.page-contact {
  display: block;
}

/* ============ 首屏 ============ */
.page-contact .co-hero {
  position: relative;
  padding: clamp(40px, 7vw, 88px) 0 clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 72px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  opacity: .8;
}

.page-contact .co-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(52vw, 640px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--pink));
  opacity: .75;
}

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

.page-contact .co-hero__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 5.2vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--star);
  margin: 14px 0 20px;
  max-width: 20ch;
}

.page-contact .co-hero__lede {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.78;
  color: var(--slate);
  max-width: 64ch;
  margin: 0 0 26px;
}

.page-contact .co-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ============ 导览条 ============ */
.page-contact .co-jump {
  border-bottom: 1px solid var(--line);
  background: rgba(14, 26, 60, .42);
}

.page-contact .co-jump__wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  flex-wrap: wrap;
}

.page-contact .co-jump__label {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--pink);
  text-transform: uppercase;
}

.page-contact .co-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.page-contact .co-jump__link {
  display: inline-block;
  padding: 6px 0;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* ============ 01 合作方式 ============ */
.page-contact .co-ways {
  align-items: start;
}

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

.page-contact .co-tabs__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-contact .co-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  background: rgba(14, 26, 60, .55);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--slate);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  cursor: pointer;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .co-tab:hover {
  color: var(--star);
  border-color: var(--line-strong);
}

.page-contact .co-tab[aria-selected="true"] {
  color: var(--star);
  background: linear-gradient(155deg, rgba(91, 63, 168, .68), rgba(91, 63, 168, .18));
  border-color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(53, 224, 208, .35), 0 0 0 1px rgba(53, 224, 208, .12);
}

.page-contact .co-tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .co-tab__num {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--pink);
}

.page-contact .co-tab[aria-selected="true"] .co-tab__num {
  color: var(--cyan);
}

.page-contact .co-panel {
  padding: 0;
}

.page-contact .co-panel[hidden] {
  display: none;
}

.page-contact .co-panel__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.35;
  color: var(--star);
  margin: 0 0 20px;
  padding-left: 16px;
  border-left: 3px solid var(--purple);
}

.page-contact .co-spec {
  margin: 0 0 18px;
  border-top: 1px solid var(--line);
}

.page-contact .co-spec__row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 4px 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .co-spec__key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  padding-top: 3px;
}

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

.page-contact .co-panel__note {
  margin: 0;
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
  background: rgba(91, 63, 168, .16);
  border-left: 2px solid var(--pink);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

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

.page-contact .co-ways__figure {
  margin: 0 0 16px;
}

.page-contact .co-ways__hint {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
  padding: 14px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-sm);
}

.page-contact .co-ways__link {
  display: inline-block;
}

/* ============ 02 条件与支持 ============ */
.page-contact .co-terms {
  align-items: start;
}

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

.page-contact .co-terms__sub {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .16em;
  color: var(--pink);
  text-transform: uppercase;
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-contact .co-terms__list {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .co-terms__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(14, 26, 60, .5);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  transition: border-color .24s var(--ease), transform .24s var(--ease);
}

.page-contact .co-terms__item:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-contact .co-terms__item--support {
  background: rgba(91, 63, 168, .14);
  border-left: 2px solid var(--cyan);
}

.page-contact .co-terms__idx {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .co-terms__body h4 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--star);
  margin: 0 0 8px;
}

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

/* ============ 03 推进流程 ============ */
.page-contact .co-flow__media {
  margin: 0 0 36px;
}

.page-contact .co-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .co-flow__step {
  position: relative;
  padding-top: 26px;
  min-width: 0;
}

.page-contact .co-flow__step::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-strong);
}

.page-contact .co-flow__step::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 12px rgba(53, 224, 208, .45);
}

.page-contact .co-flow__idx {
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--pink);
  margin-bottom: 8px;
}

.page-contact .co-flow__card {
  background: rgba(14, 26, 60, .58);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  overflow: hidden;
  transition: border-color .24s var(--ease);
}

