.page-contact {
  --contact-stack: 12px;
  --contact-line: 1px solid var(--hairline);
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--font-body);
}

.page-contact a:focus-visible,
.page-contact input:focus-visible {
  outline: 2px solid var(--c-electric);
  outline-offset: 3px;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  margin: 0;
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(18px, 3vw, 32px) clamp(64px, 9vw, 110px);
  background: linear-gradient(158deg, var(--c-sand) 0%, var(--c-paper) 68%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 -1px 0;
  height: clamp(22px, 4.5vw, 58px);
  background: var(--c-paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(16px, 3vw, 30px);
  align-items: end;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-lake);
  margin: 0 0 12px;
}

.page-contact h1 {
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.04;
  max-width: 18ch;
  color: var(--c-highland);
}

.page-contact .contact-hero__lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 40em;
  font-size: clamp(1rem, 1.4vw, 1.08rem);
  line-height: 1.78;
  color: var(--c-rock);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-hero__facts li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: baseline;
  padding-top: 10px;
  border-top: var(--contact-line);
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--c-rock);
}

.page-contact .contact-hero__facts .mono {
  font-size: 0.78rem;
  color: var(--c-lake);
  letter-spacing: 0.08em;
}

.page-contact .contact-hero__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-rock);
  aspect-ratio: 5 / 4;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.02);
}

.page-contact .media-frame__caption {
  font-size: 0.78rem;
  color: var(--c-mist);
  padding: 8px 2px 0;
}

.page-contact .contact-hero__media .media-frame__caption {
  display: none;
}

/* ---------- 三条通道 ---------- */
.page-contact .contact-channels {
  padding-block: clamp(44px, 7vw, 88px);
  background: var(--c-paper);
}

.page-contact .channel-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .channel-stack {
  display: grid;
  gap: 14px;
}

.page-contact .channel-stack h2,
.page-contact .prep-column h2 {
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  font-weight: 700;
  color: var(--c-highland);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-lake);
  margin-bottom: 6px;
}

.page-contact .channel-card {
  position: relative;
  margin-left: calc(var(--stack, 0) * var(--contact-stack));
  padding: clamp(18px, 2.5vw, 26px);
  border: var(--contact-line);
  border-radius: var(--radius-lg);
  background: var(--c-paper);
  box-shadow: -8px 10px 0 -6px rgba(11, 43, 60, 0.07);
}

.page-contact .channel-card--primary {
  background: var(--c-highland);
  color: var(--c-paper);
  border-color: transparent;
  padding-block: clamp(24px, 3.4vw, 38px);
}

.page-contact .channel-card__kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-lake);
}

.page-contact .channel-card--primary .channel-card__kicker {
  color: var(--c-electric);
}

.page-contact .channel-card__title {
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--c-highland);
}

.page-contact .channel-card--primary .channel-card__title {
  color: var(--c-paper);
}

.page-contact .channel-card__value {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 1.8vw, 1.14rem);
  letter-spacing: 0.02em;
  color: var(--c-lake);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  word-break: break-all;
}

.page-contact .channel-card--primary .channel-card__value {
  color: var(--c-electric);
}

.page-contact .channel-card__value--addr {
  display: block;
  border-bottom: none;
  color: var(--c-rock);
  letter-spacing: 0.09em;
  word-break: normal;
  font-size: clamp(0.9rem, 1.6vw, 1rem);
}

.page-contact .channel-card__text {
  margin: 12px 0 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--c-rock);
}

.page-contact .channel-card--primary .channel-card__text {
  color: rgba(252, 251, 247, 0.86);
}

.page-contact .channel-card__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(252, 251, 247, 0.24);
  font-size: 0.82rem;
  line-height: 1.65;
  color: rgba(252, 251, 247, 0.72);
}

/* ---------- 准备清单 ---------- */
.page-contact .prep-column {
  background: var(--c-sand);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 34px);
}

.page-contact .prep-column__lead {
  margin: 14px 0 8px;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--c-rock);
  max-width: 36em;
}

.page-contact .prep-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  counter-reset: prep;
}

.page-contact .prep-item {
  border-top: var(--contact-line);
}

.page-contact .prep-item:first-child {
  border-top: none;
}

.page-contact .prep-item__label {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  cursor: pointer;
}

.page-contact .prep-item__box {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  border: 1px solid var(--c-mist);
  border-radius: 4px;
  background: var(--c-paper);
  transition: background 0.16s ease, border-color 0.16s ease;
}

.page-contact .prep-item__box:checked {
  background: var(--c-lake);
  border-color: var(--c-lake);
  box-shadow: inset 0 0 0 3px var(--c-paper);
}

.page-contact .prep-item__num {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--c-lake);
  padding-top: 4px;
}

.page-contact .prep-item__body {
  display: grid;
  gap: 4px;
}

.page-contact .prep-item__body strong {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--c-highland);
}

.page-contact .prep-item__body span {
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--c-rock);
}

.page-contact .prep-item__box:checked ~ .prep-item__body strong {
  color: var(--c-lake);
}

.page-contact .self-serve {
  margin-top: clamp(22px, 3vw, 32px);
  padding-top: clamp(18px, 2.4vw, 24px);
  border-top: 2px solid var(--c-rock);
}

.page-contact .self-serve h3 {
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--c-highland);
  margin-bottom: 14px;
}

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

.page-contact .self-serve__link {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 16px;
  align-items: center;
  padding: 14px 16px;
  border: var(--contact-line);
  border-radius: var(--radius-md);
  background: var(--c-paper);
  text-decoration: none;
  color: var(--c-ink);
  transition: border-color 0.16s ease, transform 0.16s ease;
}

.page-contact .self-serve__link::after {
  content: "→";
  grid-row: 1 / span 2;
  grid-column: 2;
  font-family: var(--font-mono);
  color: var(--c-lake);
  opacity: 0.45;
  transition: transform 0.16s ease, opacity 0.16s ease;
}

.page-contact .self-serve__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-highland);
}

.page-contact .self-serve__desc {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--c-mist);
}

.page-contact .self-serve__link:hover {
  border-color: var(--c-lake);
  transform: translateX(2px);
}

.page-contact .self-serve__link:hover::after,
.page-contact .self-serve__link:focus-visible::after {
  opacity: 1;
  transform: translateX(4px);
}

/* ---------- 协作 ---------- */
.page-contact .contact-collab {
  background: var(--c-highland);
  color: var(--c-paper);
  padding-block: clamp(46px, 7vw, 94px);
  clip-path: polygon(0 18px, 100% 0, 100% 100%, 0 100%);
}

.page-contact .collab-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-contact .contact-collab .eyebrow {
  color: var(--c-electric);
}

.page-contact .contact-collab h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  font-weight: 800;
  line-height: 1.14;
  max-width: 20ch;
  color: var(--c-paper);
}

.page-contact .collab-copy > p {
  margin: 16px 0 0;
  font-size: 0.96rem;
  line-height: 1.82;
  color: rgba(252, 251, 247, 0.82);
  max-width: 40em;
}

.page-contact .collab-stats {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(252, 251, 247, 0.18);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-contact .collab-stats li {
  background: var(--c-rock);
  padding: 14px 16px;
  display: grid;
  gap: 4px;
}

.page-contact .collab-stats__num {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--c-electric);
  line-height: 1;
}

.page-contact .collab-stats__label {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: rgba(252, 251, 247, 0.72);
}

.page-contact .collab-copy h3 {
  margin-top: clamp(24px, 3vw, 32px);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--c-paper);
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(47, 211, 192, 0.45);
}

.page-contact .collab-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .collab-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(252, 251, 247, 0.84);
}

.page-contact .collab-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-electric);
}

.page-contact .collab-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-rock);
  aspect-ratio: 10 / 7;
}

.page-contact .collab-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.04);
}

.page-contact .collab-media .media-frame__caption {
  color: rgba(252, 251, 247, 0.62);
}

/* ---------- 值守时间带 ---------- */
.page-contact .contact-hours {
  background: var(--c-sand);
  border-top: 3px solid var(--c-lake);
  padding-block: clamp(30px, 5vw, 56px);
}

.page-contact .contact-hours__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: center;
}

.page-contact .contact-hours h2 {
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 700;
  color: var(--c-highland);
  margin-bottom: 8px;
}

.page-contact .contact-hours__time {
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--c-lake);
}

.page-contact .contact-hours__copy p {
  margin: 0 0 8px;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--c-rock);
  max-width: 42em;
}

.page-contact .contact-hours__note {
  font-size: 0.84rem;
  color: var(--c-mist);
}

.page-contact .contact-hours__cta {
  justify-self: start;
  text-decoration: none;
  white-space: nowrap;
}

.page-contact .contact-hours__cta:hover {
  border-color: var(--c-lake);
  color: var(--c-lake);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .collab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .channel-layout {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-contact .collab-grid {
    grid-template-columns: 6fr 5fr;
    align-items: center;
  }

  .page-contact .contact-hours__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) auto;
    gap: clamp(20px, 3vw, 40px);
  }

  .page-contact .channel-card__value--addr {
    white-space: nowrap;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-hero__media {
    aspect-ratio: 3 / 2;
  }

  .page-contact .collab-media {
    aspect-ratio: 10 / 11;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-contact .self-serve__link,
  .page-contact .self-serve__link::after {
    transition: none;
  }
}
<<<END>>>

.page-contact {
  --stack: 1rem;
}