.page-contact {
  --contact-gap: clamp(20px, 3.4vw, 44px);
  --contact-node: 44px;
  background: var(--paper-50);
  color: var(--text);
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(28px, 4.4vw, 56px) clamp(32px, 5vw, 72px);
  background:
    linear-gradient(180deg, rgba(232, 117, 42, 0.09), rgba(251, 246, 238, 0) 72%),
    var(--paper-50);
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-hero__grid {
  position: absolute;
  inset: 0 0 0 auto;
  width: 46%;
  background-image:
    linear-gradient(var(--rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  opacity: 0.45;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 68%);
  mask-image: linear-gradient(90deg, transparent, #000 68%);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "06";
  position: absolute;
  right: clamp(8px, 4vw, 56px);
  top: clamp(2px, 1.6vw, 22px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(84px, 15vw, 190px);
  line-height: 0.9;
  letter-spacing: -0.05em;
  color: var(--apricot-500);
  opacity: 0.16;
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 44rem;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.4vw, 3.3rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.page-contact .contact-hero__lede {
  max-width: 34em;
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--text);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 分屏主体 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  padding-block: clamp(32px, 5vw, 64px) clamp(40px, 6vw, 80px);
  align-items: start;
}

.page-contact .contact-main {
  min-width: 0;
}

/* 联系信息卡 */
.page-contact .contact-card {
  background: var(--ink-900);
  color: var(--paper-50);
  border-top: 6px solid var(--apricot-500);
  padding: clamp(22px, 3vw, 32px);
  box-shadow: 10px 10px 0 var(--paper-100);
}

.page-contact .contact-card__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--apricot-200);
}

.page-contact .contact-card__title {
  margin: 10px 0 12px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: var(--fs-20);
  line-height: 1.35;
  color: var(--paper-50);
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(251, 246, 238, 0.78);
}

.page-contact .contact-card__list {
  margin: 20px 0 0;
  padding: 0;
}

.page-contact .contact-card__row {
  display: grid;
  gap: 5px;
  padding-block: 13px;
  border-bottom: 1px solid rgba(251, 246, 238, 0.16);
}

.page-contact .contact-card__row dt {
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--apricot-200);
}

.page-contact .contact-card__row dd {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--paper-50);
}

.page-contact .contact-card__mail,
.page-contact .contact-card__tel {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--paper-50);
  text-decoration: none;
  border-bottom: 1px solid var(--amber-400);
  word-break: break-all;
  transition: color 90ms ease-out, border-color 90ms ease-out;
}

.page-contact .contact-card__mail:hover,
.page-contact .contact-card__mail:focus-visible,
.page-contact .contact-card__tel:hover,
.page-contact .contact-card__tel:focus-visible {
  color: var(--apricot-500);
  border-color: var(--apricot-500);
}

.page-contact .contact-card__foot {
  margin: 18px 0 0;
  font-size: var(--fs-12);
  font-style: italic;
  line-height: 1.7;
  color: var(--apricot-200);
  border-bottom: 1px solid var(--amber-400);
  padding-bottom: 3px;
  display: inline-block;
}

/* 顶部图片 */
.page-contact .contact-photo {
  margin: 0 0 var(--contact-gap);
}

.page-contact .contact-photo .media__img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.page-contact .media__caption {
  margin-top: 10px;
  font-size: var(--fs-12);
  font-style: italic;
  color: var(--ink-700);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  padding-block: clamp(26px, 4vw, 46px);
  border-top: 1px solid var(--rule);
}

.page-contact .contact-section:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-contact .section-head {
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-contact .section-head__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--paper-50);
  background: var(--apricot-500);
  padding: 3px 8px;
}

.page-contact .section-head__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-contact .section-head__note {
  margin: 0;
  max-width: 36em;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--ink-700);
}

/* ---------- 渠道 ---------- */
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .channel {
  background: var(--paper-100);
  border-left: 3px solid var(--apricot-500);
  padding: 18px 18px 16px;
  transition: background 120ms ease-out, box-shadow 120ms ease-out;
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  background: #FDF1E4;
  box-shadow: inset 2px 0 0 var(--amber-400);
}

.page-contact .channel__tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--amber-700);
}

.page-contact .channel__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-20);
  color: var(--ink-900);
}

.page-contact .channel__body {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--text);
}

.page-contact .channel__meta {
  margin: 10px 0 0;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--ink-700);
}

/* ---------- 三样材料 ---------- */
.page-contact .material-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .material {
  display: grid;
  gap: 10px;
  background: var(--paper-50);
  border: 1px solid var(--rule);
  padding: 16px 16px 18px;
}

.page-contact .material .tag {
  justify-self: start;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-contact .material__body {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--text);
}

/* 邮件模板 */
.page-contact .mail-draft {
  margin-top: 22px;
  padding: clamp(18px, 2.6vw, 26px);
  background:
    linear-gradient(135deg, rgba(232, 117, 42, 0.13), rgba(242, 233, 218, 0.9) 62%);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--ink-900);
}

.page-contact .mail-draft__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: var(--fs-20);
  color: var(--ink-900);
}

.page-contact .mail-draft__fields {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-contact .mail-draft__fields li {
  display: grid;
  gap: 2px;
  padding-block: 9px;
  border-bottom: 1px dashed var(--rule);
}

