:root {
  --navy-950: #0b2342;
  --navy-900: #12335f;
  --navy-800: #194477;
  --blue-600: #176fe5;
  --blue-100: #e9f2ff;
  --sky-500: #159bd7;
  --orange-500: #ec7b25;
  --green-600: #16845b;
  --red-600: #cf3e44;
  --ink: #132238;
  --muted: #637086;
  --line: #dce4ef;
  --surface: #ffffff;
  --canvas: #f4f7fb;
  --shadow: 0 8px 24px rgba(17, 48, 86, .08);
  --radius: 18px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { width: 100%; max-width: 100%; color-scheme: light; background: var(--canvas); overflow-x: clip; }
body {
  margin: 0;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, svg { max-width: 100%; }
button, input, textarea, select { font: inherit; }
button, a { touch-action: manipulation; }
button { -webkit-tap-highlight-color: rgba(23, 111, 229, .12); }
.skip-link {
  position: fixed;
  z-index: 200;
  left: 12px;
  top: 8px;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  white-space: nowrap;
  clip-path: inset(50%);
  color: white;
  background: var(--navy-950);
  border-radius: 10px;
}
.skip-link:focus { width: auto; height: auto; padding: 10px 14px; overflow: visible; clip-path: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
button:focus-visible, input:focus-visible, textarea:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid rgba(23, 111, 229, .35);
  outline-offset: 2px;
}
.app-shell { width: 100%; min-width: 0; min-height: 100dvh; background: var(--canvas); overflow-x: clip; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: 52px;
  padding: 0 max(16px, env(safe-area-inset-left));
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  align-items: center;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(220, 228, 239, .8);
  backdrop-filter: blur(14px);
}
.topbar-title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: center; font-size: 17px; font-weight: 750; letter-spacing: .01em; }
.icon-button {
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: currentColor;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 120ms ease, background-color 120ms ease;
}
.icon-button:active { transform: scale(.92); background: var(--blue-100); }
.icon-button svg { width: 24px; height: 24px; }
.is-hidden { visibility: hidden; pointer-events: none; }
#main { width: 100%; min-width: 0; min-height: calc(100dvh - 116px); padding: 11px 16px calc(94px + var(--safe-bottom)); overflow-x: clip; }
.page { width: 100%; min-width: 0; max-width: 680px; margin: 0 auto; }
.splash { min-height: 65dvh; display: grid; place-content: center; justify-items: center; gap: 10px; color: var(--muted); }
.splash img { border-radius: 22px; box-shadow: var(--shadow); }
.splash strong { color: var(--navy-900); font-size: 20px; }

.brand-row { display: flex; align-items: center; gap: 12px; margin: 0 0 13px; }
.brand-row img { width: 52px; height: 52px; border-radius: 15px; box-shadow: 0 5px 18px rgba(18, 51, 95, .12); }
.brand-copy { min-width: 0; }
.online-badge { margin-left: auto; flex: 0 0 auto; display: inline-flex; align-items: center; gap: 5px; min-height: 32px; padding: 5px 10px; border: 1px solid #b9e4d2; border-radius: 999px; background: #eefaf5; color: #126744; font-size: 12px; white-space: nowrap; }
.online-badge strong { font-size: 14px; font-variant-numeric: tabular-nums; }
.online-dot { width: 8px; height: 8px; border-radius: 50%; background: #1aa56f; box-shadow: 0 0 0 3px rgba(26,165,111,.13); }
.brand-copy h1 { margin: 0; font-size: clamp(23px, 7vw, 34px); line-height: 1.15; color: var(--navy-950); overflow-wrap: anywhere; }
.brand-copy p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.hero {
  position: relative;
  overflow: hidden;
  padding: 16px 22px;
  color: white;
  background: var(--navy-900);
  border-radius: 24px 24px 24px 8px;
  box-shadow: 0 14px 30px rgba(18, 51, 95, .18);
}
.hero::after {
  content: "";
  position: absolute;
  width: 170px;
  height: 170px;
  border: 26px solid rgba(255,255,255,.07);
  border-radius: 50%;
  right: -72px;
  top: -78px;
}
.hero small { color: #c9dbf2; }
.hero h2 { margin: 4px 0 3px; max-width: 16em; font-size: 23px; line-height: 1.22; }
.hero p { margin: 0 0 11px; color: #dce9f9; font-size: 13px; }
.hero-actions { display: flex; align-items: center; gap: 12px; }
.hero-progress { min-width: 72px; color: #c9dbf2; font-size: 13px; }
.hero-progress strong { display: block; color: white; font-size: 22px; line-height: 1.1; }

.button {
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 750;
  cursor: pointer;
  transition: transform 120ms ease, filter 150ms ease, background-color 150ms ease;
}
.button:active { transform: scale(.97); filter: brightness(.96); }
.button:disabled { cursor: not-allowed; opacity: .48; }
.button-primary { color: white; background: var(--blue-600); }
.button-light { color: var(--navy-900); background: white; }
.button-outline { color: var(--blue-600); background: transparent; border-color: var(--blue-600); }
.button-quiet { color: var(--navy-800); background: var(--blue-100); }
.button-danger { color: var(--red-600); background: #fff1f2; }
.button-block { width: 100%; }
.button svg { width: 20px; height: 20px; }
.button.is-loading { pointer-events: none; color: transparent; position: relative; }
.button.is-loading::after { content: ""; position: absolute; width: 20px; height: 20px; border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; color: white; }
@keyframes spin { to { transform: rotate(360deg); } }

.section-head { margin: 22px 0 12px; display: flex; align-items: end; justify-content: space-between; gap: 14px; }
.bank-section-head { margin-top: 17px; }
.section-head h2, .section-head h3 { margin: 0; color: var(--navy-950); font-size: 20px; }
.section-head p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
.text-action { min-height: 44px; padding: 0 4px; color: var(--blue-600); background: transparent; border: 0; font-weight: 700; cursor: pointer; }

.bank-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.bank-card {
  min-height: 154px;
  padding: 16px;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 3px 14px rgba(17, 48, 86, .045);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}
.bank-card:active { transform: scale(.975); border-color: #aacaf1; box-shadow: none; }
.bank-card img { width: 50px; height: 50px; object-fit: contain; margin-bottom: 11px; }
.bank-card strong { font-size: 18px; color: var(--navy-950); }
.bank-card span { margin-top: auto; color: var(--muted); font-size: 13px; }
.bank-card.common { background: #edf5ff; border-color: #c9ddfa; }
.bank-card.common .common-mark { width: 50px; height: 50px; border-radius: 14px; display: grid; place-items: center; color: white; background: var(--navy-900); margin-bottom: 11px; }
.bank-card.common svg { width: 26px; height: 26px; }

.stat-strip { margin-top: 10px; display: grid; grid-template-columns: repeat(3, 1fr); background: white; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { padding: 10px 8px; text-align: center; position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 1px; background: var(--line); }
.stat strong { display: block; color: var(--navy-900); font-size: 22px; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 12px; }

.history-card { width: 100%; padding: 18px; text-align: left; color: white; border: 0; border-radius: 18px; background: var(--navy-950); cursor: pointer; display: flex; align-items: center; gap: 14px; }
.history-card:active { transform: scale(.985); }
.history-icon { width: 46px; height: 46px; flex: none; border-radius: 13px; background: rgba(255,255,255,.12); display: grid; place-items: center; }
.history-icon svg { width: 24px; height: 24px; }
.history-card strong { display: block; font-size: 18px; }
.history-card span { color: #cbd8ea; font-size: 13px; }
.history-count { margin-left: auto; color: #ffd291; font-size: 17px; font-weight: 750; white-space: nowrap; }

