body { font-family: 'Microsoft YaHei', Arial, sans-serif; background: #f8f9fa; color: #222; margin: 0; }
header, nav, footer { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.03); }
nav { padding: 0.5rem 2rem; display: flex; align-items: center; justify-content: space-between; }
nav ul { list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; }
nav a { color: #333; text-decoration: none; font-weight: 500; }
nav a:hover { color: #8b3dff; }
.container { max-width: 1200px; margin: 0 auto; padding: 2rem 1rem; }
h1, h2, h3, h4 { color: #8b3dff; margin-bottom: 0.5em; }
.card { background: #fff; border-radius: 10px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); padding: 2rem; margin-bottom: 2rem; }
.btn, button { background: #8b3dff; color: #fff; border: none; border-radius: 5px; padding: 0.5em 1.5em; cursor: pointer; font-size: 1rem; transition: background 0.2s; }
.btn:hover, button:hover { background: #6c2ed9; }
table { width: 100%; border-collapse: collapse; background: #fff; margin: 2rem 0; }
td, th { border: 1px solid #eee; padding: 0.75em 1em; }
th { background: #f3f0fa; color: #8b3dff; }
input, textarea, select { border: 1px solid #ccc; border-radius: 4px; padding: 0.5em; font-size: 1rem; margin-bottom: 1em; width: 100%; box-sizing: border-box; }
input:focus, textarea:focus, select:focus { outline: none; border-color: #8b3dff; box-shadow: 0 0 0 2px #e6ddfa; }
footer { text-align: center; padding: 2rem 0; color: #888; margin-top: 3rem; background: #fff; }
section { margin-bottom: 3rem; }
@media (max-width: 768px) { .container { padding: 1rem 0.5rem; } nav ul { flex-direction: column; gap: 0.5rem; } .card { padding: 1rem; } }