.page-contact {
  --contact-line: rgba(185, 198, 206, .45);
  --contact-plate-bg: rgba(245, 247, 242, .06);
  --contact-card-shadow: 8px 8px 0 rgba(11, 60, 93, .1);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  color: var(--paper);
  padding-top: calc(var(--header-h) + clamp(44px, 8vw, 92px));
  padding-bottom: clamp(44px, 7vw, 84px);
  background:
    radial-gradient(115% 85% at 90% 8%, rgba(61, 220, 151, .18), transparent 58%),
    radial-gradient(95% 80% at 4% 96%, rgba(255, 122, 0, .14), transparent 62%),
    linear-gradient(165deg, #04141F 0%, #06202F 38%, #0B3C5D 78%, #103B58 100%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(185, 198, 206, .09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(185, 198, 206, .09) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), transparent 82%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .85), transparent 82%);
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-hero__crumb {
  margin-bottom: 20px;
}

.page-contact .contact-hero__crumb .breadcrumb-list,
.page-contact .contact-hero__crumb a {
  color: var(--frost);
}

.page-contact .contact-hero__crumb .breadcrumb-item[aria-current="page"] {
  color: var(--aurora);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 6.4vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  text-wrap: balance;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.85;
  color: rgba(245, 247, 242, .82);
}

.page-contact .contact-hero__plates {
  margin-top: clamp(24px, 3.5vw, 38px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .contact-plate {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--contact-line);
  border-left: 3px solid var(--aurora);
  background: var(--contact-plate-bg);
}

.page-contact .contact-plate:nth-child(2) {
  border-left-color: var(--ember);
}

.page-contact .contact-plate__label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--frost);
}

.page-contact .contact-plate__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.04rem, 2.1vw, 1.4rem);
  line-height: 1.35;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-plate__value--tel {
  letter-spacing: .04em;
  color: var(--aurora);
}

.page-contact .contact-plate__hint {
  font-size: .86rem;
  line-height: 1.6;
  color: rgba(185, 198, 206, .92);
}

.page-contact .contact-hero__figure {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--contact-line);
  background: rgba(6, 32, 47, .55);
  box-shadow: 10px 10px 0 rgba(6, 32, 47, .5);
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-hero__figure-tag {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--frost);
}

/* ---------- 客服渠道卡片 ---------- */
.page-contact .support-grid {
  gap: clamp(16px, 2.4vw, 26px);
}

.page-contact .support-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--ice);
  background: linear-gradient(180deg, #FFFFFF 0%, #F7F9F6 100%);
  box-shadow: var(--contact-card-shadow);
}

.page-contact .support-card--tel {
  border-top-color: var(--aurora);
}

.page-contact .support-card--guide {
  border-top-color: var(--ember);
}

.page-contact .support-card__title {
  margin: 0;
  font-size: clamp(1.06rem, 1.8vw, 1.26rem);
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .support-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.04rem;
  line-height: 1.5;
  color: var(--ice);
  overflow-wrap: anywhere;
}

.page-contact .support-card__value--mail {
  font-size: .96rem;
}

.page-contact .support-card__text {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--chalk);
}

.page-contact .support-card__link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: .84rem;
  letter-spacing: .04em;
  color: var(--ice);
  text-decoration: none;
  border-bottom: 2px solid var(--aurora);
}

.page-contact .support-card__link:hover,
.page-contact .support-card__link:focus-visible {
  color: var(--ember);
  border-bottom-color: var(--ember);
}

/* ---------- 合作对接深色区 ---------- */
.page-contact .section--ice {
  background: linear-gradient(155deg, #06202F 0%, #0B3C5D 100%);
  color: var(--paper);
}

.page-contact .section-head--light .section-title {
  color: var(--paper);
}

.page-contact .section-head--light .section-lead {
  color: rgba(245, 247, 242, .76);
}

.page-contact .section-head--light .eyebrow {
  color: var(--aurora);
}

.page-contact .tabs {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .tab-list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(185, 198, 206, .3);
  scrollbar-width: thin;
}

.page-contact .tab {
  flex: 0 0 auto;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: .92rem;
  font-weight: 700;
  white-space: nowrap;
  color: var(--frost);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
}

.page-contact .tab:hover {
  color: var(--paper);
}

.page-contact .tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--aurora);
  border-color: var(--aurora);
}

.page-contact .partner-panel {
  margin-top: 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 34px);
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid rgba(185, 198, 206, .3);
  background: rgba(6, 32, 47, .5);
}

.page-contact .partner-panel[hidden] {
  display: none;
}

.page-contact .partner-panel__main h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.22rem, 2.4vw, 1.7rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .partner-panel__main p {
  margin: 0;
  max-width: 58ch;
  font-size: .97rem;
  line-height: 1.85;
  color: rgba(245, 247, 242, .82);
}

.page-contact .partner-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 22px;
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(245, 247, 242, .9);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 10px;
  height: 2px;
  background: var(--ember);
}

.page-contact .partner-panel__aside {
  align-self: start;
  padding: 18px 18px 20px;
  border-left: 2px solid var(--aurora);
  background: rgba(61, 220, 151, .07);
}

.page-contact .partner-panel__aside p {
  margin: 10px 0 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(245, 247, 242, .84);
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .visit-section {
  background: linear-gradient(180deg, #EDF2F1 0%, var(--paper) 100%);
}

.page-contact .visit-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 42px);
  align-items: center;
}

.page-contact .visit-card {
  padding: clamp(22px, 3vw, 36px);
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--contact-card-shadow);
}

.page-contact .visit-card__label {
  margin: 20px 0 6px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mid);
}

.page-contact .visit-card__address {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.08rem, 2.1vw, 1.48rem);
  font-weight: 900;
  line-height: 1.45;
  letter-spacing: -.005em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .visit-card__text {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--chalk);
}

.page-contact .visit-figure {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-contact .visit-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-contact .visit-folds {
  margin-top: clamp(24px, 3.5vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-contact .visit-fold {
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-contact .visit-fold summary {
  position: relative;
  padding: 14px 44px 14px 16px;
  list-style: none;
  cursor: pointer;
  font-size: .94rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ice);
}

.page-contact .visit-fold summary::-webkit-details-marker {
  display: none;
}

.page-contact .visit-fold summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--ember);
}

.page-contact .visit-fold[open] summary::after {
  content: "–";
}

.page-contact .visit-fold summary:hover {
  color: var(--ember);
}

.page-contact .visit-fold p {
  margin: 0;
  padding: 0 16px 16px;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--chalk);
}

/* ---------- 响应说明 ---------- */
.page-contact .response-section {
  background: var(--paper);
}

.page-contact .response-list {
  margin-top: clamp(20px, 3vw, 32px);
  border-top: 2px solid var(--ink);
}

.page-contact .response-list .index-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .response-list .index-num {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--ember);
}

.page-contact .response-list .index-label {
  font-size: .97rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .response-list .index-value {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: .88rem;
  line-height: 1.6;
  color: var(--mid);
}

.page-contact .response-note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 70ch;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--chalk);
}

.page-contact .response-note a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 2px solid var(--aurora);
}

.page-contact .response-note a:hover,
.page-contact .response-note a:focus-visible {
  color: var(--ember);
  border-bottom-color: var(--ember);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero__plates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-contact .response-list .index-row {
    grid-template-columns: 48px minmax(0, 1.4fr) minmax(0, .8fr);
  }

  .page-contact .response-list .index-value {
    grid-column: 3;
    text-align: right;
  }

  .page-contact .visit-folds {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .partner-panel {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .95fr);
  }

  .page-contact .visit-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero::before {
    background-attachment: scroll;
  }
}