.page-contact {
  --co-surface: #0E2A22;
  --co-surface-2: #164034;
  --co-hair: #24564A;
  padding-bottom: 72px;
}

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0 6px;
  font-size: 13px;
  color: var(--silver);
}

.page-contact .crumbs a {
  color: var(--silver);
  text-decoration: none;
  transition: color .2s ease;
}

.page-contact .crumbs a:hover { color: var(--lime); }

.page-contact .crumbs [aria-current="page"] { color: var(--fog); }

/* ---------- 首屏 ---------- */

.page-contact .co-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
  padding: 22px 0 52px;
}

.page-contact .co-hero-copy { min-width: 0; }

.page-contact .co-hero-copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 5.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--fog);
  max-width: 18ch;
}

.page-contact .co-hero-copy .lead {
  margin: 20px 0 0;
  max-width: 54ch;
}

.page-contact .co-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .co-hero-figure { margin: 0; }

.page-contact .co-hero-figure .figure-media {
  border-radius: var(--radius-m);
  border-color: var(--co-hair);
}

.page-contact .co-hero-figure .figure-caption { margin-top: 12px; }

@media (min-width: 960px) {
  .page-contact .co-hero {
    grid-template-columns: 1.02fr .98fr;
    gap: 52px;
    padding: 36px 0 70px;
  }
}

/* ---------- 左面板 + 右内容 ---------- */

.page-contact .co-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-top: 4px;
}

.page-contact .co-panel {
  background: linear-gradient(165deg, var(--ink-2) 0%, var(--ink) 84%);
  border: 1px solid var(--co-hair);
  border-left: 3px solid var(--lime);
  border-radius: var(--radius-m);
  padding: 26px 22px 24px;
  box-shadow: var(--shadow-island);
}

.page-contact .co-panel .eyebrow {
  display: block;
  margin-bottom: 10px;
}

.page-contact .co-panel-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.32;
  color: var(--fog);
}

.page-contact .co-channel {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px solid var(--co-hair);
}

.page-contact .co-channel:first-of-type { border-top: 0; }

.page-contact .co-channel-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-contact .co-channel-value {
  font-size: 16px;
  line-height: 1.6;
  color: var(--fog);
  word-break: break-word;
}

.page-contact .co-channel-value.mono {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--lime);
}

.page-contact .co-panel-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--co-hair);
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .co-panel-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.page-contact .co-panel-links a {
  font-size: 13px;
  color: var(--teal);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(79, 224, 192, .35);
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .co-panel-links a:hover {
  color: var(--lime);
  border-color: var(--lime);
}

.page-contact .co-flow {
  display: grid;
  gap: 58px;
  min-width: 0;
}

.page-contact .co-section { min-width: 0; }

.page-contact .co-section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.page-contact .co-section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-contact .co-section-sub {
  margin: 0;
  max-width: 62ch;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.75;
}

@media (min-width: 1000px) {
  .page-contact .co-layout {
    grid-template-columns: 336px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .co-panel { position: sticky; top: 132px; }
}

/* ---------- 合作方向 ---------- */

.page-contact .co-tracks {
  display: grid;
  gap: 16px;
}

.page-contact .co-track {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 26px 20px 22px;
  background: linear-gradient(170deg, var(--co-surface-2), var(--co-surface) 92%);
  border: 1px solid var(--co-hair);
  border-radius: var(--radius-s);
  overflow: hidden;
}

.page-contact .co-track::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--lime);
}

.page-contact .co-track-content::after { background: var(--teal); }
.page-contact .co-track-brand::after { background: var(--orange); }

.page-contact .co-track .tag { justify-self: start; }

.page-contact .co-track h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--fog);
}

.page-contact .co-track p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .co-track-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .co-track-list li {
  position: relative;
  padding-left: 17px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--fog);
}

.page-contact .co-track-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--lime);
  transform: rotate(45deg);
}

.page-contact .co-track-content .co-track-list li::before { background: var(--teal); }
.page-contact .co-track-brand .co-track-list li::before { background: var(--orange); }

@media (min-width: 820px) {
  .page-contact .co-tracks { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- 流程 ---------- */

