.page-contact {
  --pc-line: 2px solid var(--ink);
  --pc-line-light: 2px solid var(--frost);
  --pc-shadow: 6px 6px 0 var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-contact .co-process__figure,
.page-contact .co-contact__figure {
  margin: clamp(28px, 5vw, 48px) 0 0;
}

.page-contact .co-process__figure img,
.page-contact .co-contact__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(32px, 6vw, 72px);
  display: grid;
  gap: clamp(28px, 5vw, 48px);
}

.page-contact .co-hero__title {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 10.5vw, 5.6rem);
  line-height: 0.94;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-contact .co-hero__lead {
  max-width: 46ch;
  margin: 0;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.85;
}

.page-contact .co-hero__aside {
  border-top: var(--pc-line);
  padding-top: 18px;
}

.page-contact .co-hero__aside-note {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ice);
}

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

.page-contact .co-hero__list-item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(16, 24, 32, 0.35);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .co-hero__idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--ice);
}

.page-contact .co-hero__cta {
  width: 100%;
}

/* ---------- 合作方向 ---------- */
.page-contact .co-types__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .co-types__head h2 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 3rem);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .co-types__intro {
  margin: 0;
  max-width: 34ch;
  line-height: 1.85;
  color: rgba(16, 24, 32, 0.82);
}

.page-contact .co-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-contact .co-item {
  display: grid;
  gap: 8px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-top: var(--pc-line);
}

.page-contact .co-item:last-child {
  border-bottom: var(--pc-line);
}

.page-contact .co-item__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--signal);
  font-weight: 700;
}

.page-contact .co-item__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 5.5vw, 2.7rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .co-item__text {
  margin: 0 0 14px;
  max-width: 60ch;
  line-height: 1.85;
}

.page-contact .co-item__meta {
  margin: 0;
}

/* ---------- 流程 ---------- */
.page-contact .co-process__head h2 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 3.2rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .co-process__head .lead {
  max-width: 58ch;
  margin: 0;
  line-height: 1.85;
}

.page-contact .co-steps {
  list-style: none;
  margin: clamp(28px, 5vw, 44px) 0 0;
  padding: 0;
}

.page-contact .co-step {
  position: relative;
  margin-left: 14px;
  padding: 0 0 26px 42px;
  border-left: var(--pc-line);
}

.page-contact .co-step__num {
  position: absolute;
  left: -15px;
  top: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: var(--signal);
  color: var(--ink);
  border: var(--pc-line);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
}

.page-contact .co-step__title {
  margin: 4px 0 8px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .co-step__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(16, 24, 32, 0.84);
}

/* ---------- 联系 ---------- */
.page-contact .co-contact__grid {
  display: grid;
  gap: clamp(28px, 5vw, 44px);
}

.page-contact .co-contact__card {
  border: var(--pc-line);
  box-shadow: var(--pc-shadow);
  background: var(--paper);
  padding: clamp(20px, 4vw, 34px);
}

.page-contact .co-contact__card h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 3rem);
  line-height: 1.04;
  font-weight: 800;
}

.page-contact .co-contact__note {
  margin: 0 0 22px;
  max-width: 52ch;
  line-height: 1.85;
  font-size: 0.97rem;
}

.page-contact .co-channel {
  margin: 0;
  border-top: var(--pc-line);
}

.page-contact .co-channel__row {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(16, 24, 32, 0.25);
}

.page-contact .co-channel__key {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ice);
}

.page-contact .co-channel__val {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  line-height: 1.7;
}

.page-contact .co-channel__mono {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  word-break: break-all;
}

.page-contact .co-copy {
  flex: 0 0 auto;
}

.page-contact .co-sticker-wrap {
  margin-top: 26px;
}

.page-contact .co-sticker {
  display: inline-block;
  margin: 0;
  padding: 12px 16px;
  background: var(--signal);
  color: var(--ink);
  border: var(--pc-line);
  box-shadow: 4px 4px 0 var(--ink);
  transform: rotate(-2.5deg);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.page-contact .co-contact__links {
  margin-top: 24px;
  padding-top: 18px;
  border-top: var(--pc-line);
}

.page-contact .co-contact__links-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ice);
}

