.page-contact {
  --c-panel: rgba(58, 69, 82, .42);
  --c-hair: rgba(200, 164, 92, .22);
  --c-hair-strong: rgba(200, 164, 92, .48);
  --c-cut: 22px;
  color: var(--porcelain);
}

.page-contact .crumb {
  margin-bottom: 26px;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--porcelain);
}

.page-contact .sec-title {
  font-size: clamp(1.45rem, 4.6vw, 2.15rem);
  line-height: 1.3;
  margin: 8px 0 12px;
}

.page-contact .sec-lead {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 46ch;
  margin: 0 0 22px;
}

.page-contact a {
  color: var(--gold-hi);
}

.page-contact .media {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
}

.page-contact .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  height: auto;
  filter: saturate(.9) contrast(1.02);
}

/* ---------- 首屏门厅 ---------- */
.page-contact .lobby {
  display: grid;
  gap: 34px;
  padding-block: 6px 58px;
  border-bottom: 1px solid var(--c-hair);
}

.page-contact .lobby__text h1 {
  font-size: clamp(2rem, 7.4vw, 3.7rem);
  line-height: 1.2;
  margin: 10px 0 18px;
  letter-spacing: .05em;
}

.page-contact .lobby__lead {
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mist);
  margin: 0 0 28px;
  max-width: 52ch;
}

.page-contact .mailbox {
  position: relative;
  padding: 22px 22px 24px;
  background:
    linear-gradient(158deg, rgba(58, 69, 82, .62), rgba(23, 24, 29, .9));
  border: 1px solid var(--c-hair-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--c-cut)), calc(100% - var(--c-cut)) 100%, 0 100%);
}

.page-contact .mailbox__label {
  display: block;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-contact .mailbox__addr {
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 4.4vw, 1.68rem);
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--gold-hi);
  word-break: break-all;
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}

.page-contact .mailbox__hint {
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
}

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

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

.page-contact .lobby__figure .media {
  aspect-ratio: 4 / 5;
  border: 1px solid var(--c-hair);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--c-cut) 100%, 0 calc(100% - var(--c-cut)));
}

.page-contact .lobby__figure figcaption {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold-dim);
  text-align: right;
}

/* ---------- 电话与地址 ---------- */
.page-contact .desks {
  padding-block: 54px;
  border-bottom: 1px solid var(--c-hair);
}

.page-contact .desks__grid {
  display: grid;
  gap: 20px;
}

.page-contact .desk {
  position: relative;
  padding: 26px 24px 28px;
  background: linear-gradient(150deg, rgba(58, 69, 82, .5), rgba(11, 11, 13, .86));
  border: 1px solid var(--c-hair);
}

.page-contact .desk--phone {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-contact .desk--addr {
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  background: linear-gradient(200deg, rgba(31, 42, 46, .9), rgba(23, 24, 29, .92));
}

.page-contact .desk__k {
  font-size: 10.5px;
  letter-spacing: .26em;
  color: var(--gold);
}

.page-contact .desk__title {
  font-size: 1.05rem;
  margin: 10px 0 14px;
  letter-spacing: .12em;
  color: var(--porcelain);
}

.page-contact .desk__v {
  font-family: var(--font-mono);
  font-size: clamp(1.32rem, 5.4vw, 1.9rem);
  letter-spacing: .04em;
  color: var(--gold-hi);
  margin: 0 0 16px;
  word-break: break-all;
}

.page-contact .desk__v--text {
  font-family: var(--font-serif);
  font-size: clamp(1.02rem, 3.9vw, 1.3rem);
  line-height: 1.7;
  letter-spacing: .05em;
  color: var(--porcelain);
  word-break: normal;
}

.page-contact .desk__note {
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--c-hair);
}

/* ---------- 工单指引 ---------- */
.page-contact .ticket {
  display: grid;
  gap: 30px;
  padding-block: 54px;
  border-bottom: 1px solid var(--c-hair);
}

.page-contact .ticket__figure .media {
  aspect-ratio: 5 / 4;
  border: 1px solid var(--c-hair);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-contact .ticket__cap {
  font-family: var(--font-sans);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 12px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--gold-dim);
}

.page-contact .ticket__list {
  border-top: 1px solid var(--c-hair);
}

.page-contact .ticket__item {
  border-bottom: 1px solid var(--c-hair);
}

.page-contact .ticket__item .disclosure__head {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 17px 2px;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: var(--porcelain);
  transition: color var(--dur) var(--ease);
}

.page-contact .ticket__item .disclosure__head:hover,
.page-contact .ticket__item .disclosure__head:focus-visible {
  color: var(--gold-hi);
}

.page-contact .ticket__item .disclosure__head:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-contact .ticket__tag {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold-dim);
}

.page-contact .ticket__item .disclosure__title {
  flex: 1 1 auto;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  letter-spacing: .1em;
}

.page-contact .ticket__item .disclosure__mark {
  flex: 0 0 auto;
  position: relative;
  width: 16px;
  height: 16px;
  border: 1px solid var(--gold-dim);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ticket__item .disclosure__mark::before,
.page-contact .ticket__item .disclosure__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--gold);
  transform: translate(-50%, -50%);
}

.page-contact .ticket__item .disclosure__mark::before {
  width: 8px;
  height: 1px;
}

