.page-contact {
  --ct-shadow: 0 18px 40px -28px rgba(23, 21, 18, .7);
  background: var(--paper);
  color: var(--ink);
}

.page-contact .section {
  padding: clamp(46px, 6.5vw, 92px) 0;
}

.page-contact a {
  color: var(--clay);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-contact a:hover {
  color: var(--sun);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(16px, 2.6vw, 28px) 0 clamp(38px, 5.4vw, 70px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(58%, 760px);
  height: 100%;
  background: linear-gradient(152deg, rgba(228, 87, 46, .14) 0 45%, transparent 45.2% 100%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .contact-hero__copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: .02em;
}

.page-contact .contact-hero__lead {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 2.8vw, 28px);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  padding: 0;
  border-top: var(--rule) solid var(--copper);
}

.page-contact .contact-hero__facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(184, 137, 75, .38);
  font-size: .94rem;
}

.page-contact .contact-hero__facts span {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--lake-mid);
}

.page-contact .contact-hero__facts b {
  font-weight: 500;
  overflow-wrap: anywhere;
}

.page-contact .contact-hero__figure {
  margin: 0;
}

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

/* ---------- 直接联系：深青收束大块 ---------- */
.page-contact .contact-direct {
  position: relative;
  overflow: hidden;
  background: var(--lake);
  color: var(--paper);
  padding: clamp(42px, 6vw, 88px) 0;
}

.page-contact .contact-direct::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, rgba(184, 137, 75, .14) 0 1px, transparent 1px 15px);
  opacity: .55;
  pointer-events: none;
}

.page-contact .contact-direct__inner {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .contact-direct h2 {
  color: var(--paper);
  margin: 10px 0 0;
}

.page-contact .eyebrow--on-dark {
  color: var(--sand);
}

.page-contact .eyebrow--on-dark::before {
  background: var(--sun);
}

.page-contact .contact-direct__mail-label {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--copper);
}

.page-contact .contact-direct__mail {
  display: inline-block;
  margin: 6px 0 0;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(1rem, 2.15vw, 1.55rem);
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--white);
  border-bottom: 2px solid var(--sun);
  overflow-wrap: anywhere;
}

.page-contact .contact-direct__note {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: .95rem;
  line-height: 1.85;
  color: rgba(247, 244, 236, .82);
}

.page-contact .contact-direct__note a {
  color: var(--sand);
  text-decoration-color: var(--copper);
}

.page-contact .contact-direct__note a:hover {
  color: var(--white);
}

.page-contact .contact-rows {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
}

.page-contact .contact-row {
  display: grid;
  gap: 2px 18px;
  padding: 13px 0;
  border-top: 1px solid rgba(247, 244, 236, .2);
}

.page-contact .contact-row dt {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--copper);
}

.page-contact .contact-row dd {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-direct__figure {
  margin: 0;
}

.page-contact .contact-direct__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--rule) solid rgba(247, 244, 236, .34);
  box-shadow: var(--ct-shadow);
}

.page-contact .contact-direct__figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: .74rem;
  line-height: 1.7;
  letter-spacing: .05em;
  color: rgba(247, 244, 236, .7);
}

/* ---------- 合作类型：纯 CSS 切换 ---------- */
.page-contact .contact-types__lead {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-contact .coop {
  position: relative;
  margin-top: clamp(24px, 3.6vw, 38px);
}

.page-contact .coop__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .coop__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-contact .coop__tabs label {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border: var(--rule) solid var(--ink);
  background: var(--white);
  font-size: .9rem;
  letter-spacing: .04em;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .coop__tabs label:hover {
  border-color: var(--sun);
  color: var(--clay);
}

.page-contact #coop-1:checked ~ .coop__tabs label[for="coop-1"],
.page-contact #coop-2:checked ~ .coop__tabs label[for="coop-2"],
.page-contact #coop-3:checked ~ .coop__tabs label[for="coop-3"],
.page-contact #coop-4:checked ~ .coop__tabs label[for="coop-4"] {
  background: var(--lake);
  border-color: var(--lake);
  color: var(--paper);
}

.page-contact #coop-1:focus-visible ~ .coop__tabs label[for="coop-1"],
.page-contact #coop-2:focus-visible ~ .coop__tabs label[for="coop-2"],
.page-contact #coop-3:focus-visible ~ .coop__tabs label[for="coop-3"],
.page-contact #coop-4:focus-visible ~ .coop__tabs label[for="coop-4"] {
  outline: 2px solid var(--sun);
  outline-offset: 3px;
}

.page-contact .coop__panels {
  border-top: var(--rule) solid var(--ink);
}

.page-contact .coop__panel {
  display: none;
  padding: clamp(20px, 3vw, 30px) 0 0;
}

.page-contact #coop-1:checked ~ .coop__panels .coop__panel:nth-child(1),
.page-contact #coop-2:checked ~ .coop__panels .coop__panel:nth-child(2),
.page-contact #coop-3:checked ~ .coop__panels .coop__panel:nth-child(3),
.page-contact #coop-4:checked ~ .coop__panels .coop__panel:nth-child(4) {
  display: block;
}

.page-contact .coop__panel h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.2rem, 2.3vw, 1.6rem);
  line-height: 1.4;
  letter-spacing: .02em;
}

.page-contact .coop__panel p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: .97rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .coop__meta {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .coop__meta li {
  position: relative;
  padding-left: 18px;
  font-size: .93rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .coop__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  background: var(--sun);
}

/* ---------- 合作流程 ---------- */
.page-contact .flow-list {
  list-style: none;
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 24px);
}

.page-contact .flow-step {
  padding: 18px 0 0;
  border-top: 2px solid var(--copper);
}

.page-contact .flow-step__num {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .22em;
  color: var(--clay);
}

.page-contact .flow-step h3 {
  margin: 8px 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.06rem;
  letter-spacing: .06em;
}

.page-contact .flow-step p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .flow-terrace {
  display: block;
  width: 100%;
  height: clamp(40px, 6vw, 64px);
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 常见联系场景 ---------- */
.page-contact .scenes {
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-contact .scene {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px);
}

.page-contact .scene .tag {
  align-self: flex-start;
}

.page-contact .scene h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.04rem;
  letter-spacing: .04em;
}

.page-contact .scene p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .scene .scene__how {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed rgba(184, 137, 75, .7);
  font-family: var(--font-mono);
  font-size: .76rem;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--lake-mid);
}

/* ---------- 回复说明 ---------- */
.page-contact .contact-response {
  padding: clamp(34px, 5vw, 62px) 0 clamp(48px, 6.5vw, 84px);
}

.page-contact .contact-response__inner {
  display: grid;
  gap: 12px;
  justify-items: start;
  padding: clamp(22px, 3.2vw, 36px);
  background: var(--sand);
  border-left: 4px solid var(--sun);
  box-shadow: var(--ct-shadow);
}

.page-contact .contact-response__inner h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 2.8vw, 2rem);
  line-height: 1.35;
  letter-spacing: .02em;
}

.page-contact .contact-response__inner p {
  margin: 0;
  max-width: 66ch;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .contact-response__inner .btn {
  margin-top: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-row {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
  }
}

@media (min-width: 820px) {
  .page-contact .flow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-direct__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }
}

@media (min-width: 920px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
  }
}

@media (max-width: 619px) {
  .page-contact .contact-direct__mail {
    font-size: .95rem;
  }

  .page-contact .coop__tabs label {
    flex: 1 1 auto;
    justify-content: center;
    padding: 9px 12px;
    font-size: .85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop__tabs label {
    transition: none;
  }
}