.page-contact {
  --pc-cut: 26px;
  background: var(--deep-sea);
  color: var(--mist-white);
  font-family: var(--font-body);
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 84px);
}

.page-contact .breadcrumb {
  padding-top: clamp(14px, 2.6vw, 26px);
}

.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 60px) clamp(30px, 5vw, 64px);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -100px;
  width: min(560px, 90vw);
  height: min(560px, 90vw);
  background: radial-gradient(circle, rgba(22, 224, 210, 0.15), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: start;
}

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

.page-contact h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 5.6vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-contact .contact-hero__lead {
  margin-top: clamp(16px, 2.6vw, 24px);
}

.page-contact .mail-focus {
  margin-top: clamp(24px, 4vw, 36px);
  padding: clamp(20px, 3.2vw, 30px) clamp(18px, 3.2vw, 32px);
  border: 1px solid rgba(255, 107, 74, 0.42);
  border-left: 3px solid var(--coral);
  background: linear-gradient(135deg, rgba(18, 51, 90, 0.92), rgba(6, 18, 36, 0.6));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-contact .mail-focus__label {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gray-blue);
}

.page-contact .mail-focus__addr {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 3.6vw, 28px);
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--fluoro-cyan);
  overflow-wrap: anywhere;
}

.page-contact .mail-focus__hint {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-blue);
}

.page-contact .contact-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: clamp(22px, 3.4vw, 32px);
}

.page-contact .contact-jump a {
  display: inline-block;
  padding: 7px 14px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--aqua-glow);
  border: 1px solid var(--line-mid);
  border-radius: 999px;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-contact .contact-jump a:hover,
.page-contact .contact-jump a:focus-visible {
  background: rgba(22, 224, 210, 0.12);
  border-color: var(--line-strong);
  color: var(--mist-white);
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-soft);
  overflow: hidden;
}

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

.page-contact .pc-head {
  margin-bottom: clamp(22px, 3.6vw, 38px);
}

.page-contact .pc-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.8vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 8px 0 0;
  max-width: 24ch;
}

.page-contact .pc-head p {
  margin: 12px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray-blue);
}

.page-contact .contact-channels,
.page-contact .contact-letter,
.page-contact .contact-facts,
.page-contact .contact-routing,
.page-contact .contact-hours {
  padding-block: clamp(34px, 6vw, 78px);
  border-top: 1px solid var(--line-soft);
}

/* 渠道卡 */
.page-contact .channel-grid {
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
}

.page-contact .channel-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(158deg, rgba(18, 51, 90, 0.9), rgba(6, 18, 36, 0.74));
  border: 1px solid rgba(255, 107, 74, 0.4);
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, 0 100%);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: var(--pc-cut);
  height: var(--pc-cut);
  background: linear-gradient(to bottom right, transparent 45%, rgba(255, 107, 74, 0.7) 46%, rgba(255, 107, 74, 0.7) 54%, transparent 55%);
  pointer-events: none;
}

.page-contact .channel-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 74, 0.75);
}

.page-contact .channel-card--phone {
  border-color: rgba(127, 243, 234, 0.32);
}

.page-contact .channel-card--phone::after {
  background: linear-gradient(to bottom right, transparent 45%, rgba(127, 243, 234, 0.62) 46%, rgba(127, 243, 234, 0.62) 54%, transparent 55%);
}

.page-contact .channel-card--phone:hover {
  border-color: rgba(127, 243, 234, 0.62);
}

.page-contact .channel-card__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--signal-gold);
}

.page-contact .channel-card__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 24px);
  letter-spacing: -0.01em;
  margin: 8px 0 0;
}

.page-contact .channel-card__body {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-white);
}

.page-contact .channel-card__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .channel-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--gray-blue);
}

.page-contact .channel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--aqua-glow);
}

.page-contact .channel-card__value {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.3vw, 20px);
  letter-spacing: 0.01em;
  color: var(--fluoro-cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--phone .channel-card__value {
  color: var(--signal-gold);
}

/* 写信要点 */
.page-contact .letter-grid {
  display: grid;
  gap: clamp(26px, 4.5vw, 48px);
  align-items: start;
}

