:root {
  --bg-top: #132847;
  --bg-bottom: #0d1c34;
  --panel: rgba(30, 49, 82, 0.82);
  --panel-soft: rgba(38, 60, 96, 0.74);
  --panel-strong: rgba(25, 43, 73, 0.96);
  --line: rgba(255, 255, 255, 0.1);
  --line-soft: rgba(255, 255, 255, 0.06);
  --text: #eff5ff;
  --muted: rgba(222, 232, 247, 0.72);
  --accent: #ffca45;
  --accent-soft: rgba(255, 202, 69, 0.18);
  --blue: #72b8ff;
  --green: #7fd8b0;
  --shadow: 0 22px 60px rgba(4, 10, 22, 0.34);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, rgba(114, 184, 255, 0.14), transparent 24%),
    radial-gradient(circle at top right, rgba(255, 202, 69, 0.08), transparent 18%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}

body.theme-light {
  --bg-top: #edf3fb;
  --bg-bottom: #dfe9f5;
  --panel: rgba(255, 255, 255, 0.76);
  --panel-soft: rgba(255, 255, 255, 0.7);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(19, 40, 71, 0.12);
  --line-soft: rgba(19, 40, 71, 0.08);
  --text: #18304f;
  --muted: rgba(24, 48, 79, 0.7);
  --shadow: 0 20px 52px rgba(74, 99, 132, 0.16);
}

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.topbar,
.page-shell {
  width: min(1400px, calc(100% - 42px));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 40;
  display: grid;
  grid-template-columns: 170px minmax(300px, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin-top: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(17, 33, 57, 0.74);
  backdrop-filter: blur(22px);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.18);
}

body.theme-light .topbar {
  background: rgba(255, 255, 255, 0.66);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.08rem;
  font-weight: 700;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ffc84c, #ff8e3c);
  box-shadow: 0 0 0 8px rgba(255, 200, 76, 0.16);
}

.searchbox {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.searchbox input,
.searchbox button,
.theme-toggle,
.unit-toggle,
.city-pill,
.mini-chip {
  min-height: 44px;
  border-radius: 14px;
  border: 1px solid var(--line);
}

.searchbox input {
  padding: 0 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  outline: none;
}

.searchbox input::placeholder {
  color: var(--muted);
}

.searchbox button,
.theme-toggle,
.unit-toggle {
  padding: 0 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle.is-light {
  background: rgba(114, 184, 255, 0.16);
}

.page-shell {
  padding: 22px 0 44px;
}

.city-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.city-pill,
.mini-chip {
  padding: 0 16px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.05);
}

.city-pill.is-active,
.mini-chip.is-active {
  color: var(--text);
  border-color: rgba(255, 202, 69, 0.4);
  background: var(--accent-soft);
}

.hero-layout,
.bottom-layout {
  display: grid;
  gap: 18px;
}

.hero-layout {
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.76fr) 280px;
  align-items: stretch;
}

.bottom-layout {
  grid-template-columns: minmax(0, 1fr) 360px;
  margin-top: 18px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.panel-primary {
  background:
    radial-gradient(circle at top right, rgba(114, 184, 255, 0.18), transparent 24%),
    linear-gradient(180deg, rgba(41, 66, 107, 0.9), rgba(24, 40, 68, 0.95));
}

body.theme-light .panel-primary {
  background:
    radial-gradient(circle at top right, rgba(114, 184, 255, 0.16), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(247, 250, 255, 0.96));
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 420ms ease, transform 420ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.current-card,
.radar-card,
.hourly-section,
.trend-section,
.daily-section,
.life-section,
.links-section {
  padding: 22px;
}

.sidebar-stack {
  display: grid;
  gap: 18px;
}

.side-card {
  padding: 20px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.current-head,
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.current-head h1,
.section-head h2 {
  margin: 0;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.time-badge {
  min-height: 32px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.88rem;
}

.current-main {
  display: grid;
  grid-template-columns: 96px 160px 1fr;
  gap: 18px;
  align-items: center;
  margin-top: 18px;
}

.weather-icon {
  display: grid;
  place-items: center;
  width: 96px;
  height: 96px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 3rem;
}

.temp-wrap strong {
  display: block;
  font-size: 4.2rem;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.05em;
}

.temp-wrap span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.summary-copy p,
.side-copy,
.radar-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.tag-row span {
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.metric-grid article,
.side-value,
.sun-row > div,
.hour-card,
.daily-item,
.life-item {
  border-radius: 18px;
}

.metric-grid article {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line-soft);
}

.metric-grid span,
.hour-card span,
.daily-item span,
.life-item span,
.sun-row span {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
}

.metric-grid strong,
.hour-card strong,
.daily-item strong,
.life-item strong,
.sun-row strong {
  display: block;
  margin-top: 8px;
  font-size: 1.05rem;
  font-weight: 600;
}

