.page-contact {
  --pc-gap: clamp(16px, 2.4vw, 28px);
  --pc-border: 1px solid var(--ink-600);
}

.page-contact .page-contact__body {
  min-width: 0;
  padding: 26px var(--gutter) 72px;
}

@media (min-width: 900px) {
  .page-contact .page-contact__body {
    padding: 44px clamp(24px, 4vw, 56px) 96px;
  }
}

.page-contact .sg-section + .sg-section {
  margin-top: clamp(40px, 6vw, 72px);
}

/* ---------- 首屏框景 ---------- */
.page-contact .page-contact__hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(22px, 4vw, 52px);
  border: var(--pc-border);
  border-radius: var(--radius);
  background: rgba(6, 14, 24, 0.62);
}

.page-contact .page-contact__heroimg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .page-contact__heroimg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: grayscale(0.5) contrast(1.08);
}

.page-contact .page-contact__hero::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(201, 162, 39, 0.34);
  pointer-events: none;
}

.page-contact .page-contact__hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 10px;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(201, 162, 39, 0.5) 0 1px,
    transparent 1px 26px
  );
  pointer-events: none;
}

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

.page-contact .page-contact__h1 {
  margin: 14px 0 18px;
  font-size: clamp(1.85rem, 5.2vw, 3.3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.06;
  color: var(--paper);
}

.page-contact .page-contact__lead {
  max-width: 62ch;
  margin: 0;
  color: var(--paper-dim);
  font-size: 16px;
  line-height: 1.8;
}

.page-contact .page-contact__quick {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 26px 0 24px;
  padding: 20px;
  background: rgba(11, 26, 43, 0.74);
  border: var(--pc-border);
}

@media (min-width: 640px) {
  .page-contact .page-contact__quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .page-contact__quickitem {
  padding-left: 14px;
  border-left: 2px solid var(--cinnabar);
}

.page-contact .page-contact__quickkey {
  margin: 0 0 6px;
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-contact .page-contact__quickval {
  margin: 0;
  color: var(--paper);
  font-size: 15px;
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .page-contact__herocta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 咨询前准备 ---------- */
.page-contact .page-contact__prepgrid {
  margin-top: 26px;
}

.page-contact .page-contact__prepcard {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .page-contact__prepcard .sg-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-contact .page-contact__prepcard p {
  margin: 0;
}

/* ---------- 三条通道 ---------- */
.page-contact .page-contact__channelsgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: 28px;
}

@media (min-width: 1024px) {
  .page-contact .page-contact__channelsgrid {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-contact .page-contact__channelstack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .page-contact__channel {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.page-contact .page-contact__channel p {
  margin: 0;
}

.page-contact .page-contact__chanval {
  color: var(--gold);
  font-size: 15px;
  word-break: break-word;
}

.page-contact .page-contact__chanaddr {
  color: var(--paper);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .page-contact__channelnote {
  padding: 24px;
}

.page-contact .page-contact__channelnote .sg-h3 {
  margin-top: 0;
}

.page-contact .page-contact__mlist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0 18px;
  padding: 0;
  list-style: none;
}

.page-contact .page-contact__mlist li {
  position: relative;
  padding-left: 16px;
  line-height: 1.7;
}

.page-contact .page-contact__mlist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  background: var(--cinnabar);
}

.page-contact .page-contact__channelnote .sg-muted {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 四类咨询方向 ---------- */
.page-contact .page-contact__topiclist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .page-contact__detail {
  border: var(--pc-border);
  border-radius: var(--radius);
  background: rgba(11, 26, 43, 0.5);
  overflow: hidden;
}

.page-contact .page-contact__detail > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 17px 18px;
  color: var(--paper);
  font-size: 1.02rem;
  font-weight: 700;
  list-style: none;
  cursor: pointer;
  transition: background 0.24s ease-out;
}

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

.page-contact .page-contact__detail > summary::after {
  content: "+";
  margin-left: auto;
  color: var(--cinnabar);
  font-family: var(--font-mono);
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 400;
}

.page-contact .page-contact__detail[open] > summary {
  background: rgba(27, 49, 73, 0.62);
  border-bottom: var(--pc-border);
}

.page-contact .page-contact__detail[open] > summary::after {
  content: "−";
}

.page-contact .page-contact__detailbody {
  padding: 16px 18px 20px;
}

.page-contact .page-contact__detailbody p {
  margin: 0 0 12px;
  line-height: 1.78;
}

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

.page-contact .page-contact__topiclink {
  color: var(--mist);
  font-size: 14px;
}

/* ---------- 响应时效 ---------- */
.page-contact .page-contact__responsegrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: 26px;
}

@media (min-width: 780px) {
  .page-contact .page-contact__responsegrid {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: center;
  }
}

.page-contact .page-contact__clockcard {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 22px;
  background: rgba(11, 26, 43, 0.55);
  border: var(--pc-border);
}

.page-contact .page-contact__clock {
  width: 100%;
  max-width: 176px;
  height: auto;
}

.page-contact .page-contact__clockcap {
  margin: 0;
  color: var(--mist);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-align: center;
}

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

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

/* ---------- 到访与邮寄 ---------- */
.page-contact .page-contact__visitbox {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  margin-top: 24px;
  padding: clamp(20px, 3vw, 36px);
  background: rgba(11, 26, 43, 0.52);
  border: var(--pc-border);
}

.page-contact .page-contact__skyline {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 58%;
  z-index: -1;
  opacity: 0.4;
}

.page-contact .page-contact__addr {
  margin: 0 0 14px;
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .page-contact__visitbox p:not(.page-contact__addr) {
  margin: 0 0 12px;
  max-width: 62ch;
  line-height: 1.8;
}

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

/* ---------- 推进路径收束带 ---------- */
.page-contact .page-contact__band {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(22px, 3vw, 38px);
  background: linear-gradient(135deg, rgba(27, 49, 73, 0.92), rgba(6, 14, 24, 0.96));
  border: var(--pc-border);
  border-top: 3px solid var(--cinnabar);
}

.page-contact .page-contact__flowsteps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 680px) {
  .page-contact .page-contact__flowsteps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .page-contact__flowsteps li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(6, 14, 24, 0.55);
  border-left: 2px solid var(--cinnabar);
}

.page-contact .page-contact__flowsteps strong {
  color: var(--paper);
  font-size: 1rem;
  font-weight: 700;
}

.page-contact .page-contact__flowsteps span:last-child {
  color: var(--mist);
  font-size: 14px;
  line-height: 1.65;
}

.page-contact .page-contact__fnum {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .page-contact__bandnote {
  margin: 22px 0 0;
  color: var(--paper-dim);
  font-size: 14px;
  line-height: 1.75;
}

/* ---------- 窄屏收尾 ---------- */
@media (max-width: 560px) {
  .page-contact .page-contact__hero::before {
    inset: 6px;
  }

  .page-contact .page-contact__quick {
    padding: 16px;
  }

  .page-contact .page-contact__quickitem {
    padding-left: 12px;
  }

  .page-contact .page-contact__chanval,
  .page-contact .page-contact__quickval {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .page-contact__detail > summary {
    transition: none;
  }
}
<<<END>>>