* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f7f5f0;
    color: #333;
    padding-bottom: 40px;
}
.sub-header {
    background: #fff;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.header-logo { height: 38px; border-radius: 6px; }
.nav-link { color: #8c6d53; text-decoration: none; font-weight: bold; }
.container { max-width: 900px; margin: 30px auto; padding: 0 20px; }
.section-desc { color: #666; margin-bottom: 20px; }
.board-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; }
.board-table th, .board-table td { padding: 12px 15px; border-bottom: 1px solid #eee; text-align: left; }
.board-table th { background: #efebe4; color: #4a3e3d; }
.file-list { list-style: none; background: #fff; border-radius: 8px; padding: 10px 20px; }
.file-item { padding: 12px 0; border-bottom: 1px solid #eee; display: flex; justify-content: space-between; }
.file-item:last-child { border-bottom: none; }