:root {
  --pink-50: #fff7f9;
  --pink-100: #ffe9f0;
  --pink-200: #ffd3e0;
  --pink-300: #f7b7cc;
  --pink-400: #e88fae;
  --pink-500: #d96f96;
  --pink-600: #c2547d;
  --ink: #4a3340;
  --ink-soft: #8a6b78;
  --ink-faint: #b89aa6;
  --card: #ffffff;
  --line: #f3dce4;
  --shadow: 0 8px 28px rgba(217, 111, 150, 0.14);
  --shadow-sm: 0 4px 14px rgba(217, 111, 150, 0.10);
  --radius: 18px;
  --serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 85% -10%, #ffe4ee 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 30%, #fff0f5 0%, transparent 55%),
    linear-gradient(180deg, #fffafc 0%, #fff4f8 55%, #ffeef4 100%);
  min-height: 100vh;
}

/* ---------- 顶栏 ---------- */
.topbar {
  position: static;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 22px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; flex-direction: column; line-height: 1.15; }
.brand-zh { font-family: var(--serif); font-size: 19px; font-weight: 700; letter-spacing: 2px; color: var(--pink-600); }
.brand-en { font-size: 9px; letter-spacing: 2.4px; color: var(--ink-faint); }
.main-nav { display: flex; gap: 4px; flex-wrap: wrap; justify-content: center; }
.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font-size: 11px;
  font-family: var(--sans);
  padding: 6px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.18s ease;
}
.nav-ico { font-size: 17px; line-height: 1; }
.nav-btn:hover { background: var(--pink-100); }
.nav-btn.active { background: var(--pink-300); color: #fff; box-shadow: var(--shadow-sm); }
.topbar-right { display: flex; gap: 6px; }
.icon-btn {
  border: none;
  background: var(--pink-100);
  width: 38px;
  height: 38px;
  border-radius: 12px;
  font-size: 17px;
  cursor: pointer;
  transition: transform 0.15s ease;
}
.icon-btn:hover { transform: scale(1.08); }

/* ---------- 布局 ---------- */
main { max-width: 1120px; margin: 0 auto; padding: 26px 20px 80px; }
.view { display: none; }
.view.active { display: block; animation: fadein 0.28s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.page-head { margin: 8px 0 18px; }
.page-head h2 { font-family: var(--serif); font-size: 26px; letter-spacing: 1px; color: var(--pink-600); }
.page-head .sub { color: var(--ink-soft); font-size: 13px; margin-top: 4px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.card-title {
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: 1px;
  color: var(--pink-600);
  margin-bottom: 14px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.en-sub { font-size: 10px; color: var(--ink-faint); letter-spacing: 1px; font-family: var(--sans); font-weight: 400; }
.hint { color: var(--ink-faint); font-size: 12px; margin-top: 10px; line-height: 1.6; }
.sub { color: var(--ink-soft); font-size: 13px; }

/* ---------- 按钮 ---------- */
.btn {
  border: none;
  border-radius: 999px;
  padding: 11px 20px;
  font-size: 14px;
  font-family: var(--sans);
  cursor: pointer;
  transition: all 0.16s ease;
  font-weight: 600;
  touch-action: manipulation;
}
.nav-btn, .icon-btn, .chip-btn, .tab-btn, .speak-btn, .quiz-opt, .word-item { touch-action: manipulation; }
.btn.sm { padding: 7px 14px; font-size: 12px; }
.btn.wide { width: 100%; margin-bottom: 10px; }
.btn.primary { background: var(--pink-500); color: #fff; box-shadow: 0 6px 16px rgba(217,111,150,0.35); }
.btn.primary:hover { background: var(--pink-600); transform: translateY(-1px); }
.btn.soft { background: var(--pink-100); color: var(--pink-600); }
.btn.soft:hover { background: var(--pink-200); }
.btn.ghost { background: transparent; color: var(--ink-soft); border: 1px solid var(--line); }
.btn.ghost:hover { background: var(--pink-50); }
.btn.good { background: #f0fbf3; color: #2e9e5b; border: 1px solid #cdeed7; }
.btn.good:hover { background: #ddf5e5; }
.btn.fuzzy { background: #fff7e6; color: #c98a1b; border: 1px solid #f6e3b8; }
.btn.fuzzy:hover { background: #ffefcc; }
.btn.bad { background: #fdeeee; color: #cf4a5c; border: 1px solid #f6cdd3; }
.btn.bad:hover { background: #fbdcdc; }

