.page-contact {
  --co-pad: clamp(24px, 4.5vw, 56px);
  --co-gap: clamp(16px, 2.4vw, 24px);
  background: var(--ink-900);
  color: var(--text);
}

.page-contact .co-hero {
  display: grid;
  gap: var(--co-gap);
  padding-block: clamp(20px, 4vw, 40px) var(--co-pad);
  border-bottom: 1px solid var(--grid-line);
}

.page-contact .co-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.4vw, 56px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.page-contact .co-hero__lede {
  margin-top: 16px;
  max-width: 52ch;
  color: var(--text-dim);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
}

.page-contact .co-hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-contact .co-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--rule);
}

.page-contact .co-metric__num {
  font-family: var(--font-num);
  font-size: clamp(22px, 3.6vw, 38px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-contact .co-metric:first-child .co-metric__num {
  color: var(--score);
}

.page-contact .co-metric__label {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}

.page-contact .co-hero__media {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--grid-line);
  background: var(--ink-950);
}

.page-contact .co-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .section {
  padding-block: var(--co-pad);
  border-bottom: 1px solid var(--grid-line);
}

.page-contact .section-note {
  max-width: 62ch;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.75;
}

/* 合作类型：左索引 + 右展开 */
.page-contact .co-types__body {
  display: grid;
  gap: var(--co-gap);
  margin-top: 20px;
}

.page-contact .co-types__index {
  padding: 16px;
  border: 1px solid var(--grid-line);
  background: var(--ink-850);
}

.page-contact .co-types__index-label {
  margin: 0;
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--lake-soft);
}

.page-contact .co-index {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .co-index li {
  flex: 0 0 auto;
}

.page-contact .co-index a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 0;
  border-bottom: 1px solid var(--grid-line);
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .co-index a:hover,
.page-contact .co-index a:focus-visible {
  color: var(--text);
  border-color: var(--lake);
  outline: none;
}

.page-contact .co-index__no {
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--lake);
}

.page-contact .co-index__dot {
  flex: none;
  width: 6px;
  height: 6px;
  margin-left: auto;
  background: var(--grid-line);
  transition: background var(--dur) var(--ease);
}

.page-contact .co-index a:hover .co-index__dot,
.page-contact .co-index a:focus-visible .co-index__dot {
  background: var(--lake);
}

.page-contact .co-types__index-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--grid-line);
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.65;
}

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

.page-contact .co-type {
  border: 1px solid var(--grid-line);
  background: var(--ink-850);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

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

.page-contact .co-type__trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px;
  border: 0;
  background: none;
  color: var(--text);
  font-family: var(--font-body);
  text-align: left;
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}

.page-contact .co-type__trigger:hover,
.page-contact .co-type__trigger:focus-visible {
  background: var(--ink-800);
  outline: none;
}

.page-contact .co-type__trigger:focus-visible {
  box-shadow: inset 0 0 0 1px var(--lake);
}

.page-contact .co-type__no {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--lake);
}

.page-contact .co-type__name {
  font-family: var(--font-head);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-contact .co-type__for {
  display: none;
  margin-left: auto;
  font-size: 12px;
  color: var(--text-dim);
}

.page-contact .co-type__inner {
  padding: 0 16px 18px 40px;
}

.page-contact .co-type__facts {
  display: grid;
  gap: 10px;
  margin: 0;
}

.page-contact .co-type__facts dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lake-soft);
}

.page-contact .co-type__facts dd {
  margin: 0 0 6px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.78;
}

/* 适合的合作方 */
.page-contact .co-fit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--co-gap);
  margin-top: 20px;
}

.page-contact .co-fit__card {
  padding: 18px;
}

.page-contact .co-fit__title {
  margin: 12px 0 8px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.35;
}

.page-contact .co-fit__text {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.75;
}

.page-contact .co-fit__path {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--grid-line);
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--lake);
}

/* 流程时间线 */
.page-contact .co-flow {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 24px 0 0;
  padding: 0;
}

