.page-contact {
  --contact-hair: rgba(41, 240, 224, .26);
  --contact-panel: rgba(11, 20, 38, .74);
  --contact-grid-line: rgba(29, 46, 77, .55);
  overflow-x: clip;
  background: var(--ink-950);
  color: var(--mist-100);
}

/* ===== 首屏 ===== */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + 28px) 0 clamp(44px, 6vw, 80px);
  background:
    radial-gradient(820px 380px at 86% -14%, rgba(41, 240, 224, .12), transparent 64%),
    radial-gradient(620px 320px at 6% 108%, rgba(255, 90, 46, .08), transparent 68%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, var(--contact-grid-line) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--contact-grid-line) 0 1px, transparent 1px 96px);
  opacity: .28;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 88%);
}

.page-contact .contact-hero > .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-contact .contact-hero__copy .eyebrow {
  margin-bottom: 14px;
}

.page-contact .contact-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.2vw, 68px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--white);
  margin: 0 0 20px;
  max-width: 15em;
}

.page-contact .contact-hero__copy .lede {
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.85;
  color: var(--ice-300);
  max-width: 34em;
  margin: 0 0 26px;
}

.page-contact .contact-hero__quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-contact .contact-hero__quick-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-500);
  width: 100%;
}

.page-contact .contact-hero__media {
  border-color: rgba(41, 240, 224, .18);
}

/* ===== 联系路径 + 步骤 双栏 ===== */
.page-contact .contact-channels {
  background: var(--ink-950);
}

.page-contact .contact-channels__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .contact-panel,
.page-contact .contact-steps {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(22px, 3.2vw, 40px);
  background:
    linear-gradient(180deg, rgba(19, 32, 57, .55), rgba(6, 11, 24, .2));
}

.page-contact .contact-panel__title,
.page-contact .contact-steps__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.1vw, 34px);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--white);
  margin: 10px 0 24px;
}

.page-contact .contact-mail {
  position: relative;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-sm);
  padding: clamp(18px, 2.6vw, 28px);
  background: rgba(41, 240, 224, .05);
}

.page-contact .contact-mail__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-contact .contact-mail__addr {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(15px, 4.4vw, 34px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--white);
  margin: 0 0 10px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .contact-mail__hint {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ice-300);
}

.page-contact .contact-lines {
  margin: 28px 0 0;
  display: grid;
  gap: 20px;
}

.page-contact .contact-line {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-line dt {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink-500);
  margin-bottom: 8px;
}

.page-contact .contact-line__value {
  display: block;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 700;
  color: var(--mist-100);
  margin-bottom: 8px;
  overflow-wrap: anywhere;
}

.page-contact .contact-line__note {
  display: block;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ice-300);
}

/* 步骤 */
.page-contact .contact-steps__lede {
  margin: 0 0 26px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ice-300);
}

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

.page-contact .steps__item {
  position: relative;
  padding: 0 0 26px 56px;
}

.page-contact .steps__item::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 34px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--contact-hair), rgba(29, 46, 77, .5));
}

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

.page-contact .steps__item:last-child::before {
  display: none;
}

.page-contact .steps__num {
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-pill);
  width: 40px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink-900);
}

.page-contact .steps__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.5;
  color: var(--white);
  margin: 0 0 8px;
}

.page-contact .steps__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ice-300);
}

.page-contact .contact-steps__foot {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ice-300);
}

.page-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 240, 224, .35);
}

.page-contact a:hover,
.page-contact a:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--white);
}

/* ===== 合作与内容协作 ===== */
.page-contact .contact-coop {
  background:
    linear-gradient(180deg, var(--ink-900), var(--ink-950)),
    radial-gradient(560px 260px at 92% 0%, rgba(79, 169, 122, .14), transparent 70%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-coop__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-contact .contact-coop__intro h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 42px);
  line-height: 1.18;
  letter-spacing: -.018em;
  color: var(--white);
  margin: 12px 0 18px;
}

.page-contact .contact-coop__text {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ice-300);
  margin: 0 0 16px;
  max-width: 36em;
}

.page-contact .contact-coop__intro .btn {
  margin-top: 8px;
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .coop-list__item {
  position: relative;
  border: 1px solid var(--line);
  border-left: 2px solid var(--green);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  background: var(--contact-panel);
}

.page-contact .coop-list__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
  display: block;
  margin-bottom: 8px;
}

