.page-contact {
  --co-bar-h: 4px;
  --co-radius: 3px;
  padding-bottom: 24px;
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  position: relative;
  isolation: isolate;
  padding-block: 28px 12px;
  overflow: hidden;
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -140px;
  right: -180px;
  width: min(560px, 90vw);
  height: min(520px, 80vw);
  background: linear-gradient(142deg, rgba(76, 107, 240, .38) 0%, rgba(53, 227, 210, .2) 48%, rgba(7, 16, 31, 0) 76%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .co-hero__inner {
  position: relative;
}

.page-contact .co-hero h1 {
  max-width: 20ch;
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(28px, 6.2vw, 44px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .co-hero .lede {
  max-width: 62ch;
  margin: 0 0 24px;
  color: var(--slate-muted);
  font-size: 16px;
  line-height: 1.75;
}

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

.page-contact .co-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  border-left: 2px solid var(--cyan-signal);
  font-size: 14px;
  color: var(--paper);
}

.page-contact .co-hero__num {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: .04em;
  color: var(--cyan-signal);
  flex: none;
}

.page-contact .co-hero__fact {
  color: var(--slate-muted);
}

/* ---------- 三张入口卡 ---------- */
.page-contact .co-entries__grid {
  margin-top: 22px;
}

.page-contact .co-entry {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 20px 22px;
  background: var(--ink-panel);
  border: 1px solid var(--ink-line);
  border-radius: var(--co-radius);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-contact .co-entry:hover,
.page-contact .co-entry:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan-signal);
  box-shadow: var(--shadow-panel);
}

.page-contact .co-entry__bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 46%;
  height: var(--co-bar-h);
}

.page-contact .co-entry--channel .co-entry__bar {
  background: var(--cyan-signal);
}

.page-contact .co-entry--buy .co-entry__bar {
  background: var(--amber-mark);
}

.page-contact .co-entry--tech .co-entry__bar {
  background: var(--violet-depth);
}

.page-contact .co-entry h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.4;
  color: var(--paper);
}

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

.page-contact .co-entry__meta {
  margin: 6px 0 0;
  padding: 12px 0 0;
  border-top: 1px dashed var(--ink-line);
}

.page-contact .co-entry__meta div {
  display: flex;
  gap: 10px;
  font-size: 13px;
  line-height: 1.7;
}

.page-contact .co-entry__meta dt {
  flex: none;
  width: 5em;
  font-family: var(--font-mono);
  letter-spacing: .04em;
  color: var(--cyan-mist);
}

.page-contact .co-entry__meta dd {
  margin: 0;
  color: var(--paper);
}

.page-contact .co-entry__sla {
  margin-top: auto;
  padding-top: 12px;
  font-size: 13px;
  color: var(--amber-soft);
  border-top: 1px solid var(--ink-line);
}

.page-contact .co-entry__sla::before {
  content: "◆ ";
  color: var(--amber-mark);
  font-size: 10px;
  vertical-align: 2px;
}

/* ---------- 流程 ---------- */
.page-contact .co-flow__inner {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-contact .co-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--ink-line);
}

.page-contact .co-step {
  position: relative;
  padding: 0 0 26px 24px;
}

.page-contact .co-step:last-child {
  padding-bottom: 0;
}

.page-contact .co-step__no {
  position: absolute;
  left: -1px;
  top: 2px;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--ink-deep);
  border: 1px solid var(--cyan-signal);
  color: var(--cyan-signal);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-contact .co-step__body {
  padding-left: 22px;
}

.page-contact .co-step h3 {
  margin: 4px 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .co-step p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-muted);
}

.page-contact .co-step .co-step__who {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--amber-soft);
}

.page-contact .co-flow__figure {
  margin: 0;
}

/* ---------- 资料清单 ---------- */
.page-contact .co-prep__panel {
  margin-top: 20px;
  padding: 22px 18px;
}

.page-contact .co-checklist {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  column-count: 1;
  column-gap: 36px;
}

