.page-contact {
  --pc-rule: rgba(20, 22, 28, .14);
  --pc-rule-light: rgba(244, 239, 230, .32);
  --pc-sheet: #FFFFFF;
  --pc-dim: rgba(20, 22, 28, .74);
  display: block;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  background: var(--indigo);
  color: var(--paper);
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(2.25rem, 5vw, 3.5rem);
  position: relative;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--gold) 0 22px, transparent 22px 34px);
  opacity: .85;
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: 1.75rem;
}

.page-contact .pc-hero .breadcrumb {
  color: rgba(244, 239, 230, .6);
  font-size: .84rem;
}

.page-contact .pc-hero .breadcrumb a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 163, 46, .5);
}

.page-contact .pc-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--gold);
  border: 1px solid rgba(224, 163, 46, .55);
  padding: .28rem .68rem;
  margin: 1.1rem 0 1rem;
}

.page-contact .pc-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 4.6vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin: 0 0 1rem;
  color: var(--paper);
  max-width: 22em;
}

.page-contact .pc-lede {
  max-width: 36em;
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.85;
  color: rgba(244, 239, 230, .8);
}

.page-contact .pc-hero__fact {
  border-left: 3px solid var(--gold);
  padding: .2rem 0 .2rem 1.1rem;
}

.page-contact .pc-hero__fact-key {
  margin: 0 0 .45rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--slate);
}

.page-contact .pc-hero__fact-val {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  color: var(--gold);
  letter-spacing: .01em;
}

.page-contact .pc-hero__fact-note {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(244, 239, 230, .68);
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(220px, .72fr);
    align-items: end;
    gap: 3rem;
  }
}

/* ---------- 通用区块头 ---------- */
.page-contact .pc-section-head {
  border-top: 1px solid var(--pc-rule);
  padding-top: 1.1rem;
  margin-bottom: clamp(1.4rem, 3vw, 2.1rem);
}

.page-contact .pc-section-num {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .24em;
  color: var(--crimson);
}

.page-contact .pc-section-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1.26;
  margin: 0 0 .65rem;
}

.page-contact .pc-section-sub {
  max-width: 46em;
  margin: 0;
  font-size: .98rem;
  line-height: 1.8;
  color: var(--pc-dim);
}

.page-contact .pc-section-head--light {
  border-top-color: var(--pc-rule-light);
}

.page-contact .pc-section-head--light h2 {
  color: var(--paper);
}

.page-contact .pc-section-head--light .pc-section-num {
  color: var(--gold);
}

.page-contact .pc-section-head--light .pc-section-sub {
  color: rgba(244, 239, 230, .78);
}

/* ---------- 问题分流 ---------- */
.page-contact .pc-router {
  padding: clamp(2.25rem, 5vw, 3.5rem) 0 clamp(1.5rem, 3vw, 2rem);
}

.page-contact .pc-switch__tabs {
  display: grid;
  gap: .5rem;
  margin-bottom: 1rem;
}

.page-contact .pc-switch__tab {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  cursor: pointer;
  padding: .82rem .95rem;
  background: var(--pc-sheet);
  border: 1px solid rgba(20, 22, 28, .2);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: .94rem;
  line-height: 1.4;
  color: var(--ink);
  transition: background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-contact .pc-switch__tab:hover {
  border-color: var(--crimson);
}

.page-contact .pc-switch__tab-num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  opacity: .62;
}

.page-contact #pc-topic-account:checked ~ .pc-switch__tabs .pc-switch__tab[for="pc-topic-account"],
.page-contact #pc-topic-watch:checked ~ .pc-switch__tabs .pc-switch__tab[for="pc-topic-watch"],
.page-contact #pc-topic-guide:checked ~ .pc-switch__tabs .pc-switch__tab[for="pc-topic-guide"],
.page-contact #pc-topic-biz:checked ~ .pc-switch__tabs .pc-switch__tab[for="pc-topic-biz"] {
  background: var(--crimson);
  border-color: var(--crimson);
  color: var(--paper);
}

.page-contact .pc-switch__input:focus-visible ~ .pc-switch__tabs .pc-switch__tab {
  outline: none;
}

