.page-contact {
  --cc-pad-y: clamp(44px, 6vw, 76px);
  --cc-rule: 3px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-contact .contact-hero {
  position: relative;
  padding: clamp(28px, 5vw, 52px) 0 clamp(36px, 5vw, 60px);
  background:
    radial-gradient(120% 110% at 88% -10%, var(--red-soft) 0%, rgba(251, 225, 229, 0) 62%),
    linear-gradient(180deg, var(--white) 0%, var(--paper) 100%);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 300px;
  height: 300px;
  background: repeating-linear-gradient(108deg, var(--red) 0 10px, transparent 10px 22px);
  opacity: 0.08;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-contact .contact-hero__text .breadcrumb {
  margin-bottom: 18px;
}

.page-contact .contact-hero h1 {
  margin: 10px 0 16px;
  font-size: clamp(30px, 5.4vw, 50px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--navy);
}

.page-contact .contact-hero__lead {
  max-width: 56ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .contact-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__chips li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 132px;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--mist);
  border-left: 3px solid var(--red);
  font-size: 12px;
  color: var(--ink-soft);
}

.page-contact .contact-hero__chip-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--navy);
}

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

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 87%, 85% 100%, 0 100%);
  box-shadow: var(--shadow-card);
}

.page-contact .contact-head {
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-contact .contact-head .section__title {
  margin: 10px 0 12px;
}

.page-contact .contact-head .section__lead {
  max-width: 64ch;
  color: var(--ink-soft);
}

/* ---- 两条通道 ---- */

.page-contact .contact-channels {
  padding: var(--cc-pad-y) 0;
}

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

.page-contact .contact-channel {
  padding: 26px 22px 24px;
  background: var(--white);
}

.page-contact .contact-channel--alt {
  background: linear-gradient(180deg, var(--white) 0%, #fff6f2 100%);
}

.page-contact .contact-channel__value {
  margin: 12px 0 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(17px, 2.8vw, 22px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--navy);
  word-break: break-all;
}

.page-contact .contact-channel--alt .contact-channel__value {
  color: var(--red);
  word-break: normal;
}

.page-contact .contact-channel__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--mist);
}

.page-contact .contact-channel__list li {
  position: relative;
  padding: 9px 0 9px 18px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
  border-bottom: 1px dashed var(--mist);
}

.page-contact .contact-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 7px;
  height: 7px;
  background: var(--red);
  transform: skewX(-18deg);
}

.page-contact .contact-channel__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

.page-contact .contact-channels__rule {
  display: none;
  width: var(--cc-rule);
  background: linear-gradient(180deg, transparent 0%, var(--gold) 22%, var(--gold) 78%, transparent 100%);
  border-radius: 2px;
}

/* ---- 邮件骨架 ---- */

.page-contact .contact-letter {
  padding: var(--cc-pad-y) 0;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: var(--white);
}

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

.page-contact .contact-letter .section__title {
  margin: 10px 0 14px;
  color: var(--white);
}

.page-contact .contact-letter .section__lead {
  max-width: 60ch;
  color: rgba(255, 255, 255, 0.76);
}

.page-contact .contact-letter .eyebrow {
  color: var(--gold);
}

.page-contact .mail-skeleton {
  margin: 24px 0 0;
  padding: 20px 18px;
  background: var(--paper);
  border-left: 4px solid var(--red);
  border-radius: 2px;
  overflow-x: auto;
  box-shadow: var(--shadow-card);
}

.page-contact .mail-skeleton code {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--navy);
  white-space: pre;
}

.page-contact .mail-skeleton__field {
  color: var(--gold);
  font-weight: 700;
  text-shadow: 0 0 0 transparent;
  background: var(--navy);
  padding: 1px 6px;
  border-radius: 2px;
}

.page-contact .mail-fields {
  margin: 26px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.page-contact .mail-fields__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.page-contact .mail-fields dt {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-contact .mail-fields dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.86);
}

.page-contact .contact-letter__tail {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.76);
}

.page-contact .contact-letter__tail a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-contact .contact-letter__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 9% 100%, 0 86%);
  box-shadow: var(--shadow-card);
}

.page-contact .contact-letter__media figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
}

