.page-contact {
  --pc-tilt-a: -1.5deg;
  --pc-tilt-b: 0.8deg;
  --pc-tilt-c: -0.7deg;
  --pc-shadow: 0 24px 44px rgba(0, 0, 0, 0.34);
  --pc-shadow-soft: 0 14px 28px rgba(0, 0, 0, 0.24);
  position: relative;
  color: var(--paper);
  font-family: var(--font-body);
  background:
    radial-gradient(1100px 640px at 8% -10%, var(--neon-a10), transparent 62%),
    radial-gradient(820px 520px at 100% 26%, rgba(242, 193, 78, 0.06), transparent 66%),
    linear-gradient(180deg, var(--ink) 0%, var(--night) 46%, var(--ink) 100%);
  overflow-x: hidden;
}

.page-contact a {
  color: var(--neon);
  text-decoration: none;
  transition: color var(--d-fast) var(--ease);
}

.page-contact a:hover {
  color: var(--neon-soft);
}

.page-contact .t-section {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.2;
  margin: 0 0 16px;
}

.page-contact .t-lead {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.86;
  max-width: 40em;
  margin: 0 0 8px;
}

.page-contact .t-cap {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(40px, 7vw, 82px) clamp(30px, 4.5vw, 52px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -18%;
  width: 62%;
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 50% 50%, var(--neon-a22), transparent 62%);
  filter: blur(10px);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--turf-deep) 0 26px,
    var(--turf-mid) 26px 52px
  );
  opacity: 0.7;
}

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

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--muted);
  margin-bottom: 24px;
}

.page-contact .breadcrumb a {
  color: var(--muted);
}

.page-contact .breadcrumb a:hover {
  color: var(--neon);
}

.page-contact .breadcrumb span[aria-current] {
  color: var(--paper);
}

.page-contact .breadcrumb span[aria-hidden] {
  color: var(--turf-mid);
}

.page-contact .t-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--neon);
  background: var(--neon-a10);
  border: 1px solid var(--neon-a22);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  margin: 0 0 20px;
}

.page-contact .contact-hero h1.t-page {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: condensed;
  letter-spacing: -0.03em;
  font-size: clamp(2rem, 5.6vw, 3.9rem);
  line-height: 1.08;
  margin: 0 0 22px;
  max-width: 16em;
}

.page-contact .contact-hero .t-lead {
  max-width: 38em;
  font-size: 1.0625rem;
  opacity: 0.9;
  margin-bottom: 28px;
}

.page-contact .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 0;
}

/* ---------- 通道区 ---------- */
.page-contact .channel-section {
  position: relative;
  padding-block: clamp(36px, 5.5vw, 72px);
}

.page-contact .channel-banner {
  position: relative;
  margin: 30px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: clamp(150px, 24vw, 240px);
  border: 1px solid var(--line-strong);
}

.page-contact .channel-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
  filter: saturate(0.85) contrast(1.08);
}

.page-contact .channel-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 18, 14, 0.1) 0%, rgba(10, 35, 28, 0.94) 92%);
  pointer-events: none;
}

.page-contact .channel-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-top: 26px;
  padding-top: 16px;
}

.page-contact .channel-card {
  position: relative;
  padding: 30px 24px 26px;
  border-radius: var(--radius-lg);
  background: linear-gradient(168deg, rgba(29, 83, 67, 0.94) 0%, rgba(10, 35, 28, 0.98) 100%);
  border: 1px solid var(--line-strong);
  box-shadow: var(--pc-shadow);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: -11px;
  left: 26px;
  width: 46px;
  height: 12px;
  border-radius: 2px;
  background: var(--neon-a22);
  box-shadow: 0 0 14px var(--neon-a22);
}

.page-contact .channel-card--phone::before {
  background: rgba(242, 193, 78, 0.28);
  box-shadow: 0 0 14px rgba(242, 193, 78, 0.26);
}

.page-contact .channel-card--addr::before {
  background: rgba(238, 245, 241, 0.14);
  box-shadow: 0 0 14px rgba(238, 245, 241, 0.12);
}

.page-contact .channel-index {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 12px;
}

.page-contact .channel-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-contact .channel-addr {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--data-yellow);
  margin: 0 0 16px;
  word-break: break-word;
}

