:root {
  --bg: #FFF7F5;
  --surface: #FFFFFF;
  --surface-2: #FDF1F0;
  --ink: #3A2E33;
  --ink-2: #8C7C82;
  --ink-3: #B9A9AE;
  --line: #F2E4E4;
  --pink: #F2718C;
  --pink-soft: #FFE7EC;
  --pink-ink: #D9506E;
  --green: #2E9E7B;
  --shadow: 0 2px 12px rgba(190, 120, 135, 0.08);
  --radius: 16px;
  --tab-h: 62px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171315;
    --surface: #221C1F;
    --surface-2: #2B2226;
    --ink: #F3E9EC;
    --ink-2: #A9969D;
    --ink-3: #7A6A70;
    --line: #332930;
    --pink: #F2718C;
    --pink-soft: #3A2730;
    --pink-ink: #FF8FA3;
    --green: #46BE96;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  }
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

input, button, textarea { font-family: inherit; font-size: 16px; color: inherit; }
button { border: 0; background: none; cursor: pointer; padding: 0; }
h1, h2, h3, p { margin: 0; }

/* ---------- 离线提示 ---------- */
.offline-bar {
  position: sticky;
  top: 0;
  z-index: 60;
  padding: 8px 16px;
  padding-top: calc(8px + env(safe-area-inset-top));
  background: var(--pink);
  color: #fff;
  font-size: 12px;
  text-align: center;
}

/* ---------- 登录 ---------- */
.auth {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  padding-top: calc(24px + env(safe-area-inset-top));
  background:
    radial-gradient(120% 60% at 50% 0%, var(--pink-soft) 0%, var(--bg) 62%);
}

.auth-inner { width: 100%; max-width: 360px; }

.brand { text-align: center; margin-bottom: 28px; }
.brand-mark {
  width: 62px; height: 62px; margin: 0 auto 14px;
  border-radius: 20px;
  background: var(--pink);
  color: #fff;
  font-size: 30px; font-weight: 500;
  display: grid; place-items: center;
  box-shadow: 0 8px 22px rgba(242, 113, 140, 0.32);
}
.brand h1 { font-size: 22px; font-weight: 600; letter-spacing: 0.5px; }
.brand p { margin-top: 6px; font-size: 13px; color: var(--ink-2); }

.auth-switch {
  display: flex;
  background: var(--surface-2);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 18px;
}
.auth-switch button {
  flex: 1;
  padding: 9px 0;
  font-size: 14px;
  color: var(--ink-2);
  border-radius: 9px;
  transition: background 0.18s, color 0.18s;
}
.auth-switch button.active {
  background: var(--surface);
  color: var(--ink);
  font-weight: 500;
  box-shadow: var(--shadow);
}

.field { display: block; margin-bottom: 14px; }
.field > span {
  display: block;
  font-size: 12px;
  color: var(--ink-2);
  margin-bottom: 6px;
  padding-left: 2px;
}
.field input {
  width: 100%;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  outline: none;
  -webkit-appearance: none;
}
.field input:focus { border-color: var(--pink); }

.auth-error {
  font-size: 13px;
  color: var(--pink-ink);
  background: var(--pink-soft);
  padding: 9px 12px;
  border-radius: 10px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.auth-foot {
  margin-top: 18px;
  font-size: 12px;
  color: var(--ink-3);
  text-align: center;
  line-height: 1.6;
}

.link-btn {
  display: block;
  margin: 10px auto 0;
  font-size: 12px;
  color: var(--ink-3);
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 6px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: block;
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  text-align: center;
  transition: opacity 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.985); opacity: 0.85; }
.btn.primary { background: var(--pink); color: #fff; box-shadow: 0 6px 18px rgba(242, 113, 140, 0.28); }
.btn.ghost { background: var(--surface-2); color: var(--ink); font-weight: 400; font-size: 14px; }
.btn.ghost.danger { color: var(--pink-ink); }
.btn.full { margin-top: 12px; }
.btn[disabled] { opacity: 0.5; pointer-events: none; }

.row-btns { display: flex; gap: 10px; }
.row-btns .btn { flex: 1; }

/* ---------- 主应用 ---------- */
.app {
  min-height: 100dvh;
  padding-bottom: calc(var(--tab-h) + 24px + env(safe-area-inset-bottom));
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 16px 10px;
  padding-top: calc(14px + env(safe-area-inset-top));
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.month-label { font-size: 16px; font-weight: 600; min-width: 118px; text-align: center; }
.month-nav {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink-2);
  font-size: 18px;
  line-height: 1;
  box-shadow: var(--shadow);
}
.month-nav:active { background: var(--surface-2); }

