.page-contact {
  --co-pad-y: clamp(36px, 6vw, 76px);
  background: var(--night-pitch);
  color: var(--silver);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-x: hidden;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  color: var(--paper);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact p {
  margin: 0;
}

.page-contact a {
  color: var(--lime);
  text-decoration: none;
}

.page-contact a:hover,
.page-contact a:focus-visible {
  text-decoration: underline;
}

.page-contact .co-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--frame-x);
}

/* 面包屑 */
.page-contact .breadcrumbs {
  padding-top: 18px;
}

.page-contact .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-contact .breadcrumbs a {
  color: var(--silver);
}

/* 首屏 */
.page-contact .co-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  padding: clamp(26px, 5vw, 54px) 0 clamp(34px, 6vw, 64px);
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  left: calc(var(--frame-x) * -1);
  right: calc(var(--frame-x) * -1);
  height: 88%;
  background: var(--sheen);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 54% 100%, 0 86%);
  opacity: .92;
}

.page-contact .co-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image: linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 86px 100%;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  pointer-events: none;
}

.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lime);
}

.page-contact .eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--lime);
}

.page-contact .co-hero h1 {
  font-size: clamp(32px, 6.6vw, 60px);
  line-height: 1.06;
  transform: skewX(-2deg);
  transform-origin: left bottom;
  margin-bottom: 18px;
  max-width: 15ch;
}

.page-contact .co-hero__intro {
  font-size: clamp(15px, 1.7vw, 17px);
  color: var(--silver);
  max-width: 56ch;
  margin-bottom: 26px;
}

.page-contact .co-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.page-contact .co-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 12px;
  background: rgba(13, 46, 34, .82);
}

.page-contact .co-fact__v {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--lime);
}

.page-contact .co-fact__k {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .02em;
}

/* 右侧对接窗口 */
.page-contact .co-quick {
  position: relative;
  align-self: start;
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, rgba(27, 46, 58, .96), rgba(6, 26, 19, .96));
  padding: clamp(20px, 3vw, 28px);
}

.page-contact .co-quick::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 64px;
  height: 3px;
  background: var(--lime);
}

.page-contact .co-quick__title {
  font-size: 20px;
  margin-bottom: 12px;
}

.page-contact .co-quick__list {
  margin: 0 0 20px;
}

.page-contact .co-quick__item {
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .co-quick__item:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-contact .co-quick__item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-contact .co-quick__item dd {
  margin: 4px 0 0;
  font-size: 14.5px;
  color: var(--paper);
}

/* 区块骨架 */
.page-contact .co-section {
  padding: var(--co-pad-y) 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .co-head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-contact .co-head h2 {
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.14;
}

.page-contact .co-head__lead {
  font-size: 15px;
  color: var(--muted);
  max-width: 48ch;
}

/* 合作方向 */
.page-contact .co-dirs {
  display: grid;
  gap: clamp(12px, 1.8vw, 18px);
}

.page-contact .co-dir {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-soft);
  background: linear-gradient(170deg, rgba(13, 46, 34, .92), rgba(6, 26, 19, .92));
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-contact .co-dir:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.page-contact .co-dir__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lime);
}

.page-contact .co-dir h3 {
  font-size: clamp(19px, 2.2vw, 23px);
}

.page-contact .co-dir p {
  font-size: 14.5px;
  color: var(--silver);
}

.page-contact .co-dir__fit {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--muted);
}

/* 图片框 */
.page-contact .media-frame {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line-soft);
  background: var(--cold-slate);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .media-frame__cap {
  padding: 12px 16px;
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
  background: rgba(6, 26, 19, .7);
}

.page-contact .co-shot {
  margin-top: clamp(24px, 4vw, 40px);
}

/* 流程 */
.page-contact .co-flow {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .co-flow__step {
  position: relative;
  padding: 0 0 26px 28px;
  border-left: 1px solid var(--line);
}

.page-contact .co-flow__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .co-flow__step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 7px;
  width: 7px;
  height: 7px;
  background: var(--lime);
}

.page-contact .co-flow__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-contact .co-flow h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.page-contact .co-flow p {
  font-size: 14.5px;
  color: var(--silver);
  max-width: 34ch;
}

/* 适合谁 */
.page-contact .co-who {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-contact .co-who__item {
  display: grid;
  gap: 10px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .co-who__tag {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--night-pitch);
  background: var(--silver);
  padding: 3px 10px;
}

.page-contact .co-who__body h3 {
  font-size: clamp(18px, 2.2vw, 22px);
  margin-bottom: 8px;
}

.page-contact .co-who__body p {
  font-size: 14.5px;
  color: var(--silver);
  max-width: 62ch;
}

/* 联系渠道 */
.page-contact .co-channels {
  display: grid;
  gap: 14px;
}

.page-contact .co-channel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: clamp(18px, 2.6vw, 24px);
  border: 1px solid var(--line);
  background: rgba(27, 46, 58, .55);
}

.page-contact .co-channel__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .co-channel__value {
  flex: 1 1 220px;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 18px);
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .co-channel .copy-btn {
  flex: 0 0 auto;
}

.page-contact .co-notes {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-contact .co-note {
  padding: clamp(18px, 2.6vw, 24px);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--line-strong);
  background: rgba(6, 26, 19, .6);
}

.page-contact .co-note--lime {
  border-left-color: var(--lime);
}

.page-contact .co-note h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.page-contact .co-note p,
.page-contact .co-note li {
  font-size: 14px;
  color: var(--silver);
}

.page-contact .co-note ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.page-contact .co-note li::marker {
  color: var(--lime);
}

/* 到访 */
.page-contact .co-visit {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-contact .co-visit h2 {
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.15;
  margin-bottom: 14px;
}

.page-contact .co-visit__body p {
  font-size: 14.5px;
  color: var(--silver);
  max-width: 54ch;
}

.page-contact .co-visit__addr {
  display: block;
  margin: 18px 0 14px;
  padding: 14px 16px;
  font-style: normal;
  font-size: 15px;
  color: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  background: rgba(13, 46, 34, .7);
}

.page-contact .co-visit__hint {
  font-size: 13.5px !important;
  color: var(--muted) !important;
}

/* 常见问题 */
.page-contact .co-faq {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-contact .co-faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--paper);
  list-style: none;
}

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

.page-contact .co-faq__item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
}

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

.page-contact .co-faq__item summary:hover {
  color: var(--lime);
}

.page-contact .co-faq__body {
  padding: 0 4px 20px;
}

.page-contact .co-faq__body p {
  font-size: 14.5px;
  color: var(--silver);
  max-width: 68ch;
}

/* 焦点态 */
.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

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

  .page-contact .co-who__item {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
}

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

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

  .page-contact .co-visit {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .co-hero {
    grid-template-columns: minmax(0, 1.32fr) minmax(290px, .68fr);
    align-items: start;
  }

  .page-contact .co-head {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 40px;
    align-items: end;
  }

  .page-contact .co-head__lead {
    padding-bottom: 6px;
  }

  .page-contact .co-flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(16px, 2.4vw, 26px);
  }

  .page-contact .co-flow__step {
    padding: 26px 14px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .page-contact .co-flow__step::before {
    left: 0;
    top: -4px;
  }

  .page-contact .co-dir:nth-child(even) {
    margin-top: 26px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-dir,
  .page-contact .co-dir:hover {
    transition: none;
    transform: none;
  }
}
<<<END>>>