.page-contact .co-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .co-step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 12px;
  border-top: 1px solid var(--co-hair);
  border-radius: var(--radius-s);
  transition: background .25s ease, box-shadow .25s ease;
}

.page-contact .co-step:last-child { border-bottom: 1px solid var(--co-hair); }

.page-contact .co-step:hover,
.page-contact .co-step:focus-within {
  background: rgba(36, 86, 74, .22);
  box-shadow: inset 3px 0 0 var(--lime);
}

.page-contact .co-step-num {
  align-self: start;
  display: grid;
  place-items: center;
  width: 44px;
  height: 28px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  background: var(--lime);
  border-radius: var(--radius-pill);
}

.page-contact .co-step-body { min-width: 0; }

.page-contact .co-step-body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--fog);
}

.page-contact .co-step-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .co-step .co-step-note {
  font-size: 14px;
  color: var(--teal);
}

@media (min-width: 700px) {
  .page-contact .co-step {
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 22px;
    padding: 24px 18px;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-contact .co-step-note {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height .3s ease, opacity .3s ease, margin-top .3s ease;
  }

  .page-contact .co-step:hover .co-step-note,
  .page-contact .co-step:focus-within .co-step-note {
    max-height: 130px;
    opacity: 1;
    margin-top: 10px;
  }
}

.page-contact .co-flow-figure {
  margin: 28px 0 0;
  position: relative;
}

.page-contact .co-flow-figure .figure-media {
  border-radius: var(--radius-m);
  border-color: var(--co-hair);
}

/* ---------- 材料清单 ---------- */

.page-contact .filter-bar { margin-bottom: 22px; }

.page-contact .co-materials {
  display: grid;
  gap: 12px;
}

.page-contact .co-material {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--co-hair);
  border-radius: var(--radius-s);
  transition: border-color .25s ease;
}

.page-contact .co-material:hover { border-color: var(--lime); }

.page-contact .co-check {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--co-hair);
  border-radius: 6px;
}

.page-contact .co-check::after {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--lime);
  border-radius: 3px;
  opacity: .5;
  transform: scale(.7);
  transition: opacity .25s ease, transform .25s ease;
}

.page-contact .co-material:hover .co-check::after {
  opacity: 1;
  transform: scale(1);
}

.page-contact .co-material-title {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--fog);
}

.page-contact .co-material p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

@media (min-width: 780px) {
  .page-contact .co-materials { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 数据纠错 ---------- */

.page-contact .co-correction {
  position: relative;
  overflow: hidden;
  padding: 28px 22px;
  background: linear-gradient(150deg, var(--co-surface-2), var(--ink-2) 74%);
  border: 1px solid var(--co-hair);
  border-radius: var(--radius-m);
}

.page-contact .co-correction::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(255, 106, 43, .3), transparent 68%);
  pointer-events: none;
}

.page-contact .co-correction h2 {
  position: relative;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--fog);
}

.page-contact .co-correction-grid {
  position: relative;
  display: grid;
  gap: 22px;
  margin-top: 18px;
}

.page-contact .co-correction p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .co-correction p:last-child { margin-bottom: 0; }

.page-contact .co-correction-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .co-correction-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 12px 14px;
  background: rgba(10, 15, 14, .38);
  border: 1px dashed var(--co-hair);
  border-radius: var(--radius-s);
  font-size: 14px;
  line-height: 1.6;
  color: var(--fog);
}

.page-contact .co-correction-list .mono {
  font-size: 13px;
  color: var(--orange);
}

@media (min-width: 780px) {
  .page-contact .co-correction-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 34px;
  }
}

/* ---------- 常见问题 ---------- */

.page-contact .co-faq {
  display: grid;
  gap: 14px;
}

.page-contact .co-faq-item {
  padding: 22px 22px 20px;
  background: var(--ink-2);
  border: 1px solid var(--co-hair);
  border-left: 3px solid var(--teal);
  border-radius: var(--radius-s);
}

.page-contact .co-faq-q {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--fog);
}

.page-contact .co-faq-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}
<<<END>>>