.page-contact {
  --ct-gap: clamp(48px, 7vw, 88px);
  --ct-block: clamp(40px, 5.5vw, 68px);
  --ct-shadow: 0 24px 60px -32px rgba(6, 11, 31, .95);
  background: var(--starfield-900);
  color: var(--ink-white);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-contact figure {
  margin: 0;
}

.page-contact .mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-contact .strong {
  color: var(--star-gold);
  font-weight: 600;
  word-break: break-word;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-bottom: clamp(36px, 6vw, 64px);
}

.page-contact .hero-media {
  position: relative;
  height: clamp(200px, 34vw, 360px);
  overflow: hidden;
  border-bottom: 1px solid var(--panel-line);
}

.page-contact .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .58;
}

.page-contact .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 11, 31, .18) 0%, rgba(6, 11, 31, .72) 60%, var(--starfield-900) 100%),
    linear-gradient(118deg, rgba(42, 27, 77, .72) 0%, rgba(6, 11, 31, 0) 62%);
  pointer-events: none;
}

.page-contact .hero-inner {
  position: relative;
  z-index: 2;
  margin-top: clamp(-72px, -5vw, -32px);
}

.page-contact .hero-inner .crumbs {
  margin-bottom: 20px;
}

.page-contact .hero-inner h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(36px, 8vw, 82px);
  line-height: 1.03;
  letter-spacing: -.01em;
  margin: 12px 0 0;
  max-width: 16ch;
}

.page-contact .hero-inner .lede {
  max-width: 60ch;
  margin-top: 20px;
}

/* ---------- 顶部星轨入口带 ---------- */
.page-contact .orbit-strip {
  list-style: none;
  margin: clamp(30px, 4.5vw, 48px) 0 0;
  padding: 0;
  position: relative;
  display: grid;
}

.page-contact .orbit-node {
  position: relative;
  padding: 20px 0 20px 26px;
  border-top: 1px solid var(--panel-line);
  transition: border-color .16s var(--ease);
}

.page-contact .orbit-node:hover {
  border-top-color: var(--aurora-cyan);
}

.page-contact .orbit-dot {
  position: absolute;
  left: 0;
  top: 25px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--star-gold);
  box-shadow: 0 0 0 4px rgba(255, 194, 75, .14);
  transition: transform .16s var(--ease);
}

.page-contact .orbit-node:hover .orbit-dot {
  transform: scale(1.3);
}

.page-contact .orbit-label {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist-gray);
}

.page-contact .orbit-value {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-white);
  word-break: break-word;
}

.page-contact .orbit-note {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--mist-gray);
}

/* ---------- 主体骨架 ---------- */
.page-contact .contact-body {
  display: grid;
  gap: var(--ct-gap);
  padding-block: var(--ct-gap);
}

.page-contact .contact-stream {
  display: grid;
  gap: var(--ct-block);
  min-width: 0;
}

.page-contact .contact-block {
  position: relative;
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--panel-line);
  min-width: 0;
}

.page-contact .contact-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 56px;
  height: 2px;
  background: linear-gradient(90deg, var(--star-gold), var(--aurora-cyan));
}

.page-contact .block-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.22;
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-contact .contact-block .prose {
  margin-top: 16px;
}

.page-contact .mini-title {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--aurora-cyan);
}

.page-contact .inline-link {
  color: var(--aurora-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 210, .45);
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-contact .inline-link:hover {
  color: var(--ink-white);
  border-bottom-color: var(--ink-white);
}

/* ---------- 清单 ---------- */
.page-contact .check-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .check-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-left: 14px;
  border-left: 2px solid rgba(53, 230, 210, .45);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-white);
  transition: border-color .16s var(--ease);
}

.page-contact .check-list li:hover {
  border-left-color: var(--star-gold);
}

.page-contact .check-list .idx {
  font-size: 12px;
  color: var(--aurora-cyan);
  padding-top: 4px;
  letter-spacing: .08em;
}

.page-contact .check-list b {
  color: var(--star-gold);
  font-weight: 600;
}

.page-contact .check-list--wide {
  margin-top: clamp(20px, 3vw, 28px);
}

/* ---------- 图文分栏 ---------- */
.page-contact .split {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(20px, 3vw, 28px);
}

.page-contact .side-figure {
  border: 1px solid var(--panel-line);
  background: var(--nebula-800);
  padding: 14px;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: border-color .16s var(--ease);
}

