.page-contact {
  --contact-frame-bg: #0d0d24;
  --contact-border-accent: #e63946;
  --contact-border-sub: #2b2d42;
  --contact-card-radius: 4px;
  --contact-form-border: dashed 1.5px #2b2d42;
  --contact-grid-gap: 2rem;
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  color: var(--text-white, #ffffff);
}

/* breadcrumb */
.page-contact .breadcrumb {
  padding: 0.75rem 0 1.5rem;
  font-size: 0.875rem;
}
.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .breadcrumb__link {
  color: var(--text-gray, #8d99ae);
  text-decoration: none;
  transition: color var(--transition-fast, 0.2s);
}
.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--accent-red, #e63946);
}
.page-contact .breadcrumb__sep {
  color: var(--border-light, #2b2d42);
}
.page-contact .breadcrumb__current {
  color: var(--text-white, #ffffff);
  font-weight: 500;
}

/* section hero */
.page-contact .section--contact-hero {
  margin-bottom: 2rem;
  border-left: 3px solid var(--accent-red, #e63946);
  padding-left: 1.25rem;
}
.page-contact .section--contact-hero .section__header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.page-contact .section--contact-hero .section__number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-red, #e63946);
  line-height: 1;
  letter-spacing: -0.04em;
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
}
.page-contact .section--contact-hero .section__title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  color: var(--text-white, #ffffff);
}
.page-contact .section--contact-hero .section__subtitle {
  font-size: 1rem;
  color: var(--text-gray, #8d99ae);
  margin: 0.25rem 0 0;
  max-width: 480px;
}

/* contact grid */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-grid-gap);
  margin-bottom: 3rem;
}

/* contact info card */
.page-contact .contact-info__frame {
  position: relative;
  background: var(--contact-frame-bg);
  border: 1.5px solid var(--contact-border-sub);
  border-radius: var(--contact-card-radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.page-contact .contact-info__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.12;
  pointer-events: none;
}
.page-contact .contact-info__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-contact .contact-info__content {
  position: relative;
  z-index: 1;
  padding: 1.75rem 1.5rem;
}
.page-contact .contact-info__heading {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  color: var(--text-white, #ffffff);
  margin: 0 0 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--accent-red, #e63946);
  display: inline-block;
}
.page-contact .contact-info__list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.page-contact .contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.page-contact .contact-info__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(230, 57, 70, 0.12);
  border-radius: 4px;
}
.page-contact .contact-info__icon-img {
  width: 40px;
  height: 40px;
  display: block;
  object-fit: contain;
}
.page-contact .contact-info__icon--svg {
  background: rgba(249, 199, 79, 0.1);
}
.page-contact .contact-info__svg {
  width: 22px;
  height: 22px;
  color: var(--accent-yellow, #f9c74f);
}
.page-contact .contact-info__detail {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.page-contact .contact-info__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-gray, #8d99ae);
  font-weight: 500;
}
.page-contact .contact-info__value {
  font-size: 1rem;
  color: var(--text-white, #ffffff);
  word-break: break-all;
  line-height: 1.4;
}
.page-contact .contact-info__value--link {
  color: var(--accent-red, #e63946);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(230, 57, 70, 0.35);
  transition: text-decoration-color var(--transition-fast, 0.2s);
}
.page-contact .contact-info__value--link:hover,
.page-contact .contact-info__value--link:focus-visible {
  text-decoration-color: var(--accent-red, #e63946);
}
.page-contact .contact-info__note {
  font-size: 0.875rem;
  color: var(--text-gray, #8d99ae);
  background: rgba(230, 57, 70, 0.06);
  border-left: 3px solid var(--accent-red, #e63946);
  padding: 0.75rem 1rem;
  margin: 0 0 1.5rem;
  line-height: 1.5;
}
.page-contact .contact-info__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* contact form */
.page-contact .contact-form__frame {
  background: var(--contact-frame-bg);
  border: var(--contact-form-border);
  border-radius: var(--contact-card-radius);
  padding: 1.75rem 1.5rem;
}
.page-contact .contact-form__heading {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  color: var(--text-white, #ffffff);
  margin: 0 0 0.35rem;
}
.page-contact .contact-form__desc {
  font-size: 0.9rem;
  color: var(--text-gray, #8d99ae);
  margin: 0 0 1.5rem;
  line-height: 1.5;
}
.page-contact .contact-form__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.page-contact .contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.page-contact .contact-form__label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-white, #ffffff);
  letter-spacing: 0.02em;
}
.page-contact .contact-form__input,
.page-contact .contact-form__textarea {
  background: transparent;
  border: 1.5px solid var(--border-light, #2b2d42);
  border-radius: 2px;
  padding: 0.7rem 0.9rem;
  font-size: 1rem;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  color: var(--text-white, #ffffff);
  transition: border-color var(--transition-fast, 0.2s), box-shadow var(--transition-fast, 0.2s);
  outline: none;
}
.page-contact .contact-form__input::placeholder,
.page-contact .contact-form__textarea::placeholder {
  color: rgba(141, 153, 174, 0.5);
}
.page-contact .contact-form__input:focus,
.page-contact .contact-form__textarea:focus {
  border-color: var(--accent-red, #e63946);
  box-shadow: 0 0 0 2px rgba(230, 57, 70, 0.15);
}
.page-contact .contact-form__textarea {
  resize: vertical;
  min-height: 100px;
}
.page-contact .contact-form__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  padding-top: 0.35rem;
}
.page-contact .contact-form__hint {
  font-size: 0.8rem;
  color: var(--text-gray, #8d99ae);
  font-style: italic;
}
.page-contact .contact-form .btn--primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* other channels section */
.page-contact .section--other-channels {
  margin-top: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light, #2b2d42);
}
.page-contact .section--other-channels .section__header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.page-contact .section--other-channels .section__number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-yellow, #f9c74f);
  line-height: 1;
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
}
.page-contact .section--other-channels .section__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  color: var(--text-white, #ffffff);
}

