.page-contact {
  --ct-rail: 328px;
  --ct-gap: clamp(28px, 4vw, 64px);
  --ct-mist-deep: #D2E4D9;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(40px, 8vw, 88px)) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: 72px 100%;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent 88%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gut);
  padding-right: var(--gut);
}

.page-contact .contact-hero__inner::before {
  content: "";
  position: absolute;
  left: var(--gut);
  top: calc(-1 * clamp(14px, 3vw, 26px));
  width: clamp(56px, 12vw, 148px);
  height: 2px;
  background: var(--autumn);
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-contact .contact-hero .eyebrow {
  margin: 0 0 10px;
  color: var(--gray);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-hero__lead {
  max-width: 36em;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.8;
  color: var(--winter);
}

/* ---------- 主体分栏 ---------- */
.page-contact .contact-body {
  padding-top: clamp(32px, 5vw, 64px);
  padding-bottom: clamp(8px, 2vw, 24px);
}

.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
}

/* ---------- 左栏渠道 ---------- */
.page-contact .contact-rail .eyebrow {
  margin: 0 0 6px;
  color: var(--summer-deep);
}

.page-contact .contact-rail__title {
  margin: 0 0 clamp(18px, 3vw, 26px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 2.8vw, 1.65rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel {
  display: grid;
  grid-template-columns: 5px minmax(0, 1fr);
  background: var(--mist);
  transition: background-color 0.2s var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  background: var(--ct-mist-deep);
}

.page-contact .channel__bar {
  display: block;
  width: 5px;
  background: var(--spring);
  transition: transform 0.2s var(--ease);
  transform-origin: top center;
}

.page-contact .channel--summer .channel__bar {
  background: var(--summer);
}

.page-contact .channel--autumn .channel__bar {
  background: var(--autumn);
}

.page-contact .channel:hover .channel__bar {
  transform: scaleY(1.06);
}

.page-contact .channel__body {
  padding: 16px 18px 18px;
  min-width: 0;
}

.page-contact .channel__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(13px, 2vw, 15px);
  letter-spacing: 0.02em;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .channel__value--addr {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.65;
  letter-spacing: 0;
}

.page-contact .channel__note {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--winter);
}

.page-contact .rail-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 右栏长文 ---------- */
.page-contact .contact-main {
  min-width: 0;
}

.page-contact .contact-figure {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0;
}

.page-contact .contact-figure--visit {
  margin-top: clamp(24px, 4vw, 36px);
  margin-bottom: 0;
}

.page-contact .contact-figure .figure__cap {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--gray);
}

.page-contact .contact-block {
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-block + .contact-block {
  margin-top: clamp(36px, 5vw, 64px);
}

.page-contact .contact-block .eyebrow {
  margin: 0 0 10px;
  color: var(--autumn);
  letter-spacing: 0.1em;
}

.page-contact .contact-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4vw, 2.15rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .contact-block__lead {
  max-width: 34em;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--winter);
}

.page-contact .contact-block__tail {
  max-width: 36em;
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--gray);
}

.page-contact .contact-block__tail a {
  color: var(--summer-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-block__tail a:hover {
  color: var(--ink);
}

/* ---------- 邮件四项 ---------- */
.page-contact .mail-list {
  list-style: none;
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding: 0;
}

.page-contact .mail-item {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0 12px;
  padding: clamp(16px, 2.4vw, 22px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .mail-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .mail-item__num {
  font-size: 12px;
  color: var(--autumn);
  padding-top: 4px;
}

.page-contact .mail-item__body {
  min-width: 0;
}

.page-contact .mail-item__key {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 8px;
  border: 1px solid var(--line-gold);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.page-contact .mail-item__title {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .mail-item__text {
  margin: 0;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--winter);
}

/* ---------- 来访 ---------- */
.page-contact .visit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .visit-address {
  background: var(--mist);
  padding: clamp(18px, 3vw, 26px);
}

.page-contact .visit-address__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gray);
}