.page-contact .side-figure:hover {
  border-color: var(--aurora-cyan);
}

.page-contact .side-figure img {
  width: 100%;
  border-radius: 2px;
}

.page-contact .side-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist-gray);
}

/* ---------- 场景标签 ---------- */
.page-contact .scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* ---------- 折叠说明 ---------- */
.page-contact .fold {
  margin-top: clamp(22px, 3vw, 30px);
  border: 1px solid var(--panel-line);
  background: var(--nebula-800);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: border-color .16s var(--ease);
}

.page-contact .fold:hover {
  border-color: var(--aurora-cyan);
}

.page-contact .fold summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--aurora-cyan);
}

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

.page-contact .fold summary::after {
  content: "+";
  font-size: 17px;
  color: var(--star-gold);
  line-height: 1;
}

.page-contact .fold[open] summary::after {
  content: "–";
}

.page-contact .fold-body {
  padding: 4px 20px 22px;
  border-top: 1px solid var(--panel-line);
}

.page-contact .fold-body .check-list {
  margin-top: 18px;
}

/* ---------- 右侧信息浮岛 ---------- */
.page-contact .contact-island {
  min-width: 0;
}

.page-contact .island-card {
  padding: clamp(22px, 3vw, 30px);
  box-shadow: var(--ct-shadow);
}

.page-contact .island-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 24px);
  line-height: 1.3;
  margin: 12px 0 0;
}

.page-contact .info-list {
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .info-row {
  padding-top: 16px;
  border-top: 1px solid var(--panel-line);
}

.page-contact .info-list dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist-gray);
}

.page-contact .info-list dd {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-white);
  word-break: break-word;
}

.page-contact .island-actions {
  display: grid;
  gap: 10px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--panel-line);
}

/* ---------- 收束氛围块 ---------- */
.page-contact .contact-outro {
  position: relative;
  margin-top: clamp(40px, 6vw, 78px);
  padding-block: clamp(52px, 7vw, 92px);
  border-top: 1px solid var(--panel-line);
  background:
    radial-gradient(78% 130% at 84% 0%, rgba(42, 27, 77, .9) 0%, rgba(6, 11, 31, 0) 66%),
    linear-gradient(180deg, var(--nebula-800) 0%, var(--starfield-900) 100%);
  overflow: hidden;
}

.page-contact .contact-outro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(53, 230, 210, .2) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: .45;
  pointer-events: none;
}

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

.page-contact .outro-inner h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.2;
  margin: 12px 0 0;
  max-width: 20ch;
}

.page-contact .outro-inner p {
  max-width: 62ch;
  margin: 16px 0 0;
  color: var(--mist-gray);
  font-size: 17px;
  line-height: 1.75;
}

.page-contact .outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 回到顶部 ---------- */
.page-contact .to-top {
  position: fixed;
  right: clamp(12px, 3vw, 28px);
  bottom: clamp(12px, 3vw, 28px);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--panel-line);
  border-radius: var(--radius-pill);
  background: rgba(14, 22, 51, .88);
  color: var(--mist-gray);
  font-size: 12px;
  letter-spacing: .1em;
  text-decoration: none;
  transition: border-color .16s var(--ease), color .16s var(--ease), transform .16s var(--ease);
}

.page-contact .to-top-line {
  width: 16px;
  height: 1px;
  background: linear-gradient(90deg, var(--orbit-blue), var(--aurora-cyan));
}

.page-contact .to-top:hover {
  border-color: var(--aurora-cyan);
  color: var(--aurora-cyan);
  transform: translateY(-2px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .split {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .orbit-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .orbit-strip::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--orbit-blue) 18%, var(--aurora-cyan) 50%, var(--star-gold) 82%, transparent);
    opacity: .85;
  }

  .page-contact .orbit-node {
    border-top: 0;
    padding: 26px 26px 4px 26px;
  }

  .page-contact .orbit-node:first-child {
    padding-left: 26px;
  }

  .page-contact .orbit-dot {
    top: 3px;
  }

  .page-contact .orbit-node:hover {
    border-top-color: transparent;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .92fr);
    align-items: start;
  }

  .page-contact .contact-island {
    position: sticky;
    top: 108px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .orbit-dot,
  .page-contact .to-top,
  .page-contact .inline-link,
  .page-contact .check-list li,
  .page-contact .side-figure,
  .page-contact .fold {
    transition: none;
  }
}