@font-face {
  font-family: "Edmund Serif TC";
  src: url("fonts/NotoSerifTC-VariableFont_wght.ttf") format("truetype");
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
}

/* IELTS exam practice */
.choice-grid.parts-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.choice-card.exam-practice-choice {
  color: #fff;
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 186, 92, .28), transparent 18rem),
    linear-gradient(135deg, #4b2115 0%, #9d4e25 52%, #db9147 100%);
  box-shadow: 0 24px 55px rgba(91, 42, 20, .22);
}

.choice-card.exam-practice-choice .card-number,
.choice-card.exam-practice-choice small {
  color: rgba(255, 246, 229, .82);
}

.choice-card.exam-practice-choice strong,
.choice-card.exam-practice-choice::after {
  color: #fff8ec;
}

.choice-card.exam-practice-choice:hover,
.choice-card.exam-practice-choice:focus-visible {
  border-color: rgba(255, 213, 154, .7);
  box-shadow: 0 30px 62px rgba(91, 42, 20, .3);
}

.exam-mode-panel,
.exam-practice-view {
  width: min(1180px, 100%);
  margin-inline: auto;
}

.exam-practice-cover {
  position: relative;
  overflow: hidden;
  margin: 0 0 clamp(24px, 4vw, 48px);
  border: 1px solid rgba(119, 74, 42, .18);
  border-radius: clamp(22px, 3vw, 38px);
  background: #24150d;
  box-shadow: 0 30px 72px rgba(77, 43, 22, .2);
}

.exam-practice-cover::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 18%;
  pointer-events: none;
  background: linear-gradient(transparent, rgba(24, 13, 8, .18));
}

.exam-practice-cover img {
  display: block;
  width: 100%;
  height: auto;
}

.exam-practice-view .exam-practice-cover {
  height: clamp(180px, 28vw, 360px);
}

.exam-practice-view .exam-practice-cover img {
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
}

.exam-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.exam-mode-card {
  display: grid;
  min-height: 168px;
  align-content: space-between;
  gap: 14px;
  border: 1px solid rgba(103, 63, 34, .15);
  border-radius: 24px;
  padding: clamp(20px, 3vw, 30px);
  color: #2c1b12;
  text-align: left;
  background:
    radial-gradient(circle at 100% 0, rgba(218, 145, 71, .2), transparent 16rem),
    rgba(255, 252, 246, .9);
  box-shadow: 0 18px 42px rgba(78, 50, 31, .1);
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.exam-mode-card:hover,
.exam-mode-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(174, 91, 37, .45);
  box-shadow: 0 24px 50px rgba(92, 48, 24, .16);
}

.exam-mode-card > span,
.exam-mode-card small {
  color: #8a5a3d;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.exam-mode-card strong {
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(22px, 2.4vw, 31px);
  line-height: 1.25;
}

.exam-mode-card.access-locked {
  opacity: .52;
  cursor: not-allowed;
}

.exam-natural-toggle {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 4px 18px;
  width: 100%;
  margin: 0 0 22px;
  border: 2px solid rgba(113, 77, 53, .2);
  border-radius: 24px;
  padding: 19px 22px;
  color: #593a28;
  text-align: left;
  background: rgba(255, 252, 247, .92);
  box-shadow: 0 16px 36px rgba(78, 50, 31, .09);
  cursor: pointer;
}

.exam-natural-toggle > span {
  font-size: 16px;
  font-weight: 900;
}

.exam-natural-toggle > strong {
  grid-row: span 2;
  min-width: 74px;
  border-radius: 999px;
  padding: 10px 16px;
  color: #fff;
  font-size: 15px;
  letter-spacing: .08em;
  text-align: center;
  text-transform: uppercase;
  background: #8b8179;
}

.exam-natural-toggle > small {
  color: #806957;
  line-height: 1.5;
}

.exam-natural-toggle.is-on {
  border-color: rgba(86, 83, 166, .42);
  background: linear-gradient(135deg, #f8f8ff, #ecebff);
}

.exam-natural-toggle.is-on > strong {
  background: #5853a6;
}

.exam-natural-toggle:disabled {
  opacity: .68;
  cursor: wait;
}

.exam-progress-card {
  display: grid;
  grid-template-columns: minmax(180px, auto) 1fr auto;
  align-items: center;
  gap: 18px;
  margin-bottom: 24px;
  border: 1px solid rgba(52, 74, 103, .13);
  border-radius: 22px;
  padding: 18px 22px;
  background: rgba(255, 255, 255, .8);
  box-shadow: 0 14px 34px rgba(50, 52, 64, .08);
}

.exam-progress-card > div:first-child {
  display: grid;
  gap: 4px;
}

.exam-progress-card > div:first-child span,
.exam-progress-card > small {
  color: #86604a;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .04em;
}

.exam-progress-card time {
  color: #51428d;
  font-variant-numeric: tabular-nums;
  font-weight: 950;
}

.exam-progress-card > div:first-child strong {
  color: #172a44;
  font-size: 16px;
}

.exam-progress-meter {
  width: 100%;
  overflow: hidden;
  height: 10px;
  border: 0;
  border-radius: 999px;
  background: #e8ded4;
  appearance: none;
  -webkit-appearance: none;
}

.exam-progress-meter::-webkit-progress-bar {
  border-radius: inherit;
  background: #e8ded4;
}

.exam-progress-meter::-webkit-progress-value {
  border-radius: inherit;
  background: linear-gradient(90deg, #c56c32, #edb05e);
}

.exam-progress-meter::-moz-progress-bar {
  border-radius: inherit;
  background: linear-gradient(90deg, #c56c32, #edb05e);
}

.exam-question-stage {
  display: grid;
  gap: 20px;
}

.exam-question-card {
  --part1-pop-offset: 68px;
  overflow: hidden;
  border: 1px solid rgba(89, 87, 154, .2);
  border-radius: clamp(24px, 4vw, 38px) clamp(24px, 4vw, 38px) 10px clamp(24px, 4vw, 38px);
  padding: clamp(24px, 5vw, 52px);
  color: #fff;
  background:
    radial-gradient(circle at 92% 0, rgba(178, 125, 255, .25), transparent 24rem),
    linear-gradient(135deg, #071e47 0%, #19356f 56%, #4a1e72 100%);
  box-shadow: 0 28px 64px rgba(19, 31, 74, .2);
  transform-origin: right center;
}

.exam-question-card.is-entering {
  animation: part1-pop-from-right .9s cubic-bezier(.16, .74, .2, 1) both;
}

.exam-question-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 30px);
  color: #cde3ff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
}

.exam-question-meta small {
  color: rgba(255, 255, 255, .68);
  font-size: 11px;
}

.exam-question-card h1 {
  max-width: 980px;
  margin: 0;
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(30px, 5vw, 58px);
  font-weight: 650;
  line-height: 1.14;
  text-wrap: balance;
}

.exam-question-card > p:not(.exam-cue-topic) {
  max-width: 900px;
  margin: 22px 0 0;
  color: #deedff;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 650;
  line-height: 1.7;
}

.exam-part3-question {
  background:
    radial-gradient(circle at 92% 0, rgba(79, 197, 185, .22), transparent 24rem),
    linear-gradient(135deg, #082d34 0%, #135262 55%, #16456c 100%);
}

.exam-prep-timer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid rgba(178, 90, 36, .2);
  border-radius: 22px;
  padding: 18px 24px;
  color: #6d3119;
  background: linear-gradient(135deg, #fff8eb, #f5dbc0);
  box-shadow: 0 16px 36px rgba(102, 55, 25, .1);
}

.exam-prep-skip-button {
  flex: 0 0 100%;
  border: 0;
  border-top: 1px solid rgba(109, 49, 25, .14);
  padding: 13px 0 0;
  color: #5d3d8d;
  font: inherit;
  font-size: 13px;
  font-weight: 900;
  text-align: right;
  background: transparent;
  cursor: pointer;
}

.exam-prep-skip-button:hover:not(:disabled) {
  color: #38215f;
  text-decoration: underline;
}

.exam-prep-timer span {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .06em;
}

.exam-prep-timer strong {
  min-width: 98px;
  font-variant-numeric: tabular-nums;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1;
  text-align: right;
}

.exam-cue-card {
  border-radius: clamp(24px, 4vw, 36px);
  color: #241a13;
  background:
    linear-gradient(90deg, transparent 0 42px, rgba(189, 87, 57, .16) 42px 44px, transparent 44px),
    repeating-linear-gradient(#fffdf7 0 42px, #e8dfd4 43px, #fffdf7 44px);
  box-shadow: 0 28px 64px rgba(72, 47, 31, .18);
}

.exam-cue-card .exam-question-meta {
  color: #885139;
}

.exam-cue-card > p:not(.exam-cue-topic) {
  color: #68493a;
}

.exam-cue-edmund-logo {
  display: block;
  width: clamp(112px, 14vw, 168px);
  height: auto;
  opacity: .78;
}

.exam-cue-topic {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 0 0 14px;
  color: #a1582e;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.exam-cue-topic span {
  color: #775849;
  text-transform: none;
}

.exam-cue-hints {
  margin-top: 32px;
  border-top: 2px solid rgba(130, 76, 45, .16);
  padding-top: 24px;
}

.exam-cue-hints > strong {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: #7d3e22;
  font-size: 16px;
}

.exam-cue-hints > strong span {
  color: #795c4d;
}

.exam-cue-hints ul {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
  padding-left: 24px;
}

.exam-cue-hints li {
  padding-left: 5px;
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 650;
  line-height: 1.45;
}

.exam-cue-hints li small {
  display: block;
  margin-top: 4px;
  color: #795f51;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
}

.exam-ppf-hint {
  margin-top: 28px;
  border: 1px solid rgba(105, 89, 44, .2);
  border-radius: 18px;
  padding: 20px;
  background: rgba(239, 220, 132, .25);
}

.exam-ppf-hint strong {
  color: #78561b;
  font-size: 12px;
  letter-spacing: .08em;
}

.exam-ppf-hint p {
  margin: 10px 0 0;
  color: #503f29;
  font-size: 15px;
  line-height: 1.7;
}

.exam-answer-recorder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  border: 1px solid rgba(87, 109, 126, .15);
  border-radius: 26px;
  padding: clamp(22px, 4vw, 34px);
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 20px 48px rgba(46, 54, 66, .1);
}

.exam-answer-recorder > div:first-child > p {
  margin: 8px 0;
  color: #576476;
  line-height: 1.6;
}

.exam-answer-recorder .recording-preview,
.exam-answer-recorder [data-exam-proceed-slot] {
  grid-column: 1 / -1;
}

.exam-answer-recorder.is-saved {
  border-color: rgba(42, 136, 93, .22);
  background: linear-gradient(135deg, #f4fff8, #e7f8ee);
}

