.page-contact {
  background: var(--sky-abyss);
  color: var(--fog);
  padding-bottom: clamp(56px, 9vw, 120px);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumbs {
  padding-top: clamp(20px, 4vw, 36px);
}

.page-contact .breadcrumbs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cool);
}

.page-contact .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
}

.page-contact .breadcrumbs__link {
  color: var(--cool);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--step-fast) ease, border-color var(--step-fast) ease;
}

.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--teal-mist);
  border-bottom-color: var(--teal-mist);
}

.page-contact .breadcrumbs__sep {
  color: var(--cool);
  opacity: 0.5;
}

.page-contact .breadcrumbs__current {
  color: var(--fog);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(36px, 6vw, 82px) 0 clamp(34px, 5vw, 68px);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(126, 147, 184, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 147, 184, 0.1) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 92% at 80% 8%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 92% at 80% 8%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__title {
  margin: 18px 0 0;
  max-width: 17ch;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.04;
  font-size: clamp(2rem, 6.4vw, 4rem);
}

.page-contact .contact-hero__lead {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--fog);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: clamp(28px, 5vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .contact-hero__fact {
  background: var(--sky-panel);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .contact-hero__fact-v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--teal-mist);
}

.page-contact .contact-hero__fact-l {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cool);
}

/* ---------- 通用区块间距 ---------- */
.page-contact .contact-lines,
.page-contact .contact-flow,
.page-contact .contact-card-section,
.page-contact .contact-fix,
.page-contact .contact-scope,
.page-contact .contact-faq,
.page-contact .contact-links {
  padding: clamp(44px, 7vw, 88px) 0;
}

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

.page-contact .contact-lines__title,
.page-contact .contact-flow__title,
.page-contact .contact-fix__title,
.page-contact .contact-scope__title,
.page-contact .contact-faq__title,
.page-contact .contact-links__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.005em;
  line-height: 1.12;
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  color: #fff;
}

.page-contact .contact-lines__lead,
.page-contact .contact-fix__lead {
  margin-top: 16px;
  color: var(--fog);
}

/* ---------- 合作方向 ---------- */
.page-contact .contact-banner {
  margin: clamp(28px, 4vw, 44px) 0;
  padding: 0;
  border: 1px solid var(--line-soft);
  background: var(--sky-panel);
  position: relative;
}

.page-contact .contact-banner::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 84px;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--teal-mist));
}

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

.page-contact .contact-banner .media__caption,
.page-contact .contact-step__media .media__caption {
  display: block;
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cool);
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-lines__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
}

.page-contact .contact-line {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  background: var(--sky-card);
  border: 1px solid var(--line-soft);
  transition: transform var(--step-base) ease, border-color var(--step-base) ease;
}

.page-contact .contact-line:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.page-contact .contact-line::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--teal) 0%, transparent 62%);
  opacity: 0.7;
}

.page-contact .contact-line__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--teal);
}

.page-contact .contact-line__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  letter-spacing: 0.01em;
  color: #fff;
}

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

.page-contact .contact-line__more {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
}

.page-contact .contact-line__more summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--teal-mist);
  transition: color var(--step-fast) ease;
}

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

.page-contact .contact-line__more summary::marker {
  content: "";
}

.page-contact .contact-line__more summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--teal);
}

.page-contact .contact-line__more[open] summary::after {
  content: "－";
}

.page-contact .contact-line__more summary:hover {
  color: var(--teal);
}

.page-contact .contact-line__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .contact-line__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cool);
}

.page-contact .contact-line__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 1px;
  background: var(--teal);
}

/* ---------- 推进流程 ---------- */
.page-contact .contact-flow {
  background: var(--sky-panel);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-flow__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 40px);
}

.page-contact .contact-flow__nav {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-contact .contact-flow__nav .anchor-nav__link {
  display: block;
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cool);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--line-strong);
  transition: color var(--step-fast) ease, border-color var(--step-fast) ease, background var(--step-fast) ease;
}

.page-contact .contact-flow__nav .anchor-nav__link:hover,
.page-contact .contact-flow__nav .anchor-nav__link:focus-visible {
  color: var(--teal-mist);
  border-left-color: var(--teal);
  background: rgba(31, 165, 160, 0.08);
}

.page-contact .contact-flow__nav .anchor-nav__link.is-active {
  color: #fff;
  border-left-color: var(--orange);
  background: rgba(255, 106, 26, 0.1);
}

.page-contact .contact-flow__steps {
  display: grid;
  gap: clamp(24px, 3.4vw, 36px);
}

.page-contact .contact-step {
  position: relative;
  padding: 0 0 clamp(26px, 3.6vw, 40px) clamp(26px, 4vw, 46px);
  border-left: 1px solid var(--line-strong);
}

.page-contact .contact-step:last-of-type {
  padding-bottom: 0;
}

.page-contact .contact-step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(31, 165, 160, 0.16);
}

.page-contact .contact-step__no {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-contact .contact-step__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  color: #fff;
}

.page-contact .contact-step__body {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fog);
}

.page-contact .contact-step__media {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  border: 1px solid var(--line-soft);
  background: var(--sky-card);
}

