.page-contact {
  --contact-shadow: 0 26px 56px -28px rgba(4, 14, 22, 0.7);
}

.page-contact .contact-band {
  padding: clamp(46px, 8vw, 92px) 0;
}

.page-contact .contact-band--paper {
  background: var(--archive);
  color: var(--ink);
}

.page-contact .contact-band--night {
  background: linear-gradient(180deg, var(--pitch) 0%, var(--night) 100%);
  color: var(--paper);
}

.page-contact .contact-band--slate {
  background: var(--slate);
  color: var(--paper);
}

.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid currentColor;
  opacity: 0.85;
  margin: 0 0 16px;
}

.page-contact .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 6vw, 64px) 0 clamp(40px, 7vw, 88px);
  background:
    radial-gradient(110% 80% at 88% 4%, rgba(31, 242, 209, 0.18), transparent 62%),
    radial-gradient(80% 70% at 4% 96%, rgba(255, 138, 61, 0.16), transparent 66%),
    linear-gradient(180deg, var(--night) 0%, var(--pitch) 100%);
  color: var(--paper);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(31, 242, 209, 0.05) 0 1px,
    transparent 1px 5px
  );
  opacity: 0.5;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
}

.page-contact .breadcrumb {
  margin-bottom: 22px;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--mist);
}

.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(154, 182, 198, 0.6);
}

.page-contact .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan-line);
}

.page-contact .breadcrumb__current {
  color: var(--paper);
}

.page-contact .contact-hero h1 {
  font-size: clamp(30px, 6.6vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  max-width: 18ch;
}

.page-contact .contact-hero__lede {
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.85;
  color: rgba(248, 251, 247, 0.82);
  max-width: 46ch;
  margin: 0 0 26px;
}

.page-contact .contact-hero__lines {
  display: grid;
  gap: 12px;
  margin-bottom: 12px;
}

.page-contact .hotline {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin: 0;
  padding: 14px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--cyan-line);
  background: rgba(31, 242, 209, 0.07);
}

.page-contact .hotline__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  flex: none;
}

.page-contact .hotline__value {
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.2vw, 25px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
  user-select: all;
  overflow-wrap: anywhere;
  min-width: 0;
}

.page-contact .contact-hero__hint {
  font-size: 13px;
  color: var(--mist);
  margin: 0 0 24px;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-hero__media {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(31, 242, 209, 0.24);
  box-shadow: var(--contact-shadow);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

/* ---------- 通用标题组 ---------- */
.page-contact .band-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .band-head h2 {
  font-size: clamp(24px, 4.6vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}

.page-contact .band-head__lede {
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.85;
  color: rgba(17, 24, 39, 0.75);
  margin: 0;
}

.page-contact .contact-band--night .band-head__lede,
.page-contact .contact-band--slate .band-head__lede {
  color: rgba(248, 251, 247, 0.78);
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 16px;
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, var(--pitch) 0%, var(--night) 100%);
  color: var(--paper);
  border-top: 3px solid var(--cyan);
  box-shadow: var(--contact-shadow);
}

.page-contact .channel__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(19px, 4.6vw, 27px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .channel__value--addr {
  font-size: clamp(16px, 3.6vw, 20px);
  line-height: 1.5;
}

.page-contact .channel__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(248, 251, 247, 0.72);
}

/* ---------- 响应时段 ---------- */
.page-contact .response {
  position: relative;
}

.page-contact .response__grid {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
}

.page-contact .clock-dial {
  font-size: clamp(38px, 12vw, 86px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
  margin: 0 0 18px;
  text-shadow: 0 0 42px rgba(31, 242, 209, 0.28);
  white-space: nowrap;
}

.page-contact .clock-dial__dash {
  color: var(--sunset);
  margin: 0 0.1em;
}

.page-contact .response__caption {
  margin: 0;
  max-width: 40ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(248, 251, 247, 0.76);
}

.page-contact .response__title {
  font-size: clamp(20px, 3.6vw, 26px);
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

.page-contact .priority-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-top: 1px solid rgba(31, 242, 209, 0.24);
}

.page-contact .priority {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(31, 242, 209, 0.18);
}

.page-contact .priority__num {
  flex: none;
  font-size: 13px;
  color: var(--sunset);
  padding-top: 3px;
}

.page-contact .priority__name {
  margin: 0 0 4px;
  font-size: 16.5px;
  font-weight: 700;
}

.page-contact .priority__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(248, 251, 247, 0.74);
}

/* ---------- 问题分流 ---------- */
.page-contact .router {
  display: grid;
  gap: 12px;
}

