/* ========== 基础变量 ========== */
:root {
  --c-bg: #0a0a0f;
  --c-bg-alt: #12121a;
  --c-bg-card: #1a1a24;
  --c-border: rgba(255,255,255,0.08);
  --c-text: #e8e8ed;
  --c-text-dim: #9a9aa8;
  --c-text-muted: #6a6a78;

  --c-health: #4ade80;
  --c-psych: #60a5fa;
  --c-finance: #fbbf24;
  --c-fate: #c084fc;

  --c-primary: #8b5cf6;
  --c-primary-dim: rgba(139, 92, 246, 0.15);

  --radius: 12px;
  --radius-lg: 20px;

  --font-serif: 'Noto Serif SC', serif;
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

  --container: 1200px;
}

/* ========== Reset ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== 导航 ========== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(10, 10, 15, 0.7);
  border-bottom: 1px solid var(--c-border);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
}
.logo-mark {
  font-size: 22px;
  color: var(--c-primary);
  animation: spin 20s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 14px;
  color: var(--c-text-dim);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--c-text); }

.nav-toggle { display: none; }
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--c-text);
  margin: 4px 0;
  transition: 0.3s;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg canvas {
  width: 100%;
  height: 100%;
  opacity: 0.4;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 70%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}
.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--c-border);
  border-radius: 100px;
  font-size: 13px;
  color: var(--c-text-dim);
  margin-bottom: 32px;
  background: rgba(255,255,255,0.02);
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--c-health), var(--c-psych), var(--c-finance), var(--c-fate));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--c-text-dim);
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 64px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.3s;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--c-primary);
  color: white;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(139, 92, 246, 0.4);
}
.btn-ghost {
  color: var(--c-text);
  border-color: var(--c-border);
}
.btn-ghost:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.btn-outline {
  color: var(--c-text);
  border: 1px solid var(--c-border);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 600px;
  margin: 0 auto;
}
.stat { text-align: center; }
.stat-num {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-fate));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 12px;
  color: var(--c-text-muted);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--c-text-muted);
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--c-text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ========== Section 通用 ========== */
section { padding: 120px 0; }
.section-head {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-primary);
  margin-bottom: 16px;
  font-weight: 500;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  margin-bottom: 16px;
}
.section-head p {
  color: var(--c-text-dim);
  font-size: 16px;
}

/* ========== 四维雷达卡片 ========== */
.radar-section { background: var(--c-bg-alt); }
.radar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.radar-card {
  padding: 32px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}
.radar-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.3s;
}
.radar-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.15);
}
.radar-card:hover::before { opacity: 1; }

.card-health::before { background: var(--c-health); }
.card-psych::before { background: var(--c-psych); }
.card-finance::before { background: var(--c-finance); }
.card-fate::before { background: var(--c-fate); }

.card-icon {
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  margin-bottom: 20px;
}
.card-health .card-icon { background: rgba(74, 222, 128, 0.12); color: var(--c-health); }
.card-psych .card-icon { background: rgba(96, 165, 250, 0.12); color: var(--c-psych); }
.card-finance .card-icon { background: rgba(251, 191, 36, 0.12); color: var(--c-finance); }
.card-fate .card-icon { background: rgba(192, 132, 252, 0.12); color: var(--c-fate); }
.card-icon svg { width: 24px; height: 24px; }

.radar-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 12px;
}
.radar-card p {
  color: var(--c-text-dim);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.card-tags span {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(255,255,255,0.04);
  color: var(--c-text-muted);
}
.card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-primary);
  transition: gap 0.2s;
}

.author-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  margin-bottom: 18px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.025);
}
.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 20%;
  border: 2px solid rgba(139,92,246,0.45);
}
.author-card strong, .author-card span { display: block; }
.author-card strong { font-family: var(--font-serif); font-size: 16px; }
.author-card span { color: var(--c-text-dim); font-size: 12px; margin-top: 2px; }

/* ========== 关于我 ========== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin-bottom: 40px;
  line-height: 1.3;
}