/* ---------- 联系方式卡 ---------- */
.page-contact .contact-card-section {
  background:
    radial-gradient(120% 100% at 50% 0%, rgba(31, 165, 160, 0.12) 0%, transparent 62%),
    var(--sky-abyss);
}

.page-contact .contact-card {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(30px, 5vw, 58px) clamp(22px, 4vw, 54px) clamp(26px, 4vw, 46px);
  padding-left: calc(clamp(22px, 4vw, 54px) + 12px);
  background: var(--paper);
  color: var(--ink-dark);
  box-shadow:
    0 0 0 1px var(--print-line),
    0 26px 62px rgba(3, 10, 26, 0.52),
    16px 16px 0 -6px rgba(244, 241, 233, 0.12);
}

.page-contact .contact-card__edge {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 9px;
  background: var(--sky-abyss);
}

.page-contact .contact-card__edge::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: linear-gradient(180deg, var(--teal), transparent);
}

.page-contact .contact-card__fold {
  position: absolute;
  top: 0;
  right: 0;
  padding: 9px 18px 9px 24px;
  background: var(--orange);
  color: #0A1633;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  clip-path: polygon(14px 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .contact-card__title {
  margin: 0;
  padding-right: 84px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  letter-spacing: -0.005em;
  color: var(--ink-dark);
}

.page-contact .contact-card__lead {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: #33456B;
}

.page-contact .contact-card__list {
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-card__row {
  display: grid;
  gap: 8px;
  padding: clamp(15px, 2.4vw, 21px) 0;
  border-top: 1px solid var(--print-line);
}

.page-contact .contact-card__key {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: #56688C;
}

.page-contact .contact-card__val {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.6;
  color: var(--ink-dark);
}

.page-contact .contact-card__mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(14px, 1.6vw, 16px);
  word-break: break-all;
  color: var(--ink-dark);
}

.page-contact .contact-card__copy {
  flex: 0 0 auto;
}

.page-contact .contact-card__copy:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-contact .contact-card__note {
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--print-line);
  font-size: 13px;
  line-height: 1.7;
  color: #56688C;
}

/* ---------- 数据纠错 ---------- */
.page-contact .contact-fix__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
}

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

.page-contact .contact-fix__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--sky-panel);
  transition: background var(--step-fast) ease;
}

.page-contact .contact-fix__item:hover {
  background: var(--sky-card);
}

.page-contact .contact-fix__no {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--teal);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal-mist);
}

.page-contact .contact-fix__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--fog);
}

/* ---------- 服务范围 ---------- */
.page-contact .contact-scope {
  background: var(--sky-panel);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-scope__grid {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .contact-scope__cell {
  background: var(--sky-abyss);
  padding: clamp(18px, 2.6vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .contact-scope__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--teal-mist);
}

.page-contact .contact-scope__l {
  font-size: 14px;
  line-height: 1.72;
  color: var(--cool);
}

/* ---------- 合作问答 ---------- */
.page-contact .contact-faq__list {
  margin-top: clamp(24px, 4vw, 38px);
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-qa {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-qa__q {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: clamp(16px, 2.4vw, 22px) 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: #fff;
  transition: color var(--step-fast) ease;
}

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

.page-contact .contact-qa__q::marker {
  content: "";
}

.page-contact .contact-qa__q::after {
  content: "＋";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--teal);
}

.page-contact .contact-qa[open] .contact-qa__q {
  color: var(--teal-mist);
}

.page-contact .contact-qa[open] .contact-qa__q::after {
  content: "－";
}

.page-contact .contact-qa__q:hover {
  color: var(--teal-mist);
}

.page-contact .contact-qa__a {
  padding: 0 0 clamp(18px, 2.6vw, 24px);
}

.page-contact .contact-qa__a p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fog);
  border-left: 2px solid var(--teal);
  padding-left: 16px;
}

/* ---------- 相关页面 ---------- */
.page-contact .contact-links__list {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .contact-links__link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--sky-panel);
  text-decoration: none;
  transition: background var(--step-fast) ease, padding-left var(--step-fast) ease;
}

.page-contact .contact-links__link:hover,
.page-contact .contact-links__link:focus-visible {
  background: var(--sky-card);
  padding-left: 26px;
}

.page-contact .contact-links__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: #fff;
  letter-spacing: 0.02em;
}

.page-contact .contact-links__name::after {
  content: " →";
  color: var(--teal);
}

.page-contact .contact-links__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--cool);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-card__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: center;
  }

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

@media (min-width: 760px) {
  .page-contact .contact-lines__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .contact-links__item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-flow__inner {
    grid-template-columns: minmax(190px, 250px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
    align-items: start;
  }

  .page-contact .contact-flow__index {
    position: sticky;
    top: 104px;
  }

  .page-contact .contact-flow__nav {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-contact .contact-flow__nav .anchor-nav__link {
    border-left-width: 3px;
  }

  .page-contact .contact-fix__split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-line,
  .page-contact .contact-links__link,
  .page-contact .contact-flow__nav .anchor-nav__link,
  .page-contact .breadcrumbs__link {
    transition: none;
  }

  .page-contact .contact-line:hover {
    transform: none;
  }

  .page-contact .contact-links__link:hover {
    padding-left: 20px;
  }
}
<<<END>>>