.page-contact .letter-pad {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line-mid);
  background-image:
    repeating-linear-gradient(180deg, transparent 0, transparent 41px, rgba(234, 244, 247, 0.075) 41px, rgba(234, 244, 247, 0.075) 42px),
    linear-gradient(160deg, rgba(6, 18, 36, 0.78), rgba(18, 51, 90, 0.42));
  background-repeat: repeat, no-repeat;
}

.page-contact .letter-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .letter-item {
  position: relative;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 2px;
  cursor: pointer;
}

.page-contact .letter-item + .letter-item {
  border-top: 1px solid var(--line-soft);
}

.page-contact .letter-item__check {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-contact .letter-item__box {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.page-contact .letter-item__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--abyss);
  border-bottom: 2px solid var(--abyss);
  transform: rotate(42deg) scale(0);
  transition: transform 0.16s ease;
}

.page-contact .letter-item__check:checked + .letter-item__box {
  background: var(--fluoro-cyan);
  border-color: var(--fluoro-cyan);
}

.page-contact .letter-item__check:checked + .letter-item__box::after {
  transform: rotate(42deg) scale(1);
}

.page-contact .letter-item__check:focus-visible + .letter-item__box {
  box-shadow: var(--focus-ring);
}

.page-contact .letter-item__text {
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist-white);
}

.page-contact .letter-item__text strong {
  color: var(--fluoro-cyan);
  font-weight: 700;
}

.page-contact .letter-tip {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray-blue);
}

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

.page-contact .letter-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-soft);
}

.page-contact .letter-figure__cap {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray-blue);
}

/* 联系信息一览 */
.page-contact .info-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .info-row {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .info-row__key {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gray-blue);
}

.page-contact .info-row__val {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--mist-white);
  overflow-wrap: anywhere;
}

.page-contact .info-row__val.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.page-contact .contact-facts__note {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-blue);
}

.page-contact .contact-facts__note a,
.page-contact .route-item a,
.page-contact .hours-note a {
  color: var(--fluoro-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 210, 0.4);
}

.page-contact .contact-facts__note a:hover,
.page-contact .route-item a:hover,
.page-contact .hours-note a:hover,
.page-contact .contact-facts__note a:focus-visible,
.page-contact .route-item a:focus-visible,
.page-contact .hours-note a:focus-visible {
  color: var(--mint-fog);
  border-bottom-color: var(--mint-fog);
}

/* 反馈分流 */
.page-contact .route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2.2vw, 20px);
}

.page-contact .route-item {
  position: relative;
  padding: 22px 22px 24px;
  background: linear-gradient(150deg, rgba(18, 51, 90, 0.62), rgba(6, 18, 36, 0.4));
  border-left: 2px solid var(--aqua-glow);
  border-top: 1px solid var(--line-soft);
}

.page-contact .route-item__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--signal-gold);
}

.page-contact .route-item__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
}

.page-contact .route-item p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-blue);
}

/* 回复时段 */
.page-contact .hours-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .hours-list li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: linear-gradient(90deg, rgba(22, 224, 210, 0.09), transparent 72%);
  border-left: 1px solid var(--line-mid);
  font-size: 15px;
  line-height: 1.72;
  color: var(--gray-blue);
}

.page-contact .hours-key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--aqua-glow);
}

.page-contact .hours-note {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-blue);
}

/* 收束波纹 */
.page-contact .contact-seal {
  margin-top: clamp(20px, 4vw, 44px);
}

.page-contact .contact-seal svg {
  display: block;
  width: 100%;
  height: 24px;
}

@media (min-width: 720px) {
  .page-contact .info-row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-contact .hours-list li {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

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

@media (min-width: 880px) {
  .page-contact .route-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .route-item:nth-child(2) {
    margin-top: 20px;
  }

  .page-contact .route-item:nth-child(3) {
    margin-top: 40px;
  }
}

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

@media (min-width: 960px) {
  .page-contact .letter-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .contact-jump a,
  .page-contact .letter-item__box,
  .page-contact .letter-item__box::after {
    transition: none;
  }
}