.page-contact {
  --pc-card-pad: 24px;
  --pc-sticky-top: 88px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 40px 0 56px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 36px;
  align-items: start;
}

.page-contact .contact-hero__lead h1 {
  margin: 14px 0 0;
  font-size: 36px;
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white-100);
}

.page-contact .contact-hero__lead .lede {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver-200);
  max-width: var(--measure);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-700);
  max-width: 34em;
}

.page-contact .contact-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-700);
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver-200);
}

.page-contact .contact-hero__facts .num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--green-500);
  min-width: 3.4em;
  letter-spacing: -0.01em;
}

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

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

/* ---------- 主分区：合作方向 + 联络卡 ---------- */
.page-contact .contact-main {
  padding: 64px 0 72px;
  border-top: 1px solid var(--line-700);
}

.page-contact .contact-main .section__head,
.page-contact .contact-hours .section__head,
.page-contact .contact-flow .section__head,
.page-contact .contact-faq .section__head {
  margin-bottom: 36px;
}

.page-contact .contact-main .section__title,
.page-contact .contact-hours .section__title,
.page-contact .contact-flow .section__title,
.page-contact .contact-faq .section__title {
  font-size: 28px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white-100);
  margin: 10px 0 0;
}

.page-contact .contact-layout {
  display: grid;
  gap: 40px;
  align-items: start;
}

/* 合作方向条目 */
.page-contact .track {
  border-top: 1px solid var(--line-700);
}

.page-contact .track:last-of-type {
  border-bottom: 1px solid var(--line-700);
}

.page-contact .track__summary {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 26px;
  grid-template-areas:
    "idx title mark"
    "idx sub mark";
  gap: 4px 12px;
  align-items: start;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .track__summary:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 2px;
}

.page-contact .track__idx {
  grid-area: idx;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--silver-500);
  padding-top: 4px;
}

.page-contact .track__title {
  grid-area: title;
  margin: 0;
  font-size: 18px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--white-100);
  word-break: break-word;
}

.page-contact .track__sub {
  grid-area: sub;
  font-size: 14px;
  line-height: 1.6;
  color: var(--silver-500);
}

.page-contact .track__mark {
  grid-area: mark;
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-contact .track__mark::before,
.page-contact .track__mark::after {
  content: "";
  position: absolute;
  background: var(--green-500);
}

.page-contact .track__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-contact .track__mark::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
  transition: transform var(--ease);
}

.page-contact .track[open] .track__mark::after {
  transform: scaleY(0);
}

.page-contact .track[open] .track__title {
  color: var(--green-300);
}

.page-contact .track__body {
  padding: 0 0 26px 56px;
}

.page-contact .track__row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--line-700);
}

.page-contact .track__key {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--green-500);
}

.page-contact .track__val {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver-200);
  max-width: var(--measure);
}

.page-contact .track__figure {
  margin: 28px 0;
}

/* 联络卡 */
.page-contact .contact-layout__side {
  min-width: 0;
}

.page-contact .contact-card {
  background: var(--ink-800);
  border: 1px solid var(--line-700);
  border-left: 3px solid var(--green-500);
  padding: 28px var(--pc-card-pad);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__title {
  margin: 10px 0 0;
  font-size: 22px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--white-100);
}

.page-contact .contact-card__hint {
  margin: 10px 0 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver-500);
}

.page-contact .contact-card__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--line-700);
}

.page-contact .contact-card__key {
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--silver-500);
}

.page-contact .contact-card__val {
  font-size: 16px;
  line-height: 1.6;
  color: var(--white-100);
  user-select: all;
  -webkit-user-select: all;
  word-break: break-word;
}

.page-contact .contact-card__val--mail {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--green-300);
}

.page-contact .contact-card__row .num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .contact-card__val--addr {
  font-size: 15px;
  color: var(--silver-200);
}

.page-contact .contact-card__hours {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--green-900);
  font-size: 14px;
  color: var(--silver-200);
}

.page-contact .contact-card__hours .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  color: var(--amber-500);
}

/* ---------- 受理时间 ---------- */
.page-contact .contact-hours {
  padding: 64px 0 72px;
  border-top: 1px solid var(--line-700);
  background: var(--green-900);
}

.page-contact .hours-grid {
  display: grid;
  gap: 28px;
}

.page-contact .hours-grid__text p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver-200);
  max-width: var(--measure);
}

.page-contact .hours-grid__text p:last-child {
  margin-bottom: 0;
}

.page-contact .hours-grid__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--green-500);
}

.page-contact .hours-grid__list li {
  padding: 9px 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver-200);
}

.page-contact .hours-grid__list li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  background: var(--green-500);
  vertical-align: middle;
}

.page-contact .hours-scale {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
}

.page-contact .hours-scale__end {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--white-100);
  flex: none;
}

.page-contact .hours-scale__rail {
  flex: 1 1 auto;
  height: 9px;
  background-image: repeating-linear-gradient(
    to right,
    var(--silver-500) 0,
    var(--silver-500) 1px,
    transparent 1px,
    transparent 9px
  );
  border-bottom: 1px solid var(--line-700);
}

.page-contact .hours-scale__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver-500);
}

/* ---------- 合作流程 ---------- */
.page-contact .contact-flow {
  padding: 64px 0 72px;
  border-top: 1px solid var(--line-700);
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 28px;
}

.page-contact .flow__step {
  position: relative;
  padding-top: 24px;
  border-top: 1px solid var(--line-700);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--orange-500);
}

.page-contact .flow__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--white-100);
}

.page-contact .flow__idx {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-500);
}

.page-contact .flow__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver-200);
  max-width: 30em;
}

/* ---------- 常见问题 ---------- */
.page-contact .contact-faq {
  padding: 64px 0 88px;
  border-top: 1px solid var(--line-700);
}

.page-contact .faq-list {
  border-top: 1px solid var(--line-700);
}

.page-contact .faq {
  border-bottom: 1px solid var(--line-700);
}

.page-contact .faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--white-100);
}

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

.page-contact .faq__question:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 2px;
}

.page-contact .faq__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-contact .faq__mark::before,
.page-contact .faq__mark::after {
  content: "";
  position: absolute;
  background: var(--green-500);
}

.page-contact .faq__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-contact .faq__mark::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
  transition: transform var(--ease);
}

.page-contact .faq[open] .faq__mark::after {
  transform: scaleY(0);
}

.page-contact .faq[open] .faq__question {
  color: var(--green-300);
}

.page-contact .faq__answer {
  padding: 0 34px 22px 0;
}

.page-contact .faq__answer p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver-200);
  max-width: var(--measure);
}

/* ---------- 尾部指向 ---------- */
.page-contact .contact-tail {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line-700);
}

.page-contact .contact-tail p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver-200);
  max-width: var(--measure);
}

.page-contact .contact-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 600px) {
  .page-contact .contact-hero__lead h1 {
    font-size: 44px;
  }

  .page-contact .track__body {
    padding-left: 56px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 28px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 56px 0 80px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
  }

  .page-contact .contact-hero__lead h1 {
    font-size: 52px;
  }

  .page-contact .contact-hero__figure {
    margin-top: 28px;
  }

  .page-contact .hours-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-main {
    padding: 80px 0 88px;
  }

  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(300px, 1fr);
    gap: 56px;
  }

  .page-contact .contact-card {
    position: sticky;
    top: var(--pc-sticky-top);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .track__mark::after,
  .page-contact .faq__mark::after {
    transition: none;
  }
}