.page-contact {
  --contact-gap: 24px;
  --contact-ease: var(--ease);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ===== 顶部英雄区 ===== */
.page-contact .contact-hero {
  position: relative;
  margin-top: 20px;
  padding: 48px 0 40px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--grad-start) 62%, var(--navy-deep) 100%);
  color: #fff;
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(-45deg, rgba(255,255,255,.02) 0 1px, transparent 1px 18px),
    radial-gradient(circle at 85% 20%, rgba(0,194,209,.18) 0 2%, transparent 9%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0 18%, var(--cyan) 18% 36%, transparent 36%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.page-contact .contact-hero__title {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 8vw, 4rem);
  line-height: 1.05;
  margin: 0 0 16px;
  letter-spacing: .02em;
}

.page-contact .contact-hero__lead {
  font-size: clamp(1rem, 3vw, 1.25rem);
  line-height: 1.7;
  max-width: 34em;
  margin: 0 0 8px;
}

.page-contact .contact-hero__sub {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,.72);
  max-width: 38em;
  margin: 0;
}

.page-contact .contact-hero__figure {
  margin: 32px 0 0;
  border: 1px solid rgba(255,255,255,.2);
  display: block;
}

.page-contact .contact-hero__figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-contact .contact-hero__figcaption {
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(255,255,255,.7);
  border-top: 1px solid rgba(255,255,255,.16);
}

.page-contact .contact-hero__email {
  margin-top: 32px;
  padding: 20px;
  border: 1px solid rgba(255,255,255,.24);
  background: rgba(255,255,255,.08);
}

.page-contact .contact-hero__email-info {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255,255,255,.75);
}

.page-contact .contact-hero__email-label {
  font-family: var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.page-contact .contact-hero__email-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan);
}

.page-contact .contact-hero__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(0,194,209,.5);
  animation: page-contact-pulse 1.8s infinite;
}

@keyframes page-contact-pulse {
  0% { box-shadow: 0 0 0 0 rgba(0,194,209,.5); }
  70% { box-shadow: 0 0 0 8px rgba(0,194,209,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,194,209,0); }
}

.page-contact .contact-hero__email-address {
  display: inline-block;
  position: relative;
  margin-top: 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.25rem, 6vw, 2.25rem);
  letter-spacing: .01em;
  color: #fff;
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
  padding-bottom: 2px;
  word-break: break-all;
  transition: color .2s var(--contact-ease), border-color .2s var(--contact-ease);
}

.page-contact .contact-hero__email-address::after {
  content: '';
  position: absolute;
  left: -32px;
  top: 0;
  height: 100%;
  width: 2px;
  background: var(--orange);
  opacity: 0;
  transition: left .3s var(--contact-ease), opacity .2s var(--contact-ease);
}

.page-contact .contact-hero__email-address:hover {
  color: var(--cyan);
  border-color: var(--orange);
}

.page-contact .contact-hero__email-address:hover::after {
  left: -6px;
  opacity: 1;
}

.page-contact .contact-hero__email-hint {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  color: rgba(255,255,255,.6);
}

/* ===== 联系渠道 ===== */
.page-contact .contact-channels {
  padding: 56px 0 16px;
}

.page-contact .contact-section__lead {
  margin: 8px 0 32px;
  color: var(--slate);
  font-size: 15px;
  line-height: 1.7;
  max-width: 48em;
}

.page-contact .contact-channels__grid {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .contact-channel-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 4px solid var(--cyan);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow .2s var(--contact-ease), transform .2s var(--contact-ease);
}

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

.page-contact .contact-channel-card:nth-child(3) {
  border-top-color: var(--navy);
}

.page-contact .contact-channel-card:hover {
  box-shadow: 0 8px 28px rgba(10,31,68,.08);
  transform: translateY(-2px);
}

.page-contact .contact-channel-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-contact .contact-channel-card__code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}

.page-contact .contact-channel-card__tag {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border: 1px solid var(--line);
  color: var(--slate);
}