.exam-complete-card {
  max-width: 820px;
  margin: 0 auto;
  border: 1px solid rgba(52, 129, 91, .18);
  border-radius: 34px;
  padding: clamp(32px, 6vw, 64px);
  text-align: center;
  background: linear-gradient(145deg, #fff, #edfbf3);
  box-shadow: 0 30px 70px rgba(43, 91, 67, .14);
}

.exam-complete-card > span {
  display: inline-grid;
  width: 68px;
  height: 68px;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 50%;
  color: #fff;
  background: #2a8c5c;
  font-size: 34px;
}

.exam-complete-card h1 {
  margin: 8px 0 14px;
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(34px, 5vw, 54px);
}

.exam-total-duration {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  border: 1px solid rgba(58, 91, 142, .16);
  border-radius: 999px;
  padding: 10px 16px;
  color: #243d63;
  background: rgba(255, 255, 255, .78);
  font-variant-numeric: tabular-nums;
}

.exam-complete-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.exam-examiner-panel,
.exam-rating-card {
  overflow: hidden;
  border: 1px solid rgba(48, 75, 113, .16);
  border-radius: 30px;
  padding: clamp(26px, 5vw, 48px);
  background:
    radial-gradient(circle at 100% 0, rgba(91, 132, 196, .14), transparent 22rem),
    rgba(255, 255, 255, .9);
  box-shadow: 0 24px 58px rgba(42, 58, 85, .12);
}

.exam-examiner-panel > h1,
.exam-rating-card > h1 {
  margin: 8px 0 24px;
  color: #172a44;
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(30px, 4.6vw, 50px);
  line-height: 1.16;
}

.examiner-conversation {
  display: grid;
  gap: 16px;
}

.examiner-message {
  --part1-pop-offset: 64px;
  display: block;
  max-width: 880px;
  margin-left: auto;
  border-radius: 26px 26px 7px 26px;
  padding: 18px 22px;
  color: #fff;
  background: linear-gradient(135deg, #112b57, #344f8c 62%, #5a347a);
  box-shadow: 0 18px 38px rgba(22, 41, 78, .2);
}

.examiner-message.is-entering,
.examiner-conversation > [data-exam-exchange-message] > .examiner-message.is-entering {
  animation: part1-pop-from-right .86s cubic-bezier(.16, .74, .2, 1) both;
}

.examiner-message p {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 600;
  line-height: 1.45;
}

.exam-intro-skip-control {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 20px;
  border-top: 1px solid rgba(45, 69, 101, .12);
  padding-top: 16px;
  color: #647188;
  font-size: 12px;
  font-weight: 800;
}

.exam-intro-skip-control button {
  border: 0;
  padding: 4px;
  color: #6b3e85;
  font: inherit;
  text-decoration: underline;
  background: transparent;
  cursor: pointer;
}

.exam-intro-answer {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.exam-candidate-tip {
  display: grid;
  gap: 8px;
  border: 1px solid rgba(187, 119, 36, .18);
  border-radius: 22px;
  padding: 22px 24px;
  background: linear-gradient(135deg, #fffaf0, #f8e8c7);
  box-shadow: 0 15px 34px rgba(104, 68, 25, .09);
}

.exam-candidate-tip > span {
  color: #8b5b25;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
}

.exam-candidate-tip > strong {
  color: #4a2f17;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
}

.exam-candidate-tip > p {
  margin: 0;
  color: #745a3d;
}

.exam-part2-ready-message {
  margin: 4px 0;
}

.exam-rating-card {
  max-width: 900px;
  margin-inline: auto;
  text-align: center;
}

.exam-rating-card > p:not(.eyebrow) {
  color: #657086;
  line-height: 1.7;
}

.exam-nervousness-scale {
  display: flex;
  justify-content: center;
  gap: clamp(9px, 2vw, 18px);
  overflow-x: auto;
  margin: 32px 0 20px;
  padding: 8px 4px 14px;
}

.exam-rating-circle {
  flex: 0 0 auto;
  display: grid;
  width: clamp(48px, 7vw, 68px);
  height: clamp(48px, 7vw, 68px);
  place-items: center;
  border: 2px solid #8b97a9;
  border-radius: 50%;
  color: #34435a;
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 900;
  background: #fff;
  box-shadow: 0 9px 20px rgba(39, 54, 76, .09);
  cursor: pointer;
  transition: transform .2s ease, color .2s ease, border-color .2s ease, background .2s ease;
}

.exam-rating-circle:hover,
.exam-rating-circle:focus-visible {
  transform: translateY(-3px);
  border-color: #16835a;
}

.exam-rating-circle.is-selected {
  border-color: #16835a;
  color: #fff;
  background: #16835a;
  box-shadow: 0 12px 28px rgba(22, 131, 90, .28);
}

.exam-rating-status {
  min-height: 24px;
  font-size: 13px;
  font-weight: 800;
}

.exam-review-heading {
  margin-bottom: 28px;
}

.exam-review-list {
  overflow: hidden;
  border: 1px solid rgba(45, 66, 95, .13);
  border-radius: 28px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 22px 54px rgba(40, 55, 77, .1);
}

.exam-review-list-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 26px;
  border-bottom: 1px solid rgba(45, 66, 95, .1);
  background: #f8f6f2;
}

.exam-review-list-heading span,
.saved-exam-rating span {
  color: #8c5c3d;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
}

.exam-review-list-heading h2 {
  margin: 5px 0 0;
  color: #1e3048;
  font-size: 26px;
}

.exam-review-list-heading p {
  max-width: 480px;
  margin: 0;
  color: #687486;
  line-height: 1.6;
}

.exam-review-part {
  padding: 24px;
}

.exam-review-part + .exam-review-part {
  border-top: 1px solid rgba(45, 66, 95, .1);
}

.exam-review-part > h2 {
  margin: 0 0 14px;
  color: #9a532a;
  font-size: 18px;
}

.exam-review-part > div,
.exam-review-question-stack {
  display: grid;
  gap: 12px;
}

.exam-review-question {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  border: 1px solid rgba(55, 76, 106, .11);
  border-radius: 18px;
  padding: 17px;
  background: #fff;
}

.exam-review-order {
  display: grid;
  min-width: 46px;
  color: #7d4a2d;
  text-align: center;
}

.exam-review-order span {
  font-size: 9px;
  font-weight: 900;
}

.exam-review-order strong {
  font-size: 20px;
}

.exam-review-copy > span {
  color: #8b6c58;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: .05em;
}

.exam-skipped-badge {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 7px;
  color: #68469b;
  background: #eee8fb;
  font-size: 10px;
}

.exam-review-copy h3 {
  margin: 5px 0;
  color: #23364f;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.4;
}

.exam-review-copy p,
.exam-review-copy ul {
  margin: 5px 0 0;
  color: #6b7687;
  font-size: 13px;
  line-height: 1.6;
}

.exam-review-copy li small {
  display: block;
}

.exam-review-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.exam-review-source-link {
  border: 0;
  padding: 8px;
  color: #1769aa;
  font-size: 12px;
  font-weight: 850;
  text-decoration: underline;
  background: transparent;
  cursor: pointer;
}

.exam-review-source-link:disabled {
  color: #8b919a;
  text-decoration: none;
  cursor: not-allowed;
}

.exam-review-bookmark {
  position: static;
  flex: 0 0 auto;
}

.saved-exam-reflection {
  display: grid;
  gap: 14px;
  border-top: 1px solid rgba(171, 102, 50, .12);
  border-bottom: 1px solid rgba(171, 102, 50, .12);
  padding: 16px 20px;
  background: rgba(255, 255, 255, .65);
}

.saved-exam-rating {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.saved-exam-rating strong {
  color: #246a4d;
}

.saved-exam-questions > summary {
  color: #1769aa;
  font-size: 13px;
  font-weight: 850;
  cursor: pointer;
}

.saved-exam-questions .exam-review-question-stack {
  margin-top: 14px;
}

.recording-library-box {
  overflow: hidden;
  border: 1px solid rgba(69, 82, 105, .13);
  border-radius: 26px;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 44px rgba(45, 53, 66, .08);
}

.recording-library-box + .recording-library-box {
  margin-top: 24px;
}

.recording-library-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 24px;
  border-bottom: 1px solid rgba(66, 78, 97, .1);
  background: rgba(248, 246, 242, .78);
}

.recording-library-heading h2 {
  margin: 3px 0 0;
  font-size: 24px;
}

.recording-library-heading > span {
  color: #79563f;
  font-size: 12px;
  font-weight: 850;
}

.recording-library-empty {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 26px;
  color: #687386;
}

.recording-library-empty span {
  font-size: 28px;
}

.exam-attempt-groups,
.regular-attempt-list {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.exam-attempt-group {
  overflow: hidden;
  border: 1px solid rgba(171, 102, 50, .16);
  border-radius: 20px;
  background: #fffaf4;
}

.exam-attempt-group > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
  cursor: pointer;
  list-style: none;
}

.exam-attempt-group > summary::-webkit-details-marker {
  display: none;
}

.exam-attempt-group > summary span {
  display: grid;
  gap: 5px;
}

.exam-attempt-group > summary strong {
  color: #442719;
  font-size: 17px;
}

.exam-attempt-group > summary small {
  color: #805e48;
  font-size: 12px;
  font-weight: 700;
}

.exam-attempt-group > summary em {
  color: #a3562d;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.exam-attempt-group[open] > summary {
  border-bottom: 1px solid rgba(171, 102, 50, .14);
  background: #fff4e7;
}

.exam-attempt-recordings {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.exam-attempt-group-tools {
  display: flex;
  justify-content: flex-end;
  padding: 14px 16px 0;
}

.exam-skip-question-button {
  color: #5d3d8d;
  border-color: rgba(93, 61, 141, .25);
  background: #faf7ff;
}

@media (max-width: 820px) {
  .choice-grid.parts-grid,
  .exam-mode-grid {
    grid-template-columns: 1fr;
  }

  .exam-progress-card,
  .exam-answer-recorder {
    grid-template-columns: 1fr;
  }

  .exam-progress-card > small {
    display: none;
  }

  .exam-question-meta,
  .exam-review-list-heading,
  .recording-library-heading,
  .exam-attempt-group > summary {
    align-items: flex-start;
    flex-direction: column;
  }

  .exam-prep-timer {
    align-items: flex-start;
  }

  .exam-prep-timer strong {
    min-width: 78px;
  }

  .exam-cue-card {
    background:
      linear-gradient(90deg, transparent 0 23px, rgba(189, 87, 57, .14) 23px 25px, transparent 25px),
      repeating-linear-gradient(#fffdf7 0 42px, #e8dfd4 43px, #fffdf7 44px);
  }

