.page-contact {
  --ct-shell-gap: 20px;
  background: var(--ink);
  color: var(--white);
  padding-bottom: 88px;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-head {
  position: relative;
  padding-top: 26px;
  padding-bottom: 52px;
  background:
    linear-gradient(112deg, transparent 0 56%, rgba(242, 194, 48, 0.075) 56% 100%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-head__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: end;
  margin-top: 26px;
}

.page-contact .ct-head__title {
  margin: 12px 0 18px;
  font-size: clamp(30px, 6vw, 54px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .ct-head__title::after {
  content: "";
  display: block;
  width: 68px;
  height: 4px;
  margin-top: 20px;
  background: var(--yellow);
}

.page-contact .ct-head__lede {
  max-width: 36em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

.page-contact .ct-head__media {
  margin: 0;
}

.page-contact .ct-head__media img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 联系方式横带 ---------- */
.page-contact .ct-band {
  background: var(--char);
  border-bottom: 3px solid var(--yellow);
}

.page-contact .ct-band__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .ct-band__cell {
  padding: 26px 0 30px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-band__cell:last-child {
  border-bottom: 0;
}

.page-contact .ct-band__value {
  margin: 10px 0 10px;
  font-family: var(--mono);
  font-size: clamp(15px, 1.35vw, 19px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .ct-band__value--addr {
  font-size: clamp(14px, 1.15vw, 17px);
}

.page-contact .ct-band__note {
  margin: 0;
  max-width: 30em;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 章节通用 ---------- */
.page-contact .section {
  margin-top: 72px;
  padding-top: 52px;
  border-top: 1px solid var(--line);
}

.page-contact .section:first-of-type {
  margin-top: 64px;
}

.page-contact .section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-contact .section__index {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--yellow);
  padding: 3px 8px;
}

.page-contact .section__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.25;
  color: var(--white);
}

.page-contact .lede {
  max-width: 42em;
  margin: 0 0 26px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 通道表 ---------- */
.page-contact .ct-channels-wrap {
  margin-top: 6px;
}

.page-contact .ct-channels th[scope="row"] {
  text-align: left;
  font-weight: 700;
  color: var(--white);
  vertical-align: top;
}

.page-contact .ct-channels td {
  color: var(--gray);
  line-height: 1.7;
  vertical-align: top;
}

/* ---------- 咨询准备两栏 ---------- */
.page-contact .ct-prep {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.page-contact .ct-prep__col {
  display: grid;
  gap: 26px;
  align-content: start;
}

.page-contact .ct-prep__media {
  margin: 0;
}

.page-contact .ct-prep__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .ct-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-checklist__item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-checklist__key {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--yellow);
  padding-top: 3px;
}

.page-contact .ct-checklist__val {
  font-size: 14px;
  line-height: 1.75;
  color: var(--white);
}

/* ---------- 邮件写法骨架 ---------- */
.page-contact .ct-sheet {
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--yellow);
  padding: 22px 22px 24px;
}

.page-contact .ct-sheet__title {
  margin: 8px 0 18px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-contact .ct-sheet__fields {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-sheet__field {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-sheet__field--active {
  border-bottom-color: var(--yellow);
}

.page-contact .ct-sheet__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gray);
  align-self: center;
}

.page-contact .ct-sheet__value {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  align-self: center;
  overflow-wrap: anywhere;
}

.page-contact .ct-sheet__hint {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 引用申请 ---------- */
.page-contact .ct-cite {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-cite__item {
  background: var(--panel);
  padding: 22px 20px 24px;
}

.page-contact .ct-cite__item h3 {
  margin: 14px 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-cite__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .ct-apply {
  margin-top: 28px;
  padding-left: 20px;
  border-left: 3px solid var(--cyan);
}

.page-contact .ct-apply__list {
  margin: 12px 0 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--white);
}

.page-contact .ct-apply__note {
  margin: 16px 0 0;
  max-width: 46em;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 勘误 ---------- */
.page-contact .ct-errata {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-contact .ct-errata__name {
  margin: 0 0 12px;
  padding-left: 14px;
  border-left: 3px solid var(--red);
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-errata__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .ct-errata__list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-contact .ct-errata__foot {
  margin: 24px 0 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 处理顺序 ---------- */
.page-contact .ct-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-flow__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 180ms ease;
}

.page-contact .ct-flow__idx {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--yellow);
  line-height: 1.5;
}

.page-contact .ct-flow__name {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-flow__desc {
  margin: 0;
  max-width: 52em;
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray);
}

.page-contact .ct-archive {
  margin-top: 32px;
  padding: 24px 22px 26px;
  background: var(--char);
  border-left: 3px solid var(--yellow);
}

.page-contact .ct-archive__name {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-archive__text {
  margin: 0 0 12px;
  max-width: 54em;
  font-size: 14px;
  line-height: 1.82;
  color: var(--gray);
}

.page-contact .ct-archive__text:last-child {
  margin-bottom: 0;
}

.page-contact .ct-link {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: var(--yellow);
  text-underline-offset: 3px;
}

.page-contact .ct-link:hover,
.page-contact .ct-link:focus-visible {
  color: var(--yellow);
}

.page-contact .ct-flow__item:hover {
  background: var(--panel);
}

/* ---------- 断点 ---------- */
@media (max-width: 560px) {
  .page-contact .ct-channels {
    font-size: 13px;
  }

  .page-contact .ct-channels th,
  .page-contact .ct-channels td {
    padding: 10px 8px;
  }

  .page-contact .ct-sheet__field,
  .page-contact .ct-checklist__item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-contact .ct-flow__item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
  }
}

@media (min-width: 700px) {
  .page-contact .ct-cite {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-band__grid {
    grid-template-columns: minmax(0, 1.34fr) minmax(0, 1fr) minmax(0, 1.14fr);
  }

  .page-contact .ct-band__cell {
    padding: 32px 28px 36px;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-contact .ct-band__cell:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-contact .ct-band__cell:last-child {
    padding-right: 0;
  }

  .page-contact .ct-errata {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
  }
}

@media (min-width: 1000px) {
  .page-contact .ct-head__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 56px;
  }
}

@media (min-width: 1040px) {
  .page-contact .ct-prep {
    grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr);
    gap: 56px;
  }
}