/* ==========================================================================
   煤矿采空区系统治理专题 (ZHUIJANG TOPIC) 旗舰版样式系统 v2026.09.09
   融合张洁贞官方品牌顶级规范、两栏粘性排版、KaTeX公式本地化与工程级图表组件
   ========================================================================== */

/* 引入本地基础样式与组件 */

:root {
  --zjz-primary: #1A365D;
  --zjz-navy: #0f172a;
  --zjz-dark: #08121f;
  --zjz-gold: #d4af37;
  --zjz-gold-dark: #b8860b;
  --zjz-gold-soft: #fef9ee;
  --zjz-teal: #2e7b7a;
  --zjz-teal-dark: #1f5655;
  --zjz-teal-soft: #eef7f6;
  --zjz-text-main: #1e293b;
  --zjz-text-muted: #64748b;
  --zjz-border: #e2e8f0;
  --zjz-bg-light: #f8fafc;
  --zjz-bg-card: #ffffff;
  --zjz-radius-sm: 6px;
  --zjz-radius-md: 10px;
  --zjz-radius-lg: 16px;
  --zjz-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --zjz-shadow-md: 0 6px 20px rgba(15, 23, 42, 0.07);
  --zjz-shadow-lg: 0 14px 36px rgba(15, 23, 42, 0.10);
  --zjz-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   1. 专题二级粘性导航条 (Topic Sub-Navigation)
   ========================================================================== */
.topic-subnav-wrapper {
  position: sticky !important;
  top: 70px !important;
  z-index: 99 !important;
  background: rgba(15, 23, 42, 0.94) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 2px solid var(--zjz-gold) !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15) !important;
  transition: all 0.3s ease !important;
}

.topic-subnav {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 8px !important;
  max-width: 1240px !important;
  margin: 0 auto !important;
  padding: 8px 20px !important;
  overflow-x: auto !important;
  scrollbar-width: none !important;
  white-space: nowrap !important;
}

.topic-subnav::-webkit-scrollbar {
  display: none !important;
}

.topic-subnav-brand {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  color: #ffffff !important;
  font-weight: 800 !important;
  font-size: 0.95rem !important;
  text-decoration: none !important;
  padding-right: 16px !important;
  border-right: 1px solid rgba(255, 255, 255, 0.15) !important;
  flex-shrink: 0 !important;
}

.topic-subnav-brand i {
  color: var(--zjz-gold) !important;
}

.topic-subnav-menu {
  display: flex !important;
  align-items: center !important;
  list-style: none !important;
  gap: 6px !important;
  margin: 0 !important;
  padding: 0 !important;
}

.topic-subnav-item a {
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  padding: 7px 14px !important;
  border-radius: 20px !important;
  color: rgba(255, 255, 255, 0.82) !important;
  font-size: 0.88rem !important;
  font-weight: 500 !important;
  text-decoration: none !important;
  transition: all 0.22s var(--zjz-ease) !important;
  border: 1px solid transparent !important;
}

.topic-subnav-item a:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(212, 175, 55, 0.3) !important;
}

.topic-subnav-item a.active {
  color: #0f172a !important;
  background: linear-gradient(135deg, #d4af37 0%, #f3e5ab 50%, #d4af37 100%) !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 12px rgba(212, 175, 55, 0.35) !important;
  border-color: #d4af37 !important;
}

.topic-subnav-item a.active i {
  color: #0f172a !important;
}

.topic-subnav-cta {
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  padding: 6px 14px !important;
  background: var(--zjz-teal) !important;
  color: #ffffff !important;
  border-radius: 20px !important;
  font-size: 0.84rem !important;
  font-weight: 600 !important;
  text-decoration: none !important;
  transition: all 0.2s ease !important;
  flex-shrink: 0 !important;
}

.topic-subnav-cta:hover {
  background: #256665 !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(46, 123, 122, 0.4) !important;
}

/* ==========================================================================
   2. 专题核心 Hero Banner 视觉重构 (Topic Hero)
   ========================================================================== */
.topic-hero {
  position: relative !important;
  background: linear-gradient(135deg, #08121f 0%, #0f172a 50%, #162436 100%) !important;
  color: #ffffff !important;
  padding: 105px 0 50px !important;
  overflow: hidden !important;
}

.topic-hero::before {
  content: "" !important;
  position: absolute !important;
  inset: 0 !important;
  background: radial-gradient(circle at 75% 30%, rgba(46, 123, 122, 0.22) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.12) 0%, transparent 55%) !important;
  pointer-events: none !important;
  z-index: 1 !important;
}

.topic-hero .container {
  position: relative !important;
  z-index: 2 !important;
  max-width: 1200px !important;
}

.topic-breadcrumb {
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  font-size: 0.88rem !important;
  color: rgba(255, 255, 255, 0.75) !important;
  margin-bottom: 18px !important;
  flex-wrap: wrap !important;
}

