/* 小周工具站 V21.0beta · 主样式
   深浅模式共用一套变量，浅色只覆盖变量值，组件不再各写各的 */

:root {
  --brand: #4aa8ff;
  --bg: #0b1220;
  --bg2: #111a2e;
  --card: rgba(255, 255, 255, .06);
  --card2: rgba(255, 255, 255, .1);
  --line: rgba(255, 255, 255, .12);
  --txt: #e8f1ff;
  --txt2: #9fb4d0;
  --txt3: #6b809c;
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;
  --shadow: 0 8px 30px rgba(0, 0, 0, .35);
  /* 半透明色底（color-mix 的等价物，供老浏览器使用） */
  --tint-b10: rgba(74, 168, 255, .10);
  --tint-b14: rgba(74, 168, 255, .14);
  --tint-b16: rgba(74, 168, 255, .16);
  --tint-b18: rgba(74, 168, 255, .18);
  --tint-b20: rgba(74, 168, 255, .20);
  --tint-b22: rgba(74, 168, 255, .22);
  --tint-b30: rgba(74, 168, 255, .30);
  --tint-b35: rgba(74, 168, 255, .35);
  --tint-e16: rgba(248, 113, 113, .16);
  --tint-e40: rgba(248, 113, 113, .40);
  --tint-bg80: rgba(11, 18, 32, .80);
  --tint-line50: rgba(255, 255, 255, .06);
}

body.light-mode {
  --bg: #f2f6fb;
  --bg2: #ffffff;
  --card: rgba(15, 40, 80, .05);
  --card2: rgba(15, 40, 80, .09);
  --line: rgba(15, 40, 80, .14);
  --txt: #16233a;
  --txt2: #4a5f7d;
  --txt3: #7d8ea6;
  --shadow: 0 6px 24px rgba(20, 50, 90, .1);
  --tint-bg80: rgba(242, 246, 251, .80);
  --tint-line50: rgba(15, 40, 80, .07);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--txt);
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  background-image:
    radial-gradient(900px 500px at 12% -8%, var(--tint-b16), transparent 70%),
    radial-gradient(700px 420px at 100% 0%, var(--tint-b10), transparent 70%);
  background-attachment: fixed;
}

body.no-liquid .glass { backdrop-filter: none !important; }

a { color: var(--brand); text-decoration: none; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  flex: 0 0 220px;
  background: var(--card);
  border-right: 1px solid var(--line);
  padding: 16px 12px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}

.brand .logo { font-size: 22px; }
.brand .bname { font-weight: 600; font-size: 15px; }
.brand .ver {
  font-size: 11px;
  color: var(--brand);
  background: var(--tint-b18);
  padding: 1px 6px;
  border-radius: 8px;
}

.nav-group { margin-bottom: 14px; }

.nav-gt {
  font-size: 11px;
  color: var(--txt3);
  padding: 0 8px 6px;
  letter-spacing: 1px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--txt2);
  font-size: 14px;
  transition: .2s;
}

.nav-item:hover { background: var(--card2); color: var(--txt); }

.nav-item.on {
  background: var(--tint-b20);
  color: var(--txt);
  box-shadow: inset 0 0 0 1px var(--tint-b35);
}

.nav-item .ni { font-size: 15px; width: 20px; text-align: center; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--tint-bg80);
  position: sticky;
  top: 0;
  z-index: 40;
}

.nav-toggle { display: none; }

.search-wrap { flex: 1; position: relative; max-width: 520px; }

.search-wrap input {
  width: 100%;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt);
  font-size: 14px;
  outline: none;
  font-family: inherit;
}

.search-wrap input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--tint-b18);
}

.top-btn {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt2);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
}

.top-btn:hover { color: var(--txt); border-color: var(--brand); }

.page-body { flex: 1; padding: 20px 18px 60px; max-width: 1180px; width: 100%; margin: 0 auto; }

.page-head h2 {
  margin: 0 0 16px;
  font-size: 20px;
  font-weight: 600;
}

/* ---------- 首页 ---------- */
.hero {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  margin-bottom: 16px;
}

