.page-contact {
  --co-line: rgba(234, 243, 238, .12);
  --co-glass: rgba(234, 243, 238, .07);
  --co-ease: cubic-bezier(.22, .61, .36, 1);
  padding-bottom: 88px;
  font-family: var(--tx-body);
  color: var(--tx-text);
}

.page-contact #models,
.page-contact #process,
.page-contact #partners,
.page-contact #contact {
  scroll-margin-top: 84px;
}

/* ---------- 面包屑 ---------- */
.page-contact .tx-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 26px 0 16px;
  font-family: var(--tx-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--tx-mute);
}
.page-contact .tx-breadcrumb a {
  color: var(--tx-mute);
  text-decoration: none;
}
.page-contact .tx-breadcrumb a:hover,
.page-contact .tx-breadcrumb a:focus-visible {
  color: var(--tx-lime);
}
.page-contact .tx-breadcrumb span:last-child {
  color: var(--tx-soft);
}

/* ---------- 通用排版 ---------- */
.page-contact .tx-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--tx-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--tx-lime);
}
.page-contact .tx-eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--tx-lime);
  flex: none;
}
.page-contact .tx-h1 {
  margin: 0 0 16px;
  font-family: var(--tx-display);
  font-size: clamp(28px, 6.6vw, 52px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--tx-text);
}
.page-contact .tx-h2 {
  margin: 0 0 18px;
  font-family: var(--tx-display);
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--tx-text);
}
.page-contact .tx-h3 {
  margin: 8px 0 10px;
  font-family: var(--tx-display);
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.24;
  letter-spacing: -.005em;
  color: var(--tx-text);
}
.page-contact .co-h4 {
  margin: 0 0 6px;
  font-family: var(--tx-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--tx-text);
}
.page-contact .tx-lead {
  margin: 0 0 14px;
  max-width: 46ch;
  font-family: var(--tx-serif);
  font-size: 17px;
  line-height: 1.7;
  color: var(--tx-soft);
}

/* ---------- 首屏 ---------- */
.co-hero {
  display: grid;
  gap: 20px;
  margin-bottom: 44px;
}
.co-hero__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: 2px;
  background: linear-gradient(160deg, var(--tx-teal), var(--tx-ink));
}
.co-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.05);
}
.co-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 18, 17, 0) 42%, rgba(10, 18, 17, .78));
  pointer-events: none;
}
.co-hero__note {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--tx-mute);
}
.co-hero__note a {
  color: var(--tx-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--tx-lime);
}
.co-hero__note a:hover,
.co-hero__note a:focus-visible {
  color: var(--tx-lime);
}
.co-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 22px;
  background: var(--co-line);
  border-top: 1px solid var(--co-line);
  border-bottom: 1px solid var(--co-line);
}
.co-hero__stats > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 12px;
  background: var(--tx-ink);
}
.co-statnum {
  font-family: var(--tx-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--tx-lime);
  font-variant-numeric: tabular-nums;
}
.co-statnum em {
  font-style: normal;
  font-size: 15px;
}
.co-statlabel {
  font-size: 12px;
  line-height: 1.45;
  color: var(--tx-mute);
}

/* ---------- 对开面板 ---------- */
.co-split {
  display: grid;
  gap: 28px;
  margin-bottom: 60px;
}
.co-split__left,
.co-split__right {
  min-width: 0;
}

.co-model {
  position: relative;
  margin-top: 18px;
  padding: 24px 20px 22px;
  border-radius: 2px;
  border-left: 3px solid var(--tx-lime);
}
.co-model--teal {
  background: linear-gradient(150deg, var(--tx-teal) 0%, #0b1f26 100%);
}
.co-model--indigo {
  background: linear-gradient(150deg, var(--tx-indigo) 0%, #16113a 100%);
  border-left-color: var(--tx-orange);
}
.co-model__tag {
  display: inline-block;
  margin: 0;
  padding: 3px 8px;
  font-family: var(--tx-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--tx-ink);
  background: var(--tx-lime);
  border-radius: 1px;
}
.co-model--indigo .co-model__tag {
  background: var(--tx-orange);
  color: #1a0b02;
}
.co-model__desc {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tx-soft);
}
.co-model__desc a {
  color: var(--tx-text);
  text-decoration: none;
  border-bottom: 1px solid var(--tx-lime);
}
.co-model__desc a:hover,
.co-model__desc a:focus-visible {
  color: var(--tx-lime);
}
.co-model__more {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--co-line);
}
.co-model__more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--tx-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--tx-lime);
}
.co-model__more summary::-webkit-details-marker {
  display: none;
}
.co-model__more summary::after {
  content: "+";
  font-size: 14px;
  line-height: 1;
}
.co-model__more[open] summary::after {
  content: "–";
}
.co-model__more summary:focus-visible {
  outline: 2px solid var(--tx-lime);
  outline-offset: 3px;
}

.co-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.co-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--tx-soft);
}
.co-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 6px;
  background: var(--tx-lime);
  border-radius: 1px;
}
.co-list--tight {
  gap: 10px;
}
.co-list--tight li {
  font-size: 14px;
}