.page-contact .pc-switch__input:focus-visible ~ .pc-switch__tabs {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

@media (min-width: 720px) {
  .page-contact .pc-switch__tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .65rem;
  }
}

.page-contact .pc-panel {
  display: none;
  background: var(--pc-sheet);
  border: 1px solid rgba(20, 22, 28, .18);
  padding: clamp(1.15rem, 3vw, 2rem);
  gap: clamp(1.25rem, 3vw, 2.5rem);
}

.page-contact #pc-topic-account:checked ~ .pc-switch__panels .pc-panel--account,
.page-contact #pc-topic-watch:checked ~ .pc-switch__panels .pc-panel--watch,
.page-contact #pc-topic-guide:checked ~ .pc-switch__panels .pc-panel--guide,
.page-contact #pc-topic-biz:checked ~ .pc-switch__panels .pc-panel--biz {
  display: grid;
}

@media (min-width: 860px) {
  .page-contact .pc-panel {
    grid-template-columns: minmax(0, 1.4fr) minmax(230px, .8fr);
    align-items: start;
  }
}

.page-contact .pc-panel__tag {
  display: inline-block;
  margin: 0 0 .85rem;
  padding: .22rem .62rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--crimson);
  background: var(--paper);
  border: 1px solid var(--gold);
}

.page-contact .pc-panel h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.12rem, 2.2vw, 1.5rem);
  line-height: 1.38;
  margin: 0 0 .8rem;
}

.page-contact .pc-panel__body p {
  margin: 0 0 .9rem;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--pc-dim);
}

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

.page-contact .pc-panel__meta {
  margin: 0;
  padding-left: 1rem;
  border-left: 3px solid var(--crimson);
}

.page-contact .pc-panel__meta > div {
  margin-bottom: 1rem;
}

.page-contact .pc-panel__meta > div:last-child {
  margin-bottom: 0;
}

.page-contact .pc-panel__meta dt {
  margin: 0 0 .25rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--crimson);
}

.page-contact .pc-panel__meta dd {
  margin: 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--pc-dim);
}

.page-contact .pc-panel__meta a {
  color: var(--indigo);
  text-decoration: underline;
  text-decoration-color: var(--gold);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: color .18s var(--ease);
}

.page-contact .pc-panel__meta a:hover {
  color: var(--crimson);
}

/* ---------- 人工渠道 ---------- */
.page-contact .pc-channel {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  background: var(--crimson);
  color: var(--paper);
  padding: clamp(2.25rem, 5vw, 3.75rem) 0 clamp(2rem, 4vw, 3rem);
}

.page-contact .pc-channel__grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 780px) {
  .page-contact .pc-channel__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.35rem;
  }
}

.page-contact .pc-channel__card {
  background: rgba(14, 21, 51, .46);
  border: 1px solid rgba(244, 239, 230, .3);
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
  box-shadow: 6px 6px 0 var(--wine);
  transition: box-shadow .2s var(--ease), transform .2s var(--ease);
}

.page-contact .pc-channel__card:hover {
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0 var(--wine);
}

.page-contact .pc-channel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-contact .pc-channel__value {
  margin: .55rem 0 .8rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid rgba(224, 163, 46, .5);
  font-family: var(--font-mono);
  font-size: clamp(.94rem, 2.2vw, 1.35rem);
  line-height: 1.45;
  letter-spacing: -.005em;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .pc-channel__desc {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(244, 239, 230, .78);
}

.page-contact .pc-channel__figure {
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
}

/* ---------- 咨询准备 ---------- */
.page-contact .pc-prepare {
  padding: clamp(2.25rem, 5vw, 3.5rem) 0 clamp(1rem, 3vw, 1.75rem);
}

.page-contact .pc-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

@media (min-width: 760px) {
  .page-contact .pc-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .7rem 1rem;
  }
}

.page-contact .pc-check__label {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  height: 100%;
  padding: .9rem 1rem;
  background: var(--pc-sheet);
  border: 1px solid rgba(20, 22, 28, .16);
  cursor: pointer;
  font-size: .94rem;
  line-height: 1.72;
  color: var(--pc-dim);
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-contact .pc-check__label:hover {
  border-color: var(--gold);
}