.scope-tabs { margin: 0 -16px 12px; padding: 0 16px; display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.scope-tabs::-webkit-scrollbar { display: none; }
.scope-tab { min-height: 44px; padding: 0 16px; white-space: nowrap; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: white; font-weight: 700; cursor: pointer; }
.scope-tab[aria-selected="true"] { color: white; background: var(--navy-900); border-color: var(--navy-900); }
.bank-quick-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 11px 0 2px; }
.bank-quick-card { min-width: 0; min-height: 78px; padding: 13px 14px; display: flex; align-items: center; gap: 11px; text-align: left; color: var(--ink); background: linear-gradient(135deg, #fff, #f3f8ff); border: 1px solid #c5d9f4; border-radius: 17px; box-shadow: 0 6px 18px rgba(18, 51, 95, .07); cursor: pointer; transition: transform 140ms ease, border-color 140ms ease, box-shadow 140ms ease; }
.bank-quick-card:active { transform: scale(.98); border-color: #87b7ee; box-shadow: none; }
.bank-quick-card > span:nth-child(2) { min-width: 0; flex: 1; }
.bank-quick-card strong, .bank-quick-card small { display: block; }
.bank-quick-card strong { color: var(--navy-950); font-size: 16px; line-height: 1.35; white-space: nowrap; }
.bank-quick-card small { margin-top: 2px; color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bank-quick-card .chevron { color: #7690ae; }
.bank-quick-icon { width: 42px; height: 42px; flex: 0 0 42px; display: grid; place-items: center; color: white; background: var(--navy-900); border-radius: 12px; box-shadow: 0 5px 12px rgba(18, 51, 95, .18); }
.bank-quick-mock .bank-quick-icon { background: var(--blue-600); }
.bank-quick-memory { grid-column: 1 / -1; }
.bank-quick-memory .bank-quick-icon { background: var(--green-600); }
.bank-quick-icon svg { width: 22px; height: 22px; }
.bank-summary { padding: 13px 16px; color: white; border-radius: 17px; background: linear-gradient(120deg, var(--navy-900), #1b609a); }
.bank-summary strong { margin: 1px 0; font-size: 21px; display: block; }
.bank-summary > span:first-child { font-size: 12px; }
.bank-summary > span:last-child { font-size: 12px; }
.bank-summary span { color: #d7e7f8; }
.module-list { display: grid; gap: 9px; }
.module-card {
  position: relative;
  overflow: hidden;
  width: 100%;
  min-height: 78px;
  padding: 12px 14px 11px 20px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5px 12px;
  text-align: left;
  background: white;
  border: 1px solid var(--line);
  border-radius: 16px;
  cursor: pointer;
}
.module-card, .list-row { content-visibility: auto; contain-intrinsic-size: auto 92px; }
.module-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px; background: var(--module-color, var(--blue-600)); }
.module-card:active { transform: scale(.985); }
.module-card strong { font-size: 17px; }
.module-card .count { color: var(--navy-800); font-weight: 700; }
.module-status { grid-column: 1 / -1; }
.module-meta { color: var(--muted); font-size: 13px; }
.mini-progress { grid-column: 1 / -1; height: 5px; background: #edf1f6; border-radius: 999px; overflow: hidden; }
.mini-progress span { display: block; height: 100%; background: var(--module-color, var(--blue-600)); border-radius: inherit; }

