0 0;
  font-size: 12.5px;
  color: var(--faint);
}

.hero__version {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  min-height: 18px;
}

/* ------------------------------------------------------------------ shot */

.shot {
  margin: 36px 0 0;
  padding: 0;
}

.shot__image {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  background: var(--surface);
}

/* ------------------------------------------------------------------ features */

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 56px;
}

.feature {
  padding: 24px 22px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}

.feature h2 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 680;
  color: var(--fg);
}

.feature p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

/* ------------------------------------------------------------------ privacy */

.privacy {
  margin-top: 56px;
  padding: 28px 26px;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
}

.privacy h2 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 680;
  color: var(--fg);
}

.privacy__list {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  color: #7a5a48;
}

.privacy__list li + li {
  margin-top: 6px;
}

/* ------------------------------------------------------------------ footer */

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 26px 24px 40px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  color: var(--faint);
}

.footer__left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer__dot {
  opacity: 0.5;
}

.footer a:hover {
  color: var(--accent-strong);
}

/* ------------------------------------------------------------------ responsive */

@media (max-width: 760px) {
  .features {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 26px;
  }

  .btn {
    width: 100%;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* ------------------------------------------------------------------ stats page */

.stats-page {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.stats-title {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 750;
  letter-spacing: -0.6px;
  color: var(--fg);
}

.stats-sub {
  margin: 0 0 32px;
  font-size: 14.5px;
  color: var(--muted);
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 36px;
}

.stat-card {
  padding: 20px 22px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.stat-card b {
  display: block;
  font-size: 34px;
  font-weight: 740;
  line-height: 1.15;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}

.stat-card span {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--muted);
}

.stats-block {
  margin-bottom: 32px;
}

.stats-block h2 {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 680;
  color: var(--fg);
}

.city-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.city-row {
  display: grid;
  grid-template-columns: 140px 1fr 44px;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}

.city-name {
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.city-bar {
  display: block;
  height: 10px;
  border-radius: 99px;
  background: var(--bg-soft);
  overflow: hidden;
}

.city-bar i {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, #f9a37a, #e76f51);
}

.city-count {
  text-align: right;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.daily-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 140px;
  padding: 12px 14px 0;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}

.day-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  gap: 6px;
}

.day-col i {
  display: block;
  width: 100%;
  max-width: 26px;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #f9a37a, #e76f51);
}

.day-col span {
  font-size: 10.5px;
  line-height: 16px;
  height: 16px;
  color: var(--muted);
  white-space: nowrap;
}

.stats-empty {
  font-size: 13px;
  color: var(--faint);
  padding: 16px 0;
}

.stats-foot {
  margin-top: 40px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--faint);
}

@media (max-width: 640px) {
  .stat-cards {
    grid-template-columns: 1fr;
  }

  .city-row {
    grid-template-columns: 90px 1fr 38px;
  }
}