.page-contact {
  --pc-rule-fade: rgba(217, 205, 182, 0.42);
  --pc-hover: 180ms var(--ease);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  position: relative;
  padding-block: clamp(20px, 3vw, 34px) clamp(36px, 5vw, 60px);
  background-image:
    linear-gradient(to right, var(--pc-rule-fade) 1px, transparent 1px),
    linear-gradient(to bottom, var(--pc-rule-fade) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px;
  background-position: center top;
}

.page-contact .contact-intro__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(22px, 3vw, 34px);
  align-items: end;
}

@media (min-width: 900px) {
  .page-contact .contact-intro__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

.page-contact .contact-intro__copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 4.4vw, 54px);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--ink);
  max-width: 18ch;
}

.page-contact .contact-intro__copy .lead {
  margin-top: 18px;
  max-width: 46ch;
  color: var(--ink-soft);
}

.page-contact .contact-intro__art {
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  border: 1px solid var(--rule);
  background: var(--cream);
}

.page-contact .contact-intro__art img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.88;
}

/* ---------- 渠道与流程 ---------- */
.page-contact .contact-hub {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-hub__grid {
  display: grid;
  gap: clamp(34px, 4vw, 56px);
}

@media (min-width: 1080px) {
  .page-contact .contact-hub__grid {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: start;
  }
}

.page-contact .channel-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  padding: 22px 22px 24px 26px;
  background: var(--paper);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  transition: border-color var(--pc-hover), background-color var(--pc-hover), transform var(--pc-hover);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--gold);
  transition: background-color var(--pc-hover);
}

.page-contact .channel-card:hover {
  border-color: var(--cinnabar-deep);
  background: var(--cream);
  transform: translateY(-2px);
}

.page-contact .channel-card:hover::before {
  background: var(--cinnabar);
}

.page-contact .channel-card__tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 18px;
  padding: 2px 8px;
  color: var(--gold-deep);
  border: 1px solid var(--gold);
}

.page-contact .channel-card__value {
  margin: 14px 0 0;
  font-family: var(--font-num);
  font-size: clamp(16px, 1.5vw, 19px);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--cinnabar-deep);
  word-break: break-word;
}

.page-contact .channel-card__desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* 四步轨迹 */
.page-contact .step-track {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

@media (min-width: 760px) {
  .page-contact .step-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    position: relative;
  }

  .page-contact .step-track::before {
    content: "";
    position: absolute;
    top: 16px;
    left: 20px;
    right: 20px;
    height: 2px;
    background-image: linear-gradient(90deg, var(--gold) 0 8px, transparent 8px 16px);
    background-size: 16px 2px;
    opacity: 0.75;
  }
}

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

.page-contact .step__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background-color var(--pc-hover), border-color var(--pc-hover);
}

.page-contact .step:hover .step__index {
  background: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
}

.page-contact .step__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: 18px;
  line-height: 1.42;
  color: var(--ink);
}

.page-contact .step__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .step__meta {
  margin: 12px 0 0;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--gold-deep);
  transition: color var(--pc-hover);
}

.page-contact .step:hover .step__meta {
  color: var(--cinnabar-deep);
}

/* 流程图 */
.page-contact .contact-flow__art {
  margin: clamp(28px, 3vw, 40px) 0 0;
  padding: 0;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

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

/* 材料清单 */
.page-contact .kit-list {
  margin-top: clamp(30px, 4vw, 44px);
  padding: clamp(22px, 3vw, 30px);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--gold);
}

.page-contact .kit-list__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .kit-list__hint {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-contact .kit-list ul {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

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

.page-contact .kit-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 14px;
  background: var(--cream);
  border: 1px solid transparent;
  transition: border-color var(--pc-hover), background-color var(--pc-hover);
}

.page-contact .kit-item:hover {
  border-color: var(--rule);
  background: var(--cream-deep);
}

.page-contact .kit-item input {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  display: grid;
  place-content: center;
  background: var(--paper);
  border: 1px solid var(--gold-deep);
  cursor: pointer;
  transition: background-color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .kit-item input::after {
  content: "";
  width: 8px;
  height: 4px;
  border-left: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(-45deg) scale(0);
  transition: transform 140ms var(--ease);
}

.page-contact .kit-item input:checked {
  background: var(--jade);
  border-color: var(--jade);
}

.page-contact .kit-item input:checked::after {
  transform: rotate(-45deg) scale(1);
}

.page-contact .kit-item input:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-contact .kit-item label {
  font-size: 15px;
  line-height: 1.68;
  color: var(--ink-soft);
  cursor: pointer;
}

.page-contact .kit-item strong {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- 对照表 ---------- */
.page-contact .contact-routing__table {
  margin-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--ink);
}

.page-contact .routing-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  transition: background-color var(--pc-hover);
}

.page-contact .routing-row:hover {
  background: var(--cream);
}

@media (min-width: 860px) {
  .page-contact .routing-row {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.1fr) minmax(0, 0.75fr);
    gap: 24px;
    align-items: center;
    padding: 18px 14px;
  }
}

.page-contact .routing-row--head {
  display: none;
}

@media (min-width: 860px) {
  .page-contact .routing-row--head {
    display: grid;
    padding-block: 10px;
    color: var(--gold-deep);
    font-size: 12px;
    letter-spacing: 0.08em;
  }

  .page-contact .routing-row--head:hover {
    background: transparent;
  }
}

.page-contact .routing-row__what {
  font-size: 16px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .routing-row__where,
.page-contact .routing-row__when {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .routing-row__where .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  color: var(--cinnabar-deep);
  word-break: break-word;
}

.page-contact .routing-row__where a {
  color: var(--lapis);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--pc-hover);
}

.page-contact .routing-row__where a:hover {
  color: var(--cinnabar-deep);
}

@media (max-width: 859px) {
  .page-contact .routing-row__where::before,
  .page-contact .routing-row__when::before {
    display: block;
    margin-bottom: 2px;
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--gold-deep);
  }

  .page-contact .routing-row__where::before {
    content: "走这个入口 ·";
  }

  .page-contact .routing-row__when::before {
    content: "回应节奏 ·";
  }
}

/* ---------- 归属与备案 ---------- */
.page-contact .contact-base {
  border-top: 1px solid var(--rule);
}

.page-contact .contact-base__inner h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.35;
  color: var(--ink);
  max-width: 24ch;
}

.page-contact .base-facts {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .base-facts__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

@media (min-width: 760px) {
  .page-contact .base-facts__row {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

.page-contact .base-facts dt {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--gold-deep);
}

.page-contact .base-facts dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.72;
  color: var(--ink);
}

.page-contact .base-facts dd.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  word-break: break-word;
}

.page-contact .contact-base__note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 76ch;
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .contact-base__note a {
  color: var(--lapis);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--pc-hover);
}

.page-contact .contact-base__note a:hover {
  color: var(--cinnabar-deep);
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .step__index,
  .page-contact .step__meta,
  .page-contact .kit-item,
  .page-contact .kit-item input,
  .page-contact .kit-item input::after,
  .page-contact .routing-row {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}
<<<END>>>