/* ---------- 流程时间轴 ---------- */
.co-flow__figure {
  margin: 4px 0 22px;
  overflow: hidden;
  border-radius: 2px;
  background: var(--tx-lift);
}
.co-flow__figure img {
  display: block;
  width: 100%;
  height: 180px;
  object-fit: cover;
}
.co-flow {
  margin: 0;
  padding: 0;
  list-style: none;
}
.co-flow__step {
  position: relative;
  padding: 0 0 22px 46px;
}
.co-flow__step::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 26px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--co-line), rgba(234, 243, 238, 0));
}
.co-flow__step:last-child {
  padding-bottom: 0;
}
.co-flow__step:last-child::before {
  display: none;
}
.co-flow__idx {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--co-line);
  border-radius: 1px;
  font-family: var(--tx-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--tx-mute);
  background: var(--tx-ink);
  transition: background .24s var(--co-ease), color .24s var(--co-ease), border-color .24s var(--co-ease);
}
.co-flow__step:hover .co-flow__idx,
.co-flow__step:focus-within .co-flow__idx {
  background: var(--tx-lime);
  border-color: var(--tx-lime);
  color: var(--tx-ink);
}
.co-flow__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--tx-soft);
}
.co-flow__meta {
  margin-top: 6px;
  font-family: var(--tx-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--tx-mute);
}

/* ---------- 适合对象 ---------- */
.co-partners {
  margin-bottom: 60px;
}
.co-partners__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--co-line);
}
.co-partners__list li {
  position: relative;
  padding: 20px 16px 20px 58px;
  border-bottom: 1px solid var(--co-line);
  transition: background .3s var(--co-ease);
}
.co-partners__list li:hover {
  background: var(--tx-field);
}
.co-partners__no {
  position: absolute;
  left: 8px;
  top: 24px;
  font-family: var(--tx-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--tx-mute);
  font-variant-numeric: tabular-nums;
}
.co-partners__list p {
  margin: 0;
  max-width: 72ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tx-soft);
}
.co-partners__list a {
  color: var(--tx-text);
  text-decoration: none;
  border-bottom: 1px solid var(--tx-lime);
}
.co-partners__list a:hover,
.co-partners__list a:focus-visible {
  color: var(--tx-lime);
}

/* ---------- 联系方式 ---------- */
.co-contact {
  padding: 32px 20px 36px;
  border-radius: 2px;
  border-left: 3px solid var(--tx-lime);
  background: linear-gradient(150deg, var(--tx-field) 0%, var(--tx-ink) 78%);
}
.co-contact__inner {
  max-width: 720px;
}
.co-contact__lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tx-soft);
}
.co-rows {
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--co-line);
}
.co-rows__row {
  display: grid;
  gap: 3px;
  padding: 13px 0;
  border-bottom: 1px solid var(--co-line);
}
.co-rows dt {
  font-family: var(--tx-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--tx-mute);
}
.co-rows dd {
  margin: 0;
  font-family: var(--tx-mono);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: .01em;
  color: var(--tx-text);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}
.co-routing {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--co-line);
}
.co-contact__foot {
  margin: 24px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--tx-mute);
}
.co-contact__foot a {
  color: var(--tx-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--tx-lime);
}
.co-contact__foot a:hover,
.co-contact__foot a:focus-visible {
  color: var(--tx-lime);
}

/* ---------- 贴边玻璃索引 ---------- */
.co-index {
  display: none;
}

/* ---------- 交互与动效 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--tx-lime);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-flow__idx,
  .page-contact .co-partners__list li,
  .page-contact .co-flow__meta {
    transition: none;
  }
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 640px) {
  .co-rows__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 0 18px;
  }
  .co-contact {
    padding: 36px 30px 40px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-contact {
    padding-bottom: 110px;
  }
  .co-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 32px;
    align-items: stretch;
    margin-bottom: 64px;
  }
  .co-hero__figure {
    aspect-ratio: auto;
    min-height: 100%;
  }
  .co-hero__body {
    padding: 10px 0;
  }
  .co-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 34px;
    align-items: start;
  }
  .co-model {
    padding: 28px 26px 26px;
  }
  .co-flow__figure img {
    height: 160px;
  }
  .co-flow__meta {
    opacity: 0;
    transition: opacity .26s var(--co-ease);
  }
  .co-flow__step:hover .co-flow__meta,
  .co-flow__step:focus-within .co-flow__meta {
    opacity: 1;
  }
  .co-partners__list li {
    padding: 24px 20px 24px 74px;
  }
  .co-partners__no {
    left: 20px;
    top: 28px;
  }
  .co-contact {
    padding: 44px 48px 48px;
  }
  .co-routing {
    margin-top: 34px;
    padding-top: 26px;
  }
}

/* ---------- 宽屏：贴边索引 ---------- */
@media (min-width: 1440px) {
  .co-index {
    position: fixed;
    right: 22px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px 10px;
    border: 1px solid var(--co-line);
    border-radius: 2px;
    background: var(--co-glass);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
  }
  .co-index a {
    padding: 6px 12px;
    border-left: 2px solid transparent;
    font-family: var(--tx-mono);
    font-size: 12px;
    letter-spacing: .06em;
    color: var(--tx-mute);
    text-decoration: none;
    transition: color .24s var(--co-ease), border-color .24s var(--co-ease), background .24s var(--co-ease);
  }
  .co-index a:hover,
  .co-index a:focus-visible {
    color: var(--tx-text);
    border-left-color: var(--tx-lime);
    background: rgba(182, 255, 60, .07);
  }
}
<<<END>>>