.page-contact .visit-address__text {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .visit-steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .visit-steps li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--winter);
}

.page-contact .visit-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--autumn);
}

.page-contact .map-sketch {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 180px;
  border: 1px solid var(--line-strong);
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 26px 26px;
  overflow: hidden;
}

.page-contact .map-sketch__road {
  position: absolute;
  background: rgba(58, 74, 90, 0.12);
}

.page-contact .map-sketch__road--h {
  left: 0;
  right: 0;
  top: 62%;
  height: 14px;
}

.page-contact .map-sketch__road--v {
  top: 0;
  bottom: 0;
  left: 28%;
  width: 10px;
}

.page-contact .map-sketch__pin {
  position: absolute;
  left: 52%;
  top: 34%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--autumn);
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-contact .map-sketch__pin::after {
  content: "";
  position: absolute;
  inset: -8px;
  border: 1px solid var(--line-strong);
}

.page-contact .map-sketch__cap {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--winter);
}

/* ---------- 合作展开组 ---------- */
.page-contact .accordion {
  margin-top: clamp(24px, 3.5vw, 36px);
  border-top: 1px solid var(--line-strong);
}

.page-contact .partner-list-title {
  margin: 14px 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--summer-deep);
}

.page-contact .partner-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--winter);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 6px;
  height: 1px;
  background: var(--line-strong);
}

.page-contact .accordion__body p {
  max-width: 34em;
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--winter);
}

/* ---------- 响应时间 ---------- */
.page-contact .reply-list {
  list-style: none;
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .reply-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 18px;
  background: var(--paper);
}

.page-contact .reply-item__when {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--summer-deep);
}

.page-contact .reply-item__what {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--winter);
}

/* ---------- 深色联系条 ---------- */
.page-contact .contact-band {
  margin-top: clamp(48px, 7vw, 96px);
  padding: clamp(40px, 6vw, 76px) 0;
  background: var(--night);
  color: var(--paper);
}

.page-contact .contact-band__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--gut);
  padding-right: var(--gut);
}

.page-contact .contact-band__eyebrow {
  margin: 0 0 12px;
  color: var(--autumn);
  letter-spacing: 0.12em;
}

.page-contact .contact-band__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.2vw, 2.4rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .contact-band__lead {
  max-width: 32em;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.78);
}

.page-contact .contact-band__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-top: clamp(28px, 4vw, 40px);
  border-top: 1px solid var(--line-light);
}

.page-contact .contact-band__col {
  padding: 16px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-contact .contact-band__label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--autumn);
}

.page-contact .contact-band__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(14px, 2.4vw, 18px);
  letter-spacing: 0.02em;
  line-height: 1.55;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-band__value--sm {
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0;
}

.page-contact .contact-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.5vw, 34px);
}

.page-contact .contact-band__link {
  color: var(--paper);
  border-color: var(--line-light);
}

.page-contact .contact-band__link:hover {
  border-color: var(--autumn);
  color: var(--autumn);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-contact .reply-item {
    grid-template-columns: minmax(150px, 0.4fr) minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
    padding: 18px 22px;
  }

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

  .page-contact .contact-band__col {
    padding: 18px 20px 18px 0;
    border-bottom: 0;
    border-right: 1px solid var(--line-light);
  }

  .page-contact .contact-band__col:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: stretch;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-split {
    grid-template-columns: var(--ct-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    max-height: calc(100vh - var(--header-h) - 48px);
    overflow-y: auto;
    padding-bottom: 4px;
  }

  .page-contact .contact-block {
    padding-top: clamp(32px, 3.5vw, 48px);
  }

  .page-contact .mail-item {
    grid-template-columns: 2.6rem minmax(0, 1fr);
    gap: 0 18px;
  }

  .page-contact .contact-band__col {
    padding-right: 28px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-split {
    gap: clamp(56px, 5vw, 88px);
  }

  .page-contact .contact-rail__title {
    font-size: 1.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel__bar {
    transition: none;
  }
}
<<<END>>>