/* ===== 联系通道页面 ===== */
.page-contact {
  --contact-hero-bg: var(--color-deepblue);
  --channel-card-bg: rgba(255, 255, 255, 0.035);
  --channel-card-line: rgba(255, 255, 255, 0.09);
  --channel-code: rgba(200, 255, 0, 0.85);
  --business-line: rgba(22, 28, 36, 0.08);
  background: var(--color-abyss);
  overflow-x: hidden;
}

/* —— 首屏 Hero —— */
.page-contact .contact-hero {
  position: relative;
  background: var(--contact-hero-bg);
  padding: 28px 0 40px;
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -100px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 255, 0, 0.1), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: 36px;
}

.page-contact .contact-hero__copy {
  max-width: 720px;
  padding-bottom: 36px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.2;
  color: var(--color-paper);
  margin: 0 0 18px;
  letter-spacing: 0.01em;
}

.page-contact .contact-hero__lead {
  color: var(--color-warmgray);
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 28px;
  max-width: 60ch;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-contact .contact-hero__media {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-space);
  border: 1px solid var(--line-dark-strong);
  aspect-ratio: 16 / 6;
}

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

/* —— 01 联系通道 —— */
.page-contact .contact-channels {
  padding: 72px 0 56px;
}

.page-contact .contact-channels .section-head {
  margin-bottom: 44px;
}

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

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--channel-card-bg);
  border: 1px solid var(--channel-card-line);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  width: 36px;
  height: 4px;
  background: var(--color-lime);
  clip-path: polygon(0 0, 100% 0, 82% 100%, 0 100%);
  border-radius: 0 0 2px 2px;
  opacity: 0.9;
}

.page-contact .channel-card:hover {
  border-color: var(--color-terra);
  transform: translateX(2px);
}

.page-contact .channel-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-bottom: 26px;
}

.page-contact .channel-card__index {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--channel-code);
  letter-spacing: 0.06em;
}

.page-contact .channel-card__label {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--color-warmgray);
  margin: 0 0 8px;
  font-weight: 600;
}

.page-contact .channel-card__value {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.4;
  color: var(--color-paper);
  word-break: break-all;
  margin: 0 0 12px;
  letter-spacing: 0.02em;
}

.page-contact .channel-card__value--button {
  display: inline-block;
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
}

.page-contact .channel-card__value--button::after {
  content: "复制";
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--color-lime);
  margin-left: 10px;
  vertical-align: middle;
  opacity: 0.85;
}

.page-contact .channel-card__value--button.is-copied::after {
  content: "已复制";
}

.page-contact .channel-card__value--button:hover {
  color: var(--color-lime);
}

.page-contact .channel-card__value--link {
  display: inline-block;
  color: var(--color-paper);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.3);
}

.page-contact .channel-card__scope {
  font-size: 13px;
  color: var(--color-stone);
  margin: 0;
  line-height: 1.5;
}

.page-contact .channels-tip {
  margin: 28px 0 0;
  padding: 16px 20px;
  border-left: 3px solid var(--color-moss);
  background: rgba(200, 255, 0, 0.04);
  color: var(--color-warmgray);
  font-size: 14px;
  line-height: 1.6;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* —— 02 商务合作 —— */
.page-contact .contact-business {
  padding: 72px 0;
}

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

.page-contact .section-head--light .section-desc {
  color: #4a4a44;
}

.page-contact .business-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 44px;
}

.page-contact .business-item {
  position: relative;
  background: var(--color-paper-dim);
  border: 1px solid var(--business-line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  transition: border-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);
}

.page-contact .business-item:hover {
  border-color: var(--color-terra);
  transform: translateX(2px);
}

.page-contact .business-item__num {
  display: block;
  font-family: var(--font-display);
  font-size: 42px;
  line-height: 1;
  color: var(--color-terra);
  margin-bottom: 18px;
  font-weight: 700;
}

.page-contact .business-item h3 {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--color-abyss);
  margin: 0 0 10px;
}

.page-contact .business-item p {
  font-size: 15px;
  color: #4a4a44;
  line-height: 1.7;
  margin: 0;
}

