.page-contact {
  padding-block: clamp(1.25rem, 3vw, 2.25rem) clamp(3rem, 6vw, 5.5rem);
}

.page-contact .contact-crumb {
  margin-bottom: clamp(1rem, 2.5vw, 1.75rem);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding: clamp(1.25rem, 3.2vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(39, 199, 255, 0.10), transparent 55%),
    radial-gradient(90% 80% at 100% 100%, rgba(182, 255, 60, 0.08), transparent 60%),
    var(--panel);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.32;
  pointer-events: none;
}

.page-contact .hero-main,
.page-contact .status-rail {
  position: relative;
  z-index: 1;
}

.page-contact .hero-main h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.005em;
  margin: 0.35rem 0 0.9rem;
  color: var(--ink);
}

.page-contact .hero-main .lede {
  max-width: 46ch;
  color: var(--ink);
  opacity: 0.86;
  margin: 0 0 1rem;
}

.page-contact .hero-meta {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  padding-top: 0.9rem;
  border-top: 1px dashed var(--line);
  margin: 0 0 1.25rem;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ---------- 右侧状态栏 ---------- */
.page-contact .status-rail {
  display: grid;
  gap: 0.9rem;
  align-content: start;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(17, 26, 36, 0.88);
}

.page-contact .rail-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
}

.page-contact .rail-row {
  display: grid;
  gap: 0.25rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}

.page-contact .rail-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .rail-row dt {
  font-family: var(--font-mono);
  font-size: var(--step-label);
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .rail-row dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .rail-mail {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) ease;
}

.page-contact .rail-mail:hover,
.page-contact .rail-mail:focus-visible {
  border-bottom-color: var(--blue);
}

.page-contact .rail-time {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.15rem;
  color: var(--green);
}

.page-contact .rail-tag {
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--bg);
  background: var(--green);
  border-radius: var(--radius-pill);
  padding: 0.1rem 0.5rem;
}

.page-contact .rail-btn {
  width: 100%;
  text-align: center;
  justify-content: center;
}

/* ---------- 图 ---------- */
.page-contact .contact-figure {
  margin: clamp(1.25rem, 3vw, 2rem) 0 0.6rem;
}

.page-contact .contact-figure img,
.page-contact .channels-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel-2);
}

.page-contact .figure-caption {
  margin: 0 0 clamp(2rem, 5vw, 3.5rem);
  font-size: 0.78rem;
  color: var(--muted);
}

/* ---------- 请求分流 ---------- */
.page-contact .split {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-contact .split-head,
.page-contact .prep-head,
.page-contact .scope-head {
  max-width: 62ch;
  margin-bottom: 1.35rem;
}

.page-contact .split-head p,
.page-contact .prep-head p,
.page-contact .scope-head p {
  color: var(--muted);
  margin: 0.5rem 0 0;
}

.page-contact .req-switch {
  position: relative;
}

.page-contact .req-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.page-contact .req-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.page-contact .req-card {
  display: grid;
  gap: 0.4rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  cursor: pointer;
  transition: border-color var(--dur) ease, background-color var(--dur) ease, transform var(--dur) ease;
}

.page-contact .req-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}

.page-contact .req-no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .req-name {
  font-family: var(--font-display);
  font-size: var(--step-h3);
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-contact .req-desc {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .req-tag {
  justify-self: start;
  margin-top: 0.15rem;
}

.page-contact #req-migrate:checked ~ .req-cards .req-card[for="req-migrate"],
.page-contact #req-migrate:focus-visible ~ .req-cards .req-card[for="req-migrate"],
.page-contact #req-fix:checked ~ .req-cards .req-card[for="req-fix"],
.page-contact #req-fix:focus-visible ~ .req-cards .req-card[for="req-fix"],
.page-contact #req-export:checked ~ .req-cards .req-card[for="req-export"],
.page-contact #req-export:focus-visible ~ .req-cards .req-card[for="req-export"] {
  border-color: var(--green);
  background: var(--green-deep);
  box-shadow: inset 0 0 0 1px var(--green);
}

.page-contact #req-migrate:checked ~ .req-cards .req-card[for="req-migrate"] .req-no,
.page-contact #req-fix:checked ~ .req-cards .req-card[for="req-fix"] .req-no,
.page-contact #req-export:checked ~ .req-cards .req-card[for="req-export"] .req-no {
  color: var(--green);
}

.page-contact .req-panel {
  display: none;
  gap: 1.25rem;
  padding: clamp(1.1rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel-2);
}

