.page-contact {
  --pc-rule: 1px solid var(--line);
  position: relative;
}

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--head-h) + clamp(24px, 5vw, 56px)) 0 clamp(40px, 6vw, 84px);
  background: linear-gradient(158deg, var(--ink-900) 0%, var(--ink-800) 48%, var(--ink-700) 100%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: min(760px, 80%);
  height: 120%;
  background: linear-gradient(150deg, rgba(255, 92, 26, .3) 0%, rgba(255, 92, 26, .06) 46%, rgba(255, 92, 26, 0) 72%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 74%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--flame) 24%, var(--sand) 60%, var(--blue) 100%);
  opacity: .55;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 60px);
  align-items: end;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-contact .breadcrumb li {
  display: flex;
  align-items: center;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin: 0 10px;
  color: rgba(157, 179, 170, .45);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--sand);
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(38px, 8.4vw, 86px);
  line-height: .96;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  max-width: 32em;
  margin: 0;
  font-size: clamp(15.5px, 1.7vw, 18px);
  line-height: 1.85;
  color: rgba(244, 247, 245, .82);
}

.page-contact .contact-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-index a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(18, 60, 48, .45);
  backdrop-filter: blur(10px);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--white);
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), background-color .2s var(--ease);
}

.page-contact .contact-index a::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--flame);
  transform: rotate(45deg);
}

.page-contact .contact-index a:hover {
  border-color: var(--flame);
  color: var(--sand);
  background: rgba(255, 92, 26, .14);
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  max-width: 520px;
  border-top: 3px solid var(--flame);
  box-shadow: 0 30px 70px rgba(5, 19, 15, .55);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============ 正文双栏 ============ */
.page-contact .contact-body {
  padding: clamp(48px, 8vw, 112px) 0 clamp(48px, 8vw, 104px);
  background: var(--ink-800);
}

.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(36px, 6vw, 80px);
}

.page-contact .contact-anchor__title {
  margin: 0 0 18px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--flame);
}

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

.page-contact .contact-line {
  padding: 20px 0;
  border-top: var(--pc-rule);
}

.page-contact .contact-line:last-child {
  border-bottom: var(--pc-rule);
}

.page-contact .contact-line__kind {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-contact .contact-line__value {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.5;
  font-style: normal;
  font-variant-numeric: tabular-nums;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact a.contact-line__value {
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 3px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact a.contact-line__value:hover {
  color: var(--sand);
  border-bottom-color: var(--sand);
}

.page-contact .contact-line__cue {
  display: block;
  max-width: 30ch;
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  transition: color .2s var(--ease);
}

.page-contact .contact-line:hover .contact-line__cue {
  color: rgba(244, 247, 245, .88);
}

.page-contact .contact-anchor__foot {
  max-width: 32em;
  margin: 26px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-anchor__foot a {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 178, 95, .42);
  transition: border-color .2s var(--ease);
}

.page-contact .contact-anchor__foot a:hover {
  border-bottom-color: var(--sand);
}

/* ============ 主题指引 ============ */
.page-contact .contact-topics {
  display: grid;
  gap: clamp(34px, 5vw, 58px);
}

.page-contact .topic-block {
  padding-top: clamp(26px, 3.4vw, 40px);
  border-top: var(--pc-rule);
}

.page-contact .topic-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .topic-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-contact .topic-block__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
  color: var(--flame);
}

.page-contact .topic-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(21px, 2.9vw, 30px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .topic-block__body > p {
  max-width: 40em;
  margin: 0 0 1.1em;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.88;
  color: rgba(244, 247, 245, .8);
}

.page-contact .topic-block__body > p.topic-block__aside {
  margin-top: 1.4em;
  font-size: 14px;
  color: var(--mist);
}

.page-contact .topic-block__aside a {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 178, 95, .42);
  transition: border-color .2s var(--ease);
}

.page-contact .topic-block__aside a:hover {
  border-bottom-color: var(--sand);
}

.page-contact .field-list {
  display: grid;
  gap: 10px;
  max-width: 42em;
  margin: 18px 0 1.4em;
  padding: 0;
  list-style: none;
}

.page-contact .field-list li {
  position: relative;
  padding-left: 26px;
  font-size: clamp(14.5px, 1.55vw, 16px);
  line-height: 1.8;
  color: rgba(244, 247, 245, .86);
}

.page-contact .field-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 12px;
  height: 2px;
  background: var(--flame);
}

.page-contact .field-list strong {
  font-weight: 700;
  color: var(--white);
}

.page-contact .topic-block__media {
  margin: clamp(20px, 3vw, 30px) 0;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--ink-700), var(--ink-900));
}

.page-contact .topic-block__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ============ 页尾色带 ============ */
.page-contact .contact-tail {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 7vw, 84px) 0;
  background: linear-gradient(104deg, var(--ink-700) 0%, var(--ink-600) 32%, var(--flame-deep) 100%);
}

.page-contact .contact-tail::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 19, 15, .24), rgba(5, 19, 15, 0));
  pointer-events: none;
}

.page-contact .contact-tail__inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 26px 40px;
}

.page-contact .contact-tail__copy {
  max-width: 44ch;
}

.page-contact .contact-tail__copy h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.2;
  color: var(--white);
}

.page-contact .contact-tail__copy p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 247, 245, .88);
}

.page-contact .contact-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============ 页脚上方细则条 ============ */
.page-contact .contact-fine {
  background: var(--ink-900);
  padding: 22px 0;
}

.page-contact .contact-fine__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 28px;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--mist);
}

.page-contact .contact-fine a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .contact-fine a:hover {
  color: var(--sand);
  border-bottom-color: var(--sand);
}

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-contact .contact-hero__media {
    aspect-ratio: 4 / 5;
    max-width: none;
    border-top: 0;
    border-left: 3px solid var(--flame);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, .78fr);
  }
}

@media (min-width: 980px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2.6fr);
    gap: clamp(48px, 5vw, 88px);
    align-items: start;
  }

  .page-contact .contact-anchor {
    position: sticky;
    top: calc(var(--head-h) + 32px);
    align-self: start;
  }
}

@media (min-width: 1280px) {
  .page-contact .contact-hero::before {
    width: min(880px, 66%);
  }
}
<<<END>>>