.page-contact {
  --c-hair: 1px solid rgba(201, 210, 220, .16);
  --c-hair-soft: 1px solid rgba(201, 210, 220, .08);
  --c-text: rgba(201, 210, 220, .84);
  --c-text-dim: rgba(201, 210, 220, .6);
  --c-paper-hair: 1px solid rgba(10, 18, 32, .14);
  --c-paper-hair-soft: 1px solid rgba(10, 18, 32, .08);
  background:
    radial-gradient(880px 520px at 78% -10%, rgba(16, 32, 58, .92), rgba(10, 18, 32, 0) 64%),
    var(--ink-900);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.85;
  overflow-x: hidden;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact p {
  margin: 0 0 18px;
}

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

.page-contact section {
  position: relative;
}

.page-contact section[id],
.page-contact .flow-step {
  scroll-margin-top: 32px;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-500);
  margin: 0;
}

.page-contact h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(25px, 4.6vw, 39px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--white);
  margin: 10px 0 20px;
}

.page-contact .lead {
  font-size: clamp(16px, 2.1vw, 18.5px);
  line-height: 1.8;
  color: rgba(201, 210, 220, .78);
  max-width: 62ch;
  margin: 0;
}

.page-contact .section-head {
  margin-bottom: 8px;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: 28px;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12.5px;
  letter-spacing: .06em;
}

.page-contact .breadcrumb li {
  display: flex;
  align-items: center;
  color: var(--gold-500);
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin: 0 10px;
  color: rgba(201, 210, 220, .3);
}

.page-contact .breadcrumb a {
  color: rgba(201, 210, 220, .62);
  text-decoration: none;
  transition: color .16s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--gold-250);
}

/* ---------- 首屏 ---------- */
.contact-hero {
  padding: 36px 0 clamp(56px, 8vw, 96px);
  border-bottom: var(--c-hair);
}

.contact-hero__inner {
  display: grid;
  gap: 36px;
  align-items: end;
}

.contact-hero h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(33px, 6.6vw, 61px);
  line-height: 1.12;
  letter-spacing: -.022em;
  color: var(--white);
  margin: 14px 0 22px;
  max-width: 18ch;
}

.contact-hero__lead .lead {
  max-width: 46ch;
}

.contact-hero__media {
  margin: 0;
  aspect-ratio: 16 / 9;
  border: var(--c-hair);
  background: var(--navy-800);
  overflow: hidden;
}

.contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(.72) contrast(1.06);
}

.contact-hero__media .media-frame__cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
}

/* ---------- 渠道 ---------- */
.channels {
  padding: clamp(56px, 8vw, 96px) 0;
  border-bottom: var(--c-hair);
}

.channel-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: var(--c-hair);
}

.channel-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding: 22px 0;
  border-bottom: var(--c-hair);
}

.channel-key {
  flex: 0 0 auto;
  min-width: 56px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold-500);
}

.channel-value {
  flex: 1 1 240px;
  min-width: 0;
  font-size: clamp(17px, 3vw, 25px);
  line-height: 1.4;
  letter-spacing: .012em;
  color: var(--white);
  word-break: break-word;
  overflow-wrap: anywhere;
  transition: letter-spacing .3s var(--ease);
}

.channel-value--addr {
  font-size: clamp(15px, 2.2vw, 20px);
  line-height: 1.65;
  letter-spacing: .01em;
}

.channel-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.page-contact .copy-btn {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .12em;
  padding: 8px 14px;
  min-height: 40px;
  white-space: nowrap;
  border: 1px solid rgba(201, 210, 220, .24);
  background: transparent;
  color: rgba(201, 210, 220, .78);
  cursor: pointer;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-contact .copy-btn:hover {
  border-color: var(--gold-500);
  color: var(--gold-250);
}

.page-contact .copy-status {
  font-family: var(--font-sans);
  font-size: 11.5px;
  letter-spacing: .12em;
  padding: 3px 9px;
  color: var(--teal-450);
  border: 1px solid rgba(63, 138, 122, .5);
  background: rgba(63, 138, 122, .1);
}

.channel-note {
  margin-top: 28px;
  padding-left: 18px;
  border-left: 2px solid var(--gold-500);
  font-size: 15px;
  color: rgba(201, 210, 220, .82);
  max-width: 68ch;
}

.channel-bound {
  margin-top: 14px;
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--c-text-dim);
  max-width: 68ch;
}

/* ---------- 预约流程 ---------- */
.flow {
  padding: clamp(56px, 8vw, 96px) 0;
  border-bottom: var(--c-hair);
}

.flow__grid {
  row-gap: 40px;
}

.flow-rail {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.flow-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 26px 0;
  border-top: var(--c-hair-soft);
  transition: border-color .2s var(--ease);
}

.flow-step:first-child {
  border-top: var(--c-hair);
}

.flow-step__num {
  font-size: clamp(30px, 7vw, 64px);
  font-weight: 500;
  line-height: .95;
  letter-spacing: -.04em;
  color: rgba(201, 210, 220, .2);
  transition: color .2s var(--ease);
}

.flow-step:hover .flow-step__num {
  color: var(--gold-500);
}

.flow-step__body {
  min-width: 0;
  padding-top: 4px;
}

.flow-step__body h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(18px, 2.4vw, 21px);
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--white);
  margin: 0 0 8px;
}