.chip-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: var(--sans);
}
.chip-btn.active { background: var(--pink-300); color: #fff; border-color: var(--pink-300); }
.chip-btn:hover:not(.active) { background: var(--pink-100); }

/* ---------- 输入 ---------- */
.search-input, .select-input {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 13px;
  font-family: var(--sans);
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.search-input:focus, .select-input:focus { border-color: var(--pink-400); box-shadow: 0 0 0 3px rgba(232,143,174,0.18); }
.search-input.sm { padding: 8px 12px; }
.text-input {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 13px;
  font-family: var(--sans);
  color: var(--ink);
  outline: none;
  min-width: 240px;
  max-width: 320px;
  width: 100%;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.text-input:focus { border-color: var(--pink-400); box-shadow: 0 0 0 3px rgba(232,143,174,0.18); }
.text-input::placeholder { color: var(--ink-faint); }
.search-row { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.search-input { flex: 1; min-width: 220px; }
.search-count { font-size: 12px; color: var(--ink-faint); white-space: nowrap; }

/* ---------- 首页 ---------- */
.hero { text-align: center; padding: 26px 0 22px; }
.hero-sub { color: var(--ink-faint); letter-spacing: 6px; font-size: 12px; }
.hero h1 {
  font-family: var(--serif);
  font-size: 44px;
  letter-spacing: 8px;
  color: var(--pink-600);
  margin: 6px 0 4px;
  text-shadow: 0 2px 12px rgba(217,111,150,0.18);
}
.hero-en { color: var(--ink-soft); font-size: 12px; letter-spacing: 1px; font-style: italic; }
.now-chip {
  display: inline-block;
  margin-top: 12px;
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 12px;
  color: var(--ink-soft);
  box-shadow: var(--shadow-sm);
}

.home-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 18px; margin-bottom: 18px; }
.home-grid.two { grid-template-columns: 1fr 1fr; }
@media (max-width: 860px) { .home-grid, .home-grid.two { grid-template-columns: 1fr; } }
.home-theme-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--ink-soft); font-size: 13px; }
.home-theme-row .select-input { flex: 1; }

.dash-card { display: flex; flex-direction: column; }
.ring-wrap { display: flex; align-items: center; gap: 22px; margin-bottom: 8px; }
.ring { transform: rotate(-90deg); flex-shrink: 0; }
.ring-bg { fill: none; stroke: var(--pink-100); stroke-width: 10; }
.ring-fg {
  fill: none;
  stroke: var(--pink-500);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 326.7;
  stroke-dashoffset: 326.7;
  transition: stroke-dashoffset 0.8s ease;
}
.ring-text { text-align: center; position: relative; margin-left: -128px; }
.ring-text b { display: block; font-size: 30px; color: var(--pink-600); font-family: var(--serif); }
.ring-text span { font-size: 11px; color: var(--ink-faint); }
.share-row { display: flex; align-items: center; gap: 8px; margin: 4px 0 12px; font-size: 13px; color: var(--ink-soft); }
.share-status { color: var(--ink-faint); font-size: 12px; }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat-cell {
  background: var(--pink-50);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px;
  text-align: center;
}
.stat-cell b { display: block; font-size: 22px; color: var(--pink-600); font-family: var(--serif); }
.stat-cell span { font-size: 11px; color: var(--ink-soft); }

.collection-card .coll-line { display: flex; justify-content: space-between; font-size: 13px; padding: 6px 0; border-bottom: 1px dashed var(--line); }
.coll-line b { color: var(--pink-600); }
.tag-wrap { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 12px; }
.tag {
  background: var(--pink-100);
  color: var(--pink-600);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 11px;
}
.bar { height: 8px; background: var(--pink-100); border-radius: 999px; overflow: hidden; margin: 8px 0 12px; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--pink-300), var(--pink-500)); border-radius: 999px; transition: width 0.5s ease; }

