/* ===== 联系页面 · 天行体育 / CONTACT ===== */
.page-contact {
  --contact-pad: 16px;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  position: relative;
}

.page-contact .container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--contact-pad);
}

/* 页面背景微网格 */
.page-contact .contact-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

.page-contact .breadcrumb,
.page-contact .contact-hero,
.page-contact .contact-channels,
.page-contact .contact-visual,
.page-contact .cooperation-zone,
.page-contact .address-zone,
.page-contact .response-zone {
  position: relative;
  z-index: 1;
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 16px;
  padding-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}

.page-contact .breadcrumb a {
  color: var(--color-accent-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast) ease;
}

.page-contact .breadcrumb a:hover {
  border-bottom-color: var(--color-accent-blue);
}

.page-contact .breadcrumb__sep {
  color: var(--color-accent-green);
  margin-inline: 4px;
}

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

/* 通用标题与标签 */
.page-contact .section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin: 0 0 12px;
}

.page-contact .section-label::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-accent-green);
  vertical-align: middle;
  margin-right: 10px;
}

.page-contact h1 {
  font-family: var(--font-heading);
  font-size: clamp(56px, 8vw, 96px);
  font-weight: 800;
  font-style: italic;
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 0 0 16px;
  color: var(--color-text);
}

.page-contact h2 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  font-style: italic;
  line-height: 1.1;
  margin: 0;
  color: var(--color-text);
}

.page-contact h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  color: var(--color-text);
}

.page-contact a {
  transition: border-color var(--transition-fast) ease, color var(--transition-fast) ease;
}

/* Hero 区 */
.page-contact .contact-hero {
  padding-top: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 56px;
}

.page-contact .contact-hero__main {
  margin-bottom: 32px;
}

.page-contact .contact-hero__lead {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 36em;
  margin: 0;
}

.page-contact .contact-hero__panel {
  background: var(--color-glass);
  border: 1px solid var(--color-border);
  padding: 20px 24px;
}

.page-contact .contact-hero__panel-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--color-accent-green);
  margin-bottom: 14px;
}

.page-contact .contact-hero__panel dl {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-hero__panel dl > div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.page-contact .contact-hero__panel dl > div:last-child {
  border-bottom: none;
}

.page-contact .contact-hero__panel dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
}

.page-contact .contact-hero__panel dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent-green);
}

/* 官方联系方式 */
.page-contact .contact-channels {
  margin-bottom: 48px;
}

.page-contact .contact-channels__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.page-contact .contact-channels__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .channel-card {
  position: relative;
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  padding: 24px;
  transition: border-color var(--transition-fast) ease, transform var(--transition-fast) ease;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: var(--color-accent-green);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  opacity: 0.7;
}

.page-contact .channel-card:hover {
  border-color: var(--color-accent-green);
  transform: translateY(-2px);
}

.page-contact .channel-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.page-contact .channel-card__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-accent-blue);
  background: rgba(0, 191, 255, 0.08);
  padding: 4px 10px;
}

.page-contact .channel-card h3 {
  margin-bottom: 14px;
}

.page-contact .channel-card__value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-accent-green);
  border-bottom: 1px solid rgba(0, 255, 136, 0.4);
  padding-bottom: 2px;
  word-break: break-all;
  cursor: pointer;
}

.page-contact .channel-card__value:hover,
.page-contact .channel-card__value:focus-visible {
  border-bottom-color: var(--color-accent-green);
  outline: none;
}

.page-contact .channel-card__desc {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* 视觉带 */
.page-contact .contact-visual {
  margin-bottom: 56px;
}

.page-contact .contact-visual img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  object-fit: cover;
}

.page-contact .contact-visual figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

/* 赛事合作 */
.page-contact .cooperation-zone {
  margin-bottom: 48px;
}

.page-contact .cooperation-zone__inner {
  display: grid;
  gap: 28px;
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--color-panel) 0%, rgba(17, 24, 39, 0.4) 100%);
  padding: 32px 24px;
}

