/* ===== 页面作用域：联系我们 ===== */
.page-contact {
  --c-gold-soft: rgba(212, 175, 55, .18);
  --c-deep-soft: rgba(26, 58, 107, .08);
  --c-red-soft: rgba(230, 57, 70, .08);
  --c-dark-grad: linear-gradient(135deg, #0B1F3A 0%, #1A3A6B 100%);
  position: relative;
  background-color: var(--c-light);
  background-image: repeating-linear-gradient(120deg, rgba(26, 58, 107, .028) 0, rgba(26, 58, 107, .028) 1px, transparent 1px, transparent 18px);
  overflow-x: hidden;
  color: var(--c-text);
}

.page-contact::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 280px;
  background: linear-gradient(120deg, transparent 0%, var(--c-gold-soft) 100%);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
  z-index: 0;
}

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

/* 面包屑 */
.page-contact .breadcrumb {
  margin-bottom: 24px;
  font-family: var(--f-mono);
  font-size: .78rem;
}

/* 首屏主题声明 */
.page-contact .contact-lead {
  padding: 14px 0 30px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--c-border);
  position: relative;
}

.page-contact .contact-lead::after {
  content: '';
  position: absolute;
  bottom: -1px;
  right: 0;
  width: 140px;
  height: 4px;
  background: linear-gradient(90deg, var(--c-gold), rgba(212, 175, 55, .2));
}

.page-contact .lead-block {
  padding: 0;
  background: transparent;
  max-width: 820px;
}

.page-contact .lead-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--c-gold);
  margin-bottom: 14px;
}

.page-contact .lead-kicker::before {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--c-gold);
}

.page-contact .lead-block h1 {
  font-size: clamp(1.65rem, 4.5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--c-dark);
  margin: 0 0 14px;
}

.page-contact .lead-desc {
  color: var(--c-text2);
  max-width: 680px;
  font-size: 1rem;
  line-height: 1.7;
}

.page-contact .lead-desc strong {
  color: var(--c-deep);
  font-family: var(--f-mono);
  background: var(--c-gold-soft);
  padding: 2px 8px;
  border-radius: 6px;
  word-break: break-all;
}

/* 章节通用 */
.page-contact .section-group + .section-group {
  margin-top: 72px;
}

.page-contact .section-heading {
  display: grid;
  grid-template-columns: 62px 1fr;
  column-gap: 16px;
  row-gap: 4px;
  align-items: start;
  margin-bottom: 28px;
}

.page-contact .section-index {
  font-family: var(--f-mono);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: .9;
  color: var(--c-deep);
  grid-row: 1 / span 2;
  align-self: center;
  opacity: .9;
  position: relative;
}

.page-contact .section-index::after {
  content: '';
  display: block;
  width: 34px;
  height: 3px;
  background: var(--c-gold);
  margin-top: 8px;
}

.page-contact .section-title {
  grid-column: 2;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0;
  color: var(--c-dark);
}

.page-contact .section-desc {
  grid-column: 2;
  color: var(--c-text2);
  font-size: .9rem;
  margin: 0;
}

/* ===== 01 联系渠道 ===== */
.page-contact .channels-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .channels-media {
  margin: 0 0 24px;
  border-radius: 16px;
  overflow: hidden;
  background: var(--c-deep);
  border: 1px solid var(--c-border);
}

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

.page-contact .channels-media .media-caption {
  padding: 10px 16px;
  font-family: var(--f-mono);
  font-size: .75rem;
  color: var(--c-text2);
  border-top: 1px solid var(--c-border);
}

.page-contact .channels-list {
  display: grid;
  gap: 12px;
}

.page-contact .channel-card {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-deep);
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateX(5px);
  border-left-color: var(--c-gold);
  box-shadow: 0 10px 28px rgba(11, 31, 58, .08);
}

.page-contact .channel-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

.page-contact .channel-card--email .channel-icon {
  background: var(--c-gold-soft);
  color: var(--c-gold);
}

.page-contact .channel-card--phone .channel-icon {
  background: var(--c-deep-soft);
  color: var(--c-deep);
}

.page-contact .channel-card--address .channel-icon {
  background: var(--c-red-soft);
  color: var(--c-red);
}

.page-contact .channel-icon svg {
  width: 20px;
  height: 20px;
  flex: none;
}

.page-contact .channel-body h3 {
  font-family: var(--f-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-text2);
  margin: 0 0 3px;
}

.page-contact .channel-value {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--c-dark);
  word-break: break-all;
  user-select: all;
  -webkit-user-select: all;
  line-height: 1.45;
}

.page-contact .channel-note {
  color: var(--c-text2);
  font-size: .8rem;
  margin-top: 6px;
  line-height: 1.5;
}

/* 右侧视觉 */
.page-contact .channels-aside {
  background: var(--c-dark-grad);
  border-radius: 18px;
  padding: 12px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.page-contact .channels-aside::after {
  content: '';
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(212, 175, 55, .18);
}

