/* =====================================================
   KAIYUN 联系品牌 · 通讯录式分屏布局
   作用域 .page-contact
   ===================================================== */
.page-contact {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

.page-contact .container {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 20px;
}

/* ---------- 首屏分屏容器 ---------- */
.page-contact .contact-directory-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  background-color: var(--bg-primary);
}
.page-contact .contact-directory-hero::before {
  content: '';
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-orange) 0%, transparent 58%, var(--accent-green) 100%);
}

/* ---------- 左栏 · 通讯录 ---------- */
.page-contact .contact-directory-panel {
  position: relative;
  padding: 32px 20px 56px;
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 30px;
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}
.page-contact .breadcrumb-link {
  color: var(--accent-green);
  text-decoration: none;
  transition: color var(--transition);
}
.page-contact .breadcrumb-link:hover {
  color: var(--accent-orange);
}
.page-contact .breadcrumb-current {
  color: var(--text-secondary);
}
.page-contact .separator {
  color: var(--border-blue);
}

/* 标题区 */
.page-contact .contact-header-block {
  position: relative;
  padding-left: 42px;
  margin-bottom: 26px;
}
.page-contact .contact-index {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-orange);
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  border-left: 2px solid var(--accent-orange);
  padding-left: 6px;
}
.page-contact .contact-title {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  text-shadow: 1.5px 0 0 rgba(57, 255, 20, 0.35), -1px 0 0 rgba(255, 107, 0, 0.3);
}
.page-contact .contact-subtitle {
  margin: 0;
  font-size: 15px;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

/* 联系渠道标题 */
.page-contact .contact-channels-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 28px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-blue);
}
.page-contact .contact-channels-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-green);
  letter-spacing: 0.1em;
  padding: 3px 8px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-blue);
}
.page-contact .contact-channels-title {
  font-size: 16px;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
  letter-spacing: 0.06em;
}

/* 抽象联系视觉图 */
.page-contact .contact-abstract-img {
  margin: 0 0 30px;
  max-width: 380px;
}
.page-contact .contact-abstract-img img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--bg-secondary);
  padding: 10px;
  border: 1px solid var(--border-blue);
}

/* 通讯录条目 */
.page-contact .contact-entries {
  border-top: 1px solid var(--border-blue);
}
.page-contact .contact-entry {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 2px;
  border-bottom: 1px solid var(--border-blue);
  transition: background-color var(--transition), padding-left var(--transition);
}
.page-contact .contact-entry:hover {
  background-color: var(--bg-secondary);
  padding-left: 10px;
}
.page-contact .contact-entry::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--accent-orange);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.25s ease;
}
.page-contact .contact-entry:hover::before {
  transform: scaleY(1);
}
.page-contact .entry-index {
  flex-shrink: 0;
  width: 34px;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.page-contact .entry-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.page-contact .entry-label {
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}
.page-contact .entry-value {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.45;
  word-break: break-all;
}
.page-contact .entry-value.mono {
  font-size: 14.5px;
}
.page-contact .entry-note {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  opacity: 0.85;
}
.page-contact .entry-tag {
  flex-shrink: 0;
  margin-top: 2px;
}
.page-contact .tag-green {
  color: var(--accent-green);
  border: 1px solid rgba(57, 255, 20, 0.35);
  background: rgba(57, 255, 20, 0.08);
}
.page-contact .tag-blue {
  color: #7FB2FF;
  border: 1px solid rgba(127, 178, 255, 0.3);
  background: rgba(127, 178, 255, 0.08);
}
.page-contact .tag-orange {
  color: var(--accent-orange);
  border: 1px solid rgba(255, 107, 0, 0.35);
  background: rgba(255, 107, 0, 0.08);
}

/* ---------- 右栏 · 信号辐射区 ---------- */
.page-contact .contact-signal-panel {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--border-blue);
}
.page-contact .signal-bg-figure {
  position: absolute;
  inset: 0;
  margin: 0;
}
.page-contact .signal-bg-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
}
.page-contact .signal-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, rgba(11, 27, 61, 0.92) 0%, rgba(18, 38, 77, 0.62) 48%, rgba(10, 18, 32, 0.9) 100%);
}
.page-contact .signal-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 48px 22px;
  text-align: center;
  width: 100%;
}

/* SVG 波纹动画 */
.page-contact .signal-svg {
  width: min(380px, 78vw);
  height: auto;
  overflow: visible;
}
.page-contact .signal-ring {
  transform-box: fill-box;
  transform-origin: center;
  opacity: 0.14;
  animation: page-contact-ripple 4s ease-out infinite;
}
.page-contact .signal-ring-1 { animation-delay: 0s; }
.page-contact .signal-ring-2 { animation-delay: 0.7s; }
.page-contact .signal-ring-3 { animation-delay: 1.4s; }
.page-contact .signal-ring-4 { animation-delay: 2.1s; }
.page-contact .signal-core {
  transform-box: fill-box;
  transform-origin: center;
  animation: page-contact-breath 2.4s ease-in-out infinite;
}

@keyframes page-contact-ripple {
  0% {
    transform: scale(0.75);
    opacity: 0.4;
  }
  72%, 100% {
    transform: scale(2.1);
    opacity: 0;
  }
}
@keyframes page-contact-breath {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.5); opacity: 1; }
}

/* 信号说明 */
.page-contact .signal-caption {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 13px;
  letter-spacing: 0.12em;
  margin: 0;
}
.page-contact .signal-caption-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 8px;
  border: 1px solid var(--border-blue);
  background: var(--bg-secondary);
  color: var(--accent-green);
}