.page-contact .ticket__item .disclosure__mark::after {
  width: 1px;
  height: 8px;
  transition: opacity var(--dur) var(--ease);
}

.page-contact .ticket__item[data-open] .disclosure__mark {
  border-color: var(--cinnabar);
  transform: rotate(90deg);
}

.page-contact .ticket__item[data-open] .disclosure__mark::after {
  opacity: 0;
}

.page-contact .ticket__item .disclosure__panel {
  overflow: hidden;
}

.page-contact .ticket__item .disclosure__body {
  padding: 0 2px 20px 40px;
  border-left: 2px solid var(--cinnabar);
  margin-left: 6px;
}

.page-contact .ticket__item .disclosure__body p {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
  margin: 0;
}

.page-contact .ticket__flag {
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
  margin: 20px 0 0;
}

.page-contact .tag-hot {
  display: inline-block;
  margin: 0 6px;
  padding: 2px 9px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--porcelain);
  background: var(--cinnabar);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 7px 100%, 0 calc(100% - 7px));
}

/* ---------- 联络前准备 ---------- */
.page-contact .prepare {
  padding-block: 54px;
  border-bottom: 1px solid var(--c-hair);
}

.page-contact .prepare__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .prepare__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(31, 42, 46, .5);
  border-left: 2px solid var(--gold-dim);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .prepare__label:hover {
  background: rgba(58, 69, 82, .46);
  border-left-color: var(--gold);
}

.page-contact .prepare__box {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.page-contact .prepare__mark {
  flex: 0 0 auto;
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--gold-dim);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .prepare__mark::after {
  content: "";
  position: absolute;
  top: 1px;
  left: 5px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(40deg) scale(.4);
  opacity: 0;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .prepare__box:checked + .prepare__mark {
  background: var(--gold);
  border-color: var(--gold);
}

.page-contact .prepare__box:checked + .prepare__mark::after {
  opacity: 1;
  transform: rotate(40deg) scale(1);
}

.page-contact .prepare__box:focus-visible + .prepare__mark {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
}

.page-contact .prepare__box:checked ~ .prepare__text {
  color: var(--gold-hi);
}

.page-contact .prepare__text {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}

.page-contact .prepare__text strong {
  display: block;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .08em;
  color: var(--porcelain);
  margin-bottom: 2px;
}

.page-contact .prepare__tail {
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
  margin: 22px 0 0;
}

/* ---------- 响应 ---------- */
.page-contact .reply {
  padding-block: 54px;
  border-bottom: 1px solid var(--c-hair);
}

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

.page-contact .reply__item {
  position: relative;
  padding: 22px 22px 24px;
  background: linear-gradient(170deg, rgba(58, 69, 82, .38), rgba(11, 11, 13, .8));
  border-top: 1px solid var(--c-hair-strong);
}

.page-contact .reply__num {
  display: block;
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-contact .reply__title {
  font-size: 1.05rem;
  letter-spacing: .12em;
  margin: 0 0 10px;
}

.page-contact .reply__item p {
  font-family: var(--font-sans);
  font-size: 13.8px;
  line-height: 1.9;
  color: var(--mist);
  margin: 0;
}

/* ---------- 备案条带 ---------- */
.page-contact .registry {
  margin-top: 54px;
  padding: 30px 22px 34px;
  background:
    linear-gradient(120deg, rgba(31, 42, 46, .92), rgba(11, 11, 13, .96) 62%),
    repeating-linear-gradient(90deg, rgba(200, 164, 92, .07) 0 1px, transparent 1px 34px);
  border-top: 2px solid var(--gold-dim);
  border-bottom: 1px solid var(--c-hair);
}

.page-contact .registry__grid {
  display: grid;
  gap: 18px;
  padding: 20px 0 22px;
  border-top: 1px solid var(--c-hair);
  border-bottom: 1px solid var(--c-hair);
}

.page-contact .registry__k {
  display: block;
  font-family: var(--font-sans);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gold);
  margin-bottom: 7px;
}

.page-contact .registry__v {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .03em;
  color: var(--porcelain);
  margin: 0;
  word-break: break-all;
}

.page-contact .registry__note {
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--mist);
  margin: 20px 0 0;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .lobby {
    grid-template-columns: 1.25fr .75fr;
    align-items: start;
    gap: 44px;
  }

  .page-contact .lobby__figure {
    margin-top: 26px;
  }

  .page-contact .desks__grid {
    grid-template-columns: 1.05fr .95fr;
    gap: 26px;
  }

  .page-contact .desk--addr {
    margin-top: 38px;
  }

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

  .page-contact .reply__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .reply__item:nth-child(2) {
    margin-top: 24px;
  }

  .page-contact .reply__item:nth-child(3) {
    margin-top: 48px;
  }

  .page-contact .registry__grid {
    grid-template-columns: 1.4fr 1.1fr .5fr;
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-contact .ticket {
    grid-template-columns: .82fr 1.18fr;
    align-items: start;
    gap: 48px;
  }

  .page-contact .ticket__figure {
    position: sticky;
    top: 96px;
  }

  .page-contact .lobby {
    padding-block: 14px 74px;
  }

  .page-contact .desks,
  .page-contact .ticket,
  .page-contact .prepare,
  .page-contact .reply {
    padding-block: 68px;
  }

  .page-contact .registry {
    padding: 40px 40px 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 1ms !important;
  }
}
<<<END>>>