.page-contact {
  --contact-rule: 1px solid var(--line);
  position: relative;
  overflow-x: clip;
  background:
    linear-gradient(180deg, rgba(11, 36, 24, .62) 0%, rgba(4, 18, 12, 0) 360px);
}

.page-contact .breadcrumb {
  padding-top: clamp(20px, 3vw, 36px);
}

/* ── 首屏标题 ───────────────────────────────── */
.page-contact .contact-mast {
  padding-top: clamp(22px, 3.6vw, 48px);
  padding-bottom: clamp(26px, 4.4vw, 56px);
}

.page-contact .contact-mast h1 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(36px, 7vw, 82px);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--ink);
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-contact .contact-mast__lede {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ── 顶部通栏氛围图 ─────────────────────────── */
.page-contact .contact-banner {
  position: relative;
  margin: 0;
  border-top: var(--contact-rule);
  border-bottom: var(--contact-rule);
  background: var(--bg-1);
  overflow: hidden;
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: clamp(148px, 22vw, 300px);
  object-fit: cover;
  object-position: center 62%;
  opacity: .5;
  filter: saturate(.62) contrast(1.06);
}

.page-contact .contact-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(4, 18, 12, .38) 0%, rgba(4, 18, 12, .93) 100%),
    repeating-linear-gradient(90deg, transparent 0 127px, rgba(0, 229, 200, .07) 127px 128px);
}

/* ── 信息板：来意 + 联系方式 ────────────────── */
.page-contact .contact-board {
  padding-top: clamp(40px, 6.5vw, 88px);
  padding-bottom: clamp(40px, 6.5vw, 88px);
}

.page-contact .contact-board h2,
.page-contact .contact-fields h2,
.page-contact .contact-coop h2,
.page-contact .contact-flow h2 {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(25px, 3.4vw, 42px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-contact .intent-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: var(--contact-rule);
}

.page-contact .intent {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 18px 16px 18px 14px;
  border-bottom: var(--contact-rule);
  border-left: 2px solid transparent;
  outline: none;
  transition: border-left-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .intent:hover,
.page-contact .intent:focus-visible {
  border-left-color: var(--accent);
  background: rgba(0, 229, 200, .05);
}

.page-contact .intent:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.page-contact .intent__idx {
  grid-row: 1 / span 3;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink-2);
  transition: color var(--dur) var(--ease);
}

.page-contact .intent:hover .intent__idx,
.page-contact .intent:focus-visible .intent__idx {
  color: var(--accent);
}

.page-contact .intent__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-contact .intent__desc {
  margin: 3px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .intent__hint {
  margin: 9px 0 0;
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: .03em;
  color: var(--ink-2);
  opacity: .7;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .intent:hover .intent__hint,
.page-contact .intent:focus-visible .intent__hint {
  opacity: 1;
  color: var(--accent-soft);
}

.page-contact .intent-list + .micro {
  margin-top: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* 联系方式面板 */
.page-contact .reach {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.4vw, 42px);
  border: var(--contact-rule);
  background:
    linear-gradient(165deg, rgba(28, 81, 54, .4) 0%, rgba(11, 36, 24, .92) 55%, rgba(4, 18, 12, .97) 100%);
}

.page-contact .reach::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 72px;
  height: 72px;
  border-left: var(--contact-rule);
  border-bottom: var(--contact-rule);
  border-bottom-left-radius: 72px;
  pointer-events: none;
}

.page-contact .reach__mail {
  display: inline-block;
  margin: 12px 0 0 -4px;
  padding: 2px 4px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 2.5vw, 30px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--accent);
  word-break: break-all;
  user-select: all;
  -webkit-user-select: all;
  cursor: text;
  outline: none;
  transition: background var(--dur) var(--ease);
}

.page-contact .reach__mail:hover {
  background: rgba(0, 229, 200, .08);
}

.page-contact .reach__mail:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  background: rgba(0, 229, 200, .1);
}

.page-contact .reach__mail-note {
  display: block;
  margin-top: 14px;
  max-width: 46ch;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .reach__rows {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  border-top: var(--contact-rule);
}

.page-contact .reach__row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 6px 18px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: var(--contact-rule);
}

.page-contact .reach__row dt {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-2);
}

.page-contact .reach__row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .reach__phone {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  outline: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .reach__phone:hover,
.page-contact .reach__phone:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-contact .reach__phone:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

/* ── 纠错字段清单 ───────────────────────────── */
.page-contact .contact-fields {
  padding-top: clamp(40px, 6.5vw, 88px);
  padding-bottom: clamp(40px, 6.5vw, 88px);
}

.page-contact .contact-fields__lede {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .field-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: var(--contact-rule);
}

.page-contact .field {
  border-bottom: var(--contact-rule);
}

.page-contact .field__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 4px 14px 0;
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-left-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-contact .field__label:hover {
  background: rgba(0, 229, 200, .04);
  border-left-color: var(--accent-soft);
  padding-left: 10px;
}

.page-contact .field__label:has(.field__input:checked) {
  border-left-color: var(--lime);
}

.page-contact .field__input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin: 5px 0 0;
  border: var(--contact-rule);
  background: var(--bg-0);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .field__input::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 4px;
  height: 8px;
  border-right: 2px solid var(--bg-0);
  border-bottom: 2px solid var(--bg-0);
  transform: rotate(45deg) scale(0);
  transform-origin: center;
  transition: transform var(--dur) var(--ease);
}

