.page-contact {
  --c-line: rgba(30, 63, 158, .18);
  --c-line-strong: rgba(16, 33, 79, .3);
  padding-top: 22px;
  padding-bottom: 58px;
  color: var(--ink);
  font-family: var(--font-body);
  background: var(--paper);
}

.page-contact a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.page-contact .contact-topline {
  height: 6px;
  border-radius: var(--r-pill);
  margin-bottom: 26px;
  background: linear-gradient(90deg, var(--indigo) 0%, var(--indigo) 22%, var(--red) 58%, var(--gold) 100%);
}

/* 首屏 */
.page-contact .contact-hero {
  display: grid;
  gap: 26px;
  align-items: center;
}

.page-contact .contact-hero__figure {
  margin: 0;
  order: -1;
}

.page-contact .contact-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 2px solid var(--indigo-deep);
  border-radius: var(--r-lg);
  background: var(--paper-2);
}

.page-contact .contact-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--red-deep);
}

.page-contact .contact-kicker::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--red);
}

.page-contact h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 56px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--indigo-deep);
}

.page-contact .contact-hero .lead {
  margin: 0 0 22px;
  max-width: 40em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 双栏骨架 */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  margin-top: 46px;
}

.page-contact .contact-main,
.page-contact .contact-rail {
  min-width: 0;
}

/* 章节头 */
.page-contact .contact-sec {
  margin-top: 54px;
}

.page-contact .contact-sec:first-child {
  margin-top: 0;
}

.page-contact .contact-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 20px;
}

.page-contact .contact-sec__idx {
  font-family: var(--font-mono);
  font-size: clamp(26px, 5.4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--indigo);
  letter-spacing: -.02em;
}

.page-contact h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.26;
  color: var(--indigo-deep);
}

.page-contact h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.45;
  color: var(--indigo-deep);
}

.page-contact p {
  margin: 0 0 10px;
  line-height: 1.8;
}

.page-contact .sec-sub {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

/* 插画 */
.page-contact .contact-illus {
  margin: 0 0 20px;
}

.page-contact .contact-illus img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 2px solid var(--paper-2);
  border-radius: var(--r-md);
}

/* 通道卡片 */
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .channel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 20px;
  background: var(--cream);
  border: 2px solid var(--c-line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
  transition: transform .16s ease, border-color .16s ease;
}

.page-contact .channel:hover {
  transform: translateY(-4px);
  border-color: var(--indigo);
}

.page-contact .channel__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--red-deep);
}

.page-contact .channel__value {
  margin: 2px 0 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--red-deep);
  word-break: break-word;
}

.page-contact .channel p:not(.channel__value):not(.channel__fit) {
  font-size: 15.5px;
  color: var(--ink);
}

.page-contact .channel__fit {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--c-line);
  font-size: 15px;
  color: var(--muted);
}

.page-contact .channel__fit a {
  color: var(--red-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 来信要点 */
.page-contact .write-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .write-item {
  padding: 16px 18px;
  background: var(--paper-2);
  border-left: 4px solid var(--red);
  border-radius: var(--r-md);
}

.page-contact .write-item h3 {
  font-size: 17px;
}

.page-contact .write-item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
}

.page-contact .write-item__why {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--red-deep);
}

/* 模板块 */
.page-contact .letter {
  margin-top: 20px;
  padding: 18px 20px;
  background: var(--indigo-deep);
  border-radius: var(--r-md);
  overflow-x: auto;
}

.page-contact .letter__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-contact .letter pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 2;
  color: var(--cream);
  white-space: pre-wrap;
  word-break: break-word;
}

/* 回复时间 */
.page-contact .reply-big {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 8vw, 46px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--indigo);
}

.page-contact .reply-sub {
  margin: 0 0 18px;
  font-size: 15px;
  color: var(--muted);
}

.page-contact .reply-notes {
  display: grid;
  gap: 12px;
}

.page-contact .reply-note {
  padding: 14px 16px;
  background: var(--cream);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
}

.page-contact .reply-note strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--indigo-deep);
}

.page-contact .reply-note p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
}

/* 合作与纠错 */
.page-contact .coop-list {
  display: grid;
  gap: 18px;
}

.page-contact .coop-item {
  padding-top: 14px;
  border-top: 3px solid var(--gold);
}

.page-contact .coop-item p {
  font-size: 15.5px;
}

.page-contact .coop-prefix {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted);
}

.page-contact .coop-prefix .mono-label {
  color: var(--red-deep);
  font-weight: 700;
}

/* 地址 */
.page-contact .visit-card {
  padding: 20px;
  background: var(--paper-2);
  border: 2px solid var(--indigo-deep);
  border-radius: 0;
}

.page-contact .visit-addr {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 4.2vw, 22px);
  line-height: 1.5;
  color: var(--indigo-deep);
}

.page-contact .visit-meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--c-line-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--indigo-deep);
  word-break: break-word;
}

/* 自查清单 */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .checklist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--c-line);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact .checklist li:first-child {
  border-top: 1px dashed var(--c-line);
}

.page-contact .checklist__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--red-deep);
}

/* 右侧信息带 */
.page-contact .contact-rail {
  padding: 22px 20px;
  background: var(--paper-2);
  border: 2px solid var(--indigo-deep);
  border-radius: 0;
}

.page-contact .rail-block + .rail-block {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--c-line-strong);
}

.page-contact .rail-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--red-deep);
}

.page-contact .rail-time {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.3;
  color: var(--indigo-deep);
}

.page-contact .rail-text {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .rail-mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--red-deep);
  word-break: break-word;
}

.page-contact .rail-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--red-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .rail-icp {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* 收尾 */
.page-contact .contact-tail {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 2px solid var(--c-line);
}

.page-contact .contact-tail__line {
  margin: 0 0 12px;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--indigo-deep);
}

.page-contact .contact-tail__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--muted);
}

.page-contact .contact-tail__links a {
  color: var(--red-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 断点 */
@media (min-width: 700px) {
  .page-contact .write-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .reply-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .coop-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-contact .channel:nth-child(2) {
    margin-left: 26px;
  }

  .page-contact .channel:nth-child(3) {
    margin-left: 52px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 44px;
  }

  .page-contact .contact-hero__figure {
    order: 0;
  }
}

@media (min-width: 960px) {
  .page-contact {
    padding-bottom: 76px;
  }

  .page-contact .contact-body {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 52px;
    align-items: start;
    margin-top: 56px;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--header-offset) + 14px);
  }

  .page-contact .contact-sec {
    margin-top: 64px;
  }

  .page-contact .contact-sec:first-child {
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel {
    transition: none;
  }

  .page-contact .channel:hover {
    transform: none;
  }
}
<<<END>>>