/* ===== 联系我们 · 页面专属样式（作用域 .page-contact） ===== */
.page-contact {
  --contact-line: rgba(169, 188, 203, 0.2);
  --contact-gap: 22px;
  color: var(--text-on-dark);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 34px;
  padding-bottom: 24px;
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--neon);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-size: clamp(30px, 8.4vw, 58px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-on-dark);
}

.page-contact .contact-hero__rule {
  height: 2px;
  margin: 26px 0 16px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--neon), rgba(233, 255, 87, 0.14) 46%, rgba(233, 255, 87, 0) 100%);
}

.page-contact .contact-hero__jump {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  font-size: 13.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--mist-dim);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .contact-hero__jump::after {
  content: "↓";
  font-family: var(--mono);
  font-size: 13px;
}

.page-contact .contact-hero__jump:hover,
.page-contact .contact-hero__jump:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 渠道区：左窄右宽 ---------- */
.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact .contact-rail__title {
  margin: 0 0 18px;
  font-size: clamp(21px, 4.6vw, 28px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--white);
}

.page-contact .contact-channel {
  position: relative;
  padding: 20px 20px 20px 22px;
  margin-bottom: 14px;
  background: var(--green);
  border: 1px solid var(--paper-line);
  border-left: 3px solid var(--neon);
  border-radius: var(--radius);
  transition: transform var(--t-mid) var(--ease),
              box-shadow var(--t-mid) var(--ease);
}

.page-contact .contact-channel:last-child {
  margin-bottom: 0;
}

.page-contact .contact-channel:hover,
.page-contact .contact-channel:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.page-contact .contact-channel__label {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .contact-channel__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(15px, 4.2vw, 19px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__value a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed var(--mist-dim);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .contact-channel__value a:hover,
.page-contact .contact-channel__value a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-contact .contact-channel__desc {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--mist);
}

.page-contact .contact-side {
  display: grid;
  gap: var(--contact-gap);
}

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

.page-contact .contact-tips {
  padding: 22px 22px 24px;
}

.page-contact .contact-tips__title {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--white);
}

.page-contact .contact-tips p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text-on-dark);
}

.page-contact .contact-tips__list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .contact-tips__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--mist);
}

.page-contact .contact-tips__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--neon);
  transform: rotate(45deg);
}

/* ---------- 来信地址 ---------- */
.page-contact .contact-visit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact .contact-visit__card {
  padding: 26px 24px 28px;
}

.page-contact .contact-visit__eyebrow {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
}

.page-contact .contact-visit__title {
  margin: 0 0 16px;
  font-size: clamp(21px, 4.8vw, 27px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
}

.page-contact .contact-visit__address {
  margin: 0 0 16px;
  padding-left: 14px;
  font-family: var(--mono);
  font-style: normal;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  border-left: 3px solid var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .contact-visit__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ink-soft);
}

/* ---------- 备案信息 ---------- */
.page-contact .contact-filing {
  border-top: 2px solid var(--neon);
  padding-top: 28px;
}

.page-contact .contact-filing__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
}

.page-contact .contact-filing__title {
  margin: 0;
  font-size: clamp(21px, 4.6vw, 28px);
  font-weight: 800;
  line-height: 1.28;
  color: var(--white);
}

.page-contact .contact-filing__list {
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--contact-line);
}

.page-contact .contact-filing__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .contact-filing__key {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .contact-filing__val {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .contact-filing__val.num {
  font-family: var(--mono);
  font-size: clamp(16px, 4.4vw, 20px);
  font-weight: 700;
  color: var(--neon);
}

.page-contact .contact-filing__sep {
  padding: 0 8px;
  color: var(--mist-dim);
}

.page-contact .contact-filing__val a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 216, 200, 0.42);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .contact-filing__val a:hover,
.page-contact .contact-filing__val a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-contact .contact-filing__note {
  margin: 0;
  max-width: 48em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 合作与建议 ---------- */
.page-contact .contact-collab__panel {
  position: relative;
  padding: 26px 22px 30px;
  overflow: hidden;
}

.page-contact .contact-collab__panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), var(--cyan), transparent 88%);
}

.page-contact .contact-collab__title {
  margin: 0 0 14px;
  font-size: clamp(21px, 4.8vw, 28px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--white);
}

.page-contact .contact-collab__panel > p {
  margin: 0 0 20px;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-on-dark);
}

.page-contact .contact-collab__list {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-contact .contact-collab__list li {
  display: grid;
  gap: 10px;
  padding: 16px 0;
  border-top: 1px solid var(--contact-line);
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .contact-collab__list li .slant-tag {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .contact-visit__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 30px;
    align-items: center;
  }

  .page-contact .contact-filing__row {
    grid-template-columns: 140px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }

  .page-contact .contact-hero {
    padding-top: 46px;
    padding-bottom: 30px;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 42px;
  }

  .page-contact .contact-channel {
    padding: 24px 26px;
  }

  .page-contact .contact-tips {
    padding: 28px 30px 30px;
  }

  .page-contact .contact-visit__card {
    padding: 34px 34px 36px;
  }

  .page-contact .contact-collab__panel {
    padding: 36px 40px 40px;
  }

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