.page-contact {
  --contact-glow: rgba(55, 242, 211, 0.16);
  --contact-glow-alt: rgba(123, 97, 255, 0.18);
}

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3.5vw, 34px) 0 clamp(46px, 7vw, 92px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -14% -12% auto -12%;
  height: clamp(320px, 52vw, 560px);
  background:
    radial-gradient(58% 62% at 26% 18%, var(--contact-glow), transparent 72%),
    radial-gradient(52% 60% at 82% 0%, var(--contact-glow-alt), transparent 70%);
  pointer-events: none;
}

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

.page-contact .contact-hero .crumbs {
  margin-bottom: clamp(22px, 4vw, 42px);
}

.page-contact .contact-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--aqua);
}

.page-contact .page-head__title {
  margin: 0;
  font-size: clamp(28px, 5.4vw, 58px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.page-contact .page-head__lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 36em;
  font-size: clamp(14.5px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-hero__grid {
  align-items: start;
  row-gap: clamp(30px, 5vw, 56px);
}

/* 超大邮箱板 */
.page-contact .contact-mailplate {
  position: relative;
  margin-top: clamp(26px, 4vw, 40px);
  padding: clamp(20px, 3vw, 30px) clamp(18px, 3vw, 30px) clamp(20px, 3vw, 28px) clamp(22px, 3.2vw, 34px);
  background: linear-gradient(148deg, rgba(11, 32, 56, 0.96), rgba(6, 20, 36, 0.92));
  border: 1px solid var(--grid-line);
  border-radius: var(--r-lg) var(--r-sm) var(--r-lg) var(--r-lg);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .contact-mailplate::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(22px, 3vw, 32px);
  bottom: clamp(22px, 3vw, 32px);
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--aqua), rgba(55, 242, 211, 0.15));
}

.page-contact .contact-mailplate:hover {
  border-color: rgba(55, 242, 211, 0.45);
  box-shadow: 0 18px 44px rgba(6, 20, 36, 0.55);
}

.page-contact .contact-mailplate__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--aqua);
}

.page-contact .contact-mailplate__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3.5vw, 33px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--mist);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-mailplate__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: 18px;
}

.page-contact .contact-copy {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  padding: 9px 16px;
  color: var(--deep);
  background: var(--aqua);
  border: 1px solid var(--aqua);
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .contact-copy:hover,
.page-contact .contact-copy:focus-visible {
  background: var(--signal);
  border-color: var(--signal);
  transform: translateY(-1px);
}

.page-contact .contact-copy:focus-visible {
  outline: 2px solid var(--mist);
  outline-offset: 3px;
}

.page-contact .contact-copy[data-copied="true"] {
  background: var(--ok);
  border-color: var(--ok);
}

.page-contact .contact-mailplate__hint {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* 图框 */
.page-contact .contact-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .contact-figure .media-frame {
  overflow: hidden;
}

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

.page-contact .contact-figure .media-frame__caption {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 电话与地址信息带 */
.page-contact .contact-band {
  padding-top: clamp(6px, 1.5vw, 14px);
  padding-bottom: clamp(28px, 4vw, 52px);
}

.page-contact .contact-band__grid {
  display: grid;
  row-gap: 0;
}

.page-contact .contact-band__item {
  position: relative;
  padding: clamp(20px, 3vw, 30px) 0 clamp(20px, 3vw, 30px) 20px;
  border-top: 1px solid var(--grid-line);
  transition: background var(--dur) var(--ease);
}

.page-contact .contact-band__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(24px, 3.6vw, 36px);
  width: 2px;
  height: 24px;
  background: var(--aqua);
  opacity: 0.75;
  transition: background var(--dur) var(--ease), height var(--dur) var(--ease);
}

.page-contact .contact-band__item:hover {
  background: rgba(30, 58, 87, 0.18);
}

.page-contact .contact-band__item:hover::before {
  background: var(--signal);
  height: 34px;
}

.page-contact .contact-band__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .contact-band__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.25;
  color: var(--aqua);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color var(--dur) var(--ease);
}

.page-contact a.contact-band__value:hover,
.page-contact a.contact-band__value:focus-visible {
  color: var(--signal);
}

.page-contact .contact-band__value--addr {
  font-family: var(--font-sans);
  font-size: clamp(16px, 2.3vw, 23px);
  font-weight: 500;
  color: var(--mist);
}

.page-contact .contact-band__note {
  margin: 10px 0 0;
  max-width: 34em;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* 章节通用 */
.page-contact .contact-section-head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 22px);
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-contact .contact-section-head .chapter-no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(36px, 7vw, 86px);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.04em;
  color: var(--signal);
}

.page-contact .contact-section-head h2 {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 30px);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.005em;
  color: var(--mist);
}

.page-contact .contact-lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(14px, 1.45vw, 16.5px);
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .contact-body {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 36em;
  font-size: clamp(13.5px, 1.4vw, 15.5px);
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .contact-inline-code {
  font-family: var(--font-mono);
  color: var(--signal);
  font-size: 0.95em;
}