.page-contact #req-migrate:checked ~ .req-panels .req-panel--migrate,
.page-contact #req-fix:checked ~ .req-panels .req-panel--fix,
.page-contact #req-export:checked ~ .req-panels .req-panel--export {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .req-panel h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--blue);
  margin: 0 0 0.6rem;
}

.page-contact .req-panel p {
  margin: 0 0 0.7rem;
  color: var(--ink);
  opacity: 0.88;
  font-size: 0.9rem;
}

.page-contact .panel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-contact .panel-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink);
  opacity: 0.85;
}

.page-contact .panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.45rem;
  height: 2px;
  background: var(--green);
  border-radius: 2px;
}

.page-contact .panel-tip {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--blue);
  background: rgba(39, 199, 255, 0.08);
  border-left: 2px solid var(--blue);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 0.5rem 0.75rem;
  word-break: break-word;
}

.page-contact .panel-btn {
  margin-top: 0.4rem;
}

/* ---------- 渠道建议 ---------- */
.page-contact .channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-contact .channels-copy p {
  color: var(--muted);
  margin: 0 0 0.85rem;
  max-width: 54ch;
}

.page-contact .mail-template {
  margin: 1.1rem 0 1.2rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
}

.page-contact .template-label {
  margin: 0 0 0.55rem;
  color: var(--muted);
}

.page-contact .template-body {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
  margin: 0 0 0.35rem;
  word-break: break-word;
}

.page-contact .template-body:last-child {
  margin-bottom: 0;
}

.page-contact .channels-figure {
  margin: 0;
}

/* ---------- 提交清单 ---------- */
.page-contact .prep {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.65rem;
}

.page-contact .prep-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: border-color var(--dur) ease;
}

.page-contact .prep-item:hover {
  border-color: var(--blue);
}

.page-contact .prep-item input[type="checkbox"] {
  flex: 0 0 auto;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: 0.22rem;
  accent-color: var(--green);
  cursor: pointer;
}

.page-contact .prep-item strong {
  color: var(--ink);
  font-weight: 600;
}

.page-contact .prep-item input:checked + span {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--green);
}

/* ---------- 地址 ---------- */
.page-contact .address {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-contact .addr-card {
  position: relative;
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background-color: var(--panel);
  background-image:
    repeating-linear-gradient(0deg, transparent 0 27px, var(--line) 27px 28px),
    repeating-linear-gradient(90deg, transparent 0 27px, var(--line) 27px 28px);
  background-size: 28px 28px;
  overflow: hidden;
}

.page-contact .addr-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(14, 21, 29, 0.94), rgba(14, 21, 29, 0.7));
  pointer-events: none;
}

.page-contact .addr-card > * {
  position: relative;
  z-index: 1;
}

.page-contact .addr-line {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  color: var(--green);
  letter-spacing: 0.02em;
  margin: 0.4rem 0 0.9rem;
  word-break: break-word;
}

.page-contact .addr-note {
  max-width: 58ch;
  color: var(--ink);
  opacity: 0.86;
  margin: 0 0 1.1rem;
}

.page-contact .addr-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.page-contact .addr-meta .num {
  color: var(--blue);
}

/* ---------- 服务范围 ---------- */
.page-contact .scope {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-contact .scope-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.7rem;
}

.page-contact .scope-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.2rem 0.9rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  text-decoration: none;
  transition: border-color var(--dur) ease, background-color var(--dur) ease;
}

.page-contact .scope-link:hover,
.page-contact .scope-link:focus-visible {
  border-color: var(--green);
  background: var(--green-deep);
}

.page-contact .scope-no {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green);
  padding-top: 0.15rem;
}

.page-contact .scope-name {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink);
}

.page-contact .scope-desc {
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
    align-items: start;
  }

  .page-contact .req-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .req-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem;
  }

  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .scope-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .scope-link {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.35rem;
  }

  .page-contact .scope-no {
    grid-row: auto;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-contact .channels {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 2.5rem;
  }

  .page-contact .req-panel {
    padding: 2rem 2.25rem;
  }

  .page-contact .contact-hero {
    padding: 2.75rem 3rem;
  }

  .page-contact .addr-meta {
    gap: 0.75rem 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .req-card,
  .page-contact .prep-item,
  .page-contact .scope-link {
    transition: none;
  }

  .page-contact .req-card:hover {
    transform: none;
  }
}