  .exam-review-question {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .exam-review-actions {
    grid-column: 1 / -1;
    justify-content: space-between;
  }

  .exam-natural-toggle {
    grid-template-columns: 1fr auto;
  }
}

@media (max-width: 540px) {
  .exam-rating-card {
    padding-inline: 20px;
  }

  .exam-nervousness-scale {
    justify-content: space-between;
    gap: 3px;
    overflow-x: visible;
  }

  .exam-rating-circle {
    width: clamp(32px, 10vw, 40px);
    height: clamp(32px, 10vw, 40px);
    font-size: clamp(15px, 4.2vw, 18px);
  }
}

.speaking-progress-dashboard {
  margin-top: 34px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid rgba(8, 114, 135, 0.16);
  border-radius: 28px;
  background:
    radial-gradient(circle at 92% 8%, rgba(126, 34, 206, 0.1), transparent 31%),
    linear-gradient(145deg, rgba(238, 251, 249, 0.92), rgba(255, 249, 240, 0.95));
  box-shadow: 0 24px 60px rgba(39, 67, 71, 0.1);
}

.speaking-duration-dashboard {
  margin-top: 24px;
  border-color: rgba(249, 115, 22, 0.18);
  background:
    radial-gradient(circle at 92% 8%, rgba(126, 34, 206, 0.1), transparent 31%),
    linear-gradient(145deg, rgba(255, 247, 237, 0.94), rgba(240, 253, 250, 0.92));
}

.speaking-progress-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 18px;
}

.speaking-progress-toolbar h2 {
  margin: 4px 0 5px;
  color: #064b65;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(26px, 3vw, 38px);
}

.speaking-progress-toolbar p {
  margin: 0;
  color: #526b70;
  font-size: 14px;
  font-weight: 700;
}

.speaking-progress-controls {
  display: flex;
  justify-content: flex-end;
  gap: 7px;
  flex-wrap: wrap;
  max-width: 620px;
}

.speaking-progress-tab {
  min-height: 38px;
  border: 1px solid rgba(15, 143, 143, 0.24);
  border-radius: 999px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.82);
  color: #466267;
  font: inherit;
  font-size: 12px;
  line-height: 1.1;
  font-weight: 850;
  cursor: pointer;
  transition: transform 0.16s ease, background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
}

.speaking-progress-tab:hover,
.speaking-progress-tab.active {
  transform: translateY(-1px);
  background: #0f8f8f;
  color: #fff;
  box-shadow: 0 10px 22px rgba(15, 143, 143, 0.2);
}

.speaking-progress-tab.cumulative {
  border-color: rgba(126, 34, 206, 0.28);
  color: #6b21a8;
}

.speaking-progress-tab.cumulative:hover,
.speaking-progress-tab.cumulative.active {
  background: #7e22ce;
  color: #fff;
  box-shadow: 0 10px 22px rgba(126, 34, 206, 0.18);
}

.speaking-duration-dashboard .speaking-progress-tab:hover,
.speaking-duration-dashboard .speaking-progress-tab.active {
  background: #ea6a16;
  color: #fff;
  box-shadow: 0 10px 22px rgba(234, 106, 22, 0.2);
}

.speaking-duration-dashboard .speaking-progress-tab.cumulative:hover,
.speaking-duration-dashboard .speaking-progress-tab.cumulative.active {
  background: #7e22ce;
  color: #fff;
  box-shadow: 0 10px 22px rgba(126, 34, 206, 0.18);
}

.speaking-progress-chart-shell {
  min-height: 310px;
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-inline: contain;
  border: 1px solid rgba(15, 143, 143, 0.13);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.76);
}

.speaking-progress-chart-shell svg {
  display: block;
  width: 100%;
  min-width: 900px;
  height: auto;
}

.speaking-progress-stale {
  margin: 0 0 12px;
  padding: 10px 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid #fdba74;
  border-radius: 13px;
  background: #fff7ed;
  color: #9a3412;
  font-size: 13px;
  font-weight: 800;
}

.speaking-progress-loading {
  min-height: 310px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  color: #527074;
  text-align: center;
  font-weight: 800;
}

.speaking-chart-target {
  fill: transparent;
}

.speaking-chart-hover {
  cursor: pointer;
  outline: none;
}

.speaking-chart-tooltip {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease;
}

.speaking-chart-hover:hover .speaking-chart-tooltip,
.speaking-chart-hover:focus .speaking-chart-tooltip {
  opacity: 1;
}

.speaking-progress-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 12px 0 0;
  color: #4b6569;
  font-size: 13px;
  font-weight: 850;
}

.speaking-legend-dot {
  width: 11px;
  height: 11px;
  display: inline-block;
  margin-right: 6px;
  border-radius: 50%;
  vertical-align: -1px;
}

.speaking-legend-dot.daily { background: #0f8f8f; }
.speaking-legend-dot.duration { background: #f97316; }
.speaking-legend-dot.cumulative { background: #7e22ce; }

.speaking-progress-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.speaking-progress-stats > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 78px;
  padding: 16px 20px;
  border: 1px solid rgba(15, 143, 143, 0.13);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.75);
}

.speaking-progress-stats strong {
  color: #064b65;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
}

.speaking-duration-dashboard .speaking-progress-stats strong {
  font-size: clamp(20px, 2.4vw, 30px);
}

.speaking-progress-stats span {
  color: #5d7275;
  font-size: 13px;
  font-weight: 850;
  text-align: right;
}

.speaking-progress-day-panel {
  margin-top: 18px;
  padding: 20px;
  border: 1px solid rgba(15, 143, 143, 0.16);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.82);
}

.speaking-progress-day-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.speaking-progress-day-head h3,
.speaking-progress-day-head p {
  margin: 0;
}

.speaking-progress-day-head h3 {
  color: #064b65;
  font-size: 20px;
}

.speaking-progress-day-head p {
  margin-top: 5px;
  color: #647a7d;
  font-size: 13px;
}

.speaking-progress-day-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.speaking-progress-day-list {
  display: grid;
  gap: 8px;
}

.speaking-progress-day-row {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(150px, auto) minmax(100px, auto);
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(231, 247, 245, 0.72);
  color: #526b70;
  font-size: 13px;
}

.speaking-progress-day-row strong {
  color: #173f4c;
}

.speaking-progress-empty {
  color: #647a7d;
  font-weight: 700;
}

@media (max-width: 840px) {
  .speaking-progress-toolbar,
  .speaking-progress-day-head {
    align-items: stretch;
    flex-direction: column;
  }

  .speaking-progress-controls {
    justify-content: flex-start;
    max-width: none;
  }

  .speaking-progress-day-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }
}

@media (max-width: 560px) {
  .speaking-progress-dashboard {
    padding: 16px;
    border-radius: 22px;
  }

  .speaking-progress-chart-shell,
  .speaking-progress-loading {
    min-height: 230px;
  }

  .speaking-progress-stats {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .exam-question-card.is-entering,
  .examiner-message.is-entering {
    animation: none;
  }
}

:root {
  color-scheme: light;
  --ink: #17263a;
  --ink-soft: #32475f;
  --muted: #68778a;
  --paper: rgba(255, 253, 249, .91);
  --paper-solid: #fffdf9;
  --line: rgba(29, 71, 107, .15);
  --blue: #1769aa;
  --blue-deep: #0a466f;
  --blue-soft: #e5f2fa;
  --teal: #13827e;
  --teal-deep: #075f5b;
  --teal-soft: #e2f5f2;
  --coral: #c9614f;
  --coral-soft: #fff0ea;
  --gold: #b37a25;
  --green: #16835a;
  --danger: #b42318;
  --shadow: 0 26px 75px rgba(26, 54, 78, .15);
  --shadow-soft: 0 14px 36px rgba(26, 54, 78, .1);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 17px;
  --content: 1480px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  position: relative;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 4%, rgba(255, 255, 255, .95), transparent 28rem),
    linear-gradient(135deg, #cce3e5 0%, #e8dbcb 49%, #f6edda 100%);
  font-family: "Edmund Serif TC", "Noto Serif TC", "Source Han Serif TC", "Songti TC", "PMingLiU", serif;
  font-weight: 680;
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  opacity: .17;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 54px 54px;
  pointer-events: none;
}

button,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  touch-action: manipulation;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid rgba(23, 105, 170, .36);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 12px;
  color: #fff;
  background: var(--blue-deep);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: none;
}

.ambient {
  position: fixed;
  z-index: -2;
  width: 36rem;
  height: 36rem;
  border-radius: 50%;
  filter: blur(3px);
  pointer-events: none;
}

.ambient-one {
  top: -18rem;
  right: -10rem;
  background: radial-gradient(circle, rgba(46, 156, 167, .27), transparent 68%);
}

.ambient-two {
  bottom: -18rem;
  left: -12rem;
  background: radial-gradient(circle, rgba(222, 161, 88, .25), transparent 68%);
}

.site-shell {
  width: min(var(--content), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: relative;
  z-index: 50;
  min-height: 98px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-main,
.brand-learning {
  display: block;
  width: auto;
  height: auto;
  object-fit: contain;
}

.brand-main {
  max-width: min(350px, 37vw);
}

.brand-learning {
  max-width: min(190px, 18vw);
  max-height: 70px;
}

.header-mascot {
  position: absolute;
  top: 4px;
  left: 50%;
  width: min(190px, 15vw);
  height: auto;
  max-height: 104px;
  object-fit: contain;
  filter: drop-shadow(0 15px 18px rgba(22, 60, 85, .16));
  transform: translateX(-50%);
  pointer-events: none;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
  flex-wrap: wrap;
}

.connection-pill,
.header-button,
.breadcrumb-button,
.chip-button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 15px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 8px 20px rgba(32, 67, 92, .07);
  font-size: 13px;
  font-weight: 850;
}

.connection-pill {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.connection-pill::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
  background: #c68b2d;
  box-shadow: 0 0 0 4px rgba(198, 139, 45, .14);
}

.connection-pill[data-connection-state="live"] {
  color: #0d6846;
  border-color: rgba(22, 131, 90, .24);
  background: rgba(232, 250, 240, .9);
}

.connection-pill[data-connection-state="live"]::before {
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(22, 131, 90, .14);
}

.connection-pill[data-connection-state="error"] {
  color: #922c25;
  border-color: rgba(180, 35, 24, .2);
  background: rgba(255, 239, 236, .9);
}

.connection-pill[data-connection-state="error"]::before {
  background: var(--danger);
}

.header-button,
.breadcrumb-button,
.chip-button {
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
}

.header-button:hover,
.breadcrumb-button:hover,
.chip-button:hover {
  background: #fff;
  box-shadow: 0 11px 25px rgba(32, 67, 92, .12);
  transform: translateY(-2px);
}

