.page-contact {
  --cc-cut: 20px;
  --cc-pad: clamp(1.25rem, 3vw, 1.875rem);
  color: var(--ink);
}

.page-contact .breadcrumbs {
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-contact .contact-hero h1 {
  margin: 0 0 1.5rem;
  max-width: 20em;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.875rem, 6.2vw, 3.4rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .contact-hero__lede {
  margin: 0 0 2rem;
  font-size: clamp(1rem, 2.4vw, 1.125rem);
  line-height: 1.95;
  color: var(--ink);
  opacity: 0.86;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 通用小节标题 ---------- */

.page-contact .section-head {
  max-width: 44em;
  margin-bottom: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-contact .section-head h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.4375rem, 3.8vw, 2.125rem);
  line-height: 1.35;
  letter-spacing: 0.01em;
}

.page-contact .section-head p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.95;
  color: var(--muted);
}

/* ---------- 三条渠道 ---------- */

.page-contact .channels__figure {
  margin: 0 0 clamp(1.75rem, 4vw, 3rem);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.125rem;
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: calc(var(--cc-pad) + 0.75rem) var(--cc-pad) var(--cc-pad);
  background: linear-gradient(180deg, var(--indigo-700) 0%, var(--indigo-850) 100%);
  clip-path: polygon(
    0 var(--cc-cut),
    var(--cc-cut) 0,
    100% 0,
    100% calc(100% - var(--cc-cut)),
    calc(100% - var(--cc-cut)) 100%,
    0 100%
  );
  transition: transform 0.32s var(--ease), background 0.32s var(--ease);
}

.page-contact .channel:hover {
  transform: translateY(-4px);
  background: linear-gradient(180deg, #21345A 0%, var(--indigo-850) 100%);
}

.page-contact .channel__line {
  position: absolute;
  top: 0;
  left: var(--cc-cut);
  right: 0;
  height: 2px;
  background: var(--teal);
}

.page-contact .channel--mail .channel__line {
  background: var(--gold);
}

.page-contact .channel--phone .channel__line {
  background: var(--coral);
}

.page-contact .channel__index {
  display: block;
  margin-bottom: 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.page-contact .channel__title {
  margin: 0 0 1rem;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.page-contact .channel__value {
  margin: 0 0 1.125rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(0.9375rem, 2.6vw, 1.0625rem);
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--gold-soft);
  overflow-wrap: anywhere;
}

.page-contact .channel__value--plain {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.85;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .channel__scene {
  margin: 0;
  margin-top: auto;
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--muted);
  transition: color 0.28s var(--ease);
}

.page-contact .channel:hover .channel__scene,
.page-contact .channel:focus-within .channel__scene {
  color: var(--ink);
}

/* ---------- 归属地 ---------- */

.page-contact .locale__figure {
  margin: 0 0 clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .locale__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  align-items: start;
}

.page-contact .locale__text h2 {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.375rem, 3.4vw, 1.875rem);
  line-height: 1.4;
}

.page-contact .locale__text p {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.95;
  color: var(--ink);
  opacity: 0.86;
}

.page-contact .locale__text p:last-child {
  margin-bottom: 0;
}

.page-contact .locale__mark-wrap {
  display: flex;
  justify-content: flex-start;
}

.page-contact .locale__mark {
  width: min(220px, 60%);
  height: auto;
}

.page-contact .locale__ridge {
  stroke: var(--teal);
}

.page-contact .locale__water {
  stroke: var(--gold);
}

/* ---------- 先自助 ---------- */

.page-contact .selfhelp__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.125rem;
}

.page-contact .selfhelp__card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(1.25rem, 3vw, 1.875rem);
}

.page-contact .selfhelp__index {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  color: var(--coral);
}

.page-contact .selfhelp__card h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.page-contact .selfhelp__card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .selfhelp__card .link {
  margin-top: 0.25rem;
  align-self: flex-start;
}

/* ---------- 邮件怎么写 ---------- */

.page-contact .mail-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 52em;
}

.page-contact .mail-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .mail-steps__item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .mail-steps__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-top: 0.25rem;
}

.page-contact .mail-steps__item p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.95;
}

/* ---------- 响应节奏 ---------- */

.page-contact .rhythm__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-contact .rhythm__step {
  position: relative;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.page-contact .rhythm__step::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
}

.page-contact .rhythm__step--last::before {
  background: var(--gold);
}

.page-contact .rhythm__label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.page-contact .rhythm__meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .rhythm__note {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  max-width: 42em;
  font-size: 0.9375rem;
  line-height: 1.95;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .locale__body {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-contact .locale__mark-wrap {
    justify-content: flex-end;
  }

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

  .page-contact .rhythm__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }
}
<<<END>>>