.page-contact {
  --pc-gap: clamp(16px, 2.4vw, 24px);
  --pc-pad: clamp(20px, 3vw, 34px);
  color: var(--text);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-top {
  position: relative;
  overflow: hidden;
  padding-top: clamp(24px, 4vw, 48px);
}

.page-contact .contact-top::before {
  content: "";
  position: absolute;
  inset-inline-end: -12%;
  top: -140px;
  width: 56vw;
  max-width: 680px;
  height: 340px;
  background: linear-gradient(120deg, rgba(255, 159, 28, .2), rgba(255, 159, 28, 0) 72%);
  transform: skewY(var(--skew));
  pointer-events: none;
}

.page-contact .contact-top::after {
  content: "";
  position: absolute;
  inset-inline-start: -6%;
  bottom: -80px;
  width: 34vw;
  max-width: 420px;
  height: 180px;
  background: linear-gradient(300deg, rgba(47, 211, 224, .16), rgba(47, 211, 224, 0) 74%);
  transform: skewY(var(--skew));
  pointer-events: none;
}

.page-contact .contact-top__head {
  position: relative;
  z-index: 1;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .contact-top__head h1 {
  margin: .16em 0 .3em;
  font-size: clamp(2.1rem, 7vw, 3.9rem);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -.02em;
  transform: skewX(var(--skew));
  transform-origin: left bottom;
}

.page-contact .contact-top__lede {
  max-width: 40em;
  margin: 0;
  font-size: clamp(1rem, 2.1vw, 1.06rem);
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 渠道卡 ---------- */

.page-contact .channel-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(26px, 4vw, 46px);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: var(--pc-pad);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(237, 240, 244, .06);
  transition: border-color .24s var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--amber);
}

.page-contact .channel-card--mail {
  border-radius: var(--radius);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
  background:
    linear-gradient(150deg, rgba(255, 159, 28, .1), rgba(255, 159, 28, 0) 58%),
    var(--panel);
}

.page-contact .channel-card--phone {
  border-radius: var(--radius);
  border-inline-start: 3px solid var(--cyan);
}

.page-contact .channel-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .channel-head .status-dot {
  margin-inline-start: auto;
}

.page-contact .channel-kind {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .channel-addr {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 4.6vw, 2.05rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--amber);
  word-break: break-all;
}

.page-contact .channel-addr--sm {
  font-size: clamp(1.4rem, 5.6vw, 2.2rem);
  color: var(--cyan);
}

.page-contact .channel-fit {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

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

.page-contact .channel-tags li {
  position: relative;
  padding-inline-start: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .channel-tags li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: .68em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
  transform: skewX(-28deg);
}

.page-contact .channel-cta {
  margin-top: auto;
  align-self: flex-start;
}

.page-contact .channel-meta {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel-meta div {
  display: grid;
  gap: 3px;
}

.page-contact .channel-meta dt {
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .channel-meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text);
}

/* ---------- 写信准备 ---------- */

.page-contact .prep {
  border-top: 1px solid var(--line);
}

.page-contact .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 42px);
}

.page-contact .prep-main h2,
.page-contact .routes h2,
.page-contact .followup h2,
.page-contact .place h2 {
  margin: .2em 0 .42em;
  font-size: clamp(1.5rem, 4.4vw, 2.1rem);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -.015em;
}

.page-contact .prep-lede,
.page-contact .routes-lede {
  max-width: 40em;
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-contact .prep-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color .22s var(--ease);
}

.page-contact .prep-item:hover {
  border-color: var(--amber);
}

.page-contact .prep-num {
  font-size: 12px;
  line-height: 1.9;
  color: var(--cyan);
  letter-spacing: .06em;
}

.page-contact .prep-body h3 {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-contact .prep-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .prep-tick {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.page-contact .prep-tick::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 5px;
  width: 7px;
  height: 3px;
  border-inline-start: 2px solid var(--lime);
  border-bottom: 2px solid var(--lime);
  transform: rotate(-45deg);
}