.topic-breadcrumb a {
  color: rgba(255, 255, 255, 0.85) !important;
  text-decoration: none !important;
  transition: color 0.2s !important;
}

.topic-breadcrumb a:hover {
  color: var(--zjz-gold) !important;
}

.topic-breadcrumb span {
  color: rgba(255, 255, 255, 0.45) !important;
}

.topic-hero-kicker {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  padding: 4px 12px !important;
  background: rgba(212, 175, 55, 0.15) !important;
  border: 1px solid rgba(212, 175, 55, 0.4) !important;
  border-radius: 30px !important;
  color: var(--zjz-gold) !important;
  font-size: 0.82rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em !important;
  margin-bottom: 16px !important;
  text-transform: uppercase !important;
}

.topic-hero-title {
  font-size: 2.35rem !important;
  font-weight: 800 !important;
  line-height: 1.25 !important;
  color: #ffffff !important;
  margin-bottom: 18px !important;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4) !important;
}

.topic-hero-title span {
  color: var(--zjz-gold) !important;
}

.topic-hero-desc {
  font-size: 1.08rem !important;
  line-height: 1.75 !important;
  color: rgba(255, 255, 255, 0.88) !important;
  max-width: 900px !important;
  margin-bottom: 26px !important;
}

.topic-hero-tags {
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
  flex-wrap: wrap !important;
}

.topic-hero-tag {
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  padding: 4px 10px !important;
  background: rgba(255, 255, 255, 0.08) !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
  border-radius: 6px !important;
  color: rgba(255, 255, 255, 0.85) !important;
  font-size: 0.84rem !important;
}

.topic-hero-tag i {
  color: var(--zjz-gold) !important;
}

/* ==========================================================================
   3. 核心统计指标缎带 (Stats Ribbon)
   ========================================================================== */
.stats-ribbon {
  background: #ffffff !important;
  border-bottom: 1px solid var(--zjz-border) !important;
  padding: 24px 0 !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03) !important;
}

.stats-grid {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 24px !important;
  max-width: 1200px !important;
  margin: 0 auto !important;
  padding: 0 20px !important;
}

.stat-item {
  text-align: center !important;
  padding: 10px 16px !important;
  border-right: 1px solid var(--zjz-border) !important;
}

.stat-item:last-child {
  border-right: none !important;
}

.stat-number {
  font-size: 2.2rem !important;
  font-weight: 800 !important;
  color: var(--zjz-primary) !important;
  line-height: 1.1 !important;
  margin-bottom: 4px !important;
  font-family: var(--heading-font) !important;
}

.stat-number sup {
  font-size: 1.1rem !important;
  color: var(--zjz-gold-dark) !important;
  top: -0.5em !important;
}

.stat-label {
  font-size: 0.86rem !important;
  color: var(--zjz-text-muted) !important;
  font-weight: 600 !important;
}

/* ==========================================================================
   4. 旗舰工法矩阵卡片 (Methodology Grid)
   ========================================================================== */
.method-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
  gap: 24px !important;
  margin: 32px 0 !important;
}

.method-card {
  background: #ffffff !important;
  border: 1px solid var(--zjz-border) !important;
  border-radius: var(--zjz-radius-md) !important;
  padding: 24px !important;
  box-shadow: var(--zjz-shadow-sm) !important;
  transition: all 0.28s var(--zjz-ease) !important;
  display: flex !important;
  flex-direction: column !important;
  position: relative !important;
  overflow: hidden !important;
}

.method-card::before {
  content: "" !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  height: 4px !important;
  background: var(--zjz-primary) !important;
  transition: all 0.28s ease !important;
}

.method-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--zjz-shadow-md) !important;
  border-color: rgba(212, 175, 55, 0.4) !important;
}

.method-card:hover::before {
  background: linear-gradient(90deg, var(--zjz-teal), var(--zjz-gold)) !important;
}

.method-badge {
  align-self: flex-start !important;
  padding: 3px 10px !important;
  background: var(--zjz-teal-soft) !important;
  color: var(--zjz-teal-dark) !important;
  border-radius: 4px !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  margin-bottom: 12px !important;
}

.method-card h3 {
  font-size: 1.25rem !important;
  font-weight: 700 !important;
  color: var(--zjz-navy) !important;
  margin-bottom: 10px !important;
  line-height: 1.35 !important;
}

.method-card p {
  font-size: 0.92rem !important;
  line-height: 1.65 !important;
  color: var(--zjz-text-muted) !important;
  margin-bottom: 18px !important;
  flex-grow: 1 !important;
}

.method-metrics {
  background: var(--zjz-bg-light) !important;
  border-radius: var(--zjz-radius-sm) !important;
  padding: 12px 14px !important;
  margin-bottom: 18px !important;
  font-size: 0.84rem !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 6px !important;
}

