:root {
  --bg: #141413;
  --bg-surface: #1a1a18;
  --bg-hover: #222220;
  --text-primary: #faf9f5;
  --text-secondary: #b0aea5;
  --text-muted: #6b6a62;
  --border: rgba(38,37,30,0.25);
  --border-light: rgba(38,37,30,0.12);
  --accent: #8b5cf6;
  --accent-light: rgba(139,92,246,0.15);
  --shadow: rgba(0,0,0,0.14) 0 4px 16px, rgba(38,37,30,0.1) 0 0 0 1px;
  --gradient: linear-gradient(135deg, #8b5cf6, #6366f1);
  --glow: 0 0 20px rgba(139,92,246,0.2);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --green: #22c55e;
  --green-bg: rgba(34,197,94,0.12);
  --amber: #f59e0b;
  --amber-bg: rgba(245,158,11,0.12);
  --blue: #3b82f6;
  --blue-bg: rgba(59,130,246,0.12);
  --rose: #e11d48;
  --rose-bg: rgba(225,29,72,0.12);
  --cyan: #06b6d4;
  --cyan-bg: rgba(6,182,212,0.12);
  --purple: #a855f7;
  --purple-bg: rgba(168,85,247,0.12);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  padding: 32px;
}
.container { max-width: 1400px; margin: 0 auto; }

/* HEADER */
.header {
  text-align: center;
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.header h1 {
  font-size: 36px;
  font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 2px;
}
.header .subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 8px;
  letter-spacing: 1px;
}
.header .meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* SIGNAL CORE MODEL */
.signal-model {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 32px;
  border: 1px solid var(--border);
  position: relative;
}
.model-title {
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 28px;
  letter-spacing: 2px;
}
.model-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 24px;
  align-items: start;
}
.pillar {
  background: var(--bg-hover);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border);
}
.pillar.pillar-green { border-top: 3px solid var(--green); }
.pillar.pillar-amber { border-top: 3px solid var(--amber); }
.pillar.pillar-blue { border-top: 3px solid var(--blue); }
.pillar h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.pillar.pillar-green h3 { color: var(--green); }
.pillar.pillar-amber h3 { color: var(--amber); }
.pillar.pillar-blue h3 { color: var(--blue); }
.pillar-item {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 0;
  border-bottom: 1px solid var(--border-light);
  line-height: 1.5;
}
.pillar-item:last-child { border-bottom: none; }
.pillar-item strong { color: var(--text-primary); }

.center-circle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px 16px;
}
.center-ring {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow);
  margin-bottom: 16px;
}
.center-ring span {
  font-size: 22px;
  font-weight: 700;
  color: white;
  letter-spacing: 2px;
}
.center-circle .ring-labels {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}
.center-circle .ring-labels span {
  padding: 4px 12px;
  background: var(--bg-hover);
  border-radius: 20px;
  border: 1px solid var(--border-light);
}

/* COMPARISON BOX */
.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}
.compare-box {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.compare-box.surface { background: rgba(245,158,11,0.06); }
.compare-box.structural { background: rgba(34,197,94,0.06); }
.compare-box h4 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}
.compare-box.surface h4 { color: var(--amber); }
.compare-box.structural h4 { color: var(--green); }
.compare-box p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* NEWS SECTION */
.section-title {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 20px;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
  letter-spacing: 1px;
}
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

/* TAG SYSTEM */
.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  margin-right: 4px;
  margin-bottom: 4px;
}
.tag-green { background: var(--green-bg); color: var(--green); }
.tag-amber { background: var(--amber-bg); color: var(--amber); }
.tag-blue { background: var(--blue-bg); color: var(--blue); }
.tag-rose { background: var(--rose-bg); color: var(--rose); }
.tag-cyan { background: var(--cyan-bg); color: var(--cyan); }
.tag-purple { background: var(--purple-bg); color: var(--purple); }

/* SOURCE LINKS */
.source-line {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 10px;
  word-break: break-all;
}
.source-line a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}
.source-line a:hover {
  opacity: 0.7;
  text-decoration: underline;
}
.source-line .sep {
  color: var(--text-muted);
  margin: 0 2px;
}

/* NEWS CARD */
.news-card {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}
.news-card:hover { border-color: rgba(139,92,246,0.3); }
.news-card .card-header {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}
.news-card .signal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}
.signal-dot.high { background: var(--green); }
.signal-dot.medium { background: var(--amber); }
.signal-dot.low { background: var(--text-muted); }
.news-card h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  flex: 1;
}
.news-card .tags { margin-bottom: 8px; }
.news-card .excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}
.news-card .analysis-box {
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  border-left: 2px solid var(--accent);
  margin-top: 8px;
}
.news-card .analysis-box strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* SINGLE COLUMN */
.news-grid-single {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

