.page-contact {
  --contact-red: #C9372E;
  --contact-orange: #E4652F;
  --contact-space: #0A1E3C;
  --contact-space-deep: #16335B;
  --contact-cream: #F5F0E6;
  --contact-ink: #2B211C;
  --contact-metal: #8A93A5;
  --contact-info: #D9E3EF;
  background: var(--contact-cream);
  color: var(--contact-ink);
  font-family: var(--font-body, "Noto Sans SC", "Microsoft YaHei", sans-serif);
  font-weight: 300;
  min-height: 100vh;
  overflow-x: hidden;
}

.page-contact .content-container {
  width: 100%;
  max-width: var(--content-width, 1200px);
  margin: 0 auto;
  padding-left: var(--gutter, 24px);
  padding-right: var(--gutter, 24px);
  box-sizing: border-box;
}

.page-contact .breadcrumbs {
  padding: 64px 0 0;
  max-width: var(--content-width, 1200px);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  box-sizing: border-box;
}

.page-contact .breadcrumbs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-contact .breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  font-family: var(--font-mono, "JetBrains Mono", monospace);
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--contact-metal);
  font-size: 12px;
}

.page-contact .breadcrumbs__link {
  color: var(--contact-metal);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-contact .breadcrumbs__link:hover {
  color: var(--contact-red);
}

.page-contact .breadcrumbs__link[aria-current="page"] {
  color: var(--contact-ink);
  font-weight: 500;
}

.page-contact .contact-hero {
  background: var(--contact-space);
  color: var(--cream);
  padding: 72px 0;
  margin: 0;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(201, 55, 46, 0.28) 0%, transparent 70%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__code {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--contact-orange);
  margin: 0 0 20px;
  padding: 4px 0 4px 14px;
  border-left: 2px solid var(--contact-red);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 34px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--contact-cream);
  margin: 0 0 20px;
  letter-spacing: 0.02em;
}

.page-contact .contact-hero__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-info);
  max-width: 560px;
  margin: 0 0 28px;
}

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-contact .contact-hero__meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--contact-metal);
  font-family: var(--font-mono, "JetBrains Mono", monospace);
}

.page-contact .contact-hero__meta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--contact-orange);
  display: inline-block;
}

.page-contact .contact-hero__visual {
  box-sizing: border-box;
}

.page-contact .contact-hero__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid rgba(245, 240, 230, 0.2);
  border-radius: 2px;
  object-fit: cover;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.2);
}

.page-contact .section-index {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}

.page-contact .section-index__num {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 15px;
  font-weight: 500;
  color: var(--contact-red);
  letter-spacing: 0.1em;
}

.page-contact .section-index__label {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--contact-metal);
  text-transform: uppercase;
}

.page-contact .section-index--light .section-index__num {
  color: var(--contact-orange);
}

.page-contact .section-index--light + h2 {
  color: var(--contact-cream);
}

.page-contact h2 {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 26px;
  line-height: 1.3;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--contact-ink);
}

.page-contact .contact-channels {
  background: var(--contact-cream);
  padding: 80px 0;
}

.page-contact .contact-channels__header {
  margin-bottom: 48px;
}

.page-contact .contact-channels__intro {
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-ink);
  max-width: 680px;
  margin: 0;
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-contact .contact-channels__table {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: #FFFFFF;
  border-left: 3px solid var(--contact-red);
  padding: 24px 28px;
  box-shadow: 0 2px 8px rgba(11, 30, 60, 0.06);
  transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.25s ease;
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11, 30, 60, 0.1);
}

.page-contact .channel-card:nth-child(2) {
  border-left-color: var(--contact-metal);
}

.page-contact .channel-card:nth-child(3) {
  border-left-color: var(--contact-space-deep);
}

.page-contact .channel-card--highlight {
  border-left-color: var(--contact-orange);
  background: var(--contact-info);
  box-shadow: 0 2px 8px rgba(228, 101, 47, 0.12);
}

.page-contact .channel-card__icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.page-contact .channel-card__body {
  flex: 1;
  min-width: 0;
}

.page-contact .channel-card__label {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 13px;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--contact-metal);
  margin: 0 0 6px;
  text-transform: uppercase;
}

.page-contact .channel-card__label--red {
  color: var(--contact-red);
}

.page-contact .channel-card__value {
  font-size: 17px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--contact-ink);
  margin: 0 0 8px;
  word-break: break-all;
}

.page-contact .channel-card__value--mono {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 16px;
  letter-spacing: 0.02em;
}

.page-contact .channel-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: #4a3b33;
  margin: 0;
  max-width: 560px;
}

.page-contact .channel-card__badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #fff;
  background: var(--contact-red);
  padding: 4px 10px;
  border-radius: 2px;
}