/* card link */
.page-contact .card--link {
  display: block;
  background: var(--contact-frame-bg);
  border: 1px solid var(--border-light, #2b2d42);
  border-radius: var(--contact-card-radius);
  padding: 1.25rem;
  text-decoration: none;
  transition: border-color var(--transition-fast, 0.2s), transform var(--transition-fast, 0.2s);
}
.page-contact .card--link:hover,
.page-contact .card--link:focus-visible {
  border-color: var(--accent-red, #e63946);
  transform: translateY(-2px);
}
.page-contact .card__body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.page-contact .card__title {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  color: var(--text-white, #ffffff);
  margin: 0;
}
.page-contact .card__text {
  font-size: 0.9rem;
  color: var(--text-gray, #8d99ae);
  margin: 0;
  line-height: 1.5;
}
.page-contact .card__arrow {
  align-self: flex-end;
  font-size: 1.25rem;
  color: var(--accent-red, #e63946);
  margin-top: 0.35rem;
}

/* grid-2 */
.page-contact .grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

/* reveal animation */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--transition-reveal, 0.5s cubic-bezier(0.23, 1, 0.32, 1)), transform var(--transition-reveal, 0.5s cubic-bezier(0.23, 1, 0.32, 1));
}
.page-contact [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* media queries */
@media (min-width: 640px) {
  .page-contact {
    padding: 1.5rem 1.5rem 3rem;
  }
  .page-contact .contact-form__body {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .contact-form__field--full {
    grid-column: 1 / -1;
  }
  .page-contact .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 900px) {
  .page-contact {
    padding: 2rem 2rem 4rem;
  }
  .page-contact .contact-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
  .page-contact .section--contact-hero .section__number {
    font-size: 4rem;
  }
  .page-contact .section--contact-hero .section__title {
    font-size: 2.5rem;
  }
  .page-contact .contact-info__content {
    padding: 2.25rem 2rem;
  }
  .page-contact .contact-form__frame {
    padding: 2.25rem 2rem;
  }
}
@media (min-width: 1100px) {
  .page-contact .contact-grid {
    gap: 2.5rem;
  }
}