/* ============================================================
   喵箱代码 · 内页组件
   依赖 style.css 里的设计变量（--bg / --accent / --line …）
   ============================================================ */

/* ---------- 页面外壳 ---------- */
.page { padding: clamp(28px, 5vw, 56px) 0 clamp(64px, 8vw, 96px); }
.page-head { max-width: 52em; margin-bottom: clamp(24px, 4vw, 40px); }
.page-head h1 {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  letter-spacing: -0.025em;
  margin-top: 10px;
}
.page-head p { margin-top: 14px; color: var(--muted); font-size: .975rem; line-height: 1.85; }
.crumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--dim);
  margin-bottom: 18px;
}
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--accent); }

/* ---------- 芯片按钮 / 小按钮 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .022);
  color: var(--muted);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
  white-space: nowrap;
}
.chip:hover { color: var(--text); border-color: var(--line-2); }
.chip[aria-pressed="true"] {
  color: var(--accent);
  border-color: rgba(139, 124, 255, .45);
  background: var(--accent-dim);
}
.chip--ghost { border-style: dashed; }

.btn--sm { padding: 9px 18px; font-size: 13.5px; border-radius: 10px; }
.btn--quiet { border-color: var(--line-2); color: var(--muted); background: transparent; }
.btn--quiet:hover { color: var(--text); }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.toolbar__spacer { flex: 1; }
.field {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--dim);
}
.input, .select {
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, .025);
  color: var(--text);
  font-family: var(--font);
  font-size: 13.5px;
  outline: none;
  transition: border-color .18s var(--ease);
}
.input:focus, .select:focus { border-color: rgba(139, 124, 255, .5); }
.input::placeholder { color: var(--dim); }
.select option { background: #14141A; color: var(--text); }

/* ============================================================
   阅读器
   ============================================================ */
.reader { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 28px; align-items: start; }
@media (max-width: 900px) { .reader { grid-template-columns: 1fr; } }

.side {
  position: sticky;
  top: 78px;
  max-height: calc(100vh - 96px);
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .018);
  padding: 10px;
  scrollbar-width: thin;
}
.side__group { margin-bottom: 10px; }
.side__title {
  font-size: 11px;
  font-family: var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 8px 10px 6px;
}
.side__item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  border: none;
  border-radius: 8px;
  background: none;
  color: var(--muted);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.55;
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease);
}
.side__item:hover { background: rgba(255, 255, 255, .05); color: var(--text); }
.side__item.is-active { background: var(--accent-dim); color: var(--accent); }
.side__item small { display: block; color: var(--dim); font-size: 11px; margin-top: 2px; }

.article {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .018);
  padding: clamp(22px, 3.4vw, 40px);
  min-height: 40vh;
}
.article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  font-size: 12px;
  color: var(--dim);
  font-family: var(--mono);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}
.article__meta .tag {
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
}
.article__title { font-size: clamp(1.3rem, 2.6vw, 1.75rem); letter-spacing: -.02em; margin-bottom: 8px; }
.article__q { color: var(--muted); font-size: .9375rem; line-height: 1.8; margin-bottom: 26px; }
.article__nav { display: flex; gap: 10px; margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); }
.article__nav .btn { flex: 1; justify-content: center; }

/* ---------- markdown 正文 ---------- */
.md-h { margin: 34px 0 14px; letter-spacing: -.01em; }
.md-h3 {
  font-size: 1.0625rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}
.md-h3::before {
  content: "";
  width: 4px; height: 16px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  flex-shrink: 0;
}
.md-h4 { font-size: .975rem; color: #E8E8F2; }
.md-p { margin: 14px 0; color: #C9C9D4; font-size: .9375rem; line-height: 1.92; }
.md-p strong, .md-list strong { color: #fff; font-weight: 700; }
.md-list { margin: 14px 0; padding-left: 22px; }
.md-list li { list-style: decimal; color: #C9C9D4; font-size: .9375rem; line-height: 1.9; margin-bottom: 8px; }
ul.md-list li { list-style: disc; }
.md-list--sub { margin: 8px 0 8px; padding-left: 20px; }
.md-list--sub li { list-style: circle; font-size: .9rem; color: var(--muted); margin-bottom: 4px; }
.md-quote {
  margin: 18px 0;
  padding: 14px 18px;
  border-left: 2px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: rgba(139, 124, 255, .07);
  color: #C9C9D4;
  font-size: .9rem;
  line-height: 1.85;
}
.md-hr { border: none; border-top: 1px solid var(--line); margin: 28px 0; }
.md-inline-code {
  padding: 1.5px 6px;
  border-radius: 5px;
  background: rgba(139, 124, 255, .12);
  color: #D9D3FF;
  font-family: var(--mono);
  font-size: .875em;
  word-break: break-word;
}
.md-p a, .md-list a { color: var(--accent-2); border-bottom: 1px solid rgba(90, 209, 199, .35); }

