.page-contact {
  --contact-ink-soft: rgba(245, 242, 234, .78);
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding-block: 1rem .25rem;
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper-2);
  padding-block: 2rem 3rem;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--pitch), rgba(46, 139, 87, 0) 62%);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 2rem;
}

.page-contact .contact-hero .eyebrow {
  color: var(--sprout);
}

.page-contact .contact-hero .display-title {
  margin: .6rem 0 0;
  font-size: clamp(2rem, 7vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--paper-2);
}

.page-contact .contact-hero .lede {
  margin: 1rem 0 0;
  max-width: 36em;
  font-size: clamp(1rem, 2.6vw, 1.125rem);
  line-height: 1.75;
  color: var(--contact-ink-soft);
}

/* 联系渠道卡 */
.page-contact .channel-stack {
  display: grid;
  gap: .9rem;
  margin-top: 2rem;
}

.page-contact .channel {
  padding: 1.1rem 1.15rem 1.2rem;
  background: rgba(20, 72, 110, .55);
  border: 1px solid rgba(215, 222, 227, .18);
  border-left: 3px solid var(--pitch);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  transform: translateY(-2px);
  border-color: var(--tide);
  background: rgba(31, 111, 139, .42);
}

.page-contact .channel__label {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .2em;
  color: var(--sprout);
}

.page-contact .channel__value {
  margin: .45rem 0 0;
  color: var(--amber);
  font-weight: 700;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.page-contact .channel__value--mono {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: clamp(.95rem, 4.2vw, 1.25rem);
  letter-spacing: .01em;
}

.page-contact .channel__value--num {
  font-size: clamp(1.5rem, 7vw, 2rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: .05em;
}

.page-contact .channel__note {
  margin: .65rem 0 0;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--contact-ink-soft);
}

.page-contact .channel__note a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: .18em;
  transition: color var(--dur) var(--ease);
}

.page-contact .channel__note a:hover {
  color: var(--paper-2);
}

/* 媒体兜底 */
.page-contact .media {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
}

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

.page-contact .contact-hero__aside {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-contact .media--contact {
  margin: 0;
  box-shadow: var(--shadow-lift);
}

/* 简短流程条 */
.page-contact .flow-strip {
  counter-reset: flow;
  list-style: none;
  margin: 0;
  padding: .9rem 0 0;
  border-top: 1px solid rgba(215, 222, 227, .22);
  display: grid;
  gap: .55rem;
}

.page-contact .flow-strip li {
  position: relative;
  padding-left: 1.9rem;
  font-size: .875rem;
  line-height: 1.6;
  color: var(--contact-ink-soft);
}

.page-contact .flow-strip li::before {
  counter-increment: flow;
  content: "0" counter(flow);
  position: absolute;
  left: 0;
  top: .12rem;
  font-size: .7rem;
  letter-spacing: .1em;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
}

/* 信息准备清单 */
.page-contact .prep {
  max-width: 54rem;
}

.page-contact .prep__intro {
  margin: .8rem 0 0;
  max-width: 40em;
}

.page-contact .prep__groups {
  display: grid;
  gap: 1.75rem;
  margin-top: 2rem;
}

.page-contact .prep-group__title {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  margin: 0 0 .85rem;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--sea);
}

.page-contact .prep-group__num {
  font-size: .75rem;
  letter-spacing: .18em;
  font-variant-numeric: tabular-nums;
  color: var(--tide);
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-contact .checklist__item {
  margin: 0;
}

.page-contact .checklist label {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  padding: .7rem .8rem;
  font-size: .9375rem;
  line-height: 1.65;
  color: var(--sea);
  background: var(--paper-2);
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-contact .checklist label:hover {
  border-color: var(--tide);
  box-shadow: var(--shadow);
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  display: grid;
  place-content: center;
  width: 1.15rem;
  height: 1.15rem;
  margin: .2rem 0 0;
  border: 1px solid var(--ocean);
  border-radius: 2px;
  background: var(--paper);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.page-contact .checklist__box::after {
  content: "";
  width: .55rem;
  height: .3rem;
  border-left: 2px solid var(--paper-2);
  border-bottom: 2px solid var(--paper-2);
  transform: rotate(-45deg) scale(0);
  transition: transform var(--dur) var(--ease);
}

