/* ============================================================
   styles.css —— 界面样式（深色 / 浅色双主题 + A4 打印）
   设计目标：干净、克制、有呼吸感；信息分层清楚，动效只做提示不做干扰。
   ============================================================ */
:root[data-theme="dark"] {
  --bg: #0b0e14;
  --bg-glow: radial-gradient(1100px 520px at 78% -12%, rgba(109, 141, 255, .13), transparent 62%),
             radial-gradient(760px 420px at 8% 6%, rgba(167, 139, 250, .09), transparent 60%);
  --bg2: #10151f;
  --card: #141b26;
  --card2: #1b2431;
  --card-hi: linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, 0) 46%);
  --line: #232e3e;
  --line2: #35435a;
  --fg: #e8edf7;
  --fg2: #9aa7bd;
  --fg3: #67738a;
  --accent: #6d8dff;
  --accent2: #a78bfa;
  --accent-soft: rgba(109, 141, 255, .14);
  --ok: #34d399;
  --ok-soft: rgba(52, 211, 153, .13);
  --warn: #f5a524;
  --warn-soft: rgba(245, 165, 36, .13);
  --err: #f2534a;
  --err-soft: rgba(242, 83, 74, .13);
  --shadow: 0 10px 34px rgba(0, 0, 0, .38);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, .22);
  --ring: rgba(109, 141, 255, .34);
}
:root[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-glow: radial-gradient(1000px 480px at 82% -14%, rgba(47, 107, 255, .10), transparent 62%),
             radial-gradient(700px 380px at 4% 4%, rgba(139, 92, 246, .07), transparent 60%);
  --bg2: #ffffff;
  --card: #ffffff;
  --card2: #f4f7fc;
  --card-hi: linear-gradient(180deg, rgba(255, 255, 255, .9), rgba(255, 255, 255, 0) 46%);
  --line: #e3e8f1;
  --line2: #ccd5e5;
  --fg: #17202f;
  --fg2: #59657a;
  --fg3: #8994a7;
  --accent: #2f6bff;
  --accent2: #7c5cff;
  --accent-soft: rgba(47, 107, 255, .1);
  --ok: #0f9d63;
  --ok-soft: rgba(15, 157, 99, .1);
  --warn: #c87a00;
  --warn-soft: rgba(200, 122, 0, .1);
  --err: #d93b30;
  --err-soft: rgba(217, 59, 48, .1);
  --shadow: 0 10px 30px rgba(20, 35, 70, .1);
  --shadow-sm: 0 2px 8px rgba(20, 35, 70, .07);
  --ring: rgba(47, 107, 255, .26);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  background-image: var(--bg-glow);
  background-attachment: fixed;
  color: var(--fg);
  font: 15px/1.66 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
  display: flex; flex-direction: column; overflow: hidden;
}
a { color: var(--accent); text-decoration: none; }
h1 { font-size: 23px; margin: 0; letter-spacing: .2px; }
h2 { font-size: 16.5px; margin: 0; }
h3 { font-size: 16.5px; margin: 0; }
p { margin: 6px 0; }
code { background: var(--card2); padding: 1px 6px; border-radius: 4px; font-size: 13.5px; }
.mono { font-family: ui-monospace, "SF Mono", Consolas, "Courier New", monospace; }
.muted { color: var(--fg2); }
.small { font-size: 13.5px; }
.pad { padding: 14px; }
.hl { color: var(--accent); }
.warn-c { color: var(--err); }
.req { color: var(--err); margin-left: 3px; }
::selection { background: var(--accent-soft); }

/* 滚动条（不要太抢眼） */
#view::-webkit-scrollbar, #nav::-webkit-scrollbar, .modal-body::-webkit-scrollbar { width: 9px; height: 9px; }
#view::-webkit-scrollbar-thumb, #nav::-webkit-scrollbar-thumb, .modal-body::-webkit-scrollbar-thumb {
  background: var(--line2); border-radius: 20px; border: 2px solid transparent; background-clip: content-box;
}
#view::-webkit-scrollbar-track, #nav::-webkit-scrollbar-track, .modal-body::-webkit-scrollbar-track { background: transparent; }

/* ==================== 布局 ==================== */
.app-shell { display: flex; flex: 1; min-height: 0; overflow: hidden; }
.sidebar {
  width: 226px; flex: 0 0 226px;
  background: var(--bg2);
  background-image: linear-gradient(180deg, rgba(255, 255, 255, .02), transparent 220px);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
}
.brand {
  display: flex; align-items: center; gap: 11px; padding: 18px 16px 14px;
}
.brand .logo {
  width: 38px; height: 38px; border-radius: 12px; flex: 0 0 38px;
  object-fit: cover; display: block;
  box-shadow: 0 0 0 1px var(--line2), var(--shadow-sm);
}
.brand b { display: block; font-size: 15.5px; letter-spacing: .3px; }
.brand small { color: var(--fg3); font-size: 12px; }

#nav { flex: 1; overflow-y: auto; padding: 4px 10px 16px; }
.nav-group { margin-bottom: 12px; }
.nav-title {
  font-size: 11.5px; color: var(--fg3); padding: 6px 10px 5px;
  letter-spacing: 1.6px; font-weight: 600; text-transform: uppercase;
}
.nav-item {
  position: relative; display: flex; align-items: center; gap: 9px;
  padding: 8px 11px; border-radius: 9px; margin-bottom: 2px;
  color: var(--fg2); font-size: 14.5px;
  transition: background .16s ease, color .16s ease, transform .16s ease;
}
.nav-item:hover { background: var(--card2); color: var(--fg); transform: translateX(2px); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-item.active::before {
  content: ''; position: absolute; left: -10px; top: 50%; transform: translateY(-50%);
  width: 3px; height: 18px; border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--accent), var(--accent2));
}
.nav-item .ni { width: 18px; text-align: center; font-size: 15px; }
.nav-badge {
  margin-left: auto; background: var(--card2); color: var(--fg2);
  font-size: 12px; padding: 1px 7px; border-radius: 20px;
}
.nav-badge.ok { background: var(--accent); color: #fff; }

#view { flex: 1; overflow-y: auto; padding: 24px 28px 70px; }
#view > * { animation: fadeUp .3s cubic-bezier(.22, .68, .3, 1) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  #view > * { animation: none; }
  * { transition-duration: .01ms !important; }
}

/* ==================== 通用组件 ==================== */
.btn {
  background: var(--card2); color: var(--fg); border: 1px solid var(--line2);
  padding: 7px 13px; border-radius: 9px; cursor: pointer; font-size: 14px;
  transition: all .16s ease; font-family: inherit; white-space: nowrap;
}
.btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-color: transparent; color: #fff;
  box-shadow: 0 3px 14px rgba(109, 141, 255, .28);
}
.btn.primary:hover:not(:disabled) { filter: brightness(1.07); color: #fff; box-shadow: 0 5px 18px rgba(109, 141, 255, .38); }
.btn.ghost { background: transparent; border-color: var(--line); color: var(--fg2); }
.btn.ghost:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.btn.danger { color: var(--err); border-color: rgba(242, 83, 74, .32); background: transparent; }
.btn.danger:hover { background: var(--err-soft); border-color: var(--err); color: var(--err); }
.btn.tiny { padding: 4px 9px; font-size: 13px; border-radius: 7px; }
.btn.big { padding: 10px 22px; font-size: 16px; border-radius: 10px; }
.btn.block { width: 100%; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }
.btn.icon-btn { padding: 2px 8px; font-size: 16px; line-height: 1.2; letter-spacing: 1px; color: var(--fg3); }
.btn.icon-btn:hover { color: var(--accent); }

