.page-contact {
  --pc-gap: clamp(58px, 8vw, 100px);
  --pc-pad: clamp(20px, 3vw, 34px);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(80px, 11vw, 132px);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.85;
  background:
    radial-gradient(circle at 14% 6%, rgba(63, 224, 208, 0.07), transparent 40%),
    radial-gradient(circle at 86% 54%, rgba(154, 107, 255, 0.07), transparent 44%),
    var(--ink);
}

.page-contact .container {
  width: min(100% - (var(--shell-pad) * 2), 1120px);
  margin-inline: auto;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: clamp(26px, 4vw, 52px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(168, 180, 194, 0.72);
}

.page-contact .breadcrumb__item {
  color: inherit;
  text-decoration: none;
}

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

.page-contact a.breadcrumb__item:hover {
  color: var(--cyan);
}

.page-contact .breadcrumb__sep {
  color: var(--edge);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-top: clamp(26px, 4vw, 50px);
  padding-bottom: clamp(46px, 6vw, 80px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -6%;
  right: -14%;
  width: 58%;
  height: 74%;
  background: linear-gradient(148deg, rgba(63, 224, 208, 0.18), rgba(154, 107, 255, 0.12) 52%, rgba(10, 18, 32, 0) 84%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 56%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0 0 clamp(16px, 2.2vw, 24px);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 5.4vw, 70px);
  line-height: 1.12;
  letter-spacing: 0.06em;
}

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

.page-contact .lede {
  max-width: 34em;
  margin: 0 0 clamp(22px, 3vw, 30px);
  font-size: 1.02rem;
  color: rgba(243, 239, 228, 0.78);
}

.page-contact .hero-facts {
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .hero-facts li {
  position: relative;
  padding-left: 22px;
  font-size: 0.95rem;
  color: rgba(168, 180, 194, 0.92);
}

.page-contact .hero-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 12px;
  height: 2px;
  background: var(--clay);
}

.page-contact .contact-hero__media {
  margin: 0;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-contact .media-frame__media {
  display: block;
}

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

.page-contact .media-frame__cap {
  padding: 12px 16px;
  border-top: var(--line);
  background: rgba(10, 18, 32, 0.7);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  margin-top: var(--pc-gap);
}

.page-contact .chapter-marker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.page-contact .chapter-marker__num {
  color: var(--amber);
  font-weight: 600;
}

.page-contact .chapter-marker__label {
  color: rgba(168, 180, 194, 0.72);
}

.page-contact .chapter-marker::after {
  content: "";
  flex: none;
  width: 48px;
  height: 2px;
  background: var(--clay);
}

.page-contact .section-title {
  max-width: 22em;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.24;
  letter-spacing: 0.04em;
}

.page-contact .section-lede {
  max-width: 36em;
  margin: 0 0 clamp(26px, 3.4vw, 40px);
  color: rgba(168, 180, 194, 0.9);
}

/* ---------- 接线台 ---------- */
.page-contact .board {
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
}

.page-contact .board__rail {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-contact .board__tab {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  flex: none;
  padding: 12px 16px;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-hard-sm);
  color: rgba(243, 239, 228, 0.84);
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

.page-contact .board__tab-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .board__panels {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-contact .board__panel {
  padding: var(--pc-pad);
  border: var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  scroll-margin-top: 112px;
}

.page-contact .board__panel:nth-child(2) {
  border-left-color: var(--amber);
}

.page-contact .board__panel:nth-child(3) {
  border-left-color: var(--violet);
}

.page-contact .board__panel-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.page-contact .board__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 48px;
  height: 48px;
  border: var(--line);
  border-radius: var(--radius);
  background: rgba(10, 18, 32, 0.6);
  color: var(--cyan);
}

.page-contact .board__panel:nth-child(2) .board__icon {
  color: var(--amber);
}

.page-contact .board__panel:nth-child(3) .board__icon {
  color: var(--violet);
}

.page-contact .board__icon svg {
  display: block;
  width: 24px;
  height: 24px;
}

.page-contact .board__kicker {
  margin: 0 0 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(168, 180, 194, 0.7);
}

.page-contact .board__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2.2vw, 25px);
  letter-spacing: 0.05em;
}

.page-contact .board__panel > p {
  max-width: 34em;
  margin: 0 0 14px;
  color: rgba(243, 239, 228, 0.8);
}

.page-contact .copy-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 16px 0 18px;
  padding: 12px 14px;
  border: 1px solid rgba(63, 224, 208, 0.32);
  border-radius: var(--radius);
  background: rgba(63, 224, 208, 0.06);
}

.page-contact .copy-line__text {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--amber);
  word-break: break-all;
}

.page-contact .copy-btn {
  margin-left: auto;
  padding: 7px 14px;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  background: transparent;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .copy-btn.is-done {
  border-color: var(--moss);
  color: var(--moss);
  background: rgba(110, 156, 127, 0.12);
}

.page-contact .panel-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .panel-points li {
  position: relative;
  padding-left: 18px;
  font-size: 0.94rem;
  color: rgba(168, 180, 194, 0.92);
}

.page-contact .panel-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.84em;
  width: 8px;
  height: 2px;
  background: var(--moss);
}

/* ---------- 分流四条线 ---------- */
.page-contact .routing {
  display: grid;
  gap: clamp(16px, 2vw, 22px);
}

