.page-contact {
  --contact-line: rgba(169, 216, 200, .20);
  --contact-panel: #122B24;
  background: var(--ink-800);
  color: var(--paper);
  overflow-x: clip;
}

.page-contact .contact-top {
  padding: 18px 0 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(18px, 4vw, 36px) 0 clamp(30px, 6vw, 60px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: -14%;
  right: -14%;
  width: min(860px, 116vw);
  height: min(540px, 78vw);
  background:
    radial-gradient(circle at 60% 40%, rgba(92, 242, 180, .16), transparent 60%),
    linear-gradient(140deg, rgba(200, 64, 43, .18), transparent 54%);
  clip-path: polygon(36% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 46ch;
}

.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-hero__lede {
  margin: 16px 0 0;
  max-width: 44ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--paper);
}

/* ---------- 通用小件 ---------- */
.page-contact .sec-no {
  display: inline-block;
  margin: 0;
  padding: 3px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(92, 242, 180, .08);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mint);
}

.page-contact .contact-split h2,
.page-contact .contact-flow h2,
.page-contact .coop-card h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

/* ---------- 主分栏 ---------- */
.page-contact .contact-main {
  padding: clamp(30px, 5vw, 56px) 0 clamp(36px, 6vw, 68px);
}

.page-contact .contact-split {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

.page-contact .contact-split__intro,
.page-contact .contact-flow__intro {
  margin: 12px 0 22px;
  max-width: 42ch;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ch-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ch-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--contact-line);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(18, 43, 36, .94), rgba(11, 31, 26, .94));
  transition: transform .2s ease, border-color .2s ease;
}

.page-contact .ch-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.page-contact .ch-card__icon {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(92, 242, 180, .28);
  background: rgba(92, 242, 180, .12);
  color: var(--mint);
}

.page-contact .ch-card__icon svg {
  width: 20px;
  height: 20px;
}

.page-contact .ch-card__body {
  display: block;
  min-width: 0;
}

.page-contact .ch-card__label {
  display: block;
  font-size: var(--fs-caption);
  letter-spacing: .08em;
  color: var(--graphite);
}

.page-contact .ch-card__value {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 19px);
  font-weight: 600;
  color: var(--white);
  word-break: break-word;
}

.page-contact .ch-card__meta {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-caption);
  line-height: 1.6;
  color: var(--graphite);
}

.page-contact .contact-thumb {
  margin: 18px 0 0;
  overflow: hidden;
  border: 1px solid var(--contact-line);
  border-radius: var(--r-lg);
}

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

/* ---------- 标签页 ---------- */
.page-contact .contact-split__right h2 {
  margin-bottom: 16px;
}

.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
}

.page-contact .tab {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--contact-line);
  background: rgba(7, 18, 15, .55);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.page-contact .tab:hover {
  border-color: var(--line-strong);
  color: var(--paper);
}

.page-contact .tab[aria-selected="true"] {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink-900);
}

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

.page-contact .tabpanel {
  padding: 20px;
  border: 1px solid var(--contact-line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(18, 43, 36, .92), rgba(11, 31, 26, .78));
}

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

.page-contact .tabpanel > p {
  margin: 0 0 16px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .req-list {
  list-style: none;
  counter-reset: req;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .req-list > li {
  counter-increment: req;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 15px;
  border: 1px solid var(--contact-line);
  border-radius: var(--r-md);
  background: rgba(7, 18, 15, .52);
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .req-list > li::before {
  content: counter(req, decimal-leading-zero);
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--cinnabar);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

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

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow {
  padding: clamp(30px, 5vw, 60px) 0;
  border-top: 1px solid var(--contact-line);
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .flow__item {
  position: relative;
  padding: 28px 22px 24px;
  border: 1px solid var(--contact-line);
  border-radius: var(--r-lg);
  background: var(--contact-panel);
  transition: transform .2s ease, border-color .2s ease;
}

.page-contact .flow__item:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.page-contact .flow__dot {
  position: absolute;
  top: 24px;
  right: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(92, 242, 180, .16);
}

.page-contact .flow__step {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mint);
}

.page-contact .flow__title {
  margin: 8px 0 10px;
  padding-right: 26px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 22px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .flow__text {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-flow__note {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--graphite);
}

.page-contact .contact-flow__note a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 合作 ---------- */
.page-contact .contact-coop {
  padding: 0 0 clamp(32px, 5vw, 60px);
}

.page-contact .coop-card {
  position: relative;
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--cinnabar);
  border-radius: var(--r-xl);
  background:
    linear-gradient(135deg, rgba(200, 64, 43, .13), transparent 56%),
    var(--ink-700);
}

.page-contact .coop-card__lead {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .coop-card__list {
  list-style: none;
  margin: 20px 0 26px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .coop-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .coop-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 9px;
  height: 1px;
  background: var(--mint);
}

/* ---------- 地址 ---------- */
.page-contact .contact-address {
  padding: 0 0 clamp(32px, 5vw, 60px);
}

.page-contact .addr-card {
  display: grid;
  gap: 12px;
  justify-items: start;
  padding: clamp(22px, 4vw, 44px);
  border-radius: var(--r-xl);
  background: var(--paper);
  color: var(--ink-900);
  box-shadow: var(--shadow-1);
}

.page-contact .addr-card__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(200, 64, 43, .12);
  color: var(--cinnabar);
}

.page-contact .addr-card__icon svg {
  width: 21px;
  height: 21px;
}

.page-contact .addr-card h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.page-contact .addr-card__line {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(18px, 2.8vw, 26px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-contact .addr-card__text {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: #3A4A44;
}

.page-contact .addr-card__meta {
  margin: 0;
  font-size: var(--fs-caption);
  line-height: 1.7;
  color: #5A6B64;
}

.page-contact .addr-card a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收尾横图 ---------- */
.page-contact .contact-map {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-top: 1px solid var(--contact-line);
}

.page-contact .contact-map img {
  display: block;
  width: 100%;
  height: clamp(180px, 26vw, 320px);
  object-fit: cover;
  opacity: .55;
}

.page-contact .contact-map__cap {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  padding: 6px 16px;
  border: 1px solid var(--contact-line);
  border-radius: 999px;
  background: rgba(7, 18, 15, .82);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-align: center;
}

/* ---------- 断点 ---------- */
@media (min-width: 680px) {
  .page-contact .contact-split__left {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-contact .contact-thumb {
    margin-top: 22px;
  }

  .page-contact .tabpanel {
    padding: 24px;
  }
}

@media (min-width: 860px) {
  .page-contact .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .flow__item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 46px;
    left: 100%;
    width: 20px;
    height: 1px;
    background: repeating-linear-gradient(to right, var(--mist) 0 4px, transparent 4px 8px);
    opacity: .5;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ch-card,
  .page-contact .flow__item,
  .page-contact .tab {
    transition: none;
  }

  .page-contact .ch-card:hover,
  .page-contact .flow__item:hover {
    transform: none;
  }
}
<<<END>>>