.page-contact {
  --pc-card-bg: rgba(17, 28, 48, 0.72);
  --pc-soft-glow: rgba(242, 196, 109, 0.12);
}

/* ========== 基础排版 ========== */
.page-contact h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.6vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.18;
  color: var(--paper);
  margin: 0;
}

.page-contact .breadcrumb {
  margin-top: 4px;
  margin-bottom: 8px;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .lede {
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
}

/* ========== 首屏 ========== */
.page-contact .hero {
  display: grid;
  gap: 28px;
  padding: 40px 0 56px;
}

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

.page-contact .hero__quick {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  align-self: flex-start;
  padding: 10px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(242, 196, 109, 0.1), rgba(242, 196, 109, 0.02));
}

.page-contact .hero__quick-link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: 0.01em;
  border-bottom: 1px dashed rgba(242, 196, 109, 0.4);
  padding-bottom: 1px;
}

.page-contact .hero__quick-link:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-contact .hero__quick-note {
  font-size: 12px;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-contact .hero__visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-faint);
  background: var(--panel);
  aspect-ratio: 12 / 7;
}

.page-contact .hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 65% 30%, var(--pc-soft-glow), transparent 55%);
  pointer-events: none;
}

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

@media (min-width: 880px) {
  .page-contact .hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
    gap: 40px;
    padding: 56px 0 72px;
  }
}

/* ========== 章节框架 ========== */
.page-contact .section {
  position: relative;
  padding: 32px 0;
  border-top: 1px solid var(--line-faint);
}

.page-contact .section::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.page-contact .chapter {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.page-contact .chapter__index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.page-contact .chapter__rule {
  display: inline-block;
  width: 36px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

.page-contact .chapter__title {
  font-family: var(--font-display);
  font-size: 21px;
  letter-spacing: 0.06em;
  color: var(--paper);
  margin: 0;
  font-weight: 600;
  line-height: 1.35;
}

@media (min-width: 720px) {
  .page-contact .chapter__title {
    font-size: 26px;
  }
}

/* ========== 01 · 联系渠道 ========== */
.page-contact .channels {
  display: grid;
  gap: 14px;
}

@media (min-width: 720px) {
  .page-contact .channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact .channel {
  padding: 20px 22px;
  border: 1px solid var(--line-faint);
  border-radius: var(--radius);
  background: var(--pc-card-bg);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-contact .channel:hover {
  border-color: var(--line-soft);
  box-shadow: 0 0 0 1px rgba(242, 196, 109, 0.08), 0 8px 28px rgba(0, 0, 0, 0.28);
}

.page-contact .channel--gold {
  border-color: rgba(242, 196, 109, 0.35);
  background: linear-gradient(180deg, rgba(242, 196, 109, 0.08), rgba(17, 28, 48, 0.72));
}

.page-contact .channel .exhibit-label {
  color: var(--celadon);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-contact .channel__value {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--paper);
  letter-spacing: 0.01em;
  line-height: 1.4;
  word-break: break-all;
}

.page-contact a.channel__value {
  text-decoration: none;
  transition: color .18s var(--ease);
}

.page-contact a.channel__value:hover {
  color: var(--gold);
}

.page-contact .channel--gold .channel__value {
  color: var(--gold);
  font-size: 17px;
}

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

/* ========== 02 · 反馈前准备 ========== */
.page-contact .prep {
  display: grid;
  gap: 24px;
}

@media (min-width: 880px) {
  .page-contact .prep {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 40px;
  }
}

.page-contact .prep__steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .prep-step {
  border: 1px solid var(--line-faint);
  border-radius: var(--radius-sm);
  background: var(--pc-card-bg);
  overflow: hidden;
  transition: border-color .22s var(--ease);
}

.page-contact .prep-step[open] {
  border-color: var(--line-soft);
}

.page-contact .prep-step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-size: 15px;
}

.page-contact .prep-step summary::-webkit-details-marker {
  display: none;
}

.page-contact .prep-step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold);
  line-height: 1;
  transition: transform .18s var(--ease);
}