.page-contact .co-step {
  position: relative;
  padding-top: 26px;
  border-top: 1px solid var(--grid-line);
}

.page-contact .co-step::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--lake);
}

.page-contact .co-step__no {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--lake-soft);
}

.page-contact .co-step__title {
  margin: 6px 0 8px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
}

.page-contact .co-step__text {
  margin: 0 0 12px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.75;
}

.page-contact .co-step__prep {
  margin: 0 0 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-contact .co-step__prep span {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 6px;
  border: 1px solid var(--rule);
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--lake-soft);
}

.page-contact .co-flow-media {
  margin: 28px 0 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--grid-line);
  background: var(--ink-950);
}

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

/* 联系区 */
.page-contact .co-contact__body {
  display: grid;
  gap: var(--co-gap);
  margin-top: 20px;
}

.page-contact .co-card--main {
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--rule);
  background: var(--ink-850);
}

.page-contact .co-card__label {
  margin: 0;
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--lake-soft);
}

.page-contact .co-mail {
  display: inline-block;
  margin-top: 10px;
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  font-family: var(--font-num);
  font-size: clamp(17px, 3vw, 26px);
  color: var(--yellow);
  text-decoration: none;
  word-break: break-all;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .co-mail:hover,
.page-contact .co-mail:focus-visible {
  border-color: var(--yellow);
  outline: none;
}

.page-contact .co-contact__row {
  display: grid;
  gap: 3px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--grid-line);
}

.page-contact .co-contact__key {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-contact .co-contact__val {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--text);
}

.page-contact .co-contact__val--num {
  font-family: var(--font-num);
  letter-spacing: 0.02em;
}

.page-contact .co-card__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--grid-line);
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.7;
}

.page-contact .co-prep {
  border: 1px solid var(--grid-line);
  background: var(--ink-850);
  padding: clamp(16px, 2.6vw, 22px);
}

.page-contact .co-prep__label {
  margin: 0;
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--lake-soft);
}

.page-contact .co-prep__acc {
  margin-top: 12px;
}

.page-contact .co-prep__item {
  border-top: 1px solid var(--grid-line);
}

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

.page-contact .co-prep__trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 13px 0;
  border: 0;
  background: none;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.page-contact .co-prep__trigger:hover,
.page-contact .co-prep__trigger:focus-visible {
  color: var(--lake-soft);
  outline: none;
}

.page-contact .co-prep__no {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: 1px solid var(--rule);
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--lake);
}

.page-contact .co-prep__name {
  flex: 1;
}

.page-contact .co-prep__inner {
  padding: 0 0 14px 30px;
}

.page-contact .co-prep__inner p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.75;
}

/* 响应时段 */
.page-contact .co-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 20px;
}

.page-contact .co-reach__item {
  padding-left: 14px;
  border-left: 2px solid var(--lake);
}

.page-contact .co-reach__title {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}

.page-contact .co-reach__text {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.75;
}

/* 相关入口 */
.page-contact .co-more {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  padding-block: clamp(20px, 3.2vw, 32px);
}

.page-contact .co-more a {
  padding-bottom: 3px;
  border-bottom: 1px solid var(--rule);
  color: var(--lake-soft);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .co-more a:hover,
.page-contact .co-more a:focus-visible {
  color: var(--text);
  border-color: var(--lake);
  outline: none;
}

@media (min-width: 600px) {
  .page-contact .co-fit__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .co-type__for {
    display: block;
  }
}

@media (min-width: 760px) {
  .page-contact .co-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .co-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .co-types__body {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .co-types__index {
    position: sticky;
    top: calc(var(--header-h) + 16px);
  }

  .page-contact .co-index {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-contact .co-index a {
    white-space: normal;
    padding: 11px 0;
  }

  .page-contact .co-type__facts {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 10px 18px;
  }

  .page-contact .co-type__facts dt {
    padding-top: 3px;
  }

  .page-contact .co-type__facts dd {
    margin-bottom: 0;
  }

  .page-contact .co-contact__body {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1060px) {
  .page-contact .co-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .co-fit__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}