.page-contact {
  background: var(--ink-950);
  color: var(--paper-050);
}

.page-contact .page-contact__crumb {
  padding-block: 14px 0;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(20px, 4vw, 44px) clamp(36px, 6vw, 76px);
  background:
    radial-gradient(120% 90% at 88% 4%, var(--cyan-glow) 0%, transparent 58%),
    var(--ink-950);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: start;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 20px;
  font-size: clamp(2rem, 6.4vw, 4.3rem);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 17ch;
}

.page-contact .contact-hero .lede {
  max-width: 58ch;
  color: var(--mist-100);
}

.page-contact .contact-hero__go {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__focus {
  display: grid;
  gap: 10px;
  max-width: 360px;
  padding: 18px 20px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-soft);
  background: rgba(10, 22, 34, 0.78);
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-contact .contact-hero__focus p {
  margin: 0;
}

.page-contact .contact-hero__focus-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan-400);
}

.page-contact .contact-hero__focus .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal-500);
  box-shadow: 0 0 0 4px var(--signal-glow);
  animation: contact-pulse 2.4s ease-in-out infinite;
}

/* ---------- 左右分屏 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line-soft);
}

.page-contact .contact-aside {
  padding: clamp(28px, 5vw, 44px) var(--gutter);
  background:
    radial-gradient(90% 70% at 0% 0%, var(--signal-glow) 0%, transparent 62%),
    var(--ink-900);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-aside__title {
  margin: 10px 0 12px;
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-contact .contact-aside__intro {
  margin: 0 0 22px;
  max-width: 36ch;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-contact .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-list li {
  display: grid;
  gap: 5px;
  padding-top: 12px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .contact-list__key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist-300);
}

.page-contact .contact-list__value {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--paper-050);
  overflow-wrap: anywhere;
}

.page-contact .contact-aside__note {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-dark);
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--mist-300);
}

.page-contact .contact-main {
  padding: clamp(30px, 5vw, 56px) var(--gutter) clamp(48px, 7vw, 88px);
  background: var(--paper-050);
  color: var(--ink-900);
}

/* ---------- 内容块 ---------- */
.page-contact .contact-block {
  padding-block: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--line-light);
}

.page-contact .contact-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .contact-block__head {
  max-width: 56ch;
}

.page-contact .contact-main .index-label {
  color: var(--cyan-700);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-contact .contact-block__head h2 {
  margin: 10px 0 12px;
  font-size: clamp(1.45rem, 3.4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.22;
  color: var(--ink-900);
}

.page-contact .contact-block__head p:not(.index-label) {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--slate-600);
}

/* ---------- 标签页 ---------- */
.page-contact .contact-tabs {
  margin-top: 26px;
}

.page-contact .contact-tabs .tablist {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-light);
  scrollbar-width: none;
}

.page-contact .contact-tabs .tablist::-webkit-scrollbar {
  display: none;
}

.page-contact .contact-tabs .tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--slate-600);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .contact-tabs .tab:hover {
  color: var(--ink-900);
}

.page-contact .contact-tabs .tab[aria-selected="true"] {
  color: var(--cyan-700);
  border-bottom-color: var(--cyan-700);
}

.page-contact .contact-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan-700);
  outline-offset: -2px;
}

.page-contact .contact-tabs .tab__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--slate-600);
}

.page-contact .contact-tabs .tab[aria-selected="true"] .tab__num {
  color: var(--cyan-700);
}

.page-contact .contact-tabs .tabpanel {
  padding-top: 24px;
  outline: none;
  animation: contact-fade 0.18s var(--ease);
}

.page-contact .contact-tabs .tabpanel[hidden] {
  display: none;
}

.page-contact .contact-tabs .tabpanel:focus-visible {
  outline: 2px solid var(--cyan-700);
  outline-offset: 4px;
}

.page-contact .direction__for {
  margin: 0 0 14px;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-900);
}

.page-contact .direction__body {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--ink-800);
}

.page-contact .direction__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .direction__facts li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  align-items: start;
  padding-top: 12px;
  border-top: 1px solid var(--line-light);
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--ink-800);
}

.page-contact .direction__facts .mono {
  padding-top: 4px;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--cyan-700);
}

