.page-contact {
  --co-slant: 14px;
  display: block;
  padding-bottom: 0;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding: 24px 0 4px;
}
.page-contact .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}
.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan);
}
.page-contact .breadcrumb [aria-current="page"] {
  color: var(--cyan);
}

/* ---------- 双栏骨架 ---------- */
.page-contact .co-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  padding-top: 12px;
}
.page-contact .co-main {
  position: relative;
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-contact .co-shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 60px;
    align-items: start;
  }
  .page-contact .co-main::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    right: -31px;
    width: 3px;
    background: linear-gradient(180deg, transparent, var(--cyan) 10%, var(--cyan) 90%, transparent);
    opacity: .4;
    pointer-events: none;
  }
  .page-contact .co-aside {
    position: sticky;
    top: 96px;
  }
}

/* ---------- 首屏 ---------- */
.page-contact .co-intro .page-title {
  margin: 10px 0 18px;
  max-width: 20ch;
}
.page-contact .co-intro .lede {
  max-width: 48ch;
}
.page-contact .co-quick {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
@media (min-width: 640px) {
  .page-contact .co-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-contact .co-quick-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 14px 16px;
  background: var(--panel);
  border: 3px solid var(--line);
  border-left: 6px solid var(--cyan);
  box-shadow: var(--shadow-hard-sm);
}
.page-contact .co-quick-item:nth-child(2) {
  border-left-color: var(--orange);
}
.page-contact .co-quick-item:nth-child(3) {
  border-left-color: var(--purple);
}
.page-contact .co-quick-value {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--lime);
  word-break: break-word;
}
.page-contact .co-quick-label {
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 区块通用 ---------- */
.page-contact .co-sec-lede {
  margin: 12px 0 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .co-dir-list {
  margin-top: 32px;
  display: grid;
  gap: 18px;
}
.page-contact .co-dir {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 22px 22px 20px;
  background: var(--panel);
  border: 3px solid var(--line);
  border-left: 8px solid var(--cyan);
  box-shadow: var(--shadow-hard-sm);
  transition: transform 320ms var(--ease), border-color 320ms var(--ease);
}
.page-contact .co-dir:nth-child(2) {
  border-left-color: var(--purple);
}
.page-contact .co-dir:nth-child(3) {
  border-left-color: var(--orange);
}
.page-contact .co-dir:nth-child(4) {
  border-left-color: var(--lime);
}
.page-contact .co-dir:hover {
  transform: translateY(-3px);
}
.page-contact .co-dir-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}
.page-contact .co-dir-idx {
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: .06em;
}
.page-contact .co-dir-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}
.page-contact .co-dir-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  max-width: 46ch;
}
.page-contact .co-dir-meta {
  margin: 2px 0 0;
  display: grid;
  gap: 12px;
  padding-top: 12px;
  border-top: 2px solid var(--line);
}
@media (min-width: 720px) {
  .page-contact .co-dir-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 24px;
  }
}
.page-contact .co-dir-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
}
.page-contact .co-dir-meta dd {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}
.page-contact .co-figure {
  margin: 36px 0 0;
}

/* ---------- 流程 ---------- */
.page-contact .co-steps {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-contact .co-step {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-top: 3px solid var(--line);
}
.page-contact .co-step:last-child {
  border-bottom: 3px solid var(--line);
}
.page-contact .co-step-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.page-contact .co-step-num {
  font-size: 22px;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: .08em;
}
.page-contact .co-step-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}
.page-contact .co-step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  max-width: 46ch;
}
.page-contact .co-step-need {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
.page-contact .co-step-need span {
  display: inline-block;
  margin-right: 10px;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--orange);
  border: 2px solid var(--orange);
}

/* ---------- 反馈面板 ---------- */
.page-contact .co-report {
  position: relative;
  margin: 48px 0;
  padding: 30px 24px;
  color: var(--ink);
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
  clip-path: polygon(0 0, 100% var(--co-slant), 100% 100%, 0 calc(100% - var(--co-slant)));
}
.page-contact .co-report .section-title {
  color: var(--ink);
  margin: 8px 0 0;
}
.page-contact .co-report-eyebrow {
  color: var(--ink);
  opacity: .7;
}
.page-contact .co-report-lede {
  margin: 12px 0 0;
  max-width: 42ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  opacity: .78;
}
.page-contact .co-report-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-contact .co-report-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 2px solid rgba(8, 10, 15, .18);
}
.page-contact .co-report-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-contact .co-report-idx {
  font-size: 16px;
  line-height: 1.4;
  color: var(--purple);
  letter-spacing: .06em;
}
.page-contact .co-report-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
}
.page-contact .co-report-list p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(8, 10, 15, .76);
}
.page-contact .co-report-note {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 3px solid var(--ink);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 常见问题 ---------- */
.page-contact .co-faq-list {
  margin-top: 26px;
}
.page-contact .co-faq-item {
  border-top: 3px solid var(--line);
  padding: 18px 0;
}
.page-contact .co-faq-item:last-child {
  border-bottom: 3px solid var(--line);
}
.page-contact .co-faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--text);
}
.page-contact .co-faq-item summary::-webkit-details-marker {
  display: none;
}
.page-contact .co-faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--cyan);
}
.page-contact .co-faq-item[open] summary::after {
  content: "\2212";
  color: var(--orange);
}
.page-contact .co-faq-item summary:hover {
  color: var(--cyan);
}
.page-contact .co-faq-item p {
  margin: 12px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 联系面板 ---------- */
.page-contact .co-aside {
  min-width: 0;
}
.page-contact .co-contact-card {
  display: grid;
  gap: 0;
  background: var(--panel);
  border: 3px solid var(--line);
  border-top: 6px solid var(--cyan);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}
.page-contact .co-card-figure {
  margin: 0;
  position: relative;
}
.page-contact .co-card-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 150px;
  object-fit: cover;
  opacity: .72;
}
.page-contact .co-card-body {
  padding: 22px 20px 24px;
  display: grid;
  gap: 6px;
}
.page-contact .co-contact-title {
  margin: 4px 0 12px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--text);
}
.page-contact .co-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .co-contact-list li {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 2px solid var(--line);
}
.page-contact .co-contact-list li:last-child {
  border-bottom: 0;
}
.page-contact .co-contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-contact .co-contact-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}
.page-contact .co-contact-value a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-contact .co-contact-value a:hover,
.page-contact .co-contact-value a:focus-visible {
  border-bottom-color: var(--cyan);
}
.page-contact .co-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 16px 0 0;
  padding: 6px 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  color: var(--cyan);
  border: 2px solid var(--cyan);
}
.page-contact .co-status::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(198, 255, 61, .2);
}
.page-contact .co-contact-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 继续浏览 ---------- */
.page-contact .co-next {
  margin-top: 56px;
}
.page-contact .co-next-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-contact .co-next-list li {
  min-width: 0;
}

@media (max-width: 480px) {
  .page-contact .co-report {
    padding: 24px 18px;
  }
  .page-contact .co-report-list li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 10px;
  }
  .page-contact .co-dir {
    padding: 18px 16px;
  }
}

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