.page-contact .co-flow__card:hover,
.page-contact .co-flow__card[open] {
  border-color: rgba(53, 224, 208, .42);
}

.page-contact .co-flow__summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .co-flow__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .co-flow__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--star);
}

.page-contact .co-flow__dur {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-contact .co-flow__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-contact .co-flow__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

/* ============ 04 供货与售后 ============ */
.page-contact .co-supply {
  align-items: start;
}

.page-contact .co-supply__main,
.page-contact .co-supply__aside {
  min-width: 0;
}

.page-contact .co-supply__strip {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .co-supply__cell {
  padding: 18px 16px;
  background: rgba(14, 26, 60, .72);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .co-supply__cell:nth-child(2) {
  background: rgba(91, 63, 168, .22);
}

.page-contact .co-supply__cell:nth-child(3) {
  background: rgba(91, 63, 168, .22);
}

.page-contact .co-supply__num {
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: .01em;
  color: var(--star);
  font-weight: 500;
}

.page-contact .co-supply__cap {
  font-size: 13px;
  line-height: 1.5;
  color: var(--slate);
}

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

.page-contact .co-supply__note {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--purple);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(7, 11, 26, .5);
}

.page-contact .co-supply__note h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--star);
  margin: 0 0 8px;
}

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

.page-contact .co-supply__cta {
  display: inline-block;
  margin-top: 14px;
}

.page-contact .co-supply__card {
  padding: 20px;
  margin-bottom: 16px;
}

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

.page-contact .co-supply__link {
  display: block;
  padding: 10px 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--star);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .2s var(--ease), border-color .2s var(--ease), padding-left .2s var(--ease);
}

.page-contact .co-supply__link:hover,
.page-contact .co-supply__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  padding-left: 6px;
}

.page-contact .co-supply__aside-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

/* ============ 05 联系通道（纸层） ============ */
.page-contact .co-reach {
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-contact .co-reach__card {
  padding: clamp(26px, 4vw, 52px);
}

.page-contact .co-reach__head {
  max-width: 62ch;
  margin-bottom: 28px;
}

.page-contact .co-reach__eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--purple);
  margin-bottom: 12px;
}

.page-contact .co-reach__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 14px;
}

.page-contact .co-reach__lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(20, 22, 43, .78);
}

.page-contact .co-reach__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  border-top: 1px solid rgba(20, 22, 43, .18);
}

.page-contact .co-reach__row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(20, 22, 43, .18);
}

.page-contact .co-reach__key {
  flex: 0 0 92px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  color: var(--purple);
}

.page-contact .co-reach__val {
  flex: 1 1 240px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .co-reach__val.mono {
  letter-spacing: .01em;
}

.page-contact .co-reach__badge {
  display: inline-block;
  padding: 5px 10px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--paper);
  background: var(--purple);
  border-radius: var(--r-sm);
  transform: rotate(-1.4deg);
  box-shadow: 0 2px 0 rgba(20, 22, 43, .28);
}

.page-contact .co-reach__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(20, 22, 43, .72);
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-contact .co-supply__strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .co-flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 18px;
  }
}

@media (min-width: 900px) {
  .page-contact .co-flow__steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0 14px;
  }

  .page-contact .co-flow__card {
    min-height: 100%;
  }
}

@media (max-width: 899px) {
  .page-contact .co-ways__aside {
    margin-top: 32px;
  }

  .page-contact .co-terms__col + .co-terms__col {
    margin-top: 24px;
  }

  .page-contact .co-supply__aside {
    margin-top: 32px;
  }
}

@media (max-width: 599px) {
  .page-contact .co-spec__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-contact .co-spec__key {
    padding-top: 0;
  }

  .page-contact .co-reach__key {
    flex: 1 1 100%;
  }

  .page-contact .co-reach__row {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-tab,
  .page-contact .co-terms__item,
  .page-contact .co-flow__card,
  .page-contact .co-supply__link,
  .page-contact .co-jump__link {
    transition: none;
  }
}
<<<END>>>