.page-contact {
  background: var(--paper);
  color: var(--ink);
  --co-ring: 0 0 0 3px rgba(255, 107, 74, 0.55);
}

/* ---------- 首屏斜切标题带 ---------- */
.page-contact .co-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  color: var(--paper);
  padding: clamp(26px, 5vw, 50px) 0 clamp(58px, 9vw, 108px);
  background:
    radial-gradient(130% 95% at 86% 6%, rgba(43, 240, 196, 0.16), transparent 58%),
    radial-gradient(90% 80% at 4% 96%, rgba(14, 116, 144, 0.42), transparent 62%),
    linear-gradient(155deg, var(--ink) 0%, var(--ink-2) 56%, var(--ink-3) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
}

.page-contact .co-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -12%;
  right: -14%;
  width: 52%;
  height: 132%;
  background: repeating-linear-gradient(
    116deg,
    rgba(154, 217, 228, 0.13) 0 2px,
    transparent 2px 20px
  );
  transform: skewX(-12deg);
  pointer-events: none;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  opacity: 0.45;
}

.page-contact .co-hero .breadcrumb {
  color: rgba(214, 230, 234, 0.72);
}

.page-contact .co-hero .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color 180ms ease;
}

.page-contact .co-hero .breadcrumb a:hover,
.page-contact .co-hero .breadcrumb a:focus-visible {
  color: var(--coral);
}

.page-contact .co-hero-grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .co-hero .eyebrow {
  color: var(--mist);
  margin: 0;
}

.page-contact .co-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(33px, 5.6vw, 62px);
  line-height: 1.07;
  letter-spacing: -0.03em;
  margin: 14px 0 0;
  max-width: 19ch;
  text-wrap: balance;
}

.page-contact .co-hero-lead {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(244, 239, 228, 0.86);
}

.page-contact .co-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-contact .co-hero-actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: var(--radius);
  font-size: 15px;
  text-decoration: none;
}

.page-contact .co-hero-actions .btn-outline {
  border: 1px solid var(--line-strong);
  color: var(--paper);
  background: transparent;
}

.page-contact .co-hero-actions .btn-primary {
  background: var(--coral);
  color: var(--ink);
  border: 1px solid var(--coral);
  font-weight: 700;
}

.page-contact .co-hero-actions .btn:focus-visible {
  outline: none;
  box-shadow: var(--co-ring);
}

.page-contact .co-hero-panel {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  align-self: end;
}

.page-contact .co-metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: rgba(6, 24, 38, 0.58);
}

.page-contact .co-metric-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(25px, 3.4vw, 33px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--neon);
}

.page-contact .co-metric-label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 左右分屏：合作方式 + 联系卡 ---------- */
.page-contact .co-split {
  padding: clamp(44px, 7vw, 92px) 0 clamp(40px, 6vw, 76px);
}

.page-contact .co-split-grid {
  display: grid;
  gap: clamp(30px, 4vw, 50px);
}

.page-contact .co-block-head .eyebrow {
  margin: 0;
}

.page-contact .co-block-head .section-title {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 12px 0 0;
}

.page-contact .co-block-head .section-lead {
  margin: 12px 0 0;
  max-width: 46ch;
  color: var(--rock);
  line-height: 1.75;
}

.page-contact .co-tabs {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .co-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-contact .co-tab {
  appearance: none;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line-dark-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--rock);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-contact .co-tab:hover {
  border-color: var(--teal);
  color: var(--teal-dark);
}

.page-contact .co-tab[aria-selected="true"] {
  background: var(--teal);
  border-color: var(--teal);
  color: #ffffff;
}

.page-contact .co-tab:focus-visible {
  outline: none;
  box-shadow: var(--co-ring);
}

.page-contact .co-panel {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  background: #ffffff;
  padding: clamp(20px, 3.2vw, 30px);
  box-shadow: var(--shadow-1);
}

.page-contact .co-panel + .co-panel {
  margin-top: 16px;
}

.page-contact .co-panel-lead {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .co-panel-meta {
  display: grid;
  gap: 14px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .co-meta-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--teal-dark);
  margin-bottom: 6px;
}

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

.page-contact .co-panel-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .co-panel-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-2);
}

.page-contact .co-panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 2px;
  background: var(--coral);
}

/* 联系卡 */
.page-contact .co-contact-card {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.4vw, 34px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(162deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--paper);
  box-shadow: var(--shadow-2);
}

.page-contact .co-contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--neon) 52%, var(--coral));
}

.page-contact .co-contact-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-contact .co-contact-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
}

.page-contact .co-contact-lead {
  margin: 12px 0 6px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(214, 230, 234, 0.84);
}

.page-contact .co-contact-card .contact-row {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .co-contact-card .contact-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .co-contact-card .contact-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .co-contact-row--address .contact-value {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.65;
}

.page-contact .co-contact-hours {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--neon);
}

.page-contact .co-contact-foot {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(214, 230, 234, 0.72);
}