.page-contact .prep-step[open] summary::after {
  content: "−";
}

.page-contact .prep-step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--celadon);
  letter-spacing: 0.08em;
}

.page-contact .prep-step__title {
  font-weight: 500;
  letter-spacing: 0.02em;
}

.page-contact .prep-step__body {
  padding: 0 18px 16px 50px;
}

.page-contact .prep-step__body p {
  font-size: 14px;
  color: var(--mist);
  line-height: 1.75;
  margin: 0;
}

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

.page-contact .prep__visual .media-frame__label {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

/* ========== 03 · 响应节奏 ========== */
.page-contact .response {
  display: grid;
  gap: 14px;
}

@media (min-width: 720px) {
  .page-contact .response {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-contact .response__slab {
  padding: 26px 24px;
  border: 1px solid var(--line-faint);
  border-radius: var(--radius);
  background: var(--pc-card-bg);
  position: relative;
  overflow: hidden;
}

.page-contact .response__slab::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.page-contact .response__slab h3 {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--paper);
  margin: 8px 0 10px;
  letter-spacing: 0.04em;
  font-weight: 600;
  line-height: 1.35;
}

.page-contact .response__slab p {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

/* ========== 04 · 标签页 ========== */
.page-contact [data-tabs] {
  display: flex;
  flex-direction: column;
}

.page-contact .tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line-faint);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-contact .tabs::-webkit-scrollbar {
  display: none;
}

.page-contact .tabs__btn {
  flex-shrink: 0;
  padding: 12px 18px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .tabs__btn[aria-selected="true"] {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

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

.page-contact .tabs__btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-contact .tabs__panel {
  padding: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 42em;
}

.page-contact .tabs__panel h3 {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--paper);
  margin: 0;
  letter-spacing: 0.04em;
  font-weight: 600;
  line-height: 1.35;
}

.page-contact .tabs__panel p {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.page-contact .tabs__link {
  color: var(--gold);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 2px;
  align-self: flex-start;
  margin-top: 4px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .tabs__link:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ========== 05 · 到访信息 ========== */
.page-contact .visit {
  display: grid;
  gap: 20px;
}

@media (min-width: 880px) {
  .page-contact .visit {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

.page-contact .visit__card {
  position: relative;
  padding: 28px 26px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(242, 196, 109, 0.06), rgba(17, 28, 48, 0.85));
  transition: border-color .22s var(--ease);
}

.page-contact .visit__card:hover {
  border-color: rgba(242, 196, 109, 0.6);
}

.page-contact .visit__card .exhibit-label {
  color: var(--celadon);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-contact .visit__addr {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--paper);
  margin: 12px 0;
  line-height: 1.55;
  letter-spacing: 0.02em;
  font-weight: 600;
}

.page-contact .visit__card > p {
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

.page-contact .visit__hint {
  display: inline-flex;
  align-items: center;
  margin-top: 16px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(111, 175, 159, 0.14);
  border: 1px solid rgba(111, 175, 159, 0.4);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--celadon);
  letter-spacing: 0.06em;
  opacity: 1;
  transition: opacity .22s var(--ease), transform .22s var(--ease), background .22s var(--ease);
}

@media (hover: hover) and (min-width: 880px) {
  .page-contact .visit__hint {
    position: absolute;
    top: 14px;
    right: 16px;
    margin-top: 0;
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
  }
  .page-contact .visit__card:hover .visit__hint {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-contact .visit__aside {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--panel-2);
  border: 1px solid var(--line-faint);
}

.page-contact .visit__aside-title {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--paper);
  margin: 0 0 10px;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.page-contact .visit__aside p {
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
  margin: 0 0 16px;
}

.page-contact .visit__aside .btn {
  margin-top: 2px;
}

/* ========== 页脚前呼吸区 ========== */
.page-contact__end {
  height: 56px;
}

@media (min-width: 880px) {
  .page-contact__end {
    height: 88px;
  }
}