.hero-title { font-size: 22px; font-weight: 600; }
.hero-title .ver { font-size: 12px; color: var(--brand); margin-left: 8px; }
.hero-sub { color: var(--txt2); font-size: 13px; margin-top: 4px; }

.weather-box {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 12px;
  background: var(--card2);
  font-size: 14px;
  width: fit-content;
}

.weather-box.big { font-size: 20px; padding: 18px 22px; }
.weather-box .w-icon { font-size: 22px; }
.weather-box .w-time { color: var(--txt3); font-size: 12px; }

.quote-line {
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--card);
  border-left: 3px solid var(--brand);
  color: var(--txt2);
  font-size: 14px;
  margin-bottom: 16px;
  cursor: pointer;
}

.quote-line:hover { color: var(--txt); }

.today-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 16px;
}

.tc-label { font-size: 12px; color: var(--txt3); margin-bottom: 8px; }

.today-body {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--txt);
}

.today-body .ti-icon { font-size: 26px; }
.today-body b { font-size: 16px; display: block; }
.today-body i { font-style: normal; font-size: 12px; color: var(--txt3); }

.chip-sec { margin-bottom: 16px; }
.chip-sec h3 { font-size: 14px; margin: 0 0 8px; font-weight: 600; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- 工具卡 ---------- */
.sec-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 18px 0 10px;
}

.sec-head h3 { margin: 0; font-size: 15px; font-weight: 600; }
.sec-head .more { font-size: 13px; }

.cat-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 14px;
  align-items: center;
  font-size: 12px;
  color: var(--txt3);
}

.cat-btn {
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt2);
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
}

.cat-btn i {
  font-style: normal;
  font-size: 11px;
  color: var(--txt3);
  margin-left: 4px;
}

.cat-btn:hover { color: var(--txt); border-color: var(--brand); }

.cat-btn.on {
  background: var(--tint-b22);
  color: var(--txt);
  border-color: var(--brand);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
  gap: 10px;
}

.tool-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 13px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--txt);
  transition: .2s;
}

.tool-item:hover {
  transform: translateY(-2px);
  border-color: var(--brand);
  background: var(--card2);
  box-shadow: var(--shadow);
}

.ti-icon { font-size: 21px; flex: 0 0 auto; }
.ti-main { min-width: 0; flex: 1; }
.ti-name { display: block; font-size: 14px; font-weight: 500; }
.ti-tag { display: block; font-size: 11px; color: var(--txt3); }

.ti-badge {
  font-size: 10px;
  color: var(--txt3);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 8px;
  flex: 0 0 auto;
}

.ti-fav {
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 14px;
  color: var(--txt3);
  cursor: pointer;
  line-height: 1;
}

.ti-fav:hover { color: var(--warn); }
.ti-fav.on { color: var(--warn); }

.fav-chip, .recent-chip { padding: 7px 12px; font-size: 13px; }
.fav-chip .ti-name, .recent-chip .ti-name { font-weight: 400; }

.empty-box {
  padding: 34px;
  text-align: center;
  color: var(--txt3);
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: 14px;
  font-size: 14px;
}

.empty-box.small { padding: 18px; font-size: 13px; }

/* ---------- 按钮 ---------- */
.btn {
  padding: 9px 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt);
  font-size: 14px;
  cursor: pointer;
  transition: .2s;
  font-family: inherit;
  display: inline-block;
}

.btn:hover { border-color: var(--brand); background: var(--card2); }

.btn.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #08121f;
  font-weight: 500;
}

.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--err); border-color: var(--tint-e40); }
.btn.danger:hover { background: var(--tint-e16); }
.btn.tiny { padding: 5px 11px; font-size: 12px; }
.btn.on { background: var(--tint-b22); border-color: var(--brand); }
.btn-line { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }

.mini-del {
  border: none;
  background: transparent;
  color: var(--txt3);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 0 4px;
}

