/* ==========================================================================
   云朵巡线员 (Cloud Patrol) - 全局核心设计系统样式表
   Design System: Sky Blue & Safety Orange Low-Saturation Warm Tech
   ========================================================================== */

:root {
  /* 核心色彩系统 */
  --color-primary: #4A90E2;          /* 天空与专线蓝 */
  --color-primary-dark: #357ABD;
  --color-primary-light: #EBF4FC;
  --color-accent: #F5A623;           /* 巡线安全橙 / 护目镜暖橙 */
  --color-accent-dark: #D98207;
  --color-accent-light: #FEF6E9;
  
  --color-bg-page: #FAFAF8;          /* 舒适柔和米白底色 */
  --color-bg-card: #FFFFFF;          /* 纯净白容器底色 */
  --color-border: #EAECEF;           /* 低饱和浅灰边框 */
  --color-border-hover: #CBD5E1;
  
  --color-text-main: #2C3E50;        /* 深板岩灰，高可读性 WCAG AAA */
  --color-text-muted: #606F7B;       /* 中性副文本灰 */
  --color-text-light: #94A3B8;
  
  --color-success: #10B981;          /* 探针在线/达标绿 */
  --color-success-bg: #ECFDF5;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;

  /* 阴影层次 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 14px 25px -4px rgba(74, 144, 226, 0.12), 0 6px 10px -5px rgba(0, 0, 0, 0.04);

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* 布局与间距 */
  --container-max: 1180px;
  --transition-normal: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--color-bg-page);
  color: var(--color-text-main);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-normal);
}

a:hover {
  color: var(--color-primary-dark);
}

/* 页面主要容器 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 顶部导航栏 */
.site-header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(2px, 0.6vw, 8px);
  flex-wrap: nowrap;
  white-space: nowrap;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-main);
  padding: 6px clamp(6px, 0.6vw, 12px);
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.nav-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background-color: var(--color-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: #065F46;
  margin-left: clamp(2px, 0.5vw, 6px);
  white-space: nowrap;
  flex-shrink: 0;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

/* 首屏 Hero 区 */
.hero-section {
  padding: 60px 0 40px;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--color-bg-page) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 48px;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent-light);
  border: 1px solid rgba(245, 166, 35, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 16px;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text-main);
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}

.hero-title .highlight {
  color: var(--color-primary);
  background: linear-gradient(120deg, var(--color-primary), #2563EB);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 28px;
}

.hero-status-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-visual-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.hero-svg-wrap {
  width: 180px;
  height: 180px;
  margin: 0 auto 16px;
}

.hero-telemetry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.telemetry-item {
  display: flex;
  flex-direction: column;
}

.telemetry-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  font-feature-settings: "tnum";
}

.telemetry-lbl {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* 核心板块区域通用 */
.section-block {
  padding: 60px 0;
}

.section-head {
  margin-bottom: 36px;
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* 核心服务商天梯矩阵 */
.ladder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 24px;
}

.ladder-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.ladder-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(74, 144, 226, 0.4);
}

.ladder-card.rank-top1 {
  border-top: 4px solid var(--color-accent);
}

.ladder-card.rank-top2 {
  border-top: 4px solid var(--color-primary);
}

.card-top-badge {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--color-accent-light);
  color: var(--color-accent-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-bottom-left-radius: var(--radius-sm);
  border-left: 1px solid rgba(245, 166, 35, 0.3);
  border-bottom: 1px solid rgba(245, 166, 35, 0.3);
}

.ladder-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.rank-pill {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.rank-top1 .rank-pill {
  background-color: var(--color-accent);
  color: #FFFFFF;
}

.rank-top2 .rank-pill {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.rank-normal .rank-pill {
  background-color: var(--color-border);
  color: var(--color-text-main);
}

.provider-name-wrap {
  display: flex;
  flex-direction: column;
}

.provider-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1.2;
}

.provider-tier {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.card-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background-color: var(--color-bg-page);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-bottom: 16px;
  text-align: center;
}

.card-stat-box {
  display: flex;
  flex-direction: column;
}

.card-stat-num {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.card-stat-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.card-details-list {
  list-style: none;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
  flex-grow: 1;
}

