.page-contact {
  --ct-gap: clamp(1rem, 2.5vw, 2rem);
  --ct-pad: clamp(1.125rem, 2.6vw, 1.875rem);
  background-color: var(--ink-900);
  background-image:
    linear-gradient(to right, rgba(42, 74, 62, 0.30) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 74, 62, 0.30) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
  color: var(--paper);
}

.page-contact .contact-shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: var(--space-4);
  font-size: var(--fs-label);
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  color: var(--line);
}

.page-contact .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.page-contact .breadcrumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-head {
  display: grid;
  gap: var(--ct-gap);
  padding-block: clamp(1.5rem, 3.5vw, 2.75rem) clamp(2rem, 4vw, 3.25rem);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-title {
  margin: 0.85rem 0 0;
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-lede {
  max-width: 42ch;
  margin: var(--space-4) 0 0;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--paper-86);
}

.page-contact .contact-head-media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .contact-head-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-head-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(155deg, rgba(72, 242, 200, 0.18), transparent 52%),
    linear-gradient(0deg, rgba(7, 19, 15, 0.82), transparent 62%);
  pointer-events: none;
}

@media (min-width: 860px) {
  .page-contact .contact-head {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

/* ---------- 双栏 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: clamp(1.75rem, 3vw, 2.5rem);
  padding-block: clamp(2rem, 4vw, 3.25rem);
}

@media (min-width: 1000px) {
  .page-contact .contact-split {
    grid-template-columns: 336px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 4rem);
    align-items: start;
    padding-block: clamp(2.75rem, 5vw, 4.25rem);
  }

  .page-contact .contact-aside {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    align-self: start;
  }
}

/* ---------- 左侧联络卡 ---------- */
.page-contact .contact-card {
  position: relative;
  padding: var(--ct-pad);
  background: var(--ink-800);
  border: 1px solid var(--line);
  box-shadow: 10px 10px 0 rgba(18, 48, 39, 0.85);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--teal) 58%, transparent);
}

.page-contact .contact-card-title {
  margin: 0 0 0.35rem;
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
}

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

.page-contact .contact-field {
  padding-block: 0.95rem;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-field:first-child {
  border-top: 0;
  padding-top: 0.2rem;
}

.page-contact .contact-label {
  margin-bottom: 0.2rem;
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .contact-mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 1.35vw, 1.05rem);
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .contact-tel {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .contact-hours {
  display: flex;
  gap: 0.55rem;
  margin: 0;
  padding-top: 0.95rem;
  border-top: 1px solid var(--line-soft);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .hours-dot {
  flex: none;
  width: 7px;
  height: 7px;
  margin-top: 0.55rem;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 181, 71, 0.18);
}

/* ---------- 目录 ---------- */
.page-contact .spy-index {
  margin-top: 1.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.page-contact .spy-index ol {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .spy-link {
  display: flex;
  gap: 0.7rem;
  padding: 0.42rem 0.6rem;
  border-left: 2px solid transparent;
  font-size: var(--fs-small);
  color: var(--mist);
  text-decoration: none;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.page-contact .spy-link span {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  color: var(--teal);
  padding-top: 0.15rem;
}

.page-contact .spy-link:hover,
.page-contact .spy-link.is-active {
  color: var(--paper);
  border-left-color: var(--cyan);
  background: var(--cyan-soft);
}

.page-contact .spy-link:hover span,
.page-contact .spy-link.is-active span {
  color: var(--cyan);
}

/* ---------- 章节通用 ---------- */
.page-contact .ct-section + .ct-section {
  margin-top: clamp(2.5rem, 4.5vw, 3.75rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
}

.page-contact .ct-head {
  margin-bottom: clamp(1.25rem, 2.4vw, 1.75rem);
}

.page-contact .ct-head h2 {
  margin: 0.55rem 0 0;
  font-size: var(--fs-h2);
  line-height: var(--lh-tight);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .ct-note {
  max-width: 46ch;
  margin: 0.85rem 0 0;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--paper-86);
}

.page-contact .ct-tail {
  max-width: 52ch;
  margin: 1.35rem 0 0;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-tail a,
.page-contact .checklist-side-text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(72, 242, 200, 0.35);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.page-contact .ct-tail a:hover,
.page-contact .checklist-side-text a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 三种渠道 ---------- */
.page-contact .reach-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 720px) {
  .page-contact .reach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .reach-card {
  --reach-accent: var(--cyan);
  position: relative;
  padding: 1.2rem 1.1rem 1.3rem;
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .reach-card:nth-child(2) {
  --reach-accent: var(--amber);
}