.mini-del:hover { color: var(--err); }

/* ---------- 番茄钟 ---------- */
.pomo-wrap {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 22px;
}

.pomo-mode { color: var(--txt2); font-size: 13px; letter-spacing: 2px; }
.pomo-time { font-size: 58px; font-weight: 600; font-variant-numeric: tabular-nums; margin: 6px 0 14px; }

.pomo-bar {
  height: 8px;
  border-radius: 6px;
  background: var(--card2);
  overflow: hidden;
  margin-bottom: 18px;
}

.pomo-fill { height: 100%; width: 0; background: var(--brand); transition: width .3s linear; }
.pomo-btns { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.pomo-durs { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 14px; }

.dur-btn {
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt2);
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
}

.dur-btn.on { background: var(--tint-b22); color: var(--txt); border-color: var(--brand); }
.pomo-stat { margin-top: 16px; font-size: 13px; color: var(--txt2); }
.pomo-stat b { color: var(--brand); }

/* ---------- 计算器 ---------- */
.calc-wrap { max-width: 460px; margin: 0 auto; }

.calc-screen {
  background: var(--card2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  text-align: right;
  font-size: 30px;
  font-variant-numeric: tabular-nums;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  word-break: break-all;
}

#calcMemBadge {
  font-size: 12px;
  color: var(--warn);
  border: 1px solid var(--warn);
  border-radius: 6px;
  padding: 0 5px;
  flex: 0 0 auto;
}

.calc-keys {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 14px 0;
}

.ck {
  padding: 14px 0;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt);
  font-size: 16px;
  cursor: pointer;
  font-family: inherit;
}

.ck:hover { border-color: var(--brand); background: var(--card2); }
.ck.num { font-size: 18px; }
.ck.eq { background: var(--brand); border-color: var(--brand); color: #08121f; font-weight: 600; }

.hist-list { margin-top: 8px; }

.hist-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--card);
  margin-bottom: 6px;
  font-size: 13px;
  cursor: pointer;
}

.hist-row:hover { background: var(--card2); }
.hist-row .he { color: var(--txt2); }
.hist-row .hr { color: var(--brand); font-weight: 500; }

/* ---------- 换算 / 密码 / 天气 / 二维码 ---------- */
.conv-wrap, .pwd-wrap, .weather-page, .qr-page, .todo-page, .checkin-page,
.quotes-page, .weekly-page, .about-page, .agree-page {
  max-width: 620px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
}

.conv-cats { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }

.conv-cat {
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt2);
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
}

.conv-cat.on { background: var(--tint-b22); color: var(--txt); border-color: var(--brand); }

.conv-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.conv-row input, .conv-row select { flex: 1; min-width: 110px; }
.conv-eq { color: var(--txt3); }

input[type=text], input[type=number], input[type=time], select, textarea {
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card2);
  color: var(--txt);
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

input:focus, select:focus { border-color: var(--brand); }
.weather-page .city-row, .qr-page .city-row, .todo-page .city-row { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.weather-page .city-row input, .qr-page .city-row input, .todo-page .city-row input { flex: 1; min-width: 160px; }

.pwd-out { display: flex; gap: 8px; }
.pwd-out input { flex: 1; font-family: ui-monospace, Consolas, monospace; letter-spacing: 1px; }

.pwd-strength { margin: 12px 0; font-size: 12px; color: var(--txt2); }
.ps-bar { height: 6px; border-radius: 4px; background: var(--card2); overflow: hidden; margin-bottom: 4px; }
.ps-fill { height: 100%; width: 0; transition: .25s; }
.ps-fill.weak { background: var(--err); }
.ps-fill.mid { background: var(--warn); }
.ps-fill.strong { background: var(--ok); }

.pwd-opts { display: flex; flex-wrap: wrap; gap: 12px; margin: 10px 0; font-size: 13px; color: var(--txt2); }
.pwd-opt { display: flex; align-items: center; gap: 4px; cursor: pointer; }

