.page-contact {
  --cp-gap-xl: clamp(72px, 9vw, 144px);
  --cp-pad-inline: clamp(18px, 4vw, 56px);
  background: var(--bg);
  color: var(--ink);
  padding-block: clamp(24px, 4vw, 64px) clamp(80px, 10vw, 150px);
  padding-inline: var(--cp-pad-inline);
  overflow-x: clip;
}

.page-contact > section {
  max-width: var(--shell-max);
  margin-inline: auto;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: center;
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 36px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--line);
}

.page-contact .breadcrumb a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: start;
}

.page-contact .stage-lead {
  align-self: center;
}

.page-contact .stage-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--autumn);
}

.page-contact .stage-kicker::before {
  content: "";
  display: block;
  width: 30px;
  height: 3px;
  background: var(--grad-seasons);
}

.page-contact .stage-title {
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  font-size: clamp(36px, 7.4vw, 88px);
  font-weight: 200;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .stage-lede {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 联系信息板 ---------- */
.page-contact .contact-board {
  position: relative;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: 8px 8px 0 var(--line);
}

.page-contact .board-flag {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 3;
  width: clamp(88px, 16%, 156px);
  height: 10px;
  background: var(--grad-seasons);
  clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .board-media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--panel-2);
  border-bottom: 2px solid var(--line);
}

.page-contact .board-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.68) saturate(0.85) contrast(1.05);
}

.page-contact .board-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad-glow);
  pointer-events: none;
}

.page-contact .board-body {
  padding: clamp(20px, 2.6vw, 32px);
}

.page-contact .board-id {
  padding-bottom: clamp(16px, 2vw, 22px);
  margin-bottom: clamp(16px, 2vw, 22px);
  border-bottom: 1px solid var(--line);
}

.page-contact .board-id-kicker {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--spring);
}

.page-contact .board-id-value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.3vw, 25px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .board-id-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-contact .board-title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink-2);
}

.page-contact .board-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .board-row {
  padding: clamp(14px, 1.8vw, 20px) 0;
  border-top: 1px dashed var(--line);
}

.page-contact .board-row:first-child {
  border-top: 0;
  padding-top: clamp(10px, 1.4vw, 14px);
}

.page-contact .board-rowtop {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 7px;
}

.page-contact .board-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.page-contact .copy-btn {
  appearance: none;
  min-height: 28px;
  padding: 4px 11px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--winter);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .copy-btn:hover {
  border-color: var(--winter);
  background: rgba(76, 141, 255, 0.08);
}

.page-contact .copy-btn[data-copy-state="done"],
.page-contact .copy-btn[data-copy-state="copied"] {
  color: var(--spring);
  border-color: var(--spring);
  background: rgba(43, 224, 138, 0.1);
}

.page-contact .board-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .board-value--address {
  font-family: var(--font-body);
  font-size: clamp(16px, 2vw, 21px);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.page-contact .board-note {
  margin: 7px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-contact .board-hours {
  margin: clamp(14px, 2vw, 20px) 0 0;
  padding-top: clamp(12px, 1.6vw, 18px);
  border-top: 2px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

/* ---------- 咨询分类 ---------- */
.page-contact .contact-topics {
  margin-top: var(--cp-gap-xl);
}

.page-contact .topics-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .topics-kicker,
.page-contact .timing-kicker {
  display: inline-block;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--winter);
}

.page-contact .topics-title,
.page-contact .timing-title {
  margin: 0 0 14px;
  font-size: clamp(25px, 3.6vw, 44px);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .topics-lede {
  margin: 0;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .qa-list {
  border-top: 2px solid var(--line);
}

.page-contact .qa-item {
  border-bottom: 1px solid var(--line);
}

.page-contact .qa-summary {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(16px, 2vw, 22px) clamp(6px, 1vw, 14px);
  cursor: pointer;
  list-style: none;
  transition: background var(--dur) var(--ease);
}

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

.page-contact .qa-summary:hover {
  background: var(--panel);
}

.page-contact .qa-num {
  flex: 0 0 auto;
  width: 34px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--autumn);
  font-variant-numeric: tabular-nums;
}

.page-contact .qa-text {
  flex: 1 1 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  min-width: 0;
}