.about-timeline {
  position: relative;
  padding-left: 28px;
  margin-bottom: 40px;
}
.about-timeline::before {
  content: '';
  position: absolute;
  left: 6px; top: 8px; bottom: 8px;
  width: 2px;
  background: var(--c-border);
}
.timeline-item {
  position: relative;
  padding-bottom: 28px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px; top: 8px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 2px solid var(--c-primary);
}
.timeline-item.now::before {
  background: var(--c-primary);
  box-shadow: 0 0 0 4px var(--c-primary-dim);
}
.timeline-year {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 4px;
}
.timeline-content h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 4px;
}
.timeline-content p {
  font-size: 14px;
  color: var(--c-text-dim);
}

.cert-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.cert {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--c-primary-dim);
  color: var(--c-primary);
  border: 1px solid rgba(139,92,246,0.3);
}
.cert-progress {
  background: rgba(255,255,255,0.03);
  color: var(--c-text-dim);
  border-color: var(--c-border);
  font-style: italic;
}

/* 雷达图卡片 */
.radar-chart-card {
  position: sticky;
  top: 100px;
  padding: 32px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
}
.radar-chart-card h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  margin-bottom: 24px;
  text-align: center;
}
#personalRadar {
  display: block;
  margin: 0 auto;
  max-width: 100%;
}
.radar-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}
.radar-legend > div {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-text-dim);
}
.radar-legend em {
  font-style: normal;
  color: var(--c-text);
  font-weight: 500;
  margin-left: auto;
}
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-health { background: var(--c-health); }
.dot-psych { background: var(--c-psych); }
.dot-finance { background: var(--c-finance); }
.dot-fate { background: var(--c-fate); }

.radar-note {
  margin-top: 16px;
  font-size: 12px;
  color: var(--c-text-muted);
  text-align: center;
}

/* ========== 文章列表 ========== */
.posts-section { background: var(--c-bg-alt); }
.post-filters {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-btn {
  padding: 8px 20px;
  font-size: 13px;
  border-radius: 100px;
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
  transition: all 0.2s;
}
.filter-btn:hover {
  color: var(--c-text);
  border-color: rgba(255,255,255,0.2);
}
.filter-btn.active {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: white;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.post-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s;
}
.post-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.15);
}
.post-cover {
  height: 180px;
  position: relative;
  overflow: hidden;
}
.post-cover canvas {
  width: 100%; height: 100%;
}
.post-cover-category {
  position: absolute;
  top: 12px; left: 12px;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 100px;
  font-weight: 500;
  backdrop-filter: blur(10px);
}
.cat-health { background: rgba(74,222,128,0.2); color: var(--c-health); }
.cat-psych { background: rgba(96,165,250,0.2); color: var(--c-psych); }
.cat-finance { background: rgba(251,191,36,0.2); color: var(--c-finance); }
.cat-fate { background: rgba(192,132,252,0.2); color: var(--c-fate); }
.cat-ai { background: rgba(139,92,246,0.2); color: var(--c-primary); }

.post-body {
  padding: 24px;
}
.post-date {
  font-size: 12px;
  color: var(--c-text-muted);
  margin-bottom: 8px;
}
.post-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 12px;
  color: var(--c-text);
}
.post-excerpt {
  font-size: 14px;
  color: var(--c-text-dim);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-title a:hover { color: var(--c-primary); }
.post-read-link {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  margin-top: 18px;
  font-size: 13px;
  color: var(--c-primary);
}
.post-read-link span { transition: transform .2s; }
.post-read-link:hover span { transform: translateX(3px); }