.page-contact .field__input:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.page-contact .field__input:checked::after {
  transform: rotate(45deg) scale(1);
}

.page-contact .field__input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.page-contact .field__body {
  display: grid;
  gap: 4px;
}

.page-contact .field__name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-contact .field__name::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--accent);
  transform: translateY(-1px);
}

.page-contact .field__desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .field-list + .micro {
  display: block;
  margin-top: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* 场边记录特写 */
.page-contact .contact-figure {
  margin: 0;
}

.page-contact .contact-figure__frame {
  position: relative;
  overflow: hidden;
  border: var(--contact-rule);
  background: var(--bg-1);
}

.page-contact .contact-figure__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.78) contrast(1.04);
}

.page-contact .contact-figure__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 18, 12, .1) 0%, rgba(4, 18, 12, .74) 100%);
}

.page-contact .contact-figure figcaption {
  margin-top: 12px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ── 合作与线索 ─────────────────────────────── */
.page-contact .contact-coop {
  padding-top: clamp(40px, 6.5vw, 88px);
  padding-bottom: clamp(40px, 6.5vw, 88px);
}

.page-contact .contact-coop__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .coop-grid {
  margin-top: clamp(26px, 3.6vw, 44px);
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 30px);
}

.page-contact .coop-card__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--accent);
}

.page-contact .coop-card__name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .coop-card__list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: var(--contact-rule);
  display: grid;
  gap: 10px;
}

.page-contact .coop-card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-contact .coop-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 12px;
  height: 1px;
  background: var(--accent-soft);
}

.page-contact .contact-coop__note {
  display: block;
  margin-top: clamp(24px, 3vw, 34px);
  max-width: 74ch;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .contact-coop__note a {
  color: var(--accent-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 243, 228, .3);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .contact-coop__note a:hover,
.page-contact .contact-coop__note a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
  outline: none;
}

/* ── 处理流程 ───────────────────────────────── */
.page-contact .contact-flow {
  padding-top: clamp(40px, 6.5vw, 88px);
  padding-bottom: clamp(20px, 3vw, 40px);
}

.page-contact .flow-list {
  list-style: none;
  margin: clamp(26px, 3.6vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: var(--contact-rule);
}

.page-contact .flow {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 2px 16px;
  padding: 22px 0;
  border-bottom: var(--contact-rule);
}

.page-contact .flow__idx {
  grid-row: 1 / span 2;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--line);
}

.page-contact .flow__name {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-contact .flow__desc {
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-contact .flow__desc a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 200, .35);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .flow__desc a:hover,
.page-contact .flow__desc a:focus-visible {
  border-bottom-color: var(--accent);
}

.page-contact .flow-note {
  display: block;
  margin-top: 20px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ── 底部信息带 ─────────────────────────────── */
.page-contact .contact-strip {
  position: relative;
  margin-top: clamp(44px, 6.5vw, 92px);
  border-top: var(--contact-rule);
  border-bottom: var(--contact-rule);
  background: var(--bg-1);
  overflow: hidden;
}

.page-contact .contact-strip::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent) 0%, rgba(0, 229, 200, 0) 48%);
  opacity: .55;
}

.page-contact .contact-strip__inner {
  padding: clamp(28px, 4vw, 48px) 0;
  display: grid;
  gap: 18px;
}

.page-contact .contact-strip__text {
  margin: 0;
  max-width: 72ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .contact-strip__meta {
  color: var(--ink-2);
  letter-spacing: .08em;
  line-height: 1.9;
}

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

.page-contact .contact-strip__meta a:hover,
.page-contact .contact-strip__meta a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-contact .contact-strip__meta a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ── 桌面端：错位卡片堆与四列流程 ───────────── */
@media (min-width: 880px) {
  .page-contact .coop-card:nth-child(1) {
    transform: translateY(6px);
  }

  .page-contact .coop-card:nth-child(2) {
    transform: translateY(-16px);
  }

  .page-contact .coop-card:nth-child(3) {
    transform: translateY(14px);
    border-color: rgba(0, 229, 200, .38);
  }

  .page-contact .coop-card:nth-child(1):hover {
    transform: translateY(4px);
  }

  .page-contact .coop-card:nth-child(2):hover {
    transform: translateY(-18px);
  }

  .page-contact .coop-card:nth-child(3):hover {
    transform: translateY(12px);
  }

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

  .page-contact .flow {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 26px 24px 26px 24px;
    border-bottom: none;
    border-left: var(--contact-rule);
  }

  .page-contact .flow:first-child {
    border-left: none;
    padding-left: 0;
  }

  .page-contact .flow__idx {
    grid-row: auto;
    padding-top: 0;
    font-size: 22px;
  }
}

/* ── 窄屏微调 ───────────────────────────────── */
@media (max-width: 640px) {
  .page-contact .intent {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 3px 10px;
    padding-right: 8px;
  }

  .page-contact .reach__row {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .page-contact .flow {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .page-contact .contact-banner img {
    height: 148px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .intent,
  .page-contact .field__label,
  .page-contact .field__input,
  .page-contact .field__input::after,
  .page-contact .reach__mail,
  .page-contact .reach__phone,
  .page-contact .coop-card,
  .page-contact .contact-strip__meta a {
    transition-duration: .001ms;
  }
}