.input {
  background: var(--bg); border: 1px solid var(--line); color: var(--fg);
  padding: 8px 11px; border-radius: 9px; font-size: 14.5px; width: 100%;
  font-family: inherit; transition: border-color .16s, box-shadow .16s;
}
.input:hover { border-color: var(--line2); }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--ring); }
textarea.input { resize: vertical; line-height: 1.7; }
textarea#paste { min-height: 260px; }
select.input, .input.sel { cursor: pointer; }
select.input.sel, .input.sel { width: auto; min-width: 118px; flex: 0 0 auto; }
.input.big-input { font-size: 18.5px; padding: 12px 14px; letter-spacing: .3px; }

.card {
  background: var(--card);
  background-image: var(--card-hi);
  border: 1px solid var(--line); border-radius: 16px;
  padding: 18px 20px; margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.card.accent { border-color: var(--line2); box-shadow: var(--shadow); }
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 13px; flex-wrap: wrap;
}
.pill {
  background: var(--accent-soft); color: var(--accent); font-size: 13px;
  padding: 2px 10px; border-radius: 20px; font-weight: 600;
}
.badge-ok { color: var(--ok); font-weight: 600; font-size: 14px; }

.page-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 18px; flex-wrap: wrap;
}
.page-head h1 { position: relative; padding-bottom: 8px; }
.page-head h1::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 30px; height: 3px;
  border-radius: 3px; background: linear-gradient(90deg, var(--accent), var(--accent2));
}
.head-stats { display: flex; gap: 22px; }
.stat { text-align: center; }
.stat b { display: block; font-size: 22px; line-height: 1.2; }
.stat span { font-size: 12.5px; color: var(--fg2); }
.head-actions { display: flex; gap: 8px; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
@media (max-width: 1080px) { .grid2 { grid-template-columns: 1fr; } }

/* 进度条 */
.progress { height: 8px; background: var(--card2); border-radius: 20px; overflow: hidden; margin: 4px 0 14px; }
.progress.thin { height: 5px; margin: 0 0 14px; }
.progress-bar {
  height: 100%; border-radius: 20px; transition: width .45s cubic-bezier(.22, .68, .3, 1);
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

/* 分段按钮 */
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg-btn {
  background: var(--card2); border: 1px solid var(--line); color: var(--fg2);
  padding: 6px 12px; border-radius: 9px; cursor: pointer; font-size: 14px;
  font-family: inherit; transition: all .16s ease;
}
.seg-btn:hover { color: var(--fg); border-color: var(--line2); }
.seg-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-color: transparent; color: #fff;
  box-shadow: 0 2px 10px rgba(109, 141, 255, .28);
}
.seg.bigseg .seg-btn { padding: 10px 20px; font-size: 15.5px; }

/* 表单 */
.form { display: flex; flex-direction: column; gap: 13px; }
.f-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.f-row > label:first-child { width: 84px; flex: 0 0 84px; color: var(--fg2); font-size: 14px; }
.f-row .input { flex: 1; min-width: 140px; }
.f-row input[type="number"].input { max-width: 110px; flex: 0 0 110px; }
.hint { color: var(--fg3); font-size: 13.5px; }
.chk { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--fg2); cursor: pointer; }
.chk input { accent-color: var(--accent); width: 15px; height: 15px; }
.rate-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 13.5px; color: var(--fg2); }
.rate-row input[type="range"] { width: 190px; accent-color: var(--accent); }
.rateval {
  font-family: ui-monospace, Consolas, monospace; font-size: 15px; color: var(--accent);
  min-width: 52px; text-align: center; background: var(--accent-soft);
  border-radius: 7px; padding: 2px 8px;
}

/* 发音自检结果 */
.diagout {
  border: 1px solid var(--line); border-radius: 10px; padding: 11px 13px;
  background: var(--card2); display: flex; flex-direction: column; gap: 7px;
}
.diag-row { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; line-height: 1.55; }
.diag-k { flex: 0 0 168px; color: var(--fg2); }
.diag-v { flex: 1; min-width: 0; word-break: break-word; }

/* 播放键（全站只有一个） */
.playbar { display: inline-flex; vertical-align: middle; }
.playbar .pb {
  background: var(--card2); border: 1px solid var(--line); color: var(--fg2);
  border-radius: 9px; cursor: pointer; padding: 4px 8px; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all .16s ease;
}
.playbar .pb:hover { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.playbar.playing .pb { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.playbar.playing .pb svg { animation: pulseIcon .5s ease 2; }
@keyframes pulseIcon { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.22); } }
.playbar.mini .pb { padding: 3px 7px; }

/* ==================== 难易度标签 ==================== */
.lvlchip {
  display: inline-flex; align-items: center; font-size: 11.5px; font-weight: 600;
  padding: 1px 8px; border-radius: 20px; letter-spacing: .4px; flex: 0 0 auto;
  border: 1px solid transparent;
}
.lvlchip.lv-basic { background: rgba(52, 211, 153, .14); color: var(--ok); }
.lvlchip.lv-mid { background: rgba(109, 141, 255, .15); color: var(--accent); }
.lvlchip.lv-adv { background: rgba(167, 139, 250, .16); color: var(--accent2); }
:root[data-theme="light"] .lvlchip.lv-adv { color: #6d4bd6; }
.lvdot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 1px; vertical-align: middle; }
.lvdot.lv-basic { background: var(--ok); }
.lvdot.lv-mid { background: var(--accent); }
.lvdot.lv-adv { background: var(--accent2); }

/* ==================== 「⋯」弹出菜单 ==================== */
.popmenu {
  position: fixed; z-index: 300; min-width: 152px; padding: 5px;
  background: var(--card); border: 1px solid var(--line2); border-radius: 12px;
  box-shadow: 0 16px 44px rgba(0, 0, 0, .32);
  display: flex; flex-direction: column; gap: 1px;
  animation: popIn .14s ease both;
}
@keyframes popIn { from { opacity: 0; transform: translateY(-4px) scale(.97); } to { opacity: 1; transform: none; } }
.pm-item {
  display: flex; align-items: center; gap: 9px; width: 100%; text-align: left;
  background: transparent; border: none; color: var(--fg); font-family: inherit;
  font-size: 14px; padding: 7px 10px; border-radius: 8px; cursor: pointer;
  transition: background .13s;
}
.pm-item:hover { background: var(--card2); }
.pm-item.danger { color: var(--err); }
.pm-item.danger:hover { background: var(--err-soft); }
.pm-ico { width: 16px; text-align: center; opacity: .85; font-size: 13px; }

/* ==================== 词库 ==================== */
.lib-toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.searchbox { position: relative; flex: 1; min-width: 200px; display: flex; align-items: center; }
.searchbox .input { padding-left: 32px; padding-right: 30px; }
.sb-ico { position: absolute; left: 11px; font-size: 13px; opacity: .6; pointer-events: none; }
.sb-clear {
  position: absolute; right: 7px; background: transparent; border: none; cursor: pointer;
  color: var(--fg3); font-size: 13px; padding: 3px 6px; border-radius: 6px; display: none;
}
.searchbox .input:not(:placeholder-shown) + .sb-clear { display: block; }
.sb-clear:hover { color: var(--err); }
.more-toggle .caret { display: inline-block; transition: transform .2s ease; margin-left: 2px; font-size: 11px; }
.more-toggle.open { color: var(--accent); border-color: var(--accent); }
.more-toggle.open .caret { transform: rotate(180deg); }

.lib-more {
  display: none; flex-direction: column; gap: 10px;
  padding: 12px 14px; margin-bottom: 14px;
  background: var(--card2); border: 1px solid var(--line); border-radius: 12px;
}
.lib-more.open { display: flex; animation: fadeUp .22s ease both; }
.lm-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.lm-lab { flex: 0 0 46px; color: var(--fg3); font-size: 13px; letter-spacing: .5px; }