/* ---------- 图 ---------- */
.page-contact .contact-figure {
  margin: 24px 0 0;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-soft);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-figure .media__caption {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--mist-300);
  background: var(--ink-950);
}

/* ---------- 步骤 ---------- */
.page-contact .steps {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-contact .step {
  position: relative;
  padding: 0 0 26px 54px;
}

.page-contact .step:last-child {
  padding-bottom: 0;
}

.page-contact .step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--cyan-700);
  border-radius: var(--radius-pill);
  background: var(--paper-050);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--cyan-700);
}

.page-contact .step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 40px;
  bottom: 6px;
  width: 1px;
  background: var(--line-light);
}

.page-contact .step__body h3 {
  margin: 4px 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink-900);
}

.page-contact .step__body p {
  margin: 0 0 8px;
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--ink-800);
}

.page-contact .step__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan-700);
}

/* ---------- 材料清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
}

.page-contact .checkitem {
  position: relative;
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-light);
  cursor: pointer;
}

.page-contact .checkitem__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-contact .checkitem__mark {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  display: grid;
  place-items: center;
  border: 1px solid var(--slate-600);
  border-radius: 6px;
  font-size: 12px;
  line-height: 1;
  color: transparent;
  transition: background-color 0.16s var(--ease), border-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-contact .checkitem__mark::before {
  content: "✓";
}

.page-contact .checkitem__input:checked + .checkitem__mark {
  background: var(--cyan-700);
  border-color: var(--cyan-700);
  color: var(--paper-050);
}

.page-contact .checkitem__input:focus-visible + .checkitem__mark {
  outline: 2px solid var(--cyan-700);
  outline-offset: 2px;
}

.page-contact .checkitem__text {
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--ink-800);
}

.page-contact .checkitem__text strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
  color: var(--ink-900);
}

.page-contact .checklist__note {
  margin: 18px 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--slate-600);
}

/* ---------- 评估 ---------- */
.page-contact .review-grid {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

.page-contact .review-item {
  padding: 18px 20px;
  border-left: 2px solid var(--cyan-700);
  border-radius: 0 20px 20px 0;
  background: rgba(10, 22, 34, 0.05);
}

.page-contact .review-item__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--cyan-700);
}

.page-contact .review-item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-900);
}

.page-contact .review-item p:last-child {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--slate-600);
}

/* ---------- 延伸阅读 ---------- */
.page-contact .contact-links {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .contact-links li {
  border-top: 1px solid var(--line-light);
}

.page-contact .contact-links a {
  position: relative;
  display: block;
  padding: 14px 0 14px 22px;
  color: var(--ink-900);
  font-size: 0.97rem;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-contact .contact-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--cyan-700);
  transition: width 0.24s var(--ease);
}

.page-contact .contact-links a:hover,
.page-contact .contact-links a:focus-visible {
  color: var(--cyan-700);
}

.page-contact .contact-links a:hover::before,
.page-contact .contact-links a:focus-visible::before {
  width: 12px;
}

/* ---------- 底部通栏 ---------- */
.page-contact .contact-footnote {
  padding: clamp(32px, 6vw, 72px) 0 clamp(40px, 7vw, 88px);
  background:
    radial-gradient(80% 120% at 100% 0%, var(--cyan-glow) 0%, transparent 60%),
    var(--ink-950);
}

.page-contact .contact-figure--wide {
  margin: 0;
  border-color: var(--line-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(320px, 38fr) 62fr;
    align-items: start;
  }

  .page-contact .contact-aside {
    position: sticky;
    top: clamp(16px, 3vw, 40px);
    align-self: start;
    padding: clamp(40px, 4vw, 64px) clamp(28px, 3vw, 48px);
    border-right: 1px solid var(--line-soft);
    border-bottom: 0;
  }

  .page-contact .contact-main {
    padding-inline: clamp(32px, 4vw, 72px);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-hero__focus .status-dot {
    animation: none;
  }

  .page-contact .contact-tabs .tabpanel {
    animation: none;
  }

  .page-contact .contact-links a::before,
  .page-contact .checkitem__mark {
    transition: none;
  }
}

@keyframes contact-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.55;
    transform: scale(0.82);
  }
}

@keyframes contact-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}