/* 服务时间卡片 */
.page-contact .signal-service-card {
  display: flex;
  align-items: center;
  gap: 16px;
  text-align: left;
  padding: 18px 22px;
  background: var(--bg-primary);
  border: 1px solid var(--border-blue);
  border-left: 4px solid var(--accent-green);
  max-width: 360px;
  width: 100%;
}
.page-contact .signal-card-icon {
  flex-shrink: 0;
}
.page-contact .signal-card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-contact .signal-service-label {
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}
.page-contact .signal-service-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}
.page-contact .signal-service-note {
  font-size: 12px;
  color: var(--accent-green);
}

/* 响应标签 */
.page-contact .signal-response-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border: 1px solid var(--border-blue);
  background: var(--bg-secondary);
  font-size: 13px;
  color: var(--text-primary);
  margin: 0;
}
.page-contact .response-dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(33, 196, 93, 0.2);
}

/* 右栏 CTA */
.page-contact .signal-cta-link {
  color: var(--accent-orange);
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid var(--accent-orange);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}
.page-contact .signal-cta-link:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
}

/* ---------- 章节共用标题 ---------- */
.page-contact .section-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: 40px;
  max-width: 720px;
}
.page-contact .section-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-orange);
  letter-spacing: 0.14em;
}
.page-contact .section-kicker {
  display: inline-block;
  font-size: 13px;
  color: var(--accent-green);
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border: 1px solid rgba(57, 255, 20, 0.3);
  background: rgba(57, 255, 20, 0.06);
}
.page-contact .section-title {
  margin: 4px 0 0;
  font-size: var(--fs-section);
  font-weight: 900;
  line-height: 1.15;
  color: var(--text-primary);
}
.page-contact .section-desc {
  margin: 8px 0 0;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.page-contact .intext-link {
  color: var(--accent-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 20, 0.4);
  transition: color var(--transition), border-color var(--transition);
}
.page-contact .intext-link:hover {
  color: var(--accent-orange);
  border-bottom-color: var(--accent-orange);
}

/* ---------- 商务合作 ---------- */
.page-contact .contact-partnership {
  background-color: var(--bg-secondary);
  padding-block: 56px 60px;
  border-top: 2px solid var(--accent-orange);
}
.page-contact .partnership-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-contact .partnership-card {
  position: relative;
  padding: 24px 20px;
  background: var(--bg-primary);
  border: 1px solid var(--border-blue);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.page-contact .partnership-card::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  border-left: 28px solid transparent;
  border-bottom: 28px solid var(--accent-orange);
  opacity: 0.55;
  transition: opacity var(--transition);
}
.page-contact .partnership-card:hover {
  border-color: var(--accent-green);
  transform: translateY(-3px);
}
.page-contact .partnership-card:hover::after {
  opacity: 1;
}
.page-contact .partnership-code {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-orange);
}
.page-contact .partnership-card-title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}
.page-contact .partnership-card-text {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.page-contact .partnership-cta {
  margin: 32px 0 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.page-contact .cta-mail {
  color: var(--accent-green);
}

/* ---------- 用户反馈 ---------- */
.page-contact .contact-feedback {
  background-color: var(--bg-primary);
  padding-block: 56px 64px;
  border-top: 2px solid var(--accent-green);
}
.page-contact .feedback-list {
  margin-top: 36px;
  border-top: 1px solid var(--border-blue);
}
.page-contact .feedback-row {
  display: grid;
  grid-template-columns: 44px 1fr;
  column-gap: 18px;
  padding: 24px 4px;
  border-bottom: 1px solid var(--border-blue);
  transition: background-color var(--transition);
}
.page-contact .feedback-row:hover {
  background-color: var(--bg-secondary);
}
.page-contact .feedback-num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent-orange);
}
.page-contact .feedback-title-small {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}
.page-contact .feedback-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* 响应时效 */
.page-contact .feedback-times {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 28px;
  padding: 18px 20px;
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent-orange);
}
.page-contact .feedback-times-index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-orange);
}
.page-contact .feedback-times-text {
  margin: 0;
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}

/* ---------- 平板端适配 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-directory-panel {
    padding: 44px 36px 64px;
  }
  .page-contact .contact-signal-panel {
    min-height: 560px;
  }
  .page-contact .partnership-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .page-contact .partnership-card {
    padding: 28px 24px;
  }
  .page-contact .partnership-cta {
    margin-top: 36px;
  }
}

/* ---------- 桌面端 · 通讯录分屏 ---------- */
@media (min-width: 1024px) {
  .page-contact .contact-directory-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
  }
  .page-contact .contact-directory-panel {
    padding: 56px 52px 72px;
    border-right: 1px solid var(--border-blue);
  }
  .page-contact .contact-signal-panel {
    border-top: none;
    position: sticky;
    top: var(--header-height);
    align-self: start;
    min-height: calc(100vh - var(--header-height));
  }
  .page-contact .signal-content {
    padding: 56px 36px;
  }
  .page-contact .contact-partnership,
  .page-contact .contact-feedback {
    padding-block: 72px 80px;
  }
  .page-contact .section-header {
    margin-bottom: 48px;
  }
}

/* ---------- 大屏网格 ---------- */
@media (min-width: 1280px) {
  .page-contact .partnership-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-contact .contact-directory-panel {
    padding-inline: 64px;
  }
}