.bulk-bar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  padding: 8px 0 12px; border-bottom: 1px dashed var(--line); margin-bottom: 12px;
}
.items-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); gap: 11px; }
.item-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 13px;
  padding: 12px 14px; cursor: pointer; transition: all .18s ease; position: relative;
}
.item-card::after {
  content: ''; position: absolute; inset: 0; border-radius: 13px; pointer-events: none;
  box-shadow: 0 0 0 1px transparent; transition: box-shadow .18s ease;
}
.item-card:hover { transform: translateY(-2px); border-color: var(--line2); box-shadow: var(--shadow-sm); }
.item-card:hover::after { box-shadow: 0 0 0 1px var(--accent); }
.item-card .chk { position: absolute; top: 10px; right: 10px; opacity: 0; transition: opacity .15s; z-index: 2; }
.item-card:hover .chk, .item-card .chk:has(input:checked) { opacity: 1; }
.item-card .chk:has(input:checked) { opacity: 1; }
.ic-head { display: flex; align-items: center; gap: 7px; margin-bottom: 3px; padding-right: 22px; }
.ic-text { font-weight: 600; font-size: 16px; word-break: break-word; }
.tagmini {
  font-size: 11.5px; padding: 1px 6px; border-radius: 4px; flex: 0 0 auto;
  background: var(--accent-soft); color: var(--accent);
}
.tagmini.sentence { background: rgba(167, 139, 250, .16); color: var(--accent2); }
.ic-ph { color: var(--fg2); font-size: 15.5px; font-family: ui-monospace, Consolas, monospace; }
.ic-zh { color: var(--fg2); font-size: 14px; margin: 3px 0; }
.ic-tags { display: flex; gap: 4px; flex-wrap: wrap; margin: 5px 0; }
.tag { font-size: 12px; background: var(--card); border: 1px solid var(--line); color: var(--fg2); padding: 0 6px; border-radius: 4px; }
.tag.warn { background: var(--err-soft); color: var(--err); border-color: transparent; }
.tag.need { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.ic-foot { display: flex; align-items: center; gap: 7px; margin-top: 9px; flex-wrap: wrap; }
.mastery { flex: 1; height: 4px; background: var(--card2); border-radius: 4px; overflow: hidden; min-width: 40px; }
.mastery i { display: block; height: 100%; background: linear-gradient(90deg, var(--ok), var(--accent)); transition: width .4s ease; }
.pager { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding-top: 18px; color: var(--fg2); font-size: 14px; }
.pager-sep { flex: 1 1 16px; }
.pager-right { display: flex; align-items: center; gap: 6px; }
.pager .seg { background: var(--card2); }
.row-item {
  display: flex; align-items: center; gap: 9px; padding: 7px 10px; border-radius: 9px;
  border: 1px solid transparent; font-size: 14.5px; transition: background .15s;
}
.row-item:hover { background: var(--card2); }
.row-item.done { opacity: .5; }
.ri-text { font-weight: 600; }
.ri-zh { color: var(--fg2); font-size: 13.5px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.okmark { color: var(--ok); font-weight: 700; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 12px 0; }
.col-title { font-size: 14px; margin-bottom: 7px; color: var(--fg2); }
.action-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tab { background: transparent; border: none; color: var(--fg2); padding: 5px 11px; border-radius: 7px; cursor: pointer; font-size: 14px; font-family: inherit; }
.tab.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.tabpane { display: none; }
.tabpane.active { display: block; }

/* 空状态 */
.empty-hint { text-align: center; padding: 26px 12px; grid-column: 1 / -1; }
.empty-hint .eh-ico { font-size: 34px; opacity: .6; margin-bottom: 6px; }
.empty-hint p { color: var(--fg2); }

/* 卡片上方的作用范围选择条 */
.scope-bar {
  padding: 10px 14px; margin-bottom: 16px;
  background: var(--card); border: 1px solid var(--line); border-radius: 13px;
}
.scope-bar-head { display: none; align-items: center; justify-content: space-between; gap: 10px; }
.scope-bar-body { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

/* 单词卡：已掌握 / 错题待清 统计条 */
.card-stats {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin: -6px 0 16px;
}
.cstat {
  display: inline-flex; align-items: baseline; gap: 7px; cursor: pointer;
  padding: 7px 15px; border-radius: 12px; font: inherit;
  background: var(--card); border: 1px solid var(--line); color: var(--fg);
  transition: all .16s ease;
}
.cstat:hover { border-color: var(--accent); transform: translateY(-1px); }
.cstat b { font-size: 19px; font-weight: 750; letter-spacing: -.4px; color: var(--ok); }
.cstat span { font-size: 13px; color: var(--fg2); }
.cstat.warn b { color: var(--err); }
.cstat.warn:hover { border-color: var(--err); }

/* 统计明细弹窗里的行 */
.stat-tip { margin: 0 0 10px; }
.stat-list { display: flex; flex-direction: column; gap: 7px; }
.stat-row {
  display: flex; align-items: center; gap: 9px; cursor: pointer;
  padding: 8px 11px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--card); transition: all .15s ease;
}
.stat-row:hover { border-color: var(--accent); background: var(--card-hi); }
.sr-text { font-weight: 650; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sr-m { display: inline-flex; align-items: center; gap: 6px; flex: 0 0 auto; }
.sr-m em { font-style: normal; font-size: 12px; color: var(--fg2); min-width: 30px; text-align: right; }
.sr-m .mastery { width: 54px; flex: 0 0 auto; }
.stat-row .btn { flex: 0 0 auto; }
.stchip {
  font-size: 11.5px; font-weight: 600; padding: 1px 8px; border-radius: 20px;
  background: var(--card2); color: var(--fg2); border: 1px solid var(--line);
}
.stchip.good { background: rgba(52, 211, 153, .14); color: var(--ok); border-color: transparent; }

/* 句子详情：逐词释义 */
.gloss-list { display: flex; flex-wrap: wrap; gap: 6px 8px; margin-top: 6px; }
.gloss {
  display: inline-flex; align-items: baseline; gap: 5px;
  padding: 4px 10px; border-radius: 9px;
  background: var(--card-hi); border: 1px solid var(--line);
}
.gloss b { font-size: 14px; }
.gloss i { font-style: normal; font-size: 12px; color: var(--fg2); }
.gloss em { font-style: normal; font-size: 13px; color: var(--accent); }
.gloss em.none { color: var(--fg2); opacity: .6; }
/* 「→ 原形」：说明这个释义是从变形还原查出来的，不是这个字本身的义项 */
.gloss s { text-decoration: none; font-size: 11px; color: var(--warn-c, var(--fg2)); opacity: .85; }
.gloss u { text-decoration: none; font-size: 11.5px; color: var(--fg2); opacity: .8; }

/* ==================== 导入 ==================== */
.drop {
  border: 1.6px dashed var(--line2); border-radius: 13px; padding: 24px;
  text-align: center; cursor: pointer; transition: all .18s ease; margin-top: 12px; color: var(--fg2);
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.drop-inner { font-size: 15.5px; }
.codehint {
  background: var(--bg); border: 1px solid var(--line); border-radius: 9px;
  padding: 10px 12px; font-family: ui-monospace, Consolas, monospace; font-size: 13px;
  color: var(--fg2); white-space: pre; overflow-x: auto; margin: 8px 0;
}
.import-opts { display: flex; gap: 16px; flex-wrap: wrap; margin: 10px 0; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 11px; }
.ptable { width: 100%; border-collapse: collapse; font-size: 14px; }
.ptable th, .ptable td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; }
.ptable th { background: var(--card2); color: var(--fg2); font-weight: 600; font-size: 13.5px; }
.ptable tr:last-child td { border-bottom: none; }
.ptable tbody tr:hover { background: var(--card2); }
.ptable.small { font-size: 13.5px; }

