.page-contact {
  --page-contact-card-bg: #111A3D;
  --page-contact-card-border: rgba(192, 199, 216, 0.18);
  --page-contact-code-bg: #0A0F24;
  --page-contact-line: rgba(0, 194, 255, 0.25);
  --page-contact-orange: #FF6B2C;
  --page-contact-silver: #C0C7D8;
  --page-contact-muted: #9BA3B5;
  --page-contact-midnight: #0e1630;
  overflow-x: hidden;
  background: var(--color-space);
  color: var(--color-fog);
}

/* ===== 01 首屏区 ===== */
.page-contact-hero {
  padding: 4rem var(--content-gutter) 2.5rem;
  position: relative;
}

.page-contact-hero__grid {
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-contact-hero__content {
  position: relative;
  z-index: 2;
}

.page-contact-hero__title {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.75rem);
  line-height: 1.12;
  letter-spacing: 0.02em;
  margin: 1rem 0 1.25rem;
}

.page-contact-hero__title-accent {
  display: block;
  color: var(--color-silver);
  font-weight: 700;
}

.page-contact-hero__lead {
  max-width: 680px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-gray);
  margin: 0 0 1.25rem;
}

.page-contact-hero__meta {
  max-width: 680px;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-silver);
  border: 1px solid var(--page-contact-card-border);
  border-left: 3px solid var(--color-orange);
  padding: 0.6rem 0.9rem;
  background: rgba(17, 26, 61, 0.6);
}

.page-contact-hero__asides {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.page-contact-hero__number {
  position: absolute;
  top: -0.1em;
  right: -0.12em;
  font-family: var(--font-headline);
  font-size: clamp(9rem, 24vw, 16rem);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 107, 44, 0.28);
  user-select: none;
}

.page-contact-hero__grid-svg {
  position: absolute;
  width: 420px;
  height: 420px;
  right: -1rem;
  top: 3rem;
  opacity: 0.7;
}

/* ===== 02 联系方式区 ===== */
.page-contact-channels {
  padding: 2.5rem var(--content-gutter) 4rem;
  background:
    radial-gradient(circle at 80% 20%, rgba(0, 194, 255, 0.05), transparent 40%),
    var(--color-space);
}

.page-contact-channels__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.page-contact-channels__title {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.2;
  margin: 0.5rem 0 0.75rem;
}

.page-contact-channels__desc {
  max-width: 600px;
  font-family: var(--font-body);
  color: var(--color-gray);
  line-height: 1.7;
  margin: 0 0 2rem;
}

.page-contact-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.page-contact-channel-card {
  position: relative;
  background: var(--page-contact-card-bg);
  border: 1px solid var(--page-contact-card-border);
  border-top: 3px solid var(--color-orange);
  padding: 1.5rem 1.25rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-contact-channel-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
}

.page-contact-channel-card__icon {
  display: inline-flex;
  margin-bottom: 1rem;
}

.page-contact-channel-card__label {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--color-silver);
  margin: 0 0 0.5rem;
}

.page-contact-channel-card__value {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-fog);
  line-height: 1.5;
  word-break: break-all;
  margin: 0 0 0.75rem;
}

.page-contact-channel-card__note {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-gray);
  margin: 0 0 1rem;
}

.page-contact-channel-card__time {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.page-contact-channel-card__time strong {
  color: var(--color-orange);
  font-family: var(--font-body);
  font-size: 1.25rem;
}

.page-contact-copy-btn {
  display: inline-block;
  background: transparent;
  border: 1px solid var(--color-silver);
  color: var(--color-silver);
  padding: 0.45rem 1.1rem;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  cursor: pointer;
  transition: all 0.3s ease;
}

.page-contact-copy-btn:hover {
  border-color: var(--color-orange);
  color: var(--color-orange);
}

.page-contact-channels__media {
  position: relative;
  margin-top: 0.5rem;
}

.page-contact-channels__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 220px;
  border: 1px solid var(--page-contact-card-border);
  background: var(--page-contact-midnight);
  object-fit: cover;
}

.page-contact-channels__media-caption {
  display: block;
  padding: 0.75rem 0.25rem 0;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-gray);
  border-bottom: 1px solid var(--page-contact-card-border);
  margin-bottom: 1.5rem;
}

.page-contact-timeline {
  background: var(--page-contact-card-bg);
  border: 1px solid var(--page-contact-card-border);
  padding: 1.75rem 1.5rem;
}

.page-contact-timeline__badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-space);
  background: var(--color-electric);
  padding: 0.25rem 0.75rem;
  margin-bottom: 1rem;
}

.page-contact-timeline__title {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--color-fog);
  margin: 0 0 1.25rem;
}

.page-contact-timeline__list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

.page-contact-timeline__list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed rgba(192, 199, 216, 0.15);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-gray);
}

.page-contact-timeline__list li:last-child {
  border-bottom: none;
}

.page-contact-timeline__list strong {
  color: var(--color-fog);
  font-weight: 700;
  white-space: nowrap;
}

.page-contact-timeline__note {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-muted);
  margin: 0;
}

.page-contact-aside-links {
  margin-top: 1.5rem;
}

.page-contact-aside-link {
  display: block;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(255, 107, 44, 0.12), rgba(0, 194, 255, 0.05));
  border: 1px solid var(--page-contact-card-border);
  color: var(--color-fog);
  font-family: var(--font-body);
  text-decoration: none;
  transition: background 0.3s ease;
}

.page-contact-aside-link:hover {
  background: linear-gradient(135deg, rgba(255, 107, 44, 0.22), rgba(0, 194, 255, 0.08));
}

