.page-contact {
  --contact-gap: clamp(16px, 2vw, 26px);
  --contact-radius: 3px;
  background: var(--paper);
  padding-bottom: clamp(40px, 5vw, 80px);
  overflow-x: hidden;
}

.page-contact > .wrap:first-child {
  padding-top: 20px;
}

/* 首屏：左窄索引 + 右宽正文 */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  padding-block: clamp(22px, 3vw, 38px) clamp(36px, 5vw, 68px);
}

.page-contact .contact-index {
  display: grid;
  gap: 10px;
  align-content: start;
  border-top: 2px solid var(--qing);
  padding-top: 16px;
}

.page-contact .index-hours {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--qing);
}

.page-contact .index-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .index-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--line-soft);
}

.page-contact .index-list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: var(--line-soft);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.18s ease;
}

.page-contact .index-list a:hover,
.page-contact .index-list a:focus-visible {
  color: var(--cinnabar);
}

.page-contact .index-list .mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-contact .index-paths {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.page-contact .mini-path {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 11px 14px;
  background: var(--white);
  border: 1px solid rgba(31, 92, 90, 0.16);
  border-left: 3px solid var(--cinnabar);
  border-radius: var(--contact-radius);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-contact .mini-path:hover,
.page-contact .mini-path:focus-visible {
  background: var(--qing);
  border-color: var(--qing);
  border-left-color: var(--amber);
  color: var(--paper);
}

.page-contact .contact-lead .display-title {
  margin: 0 0 14px;
}

.page-contact .contact-lead .lede {
  max-width: 60ch;
  color: var(--stone);
}

.page-contact .channel-cards {
  display: grid;
  gap: var(--contact-gap);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .channel {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(20px, 2.4vw, 28px);
  border-radius: var(--contact-radius);
  border: 1px solid transparent;
}

.page-contact .channel--mail {
  background: var(--qing-deep);
  border-color: var(--qing-deep);
  box-shadow: var(--shadow);
  color: var(--paper);
}

.page-contact .channel--phone {
  background: var(--silver);
  border-color: rgba(31, 92, 90, 0.2);
  color: var(--ink);
}

.page-contact .channel-label {
  margin: 0;
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .channel--phone .channel-label {
  color: var(--qing);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(15px, 1.7vw, 20px);
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--stone);
}

.page-contact .channel--mail .channel-desc {
  color: rgba(246, 248, 247, 0.78);
}

.page-contact .channel-foot {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--stone);
}

/* 通用区块头 */
.page-contact .section-head {
  display: grid;
  gap: 12px;
  max-width: 62ch;
  margin-bottom: clamp(22px, 3vw, 38px);
}

.page-contact .section-head .section-title {
  margin: 0;
}

.page-contact .section-lede {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--stone);
}

/* 订阅与反馈 */
.page-contact .feedback-section {
  background: var(--white);
  border-top: 1px solid rgba(31, 92, 90, 0.12);
  border-bottom: 1px solid rgba(31, 92, 90, 0.12);
}

.page-contact .feedback-grid {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
}

.page-contact .collapse-group {
  background: var(--white);
  border: 1px solid rgba(31, 92, 90, 0.16);
  border-radius: var(--contact-radius);
  padding: 4px clamp(14px, 2vw, 22px);
  box-shadow: var(--shadow);
}

.page-contact .collapse-trigger {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: baseline;
  gap: 12px;
  width: 100%;
  padding: 18px 0;
  background: none;
  border: 0;
  border-top: 1px solid rgba(31, 92, 90, 0.12);
  font: inherit;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.page-contact .collapse-group .collapse:first-child .collapse-trigger {
  border-top: 0;
}

.page-contact .fb-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-contact .fb-name {
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}

.page-contact .fb-hint {
  grid-column: 2;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--stone);
}

.page-contact .collapse-trigger[aria-expanded="true"] .fb-name {
  color: var(--qing);
}

.page-contact .collapse-trigger[aria-expanded="true"] .fb-num {
  color: var(--amber-deep);
}

.page-contact .collapse-trigger:hover .fb-name {
  color: var(--qing);
}

.page-contact .collapse-body {
  padding: 0 0 20px;
}

.page-contact .collapse-body.prose p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--stone);
}

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

.page-contact .collapse-body.prose a {
  color: var(--qing);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .collapse-body.prose a:hover {
  color: var(--cinnabar);
}

.page-contact .subscribe-card {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(20px, 2.4vw, 28px);
  background: var(--silver);
  border-top: 4px solid var(--amber);
  border-radius: var(--contact-radius);
}

.page-contact .subscribe-num {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(32px, 4.4vw, 46px);
  line-height: 1;
  color: var(--qing-deep);
}

.page-contact .subscribe-label {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink);
}

