.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  padding: 32px 0 60px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: -2%;
  right: -2%;
  bottom: 1px;
  height: 4px;
  background: var(--lime);
  transform: rotate(-0.9deg);
  transform-origin: left center;
}

.page-contact .hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  max-width: none;
}

.page-contact .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(118deg, rgba(6, 17, 14, 0.96) 0%, rgba(6, 17, 14, 0.88) 54%, rgba(12, 31, 25, 0.9) 100%),
    radial-gradient(circle at 82% 18%, rgba(198, 255, 61, 0.12), transparent 58%);
}

.page-contact .hero-inner {
  position: relative;
  z-index: 1;
}

.page-contact .crumbs ol {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--ash);
}

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

.page-contact .crumbs a {
  color: var(--ash);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

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

.page-contact .crumbs li[aria-current="page"] {
  color: var(--mist);
}

.page-contact .hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ash);
}

.page-contact .hero-eyebrow .dot {
  width: 8px;
  height: 8px;
  background: var(--lime);
  display: inline-block;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .hero-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-size: clamp(30px, 7vw, 56px);
  color: var(--white);
  max-width: 15em;
}

.page-contact .hero-lead {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .hero-tags {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .hero-tags li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
  border: 1px solid rgba(198, 255, 61, 0.4);
  border-radius: 999px;
  padding: 5px 12px;
}

/* —— 对开版式 —— */
.page-contact .contact-body {
  display: grid;
  gap: 36px;
  padding-top: 44px;
  padding-bottom: 0;
}

/* —— 左侧信息板 —— */
.page-contact .contact-board {
  position: relative;
  display: grid;
  gap: 20px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(158deg, rgba(18, 51, 41, 0.74) 0%, rgba(12, 31, 25, 0.94) 62%, rgba(6, 17, 14, 0.96) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-contact .contact-board::before {
  content: "";
  position: absolute;
  top: 0;
  left: 18px;
  width: 8px;
  height: 8px;
  background: var(--lime);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.page-contact .board-figure {
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--raise);
}

.page-contact .board-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-contact .board-block + .board-block {
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .board-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ash);
}

.page-contact .board-value {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(15px, 4vw, 18px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .board-value--text {
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0;
}

.page-contact .board-value--sm {
  font-size: 15px;
  color: var(--mist);
}

.page-contact .board-note {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ash);
}

/* —— 右侧长列 —— */
.page-contact .contact-flow {
  min-width: 0;
}

.page-contact .chapter {
  margin-bottom: 64px;
}

.page-contact .chapter-head {
  margin-bottom: 22px;
}

.page-contact .chapter-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
}

.page-contact .chapter-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 12px;
  color: var(--lime);
  background: var(--raise);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 3px 8px;
  letter-spacing: 0.04em;
}

.page-contact .chapter-kicker {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ash);
}

.page-contact .chapter-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
  font-size: clamp(22px, 5vw, 32px);
  color: var(--white);
}

.page-contact .chapter-lead {
  margin: 0 0 24px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .prose {
  max-width: 64ch;
}

.page-contact .prose p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .prose p:last-child {
  margin-bottom: 0;
}

/* —— 三条合作线：编号行条目，不用卡片 —— */
.page-contact .lane-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .lane {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  transition: border-color var(--t-fast);
}

.page-contact .lane:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .lane:hover {
  border-top-color: rgba(198, 255, 61, 0.5);
}

.page-contact .lane-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  color: var(--lime);
  padding-top: 5px;
}

.page-contact .lane-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .lane-desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 58ch;
}

.page-contact .lane-fit {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ash);
}

.page-contact .lane-more {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--lime);
  max-width: 56ch;
}

/* —— 渠道分工 —— */
.page-contact .channel-list {
  margin: 26px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .channel dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-contact .channel dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

/* —— 反馈清单 —— */
.page-contact .brief-list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .brief-list li {
  position: relative;
  padding: 14px 0 14px 26px;
  border-top: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .brief-list li:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .brief-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .brief-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 8px;
  height: 8px;
  background: var(--lime);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

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

.page-contact .template-intro {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ash);
}

.page-contact .template-block {
  margin: 0;
  padding: 18px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: var(--r-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--mist);
  -webkit-overflow-scrolling: touch;
}

.page-contact .template-block code {
  font-family: inherit;
  white-space: pre;
}

.page-contact .template-block:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* —— 响应节奏 —— */
.page-contact .pace-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 26px;
}

.page-contact .pace {
  background: linear-gradient(150deg, var(--panel) 0%, var(--ink) 100%);
  padding: 20px 18px;
}

.page-contact .pace-figure {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.01em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-contact .pace-text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ash);
}

/* —— 收尾青柠色横带 —— */
.page-contact .contact-signoff {
  position: relative;
  margin-top: 24px;
  padding: 54px 0 58px;
  background: var(--lime);
  color: var(--on-lime);
  overflow: hidden;
}

.page-contact .contact-signoff::before {
  content: "";
  position: absolute;
  left: -2%;
  right: -2%;
  top: 2px;
  height: 5px;
  background: var(--ink);
  transform: rotate(-0.8deg);
  transform-origin: left center;
}

.page-contact .signoff-inner {
  position: relative;
  z-index: 1;
}

.page-contact .signoff-eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(10, 21, 18, 0.72);
}

.page-contact .signoff-mail {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(19px, 5.4vw, 40px);
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--on-lime);
  overflow-wrap: anywhere;
}

.page-contact .signoff-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(10, 21, 18, 0.78);
}

.page-contact .flow-link {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ash);
}

.page-contact .flow-link a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.45);
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-contact .flow-link a:hover,
.page-contact .flow-link a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* —— 响应式 —— */
@media (min-width: 700px) {
  .page-contact .pace-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .lane {
    gap: 20px;
    padding: 28px 0;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 44px 0 84px;
  }

  .page-contact .contact-body {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: 64px;
    padding-top: 72px;
  }

  .page-contact .contact-board {
    position: sticky;
    top: calc(var(--head-h) + 22px);
    padding: 20px;
  }

  .page-contact .chapter {
    margin-bottom: 88px;
  }

  .page-contact .contact-signoff {
    margin-top: 48px;
    padding: 66px 0 70px;
  }
}

@media (hover: hover) and (min-width: 960px) {
  .page-contact .lane-more {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height var(--t-mid), opacity var(--t-fast), margin-top var(--t-mid);
  }

  .page-contact .lane:hover .lane-more,
  .page-contact .lane:focus-within .lane-more {
    max-height: 9em;
    margin-top: 12px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .lane,
  .page-contact .lane-more,
  .page-contact .flow-link a,
  .page-contact .crumbs a {
    transition: none;
  }
}