.page-contact {
  --contact-max: 780px;
  --contact-pad: clamp(1.15rem, 5vw, 2.5rem);
  --contact-moss-light: #9CCBA8;
  background: var(--abyss);
  color: var(--fog);
  font-family: var(--font-sans);
  padding-bottom: clamp(3rem, 9vw, 6rem);
  overflow-x: clip;
}

.page-contact .contact-shell {
  width: 100%;
  max-width: var(--contact-max);
  margin-inline: auto;
  padding-inline: var(--contact-pad);
}

.page-contact .contact-shell--head {
  padding-top: calc(var(--header-h) + clamp(1rem, 3vw, 2rem));
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver);
}

.page-contact .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--speed) var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  border-bottom-color: currentColor;
}

.page-contact .breadcrumb__sep {
  opacity: 0.5;
}

.page-contact .breadcrumb__now {
  color: var(--silver);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-lead {
  padding-bottom: clamp(1.75rem, 5vw, 2.75rem);
}

.page-contact .contact-lead h1 {
  margin: 0.65rem 0 0;
  font-size: clamp(2.05rem, 7vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .lede {
  margin: clamp(1rem, 3vw, 1.5rem) 0 0;
  max-width: 60ch;
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .contact-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: clamp(1.25rem, 3.5vw, 1.75rem);
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(31, 224, 208, 0.07);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .contact-status__dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--cyan);
  animation: contactPulse 2.6s var(--ease) infinite;
}

@keyframes contactPulse {
  0% { box-shadow: 0 0 0 0 rgba(31, 224, 208, 0.5); }
  70% { box-shadow: 0 0 0 9px rgba(31, 224, 208, 0); }
  100% { box-shadow: 0 0 0 0 rgba(31, 224, 208, 0); }
}

/* ---------- 通栏氛围图 ---------- */
.page-contact .contact-banner {
  position: relative;
  width: 100%;
  margin-bottom: clamp(2rem, 6vw, 3.25rem);
  border-block: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: clamp(180px, 34vw, 380px);
  object-fit: cover;
  opacity: 0.82;
}

.page-contact .contact-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg,
      rgba(10, 31, 51, 0.62) 0%,
      rgba(10, 31, 51, 0.14) 42%,
      rgba(10, 31, 51, 0.92) 100%);
}

/* ---------- 分区 ---------- */
.page-contact .contact-block {
  padding-block: clamp(2rem, 6vw, 3.25rem);
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-body > .contact-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .contact-block__title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 clamp(1rem, 3vw, 1.5rem);
  font-size: clamp(1.3rem, 3.6vw, 1.7rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .contact-block__title::before {
  content: "";
  flex: 0 0 auto;
  width: 22px;
  height: 3px;
  background: var(--coral);
}

.page-contact .contact-block__intro {
  margin: 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .contact-block__foot {
  margin: clamp(1.25rem, 3.5vw, 1.75rem) 0 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .contact-block__action {
  margin: 1.15rem 0 0;
}

/* ---------- 通道卡 ---------- */
.page-contact .chan {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: clamp(1.25rem, 4vw, 1.85rem);
  padding-left: clamp(1.4rem, 4.4vw, 2rem);
  background: linear-gradient(160deg, rgba(18, 58, 90, 0.92), rgba(10, 31, 51, 0.92));
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-contact .chan + .chan {
  margin-top: 1rem;
}

.page-contact .chan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--moss));
}

.page-contact .chan__tag {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .chan__value {
  margin: 0 0 0.8rem;
  font-size: clamp(1.05rem, 3vw, 1.28rem);
  font-weight: 600;
  line-height: 1.45;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .chan__value--addr {
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--fog);
}

.page-contact .chan__desc {
  margin: 0 0 0.9rem;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .chan__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--contact-moss-light);
}

.page-contact .chan__media {
  margin: 1.1rem 0 0;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  overflow: hidden;
}

.page-contact .chan__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: 0.72;
}

/* 地址卡的经纬网格底纹 */
.page-contact .chan--addr {
  background-image:
    repeating-linear-gradient(0deg, rgba(31, 224, 208, 0.075) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(31, 224, 208, 0.075) 0 1px, transparent 1px 28px),
    linear-gradient(160deg, rgba(18, 58, 90, 0.92), rgba(10, 31, 51, 0.92));
}

/* ---------- 问题类型折叠 ---------- */
.page-contact .ask {
  display: grid;
  gap: 0.65rem;
  margin-top: clamp(1.25rem, 3.5vw, 1.75rem);
}

.page-contact .ask__item {
  border: 1px solid var(--line-soft);
  border-radius: var(--notch);
  background: rgba(18, 58, 90, 0.42);
  overflow: hidden;
  transition: border-color var(--speed) var(--ease), background-color var(--speed) var(--ease);
}

.page-contact .ask__item[open] {
  border-color: var(--line);
  background: rgba(18, 58, 90, 0.78);
}

.page-contact .ask__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem clamp(1rem, 3vw, 1.3rem);
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--fog);
}

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

.page-contact .ask__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-contact .ask__item[open] .ask__q::after {
  content: "−";
}

.page-contact .ask__list {
  list-style: none;
  margin: 0;
  padding: 0 clamp(1rem, 3vw, 1.3rem) 1.15rem;
  display: grid;
  gap: 0.5rem;
}

.page-contact .ask__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .ask__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  opacity: 0.8;
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

/* ---------- 合作清单 ---------- */
.page-contact .partner-list {
  list-style: none;
  margin: clamp(1.25rem, 3.5vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-contact .partner-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  align-items: baseline;
  gap: 0.5rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .partner-list .mono {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--coral);
}

/* ---------- 备案列表 ---------- */
.page-contact .legal-list {
  margin: 0 0 1.1rem;
  display: grid;
  gap: 0.55rem;
}

.page-contact .legal-list > div {
  display: grid;
  grid-template-columns: 5.2rem 1fr;
  gap: 0.75rem;
  align-items: start;
}

.page-contact .legal-list dt {
  padding-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--silver);
  opacity: 0.75;
}

.page-contact .legal-list dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--fog);
  overflow-wrap: anywhere;
}

/* ---------- 底部行动条 ---------- */
.page-contact .contact-cta {
  display: grid;
  gap: 0.85rem;
  justify-items: start;
  margin-top: clamp(2.5rem, 7vw, 4rem);
  padding: clamp(1.5rem, 4.5vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: var(--notch);
  background:
    linear-gradient(135deg, rgba(79, 124, 91, 0.3) 0%, rgba(18, 58, 90, 0.55) 58%, rgba(10, 31, 51, 0.35) 100%);
}

.page-contact .contact-cta__title {
  margin: 0;
  font-size: clamp(1.2rem, 3.2vw, 1.5rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-cta__text {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .chan {
    grid-template-columns: 92px 1fr;
    gap: 0 1.4rem;
  }

  .page-contact .chan__tag {
    padding-top: 0.45rem;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-banner img {
    height: clamp(260px, 26vw, 400px);
  }
}

@media (max-width: 419px) {
  .page-contact .contact-status {
    align-items: flex-start;
    border-radius: var(--notch);
    line-height: 1.5;
  }

  .page-contact .legal-list > div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .page-contact .partner-list li {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-status__dot {
    animation: none;
  }

  .page-contact .ask__item,
  .page-contact .breadcrumb a {
    transition: none;
  }
}