.page-contact {
  --ct-line: rgba(143, 163, 186, .16);
  --ct-fill: rgba(22, 35, 61, .62);
  --ct-warm-glow: rgba(255, 154, 77, .26);
  padding-bottom: clamp(48px, 7vw, 90px);
}

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

.page-contact .section {
  margin-top: clamp(34px, 5.2vw, 64px);
}

/* 面包屑 */
.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: clamp(16px, 2.8vw, 26px);
  font-size: .8rem;
  letter-spacing: .04em;
}

.page-contact .crumb-link {
  color: var(--mist);
  text-decoration: none;
  transition: color .25s var(--ease);
}

.page-contact .crumb-link:hover {
  color: var(--cyan);
}

.page-contact .crumb-sep {
  color: var(--mist);
  opacity: .55;
}

.page-contact .crumb-current {
  color: var(--silver);
  font-weight: 600;
}

.page-contact .crumb-jump {
  margin-left: auto;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(53, 240, 208, .4);
  padding-bottom: 1px;
}

.page-contact .crumb-jump:hover {
  color: var(--cyan-mist);
}

/* 首屏 */
.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.8vw, 26px);
}

.page-contact .contact-hero__left {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ct-line);
  border-radius: var(--r-xl);
  padding: clamp(20px, 3.4vw, 38px);
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(53, 240, 208, .12), transparent 58%),
    linear-gradient(158deg, var(--nebula), var(--night) 72%);
}

.page-contact .contact-hero__left::before {
  content: "";
  position: absolute;
  top: -90px;
  right: -70px;
  width: 240px;
  height: 240px;
  background: conic-gradient(from 205deg, rgba(53, 240, 208, .38), transparent 46%);
  filter: blur(30px);
  opacity: .6;
  pointer-events: none;
}

.page-contact h1 {
  position: relative;
  margin: .42em 0 .38em;
  font-size: clamp(1.85rem, 5.2vw, 3rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--silver);
}

.page-contact .lede {
  position: relative;
  max-width: 34em;
  color: var(--mist);
  font-size: clamp(.92rem, 2.4vw, 1rem);
  line-height: 1.78;
}

/* 大号联系信息 */
.page-contact .dial {
  position: relative;
  margin-top: clamp(18px, 3vw, 26px);
  padding-top: clamp(16px, 2.6vw, 22px);
  border-top: 1px dashed var(--ct-line);
}

.page-contact .dial__label {
  margin: 0;
  font-size: .72rem;
  letter-spacing: .26em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-contact .dial__label--mail {
  margin-top: clamp(14px, 2.2vw, 20px);
}

.page-contact .dial__num {
  margin: .22em 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.72rem, 6.4vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: .02em;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(53, 240, 208, .28);
  overflow-wrap: anywhere;
}

.page-contact .dial__mail {
  margin: .3em 0 0;
  font-family: var(--font-mono);
  font-size: clamp(.82rem, 3.1vw, 1.02rem);
  letter-spacing: .01em;
  color: var(--silver);
  overflow-wrap: anywhere;
}

.page-contact .dial__hint {
  margin: .9em 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--mist);
}

/* 地域星图 */
.page-contact .contact-map {
  position: relative;
  margin: clamp(18px, 3vw, 26px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--ct-line);
}

.page-contact .contact-map img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-contact .contact-map .media-frame__tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: .34em .9em;
  border-radius: var(--r-pill);
  background: rgba(6, 10, 18, .72);
  border: 1px solid var(--ct-line);
  color: var(--mist);
  font-size: .72rem;
  letter-spacing: .1em;
}

/* 右侧渠道 */
.page-contact .contact-hero__right {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .trust-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .filter-btn {
  border: 1px solid var(--ct-line);
  background: var(--ct-fill);
  color: var(--mist);
  border-radius: var(--r-pill);
  padding: .52em 1.05em;
  font-family: inherit;
  font-size: .8rem;
  letter-spacing: .04em;
  cursor: pointer;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-contact .filter-btn:hover {
  color: var(--silver);
  border-color: rgba(53, 240, 208, .4);
}

.page-contact .filter-btn[aria-pressed="true"] {
  color: var(--cyan);
  border-color: rgba(53, 240, 208, .55);
  background: rgba(53, 240, 208, .13);
}

.page-contact .chan-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .chan {
  position: relative;
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--ct-line);
  border-radius: var(--r-lg);
  background: linear-gradient(152deg, var(--ct-fill), rgba(11, 20, 36, .94));
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}

.page-contact .chan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22%;
  bottom: 22%;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(var(--cyan), transparent);
  opacity: .4;
  transition: opacity .3s var(--ease), background .3s var(--ease);
}

.page-contact .chan:hover {
  border-color: var(--warm);
  transform: translateY(-3px);
  box-shadow: 0 20px 42px -26px var(--ct-warm-glow);
}

.page-contact .chan:hover::before {
  background: linear-gradient(var(--warm), transparent);
  opacity: 1;
}