.timer-row { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.timer-display {
  font-size: 46px;
  font-family: var(--serif);
  color: var(--pink-600);
  font-variant-numeric: tabular-nums;
  background: var(--pink-50);
  border-radius: 16px;
  padding: 16px 22px;
  min-width: 210px;
  text-align: center;
  border: 1px solid var(--line);
}
.timer-meta { flex: 1; min-width: 230px; display: flex; flex-direction: column; gap: 10px; }
.timer-modes, .timer-presets, .timer-adjust, .timer-controls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.timer-min-label { font-size: 13px; color: var(--ink-soft); margin: 0 4px; }

.routine-card { margin-top: 18px; }
.plan-toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.plan-toolbar label { font-size: 13px; color: var(--ink-soft); }
.custom-cell {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  padding: 6px 8px;
  width: 100%;
  min-width: 120px;
  font-size: 12px;
  color: var(--ink);
  outline: none;
}
.custom-cell:focus { border-color: var(--pink-400); }
.table-scroll { overflow-x: auto; }
.routine-blocks { display: grid; gap: 14px; }
.routine-table { width: 100%; border-collapse: collapse; font-size: 12px; min-width: 640px; }
.routine-table th, .routine-table td { border: 1px solid var(--line); padding: 6px 8px; text-align: center; }
.routine-table th { background: var(--pink-100); color: var(--pink-600); font-weight: 600; }
.routine-table td:first-child { background: var(--pink-50); color: var(--pink-600); font-weight: 600; }
.routine-table tr:nth-child(even) td { background: #fffafc; }

.mini-row { margin-top: 18px; }

/* ---------- 词集库 ---------- */
.tab-row { display: flex; gap: 8px; margin-bottom: 16px; }
.tab-btn {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  font-family: var(--sans);
}
.tab-btn.active { background: var(--pink-500); color: #fff; border-color: var(--pink-500); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.lib-card { padding: 16px; }
.lib-card h3 { font-family: var(--serif); font-size: 17px; color: var(--ink); margin-bottom: 4px; }
.lib-card .lib-sub { font-size: 11px; color: var(--ink-faint); margin-bottom: 8px; }
.lib-card .tag-wrap { margin: 8px 0; }
.lib-card .lib-count { font-size: 12px; color: var(--ink-soft); margin-bottom: 8px; }
.lib-actions { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.lib-search-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  border-radius: 10px;
}
.lib-search-item:hover { background: var(--pink-50); }
.lib-search-item .w { font-weight: 700; color: var(--pink-600); min-width: 120px; }
.lib-search-item .m { color: var(--ink-soft); font-size: 12px; flex: 1; }
.lib-search-item .meta { font-size: 11px; color: var(--ink-faint); white-space: nowrap; }

/* ---------- 沉浸学习 ---------- */
.immerse-layout { display: grid; grid-template-columns: 300px 1fr; gap: 18px; align-items: start; }
.imm-list-toggle { display: none; }
.imm-backdrop { display: none; }
.immerse-side { position: sticky; top: 12px; display: flex; flex-direction: column; max-height: calc(100vh - 24px); }
.side-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.word-list { overflow-y: auto; flex: 1; min-height: 200px; max-height: 55vh; }
@media (max-width: 860px) {
  .immerse-layout { display: block; }
  .imm-list-toggle { display: inline-flex; margin-top: 10px; position: relative; z-index: 36; }
  .imm-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(60, 30, 40, 0.28);
    z-index: 15;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }
  .imm-backdrop.show { opacity: 1; }
  .immerse-side {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    z-index: 40;
    max-height: 66vh;
    border-radius: 18px 18px 0 0;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.16);
    transform: translateY(105%);
    transition: transform 0.25s ease;
  }
  .immerse-side.open { transform: translateY(0); }
  .word-list { max-height: 42vh; }
}
.word-item {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  border: 1px solid transparent;
}
.word-item:hover { background: var(--pink-50); }
.word-item.active { background: var(--pink-100); border-color: var(--pink-300); color: var(--pink-600); font-weight: 700; }
.word-item .wi-status { font-size: 11px; }
.side-foot { display: flex; gap: 8px; margin-top: 10px; }
.side-foot .btn { flex: 1; }

