.page-contact {
  --c-gap: clamp(20px, 3vw, 44px);
  --c-pad: clamp(18px, 2vw, 26px);
  color: var(--paper);
  padding-bottom: clamp(48px, 7vw, 100px);
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(20px, 3vw, 36px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ice);
}
.page-contact .breadcrumb__link {
  color: var(--ice);
  text-decoration: none;
  transition: color .18s var(--ease);
}
.page-contact .breadcrumb__link:hover { color: var(--cyan); }
.page-contact .breadcrumb__sep { color: var(--line-strong); }
.page-contact .breadcrumb__current { color: var(--paper); }

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--c-gap);
  padding: clamp(24px, 4vw, 52px) 0 clamp(32px, 4.5vw, 64px);
  border-bottom: 1px solid var(--line);
}
.page-contact .contact-hero__text { min-width: 0; }
.page-contact .contact-hero__title {
  margin: 14px 0 18px;
  font-size: clamp(30px, 5.2vw, 60px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.page-contact .contact-hero__lead {
  max-width: 34em;
  color: var(--ice);
}
.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-contact .figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--teal), var(--ink-2));
}
.page-contact .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-contact .contact-hero__figure {
  aspect-ratio: 16 / 9;
  width: 100%;
}

/* ---------- 左右分屏 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--c-gap);
  align-items: start;
  padding-top: clamp(32px, 4.5vw, 64px);
}
.page-contact .contact-split > * { min-width: 0; }

.page-contact .channel-track {
  display: grid;
  gap: 14px;
}
.page-contact .channel-track__head { margin-bottom: 4px; }
.page-contact .channel-track__title {
  margin: 8px 0 0;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 800;
  line-height: 1.25;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: calc(var(--c-pad) + 8px) var(--c-pad) var(--c-pad);
  overflow: hidden;
}
.page-contact .channel-card__bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--blue);
}
.page-contact .channel-card__bar--cyan { background: var(--cyan); }
.page-contact .channel-card__bar--orange { background: var(--orange); }
.page-contact .channel-card__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
}
.page-contact .channel-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ice);
}
.page-contact .channel-card__value {
  margin: 0;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  color: var(--cyan);
  background: var(--teal);
  border-left: 2px solid var(--cyan);
  word-break: break-all;
}
.page-contact .channel-card__value--phone {
  font-size: 17px;
  letter-spacing: .04em;
  word-break: normal;
}
.page-contact .channel-card .copy-btn,
.page-contact .channel-card .btn {
  align-self: flex-start;
  margin-top: auto;
}

.page-contact .contact-main {
  display: grid;
  gap: clamp(30px, 4vw, 60px);
  min-width: 0;
}
.page-contact .contact-block {
  border-top: 1px solid var(--line);
  padding-top: clamp(26px, 3.4vw, 44px);
}
.page-contact .contact-main > .contact-block:first-child {
  border-top: 0;
  padding-top: 0;
}

/* ---------- 反馈表单 ---------- */
.page-contact .feedback {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(20px, 2.6vw, 34px);
}
.page-contact .feedback > * { min-width: 0; }
.page-contact .feedback__form { min-width: 0; }

.page-contact .field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px 22px;
}
.page-contact .field { min-width: 0; }
.page-contact .field--full { grid-column: 1 / -1; }
.page-contact .field label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--ice);
}
.page-contact .field input,
.page-contact .field textarea,
.page-contact .field select {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 2px;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.page-contact .field select {
  background-color: var(--ink-2);
  border: 1px solid var(--line);
  padding: 10px;
}
.page-contact .field textarea {
  min-height: 128px;
  resize: vertical;
}
.page-contact .field input::placeholder,
.page-contact .field textarea::placeholder { color: var(--ice); }
.page-contact .field input:focus,
.page-contact .field textarea:focus,
.page-contact .field select:focus {
  outline: none;
  border-color: var(--blue);
  border-bottom-color: var(--blue);
  box-shadow: 0 3px 0 -1px var(--blue-soft);
}

.page-contact .feedback__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 28px;
}
.page-contact .feedback__hint {
  margin: 0;
  font-size: 13.5px;
  color: var(--ice);
}

.page-contact .tips {
  display: grid;
  gap: 16px;
  align-content: start;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .tips__item {
  padding: 2px 0 2px 14px;
  border-left: 2px solid var(--line-strong);
}
.page-contact .tips__num {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}
.page-contact .tips__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ice);
}
.page-contact .tips__text strong {
  color: var(--paper);
  font-weight: 700;
}

/* ---------- 合作方向切换 ---------- */
.page-contact .tabs {
  position: relative;
  margin-top: clamp(20px, 2.6vw, 34px);
}
.page-contact .tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}
.page-contact .tabs__label {
  cursor: pointer;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 15px;
  color: var(--ice);
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.page-contact .tabs__label:hover {
  border-color: var(--line-strong);
  color: var(--paper);
}
.page-contact #coop-media:checked ~ .tabs__bar .tabs__label--media,
.page-contact #coop-data:checked ~ .tabs__bar .tabs__label--data,
.page-contact #coop-brand:checked ~ .tabs__bar .tabs__label--brand {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--paper);
}
.page-contact #coop-media:focus-visible ~ .tabs__bar .tabs__label--media,
.page-contact #coop-data:focus-visible ~ .tabs__bar .tabs__label--data,
.page-contact #coop-brand:focus-visible ~ .tabs__bar .tabs__label--brand {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-contact .tabs__panel {
  display: none;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
}
.page-contact #coop-media:checked ~ .tabs__panels .tabs__panel--media,
.page-contact #coop-data:checked ~ .tabs__panels .tabs__panel--data,
.page-contact #coop-brand:checked ~ .tabs__panels .tabs__panel--brand {
  display: block;
}
.page-contact .tabs__panel-title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
}
.page-contact .tabs__panel p {
  max-width: 46em;
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ice);
}
.page-contact .tabs__panel p:last-child { margin-bottom: 0; }
.page-contact .tabs__panel-meta {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 响应说明 ---------- */
.page-contact .response {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
  margin-top: clamp(20px, 2.6vw, 34px);
}
.page-contact .response__body { min-width: 0; }
.page-contact .response__body p {
  max-width: 40em;
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ice);
}
.page-contact .response__body p:last-of-type { margin-bottom: 20px; }
.page-contact .response__figure {
  aspect-ratio: 1 / 1;
  width: 100%;
}

.page-contact .sla-list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-contact .sla-list__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.page-contact .sla-list__key {
  font-size: 15px;
  color: var(--paper);
}
.page-contact .sla-list__val {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--cyan);
}

/* ---------- 地址 ---------- */
.page-contact .address-card {
  display: grid;
  justify-items: start;
  gap: 14px;
  margin-top: clamp(20px, 2.6vw, 34px);
  padding: clamp(22px, 2.6vw, 34px);
}
.page-contact .address-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ice);
}
.page-contact .address-card__value {
  max-width: 24em;
  margin: 0;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  line-height: 1.5;
}
.page-contact .address-card__note {
  max-width: 44em;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ice);
}

/* ---------- 相关入口 ---------- */
.page-contact .contact-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(10px, 2vw, 24px);
  padding-top: clamp(24px, 3vw, 40px);
  border-top: 1px solid var(--line);
}

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

@media (min-width: 900px) {
  .page-contact .response {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
  }
  .page-contact .contact-split {
    grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 56px);
  }
  .page-contact .channel-track {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1100px) {
  .page-contact .feedback {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>