.md-table-wrap { margin: 20px 0; overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.md-table { border-collapse: collapse; width: 100%; font-size: .875rem; }
.md-table th, .md-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  color: #C9C9D4;
  vertical-align: top;
  line-height: 1.7;
}
.md-table th { background: rgba(255, 255, 255, .035); color: #fff; font-weight: 600; white-space: nowrap; }
.md-table tr:last-child td { border-bottom: none; }

/* ---------- 代码块 ---------- */
.md-code {
  margin: 18px 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #0C0C10;
}
.md-code__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(255, 255, 255, .025);
  border-bottom: 1px solid var(--line);
}
.md-code__lang {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--dim);
}
.md-copy {
  padding: 3px 10px;
  border: 1px solid var(--line-2);
  border-radius: 7px;
  background: transparent;
  color: var(--dim);
  font-family: var(--font);
  font-size: 11.5px;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.md-copy:hover { color: var(--text); border-color: rgba(255, 255, 255, .3); }
.md-copy.is-done { color: var(--accent-2); border-color: rgba(90, 209, 199, .45); }
.md-code pre { margin: 0; padding: 16px; overflow-x: auto; }
.md-code code {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  color: #D6D6E0;
  white-space: pre;
  tab-size: 4;
}
.hl .t-k { color: #B49BFF; }
.hl .t-s { color: #7FD6A9; }
.hl .t-c { color: #5E6070; font-style: italic; }
.hl .t-n { color: #E8B87A; }
.hl .t-f { color: #78B7FF; }

/* ============================================================
   代码试炼场
   ============================================================ */
.lab { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 16px; align-items: start; }
@media (max-width: 900px) { .lab { grid-template-columns: 1fr; } }
.lab__pane {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #0C0C10;
  display: flex;
  flex-direction: column;
  min-height: 360px;
}
.lab__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .025);
  flex-wrap: wrap;
}
.lab__bar .label { font-family: var(--mono); font-size: 11.5px; color: var(--dim); letter-spacing: .06em; }
.lab__bar .toolbar__spacer { flex: 1; }
.lab__editor {
  flex: 1;
  width: 100%;
  min-height: 300px;
  padding: 16px;
  border: none;
  outline: none;
  resize: vertical;
  background: transparent;
  color: #E4E4EE;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.85;
  tab-size: 4;
  caret-color: var(--accent);
}
.lab__editor::selection { background: rgba(139, 124, 255, .3); }
.lab__out {
  flex: 1;
  margin: 0;
  padding: 16px;
  overflow: auto;
  max-height: 460px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  color: #C9C9D4;
  white-space: pre-wrap;
  word-break: break-word;
}
.lab__out .ok { color: var(--accent-2); }
.lab__out .err { color: #FF8A8A; }
.lab__out .dim { color: var(--dim); }
.lab__status {
  padding: 8px 14px;
  font-size: 12px;
  color: var(--dim);
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
}
.lab__status .spin {
  width: 11px; height: 11px;
  border: 2px solid rgba(139, 124, 255, .3);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.lab__hint { margin-top: 18px; font-size: .875rem; color: var(--dim); line-height: 1.8; }
.lab__hint code {
  font-family: var(--mono);
  font-size: .9em;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .06);
  color: var(--muted);
}