.immerse-main { min-width: 0; }
.imm-progress { height: 6px; background: var(--pink-100); border-radius: 999px; overflow: hidden; }
.imm-progress-bar { height: 100%; background: linear-gradient(90deg, var(--pink-300), var(--pink-500)); width: 0%; transition: width 0.3s ease; }
.imm-position { text-align: right; font-size: 12px; color: var(--ink-faint); margin: 6px 0 10px; }
.word-card { padding: 26px 28px; }
.word-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.word-meta .tag { font-size: 11px; }
.word-big {
  font-size: 44px;
  font-weight: 800;
  color: var(--ink);
  font-family: var(--serif);
  letter-spacing: 1px;
  word-break: break-all;
}
.word-line { display: flex; align-items: center; gap: 12px; }
.word-speak-line { display: flex; align-items: center; gap: 8px; }
.speak-btn {
  border: 1px solid var(--pink-200);
  background: var(--pink-50);
  color: var(--pink-600);
  border-radius: 12px;
  width: 38px;
  height: 38px;
  font-size: 17px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s ease;
}
.speak-btn:hover { background: var(--pink-200); transform: scale(1.08); }
.speak-btn.sm { width: 30px; height: 30px; font-size: 14px; border-radius: 9px; }
body.no-tts .speak-btn, body.no-tts [data-speak] { display: none !important; }
.meaning-box {
  margin: 14px 0;
  padding: 14px 16px;
  background: var(--pink-50);
  border-radius: 14px;
  border: 1px dashed var(--pink-200);
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
  max-height: 200px;
  overflow-y: auto;
}
.note-box { margin: 16px 0; }
.note-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.note-head label { font-weight: 700; color: var(--pink-600); font-size: 14px; }
.note-save { font-size: 11px; color: var(--ink-faint); }
.note-tools { display: flex; gap: 6px; align-items: center; margin-bottom: 8px; flex-wrap: wrap; }
.note-tools .select-input { flex: 1; min-width: 120px; padding: 6px 10px; font-size: 12px; }
.note-tools .btn { padding: 6px 10px; font-size: 12px; }
.note-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
  font-family: var(--sans);
  color: var(--ink);
  resize: vertical;
  outline: none;
  background: #fffdfd;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.note-input:focus { border-color: var(--pink-400); box-shadow: 0 0 0 3px rgba(232,143,174,0.18); }
.note-tip { font-size: 11px; color: var(--ink-faint); margin-top: 6px; }
.word-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.word-actions .btn { flex: 1; min-width: 110px; }
.imm-word-nav { display: none; }

