.page-contact {
  --ct-rule: var(--line-dark);
  --ct-rule-soft: var(--line-soft);
  background: var(--ink-980);
  color: var(--paper-100);
  overflow-x: hidden;
  padding-bottom: clamp(32px, 6vw, 72px);
}

.page-contact .ct-shell {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--edge);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  border-bottom: 1px solid var(--ct-rule);
  padding-block: clamp(20px, 4vw, 40px) clamp(24px, 5vw, 52px);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 56px);
  align-items: end;
  margin-top: clamp(22px, 4.5vw, 46px);
}

.page-contact .ct-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.95rem, 7.2vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  max-width: 17ch;
}

.page-contact .ct-hero__text {
  margin: clamp(16px, 2.5vw, 24px) 0 0;
  max-width: 58ch;
  font-size: clamp(0.88rem, 1.6vw, 1rem);
  line-height: 1.8;
  color: var(--silver-400);
}

.page-contact .ct-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ct-rule);
  border: 1px solid var(--ct-rule);
}

.page-contact .ct-hero__facts li {
  background: var(--ink-800);
  padding: clamp(14px, 2.4vw, 20px) clamp(14px, 2.4vw, 22px);
  display: grid;
  gap: 6px;
}

.page-contact .ct-hero__num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.2rem, 4vw, 1.85rem);
  letter-spacing: -0.01em;
  color: var(--orange);
}

.page-contact .ct-hero__cap {
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--silver-400);
}

/* ---------- 顶部横图 ---------- */

.page-contact .ct-banner {
  position: relative;
  margin: 0;
  border-bottom: 1px solid var(--ct-rule);
  background: var(--ink-800);
}

.page-contact .ct-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2000 / 700;
  object-fit: cover;
  opacity: 0.42;
  filter: saturate(0.62) contrast(1.06);
}

.page-contact .ct-banner__cap {
  position: absolute;
  left: var(--edge);
  bottom: 12px;
  right: var(--edge);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--silver-400);
  text-shadow: 0 1px 6px rgba(11, 22, 34, 0.9);
}

/* ---------- 章节标题 ---------- */

.page-contact .ct-sec-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-contact .ct-sec-index {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .ct-sec-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.32rem, 3.6vw, 2rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-contact .ct-sec-desc {
  margin: 0;
  max-width: 52ch;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--silver-400);
}

/* ---------- 双栏通道 ---------- */

.page-contact .ct-passage {
  padding-block: clamp(36px, 7vw, 88px);
}

.page-contact .ct-passage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 58px);
}

/* 联系卡片 */

.page-contact .ct-card {
  position: relative;
  background: var(--paper-100);
  color: var(--ink-980);
  padding: clamp(18px, 3vw, 26px);
  margin-bottom: clamp(18px, 3vw, 24px);
  border: 1px solid var(--ink-980);
  box-shadow: 7px 7px 0 -1px rgba(227, 217, 198, 0.42);
}

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

.page-contact .ct-card--urgent {
  background: var(--paper-200);
}

.page-contact .ct-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .ct-card__name {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 14px 0 6px;
  color: var(--ink-980);
}

.page-contact .ct-card__val {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.4vw, 1.4rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  word-break: break-all;
}

.page-contact .ct-card__note {
  margin: 0 0 18px;
  font-size: 0.83rem;
  line-height: 1.8;
  color: var(--ink-700);
}

.page-contact .ct-card__note a {
  color: var(--ink-980);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-contact .ct-card__note a:hover {
  color: var(--orange);
}

/* 复制按钮（仅本页作用域内覆盖） */

.page-contact .ct-copy {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 9px 15px;
  border: 1px solid currentColor;
  background: transparent;
  color: var(--ink-980);
  border-radius: 0;
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease;
}

.page-contact .ct-copy:hover {
  background: var(--ink-980);
  color: var(--paper-100);
}

.page-contact .ct-copy .copy-btn__hint {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  color: var(--red-print);
}

.page-contact .ct-copy:hover .copy-btn__hint {
  color: var(--cyan);
}

/* 准备清单 */

.page-contact .ct-prep {
  background: var(--ink-800);
  border: 1px solid var(--ct-rule);
  padding: clamp(18px, 3vw, 28px);
}

.page-contact .ct-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .ct-check__item {
  border-bottom: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-check__item:first-child {
  border-top: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-check label {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 2px;
  cursor: pointer;
  font-size: 0.86rem;
  line-height: 1.65;
}

.page-contact .ct-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .ct-check__box {
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  border: 1px solid var(--silver-600);
  position: relative;
  transition: background-color 0.14s ease, border-color 0.14s ease;
}

.page-contact .ct-check input:checked ~ .ct-check__box {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .ct-check input:checked ~ .ct-check__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink-980);
  border-bottom: 2px solid var(--ink-980);
  transform: rotate(42deg);
}

.page-contact .ct-check input:focus-visible ~ .ct-check__box {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .ct-check__label {
  color: var(--paper-100);
}

.page-contact .ct-prep__tip {
  margin: 18px 0 0;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--silver-400);
}

.page-contact .ct-prep__tip a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
}

/* 流程 */

.page-contact .ct-flow {
  margin-top: clamp(28px, 4.5vw, 44px);
}

.page-contact .ct-flow__title {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--silver-400);
  margin: 0 0 14px;
}