/* ============================================================
   刷题
   ============================================================ */
.quiz-wrap { max-width: 780px; margin-inline: auto; }
.q-progress {
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .07);
  overflow: hidden;
  margin-bottom: 22px;
}
.q-progress > i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .3s var(--ease);
}
.q-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .018);
  padding: clamp(20px, 3vw, 32px);
}
.q-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dim);
  margin-bottom: 16px;
}
.q-meta .tag { padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); }
.q-stem { font-size: clamp(1.02rem, 2vw, 1.2rem); font-weight: 600; line-height: 1.75; color: #fff; }
.q-stem code {
  font-family: var(--mono);
  font-size: .88em;
  padding: 1.5px 6px;
  border-radius: 5px;
  background: rgba(139, 124, 255, .13);
  color: #D9D3FF;
}
.q-code {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0C0C10;
  overflow: hidden;
}
.q-code pre { margin: 0; padding: 14px 16px; overflow-x: auto; }
.q-code code { font-family: var(--mono); font-size: 13px; line-height: 1.75; color: #D6D6E0; }
.q-options { margin-top: 22px; display: grid; gap: 10px; }
.q-opt {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .018);
  color: #D5D5E0;
  font-family: var(--font);
  font-size: .9375rem;
  line-height: 1.7;
  text-align: left;
  cursor: pointer;
  transition: border-color .16s var(--ease), background .16s var(--ease), color .16s var(--ease);
}
.q-opt:hover:not(:disabled) { border-color: var(--line-2); background: rgba(255, 255, 255, .045); }
.q-opt:disabled { cursor: default; }
.q-opt__key {
  flex-shrink: 0;
  width: 22px; height: 22px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  border: 1px solid var(--line-2);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dim);
  margin-top: 1px;
}
.q-opt.is-right { border-color: rgba(90, 209, 199, .55); background: rgba(90, 209, 199, .1); color: #EAFBF6; }
.q-opt.is-right .q-opt__key { border-color: rgba(90, 209, 199, .6); color: var(--accent-2); }
.q-opt.is-wrong { border-color: rgba(255, 138, 138, .55); background: rgba(255, 138, 138, .09); color: #FFE9E9; }
.q-opt.is-wrong .q-opt__key { border-color: rgba(255, 138, 138, .6); color: #FF8A8A; }
.q-fill { margin-top: 22px; display: flex; gap: 10px; flex-wrap: wrap; }
.q-fill .input { flex: 1; min-width: 200px; font-family: var(--mono); }
.q-feedback {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .022);
  font-size: .9rem;
  line-height: 1.85;
  color: var(--muted);
}
.q-feedback.is-right { border-color: rgba(90, 209, 199, .35); background: rgba(90, 209, 199, .06); }
.q-feedback.is-wrong { border-color: rgba(255, 138, 138, .35); background: rgba(255, 138, 138, .05); }
.q-feedback b { color: #fff; }
.q-feedback .verdict { font-weight: 700; margin-right: 6px; }
.q-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 22px; }
.q-actions .btn { flex: 1; justify-content: center; min-width: 130px; }

.quiz-empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.quiz-empty h3 { color: #fff; margin-bottom: 12px; }

.result {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 40px);
  text-align: center;
  background:
    radial-gradient(520px 220px at 50% 0%, rgba(139, 124, 255, .12), transparent 72%),
    rgba(255, 255, 255, .018);
}
.result__score {
  font-family: var(--mono);
  font-size: clamp(2.6rem, 8vw, 4rem);
  font-weight: 700;
  letter-spacing: -.03em;
  background: linear-gradient(96deg, #fff, #B9B2FF);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.result__sub { color: var(--muted); margin-top: 10px; font-size: .9375rem; }
.result__detail { display: flex; justify-content: center; gap: 26px; margin-top: 22px; flex-wrap: wrap; }
.result__detail div { font-size: 12.5px; color: var(--dim); font-family: var(--mono); }
.result__detail b { display: block; font-size: 1.25rem; color: var(--text); font-family: var(--mono); }

/* ============================================================
   术语词典
   ============================================================ */
.gloss { display: grid; grid-template-columns: minmax(0, 320px) minmax(0, 1fr); gap: 20px; align-items: start; }
@media (max-width: 900px) { .gloss { grid-template-columns: 1fr; } }
.gloss__list {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  max-height: 70vh;
  overflow-y: auto;
  scrollbar-width: thin;
  background: rgba(255, 255, 255, .015);
}
.gloss__item {
  display: block;
  width: 100%;
  padding: 12px 16px;
  border: none;
  border-bottom: 1px solid var(--line);
  background: none;
  text-align: left;
  cursor: pointer;
  font-family: var(--font);
  transition: background .16s var(--ease);
}
.gloss__item:hover { background: rgba(255, 255, 255, .045); }
.gloss__item.is-active { background: var(--accent-dim); }
.gloss__term { font-size: .9375rem; color: var(--text); font-weight: 600; font-family: var(--mono); }
.gloss__brief { display: block; font-size: 12.5px; color: var(--dim); margin-top: 3px; line-height: 1.6; }
.gloss__detail {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3vw, 34px);
  background: rgba(255, 255, 255, .018);
  min-height: 320px;
}
.gloss__head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.gloss__head h2 { font-family: var(--mono); font-size: clamp(1.3rem, 3vw, 1.7rem); letter-spacing: -.02em; }
.gloss__kind { font-size: 11.5px; font-family: var(--mono); padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--dim); }
.gloss__langs { display: flex; gap: 6px; flex-wrap: wrap; margin: 12px 0 18px; }
.gloss__langs span {
  font-size: 11.5px;
  font-family: var(--mono);
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .05);
  color: var(--muted);
}
.gloss__p { color: #C9C9D4; font-size: .9375rem; line-height: 1.9; margin: 12px 0; }
.gloss__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 24px;
  margin-bottom: 8px;
}
.gloss__pitfall {
  border-left: 2px solid rgba(255, 138, 138, .55);
  background: rgba(255, 138, 138, .05);
  border-radius: 0 10px 10px 0;
  padding: 12px 16px;
  font-size: .9rem;
  line-height: 1.85;
  color: #E6D5D5;
}
.gloss__rel { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }

