.page-contact {
  --contact-gutter: 0;
}

.page-contact .breadcrumb {
  padding-top: 26px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: 30px 0 52px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-hero .eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--rock);
  margin: 0 0 16px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(28px, 7vw, 46px);
  line-height: 1.32;
  letter-spacing: 0;
  color: var(--ink);
  margin: 0 0 20px;
  max-width: 18em;
}

.page-contact .contact-hero__lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--rock);
  margin: 0;
  max-width: 36em;
}

.page-contact .contact-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 联络卡片 ---------- */
.page-contact .contact-channels {
  padding: 56px 0 0;
}

.page-contact .contact-channels .section-head {
  margin-bottom: 32px;
}

.page-contact .section-head .eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--rock);
  margin: 0 0 12px;
}

.page-contact .section-head__title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 5.2vw, 34px);
  line-height: 1.35;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-contact .section-head__note {
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
  margin: 0;
  max-width: 34em;
}

.page-contact .letter-stack {
  display: grid;
  gap: 18px;
}

.page-contact .letter-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px 22px 26px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-contact .letter-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  opacity: 0.9;
}

.page-contact .letter-card__num {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--accent-deep);
  margin: 8px 0 12px;
}

.page-contact .letter-card__title {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-contact .letter-card__value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  word-break: break-word;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .letter-card__value:hover,
.page-contact .letter-card__value:focus-visible {
  color: var(--accent-deep);
  border-color: var(--accent-deep);
}

.page-contact .letter-card__value--plain {
  border-bottom-style: dashed;
  border-bottom-color: var(--line);
  cursor: default;
}

.page-contact .letter-card__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
  margin: 14px 0 0;
}

.page-contact .contact-aside {
  margin-top: 30px;
}

.page-contact .contact-aside .figure {
  margin: 0;
}

.page-contact .contact-aside .figure__media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--frost);
}

.page-contact .contact-aside .figure__media img,
.page-contact .siteinfo-figure .figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-aside .figure__caption,
.page-contact .siteinfo-figure .figure__caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
  margin: 12px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--accent-tint);
}

.page-contact .aside-note {
  margin: 20px 0 0;
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--accent-tint);
  border-radius: var(--radius-sm);
}

/* ---------- 邮件 ---------- */
.page-contact .contact-mail {
  margin-top: 64px;
  padding: 56px 0 60px;
  background: var(--frost);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-mail .eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--rock);
  margin: 0 0 12px;
}

.page-contact .contact-mail h2 {
  font-family: var(--font-serif);
  font-size: clamp(23px, 5vw, 32px);
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 14px;
}

.page-contact .contact-mail__lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
  margin: 0 0 8px;
}

.page-contact .mail-topics {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .mail-topics li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .mail-topics li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .mail-topics__mark {
  font-size: 12px;
  color: var(--accent-deep);
  letter-spacing: 0.08em;
}

.page-contact .mail-panel {
  margin-top: 30px;
  padding: 24px 22px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--line);
}

.page-contact .mail-panel__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--accent-deep);
  margin: 0 0 10px;
}

.page-contact .mail-panel__label + .mail-panel__text {
  margin-top: 0;
}

.page-contact .mail-panel__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
  margin: 0 0 24px;
}

.page-contact .mail-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .mail-actions .btn {
  width: 100%;
  text-align: left;
  border-radius: var(--radius-pill);
}

.page-contact .mail-panel__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
  margin: 16px 0 0;
}

/* ---------- 电话 ---------- */
.page-contact .contact-phone {
  padding: 60px 0 0;
}

.page-contact .phone-block {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--accent-tint);
  padding: 30px 22px 32px;
}

.page-contact .phone-block .eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent-deep);
  margin: 0 0 14px;
}

.page-contact .phone-block h2 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 4.8vw, 30px);
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 14px;
}

.page-contact .phone-block__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
  margin: 0 0 22px;
  max-width: 36em;
}

