.page-contact {
  --c-line: rgba(42, 74, 112, 0.85);
  --c-edge: rgba(242, 101, 34, 0.42);
  --c-soft-line: rgba(42, 74, 112, 0.35);
  --c-deep: rgba(11, 27, 51, 0.72);
  --c-glow: rgba(255, 176, 32, 0.16);
}

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

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin: 0 0 30px;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .breadcrumb li {
  display: flex;
  align-items: center;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin: 0 12px;
  color: var(--star);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--snow);
  border-bottom-color: var(--orange);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--snow);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + 48px) 0 76px;
  overflow: hidden;
  background:
    radial-gradient(120% 85% at 84% 0%, rgba(242, 101, 34, 0.16), transparent 62%),
    linear-gradient(180deg, var(--night) 0%, var(--lake) 100%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.16;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
}

.page-contact .contact-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .hero-grid {
  display: grid;
  gap: 44px 24px;
}

.page-contact .hero-copy .mono-label {
  color: var(--orange);
}

.page-contact .contact-hero h1 {
  margin: 18px 0 0;
  max-width: 15em;
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.05em;
  color: var(--snow);
}

.page-contact .hero-lede {
  margin: 24px 0 0;
  max-width: 42em;
  font-size: 17px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .hero-marks {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 36px;
  margin: 36px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--c-line);
  list-style: none;
}

.page-contact .hero-marks li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .hero-marks .num {
  font-family: var(--mono);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--snow);
  font-variant-numeric: tabular-nums;
}

.page-contact .hero-chart {
  position: relative;
  margin: 0;
  padding: 22px 22px 16px;
  border: 1px solid var(--c-line);
  background: rgba(11, 27, 51, 0.56);
}

.page-contact .hero-chart::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 42px;
  height: 3px;
  background: var(--orange);
}

.page-contact .reply-chart {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .hero-chart figcaption {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .chart-grid line {
  stroke: var(--star);
  stroke-width: 1;
  opacity: 0.4;
}

.page-contact .chart-axis {
  stroke: var(--star);
  stroke-width: 1;
}

.page-contact .chart-bar-bg {
  fill: rgba(42, 74, 112, 0.36);
}

.page-contact .chart-bar-fill {
  fill: var(--orange);
}

.page-contact .chart-bar-fill--soft {
  fill: rgba(242, 101, 34, 0.58);
}

.page-contact .chart-bar-fill--dim {
  fill: rgba(169, 184, 201, 0.5);
}

.page-contact .chart-text {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  fill: var(--mist);
}

.page-contact .chart-text--strong {
  fill: var(--snow);
}

.page-contact .chart-text--dim {
  fill: rgba(169, 184, 201, 0.66);
}

/* ---------- 章节签名 ---------- */
.page-contact .section-head {
  display: grid;
  gap: 14px;
  max-width: 58ch;
}

.page-contact .section-num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--orange);
}

.page-contact .section-title {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.3;
  letter-spacing: 0.06em;
  color: var(--snow);
}

.page-contact .section-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 01 三条通道 ---------- */
.page-contact .channel-section {
  position: relative;
  padding: 84px 0 76px;
}

.page-contact .channel-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--amber) 30%, var(--barley) 58%, var(--star) 100%);
  opacity: 0.72;
}

.page-contact .channel-grid {
  display: grid;
  gap: 1px;
  margin-top: 44px;
  background: var(--c-line);
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--lake);
  transition: background 220ms var(--ease);
}

.page-contact .channel--index {
  background: linear-gradient(165deg, rgba(42, 74, 112, 0.92), rgba(20, 48, 79, 0.96));
}

.page-contact .channel--fix {
  background: linear-gradient(165deg, rgba(20, 48, 79, 0.96), rgba(11, 27, 51, 0.96));
}

.page-contact .channel--biz {
  background: linear-gradient(165deg, rgba(42, 74, 112, 0.46), rgba(11, 27, 51, 0.96));
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: var(--amber);
  opacity: 0;
  transition: opacity 180ms var(--ease);
}

.page-contact .channel:has(.expand-trigger[aria-expanded="true"]) {
  background: linear-gradient(165deg, rgba(46, 82, 124, 1), rgba(20, 48, 79, 0.98));
}

.page-contact .channel:has(.expand-trigger[aria-expanded="true"])::after {
  opacity: 1;
}

.page-contact .channel-trigger {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 11px;
  width: 100%;
  padding: 30px 26px 32px;
  border: 0;
  border-top: 2px solid transparent;
  background: none;
  color: var(--snow);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 180ms var(--ease);
}

.page-contact .channel-trigger:hover {
  border-top-color: var(--c-edge);
}

.page-contact .channel-trigger:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -4px;
}

.page-contact .channel-trigger .expand-sign {
  position: absolute;
  top: 30px;
  right: 24px;
  color: var(--orange);
}

.page-contact .channel-code {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--orange);
}

.page-contact .channel-title {
  display: block;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--snow);
}

.page-contact .channel-brief {
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .expand-panel-inner {
  padding: 0 26px 32px;
}

.page-contact .expand-panel-inner > p {
  margin: 0 0 22px;
  padding-top: 4px;
  font-size: 14px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .channel-meta {
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid rgba(42, 74, 112, 0.9);
}

.page-contact .channel-meta dt {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel-meta dt:first-child {
  margin-top: 0;
}

