.page-contact {
  --contact-rule: 1px solid var(--grid-line);
  --contact-pad: clamp(56px, 8vw, 104px);
}

/* ---------- Hero ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-deep);
  padding-block: clamp(92px, 12vw, 156px) clamp(40px, 6vw, 72px);
}

.page-contact .contact-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .contact-hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.35) brightness(.4) contrast(1.08);
}

.page-contact .contact-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 78% 6%, rgba(53, 224, 208, .10), transparent 58%),
    linear-gradient(180deg, rgba(6, 10, 18, .84) 0%, rgba(11, 18, 32, .93) 62%, var(--ink) 100%);
}

.page-contact .contact-hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: repeating-linear-gradient(0deg, rgba(247, 250, 255, .035) 0 1px, transparent 1px 4px);
}

.page-contact .contact-hero-body {
  position: relative;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(28px, 4vw, 44px);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
}

.page-contact .contact-crumb-link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-contact .contact-crumb-link:hover,
.page-contact .contact-crumb-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .contact-crumb-sep {
  color: var(--num-idle);
}

.page-contact .contact-crumb-current {
  color: var(--text);
  font-weight: 700;
}

/* ---------- Hero 文本 ---------- */
.page-contact .contact-eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .contact-h1 {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 760px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.125rem, 6vw, 4.125rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-contact .contact-lead {
  margin: 0;
  max-width: 34em;
  padding-left: clamp(14px, 2vw, 20px);
  border-left: 2px solid var(--amber);
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-hero-facts {
  list-style: none;
  margin: clamp(32px, 5vw, 52px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  border-top: var(--contact-rule);
}

.page-contact .contact-hero-facts li {
  flex: 1 1 210px;
  min-width: 0;
  padding: 16px 0 0;
}

.page-contact .contact-fact-k {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-fact-v {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(.9375rem, 1.6vw, 1.0625rem);
  letter-spacing: .01em;
  color: var(--text);
  overflow-wrap: anywhere;
}

@media (min-width: 780px) {
  .page-contact .contact-hero-facts li {
    padding: 18px 28px 0;
    border-left: var(--contact-rule);
  }
  .page-contact .contact-hero-facts li:first-child {
    padding-left: 0;
    border-left: 0;
  }
}

/* ---------- 通用章节 ---------- */
.page-contact .contact-sec {
  padding-block: var(--contact-pad);
  border-top: var(--contact-rule);
}

.page-contact .contact-sec-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .contact-sec-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.625rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--amber);
}

.page-contact .contact-sec-en {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.125rem);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--text);
}

@media (min-width: 768px) {
  .page-contact .contact-sec-head {
    gap: 28px;
    margin-bottom: 48px;
  }
}

/* ---------- 渠道条目 ---------- */
.page-contact .contact-channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--contact-rule);
}

.page-contact .contact-channel {
  position: relative;
  display: grid;
  gap: 14px;
  padding: clamp(22px, 3.2vw, 38px) 0;
  border-bottom: var(--contact-rule);
  transition: background var(--speed) var(--ease);
}

.page-contact .contact-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--amber);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--speed) var(--ease);
}

.page-contact .contact-channel:hover,
.page-contact .contact-channel:focus-within {
  background: rgba(19, 28, 43, .6);
}

.page-contact .contact-channel:hover::before,
.page-contact .contact-channel:focus-within::before {
  transform: scaleY(1);
}

.page-contact .contact-channel-id {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-contact .contact-channel-index {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber-deep);
}

.page-contact .contact-channel-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-20);
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .contact-channel-value {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.125rem, 2.4vw, 1.5rem);
  letter-spacing: .01em;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel-desc {
  margin: 0 0 10px;
  max-width: 54ch;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-channel-hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.6;
  letter-spacing: .02em;
  color: rgba(53, 224, 208, .72);
  transition: color var(--speed) var(--ease);
}

.page-contact .contact-channel:hover .contact-channel-hint {
  color: var(--cyan);
}

@media (min-width: 860px) {
  .page-contact .contact-channel {
    grid-template-columns: 200px 1fr;
    gap: 32px;
    padding-left: 22px;
  }
  .page-contact .contact-channel-id {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

/* ---------- 准备清单 ---------- */
.page-contact .contact-prep-grid {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
}

.page-contact .contact-prep-intro .contact-sec-num {
  display: block;
  margin-bottom: 14px;
}

.page-contact .contact-prep-intro .contact-sec-title {
  margin-bottom: 16px;
}

.page-contact .contact-prep-text {
  margin: 0 0 24px;
  max-width: 26em;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--contact-rule);
}

.page-contact .contact-check-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: var(--contact-rule);
}

.page-contact .contact-check-box {
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 4px;
  border: 1px solid var(--grid-line);
  background: rgba(19, 28, 43, .72);
}

.page-contact .contact-check-box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 9px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: rotate(40deg);
  opacity: .5;
}

.page-contact .contact-check-name {
  display: block;
  font-size: var(--fs-14);
  line-height: 1.5;
  color: var(--text);
}

.page-contact .contact-check-note {
  display: block;
  margin-top: 3px;
  font-size: var(--fs-12);
  line-height: 1.65;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-contact .contact-prep-grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
}