.card-details-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}

.card-details-list li strong {
  color: var(--color-text-main);
}

.check-icon {
  color: var(--color-primary);
  font-weight: bold;
}

.card-sla-meta {
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* 高密度紧凑横向对比表格系统 */
.density-table-wrap {
  width: 100%;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  margin-bottom: 24px;
}

.density-table {
  width: 100%;
  table-layout: auto;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
  line-height: 1.5;
}

.density-table th {
  background-color: #F8FAFC;
  padding: 11px 12px;
  font-weight: 700;
  color: var(--color-text-main);
  border-bottom: 2px solid var(--color-border);
  font-size: 0.84rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  vertical-align: middle;
}

.density-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
  vertical-align: middle;
  transition: background-color 0.15s ease;
}

/* 固定单行数据列防折行 */
.density-table td.col-nowrap,
.density-table th.col-nowrap,
.density-table td:nth-child(1),
.density-table td:nth-child(3),
.density-table td:nth-child(4),
.density-table td:nth-child(5),
.density-table td:nth-child(7) {
  white-space: nowrap;
}

/* 描述文本列允许自然折行与字号微调 */
.density-table td.col-wrap,
.density-table th.col-wrap,
.density-table td:nth-child(2),
.density-table td:nth-child(6) {
  white-space: normal;
  font-size: 0.86rem;
  line-height: 1.45;
  word-break: break-word;
}

.density-table tbody tr:nth-child(even) {
  background-color: #FAFAF8;
}

.density-table tbody tr:hover {
  background-color: #F4F8FD;
}

.density-table tbody tr.row-top1 {
  background-color: #FFFDF7;
}

.density-table tbody tr.row-top1:hover {
  background-color: #FEF9EC;
}

.density-table tbody tr.row-top2 {
  background-color: #F8FAFD;
}

.density-table tbody tr.row-top2:hover {
  background-color: #EEF5FC;
}

.density-rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.82rem;
  margin-right: 8px;
  flex-shrink: 0;
}

.badge-rank1 {
  background-color: var(--color-accent);
  color: #FFFFFF;
  box-shadow: 0 1px 3px rgba(245, 166, 35, 0.4);
}

.badge-rank2 {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 1px 3px rgba(74, 144, 226, 0.4);
}

.badge-rank-norm {
  background-color: var(--color-border);
  color: var(--color-text-muted);
}

.density-provider-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}

.provider-meta-cell {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.provider-meta-cell strong {
  font-size: 0.95rem;
  color: var(--color-text-main);
  line-height: 1.2;
}

.provider-sub-tag {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  line-height: 1.2;
  font-weight: 500;
}

/* 时延与数值指标格式化 */
.metric-rtt {
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  color: var(--color-text-main);
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}

.metric-rtt strong {
  font-weight: 700;
}

.metric-rtt .sub-metric {
  font-size: 0.75rem;
  color: var(--color-text-light);
  font-weight: normal;
}

/* 胶囊统一规范 (高度 24px, 圆角 12px) */
.density-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 12px;
  font-size: 0.76rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  box-sizing: border-box;
  white-space: nowrap;
}

.pill-green {
  background-color: var(--color-success-bg);
  color: #065F46;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.pill-blue {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  border: 1px solid rgba(74, 144, 226, 0.3);
}

.pill-orange {
  background-color: var(--color-accent-light);
  color: #92400E;
  border: 1px solid rgba(245, 166, 35, 0.3);
}

.pill-gray {
  background-color: #F1F5F9;
  color: #475569;
  border: 1px solid var(--color-border);
}

/* 一体化操作单元格 */
.action-cell-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
}

.action-tip {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  line-height: 1.2;
  white-space: nowrap;
  font-weight: 600;
}

.tbl-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  padding: 0 12px;
  border-radius: 13px;
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: var(--transition-normal);
  background: var(--color-accent);
  color: #FFFFFF !important;
  border: 1px solid var(--color-accent);
  box-shadow: 0 1px 3px rgba(245, 166, 35, 0.3);
}

.tbl-action-btn:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 3px 6px rgba(245, 166, 35, 0.4);
}