/* ==================== 详情 / 解说 ==================== */
.detail .d-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.detail .d-text { font-size: 20.5px; }
.d-ph { color: var(--fg2); font-family: ui-monospace, Consolas, monospace; font-size: 16.5px; margin-top: 4px; }
.d-zh { font-size: 16.5px; margin: 6px 0 12px; }
.d-block { margin-top: 10px; }
.d-block b { color: var(--fg2); font-size: 13.5px; }
.explain-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 8px; }
.explain-table th {
  text-align: left; width: 78px; color: var(--fg2); font-weight: 500;
  padding: 5px 8px 5px 0; vertical-align: top; white-space: nowrap;
}
.explain-table td { padding: 5px 0; vertical-align: top; line-height: 1.7; }
.explain-table.small { font-size: 13.5px; }
.explain-table.small th { width: 62px; font-size: 13px; }
.jx { display: inline-block; margin-right: 10px; }
.liaison-box { background: var(--card2); border-radius: 11px; padding: 10px 12px; margin: 8px 0; }
.lb-title { font-size: 13px; color: var(--fg2); margin-bottom: 4px; }
.lb-body { font-size: 16.5px; line-height: 2.1; }
.lb-body.small { font-size: 14.5px; line-height: 2; }
.lb-legend { font-size: 12.5px; color: var(--fg3); margin-top: 6px; }
.lx-w { font-weight: 500; }
.lx-j { color: var(--accent); font-size: .72em; margin: 0 3px 0 1px; font-weight: 700; }
.lx-j.lx-unreleased { color: var(--warn); }
.lx-j.lx-glide { color: var(--accent2); }
.lx-j.lx-pause { color: var(--fg3); }
.lx-j.lx-linkR { color: var(--ok); }

/* ==================== 单词卡 ==================== */
.flip-card { perspective: 1600px; max-width: 720px; margin: 0 auto 18px; }
.fc-inner { position: relative; }
.fc-front, .fc-back {
  background: var(--card);
  background-image: var(--card-hi);
  border: 1px solid var(--line2); border-radius: 20px;
  padding: 34px 30px; min-height: 264px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
}
.fc-front { cursor: pointer; transition: transform .22s ease, box-shadow .22s ease; }
.fc-front:hover { transform: translateY(-2px); box-shadow: 0 16px 44px rgba(0, 0, 0, .3); }
.fc-back { display: none; text-align: left; align-items: stretch; }
.flip-card.back .fc-front { display: none; }
.flip-card.back .fc-back { display: flex; }
.fc-badges { display: flex; gap: 6px; align-items: center; justify-content: center; margin-bottom: 8px; }
.fc-text { font-size: 32.5px; font-weight: 600; margin: 12px 0; line-height: 1.4; }
.fc-text.small { font-size: 17.5px; font-weight: 500; margin: 6px 0 10px; text-align: center; }
.fc-ph { color: var(--fg2); font-family: ui-monospace, Consolas, monospace; font-size: 18.5px; }
.fc-zh { font-size: 18.5px; margin: 6px 0 10px; text-align: center; }
.fc-play { margin: 12px 0 6px; }
.fc-hint { margin-top: 14px; }

/* 电脑端：左右箭头 + 卡片居中；窄屏：箭头隐藏，底部出现 prev/next */
.card-arrows { display: flex; align-items: center; gap: 12px; max-width: 960px; margin: 0 auto 18px; }
.card-arrows .flip-card { flex: 1; min-width: 0; }
.arrow { flex: none; width: 44px; height: 44px; border-radius: 50%; padding: 0; font-size: 18px; display: flex; align-items: center; justify-content: center; }
.card-nav { display: none; gap: 10px; justify-content: center; margin-bottom: 10px; flex-wrap: wrap; }
.card-nav-actions { display: flex; }
.card-nav-mobile { display: none; }

/* 窄屏：回到原布局，左右箭头隐藏，底部出现「上一个 / 下一个」 */
@media (max-width: 820px) {
  .card-arrows { display: block; }
  .card-arrows .arrow { display: none; }
  .card-nav-mobile { display: flex; }
}

/* ==================== 会话 / 练习 ==================== */
.session-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; margin-bottom: 10px; flex-wrap: wrap;
}
.sh-left, .sh-right { display: flex; align-items: center; gap: 12px; }
.sh-title { font-weight: 600; font-size: 16.5px; }
.sh-prog, .sh-score { color: var(--fg2); font-size: 14px; }
.sh-timer {
  background: var(--err-soft); color: var(--err); padding: 2px 10px; border-radius: 20px;
  font-family: ui-monospace, Consolas, monospace; font-weight: 600;
}
.q-card {
  background: var(--card);
  background-image: var(--card-hi);
  border: 1px solid var(--line); border-radius: 18px;
  padding: 28px 30px; max-width: 840px; margin: 0 auto;
  box-shadow: var(--shadow-sm);
}
.q-title {
  font-size: 14px; color: var(--fg2); margin-bottom: 16px;
  display: flex; align-items: center; justify-content: space-between;
}
.q-kind { font-size: 12px; background: var(--card2); padding: 1px 8px; border-radius: 10px; }
.q-prompt.big { font-size: 28.5px; font-weight: 600; text-align: center; margin: 10px 0; line-height: 1.5; }
.q-prompt { font-size: 16.5px; color: var(--fg2); text-align: center; margin: 6px 0; }
.q-sub { text-align: center; color: var(--fg3); font-size: 15.5px; font-family: ui-monospace, Consolas, monospace; }
.q-hint { text-align: center; color: var(--warn); font-size: 14px; margin: 6px 0; }
.q-play { display: flex; gap: 10px; justify-content: center; align-items: center; margin: 14px 0; }
.q-body { margin-top: 8px; }
.options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
@media (max-width: 700px) { .options { grid-template-columns: 1fr; } }
.opt {
  background: var(--card2); border: 1.5px solid var(--line); color: var(--fg);
  padding: 14px 16px; border-radius: 12px; cursor: pointer; font-size: 16.5px;
  text-align: left; font-family: inherit; transition: all .15s ease; line-height: 1.5;
}
.opt:hover:not(:disabled) { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); }
.opt.right { border-color: var(--ok); background: var(--ok-soft); }
.opt.wrong { border-color: var(--err); background: var(--err-soft); }
.opt:disabled { cursor: default; }
#q-input { margin-top: 14px; text-align: center; }
.order-answer, .order-bank {
  display: flex; gap: 8px; flex-wrap: wrap; min-height: 46px; padding: 10px;
  border: 1.5px dashed var(--line2); border-radius: 12px; margin: 12px 0;
}
.order-bank { border-style: solid; border-color: var(--line); background: var(--card2); }
.chip {
  background: var(--card); border: 1px solid var(--line2); color: var(--fg);
  padding: 6px 13px; border-radius: 9px; cursor: pointer; font-size: 15.5px;
  font-family: inherit; transition: all .13s ease;
}
.chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.chip.in-ans { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.cloze-line { font-size: 18.5px; line-height: 2.4; text-align: center; margin: 16px 0; }
.cl-w { margin: 0 3px; }
.cl-input {
  background: var(--bg); border: none; border-bottom: 2px solid var(--line2);
  color: var(--accent); width: 118px; text-align: center; font-size: 17.5px;
  padding: 2px 4px; font-family: inherit; border-radius: 0;
}
.cl-input:focus { outline: none; border-bottom-color: var(--accent); }
.cl-input.right { color: var(--ok); border-bottom-color: var(--ok); }
.cl-input.wrong { color: var(--err); border-bottom-color: var(--err); }

.feedback {
  max-width: 840px; margin: 14px auto 0; border-radius: 16px; padding: 18px 20px;
  border: 1px solid var(--line); background: var(--card);
  animation: fadeUp .25s ease both;
}
.feedback.ok { border-color: rgba(52, 211, 153, .4); background: var(--ok-soft); }
.feedback.bad { border-color: rgba(242, 83, 74, .4); background: var(--err-soft); }
.fb-head { font-weight: 700; margin-bottom: 8px; }
.fb-answer { font-size: 17.5px; margin-bottom: 6px; }
.fb-list { margin: 6px 0; font-size: 14.5px; }
.fb-list li { margin: 2px 0; }
.near { color: var(--warn); margin-left: 8px; }
.fb-liaison { background: rgba(0, 0, 0, .12); border-radius: 10px; padding: 8px 11px; margin: 8px 0; }
.fb-play { margin: 8px 0; }
.fb-foot { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }

