.page-contact {
  --pc-panel: rgba(11, 22, 32, .92);
  --pc-soft: rgba(10, 30, 43, .55);
  --pc-cyan-line: rgba(53, 227, 196, .35);
  --pc-amber-line: rgba(244, 168, 60, .55);

  background:
    radial-gradient(1000px 520px at 8% -6%, rgba(53, 227, 196, .10), transparent 60%),
    radial-gradient(820px 460px at 96% 8%, rgba(244, 168, 60, .08), transparent 62%),
    var(--abyss-900);
  color: var(--text-body);
  font-family: var(--font-body);
  padding: clamp(88px, 9vw, 124px) 0 clamp(72px, 8vw, 120px);
  overflow-x: clip;
}

.page-contact .section__text {
  min-width: 0;
}

.page-contact .section__num {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(36px, 4.4vw, 62px);
  font-weight: 600;
  line-height: .9;
  letter-spacing: -.02em;
  color: rgba(53, 227, 196, .5);
}

.page-contact .section__kicker {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--cyan-400);
}

.page-contact .section__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--ice-050);
}

.page-contact .section__lead {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.85;
}

/* 面包屑 */
.page-contact .crumbs {
  margin-bottom: clamp(16px, 2vw, 26px);
}

.page-contact .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .06em;
}

.page-contact .crumbs__item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--mist-400);
}

.page-contact .crumbs__item + .crumbs__item::before {
  content: "/";
  color: var(--line-700);
}

.page-contact .crumbs__link {
  color: var(--mist-400);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .crumbs__link:hover,
.page-contact .crumbs__link:focus-visible {
  color: var(--cyan-400);
}

.page-contact .crumbs__current {
  color: var(--ice-050);
}

/* 首屏窄条 */
.page-contact .contact-hero {
  padding: clamp(20px, 2.6vw, 34px) 0 clamp(26px, 3vw, 42px);
  border-bottom: 1px solid var(--line-700);
}

.page-contact .contact-hero__tag {
  display: inline-flex;
  align-items: center;
}

.page-contact .contact-hero__title {
  max-width: 22ch;
  margin: 18px 0 0;
  font-size: clamp(31px, 4.6vw, 56px);
  font-weight: 700;
  line-height: 1.07;
  letter-spacing: -.018em;
  color: var(--ice-050);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.85;
}

/* 章节间距 */
.page-contact .section {
  padding-top: clamp(42px, 4.6vw, 72px);
}

.page-contact .contact-body {
  padding-top: clamp(42px, 4.6vw, 72px);
  display: grid;
  gap: clamp(28px, 3vw, 40px);
}

/* 图片容器 */
.page-contact .media__frame {
  overflow: hidden;
  border: 1px solid var(--line-700);
  border-radius: var(--r-l);
  background: var(--teal-850);
}

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

.page-contact .contact-channels__figure {
  margin: clamp(22px, 2.6vw, 32px) 0 0;
}

/* 渠道条 */
.page-contact .channel-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(18px, 2.2vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-700);
  border: 1px solid var(--line-700);
  border-radius: var(--r-l);
  overflow: hidden;
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.2vw, 28px);
  background: var(--surface-900);
}

.page-contact .channel-card--address {
  background: linear-gradient(180deg, rgba(244, 168, 60, .07), rgba(11, 22, 32, .96));
  outline: 1px solid var(--pc-amber-line);
  outline-offset: -1px;
}

.page-contact .channel-card__label {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--cyan-400);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.25vw, 18px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: .01em;
  color: var(--ice-050);
  word-break: break-word;
}

.page-contact .channel-card__value--addr {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.3vw, 19px);
  letter-spacing: 0;
}

.page-contact .channel-card__fit {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ice-050);
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--mist-400);
}

/* 来信要点清单 */
.page-contact .info-list {
  display: grid;
  gap: 12px;
  margin: clamp(22px, 2.4vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .info-list__item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(16px, 1.8vw, 20px);
  border: 1px solid var(--line-700);
  border-radius: var(--r-m);
  background: var(--pc-soft);
}

.page-contact .info-list__icon {
  width: 22px;
  height: 22px;
  margin-top: 3px;
  fill: none;
  stroke: var(--cyan-400);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .info-list__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice-050);
}

.page-contact .info-list__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
}

