.page-contact {
  --contact-cut: 18px;
  --contact-tint: rgba(34, 211, 238, 0.06);
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(24px, 4vw, 44px);
}

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

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

.page-contact .contact-hero__copy h1 {
  margin: 14px 0 18px;
  max-width: 16ch;
}

.page-contact .contact-hero__copy .t-lead {
  max-width: 54ch;
}

.page-contact .contact-hero__channels {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .contact-hero__pill {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(34, 211, 238, 0.08), transparent 62%);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  color: var(--white);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .contact-hero__pill .t-mono {
  font-size: 14px;
  color: var(--ice);
  letter-spacing: 0.04em;
}

.page-contact .contact-hero__pill:hover,
.page-contact .contact-hero__pill:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

.page-contact .contact-hero__media {
  width: 100%;
  min-width: 0;
}

/* ---------- 优先邮件 ---------- */
.page-contact .contact-channel__head {
  max-width: 68ch;
  margin-bottom: clamp(22px, 4vw, 42px);
}

.page-contact .contact-channel__head .section-num {
  display: block;
  margin-bottom: 10px;
}

.page-contact .contact-channel__head .t-dim {
  margin-top: 12px;
}

.page-contact .contact-channel__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .mail-priority {
  padding: clamp(22px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-contact .mail-priority__top {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-contact .mail-priority__label {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-contact .mail-priority__value {
  margin: 0;
  font-size: clamp(19px, 3.2vw, 30px);
  line-height: 1.25;
  color: var(--ice);
  word-break: break-all;
  overflow-wrap: anywhere;
}

.page-contact .mail-priority__note {
  margin: 6px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--orange);
  background: rgba(255, 138, 61, 0.09);
  color: var(--white);
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .mail-priority__list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--slate);
}

.page-contact .mail-priority__list li {
  position: relative;
  padding-left: 20px;
}

.page-contact .mail-priority__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 坐标面板 ---------- */
.page-contact .coord-panel {
  padding: clamp(22px, 3vw, 34px);
  position: relative;
  min-width: 0;
}

.page-contact .coord-panel__coords {
  position: absolute;
  right: 18px;
  top: 14px;
  display: flex;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--line);
  letter-spacing: 0.06em;
}

.page-contact .coord-panel .t-h3 {
  margin: 0 0 10px;
}

.page-contact .coord-panel > .t-dim {
  margin: 0 0 20px;
  font-size: 14px;
}

.page-contact .coord-list {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-contact .coord-list__item {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  min-width: 0;
}

.page-contact .coord-list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 7px;
}

.page-contact .coord-list dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

/* ---------- 合作流程 ---------- */
.page-contact .contact-coop__head {
  max-width: 68ch;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-contact .contact-coop__head .section-num {
  display: block;
  margin-bottom: 10px;
}

.page-contact .contact-coop__head .t-dim {
  margin-top: 12px;
}

.page-contact .contact-coop__grid {
  gap: 14px;
}

.page-contact .contact-coop__item {
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .contact-coop__item[open] {
  border-left-color: var(--cyan);
}

.page-contact .contact-coop__item summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-contact .contact-coop__item summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-coop__item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-contact .contact-coop__item .accordion-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 响应时间 ---------- */
.page-contact .contact-response__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
}

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

.page-contact .contact-response__main .section-num {
  display: block;
  margin-bottom: 10px;
}

.page-contact .contact-response__main > p {
  margin: 12px 0 0;
  max-width: 62ch;
}

.page-contact .contact-response__stats {
  margin-top: clamp(20px, 3vw, 30px);
  flex-wrap: wrap;
}

.page-contact .contact-response__stats .stat {
  min-width: 120px;
}

.page-contact .prep-list {
  padding: clamp(20px, 3vw, 30px);
  min-width: 0;
}

.page-contact .prep-list .t-h3 {
  margin: 0 0 14px;
}

.page-contact .prep-list__items {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .prep-list__items li {
  position: relative;
  padding-left: 20px;
  border-bottom: 1px solid rgba(30, 42, 90, 0.6);
  padding-bottom: 12px;
}

.page-contact .prep-list__items li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .prep-list__items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

/* ---------- 备案条 ---------- */
.page-contact .contact-filing {
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .contact-filing__bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: clamp(20px, 3vw, 28px) clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(34, 211, 238, 0.07), transparent 55%),
    var(--ink-800);
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}

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

.page-contact .contact-filing__cell .eyebrow {
  display: block;
  margin-bottom: 8px;
}

.page-contact .contact-filing__cell p {
  margin: 0;
  font-size: 15px;
  color: var(--ice);
  word-break: break-all;
  overflow-wrap: anywhere;
}

/* ---------- 咨询前提示 ---------- */
.page-contact .contact-prep__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

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

.page-contact .contact-prep__copy > p {
  margin: 14px 0 0;
  max-width: 62ch;
}

.page-contact .contact-prep__copy .btn-row {
  margin-top: clamp(20px, 3vw, 28px);
  flex-wrap: wrap;
}

.page-contact .contact-prep__media {
  width: 100%;
  min-width: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-filing__bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 76px);
  }

  .page-contact .contact-channel__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-contact .coord-panel {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }

  .page-contact .contact-response__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }

  .page-contact .contact-prep__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-channel__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__pill,
  .page-contact .contact-coop__item {
    transition: none;
  }

  .page-contact .contact-hero__pill:hover,
  .page-contact .contact-hero__pill:focus-visible {
    transform: none;
  }
}