/* ========== 文章详情 ========== */
.article-root { min-height: calc(100vh - 160px); }
.article-shell { width: min(760px, calc(100% - 48px)); margin: 0 auto; }
.article-hero { padding: 150px 0 70px; border-bottom: 1px solid var(--c-border); background: var(--c-bg-alt); }
.article-hero.cat-finance { box-shadow: inset 0 -2px 0 var(--c-finance); }
.article-hero.cat-psych { box-shadow: inset 0 -2px 0 var(--c-psych); }
.article-hero.cat-health { box-shadow: inset 0 -2px 0 var(--c-health); }
.article-hero.cat-fate, .article-hero.cat-ai { box-shadow: inset 0 -2px 0 var(--c-fate); }
.article-back { display: inline-block; color: var(--c-text-dim); font-size: 14px; margin-bottom: 36px; }
.article-back:hover { color: var(--c-primary); }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-size: 13px; color: var(--c-text-muted); }
.article-meta span:first-child { color: var(--c-primary); }
.article-hero h1 { font-family: var(--font-serif); font-size: clamp(30px, 5vw, 52px); line-height: 1.3; margin: 18px 0; }
.article-hero > .article-shell > p { color: var(--c-text-dim); font-size: 17px; line-height: 1.8; }
.article-author { display: flex; align-items: center; gap: 10px; margin-top: 28px; }
.article-author img { width: 38px; height: 38px; border-radius: 50%; object-fit: cover; object-position: 50% 20%; }
.article-author strong, .article-author span { display: block; }
.article-author strong { font-size: 13px; }
.article-author span { color: var(--c-text-muted); font-size: 12px; }
.article-content { padding: 64px 0 28px; color: #d6d6df; font-size: 17px; line-height: 2; }
.article-content p { margin-bottom: 1.4em; }
.article-content h2 { font-family: var(--font-serif); color: var(--c-text); font-size: 25px; line-height: 1.4; margin: 2.1em 0 .7em; }
.article-note { padding: 20px 24px; margin-bottom: 42px; border-left: 3px solid var(--c-primary); background: var(--c-bg-card); color: var(--c-text-dim); font-size: 13px; }
.article-note strong { display: block; color: var(--c-text); margin-bottom: 5px; }
.article-note p { margin: 0; line-height: 1.8; }
.article-end { padding-bottom: 90px; }
.article-missing { padding: 200px 0 120px; text-align: center; }
.article-missing h1 { font-family: var(--font-serif); margin: 0 0 28px; }

.posts-more { text-align: center; }

/* ========== 订阅 ========== */
.subscribe-section { padding: 80px 0; }
.subscribe-box {
  position: relative;
  padding: 64px;
  background: linear-gradient(135deg, var(--c-primary-dim), rgba(192,132,252,0.08));
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: var(--radius-lg);
  text-align: center;
  overflow: hidden;
}
.subscribe-box::before {
  content: '';
  position: absolute;
  top: -50%; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.subscribe-text {
  position: relative;
  z-index: 1;
}
.subscribe-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  margin-bottom: 12px;
}
.subscribe-text p {
  color: var(--c-text-dim);
  margin-bottom: 32px;
  font-size: 16px;
}
.subscribe-form {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 12px;
  max-width: 440px;
  margin: 0 auto 16px;
}
.subscribe-form input {
  flex: 1;
  padding: 14px 20px;
  border: 1px solid var(--c-border);
  border-radius: 100px;
  background: rgba(0,0,0,0.3);
  color: var(--c-text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.subscribe-form input:focus { border-color: var(--c-primary); }
.subscribe-form button {
  padding: 14px 32px;
  border-radius: 100px;
  background: var(--c-primary);
  color: white;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s;
}
.subscribe-form button:hover { background: #7c3aed; }
.subscribe-note {
  position: relative;
  z-index: 1;
  font-size: 12px;
  color: var(--c-text-muted);
}

/* ========== 页脚 ========== */
.footer {
  border-top: 1px solid var(--c-border);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--c-text-dim);
}
.footer-col h5 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--c-text-dim);
  padding: 6px 0;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--c-primary); }
.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--c-border);
  text-align: center;
  font-size: 13px;
  color: var(--c-text-muted);
}

/* ========== 响应式 ========== */
@media (max-width: 960px) {
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 1px);
    left: 0; right: 0;
    padding: 16px 24px 20px;
    flex-direction: column;
    gap: 10px;
    border-bottom: 1px solid var(--c-border);
    background: rgba(10, 10, 15, 0.98);
  }
  .nav-links.mobile-open { display: flex; }
  .nav-toggle { display: block; }

  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .radar-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .radar-chart-card { position: static; }
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  section { padding: 80px 0; }
  .radar-grid { grid-template-columns: 1fr; }
  .posts-grid { grid-template-columns: 1fr; }
  .subscribe-box { padding: 40px 24px; }
  .subscribe-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .radar-legend { grid-template-columns: 1fr; }
  .article-hero { padding: 120px 0 50px; }
  .article-content { padding-top: 42px; font-size: 16px; }
  .article-content h2 { font-size: 22px; }
}