.practice-page { min-width: 0; padding-bottom: calc(76px + var(--safe-bottom)); }
.practice-meta { min-width: 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 13px; }
.practice-meta span { min-width: 0; white-space: normal; overflow-wrap: anywhere; line-height: 1.6; }
.practice-meta strong { flex: none; }
.progress-track { height: 5px; margin: 10px 0 20px; background: #e4ebf4; border-radius: 999px; overflow: hidden; }
.progress-track span { display: block; height: 100%; background: var(--blue-600); transition: width 220ms ease; }
.question-card { min-width: 0; padding: 20px 18px; background: white; border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 4px 18px rgba(17,48,86,.045); overflow: hidden; }
.question-tools { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.tag { min-height: 32px; padding: 5px 10px; display: inline-flex; align-items: center; border-radius: 9px; color: var(--navy-800); background: var(--blue-100); font-size: 13px; font-weight: 700; }
.favorite-button { width: auto; padding: 8px 10px; gap: 5px; color: var(--muted); }
.favorite-button.active { color: #b66a00; background: #fff5df; }
.favorite-button span { font-size: 13px; }
.question-stem { margin: 0; max-width: 100%; font-size: clamp(17px, 4.8vw, 19px); line-height: 1.7; font-weight: 650; overflow-wrap: anywhere; word-break: break-word; }
h1, h2, h3 { text-wrap: balance; scroll-margin-top: 72px; }
.material { min-width: 0; max-width: 100%; margin: 0 0 16px; padding: 14px; border-left: 4px solid var(--sky-500); color: #33445d; background: #f2f8fd; border-radius: 4px 12px 12px 4px; overflow-wrap: anywhere; word-break: break-word; }
.material-group-status { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; margin: 0 0 12px; padding: 11px 13px; color: #124d7a; background: #eaf6ff; border: 1px solid #b8def8; border-radius: 12px; }
.material-group-status strong { font-size: 14px; }
.material-group-status span { color: #0869ad; font-weight: 750; }
.material-group-status small { grid-column: 1 / -1; color: #456b87; line-height: 1.55; }
.material-line { margin: 0 0 10px; line-height: 1.75; }
.material-line:last-child { margin-bottom: 0; }
.question-underline { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: .18em; }
.material-table-scroll { max-width: 100%; margin: 12px 0 4px; overflow-x: auto; border: 1px solid #c9d8e8; border-radius: 10px; background: white; -webkit-overflow-scrolling: touch; }
.material-table { width: 100%; min-width: max-content; border-collapse: collapse; font-size: 14px; line-height: 1.45; }
.material-table th, .material-table td { padding: 10px 12px; border-right: 1px solid #dce5ef; border-bottom: 1px solid #dce5ef; text-align: center; white-space: nowrap; }
.material-table th { color: var(--navy-800); background: #eaf3fc; font-weight: 750; }
.material-table tr:last-child td { border-bottom: 0; }
.material-table th:last-child, .material-table td:last-child { border-right: 0; }
.source-pages { margin-top: 12px; border-top: 1px solid #d7e3ef; }
.source-pages summary { padding: 12px 0 2px; color: var(--blue-700); font-weight: 700; cursor: pointer; }
.source-pages-hint { margin: 8px 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.source-pages-strip { display: grid; grid-auto-flow: column; grid-auto-columns: min(82%, 420px); gap: 10px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 1px 10px; -webkit-overflow-scrolling: touch; }
.source-page-link { min-width: 0; display: flex; flex-direction: column; gap: 6px; scroll-snap-align: start; color: var(--blue-700); text-align: center; font-size: 12px; text-decoration: none; }
.question-image { display: block; width: 100%; max-width: 100%; max-height: min(52dvh, 460px); height: auto; margin: 0 auto; border: 1px solid #d8e2ed; border-radius: 10px; object-fit: contain; background: white; }
.question-image-wrap { display: block; width: 100%; margin: 12px auto 4px; }
.question-image-wrap.compact { margin: 12px auto; }
.question-image-wrap.compact .question-image { width: auto; max-width: 100%; max-height: min(34dvh, 260px); }
.question-image-wrap.readable-diagram .question-image { width: auto; max-width: 100%; max-height: none; height: auto; }
.question-image-link { display: block; width: 100%; color: inherit; text-decoration: none; }
.source-page-item { display: block; min-width: 0; }
.image-retry { display: block; width: 100%; min-height: 48px; margin: 8px 0 0; padding: 10px 14px; border: 1px dashed #7aa7d7; border-radius: 10px; color: #174f84; background: #eef6ff; font: inherit; font-weight: 700; cursor: pointer; }
.image-retry[hidden] { display: none; }
.question-image-status, .question-image-hint { display: block; margin-top: 8px; color: #4d627d; font-size: 14px; line-height: 1.6; overflow-wrap: anywhere; }
.question-image-status.is-error { color: #a33b25; }
.question-image-status[hidden] { display: none; }
.blank-line { display: inline-block; width: clamp(3.5em, 18vw, 6em); max-width: 100%; border-bottom: 2px solid currentColor; vertical-align: -.1em; }
.access-note { margin: -8px 0 14px; padding: 10px 12px; color: #76520c; background: #fff7e3; border: 1px solid #f1d899; border-radius: 11px; font-size: 13px; overflow-wrap: anywhere; }
.options { display: grid; gap: 12px; margin: 20px 0 4px; }
.option {
  width: 100%;
  min-height: 58px;
  padding: 13px 14px;
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  gap: 10px;
  text-align: left;
  color: var(--ink);
  background: white;
  border: 1.5px solid #d6deea;
  border-radius: 14px;
  cursor: pointer;
}
.option > * { min-width: 0; }
.option-text { max-width: 100%; overflow-wrap: anywhere; word-break: break-word; }
.option:active { transform: scale(.99); background: #f7faff; }
.option.selected { border-color: var(--blue-600); background: #edf5ff; }
.option.correct { border-color: var(--green-600); background: #eaf8f1; }
.option.wrong { border-color: var(--red-600); background: #fff0f1; }
.option-key { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid #aab5c4; border-radius: 50%; font-weight: 750; }
.option.selected .option-key { color: white; border-color: var(--blue-600); background: var(--blue-600); }
.option.correct .option-key { color: white; border-color: var(--green-600); background: var(--green-600); }
.option.wrong .option-key { color: white; border-color: var(--red-600); background: var(--red-600); }
.answer-panel { margin-top: 18px; padding: 16px; border-radius: 14px; background: #f3f7fc; }
.answer-panel.correct { background: #eaf8f1; }
.answer-panel.wrong { background: #fff1f2; }
.answer-title { display: flex; align-items: center; gap: 8px; font-weight: 800; color: var(--navy-950); }
.answer-panel { min-width: 0; max-width: 100%; overflow: hidden; }
.answer-panel p { margin: 8px 0 0; max-width: 100%; color: #36475e; overflow-wrap: anywhere; word-break: break-word; }
.answer-panel .answer-key { color: var(--blue-600); font-weight: 750; }
.question-actions { display: flex; justify-content: flex-end; margin-top: 12px; }
.practice-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  padding: 10px max(12px, env(safe-area-inset-right)) calc(10px + var(--safe-bottom)) max(12px, env(safe-area-inset-left));
  display: grid;
  grid-template-columns: minmax(74px, .9fr) minmax(118px, 1.65fr) minmax(64px, .78fr);
  gap: 9px;
  background: rgba(255,255,255,.96);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.practice-bar .button { min-width: 0; min-height: 50px; padding: 0 8px; white-space: nowrap; }
.practice-bar .button svg { width: 18px; height: 18px; }
.practice-resume-status { display:flex; align-items:center; justify-content:space-between; gap:14px; margin:0 0 12px; padding:11px 13px; border:1px solid #bdd7f7; border-radius:14px; background:#f4f9ff; }
.practice-resume-status>span { min-width:0; display:flex; flex-direction:column; gap:2px; }
.practice-resume-status strong { color:#174c84; font-size:13px; }
.practice-resume-status small { color:var(--muted); font-size:11px; line-height:1.45; }
.practice-resume-status .button { min-height:38px; padding:0 13px; flex:none; font-size:13px; }

.memory-start-list { display: grid; gap: 10px; }
.memory-start-list > p { margin: 0 0 4px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.memory-start-option { width: 100%; min-height: 72px; padding: 11px 12px; display: grid; grid-template-columns: 42px minmax(0, 1fr) 20px; align-items: center; gap: 11px; text-align: left; color: var(--ink); background: #f8fbff; border: 1px solid #cbdcf1; border-radius: 15px; cursor: pointer; }
.memory-start-option:active { background: #edf5ff; border-color: #8eb8e8; }
.memory-start-option > span:nth-child(2) { min-width: 0; }
.memory-start-option strong, .memory-start-option small { display: block; }
.memory-start-option strong { color: var(--navy-950); font-size: 15px; }
.memory-start-option small { margin-top: 3px; color: var(--muted); font-size: 12px; line-height: 1.4; }
.memory-start-icon { width: 42px; height: 42px; display: grid; place-items: center; color: white; background: var(--navy-900); border-radius: 12px; }
.memory-start-icon svg { width: 22px; height: 22px; }
.memory-mode-note { margin-bottom: 12px; padding: 11px 13px; display: flex; align-items: center; gap: 10px; color: #174f3c; background: #edf9f4; border: 1px solid #adddcb; border-radius: 14px; }
.memory-mode-note > span { width: 36px; height: 36px; flex: none; display: grid; place-items: center; color: white; background: var(--green-600); border-radius: 10px; }
.memory-mode-note svg { width: 20px; height: 20px; }
.memory-mode-note div { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.memory-mode-note strong { font-size: 14px; }
.memory-mode-note small { color: #467064; font-size: 11px; line-height: 1.4; }
.memory-option { grid-template-columns: 34px minmax(0, 1fr) auto; cursor: default; }
.memory-option:active { transform: none; background: white; }
.memory-option.correct:active { background: #eaf8f1; }
.memory-correct-label { align-self: center; padding: 3px 7px; color: #0b6b49; background: #d7f2e5; border-radius: 999px; font-size: 11px; font-weight: 800; }
.memory-answer { background: #f1f7ff; border-left: 4px solid var(--blue-600); }
.memory-answer .answer-title { color: #0f4f91; }
.memory-bar { grid-template-columns: minmax(72px, .8fr) minmax(112px, 1.2fr) minmax(92px, 1fr); }
.memory-review { color: #8a5500; border-color: #c58a28; background: #fffaf0; }