.page-contact .ct-flow__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-flow__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 15px 0;
  border-top: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-flow__list li:last-child {
  border-bottom: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-flow__no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--orange);
  padding-top: 3px;
  letter-spacing: 0.06em;
}

.page-contact .ct-flow__list p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--paper-100);
}

/* ---------- 响应时段（纸色区） ---------- */

.page-contact .ct-window {
  background: var(--paper-100);
  color: var(--ink-980);
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  padding-block: clamp(38px, 7vw, 84px);
}

.page-contact .ct-window .ct-sec-desc {
  color: var(--silver-600);
}

.page-contact .ct-window__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 28px);
}

.page-contact .ct-track {
  position: relative;
  border: 1px solid var(--ink-980);
  background: var(--paper-100);
  padding: clamp(20px, 3vw, 28px);
}

.page-contact .ct-track::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 44px;
  height: 4px;
  background: var(--cyan);
}

.page-contact .ct-track--urgent {
  background: var(--paper-200);
}

.page-contact .ct-track--urgent::before {
  background: var(--orange);
}

.page-contact .ct-track__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 9px;
  background: var(--ink-980);
  color: var(--paper-100);
}

.page-contact .ct-track--urgent .ct-track__tag {
  background: var(--orange);
}

.page-contact .ct-track__time {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.3rem, 4.6vw, 2.1rem);
  letter-spacing: -0.015em;
  margin: 16px 0 16px;
}

.page-contact .ct-track--urgent .ct-track__time {
  color: var(--orange);
}

.page-contact .ct-track ul {
  margin: 0;
  padding-left: 1.05em;
  display: grid;
  gap: 9px;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-contact .ct-track li::marker {
  color: var(--silver-600);
}

/* ---------- 站点信息 ---------- */

.page-contact .ct-site {
  padding-block: clamp(40px, 8vw, 96px);
}

.page-contact .ct-site__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4.5vw, 52px);
  align-items: start;
}

.page-contact .ct-meta {
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ct-rule);
  border: 1px solid var(--ct-rule);
}

.page-contact .ct-meta > div {
  background: var(--ink-800);
  padding: 14px clamp(14px, 2.2vw, 18px);
  display: grid;
  gap: 5px;
}

.page-contact .ct-meta dt {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--silver-600);
}

.page-contact .ct-meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.88rem, 2.4vw, 1rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--paper-100);
  word-break: break-all;
}

.page-contact .ct-site__note {
  margin: 0 0 20px;
  max-width: 56ch;
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--silver-400);
}

.page-contact .ct-site__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .ct-site__note a:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .ct-site .ct-copy {
  color: var(--paper-100);
}

.page-contact .ct-site .ct-copy:hover {
  background: var(--paper-100);
  color: var(--ink-980);
}

.page-contact .ct-site__map {
  margin: 0;
  border: 1px solid var(--ct-rule);
  background: var(--ink-800);
}

.page-contact .ct-site__map img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
  opacity: 0.82;
}

.page-contact .ct-site__map figcaption {
  padding: 11px clamp(12px, 2vw, 16px);
  border-top: 1px solid var(--ct-rule-soft);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--silver-400);
}

/* ---------- 后续入口 ---------- */

.page-contact .ct-links {
  border-top: 1px solid var(--ct-rule);
  padding-block: clamp(32px, 6vw, 68px);
}

.page-contact .ct-links__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  letter-spacing: -0.01em;
  margin: 0;
}

.page-contact .ct-links__list {
  list-style: none;
  margin: clamp(16px, 3vw, 26px) 0 0;
  padding: 0;
}

.page-contact .ct-links__list li {
  border-bottom: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-links__list li:first-child {
  border-top: 1px solid var(--ct-rule-soft);
}

.page-contact .ct-links__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 2px;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--paper-100);
  text-decoration: none;
  transition: color 0.16s ease, padding-left 0.16s ease;
}

.page-contact .ct-links__list a::after {
  content: "→";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-contact .ct-links__list a:hover {
  color: var(--cyan);
  padding-left: 10px;
}

.page-contact .ct-links__list a:hover::after {
  color: var(--cyan);
}

/* ---------- 页脚前收束刻度 ---------- */

.page-contact .ct-seal {
  position: relative;
  height: 16px;
  margin: 0 var(--edge);
  border-top: 1px solid var(--ct-rule);
}

.page-contact .ct-seal::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 5px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--silver-600) 0 1px,
    transparent 1px 26px
  );
  opacity: 0.55;
}

/* ---------- 中屏与桌面 ---------- */

@media (min-width: 720px) {
  .page-contact .ct-hero__facts {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .ct-window__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: 1.25fr 0.75fr;
  }

  .page-contact .ct-passage__grid {
    grid-template-columns: 1.08fr 0.92fr;
  }

  .page-contact .ct-site__grid {
    grid-template-columns: 1fr 1.05fr;
  }

  .page-contact .ct-left {
    position: relative;
  }

  .page-contact .ct-right {
    padding-top: clamp(4px, 1vw, 12px);
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: 1.35fr 0.65fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-copy,
  .page-contact .ct-check__box,
  .page-contact .ct-links__list a {
    transition: none;
  }
}