.page-contact {
  --cc-ice-deep: #1D5A6B;
  --cc-ink-soft: rgba(42, 33, 24, .74);
  --cc-line-amber: rgba(245, 167, 59, .45);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  font-size: 13px;
  color: var(--stone);
  padding-block: clamp(1rem, 3vw, 1.6rem) .25rem;
}
.page-contact .breadcrumbs__item {
  color: var(--stone);
  text-decoration: none;
}
.page-contact .breadcrumbs a.breadcrumbs__item {
  color: var(--ice);
}
.page-contact .breadcrumbs a.breadcrumbs__item:hover {
  color: var(--gold-soft);
}
.page-contact .breadcrumbs__sep {
  color: rgba(138, 143, 153, .6);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(.75rem, 2.5vw, 1.5rem) clamp(2.5rem, 6vw, 5rem);
}
.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -25% -12% auto -12%;
  height: 78%;
  background:
    radial-gradient(58% 68% at 72% 12%, rgba(245, 167, 59, .17), transparent 72%),
    radial-gradient(52% 62% at 6% 32%, rgba(120, 198, 219, .13), transparent 72%);
  pointer-events: none;
  z-index: 0;
}
.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}
.page-contact .contact-hero__title {
  margin-block: .6rem .1rem;
  max-width: 15ch;
  color: var(--cream);
}
.page-contact .contact-hero__lede {
  max-width: 46ch;
  color: rgba(220, 235, 240, .82);
}
.page-contact .contact-hero__trail {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin-block: 1.5rem .6rem;
}
.page-contact .contact-hero__trail .trail__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(245, 167, 59, .2);
  transition: background .18s var(--ease), box-shadow .18s var(--ease);
}
.page-contact .contact-hero__trail .trail__dot.is-lit {
  background: var(--gold);
  box-shadow: 0 0 12px rgba(245, 167, 59, .75);
}
.page-contact .contact-hero__hint {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--ice);
  margin: 0;
}
.page-contact .contact-hero__media {
  position: relative;
  aspect-ratio: 14 / 9;
  border-radius: var(--radius-l);
  overflow: hidden;
}
.page-contact .contact-hero__media .media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.95) contrast(1.05);
}
.page-contact .contact-hero__media .media__caption {
  font-size: 12px;
  color: var(--stone);
}

/* ---------- 通道 ---------- */
.page-contact .contact-channels__head {
  max-width: 58ch;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}
.page-contact .contact-channels__lede {
  color: rgba(220, 235, 240, .78);
  line-height: 1.8;
}
.page-contact .contact-channels__filter {
  margin-bottom: 1.5rem;
}
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}
.page-contact .channel-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "label copy"
    "value value";
  align-items: center;
  gap: .45rem 1rem;
  padding: 1.15rem 1.25rem;
  border-radius: var(--radius-m);
  background: var(--panel);
  border: 1px solid var(--rail-line);
  box-shadow: var(--shadow-1);
  transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.page-contact .channel-row:hover,
.page-contact .channel-row:focus-within {
  transform: translateY(-4px);
  border-color: var(--cc-line-amber);
  background: var(--panel-2);
}
.page-contact .channel-row__label {
  grid-area: label;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
  transition: color .18s var(--ease);
}
.page-contact .channel-row:hover .channel-row__label,
.page-contact .channel-row:focus-within .channel-row__label {
  color: var(--gold-soft);
}
.page-contact .channel-row__value {
  grid-area: value;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2.6vw, 1.05rem);
  letter-spacing: .01em;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}
.page-contact .copy-chip {
  grid-area: copy;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  padding: .4rem .85rem;
  border-radius: 999px;
  border: 1px solid var(--cc-line-amber);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.page-contact .copy-chip:hover {
  background: rgba(245, 167, 59, .14);
  color: var(--gold-soft);
}
.page-contact .copy-chip:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}
.page-contact .copy-chip:active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}
.page-contact .contact-channels__note {
  margin-top: 1.6rem;
  max-width: 68ch;
}

/* ---------- 企业接入（奶油区） ---------- */
.page-contact .section--cream.contact-enterprise {
  color: var(--cream-ink);
}
.page-contact .contact-enterprise__head {
  max-width: 62ch;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}
.page-contact .contact-enterprise__kicker {
  color: var(--ember);
}
.page-contact .contact-enterprise__lede {
  color: var(--cc-ink-soft);
  line-height: 1.85;
}
.page-contact .enterprise-steps {
  list-style: none;
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-contact .enterprise-step {
  position: relative;
  padding: 1.3rem 1.35rem 1.4rem;
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, .45);
  border-left: 3px solid var(--ember);
}
.page-contact .enterprise-step__num {
  display: block;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--cc-ice-deep);
  margin-bottom: .5rem;
}
.page-contact .enterprise-step__title {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--cream-ink);
}
.page-contact .enterprise-step__body {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--cc-ink-soft);
}
.page-contact .contact-enterprise__tpl {
  border-radius: var(--radius-m);
  background: rgba(11, 13, 18, .06);
  border: 1px solid rgba(42, 33, 24, .16);
}
.page-contact .contact-enterprise__tpl .doc__summary {
  color: var(--cream-ink);
}
.page-contact .contact-enterprise__tpl .doc__num {
  color: var(--ember);
}
.page-contact .contact-enterprise__tpl .doc__body {
  color: var(--cc-ink-soft);
}
.page-contact .contact-enterprise__tpl-line {
  font-size: .88rem;
  line-height: 1.9;
  margin: 0 0 .35rem;
  padding-left: .9rem;
  border-left: 2px solid var(--ice);
  word-break: break-word;
}
.page-contact .contact-enterprise__tpl-note {
  margin: .9rem 0 0;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--cc-ink-soft);
}