.list-card { overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 18px; }
.list-row { width: 100%; min-height: 62px; padding: 10px 14px; display: flex; align-items: center; gap: 10px; text-align: left; color: var(--ink); background: white; border: 0; border-bottom: 1px solid var(--line); cursor: pointer; }
.list-row:last-child { border-bottom: 0; }
.list-row:active { background: #f5f8fc; }
.list-icon { width: 36px; height: 36px; flex: none; border-radius: 11px; color: var(--blue-600); background: var(--blue-100); display: grid; place-items: center; }
.list-icon svg { width: 21px; height: 21px; }
.list-content { min-width: 0; flex: 1; }
.list-content strong { display: block; font-size: 16px; overflow-wrap: anywhere; }
.list-content span { display: block; color: var(--muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-content .list-row-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.list-row-meta > span { min-width: 0; }
.list-row-meta time { flex: none; color: #53657b; font-size: 12px; font-variant-numeric: tabular-nums; }
.wrong-row { display: flex; align-items: stretch; border-bottom: 1px solid var(--line); background: white; }
.wrong-row:last-child { border-bottom: 0; }
.wrong-row .list-row { flex: 1; min-width: 0; border-bottom: 0; }
.wrong-remove { width: 66px; min-height: 62px; flex: 0 0 66px; display: grid; place-content: center; justify-items: center; gap: 2px; color: #a33b43; background: white; border: 0; border-left: 1px solid var(--line); cursor: pointer; }
.wrong-remove svg { width: 19px; height: 19px; }
.wrong-remove span { font-size: 11px; font-weight: 750; }
.wrong-remove:active { background: #fff1f2; }
.wrong-summary { margin: -2px 0 14px; padding: 11px 12px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; color: #53657b; background: #f8fbff; border: 1px solid var(--line); border-radius: 14px; font-size: 12px; text-align: center; }
.wrong-summary span { min-width: 0; }
.wrong-summary strong { margin-right: 2px; color: var(--navy-950); font-size: 16px; }
.wrong-review-line { margin-top: 5px; display: flex !important; align-items: center; gap: 7px; color: #607086 !important; font-size: 12px !important; white-space: normal !important; }
.wrong-review-status { min-height: 22px; padding: 2px 7px; display: inline-flex !important; align-items: center; flex: none; border-radius: 999px; font-size: 11px !important; font-weight: 800; }
.wrong-review-status.level-0 { color: #a3313a; background: #fff0f1; }
.wrong-review-status.level-1 { color: #8a5500; background: #fff6df; }
.wrong-review-status.level-2 { color: #18589e; background: #eaf3ff; }
.wrong-review-status.level-3 { color: #0b6b49; background: #e5f7ee; }
.wrong-practice-choices { display: grid; gap: 10px; }
.wrong-practice-choice { width: 100%; min-height: 68px; padding: 12px 14px; display: flex; flex-direction: column; justify-content: center; gap: 4px; text-align: left; color: var(--navy-950); background: white; border: 1px solid var(--line); border-radius: 14px; cursor: pointer; }
.wrong-practice-choice:active { background: #f5f8fc; }
.wrong-practice-choice.recommended { border-color: #7bb4f6; background: #f3f8ff; }
.wrong-practice-choice strong { font-size: 15px; }
.wrong-practice-choice strong span { margin-left: 5px; padding: 2px 6px; color: white; background: var(--blue-600); border-radius: 999px; font-size: 10px; vertical-align: 1px; }
.wrong-practice-choice small { color: var(--muted); font-size: 12px; line-height: 1.45; }
.timeline-list { display: grid; gap: 18px; }
.timeline-group { min-width: 0; }
.timeline-heading { margin: 0 2px 8px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--navy-950); font-size: 16px; }
.timeline-heading small { color: var(--muted); font-size: 12px; font-weight: 600; }
.chevron { color: #9aa7b7; }

.profile-card { padding: 14px; background: white; border: 1px solid var(--line); border-radius: 17px; }
.identity { display: flex; align-items: center; gap: 13px; }
.avatar { width: 48px; height: 48px; border-radius: 14px; object-fit: cover; }
.identity strong { display: block; font-size: 19px; }
.identity span { color: var(--muted); font-size: 13px; }
.entitlement { margin-top: 11px; padding: 11px 12px; color: white; background: var(--navy-900); border-radius: 13px; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.entitlement strong { display: block; }
.entitlement span { color: #cfe0f3; font-size: 12px; }
.entitlement > div { min-width: 0; }
.entitlement > svg { width: 28px; height: 28px; flex: 0 0 28px; }
.guest-auth-panel { margin-top: 12px; padding: 13px; background: var(--blue-100); border: 1px solid #c9def8; border-radius: 13px; }
.guest-auth-copy strong, .guest-auth-copy span { display: block; }
.guest-auth-copy strong { color: var(--navy-950); font-size: 15px; }
.guest-auth-copy span { margin-top: 2px; color: #53657b; font-size: 12px; }
.guest-auth-actions { margin-top: 11px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.guest-auth-actions .button { min-width: 0; min-height: 46px; padding-left: 10px; padding-right: 10px; }
.redeem-box { margin-top: 11px; display: grid; grid-template-columns: 1fr 88px; gap: 8px; }
.replay-helper { margin: 0 0 12px; }
.home-page .section-head { margin-top: 17px; }
.bank-page .section-head, .mine-page .section-head { margin-top: 17px; margin-bottom: 9px; }
.mine-page .profile-card + .profile-card { margin-top: 10px; }
.mine-page .stat-strip { margin-top: 10px; }
.purchase-card { padding: 13px 14px 14px; }
.purchase-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.purchase-head h2 { margin: 0; color: var(--navy-950); font-size: 20px; }
.purchase-head span { display: block; margin-top: 1px; color: var(--muted); font-size: 12px; }
.purchase-head > strong { flex: none; color: var(--blue-600); font-size: 23px; }
.purchase-card > p { margin: 8px 0 10px; }
.home-page .hero { margin-top: 0; }
.home-page .bank-card { min-height: 122px; padding: 12px; }
.home-page .bank-card img, .home-page .bank-card.common .common-mark { width: 40px; height: 40px; margin-bottom: 7px; }
.home-page .bank-card.common svg { width: 23px; height: 23px; }
.home-page .bank-card strong { font-size: 16px; }
.home-page .bank-card span { font-size: 12px; }
.field { width: 100%; min-height: 48px; padding: 11px 13px; color: var(--ink); background: white; border: 1px solid #cbd5e2; border-radius: 12px; }
.field::placeholder { color: #8b96a7; }
.form-stack { display: grid; gap: 13px; }
.form-field label { display: block; margin-bottom: 5px; font-size: 14px; font-weight: 700; }
.helper { color: var(--muted); font-size: 12px; }