/* 右栏 */
.page-contact .contact-side {
  display: grid;
  gap: clamp(20px, 2.4vw, 28px);
  align-content: start;
}

.page-contact .pace-panel {
  padding: clamp(22px, 2.4vw, 30px);
  border: 1px solid var(--line-700);
  border-radius: var(--r-l);
  background: linear-gradient(180deg, rgba(23, 30, 74, .55), rgba(11, 22, 32, .95));
}

.page-contact .pace-panel__title {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.2vw, 27px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.012em;
  color: var(--ice-050);
}

.page-contact .pace-list {
  margin: clamp(20px, 2.2vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pace-list__item {
  position: relative;
  padding: 0 0 20px 26px;
}

.page-contact .pace-list__item:last-child {
  padding-bottom: 0;
}

.page-contact .pace-list__item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: -2px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-400), rgba(53, 227, 196, 0));
}

.page-contact .pace-list__item:last-child::before {
  display: none;
}

.page-contact .pace-list__item::after {
  content: "";
  position: absolute;
  left: 1px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--abyss-900);
  border: 2px solid var(--cyan-400);
}

.page-contact .pace-list__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--amber-400);
}

.page-contact .pace-list__text {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.8;
}

.page-contact .pace-panel__figure {
  margin: clamp(20px, 2.2vw, 26px) 0 0;
}

/* 站点信息 */
.page-contact .site-meta {
  padding: clamp(20px, 2.2vw, 26px);
  border: 1px solid var(--line-700);
  border-radius: var(--r-l);
  background: var(--pc-panel);
}

.page-contact .site-meta__title {
  margin: 10px 0 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--ice-050);
}

.page-contact .site-meta__list {
  margin: 16px 0 0;
}

.page-contact .site-meta__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line-700);
}

.page-contact .site-meta__row:last-child {
  border-bottom: 1px solid var(--line-700);
}

.page-contact .site-meta__row dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist-400);
}

.page-contact .site-meta__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ice-050);
  word-break: break-all;
}

.page-contact .site-meta__text {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.85;
}

.page-contact .site-meta__text a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-cyan-line);
}

.page-contact .site-meta__text a:hover,
.page-contact .site-meta__text a:focus-visible {
  border-bottom-color: var(--cyan-400);
}

/* 来信场景 */
.page-contact .accordion {
  margin-top: clamp(24px, 2.6vw, 34px);
  border: 1px solid var(--line-700);
  border-radius: var(--r-l);
  background: var(--pc-panel);
  overflow: hidden;
}

.page-contact .accordion__item + .accordion__item {
  border-top: 1px solid var(--line-700);
}

.page-contact .accordion__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-contact .accordion__trigger {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: clamp(18px, 2vw, 24px);
  border: 0;
  background: none;
  color: var(--ice-050);
  font-family: var(--font-body);
  font-size: clamp(16px, 1.4vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  text-align: left;
  cursor: pointer;
  transition: background .22s var(--ease);
}

.page-contact .accordion__trigger:hover,
.page-contact .accordion__trigger:focus-visible {
  background: rgba(53, 227, 196, .06);
}

.page-contact .accordion__index {
  flex: none;
  padding: 4px 9px;
  border: 1px solid var(--pc-amber-line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  color: var(--amber-400);
}

.page-contact .accordion__label {
  flex: 1 1 auto;
  min-width: 0;
}

.page-contact .accordion__trigger::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan-400);
}

.page-contact .accordion__trigger[aria-expanded="true"]::after {
  content: "–";
}

.page-contact .accordion__body {
  padding: 0 clamp(18px, 2vw, 24px) clamp(20px, 2.2vw, 26px);
}

.page-contact .accordion__body p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
}

.page-contact .accordion__body p:last-child {
  margin-bottom: 0;
}

.page-contact .accordion__body a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-cyan-line);
}

.page-contact .accordion__body a:hover,
.page-contact .accordion__body a:focus-visible {
  border-bottom-color: var(--cyan-400);
}

/* 平板与桌面 */
@media (min-width: 820px) {
  .page-contact .channel-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .accordion__body {
    padding-left: clamp(64px, 7vw, 88px);
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: start;
  }
}

@media (min-width: 1320px) {
  .page-contact .contact-hero__title {
    max-width: 20ch;
  }

  .page-contact .contact-body {
    gap: 48px;
  }
}