.tbl-action-btn.btn-outline {
  background: #FFFFFF;
  color: var(--color-primary) !important;
  border: 1px solid var(--color-border-hover);
  box-shadow: none;
}

.tbl-action-btn.btn-outline:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary-dark) !important;
}

.tbl-detail-pill:hover {
  background-color: var(--color-primary);
  color: #FFFFFF !important;
  border-color: var(--color-primary);
}

.tbl-tg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  padding: 0 10px;
  border-radius: 11px;
  font-size: 0.72rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  background: #E0F2FE;
  color: #0284C7 !important;
  border: 1px solid #BAE6FD;
  transition: var(--transition-normal);
  margin-top: 2px;
}

.tbl-tg-btn:hover {
  background: #0284C7;
  color: #FFFFFF !important;
  border-color: #0284C7;
  transform: translateY(-1px);
}

.nav-tg-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 30px;
  padding: 0 12px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  background: #E0F2FE;
  color: #0284C7 !important;
  border: 1px solid #BAE6FD;
  text-decoration: none;
  transition: var(--transition-normal);
}

.nav-tg-btn:hover {
  background: #0284C7;
  color: #FFFFFF !important;
  border-color: #0284C7;
  transform: translateY(-1px);
}
/* 研报索引网格 */
.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.report-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.report-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary);
}

.report-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 8px;
}

.report-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.4;
  margin-bottom: 12px;
}

.report-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.report-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
}

.report-link-btn:hover {
  gap: 10px;
}

/* 研报单页与文章样式 */
.article-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.breadcrumbs a {
  color: var(--color-text-muted);
}

.breadcrumbs a:hover {
  color: var(--color-primary);
}

.article-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.article-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text-main);
}

.article-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-top: 48px;
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary-light);
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-top: 32px;
  margin-bottom: 12px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
}

/* 科技注记框与提示 Callout */
.callout-box {
  background-color: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 28px 0;
  font-size: 0.95rem;
  color: var(--color-text-main);
}

.callout-box.warning {
  background-color: var(--color-accent-light);
  border-left-color: var(--color-accent);
}

.callout-title {
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 硬核数据表格样式 */
.data-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 30px 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  background-color: var(--color-bg-card);
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.tech-table th {
  background-color: #F8FAFC;
  color: var(--color-text-main);
  font-weight: 700;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.tech-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-main);
}

.tech-table tr:last-child td {
  border-bottom: none;
}

.tech-table tr:hover td {
  background-color: #F9FAFB;
}

.badge-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.badge-tag.tag-blue {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.badge-tag.tag-orange {
  background-color: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.badge-tag.tag-green {
  background-color: var(--color-success-bg);
  color: #065F46;
}

/* 代码高亮块 */
pre.code-block {
  background-color: #1E293B;
  color: #E2E8F0;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  margin: 24px 0;
  box-shadow: var(--shadow-md);
}

code.inline-code {
  background-color: #EEF2F6;
  color: #D97706;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.88em;
}

/* 页脚 */
.site-footer {
  margin-top: auto;
  background-color: #FFFFFF;
  border-top: 1px solid var(--color-border);
  padding: 48px 0 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

.footer-brand-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-top: 12px;
  max-width: 440px;
}

.footer-heading {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 14px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--color-text-light);
}

/* 响应式设计 */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-visual {
    order: -1;
  }
  .hero-title {
    font-size: 2rem;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
@media (max-width: 900px) {
  .site-nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .site-nav::-webkit-scrollbar {
    display: none;
  }
}

@media (max-width: 640px) {
  .header-inner {
    height: auto;
    padding: 12px 0;
    flex-wrap: wrap;
    gap: 12px;
  }
  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    justify-content: flex-start;
    gap: 6px;
    scrollbar-width: none;
  }
  .site-nav::-webkit-scrollbar {
    display: none;
  }
  .nav-status-badge {
    display: none;
  }
  .hero-title {
    font-size: 1.65rem;
  }
  .ladder-grid {
    grid-template-columns: 1fr;
  }
  .report-grid {
    grid-template-columns: 1fr;
  }
  .article-title {
    font-size: 1.65rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* W3C 规范屏幕阅读器与无障碍辅助工具类 (不改变任何视觉外观) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}