/* =================================================================
   Social Problem Map — 「星河·社会问题地图」主题
   设计理念: 夜空中的星辰 = 待被看见的社会问题
   配色: 深夜蓝黑底 + 暖橙金渐变 + 玫瑰红点缀
   ================================================================= */

:root {
  --spm-bg-deep: #0a0e1a;
  --spm-bg-mid: #111827;
  --spm-bg-card: #1a2235;
  --spm-bg-elevated: #232b3e;
  --spm-border: rgba(230, 138, 46, 0.15);
  --spm-border-strong: rgba(230, 138, 46, 0.35);
  --spm-text-primary: #f5f5f7;
  --spm-text-secondary: #b4b8c5;
  --spm-text-muted: #6b7280;
  --spm-accent: #e68a2e;
  --spm-accent-light: #f5b974;
  --spm-accent-glow: rgba(230, 138, 46, 0.4);
  --spm-rose: #e84a5f;
  --spm-cyan: #4ec9d4;
  --spm-purple: #8b5cf6;
  --spm-emerald: #10b981;
  --spm-gradient: linear-gradient(135deg, #e68a2e 0%, #f5b974 50%, #e84a5f 100%);
  --spm-gradient-soft: linear-gradient(135deg, rgba(230,138,46,0.1) 0%, rgba(232,74,95,0.1) 100%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body.spm-body {
  background: var(--spm-bg-deep);
  color: var(--spm-text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* === 星空背景 === */
.spm-starfield {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(139,92,246,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(230,138,46,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(78,201,212,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 100%, rgba(232,74,95,0.1) 0%, transparent 50%);
}

.spm-starfield::before,
.spm-starfield::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20px 30px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 60px 70px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 150px 120px, rgba(245,185,116,0.7), transparent),
    radial-gradient(1px 1px at 230px 50px, rgba(255,255,255,0.4), transparent),
    radial-gradient(2px 2px at 280px 200px, rgba(232,74,95,0.5), transparent),
    radial-gradient(1px 1px at 350px 150px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 420px 80px, rgba(139,92,246,0.6), transparent);
  background-size: 500px 300px;
  background-repeat: repeat;
  opacity: 0.6;
  animation: spm-twinkle 6s ease-in-out infinite;
}

.spm-starfield::after {
  background-size: 700px 400px;
  animation-delay: -3s;
  opacity: 0.4;
}

@keyframes spm-twinkle {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.85; }
}

.spm-container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* === Header 顶部导航 === */
.spm-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--spm-border);
}

.spm-header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.spm-header-brand .spm-logo {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--spm-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
  box-shadow: 0 0 24px var(--spm-accent-glow);
}

.spm-header-nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
}

.spm-header-nav a {
  color: var(--spm-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.spm-header-nav a:hover { color: var(--spm-accent-light); }

/* === Hero 头图 === */
.spm-hero {
  padding: 64px 0 56px;
  text-align: center;
}

.spm-hero-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  background: var(--spm-gradient-soft);
  border: 1px solid var(--spm-border-strong);
  color: var(--spm-accent-light);
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.spm-hero-title {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.spm-hero-title .spm-highlight {
  background: var(--spm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.spm-hero-subtitle {
  font-size: 18px;
  color: var(--spm-text-secondary);
  max-width: 720px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.spm-hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 48px;
}

.spm-hero-stat {
  text-align: center;
}

.spm-hero-stat-num {
  font-size: 42px;
  font-weight: 800;
  background: var(--spm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.spm-hero-stat-label {
  font-size: 13px;
  color: var(--spm-text-muted);
  margin-top: 8px;
  letter-spacing: 1px;
}

/* === Section 区块 === */
.spm-section {
  margin-top: 64px;
}

.spm-section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--spm-border);
}

.spm-section-title {
  font-size: 24px;
  font-weight: 700;
}

.spm-section-sub {
  font-size: 13px;
  color: var(--spm-text-muted);
  letter-spacing: 0.5px;
}

/* === Category Pill Tabs === */
.spm-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.spm-pill {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--spm-bg-card);
  border: 1px solid var(--spm-border);
  color: var(--spm-text-secondary);
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}

.spm-pill:hover {
  background: var(--spm-bg-elevated);
  color: var(--spm-accent-light);
  border-color: var(--spm-border-strong);
}

.spm-pill.is-active {
  background: var(--spm-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px var(--spm-accent-glow);
}

/* === Grid 卡片网格 === */
.spm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.spm-card {
  position: relative;
  display: block;
  padding: 24px;
  border-radius: 16px;
  background: var(--spm-bg-card);
  border: 1px solid var(--spm-border);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.spm-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--spm-gradient-soft);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.spm-card:hover {
  transform: translateY(-4px);
  border-color: var(--spm-border-strong);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 32px var(--spm-accent-glow);
}

