.page-contact {
  --contact-panel: #0c1e18;
  --contact-panel-2: #111c16;
  --contact-rule: rgba(242, 237, 226, 0.14);
  background: var(--ink-900);
  color: var(--bone);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(1rem, 3vw, 1.6rem) clamp(2rem, 5vw, 3.4rem);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    repeating-linear-gradient(90deg, rgba(242, 237, 226, 0.045) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(242, 237, 226, 0.035) 0 1px, transparent 1px 96px);
  mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -34%;
  right: -22%;
  width: min(820px, 96vw);
  aspect-ratio: 1 / 1;
  background: linear-gradient(152deg, rgba(91, 122, 86, 0.34) 0%, rgba(8, 27, 22, 0) 66%);
  clip-path: polygon(30% 0, 100% 0, 100% 74%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
  margin-top: clamp(1.1rem, 3vw, 1.9rem);
}

.page-contact .contact-hero h1 {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.95rem, 6.4vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-contact .contact-hero h1 em {
  font-style: normal;
  color: var(--lime);
}

.page-contact .contact-hero-lead {
  margin-top: 1.05rem;
  max-width: 58ch;
  color: var(--bone-dim);
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
  line-height: 1.8;
}

.page-contact .contact-hero-metrics {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
  border-top: 1px solid var(--contact-rule);
  padding-top: 1.1rem;
}

.page-contact .contact-hero-metrics li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.page-contact .contact-metric-num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4vw, 1.75rem);
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.page-contact .contact-metric-label {
  font-size: 0.82rem;
  color: var(--bone-dim);
  line-height: 1.5;
}

.page-contact .contact-hero-panel {
  position: relative;
  align-self: start;
  background: var(--contact-panel);
  border-left: 3px solid var(--lime);
  padding: 1.15rem 1.2rem 1.3rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-contact .contact-panel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-contact .contact-panel-time {
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.6vw, 2rem);
  font-weight: 700;
  color: var(--bone);
  letter-spacing: 0.02em;
}

.page-contact .contact-panel-note {
  margin: 0.6rem 0 1.05rem;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--bone-dim);
}

.page-contact .contact-hero-panel .btn {
  display: inline-block;
}

/* ---------- 主体分栏 ---------- */
.page-contact .contact-body {
  padding-block: clamp(1.4rem, 4vw, 2.4rem);
}

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 2.8rem);
  align-items: start;
}

/* ---------- 左栏：联系渠道 ---------- */
.page-contact .contact-aside-inner {
  background: var(--contact-panel-2);
  border: 1px solid var(--contact-rule);
  border-top: 3px solid var(--moss);
  padding: clamp(1.1rem, 3vw, 1.6rem);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .contact-aside-title {
  margin: 0.45rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.4vw, 1.55rem);
  line-height: 1.25;
  color: var(--bone);
}

.page-contact .contact-aside-lead {
  margin: 0.6rem 0 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--bone-dim);
}

.page-contact .contact-channel-list {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-contact .contact-channel {
  display: grid;
  gap: 0.22rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--contact-rule);
}

.page-contact .contact-channel-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-contact .contact-channel-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3vw, 1.24rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--bone);
  word-break: break-word;
}

.page-contact .contact-channel-value--mail {
  color: var(--lime);
}

.page-contact .contact-channel-value--phone {
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-contact .contact-channel-hint {
  display: block;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--bone-dim);
}

.page-contact .contact-channel-figure {
  margin: 1.2rem 0 0;
}

.page-contact .contact-channel-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--contact-rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-contact .contact-aside-links {
  margin-top: 1.15rem;
  display: grid;
  gap: 0.5rem;
  border-top: 1px solid var(--contact-rule);
  padding-top: 0.9rem;
}

/* ---------- 右栏区块 ---------- */
.page-contact .contact-section + .contact-section {
  margin-top: clamp(2.2rem, 6vw, 3.6rem);
  padding-top: clamp(1.6rem, 4vw, 2.4rem);
  border-top: 1px solid var(--contact-rule);
}

.page-contact .contact-figure {
  margin: 0 0 clamp(1.2rem, 3vw, 1.8rem);
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--contact-rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

.page-contact .contact-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--moss);
  font-family: var(--font-editorial);
}

.page-contact .contact-section .section-note {
  max-width: 62ch;
}

/* ---------- 合作方向卡片 ---------- */
.page-contact .contact-tracks {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-contact .contact-track {
  position: relative;
  background: var(--contact-panel-2);
  border: 1px solid var(--contact-rule);
  padding: 1.1rem 1.1rem 1.2rem 1.4rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  transition: transform var(--ease), border-color var(--ease);
}

.page-contact .contact-track::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--moss);
  transition: background var(--ease);
}

.page-contact .contact-track--ice::before {
  background: var(--ice);
}

.page-contact .contact-track--gold::before {
  background: var(--gold);
}

.page-contact .contact-track--clay::before {
  background: var(--clay);
}

.page-contact .contact-track-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--rock);
  color: rgba(242, 237, 226, 0.4);
}

.page-contact .contact-track-title {
  margin: 0.35rem 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.35;
  color: var(--bone);
}

.page-contact .contact-track-text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--bone-dim);
}

.page-contact .contact-track-meta {
  margin: 0.7rem 0 0;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--contact-rule);
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--moss);
}

