/* ===== 联系入口页专属样式 ===== */
.page-contact {
  position: relative;
  background-color: var(--paper);
}

.page-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.25;
  pointer-events: none;
}

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

/* 面包屑 */
.page-contact .breadcrumb {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 24px 20px 0;
}

/* 页头 */
.page-contact .contact-hero {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 48px 20px 40px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.15;
  margin: 14px 0 12px;
}

.page-contact .contact-hero p {
  max-width: 520px;
  color: var(--gray);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin: 0;
}

.page-contact .contact-hero .tag {
  background: var(--accent);
  color: var(--ink);
}

/* 通用区块标题 */
.page-contact .section-head {
  margin-bottom: 28px;
}

.page-contact .section-head h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 6px;
}

.page-contact .section-subtitle {
  color: var(--gray);
  font-size: 0.9375rem;
  margin: 0;
}

/* 官方渠道布局 */
.page-contact .contact-channels {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px 64px;
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .channel-side {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

/* 卡片基础样式 */
.page-contact .channel-card {
  background: var(--white);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

/* 邮箱卡片 */
.page-contact .channel-email {
  background: var(--ink);
  border: none;
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow: hidden;
  position: relative;
}

.page-contact .channel-email::after {
  content: "";
  position: absolute;
  right: -48px;
  bottom: -48px;
  width: 140px;
  height: 140px;
  background: rgba(255, 165, 0, 0.12);
  border-radius: 50%;
}

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

.page-contact .email-tag {
  background: var(--secondary-accent) !important;
  color: var(--white) !important;
  border: none;
}

.page-contact .channel-email h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--white);
  margin: 8px 0 0;
}

.page-contact .channel-note {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  margin: 4px 0 0;
}

.page-contact .email-link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 2px solid rgba(255, 165, 0, 0.5);
  padding-bottom: 6px;
  margin-top: 10px;
  transition: border-bottom-color 0.2s;
}

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

.page-contact .channel-desc {
  color: var(--gray);
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 8px 0 0;
}

.page-contact .channel-email .channel-desc {
  color: rgba(255, 255, 255, 0.7);
}

.page-contact .channel-email .channel-img {
  max-width: 140px;
  margin-left: auto;
  position: relative;
  z-index: 1;
}

.page-contact .channel-email .channel-img img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(0.8);
}

/* 电话卡片 */
.page-contact .channel-phone {
  border-style: solid;
  border-color: var(--line);
}

.page-contact .channel-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255, 165, 0, 0.15);
  border-radius: 50%;
  color: var(--accent);
  margin-bottom: 8px;
}

.page-contact .channel-phone h3,
.page-contact .channel-response h3,
.page-contact .channel-address h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  color: var(--ink);
  margin: 8px 0 6px;
}

.page-contact .phone-link {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s;
}

.page-contact .phone-link:hover {
  color: var(--accent);
}

/* 响应时效卡片 */
.page-contact .channel-response {
  background: #FFF8E8;
  border-color: #F0E0BE;
}

.page-contact .response-num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
  margin: 10px 0 4px;
}

.page-contact .response-num small {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--gray);
  margin-left: 4px;
}

/* 地址卡片 */
.page-contact .channel-address {
  grid-column: 1 / -1;
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-style: solid;
  border-color: var(--line);
}

.page-contact .address-info {
  padding: 28px;
}

.page-contact .address-text {
  font-size: 1.0625rem;
  color: var(--ink);
  font-weight: 700;
  margin: 8px 0 0;
}

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

/* 沟通范围 */
.page-contact .contact-scope {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px 72px;
}

.page-contact .scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .scope-block {
  border-top: 3px solid var(--ink);
  padding-top: 18px;
}

.page-contact .scope-block h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--ink);
  margin: 0 0 10px;
  padding-left: 16px;
  position: relative;
}

.page-contact .scope-block h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 7px;
  height: 7px;
  background: var(--accent);
  transform: skew(-20deg);
}

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

.page-contact .scope-block li {
  padding: 10px 0 10px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--gray);
  font-size: 0.9375rem;
  line-height: 1.6;
  position: relative;
}

.page-contact .scope-block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 5px;
  height: 5px;
  background: var(--line);
  border-radius: 50%;
}

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

.page-contact .scope-more {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--gray);
  font-size: 0.9375rem;
}

.page-contact .scope-more a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: color 0.2s;
}

.page-contact .scope-more a:hover {
  color: var(--accent);
}

/* 品牌合作 */
.page-contact .contact-partnership {
  background: var(--ink);
  color: var(--white);
}

.page-contact .partnership-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 64px 20px 60px;
  position: relative;
  overflow: hidden;
}

.page-contact .partnership-inner::after {
  content: "Cooperation";
  position: absolute;
  right: 20px;
  bottom: -8px;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.05);
  line-height: 1;
  pointer-events: none;
  white-space: nowrap;
}

.page-contact .partner-tag {
  background: var(--accent);
  color: var(--ink);
  border: none;
}

.page-contact .partnership-inner h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--white);
  margin: 16px 0 14px;
}

.page-contact .partnership-inner p {
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 0 14px;
}

.page-contact .partnership-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

/* 桌面端：非对称双列布局 */
@media (min-width: 768px) {
  .page-contact .channel-grid {
    grid-template-columns: 2fr 1fr;
  }

  .page-contact .channel-email {
    grid-row: span 2;
  }

  .page-contact .channel-address {
    grid-column: 1 / -1;
  }

  .page-contact .channel-email .channel-img {
    max-width: 200px;
  }

  .page-contact .scope-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .page-contact .contact-hero {
    padding: 72px 20px 48px;
  }

  .page-contact .contact-hero h1 {
    font-size: 3rem;
  }
}

/* 大屏增强 */
@media (min-width: 1024px) {
  .page-contact .channel-email .email-link {
    font-size: 2rem;
  }

  .page-contact .channel-email .channel-img {
    max-width: 240px;
  }

  .page-contact .channel-email {
    padding: 40px 36px;
  }
}