/* ---- 处理顺序 ---- */

.page-contact .contact-order {
  padding: var(--cc-pad-y) 0;
}

.page-contact .priority-bar {
  display: grid;
  gap: 8px;
}

.page-contact .priority-bar__seg {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  color: var(--white);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-contact .priority-bar__seg--one {
  background: linear-gradient(100deg, var(--red) 0%, var(--red-dark) 100%);
}

.page-contact .priority-bar__seg--two {
  background: linear-gradient(100deg, var(--navy-2) 0%, var(--navy) 100%);
}

.page-contact .priority-bar__seg--three {
  background: linear-gradient(100deg, #2c4a6d 0%, #465f7c 100%);
}

.page-contact .priority-bar__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  opacity: 0.82;
}

.page-contact .priority-bar__name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .priority-bar__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

.page-contact .priority-bar__seg--three .priority-bar__meta {
  color: var(--mist);
}

.page-contact .priority-bar__foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---- 来件分类 ---- */

.page-contact .contact-kinds {
  padding: 0 0 var(--cc-pad-y);
}

.page-contact .mail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--navy);
}

.page-contact .mail-list__item {
  border-bottom: 1px solid var(--mist);
}

.page-contact .mail-row {
  background: var(--white);
}

.page-contact .mail-row[open] {
  background: linear-gradient(180deg, var(--white) 0%, var(--paper) 100%);
}

.page-contact .mail-row__summary {
  display: grid;
  grid-template-columns: 38px 1fr auto 16px;
  align-items: center;
  gap: 10px;
  padding: 16px 14px;
  cursor: pointer;
  list-style: none;
}

.page-contact .mail-row__summary::-webkit-details-marker {
  display: none;
}

.page-contact .mail-row__index {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--red);
}

.page-contact .mail-row__name {
  font-size: 15px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.01em;
}

.page-contact .mail-row__time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  white-space: nowrap;
}

.page-contact .mail-row__chev {
  position: relative;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 240ms var(--ease);
}

.page-contact .mail-row[open] .mail-row__chev {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-contact .mail-row__body {
  padding: 0 14px 18px 62px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .mail-row__body p {
  margin: 0 0 10px;
}

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

.page-contact .mail-row__body a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- 信息条 ---- */

.page-contact .contact-strip-wrap {
  padding: 0 0 clamp(44px, 6vw, 72px);
}

.page-contact .contact-strip {
  position: relative;
  display: grid;
  gap: 22px;
  padding: 28px 22px;
  background: var(--navy);
  color: var(--white);
  border-top: 8px solid transparent;
  border-image: repeating-linear-gradient(108deg, var(--red) 0 12px, var(--white) 12px 24px) 8;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-contact .contact-strip__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-contact .contact-strip__value {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-contact .contact-strip__value--mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.page-contact .contact-strip__hint {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.68);
}

.page-contact .contact-strip__hint a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-strip__divider {
  height: 1px;
  background: rgba(232, 178, 58, 0.4);
}

/* ---- 交互与动效 ---- */

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.page-contact .mail-row__summary:active {
  transform: scale(0.99);
}

@media (min-width: 700px) {
  .page-contact .mail-fields__row {
    grid-template-columns: 150px 1fr;
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .mail-fields dt {
    padding-top: 2px;
  }

  .page-contact .priority-bar {
    grid-template-columns: 1.5fr 1fr 0.9fr;
    align-items: stretch;
    gap: 6px;
  }

  .page-contact .contact-strip {
    grid-template-columns: 1fr auto 1fr;
    align-items: start;
    gap: 26px;
    padding: 32px 30px;
  }

  .page-contact .contact-strip__divider {
    width: 1px;
    height: 100%;
    min-height: 80px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: 380px minmax(0, 1fr);
    gap: 48px;
  }

  .page-contact .contact-hero__media {
    order: -1;
  }

  .page-contact .contact-channels__pair {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 0;
    align-items: stretch;
  }

  .page-contact .contact-channels__rule {
    display: block;
    margin: 8px 22px;
  }

  .page-contact .contact-channel {
    padding: 30px 28px 28px;
  }

  .page-contact .contact-letter__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    gap: 44px;
    align-items: start;
  }

  .page-contact .contact-letter__media img {
    aspect-ratio: 4 / 3;
  }

  .page-contact .mail-row__summary {
    grid-template-columns: 48px 1fr 130px 16px;
    padding: 18px 20px;
  }

  .page-contact .mail-row__body {
    padding: 0 20px 20px 82px;
  }
}