.page-contact {
  --pc-glow-1: rgba(0, 168, 107, .16);
  --pc-glow-2: rgba(212, 175, 55, .13);
  --pc-glow-3: rgba(108, 92, 231, .12);
  --pc-surface: rgba(242, 245, 247, .045);
  --pc-surface-2: rgba(5, 16, 31, .55);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(1.25rem, 4vw, 2.5rem) 0 clamp(2rem, 6vw, 4rem);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 130%;
  background:
    radial-gradient(420px 220px at 12% 18%, var(--pc-glow-1), transparent 70%),
    radial-gradient(360px 200px at 86% 6%, var(--pc-glow-2), transparent 72%),
    radial-gradient(540px 260px at 58% 86%, var(--pc-glow-3), transparent 75%);
  pointer-events: none;
  z-index: 0;
}

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

.page-contact .breadcrumb {
  margin-bottom: clamp(1.1rem, 3vw, 1.8rem);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.85rem, 7.2vw, 3.5rem);
  line-height: 1.18;
  letter-spacing: .01em;
  color: var(--cloud);
  margin: .5rem 0 1rem;
  max-width: 20ch;
}

.page-contact .contact-hero .lede {
  max-width: 58ch;
  color: var(--grey);
  font-size: clamp(.95rem, 3.6vw, 1.06rem);
  line-height: 1.8;
}

.page-contact .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-facts li {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .02em;
  color: var(--cloud);
  background: var(--pc-surface-2);
  border: 1px solid var(--line);
  border-radius: var(--pill);
  padding: .42rem .85rem;
  white-space: nowrap;
}

.page-contact .hero-frame {
  position: relative;
  margin: clamp(1.75rem, 5vw, 3rem) 0 0;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--night);
}

.page-contact .hero-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 20 / 9;
  object-fit: cover;
}

.page-contact .hero-frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  background: linear-gradient(180deg, rgba(11, 29, 58, 0), rgba(11, 29, 58, .88));
  pointer-events: none;
}

/* ---------- 章节通用微调 ---------- */
.page-contact .section-head {
  max-width: 62ch;
}

.page-contact .section-head .section-title {
  margin: .45rem 0 .7rem;
}

/* ---------- 01 联系方式总览 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .channel-card {
  position: relative;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.6rem 1.35rem 1.45rem;
  background: linear-gradient(160deg, rgba(242, 245, 247, .07), rgba(11, 29, 58, .42));
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 1.35rem;
  top: 0;
  width: 38px;
  height: 3px;
  border-radius: var(--pill);
  background: var(--gold);
}

.page-contact .channel-card--tel::before {
  background: var(--jade);
}

.page-contact .channel-card--visit::before {
  background: var(--cyan);
}

.page-contact .channel-card__num {
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .channel-card h3 {
  font-family: var(--font-serif);
  font-size: 1.16rem;
  font-weight: 700;
  color: var(--cloud);
  margin: .4rem 0 .7rem;
}

.page-contact .channel-card__fit {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .05em;
  color: var(--jade);
  border: 1px solid rgba(0, 168, 107, .42);
  border-radius: var(--pill);
  padding: .2rem .62rem;
  margin-bottom: .85rem;
}

.page-contact .channel-card__value {
  display: block;
  font-size: clamp(.88rem, 3.4vw, 1.02rem);
  line-height: 1.55;
  color: var(--cloud);
  background: rgba(5, 16, 31, .62);
  border: 1px dashed var(--line);
  border-radius: var(--r-sm);
  padding: .7rem .8rem;
  margin: 0 0 .85rem;
  overflow-wrap: anywhere;
  word-break: break-word;
  user-select: all;
}

.page-contact .channel-card__value--tel {
  color: var(--cyan);
  letter-spacing: .06em;
}

.page-contact .channel-card__text {
  margin: 0;
  color: var(--grey);
  font-size: .92rem;
  line-height: 1.8;
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .9fr) minmax(0, 1.05fr);
    gap: 1.25rem;
    align-items: start;
  }

  .page-contact .channel-card--tel {
    transform: translateY(1.75rem);
  }

  .page-contact .channel-card--visit {
    transform: translateY(.7rem);
  }
}

/* ---------- 02 响应时效 ---------- */
.page-contact .timing {
  margin-top: clamp(1.75rem, 5vw, 2.75rem);
}

.page-contact .timing__track {
  position: relative;
  height: 5px;
  border-radius: var(--pill);
  background: rgba(242, 245, 247, .1);
  overflow: hidden;
}

.page-contact .timing__fill {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--jade), var(--cyan) 58%, var(--gold));
}

