.page-contact {
  --ct-gap: clamp(20px, 3vw, 32px);
  --ct-radius: 4px;
  padding-bottom: clamp(40px, 8vw, 96px);
}

.page-contact .breadcrumb {
  padding-top: clamp(20px, 4vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero__grid {
  display: grid;
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-hero__lead h1 {
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.14;
  letter-spacing: 0.04em;
  margin: 10px 0 18px;
  max-width: 16em;
}

.page-contact .ct-hero__lead .lede {
  color: var(--soft);
  max-width: 36em;
}

.page-contact .ct-hero__hint {
  margin-top: 16px;
  color: var(--stone);
  font-size: 14px;
  line-height: 1.7;
  border-left: 2px solid var(--line);
  padding-left: 14px;
}

.page-contact .ct-quick {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  padding: clamp(18px, 3vw, 26px);
  position: relative;
}

.page-contact .ct-quick::before {
  content: "";
  position: absolute;
  inset: 6px -6px -6px 6px;
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  z-index: -1;
  opacity: .5;
}

.page-contact .ct-quick__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
  text-transform: uppercase;
  margin: 0 0 16px;
}

.page-contact .ct-quick__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 12px 0;
  border-top: 1px dashed var(--line);
}

.page-contact .ct-quick__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--stone);
  flex: 0 0 auto;
}

.page-contact .ct-quick__val {
  color: var(--white);
  font-size: 15px;
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-contact .ct-quick__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--stone);
}

.page-contact .ct-copied {
  font-size: 12px;
  color: var(--cyan);
  font-family: var(--font-mono);
  min-height: 1em;
}

.page-contact .copy-btn {
  flex: 0 0 auto;
}

/* ---------- 视觉区 ---------- */
.page-contact .ct-visual__title {
  font-size: clamp(20px, 3.4vw, 26px);
  letter-spacing: .04em;
  margin: 0 0 20px;
  color: var(--soft);
}

.page-contact .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  background: var(--ink-deep);
}

.page-contact .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 通用小节头 ---------- */
.page-contact .ct-head {
  max-width: 44em;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .ct-head h2 {
  font-size: clamp(24px, 4.6vw, 38px);
  letter-spacing: .04em;
  line-height: 1.2;
  margin: 10px 0 14px;
}

.page-contact .ct-head__lede {
  color: var(--soft);
  margin: 0;
}

/* ---------- 三条通道 ---------- */
.page-contact .ct-channels {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-card {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-radius: var(--ct-radius);
}

.page-contact .ct-card--paper {
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--paper-ink);
}

.page-contact .ct-card--paper .card__title {
  color: var(--paper-ink);
}

.page-contact .ct-card--paper .ct-card__fit,
.page-contact .ct-card--paper .ct-card__list li {
  color: #3A4A52;
}

.page-contact .ct-card .label--corner {
  position: static;
  align-self: flex-start;
}

.page-contact .ct-card__fit {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--soft);
}

.page-contact .ct-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .ct-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--soft);
}

.page-contact .ct-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-contact .ct-card--paper .ct-card__list li::before {
  background: var(--clay);
}

.page-contact .ct-card__action {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-contact .ct-card__contact {
  font-size: 14px;
  color: var(--white);
  overflow-wrap: anywhere;
  flex: 1 1 100%;
}

.page-contact .ct-card__addr {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(11, 27, 39, .25);
  font-size: 14px;
  color: var(--paper-ink);
}

/* ---------- 邮件写法 ---------- */
.page-contact .ct-mail__grid {
  display: grid;
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-mail__body h2 {
  font-size: clamp(24px, 4.6vw, 38px);
  letter-spacing: .04em;
  line-height: 1.2;
  margin: 10px 0 16px;
}

.page-contact .ct-mail__body > p {
  color: var(--soft);
  max-width: 38em;
}

.page-contact .ct-mail__sub {
  font-size: clamp(17px, 2.6vw, 20px);
  letter-spacing: .05em;
  margin: 32px 0 10px;
  color: var(--white);
}

.page-contact .ct-mail__hint {
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
  margin: 0 0 12px;
}

.page-contact .ct-mail__code {
  display: block;
  margin: 0;
  padding: 16px 18px;
  background: var(--ink-deep);
  border: 1px solid var(--cyan);
  border-left-width: 3px;
  border-radius: var(--ct-radius);
  color: var(--cyan);
  font-size: 13px;
  line-height: 1.9;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  letter-spacing: .02em;
}

.page-contact .ct-mail__code--block {
  border-color: var(--line);
  color: var(--soft);
  border-left-color: var(--orange);
}

.page-contact .ct-mail__points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .ct-mail__points li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--soft);
}

.page-contact .ct-mail__points strong {
  color: var(--cyan);
  font-weight: 700;
}

.page-contact .ct-mail__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

.page-contact .ct-fold {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  background: var(--panel);
}

.page-contact .ct-fold .fold__head {
  cursor: pointer;
  padding: 16px 18px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .03em;
  list-style: none;
}

.page-contact .ct-fold .fold__head::-webkit-details-marker {
  display: none;
}

.page-contact .ct-fold .fold__head::after {
  content: "+";
  float: right;
  color: var(--orange);
  font-family: var(--font-mono);
}