.page-contact .prep-media {
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .template-card {
  margin-top: var(--pc-gap);
  padding: 18px;
  background:
    linear-gradient(160deg, rgba(255, 159, 28, .14), rgba(255, 159, 28, 0) 62%),
    var(--wine);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .template-label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--amber-soft);
}

.page-contact .template-body {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------- 问题类型切换 ---------- */

.page-contact .routes {
  border-top: 1px solid var(--line);
}

.page-contact .tab-list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-contact .tab-btn {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-family: inherit;
  font-size: 14.5px;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .tab-btn:hover {
  color: var(--text);
  border-color: var(--amber);
}

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

.page-contact .tab-btn[aria-selected="true"] {
  color: var(--ink);
  font-weight: 700;
  border-color: transparent;
  background: linear-gradient(135deg, var(--amber), var(--amber-deep));
}

.page-contact .tab-panel {
  margin-top: 14px;
  padding: clamp(18px, 3vw, 28px);
  background:
    linear-gradient(140deg, rgba(47, 211, 224, .12), rgba(47, 211, 224, 0) 66%),
    var(--teal);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .tab-panel[hidden] {
  display: none;
}

.page-contact .route-title {
  margin: 0 0 12px;
  font-size: clamp(1.15rem, 3.2vw, 1.4rem);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .route-line {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .route-key {
  display: inline-block;
  margin-inline-end: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  color: var(--cyan);
  vertical-align: 1px;
}

.page-contact .route-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 4px;
  color: var(--amber);
  font-size: 14.5px;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 159, 28, .42);
  transition: border-color .2s var(--ease);
}

.page-contact .route-link:hover,
.page-contact .route-link:focus-visible {
  border-bottom-color: var(--amber);
}

/* ---------- 回信时段 ---------- */

.page-contact .followup {
  border-top: 1px solid var(--line);
}

.page-contact .followup-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
}

.page-contact .followup-lead p {
  max-width: 38em;
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .followup-lead a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 159, 28, .42);
}

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

.page-contact .followup-steps li {
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-inline-start: 3px solid var(--amber);
  border-radius: var(--radius-sm);
}

.page-contact .step-num {
  display: block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-contact .followup-steps h3 {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-contact .followup-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 联系地址 ---------- */

.page-contact .place {
  border-top: 1px solid var(--line);
}

.page-contact .place-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  align-items: center;
}

.page-contact .place-card {
  position: relative;
  padding: clamp(22px, 3vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(90deg, transparent 0 40px, rgba(47, 211, 224, .08) 40px 41px),
    repeating-linear-gradient(0deg, transparent 0 40px, rgba(47, 211, 224, .08) 40px 41px),
    var(--indigo);
  overflow: hidden;
}

.page-contact .place-addr {
  margin: 0 0 20px;
  font-size: clamp(1.05rem, 2.8vw, 1.24rem);
  line-height: 1.72;
  font-weight: 600;
  color: var(--text);
}

.page-contact .place-meta {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-contact .place-meta div {
  display: grid;
  gap: 3px;
  padding-top: 12px;
  border-top: 1px solid rgba(37, 48, 59, .9);
}

.page-contact .place-meta dt {
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .place-meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--text);
  word-break: break-word;
}

.page-contact .place-media {
  border-radius: var(--radius);
  overflow: hidden;
}

/* ---------- 备案条 ---------- */

.page-contact .legal-strip {
  margin-top: clamp(30px, 5vw, 68px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .legal-strip__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  padding-block: 14px;
  font-size: 11.5px;
  letter-spacing: .05em;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-contact .prep-item {
    padding: 16px 20px;
    gap: 16px;
  }

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

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.55fr 1fr;
    align-items: stretch;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .92fr);
    align-items: start;
  }

  .page-contact .followup-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-contact .place-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  }

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

  .page-contact .place-meta div:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1180px) {
  .page-contact .channel-card--mail .channel-addr {
    font-size: clamp(1.9rem, 2.4vw, 2.35rem);
  }
}
<<<END>>>