.js .page-contact .timing__fill {
  transform: scaleX(0);
  transition: transform 1.1s var(--ease);
}

.js .page-contact .timing.is-in .timing__fill {
  transform: scaleX(1);
}

.page-contact .timing__marks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .timing__marks li {
  position: relative;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line-soft);
}

.page-contact .timing__marks li::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.page-contact .timing__step {
  display: block;
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--gold);
  margin-bottom: .45rem;
}

.page-contact .timing__marks strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  color: var(--cloud);
  margin-bottom: .4rem;
}

.page-contact .timing__marks p {
  margin: 0;
  color: var(--grey);
  font-size: .9rem;
  line-height: 1.75;
}

@media (min-width: 760px) {
  .page-contact .timing__marks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.6rem;
  }
}

/* ---------- 03 提问前可以先看 ---------- */
.page-contact .precheck {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .precheck__item {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  min-width: 0;
  padding: 1.45rem 1.35rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: var(--pc-surface);
  color: inherit;
  text-decoration: none;
  transition: transform .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}

.page-contact .precheck__item:hover,
.page-contact .precheck__item:focus-visible {
  transform: translateY(-3px);
  border-color: var(--line);
  background: rgba(0, 168, 107, .09);
}

.page-contact .precheck__meta {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-contact .precheck__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--cloud);
}

.page-contact .precheck__text {
  color: var(--grey);
  font-size: .9rem;
  line-height: 1.78;
}

.page-contact .precheck__go {
  margin-top: auto;
  padding-top: .5rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--cyan);
}

@media (min-width: 820px) {
  .page-contact .precheck {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

/* ---------- 04 合作洽谈 ---------- */
.page-contact .coop {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  align-items: start;
}

.page-contact .coop__list {
  min-width: 0;
}

.page-contact .coop__item {
  border-top: 1px solid var(--line-soft);
}

.page-contact .coop__item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .coop__item summary {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: 1.05rem .2rem;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .coop__icon {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  color: var(--jade);
}

.page-contact .coop__icon svg {
  display: block;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .coop__name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--cloud);
}

.page-contact .coop__hint {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: var(--grey);
  white-space: nowrap;
}

.page-contact .coop__toggle {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

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

.page-contact .coop__toggle::before {
  width: 10px;
  height: 1.5px;
}

.page-contact .coop__toggle::after {
  width: 1.5px;
  height: 10px;
  transition: opacity .25s var(--ease);
}

.page-contact .coop__item[open] .coop__toggle::after {
  opacity: 0;
}

.page-contact .coop__needs {
  margin: 0;
  padding: 0 0 1.2rem;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.page-contact .coop__needs li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--grey);
  font-size: .9rem;
  line-height: 1.75;
}

.page-contact .coop__needs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  opacity: .85;
}

.page-contact .coop__figure {
  display: block;
  margin: 0;
  min-width: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

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

@media (min-width: 920px) {
  .page-contact .coop {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 3rem;
  }

  .page-contact .coop__figure {
    margin-top: 1rem;
  }
}

/* ---------- 05 到访信息 ---------- */
.page-contact .visit-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 5vw, 2.6rem);
  background: linear-gradient(140deg, rgba(232, 216, 184, .1), rgba(11, 29, 58, .45));
}

.page-contact .visit-card .section-title {
  margin: .45rem 0 .8rem;
  overflow-wrap: anywhere;
}

.page-contact .visit-card__intro {
  max-width: 60ch;
  margin: 0;
  color: var(--grey);
  font-size: .95rem;
  line-height: 1.8;
}

.page-contact .visit-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
  margin: 1.75rem 0 0;
}

.page-contact .visit-list dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--gold);
  margin-bottom: .4rem;
}

.page-contact .visit-list dd {
  margin: 0;
  color: var(--grey);
  font-size: .92rem;
  line-height: 1.78;
}

@media (min-width: 760px) {
  .page-contact .visit-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.75rem;
  }
}

/* ---------- 收尾 ---------- */
.page-contact .closing {
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-contact .closing__inner {
  position: relative;
  max-width: 62ch;
  padding-left: clamp(1rem, 3vw, 1.75rem);
  border-left: 2px solid var(--jade);
}

.page-contact .closing__inner .section-title {
  margin: 0 0 .7rem;
}

.page-contact .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .precheck__item {
    transition: none;
  }

  .js .page-contact .timing__fill {
    transform: scaleX(1);
    transition: none;
  }

  .page-contact .coop__toggle::after {
    transition: none;
  }
}

@media (max-width: 420px) {
  .page-contact .hero-facts li {
    white-space: normal;
  }

  .page-contact .coop__hint {
    display: none;
  }
}
<<<END>>>