.page-contact {
  --ct-axis-w: 1080px;
  background: var(--sand);
  color: var(--ink);
  overflow-x: clip;
}

.page-contact .shell.ct-axis {
  max-width: var(--ct-axis-w);
}

/* ============ 首屏 ============ */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--night);
  color: var(--sand);
  padding: clamp(72px, 9vw, 124px) 0 clamp(52px, 6.5vw, 92px);
}

.page-contact .ct-hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .ct-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .26;
  filter: saturate(.7);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(13, 26, 43, .84) 0%, rgba(13, 26, 43, .93) 58%, var(--night) 100%);
}

.page-contact .ct-hero-inner {
  position: relative;
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-contact .ct-hero .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 13px;
  letter-spacing: .04em;
}

.page-contact .ct-hero .crumb {
  color: rgba(244, 238, 226, .58);
  text-decoration: none;
}

.page-contact .ct-hero .crumb:hover {
  color: var(--gold-light);
}

.page-contact .ct-hero .crumb:last-of-type {
  color: var(--gold-light);
}

.page-contact .ct-hero .crumb-sep {
  color: rgba(244, 238, 226, .3);
}

.page-contact .ct-hero-copy {
  display: grid;
  gap: 16px;
}

.page-contact .ct-hero h1 {
  margin: 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 70px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--sand);
}

.page-contact .ct-hero .lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.85;
  color: rgba(244, 238, 226, .78);
}

.page-contact .ct-lines {
  display: grid;
  gap: 1px;
  margin-top: clamp(8px, 1.5vw, 18px);
  border: 1px solid rgba(199, 188, 168, .22);
  border-radius: var(--radius);
  background: rgba(199, 188, 168, .22);
  overflow: hidden;
}

.page-contact .ct-line {
  display: grid;
  gap: 6px;
  padding: clamp(20px, 2.4vw, 30px);
  background: rgba(13, 26, 43, .74);
}

.page-contact .ct-line-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-line-value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 27px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--sand);
  word-break: break-all;
}

.page-contact .ct-line-note {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 238, 226, .6);
}

@media (min-width: 760px) {
  .page-contact .ct-lines {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============ 通道区 ============ */
.page-contact .ct-channels {
  background: var(--sand);
  padding: clamp(64px, 8vw, 112px) 0 clamp(72px, 9vw, 128px);
}

.page-contact .ct-head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(36px, 5vw, 64px);
}

.page-contact .ct-head h2 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 46px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .ct-head-lead {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .ct-deck {
  display: grid;
  gap: 16px;
  align-items: start;
}

.page-contact .ct-tab {
  position: relative;
  display: grid;
  gap: 10px;
  width: 100%;
  padding: 26px 22px 28px;
  text-align: left;
  border: 0;
  border-radius: var(--radius);
  color: #FBF7EF;
  font-family: var(--font-body);
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.page-contact .ct-tab--a {
  background: linear-gradient(155deg, var(--danxia) 0%, var(--danxia-deep) 100%);
}

.page-contact .ct-tab--b {
  background: linear-gradient(155deg, var(--pitch-light) 0%, var(--pitch) 100%);
}

.page-contact .ct-tab--c {
  background: linear-gradient(155deg, var(--indigo) 0%, var(--night) 100%);
}

.page-contact .ct-tab-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--gold-light);
}

.page-contact .ct-tab-name {
  font-family: var(--font-display);
  font-size: clamp(19px, 1.7vw, 22px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #FBF7EF;
}

.page-contact .ct-tab-desc {
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 238, 226, .78);
}

.page-contact .ct-tab-meta {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold-light);
}

.page-contact .ct-tab[aria-selected="true"] {
  box-shadow: inset 0 0 0 2px var(--gold-light), var(--shadow-soft);
}

.page-contact .ct-tab[aria-selected="false"] {
  opacity: .66;
  filter: saturate(.72);
}

.page-contact .ct-tab:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 3px;
}