.qr-box {
  width: 240px;
  margin: 0 auto 12px;
  padding: 12px;
  background: #fff;
  border-radius: 12px;
}

.qr-box svg { width: 100%; height: auto; display: block; }
.qr-text { text-align: center; font-size: 12px; color: var(--txt3); word-break: break-all; }

/* ---------- 待办 / 打卡 / 格言 ---------- */
.todo-list { margin-top: 14px; }

.todo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--card2);
  margin-bottom: 7px;
  font-size: 14px;
}

.todo-row label { display: flex; align-items: center; gap: 9px; cursor: pointer; flex: 1; }
.todo-row.done span { text-decoration: line-through; color: var(--txt3); }

.check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 9px; margin-top: 14px; }

.check-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 13px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--txt2);
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
  text-align: left;
}

.check-item .ck {
  width: 19px;
  height: 19px;
  border-radius: 6px;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex: 0 0 auto;
}

.check-item.on { border-color: var(--brand); color: var(--txt); background: var(--tint-b14); }
.check-item.on .ck { background: var(--brand); color: #08121f; }

.prog-bar { height: 8px; border-radius: 6px; background: var(--card2); overflow: hidden; }
.prog-fill { height: 100%; background: var(--brand); transition: .3s; }
.prog-txt { font-size: 13px; color: var(--txt2); margin-top: 6px; }

.quote-hero {
  padding: 20px;
  border-radius: 14px;
  background: var(--card2);
  font-size: 17px;
  text-align: center;
  line-height: 1.7;
}

.quote-list { margin-top: 10px; }

.quote-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 10px 13px;
  border-radius: 10px;
  background: var(--card2);
  margin-bottom: 7px;
  font-size: 14px;
}

/* ---------- 排行 / 统计 ---------- */
.rank-list { display: flex; flex-direction: column; gap: 7px; }

.rank-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 11px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--txt);
  font-size: 14px;
}

.rank-row:hover { border-color: var(--brand); background: var(--card2); }
.rank-row .rk { width: 22px; color: var(--brand); font-weight: 600; }
.rank-row .ri { font-size: 18px; }
.rank-row .rn { flex: 1; }
.rank-row .rc { color: var(--txt3); font-size: 12px; }

.week-badge { font-size: 12px; color: var(--txt3); margin-bottom: 10px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }

.stat-cell {
  background: var(--card2);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
}

.stat-cell .sv { font-size: 20px; font-weight: 600; color: var(--brand); }
.stat-cell .sl { font-size: 12px; color: var(--txt3); margin-top: 2px; }
.stat-foot { margin-top: 12px; font-size: 12px; color: var(--txt3); text-align: center; }

/* ---------- 设置 ---------- */
.set-group {
  background: var(--card2);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 12px;
}

.set-group h3 { margin: 0 0 10px; font-size: 14px; font-weight: 600; }

.set-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--tint-line50);
}

.set-row:last-child { border-bottom: none; }
.set-row input[type=range] { flex: 1; max-width: 200px; }
.set-row input[type=number], .set-row input[type=time] { width: 110px; }

.switch {
  width: 44px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  position: relative;
  cursor: pointer;
  flex: 0 0 auto;
}

.switch i {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--txt3);
  transition: .2s;
}

.switch.on { background: var(--tint-b30); border-color: var(--brand); }
.switch.on i { left: 22px; background: var(--brand); }

.theme-picks { display: flex; gap: 7px; }

.theme-pick {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}

.theme-pick.on { border-color: var(--txt); }
.clear-grid { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.about-line { font-size: 13px; color: var(--txt2); padding: 4px 0; }

/* ---------- 教程 / 关于 / 协议 ---------- */
.tut-list { display: flex; flex-direction: column; gap: 10px; }

.tut-item {
  background: var(--card2);
  border-radius: 12px;
  padding: 14px 16px;
}

.tut-t { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.tut-d { font-size: 13px; color: var(--txt2); margin-bottom: 9px; }