/* ---------- 推进流程 ---------- */
.page-contact .contact-steps {
  list-style: none;
  margin: clamp(1.2rem, 3vw, 1.8rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.page-contact .contact-step-details {
  background: var(--contact-panel-2);
  border: 1px solid var(--contact-rule);
  border-left: 3px solid var(--rock);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-contact .contact-step-details[open] {
  border-left-color: var(--gold);
  background: #0e231b;
}

.page-contact .contact-step-summary {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.12rem 0.7rem;
  align-items: center;
  padding: 0.85rem 1rem;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .contact-step-summary::marker {
  content: "";
}

.page-contact .contact-step-index {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold);
}

.page-contact .contact-step-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--bone);
  line-height: 1.3;
}

.page-contact .contact-step-time {
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--bone-dim);
}

.page-contact .contact-step-body {
  padding: 0 1rem 1rem 1rem;
  border-top: 1px solid var(--contact-rule);
  margin-top: 0.2rem;
}

.page-contact .contact-step-body p {
  margin: 0.7rem 0 0;
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--bone-dim);
}

/* ---------- 准备清单 ---------- */
.page-contact .contact-checklist {
  list-style: none;
  margin: clamp(1.2rem, 3vw, 1.8rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-contact .contact-check {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  background: linear-gradient(100deg, rgba(43, 52, 47, 0.65) 0%, rgba(17, 28, 22, 0.85) 60%);
  border: 1px solid var(--contact-rule);
  padding: 0.9rem 1rem;
}

.page-contact .contact-check-num {
  flex: 0 0 auto;
  width: 1.9rem;
  height: 1.9rem;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-900);
  background: var(--ice);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 74% 100%, 0 100%);
}

.page-contact .contact-check-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--bone);
  line-height: 1.35;
}

.page-contact .contact-check p {
  margin: 0.3rem 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--bone-dim);
}

.page-contact .contact-checklist-note {
  margin: 1.1rem 0 0;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--moss);
  background: rgba(91, 122, 86, 0.12);
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--bone-dim);
}

.page-contact .contact-checklist-note a {
  color: var(--ice);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 底部信息带 ---------- */
.page-contact .contact-strip {
  margin-top: clamp(2.4rem, 6vw, 4.2rem);
  background: var(--rock);
  border-top: 3px solid var(--lime);
  padding-block: clamp(1.5rem, 4vw, 2.4rem);
}

.page-contact .contact-strip-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
}

.page-contact .contact-strip-item {
  border-top: 1px solid var(--line-strong);
  padding-top: 0.75rem;
}

.page-contact .contact-strip-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(242, 237, 226, 0.55);
}

.page-contact .contact-strip-value {
  margin: 0.35rem 0 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--bone);
  word-break: break-word;
}

.page-contact .contact-strip-value--lime {
  color: var(--lime);
  font-family: var(--font-mono);
}

.page-contact .contact-strip-value--gold {
  color: var(--gold);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-contact .contact-strip-sub {
  margin: 0.4rem 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
}

.page-contact .contact-strip-sub a {
  color: var(--bone-dim);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 链接与按钮微调 ---------- */
.page-contact .btn--lime {
  display: inline-block;
  padding: 0.62rem 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--ink-900);
  background: var(--lime);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% 66%, calc(100% - 12px) 100%, 0 100%);
  transition: transform var(--ease), background var(--ease);
}

.page-contact .btn--lime:hover {
  transform: translateY(-2px);
  background: #c9ff66;
}

.page-contact .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.84rem;
  color: var(--bone-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .link-arrow::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--lime);
}

.page-contact .link-arrow:hover {
  color: var(--bone);
  border-bottom-color: var(--lime);
}

/* ---------- 悬停展开提示（仅指针设备） ---------- */
@media (hover: hover) and (pointer: fine) {
  .page-contact .contact-channel-hint {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 220ms ease, opacity var(--ease);
  }

  .page-contact .contact-channel:hover .contact-channel-hint,
  .page-contact .contact-channel:focus-within .contact-channel-hint {
    max-height: 6rem;
    opacity: 1;
  }

  .page-contact .contact-track:hover {
    transform: translateY(-2px);
    border-color: var(--line-strong);
  }

  .page-contact .contact-track:hover::before {
    background: var(--lime);
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-hero-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-contact .contact-hero-metrics li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }

  .page-contact .contact-tracks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-strip-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面：左窄右宽 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-contact .contact-layout {
    grid-template-columns: minmax(280px, 4fr) minmax(0, 7fr);
    gap: clamp(2rem, 4vw, 3.2rem);
  }

  .page-contact .contact-aside-inner {
    position: sticky;
    top: 6.5rem;
  }

  .page-contact .contact-tracks {
    gap: clamp(1rem, 2vw, 1.4rem);
  }

  .page-contact .contact-strip-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.4rem;
  }

  .page-contact .contact-strip-item + .contact-strip-item {
    padding-left: 1.2rem;
    border-left: 1px solid rgba(242, 237, 226, 0.22);
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero h1 {
    font-size: clamp(2.6rem, 4vw, 3.5rem);
  }
}

/* ---------- 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-track,
  .page-contact .btn--lime,
  .page-contact .link-arrow,
  .page-contact .contact-channel-hint {
    transition: none;
  }

  .page-contact .contact-track:hover,
  .page-contact .btn--lime:hover {
    transform: none;
  }
}
<<<END>>>