/* 成绩单 */
.report-top { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
.score-ring {
  width: 118px; height: 118px; border-radius: 50%; flex: 0 0 118px;
  background: conic-gradient(var(--accent) calc(var(--p) * 1%), var(--card2) 0);
  display: grid; place-items: center; position: relative;
}
.score-ring::after {
  content: ''; position: absolute; inset: 9px; border-radius: 50%; background: var(--card);
}
.score-ring span { position: relative; font-size: 32.5px; font-weight: 700; }
.score-ring i { font-size: 14px; font-weight: 400; color: var(--fg2); font-style: normal; }
.report-nums { display: flex; gap: 26px; flex-wrap: wrap; }
.verdict { font-size: 16.5px; margin: 16px 0; }

/* ==================== 情景模拟 ==================== */
.scene-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 12px; }
.scene-pick {
  background: var(--card2); border: 1px solid var(--line); border-radius: 13px;
  padding: 14px; cursor: pointer; text-align: left; color: var(--fg);
  font-family: inherit; transition: all .18s ease; display: flex; flex-direction: column; gap: 5px;
}
.scene-pick:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.sp-icon { font-size: 28.5px; }
.sp-name { font-weight: 600; font-size: 16px; }
.sp-set { font-size: 13.5px; color: var(--fg2); line-height: 1.5; }
.scene-task {
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
  margin-bottom: 11px; background: var(--card2);
}
.scene-task.ok { border-color: rgba(52, 211, 153, .45); }
.scene-task.bad { border-color: rgba(242, 83, 74, .45); }
.st-head { display: flex; gap: 9px; align-items: baseline; font-size: 15.5px; margin-bottom: 5px; }
.st-head b { color: var(--accent); flex: 0 0 auto; }
.st-need { font-size: 13.5px; color: var(--fg2); margin-bottom: 7px; display: flex; gap: 5px; align-items: center; flex-wrap: wrap; }
.st-input { margin-bottom: 7px; }
.st-fb { font-size: 14px; margin-bottom: 6px; }
.st-fb.ok { color: var(--ok); }
.st-fb.bad { color: var(--err); }
.st-foot { display: flex; gap: 7px; }
.frame { padding: 9px 0; border-bottom: 1px dashed var(--line); }
.frame:last-child { border-bottom: none; }
.fr-en { font-size: 16.5px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.fr-zh { color: var(--fg2); font-size: 14px; }
.wordlist { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
.wl-item { background: var(--card2); border-radius: 10px; padding: 8px 10px; font-size: 14.5px; }

/* ==================== 快速入口 ==================== */
.quick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.quick {
  background: var(--card2); border: 1px solid var(--line); border-radius: 11px;
  padding: 14px; text-align: center; color: var(--fg); font-size: 14.5px;
  transition: all .18s ease;
}
.quick:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.typegrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); gap: 7px; }
.typechk { background: var(--card2); border: 1px solid var(--line); border-radius: 9px; padding: 7px 10px; }
.optline { display: flex; gap: 16px; flex-wrap: wrap; }
.prose h2 { margin: 22px 0 8px; font-size: 16.5px; }
.prose p, .prose li { font-size: 14.5px; color: var(--fg2); line-height: 1.85; }
.prose ul { padding-left: 20px; margin: 6px 0; }

/* ==================== 模态框 ==================== */
.modal-mask {
  position: fixed; inset: 0; background: rgba(4, 8, 16, .58); z-index: 100;
  display: grid; place-items: center; padding: 24px;
  backdrop-filter: blur(3px);
  animation: fadeIn .16s ease both;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--card); border: 1px solid var(--line2); border-radius: 18px;
  width: min(760px, 100%); max-height: 88vh; display: flex; flex-direction: column;
  box-shadow: 0 26px 70px rgba(0, 0, 0, .45);
  animation: modalIn .2s cubic-bezier(.22, .68, .3, 1) both;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(10px) scale(.98); } to { opacity: 1; transform: none; } }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 15px 18px; border-bottom: 1px solid var(--line);
}
.modal-body { padding: 18px; overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; }
.prev-title { font-size: 13.5px; color: var(--fg2); margin-bottom: 4px; }

/* ==================== 进站激励弹窗 ==================== */
.inspire-mask {
  position: fixed; inset: 0; z-index: 180;
  display: grid; place-items: center; padding: 22px;
  background: radial-gradient(900px 520px at 50% 42%, rgba(8, 12, 22, .60), rgba(4, 7, 14, .87));
  backdrop-filter: blur(7px) saturate(125%);
  animation: inspMask .34s ease both;
  cursor: pointer;
}
:root[data-theme="light"] .inspire-mask {
  background: radial-gradient(900px 520px at 50% 42%, rgba(255, 255, 255, .62), rgba(226, 233, 247, .88));
}
@keyframes inspMask { from { opacity: 0; } to { opacity: 1; } }
.inspire-mask.closing { animation: inspMaskOut .26s ease both; }
@keyframes inspMaskOut { to { opacity: 0; } }

.inspire {
  position: relative; width: min(560px, 100%);
  padding: 38px 38px 28px; border-radius: 24px; text-align: center;
  cursor: default; overflow: hidden; isolation: isolate;
  background: linear-gradient(var(--card), var(--card)) padding-box,
              linear-gradient(140deg, rgba(109, 141, 255, .8), rgba(167, 139, 250, .55) 42%, rgba(109, 141, 255, .1) 80%) border-box;
  border: 1.5px solid transparent;
  box-shadow: 0 34px 90px rgba(0, 0, 0, .5);
  animation: inspIn .62s cubic-bezier(.16, 1.02, .28, 1) both;
}
:root[data-theme="light"] .inspire {
  box-shadow: 0 30px 80px rgba(20, 35, 70, .22);
}
@keyframes inspIn {
  0% { opacity: 0; transform: translateY(24px) scale(.9); }
  60% { opacity: 1; }
  100% { opacity: 1; transform: none; }
}
.inspire-mask.closing .inspire { animation: inspOut .24s cubic-bezier(.4, 0, 1, 1) both; }
@keyframes inspOut { to { opacity: 0; transform: translateY(10px) scale(.96); } }

/* 缓慢流动的极光 */
.inspire::before {
  content: ''; position: absolute; inset: -40% -20%; z-index: -2;
  background:
    radial-gradient(46% 42% at 22% 24%, rgba(109, 141, 255, .34), transparent 68%),
    radial-gradient(42% 40% at 78% 30%, rgba(167, 139, 250, .30), transparent 66%),
    radial-gradient(50% 44% at 50% 92%, rgba(56, 214, 199, .15), transparent 70%);
  filter: blur(15px);
  animation: inspAurora 15s ease-in-out infinite alternate;
}
@keyframes inspAurora {
  0% { transform: translate3d(-4%, -3%, 0) scale(1); }
  50% { transform: translate3d(3%, 2%, 0) scale(1.07); }
  100% { transform: translate3d(-2%, 3%, 0) scale(1.03); }
}

/* 向上漂浮的小光点 */
.inspire-spark {
  position: absolute; z-index: -1; border-radius: 50%; opacity: 0;
  background: #fff; box-shadow: 0 0 12px 3px rgba(140, 170, 255, .75);
  animation-name: inspSpark; animation-timing-function: linear; animation-iteration-count: infinite;
}
:root[data-theme="light"] .inspire-spark { background: var(--accent); box-shadow: 0 0 10px 2px rgba(47, 107, 255, .45); }
@keyframes inspSpark {
  0% { opacity: 0; transform: translateY(12px) scale(.6); }
  22% { opacity: .85; }
  100% { opacity: 0; transform: translateY(-78px) scale(1.1); }
}

