.page-contact {
  --ct-ink-soft: #3B4A40;
  --ct-gap: clamp(16px, 2.4vw, 28px);
  background: var(--bh-paper);
  color: var(--bh-ink);
  font-family: var(--bh-sans);
}

.page-contact a:focus-visible {
  outline: 2px solid var(--bh-orange);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding: clamp(18px, 3vw, 32px) 0 clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--bh-line);
  background: linear-gradient(180deg, rgba(11, 107, 58, 0.09), rgba(244, 239, 227, 0) 72%);
}

.page-contact .bh-breadcrumb {
  font-family: var(--bh-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ct-ink-soft);
}

.page-contact .bh-breadcrumb a {
  color: var(--bh-green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .bh-breadcrumb a:hover {
  border-bottom-color: var(--bh-green);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(14px, 2.5vw, 24px);
}

.page-contact .ct-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 5.6vw, 56px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

.page-contact .ct-hero__sub {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--ct-ink-soft);
}

.page-contact .ct-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  background: var(--bh-line);
  border: 1px solid var(--bh-line);
}

.page-contact .ct-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 14px;
  background: var(--bh-cream);
}

.page-contact .ct-num {
  font-family: var(--bh-mono);
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--bh-green);
}

.page-contact .ct-unit {
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--ct-ink-soft);
}

/* 联系卡 */
.page-contact .ct-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: var(--bh-green-deep);
  color: var(--bh-cream);
  border-top: 5px solid var(--bh-orange);
}

.page-contact .ct-card__kicker {
  margin: 0;
  font-family: var(--bh-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: rgba(255, 252, 244, 0.6);
}

.page-contact .ct-card h2 {
  margin: 10px 0 20px;
  font-size: clamp(20px, 2.4vw, 25px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--bh-cream);
}

.page-contact .ct-card__list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.page-contact .ct-card__list dt {
  font-family: var(--bh-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: rgba(255, 252, 244, 0.58);
}

.page-contact .ct-card__list dd {
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.55;
  word-break: break-word;
}

.page-contact .ct-card__list a {
  color: var(--bh-cream);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 107, 33, 0.8);
}

.page-contact .ct-card__list a:hover {
  color: var(--bh-orange);
}

.page-contact .ct-card .bh-btn {
  display: block;
  margin-top: 22px;
  text-align: center;
}

.page-contact .ct-card__note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(255, 252, 244, 0.66);
}

/* ---------- 主体两栏 ---------- */
.page-contact .ct-body {
  padding: clamp(28px, 4vw, 48px) 0 clamp(40px, 6vw, 72px);
}

.page-contact .ct-body__grid {
  display: grid;
  gap: clamp(22px, 4vw, 48px);
}

.page-contact .ct-index {
  border-top: 2px solid var(--bh-ink);
  padding-top: 12px;
}

.page-contact .ct-index__title {
  margin: 0 0 10px;
  font-family: var(--bh-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--ct-ink-soft);
}

.page-contact .ct-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-index__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  font-size: 14px;
  color: var(--bh-ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .ct-index__list a:hover {
  color: var(--bh-green);
  border-bottom-color: var(--bh-green);
}

.page-contact .ct-index__num {
  font-family: var(--bh-mono);
  font-size: 11px;
  color: var(--bh-orange-deep);
}

.page-contact .ct-index__cta {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--bh-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--bh-blue);
  text-decoration: none;
  border-bottom: 1px solid var(--bh-blue);
}

/* ---------- 章节通用 ---------- */
.page-contact .ct-sec {
  margin-top: clamp(32px, 4.5vw, 56px);
  padding-top: clamp(30px, 4.5vw, 52px);
  border-top: 1px solid var(--bh-line);
}

.page-contact .ct-sec:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-contact .ct-sec__head {
  margin: 0 0 10px;
}

.page-contact .ct-sec h2 {
  margin: 0 0 12px;
  font-size: clamp(23px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.012em;
}

.page-contact .ct-sec__lead {
  max-width: 62ch;
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ct-ink-soft);
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-contact .ct-tag {
  padding: 6px 11px;
  font-family: var(--bh-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ct-ink-soft);
  background: var(--bh-cream);
  border: 1px solid var(--bh-line);
}

.page-contact .ct-tag:nth-child(odd) {
  color: var(--bh-green);
  border-color: var(--bh-green);
  background: rgba(11, 107, 58, 0.07);
}

.page-contact .ct-dirs {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--bh-line);
  border: 1px solid var(--bh-line);
}

.page-contact .ct-dir {
  padding: 18px 18px 20px;
  background: var(--bh-cream);
}

.page-contact .ct-dir__num {
  font-family: var(--bh-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--bh-orange-deep);
}

.page-contact .ct-dir h3 {
  margin: 6px 0 8px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.35;
}

.page-contact .ct-dir p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ct-ink-soft);
}

/* ---------- 图片 ---------- */
.page-contact .ct-figure {
  margin: 24px 0 0;
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--bh-line);
  background: var(--bh-blue-pale);
}

.page-contact .ct-figure figcaption {
  margin-top: 8px;
  font-family: var(--bh-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--ct-ink-soft);
}

/* ---------- 流程时间线 ---------- */
.page-contact .ct-steps {
  display: grid;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-step {
  position: relative;
  padding-top: 18px;
  border-top: 2px solid var(--bh-line);
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 0;
  width: 14px;
  height: 14px;
  background: var(--bh-orange);
}