.page-contact .coop-list__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--white);
  margin: 0 0 6px;
}

.page-contact .coop-list__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ice-300);
}

/* ===== 常见咨询类型 ===== */
.page-contact .contact-topics {
  background: var(--ink-950);
}

.page-contact .contact-topics h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 42px);
  line-height: 1.18;
  letter-spacing: -.018em;
  color: var(--white);
  margin: 12px 0 14px;
}

.page-contact .contact-topics__lede {
  margin: 0 0 26px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ice-300);
  max-width: 40em;
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.page-contact .filter-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ice-300);
  background: rgba(19, 32, 57, .7);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 9px 16px;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .filter-chip:hover {
  color: var(--white);
  border-color: var(--ink-500);
}

.page-contact .filter-chip[aria-pressed="true"] {
  color: var(--ink-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .topic-grid {
  display: grid;
  gap: var(--gap);
}

.page-contact .topic-card {
  background: linear-gradient(180deg, rgba(19, 32, 57, .8), rgba(11, 20, 38, .6));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(20px, 2.4vw, 28px);
}

.page-contact .topic-card .card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .topic-card .card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.45;
  color: var(--white);
  margin: 10px 0 12px;
}

.page-contact .topic-card__text {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ice-300);
}

.page-contact .topic-card__route {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-500);
}

.page-contact .topic-card[hidden] {
  display: none;
}

.page-contact .empty-state {
  margin-top: 22px;
  padding: 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ice-300);
}

/* ===== 办公地址与工作时间 ===== */
.page-contact .contact-visit {
  background: linear-gradient(180deg, var(--ink-900), var(--ink-950));
  border-top: 1px solid var(--line);
}

.page-contact .contact-visit__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .contact-visit__info h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -.018em;
  color: var(--white);
  margin: 12px 0 22px;
}

.page-contact .visit-list {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-contact .visit-list__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .visit-list__row dt {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink-500);
}

.page-contact .visit-list__row dd {
  margin: 0;
  font-size: clamp(15px, 1.8vw, 18px);
  font-weight: 600;
  line-height: 1.7;
  color: var(--mist-100);
  overflow-wrap: anywhere;
}

.page-contact .visit-list__row dd.data-num {
  font-family: var(--font-mono);
  color: var(--white);
}

.page-contact .contact-visit__note {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ice-300);
  max-width: 34em;
}

.page-contact .contact-visit__media {
  border-color: var(--line);
}

/* ===== 信息清单 ===== */
.page-contact .contact-checklist {
  background: var(--ink-950);
}

.page-contact .contact-checklist h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 42px);
  line-height: 1.18;
  letter-spacing: -.018em;
  color: var(--white);
  margin: 12px 0 14px;
}

.page-contact .contact-checklist__lede {
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ice-300);
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-top: 1px solid var(--line);
}

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

.page-contact .checklist__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 4px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-100);
  transition: color .2s var(--ease);
}

.page-contact .checklist__label:hover {
  color: var(--white);
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 4px 0 0;
  border: 1.5px solid var(--ink-500);
  border-radius: 4px;
  background: transparent;
  position: relative;
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .checklist__box:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 5px;
  height: 11px;
  border-right: 2px solid var(--ink-950);
  border-bottom: 2px solid var(--ink-950);
  transform: rotate(42deg);
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .checklist__label:has(.checklist__box:checked) span {
  color: var(--ice-300);
  text-decoration: line-through;
  text-decoration-color: rgba(159, 180, 208, .4);
}

.page-contact .contact-checklist__cta {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  padding: 22px clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius);
  background: rgba(41, 240, 224, .05);
}

.page-contact .contact-checklist__cta-text {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ice-300);
}

/* ===== 地形收边 ===== */
.page-contact .contact-ridge {
  color: var(--green);
  border-top: 1px solid var(--line);
  padding: 22px 0 8px;
  opacity: .62;
}

.page-contact .contact-ridge svg {
  display: block;
  width: 100%;
  height: clamp(48px, 6vw, 84px);
}

/* ===== 断点 ===== */
@media (min-width: 700px) {
  .page-contact .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .visit-list__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }

  .page-contact .contact-coop__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .filter-chip,
  .page-contact .checklist__label,
  .page-contact .checklist__box {
    transition: none;
  }
}
<<<END>>>