/* 引号 */
.inspire-quote {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 74px; line-height: .68; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: inspFloat 4.6s ease-in-out infinite;
}
@keyframes inspFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* 中文：逐字浮现 */
.inspire-zh {
  margin: 12px 0 18px;
  font-family: 'KaiTi', 'STKaiti', 'Songti SC', 'SimSun', Georgia, serif;
  font-size: clamp(21px, 4.4vw, 27px); line-height: 1.62; letter-spacing: .06em;
  color: var(--fg); text-shadow: 0 2px 24px rgba(109, 141, 255, .22);
}
.inspire-zh i {
  display: inline-block; font-style: normal;
  opacity: 0; transform: translateY(12px) rotate(2deg);
  animation: inspChar .58s cubic-bezier(.2, .9, .3, 1) both;
}
@keyframes inspChar { to { opacity: 1; transform: none; } }

/* 渐变分隔线 */
.inspire-rule {
  height: 1px; width: 0; margin: 0 auto 16px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent2), transparent);
  animation: inspRule .9s .5s cubic-bezier(.2, .8, .2, 1) both;
}
@keyframes inspRule { to { width: 78%; } }

/* 英文 */
.inspire-en {
  font-family: Georgia, 'Times New Roman', 'Songti SC', serif;
  font-style: italic;
  font-size: clamp(13.5px, 2.4vw, 15.5px); line-height: 1.84;
  color: var(--fg2); letter-spacing: .012em;
  opacity: 0; animation: inspFade .8s .62s ease both;
}
@keyframes inspFade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* 出处 */
.inspire-from {
  margin-top: 12px; font-size: 12.5px; color: var(--fg3); letter-spacing: .08em;
  opacity: 0; animation: inspFade .8s .92s ease both;
}

/* 按钮 */
.inspire-ok {
  position: relative; overflow: hidden;
  margin-top: 24px; padding: 12px 34px; border: 0; border-radius: 999px;
  font-size: 15px; font-weight: 600; color: #fff; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 26px rgba(109, 141, 255, .35);
  transition: transform .18s cubic-bezier(.2, .8, .2, 1), box-shadow .18s;
  opacity: 0; animation: inspFade .7s 1.05s ease both;
}
.inspire-ok:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 16px 34px rgba(109, 141, 255, .48); }
.inspire-ok:active { transform: translateY(0) scale(.99); }
.inspire-ok::after {
  content: ''; position: absolute; top: 0; left: -60%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .42), transparent);
  transform: skewX(-18deg);
  animation: inspSheen 3.4s 1.6s ease-in-out infinite;
}
@keyframes inspSheen {
  0% { left: -60%; }
  45% { left: 130%; }
  100% { left: 130%; }
}

.inspire-tip {
  margin-top: 14px; font-size: 12px; color: var(--fg3); letter-spacing: .04em;
  opacity: 0; animation: inspFade .7s 1.2s ease both;
}

@media (max-width: 520px) {
  .inspire { padding: 30px 20px 22px; border-radius: 20px; }
  .inspire-quote { font-size: 58px; height: 26px; }
  .inspire-ok { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .inspire, .inspire-zh i, .inspire-rule, .inspire-en, .inspire-from, .inspire-ok, .inspire-tip {
    animation-duration: .01ms !important; animation-delay: 0s !important;
    opacity: 1 !important; transform: none !important;
  }
  .inspire::before, .inspire-quote, .inspire-spark, .inspire-ok::after { animation: none !important; }
}

/* ==================== 激励语库（独立词库） ==================== */
.quote-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.quote-card {
  display: flex; flex-direction: column; gap: 7px;
  background: var(--card2);
  border: 1px solid var(--line); border-radius: 13px;
  padding: 12px 14px 10px;
  transition: transform .18s cubic-bezier(.22, .68, .3, 1), border-color .18s, box-shadow .18s;
}
.quote-card:hover {
  transform: translateY(-2px);
  border-color: var(--line2);
  box-shadow: var(--shadow-sm);
}
.quote-cat {
  align-self: flex-start;
  font-size: 11.5px; font-weight: 600; letter-spacing: .3px;
  color: var(--fg3);
  border: 1px solid var(--line2); border-radius: 20px;
  padding: 0 8px; line-height: 1.7;
}
.quote-zh {
  font-family: "KaiTi", "STKaiti", "Kaiti SC", "Songti SC", "SimSun", serif;
  font-size: 16.5px; line-height: 1.5; color: var(--fg);
  letter-spacing: .4px;
}
.quote-en { font-size: 13.5px; line-height: 1.6; color: var(--fg2); }
.quote-actions {
  display: flex; gap: 6px; justify-content: flex-end;
  margin-top: auto; padding-top: 4px;
  opacity: 0; transition: opacity .18s;
}
.quote-card:hover .quote-actions,
.quote-card:focus-within .quote-actions { opacity: 1; }
@media (hover: none) { .quote-actions { opacity: 1; } }

/* 激励语库工具栏里的分类筛选 */
#q-cat { min-width: 100px; width: 118px; flex: 0 0 auto; }

/* 分页条 */
.pagination {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px;
  margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line);
}
.pagination .btn { min-width: 34px; }
.pagination .btn[disabled] { opacity: .38; cursor: default; }
.pagination .page-gap { color: var(--fg3); padding: 0 2px; letter-spacing: 1px; }
.pagination .page-info { margin: 0 6px 0 auto; white-space: nowrap; }
.pagination .input.sel.tiny {
  min-width: 76px; width: auto; height: 28px; padding: 1px 22px 1px 8px;
  font-size: 13px; border-radius: 8px; background-color: var(--card2);
  cursor: pointer;
}
.pagination .muted { margin-left: auto; }

/* ==================== 提示 ==================== */
.toast {
  position: fixed; bottom: 18px; right: 18px; left: auto; transform: translateY(14px);
  background: var(--card2); border: 1px solid var(--line2); color: var(--fg2);
  padding: 6px 12px; border-radius: 10px; box-shadow: var(--shadow-sm);
  opacity: 0; pointer-events: none; transition: all .24s cubic-bezier(.22, .68, .3, 1);
  font-size: 12.5px; z-index: 200;
  max-width: 300px; text-align: left;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.err { border-color: var(--err); color: var(--err); }
.toast.ok { border-color: var(--ok); color: var(--ok); }

/* ==================== 警告条 ==================== */
.warnbar {
  display: none; flex-direction: column; align-items: stretch; gap: 6px;
  background: var(--err-soft); border-bottom: 1px solid var(--err);
  color: var(--fg); padding: 9px 18px; font-size: 14px; line-height: 1.6;
}
.warnbar b { color: var(--err); }
.warnbar .warn-item { display: flex; gap: 10px; flex-wrap: wrap; align-items: baseline; }
.warnbar.info { background: var(--warn-soft); border-bottom-color: var(--warn); }
.warnbar.info b { color: var(--warn); }

/* ==================== 内置词库选择器 ==================== */
.seed-count { font-size: 13.5px; color: var(--fg2); margin: 4px 0 10px; }
.seed-count b { color: var(--fg); font-size: 15px; }

