.page-contact {
  font-family: var(--sans);
  color: var(--ink);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper) 70%, #EFEAE2 100%);
}

.page-contact .breadcrumb {
  margin: 26px 0 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-masthead {
  padding: 34px 0 40px;
  border-bottom: 1px solid var(--frost);
}

.page-contact .masthead-kicker {
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--grape-mid);
}

.page-contact .contact-masthead h1 {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(32px, 6.2vw, 66px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--grape);
  max-width: 16em;
}

.page-contact .masthead-lede {
  margin: 0 0 26px;
  max-width: 38em;
  font-size: 16.5px;
  line-height: 1.85;
  color: #2A2630;
}

.page-contact .masthead-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.page-contact .pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--frost);
  border-radius: 999px;
  background: #fff;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--grape);
}

.page-contact .pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
}

/* ---------- 通栏图 ---------- */
.page-contact .corridor-frame {
  margin: 0 0 8px;
}

.page-contact .corridor-frame img,
.page-contact .attach-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  max-width: 100%;
}

.page-contact .attach-figure {
  margin: 0;
}

/* ---------- 走廊式区块 ---------- */
.page-contact .corridor {
  margin-top: 18px;
  border-top: 1px solid var(--frost);
}

.page-contact .channel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 30px 0;
  border-bottom: 1px solid var(--frost);
}

.page-contact .channel-num {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--frost);
  transition: color 160ms var(--ease);
}

.page-contact .channel-num::after {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  margin-top: 12px;
  background: var(--frost);
  transition: background-color 160ms var(--ease), width 160ms var(--ease);
}

.page-contact .channel:hover .channel-num,
.page-contact .channel:focus-within .channel-num {
  color: var(--amber);
}

.page-contact .channel:hover .channel-num::after,
.page-contact .channel:focus-within .channel-num::after {
  background: var(--amber);
  width: 44px;
}

.page-contact .channel-title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.005em;
  color: var(--grape);
}

.page-contact .channel-lede {
  margin: 0 0 22px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: #2A2630;
}

.page-contact .channel-note {
  margin: 20px 0 0;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.8;
  color: #55505C;
}

.page-contact .channel-note a {
  color: var(--grape-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--frost);
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-contact .channel-note a:hover,
.page-contact .channel-note a:focus-visible {
  color: var(--grape);
  border-bottom-color: var(--amber);
}

.page-contact .channel-note a:focus-visible,
.page-contact .selfserve a:focus-visible,
.page-contact .tape-list a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- 联系信息块 ---------- */
.page-contact .contact-blocks {
  display: grid;
  gap: 14px;
}

.page-contact .contact-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 20px;
  border: 1px solid var(--frost);
  background: #fff;
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-contact .contact-block:hover,
.page-contact .contact-block:focus-within {
  border-color: var(--amber);
  box-shadow: var(--shadow-1);
}

.page-contact .contact-value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(14px, 3.4vw, 17px);
  letter-spacing: 0.03em;
  color: var(--grape);
  word-break: break-word;
}

.page-contact .contact-use {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #44404C;
}

/* ---------- 回复顺序 ---------- */
.page-contact .order-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  max-width: 42em;
}

.page-contact .order-list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--frost);
  font-size: 15.5px;
  line-height: 1.85;
  color: #3A3640;
}

.page-contact .order-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .order-list strong {
  color: var(--grape);
  font-weight: 700;
}

.page-contact .order-step {
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--grape-mid);
}

/* ---------- 来信三要素 ---------- */
.page-contact .attach-grid {
  display: grid;
  gap: 26px;
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .checklist li {
  border: 1px solid var(--frost);
  background: var(--mist);
  padding: 14px 16px;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .checklist li:hover {
  border-color: var(--amber);
  background: #EDE7F3;
}

.page-contact .checklist label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  cursor: pointer;
}

.page-contact .checklist input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  border: 1px solid var(--grape-mid);
  background: #fff;
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: background-color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .checklist input[type="checkbox"]::after {
  content: "";
  width: 9px;
  height: 5px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translate(-1px, -1px) scale(0);
  transition: transform 160ms var(--ease);
}

.page-contact .checklist input[type="checkbox"]:checked {
  background: var(--moss);
  border-color: var(--moss);
}

.page-contact .checklist input[type="checkbox"]:checked::after {
  transform: rotate(-45deg) translate(-1px, -1px) scale(1);
}

.page-contact .checklist input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .check-key {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--grape);
}

.page-contact .check-desc {
  display: block;
  font-size: 14.5px;
  line-height: 1.75;
  color: #44404C;
}

/* ---------- 地址与备案 ---------- */
.page-contact .registrar {
  background: var(--vine);
  color: var(--paper);
  padding: 24px 20px;
  display: grid;
}

.page-contact .registrar-row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(245, 242, 236, 0.16);
}

.page-contact .registrar-row:first-child {
  padding-top: 0;
}

.page-contact .registrar-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .registrar-key {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .registrar-val {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 常见咨询主题 ---------- */
.page-contact .topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--frost);
}

.page-contact .topic-list li {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--frost);
}

.page-contact .topic-list h3 {
  margin: 0;
  font-family: var(--sans);
  font-size: 17.5px;
  font-weight: 700;
  color: var(--grape);
}

.page-contact .topic-list p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: #3A3640;
}

/* ---------- 自助查询 ---------- */
.page-contact .selfserve {
  display: grid;
  gap: 14px;
}

.page-contact .selfserve a {
  display: block;
  padding: 20px 20px 18px;
  border: 1px solid var(--frost);
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .selfserve a:hover {
  border-color: var(--amber);
  background: var(--mist);
}

.page-contact .selfserve-key {
  display: block;
  margin-bottom: 10px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--grape-mid);
}

.page-contact .selfserve-title {
  display: block;
  margin-bottom: 8px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--grape);
}

.page-contact .selfserve-desc {
  display: block;
  font-size: 14.5px;
  line-height: 1.78;
  color: #44404C;
}

/* ---------- 通道索引带 ---------- */
.page-contact .channel-tape {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  margin: 42px 0 56px;
  padding: 16px 18px;
  background: var(--mist);
  border-top: 1px solid var(--grape);
  border-bottom: 1px solid var(--grape);
}

.page-contact .tape-key {
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--grape);
}

.page-contact .tape-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  flex: 1 1 auto;
}

.page-contact .tape-list a {
  font-size: 14px;
  color: var(--grape);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .tape-list a:hover {
  border-bottom-color: var(--amber);
}

.page-contact .tape-list .mono {
  margin-right: 6px;
  font-size: 12.5px;
  color: var(--grape-mid);
}

.page-contact .tape-stamp {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: #5A5464;
}

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

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

  .page-contact .registrar {
    padding: 30px 28px;
  }

  .page-contact .registrar-row {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-contact .topic-list li {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 30px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-masthead {
    padding: 56px 0 48px;
  }

  .page-contact .channel {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 0 36px;
    padding: 42px 0;
  }

  .page-contact .channel-body {
    max-width: 780px;
  }

  .page-contact .attach-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 330px);
    gap: 42px;
    align-items: start;
  }

  .page-contact .channel-tape {
    margin-bottom: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}