.analysis-hero { padding: 20px; color: white; background: var(--navy-900); border-radius: 20px; }
.analysis-hero h2 { margin: 0 0 8px; font-size: 21px; }
.analysis-hero p { margin: 0; color: #d6e4f4; }
.weak-list { display: grid; gap: 10px; }
.weak-item { padding: 15px; background: white; border: 1px solid var(--line); border-radius: 14px; }
.weak-line { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.weak-line strong { font-size: 15px; }
.weak-line span { color: var(--red-600); font-weight: 750; }
.recommendation-summary { margin: 16px 0 10px; padding: 12px 14px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #36536f; background: #eef6ff; border: 1px solid #c9def8; border-radius: 13px; font-size: 13px; }
.recommendation-summary strong { color: var(--navy-950); }
.training-size-list { display: grid; gap: 9px; margin-top: 14px; }
.training-size-option { width: 100%; min-height: 64px; padding: 11px 13px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: 14px; text-align: left; cursor: pointer; }
.training-size-option span:first-child { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.training-size-option strong { color: var(--navy-950); font-size: 16px; }
.training-size-option small { color: var(--muted); font-size: 12px; }
.training-size-option.all { border-color: #87b9f3; background: #eef6ff; }
.training-size-option:active { background: #e7f2ff; }
.module-practice-start { display: grid; gap: 15px; }
.module-practice-start .helper { margin: 0; line-height: 1.65; }
.module-practice-start .form-field > span { display: block; margin-bottom: 6px; color: var(--navy-950); font-weight: 750; }
.practice-mode-choices { display: grid; gap: 10px; }
.practice-mode-choice { width: 100%; min-height: 70px; padding: 13px 15px; display: flex; flex-direction: column; justify-content: center; gap: 3px; color: var(--ink); background: white; border: 1px solid var(--line); border-radius: 14px; text-align: left; cursor: pointer; }
.practice-mode-choice strong { color: var(--navy-950); font-size: 16px; }
.practice-mode-choice small { color: var(--muted); line-height: 1.45; }
.practice-mode-choice.timed { border-color: #87b9f3; background: #eef6ff; }
.practice-mode-choice.memory { border-color: #a9ddc9; background: #effaf5; }
.practice-mode-choice:hover, .practice-mode-choice:focus-visible { border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(31,111,235,.12); outline: none; }
.practice-count-field { min-width: 0; margin: 0; padding: 0; border: 0; }
.practice-count-field legend { margin-bottom: 7px; color: var(--navy-950); font-weight: 750; }
.practice-count-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.practice-count-options label { position: relative; min-width: 0; cursor: pointer; }
.practice-count-options input { position: absolute; opacity: 0; pointer-events: none; }
.practice-count-options span { min-height: 44px; display: grid; place-items: center; color: var(--navy-800); background: white; border: 1px solid var(--line); border-radius: 12px; font-weight: 750; }
.practice-count-options input:checked + span { color: white; background: var(--navy-900); border-color: var(--navy-900); }
.practice-count-options input:focus-visible + span { outline: 3px solid rgba(23,111,229,.35); outline-offset: 2px; }
.practice-timer-status { margin: 0 0 12px; padding: 11px 14px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #dcecff; background: var(--navy-900); border-radius: 14px; }
.practice-timer-status span { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.practice-timer-status strong { color: white; font-variant-numeric: tabular-nums; }
.practice-timer-status small { color: #bed2eb; font-size: 12px; }
.practice-timer-status em { flex: none; color: #bed2eb; font-size: 12px; font-style: normal; }
.completion-timing { padding: 11px 13px; color: #234a73; background: #eef6ff; border: 1px solid #c9def8; border-radius: 12px; }
.modal-question-preview { max-height: 128px; margin: 0 0 12px; padding: 12px 13px; overflow: auto; color: var(--navy-950); background: #f6f9fc; border: 1px solid var(--line); border-radius: 12px; font-weight: 700; line-height: 1.55; }
.empty { padding: 42px 22px; text-align: center; color: var(--muted); background: white; border: 1px dashed #c6d1df; border-radius: 18px; }
.empty svg { width: 46px; height: 46px; color: #91a2b8; }
.empty strong { display: block; margin: 8px 0 4px; color: var(--navy-950); font-size: 18px; }

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 35;
  min-height: calc(68px + var(--safe-bottom));
  padding: 6px max(14px, env(safe-area-inset-right)) var(--safe-bottom) max(14px, env(safe-area-inset-left));
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: rgba(255,255,255,.96);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.nav-item { min-height: 58px; border: 0; color: #758196; background: transparent; display: grid; place-content: center; justify-items: center; gap: 2px; font-size: 12px; cursor: pointer; }
.nav-item svg { width: 23px; height: 23px; }
.nav-item[aria-current="page"] { color: var(--blue-600); font-weight: 750; }
.nav-item:active { transform: scale(.94); }
.desktop-nav-brand, .desktop-nav-note { display: none; }
.desktop-nav-links { display: contents; }

.toast { position: fixed; z-index: 100; left: 50%; bottom: calc(86px + var(--safe-bottom)); max-width: calc(100vw - 32px); padding: 11px 16px; color: white; background: rgba(11,35,66,.94); border-radius: 12px; opacity: 0; transform: translate(-50%, 12px); pointer-events: none; transition: opacity 180ms ease, transform 180ms ease; box-shadow: var(--shadow); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.modal { width: min(92vw, 520px); max-height: min(calc(100dvh - 32px), 700px); padding: 0; overflow: hidden; color: var(--ink); background: white; border: 0; border-radius: 20px; box-shadow: 0 20px 60px rgba(4,22,44,.28); }
.modal[open] { display: flex; flex-direction: column; }
.modal::backdrop { background: rgba(5,22,43,.55); backdrop-filter: blur(3px); }
.modal-head { min-height: 58px; flex: 0 0 auto; padding: 7px 10px 7px 18px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.modal-head strong { font-size: 18px; }
.modal-body { min-height: 0; padding: 18px 18px calc(18px + var(--safe-bottom)); overflow-x: hidden; overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; touch-action: pan-y pinch-zoom; scrollbar-gutter: stable; }
.modal-notice { margin: 0 0 14px; padding: 11px 13px; color: #9f232e; background: #fff1f2; border: 1px solid #f2b8bd; border-radius: 12px; font-size: 14px; line-height: 1.5; }
.question-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 9px; }
.question-number { aspect-ratio: 1; border: 1px solid var(--line); border-radius: 10px; color: var(--ink); background: white; cursor: pointer; }
.question-number.answered { color: white; background: var(--blue-600); border-color: var(--blue-600); }
.question-number.correct { color: white; background: var(--green-600); border-color: var(--green-600); }
.question-number.wrong { color: white; background: var(--red-600); border-color: var(--red-600); }
.question-number.current { border: 2px solid var(--blue-600); }
.paper-score-hero { padding: 18px; display: flex; align-items: center; gap: 14px; color: white; background: linear-gradient(125deg, var(--navy-900), #1b609a); border-radius: 20px; }
.paper-score-hero > span { width: 46px; height: 46px; flex: 0 0 46px; display: grid; place-items: center; background: rgba(255,255,255,.13); border-radius: 14px; }
.paper-score-hero svg { width: 25px; height: 25px; }
.paper-score-hero h1 { margin: 0; font-size: 21px; }
.paper-score-hero p { margin: 3px 0 0; color: #dce9f9; font-size: 13px; line-height: 1.55; }
.score-count { color: var(--muted); font-size: 13px; white-space: nowrap; }
.paper-score-list { overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 17px; }
.paper-score-row { width: 100%; min-height: 82px; padding: 13px 14px; display: flex; align-items: center; gap: 12px; color: var(--ink); background: white; border: 0; text-align: left; }
button.paper-score-row { cursor: pointer; }
.paper-score-row + .paper-score-row { border-top: 1px solid var(--line); }
.paper-score-row:active { background: #f4f8fd; }
.paper-score-copy { min-width: 0; flex: 1; }
.paper-score-copy strong, .paper-score-copy small, .paper-score-copy em { display: block; }
.paper-score-copy strong { color: var(--navy-950); font-size: 16px; overflow-wrap: anywhere; }
.paper-score-copy small { margin-top: 2px; color: var(--muted); font-size: 12px; }
.paper-score-copy em { margin-top: 3px; color: #8793a4; font-size: 11px; font-style: normal; }
.paper-score-value { flex: 0 0 auto; min-width: 52px; color: var(--blue-600); text-align: right; font-variant-numeric: tabular-nums; }
.paper-score-value b { font-size: 25px; line-height: 1; }
.paper-score-value small { margin-left: 2px; font-size: 11px; }
.paper-score-row .chevron { flex: 0 0 20px; color: #8ba0b8; }
.legal-note { margin: 24px 4px 0; color: #7b8798; font-size: 12px; }

