.page-contact {
  --pc-radius: 3px;
  --pc-card-bg: var(--ink-2);
  padding-bottom: 56px;
}

.page-contact .breadcrumb {
  padding-top: 18px;
}

.page-contact .breadcrumb__list {
  font-size: 12.5px;
  letter-spacing: .04em;
}

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

.page-contact a:hover {
  color: var(--cyan-soft);
}

/* 首屏 */
.page-contact .contact-hero {
  padding: 16px 0 6px;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-hero__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .contact-hero__title {
  margin: 0 0 18px;
  font-size: clamp(36px, 10vw, 74px);
  line-height: 1.04;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-contact .contact-hero__note {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-contact .contact-hero__lead-text {
  margin: 0 0 16px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .9;
}

.page-contact .contact-hero__quick {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--cyan);
  word-break: break-word;
}

/* 图片容器 */
.page-contact .media {
  margin: 0;
}

.page-contact .media__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
  background:
    linear-gradient(180deg, rgba(53, 240, 200, .06), rgba(11, 31, 26, 0)),
    repeating-linear-gradient(0deg, var(--line-soft) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 26px),
    var(--ink-2);
}

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

.page-contact .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--stone);
}

/* 主体两栏 */
.page-contact .contact-body {
  padding-top: 34px;
}

.page-contact .contact-body__grid {
  display: grid;
  gap: 30px;
}

.page-contact .contact-rail {
  display: grid;
  gap: 14px;
}

.page-contact .contact-rail__title {
  margin: 0;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--stone);
}

/* 联系卡 */
.page-contact .contact-card {
  position: relative;
  padding: 18px 18px 20px;
  background: var(--pc-card-bg);
  border: 1px solid var(--line);
  border-top: 1px solid var(--cyan);
  border-radius: var(--pc-radius);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .03);
}

.page-contact .contact-card__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-contact .contact-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 600;
  color: var(--cream);
}

.page-contact .contact-card__value {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--cyan-soft);
  word-break: break-all;
}

.page-contact .contact-card__desc {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--stone);
}

.page-contact .contact-card__map {
  position: relative;
  height: 84px;
  margin: 0 0 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--pc-radius);
  background-image:
    repeating-linear-gradient(0deg, var(--line-soft) 0 1px, transparent 1px 18px),
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 18px);
}

.page-contact .contact-card__map::after {
  content: "";
  position: absolute;
  left: 38%;
  top: 44%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 240, 200, .16);
}

.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--cyan-line);
  border-radius: var(--pc-radius);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .copy-btn:hover {
  background: rgba(53, 240, 200, .12);
  color: var(--cyan-soft);
}

.page-contact .copy-btn.is-copied {
  color: var(--amber);
  border-color: rgba(245, 165, 36, .5);
}

/* 右侧推进段 */
.page-contact .contact-stream {
  display: grid;
  gap: 40px;
}

.page-contact .contact-block__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-block__index {
  margin: 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--amber);
}

.page-contact .contact-block__title {
  margin: 0;
  font-size: clamp(21px, 5.4vw, 28px);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-contact .contact-block__lead {
  margin: 0 0 18px;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--cream);
  opacity: .86;
}

/* 反馈清单 */
.page-contact .checklist {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
  align-items: start;
  padding: 13px 14px;
  background: var(--ink-3);
  border: 1px solid var(--line-soft);
  border-radius: var(--pc-radius);
}

.page-contact .checklist__box {
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 3px;
  border: 1px solid var(--cyan-line);
  border-radius: 2px;
  background: rgba(53, 240, 200, .1);
}

.page-contact .checklist__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(40deg);
}

.page-contact .checklist__name {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--cream);
}

.page-contact .checklist__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--stone);
}

.page-contact .checklist__desc a {
  border-bottom: 1px solid var(--cyan-line);
}

/* 来信要点 */
.page-contact .contact-note {
  padding: 2px 0 2px 16px;
  border-left: 2px solid var(--amber);
}

.page-contact .contact-note__title {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--amber);
}

.page-contact .contact-note__list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 6px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--cream);
  opacity: .88;
}

/* 共建方向 */
.page-contact .coop-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 22px;
}

.page-contact .coop-card {
  padding: 16px 16px 18px;
  background: var(--pc-card-bg);
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
}

.page-contact .coop-card .tag {
  margin-bottom: 10px;
}

.page-contact .coop-card__title {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--cream);
}

.page-contact .coop-card__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--stone);
}

.page-contact .coop-figure {
  margin: 0;
}

/* 回复节奏 */
.page-contact .reply-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--line);
}

.page-contact .reply-item {
  position: relative;
  padding: 0 0 20px 4px;
}

.page-contact .reply-item::before {
  content: "";
  position: absolute;
  left: -24.5px;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--cyan);
}

.page-contact .reply-item:last-child {
  padding-bottom: 0;
}

.page-contact .reply-item__when {
  display: block;
  margin-bottom: 5px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-contact .reply-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--cream);
  opacity: .88;
}

/* 运营与备案 */
.page-contact .info-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.page-contact .info-card {
  padding: 16px;
  background: var(--pc-card-bg);
  border: 1px solid var(--line);
  border-radius: var(--pc-radius);
}

.page-contact .info-card__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--stone);
}

.page-contact .info-card__value {
  margin: 0;
  font-size: 16px;
  color: var(--cyan-soft);
  word-break: break-all;
}

.page-contact .contact-links__title {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--stone);
}

.page-contact .link-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .link-list a {
  font-size: 14.5px;
  line-height: 1.6;
}

/* 桌面 */
@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 44px;
    align-items: end;
  }

  .page-contact .contact-hero__lead {
    position: relative;
    padding-left: 36px;
  }

  .page-contact .contact-hero__note {
    position: absolute;
    left: 0;
    top: 62px;
    margin: 0;
    writing-mode: vertical-rl;
    letter-spacing: .24em;
  }

  .page-contact .contact-block__lead {
    font-size: 16px;
  }
}

@media (min-width: 1024px) {
  .page-contact {
    padding-bottom: 84px;
  }

  .page-contact .contact-body__grid {
    grid-template-columns: minmax(290px, 336px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 96px;
  }

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

  .page-contact .info-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .link-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 24px;
  }
}

@media (min-width: 1280px) {
  .page-contact .contact-stream {
    gap: 48px;
  }
}