/* 常见问题：桌面 1440 × 1193，移动 375 × 1257。 */
.help-page {
  min-height: 100vh;
  padding-top: 72px;
  background: var(--bg);
}

.help-page .site-header {
  background: var(--bg);
  border-bottom-color: var(--line-soft);
}

.help-page .site-header__login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding-inline: 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff4a7b 15%, #ec237f 51%, #93226f 85%);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
}

.help-main {
  width: min(calc(100% - 48px), var(--page-width));
  margin: 0 auto;
}

.help-heading {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 48px 0 8px;
}

.help-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--accent-hot);
  font-size: 13px;
  font-weight: 500;
  line-height: 18px;
  letter-spacing: .12em;
}

.help-kicker span {
  width: 18px;
  height: 2px;
  flex: none;
  background: var(--accent);
}

.help-heading h1 {
  margin: 0;
  color: var(--text);
  font-size: 28px;
  font-weight: 600;
  line-height: 36px;
  letter-spacing: -.01em;
}

.help-heading__intro {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 24px;
}

.help-content {
  display: grid;
  grid-template-columns: minmax(0, 784px) minmax(0, 376px);
  gap: 40px;
  padding: 24px 0 48px;
}

.help-faq,
.help-aside {
  min-width: 0;
}

.help-faq__item {
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
}

.help-faq__item:last-child {
  border-bottom: 0;
}

.help-faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-muted);
  font-size: 16px;
  font-weight: 600;
  line-height: 22px;
  list-style: none;
  cursor: pointer;
}

.help-faq__item summary::-webkit-details-marker {
  display: none;
}

.help-faq__item[open] summary {
  color: var(--text);
}

.help-faq__item summary:focus-visible {
  outline: 2px solid var(--accent-hot);
  outline-offset: 4px;
}

.help-faq__chevron {
  display: block;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  background: url('/static/images/chevron-right.svg') center / 18px no-repeat;
  opacity: .75;
  transform: rotate(90deg);
}

.help-faq__item[open] .help-faq__chevron {
  transform: rotate(-90deg);
}

.help-faq__item p {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 22px;
}

.help-aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.help-contact,
.help-app {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
}

.help-contact {
  gap: 14px;
  padding: 24px;
  background: var(--bg-elevated);
}

.help-contact h2,
.help-app h2 {
  margin: 0;
  color: var(--text);
  font-size: 18px;
  font-weight: 600;
  line-height: 26px;
}

.help-contact p,
.help-app p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 20px;
}

.help-contact__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 48px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff4a7b 15%, #ec237f 51%, #93226f 85%);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  line-height: 22px;
}

.help-contact__button img {
  width: 20px;
  height: 20px;
}

.help-contact__email {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-hot);
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
}

.help-contact__email img,
.help-app a img {
  width: 16px;
  height: 16px;
}

.help-app {
  gap: 12px;
  padding: 24px;
  background: var(--bg-panel);
}

.help-app a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 14px;
  line-height: 20px;
}

.help-contact__button:hover,
.help-app a:hover {
  filter: brightness(1.1);
}

.help-contact__button:focus-visible,
.help-app a:focus-visible,
.help-contact__email:focus-visible {
  outline: 2px solid var(--accent-hot);
  outline-offset: 3px;
}

.help-page .site-footer__legal {
  flex-direction: row;
  justify-content: space-between;
  gap: 24px;
}

@media (min-width: 769px) {
  .help-page .site-footer__rule {
    margin-top: 8px;
  }
}

@media (min-width: 769px) and (max-width: 1199px) {
  .help-page .site-header {
    height: 72px;
    padding-block: 0;
    flex-wrap: nowrap;
  }

  .help-page .site-header__left,
  .help-page .site-header__right {
    width: auto;
  }

  .help-page .site-header .search {
    width: min(260px, 30vw);
  }
}

@media (min-width: 769px) and (max-width: 1100px) {
  .help-page .site-header .nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .help-page {
    padding-top: 0;
  }

  .help-page .site-header {
    display: none;
  }

  .help-page .page-subheader {
    display: flex;
  }

  .help-main {
    width: 100%;
    padding-top: 56px;
  }

  .help-heading {
    gap: 8px;
    padding: 20px 16px 4px;
  }

  .help-heading h1 {
    font-size: 22px;
    line-height: 30px;
  }

  .help-heading__intro {
    font-size: 13px;
    line-height: 20px;
  }

  .help-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 4px 16px 20px;
  }

  .help-faq__item summary {
    font-size: 16px;
    line-height: 22px;
  }

  .help-faq__item p {
    font-size: 14px;
    line-height: 22px;
  }

  .help-aside {
    display: block;
  }

  .help-contact {
    gap: 10px;
    padding: 18px;
    border-radius: 12px;
  }

  .help-contact h2 {
    font-size: 16px;
    line-height: 22px;
  }

  .help-contact__button {
    height: 40px;
    font-size: 14px;
    line-height: 20px;
  }

  .help-contact__button img {
    width: 18px;
    height: 18px;
  }

  .help-contact p {
    font-size: 12px;
    line-height: 18px;
  }

  .help-contact__email,
  .help-app {
    display: none;
  }

  .help-page .site-footer__inner {
    padding: 32px 16px 28px;
    gap: 18px;
  }

  .help-page .site-footer__brand {
    gap: 18px;
  }

  .help-page .site-footer__links {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .help-page .footer-col {
    flex-wrap: nowrap;
  }

  .help-page .footer-col:first-child,
  .help-page .footer-col:nth-child(2) a:last-child,
  .help-page .footer-col:nth-child(3) a:last-child {
    display: none;
  }

  .help-page .footer-download {
    display: flex;
    flex-basis: 100%;
    justify-content: center;
    padding: 0;
    border: 0;
    background: none;
  }

  .help-page .footer-download .qr-box,
  .help-page .footer-download__copy strong,
  .help-page .footer-download__copy p,
  .help-page .footer-download__copy .icon {
    display: none;
  }

  .help-page .footer-download .btn {
    height: 20px;
    padding: 0;
    color: var(--text-muted);
    background: none;
    font-size: 13px;
    line-height: 20px;
  }

  .help-page .site-footer__rule {
    display: none;
  }

  .help-page .site-footer__legal {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .help-page .site-footer__legal p:first-child {
    order: 2;
    width: 100%;
    padding-top: 16px;
    margin-top: 16px;
    border-top: 1px solid var(--line-soft);
  }

  .help-page .site-footer__legal p:last-child {
    order: 1;
  }

  .help-page .site-footer__adult,
  .help-page .site-footer__rights {
    display: none;
  }

  .help-page .site-footer__mobile-adult {
    display: inline;
  }
}