.page-contact .pc-check__text strong {
  color: var(--ink);
  font-weight: 700;
}

.page-contact .pc-check__box {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: .28rem;
  border: 1px solid rgba(20, 22, 28, .45);
  background: var(--paper);
  position: relative;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .pc-check__input:checked + .pc-check__label {
  border-color: var(--crimson);
  background: #FFF6EC;
}

.page-contact .pc-check__input:checked + .pc-check__label .pc-check__box {
  background: var(--crimson);
  border-color: var(--crimson);
}

.page-contact .pc-check__input:checked + .pc-check__label .pc-check__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(45deg);
}

.page-contact .pc-check__input:focus-visible + .pc-check__label {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 通信地址 ---------- */
.page-contact .pc-address {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  background: var(--night);
  color: var(--paper);
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(3rem, 7vw, 5rem);
  clip-path: polygon(0 2.5%, 100% 0, 100% 100%, 0 97.5%);
}

.page-contact .pc-address__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 880px) {
  .page-contact .pc-address__inner {
    grid-template-columns: minmax(0, 1fr) minmax(280px, .82fr);
    align-items: start;
  }
}

.page-contact .pc-address h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  line-height: 1.28;
  margin: .55rem 0 .8rem;
  color: var(--paper);
}

.page-contact .pc-address .pc-section-num {
  color: var(--gold);
}

.page-contact .pc-address__intro {
  margin: 0;
  max-width: 34em;
  font-size: .96rem;
  line-height: 1.85;
  color: rgba(244, 239, 230, .78);
}

.page-contact .pc-address__list {
  margin: 1.6rem 0 0;
  display: grid;
  gap: .7rem;
}

.page-contact .pc-address__row {
  display: grid;
  gap: .3rem;
  padding: .85rem 1rem;
  background: rgba(23, 32, 90, .55);
  border: 1px solid rgba(244, 239, 230, .34);
}

.page-contact .pc-address__row dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .pc-address__row dd {
  margin: 0;
  font-size: .96rem;
  line-height: 1.72;
  color: rgba(244, 239, 230, .92);
}

.page-contact .pc-address__figure {
  margin: 0;
}

/* ---------- 内容协作 ---------- */
.page-contact .pc-collab {
  padding: clamp(2.5rem, 6vw, 4rem) 0 clamp(1rem, 3vw, 1.5rem);
}

.page-contact .pc-collab__card {
  background: var(--pc-sheet);
  border: 1px solid rgba(20, 22, 28, .14);
  border-top: 3px solid var(--crimson);
  padding: 1.2rem 1.1rem 1.3rem;
  height: 100%;
}

.page-contact .pc-collab__card h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.08rem;
  line-height: 1.4;
  margin: 0 0 .6rem;
}

.page-contact .pc-collab__card p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--pc-dim);
}

.page-contact .pc-collab__note {
  margin: 1.5rem 0 0;
  padding: .9rem 1.1rem;
  background: var(--paper);
  border-left: 3px solid var(--gold);
  font-size: .93rem;
  line-height: 1.8;
  color: var(--pc-dim);
  max-width: 52em;
}

/* ---------- 相关页面 ---------- */
.page-contact .pc-links {
  padding: 0 0 clamp(2rem, 5vw, 3rem);
}

.page-contact .pc-links__inner {
  border-top: 1px solid var(--pc-rule);
  padding-top: 1.2rem;
  display: grid;
  gap: 1rem;
}

@media (min-width: 760px) {
  .page-contact .pc-links__inner {
    grid-template-columns: minmax(120px, auto) minmax(0, 1fr);
    align-items: baseline;
    gap: 2rem;
  }
}

.page-contact .pc-links__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--crimson);
}

.page-contact .pc-links__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

.page-contact .pc-links__list a {
  display: inline-block;
  padding: .45rem .85rem;
  border: 1px solid rgba(20, 22, 28, .2);
  background: var(--pc-sheet);
  color: var(--ink);
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-contact .pc-links__list a:hover {
  border-color: var(--gold);
  color: var(--crimson);
  background: #FFF6EC;
}

.page-contact .media-frame img,
.page-contact figure img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}
<<<END>>>