.page-contact .ct-fold[open] .fold__head::after {
  content: "–";
}

.page-contact .ct-fold .fold__body {
  padding: 0 18px 20px;
}

.page-contact .ct-fold__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .ct-side-card {
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--ct-radius);
}

.page-contact .ct-side-card .paper__title {
  margin: 14px 0 12px;
}

.page-contact .ct-side-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.78;
  color: #3A4A52;
}

.page-contact .ct-side-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: #5A666D;
  border-top: 1px dashed rgba(11, 27, 39, .25);
  padding-top: 14px;
}

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

/* ---------- 响应时段 ---------- */
.page-contact .ct-response__grid {
  display: grid;
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-response__body h2 {
  font-size: clamp(24px, 4.6vw, 38px);
  letter-spacing: .04em;
  line-height: 1.2;
  margin: 10px 0 16px;
}

.page-contact .ct-response__body > p {
  color: var(--soft);
  max-width: 38em;
}

.page-contact .ct-band {
  margin: 28px 0 6px;
  padding: 20px 18px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
}

.page-contact .ct-band__track {
  position: relative;
  height: 16px;
  background: var(--ink-deep);
  border: 1px solid var(--line);
  border-radius: var(--pill);
  overflow: hidden;
}

.page-contact .ct-band__fill {
  position: absolute;
  left: 37.5%;
  width: 37.5%;
  top: 0;
  bottom: 0;
  background: linear-gradient(90deg, var(--orange), #FFB37A);
}

.page-contact .ct-band__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 11px;
  color: var(--stone);
}

.page-contact .ct-band__legend {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--soft);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .ct-band__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  flex: 0 0 auto;
}

.page-contact .ct-response__facts {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .ct-response__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .ct-num {
  color: var(--orange);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  flex: 0 0 auto;
}

.page-contact .ct-fact {
  font-size: 14px;
  line-height: 1.7;
  color: var(--soft);
}

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

/* ---------- 清单 ---------- */
.page-contact .ct-check__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-check__item {
  padding: clamp(20px, 3vw, 26px);
  border-radius: var(--ct-radius);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-contact .ct-check__item .label {
  align-self: flex-start;
}

.page-contact .ct-check__item .paper__title {
  margin: 6px 0 4px;
}

.page-contact .ct-check__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: #3A4A52;
}

/* ---------- 地址 ---------- */
.page-contact .ct-address__grid {
  display: grid;
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-address__body h2 {
  font-size: clamp(24px, 4.6vw, 38px);
  letter-spacing: .04em;
  line-height: 1.2;
  margin: 10px 0 16px;
}

.page-contact .ct-address__body > p {
  color: var(--soft);
  max-width: 38em;
}

.page-contact .ct-address__card {
  display: grid;
  gap: 8px;
  margin: 26px 0 0;
  padding: clamp(20px, 3vw, 26px);
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  font-style: normal;
  box-shadow: 8px 8px 0 rgba(29, 76, 110, .55);
}

.page-contact .ct-address__label {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--clay);
  font-family: var(--font-mono);
}

.page-contact .ct-address__val {
  font-size: clamp(17px, 2.6vw, 21px);
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.5;
}

.page-contact .ct-address__row {
  font-size: 14px;
  color: #3A4A52;
  overflow-wrap: anywhere;
}

.page-contact .ct-address__notes {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .ct-address__notes li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--soft);
}

.page-contact .ct-address__notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

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

.page-contact .ct-side-card.card {
  padding: clamp(20px, 3vw, 26px);
  border-radius: var(--ct-radius);
}

.page-contact .ct-address__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-contact .ct-side-card--cta {
  background: var(--ink-deep);
  border-color: var(--orange);
}

.page-contact .ct-side-card--cta .btn--primary {
  margin-top: 16px;
  align-self: flex-start;
}

/* ---------- 结尾 ---------- */
.page-contact .ct-outro {
  border-top: 1px solid var(--line);
}

.page-contact .ct-outro__title {
  font-size: clamp(22px, 4vw, 32px);
  letter-spacing: .04em;
  margin: 0 0 14px;
}

.page-contact .ct-outro__text {
  color: var(--soft);
  margin: 0 0 24px;
}

.page-contact .ct-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 719px) {
  .page-contact .ct-card__action {
    align-items: stretch;
  }

  .page-contact .copy-btn {
    width: 100%;
    justify-content: center;
  }

  .page-contact .ct-band__scale {
    font-size: 10px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .ct-quick {
    margin-top: 8px;
  }

  .page-contact .ct-channels {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
    padding-bottom: 84px;
  }

  .page-contact .ct-card:nth-child(2) {
    margin-top: 40px;
  }

  .page-contact .ct-card:nth-child(3) {
    margin-top: 80px;
  }

  .page-contact .ct-mail__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-contact .ct-response__grid {
    grid-template-columns: 6fr 6fr;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-contact .ct-check__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .ct-check__item:nth-child(even) {
    margin-top: 28px;
  }

  .page-contact .ct-address__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-band__fill {
    background: var(--orange);
  }
}