.spm-card:hover::before { opacity: 1; }

.spm-card-code {
  display: inline-block;
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--spm-accent-light);
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(230,138,46,0.12);
  margin-bottom: 12px;
}

.spm-card-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.spm-card-category {
  display: inline-block;
  font-size: 12px;
  color: var(--spm-text-muted);
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--spm-bg-elevated);
  margin-bottom: 12px;
}

.spm-card-desc {
  font-size: 13px;
  color: var(--spm-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.spm-card-arrow {
  margin-top: 16px;
  font-size: 13px;
  color: var(--spm-accent-light);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  position: relative;
  z-index: 1;
  transition: gap 0.2s;
}

.spm-card:hover .spm-card-arrow { gap: 10px; }

/* === Category Hero (分类页) === */
.spm-cat-hero {
  padding: 48px 0;
  text-align: center;
  border-bottom: 1px solid var(--spm-border);
  margin-bottom: 40px;
}

/* === Detail 详情页 === */
.spm-breadcrumb {
  font-size: 13px;
  color: var(--spm-text-muted);
  margin-bottom: 24px;
}

.spm-breadcrumb a {
  color: var(--spm-text-secondary);
  text-decoration: none;
}

.spm-breadcrumb a:hover { color: var(--spm-accent-light); }

.spm-detail-hero {
  padding: 32px 0 40px;
  border-bottom: 1px solid var(--spm-border);
}

.spm-detail-code {
  display: inline-block;
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--spm-accent-light);
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(230,138,46,0.12);
  margin-bottom: 16px;
}

.spm-detail-title {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.spm-detail-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--spm-text-muted);
  font-size: 14px;
}

.spm-detail-body {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  margin-top: 40px;
}

@media (max-width: 900px) {
  .spm-detail-body { grid-template-columns: 1fr; gap: 32px; }
}

.spm-detail-main {
  font-size: 16px;
  line-height: 1.85;
  color: var(--spm-text-secondary);
}

.spm-detail-main h2 {
  color: var(--spm-text-primary);
  font-size: 22px;
  font-weight: 700;
  margin: 32px 0 16px;
  padding-left: 12px;
  border-left: 3px solid var(--spm-accent);
}

.spm-detail-main h2:first-child { margin-top: 0; }

.spm-detail-main p {
  margin-bottom: 16px;
}

.spm-detail-main blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--spm-gradient-soft);
  border-left: 3px solid var(--spm-accent);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--spm-text-primary);
}

/* === Detail Sidebar === */
.spm-detail-aside {
  position: sticky;
  top: 24px;
  align-self: start;
}

.spm-aside-card {
  padding: 24px;
  border-radius: 16px;
  background: var(--spm-bg-card);
  border: 1px solid var(--spm-border);
  margin-bottom: 16px;
}

.spm-aside-title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--spm-text-muted);
  margin-bottom: 12px;
}

.spm-aside-list {
  list-style: none;
}

.spm-aside-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--spm-border);
  font-size: 14px;
}

.spm-aside-list li:last-child { border-bottom: none; }

.spm-aside-list a {
  color: var(--spm-text-secondary);
  text-decoration: none;
  display: block;
  transition: color 0.2s;
}

.spm-aside-list a:hover { color: var(--spm-accent-light); }

.spm-cta {
  display: block;
  padding: 14px 24px;
  border-radius: 100px;
  background: var(--spm-gradient);
  color: #fff;
  text-decoration: none;
  text-align: center;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.5px;
  box-shadow: 0 8px 24px var(--spm-accent-glow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.spm-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px var(--spm-accent-glow);
  color: #fff;
}

.spm-cta-secondary {
  background: var(--spm-bg-elevated);
  box-shadow: none;
  border: 1px solid var(--spm-border-strong);
  margin-top: 8px;
}

.spm-cta-secondary:hover {
  background: var(--spm-bg-card);
  box-shadow: 0 0 24px rgba(230,138,46,0.2);
}

/* === Tags === */
.spm-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.spm-tag {
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--spm-bg-elevated);
  font-size: 12px;
  color: var(--spm-text-secondary);
}

/* === Market Space cards (市场空间列表) === */
.spm-ms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 8px;
}

.spm-ms-card {
  display: block;
  padding: 20px;
  border-radius: 14px;
  background: var(--spm-bg-elevated);
  border: 1px solid var(--spm-border-strong);
  text-decoration: none;
  color: inherit;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.spm-ms-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--spm-gradient);
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
  z-index: 0;
}

.spm-ms-card > * { position: relative; z-index: 1; }

.spm-ms-card:hover {
  transform: translateY(-3px);
  border-color: var(--spm-accent);
  box-shadow: 0 16px 32px rgba(0,0,0,0.4), 0 0 24px var(--spm-accent-glow);
}