.page-contact .co-checklist li {
  break-inside: avoid;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--ink-line);
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .co-checklist input[type="checkbox"] {
  flex: none;
  width: 17px;
  height: 17px;
  margin-top: 4px;
  accent-color: var(--amber-mark);
  cursor: pointer;
}

.page-contact .co-checklist label {
  cursor: pointer;
}

.page-contact .co-prep__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-muted);
}

/* ---------- 采购咨询 ---------- */
.page-contact .co-quote__inner {
  display: grid;
  gap: 22px;
}

.page-contact .co-quote__lead h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 30px);
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .co-quote__lead .lede {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--cyan-mist);
}

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

.page-contact .co-quote__card {
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .co-quote__card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--paper);
}

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

.page-contact .co-quote__card .btn {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 联系方式 ---------- */
.page-contact .co-contact__panel {
  display: grid;
  gap: 0;
  padding: 0;
  overflow: hidden;
}

.page-contact .co-contact__body {
  padding: 26px 20px;
}

.page-contact .co-contact__body h2 {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 5vw, 30px);
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .co-contact__body > p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-muted);
}

.page-contact .co-contact__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink-line);
}

.page-contact .co-contact__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--ink-line);
}

.page-contact .co-contact__key {
  flex: none;
  width: 6em;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--slate-muted);
  padding-top: 3px;
}

.page-contact .co-contact__value {
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--amber-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-contact .co-contact__value:hover,
.page-contact .co-contact__value:focus-visible {
  color: var(--cyan-mist);
  border-bottom-color: var(--cyan-signal);
}

.page-contact .co-contact__value--plain {
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--paper);
  letter-spacing: normal;
}

.page-contact .co-contact__tip {
  font-size: 14px;
  line-height: 1.8;
}

.page-contact .co-contact__tip a {
  color: var(--cyan-signal);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-line);
}

.page-contact .co-contact__tip a:hover,
.page-contact .co-contact__tip a:focus-visible {
  border-bottom-color: var(--cyan-signal);
}

.page-contact .co-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.page-contact .co-contact__figure {
  margin: 0;
}

/* ---------- 常见问题 ---------- */
.page-contact .co-faq__list {
  margin-top: 20px;
  border-top: 1px solid var(--ink-line);
}

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

.page-contact .co-faq__item summary {
  cursor: pointer;
  padding: 16px 34px 16px 2px;
  position: relative;
  font-family: var(--font-display);
  font-size: 16.5px;
  line-height: 1.6;
  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: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan-signal);
}

.page-contact .co-faq__item[open] summary::after {
  content: "–";
  color: var(--amber-mark);
}

.page-contact .co-faq__item p {
  margin: 0;
  padding: 0 20px 18px 2px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-muted);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 720px) {
  .page-contact .co-hero {
    padding-block: 44px 20px;
  }

  .page-contact .co-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .co-hero__facts li {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-contact .co-checklist {
    column-count: 2;
    column-rule: 1px dashed var(--ink-line);
  }

  .page-contact .co-contact__panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-contact .co-contact__body {
    padding: 32px 30px;
  }

  .page-contact .co-contact__figure {
    border-left: 1px solid var(--ink-line);
    height: 100%;
  }

  .page-contact .co-contact__figure .media-frame__caption {
    padding-inline: 18px;
  }
}

@media (min-width: 980px) {
  .page-contact .co-entries__grid {
    margin-top: 28px;
  }

  .page-contact .co-flow__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 40px;
  }

  .page-contact .co-flow__figure {
    position: sticky;
    top: 32px;
  }

  .page-contact .co-quote__inner {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.4fr);
    gap: 36px;
    align-items: start;
  }

  .page-contact .co-quote__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .co-faq__item summary {
    padding-block: 18px;
    font-size: 17.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-entry,
  .page-contact .co-contact__value {
    transition: none;
  }

  .page-contact .co-entry:hover,
  .page-contact .co-entry:focus-within {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>