.group-tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 128px), 1fr));
  gap: 13px;
}

.exam-sidebar nav i {
  background: linear-gradient(135deg, var(--theme-accent), var(--theme-accent-dark));
}

#course-list {
  display: grid;
  gap: 12px;
}

.qr-payment > :is(img, .qr-loading, .demo-qr) {
  width: min(320px, 100%);
  height: auto;
  aspect-ratio: 1;
  flex: none;
}

.group-detail {
  max-width: 940px;
  margin: 0 auto 16px;
  padding: 16px 20px;
}

#group-page .purchase-header {
  height: 49px;
}

.group-detail .section-heading {
  align-items: center;
  margin-bottom: 10px;
}

.group-detail .section-heading h2 {
  margin: 3px 0;
  font-size: 20px;
}

@media (min-width: 1180px) {
  #group-page > .purchase-header {
    position: absolute;
    top: 0;
    left: max(22px, calc((100vw - 1320px) / 2));
    right: max(22px, calc((100vw - 1320px) / 2));
    height: 49px;
    flex-wrap: nowrap;
    justify-content: space-between;
    gap: 12px;
  }

  #group-page .group-detail {
    width: calc(100% - 150px);
    margin-top: 32px;
    margin-left: max(150px, calc((100% - 940px) / 2));
  }
}

#group-page .course-card {
  grid-template-columns: 76px minmax(0, 1fr) 100px;
  gap: 14px;
  padding: 10px;
  border: 1px solid #e7c8a8;
  border-radius: 14px;
  box-shadow: none;
  transform: none;
}

#group-page .course-cover {
  min-height: 86px;
  padding: 10px;
  border-radius: 10px;
}

#group-page .course-cover > strong {
  font-size: 11px;
  line-height: 1.4;
}

#group-page .course-copy h3 {
  margin: 5px 0 4px;
}

#group-page .course-price > strong {
  font-size: 26px;
}

#group-actions {
  margin-top: 16px;
}

.group-progress-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin-top: 10px;
  padding: 12px;
  border: 1px solid #f2e1d2;
  border-radius: 18px;
  background: linear-gradient(135deg, #fdf6ef, #fefbf8);
}

.group-progress-card .hero-card__progress {
  grid-column: 1;
  height: 6px;
  margin-top: 0;
}

.group-progress-card__head {
  grid-column: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.group-progress-card__head strong {
  color: #432d1b;
  font-size: 16px;
}

.group-progress-card__head span {
  color: var(--theme-accent);
  font-size: 12px;
  font-weight: 800;
}

.group-members {
  grid-column: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 0;
}

.group-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  width: 58px;
  color: #725742;
  font-size: 10px;
}

.group-member__avatar {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px dashed #e9d2bd;
  border-radius: 50%;
  color: var(--theme-accent);
  background: #fff;
  font-size: 10px;
  white-space: nowrap;
  font-weight: 850;
}

.group-member__avatar.is-paid {
  border: 0;
  color: #fff;
  background: linear-gradient(135deg, var(--theme-accent), var(--theme-accent-dark));
}

.group-member__avatar.is-empty {
  color: #a38a75;
  background: #fdf9f5;
}

.share-box {
  display: grid;
  grid-column: 1;
  grid-template-columns: auto minmax(0, 1fr);
  align-content: center;
  gap: 6px;
  margin-top: 0;
  padding: 10px;
  border: 1px dashed #ebcbaa;
  border-radius: 14px;
  background: #fff;
}

.share-box__label {
  align-self: center;
  color: #816956;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  white-space: nowrap;
}

.share-box__row {
  grid-column: 1 / -1;
  min-width: 0;
  display: flex;
  gap: 8px;
}

#group-actions {
  grid-column: 1 / -1;
  margin-top: 0;
}

#group-actions:empty {
  display: none;
}

#group-materials .success-materials {
  gap: 20px;
  margin-top: 10px;
  padding: 14px 20px;
}

#group-materials .success-materials-copy {
  padding-left: 20px;
}

#group-materials .success-materials-copy h2 {
  font-size: clamp(20px, 2vw, 26px);
}

#group-materials .success-materials-copy p {
  margin-top: 8px;
  font-size: 14px;
}

.share-box__row input {
  min-width: 0;
  flex: 1;
  height: 42px;
  padding: 0 12px;
  border: 1px solid #eadbcd;
  border-radius: 11px;
  color: #634a38;
  background: #fff;
  font-size: 14px;
}

.share-box__row button,
.ghost-action {
  flex: none;
  height: 42px;
  padding: 0 14px;
  border: 0;
  border-radius: 11px;
  color: #fff;
  background: var(--theme-cta);
  font-size: 12px;
  font-weight: 750;
  cursor: pointer;
}