.page-contact .phone-number {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 7.4vw, 42px);
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--accent-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 6px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .phone-number:hover,
.page-contact .phone-number:focus-visible {
  color: var(--ink);
  border-color: var(--ink);
}

.page-contact .phone-block__note {
  font-size: 13px;
  line-height: 1.75;
  color: var(--rock);
  margin: 18px 0 0;
}

/* ---------- 合作 ---------- */
.page-contact .contact-coop {
  padding: 64px 0 0;
}

.page-contact .contact-coop .section-head {
  margin-bottom: 30px;
}

.page-contact .coop-grid {
  display: grid;
  gap: 14px;
}

.page-contact .coop-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px 20px 24px;
  background: var(--paper);
}

.page-contact .coop-card__tag {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0 0 12px;
}

.page-contact .coop-card__title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-contact .coop-card__text {
  font-size: 14px;
  line-height: 1.85;
  color: var(--rock);
  margin: 0;
}

.page-contact .coop-note {
  margin: 26px 0 0;
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
  border-left: 3px solid var(--accent);
  background: var(--surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ---------- 站点信息 ---------- */
.page-contact .contact-siteinfo {
  padding: 64px 0 72px;
}

.page-contact .siteinfo-grid {
  display: grid;
  gap: 30px;
}

.page-contact .contact-siteinfo .eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--rock);
  margin: 0 0 12px;
}

.page-contact .contact-siteinfo h2 {
  font-family: var(--font-serif);
  font-size: clamp(23px, 5vw, 32px);
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 6px;
}

.page-contact .info-list {
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .info-list > div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding: 13px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .info-list > div:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .info-list dt {
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
  letter-spacing: 0.03em;
}

.page-contact .info-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .info-links {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--rock);
}

.page-contact .info-links a {
  color: var(--accent-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-tint);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-contact .info-links a:hover,
.page-contact .info-links a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-contact .siteinfo-figure {
  margin: 0;
}

.page-contact .siteinfo-figure .figure__media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--frost);
}

/* ---------- 焦点态 ---------- */
.page-contact a:focus-visible,
.page-contact .btn:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 3px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    padding: 40px 0 60px;
  }

  .page-contact .contact-hero__lead {
    font-size: 17px;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .mail-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .page-contact .mail-actions .btn {
    width: auto;
    text-align: center;
  }
}

@media (min-width: 860px) {
  .page-contact .breadcrumb {
    padding-top: 34px;
  }

  .page-contact .contact-hero {
    padding: 44px 0 68px;
  }

  .page-contact .contact-channels {
    padding-top: 72px;
  }

  .page-contact .contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .letter-stack {
    gap: 22px;
  }

  .page-contact .letter-card:nth-child(1) {
    margin-right: 13%;
    transform: rotate(-0.5deg);
  }

  .page-contact .letter-card:nth-child(2) {
    margin-left: 9%;
    margin-right: 4%;
    transform: rotate(0.4deg);
  }

  .page-contact .letter-card:nth-child(3) {
    margin-left: 20%;
    transform: rotate(-0.3deg);
  }

  .page-contact .letter-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .page-contact .letter-card:hover {
    transform: translateY(-3px) rotate(0deg);
  }

  .page-contact .contact-aside {
    margin-top: 0;
    position: sticky;
    top: 96px;
  }

  .page-contact .contact-mail {
    margin-top: 84px;
    padding: 72px 0 76px;
  }

  .page-contact .mail-panel {
    margin-top: 0;
    padding: 28px 26px;
  }

  .page-contact .contact-phone {
    padding-top: 76px;
  }

  .page-contact .phone-block {
    padding: 42px 40px 44px;
  }

  .page-contact .contact-coop {
    padding-top: 80px;
  }

  .page-contact .contact-siteinfo {
    padding: 80px 0 92px;
  }

  .page-contact .siteinfo-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    gap: 60px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .letter-card,
  .page-contact .letter-card:hover {
    transform: none;
    transition: none;
  }

  .page-contact .letter-card__value,
  .page-contact .phone-number,
  .page-contact .info-links a {
    transition: none;
  }
}
<<<END>>>