.page-contact {
  --pc-gap: clamp(16px, 2.6vw, 32px);
  --pc-pad: clamp(18px, 3vw, 30px);
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(16px, 2.4vw, 32px) clamp(16px, 3vw, 40px) clamp(48px, 6vw, 96px);
  background: var(--ink);
  color: var(--silver);
  font-family: var(--font-body);
}

.page-contact .breadcrumb {
  padding: 0 0 clamp(12px, 1.6vw, 20px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--mist);
}

.page-contact .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-contact .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .breadcrumb-list a:hover,
.page-contact .breadcrumb-list a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* 首屏观测窗 */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--orbit-deep);
  padding: clamp(28px, 5vw, 68px) clamp(20px, 4vw, 56px) clamp(26px, 4vw, 54px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 64px;
  border-top: 2px solid var(--orange);
  border-left: 2px solid var(--orange);
  z-index: 3;
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 64px;
  height: 64px;
  border-bottom: 2px solid var(--line);
  border-right: 2px solid var(--line);
  z-index: 3;
  pointer-events: none;
}

.page-contact .contact-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
  z-index: 0;
}

.page-contact .contact-hero-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(100deg, rgba(7, 12, 24, 0.96) 28%, rgba(7, 12, 24, 0.52) 78%, rgba(7, 12, 24, 0.86) 100%),
    repeating-linear-gradient(90deg, rgba(215, 222, 234, 0.05) 0 1px, transparent 1px 64px);
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--silver);
}

.page-contact .contact-lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 620px;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.85;
  color: var(--mist);
}

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

.page-contact .hero-chips .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  padding: 7px 12px;
  border: 1px solid var(--line);
  color: var(--mist);
  background: rgba(16, 26, 48, 0.72);
}

.page-contact .hero-chips .tag--cyan {
  color: var(--cyan);
  border-color: rgba(53, 224, 194, 0.42);
}

.page-contact .hero-chips .tag--signal {
  color: var(--signal);
  border-color: rgba(244, 201, 93, 0.38);
}

/* 主栅格 */
.page-contact .contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  margin-top: var(--pc-gap);
}

.page-contact .contact-aside,
.page-contact .contact-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-content: start;
  min-width: 0;
}

/* 侧栏卡片 */
.page-contact .channel-card,
.page-contact .hours-card,
.page-contact .consult-switch,
.page-contact .prep-section,
.page-contact .archive-strip {
  background: var(--orbit);
  border: 1px solid var(--line);
  padding: var(--pc-pad);
  min-width: 0;
}

.page-contact .channel-card {
  border-left: 3px solid var(--orange);
}

.page-contact .aside-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--silver);
}

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

.page-contact .channel-item {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .channel-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .channel-item:last-child {
  padding-bottom: 0;
}

.page-contact .channel-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel-value {
  font-size: 14px;
  line-height: 1.65;
  color: var(--silver);
  word-break: break-word;
}

.page-contact .channel-note {
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .num {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* 刻度式服务时间 */
.page-contact .hours-scale {
  position: relative;
  display: flex;
  justify-content: space-between;
  list-style: none;
  margin: 26px 0 16px;
  padding: 0;
}

.page-contact .hours-scale::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 5px;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), var(--cyan) 55%, var(--line) 100%);
  opacity: 0.9;
}

.page-contact .hours-stop {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 1 1 0;
  min-width: 0;
}

.page-contact .hours-stop:first-child {
  align-items: flex-start;
}

.page-contact .hours-stop:last-child {
  align-items: flex-end;
}

.page-contact .hours-tick {
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-contact .hours-stop:first-child .hours-tick {
  border-color: var(--orange);
  background: var(--orange);
}

.page-contact .hours-time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-contact .hours-stop:first-child .hours-time {
  color: var(--orange);
}

.page-contact .hours-note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 咨询类型切换 */
.page-contact .consult-switch .section-head {
  margin-bottom: 20px;
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.005em;
  color: var(--silver);
}