.about-hero { text-align: center; padding: 10px 0 18px; }
.ah-icon { font-size: 40px; }
.ah-name { font-size: 20px; font-weight: 600; margin-top: 6px; }
.ah-ver { color: var(--brand); font-size: 13px; margin-top: 2px; }
.ah-sub { color: var(--txt3); font-size: 12px; margin-top: 4px; }

.changelog { display: flex; flex-direction: column; gap: 9px; }

.cl-item {
  background: var(--card2);
  border-radius: 12px;
  padding: 12px 14px;
}

.cl-head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.cl-head b { color: var(--brand); font-size: 14px; }
.cl-head span { font-size: 13px; color: var(--txt2); }
.cl-body { font-size: 13px; color: var(--txt2); margin-top: 5px; line-height: 1.7; }

.agree-page h2 { font-size: 17px; margin: 0 0 12px; }
.agree-page p { font-size: 14px; color: var(--txt2); }
.agree-page .sign { text-align: right; color: var(--txt3); }

/* ---------- 工具详情 ---------- */
.detail-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.dt-icon { font-size: 42px; }
.dt-info { flex: 1; min-width: 200px; }
.dt-info h2 { margin: 0 0 6px; font-size: 19px; }

.dt-meta { display: flex; gap: 8px; margin-bottom: 6px; }
.dt-meta .tag, .dt-meta .badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 8px;
  background: var(--card2);
  color: var(--txt2);
}

.dt-url { font-size: 12px; color: var(--txt3); word-break: break-all; }
.dt-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; width: 100%; }

.tip-box {
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: 11px;
  background: var(--card2);
  font-size: 12px;
  color: var(--txt3);
  border-left: 3px solid var(--brand);
}

/* ---------- 弹窗 / 提示 / 引导 ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 10, 20, .72);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}

.modal.show { display: flex; }

.modal-card {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 18px;
  max-width: 560px;
  width: 100%;
  max-height: 84vh;
  overflow-y: auto;
  padding: 22px;
}

.modal-title { margin: 0 0 4px; font-size: 19px; }
.modal-sub { color: var(--txt3); font-size: 13px; margin-bottom: 14px; }
.agree-body p { font-size: 14px; color: var(--txt2); }
.modal-foot { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; }

#toastBox {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.toast {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--bg2);
  border: 1px solid var(--line);
  color: var(--txt);
  font-size: 14px;
  box-shadow: var(--shadow);
  animation: pop .25s ease;
}

.toast.out { opacity: 0; transform: translateY(8px); transition: .3s; }
.toast-success { border-color: var(--ok); }
.toast-warn { border-color: var(--warn); }

@keyframes pop { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

#guideBox {
  position: fixed;
  inset: 0;
  background: rgba(4, 10, 20, .72);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 250;
  padding: 20px;
}

#guideBox.show { display: flex; }

.guide-card {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  max-width: 420px;
  width: 100%;
}

.g-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.g-desc { font-size: 14px; color: var(--txt2); line-height: 1.75; min-height: 60px; }
.g-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.g-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--txt3); margin-right: 5px; }
.g-dot.on { background: var(--brand); }

#backToTop {
  position: fixed;
  right: 26px;
  bottom: 26px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg2);
  color: var(--txt);
  cursor: pointer;
  display: none;
  z-index: 90;
  font-size: 17px;
}

#backToTop.show { display: block; }
#backToTop:hover { border-color: var(--brand); color: var(--brand); }

#particleLayer { position: fixed; inset: 0; pointer-events: none; z-index: 5; }

.pt {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  animation: fade .7s ease forwards;
}

@keyframes fade { from { opacity: .85; transform: scale(1); } to { opacity: 0; transform: scale(.2); } }

/* ================= 响应式：电脑 / 平板 / 手机 =================
   断点约定（与聊天面板 chat.js 保持一致，避免两套尺寸打架）：
     大屏电脑  ≥1440px
     普通电脑  1025–1439px
     平板      641–1024px
     手机      ≤640px
     超窄      ≤480px
     横屏矮屏  max-height:460px
   另外统一用 env(safe-area-inset-*) 处理刘海屏 / 圆角屏的底部安全区。 */