.page-contact .chan .card-title {
  margin: .55em 0 .4em;
  font-size: clamp(1.02rem, 2.8vw, 1.16rem);
  font-weight: 700;
  color: var(--silver);
}

.page-contact .chan__value {
  margin: 0 0 .55em;
  font-family: var(--font-mono);
  font-size: clamp(.82rem, 2.7vw, .95rem);
  letter-spacing: .02em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .chan .card-note {
  margin: 0;
  font-size: .86rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .chan__link {
  display: inline-block;
  margin-top: .9em;
  color: var(--warm);
  font-size: .82rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 154, 77, .35);
  padding-bottom: 1px;
}

.page-contact .chan__link:hover {
  color: var(--amber);
}

.page-contact .filter-empty {
  margin: 0;
  padding: 14px 16px;
  border: 1px dashed var(--ct-line);
  border-radius: var(--r-md);
  color: var(--mist);
  font-size: .86rem;
  line-height: 1.7;
}

.page-contact .filter-empty[hidden] {
  display: none;
}

/* 说清问题 */
.page-contact .clarity {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 30px);
}

.page-contact .clarity__intro {
  margin: .5em 0 1.25em;
  max-width: 36em;
  color: var(--mist);
  font-size: .93rem;
  line-height: 1.78;
}

.page-contact .clarity h2,
.page-contact .band h2,
.page-contact .site-info h2 {
  margin: .35em 0 .5em;
  font-size: clamp(1.4rem, 3.8vw, 2rem);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--silver);
}

.page-contact .tip {
  border: 1px solid var(--ct-line);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, var(--ct-fill), rgba(11, 20, 36, .72));
  overflow: hidden;
}

.page-contact .tip + .tip {
  margin-top: 10px;
}

.page-contact .tip summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: clamp(13px, 2.2vw, 18px) clamp(14px, 2.4vw, 22px);
  font-weight: 700;
  font-size: .95rem;
  color: var(--silver);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .tip summary::after {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .25s var(--ease);
}

.page-contact .tip[open] summary::after {
  transform: rotate(-135deg);
}

.page-contact .tip__body {
  padding: 0 clamp(14px, 2.4vw, 22px) clamp(14px, 2.4vw, 20px);
  color: var(--mist);
  font-size: .89rem;
  line-height: 1.78;
}

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

.page-contact .tip__body ul {
  margin: .7em 0 0;
  padding-left: 1.15em;
  list-style: disc;
}

.page-contact .tip__body li {
  margin: .34em 0;
}

.page-contact .tip__link {
  display: inline-block;
  margin-top: .95em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, .38);
  padding-bottom: 1px;
}

.page-contact .tip__link:hover {
  color: var(--cyan-mist);
}

.page-contact .clarity__hint {
  margin: 16px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--warm);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(255, 154, 77, .08);
  color: var(--silver);
  font-size: .85rem;
  line-height: 1.7;
}

.page-contact .clarity__figure {
  margin: 0;
  border: 1px solid var(--ct-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--night);
}

.page-contact .clarity__figure img {
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

/* 服务时间 */
.page-contact .band__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.8vw, 30px);
  padding: clamp(20px, 3.2vw, 36px);
  border: 1px solid var(--ct-line);
  border-radius: var(--r-xl);
  background:
    linear-gradient(96deg, rgba(53, 240, 208, .1), transparent 46%),
    var(--night);
}

.page-contact .band__note {
  margin: 0;
  color: var(--mist);
  font-size: .89rem;
  line-height: 1.76;
  max-width: 30em;
}

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

.page-contact .band__items li {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: rgba(22, 35, 61, .66);
  border: 1px solid var(--ct-line);
}

.page-contact .band__num {
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 3.2vw, 1.25rem);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-contact .band__txt {
  font-size: .85rem;
  line-height: 1.68;
  color: var(--mist);
}

/* 站点信息 */
.page-contact .site-info__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 30px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--ct-line);
}

.page-contact .site-meta {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
}

.page-contact .site-meta > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  border: 1px dashed var(--ct-line);
  border-radius: var(--r-md);
  background: rgba(22, 35, 61, .5);
}

.page-contact .site-meta dt {
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-contact .site-meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(.84rem, 2.8vw, .95rem);
  letter-spacing: .02em;
  color: var(--silver);
  overflow-wrap: anywhere;
}

.page-contact .site-info__note {
  margin: 16px 0 0;
  font-size: .85rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .site-info__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, .35);
  padding-bottom: 1px;
}

.page-contact .site-info__note a:hover {
  color: var(--cyan-mist);
}

.page-contact .site-info__curve svg {
  width: 100%;
  height: auto;
  display: block;
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-contact .chan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1000px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(20px, 2.4vw, 32px);
  }

  .page-contact .contact-hero__left {
    position: sticky;
    top: 24px;
  }

  .page-contact .clarity {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .band__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: center;
  }

  .page-contact .site-info__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}
<<<END>>>