.method-metric-row {
  display: flex !important;
  justify-content: space-between !important;
  color: var(--zjz-text-main) !important;
}

.method-metric-row span:first-child {
  color: var(--zjz-text-muted) !important;
}

.method-metric-row span:last-child {
  font-weight: 700 !important;
  color: var(--zjz-primary) !important;
}

.method-link {
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  font-weight: 700 !important;
  color: var(--zjz-primary) !important;
  font-size: 0.88rem !important;
  text-decoration: none !important;
  transition: color 0.2s !important;
}

.method-link:hover {
  color: var(--zjz-gold-dark) !important;
}

/* ==========================================================================
   5. 7道风险门禁时间线组件 (Risk Gates Timeline)
   ========================================================================== */
.gates-timeline {
  display: flex !important;
  flex-direction: column !important;
  gap: 16px !important;
  margin: 32px 0 !important;
}

.gate-card {
  display: grid !important;
  grid-template-columns: 80px 1fr 200px !important;
  gap: 20px !important;
  align-items: center !important;
  background: #ffffff !important;
  border: 1px solid var(--zjz-border) !important;
  border-left: 5px solid var(--zjz-teal) !important;
  border-radius: var(--zjz-radius-sm) !important;
  padding: 18px 24px !important;
  box-shadow: var(--zjz-shadow-sm) !important;
  transition: all 0.25s ease !important;
}

.gate-card:hover {
  border-left-color: var(--zjz-gold) !important;
  box-shadow: var(--zjz-shadow-md) !important;
  transform: translateX(4px) !important;
}

.gate-num-wrap {
  text-align: center !important;
}

.gate-num {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 52px !important;
  height: 52px !important;
  border-radius: 50% !important;
  background: var(--zjz-bg-light) !important;
  color: var(--zjz-primary) !important;
  font-size: 1.3rem !important;
  font-weight: 800 !important;
  border: 2px solid var(--zjz-border) !important;
}

.gate-content h4 {
  font-size: 1.15rem !important;
  font-weight: 700 !important;
  color: var(--zjz-navy) !important;
  margin-bottom: 6px !important;
}

.gate-question {
  font-size: 0.94rem !important;
  color: #765b25 !important;
  font-weight: 600 !important;
  margin-bottom: 6px !important;
}

.gate-evidence {
  font-size: 0.85rem !important;
  color: var(--zjz-text-muted) !important;
}

.gate-meta {
  text-align: right !important;
  font-size: 0.85rem !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 4px !important;
}

.gate-owner {
  color: var(--zjz-primary) !important;
  font-weight: 700 !important;
}

.gate-status-pill {
  display: inline-block !important;
  padding: 3px 10px !important;
  border-radius: 12px !important;
  background: var(--zjz-gold-soft) !important;
  color: #806327 !important;
  font-weight: 700 !important;
  font-size: 0.78rem !important;
}

/* ==========================================================================
   6. 工业固废材料护照卡 (Material Passport Cards)
   ========================================================================== */
.passport-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)) !important;
  gap: 20px !important;
  margin: 28px 0 !important;
}

.passport-card {
  background: #ffffff !important;
  border: 1px solid var(--zjz-border) !important;
  border-radius: var(--zjz-radius-md) !important;
  padding: 20px !important;
  box-shadow: var(--zjz-shadow-sm) !important;
  transition: all 0.25s ease !important;
}

.passport-card:hover {
  box-shadow: var(--zjz-shadow-md) !important;
  border-color: var(--zjz-teal) !important;
}

.passport-card-head {
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  margin-bottom: 14px !important;
  padding-bottom: 10px !important;
  border-bottom: 1px solid var(--zjz-border) !important;
}

.passport-icon {
  width: 36px !important;
  height: 36px !important;
  border-radius: 8px !important;
  background: var(--zjz-teal-soft) !important;
  color: var(--zjz-teal-dark) !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 1.1rem !important;
}

.passport-card-head h4 {
  margin: 0 !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  color: var(--zjz-navy) !important;
}

.passport-field-list {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 8px !important;
}

.passport-field-list li {
  font-size: 0.88rem !important;
  color: var(--zjz-text-main) !important;
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
}

.passport-field-list li::before {
  content: "•" !important;
  color: var(--zjz-gold) !important;
  font-weight: bold !important;
  font-size: 1.2rem !important;
  line-height: 1 !important;
}

/* ==========================================================================
   7. 标杆工程案例展示卡 (Project Archive Showcase Cards)
   ========================================================================== */
.case-dossier-card {
  background: #ffffff !important;
  border: 1px solid var(--zjz-border) !important;
  border-radius: var(--zjz-radius-lg) !important;
  padding: 32px !important;
  margin-bottom: 40px !important;
  box-shadow: var(--zjz-shadow-md) !important;
}

