.page-contact {
  --pc-hair: rgba(185, 115, 58, .45);
  --pc-hair-soft: rgba(185, 115, 58, .22);
  --pc-ink-soft: rgba(10, 22, 34, .62);
  position: relative;
  overflow-x: hidden;
  padding-bottom: clamp(56px, 9vw, 110px);
}

/* 面包屑 */
.page-contact .contact-crumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ============ 首屏 ============ */
.page-contact .contact-hero {
  position: relative;
  border-bottom: 1px solid var(--grid-line);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: .5;
  -webkit-mask-image: linear-gradient(160deg, #000 0%, transparent 78%);
  mask-image: linear-gradient(160deg, #000 0%, transparent 78%);
  pointer-events: none;
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  padding-top: clamp(26px, 4vw, 44px);
}

.page-contact .hero-index {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  font-size: 12px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--c-copper-lit);
}

.page-contact .hero-index::after {
  content: "";
  flex: 1;
  max-width: 180px;
  height: 1px;
  background: var(--pc-hair);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 8.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--c-title);
}

.page-contact .hero-lede {
  max-width: 60ch;
  margin: 0 0 26px;
  font-size: clamp(16px, 1.6vw, 18.5px);
  line-height: 1.82;
  color: var(--c-mist);
}

.page-contact .hero-points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-points li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-contact .hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 13px;
  height: 1px;
  background: var(--c-cyan);
}

.page-contact .hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--pc-hair);
  background: var(--c-night);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .38);
}

.page-contact .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(.92) contrast(1.04);
}

.page-contact .hero-figure::before,
.page-contact .hero-figure::after {
  content: "";
  position: absolute;
  width: 15px;
  height: 15px;
  border: 1px solid var(--c-copper);
  pointer-events: none;
}

.page-contact .hero-figure::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .hero-figure::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

/* ============ 章节通用 ============ */
.page-contact .pc-sec {
  position: relative;
  padding: clamp(44px, 6.5vw, 84px) 0;
  border-top: 1px solid var(--grid-line);
}

.page-contact .pc-sec--night {
  background: var(--c-night);
}

.page-contact .pc-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-contact .pc-head__index {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  font-size: 12px;
  letter-spacing: .26em;
  color: var(--c-copper);
}

.page-contact .pc-head__index::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--pc-hair-soft);
}

.page-contact .pc-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 4.4vw, 42px);
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--c-title);
}

.page-contact .pc-head__note {
  max-width: 62ch;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--c-mist);
}

.page-contact .pc-split {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

/* ============ 联络卡片 ============ */
.page-contact .contact-cards {
  --pc-gap: clamp(22px, 3vw, 32px);
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  background: var(--c-paper);
  color: var(--c-ink);
  border: 1px solid rgba(185, 115, 58, .55);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .34);
  transition: border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-contact .contact-card + .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--pc-gap) / -2 - 1px);
  height: 1px;
  background: var(--pc-hair);
  pointer-events: none;
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  border-color: var(--c-copper-lit);
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, .48);
}

.page-contact .contact-card__no {
  position: absolute;
  top: clamp(16px, 2.4vw, 22px);
  right: clamp(16px, 2.4vw, 22px);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--pc-ink-soft);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .contact-card:hover .contact-card__no {
  color: var(--c-copper);
  transform: scale(1.16);
}

.page-contact .contact-card__name {
  margin: 0 0 14px;
  padding-right: 76px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: .01em;
  color: var(--c-ink);
}

.page-contact .contact-card__value {
  margin: 0 0 14px;
  padding-left: 13px;
  border-left: 3px solid var(--c-copper);
  font-family: var(--font-mono);
  font-size: clamp(15.5px, 2vw, 20px);
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--c-ink);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__desc {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(10, 22, 34, .8);
}

.page-contact .contact-card__meta {
  margin: 0;
  padding-top: 11px;
  border-top: 1px dashed rgba(10, 22, 34, .24);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--pc-ink-soft);
}

/* 侧栏说明 */
.page-contact .contact-aside {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--c-steel);
  background: linear-gradient(180deg, rgba(16, 42, 65, .92), rgba(8, 25, 43, .92));
}

.page-contact .contact-aside h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--c-title);
}

.page-contact .contact-aside ul {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-aside li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-contact .contact-aside li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-cyan);
}

.page-contact .contact-aside__foot {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--c-steel);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .contact-aside__foot a {
  color: var(--c-copper-lit);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ 来信写法 ============ */
.page-contact .mail-copy p {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-text);
}

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

.page-contact .mail-side {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
  align-content: start;
}