.page-contact .contact-channel-card__tag--cyan {
  color: var(--cyan-dark);
  border-color: rgba(0,194,209,.3);
}

.page-contact .contact-channel-card__tag--orange {
  color: var(--orange-dark);
  border-color: rgba(255,92,0,.3);
}

.page-contact .contact-channel-card__tag--gold {
  color: #a67c00;
  border-color: rgba(255,209,102,.5);
}

.page-contact .contact-channel-card__title {
  font-family: var(--font-head);
  font-size: 1.25rem;
  margin: 0;
}

.page-contact .contact-channel-card__value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  word-break: break-all;
  color: var(--cyan-dark);
  text-decoration: none;
  transition: color .2s var(--contact-ease);
}

.page-contact .contact-channel-card__value--addr {
  color: var(--ink);
}

.page-contact .contact-channel-card__value:hover {
  color: var(--orange);
}

.page-contact .contact-channel-card__desc {
  font-size: 14px;
  line-height: 1.65;
  margin: 0;
}

.page-contact .contact-channel-card__note {
  font-size: 12px;
  color: var(--slate);
  margin: 0;
}

.page-contact .contact-channel-card__details {
  margin-top: 4px;
  font-size: 13px;
}

.page-contact .contact-channel-card__details summary {
  cursor: pointer;
  color: var(--cyan-dark);
  font-weight: 600;
  list-style: none;
  user-select: none;
}

.page-contact .contact-channel-card__details summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-channel-card__details p {
  margin: 8px 0 0;
  color: var(--slate);
  line-height: 1.6;
}

.page-contact .contact-minimap {
  position: relative;
  height: 60px;
  margin-top: auto;
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(10,31,68,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,31,68,.05) 1px, transparent 1px);
  background-size: 20px 20px;
  overflow: hidden;
}

.page-contact .contact-minimap__h,
.page-contact .contact-minimap__v {
  position: absolute;
  background: var(--line);
}

.page-contact .contact-minimap__h {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
}

.page-contact .contact-minimap__v {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
}

.page-contact .contact-minimap__dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--orange);
  border: 2px solid #fff;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 3px rgba(255,92,0,.15);
}

/* ===== 反馈处理流程 ===== */
.page-contact .contact-flow {
  margin-top: 56px;
  padding: 56px 0;
  background: var(--navy);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-flow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--orange) 40%, transparent 100%);
  opacity: .9;
}

.page-contact .contact-flow .section-head {
  border-bottom-color: rgba(255,255,255,.22);
}

.page-contact .contact-flow .section-head__title {
  color: #fff;
}

.page-contact .contact-flow .section-head__number {
  color: var(--cyan);
}

.page-contact .contact-flow .contact-section__lead {
  color: rgba(255,255,255,.7);
}

.page-contact .contact-flow__steps {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .flow-step {
  position: relative;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.05);
  padding: 20px;
}

.page-contact .flow-step__num {
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  color: var(--orange);
  display: block;
  margin-bottom: 10px;
}

.page-contact .flow-step__title {
  font-family: var(--font-head);
  font-size: 16px;
  margin: 0 0 8px;
  color: #fff;
}

.page-contact .flow-step__desc {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255,255,255,.72);
  margin: 0;
}

/* ===== 响应承诺 ===== */
.page-contact .contact-commitment {
  padding: 40px 0 16px;
}

.page-contact .contact-commitment__grid {
  display: grid;
  gap: 32px;
}

.page-contact .contact-commitment__timer {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.page-contact .contact-commitment__num {
  font-family: var(--font-head);
  font-size: clamp(4rem, 14vw, 7rem);
  line-height: .9;
  color: var(--navy);
}

.page-contact .contact-commitment__unit {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 4vw, 2rem);
  color: var(--orange);
  padding-bottom: 10px;
}

.page-contact .contact-commitment__text {
  font-size: 15px;
  line-height: 1.75;
  margin: 16px 0 0;
}

.page-contact .contact-commitment__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-contact .contact-commitment__list li {
  position: relative;
  padding: 10px 0 10px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.6;
}