.case-dossier-header {
  display: flex !important;
  justify-content: space-between !important;
  align-items: flex-start !important;
  margin-bottom: 24px !important;
  padding-bottom: 20px !important;
  border-bottom: 2px solid #f1f5f9 !important;
  gap: 20px !important;
  flex-wrap: wrap !important;
}

.case-dossier-header h3 {
  font-size: 1.5rem !important;
  font-weight: 800 !important;
  color: var(--zjz-navy) !important;
  margin-bottom: 8px !important;
}

.case-dossier-badge {
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  padding: 6px 14px !important;
  background: var(--zjz-gold-soft) !important;
  color: #8a6416 !important;
  border: 1px solid rgba(212, 175, 55, 0.4) !important;
  border-radius: 20px !important;
  font-size: 0.82rem !important;
  font-weight: 700 !important;
}

.case-specs-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) !important;
  gap: 16px !important;
  background: var(--zjz-bg-light) !important;
  padding: 18px 20px !important;
  border-radius: var(--zjz-radius-md) !important;
  margin-bottom: 24px !important;
}

.case-spec-item strong {
  display: block !important;
  font-size: 0.82rem !important;
  color: var(--zjz-text-muted) !important;
  margin-bottom: 4px !important;
}

.case-spec-item span {
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  color: var(--zjz-primary) !important;
}

.case-section-block {
  margin-bottom: 20px !important;
}

.case-section-block h4 {
  font-size: 1.1rem !important;
  font-weight: 700 !important;
  color: var(--zjz-navy) !important;
  margin-bottom: 8px !important;
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
}

.case-section-block h4 i {
  color: var(--zjz-teal) !important;
}

.case-section-block p {
  font-size: 0.94rem !important;
  line-height: 1.7 !important;
  color: var(--zjz-text-main) !important;
  margin: 0 !important;
}

/* ==========================================================================
   8. 条件初筛工具容器 (Applicability Tool Styling)
   ========================================================================== */
.screening-container {
  background: #ffffff !important;
  border: 1px solid var(--zjz-border) !important;
  border-radius: var(--zjz-radius-lg) !important;
  padding: 32px !important;
  box-shadow: var(--zjz-shadow-md) !important;
  margin: 32px 0 !important;
}

.screening-step-box {
  margin-bottom: 28px !important;
  padding-bottom: 24px !important;
  border-bottom: 1px solid var(--zjz-border) !important;
}

.screening-step-box:last-child {
  border-bottom: none !important;
}

.screening-step-box h4 {
  font-size: 1.15rem !important;
  font-weight: 700 !important;
  color: var(--zjz-navy) !important;
  margin-bottom: 14px !important;
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
}

.step-badge {
  width: 28px !important;
  height: 28px !important;
  border-radius: 50% !important;
  background: var(--zjz-primary) !important;
  color: #ffffff !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 0.85rem !important;
  font-weight: 800 !important;
}

.screening-options-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)) !important;
  gap: 12px !important;
}

.screening-label-option {
  display: flex !important;
  align-items: flex-start !important;
  gap: 10px !important;
  padding: 14px 16px !important;
  background: var(--zjz-bg-light) !important;
  border: 1px solid var(--zjz-border) !important;
  border-radius: var(--zjz-radius-sm) !important;
  cursor: pointer !important;
  font-size: 0.92rem !important;
  transition: all 0.2s ease !important;
}

.screening-label-option:hover {
  background: #ffffff !important;
  border-color: var(--zjz-teal) !important;
  box-shadow: var(--zjz-shadow-sm) !important;
}

.screening-label-option input[type="radio"] {
  margin-top: 3px !important;
  accent-color: var(--zjz-teal) !important;
}

/* ==========================================================================
   9. 响应式与自适应断点 (Responsive Rules)
   ========================================================================== */
@media (max-width: 991px) {
  .topic-subnav {
    justify-content: flex-start !important;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 16px !important;
  }
  .stat-item {
    border-right: none !important;
    border-bottom: 1px solid var(--zjz-border) !important;
    padding-bottom: 14px !important;
  }
  .gate-card {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .gate-num-wrap {
    text-align: left !important;
  }
  .gate-meta {
    text-align: left !important;
  }
  .topic-hero-title {
    font-size: 1.85rem !important;
  }
}

@media (max-width: 600px) {
  .stats-grid {
    grid-template-columns: 1fr !important;
  }
  .topic-hero-title {
    font-size: 1.6rem !important;
  }
  .topic-hero {
    padding: 105px 0 30px !important;
  }
  .case-dossier-card {
    padding: 20px !important;
  }
  .screening-container {
    padding: 18px !important;
  }
}