.page-contact .qa-name {
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 500;
  color: var(--ink);
}

.page-contact .qa-hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
}

.page-contact .qa-summary::after {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--ink-3);
  border-bottom: 2px solid var(--ink-3);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .qa-item[open] .qa-summary::after {
  transform: rotate(-135deg);
  border-color: var(--winter);
}

.page-contact .qa-body {
  padding: 0 clamp(6px, 1vw, 14px) clamp(20px, 2.6vw, 30px) clamp(48px, 6vw, 62px);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .qa-body p {
  margin: 0 0 12px;
}

.page-contact .qa-body ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .qa-body li {
  position: relative;
  padding-left: 18px;
}

.page-contact .qa-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--winter);
}

.page-contact .qa-more {
  margin: 14px 0 0;
}

.page-contact .qa-more a {
  color: var(--winter);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  font-size: 13px;
}

/* ---------- 响应节奏 ---------- */
.page-contact .contact-timing {
  margin-top: var(--cp-gap-xl);
  padding-top: clamp(28px, 4vw, 48px);
  border-top: 2px solid var(--line);
}

.page-contact .timing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(24px, 3vw, 38px);
}

.page-contact .timing-card {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(18px, 2.2vw, 26px);
  padding-top: clamp(24px, 2.8vw, 32px);
  background: var(--panel);
  border: 2px solid var(--line);
}

.page-contact .timing-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--accent, var(--winter));
}

.page-contact .timing-card--spring { --accent: var(--spring); }
.page-contact .timing-card--autumn { --accent: var(--autumn); }
.page-contact .timing-card--summer { --accent: var(--summer); }
.page-contact .timing-card--winter { --accent: var(--winter); }

.page-contact .timing-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent, var(--winter));
}

.page-contact .timing-figure {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-contact .timing-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-contact .timing-hours {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: clamp(16px, 2vw, 22px) clamp(18px, 2.2vw, 26px);
  background: var(--panel-2);
  border: 2px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .timing-hours strong {
  color: var(--ink);
  font-weight: 500;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 合作与内容支持 ---------- */
.page-contact .contact-partners {
  margin-top: var(--cp-gap-xl);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-contact .partners-media {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: 8px 8px 0 var(--line);
}

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

.page-contact .partners-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 11, 20, 0) 42%, rgba(7, 11, 20, 0.6) 100%);
}

.page-contact .partners-title {
  margin: 0 0 16px;
  font-size: clamp(23px, 3.2vw, 40px);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .partners-text {
  margin: 0 0 22px;
  max-width: 56ch;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .partners-list {
  list-style: none;
  display: grid;
  gap: 11px;
  margin: 0 0 28px;
  padding: 0;
}

.page-contact .partners-list li {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-contact .partners-list li::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  margin-top: 0.62em;
  background: var(--spring);
}

.page-contact .partners-list li:nth-child(2)::before { background: var(--autumn); }
.page-contact .partners-list li:nth-child(3)::before { background: var(--summer); }

/* ---------- 收尾 ---------- */
.page-contact .contact-cta {
  margin-top: var(--cp-gap-xl);
  padding-top: clamp(28px, 4vw, 48px);
  border-top: 2px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
}

.page-contact .cta-text {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .contact-cta .btn {
  flex: 0 0 auto;
}

.page-contact .cta-note {
  flex: 1 0 100%;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.page-contact .cta-note a {
  color: var(--winter);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 断点 ---------- */
@media (max-width: 620px) {
  .page-contact .board-media {
    aspect-ratio: 4 / 3;
  }

  .page-contact .qa-body {
    padding-left: clamp(6px, 1vw, 14px);
  }

  .page-contact .partners-media {
    box-shadow: 5px 5px 0 var(--line);
  }

  .page-contact .contact-board {
    box-shadow: 5px 5px 0 var(--line);
  }
}

@media (min-width: 720px) {
  .page-contact .timing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .contact-stage {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(40px, 6vw, 92px);
  }

  .page-contact .contact-partners {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }

  .page-contact .partners-media {
    align-self: stretch;
    aspect-ratio: auto;
    min-height: 320px;
  }
}

@media (min-width: 1100px) {
  .page-contact .timing-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}