.main { padding: 4px 16px 0; }
.view { display: none; }
.view.active { display: block; animation: fade 0.22s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ---------- 汇总卡 ---------- */
.summary-card {
  background: linear-gradient(150deg, #FF8FA3 0%, #F2718C 62%, #E85D7C 100%);
  color: #fff;
  border-radius: 20px;
  padding: 20px 20px 16px;
  box-shadow: 0 10px 26px rgba(242, 113, 140, 0.26);
}
.summary-card.compact { padding-bottom: 18px; }
.summary-cap { font-size: 12px; opacity: 0.85; }
.summary-amount {
  font-size: 36px;
  font-weight: 600;
  line-height: 1.15;
  margin-top: 2px;
  letter-spacing: -0.5px;
  font-variant-numeric: tabular-nums;
}
.summary-amount .cur { font-size: 20px; font-weight: 400; margin-right: 3px; opacity: 0.9; }
.summary-sub {
  display: flex;
  gap: 22px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}
.summary-sub > div { display: flex; flex-direction: column; gap: 2px; }
.summary-sub .cap { font-size: 11px; opacity: 0.8; }
.summary-sub b { font-size: 14px; font-weight: 500; font-variant-numeric: tabular-nums; }

/* ---------- AI 输入条 ---------- */
.ai-bar {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
.ai-bar input {
  flex: 1;
  min-width: 0;
  padding: 12px 14px;
  border-radius: 13px;
  border: 1px solid var(--line);
  background: var(--surface);
  outline: none;
  font-size: 16px;
}
.ai-bar input:focus { border-color: var(--pink); }
.ai-bar button {
  flex: 0 0 auto;
  padding: 0 18px;
  border-radius: 13px;
  background: var(--pink);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}
.ai-bar button[disabled] { opacity: 0.55; }

/* ---------- 区块标题 ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 22px 0 10px;
  padding: 0 2px;
}
.section-head h2 { font-size: 14px; font-weight: 600; color: var(--ink); }
.hint { font-size: 12px; color: var(--ink-3); }

/* ---------- 明细列表 ---------- */
.record-list { display: flex; flex-direction: column; gap: 22px; }

.day-group .day-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2px 7px;
  font-size: 12px;
  color: var(--ink-3);
}
.day-group .day-sum { font-variant-numeric: tabular-nums; }

.record {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--surface);
  border-radius: 14px;
  box-shadow: var(--shadow);
  margin-bottom: 8px;
  position: relative;
}
.record .ico {
  width: 40px; height: 40px;
  flex: 0 0 40px;
  border-radius: 12px;
  background: var(--surface-2);
  display: grid;
  place-items: center;
  font-size: 19px;
}
.record .meta { flex: 1; min-width: 0; }
.record .name { font-size: 14px; font-weight: 500; }
.record .sub { font-size: 12px; color: var(--ink-3); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.record .amt {
  font-size: 16px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.record .amt.expense { color: var(--ink); }
.record .amt.income { color: var(--green); }
.record .del-btn {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 0;
  overflow: hidden;
  border-radius: 0 14px 14px 0;
  background: var(--pink);
  color: #fff;
  font-size: 12px;
  transition: width 0.18s;
}

.empty {
  text-align: center;
  padding: 46px 20px;
  color: var(--ink-3);
  font-size: 13px;
  line-height: 1.9;
}
.empty b { display: block; font-size: 15px; color: var(--ink-2); font-weight: 500; margin-bottom: 4px; }

/* ---------- 统计 ---------- */
.cat-list { display: flex; flex-direction: column; gap: 12px; }
.cat-row { background: var(--surface); border-radius: 14px; padding: 12px 14px; box-shadow: var(--shadow); }
.cat-top { display: flex; align-items: center; justify-content: space-between; font-size: 13px; margin-bottom: 8px; }
.cat-top .left { display: flex; align-items: center; gap: 8px; }
.cat-top .nm { font-weight: 500; }
.cat-top .pc { color: var(--ink-3); font-size: 12px; }
.cat-top .val { font-variant-numeric: tabular-nums; color: var(--ink-2); font-size: 13px; }
.bar { height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; }
.bar > i { display: block; height: 100%; border-radius: 3px; background: var(--pink); }

.trend {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 132px;
  padding: 12px 14px 0;
  background: var(--surface);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.trend-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; gap: 6px; }
.trend-col .tb { width: 100%; max-width: 26px; border-radius: 6px 6px 3px 3px; background: var(--pink-soft); position: relative; min-height: 3px; }
.trend-col.cur .tb { background: var(--pink); }
.trend-col .tl { font-size: 10px; color: var(--ink-3); white-space: nowrap; }