.page-contact .mail-draft__key {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--amber-700);
}

.page-contact .mail-draft__val {
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--text);
  word-break: break-word;
}

/* ---------- 合作 ---------- */
.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .partner {
  border-top: 2px solid var(--ink-900);
  padding-top: 14px;
}

.page-contact .partner__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-16);
  color: var(--ink-900);
}

.page-contact .partner__body {
  margin: 0 0 10px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--text);
}

.page-contact .partner__need {
  margin: 0;
  font-size: var(--fs-12);
  font-style: italic;
  line-height: 1.7;
  color: var(--ink-700);
  border-bottom: 1px solid var(--amber-400);
  padding-bottom: 4px;
}

/* ---------- 流程带 ---------- */
.page-contact .contact-flow {
  position: relative;
  margin-top: clamp(16px, 3vw, 32px);
  padding-block: clamp(46px, 6vw, 80px) clamp(38px, 5vw, 64px);
  background: var(--ink-900);
  color: var(--paper-50);
  clip-path: polygon(0 26px, 100% 0, 100% 100%, 0 100%);
}

.page-contact .contact-flow .section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .section-head--onDark .section-head__num {
  background: var(--apricot-500);
  color: var(--ink-900);
}

.page-contact .section-head--onDark .section-head__title {
  color: var(--paper-50);
}

.page-contact .section-head--onDark .section-head__note {
  color: rgba(251, 246, 238, 0.72);
}

.page-contact .flow {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .flow__step details {
  border-left: 2px solid rgba(217, 144, 58, 0.6);
  padding-left: 14px;
}

.page-contact .flow__step summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  padding-block: 4px;
}

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

.page-contact .flow__step summary:focus-visible {
  outline: 2px solid var(--apricot-500);
  outline-offset: 3px;
}

.page-contact .flow__num {
  display: inline-grid;
  place-items: center;
  width: var(--contact-node);
  height: var(--contact-node);
  flex: none;
  background: var(--apricot-500);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 700;
}

.page-contact .flow__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-16);
  letter-spacing: 0.02em;
  color: var(--paper-50);
}

.page-contact .flow__step details[open] .flow__label {
  color: var(--apricot-200);
}

.page-contact .flow__body {
  margin: 10px 0 6px;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: rgba(251, 246, 238, 0.82);
}

.page-contact .contact-flow__hint {
  margin: clamp(22px, 3vw, 34px) 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: rgba(251, 246, 238, 0.72);
}

.page-contact .contact-flow__hint a {
  color: var(--apricot-200);
  text-decoration: none;
  border-bottom: 1px solid var(--amber-400);
}

.page-contact .contact-flow__hint a:hover,
.page-contact .contact-flow__hint a:focus-visible {
  color: var(--apricot-500);
}

/* ---------- 到访 ---------- */
.page-contact .contact-visit {
  padding-block: clamp(40px, 6vw, 76px) clamp(40px, 6vw, 72px);
  background: var(--paper-50);
}

.page-contact .contact-visit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: start;
}

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

.page-contact .contact-visit__figure .media__img {
  width: 100%;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-contact .contact-visit__text {
  min-width: 0;
}

.page-contact .contact-visit__addr {
  margin: 0 0 12px;
  padding: 12px 14px;
  background: var(--paper-100);
  border-left: 3px solid var(--apricot-500);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--ink-900);
  word-break: break-word;
}

.page-contact .contact-visit__text .prose {
  margin: 0 0 18px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text);
}

.page-contact .contact-visit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.page-contact .contact-visit__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: var(--fs-12);
  line-height: 1.9;
  color: var(--ink-700);
}

.page-contact .contact-visit__note a {
  color: var(--amber-700);
  text-decoration: none;
  border-bottom: 1px solid var(--amber-400);
}

.page-contact .contact-visit__note a:hover,
.page-contact .contact-visit__note a:focus-visible {
  color: var(--apricot-500);
}

/* ---------- 焦点与动效 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--apricot-500);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .channel-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .channel-list .channel:last-child {
    grid-column: 1 / -1;
  }

  .page-contact .mail-draft__fields li {
    grid-template-columns: 8em minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }

  .page-contact .partner-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 24px;
  }

  .page-contact .partner-list .partner:last-child {
    grid-column: 1 / -1;
  }
}

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

  .page-contact .channel-list .channel:last-child {
    grid-column: auto;
  }

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

  .page-contact .partner-list .partner:last-child {
    grid-column: auto;
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    padding-top: 8px;
  }

  .page-contact .flow::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: calc(var(--contact-node) / 2);
    height: 2px;
    background: var(--amber-400);
    opacity: 0.55;
  }

  .page-contact .flow__step {
    position: relative;
  }

  .page-contact .flow__step details {
    border-left: 0;
    padding-left: 0;
  }

  .page-contact .flow__step summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .page-contact .flow__num {
    position: relative;
    z-index: 1;
    box-shadow: 0 0 0 6px var(--ink-900);
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 0.52fr) minmax(0, 0.48fr);
    gap: clamp(24px, 4vw, 56px);
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(280px, 36fr) minmax(0, 64fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .contact-card {
    position: sticky;
    top: calc(var(--top-h) + var(--rail-h) + 20px);
  }
}
<<<END>>>