.page-contact {
  --contact-cut: 22px;
  --contact-panel: rgba(216, 228, 234, 0.055);
  --contact-panel-strong: rgba(216, 228, 234, 0.10);
  --contact-ink-soft: var(--mist);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 4vw, 44px) 0 clamp(36px, 6vw, 76px);
  background:
    radial-gradient(120% 90% at 84% 6%, rgba(55, 183, 179, 0.22), transparent 62%),
    radial-gradient(90% 70% at 4% 0%, rgba(232, 162, 58, 0.14), transparent 64%);
}

.page-contact .contact-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-eyebrow {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lake-soft);
}

.page-contact h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(2rem, 5.2vw, 3.9rem);
  line-height: 1.1;
  color: var(--paper);
}

.page-contact .contact-lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(0.98rem, 1.4vw, 1.06rem);
  line-height: 1.8;
  color: var(--pale);
}

.page-contact .contact-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-marks {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.86rem;
  color: var(--contact-ink-soft);
}

.page-contact .contact-marks li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.page-contact .contact-mark-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lake);
  box-shadow: 0 0 0 4px rgba(55, 183, 179, 0.14);
}

.page-contact .contact-hero-media {
  margin: 0;
  border: 1px solid var(--line-lake);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  background: var(--deep);
}

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

/* ---------- 章节统一微调 ---------- */
.page-contact .chapter-num {
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-contact .section-lead {
  max-width: 62ch;
}

/* ---------- 三条通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(24px, 3.5vw, 38px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(158deg, var(--contact-panel-strong), rgba(6, 16, 28, 0.32));
  border: 1px solid var(--line-lake);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-3px);
  border-color: rgba(143, 224, 220, 0.55);
}

.page-contact .channel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .channel-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lake-soft);
}

.page-contact .channel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.page-contact .channel-dot--lake {
  background: var(--lake);
  box-shadow: 0 0 0 4px rgba(55, 183, 179, 0.14);
}

.page-contact .channel-dot--amber {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(232, 162, 58, 0.14);
}

.page-contact .channel-dot--sand {
  background: var(--sand);
  box-shadow: 0 0 0 4px rgba(201, 185, 164, 0.14);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(0.98rem, 2.3vw, 1.16rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--contact-ink-soft);
}

.page-contact .channel-action {
  margin-top: auto;
  padding-top: 6px;
  width: max-content;
  max-width: 100%;
  font-size: 0.88rem;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 162, 58, 0.38);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact a.channel-action:hover {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}

.page-contact .channel-action--static {
  color: var(--mist);
  border-bottom-style: dashed;
  border-bottom-color: var(--line-sand);
}

/* ---------- 材料清单 ---------- */
.page-contact .contact-brief-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-contact .brief-list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .brief-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  background: rgba(216, 228, 234, 0.04);
  border-left: 2px solid var(--line-sand);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .brief-item:focus-within,
.page-contact .brief-item:hover {
  background: rgba(216, 228, 234, 0.07);
  border-left-color: var(--lake);
}

.page-contact .brief-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 4px;
}

.page-contact .brief-label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  cursor: pointer;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--pale);
}

.page-contact .brief-label strong {
  color: var(--paper);
  font-weight: 700;
  margin-right: 4px;
}

.page-contact .brief-check {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  border: 1px solid var(--line-lake);
  background: transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .brief-check:checked {
  background: var(--lake);
  border-color: var(--lake);
}

.page-contact .brief-check:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 7px;
  height: 11px;
  border-right: 2px solid var(--deep);
  border-bottom: 2px solid var(--deep);
  transform: rotate(40deg);
}

.page-contact .brief-check:focus-visible {
  outline: 2px solid var(--amber-soft);
  outline-offset: 3px;
}

.page-contact .brief-code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 1px 6px;
  border-radius: 2px;
  background: rgba(55, 183, 179, 0.14);
  color: var(--lake-soft);
}

.page-contact .contact-brief-media {
  margin: 0;
  border: 1px solid var(--line-sand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
  background: var(--deep);
}

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

/* ---------- 合作与更正 ---------- */
.page-contact .coop-grid {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .coop-card {
  padding: clamp(22px, 3vw, 32px);
  background: linear-gradient(150deg, rgba(201, 185, 164, 0.10), rgba(6, 16, 28, 0.34));
  border: 1px solid var(--line-sand);
  border-left: 3px solid var(--lake);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
}

.page-contact .coop-tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .coop-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(1.16rem, 2vw, 1.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--contact-ink-soft);
}

.page-contact .coop-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .coop-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--pale);
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--lake);
  transform: rotate(-18deg);
}

/* ---------- 回复节奏 ---------- */
.page-contact .hours-track {
  margin-top: clamp(22px, 3vw, 32px);
  padding: clamp(20px, 3vw, 32px);
  background: linear-gradient(118deg, rgba(55, 183, 179, 0.14), rgba(6, 16, 28, 0.42));
  border: 1px solid var(--line-lake);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-contact .hours-axis {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .hours-bar {
  position: relative;
  height: 6px;
  margin: 12px 0 14px;
  background: rgba(216, 228, 234, 0.10);
  overflow: hidden;
}

.page-contact .hours-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--lake), var(--lake-soft) 55%, var(--amber));
}

.page-contact .hours-note {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--contact-ink-soft);
}

/* ---------- 延伸入口 ---------- */
.page-contact .contact-more {
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-sand);
}

.page-contact .contact-more-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lake-soft);
}

.page-contact .contact-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .contact-links a {
  display: block;
  padding: 12px 0;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--pale);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 185, 164, 0.16);
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-contact .contact-links a:hover {
  color: var(--amber-soft);
  padding-left: 8px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .contact-brief-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-contact .contact-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
  }
}

@media (min-width: 960px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 18px;
  }

  .page-contact .channel-card--tel {
    margin-top: 30px;
  }

  .page-contact .channel-card--addr {
    margin-top: 60px;
  }

  .page-contact .contact-hero {
    padding-bottom: clamp(56px, 6vw, 88px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-action,
  .page-contact .brief-item,
  .page-contact .brief-check,
  .page-contact .contact-links a {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}