.page-contact {
  --pc-gap: clamp(56px, 8vw, 104px);
  --pc-radius: 26px;
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-contact .pc-crumbs {
  padding-top: 22px;
}

.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-contact .breadcrumb__sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 30px;
  padding-block: 32px clamp(20px, 4vw, 40px);
}

.page-contact .contact-hero__main .eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-contact .contact-hero .display-title {
  margin: 0 0 18px;
  font-size: clamp(30px, 6.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-contact .contact-hero .lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-hero__aside {
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(27, 22, 56, 0.92), rgba(6, 23, 38, 0.92));
  padding: 22px 22px 24px;
  display: grid;
  gap: 18px;
  align-content: center;
}

.page-contact .hero-fact {
  margin: 0;
  display: grid;
  gap: 5px;
}

.page-contact .hero-fact__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .hero-fact__value {
  font-family: var(--font-numeric);
  font-size: 15px;
  line-height: 1.5;
  color: var(--cyan);
}

/* ---------- 通用章节 ---------- */
.page-contact .pc-section {
  padding-block: var(--pc-gap);
}

.page-contact .pc-section--teal {
  background: linear-gradient(180deg, rgba(11, 44, 59, 0.92), rgba(6, 23, 38, 0.96));
  border-block: 1px solid var(--line);
}

.page-contact .pc-section--shortcut {
  background: linear-gradient(180deg, rgba(27, 22, 56, 0.7), rgba(6, 23, 38, 0.95));
  border-top: 1px solid var(--line);
}

.page-contact .pc-head {
  max-width: 660px;
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-contact .pc-head .eyebrow {
  margin: 0;
  color: var(--cyan);
}

.page-contact .pc-head .section-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.page-contact .pc-head__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .pc-foot-note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 渠道横幅 ---------- */
.page-contact .channel-banner {
  position: relative;
  margin: 0 0 22px;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--teal);
}

.page-contact .channel-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
}

.page-contact .channel-banner figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  padding: 10px 16px;
  border-radius: var(--r-pill);
  background: rgba(4, 16, 28, 0.78);
  border: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--muted);
  backdrop-filter: blur(4px);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 26px;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(11, 44, 59, 0.95), rgba(6, 23, 38, 0.95));
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 20px 44px -26px rgba(61, 240, 208, 0.55);
}

.page-contact .channel-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 15px;
  border: 1px solid var(--line);
  background: rgba(61, 240, 208, 0.08);
  color: var(--cyan);
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-contact .channel-card:hover .channel-icon {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--abyss);
}

.page-contact .channel-label {
  margin: 4px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: clamp(15px, 3.2vw, 18px);
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-value--cn {
  font-family: var(--font-body);
  font-size: 17px;
  letter-spacing: 0;
  color: var(--text);
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .channel-meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-numeric);
  font-size: 13px;
  color: var(--muted);
}

/* 步骤条 */
.page-contact .mini-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}

.page-contact .mini-flow__node {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(61, 240, 208, 0.35);
  background: rgba(61, 240, 208, 0.08);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--mint);
  white-space: nowrap;
}

.page-contact .mini-flow__node strong {
  font-family: var(--font-numeric);
  font-weight: 600;
  color: var(--amber);
}

.page-contact .mini-flow__link {
  flex: 0 0 16px;
  height: 0;
  border-top: 1px dashed rgba(157, 180, 196, 0.45);
}

/* ---------- 邮件流程 ---------- */
.page-contact .step-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-contact .step {
  position: relative;
  padding: 22px 20px 24px;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: rgba(6, 23, 38, 0.68);
}

.page-contact .step__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-numeric);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .step__title {
  margin: 0 0 9px;
  font-size: 17px;
  line-height: 1.4;
}

.page-contact .step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 地址与备案 ---------- */
.page-contact .locale-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}

.page-contact .locale-col {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-contact .locale-figure {
  margin: 0;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--indigo);
}

.page-contact .locale-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 240px;
  object-fit: cover;
}

.page-contact .locale-panel {
  position: relative;
  padding: 24px 22px 44px;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(58, 27, 42, 0.78), rgba(6, 23, 38, 0.92));
  overflow: hidden;
}

.page-contact .locale-panel--icp {
  background: linear-gradient(165deg, rgba(27, 22, 56, 0.88), rgba(6, 23, 38, 0.94));
}

.page-contact .locale-panel::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 16px;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 9px);
}

.page-contact .locale-panel__title {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .addr-line {
  margin: 12px 0 0;
  font-size: clamp(18px, 3.4vw, 22px);
  line-height: 1.5;
  color: var(--text);
}

.page-contact .icp-code {
  margin: 12px 0 10px;
  font-family: var(--font-numeric);
  font-size: 17px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-contact .locale-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .addr-details {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-contact .addr-details summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  color: var(--mint);
}

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

.page-contact .addr-details summary::after {
  content: "＋";
  font-family: var(--font-numeric);
  color: var(--cyan);
}

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

.page-contact .addr-details__body p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 反馈建议 ---------- */
.page-contact .advice {
  padding: 26px 22px 28px;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(11, 44, 59, 0.72), rgba(6, 23, 38, 0.92));
}

.page-contact .advice__title {
  margin: 0;
  font-size: clamp(19px, 3vw, 23px);
  line-height: 1.35;
}

.page-contact .advice__intro {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .advice-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .advice-list li {
  position: relative;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .advice-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 19px;
  height: 19px;
  border-radius: 6px;
  border: 1px solid var(--cyan);
  background: rgba(61, 240, 208, 0.12);
}

.page-contact .advice-list li::after {
  content: "✓";
  position: absolute;
  left: 4px;
  top: 4px;
  width: 19px;
  height: 19px;
  line-height: 19px;
  text-align: center;
  font-size: 11px;
  color: var(--cyan);
}

.page-contact .advice-note {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 110, 110, 0.3);
  background: rgba(58, 27, 42, 0.55);
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-contact .partner-card {
  padding: 24px 22px 26px;
  border-radius: var(--pc-radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(27, 22, 56, 0.88), rgba(6, 23, 38, 0.92));
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .partner-card:hover {
  transform: translateY(-2px);
  border-color: var(--amber);
}

.page-contact .partner-card__title {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.4;
}

.page-contact .partner-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 快捷入口 ---------- */
.page-contact .shortcut-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-contact .shortcut-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: rgba(6, 23, 38, 0.72);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), color 0.22s var(--ease);
}

.page-contact .shortcut-link:hover {
  border-color: var(--cyan);
  background: rgba(61, 240, 208, 0.08);
  color: var(--mint);
}

.page-contact .shortcut-link__arrow {
  font-family: var(--font-numeric);
  color: var(--cyan);
}

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

  .page-contact .step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 48px;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .channel-card--wide {
    grid-column: 1 / -1;
  }

  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-contact .locale-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
    gap: 28px;
  }
}

@media (min-width: 1080px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.55fr 1fr 1fr;
  }

  .page-contact .channel-card--wide {
    grid-column: auto;
  }

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

  .page-contact .shortcut-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .partner-card,
  .page-contact .shortcut-link,
  .page-contact .channel-icon {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .partner-card:hover {
    transform: none;
  }
}