.page-contact {
  --contact-shadow: 0 1px 0 rgba(199, 214, 216, 0.55);
  background: var(--cloud);
  color: var(--ink);
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(14px, 3vw, 28px) 0 clamp(26px, 4vw, 46px);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(217, 238, 240, 0.95) 0%, rgba(247, 250, 249, 0) 62%),
    linear-gradient(180deg, var(--snow) 0%, var(--cloud) 78%);
  border-bottom: 1px solid var(--grid-line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 0;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--snow-deep) 0 1px, transparent 1px 14px);
  opacity: 0.65;
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 44px);
  align-items: center;
  margin-top: clamp(14px, 2vw, 22px);
}

.page-contact .contact-hero__intro h1 {
  margin: 10px 0 14px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-hero__intro .lede {
  max-width: 48ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--teal);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .contact-hero__note {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--sand-deep);
}

.page-contact .contact-hero__media {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--grid-line);
  background: var(--cloud);
  box-shadow: var(--contact-shadow);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid var(--snow);
}

.page-contact .contact-hero__media figcaption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--teal);
}

/* ---------- 通道卡片 ---------- */
.page-contact .contact-channels {
  padding: clamp(26px, 4vw, 52px) 0 clamp(24px, 3vw, 40px);
}

.page-contact .contact-channels__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--grid-line);
}

.page-contact .contact-channels__head .section-title {
  margin: 6px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 32px);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-channels__hint {
  max-width: 34ch;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--teal);
}

.page-contact .channel-grid {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 20px 18px 18px;
  background: var(--cloud);
  border: 1px solid var(--grid-line);
  box-shadow: var(--contact-shadow);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: var(--signal);
}

.page-contact .channel-card--phone::before {
  background: var(--data);
}

.page-contact .channel-card--addr::before {
  background: var(--sand-deep);
}

.page-contact .channel-card__key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--snow-deep);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(15px, 2.4vw, 19px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .channel-card__value--text {
  font-family: var(--sans);
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.6;
  word-break: normal;
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--teal);
}

.page-contact .channel-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--snow);
}

.page-contact .copy-btn {
  padding: 7px 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--teal);
  background: var(--snow);
  border: 1px solid var(--snow-deep);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--cloud);
}

.page-contact .copy-feedback {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--data);
}

.page-contact .channel-card__link {
  font-size: 13px;
  color: var(--data);
  text-decoration: none;
  border-bottom: 1px solid var(--snow-deep);
}

.page-contact .channel-card__link:hover,
.page-contact .channel-card__link:focus-visible {
  border-bottom-color: var(--signal);
  color: var(--signal-dark);
}

/* ---------- 主体：侧边导览 + 内容 ---------- */
.page-contact .contact-body {
  padding: clamp(8px, 2vw, 16px) 0 clamp(40px, 6vw, 76px);
}

.page-contact .contact-body__grid {
  display: grid;
  gap: 22px;
}

.page-contact .contact-toc {
  padding-top: 10px;
  border-top: 2px solid var(--ink);
}

.page-contact .contact-toc__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--snow-deep);
}

.page-contact .contact-toc .toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .contact-toc .toc-list li {
  flex: 0 0 auto;
}

.page-contact .contact-toc .toc-link {
  display: block;
  padding: 7px 10px;
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--teal);
  text-decoration: none;
  border: 1px solid var(--grid-line);
  background: var(--cloud);
}

.page-contact .contact-toc .toc-link:hover,
.page-contact .contact-toc .toc-link:focus-visible {
  border-color: var(--snow-deep);
  color: var(--ink);
}

.page-contact .contact-toc .toc-link[aria-current="true"] {
  color: var(--ink);
  border-color: var(--signal);
  box-shadow: inset 0 -2px 0 var(--signal);
}

.page-contact .contact-body__content {
  min-width: 0;
}

.page-contact .contact-block {
  padding-bottom: clamp(22px, 3vw, 34px);
  scroll-margin-top: 92px;
}

.page-contact .contact-block + .contact-block {
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--grid-line);
}

.page-contact .contact-block > .section-title {
  margin: 6px 0 12px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-block__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--teal);
}

.page-contact .contact-block__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--teal);
}

.page-contact .contact-block__note a {
  color: var(--data);
  text-decoration: none;
  border-bottom: 1px solid var(--snow-deep);
}

.page-contact .contact-block__note a:hover,
.page-contact .contact-block__note a:focus-visible {
  border-bottom-color: var(--signal);
}

/* ---------- 咨询分类折叠 ---------- */
.page-contact .advice-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.page-contact .advice-item {
  border: 1px solid var(--grid-line);
  background: var(--cloud);
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-contact .advice-item[open] {
  background: var(--snow);
  border-color: var(--snow-deep);
}

.page-contact .advice-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px;
  cursor: pointer;
  list-style: none;
}

.page-contact .advice-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .advice-item > summary::marker {
  content: "";
}

.page-contact .advice-item > summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1;
  color: var(--data);
}

.page-contact .advice-item[open] > summary::after {
  content: "\2212";
  color: var(--signal);
}

.page-contact .advice-item__no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--sand-deep);
}

.page-contact .advice-item__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-contact .advice-item__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .advice-item__hint {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--teal);
}

.page-contact .advice-item__body {
  padding: 0 14px 16px;
}

.page-contact .advice-item__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--ink);
}

.page-contact .advice-item__body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--teal);
}