/* ---------- 卡片 ---------- */
.setup-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.check-label { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-soft); cursor: pointer; }
.flip-card {
  perspective: 1200px;
  margin: 22px auto 18px;
  max-width: 520px;
  height: 330px;
  cursor: pointer;
}
.flip-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.55s ease;
  transform-style: preserve-3d;
}
.flip-card.flipped .flip-inner { transform: rotateY(180deg); }
.flip-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(160deg, #fff 0%, #fff4f8 100%);
  text-align: center;
}
.flip-face.back { transform: rotateY(180deg); }
.flip-word { font-size: 40px; font-weight: 800; font-family: var(--serif); color: var(--ink); word-break: break-all; }
.flip-face.front .speak-btn { margin-top: 14px; }
.flip-tip { margin-top: 16px; font-size: 12px; color: var(--ink-faint); }
.flip-meta { font-size: 11px; color: var(--ink-faint); margin-bottom: 8px; }
.flip-meaning { font-size: 17px; color: var(--ink-soft); line-height: 1.9; max-height: 170px; overflow-y: auto; }
.flip-note {
  margin-top: 14px;
  padding: 10px 14px;
  background: var(--pink-100);
  border-radius: 12px;
  font-size: 13px;
  color: var(--pink-600);
  max-height: 120px;
  overflow-y: auto;
}
.flip-progress { text-align: center; font-size: 12px; color: var(--ink-faint); }
.choice-chip {
  font-size: 12px;
  margin-top: 6px;
  min-height: 26px;
  line-height: 1.6;
  color: var(--pink-600);
  background: var(--pink-100);
  border-radius: 999px;
  padding: 4px 12px;
  display: block;
  width: fit-content;
  margin: 6px auto 0;
}
.choice-chip-wrap { text-align: center; }
.card-buttons { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.card-buttons .btn { min-width: 120px; }
.card-done { text-align: center; padding: 30px 10px; }
.card-done p { margin-bottom: 14px; color: var(--ink-soft); }
.resume-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--pink-50);
  border: 1px dashed var(--pink-300);
  border-radius: 12px;
  font-size: 13px;
  color: var(--ink-soft);
  flex-wrap: wrap;
}
.resume-bar span { flex: 1; min-width: 160px; }

/* ---------- 测试 ---------- */
.quiz-body { min-height: 260px; }
.quiz-q { font-size: 26px; font-family: var(--serif); color: var(--ink); text-align: center; margin: 10px 0 18px; word-break: break-all; }
.quiz-q .speak-btn { display: inline-flex; vertical-align: middle; margin-left: 10px; }
.quiz-q-sub { font-size: 13px; color: var(--ink-faint); text-align: center; margin-bottom: 4px; }
.quiz-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 640px) { .quiz-opts { grid-template-columns: 1fr; } }
.quiz-opt {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 16px;
  font-size: 15px;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
  line-height: 1.7;
  font-family: var(--sans);
}
.quiz-opt:hover:not(:disabled) { border-color: var(--pink-400); background: var(--pink-50); }
.quiz-opt.correct { border-color: #7cc99a; background: #eefaf1; color: #1f7a45; }
.quiz-opt.wrong { border-color: #e58a94; background: #fdeeef; color: #b03a48; }
.quiz-opt:disabled { cursor: default; opacity: 0.85; }
.quiz-hud { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; font-size: 13px; color: var(--ink-soft); }
.quiz-score { font-weight: 700; color: var(--pink-600); }
.quiz-result { text-align: center; margin-top: 14px; font-size: 14px; font-weight: 600; }
.quiz-result.ok { color: #2e9e5b; }
.quiz-result.bad { color: #cf4a5c; }
.quiz-nav { display: flex; justify-content: space-between; gap: 10px; margin-top: 18px; }
.quiz-nav .btn { min-width: 130px; }
.quiz-end { text-align: center; padding: 20px 0; }
.quiz-end h3 { font-size: 24px; color: var(--pink-600); font-family: var(--serif); margin-bottom: 10px; }
.wrong-list { margin: 16px auto; max-width: 520px; text-align: left; }
.wrong-row { display: flex; justify-content: space-between; gap: 10px; padding: 8px 10px; border-bottom: 1px dashed var(--line); font-size: 13px; }
.wrong-row .w { color: var(--pink-600); font-weight: 700; min-width: 90px; }
.wrong-row .m { color: var(--ink-soft); flex: 1; }