.page-contact .contact-subhead {
  margin: clamp(22px, 3vw, 32px) 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--aqua);
}

/* 编号拆解 */
.page-contact .contact-kit__grid {
  row-gap: clamp(28px, 4vw, 48px);
}

.page-contact .kit-parts {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .kit-parts li {
  padding-top: 12px;
  border-top: 1px solid var(--grid-line);
}

.page-contact .kit-parts__code {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.3vw, 26px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--signal);
}

.page-contact .kit-parts__name {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--aqua);
}

.page-contact .kit-parts li p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .kit-subject {
  margin: 0;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.6vw, 16px);
  line-height: 1.6;
  color: var(--mist);
  background: rgba(30, 58, 87, 0.35);
  border-left: 3px solid var(--track);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  overflow-wrap: anywhere;
}

.page-contact .contact-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: clamp(20px, 2.6vw, 28px);
  padding-top: 16px;
  border-top: 1px solid var(--grid-line);
}

.page-contact .contact-kit__aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .contact-kit__aside .exhibit {
  border-radius: var(--r-md) var(--r-lg) var(--r-md) var(--r-md);
}

.page-contact .contact-kit__aside-second {
  margin-left: clamp(0px, 3vw, 34px);
}

/* 合作 */
.page-contact .partner-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-contact .partner-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px 14px;
  padding: clamp(14px, 2.2vw, 20px) 0;
  border-top: 1px solid var(--grid-line);
  transition: background var(--dur) var(--ease);
}

.page-contact .partner-list li:hover {
  background: rgba(30, 58, 87, 0.2);
}

.page-contact .partner-list__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--violet);
  padding-top: 3px;
}

.page-contact .partner-list__title {
  margin: 0;
  font-size: clamp(14.5px, 1.6vw, 17px);
  font-weight: 500;
  color: var(--mist);
}

.page-contact .partner-list__desc {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-partner__tail {
  max-width: 44em;
  padding-top: clamp(16px, 2vw, 22px);
  border-top: 1px solid var(--grid-line);
}

.page-contact .contact-partner__tail .link-arrow {
  margin-left: 6px;
}

/* 准备清单 */
.page-contact .prep-grid {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-contact .prep-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  background: rgba(11, 32, 56, 0.62);
  border: 1px solid var(--grid-line);
  border-radius: var(--r-sm) var(--r-md) var(--r-sm) var(--r-sm);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .prep-check:hover {
  border-color: rgba(143, 169, 192, 0.55);
  background: rgba(11, 32, 56, 0.9);
}

.page-contact .prep-check input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  border: 1px solid var(--muted);
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .prep-check input[type="checkbox"]:checked {
  background: var(--aqua);
  border-color: var(--aqua);
  box-shadow: inset 0 0 0 4px var(--hull);
}

.page-contact .prep-check input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 2px;
}

.page-contact .prep-check__text {
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .prep-check__hint {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .prep-check:has(input:checked) {
  border-color: var(--aqua);
}

/* 服务时间 */
.page-contact .contact-hours {
  padding-bottom: clamp(44px, 6vw, 84px);
}

.page-contact .contact-hours__grid {
  row-gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .hours-list {
  list-style: none;
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 0;
}

.page-contact .hours-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 13px 0;
  border-top: 1px solid var(--grid-line);
}

.page-contact .hours-list__key {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--signal);
}

.page-contact .hours-list__val {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-hours__figure .contact-figure {
  gap: 14px;
}

.page-contact .contact-quiet {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px 28px;
  margin-top: clamp(32px, 5vw, 58px);
  padding-top: 20px;
  border-top: 1px solid var(--grid-line);
}

.page-contact .contact-quiet p {
  margin: 0;
  max-width: 40em;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-quiet__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

/* 中屏及以上 */
@media (min-width: 700px) {
  .page-contact .kit-parts {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px 22px;
  }

  .page-contact .prep-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-band__grid {
    grid-template-columns: 1fr 1fr;
    column-gap: clamp(30px, 5vw, 68px);
  }

  .page-contact .contact-band__item + .contact-band__item {
    padding-left: clamp(30px, 5vw, 68px);
    border-left: 1px solid var(--grid-line);
  }

  .page-contact .contact-band__item + .contact-band__item::before {
    left: 0;
  }

  .page-contact .kit-parts {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .page-contact .contact-kit__aside {
    padding-top: 6px;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-hero__grid {
    align-items: center;
  }

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

  .page-contact .contact-hours__figure {
    padding-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-copy,
  .page-contact .contact-band__item,
  .page-contact .contact-band__item::before,
  .page-contact .prep-check,
  .page-contact .prep-check input[type="checkbox"],
  .page-contact .partner-list li,
  .page-contact .contact-mailplate {
    transition: none;
  }
}