/* ---------- 大屏电脑 ---------- */
@media (min-width: 1440px) {
  .page-body { max-width: 1320px; padding: 24px 28px 72px; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(178px, 1fr)); }
  .sidebar { width: 240px; flex-basis: 240px; }
}

/* ---------- 普通电脑 ---------- */
@media (min-width: 1025px) and (max-width: 1439px) {
  .page-body { max-width: 1060px; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); }
}

/* ---------- 平板（竖屏 / 横屏都算）---------- */
@media (min-width: 641px) and (max-width: 1024px) {
  .sidebar { width: 190px; flex-basis: 190px; padding: 14px 10px; }
  .page-body { padding: 18px 16px 56px; }
  .topbar { padding: 10px 14px; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(158px, 1fr)); }
  .hero-title { font-size: 20px; }
  .pomo-time { font-size: 52px; }
  .calc-wrap { max-width: 420px; }
  .stat-grid { grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); }
}

/* ---------- 手机 + 窄屏：侧栏变抽屉 ---------- */
@media (max-width: 860px) {
  .layout { flex-direction: column; }

  .sidebar {
    position: fixed;
    left: -240px;
    top: 0;
    z-index: 120;
    background: var(--bg2);
    transition: left .25s;
    width: 230px;
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  }

  body.nav-open .sidebar { left: 0; }
  body.nav-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .5);
    z-index: 110;
  }

  .nav-toggle { display: inline-block; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .page-body { padding: 14px 12px 50px; }
  .pomo-time { font-size: 46px; }

  .topbar {
    padding-top: calc(10px + env(safe-area-inset-top, 0px));
    padding-left: max(12px, env(safe-area-inset-left, 0px));
    padding-right: max(12px, env(safe-area-inset-right, 0px));
  }
}

/* ---------- 手机 ---------- */
@media (max-width: 640px) {
  .hero-title { font-size: 19px; }
  .hero-sub { font-size: 12.5px; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .page-body {
    padding: 12px 12px calc(72px + env(safe-area-inset-bottom, 0px));
    padding-left: max(12px, env(safe-area-inset-left, 0px));
    padding-right: max(12px, env(safe-area-inset-right, 0px));
  }
  .topbar { gap: 8px; }
  .top-btn { padding: 6px 9px; font-size: 13px; }
  .search-wrap { max-width: none; }
  /* 输入框 16px：小于 16px 时 iOS Safari 聚焦会自动放大页面 */
  .search-wrap input,
  .page-body input,
  .page-body textarea,
  .page-body select { font-size: 16px; }
  .pomo-time { font-size: 42px; }
  .pomo-btns { gap: 6px; }
  .stat-grid { grid-template-columns: repeat(auto-fit, minmax(104px, 1fr)); gap: 8px; }
  /* 表格类内容允许横向滚动，不撑破页面 */
  .page-body table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* ---------- 超窄屏（小手机）---------- */
@media (max-width: 480px) {
  .hero-title { font-size: 18px; }
  .tool-grid { grid-template-columns: 1fr 1fr; }
  .calc-keys { gap: 6px; }
  .ck { padding: 12px 0; font-size: 15px; }
}

/* ---------- 手机横屏 / 矮屏 ---------- */
@media (max-height: 460px) and (orientation: landscape) {
  .page-body { padding-top: 10px; padding-bottom: calc(60px + env(safe-area-inset-bottom, 0px)); }
  .hero { padding: 10px 12px; }
  .pomo-time { font-size: 34px; margin: 2px 0 8px; }
  .sidebar { padding-top: 8px; }
}

/* 触屏设备：点按不要出现灰色高亮块 */
@media (hover: none) {
  .top-btn:active, .ck:active, .tool-item:active { opacity: .75; }
}

@media print {
  .sidebar, .topbar, #backToTop { display: none; }
}