/* ---------- 收藏 & 妙计 ---------- */
.fav-list, .notes-list { display: flex; flex-direction: column; gap: 10px; }
.fav-row, .note-row {
  display: grid;
  grid-template-columns: 150px 1fr 1fr auto;
  gap: 12px;
  align-items: start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
}
@media (max-width: 760px) { .fav-row, .note-row { grid-template-columns: 1fr; } }
.fav-row .fw, .note-row .nw { font-weight: 700; color: var(--pink-600); font-size: 15px; cursor: pointer; }
.fav-row .fm, .note-row .nm { color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.fav-row textarea, .note-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 11px;
  font-size: 13px;
  font-family: var(--sans);
  color: var(--ink);
  resize: vertical;
  min-height: 52px;
  outline: none;
}
.fav-row textarea:focus, .note-row textarea:focus { border-color: var(--pink-400); box-shadow: 0 0 0 3px rgba(232,143,174,0.15); }
.note-meta { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.note-meta .nm-tag { font-size: 11px; color: var(--ink-faint); }
.status-chip { font-size: 11px; padding: 3px 9px; border-radius: 999px; background: var(--pink-100); color: var(--pink-600); }
.status-chip.m { background: #e5f6ec; color: #2e9e5b; }
.notes-head { margin-bottom: 14px; }
.notes-stat { font-size: 13px; color: var(--ink-soft); margin-bottom: 10px; }
.notes-stat b { color: var(--pink-600); }
.load-more-wrap { text-align: center; margin-top: 14px; }

/* ---------- 设置 ---------- */
.settings-list { padding: 6px 20px; }
.set-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.set-row:last-child { border-bottom: none; }
.set-info { display: flex; flex-direction: column; gap: 3px; }
.set-info b { color: var(--ink); font-size: 14px; }
.set-info span { color: var(--ink-faint); font-size: 12px; }
.set-control { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.set-control .select-input { max-width: 260px; }
.auth-form { display: flex; flex-direction: column; gap: 8px; padding: 4px 0 12px; }
.auth-row .text-input { width: 100%; max-width: 100%; min-width: 0; }
.voice-control { flex-wrap: wrap; justify-content: flex-end; max-width: 500px; }
.voice-control .search-input { flex: 1 1 180px; min-width: 160px; }
.voice-control .select-input { flex: 1 1 220px; min-width: 200px; max-width: none; }
.set-row.danger .set-info b { color: #cf4a5c; }
.switch { position: relative; display: inline-block; width: 46px; height: 26px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute;
  inset: 0;
  background: var(--pink-200);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.slider::before {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s ease;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.switch input:checked + .slider { background: var(--pink-500); }
.switch input:checked + .slider::before { transform: translateX(20px); }
.about-card { margin-top: 18px; }
.about-card ul { padding-left: 20px; color: var(--ink-soft); font-size: 13px; line-height: 2; }

.site-foot { text-align: center; color: var(--ink-faint); font-size: 12px; padding: 18px 0 30px; letter-spacing: 2px; }

/* ---------- 欢迎弹窗 ---------- */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(30, 20, 25, 0.45);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  max-width: 420px;
  width: 100%;
  padding: 24px;
  text-align: center;
}
.modal-box h3 { color: var(--pink-600); font-family: var(--serif); margin-bottom: 12px; }
.modal-box p { color: var(--ink-soft); font-size: 14px; line-height: 1.8; margin-bottom: 10px; }
.modal-box a { color: var(--pink-600); }
.modal-box .btn { margin-top: 12px; }
.pool-box { max-width: 520px; max-height: 80vh; overflow-y: auto; }
.pool-item { display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--line); text-align: left; }
.pool-item:last-child { border-bottom: none; }
.pool-text { flex: 1; color: var(--ink); font-size: 14px; line-height: 1.7; white-space: pre-wrap; }
.pool-actions { display: flex; flex-direction: column; gap: 6px; align-items: stretch; flex-shrink: 0; }
.pool-actions .btn { min-width: 76px; }
.pool-like { flex-shrink: 0; }
.note-display { color: var(--ink-soft); font-size: 14px; line-height: 1.8; margin: 8px 0 12px; white-space: pre-wrap; }