.page-contact .contact-commitment__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 17px;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .contact-commitment__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.page-contact .commit-stat {
  border-left: 2px solid var(--navy);
  padding-left: 12px;
}

.page-contact .commit-stat__num {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.1;
  color: var(--navy);
}

.page-contact .commit-stat__num em {
  font-style: normal;
  color: var(--orange);
  font-size: .65em;
  margin-left: 2px;
}

.page-contact .commit-stat__label {
  display: block;
  font-size: 12px;
  color: var(--slate);
  margin-top: 4px;
}

.page-contact .contact-commitment__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--card);
}

.page-contact .contact-commitment__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-contact .contact-commitment__caption {
  padding: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-align: center;
  color: var(--slate);
}

/* ===== 常见联系原因 ===== */
.page-contact .contact-reasons {
  padding: 48px 0 72px;
}

.page-contact .contact-reasons__grid {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .reason-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow .2s var(--contact-ease), transform .2s var(--contact-ease);
}

.page-contact .reason-card:hover {
  box-shadow: 0 10px 24px rgba(10,31,68,.08);
  transform: translateY(-2px);
}

.page-contact .reason-card__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  padding: 3px 10px;
  border: 1px solid;
}

.page-contact .reason-card__tag--orange {
  color: var(--orange-dark);
  border-color: rgba(255,92,0,.35);
}

.page-contact .reason-card__tag--cyan {
  color: var(--cyan-dark);
  border-color: rgba(0,194,209,.35);
}

.page-contact .reason-card__tag--navy {
  color: var(--navy);
  border-color: rgba(10,31,68,.35);
}

.page-contact .reason-card__tag--gold {
  color: #a67c00;
  border-color: rgba(255,209,102,.5);
}

.page-contact .reason-card__title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin: 0;
}

.page-contact .reason-card__desc {
  font-size: 13.5px;
  line-height: 1.6;
  margin: 0;
}

.page-contact .reason-card__steps {
  margin: 8px 0 0;
  padding-left: 18px;
  font-size: 13px;
  color: var(--slate);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .reason-card__steps li {
  line-height: 1.5;
}

.page-contact .reason-card__link {
  margin-top: auto;
  padding-top: 16px;
  color: var(--navy);
  font-weight: 700;
  font-size: 13px;
  text-decoration: none;
  border-top: 1px solid var(--line);
  transition: color .2s var(--contact-ease);
}

.page-contact .reason-card__link:hover {
  color: var(--orange);
}

.page-contact .contact-reasons__note {
  margin-top: 36px;
  padding: 18px 24px;
  background: var(--navy);
  color: rgba(255,255,255,.85);
  font-size: 14px;
  line-height: 1.65;
  display: flex;
  gap: 14px;
}

.page-contact .contact-reasons__note::before {
  content: '!';
  flex: none;
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-top: 2px;
}

.page-contact .contact-reasons__note p {
  margin: 0;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 768px) {
  .page-contact .contact-hero {
    padding: 64px 0 56px;
  }

  .page-contact .contact-hero__lead {
    max-width: 42em;
  }

  .page-contact .contact-hero__email {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px 32px;
    align-items: center;
    padding: 28px 40px;
  }

  .page-contact .contact-hero__email-address {
    margin-top: 0;
    text-align: center;
    justify-self: center;
  }

  .page-contact .contact-hero__email-hint {
    margin-top: 0;
    text-align: right;
  }

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

  .page-contact .contact-flow__steps {
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
  }

  .page-contact .flow-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -14px;
    width: 10px;
    height: 2px;
    background: var(--orange);
    z-index: 2;
  }

  .page-contact .contact-commitment__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }

  .page-contact .contact-commitment__figure {
    max-width: 520px;
    margin-left: auto;
  }
}

@media (min-width: 992px) {
  .page-contact .contact-reasons__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-reasons__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__pulse {
    animation: none;
  }

  .page-contact .contact-channel-card,
  .page-contact .reason-card,
  .page-contact .contact-hero__email-address {
    transition: none;
  }
}