@media (min-width: 760px) and (max-width: 1099px) {
  .app-shell { max-width: 980px; margin: 0 auto; box-shadow: 0 0 0 1px var(--line), 0 0 48px rgba(17,48,86,.08); }
  .topbar { left: auto; right: auto; width: 100%; transform: none; }
  .bottom-nav { left: 50%; right: auto; width: min(980px, 100%); transform: translateX(-50%); }
  .practice-bar { left: 50%; right: auto; width: min(760px, 100%); transform: translateX(-50%); }
  #main { padding-left: 28px; padding-right: 28px; }
  .page { max-width: 900px; }
  .bank-grid { grid-template-columns: repeat(4, 1fr); }
  .module-list { grid-template-columns: repeat(2, 1fr); }
  .bank-quick-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bank-quick-memory { grid-column: auto; }
  .guest-auth-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .72fr); align-items: center; gap: 18px; }
  .guest-auth-actions { margin-top: 0; }
}

@media (min-width: 1100px) {
  body { background: #eaf0f7; }
  .app-shell {
    max-width: 1360px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 224px minmax(0, 1fr);
    grid-template-rows: 64px minmax(calc(100dvh - 64px), auto);
    background: var(--canvas);
    box-shadow: 0 0 0 1px #d7e0ec, 0 18px 70px rgba(11, 35, 66, .12);
  }
  .app-shell.nav-hidden { grid-template-columns: minmax(0, 1fr); }
  .topbar {
    grid-column: 2;
    grid-row: 1;
    height: 64px;
    padding: 0 28px;
    background: rgba(255, 255, 255, .96);
  }
  .app-shell.nav-hidden .topbar { grid-column: 1; }
  .topbar-title { text-align: left; font-size: 18px; }
  #main {
    grid-column: 2;
    grid-row: 2;
    min-height: calc(100dvh - 64px);
    padding: 28px 34px 48px;
  }
  .app-shell.nav-hidden #main { grid-column: 1; }
  .page { max-width: 1080px; }
  .bottom-nav {
    position: sticky;
    inset: auto;
    top: 0;
    grid-column: 1;
    grid-row: 1 / 3;
    align-self: start;
    width: 224px;
    height: 100dvh;
    min-height: 0;
    padding: 24px 14px 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    color: white;
    background: linear-gradient(180deg, #102f58 0%, #0b2342 100%);
    border: 0;
    backdrop-filter: none;
  }
  .desktop-nav-brand { display: flex; align-items: center; gap: 11px; padding: 0 8px 20px; border-bottom: 1px solid rgba(255,255,255,.14); }
  .desktop-nav-brand img { width: 44px; height: 44px; flex: 0 0 44px; border-radius: 13px; }
  .desktop-nav-brand span { min-width: 0; }
  .desktop-nav-brand strong, .desktop-nav-brand small { display: block; }
  .desktop-nav-brand strong { color: white; font-size: 15px; white-space: nowrap; }
  .desktop-nav-brand small { margin-top: 2px; color: #b9cbe0; font-size: 11px; white-space: nowrap; }
  .desktop-nav-links { display: grid; gap: 8px; }
  .nav-item {
    min-height: 52px;
    padding: 0 15px;
    display: flex;
    place-content: initial;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
    color: #c6d5e7;
    border-radius: 14px;
    font-size: 14px;
  }
  .nav-item svg { width: 22px; height: 22px; }
  .nav-item[aria-current="page"] { color: white; background: rgba(255,255,255,.13); box-shadow: inset 3px 0 0 #65a8ff; }
  .desktop-nav-note { display: block; margin-top: auto; padding: 14px 12px; color: #9fb5ce; border-top: 1px solid rgba(255,255,255,.12); font-size: 11px; line-height: 1.65; }
  .toast { bottom: 28px; }

  .home-page { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr); gap: 16px; align-items: stretch; }
  .home-page .hero { grid-column: 1; min-height: 184px; padding: 24px 28px; display: flex; flex-direction: column; justify-content: center; }
  .home-page .hero h2 { font-size: 28px; }
  .home-page > .stat-strip { grid-column: 2; margin-top: 0; grid-template-columns: 1fr; }
  .home-page > .stat-strip .stat { min-height: 60px; display: grid; place-content: center; }
  .home-page > .stat-strip .stat + .stat::before { left: 22px; right: 22px; top: 0; bottom: auto; width: auto; height: 1px; }
  .home-page > .section-head, .home-page > .bank-grid { grid-column: 1 / -1; }
  .home-page > .section-head { margin-top: 8px; }
  .home-page .bank-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
  .home-page .bank-card { min-height: 142px; padding: 16px; }
  .home-page .bank-card img, .home-page .bank-card.common .common-mark { width: 48px; height: 48px; }

  .bank-page { max-width: 1080px; }
  .scope-tabs { margin-left: 0; margin-right: 0; padding: 0; }
  .bank-page .module-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .bank-page .bank-quick-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bank-page .bank-quick-memory { grid-column: auto; }
  .bank-page .module-card { min-height: 86px; }
  .bank-quick-card { min-height: 84px; }

  .mine-page { max-width: 1080px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 16px; align-items: stretch; }
  .mine-page > .purchase-card, .mine-page > .profile-card { margin: 0; }
  .mine-page .profile-card + .profile-card { margin-top: 0; }
  .mine-page > .stat-strip, .mine-page > .section-head, .mine-page > .list-card, .mine-page > .text-action { grid-column: 1 / -1; }
  .mine-page > .stat-strip { margin-top: 14px; }
  .mine-page > .section-head { margin-top: 20px; }
  .mine-page > .list-card { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
  .mine-page > .list-card .list-row { min-height: 82px; border-bottom: 0; border-right: 1px solid var(--line); }
  .mine-page > .list-card .list-row:last-child { border-right: 0; }
}

@media (max-width: 420px) {
  .modal { width: calc(100vw - 24px); max-height: calc(100dvh - 24px - var(--safe-bottom)); }
  .modal-body { padding: 14px 14px calc(16px + var(--safe-bottom)); }
  .question-grid { gap: 8px; }
  .question-number { min-width: 44px; min-height: 44px; }
  .topbar { height: 48px; padding-left: 10px; padding-right: 10px; }
  #main { padding: 8px 12px calc(82px + var(--safe-bottom)); }
  .brand-row { margin-bottom: 13px; gap: 10px; }
  .brand-row img { width: 46px; height: 46px; }
  .brand-copy p { font-size: 13px; }
  .online-badge { padding: 4px 8px; }
  .hero { padding: 15px 16px; border-radius: 20px 20px 20px 7px; }
  .hero h2 { font-size: clamp(20px, 5.6vw, 23px); }
  .hero p { margin-bottom: 10px; }
  .bank-card { min-height: 126px; padding: 13px; }
  .bank-card img, .bank-card.common .common-mark { width: 44px; height: 44px; }
  .section-head { margin-top: 16px; }
  .bank-section-head { margin-top: 12px; }
  .bank-quick-grid { gap: 8px; margin-top: 9px; }
  .bank-quick-card { min-height: 72px; padding: 10px; gap: 8px; border-radius: 15px; }
  .bank-quick-icon { width: 38px; height: 38px; flex-basis: 38px; border-radius: 11px; }
  .bank-quick-card strong { font-size: 15px; }
  .bank-quick-card small { font-size: 11px; }
  .home-page .bank-card { min-height: 112px; padding: 11px; }
  .mine-page .profile-card + .profile-card { margin-top: 8px; }
  .mine-page .identity { gap: 10px; }
  .mine-page .entitlement { margin-top: 9px; }
  .question-card { padding: 17px 14px; border-radius: 16px; }
  .question-stem { line-height: 1.62; }
  .option { min-height: 54px; padding: 11px 12px; }
  .practice-bar { padding-left: 8px; padding-right: 8px; grid-template-columns: minmax(70px, .86fr) minmax(112px, 1.5fr) minmax(62px, .72fr); gap: 6px; }
  .practice-bar .button { font-size: 14px; }
}