/* ---------- 遮罩记忆 ---------- */
.mask-list { padding: 8px 12px; }
.mask-row { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.mask-row:last-child { border-bottom: none; }
.mask-actions {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  background: var(--card);
  transform: translateX(-105%);
  transition: transform 0.2s ease;
  z-index: 2;
}
.mask-row.open .mask-actions { transform: translateX(0); }
.mask-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 12px;
}
.mask-word, .mask-meaning {
  position: relative;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--pink-50);
  cursor: pointer;
}
.mask-word { justify-content: center; }
.mask-word b { font-size: 17px; }
.mask-num { position: absolute; left: 10px; color: var(--ink-faint); font-size: 12px; }
.mask-word.masked b { opacity: 0; }
.mask-word:not(.masked) .mask-cover { display: none; }
.mask-meaning.masked .mask-text { display: none; }
.mask-meaning:not(.masked) .mask-cover { display: none; }
.mask-cover { display: block; flex: 1; text-align: center; color: var(--ink-faint); font-size: 13px; }
.mask-text { flex: 1; color: var(--ink-soft); font-size: 14px; line-height: 1.6; }
.mask-row.marked { opacity: 0.55; }
@media (max-width: 640px) {
  .mask-body { grid-template-columns: 1fr; }
}

/* ---------- 手机端适配 ---------- */
@media (max-width: 640px) {
  .topbar { padding: 8px 10px; flex-wrap: wrap; }
  .brand-en { display: none; }
  .brand-zh { font-size: 16px; }
  .nav-btn { padding: 5px 8px; font-size: 10px; }
  .nav-label { display: none; }
  .hero h1 { font-size: 32px; letter-spacing: 5px; }
  .card { padding: 14px; }
  .word-big { font-size: 32px; }
  .meaning-box { font-size: 14px; max-height: 160px; }
  .flip-card { height: 290px; }
  .flip-word { font-size: 32px; }
  .timer-display { font-size: 36px; min-width: 160px; }
  .stat-cell b { font-size: 18px; }
  .routine-table { font-size: 11px; }
  .text-input { min-width: 150px; max-width: 220px; }
  .set-row { flex-wrap: wrap; }
  .set-control { flex-wrap: wrap; justify-content: flex-end; }
  .voice-control { max-width: 100%; }
  .card-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .card-buttons .btn { min-width: 0; }
  #cardDont { order: 1; }
  #cardKnow { order: 2; }
  #cardFuzzy { order: 3; }
  #cardFav { order: 4; }
  #cardPrev { order: 5; }
  #cardNext { order: 6; }
  .word-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .word-actions .btn { flex: none; min-width: 0; }
  .imm-word-nav { display: block; }
  #btnDont { order: 1; }
  #btnKnow { order: 2; }
  #btnFuzzy { order: 3; }
  #btnFav { order: 4; }
  #immWordPrev { order: 5; }
  #immWordNext { order: 6; }
}

/* ---------- 浅蓝主题 ---------- */
body[data-theme="blue"] {
  --pink-50: #f2f8fe;
  --pink-100: #e2effb;
  --pink-200: #c6dff5;
  --pink-300: #9cc3ec;
  --pink-400: #6da3da;
  --pink-500: #4a86c4;
  --pink-600: #356ca6;
  --line: #d7e5f3;
  --shadow: 0 8px 28px rgba(74, 134, 196, 0.14);
  --shadow-sm: 0 4px 14px rgba(74, 134, 196, 0.1);
}
body[data-theme="blue"] {
  background:
    radial-gradient(1200px 600px at 85% -10%, #e3f1fd 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 30%, #f2f9ff 0%, transparent 55%),
    linear-gradient(180deg, #f8fcff 0%, #eef6fd 55%, #e6f1fb 100%);
}

