:root {
  --dora-blue: #0096E1;
  --dora-blue-light: #4DB8F0;
  --dora-red: #E74C3C;
  --dora-yellow: #F5C518;
  --bg: #E8F4FD;
  --bg-page: #FAFBFF;
  --card: #FFFFFF;
  --ink: #1A1A2E;
  --ink-2: #4A4A6A;
  --muted: #7F8C8D;
  --accent: #0096E1;
  --accent-deep: #0077B8;
  --accent-soft: #E8F4FD;
  --border: #D5E8F7;
  --ok: #2ECC71;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(1100px 480px at 12% -12%, #dceefc 0%, rgba(220, 238, 252, 0) 60%),
    radial-gradient(900px 420px at 108% -4%, #cfe6f9 0%, rgba(207, 230, 249, 0) 55%),
    var(--bg-page);
  color: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

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

.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }

/* ---------- 头部 ---------- */
.topbar {
  padding: 22px 0 6px;
}
.topbar a.back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
  transition: color 0.15s;
}
.topbar a.back:hover { color: var(--ink-2); }

.masthead { padding: 26px 0 34px; }
.masthead .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid var(--dora-blue-light);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.masthead h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.masthead .sub {
  margin: 0;
  color: var(--ink-2);
  font-size: 15px;
  max-width: 560px;
}

/* ---------- 卡片墙（首页） ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
  padding-bottom: 60px;
}
.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform 0.16s ease, border-color 0.16s ease;
}
a.card:hover {
  transform: translate(-2px, -2px);
  border-color: var(--dora-blue);
}
.card .icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 25px;
  background: var(--accent-soft);
}
.card h2 { margin: 0; font-size: 19px; font-weight: 650; }
.card p { margin: 0; color: var(--ink-2); font-size: 14px; }
.card .tag {
  align-self: flex-start;
  font-size: 12px;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-radius: 8px;
  padding: 2px 9px;
}
.card.soon { opacity: 0.66; }
.card.soon .icon { background: #e6f2fb; filter: grayscale(0.4); }

/* ---------- 天气应用 ---------- */
.seg {
  display: inline-flex;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
}
.seg button {
  border: none;
  background: transparent;
  color: var(--ink-2);
  font-size: 14px;
  font-family: inherit;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}
.seg button.active {
  background: var(--card);
  color: var(--ink);
  font-weight: 600;
}

.summary {
  margin: 18px 0 6px;
  color: var(--ink-2);
  font-size: 14px;
}
.summary b { color: var(--ink); }

.region {
  margin-bottom: 26px;
}
.region-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.region-head h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  border-left: 6px solid var(--dora-blue);
  padding-left: 10px;
  line-height: 1.3;
}
.region-head .count {
  font-size: 12px;
  color: var(--muted);
}

.city-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px;
}
.city {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.city .name { font-weight: 600; font-size: 15px; }
.city .w {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.35;
}
.city .w .wx { font-size: 13px; color: var(--ink-2); }
.city .w .t { font-size: 13px; color: var(--accent-deep); font-weight: 600; }

.empty {
  color: var(--muted);
  font-size: 14px;
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

/* ---------- 季节分布 ---------- */
.note {
  margin: 6px 0 24px;
  color: var(--muted);
  font-size: 12.5px;
}
.season-sec { margin-bottom: 28px; }
.season-head {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 12px;
}
.season-head .emoji { font-size: 21px; }
.season-head h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  border-left: 6px solid var(--dora-blue);
  padding-left: 10px;
  line-height: 1.3;
}
.season-head .count { font-size: 12px; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
}
.chip .t { font-weight: 500; opacity: 0.85; font-size: 13px; }
.chip.summer { background: #fdeae1; color: #bf4315; border-color: #f6d3c0; }
.chip.autumn { background: #fdf1d7; color: #a8761a; border-color: #f2ddab; }
.chip.spring { background: #e5f3e2; color: #3d8a4d; border-color: #c9e6c4; }
.chip.winter { background: #e3eefb; color: #2a6cb4; border-color: #c8ddf4; }

/* ---------- 状态 ---------- */
.state {
  text-align: center;
  padding: 70px 20px;
  color: var(--muted);
}
.state .spin {
  width: 26px;
  height: 26px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto 14px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.state button.retry {
  margin-top: 14px;
  font-family: inherit;
  font-size: 14px;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  padding: 9px 20px;
  cursor: pointer;
}
.state button.retry:hover { background: var(--accent-deep); }

.footer {
  padding: 30px 0 50px;
  color: var(--muted);
  font-size: 12.5px;
  text-align: center;
}