.page-contact {
  --pc-gap: clamp(20px, 3vw, 36px);
  --pc-pad: clamp(20px, 2.8vw, 32px);
  background: var(--ink);
  color: var(--cream);
  font-size: var(--body);
  line-height: 1.75;
  overflow-x: clip;
}

.page-contact .container {
  box-sizing: border-box;
}

.page-contact .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: 18px;
  font-size: 13px;
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--mist);
}

.page-contact .breadcrumbs__list li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--rock);
}

.page-contact .breadcrumbs__list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

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

.page-contact .breadcrumbs__list [aria-current="page"] {
  color: var(--cream);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(34px, 5.4vw, 78px) 0 clamp(34px, 4.6vw, 64px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

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

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.24;
  filter: saturate(0.62);
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(102deg, var(--ink) 6%, rgba(6, 42, 36, 0.84) 48%, rgba(4, 18, 15, 0.95) 100%);
}

.page-contact .contact-hero__grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.55;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
  max-width: 1080px;
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--cream);
  max-width: 17em;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15.5px, 1.7vw, 17.5px);
  line-height: 1.75;
  color: var(--cream);
}

.page-contact .contact-hero__meta {
  margin: 4px 0 0;
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--cyan-line);
  background: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 主栅格 ---------- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

/* ---------- 联系卡片 ---------- */
.page-contact .contact-card {
  position: relative;
  background: var(--ink-2);
  border: 1px solid var(--cyan-line);
  padding: var(--pc-pad);
  min-width: 0;
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 3px;
  background: var(--cyan);
}

.page-contact .contact-card__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-contact .contact-card__title {
  margin: 0 0 6px;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--cream);
}

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

.page-contact .contact-card__row {
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-card__row:first-child {
  border-top-color: var(--line-strong);
  margin-top: 14px;
}

.page-contact .contact-card__label {
  display: block;
  margin-bottom: 7px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--rock);
}

.page-contact .contact-card__value {
  display: block;
  font-size: clamp(16px, 2.4vw, 19px);
  line-height: 1.4;
  color: var(--cream);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__value--lg {
  font-size: clamp(18px, 3.2vw, 25px);
  font-weight: 700;
  color: var(--orange);
}

.page-contact .contact-card__hint {
  display: block;
  margin-top: 9px;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--mist);
}

/* ---------- 指引列表 ---------- */
.page-contact .contact-guides {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
  min-width: 0;
}

.page-contact .section-head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-narrow);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-contact .lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .guide-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.page-contact .guide-item {
  display: grid;
  grid-template-columns: minmax(38px, auto) minmax(0, 1fr);
  gap: clamp(12px, 2.4vw, 26px);
  padding: clamp(18px, 2.4vw, 28px) clamp(6px, 1vw, 14px);
  border-bottom: 1px solid var(--line);
  transition: background-color 220ms var(--ease), border-color 220ms var(--ease);
}

.page-contact .guide-item:hover,
.page-contact .guide-item:focus-within {
  border-bottom-color: var(--cyan-line);
  background: linear-gradient(90deg, var(--cyan-soft), transparent 68%);
}

.page-contact .guide-item__index {
  font-size: clamp(20px, 2.8vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--rock);
  transition: color 200ms var(--ease);
}

.page-contact .guide-item:hover .guide-item__index {
  color: var(--cyan);
}

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

.page-contact .guide-item__title {
  margin: 0 0 9px;
  font-size: clamp(16.5px, 1.9vw, 20px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--cream);
}

.page-contact .guide-item__body p {
  margin: 0 0 12px;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .guide-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .guide-item__tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--cyan-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 反馈要点 ---------- */
.page-contact .feedback-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .feedback-copy h2 {
  margin: 10px 0 0;
  font-family: var(--font-narrow);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-contact .feedback-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .feedback-list li {
  position: relative;
  padding: 13px 0 13px 30px;
  border-top: 1px solid var(--line-soft);
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--cream);
}

.page-contact .feedback-list li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .feedback-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 14px;
  height: 2px;
  background: var(--orange);
}

.page-contact .feedback-media {
  min-width: 0;
}

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

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

/* ---------- 合作 ---------- */
.page-contact .collab__head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-narrow);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-contact .collab__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(20px, 3vw, 32px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .collab-card {
  background: var(--ink-2);
  padding: var(--pc-pad);
}

.page-contact .collab-card__num {
  display: block;
  margin-bottom: 12px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--clay);
}

.page-contact .collab-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--cream);
}

.page-contact .collab-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
}

.page-contact .collab__note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--orange);
  max-width: 44em;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
}

.page-contact .collab__note .mono {
  color: var(--cream);
}

/* ---------- 快速入口 ---------- */
.page-contact .quick-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .quick-link {
  display: block;
  background: var(--ink);
  padding: clamp(18px, 2.2vw, 26px) clamp(16px, 2vw, 24px);
  text-decoration: none;
  color: inherit;
  transition: background-color 200ms var(--ease);
}

.page-contact .quick-link:hover,
.page-contact .quick-link:focus-visible {
  background: var(--ink-2);
  outline: none;
}

.page-contact .quick-link__label {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: 16px;
  color: var(--cyan);
}

.page-contact .quick-link__text {
  display: block;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-contact .quick-link::after {
  content: "\2192";
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--rock);
  transition: transform 200ms var(--ease), color 200ms var(--ease);
}

.page-contact .quick-link:hover::after,
.page-contact .quick-link:focus-visible::after {
  transform: translateX(5px);
  color: var(--orange);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-contact .collab__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .feedback-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .feedback-media {
    margin-top: 46px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(320px, 400px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-card {
    position: sticky;
    top: 96px;
  }

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

@media (min-width: 1280px) {
  .page-contact .contact-hero__inner {
    max-width: 1120px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .guide-item,
  .page-contact .quick-link,
  .page-contact .quick-link::after,
  .page-contact .guide-item__index {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>