.page-contact .channel-addr a {
  color: var(--data-yellow);
  border-bottom: 1px dashed rgba(242, 193, 78, 0.45);
}

.page-contact .channel-addr a:hover {
  color: var(--neon-soft);
  border-bottom-color: var(--neon-soft);
}

.page-contact .channel-desc {
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--paper);
  opacity: 0.84;
  margin: 0 0 18px;
}

.page-contact .channel-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel-list li {
  position: relative;
  padding: 11px 0 11px 20px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon);
}

/* ---------- 邮件写法 ---------- */
.page-contact .mail-section {
  padding-block: clamp(38px, 6vw, 78px);
  background: linear-gradient(180deg, rgba(18, 54, 43, 0.55) 0%, rgba(10, 35, 28, 0.2) 100%);
}

.page-contact .mail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 10px;
}

.page-contact .mail-intro p {
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--paper);
  opacity: 0.86;
  margin: 0 0 16px;
}

.page-contact .mailcheck {
  background: var(--night);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 22px 20px 12px;
  box-shadow: var(--pc-shadow-soft);
}

.page-contact .mailcheck-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .mailcheck-head .num {
  font-size: 1.6rem;
  color: var(--data-yellow);
  font-weight: 700;
}

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

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

.page-contact .mailcheck-item:last-child {
  border-bottom: none;
}

.page-contact .mailcheck-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 2px;
  cursor: pointer;
  transition: background var(--d-fast) var(--ease);
  border-radius: var(--radius-sm);
}

.page-contact .mailcheck-label:hover {
  background: rgba(52, 227, 190, 0.05);
}

.page-contact .mailcheck-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .mailcheck-box {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 1.5px solid var(--turf-mid);
  border-radius: 5px;
  background: rgba(4, 18, 14, 0.6);
  position: relative;
  transition: border-color var(--d-fast) var(--ease), background var(--d-fast) var(--ease);
}

.page-contact .mailcheck-box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1.5px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg) scale(0);
  transform-origin: 60% 40%;
  transition: transform var(--d-fast) var(--ease);
}

.page-contact .mailcheck-input:checked + .mailcheck-box {
  background: var(--neon);
  border-color: var(--neon);
}

.page-contact .mailcheck-input:checked + .mailcheck-box::after {
  transform: rotate(42deg) scale(1);
}

.page-contact .mailcheck-input:focus-visible + .mailcheck-box {
  outline: 2px solid var(--neon-soft);
  outline-offset: 3px;
}

.page-contact .mailcheck-body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-contact .mailcheck-num {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-contact .mailcheck-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-contact .mailcheck-note {
  font-size: 0.85rem;
  line-height: 1.66;
  color: var(--muted);
}

/* ---------- 合作洽谈 ---------- */
.page-contact .coop-section {
  padding-block: clamp(38px, 6vw, 78px);
}

.page-contact .coop-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 12px;
}

.page-contact .coop-main > p {
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--paper);
  opacity: 0.86;
  margin: 0 0 22px;
  max-width: 42em;
}

.page-contact .coop-points {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  display: grid;
  gap: 2px;
}

.page-contact .coop-points li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .coop-num {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--neon-a10);
  border: 1px solid var(--neon-a22);
  color: var(--neon);
  font-size: 0.78rem;
}

.page-contact .coop-points strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--paper);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.page-contact .coop-points p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .coop-foot {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0;
}

.page-contact .coop-side {
  padding: 26px 22px;
  border-radius: var(--radius-lg);
  align-self: start;
}

.page-contact .coop-side-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--neon);
  margin: 0 0 10px;
}

.page-contact .coop-side-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 18px;
}

.page-contact .coop-side-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  counter-reset: none;
}

.page-contact .coop-side-list li {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--paper);
  opacity: 0.9;
}

.page-contact .coop-side-list .num {
  flex: 0 0 auto;
  color: var(--data-yellow);
  font-size: 0.82rem;
  padding-top: 3px;
}

.page-contact .coop-side-foot {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.66;
  color: var(--muted);
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
}

/* ---------- 回复流程 ---------- */
.page-contact .reply-section {
  padding-block: clamp(38px, 6vw, 78px);
  background:
    linear-gradient(180deg, rgba(10, 35, 28, 0.35) 0%, rgba(4, 18, 14, 0.5) 100%);
}

