.page-contact {
  --pc-notch: 18px;
  --pc-gap: clamp(1rem, 2.4vw, 1.6rem);
  --pc-rule: 1px solid var(--c-line);
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(3rem, 7vw, 5rem);
  color: var(--c-ink);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(1.25rem, 3.5vw, 2.25rem);
}

.page-contact .section-lead {
  max-width: 64ch;
  margin: clamp(0.75rem, 1.8vw, 1.1rem) 0 0;
  color: var(--c-mist);
  font-size: 1rem;
  line-height: 1.75;
}

.page-contact h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  font-size: clamp(1.5rem, 3.6vw, 2rem);
}

.page-contact h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--c-ink);
}

.page-contact section + section {
  margin-top: clamp(2.5rem, 6vw, 4.25rem);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.25rem, 3.5vw, 2.5rem) 0 clamp(1.5rem, 3.5vw, 2.25rem);
  border-bottom: var(--pc-rule);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -14%;
  bottom: -45%;
  width: 58%;
  height: 150%;
  background: radial-gradient(circle at 65% 35%, rgba(52, 224, 208, 0.16), transparent 62%);
}

.page-contact .contact-hero__slant {
  position: absolute;
  z-index: -1;
  top: -12%;
  right: 9%;
  width: 1px;
  height: 130%;
  background: linear-gradient(180deg, transparent, var(--c-cyan) 45%, transparent);
  transform: rotate(25deg);
  transform-origin: top center;
  opacity: 0.45;
}

.page-contact .contact-hero h1 {
  margin: 0.4rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 0.95;
  font-size: clamp(2.6rem, 9vw, 5.4rem);
}

.page-contact .contact-hero__lead {
  max-width: 60ch;
  margin: clamp(1rem, 2.5vw, 1.5rem) 0 0;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.75;
  color: var(--c-ink);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.5rem;
  margin: clamp(1rem, 2.5vw, 1.6rem) 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  color: var(--c-mist);
}

.page-contact .contact-hero__facts .num {
  font-family: var(--font-mono);
  color: var(--c-cyan);
  font-size: 0.9375rem;
}

/* ---------- 联系通道 ---------- */
.page-contact .contact-channels {
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .channel-deck {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
  align-items: start;
}

.page-contact .channel-card {
  position: relative;
  padding: 1.35rem 1.3rem 1.55rem;
  background: var(--c-steel);
  border: var(--pc-rule);
  clip-path: polygon(
    0 0,
    calc(100% - var(--notch-lg)) 0,
    100% var(--notch-lg),
    100% 100%,
    0 100%
  );
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--c-cyan);
}

.page-contact .channel-card--amber::before {
  background: var(--c-amber);
}

.page-contact .channel-card--violet::before {
  background: var(--c-violet);
}

.page-contact .channel-card__id {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-contact .channel-card__value {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.6vw, 1.3rem);
  line-height: 1.4;
  color: var(--c-cyan);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-card--amber .channel-card__value {
  color: var(--c-amber);
}

.page-contact .channel-card--violet .channel-card__value {
  font-size: clamp(0.95rem, 2vw, 1.075rem);
  color: var(--c-violet-soft);
  line-height: 1.6;
}

.page-contact .channel-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 问题分流 ---------- */
.page-contact .route-grid {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

.page-contact .route-card {
  position: relative;
  padding: 1.2rem 1.2rem 1.35rem 1.5rem;
  background: var(--c-void-raise);
  border: var(--pc-rule);
  border-left: 3px solid var(--c-cyan);
}

.page-contact .route-card--amber {
  border-left-color: var(--c-amber);
}

.page-contact .route-card--violet {
  border-left-color: var(--c-violet);
}

.page-contact .route-card--green {
  border-left-color: var(--c-green);
}

.page-contact .route-card__no {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

.page-contact .route-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-ink);
}

.page-contact .route-card__link {
  display: inline-block;
  margin-top: 0.85rem;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 224, 208, 0.4);
}

