:root {
  --bg: #f4f7f6;
  --ink: #12201c;
  --muted: #5b6b66;
  --card: #ffffff;
  --line: #d7e3df;
  --accent: #0b7a6a;
  --accent-soft: rgba(11, 122, 106, 0.12);
}
[data-theme="dark"] {
  --bg: #0f1a17;
  --ink: #e8f4f0;
  --muted: #9bb0a8;
  --card: #16241f;
  --line: #243832;
  --accent: #3dceb6;
  --accent-soft: rgba(61, 206, 182, 0.16);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "Noto Sans TC", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}
a { color: var(--accent); }
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 20px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.logo { font-weight: 700; text-decoration: none; color: var(--ink); }
.top nav { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.top nav a { text-decoration: none; color: var(--muted); font-size: 14px; }
#theme-toggle {
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  padding: 6px 10px; cursor: pointer; font: inherit;
}
.hero, .section { width: min(960px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0; }
.kicker { text-transform: uppercase; letter-spacing: .08em; font-size: 12px; color: var(--muted); }
.hero h1 { font-size: clamp(2rem, 6vw, 3.2rem); margin: 8px 0; letter-spacing: -.02em; }
.pitch { font-size: 1.2rem; margin: 0 0 10px; }
.bio { color: var(--muted); max-width: 48ch; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.btn {
  display: inline-flex; align-items: center; padding: 10px 16px;
  background: var(--accent); color: #fff; text-decoration: none; font-weight: 600;
}
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.section-head { display: flex; justify-content: space-between; gap: 12px; align-items: end; flex-wrap: wrap; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  padding: 6px 12px; cursor: pointer; font: inherit;
}
.chip.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 18px; }
.card {
  background: var(--card); border: 1px solid var(--line); padding: 16px;
  display: flex; flex-direction: column; gap: 8px; min-height: 160px;
}
.card h3 { margin: 0; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 14px; flex: 1; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-size: 12px; padding: 2px 8px; background: var(--accent-soft); color: var(--accent); }
.skills { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.skills li { padding: 8px 12px; border: 1px solid var(--line); background: var(--card); }
.foot { text-align: center; padding: 28px 16px 40px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }