.page-contact{
  --contact-gap: clamp(26px, 4.6vw, 58px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .page-shell{
  padding-top: clamp(18px, 3vw, 32px);
}

.page-contact h1{
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(32px, 6.2vw, 60px);
  line-height: 1.08;
  margin: 14px 0 0;
  color: var(--paper);
}

.page-contact h2{
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(24px, 3.3vw, 37px);
  line-height: 1.2;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-contact h3{
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.35;
  margin: 6px 0 10px;
  color: var(--ink);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero{
  position: relative;
  margin-top: 16px;
  padding: clamp(24px, 4.4vw, 54px);
  border-radius: var(--radius);
  background: radial-gradient(130% 145% at 0% 0%, var(--navy-2) 0%, var(--navy) 62%, var(--ink) 100%);
  color: var(--paper);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-contact .contact-hero::before{
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid var(--line-light);
  border-radius: 2px;
  pointer-events: none;
}

.page-contact .contact-hero::after{
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: clamp(4px, 0.9vw, 8px);
  height: 100%;
  background: linear-gradient(180deg, var(--amber) 0%, rgba(230, 162, 60, 0) 88%);
}

.page-contact .contact-hero .kicker{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .contact-hero__lead{
  margin: 20px 0 0;
  max-width: 35em;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--aqua);
}

.page-contact .contact-hero__meta{
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 18px 0 0;
  list-style: none;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line-light);
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .contact-hero__meta li{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
}

.page-contact .contact-hero__meta .mono{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--amber);
}

/* ---------- 联系渠道 ---------- */
.page-contact .contact-channels{
  margin-top: var(--contact-gap);
}

.page-contact .channels-head{
  max-width: 44em;
}

.page-contact .channels-head .prose{
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--navy-2);
}

.page-contact .channels-body{
  margin-top: clamp(18px, 3vw, 30px);
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
}

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

.page-contact .channel-card{
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
  padding: 18px clamp(16px, 2.4vw, 24px) 20px;
  box-shadow: 0 1px 0 rgba(6, 18, 30, 0.05);
}

.page-contact .channel-card:nth-child(2){
  margin-left: clamp(0px, 1.8vw, 16px);
}

.page-contact .channel-card:nth-child(3){
  margin-left: clamp(0px, 3.6vw, 32px);
}

.page-contact .channel-card--plain{
  border-left-color: var(--navy-2);
  background: var(--mist);
}

.page-contact .channel-card__label{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-deep);
}

.page-contact .channel-value{
  margin: 0;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(13.5px, 1.7vw, 16.5px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--navy);
  background: var(--aqua);
  border-left: 2px solid var(--navy-2);
  border-radius: var(--radius);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-note{
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--navy-2);
}

.page-contact .channel-figure{
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--mist);
  overflow: hidden;
}

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

.page-contact .channel-figure .media-caption,
.page-contact .coast-figure .media-caption{
  padding: 10px 14px;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
  background: var(--white);
  border-top: 1px solid var(--line);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-rhythm{
  margin-top: var(--contact-gap);
  padding: clamp(24px, 4.4vw, 54px);
  border-radius: var(--radius);
  background: linear-gradient(200deg, var(--navy) 0%, var(--navy-2) 100%);
  color: var(--paper);
  box-shadow: var(--shadow-1);
}

.page-contact .rhythm-inner{
  display: grid;
  gap: clamp(22px, 3.6vw, 40px);
}

.page-contact .exhibit-label--light{
  color: var(--aqua);
}

.page-contact .exhibit-label--light .exhibit-label__num{
  background: var(--amber);
  color: var(--navy);
}

.page-contact .contact-rhythm h2{
  color: var(--paper);
}

.page-contact .rhythm-copy > p{
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--aqua);
}

.page-contact .rhythm-details{
  margin: 20px 0 24px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: rgba(214, 234, 240, 0.07);
}

.page-contact .rhythm-details summary{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .rhythm-details summary::before{
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--amber);
}

.page-contact .rhythm-details[open] summary::before{
  content: "−";
}

.page-contact .rhythm-details summary:focus-visible{
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-contact .rhythm-details__body{
  padding: 0 16px 14px;
  border-top: 1px solid var(--line-light);
}

.page-contact .rhythm-details__body p{
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--aqua);
}

.page-contact .rhythm-side{
  padding: 20px clamp(14px, 2.4vw, 24px) 18px;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: rgba(214, 234, 240, 0.06);
}

.page-contact .rhythm-scale{
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .rhythm-scale::before{
  content: "";
  position: absolute;
  left: 7px;
  right: 7px;
  top: 6px;
  height: 2px;
  background: rgba(230, 162, 60, 0.4);
}

.page-contact .rhythm-scale__item{
  display: flex;
  flex-direction: column;
}

.page-contact .rhythm-scale__tick{
  position: relative;
  z-index: 1;
  width: 14px;
  height: 14px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(230, 162, 60, 0.16);
}

.page-contact .rhythm-scale__num{
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--aqua);
}

.page-contact .rhythm-side__note{
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.68;
  color: var(--mist);
}

/* ---------- 反馈准备清单 ---------- */
.page-contact .contact-prep{
  margin-top: var(--contact-gap);
}

.page-contact .contact-prep .prose{
  margin: 12px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--navy-2);
}

.page-contact .prep-list{
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .prep-item label{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-contact .prep-item label:hover{
  border-color: var(--amber);
}

.page-contact .prep-item input[type="checkbox"]{
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  appearance: none;
  -webkit-appearance: none;
  border: 2px solid var(--stone);
  border-radius: 2px;
  background: var(--paper);
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease;
}

.page-contact .prep-item input[type="checkbox"]:checked{
  background: var(--amber);
  border-color: var(--amber-deep);
}

.page-contact .prep-item input[type="checkbox"]:checked::after{
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--navy);
  border-bottom: 2px solid var(--navy);
  transform: rotate(40deg);
}

.page-contact .prep-item input[type="checkbox"]:focus-visible{
  outline: 2px solid var(--amber-deep);
  outline-offset: 3px;
}

.page-contact .prep-text{
  font-size: 14px;
  line-height: 1.68;
  color: var(--navy-2);
}

.page-contact .prep-text strong{
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}

/* ---------- 纸质资料 ---------- */
.page-contact .contact-postal{
  margin-top: var(--contact-gap);
}

.page-contact .postal-copy{
  max-width: 46em;
}

.page-contact .contact-postal .prose{
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--navy-2);
}

.page-contact .postal-steps{
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .postal-steps li{
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 14px;
  font-size: 15px;
  line-height: 1.66;
  color: var(--navy-2);
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 2px solid var(--navy-2);
  border-radius: var(--radius);
}

.page-contact .postal-steps .mono{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--amber-deep);
}

.page-contact .postal-link{
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--navy-2);
}

.page-contact .coast-figure{
  margin: clamp(24px, 4vw, 38px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--mist);
  overflow: hidden;
}

.page-contact .coast-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
  filter: saturate(0.72) contrast(0.96);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px){
  .page-contact .prep-list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px){
  .page-contact .contact-hero{
    padding-right: clamp(48px, 8vw, 110px);
  }

  .page-contact .channels-body{
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }

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

  .page-contact .rhythm-inner{
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }

  .page-contact .coast-figure img{
    max-height: 360px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .prep-item label,
  .page-contact .prep-item input[type="checkbox"]{
    transition: none;
  }
}
<<<END>>>