.page-contact-aside-link span {
  display: block;
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: 0.35rem;
}

.page-contact-aside-link small {
  color: var(--color-gray);
  font-size: var(--text-xs);
}

/* ===== 03 表单区 ===== */
.page-contact-form-section {
  padding: 4rem var(--content-gutter);
  background:
    linear-gradient(90deg, transparent 49.5%, rgba(0, 194, 255, 0.06) 50%, transparent 50.5%),
    var(--color-midnight);
}

.page-contact-form-section__grid {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.page-contact-form-section__intro {
  position: relative;
}

.page-contact-form-section__title {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin: 0.5rem 0 0.75rem;
}

.page-contact-form-section__lead {
  max-width: 560px;
  font-family: var(--font-body);
  line-height: 1.7;
  color: var(--color-gray);
  margin: 0 0 2rem;
}

.page-contact-form-section__steps {
  margin-bottom: 2rem;
}

.page-contact-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.page-contact-step span {
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-orange);
  color: var(--color-orange);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
}

.page-contact-step p {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-fog);
  line-height: 2;
  margin: 0;
}

.page-contact-form-section__media {
  position: relative;
}

.page-contact-form-section__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--page-contact-card-border);
  background: var(--page-contact-code-bg);
  object-fit: cover;
}

.page-contact-form-wrap {
  background: var(--color-space);
  border: 1px solid var(--page-contact-card-border);
  border-top: 4px solid var(--color-orange);
  padding: 2rem 1.5rem;
  position: relative;
}

.page-contact-form {
  display: grid;
  gap: 1.5rem;
}

.page-contact-form__row {
  display: grid;
  gap: 0.4rem;
}

.page-contact-form__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-silver);
  text-transform: uppercase;
}

.page-contact-form__input {
  width: 100%;
  background: var(--page-contact-code-bg);
  border: 1px solid rgba(192, 199, 216, 0.25);
  border-left: 3px solid transparent;
  color: var(--color-fog);
  padding: 0.75rem 0.9rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.5;
  transition: border-color 0.3s ease;
}

.page-contact-form__input:focus-visible {
  outline: none;
  border-left-color: var(--color-orange);
  border-color: rgba(255, 107, 44, 0.4);
}

.page-contact-form__submit {
  justify-self: start;
  min-width: 150px;
}

.page-contact-form__hint {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-gray);
  line-height: 1.6;
  padding-left: 0.75rem;
  border-left: 2px solid var(--color-electric);
}

.page-contact-form__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1.5rem;
}

.page-contact-form__empty[data-hidden] {
  display: none;
}

.page-contact-form__empty[data-hidden="false"] {
  display: flex;
}

.page-contact-form__empty-icon {
  margin-bottom: 1rem;
}

.page-contact-form__empty h3 {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
}

.page-contact-form__empty p {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-gray);
  margin: 0;
}

/* ===== 04 常见问题跳转 ===== */
.page-contact-faq-jump {
  position: relative;
  padding: 4rem var(--content-gutter);
  background: var(--color-midnight);
  overflow: hidden;
}

.page-contact-faq-jump__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
}

.page-contact-faq-jump__title {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin: 0.5rem 0 0.75rem;
}

.page-contact-faq-jump__desc {
  max-width: 620px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-gray);
  margin: 0 0 1.75rem;
}

.page-contact-faq-jump__small {
  margin-top: 1.25rem;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-gray);
}

.page-contact-faq-jump__small a {
  color: var(--color-electric);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-electric);
}

.page-contact-faq-jump__pattern {
  position: absolute;
  right: -1rem;
  bottom: -2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(8rem, 20vw, 14rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px rgba(0, 194, 255, 0.15);
  user-select: none;
}

.page-contact-faq-jump__pattern span:last-child {
  -webkit-text-stroke-color: rgba(255, 107, 44, 0.2);
}

/* ===== 滚动显现 ===== */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.page-contact [data-reveal][data-revealed] {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式：桌面端 ===== */
@media (min-width: 768px) {
  .page-contact-channel-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact-channel-card--wide {
    grid-column: 1 / -1;
  }

  .page-contact-form-section__grid {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }

  .page-contact-form-wrap {
    padding: 2.5rem 2.25rem;
  }
}

@media (min-width: 1024px) {
  .page-contact-hero {
    padding: 5rem var(--content-gutter) 3.5rem;
  }

  .page-contact-channels__inner {
    grid-template-columns: 1.6fr 1fr;
    gap: 3rem;
  }

  .page-contact-channels__main {
    position: relative;
  }

  .page-contact-channels__media {
    max-width: 560px;
  }

  .page-contact-channels__aside {
    padding-top: 2rem;
  }

  .page-contact-timeline {
    position: sticky;
    top: 5rem;
  }

  .page-contact-form-section {
    padding: 5.5rem var(--content-gutter);
  }

  .page-contact-form-section__intro {
    padding-right: 2rem;
  }

  .page-contact-faq-jump {
    padding: 5rem var(--content-gutter);
  }
}

@media (min-width: 1200px) {
  .page-contact-hero__grid {
    grid-template-columns: 1.3fr 0.6fr;
  }

  .page-contact-hero__asides {
    position: relative;
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact-hero__number {
    right: 0;
    top: -0.15em;
  }

  .page-contact-hero__grid-svg {
    width: 380px;
    height: 380px;
    right: 0;
    top: 2.5rem;
  }

  .page-contact-channels__inner {
    gap: 4rem;
  }

  .page-contact-channel-card {
    padding: 1.75rem 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-contact-channel-card:hover {
    transform: none;
    box-shadow: none;
  }
}

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