.spm-ms-card:hover::before { opacity: 0.08; }

.spm-ms-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.spm-ms-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--spm-gradient);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
}

.spm-ms-evidence {
  font-size: 11px;
  color: var(--spm-cyan);
  font-family: 'SF Mono', Menlo, monospace;
}

.spm-ms-card-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--spm-text-primary);
}

.spm-ms-card-summary {
  font-size: 13px;
  color: var(--spm-text-secondary);
  line-height: 1.55;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.spm-ms-card-arrow {
  font-size: 12px;
  color: var(--spm-accent-light);
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: gap 0.2s;
}

@media (max-width: 640px) {
  .spm-ms-grid { grid-template-columns: 1fr; }
}

/* === Footer === */
.spm-footer {
  margin-top: 80px;
  padding: 32px 0;
  border-top: 1px solid var(--spm-border);
  text-align: center;
  color: var(--spm-text-muted);
  font-size: 13px;
}

.spm-footer a { color: var(--spm-text-secondary); text-decoration: none; }
.spm-footer a:hover { color: var(--spm-accent-light); }

/* === Home banner entry (嵌入到 index.html 顶部) === */
.spm-home-banner {
  display: block;
  position: relative;
  padding: 28px 32px;
  margin: 0 0 24px;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(10,14,26,0.92) 0%, rgba(26,34,53,0.92) 100%),
    radial-gradient(circle at 90% 50%, rgba(230,138,46,0.4), transparent 60%);
  border: 1px solid var(--spm-border-strong);
  color: var(--spm-text-primary);
  text-decoration: none;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.spm-home-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 30% 40%, rgba(245,185,116,0.8), transparent),
    radial-gradient(1px 1px at 70% 70%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 85% 25%, rgba(255,255,255,0.5), transparent),
    radial-gradient(2px 2px at 15% 80%, rgba(232,74,95,0.5), transparent);
  pointer-events: none;
  opacity: 0.7;
}

.spm-home-banner-content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.spm-home-banner-text { flex: 1; min-width: 240px; }

.spm-home-banner-eyebrow {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--spm-accent-light);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.spm-home-banner-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
}

.spm-home-banner-desc {
  font-size: 14px;
  color: var(--spm-text-secondary);
  line-height: 1.6;
}

.spm-home-banner-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 100px;
  background: var(--spm-gradient);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 4px 16px var(--spm-accent-glow);
  white-space: nowrap;
  transition: transform 0.2s, box-shadow 0.2s;
}

.spm-home-banner:hover .spm-home-banner-cta {
  transform: translateX(4px);
  box-shadow: 0 8px 24px var(--spm-accent-glow);
}

.spm-home-banner-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--spm-emerald);
  margin-right: 6px;
  vertical-align: middle;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: spm-pulse 2s ease-in-out infinite;
}

@keyframes spm-pulse {
  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); }
}

.spm-home-banner-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--spm-text-secondary);
  flex-wrap: wrap;
}

.spm-home-banner-stats strong {
  color: var(--spm-accent-light);
  font-weight: 800;
  font-size: 15px;
}

.spm-home-banner-divider {
  display: inline-block;
  width: 1px;
  height: 12px;
  background: var(--spm-border-strong);
}

/* === Mobile Responsive === */
@media (max-width: 640px) {
  .spm-container { padding: 20px 16px 60px; }
  .spm-hero { padding: 40px 0 32px; }
  .spm-hero-stats { gap: 24px; }
  .spm-hero-stat-num { font-size: 32px; }
  .spm-grid { grid-template-columns: 1fr; gap: 14px; }
  .spm-card { padding: 20px; }
  .spm-header-nav { gap: 16px; font-size: 13px; }
}

/* === Print friendly === */
@media print {
  body.spm-body { background: #fff; color: #000; }
  .spm-starfield, .spm-card-arrow, .spm-cta { display: none; }
}

/* === Evidence Block (嵌入 chance.html 的市场空间证据区块) === */
.b-evidence-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.b-evidence-stat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
}

.b-evidence-stat strong {
  font-weight: 800;
  font-size: 14px;
}

.b-evidence-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.b-evidence-item {
  padding: 14px 16px;
  background: #fafbfc;
  border-radius: 0 8px 8px 0;
  transition: background 0.2s;
}

.b-evidence-item:hover {
  background: #f3f4f6;
}

.b-evidence-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 12px;
  color: #6b7280;
}

.b-evidence-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.b-evidence-date {
  font-family: 'SF Mono', Menlo, monospace;
}

.b-evidence-source strong {
  color: #374151;
}

.b-evidence-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: #1f2937;
  margin-bottom: 4px;
}

.b-evidence-supports {
  font-size: 13px;
  color: #4b5563;
  line-height: 1.6;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed #e5e7eb;
}