.header-button.danger {
  color: var(--danger);
}

.recordings-button {
  color: var(--blue-deep);
  border-color: rgba(23, 105, 170, .24);
  background: rgba(232, 244, 251, .92);
}

.bookmark-header-button.active {
  color: #7b4d0f;
  border-color: rgba(179, 122, 37, .28);
  background: #fff3d8;
}

.main-shell {
  min-height: calc(100vh - 100px);
  padding: 24px 0 78px;
}

.glass-card,
.content-panel {
  border: 1px solid rgba(255, 255, 255, .72);
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px) saturate(1.08);
  -webkit-backdrop-filter: blur(22px) saturate(1.08);
}

.login-view {
  min-height: calc(100vh - 152px);
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(370px, .62fr);
  align-items: center;
  gap: clamp(34px, 6vw, 108px);
}

.login-story {
  position: relative;
  min-height: 700px;
  display: grid;
  grid-template-rows: auto minmax(260px, 1fr) auto;
  align-items: center;
  gap: clamp(18px, 2.4vw, 32px);
  padding: clamp(30px, 5vw, 70px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .56);
  border-radius: 40px;
  background:
    linear-gradient(150deg, rgba(255,255,255,.5), rgba(231, 245, 243, .4)),
    rgba(246, 242, 234, .4);
  box-shadow: 0 32px 100px rgba(28, 61, 84, .11);
}

.login-story::after {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(28, 91, 120, .12);
  border-radius: 28px;
  pointer-events: none;
}

.eyebrow,
.mini-kicker {
  margin: 0;
  color: var(--teal-deep);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
}

.login-mascot {
  position: static;
  grid-row: 2;
  justify-self: end;
  align-self: center;
  display: block;
  width: min(460px, 62%);
  height: auto;
  max-height: 360px;
  object-fit: contain;
  filter: drop-shadow(0 24px 34px rgba(21, 67, 90, .17));
  pointer-events: none;
}

.login-story > div {
  position: relative;
  z-index: 1;
  grid-row: 3;
  min-width: 0;
}

.login-story h1 {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 750px;
  color: var(--blue-deep);
  font-size: clamp(58px, 7.4vw, 110px);
  font-weight: 900;
  line-height: .88;
  letter-spacing: -.045em;
}

.login-story h1 span {
  display: inline-block;
  margin-top: 18px;
  color: var(--teal-deep);
  font-size: .46em;
  line-height: 1.15;
  letter-spacing: .01em;
}

.login-story > div > p {
  position: relative;
  z-index: 1;
  max-width: 650px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.35vw, 22px);
}

.login-card {
  border-radius: 30px;
  padding: clamp(28px, 3.2vw, 46px);
}

.login-card-heading {
  margin-bottom: 25px;
}

.login-card h2 {
  margin: 8px 0 6px;
  color: var(--blue-deep);
  font-size: clamp(32px, 3vw, 46px);
  line-height: 1.06;
}

.login-card-heading > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.field {
  display: grid;
  gap: 8px;
  margin-top: 17px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 900;
}

.field input {
  width: 100%;
  min-width: 0;
  min-height: 54px;
  border: 1px solid rgba(23, 105, 170, .2);
  border-radius: 16px;
  padding: 0 16px;
  outline: none;
  color: var(--ink);
  background: rgba(255, 255, 255, .91);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
  font-weight: 750;
}

.field input:focus {
  border-color: rgba(23, 105, 170, .55);
  box-shadow: 0 0 0 4px rgba(23, 105, 170, .1);
}

.password-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.text-button {
  min-width: 92px;
  border: 1px solid rgba(23, 105, 170, .18);
  border-radius: 14px;
  padding: 0 12px;
  color: var(--blue-deep);
  background: var(--blue-soft);
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
}

.primary-button,
.secondary-button,
.danger-button,
.audio-button,
.record-button,
.attempt-action {
  min-height: 48px;
  border-radius: 999px;
  padding: 10px 20px;
  cursor: pointer;
  font-weight: 900;
  transition: transform .17s ease, box-shadow .17s ease, opacity .17s ease;
}

.primary-button {
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, #278dc1, #0c587d);
  box-shadow: 0 7px 0 #07415d, 0 18px 32px rgba(12, 88, 125, .22);
}

.secondary-button,
.attempt-action {
  border: 1px solid rgba(23, 105, 170, .22);
  color: var(--blue-deep);
  background: rgba(255, 255, 255, .9);
  box-shadow: var(--shadow-soft);
}

.danger-button,
.attempt-action.danger {
  border: 1px solid rgba(180, 35, 24, .2);
  color: var(--danger);
  background: #fff5f3;
}

.primary-button:hover,
.secondary-button:hover,
.danger-button:hover,
.audio-button:hover,
.record-button:hover,
.attempt-action:hover {
  transform: translateY(-2px);
}

.primary-button:active,
.secondary-button:active,
.danger-button:active,
.audio-button:active,
.record-button:active,
.attempt-action:active {
  transform: translateY(2px);
}

button:disabled {
  cursor: not-allowed;
  opacity: .5;
  transform: none !important;
}

.login-submit {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
  padding-inline: 24px;
}

.status {
  min-height: 23px;
  margin: 17px 0 0;
  color: var(--danger);
  font-size: 13px;
  font-weight: 800;
}

.status.success {
  color: var(--green);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  margin-bottom: 20px;
  overflow-x: auto;
  scrollbar-width: none;
}

.breadcrumbs::-webkit-scrollbar {
  display: none;
}

.breadcrumb-separator {
  color: rgba(50, 71, 95, .48);
}

.breadcrumb-button {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 7px 13px;
}

.breadcrumb-current {
  flex: 0 0 auto;
  color: var(--blue-deep);
  font-size: 13px;
  font-weight: 900;
}

.exam-breadcrumb-stopwatch {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(74, 63, 145, .18);
  border-radius: 999px;
  padding: 7px 11px;
  color: #51428d;
  background: rgba(248, 247, 255, .9);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.exam-breadcrumb-stopwatch strong {
  min-width: 42px;
  color: #172a44;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.content-panel {
  border-radius: var(--radius-xl);
  padding: clamp(24px, 3.5vw, 48px);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-heading h1,
.section-heading h2 {
  margin: 0;
  color: var(--blue-deep);
  font-size: clamp(33px, 4vw, 58px);
  line-height: 1.06;
}

.section-heading p {
  max-width: 770px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.welcome-chip,
.admin-chip {
  flex: 0 0 auto;
  border: 1px solid rgba(19, 130, 126, .18);
  border-radius: 999px;
  padding: 10px 16px;
  color: var(--teal-deep);
  background: rgba(226, 245, 242, .82);
  font-size: 14px;
  font-weight: 900;
}

.admin-chip {
  color: #884b12;
  border-color: rgba(179, 122, 37, .22);
  background: #fff5df;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.selection-card-wrap {
  position: relative;
  min-width: 0;
}

.choice-card-wrap .choice-card,
.book-card-wrap .book-card,
.exercise-card-wrap .exercise-card {
  width: 100%;
  height: 100%;
}

.selection-bookmark-button {
  position: absolute;
  z-index: 5;
  top: 16px;
  right: 16px;
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(23, 105, 170, .2);
  border-radius: 50%;
  padding: 0;
  color: var(--blue-deep);
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 8px 20px rgba(24, 61, 84, .13);
  cursor: pointer;
  font-size: 23px;
  line-height: 1;
  transition: transform .18s ease, color .18s ease, background .18s ease;
}

.selection-bookmark-button:hover,
.selection-bookmark-button:focus-visible {
  transform: translateY(-2px) scale(1.04);
}

.selection-bookmark-button.active {
  color: #8b570c;
  border-color: rgba(179, 122, 37, .3);
  background: #fff1cb;
}

.choice-card.access-locked,
.book-card.access-locked,
.exercise-card.access-locked {
  opacity: .58;
  filter: saturate(.55);
}

.book-card-wrap .selection-bookmark-button {
  top: 12px;
  right: 12px;
  width: 38px;
  height: 38px;
  font-size: 20px;
}

.exercise-card-wrap .selection-bookmark-button {
  top: 50%;
  right: 17px;
  transform: translateY(-50%);
}

.exercise-card-wrap .selection-bookmark-button:hover,
.exercise-card-wrap .selection-bookmark-button:focus-visible {
  transform: translateY(calc(-50% - 2px)) scale(1.04);
}

.exercise-card-wrap .exercise-card {
  padding-right: 78px;
}

.exercise-card-wrap .exercise-card .arrow {
  display: none;
}

.bookmarks-choice-card {
  background:
    radial-gradient(circle at 88% 12%, rgba(240, 183, 78, .25), transparent 46%),
    linear-gradient(150deg, rgba(255, 249, 230, .97), rgba(231, 245, 243, .82));
}

.portal-search-area {
  max-width: 900px;
  margin: -4px 0 28px;
}

.portal-search {
  display: grid;
  gap: 8px;
}

.portal-search label,
.admin-student-search span {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 900;
}

.portal-search input,
.admin-student-search input {
  width: 100%;
  min-height: 52px;
  border: 1px solid rgba(23, 105, 170, .2);
  border-radius: 16px;
  padding: 0 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, .9);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .8);
  outline: none;
}

.portal-search input:focus,
.admin-student-search input:focus {
  border-color: rgba(23, 105, 170, .52);
  box-shadow: 0 0 0 4px rgba(23, 105, 170, .1);
}

.speaking-search-results {
  display: grid;
  gap: 7px;
  margin-top: 10px;
}

.search-section-label {
  margin-top: 5px;
  color: var(--teal-deep);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}

.speaking-search-result,
.bookmark-open-button {
  width: 100%;
  min-height: 65px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid rgba(23, 105, 170, .14);
  border-radius: 16px;
  padding: 12px 15px;
  color: var(--ink);
  text-align: left;
  background: rgba(255, 255, 255, .82);
  cursor: pointer;
}

.speaking-search-result span,
.bookmark-open-button span {
  display: grid;
  min-width: 0;
}

.speaking-search-result strong,
.bookmark-open-button strong {
  color: var(--blue-deep);
}

.speaking-search-result small,
.bookmark-open-button small {
  color: var(--muted);
  font-size: 12px;
}

.speaking-search-result em,
.bookmark-open-button em {
  flex: 0 0 auto;
  color: var(--teal-deep);
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.search-empty {
  margin: 10px 0;
  color: var(--muted);
  font-size: 13px;
}

.choice-card {
  position: relative;
  min-height: 210px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  overflow: hidden;
  border: 1px solid rgba(23, 105, 170, .14);
  border-radius: var(--radius-lg);
  padding: 25px;
  text-align: left;
  color: var(--ink);
  background:
    radial-gradient(circle at 100% 0, rgba(32, 148, 157, .18), transparent 48%),
    rgba(255, 255, 255, .82);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.choice-card::after {
  content: "→";
  position: absolute;
  right: 22px;
  bottom: 19px;
  color: var(--teal);
  font-size: 25px;
  transition: transform .2s ease;
}