.radar-map {
  position: relative;
  height: 290px;
  margin-top: 18px;
  overflow: hidden;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(224, 231, 240, 0.94), rgba(196, 209, 225, 0.9)),
    linear-gradient(140deg, #dfe9f3, #c8d5e3);
}

.radar-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(48, 79, 114, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48, 79, 114, 0.09) 1px, transparent 1px);
  background-size: 34px 34px;
}

.radar-cloud,
.radar-point {
  position: absolute;
  border-radius: 999px;
}

.radar-cloud {
  filter: blur(8px);
  opacity: 0.8;
}

.cloud-a {
  top: 28px;
  left: 62px;
  width: 150px;
  height: 76px;
  background: rgba(120, 159, 198, 0.35);
}

.cloud-b {
  top: 116px;
  right: 54px;
  width: 180px;
  height: 92px;
  background: rgba(110, 155, 201, 0.28);
}

.cloud-c {
  bottom: 34px;
  left: 180px;
  width: 126px;
  height: 62px;
  background: rgba(124, 170, 212, 0.24);
}

.radar-point {
  top: 124px;
  left: 52%;
  width: 12px;
  height: 12px;
  background: #ffd04d;
  box-shadow: 0 0 0 8px rgba(255, 208, 77, 0.22);
}

.radar-city {
  position: absolute;
  color: rgba(31, 57, 87, 0.9);
  font-size: 0.85rem;
}

.city-one { top: 46px; left: 84px; }
.city-two { top: 42px; right: 88px; }
.city-three { bottom: 62px; right: 84px; }
.city-four { top: 118px; left: 50%; transform: translateX(18px); }

.radar-note {
  margin-top: 14px;
}

.side-value {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin: 6px 0 12px;
}

.side-value strong {
  font-size: 2.7rem;
  line-height: 1;
}

.side-value span {
  padding-bottom: 6px;
  color: #9ee5a5;
  font-weight: 600;
}

body.theme-light .side-value span {
  color: #2d8d53;
}

.sun-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 8px 0 12px;
}

.sun-row > div {
  padding: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line-soft);
}

.switch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hourly-strip {
  display: grid;
  grid-template-columns: repeat(12, minmax(78px, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.hour-card {
  padding: 14px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-soft);
  text-align: center;
}

.hour-card .icon {
  margin: 12px auto 8px;
  font-size: 1.8rem;
}

.hour-card em {
  display: block;
  margin-top: 8px;
  font-style: normal;
  color: var(--muted);
  font-size: 0.84rem;
}

.trend-chart {
  width: 100%;
  height: auto;
  margin-top: 16px;
}

.chart-grid line {
  stroke: var(--line);
  stroke-dasharray: 5 7;
}

.chart-line {
  fill: none;
  stroke: var(--blue);
  stroke-width: 4;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.chart-area {
  fill: url(#unused);
  opacity: 1;
}

.trend-chart .chart-area {
  fill: rgba(127, 216, 176, 0.18);
}

.chart-dots circle {
  fill: var(--text);
  stroke: var(--blue);
  stroke-width: 3;
}

.trend-axis {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 10px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

.right-column {
  display: grid;
  gap: 18px;
}

.daily-list,
.life-grid,
.link-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.daily-item {
  display: grid;
  grid-template-columns: 74px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line-soft);
}

.daily-item .daily-icon {
  font-size: 1.6rem;
}

.daily-item .temp-range {
  color: var(--text);
  font-weight: 600;
}

.life-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.life-item {
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line-soft);
}

.life-item p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.92rem;
}

.link-list a {
  min-height: 52px;
  padding: 0 16px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.04);
}

.link-list a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.source-note {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.9rem;
}

@media (max-width: 1320px) {
  .hero-layout {
    grid-template-columns: 1fr 0.9fr;
  }

  .sidebar-stack {
    grid-column: span 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bottom-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1040px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .hero-layout,
  .current-main,
  .metric-grid,
  .sun-row,
  .life-grid {
    grid-template-columns: 1fr;
  }

  .hourly-strip {
    grid-template-columns: repeat(6, minmax(78px, 1fr));
  }

  .sidebar-stack {
    grid-column: auto;
  }
}

@media (max-width: 720px) {
  .topbar,
  .page-shell {
    width: min(100% - 20px, 1400px);
  }

  .topbar-actions,
  .searchbox,
  .city-strip,
  .switch-row {
    flex-wrap: wrap;
  }

  .hero-layout,
  .sidebar-stack {
    grid-template-columns: 1fr;
  }

  .current-head,
  .section-head {
    flex-direction: column;
  }

  .hourly-strip {
    grid-template-columns: repeat(3, minmax(78px, 1fr));
  }

  .trend-axis {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .daily-item {
    grid-template-columns: 56px 1fr;
  }

  .daily-item .temp-range {
    grid-column: span 2;
  }
}