.page-contact {
  --rail-w: minmax(272px, 336px);
  --chan-bg: linear-gradient(158deg, rgba(92, 26, 43, .52), rgba(14, 11, 18, .94));
  --chan-bg-quiet: linear-gradient(158deg, rgba(28, 26, 34, .9), rgba(14, 11, 18, .92));
  padding-bottom: clamp(30px, 5vw, 64px);
}

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

.page-contact .contact-hero {
  padding: clamp(14px, 3vw, 30px) 0 clamp(10px, 2vw, 18px);
}

.page-contact .hero-kicker {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--neon);
}

.page-contact h1 {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 54px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .lede {
  margin: 16px 0 0;
  max-width: 40em;
  color: var(--paper-86);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
}

.page-contact .contact-lead {
  margin: clamp(16px, 2.8vw, 28px) 0 clamp(20px, 3vw, 34px);
}

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

/* ===== 服务台面板：左渠道 + 右说明 ===== */
.page-contact .desk {
  display: grid;
  gap: clamp(20px, 3.2vw, 36px);
}

.page-contact .desk-rail {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .chan {
  padding: 15px 16px 17px;
  background: var(--chan-bg);
  border: 1px solid var(--line);
}

.page-contact .chan--quiet {
  background: var(--chan-bg-quiet);
}

.page-contact .sig {
  display: block;
  width: 88px;
  height: 28px;
  margin-bottom: 8px;
  color: var(--neon);
  opacity: .85;
}

.page-contact .chan-label {
  margin: 0;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-contact .chan-val {
  margin: 7px 0 9px;
  font-family: var(--font-mono);
  font-size: clamp(13.5px, 2.4vw, 16px);
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .chan-val--text {
  font-family: var(--font-body);
  font-size: 15px;
}

.page-contact .chan-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-78);
}

.page-contact .chan--quiet .chan-label + .chan-val {
  margin-bottom: 14px;
}

/* ===== 右栏内容 ===== */
.page-contact .desk-main {
  min-width: 0;
}

.page-contact h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.26;
  color: var(--paper);
}

.page-contact .desk-main h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--paper);
}

.page-contact .slash-sep {
  height: 12px;
  margin: clamp(20px, 3vw, 32px) 0;
  background-image: repeating-linear-gradient(118deg, var(--line) 0 2px, transparent 2px 13px);
  opacity: .8;
}

/* 折叠条目 */
.page-contact .fold {
  margin: 0 0 10px;
  border-left: 2px solid var(--copper);
  background: rgba(243, 237, 226, .035);
}

.page-contact .fold summary {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 13px 16px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .fold summary::before {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--neon);
}

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

.page-contact .fold[open] summary {
  color: var(--gold);
}

.page-contact .fold-body {
  padding: 0 16px 16px 26px;
}

.page-contact .fold-body p {
  margin: 0 0 10px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-78);
}

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

/* 渠道适配列表 */
.page-contact .route-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
}

.page-contact .route-row {
  padding: 13px 15px;
  border-left: 2px solid var(--line);
  background: rgba(243, 237, 226, .035);
  display: grid;
  gap: 5px 18px;
}

.page-contact .route-row dt {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--neon);
}

.page-contact .route-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-78);
}

/* 咨询前的准备 */
.page-contact .prep-grid {
  margin-top: 18px;
}

.page-contact .prep-card {
  padding: 16px 18px 18px;
  background: rgba(14, 11, 18, .6);
  border: 1px solid var(--line);
}

.page-contact .prep-num {
  margin: 0 0 8px;
  font-size: 14px;
  letter-spacing: .14em;
  color: var(--violet);
}

.page-contact .prep-card p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-78);
}

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

.page-contact .prep-link {
  margin-top: 12px;
}

.page-contact .prep-link a,
.page-contact .feedback a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 225, 200, .45);
  padding-bottom: 1px;
  transition: border-color var(--mid) var(--ease), color var(--mid) var(--ease);
}

.page-contact .prep-link a:hover,
.page-contact .prep-link a:focus-visible,
.page-contact .feedback a:hover,
.page-contact .feedback a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* 回复节奏时间轴 */
.page-contact .timeline {
  margin-top: 18px;
}

.page-contact .timeline li h3 {
  color: var(--gold);
}

.page-contact .timeline li p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-78);
}

/* 反馈区 */
.page-contact .feedback {
  display: grid;
  gap: clamp(16px, 3vw, 30px);
  margin-top: 14px;
}

.page-contact .feedback .media {
  margin: 0;
}

.page-contact .feedback .prose:last-of-type {
  margin-bottom: 8px;
}

/* 收尾 */
.page-contact .closing {
  margin-top: clamp(26px, 4vw, 46px);
  padding: clamp(18px, 3vw, 30px);
  background: linear-gradient(120deg, rgba(92, 26, 43, .6), rgba(14, 11, 18, .96));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .closing h2 {
  font-size: clamp(20px, 3vw, 26px);
}

.page-contact .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
}

/* ===== 断点 ===== */
@media (min-width: 600px) {
  .page-contact .route-row {
    grid-template-columns: 118px 1fr;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .feedback {
    grid-template-columns: 1.12fr .88fr;
    align-items: center;
  }
}

@media (min-width: 940px) {
  .page-contact .desk {
    grid-template-columns: var(--rail-w) 1fr;
    align-items: start;
  }

  .page-contact .desk-rail {
    position: sticky;
    top: 104px;
  }

  .page-contact .desk-main {
    position: relative;
    padding-left: clamp(20px, 3vw, 40px);
  }

  .page-contact .desk-main::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 10px;
    background-image: repeating-linear-gradient(150deg, var(--copper) 0 2px, transparent 2px 12px);
    opacity: .6;
  }

  .page-contact .slash-sep {
    margin-left: 0;
    max-width: 100%;
  }
}

@media (max-width: 420px) {
  .page-contact .chan-val {
    font-size: 13px;
  }

  .page-contact .fold summary {
    font-size: 15px;
    padding: 12px 13px;
  }

  .page-contact .fold-body {
    padding: 0 13px 14px 13px;
  }
}