/* ---------- 合作与接口 ---------- */
.page-contact .contact-biz-head {
  display: none;
}

.page-contact .contact-biz-row {
  display: grid;
  gap: 16px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-bottom: var(--contact-rule);
}

.page-contact .contact-biz-code {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

.page-contact .contact-biz-name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-20);
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .contact-biz-desc {
  margin: 0;
  max-width: 32em;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-biz-need ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-biz-need li {
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-biz-need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .contact-biz-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 62ch;
  padding-left: 16px;
  border-left: 2px solid var(--grid-line);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-biz-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, .45);
}

.page-contact .contact-biz-foot a:hover,
.page-contact .contact-biz-foot a:focus-visible {
  border-bottom-color: var(--cyan);
}

@media (min-width: 880px) {
  .page-contact .contact-biz-head {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 40px;
    padding: 0 0 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: var(--contact-rule);
  }
  .page-contact .contact-biz-row {
    position: relative;
    grid-template-columns: 5fr 7fr;
    gap: 40px;
    padding-left: 22px;
  }
  .page-contact .contact-biz-row::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--amber);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--speed) var(--ease);
  }
  .page-contact .contact-biz-row:hover::before {
    transform: scaleY(1);
  }
}

/* ---------- 回复时段 ---------- */
.page-contact .contact-timeline {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .contact-timeline-track {
  position: relative;
  height: 48px;
  border: var(--contact-rule);
  overflow: hidden;
  background-color: rgba(19, 28, 43, .55);
  background-image: linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: calc(100% / 24) 100%;
}

.page-contact .contact-timeline-band {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  border-left: 1px solid var(--amber);
  border-right: 1px solid var(--amber);
  background: linear-gradient(90deg, rgba(242, 176, 60, .12), rgba(242, 176, 60, .5) 14%, rgba(242, 176, 60, .5) 86%, rgba(242, 176, 60, .12));
}

.page-contact .contact-timeline-band::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  top: 50%;
  height: 1px;
  background: var(--amber);
  opacity: .75;
}

.page-contact .contact-timeline-labels {
  position: relative;
  height: 18px;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-contact .contact-timeline-labels span {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  white-space: nowrap;
}

.page-contact .contact-timeline-labels span:nth-child(1) { left: 0; transform: none; }
.page-contact .contact-timeline-labels span:nth-child(2) { left: 25%; }
.page-contact .contact-timeline-labels span:nth-child(3) { left: 37.5%; color: var(--amber); }
.page-contact .contact-timeline-labels span:nth-child(4) { left: 50%; }
.page-contact .contact-timeline-labels span:nth-child(5) { left: 75%; color: var(--amber); }
.page-contact .contact-timeline-labels span:nth-child(6) { right: 0; left: auto; transform: none; }

.page-contact .contact-hours-notes {
  margin-top: clamp(20px, 3vw, 32px);
  display: grid;
  gap: 16px;
}

.page-contact .contact-hours-notes p {
  margin: 0;
  padding-left: 16px;
  border-left: 1px solid var(--grid-line);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--muted);
}

@media (min-width: 760px) {
  .page-contact .contact-timeline-labels { font-size: 11px; }
  .page-contact .contact-hours-notes {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

/* ---------- 地址 ---------- */
.page-contact .contact-visit-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-contact .contact-visit-main {
  padding: clamp(20px, 3vw, 28px);
  border: var(--contact-rule);
  background: rgba(19, 28, 43, .42);
}

.page-contact .contact-visit-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-visit-addr {
  margin: 0 0 12px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--text);
}

.page-contact .contact-visit-note {
  margin: 0 0 18px;
  max-width: 30em;
  font-size: var(--fs-12);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-visit-meta {
  margin: 0;
  padding-top: 12px;
  border-top: var(--contact-rule);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-contact .contact-visit-figure {
  margin: 0;
  border: var(--contact-rule);
  overflow: hidden;
  background: var(--panel);
}

.page-contact .contact-visit-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(.4) brightness(.62);
}

.page-contact .contact-visit-cap {
  padding: 10px 14px;
  border-top: var(--contact-rule);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--muted);
}

@media (min-width: 820px) {
  .page-contact .contact-visit-grid {
    grid-template-columns: 7fr 5fr;
  }
  .page-contact .contact-visit-figure {
    justify-self: end;
    width: 100%;
    max-width: 360px;
  }
}

/* ---------- 相关页面 ---------- */
.page-contact .contact-related {
  border-top: var(--contact-rule);
  padding-block: clamp(28px, 4vw, 44px);
}

.page-contact .contact-related-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
}

.page-contact .contact-related-label {
  margin-right: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-related-link {
  padding-bottom: 2px;
  font-size: var(--fs-14);
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--grid-line);
  transition: color var(--speed) var(--ease), border-color var(--speed) var(--ease);
}

.page-contact .contact-related-link:hover,
.page-contact .contact-related-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel::before,
  .page-contact .contact-biz-row::before,
  .page-contact .contact-channel-hint,
  .page-contact .contact-channel,
  .page-contact .contact-crumb-link,
  .page-contact .contact-related-link {
    transition: none;
  }
}
<<<END>>>