.page-contact {
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* ===== 首屏：分屏英雄区 ===== */
.page-contact .contact-hero {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-contact .contact-hero-kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--accent2);
  text-transform: uppercase;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-headline);
  font-size: clamp(44px, 9vw, 84px);
  line-height: 0.95;
  margin: var(--space-2) 0;
  letter-spacing: 0.01em;
}

.page-contact .contact-hero-sub {
  font-family: var(--font-headline);
  font-size: clamp(22px, 4.2vw, 40px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent);
  border-left: 3px solid var(--accent);
  padding-left: var(--space-2);
}

.page-contact .contact-hero-desc {
  max-width: 58ch;
  margin-top: var(--space-2);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-contact .contact-hero .btn {
  margin-top: var(--space-3);
}

.page-contact .contact-hero-visual {
  position: relative;
  min-height: 240px;
  border: 1px solid var(--border-strong);
  background:
    radial-gradient(circle at 74% 24%, rgba(0, 229, 255, 0.2), transparent 42%),
    radial-gradient(circle at 26% 82%, rgba(255, 107, 53, 0.18), transparent 50%),
    var(--bg-card);
  overflow: hidden;
}

.page-contact .hero-viz-grid,
.page-contact .hero-viz-scan {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  pointer-events: none;
}

.page-contact .hero-viz-grid {
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.4;
}

.page-contact .hero-viz-scan {
  top: auto;
  bottom: auto;
  height: 76px;
  background: linear-gradient(180deg, transparent, rgba(0, 229, 255, 0.14), transparent);
}

.page-contact .hero-viz-chip {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 1;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
  background: rgba(10, 17, 40, 0.9);
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.06);
  white-space: nowrap;
}

.page-contact .hero-viz-chip-phone {
  left: 68%;
  top: 24%;
  color: var(--accent);
  font-size: 18px;
}

.page-contact .hero-viz-chip-mail {
  left: 34%;
  top: 64%;
  color: var(--accent2);
}

.page-contact .hero-viz-chip-loc {
  left: 74%;
  top: 78%;
  color: var(--text-muted);
  font-size: 12px;
}

.page-contact .hero-viz-index {
  position: absolute;
  right: 12px;
  top: 12px;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  writing-mode: vertical-rl;
}

/* ===== 通讯录主体 ===== */
.page-contact .contact-directory {
  padding-bottom: var(--space-6);
}

.page-contact .contact-directory-frame {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--border-strong);
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.04), transparent 35%), var(--bg-card);
}

.page-contact .contact-sidebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.page-contact .contact-v-text {
  font-family: var(--font-headline);
  font-size: 26px;
  letter-spacing: 0.24em;
  color: var(--accent);
}

.page-contact .contact-side-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.page-contact .contact-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3);
}

/* ===== 通讯录卡片 ===== */
.page-contact .contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: linear-gradient(145deg, var(--bg-elevated), var(--bg-card));
  border: 1px solid var(--border);
  overflow: hidden;
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent) 0 40%, var(--accent2) 40% 70%, transparent 70%);
  pointer-events: none;
}

.page-contact .contact-card-head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border);
}

.page-contact .contact-card-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}

.page-contact .contact-card-head h3 {
  font-family: var(--font-headline);
  font-size: 28px;
  line-height: 1;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-contact .contact-card-mark {
  margin-left: auto;
  width: 26px;
  height: 26px;
  color: var(--accent2);
}

.page-contact .contact-card-mark svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-contact .contact-card-img-wrap {
  border-bottom: 1px solid var(--border);
}

.page-contact .contact-card-img-wrap img,
.page-contact .contact-address-visual img {
  width: 100%;
  height: auto;
  display: block;
}

.page-contact .contact-card-body {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  flex: 1;
}

.page-contact .contact-card-phone .contact-card-body::before {
  content: "400";
  position: absolute;
  right: -8px;
  bottom: 48px;
  font-family: var(--font-headline);
  font-size: 128px;
  line-height: 1;
  color: rgba(255, 107, 53, 0.06);
  pointer-events: none;
}

.page-contact .contact-card-label {
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.page-contact .contact-card-value {
  font-size: 20px;
  line-height: 1.45;
  font-weight: 600;
  word-break: break-word;
}

.page-contact .contact-card-value.mono {
  font-family: var(--font-mono);
  font-size: 19px;
}

