.page-contact {
  --pc-line: rgba(201, 214, 226, 0.9);
  --pc-shadow: 0 1px 0 rgba(11, 14, 20, 0.04);
  background: var(--mist);
  color: var(--text);
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--on-dark);
  padding: clamp(30px, 5vw, 68px) 0 clamp(38px, 5.5vw, 78px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(112deg, rgba(10, 76, 140, 0.62) 0%, rgba(0, 224, 208, 0.12) 42%, rgba(11, 14, 20, 0) 68%),
    repeating-linear-gradient(112deg, rgba(234, 241, 247, 0.045) 0 1px, rgba(0, 0, 0, 0) 1px 15px);
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
}

.page-contact .contact-hero__text {
  min-width: 0;
}

.page-contact .contact-hero .breadcrumb,
.page-contact .contact-hero .breadcrumb a {
  color: var(--on-dark-dim);
}

.page-contact .contact-hero .breadcrumb a:hover {
  color: var(--cyan);
}

.page-contact .contact-hero__eyebrow {
  margin: 20px 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  max-width: 17em;
  font-size: clamp(29px, 4.2vw, 50px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.page-contact .contact-hero__lead {
  margin: 0 0 30px;
  max-width: 34em;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.85;
  color: var(--on-dark-soft);
}

.page-contact .contact-hero__facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(234, 241, 247, 0.14);
  border: 1px solid rgba(234, 241, 247, 0.14);
}

.page-contact .contact-hero__facts li {
  background: var(--ink);
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--on-dark-soft);
}

.page-contact .contact-hero__facts b {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-contact .contact-hero__media {
  margin: 0;
  background: var(--slate);
  border: 1px solid rgba(0, 224, 208, 0.3);
}

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

.page-contact .contact-hero__media .media__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--on-dark-dim);
  border-top: 1px solid rgba(0, 224, 208, 0.2);
}

/* ============ 合作方式 ============ */
.page-contact .contact-coop {
  background: var(--haze);
  padding: clamp(38px, 5.5vw, 78px) 0 clamp(34px, 5vw, 70px);
  border-bottom: 1px solid var(--grid);
}

.page-contact .coop {
  position: relative;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .coop__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .coop__tabs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-contact .coop-tab {
  position: relative;
  display: block;
  padding: 20px 20px 22px;
  background: #ffffff;
  border-left: 3px solid transparent;
  cursor: pointer;
  transition: background 200ms var(--ease), border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-contact .coop-tab__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--fdb);
  margin-bottom: 10px;
}

.page-contact .coop-tab__title {
  display: block;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--text);
}

.page-contact .coop-tab__for {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--text-dim);
}

.page-contact #coop-a:checked ~ .coop__tabs label[for="coop-a"],
.page-contact #coop-b:checked ~ .coop__tabs label[for="coop-b"],
.page-contact #coop-c:checked ~ .coop__tabs label[for="coop-c"] {
  background: var(--fdb);
  border-color: var(--cyan);
}

.page-contact #coop-a:checked ~ .coop__tabs label[for="coop-a"] .coop-tab__no,
.page-contact #coop-b:checked ~ .coop__tabs label[for="coop-b"] .coop-tab__no,
.page-contact #coop-c:checked ~ .coop__tabs label[for="coop-c"] .coop-tab__no {
  color: var(--cyan);
}

.page-contact #coop-a:checked ~ .coop__tabs label[for="coop-a"] .coop-tab__title,
.page-contact #coop-b:checked ~ .coop__tabs label[for="coop-b"] .coop-tab__title,
.page-contact #coop-c:checked ~ .coop__tabs label[for="coop-c"] .coop-tab__title {
  color: #ffffff;
}

.page-contact #coop-a:checked ~ .coop__tabs label[for="coop-a"] .coop-tab__for,
.page-contact #coop-b:checked ~ .coop__tabs label[for="coop-b"] .coop-tab__for,
.page-contact #coop-c:checked ~ .coop__tabs label[for="coop-c"] .coop-tab__for {
  color: rgba(234, 241, 247, 0.72);
}

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

.page-contact .coop-panel {
  display: none;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(22px, 3vw, 38px);
  background: #ffffff;
  border: 1px solid var(--grid);
  border-top: 2px solid var(--fdb);
  transition: border-top-color 180ms var(--ease);
}

.page-contact .coop-panel:hover {
  border-top-color: var(--cyan);
}

.page-contact #coop-a:checked ~ .coop__panels .coop-panel[data-panel="a"],
.page-contact #coop-b:checked ~ .coop__panels .coop-panel[data-panel="b"],
.page-contact #coop-c:checked ~ .coop__panels .coop-panel[data-panel="c"] {
  display: grid;
}

.page-contact .coop-panel__body {
  min-width: 0;
}

.page-contact .coop-panel__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan-deep);
}