.ghost-action {
  color: var(--theme-accent);
  background: #fdf6f0;
}

.group-status-pill {
  display: inline-flex;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 850;
  white-space: nowrap;
}

.group-status-pill--wait { color: #966817; background: #fff9e9; }
.group-status-pill--forming { color: var(--theme-accent); background: #fdf6f0; }
.group-status-pill--success { color: #126c4b; background: #dcfaec; }
.group-status-pill--fail { color: #a33b22; background: #ffece7; }

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

.join-code-bar {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.join-code-bar input {
  min-width: 0;
  flex: 1;
  height: 44px;
  padding: 0 12px;
  border: 1px solid #eadbcd;
  border-radius: 12px;
  color: #634a38;
  background: #fff;
  font-size: 14px;
}

.purchase-hero .hero-card--float {
  top: 28px;
  right: 8%;
  z-index: 4;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-width: 132px;
  padding: 16px 20px 14px;
  border: 0;
  border-radius: 20px;
  color: #7a4300;
  background: linear-gradient(145deg, #ffe9a8, #ffd056 55%, #ffbf3a);
  box-shadow: 0 18px 40px #c489004d, inset 0 1px #fff8;
  transform: rotate(6deg);
}

.purchase-hero .hero-card--float b {
  color: #8a4f00;
  font-size: 16px;
  font-weight: 850;
  letter-spacing: .04em;
  line-height: 1.2;
}

.purchase-hero .hero-card--float span {
  color: #e23a16;
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: .95;
}

.hidden { display: none !important; }

.group-join-hint {
  margin: 0 0 12px;
  color: #745a47;
  font-size: 12px;
  line-height: 1.6;
}

.course-card.has-my-group .course-cover em {
  color: var(--theme-accent);
  background: #fdf6f0;
}

.my-group-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  margin-bottom: 10px;
  padding: 16px 18px;
  border: 1px solid #f2e1d2;
  border-radius: 16px;
  color: inherit;
  text-align: left;
  background: linear-gradient(135deg, #fff8ef, #fff);
  cursor: pointer;
}

.my-group-card:last-child {
  margin-bottom: 0;
}

.my-group-card strong {
  display: block;
  margin: 8px 0 4px;
  color: #432d1b;
  font-size: 15px;
}

.my-group-card p {
  margin: 0;
  color: #816956;
  font-size: 12px;
}

.my-group-card__right {
  flex: none;
  display: grid;
  gap: 6px;
  justify-items: end;
}

.my-group-card__right small {
  color: var(--theme-accent);
  font-size: 11px;
  font-weight: 750;
}

.my-group-card__right b {
  color: var(--theme-accent);
  font-size: 12px;
}

.h5-payment .primary-action {
  margin: 0 auto 8px;
  max-width: 240px;
}

.checkout-product > div:nth-child(2) {
  min-width: 0;
}

.checkout-product__price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: flex-end;
  column-gap: 1px;
  min-width: 0;
  text-align: right;
  white-space: nowrap;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.checkout-product__price:before {
  flex: 0 0 100%;
}

.checkout-product__price span,
.checkout-product__price small {
  display: inline;
}

.course-card {
  grid-template-columns: 130px minmax(0, 1fr) minmax(148px, max-content);
}

.course-price > strong,
.membership-card__price,
.order-summary__price strong,
.mobile-buybar strong {
  white-space: nowrap;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.membership-card {
  container-type: inline-size;
}

.membership-card__price {
  font-size: clamp(22px, 16cqi, 34px);
}

.success-materials {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 22px;
  padding: 24px 36px;
  border-radius: 22px;
  background: linear-gradient(130deg, #fff5ed, #fae2d5);
}

.payment-return-sheet .success-materials {
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
  padding: 24px 18px;
}

.payment-return-sheet .success-materials-icon {
  display: none;
}

.payment-return-sheet .success-materials-copy {
  flex-basis: 100%;
  padding: 0;
  border: 0;
  text-align: center;
}

.success-materials-icon {
  display: grid;
  width: 76px;
  height: 76px;
  flex: none;
  place-items: center;
  border-radius: 22px;
  color: #fff;
  background: var(--theme-cta);
}

.success-materials-icon svg {
  width: 46px;
  height: 46px;
}

.success-materials-copy {
  min-width: 0;
  flex: 1;
  padding-left: 28px;
  border-left: 1px solid #dfaf93;
}

.success-materials-copy h2 {
  margin: 0;
  font-size: clamp(20px, 2.3vw, 29px);
  line-height: 1.5;
}