@media (max-width: 350px) {
  #main { padding-left: 9px; padding-right: 9px; }
  .brand-row { flex-wrap: wrap; }
  .online-badge { margin-left: 56px; margin-top: -6px; }
  .topbar-title { font-size: 16px; }
  .icon-button { width: 40px; height: 40px; padding: 9px; }
  .topbar { grid-template-columns: 40px minmax(0, 1fr) 40px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-progress { display: flex; align-items: center; gap: 8px; }
  .stat { padding: 12px 4px; }
  .stat strong { font-size: 20px; }
  .stat span { font-size: 11px; }
  .bank-grid { gap: 8px; }
  .bank-card strong { font-size: 16px; }
  .bank-quick-card { min-height: 68px; padding: 9px 8px; }
  .bank-quick-icon { width: 34px; height: 34px; flex-basis: 34px; }
  .bank-quick-card .chevron { display: none; }
  .question-card { padding: 14px 10px; }
  .option { grid-template-columns: 30px minmax(0, 1fr); gap: 8px; padding: 10px 9px; }
  .option-key { width: 30px; height: 30px; }
  .practice-bar { grid-template-columns: minmax(64px, .8fr) minmax(104px, 1.5fr) minmax(58px, .72fr); padding-left: 6px; padding-right: 6px; }
  .practice-bar .button { padding: 0 5px; font-size: 13px; }
  .guest-auth-actions { grid-template-columns: 1fr; }
}

@media (max-height: 560px) and (orientation: landscape) {
  .topbar { height: 48px; }
  #main { padding-top: 10px; }
  .practice-bar .button { min-height: 44px; }
}

@media (hover: hover) {
  .button:hover { filter: brightness(.97); }
  .icon-button:hover, .nav-item:hover { background: var(--blue-100); }
  .bank-card:hover, .module-card:hover { border-color: #a9c9f0; box-shadow: 0 7px 20px rgba(17, 48, 86, .09); }
  .list-row:hover { background: #f5f8fc; }
}

@media (min-width: 1100px) and (hover: hover) {
  .bottom-nav .nav-item:hover { color: white; background: rgba(255,255,255,.1); }
  .bottom-nav .nav-item[aria-current="page"]:hover { background: rgba(255,255,255,.16); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
/* 模拟考试：与普通逐题练习保持清晰的模式边界 */
.mock-home-card{width:100%;display:flex;align-items:center;gap:14px;margin:18px 0;padding:18px;border:1px solid #c8daf2;border-radius:18px;background:linear-gradient(135deg,#edf5ff,#fff);color:var(--ink);text-align:left}
.mock-home-card>span:nth-child(2){display:flex;flex:1;flex-direction:column;gap:4px}.mock-home-card strong{font-size:18px}.mock-home-card small{color:var(--muted);line-height:1.45}
.mock-home-icon{display:grid;width:48px;height:48px;place-items:center;border-radius:14px;background:#123d72;color:#fff}.mock-home-icon svg{width:25px}
.home-release-announcement{width:100%;display:grid;grid-template-columns:44px minmax(0,1fr) 22px;align-items:center;gap:13px;margin:14px 0 4px;padding:14px 16px;border:1px solid #9fc5f6;border-radius:17px;background:linear-gradient(135deg,#e8f3ff 0%,#fff 74%);color:var(--navy-950);text-align:left;box-shadow:0 8px 22px rgba(18,61,114,.07)}
.home-release-announcement>span:nth-child(2){min-width:0;display:flex;flex-direction:column;gap:2px}.home-release-announcement small{color:#176fe5;font-size:11px;font-style:normal;font-weight:800}.home-release-announcement strong{font-size:16px;line-height:1.4}.home-release-announcement em{color:var(--muted);font-size:12px;font-style:normal;line-height:1.45}.home-release-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:13px;background:#123d72;color:#fff}.home-release-icon svg{width:24px}.home-release-announcement>.chevron{color:#6d86a5}
.mock-grid{display:grid;gap:16px}.mock-card{padding:20px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 10px 28px rgba(18,61,114,.06)}
.mock-resume-card{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0 0 16px;padding:16px 18px;border:1px solid #9fc5f6;border-radius:18px;background:linear-gradient(135deg,#eaf4ff,#fff);box-shadow:0 10px 28px rgba(18,61,114,.08)}
.mock-resume-card>div{min-width:0;display:flex;flex:1;flex-direction:column;gap:4px}.mock-resume-card span{color:#176fe5;font-size:12px;font-weight:800}.mock-resume-card strong{color:var(--navy-950);font-size:18px;line-height:1.35}.mock-resume-card small{color:var(--muted);font-size:13px}.mock-resume-card .button{flex:none}
.home-resume-section{margin:2px 0 4px}.home-resume-section .section-head{margin-top:16px}.home-resume-grid{display:grid;gap:10px}.home-resume-card{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border:1px solid #a9cdf7;border-radius:17px;background:linear-gradient(135deg,#edf6ff,#fff);box-shadow:0 8px 22px rgba(18,61,114,.06)}.home-resume-card>div{min-width:0;display:flex;flex:1;flex-direction:column;gap:3px}.home-resume-card span{color:#176fe5;font-size:11px;font-weight:800}.home-resume-card strong{overflow:hidden;color:var(--navy-950);font-size:16px;text-overflow:ellipsis;white-space:nowrap}.home-resume-card small{color:var(--muted);font-size:12px}.home-resume-card .button{min-height:40px;padding:0 14px;flex:none}
.mock-card-head{display:flex;flex-direction:column;gap:6px}.mock-card-head span{font-size:13px;color:var(--blue-600);font-weight:700}.mock-card-head strong{font-size:20px}
.mock-meta{display:flex;gap:8px;margin:14px 0}.mock-meta span,.mock-sections span{padding:6px 9px;border-radius:999px;background:#edf5ff;color:#24476d;font-size:12px}
.mock-sections{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px}.empty.compact{min-height:0;padding:28px 20px}
.exam-status{position:sticky;top:64px;z-index:5;display:flex;align-items:center;justify-content:space-between;margin:-4px 0 12px;padding:10px 14px;border:1px solid #c8daf2;border-radius:14px;background:rgba(255,255,255,.96);box-shadow:0 6px 18px rgba(18,61,114,.08)}
.exam-timer{font-variant-numeric:tabular-nums;color:#123d72;font-size:20px}.exam-timer.warning{color:#c9363e}
.result-hero{display:flex;flex-direction:column;align-items:center;padding:30px 20px;border-radius:22px;background:#123d72;color:#fff}.result-hero>strong{font-size:72px;line-height:1.1}.result-hero small{opacity:.82}
.mock-review-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.mock-review-filter{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px 16px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--muted);font:inherit;font-size:14px;font-weight:700;cursor:pointer}.mock-review-filter.is-active{border-color:var(--navy-900);background:var(--navy-900);color:#fff}.mock-review-filter:focus-visible{outline:3px solid var(--blue-600);outline-offset:3px}.mock-review-filter span{font-variant-numeric:tabular-nums}.mock-review-head span.is-correct{color:var(--green-600);background:#eaf8f1}.mock-review-head span.is-unanswered{color:var(--muted);background:var(--canvas)}
.breakdown-list{margin-bottom:20px;border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}.breakdown-row{display:flex;align-items:center;justify-content:space-between;padding:15px 17px;border-bottom:1px solid var(--line)}.breakdown-row:last-child{border-bottom:0}.breakdown-row>span{display:flex;flex-direction:column;gap:3px}.breakdown-row small{color:var(--muted)}.breakdown-row b{color:#176fe5;font-size:20px}
.mock-review-list{display:grid;gap:14px;margin-bottom:18px}.mock-review-card{min-width:0;padding:16px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 10px 24px rgba(14,43,78,.06)}.mock-review-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.mock-review-head span{padding:4px 9px;border-radius:999px;color:#b4232f;background:#fff1f2;font-size:12px;font-weight:800}.mock-review-head strong{min-width:0;color:var(--muted);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mock-review-card h3{margin:0 0 12px;color:var(--navy-950);font-size:17px;line-height:1.55;overflow-wrap:anywhere;word-break:break-word}.mock-review-options{display:grid;gap:9px}.mock-review-option{display:grid;grid-template-columns:30px minmax(0,1fr);gap:9px;align-items:start;padding:10px;border:1px solid #d8e1ec;border-radius:13px;background:#fbfdff}.mock-review-option span{width:30px;height:30px;display:grid;place-items:center;border:1px solid #aab5c4;border-radius:50%;font-weight:800}.mock-review-option p{margin:3px 0 0;color:#263a53;line-height:1.5;overflow-wrap:anywhere;word-break:break-word}.mock-review-option.correct{border-color:var(--green-600);background:#eefaf4}.mock-review-option.correct span{color:#fff;border-color:var(--green-600);background:var(--green-600)}.mock-review-option.wrong{border-color:var(--red-600);background:#fff1f2}.mock-review-option.wrong span{color:#fff;border-color:var(--red-600);background:var(--red-600)}.empty.small{padding:24px 18px}
@media (min-width:760px){.mock-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (min-width:760px){.home-resume-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.mock-resume-card{align-items:stretch;flex-direction:column;gap:12px}.mock-resume-card .button{width:100%}.home-resume-card{align-items:stretch;flex-direction:column;gap:10px}.home-resume-card .button{width:100%}.practice-resume-status{align-items:stretch;flex-direction:column;gap:9px}.practice-resume-status .button{width:100%}}