.page-contact .contact-channels__aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-contact .contact-tip {
  background: var(--contact-space);
  padding: 26px 26px 26px 30px;
  border-radius: 0 10px 10px 0;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-tip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--contact-orange);
}

.page-contact .contact-tip__index {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 12px;
  color: var(--contact-orange);
  letter-spacing: 0.15em;
  margin: 0 0 12px;
}

.page-contact .contact-tip__title {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--contact-cream);
  margin: 0 0 10px;
}

.page-contact .contact-tip__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--contact-info);
  margin: 0;
}

.page-contact .contact-prep {
  background: var(--contact-space);
  padding: 80px 0;
  color: var(--contact-cream);
}

.page-contact .contact-prep h2 {
  color: var(--contact-cream);
}

.page-contact .contact-prep__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
}

.page-contact .contact-prep__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-info);
  max-width: 640px;
  margin: 0 0 40px;
}

.page-contact .contact-prep__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-contact .contact-prep__step {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(245, 240, 230, 0.12);
}

.page-contact .contact-prep__step:first-child {
  border-top: 1px solid rgba(245, 240, 230, 0.12);
}

.page-contact .contact-prep__num {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 15px;
  font-weight: 500;
  color: var(--contact-orange);
  flex-shrink: 0;
  width: 36px;
  padding-top: 2px;
}

.page-contact .contact-prep__step-body h3 {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--contact-cream);
  margin: 0 0 8px;
}

.page-contact .contact-prep__step-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--contact-info);
  margin: 0;
}

.page-contact .contact-prep__aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-contact .contact-prep__panel {
  background: var(--contact-space-deep);
  border: 1px solid rgba(245, 240, 230, 0.1);
  border-radius: 2px;
  padding: 28px;
}

.page-contact .contact-prep__panel-label {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--contact-metal);
  margin: 0 0 16px;
  text-transform: uppercase;
}

.page-contact .contact-prep__sample {
  background: rgba(245, 240, 230, 0.05);
  border-left: 2px solid var(--contact-orange);
  padding: 18px 20px;
}

.page-contact .contact-prep__sample-code {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 14px;
  color: var(--contact-cream);
  margin: 0 0 10px;
  line-height: 1.6;
  word-break: break-all;
}

.page-contact .contact-prep__sample-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--contact-info);
  margin: 0;
}

.page-contact .contact-prep__panel-num {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 44px;
  font-weight: 700;
  color: var(--contact-orange);
  margin: 0 0 6px;
  line-height: 1;
}

.page-contact .contact-prep__panel-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--contact-info);
  margin: 0;
}

.page-contact .contact-response {
  background: var(--contact-cream);
  padding: 80px 0;
}

.page-contact .contact-response__header {
  margin-bottom: 44px;
}

.page-contact .contact-response__intro {
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-ink);
  max-width: 560px;
  margin: 0;
}

.page-contact .contact-response__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-contact .contact-response__timeline {
  padding: 0;
}

.page-contact .contact-response__row {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 18px 0;
  position: relative;
}

.page-contact .contact-response__row:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 86px;
  top: 48px;
  bottom: -2px;
  width: 1px;
  background: var(--contact-metal);
  opacity: 0.35;
}

.page-contact .contact-response__time {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 14px;
  font-weight: 500;
  color: var(--contact-red);
  width: 70px;
  flex-shrink: 0;
  text-align: right;
  padding-top: 2px;
}

.page-contact .contact-response__line {
  width: 10px;
  height: 10px;
  border: 2px solid var(--contact-red);
  border-radius: 50%;
  background: var(--contact-cream);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  margin-top: 6px;
}

.page-contact .contact-response__line--red {
  background: var(--contact-red);
}

.page-contact .contact-response__event {
  font-size: 14px;
  line-height: 1.7;
  color: var(--contact-ink);
  padding-top: 2px;
}

.page-contact .contact-response__visual {
  box-sizing: border-box;
}

.page-contact .contact-response__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 12px 36px rgba(11, 30, 60, 0.1);
  object-fit: cover;
}

.page-contact .contact-response__note {
  background: var(--contact-info);
  border-radius: 2px;
  padding: 22px 28px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-top: 44px;
  border-left: 4px solid var(--contact-red);
}

.page-contact .contact-response__note-icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.page-contact .contact-response__note-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--contact-ink);
  margin: 0;
}

.page-contact .contact-response__email {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  color: var(--contact-red);
  font-weight: 500;
  word-break: break-all;
}

.page-contact .contact-safety {
  background: var(--contact-cream);
  padding: 0 0 80px;
}