.page-contact .aside-media {
  background: transparent;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 12px;
  overflow: hidden;
}

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

.page-contact .aside-media .media-caption {
  padding: 10px 12px;
  font-family: var(--f-mono);
  font-size: .72rem;
  color: rgba(255, 255, 255, .8);
  border-top: 1px solid rgba(255, 255, 255, .1);
}

.page-contact .aside-response {
  margin-top: 14px;
  padding: 16px 14px 8px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  position: relative;
  z-index: 1;
}

.page-contact .aside-response-label {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .72);
}

.page-contact .aside-response-value {
  display: block;
  font-family: var(--f-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-gold);
  line-height: 1.15;
  margin-top: 6px;
}

.page-contact .aside-response-desc {
  margin-top: 8px;
  font-size: .82rem;
  color: rgba(255, 255, 255, .85);
}

/* ===== 02 响应时间 ===== */
.page-contact .response-banner {
  background: var(--c-dark-grad);
  border-radius: 18px;
  padding: 28px 24px;
  color: #fff;
  display: grid;
  gap: 28px;
  position: relative;
  overflow: hidden;
}

.page-contact .response-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(212, 175, 55, .22) 0%, transparent 70%);
  transform: translate(25%, -25%);
}

.page-contact .response-banner::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-red), transparent);
}

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

.page-contact .response-big {
  font-family: var(--f-mono);
  font-size: clamp(2.6rem, 8vw, 4rem);
  font-weight: 800;
  line-height: 1;
  color: var(--c-gold);
  display: block;
  margin-bottom: 6px;
}

.page-contact .response-label {
  font-family: var(--f-mono);
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .72);
  font-size: .76rem;
}

.page-contact .response-main > p:last-child {
  margin-top: 12px;
  color: rgba(255, 255, 255, .85);
  line-height: 1.6;
}

.page-contact .response-list {
  display: grid;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.page-contact .response-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(255, 255, 255, .2);
}

.page-contact .response-tag {
  flex: 0 0 auto;
  font-family: var(--f-mono);
  font-size: .74rem;
  font-weight: 700;
  color: var(--c-gold);
  background: rgba(212, 175, 55, .12);
  padding: 4px 8px;
  border-radius: 6px;
}

.page-contact .response-item p {
  margin: 0;
  color: rgba(255, 255, 255, .9);
  font-size: .9rem;
  line-height: 1.5;
}

/* ===== 03 关于联系方式 ===== */
.page-contact .boundary-grid {
  display: grid;
  gap: 14px;
}

.page-contact .boundary-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 14px;
  padding: 22px 22px 20px;
  position: relative;
  overflow: hidden;
}

.page-contact .boundary-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-gold), rgba(212, 175, 55, .1) 70%);
}

.page-contact .boundary-card:last-child::before {
  background: linear-gradient(90deg, var(--c-deep), rgba(26, 58, 107, .1) 70%);
}

.page-contact .boundary-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-contact .boundary-card__code {
  font-family: var(--f-mono);
  font-weight: 800;
  color: var(--c-deep);
  background: var(--c-deep-soft);
  padding: 2px 8px;
  border-radius: 6px;
}

.page-contact .boundary-card h3 {
  font-size: 1rem;
  font-weight: 900;
  margin: 0;
  color: var(--c-dark);
}

.page-contact .boundary-card p {
  color: var(--c-text2);
  font-size: .9rem;
  line-height: 1.65;
  margin: 0 0 10px;
}

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

.page-contact .boundary-card code {
  font-family: var(--f-mono);
  font-weight: 700;
  color: var(--c-deep);
  background: var(--c-gold-soft);
  padding: 2px 6px;
  border-radius: 4px;
  word-break: break-all;
}

/* ===== 相关页面与返回顶部 ===== */
.page-contact .contact-quicklinks {
  margin-top: 64px;
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
}

.page-contact .contact-quicklinks h3 {
  font-family: var(--f-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-text2);
  margin: 0;
}

.page-contact .quicklinks-desc {
  color: var(--c-text2);
  font-size: .88rem;
  max-width: 560px;
  margin: 8px auto 0;
  line-height: 1.6;
}

.page-contact .contact-quicklinks ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 0;
  margin: 14px 0 0;
}

.page-contact .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: .86rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-contact .btn-outline {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  color: var(--c-deep);
}

.page-contact .btn-outline:hover {
  border-color: var(--c-gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(11, 31, 58, .08);
}

.page-contact .contact-backtop-wrap {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

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

@media (min-width: 920px) {
  .page-contact .section-heading {
    grid-template-columns: 76px 1fr;
  }

  .page-contact .channels-layout {
    grid-template-columns: 1.25fr .75fr;
    align-items: start;
  }

  .page-contact .channels-aside {
    position: sticky;
    top: 24px;
  }

  .page-contact .response-banner {
    grid-template-columns: 1fr 1fr;
    padding: 34px 36px;
  }
}