/* ── Reset & Variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #f5f6fa;
  --bg-alt:   #eef0f7;
  --surface:  #ffffff;
  --navy:     #2d3a8c;
  --brain:    #2d3a8c;
  --hand:     #8b7527;
  --heart:    #2a7a4b;
  --accent:   #3d52c4;
  --text:     #1a1a2e;
  --muted:    #6b7280;
  --border:   #e2e5f0;
  --radius:   14px;
  --font:     'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }

/* ── Navbar ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
.navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.08); }
.nav-inner {
  max-width: 1080px; margin: auto; padding: 0 2rem;
  height: 60px; display: flex; align-items: center; justify-content: space-between;
}
.logo { font-size: 1rem; font-weight: 700; color: var(--navy); }
.nav-links { list-style: none; display: flex; gap: 2rem; }
.nav-links a { color: var(--muted); font-size: .88rem; transition: color .2s; }
.nav-links a:hover { color: var(--navy); text-decoration: none; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--navy); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 7rem 2rem 5rem;
  background: linear-gradient(160deg, #1a237e 0%, #283593 40%, #3949ab 70%, #5c6bc0 100%);
  color: #fff;
}
.hero-content { max-width: 680px; }
.hero-tag {
  display: inline-block;
  font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 100px; padding: .3rem 1.1rem; margin-bottom: 1.8rem;
  color: rgba(255,255,255,.85);
}
.hero h1 {
  font-size: clamp(2rem, 5.5vw, 3.4rem);
  font-weight: 800; line-height: 1.2; margin-bottom: .8rem; letter-spacing: -.01em;
}
.accent { color: #90caf9; }
.hero-name { font-size: 1rem; color: rgba(255,255,255,.75); margin-bottom: 1.2rem; }
.hero-tags {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: .5rem; font-size: .88rem; color: rgba(255,255,255,.8); margin-bottom: 2rem;
}
.dot { color: #90caf9; font-size: .6rem; }
.hero-avatar {
  margin: 0 auto 2rem;
  width: 110px; height: 110px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,.5);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
}
.hero-avatar img { width: 100%; height: 100%; object-fit: cover; }

.btn {
  display: inline-block; background: #fff; color: var(--navy);
  padding: .75rem 2.2rem; border-radius: 100px; font-weight: 700; font-size: .95rem;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 4px 20px rgba(0,0,0,.25);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.3); text-decoration: none; color: var(--navy); }

/* ── Sections ── */
.section { padding: 5rem 2rem; }
.section-alt { background: var(--bg-alt); }
.container { max-width: 1080px; margin: auto; }
.section-title {
  font-size: clamp(1.5rem, 3.5vw, 2rem); font-weight: 800;
  text-align: center; margin-bottom: .6rem; color: var(--navy);
}
.section-sub { text-align: center; color: var(--muted); margin-bottom: 3rem; font-size: .95rem; line-height: 1.8; }

/* ── Fade-in ── */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .55s ease, transform .55s ease; }
.fade-in.visible { opacity: 1; transform: none; }

/* ── Pillar Cards ── */
.pillar {
  display: grid;
  grid-template-columns: 180px 1fr 200px;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 16px rgba(0,0,0,.07);
}
.pillar-label {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 2rem 1rem; color: #fff; text-align: center;
}
.pillar-icon { font-size: 2.2rem; margin-bottom: .4rem; }
.pillar-word { font-size: 2rem; font-weight: 900; letter-spacing: .05em; }
.pillar-desc { font-size: .75rem; opacity: .85; margin-top: .3rem; }

.pillar-brain .pillar-label { background: var(--brain); }
.pillar-hand  .pillar-label { background: var(--hand); }
.pillar-heart .pillar-label { background: var(--heart); }

