.page-contact {
  --contact-photo: 14 / 9;
}

.page-contact .breadcrumb {
  margin: 26px 0 18px;
}

/* ---------- 首屏分屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 22px;
  margin-bottom: 12px;
}

.page-contact h1 {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(29px, 7vw, 50px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--star);
}

.page-contact h2 {
  margin: 10px 0 12px;
  font-family: var(--font-head);
  font-size: clamp(21px, 4vw, 31px);
  font-weight: 800;
  line-height: 1.26;
  color: var(--star);
}

.page-contact h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.4vw, 20px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--star);
}

.page-contact .lead {
  max-width: 60ch;
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--dim);
}

.page-contact .section-intro {
  max-width: 64ch;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 联系信息牌 ---------- */
.page-contact .info-board {
  position: relative;
  padding: 26px 22px 20px;
  border: 1px solid var(--hair-strong);
  background:
    radial-gradient(130% 100% at 100% 0%, rgba(47, 227, 214, 0.16), transparent 62%),
    radial-gradient(90% 90% at 0% 100%, rgba(76, 107, 255, 0.14), transparent 68%),
    linear-gradient(155deg, #16224a 0%, #0b1428 100%);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .info-board__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .info-row {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 16px 0 16px 16px;
  border-top: 1px solid var(--hair);
}

.page-contact .info-row:first-of-type {
  border-top: 0;
}

.page-contact .info-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: var(--cyan);
}

.page-contact .info-row--gold::before {
  background: var(--gold);
}

.page-contact .info-row__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.page-contact .info-row__value {
  font-size: 18px;
  font-weight: 600;
  color: var(--star);
  overflow-wrap: anywhere;
}

.page-contact .info-row__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--dim);
}

.page-contact .contact-hero__visual {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(160deg, var(--panel), var(--space-bg));
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: var(--contact-photo);
  object-fit: cover;
}

/* ---------- 三条通道 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 14px;
}

.page-contact .channel {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--hair);
  border-top: 2px solid var(--channel-accent, var(--cyan));
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(22, 34, 74, 0.92), rgba(11, 20, 40, 0.96));
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  transform: translateY(-3px);
}

.page-contact .channel--service {
  --channel-accent: var(--cyan);
}

.page-contact .channel--fix {
  --channel-accent: var(--gold);
}

.page-contact .channel--collab {
  --channel-accent: var(--orbit);
}

.page-contact .channel .tag {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--channel-accent, var(--cyan));
}

.page-contact .channel__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--dim);
}

.page-contact .channel__more {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--hair-strong);
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- 反馈筛选 ---------- */
.page-contact .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
}

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

.page-contact .note {
  padding: 18px 18px 18px 20px;
  border: 1px solid var(--hair);
  border-left: 3px solid var(--note-accent, var(--cyan));
  border-radius: 4px var(--radius) var(--radius) 4px;
  background: rgba(22, 34, 74, 0.5);
}

.page-contact .note[data-cat="consult"] {
  --note-accent: var(--cyan);
}

.page-contact .note[data-cat="fix"] {
  --note-accent: var(--gold);
}

.page-contact .note[data-cat="collab"] {
  --note-accent: var(--orbit);
}

.page-contact .note__title {
  font-size: 17px;
}

.page-contact .note__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 通信地址 ---------- */
.page-contact .address-block {
  display: grid;
  gap: 20px;
  padding: 24px 20px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background:
    radial-gradient(110% 120% at 0% 0%, rgba(255, 196, 107, 0.13), transparent 62%),
    linear-gradient(180deg, rgba(22, 34, 74, 0.75), rgba(5, 10, 24, 0.92));
}

.page-contact .address-line {
  display: inline-block;
  margin: 6px 0 14px;
  padding: 10px 14px;
  font-size: 17px;
  color: var(--gold);
  background: rgba(255, 196, 107, 0.08);
  border: 1px solid rgba(255, 196, 107, 0.34);
  border-radius: 8px;
}

.page-contact .address-block__text {
  max-width: 52ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--dim);
}

.page-contact .address-block__figure {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: 10px;
  overflow: hidden;
}

.page-contact .address-block__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 相关入口 ---------- */
.page-contact .more-title {
  font-size: clamp(19px, 3vw, 24px);
}

.page-contact .link-strip {
  display: grid;
  gap: 10px;
}

.page-contact .link-strip__item {
  display: block;
  padding: 16px 16px 14px;
  border: 1px solid var(--hair);
  border-radius: 10px;
  background: rgba(11, 20, 40, 0.72);
  color: var(--star);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .link-strip__item span {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--dim);
}

.page-contact .link-strip__item:hover,
.page-contact .link-strip__item:focus-visible {
  border-color: var(--cyan);
  background: rgba(47, 227, 214, 0.08);
}

/* ---------- 备案 ---------- */
.page-contact .contact-legal {
  padding-bottom: 56px;
}

.page-contact .contact-legal__title {
  font-size: 18px;
  letter-spacing: 0.04em;
}

.page-contact .contact-legal__icp {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--dim);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.08fr 1fr 0.94fr;
    gap: 16px;
  }

  .page-contact .note-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .note:first-child {
    grid-column: 1 / -1;
  }

  .page-contact .link-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
}

@media (min-width: 720px) and (hover: hover) {
  .page-contact .channel__more {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-width: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 220ms var(--ease), opacity 180ms var(--ease),
      margin-top 220ms var(--ease), padding-top 220ms var(--ease), border-top-width 220ms var(--ease);
  }

  .page-contact .channel:hover .channel__more,
  .page-contact .channel:focus-within .channel__more {
    max-height: 200px;
    margin-top: 12px;
    padding-top: 12px;
    border-top-width: 1px;
    opacity: 1;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 26px;
    align-items: start;
  }

  .page-contact .contact-hero__visual {
    position: sticky;
    top: calc(var(--strip-h) + 20px);
  }

  .page-contact .contact-hero__visual img {
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .page-contact .address-block {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 28px;
    padding: 30px 28px;
  }

  .page-contact .link-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel__more,
  .page-contact .link-strip__item {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-within {
    transform: none;
  }
}
<<<END>>>