.page-contact .reply-steps {
  list-style: none;
  padding: 0 0 0 30px;
  margin: 34px 0 0;
  position: relative;
  border-left: 2px solid var(--neon-a22);
}

.page-contact .reply-steps li {
  position: relative;
  padding: 0 0 32px 6px;
}

.page-contact .reply-steps li:last-child {
  padding-bottom: 0;
}

.page-contact .reply-steps li::before {
  content: "";
  position: absolute;
  left: -39px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px var(--ink), 0 0 16px var(--neon-a38);
}

.page-contact .reply-step-tag {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--data-yellow);
  margin-bottom: 8px;
}

.page-contact .reply-step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-contact .reply-steps li p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 44em;
}

/* ---------- 站点信息 ---------- */
.page-contact .address-section {
  padding-block: clamp(38px, 6vw, 82px) clamp(52px, 7vw, 96px);
}

.page-contact .address-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--pc-shadow);
  background: linear-gradient(165deg, rgba(18, 54, 43, 0.96) 0%, rgba(10, 35, 28, 0.99) 100%);
  margin-top: 10px;
}

.page-contact .address-figure {
  position: relative;
  margin: 0;
  min-height: 180px;
  overflow: hidden;
}

.page-contact .address-figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  opacity: 0.62;
}

.page-contact .address-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 18, 14, 0.08) 0%, rgba(10, 35, 28, 0.86) 100%);
  pointer-events: none;
}

.page-contact .address-body {
  padding: 28px 22px 30px;
}

.page-contact .address-body > p {
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--paper);
  opacity: 0.84;
  margin: 0 0 22px;
  max-width: 40em;
}

.page-contact .address-list {
  margin: 0 0 22px;
  border-top: 1px solid var(--line-strong);
}

.page-contact .address-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .address-row dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--neon);
}

.page-contact .address-row dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .address-value.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-contact .address-value a {
  color: var(--neon);
  border-bottom: 1px dashed var(--neon-a38);
}

.page-contact .address-value a:hover {
  color: var(--neon-soft);
  border-bottom-color: var(--neon-soft);
}

.page-contact .address-note {
  font-size: 0.82rem;
  line-height: 1.68;
  color: var(--muted);
  padding: 14px 0 0;
  border-top: 1px solid var(--line-strong);
  margin: 0 0 18px;
}

.page-contact .address-links {
  font-size: 0.875rem;
  line-height: 1.74;
  color: var(--muted);
  margin: 0;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-contact .channel-board {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-top: 22px;
  }

  .page-contact .channel-card--mail {
    transform: rotate(var(--pc-tilt-a));
  }

  .page-contact .channel-card--phone {
    transform: rotate(var(--pc-tilt-b)) translateY(14px);
  }

  .page-contact .channel-card--addr {
    transform: rotate(var(--pc-tilt-c));
  }

  .page-contact .channel-card {
    transition: transform var(--d-fast) var(--ease), border-color var(--d-fast) var(--ease), box-shadow var(--d-fast) var(--ease);
  }

  .page-contact .channel-card:hover {
    transform: rotate(0deg) translateY(-4px);
    border-color: var(--neon-a38);
    box-shadow: 0 28px 52px rgba(0, 0, 0, 0.4);
  }

  .page-contact .coop-layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 40px;
  }

  .page-contact .address-panel {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: stretch;
  }

  .page-contact .address-figure {
    min-height: 100%;
  }

  .page-contact .address-figure img {
    min-height: 100%;
    height: 100%;
  }

  .page-contact .address-body {
    padding: 36px 34px 38px;
  }

  .page-contact .address-row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .address-row dt {
    padding-top: 3px;
  }
}

@media (min-width: 1080px) {
  .page-contact .mail-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .mailcheck {
    padding: 26px 26px 14px;
  }

  .page-contact .reply-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0 26px;
    padding: 0;
    border-left: none;
    border-top: 2px solid var(--neon-a22);
  }

  .page-contact .reply-steps li {
    padding: 28px 0 0;
  }

  .page-contact .reply-steps li::before {
    left: 0;
    top: -7px;
  }
}

@media (max-width: 420px) {
  .page-contact .channel-card {
    padding: 26px 18px 22px;
  }

  .page-contact .address-body {
    padding: 24px 16px 26px;
  }

  .page-contact .mailcheck {
    padding: 18px 14px 10px;
  }
}