.page-contact {
  position: relative;
  overflow-x: hidden;
  background: var(--c-white);
  color: var(--c-ink);
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== Hero ===== */
.page-contact .hero--contact {
  background: var(--c-blue);
  color: var(--c-white);
  padding: var(--space-4) 0 calc(var(--space-5) + 40px);
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), 0 100%);
  overflow: hidden;
}

.page-contact .breadcrumb {
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
}

.page-contact .breadcrumb a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color 0.2s;
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus {
  color: var(--c-lime);
  outline: none;
}

.page-contact .hero__kicker {
  font-family: var(--font-mono);
  color: var(--c-lime);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.85rem;
  margin: 0 0 var(--space-2);
}

.page-contact .hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 9vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}

.page-contact .hero__lead {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 36rem;
  margin: 0;
}

.page-contact .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-contact .hero__figure {
  margin: var(--space-4) 0 0;
}

.page-contact .hero__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
}

.page-contact .hero__index {
  margin-top: var(--space-4);
  color: rgba(255,255,255,0.35);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
}

/* ===== 联系渠道 ===== */
.page-contact .channels {
  background: var(--c-white);
  padding: var(--space-5) 0 var(--space-4);
}

.page-contact .section-head {
  margin-bottom: var(--space-4);
}

.page-contact .section-kicker {
  font-family: var(--font-mono);
  color: var(--c-orange);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 var(--space-2);
}

.page-contact .section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1;
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-2);
}

.page-contact .section-desc {
  color: rgba(13,13,13,0.7);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 40rem;
  margin: 0;
}

.page-contact .channels__grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-contact .channel-card {
  background: var(--c-blue-soft);
  padding: var(--space-4);
  position: relative;
  border: 1px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--c-orange);
  box-shadow: 8px 8px 0 rgba(10,30,61,0.12);
}

.page-contact .channel-card__index {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-orange);
}

.page-contact .channel-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  margin: 0 0 var(--space-2);
}

.page-contact .channel-card p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(13,13,13,0.65);
  margin: 0 0 var(--space-2);
}

.page-contact .channel-card__value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--c-blue);
  word-break: break-all;
  margin: 0;
}

.page-contact .channel-card__link {
  display: inline-block;
  margin-top: var(--space-2);
  color: var(--c-orange);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  border-bottom: 2px solid var(--c-orange);
  transition: color 0.2s, border-color 0.2s;
}

.page-contact .channel-card__link:hover,
.page-contact .channel-card__link:focus {
  color: var(--c-blue);
  border-color: var(--c-blue);
  outline: none;
}

.page-contact .channel-card__hint {
  display: block;
  margin-top: var(--space-2);
  font-size: 0.8rem;
  color: rgba(13,13,13,0.5);
}

.page-contact .channels__note {
  margin-top: var(--space-4);
  padding: var(--space-3);
  border-left: 4px solid var(--c-orange);
  background: var(--c-blue-soft);
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(13,13,13,0.8);
}

/* ===== 反馈表单 ===== */
.page-contact .feedback {
  background: var(--c-blue);
  color: var(--c-white);
  padding: var(--space-5) 0;
  position: relative;
  overflow: hidden;
}

.page-contact .feedback__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: 0;
  opacity: 0.12;
  pointer-events: none;
}

.page-contact .feedback__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .feedback .content-shell {
  position: relative;
  z-index: 1;
}

.page-contact .feedback__panel {
  display: grid;
  gap: var(--space-4);
}

.page-contact .feedback__copy .section-kicker {
  color: var(--c-lime);
}

.page-contact .feedback__copy h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1;
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-3);
}

.page-contact .feedback__copy p:not(.section-kicker) {
  color: rgba(255,255,255,0.8);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0 0 var(--space-3);
}

.page-contact .feedback__copy p:last-child {
  margin-bottom: 0;
}

.page-contact .feedback__form {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(198,255,0,0.35);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-contact .feedback__form-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.page-contact .feedback__form-label {
  font-family: var(--font-mono);
  color: var(--c-lime);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-top: 2px;
}

.page-contact .feedback__form-value {
  font-size: 0.9rem;
  line-height: 1.5;
  color: rgba(255,255,255,0.85);
  word-break: break-all;
}

.page-contact .feedback__form .btn {
  align-self: flex-start;
  margin-top: var(--space-2);
}

.page-contact .feedback__response {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin: 0;
}

/* ===== 商务合作 ===== */
.page-contact .partner {
  background: var(--c-blue-soft);
  padding: var(--space-5) 0;
}

.page-contact .partner__layout {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-contact .partner__scope,
.page-contact .partner__contact {
  background: var(--c-white);
  padding: var(--space-4);
  border: 1px solid rgba(10,30,61,0.08);
  position: relative;
}

.page-contact .partner__scope::before,
.page-contact .partner__contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 48px;
  height: 4px;
  background: var(--c-orange);
}

.page-contact .partner h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  margin: 0 0 var(--space-3);
}

.page-contact .partner ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .partner li {
  padding: var(--space-2) 0;
  border-bottom: 1px dashed rgba(10,30,61,0.15);
  font-size: 0.92rem;
  line-height: 1.5;
}

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

.page-contact .partner p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(13,13,13,0.75);
  margin: 0 0 var(--space-2);
}

.page-contact .partner__email {
  display: block;
  font-family: var(--font-mono);
  color: var(--c-orange);
  font-weight: 700;
  font-size: 1.1rem;
  word-break: break-all;
  margin: var(--space-2) 0;
}

.page-contact .partner__contact .btn {
  margin-top: var(--space-3);
}

/* ===== 响应时间 ===== */
.page-contact .response {
  background: var(--c-orange);
  padding: calc(var(--space-5) + 32px) 0 var(--space-5);
  clip-path: polygon(0 32px, 100% 0, 100% 100%, 0 100%);
}

.page-contact .response__inner {
  max-width: 48rem;
  position: relative;
}

.page-contact .response__hours {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(4rem, 18vw, 9rem);
  line-height: 0.8;
  color: rgba(13,13,13,0.14);
  margin-bottom: var(--space-2);
  user-select: none;
}

.page-contact .response .section-kicker {
  font-family: var(--font-mono);
  color: var(--c-ink);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 var(--space-2);
}

.page-contact .response h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1;
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-3);
}

.page-contact .response p {
  color: rgba(13,13,13,0.82);
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-contact .response a {
  color: var(--c-ink);
  font-weight: 700;
  text-underline-offset: 3px;
}

.page-contact .response .btn {
  margin-top: var(--space-3);
  border-color: var(--c-ink);
  color: var(--c-ink);
}

.page-contact .response .btn:hover,
.page-contact .response .btn:focus {
  background: var(--c-ink);
  color: var(--c-orange);
  outline: none;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 768px) {
  .page-contact .hero--contact {
    padding-top: var(--space-5);
  }

  .page-contact .hero__inner {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: var(--space-5);
    align-items: center;
  }

  .page-contact .hero__figure {
    margin: 0;
  }

  .page-contact .channels__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .page-contact .feedback__panel {
    grid-template-columns: 3fr 2fr;
    gap: var(--space-5);
    align-items: center;
  }

  .page-contact .partner__layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }
}

@media (min-width: 1200px) {
  .page-contact .hero__lead {
    font-size: 1.1rem;
  }

  .page-contact .channel-card {
    padding: var(--space-5);
  }

  .page-contact .partner__layout {
    grid-template-columns: 2fr 3fr;
  }

  .page-contact .response p {
    font-size: 1rem;
  }
}