.page-contact .checklist__box:checked {
  background: var(--pitch);
  border-color: var(--pitch);
}

.page-contact .checklist__box:checked::after {
  transform: rotate(-45deg) scale(1);
}

/* 答复节奏 */
.page-contact .reply-grid {
  display: grid;
  gap: 2rem;
}

.page-contact .reply-intro .text-muted {
  margin: .85rem 0 0;
  max-width: 30em;
}

.page-contact .reply-steps {
  margin: 0;
  padding: 0 0 0 1.4rem;
  list-style: none;
}

.page-contact .reply-step {
  padding-bottom: 1.6rem;
}

.page-contact .reply-step:last-child {
  padding-bottom: 0;
}

.page-contact .reply-step .timeline__date {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .18em;
  color: var(--tide);
}

.page-contact .reply-step__title {
  margin: .35rem 0 .3rem;
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--sea);
}

.page-contact .reply-step__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--slate);
}

/* 地址与备案 */
.page-contact .address-band {
  display: grid;
  margin-top: 1.5rem;
  overflow: hidden;
  background: var(--paper-2);
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-contact .address-band__media {
  margin: 0;
  background: var(--ocean);
}

.page-contact .address-band__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
}

.page-contact .address-band__body {
  padding: 1.5rem 1.25rem 1.6rem;
}

.page-contact .id-list {
  margin: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .id-list__row {
  display: grid;
  gap: .2rem;
  padding-bottom: .85rem;
  border-bottom: 1px solid var(--mist);
}

.page-contact .id-list__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .id-list dt {
  font-size: .8125rem;
  letter-spacing: .1em;
  color: var(--slate);
}

.page-contact .id-list dd {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--sea);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .address-band__note {
  margin: 1.25rem 0 0;
  font-size: .875rem;
  line-height: 1.7;
}

.page-contact .address-band__note a {
  color: var(--tide);
  text-decoration: underline;
  text-underline-offset: .18em;
  transition: color var(--dur) var(--ease);
}

.page-contact .address-band__note a:hover {
  color: var(--sea);
}

/* 回退入口 */
.page-contact .contact-return__box {
  display: grid;
  gap: 1.5rem;
  padding: 1.6rem 1.35rem;
  background: var(--paper-3);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius);
}

.page-contact .contact-return__box .title {
  margin: .5rem 0 0;
  font-size: clamp(1.375rem, 3.6vw, 1.75rem);
}

.page-contact .contact-return__box .text-muted {
  margin: .7rem 0 0;
  max-width: 36em;
}

.page-contact .contact-return__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* 焦点与动效偏好 */
.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact input:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .checklist label,
  .page-contact .checklist__box,
  .page-contact .checklist__box::after,
  .page-contact .channel__note a,
  .page-contact .address-band__note a {
    transition: none;
  }
}

/* 窄屏微调 */
@media (min-width: 480px) {
  .page-contact .id-list__row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    gap: .2rem 1rem;
    align-items: baseline;
  }
}

@media (min-width: 720px) {
  .page-contact .channel-stack {
    gap: 1rem;
  }

  .page-contact .prep__groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem 2.5rem;
  }

  .page-contact .prep-group:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 860px) {
  .page-contact .address-band {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }

  .page-contact .address-band__body {
    padding: 2rem 2rem 2.1rem;
  }

  .page-contact .contact-return__box {
    grid-template-columns: minmax(0, 1.4fr) auto;
    align-items: center;
    gap: 2.5rem;
    padding: 2rem 2.2rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-block: 2.5rem 3.5rem;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
  }

  .page-contact .reply-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    gap: 3.5rem;
    align-items: start;
  }
}
<<<END>>>