.page-contact .channel-meta dd {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--snow);
}

.page-contact .mono-value {
  font-family: var(--mono);
  font-size: 13.5px;
  letter-spacing: 0.01em;
  color: var(--amber);
  word-break: break-all;
}

/* ---------- 02 响应时段 ---------- */
.page-contact .timing-section {
  padding: 84px 0 80px;
}

.page-contact .priority-list {
  display: grid;
  gap: 1px;
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
  background: var(--c-line);
}

.page-contact .priority {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  padding: 30px 26px 34px;
  background: var(--night);
}

.page-contact .priority--first {
  background: var(--lake);
}

.page-contact .priority--first::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--orange);
}

.page-contact .priority-rank {
  display: inline-block;
  padding: 5px 8px;
  border: 1px solid var(--c-edge);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-contact .priority h3 {
  margin: 0 0 10px;
  font-size: 17px;
  letter-spacing: 0.05em;
  color: var(--snow);
}

.page-contact .priority p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .timing-note {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--orange);
  font-size: 14px;
  line-height: 1.82;
  color: var(--mist);
}

/* ---------- 03 流程 ---------- */
.page-contact .flow-section {
  padding: 84px 0 88px;
  color: var(--ink);
}

.page-contact .flow-section .section-title {
  color: var(--ink);
}

.page-contact .flow-section .section-lead {
  color: var(--muted-ink);
}

.page-contact .flow-section .section-num {
  color: var(--orange);
}

.page-contact .flow-layout {
  display: grid;
  gap: 44px;
}

.page-contact .flow {
  margin: 40px 0 0;
  padding: 0 0 0 12px;
  list-style: none;
  counter-reset: flowstep;
}

.page-contact .flow-step {
  position: relative;
  padding: 0 0 32px 34px;
  border-left: 1px solid var(--c-soft-line);
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .flow-dot {
  position: absolute;
  top: 0;
  left: -12px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1px solid var(--orange);
  background: var(--snow);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-contact .flow-dot::before {
  counter-increment: flowstep;
  content: counter(flowstep, decimal-leading-zero);
}

.page-contact .flow-step h3 {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: 0.05em;
  color: var(--ink);
  transition: color 180ms var(--ease);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--muted-ink);
}

.page-contact .flow-step:hover h3 {
  color: var(--orange);
}

.page-contact .flow-aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .flow-aside .media-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-soft-line);
  background: var(--lake);
  aspect-ratio: 16 / 10;
}

.page-contact .flow-aside img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .aside-note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--c-soft-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted-ink);
}

/* ---------- 04 来信清单 ---------- */
.page-contact .checklist-section {
  padding: 84px 0 80px;
}

.page-contact .checklist {
  display: grid;
  gap: 1px;
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
  background: var(--c-line);
}

.page-contact .checklist li {
  position: relative;
  padding: 28px 24px 32px;
  background: var(--night);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), transparent);
  opacity: 0.55;
}

.page-contact .check-code {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .checklist h3 {
  margin: 14px 0 8px;
  font-size: 16px;
  letter-spacing: 0.05em;
  color: var(--snow);
}

.page-contact .checklist p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 05 联系方式 ---------- */
.page-contact .contact-section {
  padding: 84px 0 96px;
}

.page-contact .contact-layout {
  display: grid;
  gap: 34px;
  margin-top: 44px;
}

.page-contact .contact-cards {
  display: grid;
  gap: 1px;
  background: var(--c-line);
}

.page-contact .contact-card {
  padding: 26px 24px 30px;
  border-left: 3px solid transparent;
  background: var(--c-deep);
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-contact .contact-card:hover {
  border-left-color: var(--orange);
  background: rgba(20, 48, 79, 0.78);
}

.page-contact .contact-label {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .mono-value--lg {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: clamp(16px, 2.6vw, 22px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--snow);
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .address-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--c-line);
  background: rgba(11, 27, 51, 0.5);
}

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

.page-contact .address-figure figcaption {
  padding: 22px 24px 26px;
  border-top: 1px solid var(--c-line);
}

.page-contact .address-figure .mono-label {
  color: var(--amber);
}

.page-contact .address-figure p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--snow);
}

.page-contact .address-figure .contact-note {
  font-size: 13px;
  color: var(--mist);
}

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

@media (min-width: 860px) {
  .page-contact .priority-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .flow-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 20px;
    padding-left: 0;
  }

  .page-contact .flow-step {
    padding: 46px 0 0;
    border-left: 0;
    border-top: 1px solid var(--c-soft-line);
  }

  .page-contact .flow-step:last-child {
    padding-bottom: 0;
    border-top-color: var(--c-soft-line);
  }

  .page-contact .flow-dot {
    top: -11px;
    left: 0;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 0 64px;
    align-items: end;
  }

  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-contact .checklist {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-contact .contact-hero {
    padding-top: calc(var(--header-h) + 32px);
    padding-bottom: 56px;
  }

  .page-contact .channel-trigger,
  .page-contact .expand-panel-inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-contact .channel-trigger .expand-sign {
    right: 18px;
  }

  .page-contact .priority {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 26px 20px 30px;
  }

  .page-contact .priority--first::before {
    width: 100%;
    height: 3px;
    bottom: auto;
  }

  .page-contact .hero-marks {
    gap: 18px 28px;
  }

  .page-contact .hero-chart {
    padding: 16px 14px 12px;
  }
}
<<<END>>>