/* ==================== 打印 ==================== */
#print-sheet { display: none; }
@media print {
  @page { size: A4; margin: 15mm 14mm; }
  html, body { background: #fff !important; background-image: none !important; color: #000 !important; height: auto; overflow: visible; display: block; }
  body.printing .app-shell, body.printing .toast, body.printing .warnbar,
  body.printing .inspire-mask, body.printing .modal-mask { display: none !important; }
  body.printing #print-sheet {
    display: block !important; color: #000; background: #fff;
    font: 12pt/1.6 "Times New Roman", "Songti SC", "SimSun", serif;
  }
  #print-sheet h1 { font-size: 17pt; text-align: center; margin: 0 0 4mm; letter-spacing: 2px; }
  #print-sheet h2 { font-size: 12pt; margin: 6mm 0 2mm; }
  .ph-sub { text-align: center; font-size: 10pt; color: #333; margin-bottom: 6mm; border-bottom: 1px solid #999; padding-bottom: 3mm; }
  .p-note { font-size: 10pt; color: #444; margin-bottom: 5mm; }
  .p-sheet { width: 100%; border-collapse: collapse; }
  .p-sheet td { padding: 2.4mm 2mm; border-bottom: 1px dotted #bbb; vertical-align: bottom; }
  .p-sheet .idx { width: 9mm; color: #666; font-size: 10pt; }
  .p-sheet .en { font-weight: 600; font-size: 12pt; }
  .p-sheet .ph { width: 46mm; color: #333; font-size: 10.5pt; font-family: "Courier New", monospace; }
  .p-sheet .zh { width: 52mm; }
  .p-sheet .prompt { font-size: 12pt; }
  .p-sheet .blank { width: 60mm; }
  .line { display: inline-block; width: 58mm; border-bottom: 1px solid #666; height: 5mm; }
  .p-q { margin-bottom: 6mm; page-break-inside: avoid; }
  .p-corner { font-size: 9.5pt; color: #666; margin-top: 1mm; }
  .uline { display: inline-block; border-bottom: 1px solid #555; min-width: 26mm; }
  .uline-full { border-bottom: 1px solid #666; height: 7mm; margin-top: 2mm; }
  .p-answer { margin-top: 8mm; border-top: 2px dashed #999; padding-top: 4mm; page-break-before: always; }
  .p-answer div { font-size: 10.5pt; }
}

/* ===== 掌握 / 错题 独立页 + 词库统计 + 设置布局 ===== */
.cstat.seen b { color: var(--accent2); }
.cstat.seen:hover { border-color: var(--accent2); }
.lib-stats { margin-bottom: 16px; }

.m-page .m-top {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding-bottom: 14px; margin-bottom: 14px; border-bottom: 1px solid var(--line);
}
.m-page .m-top .searchbox { flex: 1; min-width: 220px; }
.m-page .stat-list { max-height: none; }
.m-page .stat-row .btn.danger { color: var(--err); }
.m-page .stat-row .btn.danger:hover { border-color: var(--err); background: var(--err-soft); }
.m-foot { display: flex; justify-content: flex-end; gap: 10px; padding-top: 16px; border-top: 1px solid var(--line); margin-top: 14px; }

.set-wrap { max-width: 920px; display: flex; flex-direction: column; gap: 18px; }
.set-wrap .grid2.set-grid { display: grid; grid-template-columns: 1fr 1.35fr; gap: 18px; align-items: start; }
.set-note { text-align: center; padding-bottom: 26px; }

/* ===== 云同步（设置页卡片） ===== */
.sync-pill {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--card2); border: 1px solid var(--line);
  color: var(--fg2); font-size: 13px; font-weight: 600;
  padding: 3px 11px; border-radius: 20px; white-space: nowrap;
}
.sync-pill.on { background: var(--ok-soft); border-color: transparent; color: var(--ok); }
.sync-dot {
  width: 8px; height: 8px; border-radius: 50%; flex: 0 0 8px;
  background: var(--fg3); transition: background .2s;
}
.sync-dot.on { background: var(--ok); animation: syncPulse 2.6s ease-in-out infinite; }
@keyframes syncPulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
#sync-url, #sync-code { font-family: ui-monospace, Consolas, "Courier New", monospace; font-size: 13.5px; letter-spacing: .4px; }
.f-row.grow > .btn-row { flex: 1; min-width: 220px; }
.f-row.grow > .btn-row > .input { flex: 1; min-width: 160px; }

@media (max-width: 900px) {
  .set-wrap .grid2.set-grid { grid-template-columns: 1fr; }
}

/* ===== 分页数字 + 卡片例句/逐词释义 + 语音语法页 ===== */
.pg-nums { display: inline-flex; align-items: center; gap: 4px; }
.pg-btn {
  min-width: 30px; height: 30px; padding: 0 8px; border-radius: 9px;
  border: 1px solid var(--line); background: var(--card); color: var(--fg2);
  font-size: 13.5px; cursor: pointer; transition: all .15s;
}
.pg-btn:hover { border-color: var(--accent); color: var(--accent); }
.pg-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 650; }
.pg-dots { color: var(--fg2); padding: 0 2px; }
.pg-of { color: var(--fg2); font-size: 14px; }

.fc-extra { margin: 12px 0 4px; text-align: left; }
.fcx-title { font-size: 12.5px; color: var(--fg2); letter-spacing: .08em; margin-bottom: 7px; }
.fc-ex {
  display: flex; align-items: center; gap: 9px; padding: 7px 10px; margin-bottom: 6px;
  background: var(--bg-soft, var(--card2)); border: 1px solid var(--line); border-radius: 10px;
}
.fc-ex .fce-main { font-size: 14px; line-height: 1.45; }
.fc-ex .fce-zh { margin-top: 1px; }
.fc-ex .fce-play { margin-left: auto; flex: none; }
.fc-back .gloss-list { margin-top: 4px; }

/* 例句条目：点英文句子展开逐词释义（单词卡背面与词条详情共用） */
.ex-item {
  display: flex; align-items: center; flex-wrap: wrap; gap: 2px 9px;
  padding: 7px 10px; margin-bottom: 6px;
  background: var(--bg-soft, var(--card2)); border: 1px solid var(--line); border-radius: 10px;
}
.ex-item .ex-toggle { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.ex-item .ex-toggle.clickable { cursor: pointer; }
.ex-item .ex-en { font-size: 14px; line-height: 1.45; }
.ex-item .ex-en .ex-target {
  color: var(--ok, #4ade80);
  font-weight: 700;
}
.ex-item .ex-zh { font-size: 12px; color: var(--fg2); }
.ex-item .ex-cue { font-size: 11.5px; color: var(--accent); opacity: .72; letter-spacing: .04em; }
.ex-item .ex-toggle.open .ex-cue { opacity: 1; }
.ex-item .ex-play { flex: none; }
.ex-item .gloss-panel {
  flex: 1 0 100%; margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--line);
}
.ex-item .gloss-panel .gloss-list { margin-top: 0; }

.basics-tabs { margin-bottom: 16px; flex-wrap: wrap; }
.basics-card { line-height: 1.7; }
.lt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 9px; }
.lt-card {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 10px 6px; border: 1px solid var(--line); border-radius: 11px; background: var(--card2);
  position: relative;
}
.lt-card b { font-size: 21px; }
.lt-card .lt-low { color: var(--fg2); font-size: 14px; }
.lt-card em { font-style: normal; color: var(--accent); font-size: 12px; }
.lt-card .fce-play { position: absolute; right: 6px; bottom: 6px; }
.ph-g { margin: 14px 0 8px; font-size: 14.5px; color: var(--fg); }
.ph-g:first-of-type { margin-top: 2px; }
.ph-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 9px; }
.ph-card {
  display: flex; flex-direction: column; gap: 1px; padding: 9px 10px; position: relative;
  border: 1px solid var(--line); border-radius: 11px; background: var(--card2);
}
.ph-card b { color: var(--accent); font-size: 16px; }
.ph-card span { font-size: 13.5px; }
.ph-card em { font-style: normal; color: var(--fg2); font-size: 12.5px; }
.ph-card .fce-play { position: absolute; right: 7px; bottom: 7px; }
.sk-card { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin-bottom: 12px; background: var(--card2); }
.sk-head { display: flex; align-items: center; gap: 9px; margin-bottom: 4px; }
.sk-ico { font-size: 16px; color: var(--accent); min-width: 22px; text-align: center; }

/* ===== 题型区铺满 + 练习页行顶对齐 ===== */
.f-row.top { align-items: flex-start; }
.f-row.top > label:first-child { padding-top: 9px; }
.f-fill { flex: 1; min-width: 260px; }
.typegrid { width: 100%; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
.typechk { display: flex; align-items: center; gap: 7px; line-height: 1.4; }
.typechk .muted.small { margin-left: auto; }