.flow-step__body p {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(201, 210, 220, .78);
  max-width: 58ch;
}

.page-contact .panel {
  background: var(--navy-800);
  border: var(--c-hair);
  box-shadow: var(--shadow-panel);
  padding: 26px 24px;
}

.quick-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.quick-list li + li {
  border-top: var(--c-hair-soft);
}

.quick-list a {
  display: block;
  padding: 13px 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(201, 210, 220, .84);
  text-decoration: none;
  transition: color .16s var(--ease), padding-left .16s var(--ease);
}

.quick-list a:hover {
  color: var(--gold-250);
  padding-left: 6px;
}

/* ---------- 响应口径（浅色纸面） ---------- */
.page-contact .resp.on-paper {
  background: var(--paper-050);
  color: var(--slate-600);
  border-top: var(--c-hair);
  border-bottom: 1px solid rgba(10, 18, 32, .12);
  padding: clamp(56px, 8vw, 96px) 0;
}

.page-contact .on-paper h2 {
  color: var(--ink-900);
}

.page-contact .on-paper .eyebrow {
  color: var(--slate-600);
}

.page-contact .on-paper .lead {
  color: var(--slate-600);
}

.resp__grid {
  row-gap: 40px;
  align-items: start;
}

.resp-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: var(--c-paper-hair);
}

.resp-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 18px 0;
  border-bottom: var(--c-paper-hair-soft);
}

.resp-item__key {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--clay-500);
}

.resp-item p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-600);
  max-width: 56ch;
}

.resp__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  border: var(--c-paper-hair);
  background: rgba(10, 18, 32, .06);
  overflow: hidden;
}

.resp__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(.7) contrast(1.04);
}

.resp__media .media-frame__cap {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--slate-600);
}

/* ---------- 准备清单 ---------- */
.prep {
  padding: clamp(56px, 8vw, 96px) 0;
  border-bottom: var(--c-hair);
}

.checklist {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
}

.check-item {
  border-top: var(--c-hair-soft);
}

.check-item:first-child {
  border-top: var(--c-hair);
}

.check-label {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  min-height: 44px;
  cursor: pointer;
}

.check-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
}

.check-box {
  flex: 0 0 auto;
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 5px;
  border: 1px solid rgba(201, 210, 220, .4);
  background: rgba(201, 210, 220, .04);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.check-input:checked + .check-box {
  border-color: var(--teal-450);
  background: rgba(63, 138, 122, .18);
}

.check-input:checked + .check-box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 5px;
  height: 11px;
  border-right: 2px solid var(--teal-450);
  border-bottom: 2px solid var(--teal-450);
  transform: rotate(42deg);
}

.check-input:focus-visible + .check-box {
  outline: 2px solid var(--gold-250);
  outline-offset: 2px;
}

.check-text {
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(201, 210, 220, .88);
  max-width: 60ch;
  transition: color .2s var(--ease);
}

.check-input:checked ~ .check-text {
  color: rgba(201, 210, 220, .55);
  text-decoration: line-through;
  text-decoration-color: rgba(63, 138, 122, .55);
}

.prep-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 30px;
}

/* ---------- 分区联络 ---------- */
.zones {
  padding: clamp(56px, 8vw, 96px) 0;
  border-bottom: var(--c-hair);
}

.zone-grid {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(201, 210, 220, .16);
  border: var(--c-hair);
}

.zone-cell {
  background: var(--ink-900);
  padding: 16px 8px;
  text-align: center;
  transition: background-color .18s var(--ease);
}

.zone-cell:hover {
  background: var(--navy-800);
}

.zone-cell .mono {
  font-size: 15px;
  letter-spacing: .12em;
  color: rgba(201, 210, 220, .8);
}

.zone-note {
  margin-top: 28px;
  padding-left: 18px;
  border-left: 2px solid var(--slate-600);
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-text-dim);
  max-width: 74ch;
}

/* ---------- 信息使用 ---------- */
.usage {
  padding: clamp(56px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
}

.usage__inner {
  max-width: 760px;
}

.usage__inner p {
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(201, 210, 220, .8);
  max-width: 66ch;
}

.usage__link {
  margin-top: 26px;
}

/* ---------- 收束细线 ---------- */
.contact-tail {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(40px, 6vw, 80px);
  display: grid;
  gap: 10px;
}

.contact-tail span {
  display: block;
  height: 1px;
  background: rgba(201, 210, 220, .24);
}

.contact-tail span:nth-child(1) { width: 100%; }
.contact-tail span:nth-child(2) { width: 58%; }
.contact-tail span:nth-child(3) { width: 22%; }

/* ---------- 悬停微交互（仅指针设备） ---------- */
@media (hover: hover) {
  .channel-item:hover .channel-value {
    letter-spacing: -.006em;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 768px) {
  .page-contact {
    font-size: 16.5px;
  }

  .contact-hero__inner {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 56px;
    align-items: center;
  }

  .contact-hero__media {
    aspect-ratio: 3 / 4;
  }

  .channel-item {
    flex-wrap: nowrap;
    align-items: center;
  }

  .channel-value {
    flex: 1 1 auto;
  }

  .resp-item {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .zone-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .contact-hero__inner {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 80px;
  }

  .flow__aside .panel {
    position: sticky;
    top: 40px;
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }

  .channel-value,
  .quick-list a,
  .flow-step__num {
    transition: none;
  }
}