.page-contact .ctype-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
}

.page-contact .ctype-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ctype-tab {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  padding: 9px 13px;
  background: var(--orbit-soft);
  border: 1px solid var(--line);
  color: var(--mist);
  cursor: pointer;
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.page-contact .ctype-tab:hover {
  color: var(--silver);
  border-color: rgba(255, 106, 42, 0.55);
}

.page-contact #ctype-data:checked ~ .ctype-tabs label[for="ctype-data"],
.page-contact #ctype-coop:checked ~ .ctype-tabs label[for="ctype-coop"],
.page-contact #ctype-version:checked ~ .ctype-tabs label[for="ctype-version"],
.page-contact #ctype-fix:checked ~ .ctype-tabs label[for="ctype-fix"],
.page-contact #ctype-campus:checked ~ .ctype-tabs label[for="ctype-campus"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
  font-weight: 700;
}

.page-contact #ctype-data:focus-visible ~ .ctype-tabs label[for="ctype-data"],
.page-contact #ctype-coop:focus-visible ~ .ctype-tabs label[for="ctype-coop"],
.page-contact #ctype-version:focus-visible ~ .ctype-tabs label[for="ctype-version"],
.page-contact #ctype-fix:focus-visible ~ .ctype-tabs label[for="ctype-fix"],
.page-contact #ctype-campus:focus-visible ~ .ctype-tabs label[for="ctype-campus"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .ctype-panel {
  display: none;
  padding-top: 20px;
}

.page-contact #ctype-data:checked ~ .ctype-panels .ctype-panel[data-panel="data"],
.page-contact #ctype-coop:checked ~ .ctype-panels .ctype-panel[data-panel="coop"],
.page-contact #ctype-version:checked ~ .ctype-panels .ctype-panel[data-panel="version"],
.page-contact #ctype-fix:checked ~ .ctype-panels .ctype-panel[data-panel="fix"],
.page-contact #ctype-campus:checked ~ .ctype-panels .ctype-panel[data-panel="campus"] {
  display: block;
  animation: pc-fade 220ms ease-out both;
}

@keyframes pc-fade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-contact .ctype-panel-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

.page-contact .ctype-panel p {
  margin: 0;
  max-width: 680px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .ctype-points {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ctype-points li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ctype-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 2px;
  background: var(--orange);
}

.page-contact .consult-media {
  margin-top: 22px;
  border: 1px solid var(--line);
  overflow: hidden;
  line-height: 0;
}

.page-contact .consult-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
  object-fit: cover;
  filter: saturate(0.85);
}

/* 准备清单 */
.page-contact .prep-section .section-head {
  margin-bottom: 18px;
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .prep-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
  padding-top: 2px;
}

.page-contact .prep-body strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--silver);
  margin-bottom: 4px;
}

.page-contact .prep-body p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* 相关入口 */
.page-contact .contact-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 16px var(--pc-pad);
  background: var(--orbit-soft);
  border: 1px solid var(--line);
}

.page-contact .contact-links-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  margin-right: 4px;
}

.page-contact .contact-link {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  padding: 6px 11px;
  border: 1px solid var(--line);
  color: var(--silver);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.page-contact .contact-link:hover,
.page-contact .contact-link:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* 底部档案条 */
.page-contact .archive-strip {
  border-top: 2px solid var(--orange);
}

.page-contact .archive-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--silver);
}

.page-contact .archive-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  border-top: 1px solid var(--line-soft);
  padding-top: 18px;
}

.page-contact .archive-cell {
  min-width: 0;
}

.page-contact .archive-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 6px;
}

.page-contact .archive-value {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--silver);
  word-break: break-word;
}

.page-contact .archive-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 中等屏幕 */
@media (min-width: 720px) {
  .page-contact .archive-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 20px;
  }

  .page-contact .prep-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 0 18px;
  }
}

/* 桌面非对称双栏 */
@media (min-width: 960px) {
  .page-contact .contact-shell {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-aside {
    position: sticky;
    top: 20px;
  }

  .page-contact .consult-media img {
    max-height: 260px;
  }
}

@media (min-width: 1240px) {
  .page-contact .contact-shell {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ctype-panel,
  .page-contact .ctype-tab,
  .page-contact .contact-link {
    animation: none !important;
    transition: none !important;
  }
}