/* ===== 卡片统计条并入标题行 ===== */
.head-actions { align-items: center; flex-wrap: wrap; }
.head-actions .card-stats { margin: 0; gap: 8px; }
.head-actions .cstat { padding: 5px 12px; border-radius: 10px; }
.head-actions .cstat b { font-size: 16.5px; }
.head-actions .card-stats > .muted.small { font-size: 12px; }

/* ============================================================
   响应式 + 侧边栏收起
   ------------------------------------------------------------
   ≤820px   手机 / 平板竖屏：侧边栏变抽屉，顶栏出现
   >820px   平板横屏 / 电脑：侧边栏常驻，可手动收成只显示图标的窄栏
   env(safe-area-inset-*) 用于绕开 iPhone 的刘海和底部小黑条
   ============================================================ */

/* ---- 宽屏默认：顶栏 / 遮罩 / 抽屉关闭键都不出现 ---- */
.topbar { display: none; }
.nav-scrim { display: none; }
.nav-close { display: none; }

/* ---- 侧边栏底部的「收起」按钮 ---- */
.sidebar-foot {
  flex: 0 0 auto; border-top: 1px solid var(--line); padding: 8px 10px;
}
.nav-collapse {
  width: 100%; display: flex; align-items: center; gap: 9px;
  background: none; border: 0; color: var(--fg3);
  padding: 8px 11px; border-radius: 9px; cursor: pointer;
  font: inherit; font-size: 13.5px; text-align: left;
  transition: background .16s ease, color .16s ease;
}
.nav-collapse:hover { background: var(--card2); color: var(--fg); }
.nc-arrow { width: 18px; text-align: center; font-size: 15px; transition: transform .2s ease; }

/* ---- 收起成窄栏：只留图标 ---- */
body.nav-collapsed .sidebar { width: 62px; flex: 0 0 62px; }
body.nav-collapsed .brand { justify-content: center; padding-left: 0; padding-right: 0; }
body.nav-collapsed .brand-text,
body.nav-collapsed .nav-title { display: none; }
body.nav-collapsed #nav { padding-left: 6px; padding-right: 6px; }
body.nav-collapsed .nav-item { justify-content: center; gap: 0; padding: 10px 0; }
body.nav-collapsed .nav-item .nt,
body.nav-collapsed .nav-badge { display: none; }
body.nav-collapsed .nav-item.active::before { left: -6px; }
body.nav-collapsed .nav-collapse { justify-content: center; padding: 8px 0; }
body.nav-collapsed .nc-text { display: none; }
body.nav-collapsed .nc-arrow { transform: rotate(180deg); }

/* ---- 窄屏：手机 / 平板竖屏 ---- */
@media (max-width: 820px) {
  /* 顶栏 */
  .topbar {
    display: flex; align-items: center; gap: 10px; flex: 0 0 auto;
    padding: calc(env(safe-area-inset-top, 0px) + 9px) 12px 9px;
    background: var(--bg2); border-bottom: 1px solid var(--line);
    position: relative; z-index: 210;
  }
  .tbtn {
    background: var(--card2); border: 1px solid var(--line); color: var(--fg);
    width: 38px; height: 38px; flex: 0 0 38px; border-radius: 11px;
    font-size: 17px; line-height: 1; cursor: pointer;
    display: grid; place-items: center; -webkit-tap-highlight-color: transparent;
  }
  .tbtn:active { background: var(--accent-soft); }
  .tbrand { font-size: 16.5px; font-weight: 650; letter-spacing: .3px; }

  /* 侧边栏 → 抽屉 */
  .sidebar {
    position: fixed; top: 0; bottom: 0; left: 0;
    width: min(80vw, 300px); flex: none;
    transform: translateX(-102%);
    transition: transform .24s cubic-bezier(.22, .68, .3, 1);
    z-index: 240; box-shadow: var(--shadow);
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  body.nav-open .sidebar { transform: none; }
  .nav-close {
    display: grid; place-items: center; margin-left: auto;
    width: 32px; height: 32px; flex: 0 0 32px; border-radius: 9px;
    background: var(--card2); border: 1px solid var(--line); color: var(--fg2);
    font-size: 15px; cursor: pointer; -webkit-tap-highlight-color: transparent;
  }
  /* 抽屉模式下不需要「收起」按钮 */
  .sidebar-foot { display: none; }
  .nav-scrim {
    display: block; position: fixed; inset: 0; z-index: 230;
    background: rgba(4, 8, 16, .55);
    opacity: 0; pointer-events: none; transition: opacity .24s ease;
  }
  body.nav-open .nav-scrim { opacity: 1; pointer-events: auto; }

  /* 内容区：底部给 iPhone 小黑条留位置 */
  #view {
    padding: 14px 13px calc(env(safe-area-inset-bottom, 0px) + 34px);
    -webkit-overflow-scrolling: touch;
  }

  /* 标题行改成上下排，标题缩小 */
  .page-head { align-items: flex-start; gap: 10px; margin-bottom: 14px; }
  h1 { font-size: 19px; }
  .page-head h1 { padding-bottom: 6px; }
  .head-stats { gap: 14px; }
  .stat b { font-size: 18px; }
  .head-actions { width: 100%; }

  /* 手指点得中的尺寸 */
  .btn { min-height: 38px; }
  .seg-btn { padding: 8px 13px; }
  .input { min-height: 38px; }

  /* 表单行：标签独占一行，输入框撑满 */
  .f-row { align-items: flex-start; gap: 6px; }
  .f-row > label:first-child { width: auto; flex: none; font-size: 13px; }
  .f-row .input, .f-row > .btn-row { flex: 1 1 100%; min-width: 0; width: 100%; }
  .f-row.grow > .btn-row { min-width: 0; }
  .f-fill { min-width: 0; }

  /* 搜索框别把行撑破 */
  .searchbox, .m-page .m-top .searchbox { flex: 1 1 100%; min-width: 0; width: 100%; }

  /* 宽表格横向滚动，不撑破页面 */
  .ptable, .explain-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }

  /* 弹窗：贴底的大卡片，好按也好关 */
  .modal-mask { padding: 0; align-items: flex-end; }
  .modal {
    width: 100%; max-width: none; max-height: 92vh;
    border-radius: 18px 18px 0 0;
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .modal-foot { flex-wrap: wrap; }
  .modal-foot .btn { flex: 1 1 auto; min-width: 96px; }

  /* 卡片内边距收紧 */
  .card { padding: 14px 15px; margin-bottom: 13px; }
  .card-head { flex-wrap: wrap; }

  /* 单词卡筛选区：手机默认折叠 */
  .scope-bar { padding: 8px 12px; }
  .scope-bar-head { display: flex; }
  .scope-bar-body { display: none; width: 100%; padding-top: 8px; }
  .scope-bar.open .scope-bar-body { display: flex; animation: fadeUp .22s ease both; }
  .scope-bar-body .seg { flex: 1 1 100%; }
  .scope-bar-body .seg-btn { flex: 1 1 auto; }

  /* 批量导入：手机更紧凑 */
  .import-opts { flex-direction: column; gap: 8px; }
  .drop { padding: 18px 14px; }
  .codehint { font-size: 12px; }

  /* 每日任务：手机单栏、按钮换行撑满 */
  .two-col { grid-template-columns: 1fr; }
  .action-row { flex-direction: column; align-items: stretch; }
  .action-row .btn { width: 100%; white-space: normal; }
}

/* ---- 平板横屏 ~ 小笔记本：内容再收一点，侧边栏保持常驻 ---- */
@media (min-width: 821px) and (max-width: 1180px) {
  .sidebar { width: 200px; flex: 0 0 200px; }
  #view { padding: 20px 20px 60px; }
  .card { padding: 15px 16px; }
}