.page-contact {
  --pc-shadow: 0 1px 0 rgba(17, 17, 17, .05), 0 14px 26px -20px rgba(17, 17, 17, .42);
  --pc-edge: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-contact .crumbs {
  padding-top: clamp(18px, 3vw, 28px);
  padding-bottom: clamp(14px, 2.4vw, 22px);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-contact .crumbs a {
  color: var(--deep);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .crumbs a:hover {
  color: var(--red);
}

.page-contact .section-lead {
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--muted);
  margin: 10px 0 0;
  max-width: 62ch;
}

.page-contact .lede {
  font-family: var(--font-body);
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.85;
  color: #2b2722;
  max-width: 60ch;
  margin: 0 0 26px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  border-top: 3px solid var(--deep);
  border-bottom: 1px solid var(--line-soft);
  background:
    linear-gradient(180deg, rgba(201, 169, 110, .22), rgba(201, 169, 110, 0) 68%),
    var(--paper);
  padding: clamp(34px, 5vw, 62px) 0 clamp(34px, 5vw, 56px);
}

.page-contact .hero-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-contact .hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.2vw, 52px);
  line-height: 1.08;
  letter-spacing: -.022em;
  margin: 12px 0 18px;
  text-wrap: balance;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .hero-quick {
  background: var(--paper-2);
  border: var(--pc-edge);
  box-shadow: 8px 8px 0 var(--sand-2);
  padding: 20px 22px 22px;
}

.page-contact .quick-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .01em;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--haze);
}

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

.page-contact .quick-list li {
  position: relative;
  padding-left: 20px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: #2b2722;
}

.page-contact .quick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 9px;
  height: 2px;
  background: var(--red);
}

.page-contact .quick-list strong {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--deep);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channels {
  padding: clamp(40px, 6vw, 76px) 0 clamp(30px, 4vw, 52px);
}

.page-contact .channel-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-contact .channel-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .channel-card {
  position: relative;
  background: var(--paper-2);
  border: var(--pc-edge);
  box-shadow: var(--pc-shadow);
  padding: 20px 22px 22px 26px;
  overflow: hidden;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--sand);
}

.page-contact .channel-card:nth-child(2)::before {
  background: var(--deep-2);
}

.page-contact .channel-card:nth-child(3)::before {
  background: var(--haze);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-contact .channel-head h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17.5px;
  margin: 0;
  letter-spacing: -.01em;
}

.page-contact .channel-value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 12px 0 10px;
}

.page-contact .value-text {
  font-family: var(--font-body);
  font-size: clamp(15px, 2.1vw, 19px);
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--ink);
  background: linear-gradient(180deg, transparent 62%, var(--sand-2) 62%);
  padding: 0 2px;
  word-break: break-all;
}

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

.page-contact .copy-btn {
  flex: none;
  border: 1px solid var(--deep);
  background: transparent;
  color: var(--deep);
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .06em;
  padding: 7px 13px;
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--deep);
  color: var(--paper);
  transform: translateY(-1px);
}

.page-contact .copy-btn[data-copied] {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}

/* 状态面板 */
.page-contact .channel-side {
  display: grid;
  gap: 22px;
}

.page-contact .status-panel {
  background: var(--deep);
  color: var(--paper);
  border: var(--pc-edge);
  box-shadow: 8px 8px 0 rgba(201, 169, 110, .55);
  padding: 24px 22px 20px;
}

.page-contact .status-eyebrow {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sand);
  margin: 0;
}

.page-contact .status-time {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.2vw, 28px);
  letter-spacing: -.015em;
  margin: 8px 0 2px;
  color: var(--paper);
}

.page-contact .status-tz {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: .12em;
  color: rgba(247, 243, 234, .68);
  margin: 0 0 16px;
}

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

.page-contact .status-list li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 12px 0;
  border-top: 1px solid rgba(247, 243, 234, .18);
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.68;
  color: rgba(247, 243, 234, .9);
}

.page-contact .status-dot {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: .55em;
  border-radius: 50%;
  background: var(--sand);
}

.page-contact .status-dot--on {
  background: #6FBF9A;
}

.page-contact .status-dot--off {
  background: var(--sand);
}

.page-contact .status-dot--mail {
  background: var(--red);
}

.page-contact .side-figure {
  border: 1px solid var(--line-soft);
}

/* ---------- 运营地区 ---------- */
.page-contact .region {
  margin-top: clamp(30px, 5vw, 56px);
  padding: clamp(40px, 6vw, 72px) 0;
  background: var(--sand-2);
  border-top: var(--pc-edge);
  border-bottom: var(--pc-edge);
}