.page-contact .cooperation-zone__lead {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 12px 0 0;
}

.page-contact .cooperation-phone {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-accent-orange);
  white-space: nowrap;
}

.page-contact .cooperation-zone__note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-top: 10px;
}

.page-contact .cooperation-zone__topics h3 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.page-contact .cooperation-zone__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .cooperation-zone__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text);
  transition: background-color var(--transition-fast) ease, padding-left var(--transition-fast) ease;
}

.page-contact .cooperation-zone__list li:hover {
  background: rgba(255, 255, 255, 0.04);
  padding-left: 8px;
}

.page-contact .cooperation-zone__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent-blue);
  min-width: 24px;
}

/* 地址与位置 */
.page-contact .address-zone {
  display: grid;
  gap: 24px;
  margin-bottom: 48px;
}

.page-contact .address-zone__value {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.6;
  color: var(--color-text);
  border-left: 3px solid var(--color-accent-green);
  padding-left: 16px;
  margin: 14px 0 0;
}

.page-contact .address-zone__note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-top: 12px;
}

.page-contact .address-zone__map {
  margin: 0;
  border: 1px solid var(--color-border);
  background: var(--color-panel);
}

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

.page-contact .address-zone__map figcaption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-accent-blue);
  border-top: 1px solid var(--color-border);
}

/* 回复时效 */
.page-contact .response-zone {
  position: relative;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
  margin-bottom: 48px;
}

.page-contact .response-zone::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-green) 0%, var(--color-accent-blue) 70%, transparent 100%);
}

.page-contact .response-zone__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 24px 0;
}

.page-contact .response-item {
  border: 1px solid var(--color-border);
  background: var(--color-panel);
  padding: 24px;
}

.page-contact .response-item h3 {
  margin: 12px 0 8px;
  font-size: 24px;
}

.page-contact .response-item p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}

.page-contact .response-zone__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
}

.page-contact .response-zone__links p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

.page-contact .response-zone__links a {
  color: var(--color-accent-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .response-zone__links a:hover {
  color: var(--color-accent-green);
  border-bottom-color: var(--color-accent-green);
}

/* 键盘焦点 */
.page-contact a:focus-visible,
.page-contact [tabindex]:focus-visible {
  outline: 2px solid var(--color-accent-green);
  outline-offset: 4px;
}

/* ≥768px 平板 */
@media (min-width: 768px) {
  .page-contact {
    --contact-pad: 24px;
  }

  .page-contact .breadcrumb {
    padding-top: var(--space-3);
    padding-bottom: var(--space-2);
  }

  .page-contact .contact-hero {
    padding-top: 64px;
    padding-bottom: 56px;
  }

  .page-contact .contact-hero__grid {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 48px;
    align-items: end;
  }

  .page-contact .contact-hero__main {
    margin-bottom: 0;
  }

  .page-contact .contact-channels__list {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .page-contact .cooperation-zone__inner {
    grid-template-columns: 1fr 1fr;
    padding: 40px;
  }

  .page-contact .cooperation-zone__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    column-gap: 32px;
  }

  .page-contact .address-zone {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
  }

  .page-contact .response-zone__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .response-zone__links {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* ≥1200px 桌面 */
@media (min-width: 1200px) {
  .page-contact .contact-hero {
    padding-top: 72px;
    padding-bottom: 64px;
    margin-bottom: 64px;
  }

  .page-contact h1 {
    font-size: 96px;
  }

  .page-contact .contact-channels__head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 32px;
  }

  .page-contact .contact-channels__list {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-contact .channel-card--main {
    grid-column: span 5;
  }

  .page-contact .channel-card:nth-child(2) {
    grid-column: span 4;
  }

  .page-contact .channel-card:nth-child(3) {
    grid-column: span 3;
  }

  .page-contact .cooperation-zone__inner {
    grid-template-columns: 5fr 7fr;
    padding: 48px;
  }

  .page-contact .cooperation-phone {
    font-size: 34px;
  }
}