.choice-card:hover,
.choice-card:focus-visible {
  border-color: rgba(19, 130, 126, .34);
  box-shadow: 0 22px 48px rgba(26, 72, 96, .15);
  transform: translateY(-5px);
}

.choice-card:hover::after {
  transform: translateX(5px);
}

.choice-card .card-number {
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .14em;
}

.choice-card strong {
  max-width: 88%;
  color: var(--blue-deep);
  font-size: clamp(22px, 2vw, 31px);
  line-height: 1.15;
}

.choice-card small {
  max-width: 85%;
  color: var(--muted);
  font-size: 13px;
}

.choice-card.coming-soon {
  background: rgba(255, 255, 255, .62);
}

.choice-card.coming-soon .availability {
  display: inline-flex;
  margin-top: 8px;
  border-radius: 999px;
  padding: 5px 9px;
  color: #8a5719;
  background: #fff2d8;
  font-size: 11px;
}

.parts-grid .choice-card {
  min-height: 250px;
}

.parts-grid .choice-card strong {
  font-size: clamp(32px, 3vw, 48px);
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 15px;
}

.book-card {
  position: relative;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  overflow: hidden;
  border: 1px solid rgba(23, 105, 170, .14);
  border-radius: 20px;
  padding: 20px;
  color: var(--ink);
  text-align: left;
  background:
    linear-gradient(155deg, rgba(255,255,255,.94), rgba(230,243,245,.8));
  box-shadow: 0 10px 28px rgba(24, 61, 84, .09);
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease;
}

.book-card::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 20px;
  width: 28px;
  height: 5px;
  border-radius: 9px;
  background: var(--teal);
}

.book-card strong {
  color: var(--blue-deep);
  font-size: 22px;
}

.book-card span {
  color: var(--muted);
  font-size: 12px;
}

.book-card.available {
  --book-cover-image: url("assets/speaking-system/book-1-part-2.webp");
  color: #fff;
  border-color: rgba(7, 95, 91, .25);
  background:
    linear-gradient(145deg, rgba(8, 85, 104, .76), rgba(19, 130, 126, .78)),
    var(--book-cover-image) center / cover;
}

.book-card.available[data-part="1"] {
  --book-cover-image: url("assets/speaking-system/book-1-part-1.webp");
}

.book-card.available[data-part="2"] {
  --book-cover-image: url("assets/speaking-system/book-1-part-2.webp");
}

.book-card.available[data-part="3"] {
  --book-cover-image: url("assets/speaking-system/book-1-part-3.webp");
  background-position: center, center 20%;
}

.book-card.available::before {
  background: #fff;
}

.book-card.available strong,
.book-card.available span {
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,.24);
}

.book-card:hover,
.book-card:focus-visible {
  box-shadow: 0 18px 34px rgba(24, 61, 84, .16);
  transform: translateY(-4px);
}

.exercise-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.exercise-card {
  min-height: 145px;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  border: 1px solid rgba(23, 105, 170, .14);
  border-radius: 21px;
  padding: 19px;
  text-align: left;
  color: var(--ink);
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 11px 28px rgba(24, 61, 84, .08);
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.exercise-card:hover,
.exercise-card:focus-visible {
  border-color: rgba(19, 130, 126, .34);
  box-shadow: 0 17px 38px rgba(24, 61, 84, .14);
  transform: translateY(-3px);
}

.exercise-index {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(145deg, #258aa0, #0b5b72);
  font-size: 20px;
  font-weight: 900;
}

.exercise-card strong {
  display: block;
  color: var(--blue-deep);
  font-size: 20px;
  line-height: 1.25;
}

.exercise-card small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.exercise-card .arrow {
  color: var(--teal);
  font-size: 25px;
}

.exercise-view {
  display: grid;
  gap: 20px;
}

.exercise-hero {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: clamp(27px, 4vw, 52px);
  color: #fff;
  background:
    radial-gradient(circle at 88% 8%, rgba(111, 226, 214, .26), transparent 28rem),
    linear-gradient(135deg, #0a4f68, #147f7a);
  box-shadow: var(--shadow);
}

.exercise-hero::after {
  content: attr(data-exercise-number);
  position: absolute;
  right: 4%;
  bottom: -35%;
  color: rgba(255,255,255,.08);
  font-size: clamp(180px, 25vw, 360px);
  font-weight: 900;
  line-height: 1;
  pointer-events: none;
}

.exercise-hero .eyebrow {
  color: #bcefe7;
}

.exercise-hero h1 {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 11px 0 0;
  font-size: clamp(38px, 5.2vw, 72px);
  line-height: 1.06;
}

.exercise-hero p {
  position: relative;
  z-index: 1;
  margin: 13px 0 0;
  color: rgba(255,255,255,.82);
}

.cue-card,
.response-card,
.recorder-card,
.audio-panel,
.attempt-card,
.empty-state,
.notice-card {
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.cue-card {
  padding: clamp(24px, 3.2vw, 42px);
}

.cue-label,
.response-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  margin-bottom: 16px;
  border-radius: 999px;
  padding: 5px 11px;
  color: var(--teal-deep);
  background: var(--teal-soft);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}

.cue-copy {
  margin: 0;
  color: var(--ink);
  font-size: clamp(17px, 1.55vw, 21px);
  line-height: 1.85;
  white-space: pre-line;
}

.audio-panel {
  position: sticky;
  top: 12px;
  z-index: 25;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 17px;
  padding: 15px 18px;
}

.audio-main-controls,
.audio-options,
.rate-selector,
.recorder-controls,
.recorder-actions,
.attempt-actions,
.attempts-toolbar {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
}

.audio-button {
  min-width: 152px;
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, #188a83, #075d68);
  box-shadow: 0 7px 0 #06434b, 0 15px 26px rgba(7, 93, 104, .2);
}

.audio-button.is-playing {
  background: linear-gradient(135deg, #d07942, #a44c38);
  box-shadow: 0 7px 0 #7e3729, 0 15px 26px rgba(164, 76, 56, .2);
}

.audio-note {
  color: var(--muted);
  font-size: 12px;
}

.rate-selector {
  padding: 5px;
  border-radius: 999px;
  background: rgba(229, 242, 250, .8);
}

.rate-button {
  min-width: 42px;
  min-height: 34px;
  border: 0;
  border-radius: 999px;
  padding: 5px 8px;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  font-weight: 900;
}

.rate-button.active {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 5px 12px rgba(23, 105, 170, .2);
}

.highlight-toggle {
  min-height: 42px;
  border: 1px solid rgba(19, 130, 126, .18);
  border-radius: 999px;
  padding: 7px 13px;
  color: var(--muted);
  background: #fff;
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
}

.highlight-toggle strong {
  margin-left: 6px;
  color: var(--danger);
}

.highlight-toggle.active {
  color: var(--teal-deep);
  background: var(--teal-soft);
}

.highlight-toggle.active strong {
  color: var(--green);
}

.response-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.response-card {
  padding: clamp(22px, 2.7vw, 34px);
}

.response-card h2 {
  margin: 0;
  color: var(--blue-deep);
  font-size: clamp(21px, 2vw, 28px);
  line-height: 1.25;
}

.response-card .heading-zh {
  margin: 7px 0 19px;
  color: var(--teal-deep);
  font-size: 14px;
}

.response-en,
.response-zh {
  margin: 0;
}

.response-en {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(17px, 1.45vw, 20px);
  font-weight: 500;
  line-height: 1.78;
}

.response-zh {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 17px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.78;
}

.timed-word {
  border-radius: 5px;
  cursor: pointer;
  transition: color .12s ease, background .12s ease, box-shadow .12s ease;
}

.timed-word:hover,
.timed-word:focus-visible {
  color: var(--blue-deep);
  background: rgba(213, 237, 248, .8);
}

.timed-word.is-spoken {
  color: #073e2e;
  background: #87efaa;
  box-shadow: 0 0 0 2px rgba(84, 201, 124, .19);
}

.recorder-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: clamp(24px, 3vw, 38px);
  border-color: rgba(201, 97, 79, .18);
  background:
    radial-gradient(circle at 95% 0, rgba(242, 158, 128, .17), transparent 19rem),
    var(--paper);
  box-shadow: 0 22px 55px rgba(28, 56, 72, .2);
}

.recorder-card-anchor {
  display: block;
  width: 100%;
  height: 0;
  pointer-events: none;
}

.recorder-card-anchor.is-reserving {
  width: 100%;
}

.exercise-view.has-floating-recorder {
  padding-bottom: var(--floating-recorder-reserve, 0);
}

.recorder-card.is-floating {
  position: fixed;
  right: max(18px, env(safe-area-inset-right));
  bottom: calc(var(--recorder-floating-bottom, 12px) + env(safe-area-inset-bottom));
  z-index: 45;
  width: min(470px, calc(100vw - 36px - env(safe-area-inset-left) - env(safe-area-inset-right)));
  max-height: min(70vh, 620px);
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 13px;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 17px;
  background:
    radial-gradient(circle at 95% 0, rgba(242, 158, 128, .15), transparent 13rem),
    rgba(255, 253, 249, .98);
  box-shadow: 0 24px 64px rgba(20, 43, 57, .3);
  animation: recorder-float-in .18s ease-out;
}

.recorder-card.is-floating > div:first-child > p,
.recorder-card.is-floating .page-recording-history {
  display: none;
}

.recorder-card.is-floating h2 {
  font-size: 23px;
}

.recorder-card.is-floating .recording-status {
  margin-top: 6px;
  font-size: 12px;
}

.recorder-card.is-floating .recording-preview {
  padding-top: 12px;
}

.recorder-card.is-floating .recording-preview audio {
  margin-bottom: 9px;
}

.recorder-card.is-floating .save-note {
  display: none;
}

@keyframes recorder-float-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

.recorder-card h2 {
  margin: 0;
  color: #7c3a32;
  font-size: clamp(25px, 2.5vw, 36px);
}

.recorder-card p {
  max-width: 820px;
  margin: 7px 0 0;
  color: var(--muted);
}

.page-recording-history {
  grid-column: 1 / -1;
  min-width: 0;
  border-top: 1px solid rgba(201, 97, 79, .16);
  padding-top: 16px;
}

.page-recording-history > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.page-recording-history h3 {
  margin: 0;
  color: #7c3a32;
  font-size: 16px;
}

.page-recording-history [data-page-recording-count] {
  border-radius: 999px;
  padding: 4px 10px;
  color: #7c3a32;
  background: rgba(242, 158, 128, .16);
  font-size: 12px;
  font-weight: 900;
}