.page-contact .region-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
}

.page-contact .region-copy h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.18;
  letter-spacing: -.018em;
  margin: 12px 0 14px;
}

.page-contact .region-copy p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: #3a332a;
  margin: 0;
  max-width: 58ch;
}

.page-contact .region-copy a {
  color: var(--deep);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 78, 95, .45);
}

.page-contact .region-copy a:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-contact .region-facts {
  margin: 24px 0 0;
  display: grid;
  gap: 0;
}

.page-contact .fact {
  display: grid;
  gap: 5px;
  padding: 12px 0;
  border-top: 1px dashed rgba(31, 78, 95, .4);
}

.page-contact .fact dt {
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(31, 78, 95, .8);
}

.page-contact .fact dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .region-figure {
  border: var(--pc-edge);
  box-shadow: 10px 10px 0 rgba(31, 78, 95, .16);
}

/* ---------- 帮助中心入口 ---------- */
.page-contact .help-entry {
  padding: clamp(40px, 6vw, 76px) 0 clamp(10px, 2vw, 20px);
}

.page-contact .help-inner {
  background: var(--paper-2);
  border: var(--pc-edge);
  box-shadow: 12px 12px 0 var(--sand);
  padding: clamp(24px, 4vw, 40px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}

.page-contact .help-copy h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.18;
  letter-spacing: -.018em;
  margin: 12px 0 14px;
}

.page-contact .help-copy p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
  margin: 0;
  max-width: 56ch;
}

.page-contact .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .help-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .help-index li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  background: var(--paper);
  border-left: 4px solid var(--sand);
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--ink);
}

.page-contact .help-index li:nth-child(2) {
  border-left-color: var(--deep-2);
}

.page-contact .help-index li:nth-child(3) {
  border-left-color: var(--deep);
}

.page-contact .help-index li:nth-child(4) {
  border-left-color: var(--red);
}

.page-contact .idx {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--red);
  flex: none;
}

/* ---------- 合作咨询 ---------- */
.page-contact .cooperation {
  padding: clamp(40px, 6vw, 76px) 0 0;
}

.page-contact .coop-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-contact .coop-item {
  background: var(--paper-2);
  border: var(--pc-edge);
  box-shadow: var(--pc-shadow);
}

.page-contact .coop-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16.5px;
  letter-spacing: -.008em;
  transition: background .22s var(--ease), color .22s var(--ease);
}

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

.page-contact .coop-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  color: var(--red);
  transition: transform .24s var(--ease);
}

.page-contact .coop-item[open] summary {
  background: var(--deep);
  color: var(--paper);
  border-bottom: var(--pc-edge);
}

.page-contact .coop-item[open] summary::after {
  content: "–";
  color: var(--sand);
}

.page-contact .coop-item summary:hover {
  background: var(--sand-2);
}

.page-contact .coop-item[open] summary:hover {
  background: var(--deep);
}

.page-contact .coop-body {
  padding: 18px 20px 22px;
}

.page-contact .coop-topic {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0 0 12px;
}

.page-contact .coop-topic code {
  font-family: var(--font-body);
  font-size: 13.5px;
  background: var(--sand-2);
  color: var(--ink);
  padding: 3px 8px;
  border-left: 3px solid var(--deep);
  word-break: break-all;
}

.page-contact .coop-materials {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.72;
  color: #2b2722;
}

.page-contact .coop-materials li::marker {
  color: var(--red);
}

.page-contact .coop-foot {
  margin: 24px 0 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  padding-top: 18px;
  border-top: 2px solid var(--ink);
}

.page-contact .coop-mail {
  font-weight: 600;
  color: var(--deep);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  }

  .page-contact .help-inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }
}

@media (min-width: 900px) {
  .page-contact .hero-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-contact .region-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-contact .coop-list {
    gap: 16px;
  }
}

@media (max-width: 560px) {
  .page-contact .channel-card {
    padding: 18px 16px 18px 20px;
  }

  .page-contact .status-panel {
    padding: 20px 18px 16px;
  }

  .page-contact .help-inner {
    box-shadow: 6px 6px 0 var(--sand);
  }
}