.page-contact .co-link {
  display: block;
  padding: 10px 0;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(16, 24, 32, 0.28);
  font-size: 0.96rem;
  line-height: 1.6;
}

.page-contact .co-link::after {
  content: " →";
  color: var(--signal);
}

.page-contact .co-link:hover,
.page-contact .co-link:focus-visible {
  color: var(--ice);
}

.page-contact .co-link--light {
  display: inline;
  padding: 0;
  color: var(--frost);
  border-bottom-color: rgba(169, 211, 230, 0.5);
}

.page-contact .co-link--light:hover,
.page-contact .co-link--light:focus-visible {
  color: var(--snow);
}

/* ---------- 自查清单 ---------- */
.page-contact .co-check {
  background: var(--deep);
  color: var(--snow);
}

.page-contact .co-check__eyebrow {
  color: var(--frost);
}

.page-contact .co-check__head h2 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 6vw, 3.2rem);
  line-height: 1.05;
  font-weight: 800;
  color: var(--snow);
  max-width: 24ch;
}

.page-contact .co-check__lead {
  margin: 0;
  max-width: 56ch;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.82);
}

.page-contact .co-checklist {
  list-style: none;
  margin: clamp(28px, 5vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .co-check__item {
  position: relative;
  padding: 18px 0 18px 42px;
  border-top: 1px solid rgba(169, 211, 230, 0.35);
}

.page-contact .co-check__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 20px;
  height: 20px;
  border: 2px solid var(--frost);
}

.page-contact .co-check__item-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--snow);
}

.page-contact .co-check__item-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
}

.page-contact .co-check__tail {
  margin: 24px 0 0;
  padding: 14px 16px;
  border: 2px solid var(--signal);
  color: var(--snow);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* ---------- 收尾 ---------- */
.page-contact .co-outro__grid {
  display: grid;
  gap: clamp(22px, 4vw, 34px);
}

.page-contact .co-outro__block h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5.5vw, 2.6rem);
  line-height: 1.06;
  font-weight: 800;
}

.page-contact .co-outro__text {
  margin: 0 0 20px;
  max-width: 52ch;
  line-height: 1.85;
}

.page-contact .co-outro__actions {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .co-outro__block--deep {
  background: var(--ice);
  color: var(--snow);
  padding: clamp(22px, 4vw, 32px);
  border: var(--pc-line);
  box-shadow: var(--pc-shadow);
}

.page-contact .co-outro__big {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4.2vw, 1.9rem);
  line-height: 1.3;
  font-weight: 700;
}

.page-contact .co-outro__fine {
  margin: 18px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------- 桌面 ---------- */
@media (min-width: 780px) {
  .page-contact .co-hero {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .co-hero__aside {
    border-top: 0;
    border-left: var(--pc-line);
    padding-top: 0;
    padding-left: clamp(20px, 3vw, 32px);
    margin-top: 8px;
  }

  .page-contact .co-hero__cta {
    width: auto;
  }

  .page-contact .co-types__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.6fr);
    align-items: start;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-contact .co-types__head {
    position: sticky;
    top: 96px;
  }

  .page-contact .co-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 4px;
  }

  .page-contact .co-step {
    margin-left: 0;
    padding: 26px 20px 0 0;
    border-left: 0;
    border-top: var(--pc-line);
  }

  .page-contact .co-steps {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0 clamp(12px, 1.6vw, 24px);
  }

  .page-contact .co-step__num {
    position: static;
    margin: 0 0 14px;
    transform: translateY(-42px);
  }

  .page-contact .co-step__title {
    margin-top: -18px;
  }

  .page-contact .co-contact__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.92fr);
    align-items: start;
    gap: clamp(32px, 5vw, 56px);
  }

  .page-contact .co-contact__figure {
    margin-top: 0;
  }

  .page-contact .co-channel__row {
    grid-template-columns: 128px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-contact .co-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 clamp(24px, 4vw, 48px);
  }

  .page-contact .co-outro__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-contact .co-hero__title {
    font-size: clamp(3.6rem, 7vw, 6rem);
  }

  .page-contact .co-contact__card {
    padding: clamp(28px, 3vw, 40px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-sticker {
    transform: none;
  }
}
<<<END>>>