.page-contact .routing__card {
  padding: 20px 20px 22px;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-hard-sm);
  transition: border-color 0.24s ease;
}

.page-contact .routing__card:hover {
  border-color: var(--cyan);
}

.page-contact .routing__no {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: rgba(154, 107, 255, 0.9);
}

.page-contact .routing__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.06em;
}

.page-contact .routing__body {
  margin: 0 0 12px;
  font-size: 0.93rem;
  color: rgba(168, 180, 194, 0.92);
}

/* ---------- 提交清单 ---------- */
.page-contact .checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--line);
}

.page-contact .checklist__item {
  display: grid;
  gap: 6px 20px;
  padding: 20px 0;
  border-bottom: var(--line);
}

.page-contact .checklist__no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-contact .checklist__name {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.05em;
  color: var(--paper);
}

.page-contact .checklist__desc {
  font-size: 0.95rem;
  color: rgba(168, 180, 194, 0.9);
}

/* ---------- 回复节奏 ---------- */
.page-contact .reply {
  padding: var(--pc-pad);
  border: var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(22, 32, 46, 0.96), rgba(10, 18, 32, 0.92));
  box-shadow: var(--shadow-hard);
}

.page-contact .reply__track {
  display: grid;
  gap: 16px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-contact .reply__step {
  position: relative;
  padding-top: 20px;
  border-top: 2px solid var(--edge);
  font-size: 0.92rem;
  color: rgba(168, 180, 194, 0.92);
}

.page-contact .reply__step::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--clay);
  box-shadow: 0 0 0 3px rgba(200, 112, 63, 0.18);
}

.page-contact .reply__step strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-contact .reply__callout {
  display: inline-block;
  margin: 0;
  padding: 10px 16px;
  border: 1px solid rgba(240, 180, 87, 0.5);
  border-radius: var(--radius);
  background: rgba(240, 180, 87, 0.06);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

/* ---------- 写法示例 ---------- */
.page-contact .samples {
  display: grid;
  gap: clamp(18px, 2.4vw, 26px);
}

.page-contact .sample {
  padding: 22px;
  border: var(--line);
  border-top: 3px solid var(--violet);
  border-radius: var(--radius);
  background: var(--panel);
}

.page-contact .sample__scene {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  letter-spacing: 0.05em;
}

.page-contact .sample__flag {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--clay);
}

.page-contact .sample__flag--good {
  color: var(--cyan);
}

.page-contact .sample__weak {
  margin: 0 0 16px;
  padding-left: 12px;
  border-left: 2px solid var(--edge);
  font-size: 0.9rem;
  color: rgba(168, 180, 194, 0.72);
}

.page-contact .sample__good {
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--cyan);
  background: rgba(63, 224, 208, 0.05);
  font-size: 0.93rem;
  color: rgba(243, 239, 228, 0.9);
}

/* ---------- 到访 ---------- */
.page-contact .visit {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  align-items: center;
}

.page-contact .visit__copy p {
  max-width: 34em;
  margin: 0 0 16px;
  color: rgba(243, 239, 228, 0.8);
}

.page-contact .visit__copy p:last-child {
  margin-bottom: 0;
}

.page-contact .visit__media {
  margin: 0;
  overflow: hidden;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-contact .visit__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 3;
  object-fit: cover;
}

/* ---------- 联系信息条 ---------- */
.page-contact .contact-strip {
  margin-top: var(--pc-gap);
  padding: clamp(28px, 4vw, 48px) 0;
  border-top: 1px solid var(--clay);
  background: var(--panel);
}

.page-contact .contact-strip__wrap {
  width: min(100% - (var(--shell-pad) * 2), 1120px);
  margin-inline: auto;
}

.page-contact .contact-strip__grid {
  display: grid;
  gap: 22px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .contact-strip__key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(168, 180, 194, 0.75);
}

.page-contact .contact-strip__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-strip__value--mail {
  color: var(--amber);
}

.page-contact .contact-strip__note {
  margin: 26px 0 0;
  max-width: 60em;
  font-size: 0.88rem;
  color: rgba(168, 180, 194, 0.82);
}

/* ---------- 进入视口的克制过渡 ---------- */
.page-contact [data-reveal] {
  transition: opacity 0.28s ease;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .checklist__item {
    grid-template-columns: 72px minmax(0, 0.9fr) minmax(0, 1.4fr);
    align-items: baseline;
  }

  .page-contact .contact-strip__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }
}

@media (min-width: 760px) {
  .page-contact .routing {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .routing__card:nth-child(even) {
    transform: translateY(22px);
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

  .page-contact .samples {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .visit {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }
}

@media (min-width: 1000px) {
  .page-contact .board {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }

  .page-contact .board__rail {
    position: sticky;
    top: 112px;
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 1120px) {
  .page-contact .routing {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .routing__card:nth-child(odd) {
    transform: translateY(-6px);
  }

  .page-contact .routing__card:nth-child(even) {
    transform: translateY(26px);
  }
}

@media (max-width: 999px) {
  .page-contact {
    padding-bottom: 104px;
  }

  .page-contact .contact-hero::before {
    width: 78%;
    height: 58%;
    opacity: 0.7;
  }
}
<<<END>>>