/* IMPACT SECTION */
.impact-section {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}
.impact-title {
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--amber);
  margin-bottom: 24px;
  letter-spacing: 2px;
}
.impact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.impact-card {
  background: var(--bg-hover);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border);
}
.impact-card h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}
.impact-card.personal h4 { color: var(--cyan); }
.impact-card.market h4 { color: var(--amber); }
.impact-card ol {
  padding-left: 18px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.impact-card ol li { margin-bottom: 6px; }
.impact-card ol li strong { color: var(--text-primary); }
.impact-card .impact-tag {
  display: inline-block;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 3px;
  margin-left: 4px;
}
.impact-tag.short { background: rgba(34,197,94,0.12); color: var(--green); }
.impact-tag.mid { background: rgba(245,158,11,0.12); color: var(--amber); }
.impact-tag.long { background: rgba(59,130,246,0.12); color: var(--blue); }

/* FOOTER */
.footer {
  text-align: center;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  margin-top: 32px;
  font-size: 12px;
  color: var(--text-muted);
}
.footer a { color: var(--accent); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ============================================= */
/* RESPONSIVE: DESKTOP  (>= 1200px) — default    */
/* ============================================= */
/* (all base styles above apply as-is) */

/* ============================================= */
/* RESPONSIVE: TABLET  (768px – 1199px)          */
/* ============================================= */
@media (max-width: 1199px) {
  body { padding: 24px; }
  .container { max-width: 100%; }

  .model-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .center-circle {
    grid-column: 1 / -1;
    flex-direction: row;
    gap: 32px;
    padding: 16px 24px;
  }
  .center-ring {
    width: 90px;
    height: 90px;
    flex-shrink: 0;
    margin-bottom: 0;
  }
  .center-ring span { font-size: 18px; }
  .center-circle .ring-labels { flex-direction: row; flex-wrap: wrap; justify-content: center; }

  .news-grid { gap: 14px; }
  .impact-grid { gap: 16px; }

  .signal-model,
  .impact-section {
    padding: 28px 24px;
  }
}

/* ============================================= */
/* RESPONSIVE: MOBILE  (< 768px)                 */
/* ============================================= */
@media (max-width: 767px) {
  body { padding: 14px; }

  .header { padding: 24px 0 18px; margin-bottom: 20px; }
  .header h1 { font-size: 22px; letter-spacing: 1px; }
  .header .subtitle { font-size: 13px; }
  .header .meta { font-size: 11px; }

  .signal-model {
    padding: 20px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
  }
  .model-title { font-size: 14px; margin-bottom: 18px; }
  .model-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .center-circle {
    flex-direction: column;
    gap: 12px;
    padding: 16px 12px;
  }
  .center-ring {
    width: 80px;
    height: 80px;
  }
  .center-ring span { font-size: 16px; }
  .center-circle .ring-labels { flex-direction: column; gap: 4px; font-size: 12px; }

  .pillar { padding: 14px; }
  .pillar h3 { font-size: 13px; }
  .pillar-item { font-size: 12px; padding: 5px 0; }

  .comparison-row { grid-template-columns: 1fr; gap: 12px; margin-top: 16px; }
  .compare-box { padding: 12px 14px; }
  .compare-box h4 { font-size: 12px; }
  .compare-box p { font-size: 12px; }

  .section-title {
    font-size: 17px;
    margin: 24px 0 14px;
    padding-left: 10px;
  }

  .news-grid { grid-template-columns: 1fr; gap: 12px; margin-bottom: 16px; }

  .news-card { padding: 14px; }
  .news-card .card-header { gap: 8px; }
  .news-card h3 { font-size: 14px; }
  .news-card .excerpt { font-size: 12px; line-height: 1.5; }
  .news-card .analysis-box { font-size: 11px; padding: 8px 10px; }
  .source-line { font-size: 10px; word-break: break-all; }
  .tag { font-size: 10px; padding: 1px 6px; }

  .impact-section {
    padding: 20px 16px;
    border-radius: var(--radius-md);
  }
  .impact-title { font-size: 14px; margin-bottom: 16px; }
  .impact-grid { grid-template-columns: 1fr; gap: 12px; }
  .impact-card { padding: 14px; }
  .impact-card h4 { font-size: 13px; }
  .impact-card ol { font-size: 12px; padding-left: 14px; }

  .footer { font-size: 10px; padding: 16px 0; }
  .footer p { margin-bottom: 4px; }
}

/* ============================================= */
/* RESPONSIVE: NARROW MOBILE  (< 420px)          */
/* ============================================= */
@media (max-width: 419px) {
  body { padding: 10px; }
  .header h1 { font-size: 18px; }
  .news-card h3 { font-size: 13px; }
  .signal-model,
  .impact-section { padding: 14px 10px; }
  .news-card { padding: 10px; }
  .source-line a { display: inline-block; margin-bottom: 2px; }
}