.page-contact .coop-panel__who {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .coop-panel__who li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-contact .coop-panel__who li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .coop-panel__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-contact .coop-panel__side {
  min-width: 0;
  padding: 18px 20px;
  background: var(--haze);
  border-left: 3px solid var(--orange);
}

.page-contact .coop-panel__side .coop-panel__kicker {
  color: var(--odd);
}

.page-contact .coop-panel__side p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

/* ============ 直接联系 + 留言 ============ */
.page-contact .contact-direct {
  background: var(--mist);
  padding: clamp(38px, 5.5vw, 78px) 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .direct-grid {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .channels {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid);
}

.page-contact .channel {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .channel__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan-deep);
}

.page-contact .channel__val {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.5vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-media {
  margin: 0 0 18px;
  border: 1px solid var(--grid);
  background: var(--slate);
}

.page-contact .channel-media .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .channel-media .media__cap {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-dim);
  border-top: 1px solid var(--grid);
  background: #ffffff;
}

.page-contact .direct-hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact .direct-hint a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 133, 124, 0.4);
}

.page-contact .direct-hint a:hover {
  color: var(--fdb);
  border-bottom-color: var(--fdb);
}

.page-contact .ask {
  background: #ffffff;
  border: 1px solid var(--grid);
  border-top: 2px solid var(--cyan);
  padding: clamp(20px, 2.6vw, 32px);
}

.page-contact .ask__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan-deep);
  margin-bottom: 10px;
}

.page-contact .ask__title {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .ask__lead {
  margin: 0 0 24px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact .ask__fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .field {
  min-width: 0;
}

.page-contact .field__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-dim);
}

.page-contact .field__input {
  display: block;
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--mist);
  border: 1px solid var(--grid);
  border-left: 3px solid var(--fdb);
  border-radius: 0;
  outline: none;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease), background 180ms var(--ease);
}

.page-contact .field__input:hover {
  background: #ffffff;
}

.page-contact .field__input:focus {
  background: #ffffff;
  border-color: var(--cyan);
  border-left-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 224, 208, 0.18);
}

.page-contact .field__input--area {
  resize: vertical;
  min-height: 118px;
}

.page-contact .ask__foot {
  display: grid;
  gap: 14px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--grid);
  align-items: center;
}

.page-contact .ask__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .ask__submit {
  justify-self: start;
}

/* ============ 咨询准备 ============ */
.page-contact .contact-prep {
  background: var(--haze);
  padding: clamp(38px, 5.5vw, 78px) 0 clamp(34px, 5vw, 70px);
  border-bottom: 1px solid var(--grid);
}

.page-contact .prep-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-contact .prep-item {
  position: relative;
  padding: 22px 20px 26px;
  background: #ffffff;
  border-top: 2px solid transparent;
  transition: border-top-color 200ms var(--ease);
}

.page-contact .prep-item:hover {
  border-top-color: var(--cyan);
}

.page-contact .prep-item__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--grid);
  margin-bottom: 14px;
}

.page-contact .prep-item__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .prep-item__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .prep-tail {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .prep-tail a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 133, 124, 0.4);
}

.page-contact .prep-tail a:hover {
  color: var(--fdb);
  border-bottom-color: var(--fdb);
}

/* ============ 来访与地点 ============ */
.page-contact .contact-visit {
  background: var(--ink);
  color: var(--on-dark);
  padding: clamp(38px, 5.5vw, 78px) 0 clamp(42px, 6vw, 86px);
}

.page-contact .visit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-contact .visit-text {
  min-width: 0;
}

.page-contact .contact-visit .section-head--dark .section-head__title {
  color: #ffffff;
}

.page-contact .visit-lead {
  margin: 20px 0 26px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--on-dark-soft);
}

.page-contact .visit-meta {
  margin: 0;
  border-top: 1px solid rgba(234, 241, 247, 0.18);
}

.page-contact .visit-meta__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(234, 241, 247, 0.18);
}

.page-contact .visit-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .visit-meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-dark);
  overflow-wrap: anywhere;
}

.page-contact .visit-map {
  margin: 0;
  min-width: 0;
}

.page-contact .visit-map__svg {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(0, 224, 208, 0.28);
  background: var(--ink);
}

.page-contact .visit-map__cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

/* ============ 响应式 ============ */
@media (min-width: 600px) {
  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 780px) {
  .page-contact .ask__fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .field--full {
    grid-column: 1 / -1;
  }

  .page-contact .ask__foot {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-contact .coop-panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

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

@media (min-width: 900px) {
  .page-contact .coop__tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .coop-tab {
    border-left: 0;
    border-top: 3px solid transparent;
    padding: 24px 22px 26px;
  }

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

  .page-contact .direct-form {
    border-left: 1px solid var(--grid);
    padding-left: clamp(20px, 2.6vw, 34px);
  }

  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-tab,
  .page-contact .coop-panel,
  .page-contact .field__input,
  .page-contact .prep-item {
    transition: none;
  }
}