.page-contact .reach-card:nth-child(3) {
  --reach-accent: var(--teal);
}

.page-contact .reach-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--reach-accent);
}

.page-contact .reach-title {
  margin: 0 0 0.55rem;
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .reach-text {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--paper-86);
}

.page-contact .reach-meta {
  margin: 0.9rem 0 0;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--line-soft);
  font-size: var(--fs-label);
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 事项分流 ---------- */
.page-contact .channel-list {
  display: grid;
}

.page-contact .channel-row {
  display: grid;
  gap: 0.55rem;
  padding: 1.15rem 0 1.2rem;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .channel-row:first-child {
  border-top: 1px solid var(--line-soft);
}

@media (min-width: 760px) {
  .page-contact .channel-row {
    grid-template-columns: 150px minmax(0, 1fr) auto;
    align-items: start;
    gap: 1.5rem;
  }
}

.page-contact .channel-name {
  margin: 0;
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .channel-desc {
  margin: 0;
  max-width: 60ch;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--paper-86);
}

.page-contact .channel-tag {
  justify-self: start;
  white-space: nowrap;
}

@media (min-width: 760px) {
  .page-contact .channel-tag {
    justify-self: end;
    margin-top: 0.15rem;
  }
}

/* ---------- 三步流程 ---------- */
.page-contact .process-wrap {
  display: grid;
  gap: clamp(1.25rem, 2.6vw, 2rem);
}

@media (min-width: 900px) {
  .page-contact .process-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(2rem, 3.5vw, 3rem);
  }
}

.page-contact .process-grid {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-contact .process-step {
  position: relative;
  padding: 1.1rem 1.15rem 1.2rem 1.15rem;
  background: var(--ink-700);
  border: 1px solid var(--line);
}

.page-contact .step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .step-title {
  margin: 0.4rem 0 0.5rem;
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--paper);
}

.page-contact .step-text {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--paper-86);
}

.page-contact .process-media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .process-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .process-caption {
  padding: 0.75rem 0.9rem;
  border-top: 1px solid var(--line);
  font-size: var(--fs-label);
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 站点信息条 ---------- */
.page-contact .site-strip {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-contact .site-strip {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  }
}

.page-contact .site-strip-item {
  padding: 1.15rem 1.2rem 1.25rem;
  background: var(--ink-800);
}

.page-contact .site-strip-item:first-child {
  background: var(--ink-700);
}

.page-contact .site-strip-value {
  margin: 0.6rem 0 0;
  font-size: var(--fs-h3);
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ---------- 反馈清单 ---------- */
.page-contact .checklist-grid {
  display: grid;
  gap: clamp(1.25rem, 2.6vw, 2rem);
}

@media (min-width: 860px) {
  .page-contact .checklist-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

.page-contact .check-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .check-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.7rem 0.95rem;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--paper-86);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .check-list li:last-child {
  border-bottom: 0;
}

.page-contact .check-box {
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 0.3rem;
  border: 1px solid var(--teal);
  background: rgba(28, 122, 99, 0.16);
  position: relative;
}

.page-contact .check-box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 4px;
  height: 8px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(40deg);
}

.page-contact .checklist-side {
  padding: 1.1rem 1.15rem 1.2rem;
  border-left: 2px solid var(--amber);
  background: var(--ink-700);
}

.page-contact .checklist-side-text {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--paper-86);
}

.page-contact .checklist-side-link {
  margin: 0.9rem 0 0;
}

.page-contact .checklist-side-link a {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  font-size: var(--fs-small);
  color: var(--ink-900);
  background: var(--cyan);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: background 0.15s ease;
}

.page-contact .checklist-side-link a:hover {
  background: var(--paper);
}

/* ---------- 邮件模板 ---------- */
.page-contact .mail-template {
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .mail-template summary {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.05rem;
  cursor: pointer;
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cyan);
  list-style: none;
}

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

.page-contact .mail-template summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--amber);
}

.page-contact .mail-template[open] summary::before {
  content: "−";
}

.page-contact .mail-template summary:hover {
  background: var(--cyan-soft);
}

.page-contact .mail-template-body {
  margin: 0;
  padding: 1rem 1.05rem 1.15rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.95;
  color: var(--paper-86);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--ink-700);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .spy-link,
  .page-contact .breadcrumbs a,
  .page-contact .checklist-side-link a,
  .page-contact .mail-template summary {
    transition: none;
  }
}
<<<END>>>