.page-contact .router__item {
  --dot: var(--cyan);
  border-radius: var(--radius-md);
  background: rgba(248, 251, 247, 0.9);
  border: 1px solid rgba(14, 58, 74, 0.16);
  overflow: hidden;
}

.page-contact .router__item[data-tone="cyan"] {
  --dot: var(--cyan);
}

.page-contact .router__item[data-tone="sunset"] {
  --dot: var(--sunset);
}

.page-contact .router__item[data-tone="signal"] {
  --dot: var(--signal);
}

.page-contact .router__item[data-tone="slate"] {
  --dot: var(--slate);
}

.page-contact .router__item[data-tone="mist"] {
  --dot: var(--mist);
}

.page-contact .router__item[open] {
  border-color: rgba(14, 58, 74, 0.3);
  box-shadow: 0 18px 36px -28px rgba(14, 58, 74, 0.6);
}

.page-contact .router__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
  list-style: none;
}

.page-contact .router__summary::-webkit-details-marker {
  display: none;
}

.page-contact .router__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--slate);
}

.page-contact .router__item[open] .router__summary::after {
  content: "–";
}

.page-contact .router__summary:focus-visible {
  outline: 2px solid var(--slate);
  outline-offset: -2px;
}

.page-contact .router__dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--dot);
  box-shadow: 0 0 0 4px rgba(14, 58, 74, 0.1);
}

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

.page-contact .router__hint {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--slate);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(14, 58, 74, 0.24);
  white-space: nowrap;
}

.page-contact .router__body {
  padding: 0 18px 18px 40px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(17, 24, 39, 0.82);
}

.page-contact .router__body p {
  margin: 0 0 10px;
}

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

/* ---------- 合作与媒体 ---------- */
.page-contact .partner__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: start;
}

.page-contact .partner__copy h2 {
  font-size: clamp(23px, 4.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
}

.page-contact .partner__copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(248, 251, 247, 0.8);
  max-width: 52ch;
}

.page-contact .partner__copy .btn {
  margin-top: 8px;
}

.page-contact .partner__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin: 0;
}

.page-contact .partner__stat {
  padding: 20px 16px;
  border-radius: var(--radius-md);
  background: rgba(31, 242, 209, 0.08);
  border: 1px solid rgba(31, 242, 209, 0.28);
}

.page-contact .partner__stat dt {
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(248, 251, 247, 0.72);
  margin-bottom: 8px;
}

.page-contact .partner__stat dd {
  margin: 0;
  font-size: clamp(26px, 6vw, 34px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

/* ---------- 地址与备案 ---------- */
.page-contact .address-grid {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
  align-items: stretch;
}

.page-contact .address-grid__media {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--contact-shadow);
}

.page-contact .address-grid__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

.page-contact .archive-card {
  background: var(--paper);
  border: 1px solid rgba(14, 58, 74, 0.18);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  color: var(--ink);
}

.page-contact .archive-card__tag {
  margin: 0 0 16px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-contact .archive-card__list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .archive-card__row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(14, 58, 74, 0.22);
}

.page-contact .archive-card__row dt {
  flex: none;
  width: 84px;
  font-size: 13px;
  color: rgba(17, 24, 39, 0.62);
}

.page-contact .archive-card__row dd {
  margin: 0;
  flex: 1 1 140px;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.page-contact .archive-card__foot {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(17, 24, 39, 0.66);
}

/* ---------- 收尾 ---------- */
.page-contact .closing__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .closing h2 {
  font-size: clamp(23px, 4.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}

.page-contact .closing__lede {
  margin: 0;
  max-width: 50ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(248, 251, 247, 0.8);
}

.page-contact .closing__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-contact .closing__legal {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-contact .closing__legal a:hover,
.page-contact .closing__legal a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 动画 ---------- */
.page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  transition-delay: calc(var(--i, 0) * 70ms);
}

.page-contact [data-reveal][data-shown="true"] {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .response__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-contact .router__summary {
    padding: 16px 22px;
  }

  .page-contact .router__body {
    padding: 0 22px 20px 44px;
  }

  .page-contact .closing__actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .page-contact .closing__legal {
    flex-basis: 100%;
    margin-top: 8px;
  }
}

@media (min-width: 940px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .contact-hero__media img {
    aspect-ratio: 16 / 11;
  }

  .page-contact .partner__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-contact .address-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-contact .closing__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-contact .closing__actions {
    justify-content: flex-end;
  }

  .page-contact .closing__legal {
    text-align: right;
  }
}

.page-contact {
  --i: 0.3s;
}