.success-materials-copy em {
  color: var(--theme-accent);
  font-style: normal;
}

.success-materials-copy p {
  margin: 12px 0 0;
  color: #656565;
  font-size: 17px;
  line-height: 1.6;
}

.success-simple-qr {
  position: relative;
  width: 136px;
  aspect-ratio: 1;
  flex: none;
  overflow: hidden;
  border-radius: 14px;
  background: #fff;
  filter: grayscale(1) brightness(0.65) contrast(20);
}

/* 与购买成功页一致，仅展示海报里的二维码区域。 */
.success-simple-qr img {
  position: absolute;
  width: 135.14%;
  max-width: none;
  height: auto;
  top: -57.25%;
  left: -17.57%;
}

@media (max-width: 1080px) {
  #app, #group-page {
    padding-bottom: calc(88px + env(safe-area-inset-bottom));
  }
  .mobile-buybar button {
    flex: none;
    min-height: 44px;
  }
  .mobile-buybar span {
    color: #765d4b;
    font-size: 11px;
  }
  #group-actions .summary-pay-button {
    display: none;
  }
}

@media (max-width: 760px) {
  .success-materials {
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px;
    margin-top: 14px;
    padding: 24px 18px;
  }
  .success-materials-icon {
    display: none;
  }
  .success-materials-copy {
    flex-basis: 100%;
    padding: 0;
    border: 0;
    text-align: center;
  }
  .success-materials-copy p {
    font-size: 14px;
  }
  .success-simple-qr {
    width: min(210px, 100%);
  }
  .group-tier-grid {
    gap: 10px;
  }
  .group-tier-grid .membership-card {
    padding-right: 8px;
    padding-left: 8px;
  }
  .rule-list {
    grid-template-columns: 1fr;
  }
  .course-card {
    grid-template-columns: 92px minmax(0, 1fr);
  }
  .join-code-bar {
    flex-wrap: wrap;
  }
  .join-code-bar input {
    flex-basis: 124px;
  }
  .join-code-bar .ghost-action {
    height: 44px;
  }
  .purchase-hero {
    min-height: auto;
  }
  .purchase-hero__copy {
    padding: 28px 22px 6px;
  }
  .purchase-hero h1 {
    font-size: clamp(28px, 8vw, 38px);
  }
  .hero-promises {
    gap: 7px 14px;
    margin-top: 15px;
    font-size: 11px;
  }
  .hero-visual {
    position: relative;
    inset: auto;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    min-height: 0;
    gap: 8px;
    padding: 14px 16px 18px;
  }
  .hero-visual .hero-card,
  .purchase-hero .hero-card--float {
    position: relative;
    inset: auto;
    width: auto;
    min-width: 0;
    padding: 11px 12px;
    border-radius: 13px;
    transform: none;
    overflow-wrap: anywhere;
  }
  .hero-card--main {
    grid-row: span 2;
    align-content: center;
  }
  .hero-card--main .hero-card__progress {
    margin-top: 9px;
  }
  .purchase-hero .hero-card--float {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
  }
  .purchase-hero .hero-card--float b {
    font-size: 13px;
  }
  .purchase-hero .hero-card--float span {
    font-size: 25px;
  }
  .hero-card--course b {
    font-size: 11px;
  }
  #group-page .back-link {
    display: inline;
  }
  .group-progress-card {
    padding: 14px;
  }
  .group-progress-card__head {
    flex-wrap: wrap;
    gap: 5px 12px;
  }

  #group-page .group-detail {
    padding: 16px;
  }

  #group-page .purchase-header {
    height: 49px;
  }

  #group-page .course-card {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 4px 12px;
  }

  #group-page .course-cover {
    grid-row: 1 / 3;
    min-height: 84px;
    padding: 8px;
  }

  #group-page .course-copy {
    padding: 0;
  }

  #group-page .course-price {
    grid-column: 2;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: baseline;
    gap: 8px;
    padding: 0;
    border: 0;
  }

  #group-page .course-price > strong {
    font-size: 22px;
  }

  .group-progress-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    padding: 12px;
  }

  .group-progress-card .share-box {
    grid-column: 1;
    grid-row: auto;
    padding: 10px;
  }

  .share-box__row input,
  .share-box__row button {
    height: 36px;
  }

  #group-materials .success-materials {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 132px;
    gap: 12px;
    padding: 16px 14px;
  }

  #group-materials .success-materials-copy {
    padding: 0;
    text-align: left;
  }

  #group-materials .success-materials-copy h2 {
    font-size: 18px;
  }

  #group-materials .success-materials-copy p {
    font-size: 12px;
  }

  #group-materials .success-simple-qr {
    width: 132px;
  }
}