.page-contact {
  --contact-line: var(--grid);
  --contact-line-soft: var(--grid-soft);
  --contact-soft: var(--paper-dim);
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(1.4rem, 4vw, 2.6rem) clamp(2.2rem, 6vw, 4rem);
  background: var(--ink);
}

.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(7, 11, 15, 0.6) 0%, rgba(7, 11, 15, 0.93) 62%, var(--ink) 100%);
}

.page-contact .contact-hero__rule {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0.8;
  background: linear-gradient(
    90deg,
    var(--flag-blue) 0 20%,
    var(--paper) 20% 40%,
    var(--ochre) 40% 60%,
    var(--flag-green) 60% 80%,
    var(--flag-yellow) 80% 100%
  );
}

.page-contact .contact-hero .breadcrumbs {
  margin-bottom: clamp(0.8rem, 2vw, 1.4rem);
}

.page-contact .contact-hero__title {
  margin: 0.6rem 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.85rem, 6.2vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin-top: 1rem;
  max-width: 44rem;
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
  color: var(--contact-soft);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
}

/* 通道卡 */
.page-contact .channel-card {
  position: relative;
  padding: clamp(1.1rem, 3.4vw, 1.8rem);
  border: 1px solid var(--contact-line);
  background: linear-gradient(150deg, rgba(16, 24, 32, 0.95), rgba(12, 18, 24, 0.88));
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), transparent 72%);
}

.page-contact .channel-card__label {
  margin: 0 0 0.35rem;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--rock);
}

.page-contact .channel-card__mail {
  display: inline-block;
  font-family: var(--font-num);
  font-size: clamp(1.02rem, 3.6vw, 1.45rem);
  letter-spacing: 0.01em;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .channel-card__mail:hover,
.page-contact .channel-card__mail:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.page-contact .channel-card__note {
  margin: 0.55rem 0 0;
  max-width: 34rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--contact-soft);
}

.page-contact .channel-card__phone {
  margin-top: clamp(1rem, 3vw, 1.4rem);
  padding-top: clamp(1rem, 3vw, 1.4rem);
  border-top: 1px solid var(--contact-line-soft);
}

.page-contact .channel-card__tel {
  display: inline-block;
  font-family: var(--font-num);
  font-size: clamp(1.75rem, 7vw, 2.9rem);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--paper);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-contact .channel-card__tel:hover,
.page-contact .channel-card__tel:focus-visible {
  color: var(--cyan);
}

/* 首屏准备清单 */
.page-contact .prep-brief {
  padding: clamp(1.1rem, 3.4vw, 1.6rem);
  border: 1px solid var(--contact-line);
  background: rgba(7, 11, 15, 0.74);
}

.page-contact .prep-brief__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.02rem, 2.8vw, 1.25rem);
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-contact .prep-brief__list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-contact .prep-brief__list li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.6rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed var(--contact-line-soft);
  font-size: 0.87rem;
  line-height: 1.65;
  color: var(--contact-soft);
}

.page-contact .prep-brief__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .prep-brief__num {
  font-family: var(--font-num);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--ochre);
}

/* 数据带 */
.page-contact .contact-belt {
  border-block: 1px solid var(--contact-line);
  background: var(--panel-2);
}

.page-contact .contact-belt__inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--contact-line-soft);
}

.page-contact .belt-item {
  padding: 1rem clamp(0.75rem, 2.6vw, 1.5rem);
  background: var(--panel-2);
}

.page-contact .belt-item__num {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(1.45rem, 5vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-contact .belt-item__text {
  margin: 0.4rem 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--rock);
}

/* 章节骨架 */
.page-contact .contact-section {
  padding-block: clamp(2.2rem, 6vw, 3.6rem);
  border-top: 1px solid var(--contact-line-soft);
}

.page-contact .contact-section--tight {
  padding-block: clamp(1.6rem, 4vw, 2.6rem) clamp(2.4rem, 6vw, 3.8rem);
}

.page-contact .split {
  display: grid;
  gap: clamp(1.2rem, 4vw, 2.4rem);
}

.page-contact .split__text {
  margin: 0 0 0.4rem;
  max-width: 46rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--contact-soft);
}

.page-contact .split__hint {
  margin: 1.2rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--ochre);
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--contact-soft);
}