@media (min-width: 880px) {
  .page-contact .ct-deck {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-contact .ct-deck .ct-tab:nth-child(2) {
    margin-top: 38px;
  }

  .page-contact .ct-deck .ct-tab:nth-child(3) {
    margin-top: 76px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-contact .ct-tab:hover {
    transform: translateY(-4px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-tab {
    transition: none;
  }
}

/* ============ 通道展开面板 ============ */
.page-contact .ct-panels {
  margin-top: clamp(48px, 6vw, 96px);
}

.page-contact .ct-panel {
  padding: clamp(24px, 3vw, 42px);
  border: var(--hair);
  border-left: 4px solid var(--danxia);
  border-radius: var(--radius);
  background: #FBF7EF;
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-panel--b {
  border-left-color: var(--pitch);
}

.page-contact .ct-panel--c {
  border-left-color: var(--indigo);
}

.page-contact .ct-panel[hidden] {
  display: none;
}

.page-contact .ct-panel:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-contact .ct-panel-title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .ct-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 10px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

@media (min-width: 720px) {
  .page-contact .ct-checklist {
    grid-template-columns: 1fr 1fr;
    gap: 14px 32px;
  }
}

.page-contact .ct-panel-foot {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: var(--hair);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-mute);
}

/* ============ 来信地址 ============ */
.page-contact .ct-address {
  background: var(--pitch);
  color: var(--sand);
  padding: clamp(64px, 8vw, 112px) 0;
}

.page-contact .ct-address-grid {
  display: grid;
  gap: clamp(32px, 4vw, 56px);
}

.page-contact .ct-address h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--sand);
}

.page-contact .ct-address-value {
  margin: 22px 0 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--sand);
}

.page-contact .ct-coord {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-contact .ct-mail-list {
  list-style: none;
  margin: clamp(26px, 3vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-mail-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 238, 226, .78);
}

.page-contact .ct-mail-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 13px;
  height: 1px;
  background: var(--gold);
}

.page-contact .ct-address-figure {
  margin: 0;
  border: 1px solid rgba(199, 188, 168, .24);
  border-radius: var(--radius);
  background: rgba(13, 26, 43, .34);
  overflow: hidden;
}

.page-contact .ct-address-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: .88;
}

.page-contact .ct-address-figure figcaption {
  padding: 14px 18px;
  border-top: 1px solid rgba(199, 188, 168, .2);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 238, 226, .6);
}

@media (min-width: 900px) {
  .page-contact .ct-address-grid {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
  }
}

/* ============ 响应节奏 ============ */
.page-contact .ct-cadence {
  background: var(--sand);
  padding: clamp(64px, 8vw, 112px) 0;
}

.page-contact .ct-metrics {
  display: grid;
  gap: 1px;
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--sand-line);
  overflow: hidden;
}

.page-contact .ct-metric {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(22px, 2.6vw, 32px);
  background: #FBF7EF;
}

.page-contact .ct-metric-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.1vw, 29px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--danxia-deep);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-metric-label {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

@media (min-width: 640px) {
  .page-contact .ct-metrics {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1000px) {
  .page-contact .ct-metrics {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============ 站点信息条 ============ */
.page-contact .ct-sitebar {
  background: var(--indigo);
  color: rgba(244, 238, 226, .72);
  padding: clamp(38px, 4.5vw, 60px) 0;
}

.page-contact .ct-sitebar-inner {
  display: grid;
  gap: 20px;
}

.page-contact .ct-sitebar-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-light);
}

.page-contact .ct-sitebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .ct-sitebar-item {
  display: grid;
  gap: 6px;
}

.page-contact .ct-sitebar-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(240, 203, 121, .72);
}

.page-contact .ct-sitebar-val {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(244, 238, 226, .9);
  word-break: break-word;
}

.page-contact .ct-sitebar-note {
  margin: 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(244, 238, 226, .66);
}

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

@media (min-width: 780px) {
  .page-contact .ct-sitebar-list {
    grid-template-columns: repeat(3, auto);
    justify-content: start;
    gap: 48px;
  }
}