.page-contact .ct-step__num {
  font-family: var(--bh-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--bh-orange-deep);
}

.page-contact .ct-step h3 {
  margin: 8px 0 8px;
  font-size: 16.5px;
  font-weight: 800;
}

.page-contact .ct-step p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ct-ink-soft);
}

.page-contact .ct-step details {
  padding-top: 8px;
  border-top: 1px dashed var(--bh-line);
}

.page-contact .ct-step summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--bh-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--bh-blue);
}

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

.page-contact .ct-step summary::after {
  content: "+";
  font-size: 15px;
  line-height: 1;
}

.page-contact .ct-step details[open] summary::after {
  content: "–";
}

.page-contact .ct-step details ul {
  margin: 10px 0 0;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ct-ink-soft);
}

/* ---------- 客服渠道 ---------- */
.page-contact .ct-channels {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--bh-line);
  border: 1px solid var(--bh-line);
}

.page-contact .ct-channel {
  padding: 20px 18px;
  background: var(--bh-cream);
}

.page-contact .ct-channel--mail {
  border-left: 4px solid var(--bh-orange);
  background: var(--bh-cream);
}

.page-contact .ct-channel__label {
  margin: 0;
  font-family: var(--bh-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--ct-ink-soft);
}

.page-contact .ct-channel__value {
  margin: 10px 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .ct-channel__value a {
  color: var(--bh-green);
  text-decoration: none;
  border-bottom: 1px solid var(--bh-line);
}

.page-contact .ct-channel__value a:hover {
  color: var(--bh-orange-deep);
  border-bottom-color: var(--bh-orange);
}

.page-contact .ct-channel__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ct-ink-soft);
}

.page-contact .ct-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--bh-blue);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ct-ink-soft);
}

/* ---------- 合作生态 ---------- */
.page-contact .ct-network {
  padding: clamp(20px, 3vw, 30px);
  background: var(--bh-blue-pale);
  border-left: 5px solid var(--bh-blue);
}

.page-contact .ct-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-contact .ct-metrics li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-contact .ct-metric__num {
  font-family: var(--bh-mono);
  font-size: clamp(20px, 2.5vw, 27px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--bh-blue);
}

.page-contact .ct-metric__label {
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--ct-ink-soft);
}

.page-contact .ct-support {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-support li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bh-ink);
}

.page-contact .ct-support li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 2px;
  background: var(--bh-blue);
}

/* ---------- 服务区域 ---------- */
.page-contact .ct-cities {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-contact .ct-city {
  padding: 5px 10px;
  font-family: var(--bh-mono);
  font-size: 12.5px;
  color: var(--bh-green);
  background: rgba(11, 107, 58, 0.07);
  border: 1px solid var(--bh-green);
}

.page-contact .ct-city:first-child {
  color: var(--bh-cream);
  background: var(--bh-green);
}

.page-contact .ct-region__facts {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--bh-line);
  border: 1px solid var(--bh-line);
}

.page-contact .ct-region__facts > div {
  display: grid;
  gap: 4px;
  padding: 13px 16px;
  background: var(--bh-cream);
}

.page-contact .ct-region__facts dt {
  font-family: var(--bh-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--ct-ink-soft);
}

.page-contact .ct-region__facts dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq {
  border-top: 1px solid var(--bh-line);
}

.page-contact .ct-faq__item {
  border-bottom: 1px solid var(--bh-line);
}

.page-contact .ct-faq__item summary {
  position: relative;
  padding: 15px 34px 15px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
}

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

.page-contact .ct-faq__item summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 13px;
  font-family: var(--bh-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--bh-orange-deep);
}

.page-contact .ct-faq__item[open] summary::after {
  content: "–";
}

.page-contact .ct-faq__item[open] summary {
  color: var(--bh-green);
}

.page-contact .ct-faq__body {
  max-width: 66ch;
  margin: 0;
  padding: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ct-ink-soft);
}

/* ---------- 结尾邀约 ---------- */
.page-contact .ct-close {
  margin-top: clamp(32px, 4vw, 56px);
  padding: clamp(24px, 4vw, 40px);
  background: var(--bh-green-deep);
  color: var(--bh-cream);
  border-left: 6px solid var(--bh-orange);
}

.page-contact .ct-close h2 {
  margin: 0 0 10px;
  font-size: clamp(21px, 2.8vw, 28px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--bh-cream);
}

.page-contact .ct-close p {
  margin: 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(255, 252, 244, 0.76);
}

.page-contact .ct-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .ct-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-contact .ct-region__facts > div {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 720px) {
  .page-contact .ct-dirs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-steps {
    gap: 30px;
  }
}

@media (min-width: 880px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-contact .ct-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    border-top: 2px solid var(--bh-line);
    padding-top: 0;
  }

  .page-contact .ct-step {
    border-top: 0;
    padding: 22px 18px 0 0;
    position: relative;
  }

  .page-contact .ct-step::before {
    top: -8px;
    left: 0;
  }

  .page-contact .ct-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--bh-line);
  }
}

@media (min-width: 960px) {
  .page-contact .ct-body__grid {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .ct-index {
    position: sticky;
    top: 96px;
  }

  .page-contact .ct-index__list {
    display: grid;
    gap: 0;
    flex-wrap: nowrap;
  }

  .page-contact .ct-index__list a {
    padding: 9px 0;
    border-bottom: 1px solid var(--bh-line);
  }

  .page-contact .ct-index__list a:hover {
    border-bottom-color: var(--bh-green);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>