.page-contact .check-card {
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--c-steel);
  border-left: 3px solid var(--c-copper);
  background: rgba(16, 42, 65, .55);
}

.page-contact .check-card__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--c-copper-lit);
}

.page-contact .check-list {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .check-list li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-contact .check-list b {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

.page-contact .mail-sample {
  margin: 0;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--c-paper);
  color: var(--c-ink);
  border: 1px solid rgba(185, 115, 58, .5);
  border-top: 3px solid var(--c-copper);
}

.page-contact .mail-sample__row {
  display: grid;
  gap: 5px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(10, 22, 34, .22);
}

.page-contact .mail-sample__row:first-child {
  padding-top: 0;
}

.page-contact .mail-sample__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .mail-sample__row dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--pc-ink-soft);
}

.page-contact .mail-sample__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-ink);
}

/* ============ 合作方式 ============ */
.page-contact .coop-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
}

.page-contact .coop-card {
  position: relative;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--c-steel);
  background: rgba(16, 42, 65, .55);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .coop-card:hover {
  border-color: var(--c-copper-lit);
  transform: translateY(-2px);
}

.page-contact .coop-card__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 4px 10px;
  border: 1px solid rgba(255, 122, 61, .55);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-orange);
}

.page-contact .coop-card__tag::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--c-orange);
}

.page-contact .coop-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.3;
  color: var(--c-title);
}

.page-contact .coop-card > p {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-contact .coop-card dl {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--c-steel);
}

.page-contact .coop-card dt {
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-cyan);
}

.page-contact .coop-card dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-text);
}

.page-contact .coop-foot {
  max-width: 760px;
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--c-copper);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ============ 服务时段 ============ */
.page-contact .hours-figure {
  margin: 0;
}

.page-contact .hours-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--c-steel);
}

.page-contact .hours-figure figcaption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--c-copper);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .hours-band {
  display: flex;
  gap: 2px;
  height: 28px;
  margin-bottom: 14px;
}

.page-contact .hours-band__seg {
  display: block;
  background: rgba(36, 69, 95, .62);
}

.page-contact .hours-band__seg:nth-child(1) { flex: 9; }
.page-contact .hours-band__seg:nth-child(2) { flex: 9; }
.page-contact .hours-band__seg:nth-child(3) { flex: 6; }

.page-contact .hours-band__seg--live {
  background: var(--c-cyan);
  box-shadow: 0 0 14px rgba(47, 217, 192, .35);
}

.page-contact .hours-caption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-mist);
}

.page-contact .dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 6px;
  vertical-align: middle;
}

.page-contact .dot--live { background: var(--c-cyan); }
.page-contact .dot--idle { background: rgba(36, 69, 95, .9); }

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

.page-contact .hours-list li {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-top: 1px solid var(--c-steel);
}

.page-contact .hours-list li:last-child {
  border-bottom: 1px solid var(--c-steel);
}

.page-contact .hours-list b {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--c-copper-lit);
}

.page-contact .hours-list span {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-text);
}

/* ============ 自助入口 ============ */
.page-contact .self-grid {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .self-link {
  display: block;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--c-steel);
  border-top: 2px solid var(--c-copper);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              background var(--dur) var(--ease);
}

.page-contact .self-link:hover,
.page-contact .self-link:focus-visible {
  border-color: var(--c-copper-lit);
  background: rgba(16, 42, 65, .6);
  transform: translateY(-2px);
}

.page-contact .self-link__index {
  display: block;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-copper);
}

.page-contact .self-link__title {
  display: block;
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  color: var(--c-title);
}

.page-contact .self-link__desc {
  display: block;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .self-link__go {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-copper-lit);
}

/* ============ 返回顶部 ============ */
.page-contact .contact-top {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 40;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--c-copper);
  background: rgba(8, 25, 43, .88);
  color: var(--c-copper-lit);
  font-family: var(--font-mono);
  font-size: 15px;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-top:hover,
.page-contact .contact-top:focus-visible {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

/* ============ 响应式 ============ */
@media (min-width: 620px) {
  .page-contact .mail-side {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-contact .self-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .self-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .hours-list li {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
  .page-contact .pc-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-contact .pc-split--flip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-contact .mail-side {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero__grid {
    padding-top: clamp(34px, 4vw, 54px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-card__no,
  .page-contact .coop-card,
  .page-contact .self-link,
  .page-contact .contact-top {
    transition: none;
  }
  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-within,
  .page-contact .coop-card:hover,
  .page-contact .self-link:hover,
  .page-contact .self-link:focus-visible {
    transform: none;
  }
  .page-contact .contact-card:hover .contact-card__no {
    transform: none;
  }
}