.page-contact {
  --ct-radius: 22px;
  --ct-pad: clamp(20px, 3.4vw, 38px);
  --ct-gap: clamp(16px, 2.2vw, 26px);
  --ct-inset: clamp(18px, 2.6vw, 26px);
  padding-bottom: clamp(52px, 8vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  padding-top: clamp(16px, 3.4vw, 38px);
}

.page-contact .contact-breadcrumb {
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-contact .contact-h1 {
  max-width: 17ch;
}

.page-contact .contact-lede {
  max-width: 58ch;
  margin-top: 16px;
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-contact .contact-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-jump a {
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--glass);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--cyan);
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-contact .contact-jump a:hover,
.page-contact .contact-jump a:focus-visible {
  border-color: var(--cyan);
  background: rgba(43, 245, 200, .1);
}

/* ---------- 浮岛区 ---------- */
.page-contact .contact-deck {
  margin-top: clamp(28px, 4.4vw, 54px);
}

.page-contact .contact-islands {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .contact-col {
  display: grid;
  gap: var(--ct-gap);
  align-content: start;
}

.page-contact .contact-island {
  position: relative;
  padding: var(--ct-pad);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  background: var(--ink-2);
  overflow: hidden;
}

.page-contact .contact-island--main {
  border-color: rgba(43, 245, 200, .26);
  background:
    radial-gradient(120% 88% at 0% 0%, rgba(43, 245, 200, .13), transparent 62%),
    radial-gradient(96% 74% at 100% 100%, rgba(42, 27, 74, .8), transparent 72%),
    var(--ink-2);
  box-shadow: var(--shadow-soft);
}

.page-contact .contact-island--sub {
  background:
    linear-gradient(180deg, rgba(230, 255, 248, .05), rgba(230, 255, 248, 0) 46%),
    rgba(10, 35, 28, .78);
}

.page-contact .contact-island-num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .contact-island-title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.3;
  color: var(--text);
}

.page-contact .contact-island-lead {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .contact-island p {
  font-size: 16px;
  line-height: 1.75;
}

/* ---------- 图片 ---------- */
.page-contact .contact-media {
  margin: 0 0 22px;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  overflow: hidden;
  background: var(--ink-deep);
}

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

.page-contact .contact-media--narrow {
  margin: 18px 0 0;
  aspect-ratio: 16 / 9;
}

/* ---------- 订阅要点 ---------- */
.page-contact .contact-points {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-points li {
  padding-left: 16px;
  border-left: 2px solid var(--cyan-deep);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .contact-points li:nth-child(2) {
  border-left-color: var(--coral);
}

.page-contact .contact-points li:nth-child(3) {
  border-left-color: rgba(147, 175, 166, .7);
}

.page-contact .contact-points strong {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  font-weight: 600;
  color: var(--coral-soft);
}

.page-contact .contact-pulse {
  display: block;
  width: 100%;
  height: auto;
  margin: 22px 0 6px;
}

/* ---------- 客服渠道 ---------- */
.page-contact .contact-channels {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-channel {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(4, 20, 15, .55);
}

.page-contact .contact-channel__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-contact .contact-channel__value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.8vw, 16px);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  line-height: 1.5;
  color: var(--cyan);
  word-break: break-word;
}

/* ---------- 旁注 ---------- */
.page-contact .contact-aside {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--coral);
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .contact-aside a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 通用条目列表 ---------- */
.page-contact .contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-list--tight {
  gap: 8px;
}

.page-contact .contact-list li {
  position: relative;
  padding-left: 18px;
  font-size: 16px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .contact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--coral);
  transform: rotate(12deg);
}

.page-contact .contact-list li a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 合作与建议 ---------- */
.page-contact .contact-collab,
.page-contact .contact-boundary,
.page-contact .contact-links {
  margin-top: clamp(44px, 6.4vw, 88px);
}

.page-contact .band {
  height: 10px;
}

.page-contact .contact-section-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .contact-collab-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .contact-collab-col {
  padding: var(--ct-inset);
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  background: rgba(10, 35, 28, .66);
}

.page-contact .contact-collab-col p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .contact-collab-col p a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-sub-title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--cyan);
}

/* ---------- 渠道边界 ---------- */
.page-contact .contact-boundary-details {
  border: 1px solid var(--line);
  border-radius: var(--ct-radius);
  background: rgba(58, 20, 32, .52);
  overflow: hidden;
}

.page-contact .contact-boundary-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px var(--ct-inset);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .contact-boundary-details summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--coral);
}

.page-contact .contact-boundary-details[open] summary::after {
  content: "−";
}

.page-contact .contact-boundary-details summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .contact-boundary-body {
  padding: var(--ct-inset);
  border-top: 1px solid var(--line);
}

.page-contact .contact-boundary-lead {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--coral-soft);
}

.page-contact .contact-slash {
  display: inline-block;
  padding: 2px 10px;
  background: var(--coral);
  color: var(--ink-deep);
  font-weight: 800;
  transform: skewX(-12deg);
}

.page-contact .contact-slash > span {
  display: inline-block;
  transform: skewX(12deg);
}

/* ---------- 相关入口 ---------- */
.page-contact .contact-links__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-links__list a {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--glass);
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-contact .contact-links__list a:hover,
.page-contact .contact-links__list a:focus-visible {
  border-color: var(--cyan);
  background: rgba(43, 245, 200, .08);
}

.page-contact .contact-links__label {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .contact-links__note {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .contact-links__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .contact-collab-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-islands {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-contact .contact-media {
    aspect-ratio: 21 / 9;
  }

  .page-contact .contact-media--narrow {
    aspect-ratio: 16 / 9;
  }

  .page-contact .contact-links__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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