.page-contact .advice-item__body li::marker {
  color: var(--signal);
}

.page-contact .advice-item__more {
  margin: 12px 0 0;
  font-size: 13.5px;
}

.page-contact .advice-item__more a {
  color: var(--data);
  text-decoration: none;
  border-bottom: 1px solid var(--snow-deep);
}

.page-contact .advice-item__more a:hover,
.page-contact .advice-item__more a:focus-visible {
  border-bottom-color: var(--signal);
}

/* ---------- 响应时间刻度 ---------- */
.page-contact .contact-timing {
  margin-top: 18px;
  padding: 18px 16px;
  border: 1px solid var(--grid-line);
  background: var(--cloud);
}

.page-contact .contact-timing__value {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .contact-timing__value span {
  color: var(--snow-deep);
}

.page-contact .contact-timing__value em {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-style: normal;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--sand-deep);
}

.page-contact .timing-scale {
  margin: 0 0 4px;
}

.page-contact .timing-scale__track {
  position: relative;
  height: 34px;
  border-left: 1px solid var(--grid-line);
  border-right: 1px solid var(--grid-line);
  background-image: repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 8.3333%);
}

.page-contact .timing-scale__window {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 41.667%;
  width: 37.5%;
  background: linear-gradient(90deg, var(--data) 0%, var(--signal) 100%);
  opacity: 0.85;
}

.page-contact .timing-scale__axis {
  position: relative;
  height: 20px;
  margin-top: 6px;
}

.page-contact .timing-scale__axis span {
  position: absolute;
  top: 0;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal);
}

.page-contact .timing-scale__axis span:nth-child(1) {
  left: 0;
}

.page-contact .timing-scale__axis span:nth-child(2) {
  left: 41.667%;
  transform: translateX(-50%);
  color: var(--data);
}

.page-contact .timing-scale__axis span:nth-child(3) {
  left: 79.167%;
  transform: translateX(-50%);
  color: var(--signal-dark);
}

.page-contact .timing-scale__axis span:nth-child(4) {
  right: 0;
}

.page-contact .contact-timing__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--teal);
}

.page-contact .contact-timing__list li {
  padding-left: 12px;
  border-left: 2px solid var(--snow);
}

.page-contact .contact-timing__label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--snow-deep);
}

/* ---------- 地域与地址 ---------- */
.page-contact .contact-region__grid {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.page-contact .contact-region__media {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--grid-line);
  background: var(--cloud);
}

.page-contact .contact-region__media img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--sand);
}

.page-contact .contact-region__media figcaption {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--sand-deep);
}

.page-contact .contact-region__card {
  padding: 18px 16px;
  border: 1px solid var(--sand);
  border-left: 4px solid var(--sand-deep);
  background: var(--snow);
}

.page-contact .contact-region__key {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--sand-deep);
}

.page-contact .contact-region__addr {
  margin: 0 0 10px;
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.page-contact .contact-region__desc {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--teal);
}

.page-contact .contact-region__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-contact .contact-region__regions {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--snow-deep);
  font-size: 13px;
  line-height: 1.7;
  color: var(--teal);
}

/* ---------- 内容合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.page-contact .partner-item {
  padding: 16px;
  background: var(--sand);
  border: 1px solid var(--sand-deep);
}

.page-contact .partner-item__no {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 7px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cloud);
  background: var(--sand-deep);
}

.page-contact .partner-item__title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .partner-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ink);
}

.page-contact .contact-feedback {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--grid-line);
  border-left: 4px solid var(--signal);
  background: var(--cloud);
}

.page-contact .contact-feedback__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-feedback p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--teal);
}

/* ---------- 备案信息 ---------- */
.page-contact .record-list {
  display: grid;
  gap: 1px;
  margin: 16px 0 0;
  padding: 0;
  border: 1px solid var(--grid-line);
  background: var(--grid-line);
  grid-template-columns: 1fr;
}

.page-contact .record-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--cloud);
}

.page-contact .record-row dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--snow-deep);
}

.page-contact .record-row dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  word-break: break-word;
}

/* ---------- 常见问题标签 ---------- */
.page-contact .faq-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
}

.page-contact .faq-tag {
  display: inline-block;
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--teal);
  text-decoration: none;
  background: var(--cloud);
  border: 1px solid var(--grid-line);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-contact .faq-tag:hover,
.page-contact .faq-tag:focus-visible {
  background: var(--snow);
  border-color: var(--signal);
  color: var(--ink);
}

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

  .page-contact .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .contact-region__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-contact .channel-card:nth-child(2) {
    transform: translateY(22px);
  }

  .page-contact .channel-card:nth-child(3) {
    transform: translateY(8px);
  }

  .page-contact .contact-channels {
    padding-bottom: clamp(48px, 5vw, 68px);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-body__grid {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-contact .contact-toc {
    position: sticky;
    top: 88px;
  }

  .page-contact .contact-toc .toc-list {
    display: block;
    overflow: visible;
  }

  .page-contact .contact-toc .toc-list li + li {
    margin-top: 4px;
  }

  .page-contact .contact-toc .toc-link {
    padding: 4px 0 4px 12px;
    white-space: normal;
    border: 0;
    border-left: 2px solid var(--grid-line);
    background: transparent;
    font-size: 13px;
  }

  .page-contact .contact-toc .toc-link[aria-current="true"] {
    border-left-color: var(--signal);
    box-shadow: none;
    background: var(--snow);
    font-weight: 600;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-region__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .copy-btn,
  .page-contact .faq-tag,
  .page-contact .advice-item {
    transition: none;
  }
}