.page-recording-list {
  display: grid;
  gap: 9px;
  max-height: 260px;
  overflow: auto;
  overscroll-behavior: contain;
}

.page-recording-item {
  display: grid;
  grid-template-columns: minmax(118px, auto) minmax(180px, 1fr) auto;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(201, 97, 79, .14);
  border-radius: 15px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, .74);
}

.page-recording-meta {
  display: grid;
  gap: 2px;
}

.page-recording-meta strong {
  color: var(--ink-soft);
  font-size: 13px;
}

.page-recording-meta span {
  color: var(--muted);
  font-size: 11px;
}

.page-recording-item audio {
  width: 100%;
  min-width: 0;
}

.page-recording-item .secondary-button {
  min-height: 38px;
  padding: 7px 12px;
  white-space: nowrap;
}

.page-recording-empty {
  margin: 0 !important;
  padding: 9px 0 1px;
  font-size: 12px;
}

.record-button {
  min-width: 172px;
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, #d26c59, #a94034);
  box-shadow: 0 7px 0 #7f3028, 0 18px 30px rgba(169, 64, 52, .22);
}

.record-button.is-recording {
  animation: recording-pulse 1.3s ease-in-out infinite;
}

.recorder-controls {
  justify-content: flex-end;
}

.record-button.is-paused {
  color: #5f420a;
  background: linear-gradient(135deg, #efc763, #d89a31);
  box-shadow: 0 7px 0 #9c671c, 0 18px 30px rgba(179, 122, 37, .19);
}

.finish-recording-button {
  border-color: rgba(124, 58, 50, .24);
  color: #7c3a32;
}

.recording-status {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 28px;
  margin-top: 15px;
  color: #7c3a32;
  font-size: 14px;
  font-weight: 900;
}

.recording-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 5px rgba(201, 97, 79, .14);
}

.recording-dot.paused {
  background: #d89a31;
  box-shadow: 0 0 0 5px rgba(216, 154, 49, .14);
}

.recording-clock {
  min-width: 88px;
  margin-left: auto;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.recording-preview {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.recording-preview audio {
  width: min(100%, 620px);
  display: block;
  margin-bottom: 15px;
}

.save-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.bookmark-list {
  display: grid;
  gap: 11px;
}

.bookmark-list-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 54px;
  align-items: stretch;
  gap: 9px;
}

.bookmark-list-row .selection-bookmark-button {
  position: static;
  width: 100%;
  height: 100%;
  min-height: 65px;
  border-radius: 16px;
}

.bookmark-open-button:disabled {
  cursor: not-allowed;
  opacity: .62;
}

.admin-layout {
  display: grid;
  grid-template-columns: minmax(240px, .42fr) minmax(0, 1fr);
  gap: 22px;
}

.admin-student-panel,
.admin-access-panel {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px;
  background: rgba(255, 255, 255, .66);
}

.admin-student-search {
  display: grid;
  gap: 7px;
}

.admin-student-list {
  display: grid;
  gap: 7px;
  max-height: 760px;
  margin-top: 14px;
  overflow-y: auto;
}

.admin-student-row {
  display: grid;
  gap: 3px;
  border: 1px solid rgba(23, 105, 170, .12);
  border-radius: 14px;
  padding: 12px;
  color: var(--ink);
  text-align: left;
  background: rgba(255, 255, 255, .76);
  cursor: pointer;
}

.admin-student-row small {
  color: var(--muted);
  font-size: 11px;
}

.admin-student-row.active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #1769aa, #0d6f7a);
}

.admin-student-row.active small {
  color: rgba(255, 255, 255, .75);
}

.admin-access-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.admin-access-heading h2 {
  margin: 0;
  color: var(--blue-deep);
}

.admin-access-heading p,
.admin-save-status {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.admin-access-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-access-actions .secondary-button {
  min-height: 40px;
  padding: 7px 13px;
  font-size: 12px;
}

.admin-access-tree {
  display: grid;
  gap: 9px;
}

.admin-access-branch {
  border: 1px solid rgba(23, 105, 170, .12);
  border-radius: 15px;
  padding: 11px 13px;
  background: rgba(255, 255, 255, .72);
}

.admin-access-branch.depth-1 {
  margin-top: 8px;
  border-color: rgba(19, 130, 126, .14);
  background: rgba(235, 249, 247, .66);
}

.admin-access-branch.depth-2 {
  display: inline-block;
  width: min(100%, 185px);
  margin: 7px 7px 0 0;
  padding: 8px 10px;
  background: rgba(255, 255, 255, .85);
}

.admin-access-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 900;
}

.admin-access-toggle input {
  width: 21px;
  height: 21px;
  accent-color: var(--teal);
}

.admin-access-children summary {
  margin-top: 8px;
  color: var(--teal-deep);
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
}

.attempts-toolbar {
  justify-content: space-between;
  margin-bottom: 22px;
}

.attempts-summary {
  color: var(--muted);
  font-size: 14px;
}

.attempt-list {
  display: grid;
  gap: 13px;
}

.attempt-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 20px 22px;
}

.attempt-card h3 {
  margin: 0;
  color: var(--blue-deep);
  font-size: 19px;
}

.attempt-meta {
  display: flex;
  align-items: center;
  gap: 8px 16px;
  flex-wrap: wrap;
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
}

.attempt-meta strong {
  color: var(--teal-deep);
}

.attempt-action {
  min-height: 39px;
  padding: 7px 13px;
  font-size: 12px;
}

.attempt-card audio {
  grid-column: 1 / -1;
  width: 100%;
  margin-top: 5px;
}

.empty-state,
.notice-card {
  padding: 42px;
  text-align: center;
}

.empty-state .empty-icon {
  display: block;
  margin-bottom: 10px;
  font-size: 42px;
}

.empty-state h2,
.notice-card h2 {
  margin: 0;
  color: var(--blue-deep);
}

.empty-state p,
.notice-card p {
  max-width: 650px;
  margin: 10px auto 0;
  color: var(--muted);
}

.loading-state {
  min-height: 210px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(23, 105, 170, .17);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

.toast-region {
  position: fixed;
  z-index: 100;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  width: min(390px, calc(100% - 36px));
  display: grid;
  gap: 9px;
  pointer-events: none;
}

.toast {
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 16px;
  padding: 13px 16px;
  color: #fff;
  background: rgba(16, 50, 67, .94);
  box-shadow: 0 15px 40px rgba(9, 32, 44, .25);
  backdrop-filter: blur(15px);
  animation: toast-in .2s ease-out;
  font-size: 13px;
  font-weight: 800;
}

.toast.error {
  background: rgba(137, 44, 37, .95);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
}

@keyframes recording-pulse {
  50% { box-shadow: 0 7px 0 #7f3028, 0 0 0 10px rgba(201, 97, 79, .12); }
}

@media (max-width: 1120px) {
  .header-mascot {
    display: none;
  }

  .login-view {
    grid-template-columns: minmax(0, 1fr) minmax(340px, .72fr);
    gap: 28px;
  }

  .choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .book-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .audio-panel {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 820px) {
  .site-shell {
    width: min(100% - 24px, var(--content));
  }

  .site-header {
    min-height: 78px;
    align-items: flex-start;
  }

  .brand-main {
    max-width: 210px;
  }

  .brand-learning {
    max-width: 104px;
  }

  .connection-pill {
    display: none;
  }

  .header-button {
    min-height: 36px;
    padding: 6px 11px;
    font-size: 11px;
  }

  .recordings-button span:first-child {
    display: none;
  }

  .main-shell {
    padding-top: 10px;
  }

  .login-view {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 16px 0 45px;
  }

  .login-story {
    min-height: auto;
    grid-template-rows: auto auto auto;
    gap: 18px;
  }

  .login-mascot {
    width: min(420px, 64%);
    max-height: 340px;
  }

  .choice-grid,
  .exercise-grid,
  .response-grid {
    grid-template-columns: 1fr;
  }

  .book-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-heading {
    flex-direction: column;
  }

  .welcome-chip,
  .admin-chip {
    align-self: flex-start;
  }

  .recorder-card,
  .attempt-card {
    grid-template-columns: 1fr;
  }

  .recorder-controls,
  .record-button,
  .finish-recording-button,
  .exam-skip-question-button {
    width: 100%;
    justify-self: stretch;
  }

  .recorder-card.is-floating {
    right: max(7px, env(safe-area-inset-right));
    width: calc(100vw - 14px - env(safe-area-inset-left) - env(safe-area-inset-right));
    gap: 12px;
    max-height: min(72vh, 580px);
    padding: 16px;
    background:
      radial-gradient(circle at 95% 0, rgba(242, 158, 128, .13), transparent 13rem),
      rgba(255, 253, 249, .97);
  }

  .recorder-card.is-floating h2 {
    font-size: 23px;
  }

  .recorder-card.is-floating > div:first-child > p {
    display: none;
  }

  .recorder-card.is-floating .recording-status {
    margin-top: 7px;
  }

  .page-recording-list {
    max-height: 30vh;
  }

  .page-recording-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .page-recording-item .secondary-button {
    width: 100%;
  }

  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-student-list {
    max-height: 300px;
  }

  .attempt-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 540px) {
  .site-shell {
    width: min(100% - 18px, var(--content));
  }

  .site-header {
    min-height: 72px;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    justify-items: start;
    gap: 8px;
    padding: 10px 0;
  }

  .brand {
    display: grid;
    gap: 3px;
  }

  .brand-main {
    max-width: 150px;
  }

  .brand-learning {
    max-width: 86px;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-start;
    gap: 5px;
    overflow-x: auto;
    padding: 2px 2px 7px;
    scrollbar-width: none;
  }

  .header-actions::-webkit-scrollbar {
    display: none;
  }

  .header-actions .header-button {
    flex: 0 0 auto;
  }

  .recordings-button span:last-child {
    max-width: 88px;
    line-height: 1.05;
  }

  .login-story {
    min-height: auto;
    padding: 25px;
    border-radius: 27px;
  }

  .login-story::after {
    inset: 12px;
    border-radius: 20px;
  }

  .login-story h1 {
    font-size: clamp(48px, 17vw, 74px);
  }

  .login-mascot {
    width: min(330px, 82%);
    max-height: 300px;
  }

  .login-card,
  .content-panel,
  .cue-card,
  .response-card,
  .recorder-card {
    border-radius: 21px;
  }

  .password-field {
    grid-template-columns: 1fr;
  }

  .text-button {
    min-height: 42px;
  }

  .book-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .book-card {
    min-height: 125px;
    padding: 16px;
  }

  .exercise-card {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 13px;
  }

  .exercise-index {
    width: 48px;
    height: 48px;
  }

  .exercise-card .arrow {
    display: none;
  }

  .selection-bookmark-button {
    top: 11px;
    right: 11px;
    width: 39px;
    height: 39px;
  }