/* ---------- 咨询准备 ---------- */
.page-contact .contact-prep__head {
  max-width: 58ch;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}
.page-contact .contact-prep__lede {
  color: rgba(220, 235, 240, .78);
  line-height: 1.8;
}
.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-contact .prep-item {
  position: relative;
  padding: 1.35rem 1.3rem 1.4rem;
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(23, 27, 36, .96), rgba(11, 13, 18, .82));
  border: 1px solid var(--rail-line);
  overflow: hidden;
}
.page-contact .prep-item::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(120, 198, 219, .16), transparent 70%);
  pointer-events: none;
}
.page-contact .prep-item__num {
  display: block;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--gold);
  margin-bottom: .6rem;
}
.page-contact .prep-item__title {
  margin: 0 0 .55rem;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--cream);
}
.page-contact .prep-item__body {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: rgba(220, 235, 240, .76);
}

/* ---------- 本地 / 远程 ---------- */
.page-contact .contact-mode__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}
.page-contact .contact-mode__media {
  aspect-ratio: 3 / 2;
  border-radius: var(--radius-l);
  overflow: hidden;
}
.page-contact .contact-mode__media .media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-contact .contact-mode__media .media__caption {
  font-size: 12px;
  color: var(--stone);
}
.page-contact .contact-mode__lede {
  max-width: 52ch;
  color: rgba(220, 235, 240, .78);
  line-height: 1.85;
}
.page-contact .remote-compare {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}
.page-contact .remote-col {
  padding: 1.3rem 1.3rem 1.4rem;
  border-radius: var(--radius-m);
  border-top: 3px solid var(--ice);
  background: rgba(11, 13, 18, .55);
}
.page-contact .remote-col:last-child {
  border-top-color: var(--gold);
}
.page-contact .remote-col__title {
  margin: 0 0 .55rem;
  font-size: 1.05rem;
  color: var(--cream);
}
.page-contact .remote-col__body {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: rgba(220, 235, 240, .76);
}
.page-contact .contact-mode__tip {
  margin-top: 1.5rem;
  padding-left: 1rem;
  border-left: 2px solid var(--ember);
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(220, 235, 240, .72);
}

/* ---------- 下一步 ---------- */
.page-contact .contact-next {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}
.page-contact .contact-next__title {
  max-width: 26ch;
  margin-bottom: 1.75rem;
}
.page-contact .next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}
.page-contact .next-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem .9rem;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-m);
  border: 1px solid var(--rail-line);
  background: var(--panel-2);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}
.page-contact .next-link:hover {
  transform: translateY(-3px);
  border-color: rgba(120, 198, 219, .45);
}
.page-contact .next-link a {
  font-size: 1.02rem;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 167, 59, .35);
}
.page-contact .next-link a:hover {
  color: var(--gold-soft);
}
.page-contact .next-link span {
  flex: 1 1 16rem;
  font-size: .92rem;
  line-height: 1.75;
  color: rgba(220, 235, 240, .7);
}

/* ---------- 窄屏 → 宽屏 ---------- */
@media (min-width: 720px) {
  .page-contact .channel-row {
    grid-template-columns: 11rem minmax(0, 1fr) auto;
    grid-template-areas: "label value copy";
    gap: 1.5rem;
    padding: 1.25rem 1.6rem;
  }
  .page-contact .enterprise-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .prep-list .prep-item:last-child {
    grid-column: 1 / -1;
  }
  .page-contact .remote-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(2.5rem, 5vw, 5rem);
  }
  .page-contact .contact-mode__inner {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: clamp(2.5rem, 5vw, 4.5rem);
  }
  .page-contact .contact-mode__media {
    position: sticky;
    top: 6rem;
  }
  .page-contact .enterprise-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .prep-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .prep-list .prep-item:last-child {
    grid-column: auto;
  }
  .page-contact .contact-next__title {
    max-width: 30ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-row,
  .page-contact .next-link,
  .page-contact .copy-chip,
  .page-contact .contact-hero__trail .trail__dot {
    transition: none;
  }
  .page-contact .channel-row:hover,
  .page-contact .next-link:hover {
    transform: none;
  }
}
<<<END>>>