.page-contact {
  --ct-hair: rgba(31, 75, 57, 0.9);
  --ct-hair-soft: rgba(31, 75, 57, 0.42);
  --ct-panel: rgba(14, 42, 32, 0.62);
  --ct-pad: clamp(20px, 4vw, 40px);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact .ct-frame {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--ct-pad) clamp(56px, 9vw, 110px);
}

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

.page-contact .ob-section + .ob-section {
  margin-top: clamp(44px, 6vw, 88px);
}

.page-contact .ob-section__head {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-contact .ob-section__title {
  letter-spacing: -0.03em;
}

.page-contact .ct-sub {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  max-width: 44ch;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(28px, 5vw, 68px) 0 clamp(24px, 4vw, 46px);
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--ct-hair-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ct-hair-soft) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.62), transparent 78%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.62), transparent 78%);
  pointer-events: none;
}

.page-contact .ct-hero .ob-crumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(18px, 3vw, 34px);
}

.page-contact .ct-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .ct-hero__title {
  margin: 12px 0 0;
  font-size: clamp(38px, 8vw, 68px);
}

.page-contact .ct-hero__text {
  margin: 18px 0 0;
  max-width: 38ch;
  font-size: 16px;
  color: var(--text);
}

.page-contact .ct-hero__stats {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 16px 18px;
  border: 1px solid var(--ct-hair);
  border-radius: var(--radius-md);
  background: var(--ct-panel);
}

.page-contact .ct-hero__stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ct-hair-soft);
}

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

.page-contact .ct-hero__stat dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .ct-hero__stat dd {
  margin: 0;
  color: var(--text);
}

.page-contact .ct-hero__anno {
  display: none;
}

/* ---------- 联络渠道 ---------- */
.page-contact .ct-rows {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-row__idx {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.page-contact .ct-row__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .ct-row__value {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(17px, 2.6vw, 24px);
  letter-spacing: -0.02em;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .ct-row__use {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .ct-row__use a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--edge);
  text-underline-offset: 3px;
}

/* ---------- 勘误格式 ---------- */
.page-contact .ct-errata .ob-grid {
  row-gap: clamp(26px, 4vw, 44px);
}

.page-contact .ct-lead {
  margin: 0 0 22px;
  max-width: 40ch;
  font-size: 16px;
  color: var(--text);
}

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

.page-contact .ct-check__item {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-check__box {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  border: 1px solid var(--edge);
  border-radius: 4px;
}

.page-contact .ct-check__box::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 2px;
  background: var(--red);
  opacity: 0.85;
}

.page-contact .ct-check__title {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .ct-check__item p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .ct-slug {
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px dashed var(--edge);
  border-radius: var(--radius-md);
  background: rgba(7, 19, 15, 0.6);
}

.page-contact .ct-slug code {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--red);
  overflow-wrap: anywhere;
}

.page-contact .ct-slug__note {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .ct-slug__note a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--edge);
  text-underline-offset: 3px;
}

.page-contact .ct-errata__side {
  align-self: start;
}

/* ---------- 回复时间 ---------- */
.page-contact .ct-shift__panel {
  display: grid;
  gap: 24px;
  padding: clamp(22px, 3vw, 36px);
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(31, 75, 57, 0.34), rgba(7, 19, 15, 0.62));
}

.page-contact .ct-shift__clock {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 12px;
}

.page-contact .ct-shift__clock .ob-num--xl {
  color: var(--red);
}

.page-contact .ct-shift__dash {
  font-family: var(--mono);
  font-size: 24px;
  color: var(--muted);
}

.page-contact .ct-shift__rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-shift__rules li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  color: var(--text);
}

.page-contact .ct-shift__rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--red);
}

/* ---------- 授权与合作 ---------- */
.page-contact .ct-license__lead {
  margin: 0 0 16px;
  max-width: 38ch;
  font-size: 17px;
  color: var(--text);
}

.page-contact .ct-license__text {
  margin: 0;
  max-width: 40ch;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .ct-license__text a,
.page-contact .ct-license__more a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

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

.page-contact .ct-license__list li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-license__k {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .ct-license__v {
  font-size: 14px;
  color: var(--text);
}

.page-contact .ct-license__more {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- 备案横条 ---------- */
.page-contact .ct-record {
  margin-top: clamp(48px, 7vw, 96px);
  padding-top: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--red);
}

.page-contact .ct-record__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .ct-record__title {
  margin: 8px 0 0;
}

.page-contact .ct-record__addr {
  margin: 18px 0 0;
  font-size: clamp(20px, 3.2vw, 30px);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.03em;
  color: var(--text);
}

.page-contact .ct-record__note {
  margin: 12px 0 0;
  max-width: 40ch;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .ct-record__icp {
  margin: 20px 0 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .ct-record__figure {
  align-self: end;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 780px) {
  .page-contact .ct-row {
    grid-template-columns: 44px minmax(0, 1fr) minmax(0, 1.12fr);
    align-items: baseline;
    gap: 26px;
    padding: 26px 0;
  }

  .page-contact .ct-record__grid {
    gap: 34px;
  }
}

@media (min-width: 880px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr) 40px;
    gap: 34px;
    align-items: end;
  }

  .page-contact .ct-hero__anno {
    display: block;
    justify-self: end;
  }

  .page-contact .ct-shift__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
    align-items: center;
    gap: 44px;
  }

  .page-contact .ct-record__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 44px;
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-hero__text {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-hero::before {
    opacity: 0.5;
  }
}