.page-contact {
  --contact-gap: clamp(20px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(36px, 6vw, 80px) clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-contact .contact-hero__main h1 {
  margin: 10px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(30px, 5.2vw, 46px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--fg);
  max-width: 18em;
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--silver);
}

.page-contact .contact-hero__stats {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-hero__stats > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 14px;
  padding: 13px 18px;
  background: var(--panel);
}

.page-contact .contact-hero__stats > div:first-child {
  box-shadow: inset 3px 0 0 var(--green);
}

.page-contact .contact-hero__stats dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-contact .contact-hero__stats dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
}

/* ---------- 主体两栏 ---------- */
.page-contact .contact-body {
  padding-block: clamp(34px, 5vw, 64px);
}

.page-contact .contact-split {
  display: grid;
  gap: var(--contact-gap);
}

/* 左侧信息卡 */
.page-contact .contact-card {
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
}

.page-contact .contact-card__figure {
  margin: 0 0 20px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

.page-contact .contact-card__title {
  margin: 0 0 4px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--fg);
}

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

.page-contact .contact-list__item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-list__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-contact .contact-list__value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  word-break: break-word;
}

.page-contact .contact-list__use {
  font-size: 13px;
  line-height: 1.75;
  color: var(--stone);
}

.page-contact .contact-address {
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.page-contact .contact-address__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-contact .contact-address p {
  margin: 7px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--stone);
}

/* 在线时段刻度条 */
.page-contact .clockbar {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .clockbar__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-contact .clockbar__track {
  position: relative;
  height: 10px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}

.page-contact .clockbar__online {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(90deg, rgba(0, 196, 106, 0.42), var(--green));
  box-shadow: 0 0 14px rgba(0, 196, 106, 0.5);
}

.page-contact .clockbar__labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

.page-contact .contact-card__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.8;
  color: var(--stone);
}

/* 右侧内容块 */
.page-contact .contact-main {
  display: grid;
  gap: var(--contact-gap);
  align-content: start;
}

.page-contact .contact-block {
  padding: clamp(20px, 3vw, 30px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .contact-block--amber {
  background: linear-gradient(180deg, var(--amber-soft), transparent 55%), var(--panel);
  border-left: 2px solid var(--amber);
}

.page-contact .contact-block h2 {
  margin: 8px 0 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--fg);
}

.page-contact .contact-block__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.page-contact .contact-block__text--links {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--stone);
}

.page-contact .contact-block a,
.page-contact .coop-cta a {
  color: var(--green);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-contact .contact-block a:hover,
.page-contact .coop-cta a:hover {
  color: var(--fg);
}

.page-contact .eyebrow--amber {
  color: var(--amber);
}

.page-contact .eyebrow--amber::before {
  background: var(--amber);
}

/* 准备事项编号清单 */
.page-contact .step-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .step-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .step-list__no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green);
  padding-top: 2px;
}

/* 响应节奏表 */
.page-contact .sla-list {
  margin: 18px 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-contact .sla-list > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 12px 16px;
  background: var(--ink-2);
}

.page-contact .sla-list dt {
  font-size: 13px;
  color: var(--stone);
}

.page-contact .sla-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-coop {
  padding-block: clamp(34px, 5vw, 68px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-2), var(--ink) 65%);
}

.page-contact .contact-coop__figure {
  margin: 0 0 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 6;
  background: var(--panel);
}

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

.page-contact .contact-coop h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.page-contact .contact-coop__lead {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--silver);
}

.page-contact .coop-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.page-contact .coop-item {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--speed) var(--ease), border-color var(--speed) var(--ease), box-shadow var(--speed) var(--ease);
}

.page-contact .coop-item--green {
  border-top: 2px solid var(--green);
}

.page-contact .coop-item--violet {
  border-top: 2px solid var(--violet);
}

.page-contact .coop-item--amber {
  border-top: 2px solid var(--amber);
}

.page-contact .coop-item:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.36);
}

.page-contact .coop-item__head {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 18px 46px 16px 18px;
  background: none;
  border: 0;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.page-contact .coop-item__head:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -3px;
}

.page-contact .coop-item__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-contact .coop-item__name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--fg);
}

.page-contact .coop-item__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .coop-item__icon {
  position: absolute;
  top: 21px;
  right: 18px;
  width: 12px;
  height: 12px;
}

.page-contact .coop-item__icon::before,
.page-contact .coop-item__icon::after {
  content: "";
  position: absolute;
  background: var(--stone);
  transition: transform var(--speed) var(--ease), background var(--speed) var(--ease);
}

.page-contact .coop-item__icon::before {
  left: 0;
  right: 0;
  top: 5px;
  height: 2px;
}

.page-contact .coop-item__icon::after {
  top: 0;
  bottom: 0;
  left: 5px;
  width: 2px;
}

.page-contact .coop-item__head[aria-expanded="true"] .coop-item__icon::before {
  background: var(--green);
}

.page-contact .coop-item__head[aria-expanded="true"] .coop-item__icon::after {
  transform: scaleY(0);
}

.page-contact .coop-item__panel {
  display: grid;
  grid-template-rows: 0fr;
  visibility: hidden;
  transition: grid-template-rows 0.22s var(--ease), visibility 0.22s;
}

.page-contact .coop-item__panel[data-open] {
  grid-template-rows: 1fr;
  visibility: visible;
}

.page-contact .coop-item__clamp {
  overflow: hidden;
  min-height: 0;
}

.page-contact .coop-item__body {
  padding: 16px 18px 22px;
  border-top: 1px solid var(--line);
}

.page-contact .coop-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .coop-steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .coop-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--stone);
}

.page-contact .coop-steps__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--silver);
}

.page-contact .coop-cta {
  margin: 34px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.9;
  color: var(--stone);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-hero__stats > div {
    display: grid;
    justify-content: start;
    gap: 6px;
  }

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

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    align-items: end;
    gap: 40px;
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-contact .contact-card {
    position: sticky;
    top: 92px;
  }

  .page-contact .sla-list > div {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1100px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .contact-coop__figure {
    aspect-ratio: 21 / 7;
  }
}