.page-contact {
  background: var(--ink-0);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 30px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

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

.page-contact .crumb-sep {
  color: var(--line);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--cyan);
}

/* ---------- 章节节奏 ---------- */
.page-contact .section {
  padding-block: clamp(52px, 7vw, 92px);
}

.page-contact .section--tight {
  padding-block: clamp(26px, 4vw, 42px) clamp(52px, 7vw, 92px);
}

.page-contact .section--alt {
  background: var(--ink-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .section-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.1;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-contact .section-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero-grid {
  display: grid;
  gap: 40px;
  margin-top: 34px;
}

.page-contact h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.6vw, 62px);
  line-height: 1.04;
  letter-spacing: -.045em;
  color: var(--paper);
  text-wrap: balance;
}

.page-contact .pc-lede {
  margin: 22px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .pc-channels {
  list-style: none;
  margin: 38px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-channel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-channel-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .pc-channel-value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 18px);
  font-weight: 500;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel-value--text {
  font-family: var(--font-body);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.65;
}

.page-contact .copy-btn {
  justify-self: start;
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, .1);
  color: var(--paper);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .copy-btn.is-copied {
  color: var(--ok);
  border-color: var(--ok);
}

.page-contact .pc-sla {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-top: 30px;
  padding: 22px;
  background: var(--ink-1);
  border-left: 2px solid var(--orange);
}

.page-contact .pc-sla-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.page-contact .pc-sla-num {
  font-size: clamp(38px, 6vw, 54px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--orange);
}

.page-contact .pc-sla-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-contact .pc-sla p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .pc-hero-figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 82% 8%, rgba(0, 229, 255, .16), transparent 62%),
    radial-gradient(90% 70% at 10% 100%, rgba(255, 107, 26, .14), transparent 66%),
    var(--ink-1);
}

.page-contact .pc-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 1px solid rgba(0, 229, 255, .14);
}

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

.page-contact .pc-hero-figure figcaption {
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 标签页 ---------- */
.page-contact .tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.page-contact .tab {
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.page-contact .tab:hover,
.page-contact .tab:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
}

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

.page-contact .tab[aria-selected="true"] {
  color: var(--ink-0);
  background: var(--orange);
  border-color: var(--orange);
  font-weight: 700;
}

.page-contact .tabpanel {
  margin-top: 30px;
}

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

.page-contact .pc-panel-grid {
  display: grid;
  gap: 26px;
}

.page-contact .pc-panel-body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .pc-panel-body p:last-child {
  margin-bottom: 0;
}

.page-contact .pc-points {
  list-style: none;
  margin: 0;
  padding: 22px;
  background: var(--ink-0);
  border: 1px solid var(--line);
}

.page-contact .pc-points li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .pc-points li:last-child {
  margin-bottom: 0;
}

.page-contact .pc-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 准备清单 ---------- */
.page-contact .pc-prep-grid {
  display: grid;
  gap: 34px;
  margin-top: 34px;
}

.page-contact .disclosure {
  background: var(--ink-1);
  border: 1px solid var(--line);
  margin-bottom: 12px;
  transition: border-color .2s ease;
}

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

.page-contact .disclosure[open] {
  border-color: rgba(255, 107, 26, .55);
}

.page-contact .disclosure summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

.page-contact .disclosure summary::-webkit-details-marker {
  display: none;
}

.page-contact .disclosure summary::marker {
  content: "";
}

.page-contact .disclosure summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--orange);
}

.page-contact .disclosure[open] summary::before {
  content: "−";
}

.page-contact .disclosure summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .disclosure-body {
  padding: 0 20px 20px 49px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .disclosure-body p {
  margin: 0;
}

.page-contact .pc-prep-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-1);
}

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

.page-contact .pc-prep-figure figcaption {
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* ---------- 受理说明 ---------- */
.page-contact .pc-scope-grid {
  display: grid;
  gap: 16px;
  margin-top: 34px;
}

.page-contact .pc-scope-card {
  padding: 24px 20px;
  background: var(--ink-0);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-contact .pc-scope-card:nth-child(2) {
  border-top-color: var(--orange);
}

.page-contact .pc-scope-card:nth-child(3) {
  border-top-color: var(--gold);
}

.page-contact .pc-scope-card:nth-child(4) {
  border-top-color: var(--ok);
}

.page-contact .pc-scope-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .pc-scope-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 快速指引 ---------- */
.page-contact .pc-guide-grid {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.page-contact .pc-guide-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 24px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.page-contact .pc-guide-card:hover,
.page-contact .pc-guide-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: var(--lift);
}

.page-contact .pc-guide-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .pc-guide-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .pc-guide-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .pc-guide-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .pc-guide-go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-contact .pc-backtop {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 40px;
  padding: 11px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .pc-backtop:hover,
.page-contact .pc-backtop:focus-visible {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, .08);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-contact .pc-channel {
    grid-template-columns: 98px minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
  }
}

@media (min-width: 700px) {
  .page-contact .pc-scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .pc-guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .pc-panel-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-prep-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
}

@media (min-width: 920px) {
  .page-contact .pc-hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-contact .pc-scope-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}