.page-contact .contact-card-value-lg {
  font-size: clamp(28px, 5.2vw, 36px);
  line-height: 1.2;
}

.page-contact .contact-card-value a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.page-contact .contact-card-value a:hover,
.page-contact .contact-card-value a:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.page-contact .contact-channel-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: max-content;
  max-width: 100%;
  margin: var(--space-1) 0;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
}

.page-contact .contact-card-use {
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: 1px solid var(--border);
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-muted);
}

.page-contact .contact-time-note {
  margin: var(--space-2) 0;
  padding: var(--space-2);
  border: 1px dashed rgba(255, 107, 53, 0.75);
  background: rgba(255, 107, 53, 0.1);
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .contact-address-visual {
  margin-top: var(--space-2);
  border: 1px solid var(--border);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 18px 18px;
}

/* ===== 渠道使用说明 ===== */
.page-contact .contact-channels-section {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-contact .channel-guide-card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-contact .channel-guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent2);
  padding: var(--space-3);
}

.page-contact .channel-guide-card:nth-child(2) {
  border-top-color: var(--accent);
}

.page-contact .channel-guide-card:nth-child(3) {
  border-top-color: var(--warning);
}

.page-contact .channel-guide-card-title {
  font-family: var(--font-headline);
  font-size: 28px;
  margin: 0 0 var(--space-1);
}

.page-contact .channel-guide-card-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ===== 反馈前检查 ===== */
.page-contact .contact-check-section {
  background: linear-gradient(180deg, var(--bg), var(--bg-card));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.page-contact .contact-check-inner {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-contact .contact-check-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-contact .contact-check-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.page-contact .contact-check-num {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--accent2);
}

.page-contact .contact-check-item h3 {
  font-family: var(--font-headline);
  font-size: 26px;
  margin: 0 0 var(--space-1);
}

.page-contact .contact-check-item p {
  margin: 0 0 var(--space-2);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
}

.page-contact .contact-check-item .btn {
  margin-top: var(--space-1);
}

/* ===== 常见问题直达 ===== */
.page-contact .contact-faq-section {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.page-contact .contact-faq-list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-contact .contact-faq-list a {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  color: var(--text);
  text-decoration: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.page-contact .contact-faq-list a:hover,
.page-contact .contact-faq-list a:focus-visible {
  border-color: var(--accent2);
  background: rgba(0, 229, 255, 0.1);
  color: var(--accent2);
}

.page-contact .contact-faq-list .mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}

/* ===== 关注动态 ===== */
.page-contact .contact-journal-section {
  padding-top: var(--space-5);
  padding-bottom: var(--space-6);
}

.page-contact .contact-journal-cta {
  padding: var(--space-4);
  background:
    linear-gradient(135deg, rgba(0, 229, 255, 0.12), transparent 55%),
    var(--bg-card);
  border: 1px solid var(--border-strong);
}

.page-contact .contact-journal-cta .section-head {
  margin-bottom: var(--space-2);
}

.page-contact .contact-journal-desc {
  max-width: 58ch;
  margin: var(--space-2) 0 var(--space-3);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ===== 动画 ===== */
@keyframes contactScan {
  from { transform: translateY(-20%); }
  to { transform: translateY(120%); }
}

@keyframes contactPulse {
  0%, 100% { border-color: rgba(255, 107, 53, 0.75); }
  50% {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.16);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-contact .hero-viz-scan {
    animation: contactScan 6s linear infinite;
  }

  .page-contact .contact-time-note {
    animation: contactPulse 2.6s ease-in-out infinite;
  }
}

/* ===== 响应式断点 ===== */
@media (min-width: 700px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-contact .contact-check-item:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-hero {
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
  }

  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: var(--space-6);
    margin-top: var(--space-5);
  }

  .page-contact .contact-directory-frame {
    grid-template-columns: 96px minmax(0, 1fr);
  }

  .page-contact .contact-sidebar {
    flex-direction: column;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    border-right: 1px solid var(--border);
    border-bottom: 0;
  }

  .page-contact .contact-v-text {
    writing-mode: vertical-rl;
    font-size: 30px;
  }

  .page-contact .contact-side-index {
    writing-mode: vertical-rl;
  }

  .page-contact .contact-cards {
    padding: var(--space-4);
    gap: var(--space-4);
  }

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

  .page-contact .contact-check-item:last-child {
    grid-column: auto;
  }

  .page-contact .contact-journal-cta {
    padding: var(--space-5);
  }
}