/* 时政与企业文化学习中心 */
.learning-entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:12px 0 2px}
.learning-entry{position:relative;min-height:104px;padding:16px 46px 15px 17px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:3px;overflow:hidden;border:1px solid #c5d9f3;border-radius:18px;background:linear-gradient(135deg,#eaf4ff 0%,#fff 78%);color:var(--navy-950);text-align:left;box-shadow:0 8px 22px rgba(18,61,114,.06)}
.learning-entry.culture-entry{border-color:#d9d0f2;background:linear-gradient(135deg,#f2eeff 0%,#fff 78%)}
.learning-entry::after{content:"";position:absolute;right:-22px;bottom:-35px;width:92px;height:92px;border:16px solid rgba(23,111,229,.08);border-radius:50%}
.learning-entry.culture-entry::after{border-color:rgba(118,86,201,.08)}
.learning-entry-kicker{color:#176fe5;font-size:11px;font-weight:800;letter-spacing:.04em}.culture-entry .learning-entry-kicker{color:#6c4eb7}
.learning-entry strong{font-size:18px;line-height:1.35}.learning-entry small{color:var(--muted);font-size:12px;line-height:1.45}
.learning-entry>.chevron{position:absolute;right:16px;top:50%;z-index:1;transform:translateY(-50%);color:#6d86a5}
.learning-page{max-width:920px}.learning-hero{position:relative;padding:22px 24px;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,#123d72,#1c63a0);color:#fff;box-shadow:0 14px 32px rgba(18,61,114,.14)}
.learning-hero.culture{background:linear-gradient(135deg,#3f3274,#7358b8)}.learning-hero>span{font-size:12px;font-weight:800;letter-spacing:.08em;opacity:.8}.learning-hero h1{margin:6px 0 5px;font-size:25px}.learning-hero p{max-width:680px;margin:0;color:rgba(255,255,255,.82);font-size:13px;line-height:1.65}
.learning-hero>div{position:absolute;right:24px;top:22px;display:flex;flex-direction:column;align-items:flex-end}.learning-hero>div strong{font-size:28px;line-height:1}.learning-hero>div span{margin-top:5px;font-size:11px;opacity:.75}
.learning-tabs{display:flex;gap:7px;margin:14px 0 12px;padding-bottom:2px;overflow-x:auto;scrollbar-width:none}.learning-tabs::-webkit-scrollbar{display:none}
.learning-tabs button{flex:none;min-height:36px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#54677e;font-size:13px;font-weight:700}.learning-tabs button[aria-selected="true"]{border-color:#123d72;background:#123d72;color:#fff}
.learning-list{display:grid;gap:10px}.learning-card{padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 6px 18px rgba(18,61,114,.045)}.learning-card.official{border-color:#b9d6f7;background:#f8fbff}
.learning-card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:7px;color:#60738b;font-size:11px}.learning-card-meta span{font-weight:800;color:#31577e}
.learning-card details summary{position:relative;padding-right:24px;color:var(--navy-950);font-size:15px;font-weight:800;line-height:1.55;cursor:pointer;list-style:none}.learning-card details summary::-webkit-details-marker{display:none}.learning-card details summary::after{content:"＋";position:absolute;right:0;top:0;color:#7b8da3}.learning-card details[open] summary::after{content:"－"}
.learning-card details p{margin:11px 0 8px;padding-top:10px;border-top:1px dashed #d6e0eb;color:#324960;font-size:14px;line-height:1.75}.learning-card details small{display:block;color:#718297;font-size:11px;line-height:1.5}.learning-card details small a{color:#176fe5;font-weight:700;text-decoration:none}
.learning-loading{padding:40px 20px;text-align:center;color:var(--muted)}.learning-more{margin:14px 0 0}
@media (max-width:520px){.learning-entry-grid{grid-template-columns:1fr}.learning-entry{min-height:84px;padding-top:12px;padding-bottom:12px}.learning-hero{padding:18px}.learning-hero h1{max-width:72%;font-size:21px}.learning-hero p{padding-top:12px}.learning-hero>div{right:18px;top:18px}.learning-hero>div strong{font-size:24px}.learning-card{padding:12px 13px}.learning-card details summary{font-size:14px}}
@media (min-width:900px){.learning-list{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.learning-card{min-height:114px}.learning-entry{min-height:110px}}
.question-image-wrap.inline-formula { display: inline-block; width: auto; margin: 0 .15em; vertical-align: middle; }
.question-image-wrap.inline-formula .question-image-link { display: inline-block; }
.question-image-wrap.inline-formula .question-image { width: auto; height: 1.8em; max-height: none; max-width: none; object-fit: contain; border-radius: 0; }