.page-contact .co-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(26px, 5vw, 48px) clamp(72px, 10vw, 120px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 44px), 0 100%);
}

.page-contact .co-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .co-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.42;
  display: block;
}

.page-contact .co-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 13, 16, 0.55) 0%, rgba(14, 13, 16, 0.82) 58%, rgba(14, 13, 16, 0.96) 100%);
}

.page-contact .co-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .co-hero__inner .lede {
  margin-top: 14px;
  max-width: 62ch;
}

.page-contact .co-channels {
  margin-top: clamp(30px, 5vw, 52px);
  gap: clamp(16px, 2.4vw, 24px);
}

.page-contact .co-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3vw, 30px);
  position: relative;
}

.page-contact .co-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(20px, 3vw, 30px);
  width: 46px;
  height: 4px;
  background: var(--red);
}

.page-contact .co-card__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate-dark);
}

.page-contact .co-card .title-md {
  margin: 0;
  color: var(--on-dark);
}

.page-contact .co-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.1vw, 19px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.5;
  word-break: break-word;
}

.page-contact .co-card__value a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(35, 216, 206, 0.35);
  padding-bottom: 2px;
}

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

.page-contact .co-card__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--on-dark-dim);
}

.page-contact .co-hours {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-cond);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--on-dark);
}

.page-contact .co-dot {
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 106, 43, 0.18);
}

.page-contact .co-address {
  margin: clamp(24px, 4vw, 36px) 0 0;
  color: var(--on-dark-dim);
  border-left: 3px solid var(--red);
  padding-left: 12px;
}

/* 准备清单 */
.page-contact .co-prep__list {
  list-style: none;
  margin: clamp(30px, 5vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--mist);
  border: 3px solid var(--ink);
}

.page-contact .co-prep__item {
  display: grid;
  grid-template-columns: 26px 1fr;
  grid-template-areas:
    "box no"
    "box body";
  gap: 4px 14px;
  align-items: start;
  background: var(--cream);
  padding: clamp(18px, 2.6vw, 26px);
}

.page-contact .co-prep__box {
  grid-area: box;
  width: 22px;
  height: 22px;
  border: 2px solid var(--ink);
  margin-top: 3px;
}

.page-contact .co-prep__no {
  grid-area: no;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--red);
}

.page-contact .co-prep__body {
  grid-area: body;
}

.page-contact .co-prep__name {
  margin: 0 0 6px;
  font-family: var(--font-cond);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

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

.page-contact .co-prep__body a,
.page-contact .co-prep__tail a {
  color: var(--red);
  text-decoration: none;
  border-bottom: 2px solid rgba(196, 22, 28, 0.32);
}

.page-contact .co-prep__body a:hover,
.page-contact .co-prep__tail a:hover {
  border-bottom-color: var(--red);
}

.page-contact .co-prep__tail {
  margin: clamp(22px, 3vw, 32px) 0 0;
}

/* 数据问题 */
.page-contact .co-data__grid {
  margin-top: clamp(28px, 4.5vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .co-data__copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--on-dark-dim);
}

.page-contact .co-data__copy p:first-child {
  color: var(--on-dark);
}

.page-contact .co-table-wrap {
  border: 3px solid var(--red);
  background: var(--graphite);
}

.page-contact .co-table {
  min-width: 620px;
  width: 100%;
}

.page-contact .co-table caption {
  text-align: left;
  padding: 12px 14px;
  color: var(--cyan);
  border-bottom: 1px solid var(--hairline);
}

/* 合作 */
.page-contact .co-coop__list {
  margin-top: clamp(30px, 5vw, 48px);
  border-top: 3px solid var(--ink);
}

.page-contact .co-coop__item {
  border-bottom: 2px solid var(--ink);
  background: var(--cream);
}

.page-contact .co-coop__item summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto 18px;
  align-items: center;
  gap: 14px;
  padding: clamp(18px, 2.6vw, 26px) clamp(14px, 2vw, 22px);
}

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

.page-contact .co-coop__item summary::after {
  content: "";
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 0.24s var(--ease);
}

.page-contact .co-coop__item[open] summary::after {
  transform: rotate(-135deg) translate(-3px, -3px);
}

.page-contact .co-coop__item summary:hover {
  background: rgba(196, 22, 28, 0.05);
}

.page-contact .co-coop__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--red);
}

.page-contact .co-coop__name {
  font-family: var(--font-cond);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .co-coop__hint {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
  white-space: nowrap;
}

.page-contact .co-coop__body {
  padding: 0 clamp(14px, 2vw, 22px) clamp(22px, 3vw, 30px);
  border-left: 3px solid var(--red);
  margin-left: clamp(14px, 2vw, 22px);
}

.page-contact .co-coop__body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-dim);
  max-width: 68ch;
}

.page-contact .co-coop__body a {
  color: var(--red);
  text-decoration: none;
  border-bottom: 2px solid rgba(196, 22, 28, 0.32);
}

.page-contact .co-coop__body ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-contact .co-coop__body li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--body-color);
  padding-left: 20px;
  position: relative;
}

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

/* 回应流程 */
.page-contact .co-respond__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.5vw, 56px);
  align-items: start;
}

.page-contact .co-respond__copy .lede {
  margin-top: 14px;
}

.page-contact .co-step {
  padding: 22px 0;
  border-top: 2px solid var(--hairline);
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.page-contact .co-steps {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  border-bottom: 2px solid var(--hairline);
}

.page-contact .co-step__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .co-step h3 {
  margin: 0;
  font-family: var(--font-cond);
  font-size: clamp(20px, 2.4vw, 25px);
  font-weight: 700;
  color: var(--on-dark);
}

.page-contact .co-step p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-dark-dim);
  max-width: 62ch;
}

.page-contact .co-step a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(35, 216, 206, 0.35);
}

.page-contact .co-respond__media {
  padding: 0;
  overflow: hidden;
  box-shadow: var(--hard-red);
}

.page-contact .co-respond__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* 收尾承诺 */
.page-contact .co-promise__inner {
  text-align: center;
}

.page-contact .co-skyline {
  display: block;
  width: 100%;
  height: clamp(64px, 9vw, 110px);
  margin-bottom: clamp(22px, 3.5vw, 36px);
}

.page-contact .co-skyline path {
  fill: none;
  stroke: var(--red);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  opacity: 0.55;
}

.page-contact .co-promise__inner .lede {
  margin: 16px auto 0;
  max-width: 56ch;
}

.page-contact .co-promise__links {
  margin-top: clamp(26px, 4vw, 38px);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

@media (min-width: 700px) {
  .page-contact .co-prep__list {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .co-coop__body ul {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .page-contact .co-prep__item {
    grid-template-columns: 26px 1fr;
    grid-template-areas:
      "box no"
      "box body";
  }

  .page-contact .co-data__grid {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
  }

  .page-contact .co-respond__grid {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .page-contact .co-respond__media {
    position: sticky;
    top: 28px;
  }
}

@media (max-width: 620px) {
  .page-contact .co-hero {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), 0 100%);
    padding-block: 24px 56px;
  }

  .page-contact .co-coop__item summary {
    grid-template-columns: auto 1fr 16px;
    grid-template-areas:
      "no name mark"
      "hint hint hint";
    gap: 6px 12px;
  }

  .page-contact .co-coop__no {
    grid-area: no;
  }

  .page-contact .co-coop__name {
    grid-area: name;
  }

  .page-contact .co-coop__hint {
    grid-area: hint;
  }

  .page-contact .co-coop__item summary::after {
    grid-area: mark;
  }
}