.page-contact .subscribe-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--stone);
}

.page-contact .subscribe-list li {
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.page-contact .subscribe-list li::before {
  content: "—";
  color: var(--cinnabar);
  flex: none;
}

.page-contact .subscribe-foot {
  margin: 6px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(31, 92, 90, 0.18);
  font-size: var(--fs-micro);
  line-height: 1.7;
  color: var(--stone);
}

/* 处理流程：深色主题带 */
.page-contact .flow-band {
  background: var(--qing-deep);
  color: var(--paper);
  padding-block: clamp(40px, 5vw, 72px);
}

.page-contact .flow-head {
  display: grid;
  gap: 12px;
  max-width: 58ch;
  margin-bottom: clamp(24px, 3vw, 38px);
}

.page-contact .flow-band .eyebrow {
  color: var(--amber);
}

.page-contact .flow-head .section-title {
  margin: 0;
  color: var(--white);
}

.page-contact .flow-head p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: rgba(246, 248, 247, 0.76);
}

.page-contact .flow-steps {
  list-style: none;
  margin: 0 0 clamp(24px, 3vw, 36px);
  padding: 0;
  display: grid;
  gap: clamp(20px, 2.4vw, 30px);
}

.page-contact .flow-step {
  position: relative;
  display: grid;
  gap: 8px;
  align-content: start;
  padding-top: 20px;
  border-top: 1px solid rgba(220, 230, 228, 0.26);
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}

.page-contact .step-num {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-contact .flow-step h3 {
  margin: 0;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(246, 248, 247, 0.78);
}

.page-contact .flow-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .flow-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--contact-radius);
  border: 1px solid rgba(220, 230, 228, 0.22);
  object-fit: cover;
}

.page-contact .flow-figure figcaption {
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: rgba(246, 248, 247, 0.6);
}

/* 常见场景：行式列表 */
.page-contact .lane-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: var(--line);
}

.page-contact .lane {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.2vw, 26px) 12px;
  margin-inline: -12px;
  border-top: var(--line);
  transition: background 0.2s ease;
}

.page-contact .lane:hover {
  background: rgba(220, 230, 228, 0.4);
}

.page-contact .lane-topic {
  margin: 0;
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .lane-body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .lane-where {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  font-size: 13px;
}

.page-contact .lane-where .tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border: 1px solid rgba(31, 92, 90, 0.35);
  border-radius: 2px;
  color: var(--qing);
}

.page-contact .lane-where .tag--amber {
  border-color: rgba(185, 122, 46, 0.5);
  color: var(--amber-deep);
}

.page-contact .lane-where a {
  color: var(--qing);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 92, 90, 0.35);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-contact .lane-where a:hover,
.page-contact .lane-where a:focus-visible {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}

/* 地址与备案 */
.page-contact .registry-band {
  position: relative;
  overflow: hidden;
  background: var(--qing-deep);
  padding-block: clamp(40px, 5vw, 76px);
}

.page-contact .registry-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

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

.page-contact .registry-band::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(118deg, rgba(16, 42, 41, 0.94) 0%, rgba(20, 61, 60, 0.84) 54%, rgba(31, 92, 90, 0.64) 100%);
}

.page-contact .registry-inner {
  position: relative;
  z-index: 1;
}

.page-contact .registry-card {
  display: grid;
  gap: 16px;
  max-width: 640px;
  padding: clamp(22px, 2.6vw, 34px);
  background: var(--white);
  border-radius: var(--contact-radius);
  box-shadow: var(--shadow);
}

.page-contact .registry-card .section-title {
  margin: 0;
}

.page-contact .registry-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .registry-list > div {
  display: grid;
  gap: 4px;
  padding-block: 12px;
  border-top: var(--line-soft);
}

.page-contact .registry-list > div:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .registry-list dt {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-contact .registry-list dd {
  margin: 0;
  font-size: 15.5px;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .registry-list dd.mono {
  font-family: var(--mono);
  font-size: 14.5px;
  letter-spacing: 0.01em;
}

.page-contact .registry-note {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--cinnabar);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--stone);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-contact .channel-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .collapse-trigger {
    grid-template-columns: 32px minmax(0, 1fr) auto;
  }

  .page-contact .fb-hint {
    grid-column: auto;
    text-align: right;
  }

  .page-contact .collapse-body {
    padding-left: 44px;
  }

  .page-contact .registry-list > div {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 860px) {
  .page-contact .flow-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-contact .feedback-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .lane {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.62fr) minmax(0, 0.72fr);
    gap: 28px;
    align-items: baseline;
  }

  .page-contact .lane-where {
    justify-content: flex-end;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .contact-index {
    border-top: 0;
    border-left: 2px solid var(--qing);
    padding-top: 0;
    padding-left: 20px;
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>