/* ---------- 卡片 / 设置 ---------- */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 12px;
}
.card h3 { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.card .desc { font-size: 12px; color: var(--ink-2); line-height: 1.7; }
.card .row-btns { margin-top: 12px; }

.user-row { display: flex; align-items: center; gap: 12px; }
.avatar {
  width: 46px; height: 46px;
  border-radius: 15px;
  background: var(--pink-soft);
  color: var(--pink-ink);
  display: grid; place-items: center;
  font-size: 18px; font-weight: 600;
}
.user-row b { display: block; font-size: 15px; }
.user-row .desc { display: block; margin-top: 3px; }

.version { text-align: center; font-size: 11px; color: var(--ink-3); margin-top: 18px; }
.icp {
  display: block;
  margin-top: 10px;
  text-align: center;
  font-size: 11px;
  color: var(--ink-3);
  text-decoration: none;
}
.icp:active { color: var(--pink); }

/* ---------- 底部导航 ---------- */
.tabbar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 40;
  display: flex;
  height: calc(var(--tab-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--line);
}
.tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--ink-3);
  font-size: 10px;
}
.tab svg { width: 22px; height: 22px; stroke: currentColor; stroke-linecap: round; }
.tab.active { color: var(--pink); }

.fab {
  position: fixed;
  right: 18px;
  bottom: calc(var(--tab-h) + 18px + env(safe-area-inset-bottom));
  z-index: 45;
  width: 54px; height: 54px;
  border-radius: 19px;
  background: var(--pink);
  color: #fff;
  font-size: 30px;
  font-weight: 300;
  line-height: 1;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 22px rgba(242, 113, 140, 0.38);
  transition: transform 0.15s;
}
.fab:active { transform: scale(0.92); }

/* ---------- 记账面板 ---------- */
.sheet-mask {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(40, 26, 32, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s;
  backdrop-filter: blur(2px);
}
.sheet-mask.show { opacity: 1; pointer-events: auto; }

.sheet {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 80;
  background: var(--bg);
  border-radius: 22px 22px 0 0;
  padding: 10px 16px calc(12px + env(safe-area-inset-bottom));
  transform: translateY(102%);
  transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  max-height: 94dvh;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 -8px 30px rgba(90, 50, 65, 0.16);
}
.sheet.open { transform: translateY(0); }

.sheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0 8px;
}
.sheet-cancel, .sheet-save { font-size: 14px; color: var(--ink-2); padding: 4px 2px; }
.sheet-save { color: var(--pink); font-weight: 600; }

.type-switch { display: flex; background: var(--surface-2); border-radius: 10px; padding: 3px; }
.type-btn {
  padding: 6px 18px;
  font-size: 13px;
  border-radius: 8px;
  color: var(--ink-2);
  transition: background 0.16s, color 0.16s;
}
.type-btn.active { background: var(--surface); color: var(--pink-ink); font-weight: 600; box-shadow: var(--shadow); }

.amount-display {
  text-align: center;
  font-size: 38px;
  font-weight: 600;
  padding: 10px 0 14px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}
.amount-display .cur { font-size: 22px; font-weight: 400; margin-right: 4px; color: var(--ink-2); }

.cat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 4px 0 10px;
  max-height: 168px;
  overflow-y: auto;
}
.cat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 2px;
  border-radius: 12px;
  color: var(--ink-2);
  font-size: 11px;
  transition: background 0.15s, color 0.15s;
}
.cat-item .ci { font-size: 20px; line-height: 1.1; }
.cat-item.active { background: var(--pink-soft); color: var(--pink-ink); font-weight: 500; }

.sheet-fields { display: flex; gap: 8px; padding-bottom: 10px; }
.field-input {
  flex: 1;
  min-width: 0;
  padding: 11px 12px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 16px;
  outline: none;
  -webkit-appearance: none;
}
.field-input:focus { border-color: var(--pink); }

.numpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.numpad button {
  padding: 15px 0;
  background: var(--surface);
  border-radius: 12px;
  font-size: 20px;
  font-weight: 500;
  box-shadow: var(--shadow);
  transition: background 0.1s;
}
.numpad button:active { background: var(--surface-2); }
.numpad .del { color: var(--ink-2); font-size: 17px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--tab-h) + 84px + env(safe-area-inset-bottom));
  transform: translate(-50%, 12px);
  z-index: 200;
  background: rgba(48, 34, 40, 0.92);
  color: #fff;
  font-size: 13px;
  padding: 10px 18px;
  border-radius: 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  max-width: 82vw;
  text-align: center;
  line-height: 1.5;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (min-width: 520px) {
  .main, .topbar { max-width: 520px; margin: 0 auto; }
  .sheet { max-width: 520px; margin: 0 auto; border-radius: 22px 22px 0 0; }
}