.page-contact .contact-safety__header {
  margin-bottom: 44px;
}

.page-contact .contact-safety__intro {
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-ink);
  max-width: 560px;
  margin: 0;
}

.page-contact .contact-safety__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .contact-safety__card {
  background: #fff;
  border: 1px solid rgba(43, 33, 28, 0.12);
  border-top: 3px solid var(--contact-red);
  padding: 32px 28px;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.25s ease;
}

.page-contact .contact-safety__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(11, 30, 60, 0.08);
}

.page-contact .contact-safety__shield {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
}

.page-contact .contact-safety__card h3 {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--contact-ink);
  margin: 0 0 12px;
}

.page-contact .contact-safety__card p {
  font-size: 14px;
  line-height: 1.75;
  color: #4a3b33;
  margin: 0;
}

.page-contact .contact-safety__domain,
.page-contact .contact-safety__icp {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-weight: 500;
  color: var(--contact-red);
}

.page-contact .contact-safety__notice {
  margin-top: 48px;
  background: var(--contact-space);
  display: flex;
  gap: 0;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-safety__notice-border {
  width: 6px;
  background: linear-gradient(180deg, var(--contact-red) 0%, var(--contact-orange) 100%);
  flex-shrink: 0;
}

.page-contact .contact-safety__notice-body {
  padding: 32px 36px;
  position: relative;
}

.page-contact .contact-safety__notice-body::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 160px;
  background: radial-gradient(circle at 100% 0%, rgba(228, 101, 47, 0.16) 0%, transparent 70%);
  pointer-events: none;
}

.page-contact .contact-safety__notice-label {
  font-family: var(--font-heading, "DIN Alternate", "Bahnschrift", "Noto Sans SC", sans-serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--contact-orange);
  margin: 0 0 10px;
  text-transform: uppercase;
}

.page-contact .contact-safety__notice-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--contact-info);
  margin: 0;
  max-width: 780px;
}

.page-contact .contact-relate {
  background: var(--contact-space);
  padding: 80px 0;
  color: var(--contact-cream);
}

.page-contact .contact-relate__inner {
  max-width: 800px;
}

.page-contact .contact-relate .section-index__num {
  color: var(--contact-orange);
}

.page-contact .contact-relate h2 {
  color: var(--contact-cream);
}

.page-contact .contact-relate__desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-info);
  margin: 0 0 32px;
  max-width: 520px;
}

.page-contact .contact-relate__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .contact-relate__link {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(245, 240, 230, 0.05);
  border-left: 2px solid transparent;
  padding: 18px 22px;
  text-decoration: none;
  color: var(--contact-cream);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.page-contact .contact-relate__link:hover {
  background: var(--contact-space-deep);
  border-left-color: var(--contact-orange);
  transform: translateX(4px);
}

.page-contact .contact-relate__link-index {
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 13px;
  color: var(--contact-orange);
  letter-spacing: 0.1em;
}

.page-contact .contact-relate__link-text {
  font-size: 15px;
  font-weight: 400;
  flex: 1;
}

.page-contact .contact-relate__link-arrow {
  font-size: 18px;
  color: var(--contact-metal);
  transition: color 0.2s ease;
}

.page-contact .contact-relate__link:hover .contact-relate__link-arrow {
  color: var(--contact-orange);
}

@media (min-width: 600px) {
  .page-contact .contact-hero h1 {
    font-size: 42px;
  }

  .page-contact .contact-channels__aside {
    flex-direction: row;
  }

  .page-contact .contact-tip {
    flex: 1;
  }

  .page-contact .contact-safety__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .contact-safety__card:first-child {
    grid-column: span 2;
  }

  .page-contact .contact-response__row:not(:last-child)::after {
    left: 92px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 96px 0;
  }

  .page-contact .contact-hero__inner {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 64px;
    align-items: center;
  }

  .page-contact .contact-hero h1 {
    font-size: 48px;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: 1.5fr 0.9fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .contact-channels__aside {
    flex-direction: column;
    position: sticky;
    top: 120px;
  }

  .page-contact .contact-response__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
  }

  .page-contact .contact-prep__layout {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 72px;
    align-items: start;
  }

  .page-contact .contact-prep__aside {
    position: sticky;
    top: 120px;
  }

  .page-contact .contact-safety__grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .page-contact .contact-safety__card:first-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card:hover {
    transform: none;
    box-shadow: 0 2px 8px rgba(11, 30, 60, 0.06);
  }

  .page-contact .contact-safety__card:hover {
    transform: none;
    box-shadow: none;
    border: 1px solid rgba(43, 33, 28, 0.12);
  }

  .page-contact .contact-relate__link:hover {
    transform: none;
  }
}

.page-contact {
  --cream: var(--color-cream);
}