/* ============================================================
   学习列表
   ============================================================ */
.learn-grid { display: grid; gap: 12px; }
.learn-row {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 15px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .016);
  text-align: left;
  cursor: pointer;
  font-family: var(--font);
  transition: border-color .16s var(--ease), background .16s var(--ease), transform .16s var(--ease);
}
.learn-row:hover { border-color: var(--line-2); background: rgba(255, 255, 255, .042); transform: translateX(2px); }
.learn-row__no {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dim);
  min-width: 34px;
  flex-shrink: 0;
}
.learn-row__main { flex: 1; min-width: 0; }
.learn-row__title { font-size: .9375rem; color: var(--text); line-height: 1.5; }
.learn-row__sub { font-size: 12px; color: var(--dim); margin-top: 3px; font-family: var(--mono); }
.learn-row__badge {
  flex-shrink: 0;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--dim);
  font-family: var(--mono);
}
.learn-empty { padding: 50px 20px; text-align: center; color: var(--dim); font-size: .9375rem; }
.count-line { font-size: 12.5px; color: var(--dim); font-family: var(--mono); margin-bottom: 12px; }

/* ============================================================
   学习仪表盘 / 统计 / 热力图 / 对比表 / 搜索
   ============================================================ */

/* ---------- 数据卡 ---------- */
.dash { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.stat-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  background: linear-gradient(180deg, rgba(23, 23, 29, .7), rgba(16, 16, 20, .7));
}
.stat-card__num {
  font-family: var(--mono);
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
  line-height: 1.1;
}
.stat-card__num small { font-size: .5em; color: var(--dim); font-weight: 400; margin-left: 2px; }
.stat-card__label { font-size: 12.5px; color: var(--dim); margin-top: 6px; }

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .016);
  padding: clamp(20px, 3vw, 28px);
}
.panel + .panel { margin-top: 14px; }
.panel__head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.panel__head h2 { font-size: 1.0625rem; }
.panel__head .toolbar__spacer { flex: 1; }
.panel__note { font-size: .875rem; color: var(--dim); line-height: 1.8; margin-top: 12px; }

/* ---------- 热力图 ---------- */
.heat { display: flex; gap: 3px; overflow-x: auto; padding-bottom: 6px; scrollbar-width: thin; }
.heat__week { display: grid; grid-template-rows: repeat(7, 12px); gap: 3px; }
.heat__cell {
  width: 12px; height: 12px;
  border-radius: 3px;
  background: rgba(255, 255, 255, .055);
}
.heat__cell[data-lv="1"] { background: rgba(139, 124, 255, .28); }
.heat__cell[data-lv="2"] { background: rgba(139, 124, 255, .55); }
.heat__cell[data-lv="3"] { background: rgba(139, 124, 255, .92); }
.heat__legend { display: flex; align-items: center; gap: 6px; font-size: 11.5px; color: var(--dim); margin-top: 10px; font-family: var(--mono); }

/* ---------- 对比表 ---------- */
.cmp-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: auto; }
.cmp { border-collapse: separate; border-spacing: 0; width: 100%; font-size: .875rem; }
.cmp th, .cmp td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}
.cmp thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #14141A;
  color: #fff;
  font-weight: 600;
  font-size: 12.5px;
  border-bottom: 1px solid var(--line-2);
}
.cmp tbody th {
  position: sticky;
  left: 0;
  z-index: 1;
  background: #101014;
  color: var(--accent);
  font-weight: 600;
  font-size: 12.5px;
  border-right: 1px solid var(--line);
}
.cmp td { color: #C9C9D4; font-family: var(--mono); font-size: 12.5px; line-height: 1.6; }
.cmp tbody tr:hover td { background: rgba(255, 255, 255, .022); }