  .exercise-card-wrap .selection-bookmark-button {
    top: 50%;
    right: 10px;
  }

  .exercise-card-wrap .exercise-card {
    padding-right: 59px;
  }

  .admin-access-heading {
    flex-direction: column;
  }

  .admin-access-actions,
  .admin-access-actions .secondary-button {
    width: 100%;
  }

  .audio-options,
  .rate-selector {
    width: 100%;
  }

  .rate-selector {
    justify-content: space-between;
    border-radius: 16px;
  }

  .rate-button {
    min-width: 38px;
    padding-inline: 5px;
  }

  .audio-button {
    width: 100%;
  }

  .attempts-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .attempts-toolbar .primary-button {
    width: 100%;
  }
}

.part1-exercise {
  --part1-reading-width: 1080px;
}

.part1-exercise-hero {
  background:
    radial-gradient(circle at 84% 5%, rgba(137, 125, 255, .34), transparent 28rem),
    linear-gradient(135deg, #061b45 0%, #132d6a 50%, #4a1e73 100%);
}

.part1-exercise-hero .eyebrow {
  margin: 0;
  color: #cfe8ff;
}

.part1-hero-meta {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.part1-hero-meta > span {
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px;
  padding: 7px 13px;
  color: #fff;
  background: rgba(255,255,255,.12);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
}

.part1-directory,
.part1-dialogue-stage {
  max-width: var(--part1-reading-width);
  margin-inline: auto;
  border: 1px solid rgba(255,255,255,.78);
  border-radius: var(--radius-xl);
  padding: clamp(20px, 3vw, 36px);
  background: rgba(255, 253, 249, .78);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.part1-dialogue-stage {
  overflow: hidden;
  overflow: clip;
}

.part1-directory-heading,
.part1-dialogue-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.part1-directory-heading h2,
.part1-dialogue-heading h2 {
  margin: 3px 0 0;
  color: var(--blue-deep);
  font-size: clamp(25px, 2.8vw, 38px);
  line-height: 1.15;
}

.part1-animation-toggle {
  min-width: 168px;
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  padding: 10px 18px;
  color: #fff;
  background: linear-gradient(135deg, #253b87, #663b95);
  box-shadow: 0 6px 0 #2c215d, 0 15px 28px rgba(47, 38, 111, .2);
  cursor: pointer;
  font-size: 13px;
  font-weight: 900;
}

.part1-animation-toggle span {
  display: block;
  margin-top: 1px;
  color: rgba(255,255,255,.72);
  font-size: 9px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.part1-animation-toggle strong {
  display: inline-block;
  min-width: 29px;
  margin-left: 4px;
  font-size: 12px;
  letter-spacing: .06em;
}

.part1-animation-toggle[aria-checked="false"] {
  color: #144837;
  background: linear-gradient(135deg, #dff9ed, #bcebd8);
  box-shadow: 0 5px 0 #8fceb4;
}

.part1-animation-toggle[aria-checked="false"] span {
  color: #397661;
}

.part1-question-index {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.part1-question-index a {
  display: grid;
  min-height: 72px;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 11px;
  border: 1px solid rgba(23, 58, 120, .12);
  border-radius: 17px;
  padding: 11px 13px;
  color: #17335d;
  background: linear-gradient(145deg, rgba(255,255,255,.94), rgba(232,245,255,.78));
  box-shadow: 0 8px 20px rgba(28, 56, 101, .06);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.35;
  text-decoration: none;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.part1-question-index a:hover,
.part1-question-index a:focus-visible {
  border-color: rgba(85, 55, 146, .38);
  background: #fff;
  box-shadow: 0 12px 28px rgba(44, 36, 102, .12);
}

.part1-question-index a span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(145deg, #172f70, #5a2f89);
  box-shadow: 0 7px 15px rgba(37, 42, 105, .18);
  font-size: 11px;
  font-weight: 900;
}

.part1-audio-panel {
  max-width: var(--part1-reading-width);
  width: 100%;
  margin-inline: auto;
  border-color: rgba(55, 47, 133, .15);
}

.part1-play-all {
  background: linear-gradient(135deg, #263f8d, #5b2f88);
  box-shadow: 0 7px 0 #2b205d, 0 15px 26px rgba(47, 38, 111, .2);
}

.part1-dialogue-heading > p {
  max-width: 420px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.part1-conversation {
  display: grid;
  gap: clamp(22px, 4vw, 42px);
  margin: 0;
  padding: 8px 0 16px;
  list-style: none;
}

.part1-row {
  display: flex;
  width: 100%;
  scroll-margin-top: 110px;
}

.part1-question-row {
  justify-content: flex-end;
}

.part1-answer-row {
  justify-content: flex-start;
}

.part1-message {
  --part1-pop-offset: 44px;
  position: relative;
  width: min(78%, 820px);
  padding: clamp(18px, 2.6vw, 29px);
  transition: box-shadow .24s ease;
}

.part1-question-message {
  transform-origin: right center;
  border: 1px solid rgba(151, 146, 255, .24);
  border-radius: 28px 28px 8px 28px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 0, rgba(181, 135, 255, .22), transparent 20rem),
    linear-gradient(135deg, #071f4d 0%, #172f70 52%, #4a1f75 100%);
  box-shadow: 0 21px 48px rgba(17, 26, 78, .2);
}

.part1-answer-message {
  transform-origin: left center;
  border: 1px solid rgba(94, 174, 226, .28);
  border-radius: 28px 28px 28px 8px;
  color: #102a4d;
  background:
    radial-gradient(circle at 8% 0, rgba(255,255,255,.95), transparent 19rem),
    linear-gradient(135deg, #fff 0%, #eef9ff 55%, #addfff 100%);
  box-shadow: 0 21px 48px rgba(43, 114, 164, .15);
}

.part1-question-message::after,
.part1-answer-message::after {
  content: "";
  position: absolute;
  bottom: -1px;
  width: 19px;
  height: 19px;
  pointer-events: none;
}

.part1-question-message::after {
  right: -10px;
  background: #4a1f75;
  clip-path: polygon(0 0, 100% 100%, 0 100%);
}

.part1-answer-message::after {
  left: -10px;
  background: #b4e2ff;
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.part1-message-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 13px;
  margin-bottom: 13px;
}

.part1-message-header > span {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .1em;
}

.part1-question-message .part1-message-header > span {
  color: #cce4ff;
}

.part1-answer-message .part1-message-header > span {
  color: #216c9d;
}

.part1-message-audio {
  min-height: 36px;
  border: 1px solid rgba(255,255,255,.26);
  border-radius: 999px;
  padding: 7px 12px;
  color: inherit;
  background: rgba(255,255,255,.13);
  cursor: pointer;
  font-size: 10px;
  font-weight: 900;
}

.part1-answer-message .part1-message-audio {
  border-color: rgba(31, 107, 159, .17);
  color: #155b88;
  background: rgba(255,255,255,.62);
}

.part1-message-audio.is-playing {
  color: #fff;
  background: linear-gradient(135deg, #d07942, #a44c38);
}

.part1-message-audio:disabled {
  opacity: .42;
  cursor: not-allowed;
}

.part1-message-en,
.part1-message-zh {
  margin: 0;
}

.part1-message-en {
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(18px, 1.65vw, 22px);
  font-weight: 600;
  line-height: 1.7;
}

.part1-message-zh {
  margin-top: 15px;
  border-top: 1px solid currentColor;
  padding-top: 14px;
  color: inherit;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.78;
  opacity: .76;
}

.part1-question-message .timed-word:hover,
.part1-question-message .timed-word:focus-visible {
  color: #fff;
  background: rgba(255,255,255,.18);
}

.part1-reveal-ready:not(.part1-animation-disabled) .part1-row:not(.is-revealed) .part1-message {
  opacity: 0;
  pointer-events: none;
  user-select: none;
}

.part1-reveal-ready:not(.part1-animation-disabled) .part1-question-row:not(.is-revealed) .part1-message {
  transform: translateX(var(--part1-pop-offset)) scale(.985);
}

.part1-reveal-ready:not(.part1-animation-disabled) .part1-answer-row:not(.is-revealed) .part1-message {
  transform: translateX(calc(-1 * var(--part1-pop-offset))) scale(.985);
}

.part1-reveal-ready .part1-row.is-revealed .part1-message,
.part1-animation-disabled .part1-message {
  opacity: 1;
  transform: none;
}

.part1-reveal-ready:not(.part1-animation-disabled) .part1-question-row.is-entering .part1-message {
  animation: part1-pop-from-right .5s cubic-bezier(.22, .72, .24, 1) both;
}

.part1-reveal-ready:not(.part1-animation-disabled) .part1-answer-row.is-entering .part1-message {
  animation: part1-pop-from-left .5s cubic-bezier(.22, .72, .24, 1) both;
}

.part1-animation-disabled .part1-message {
  animation: none !important;
  transition: none !important;
}

@keyframes part1-pop-from-right {
  0% { opacity: 0; transform: translateX(var(--part1-pop-offset)) scale(.96); }
  30% { opacity: 1; transform: translateX(-6px) scale(1.018); }
  66% { opacity: 1; transform: translateX(2px) scale(.995); }
  100% { opacity: 1; transform: none; }
}

@keyframes part1-pop-from-left {
  0% { opacity: 0; transform: translateX(calc(-1 * var(--part1-pop-offset))) scale(.96); }
  30% { opacity: 1; transform: translateX(6px) scale(1.018); }
  66% { opacity: 1; transform: translateX(-2px) scale(.995); }
  100% { opacity: 1; transform: none; }
}

@media (max-width: 1120px) {
  .part1-row {
    scroll-margin-top: 28px;
  }
}

@media (max-width: 820px) {
  .part1-directory-heading,
  .part1-dialogue-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .part1-animation-toggle {
    width: 100%;
  }

  .part1-question-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .part1-dialogue-heading > p {
    max-width: none;
  }

  .part1-message {
    width: min(90%, 760px);
  }
}

@media (max-width: 540px) {
  .part1-hero-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .part1-directory,
  .part1-dialogue-stage {
    border-radius: 21px;
    padding: 17px 14px;
  }

  .part1-question-index {
    grid-template-columns: 1fr;
  }

  .part1-question-index a {
    min-height: 64px;
  }

  .part1-conversation {
    gap: 24px;
  }

  .part1-message {
    --part1-pop-offset: 24px;
    width: 96%;
    padding: 16px;
  }