/* —— 03 常见入口 —— */
.page-contact .contact-links {
  padding: 72px 0 80px;
}

.page-contact .contact-links__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-contact .link-row {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04);
  border-left: 3px solid var(--color-moss);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: border-color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out), background var(--motion-fast) var(--ease-out);
}

.page-contact .link-row + .link-row {
  margin-top: 12px;
}

.page-contact .link-row:hover {
  border-left-color: var(--color-terra);
  background: rgba(255, 255, 255, 0.07);
  transform: translateX(2px);
}

.page-contact .link-row:focus-visible {
  outline: 2px solid var(--color-lime);
  outline-offset: 4px;
}

.page-contact .link-row__code {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-radius: var(--radius-pill);
  background: rgba(200, 255, 0, 0.08);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-lime);
}

.page-contact .link-row__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.page-contact .link-row__body strong {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--color-paper);
  margin-bottom: 4px;
}

.page-contact .link-row__body small {
  font-size: 13px;
  color: var(--color-stone);
  line-height: 1.45;
}

.page-contact .link-row__arrow {
  font-size: 20px;
  color: var(--color-warmgray);
  transition: color var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);
}

.page-contact .link-row:hover .link-row__arrow {
  color: var(--color-terra);
  transform: translateX(2px);
}

/* —— 04 办公与访问 —— */
.page-contact .contact-visit {
  padding: 72px 0;
  background: var(--contact-hero-bg);
}

.page-contact .visit-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 44px;
}

.page-contact .visit-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-dark-strong);
  aspect-ratio: 4 / 3;
  background: var(--color-space);
}

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

.page-contact .visit-guide h3 {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--color-paper);
  margin: 0 0 18px;
}

.page-contact .visit-guide ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .visit-guide li {
  position: relative;
  padding-left: 24px;
  color: var(--color-warmgray);
  font-size: 15px;
  line-height: 1.65;
  margin-bottom: 12px;
}

.page-contact .visit-guide li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-terra);
}

.page-contact .visit-map {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  margin-top: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background-color: var(--color-moss-dark);
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 20px 20px;
}

.page-contact .visit-map__dot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 16px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--color-orange);
  box-shadow: 0 0 0 8px rgba(255, 106, 60, 0.18), 0 0 0 20px rgba(255, 106, 60, 0.08);
}

.page-contact .visit-map__label {
  position: relative;
  z-index: 1;
  max-width: 90%;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-dark-strong);
  background: rgba(11, 21, 36, 0.85);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-warmgray);
  text-align: center;
}

/* —— 桌面端 —— */
@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-top: 40px;
  }

  .page-contact .contact-hero__media {
    aspect-ratio: 21 / 8;
  }

  .page-contact .contact-channels {
    padding: 110px 0 80px;
  }

  .page-contact .contact-channels .section-head {
    max-width: 640px;
  }

  .page-contact .channels-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-contact .channel-card:nth-child(2) {
    margin-top: 16px;
  }

  .page-contact .contact-business {
    padding: 110px 0;
  }

  .page-contact .contact-business .section-head {
    max-width: 640px;
  }

  .page-contact .business-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-contact .business-item:nth-child(2) {
    margin-top: 24px;
  }

  .page-contact .contact-links {
    padding: 110px 0 120px;
  }

  .page-contact .contact-links__layout {
    grid-template-columns: 0.9fr 1.3fr;
    gap: 64px;
    align-items: start;
  }

  .page-contact .contact-visit {
    padding: 110px 0;
  }

  .page-contact .visit-layout {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .page-contact .visit-map {
    min-height: 280px;
    margin-top: 56px;
  }
}

/* —— 大屏标题量级微调 —— */
@media (min-width: 1200px) {
  .page-contact .contact-hero h1 {
    font-size: 52px;
  }
}

/* —— 减少动态偏好 —— */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .business-item,
  .page-contact .link-row,
  .page-contact .channel-card__value--button,
  .page-contact .channel-card__value--link {
    transition: none;
  }
}