/* ---------- 夜间灰主题 ---------- */
body[data-theme="dark"] {
  --pink-50: #232a33;
  --pink-100: #2d3640;
  --pink-200: #3c4754;
  --pink-300: #58708a;
  --pink-400: #7090ac;
  --pink-500: #8aa9c4;
  --pink-600: #a9c6df;
  --ink: #e8edf3;
  --ink-soft: #b7c1ce;
  --ink-faint: #7d8997;
  --card: #232a33;
  --line: #343e49;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.32);
}
body[data-theme="dark"] {
  background:
    radial-gradient(1200px 600px at 85% -10%, #2b3440 0%, transparent 60%),
    linear-gradient(180deg, #1d232b 0%, #171c22 100%);
  color: var(--ink);
}
body[data-theme="dark"] .topbar { background: rgba(35, 42, 51, 0.9); border-bottom-color: var(--line); }
body[data-theme="dark"] .now-chip { background: rgba(35, 42, 51, 0.9); }
body[data-theme="dark"] .search-input,
body[data-theme="dark"] .select-input,
body[data-theme="dark"] .text-input,
body[data-theme="dark"] .chip-btn,
body[data-theme="dark"] .quiz-opt,
body[data-theme="dark"] .tab-btn {
  background: #2a323c;
  color: var(--ink);
  border-color: var(--line);
}
body[data-theme="dark"] .note-input { background: #20262e; color: var(--ink); border-color: var(--line); }
body[data-theme="dark"] .note-input::placeholder { color: var(--ink-faint); }
body[data-theme="dark"] .flip-face { background: linear-gradient(160deg, #2a323c 0%, #1f252d 100%); }
body[data-theme="dark"] .word-item:hover { background: var(--pink-100); }
body[data-theme="dark"] .fav-row,
body[data-theme="dark"] .note-row,
body[data-theme="dark"] .lib-search-item { background: #20262e; border-color: var(--line); }
body[data-theme="dark"] .stat-cell { background: var(--pink-50); border-color: var(--line); }
body[data-theme="dark"] .meaning-box { background: var(--pink-50); border-color: var(--pink-200); }
body[data-theme="dark"] .timer-display { background: var(--pink-50); border-color: var(--line); }
body[data-theme="dark"] .resume-bar { background: var(--pink-50); border-color: var(--pink-300); }
body[data-theme="dark"] .routine-table th { background: var(--pink-100); color: var(--pink-600); }
body[data-theme="dark"] .routine-table td { border-color: var(--line); }
body[data-theme="dark"] .routine-table td:first-child { background: var(--pink-50); }
body[data-theme="dark"] .routine-table tr:nth-child(even) td { background: #1f252d; }
body[data-theme="dark"] .custom-cell { background: #2a323c; color: var(--ink); border-color: var(--line); }
body[data-theme="dark"] .btn.ghost { color: var(--ink-soft); border-color: var(--line); }
body[data-theme="dark"] .btn.good { background: #1f3a2b; color: #7fd6a4; border-color: #2c4d3a; }
body[data-theme="dark"] .btn.fuzzy { background: #3a3120; color: #e0b45f; border-color: #55472a; }
body[data-theme="dark"] .btn.bad { background: #3b2328; color: #e58a96; border-color: #57303a; }
body[data-theme="dark"] .btn.soft { background: var(--pink-100); color: var(--pink-600); }
body[data-theme="dark"] .btn.primary { box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35); }
body[data-theme="dark"] .btn.primary:hover { box-shadow: 0 6px 16px rgba(0, 0, 0, 0.45); }
body[data-theme="dark"] .hero h1 { text-shadow: none; }
body[data-theme="dark"] .set-row { border-bottom-color: var(--line); }
body[data-theme="dark"] .site-foot { color: var(--ink-faint); }
body[data-theme="dark"] .hero-sub,
body[data-theme="dark"] .page-head .sub { color: var(--ink-faint); }
body[data-theme="dark"] .flip-note,
body[data-theme="dark"] .choice-chip,
body[data-theme="dark"] .tag,
body[data-theme="dark"] .status-chip { background: var(--pink-100); color: var(--pink-600); }
body[data-theme="dark"] .status-chip.m { background: #1f3a2b; color: #7fd6a4; }
body[data-theme="dark"] .fav-row textarea,
body[data-theme="dark"] .note-row textarea { background: #20262e; color: var(--ink); border-color: var(--line); }
body[data-theme="dark"] .quiz-opt.correct { border-color: #3fae6b; background: #1c3627; color: #8ce0ab; }
body[data-theme="dark"] .quiz-opt.wrong { border-color: #d9576b; background: #3a2026; color: #f0a0ac; }
body[data-theme="dark"] .quiz-result.ok { color: #8ce0ab; }
body[data-theme="dark"] .quiz-result.bad { color: #f0a0ac; }