.pillar-body {
  background: var(--surface); padding: 1.8rem 2rem;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.pillar-body h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: .9rem; color: var(--text); }
.pillar-body ul { display: flex; flex-direction: column; gap: .5rem; }
.pillar-body li { font-size: .9rem; color: var(--muted); padding-left: 1rem; position: relative; }
.pillar-body li::before { content: '•'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.pillar-tags {
  background: #f8f9fe; padding: 1.8rem 1.5rem;
  border: 1px solid var(--border);
  display: flex; flex-direction: column; justify-content: center;
}
.tag-title { font-size: .72rem; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; margin-bottom: .75rem; }
.tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.pillar-brain .tags span { background: #e8eaf6; color: var(--brain); }
.pillar-hand  .tags span { background: #fdf8e1; color: #6d5c1a; }
.pillar-heart .tags span { background: #e8f5e9; color: var(--heart); }
.tags span {
  font-size: .78rem; font-weight: 600;
  padding: .25rem .75rem; border-radius: 100px;
}

/* ── Quadrant ── */
.quadrant-wrap {
  display: flex; align-items: center; gap: 1rem;
  max-width: 680px; margin: auto;
}
.q-axis-y {
  display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  font-size: .75rem; color: var(--muted); writing-mode: vertical-rl;
  text-orientation: mixed; height: 340px; padding: .5rem 0;
  gap: .5rem;
}
.q-axis-y span:nth-child(2) { writing-mode: vertical-rl; font-size: .8rem; color: var(--navy); font-weight: 600; }
.q-axis-x {
  display: flex; justify-content: space-between; align-items: center;
  font-size: .75rem; color: var(--muted); margin-top: .5rem; padding: 0 .5rem;
}
.q-axis-x span:nth-child(2) { font-size: .8rem; color: var(--navy); font-weight: 600; }

.quadrant-grid {
  flex: 1;
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
  gap: 4px; background: var(--border); border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
}
.q-cell {
  background: var(--surface); padding: 1.8rem 1.2rem;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; position: relative;
}
.q-icon { font-size: 1.8rem; margin-bottom: .5rem; }
.q-name { font-size: .9rem; font-weight: 700; color: var(--text); }
.q-label { font-size: .72rem; color: var(--muted); margin-top: .2rem; }
.q-star { background: var(--navy) !important; color: #fff; }
.q-star .q-name { color: #fff; }
.q-star .q-label { color: rgba(255,255,255,.7); }
.star {
  position: absolute; top: .7rem; right: .9rem;
  color: #ffd700; font-size: 1.2rem;
}
.q-a { background: #f0f2ff; }
.q-d { background: #fafafa; }
.q-b { background: #f4f4f4; }

/* ── Compare Table ── */
.compare-table { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 16px rgba(0,0,0,.07); }
thead tr { background: #f0f2ff; }
th { padding: 1rem 1.4rem; font-size: .88rem; color: var(--navy); font-weight: 700; text-align: left; }
th.th-highlight { background: var(--navy); color: #fff; }
td { padding: .9rem 1.4rem; font-size: .88rem; color: var(--muted); border-top: 1px solid var(--border); }
td:first-child { color: var(--text); font-weight: 500; white-space: nowrap; }
td.td-highlight { color: var(--navy); background: #f0f2ff; }
.row-icon { margin-right: .4rem; }
tbody tr:hover td { background: #f8f9ff; }
tbody tr:hover td.td-highlight { background: #e8eaf6; }

/* ── Contact ── */
.contact-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem; max-width: 860px; margin: auto;
}
.contact-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem 1.75rem; display: flex; align-items: flex-start; gap: 1rem;
  transition: border-color .2s, transform .2s; color: var(--text);
}
.contact-item:hover { border-color: var(--accent); transform: translateY(-3px); text-decoration: none; }
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-label { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: .25rem; }
.contact-item p { font-size: .95rem; color: var(--text); }

/* ── Footer ── */
.footer { text-align: center; padding: 2rem; color: var(--muted); font-size: .85rem; border-top: 1px solid var(--border); background: var(--surface); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .pillar { grid-template-columns: 1fr; }
  .pillar-label { flex-direction: row; padding: 1.2rem 1.5rem; gap: 1rem; justify-content: flex-start; }
  .pillar-word { font-size: 1.5rem; }
  .pillar-tags { border-top: 1px solid var(--border); }
  .quadrant-wrap { flex-direction: column; }
  .q-axis-y { writing-mode: horizontal-tb; height: auto; flex-direction: row; width: 100%; }
  .q-axis-y span:nth-child(2) { writing-mode: horizontal-tb; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: #fff; padding: 1rem 2rem; gap: 1rem; border-bottom: 1px solid var(--border); }
}