  .part1-question-message {
    border-radius: 22px 22px 7px 22px;
  }

  .part1-answer-message {
    border-radius: 22px 22px 22px 7px;
  }

  .part1-message-en {
    font-size: 17px;
    line-height: 1.68;
  }

  .part1-message-zh {
    font-size: 14px;
  }
}

.part3-theme-group + .part3-theme-group {
  margin-top: 34px;
  border-top: 1px solid var(--line);
  padding-top: 30px;
}

.part3-theme-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.part3-theme-heading span,
.exercise-theme {
  color: var(--teal-deep);
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.part3-theme-heading span {
  border-radius: 999px;
  padding: 7px 12px;
  background: var(--teal-soft);
}

.part3-theme-heading small {
  color: var(--muted);
  font-size: 12px;
}

.exercise-theme {
  display: block;
  margin-bottom: 4px;
  font-size: 10px;
}

.part3-exercise {
  --part3-reading-width: 1040px;
}

.part3-exercise-hero h1 {
  max-width: 1100px;
  font-size: clamp(32px, 4.3vw, 58px);
  line-height: 1.12;
}

.part3-hero-meta {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.part3-hero-meta .eyebrow {
  margin: 0;
}

.part3-hero-meta > span {
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  padding: 7px 12px;
  color: #fff;
  background: rgba(255, 255, 255, .12);
  font-size: 12px;
  font-weight: 900;
}

.part3-reading-guide {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: var(--part3-reading-width);
  margin-inline: auto;
}

.part3-reading-guide > div {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(23, 105, 170, .12);
  border-radius: 18px;
  padding: 15px;
  background: rgba(255, 255, 255, .7);
  box-shadow: 0 10px 28px rgba(26, 54, 78, .06);
}

.part3-reading-guide > div > span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--blue-deep));
  font-size: 12px;
  font-weight: 900;
}

.part3-reading-guide p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.part3-reading-guide strong {
  display: block;
  margin-bottom: 2px;
  color: var(--ink);
  font-size: 13px;
}

.part3-response-section {
  max-width: var(--part3-reading-width);
  margin-inline: auto;
  border: 1px solid rgba(255, 255, 255, .78);
  border-radius: var(--radius-xl);
  padding: clamp(18px, 3vw, 34px);
  background: rgba(255, 253, 249, .72);
  box-shadow: var(--shadow-soft);
}

.part3-response-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
}

.part3-response-heading h2 {
  margin: 3px 0 0;
  color: var(--blue-deep);
  font-size: clamp(25px, 2.7vw, 36px);
  line-height: 1.18;
}

.part3-response-heading > p {
  max-width: 410px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.part3-model-list {
  display: grid;
  gap: 14px;
}

.part3-model-card {
  overflow: clip;
  border: 1px solid rgba(23, 105, 170, .14);
  border-radius: 22px;
  background: rgba(255, 255, 255, .78);
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.part3-model-card.is-open {
  border-color: rgba(19, 130, 126, .32);
  background: var(--paper-solid);
  box-shadow: 0 18px 42px rgba(26, 54, 78, .1);
}

.part3-model-toggle {
  display: grid;
  width: 100%;
  min-height: 92px;
  grid-template-columns: 58px minmax(0, 1fr) 34px;
  align-items: center;
  gap: 16px;
  border: 0;
  padding: 17px 20px;
  color: var(--ink);
  text-align: left;
  background: transparent;
  cursor: pointer;
}

.part3-model-toggle:hover,
.part3-model-toggle:focus-visible {
  background: rgba(226, 245, 242, .48);
}

.part3-model-letter {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 17px;
  color: #fff;
  background: linear-gradient(145deg, #167e89, #0a4f68);
  box-shadow: 0 8px 18px rgba(10, 79, 104, .18);
  font-size: 24px;
  font-weight: 900;
}

.part3-model-title {
  min-width: 0;
}

.part3-model-title small,
.part3-model-title em {
  display: block;
  color: var(--teal-deep);
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
  letter-spacing: .07em;
}

.part3-model-title strong {
  display: -webkit-box;
  margin: 4px 0 3px;
  overflow: hidden;
  color: var(--blue-deep);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.42;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.part3-model-title em {
  color: var(--muted);
  letter-spacing: 0;
}

.part3-model-chevron {
  color: var(--teal);
  font-size: 27px;
  text-align: center;
  transform: rotate(-90deg);
  transition: transform .18s ease;
}

.part3-model-card.is-open .part3-model-chevron {
  transform: rotate(0);
}

.part3-model-panel {
  border-top: 1px solid var(--line);
  padding: clamp(18px, 2.8vw, 31px);
}

.part3-model-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 25px;
  border-radius: 17px;
  padding: 11px 13px;
  background: linear-gradient(135deg, rgba(226, 245, 242, .78), rgba(229, 242, 250, .7));
}

.part3-model-toolbar > span {
  color: var(--muted);
  font-size: 11px;
}

.part3-listen-button {
  min-width: 154px;
  min-height: 44px;
  border: 0;
  border-radius: 999px;
  padding: 9px 15px;
  color: #fff;
  background: linear-gradient(135deg, #188a83, #075d68);
  box-shadow: 0 5px 0 #06434b;
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
}

.part3-listen-button.is-playing {
  background: linear-gradient(135deg, #d07942, #a44c38);
  box-shadow: 0 5px 0 #7e3729;
}

.part3-listen-button:disabled {
  opacity: .55;
  cursor: not-allowed;
  box-shadow: none;
}

.part3-step-list {
  max-width: 920px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.part3-step {
  position: relative;
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: 28px;
}

.part3-step:not(:last-child)::before {
  content: "";
  position: absolute;
  top: 45px;
  bottom: 2px;
  left: 24px;
  width: 2px;
  background: linear-gradient(var(--teal-soft), var(--blue-soft));
}

.part3-step-marker {
  position: relative;
  z-index: 1;
  display: grid;
  width: 50px;
  height: 50px;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(145deg, #188a83, #0a4f68);
  box-shadow: 0 8px 18px rgba(10, 79, 104, .15);
  font-size: 15px;
  font-weight: 900;
}

.part3-step.stage-example .part3-step-marker {
  background: linear-gradient(145deg, #b37a25, #8e5b17);
}

.part3-step.stage-conclusion .part3-step-marker {
  background: linear-gradient(145deg, #c9614f, #963d36);
}

.part3-step-copy {
  min-width: 0;
  border-bottom: 1px solid rgba(29, 71, 107, .1);
  padding-bottom: 27px;
}

.part3-step:last-child,
.part3-step:last-child .part3-step-copy {
  padding-bottom: 0;
  border-bottom: 0;
}

.part3-step-heading {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin-bottom: 9px;
}

.part3-step-heading strong {
  color: var(--teal-deep);
  font-size: 13px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.part3-step-heading span {
  color: var(--muted);
  font-size: 12px;
}

.part3-step-en {
  max-width: 72ch;
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", "Edmund Serif TC", serif;
  font-size: clamp(17px, 1.42vw, 20px);
  font-weight: 500;
  line-height: 1.78;
}

.part3-translation {
  margin-top: 12px;
  border: 1px solid rgba(23, 105, 170, .1);
  border-radius: 14px;
  background: rgba(229, 242, 250, .38);
}

.part3-translation summary {
  min-height: 44px;
  padding: 11px 14px;
  color: var(--blue-deep);
  cursor: pointer;
  font-size: 12px;
  font-weight: 900;
}

.part3-translation p {
  margin: 0;
  border-top: 1px solid rgba(23, 105, 170, .1);
  padding: 14px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 560;
  line-height: 1.8;
}

.part3-exercise-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  max-width: var(--part3-reading-width);
  margin-inline: auto;
}

.part3-exercise-nav button:last-child {
  justify-self: end;
}

.admin-unsaved-badge {
  justify-self: start;
  border-radius: 999px;
  padding: 3px 7px;
  color: #7a3e00;
  background: #ffe7b1;
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
}

.admin-save-bar {
  position: sticky;
  bottom: 10px;
  z-index: 8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  border: 1px solid rgba(23, 105, 170, .14);
  border-radius: 18px;
  padding: 13px 15px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 14px 34px rgba(26, 54, 78, .13);
}

.admin-save-bar.is-dirty {
  border-color: rgba(179, 122, 37, .35);
  background: #fffaf0;
}

.admin-save-status {
  max-width: 620px;
}

.admin-save-status.is-dirty {
  color: #7a4c0c;
  font-weight: 800;
}

.admin-save-actions {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.admin-save-actions button {
  min-height: 42px;
  padding: 8px 14px;
  font-size: 12px;
}

.admin-save-button {
  box-shadow: 0 5px 0 #06434b;
}

@media (max-width: 820px) {
  .part3-reading-guide {
    grid-template-columns: 1fr;
  }

  .part3-response-heading,
  .part3-model-toolbar,
  .admin-save-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .part3-response-heading > p {
    max-width: none;
  }

  .part3-model-toolbar > span {
    text-align: center;
  }

  .part3-listen-button,
  .admin-save-actions,
  .admin-save-actions button {
    width: 100%;
  }
}

@media (max-width: 540px) {
  .part3-hero-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .part3-model-toggle {
    min-height: 84px;
    grid-template-columns: 48px minmax(0, 1fr) 24px;
    gap: 11px;
    padding: 14px;
  }

  .part3-model-letter {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    font-size: 20px;
  }

  .part3-model-title em {
    display: none;
  }

  .part3-model-panel {
    padding: 17px 14px;
  }

  .part3-step {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    padding-bottom: 20px;
  }

  .part3-step-marker {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .part3-step:not(:last-child)::before {
    top: 36px;
    left: 18px;
  }

  .part3-step-copy {
    padding-bottom: 19px;
  }

  .part3-step-en {
    font-size: 17px;
    line-height: 1.76;
  }

  .part3-translation p {
    font-size: 15px;
  }

  .part3-exercise-nav {
    grid-template-columns: 1fr 1fr;
  }

  .part3-exercise-nav button:nth-child(2) {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

@media print {
  .site-header,
  .breadcrumbs,
  .audio-panel,
  .recorder-card,
  .recorder-card-anchor,
  .part1-animation-toggle,
  .part1-message-audio,
  .part3-reading-guide,
  .part3-model-toolbar,
  .part3-exercise-nav,
  .toast-region {
    display: none !important;
  }

  .exercise-view.has-floating-recorder {
    padding-bottom: 0 !important;
  }

  body {
    background: #fff;
  }

  .site-shell {
    width: 100%;
  }

  .response-grid {
    grid-template-columns: 1fr;
  }

  .response-card,
  .cue-card,
  .exercise-hero {
    break-inside: avoid;
    box-shadow: none;
  }

  .part1-row .part1-message {
    width: 100%;
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
    box-shadow: none;
  }

  .part3-model-panel[hidden],
  .part3-translation:not([open]) > *:not(summary) {
    display: block !important;
  }

  .part3-translation summary {
    display: none !important;
  }
}