/* ======== 联系我们 ======== */
.page-contact {
  --contact-grid-line: var(--c-grid);
  --contact-panel: var(--c-panel);
  --contact-muted: var(--c-muted);
  background: var(--c-space);
  color: var(--c-paper);
  position: relative;
  overflow: hidden;
}

.page-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(var(--contact-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--contact-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.2;
  pointer-events: none;
}

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

.page-contact .contact-hero,
.page-contact .contact-feedback,
.page-contact .contact-landmark {
  position: relative;
  z-index: 1;
}

.page-contact h1,
.page-contact h2 {
  font-family: var(--f-headline);
  line-height: 1.16;
  letter-spacing: 0.015em;
  text-transform: uppercase;
}

.page-contact h1 {
  font-size: clamp(26px, 5vw, 46px);
  transform: skewX(-6deg);
  margin: 14px 0 0;
}

.page-contact h2 {
  font-size: clamp(22px, 3.2vw, 32px);
  margin: 12px 0 0;
}

/* ===== Hero 首屏 ===== */
.page-contact .contact-hero {
  padding: 36px 0 72px;
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -18%;
  width: 62%;
  height: 128%;
  background: linear-gradient(145deg, transparent 18%, var(--contact-panel) 100%);
  transform: skewX(-14deg);
  border-left: 1px solid var(--contact-grid-line);
  z-index: 0;
  opacity: 0.55;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  align-items: center;
}

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

.page-contact .contact-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--contact-muted);
  margin: 18px 0 30px;
  max-width: 62ch;
}

.page-contact .contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-item {
  background: rgba(17, 42, 74, 0.72);
  border: 1px solid var(--contact-grid-line);
  border-left: 3px solid var(--c-pitch);
  padding: 18px 20px;
  border-radius: 2px;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .contact-item:hover {
  border-color: var(--c-pitch);
  border-left-color: var(--c-flame);
  transform: translateX(4px);
  box-shadow: 0 6px 24px rgba(0, 227, 115, 0.08);
}

.page-contact .contact-item__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.page-contact .contact-item__index {
  font-family: var(--f-index);
  font-size: 12px;
  color: var(--contact-muted);
  letter-spacing: 0.08em;
}

.page-contact .contact-item__label {
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-pitch);
}

.page-contact .contact-item__value {
  display: inline-block;
  font-family: var(--f-index);
  font-size: 16px;
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  overflow-wrap: anywhere;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact a.contact-item__value:hover,
.page-contact a.contact-item__value:focus-visible {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
  outline: none;
}

.page-contact .contact-item__note {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--contact-muted);
}

.page-contact .contact-hero__visual {
  position: relative;
}

.page-contact .contact-hero__photo-frame {
  position: relative;
  border: 1px solid var(--contact-grid-line);
  background: var(--contact-panel);
  padding: 10px;
  box-shadow: 18px 18px 0 rgba(0, 227, 115, 0.08);
}

.page-contact .contact-hero__photo {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(0.9) contrast(1.04);
}

.page-contact .contact-hero__photo-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 10px;
}

.page-contact .contact-hero__photo-title {
  font-family: var(--f-index);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-paper);
}

/* ===== 咨询与反馈 ===== */
.page-contact .contact-feedback {
  background: var(--c-paper);
  color: var(--c-ink);
  padding: 64px 0 56px;
}

.page-contact .contact-feedback::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-pitch) 0%, var(--c-flame) 70%, var(--c-space) 100%);
}

.page-contact .contact-feedback .section-label {
  color: var(--c-ink);
}

.page-contact .contact-feedback__heading h2 {
  color: var(--c-ink);
}

.page-contact .contact-feedback__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 36px;
}

.page-contact .topic-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .topic-item {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 14px 16px;
  background: rgba(11, 30, 59, 0.045);
  border-left: 2px solid var(--c-flame);
  transition: background 0.2s ease, transform 0.2s ease;
}

.page-contact .topic-item:hover {
  background: rgba(11, 30, 59, 0.08);
  transform: translateX(2px);
}

.page-contact .topic-item__num {
  font-family: var(--f-index);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-flame);
  flex-shrink: 0;
  min-width: 26px;
}

.page-contact .topic-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-ink);
}

.page-contact .contact-feedback__action {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: flex-start;
}

.page-contact .contact-mail-btn {
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.page-contact .contact-feedback__hint {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-contact .contact-feedback__hint a {
  color: var(--c-flame);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .contact-feedback__links {
  margin-top: 12px;
  padding-top: 14px;
  border-top: 1px solid rgba(10, 20, 40, 0.15);
  width: 100%;
}

.page-contact .coordinate-label--dark {
  color: var(--c-muted);
}

.page-contact .contact-feedback__links-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.page-contact .contact-feedback__links-grid a {
  font-family: var(--f-index);
  font-size: 13px;
  color: var(--c-ink);
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid var(--c-ink);
  transition: background 0.2s ease, color 0.2s ease;
}

.page-contact .contact-feedback__links-grid a:hover {
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-contact .contact-feedback__media {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(10, 20, 40, 0.18);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.page-contact .contact-feedback__media img {
  max-width: 360px;
  width: 100%;
  height: auto;
  border: 1px solid var(--c-ink);
  box-shadow: 8px 8px 0 rgba(255, 91, 53, 0.18);
}

/* ===== 位置与地标 ===== */
.page-contact .contact-landmark {
  background: var(--c-deep);
  padding: 64px 0 80px;
  overflow: hidden;
}

.page-contact .contact-landmark::after {
  content: "";
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 227, 115, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.page-contact .contact-landmark__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  align-items: center;
}

.page-contact .contact-landmark__text p {
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
  margin: 0 0 14px;
}

.page-contact .contact-landmark__svg {
  width: 100%;
  max-width: 600px;
}

.page-contact .contact-landmark__svg svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ===== 桌面断点 ===== */
@media (min-width: 768px) {
  .page-contact .contact-hero {
    padding: 56px 0 96px;
  }

  .page-contact .contact-hero::before {
    opacity: 1;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 60px;
  }

  .page-contact .contact-feedback {
    padding: 80px 0 64px;
  }

  .page-contact .contact-feedback__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
  }

  .page-contact .contact-feedback__media img {
    max-width: 400px;
  }

  .page-contact .contact-landmark {
    padding: 80px 0 96px;
  }

  .page-contact .contact-landmark__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
  }
}