.page-contact .route-card--amber .route-card__link {
  color: var(--c-amber);
  border-bottom-color: rgba(255, 162, 58, 0.45);
}

.page-contact .route-card--violet .route-card__link {
  color: var(--c-violet-soft);
  border-bottom-color: rgba(123, 91, 255, 0.5);
}

.page-contact .route-card--green .route-card__link {
  color: var(--c-green);
  border-bottom-color: rgba(91, 224, 160, 0.45);
}

.page-contact .route-card__link:hover,
.page-contact .route-card__link:focus-visible {
  border-bottom-color: currentColor;
}

/* ---------- 轮值时段 ---------- */
.page-contact .shift-layout {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: center;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

.page-contact .shift-copy p {
  margin: 0 0 0.85rem;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-contact .shift {
  margin-top: clamp(1rem, 2.5vw, 1.5rem);
}

.page-contact .shift__track {
  position: relative;
  height: 14px;
  background: var(--c-void-deep);
  border: var(--pc-rule);
}

.page-contact .shift__slot {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-amber));
}

.page-contact .shift__marks {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-mist);
}

.page-contact .shift__marks span:nth-child(1) {
  justify-self: start;
}

.page-contact .shift__marks span:nth-child(2),
.page-contact .shift__marks span:nth-child(3) {
  justify-self: center;
}

.page-contact .shift__marks span:nth-child(4) {
  justify-self: end;
}

.page-contact .shift__note {
  margin: 0.6rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--c-mist);
}

/* ---------- 核对准备 ---------- */
.page-contact .prep-layout {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

.page-contact .prep-list {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  padding: 0.75rem 0.9rem;
  background: var(--c-void-raise);
  border-left: 2px solid var(--c-line);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--c-ink);
}

.page-contact .prep-list__no {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-cyan);
  padding-top: 0.15rem;
}

.page-contact .prep-aside {
  padding: 1.15rem 1.2rem 1.3rem;
  background: rgba(255, 162, 58, 0.07);
  border: 1px solid rgba(255, 162, 58, 0.42);
  border-left: 3px solid var(--c-amber);
}

.page-contact .prep-aside__id {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-amber);
}

.page-contact .prep-aside p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-ink);
}

/* ---------- 备案与边界 ---------- */
.page-contact .compliance {
  margin-top: clamp(2.5rem, 6vw, 4.25rem);
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1.15rem, 3vw, 2rem);
  border: 1px solid rgba(255, 162, 58, 0.35);
}

.page-contact .compliance__list {
  display: grid;
  gap: 1rem;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
}

.page-contact .compliance__item {
  display: grid;
  gap: 0.35rem;
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--c-line);
}

.page-contact .compliance__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .compliance__item dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-mist);
}

.page-contact .compliance__item dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-contact .compliance__item dd .num {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--c-cyan);
  letter-spacing: 0.01em;
}

.page-contact .compliance__note {
  margin: clamp(1.25rem, 3vw, 1.6rem) 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .compliance__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0.75rem;
  margin-top: clamp(1rem, 2.5vw, 1.4rem);
}

/* ---------- 快捷操作与收尾 ---------- */
.page-contact .contact-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .media-frame {
  display: block;
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
}

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

.page-contact .shift-figure {
  margin: 0;
}

.page-contact .contact-outro {
  margin-top: clamp(2rem, 5vw, 3.25rem);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .route-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem 0.85rem;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-deck {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-bottom: 60px;
  }

  .page-contact .channel-card:nth-child(2) {
    margin-top: 28px;
  }

  .page-contact .channel-card:nth-child(3) {
    margin-top: 56px;
  }

  .page-contact .shift-layout {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .prep-layout {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .compliance__list {
    grid-template-columns: 1fr;
  }

  .page-contact .contact-outro {
    margin-top: clamp(2.5rem, 5vw, 3.75rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .reveal {
    transition: none;
  }
}