.page-contact .co-contact-foot a {
  color: var(--mist);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .co-contact-foot a:hover,
.page-contact .co-contact-foot a:focus-visible {
  color: var(--coral);
}

/* ---------- 合作流程 ---------- */
.page-contact .co-flow {
  color: var(--paper);
  padding: clamp(64px, 10vw, 124px) 0 clamp(60px, 9vw, 112px);
  background:
    radial-gradient(100% 80% at 90% 0%, rgba(14, 116, 144, 0.4), transparent 62%),
    linear-gradient(180deg, var(--ink-2), var(--ink));
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
}

.page-contact .co-flow-head .eyebrow {
  color: var(--neon);
  margin: 0;
}

.page-contact .co-flow-head .section-title {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-contact .co-flow-head .section-lead {
  margin: 12px 0 0;
  max-width: 48ch;
  color: rgba(214, 230, 234, 0.82);
  line-height: 1.75;
}

.page-contact .co-flow-body {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  margin-top: clamp(28px, 4vw, 46px);
}

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

.page-contact .co-step {
  position: relative;
  padding: 18px 20px 18px 62px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(154, 217, 228, 0.05);
  transition: border-color 200ms ease, background-color 200ms ease;
}

.page-contact .co-step:hover,
.page-contact .co-step:focus-within {
  border-color: var(--line-strong);
  background: rgba(154, 217, 228, 0.1);
}

.page-contact .co-step-num {
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--neon);
}

.page-contact .co-step h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .co-step p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(214, 230, 234, 0.84);
}

.page-contact .co-step .co-step-deliver {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--coral);
  font-size: 13px;
  color: var(--mist);
}

.page-contact .co-flow-figure,
.page-contact .co-visit-figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(154, 217, 228, 0.06);
}

.page-contact .co-flow-figure img,
.page-contact .co-visit-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .co-flow-figure {
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

/* ---------- 适合谁 ---------- */
.page-contact .co-fit {
  padding: clamp(46px, 7vw, 92px) 0 clamp(40px, 6vw, 76px);
}

.page-contact .co-fit-head .eyebrow {
  margin: 0;
}

.page-contact .co-fit-head .section-title {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 12px 0 0;
}

.page-contact .co-fit-head .section-lead {
  margin: 12px 0 0;
  max-width: 50ch;
  color: var(--rock);
  line-height: 1.75;
}

.page-contact .co-fit-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3.6vw, 38px);
}

.page-contact .co-fit-card {
  position: relative;
  overflow: hidden;
  padding: 26px 20px 24px;
  background: #ffffff;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.page-contact .co-fit-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--card-accent, var(--teal));
}

.page-contact .co-fit-card:nth-child(1) { --card-accent: var(--teal); }
.page-contact .co-fit-card:nth-child(2) { --card-accent: var(--moss); }
.page-contact .co-fit-card:nth-child(3) { --card-accent: var(--clay); }
.page-contact .co-fit-card:nth-child(4) { --card-accent: var(--coral); }

.page-contact .co-fit-card:hover {
  border-color: var(--line-dark-strong);
  box-shadow: var(--shadow-2);
}

.page-contact .co-fit-card h3 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-contact .co-fit-card p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

.page-contact .co-fit-foot {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock);
}

.page-contact .co-fit-foot a {
  color: var(--teal-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .co-fit-foot a:hover,
.page-contact .co-fit-foot a:focus-visible {
  color: var(--clay);
}

/* ---------- 到访与支持 ---------- */
.page-contact .co-visit {
  padding: clamp(44px, 7vw, 88px) 0 clamp(52px, 8vw, 96px);
  background: var(--haze);
  border-top: 1px solid var(--line-dark);
}

.page-contact .co-visit-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
}

.page-contact .co-visit-copy .eyebrow {
  margin: 0;
}

.page-contact .co-visit-copy .section-title {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-contact .co-visit-lead {
  margin: 14px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-contact .co-note-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border-left: 3px solid var(--coral);
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  line-height: 1.65;
}

.page-contact .co-note-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-contact .co-visit-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .co-visit-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-contact .co-visit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border-radius: 1px;
  border: 1px solid var(--teal);
  background: rgba(154, 217, 228, 0.5);
}

.page-contact .co-visit-figure {
  border-color: var(--line-dark);
  background: #ffffff;
}

.page-contact .co-visit-figure img {
  border-radius: var(--radius);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .co-panel-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .co-metric {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
  }

  .page-contact .co-metric-num {
    min-width: 3ch;
  }
}

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

@media (min-width: 900px) {
  .page-contact .co-hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-contact .co-hero-panel {
    grid-template-columns: 1fr;
  }

  .page-contact .co-metric {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-contact .co-flow-body {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-contact .co-split-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .co-split-side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-contact .co-visit-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
  }
}

@media (min-width: 1120px) {
  .page-contact .co-fit-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .co-flow-body {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-tab,
  .page-contact .co-step,
  .page-contact .co-fit-card,
  .page-contact .co-hero .breadcrumb a {
    transition: none;
  }
}
<<<END>>>