.page-contact {
  --pc-line: var(--grid);
  --pc-panel: rgba(13, 23, 48, 0.62);
  background: var(--void);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(56px, 10vh, 112px) 0 clamp(36px, 6vh, 68px);
  border-bottom: var(--edge);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(58% 78% at 10% 0%, rgba(23, 229, 200, 0.13), transparent 62%),
    radial-gradient(42% 58% at 94% 18%, rgba(255, 90, 43, 0.1), transparent 66%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: 34px;
}

.page-contact .contact-hero h1 {
  margin: 16px 0 0;
  font-size: clamp(28px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 20ch;
}

.page-contact .contact-hero__lede {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.55vw, 18px);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-hero .tag {
  margin-top: 18px;
}

/* ---------- 首屏锚点导航 ---------- */
.page-contact .contact-toc {
  border: var(--edge);
  background: var(--pc-panel);
  align-self: end;
}

.page-contact .contact-toc__title {
  margin: 0;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-contact .contact-toc li + li a {
  border-top: var(--edge);
}

.page-contact .contact-toc a {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 14px;
  padding: 14px 16px;
  color: var(--paper);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
}

.page-contact .contact-toc a:hover,
.page-contact .contact-toc a:focus-visible {
  background: rgba(23, 229, 200, 0.08);
  color: var(--cyan);
}

.page-contact .contact-toc__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 400;
}

/* ---------- 通道区块 ---------- */
.page-contact .channel {
  padding: clamp(44px, 7vh, 84px) 0;
  border-bottom: var(--edge);
}

.page-contact .channel__grid {
  display: grid;
  gap: 26px;
}

.page-contact .channel__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .channel__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.4vw, 42px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .channel__body > p {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-contact .channel__value {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 3.2vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--cyan);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel__value--phone {
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-contact .channel__value--addr {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.1vw, 21px);
  line-height: 1.65;
  letter-spacing: 0;
  color: var(--paper);
  margin-bottom: 18px;
}

.page-contact .channel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
}

.page-contact .channel__note {
  padding-left: 14px;
  border-left: 3px solid var(--cyan);
  color: var(--paper) !important;
}

/* ---------- 反馈口说明网格 ---------- */
.page-contact .feedback-grid {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  border: var(--edge);
}

.page-contact .feedback-cell {
  padding: 18px 18px 20px;
}

.page-contact .feedback-cell:not(:last-child) {
  border-bottom: var(--edge);
}

.page-contact .feedback-cell__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--flare);
}

.page-contact .feedback-cell__val {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 常见场景折叠 ---------- */
.page-contact .scene-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--edge);
}

.page-contact .scene {
  border-bottom: var(--edge);
}

.page-contact .scene summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 18px 2px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .scene__name {
  flex: 1 1 auto;
  font-size: clamp(17px, 2.3vw, 21px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  transition: color 0.15s var(--ease);
}

.page-contact .scene__route {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  border: 1px solid var(--grid);
  padding: 3px 9px;
}

.page-contact .scene[open] .scene__name {
  color: var(--cyan);
}

.page-contact .scene__body {
  padding: 0 2px 24px;
}

.page-contact .scene__body p {
  margin: 0 0 14px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .scene__body ul {
  margin: 0;
  padding-left: 18px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--paper);
}

.page-contact .scene__body li::marker {
  color: var(--cyan);
}

/* ---------- 底部横带 ---------- */
.page-contact .contact-strip {
  padding: 22px 0;
  background: var(--pc-panel);
}

.page-contact .contact-strip__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 40px;
}

.page-contact .contact-strip__item {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  font-size: 14px;
}

.page-contact .contact-strip__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .contact-strip__mail {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
  word-break: break-word;
}

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

.page-contact .contact-strip__val a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 229, 200, 0.4);
}

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

/* ---------- 图片容器微调 ---------- */
.page-contact .figure {
  margin: 26px 0 0;
}

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

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .feedback-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .feedback-cell:nth-child(odd) {
    border-right: var(--edge);
  }

  .page-contact .feedback-cell:nth-child(3) {
    border-bottom: none;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 60fr) minmax(0, 40fr);
    gap: clamp(40px, 5vw, 88px);
    align-items: end;
  }

  .page-contact .channel__grid {
    grid-template-columns: minmax(0, 34fr) minmax(0, 66fr);
    gap: clamp(36px, 5vw, 84px);
  }

  .page-contact .channel__side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-contact .contact-strip__inner {
    justify-content: space-between;
  }
}

@media (min-width: 1200px) {
  .page-contact .channel__body > p,
  .page-contact .scene__body p {
    font-size: 16.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-toc a,
  .page-contact .scene__name,
  .page-contact .contact-strip__val a {
    transition: none;
  }
}