/* 通道对照行 */
.page-contact .route-table {
  margin: clamp(1.2rem, 3vw, 1.8rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--contact-line);
}

.page-contact .route-row {
  display: grid;
  gap: 0.35rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--contact-line-soft);
}

.page-contact .route-row__scene {
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .route-row__channel {
  font-family: var(--font-num);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .route-row__need {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--rock);
}

/* 打勾清单 */
.page-contact .check-matrix {
  display: grid;
  gap: 0.7rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .check-matrix li {
  position: relative;
  padding-left: 2rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--contact-soft);
}

.page-contact .check-matrix li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.5em;
  width: 0.85rem;
  height: 0.45rem;
  border-left: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
}

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

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

.page-contact .media-frame__caption {
  margin: 0;
  padding: 0.7rem 0.9rem;
  border-top: 1px solid var(--contact-line-soft);
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--rock);
}

/* 桌面端反馈卡 */
.page-contact .feedback-grid {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-contact .feedback-card {
  padding: clamp(1rem, 3vw, 1.35rem);
  border: 1px solid var(--contact-line);
  background: var(--panel-2);
}

.page-contact .feedback-card__k {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--ochre);
}

.page-contact .feedback-card__t {
  margin: 0.45rem 0 0.6rem;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .feedback-card p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--contact-soft);
}

.page-contact .inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

/* 合作卡 */
.page-contact .partner-grid {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-contact .partner-card {
  padding: clamp(1rem, 3.2vw, 1.4rem);
  border: 1px solid var(--contact-line);
  border-top-width: 2px;
  background: linear-gradient(170deg, rgba(16, 24, 32, 0.92), rgba(12, 18, 24, 0.86));
}

.page-contact .partner-card--cyan {
  border-top-color: var(--cyan);
}

.page-contact .partner-card--ochre {
  border-top-color: var(--ochre);
}

.page-contact .partner-card--yellow {
  border-top-color: var(--flag-yellow);
}

.page-contact .partner-card__t {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .partner-card p {
  margin: 0 0 0.7rem;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--contact-soft);
}

.page-contact .partner-card__meta {
  margin: 0;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--contact-line-soft);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--rock);
}

/* 邮件草稿与响应说明 */
.page-contact .mail-draft {
  margin: 1.2rem 0 0;
  max-width: 100%;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  border-left: 2px solid var(--cyan);
  background: rgba(16, 24, 32, 0.92);
  font-family: var(--font-num);
  font-size: 0.8rem;
  line-height: 1.9;
  color: var(--contact-soft);
  white-space: pre-wrap;
  word-break: break-word;
}

.page-contact .response-card {
  padding: clamp(1.1rem, 3.4vw, 1.6rem);
  border: 1px solid var(--contact-line);
  background: rgba(7, 11, 15, 0.7);
}

.page-contact .response-list {
  display: grid;
  gap: 0.7rem;
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .response-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--contact-soft);
}

.page-contact .response-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-contact .response-card__note {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--rock);
}

/* 地址与备案 */
.page-contact .address-panel {
  padding: clamp(1.2rem, 4vw, 2rem);
  border: 1px solid var(--contact-line);
  background: linear-gradient(135deg, rgba(180, 81, 46, 0.14), rgba(16, 24, 32, 0.92) 58%);
}

.page-contact .address-panel__line {
  margin: 0.5rem 0 1.2rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.15rem, 4vw, 1.85rem);
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .address-meta {
  display: grid;
  gap: 0.9rem;
  margin: 0;
}

.page-contact .address-meta dt {
  margin-bottom: 0.25rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--rock);
}

.page-contact .address-meta dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.94rem;
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-all;
}

/* 响应式 */
@media (min-width: 760px) {
  .page-contact .route-row {
    grid-template-columns: minmax(0, 1.6fr) 8rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }

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

@media (min-width: 880px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
    gap: 1.25rem;
  }

  .page-contact .prep-brief {
    transform: translateY(1.5rem);
  }

  .page-contact .contact-belt__inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

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

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

@media (min-width: 1080px) {
  .page-contact .contact-hero__title {
    font-size: clamp(2.6rem, 4.4vw, 3.6rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card__mail,
  .page-contact .channel-card__tel {
    transition: none;
  }

  .page-contact .prep-brief {
    transform: none;
  }
}
<<<END>>>