/* ---------- 逐题回顾 ---------- */
.review { display: grid; gap: 10px; }
.review__item {
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-2);
  border-radius: 10px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, .016);
}
.review__item.ok { border-left-color: rgba(90, 209, 199, .7); }
.review__item.bad { border-left-color: rgba(255, 138, 138, .7); }
.review__stem { font-size: .9375rem; color: var(--text); line-height: 1.7; }
.review__line { font-size: 12.5px; color: var(--dim); margin-top: 8px; line-height: 1.7; }
.review__line b { font-weight: 600; }
.review__line .good { color: var(--accent-2); }
.review__line .bad { color: #FF8A8A; }

/* ---------- 搜索页 ---------- */
.search-bar { display: flex; gap: 10px; margin-bottom: 20px; }
.search-bar .input { flex: 1; font-size: 15px; padding: 13px 16px; }
.sr-group { margin-top: 26px; }
.sr-group h2 { font-size: .9375rem; color: var(--muted); margin-bottom: 12px; font-family: var(--mono); letter-spacing: .06em; }
.sr-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, .014);
  color: inherit;
  font-family: var(--font);
  cursor: pointer;
  margin-bottom: 8px;
  transition: border-color .16s var(--ease), background .16s var(--ease);
}
.sr-item:hover { border-color: var(--line-2); background: rgba(255, 255, 255, .04); }
.sr-item__title { font-size: .9375rem; color: var(--text); }
.sr-item__sub { font-size: 12px; color: var(--dim); margin-top: 4px; font-family: var(--mono); }
mark { background: rgba(139, 124, 255, .3); color: #fff; border-radius: 3px; padding: 0 2px; }

/* ---------- 列表项（错题本 / 最近学习） ---------- */
.list { display: grid; gap: 8px; }
.list-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, .014);
}
.list-row__main { flex: 1; min-width: 0; }
.list-row__title { font-size: .9rem; color: var(--text); line-height: 1.55; }
.list-row__sub { font-size: 11.5px; color: var(--dim); margin-top: 3px; font-family: var(--mono); }
.list-row .btn { flex-shrink: 0; }
.icon-btn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--dim);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-family: var(--font);
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.icon-btn:hover { color: #FF8A8A; border-color: rgba(255, 138, 138, .45); }

/* ---------- 目标选择 ---------- */
.goal-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.goal-row .chips { flex: 1; min-width: 240px; }

/* ---------- 空态 ---------- */
.empty { text-align: center; padding: 44px 20px; color: var(--dim); font-size: .9rem; line-height: 1.8; }
.empty b { color: var(--muted); }

/* ---------- 学习指南里的章节折叠 ---------- */
details.path-chapter {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, .014);
  margin-top: 8px;
}
details.path-chapter > summary {
  cursor: pointer;
  padding: 11px 16px;
  font-size: .9375rem;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
details.path-chapter > summary::-webkit-details-marker { display: none; }
details.path-chapter > summary::before {
  content: "▸";
  color: var(--accent);
  font-size: 11px;
}
details.path-chapter[open] > summary::before { content: "▾"; }
details.path-chapter .count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--dim);
}
details.path-chapter .list { padding: 0 14px 14px; }

/* ---------- 站内页脚 ---------- */
.site-foot {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  margin-top: clamp(36px, 6vw, 72px);
}
.site-foot__inner {
  display: flex;
  align-items: center;
  gap: 10px 18px;
  flex-wrap: wrap;
  padding-block: 22px;
  font-size: 12.5px;
  color: var(--dim);
}
.site-foot__links { margin-left: auto; display: flex; gap: 8px 16px; flex-wrap: wrap; }
.site-foot__links a { transition: color .16s var(--ease); }
.site-foot__links a:hover { color: var(--accent); }
.site-foot__links a.is-on { color: var(--accent); }

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(10, 10, 12, .8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar__inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.topbar__links { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.topbar__links a {
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 13.5px;
  color: var(--muted);
  transition: color .16s var(--ease), background .16s var(--ease);
}
.topbar__links a:hover { color: var(--text); background: rgba(255, 255, 255, .05); }
.topbar__links a.is-on { color: var(--accent); background: var(--accent-dim); }
@media (max-width: 640px) {
  .topbar__inner { padding: 10px 16px; gap: 10px; }
  .topbar__links { width: 100%; margin-left: 0; justify-content: space-between; }
  .topbar__links a { padding: 6px 9px; font-size: 13px; }
}