/* style.css */
:root {
    --primary: #1a3a5f;    /* 深藍色：代表穩定與專業 */
    --secondary: #0056b3;  /* 亮藍色：科技感 */
    --accent: #d1d1d1;     /* 銀灰色：代表鋁材 */
    --text: #333;
    --light: #f8f9fa;
}

body { font-family: "Microsoft JhengHei", sans-serif; margin: 0; color: var(--text); line-height: 1.6; }
.container { max-width: 1100px; margin: auto; padding: 40px 20px; }

/* 導覽列 */
header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.1); sticky; top: 0; z-index: 1000; }
.nav-container { display: flex; justify-content: space-between; align-items: center; padding: 15px 5%; }
.logo { font-size: 22px; font-weight: bold; color: var(--primary); text-decoration: none; }
nav ul { display: flex; list-style: none; gap: 25px; margin: 0; }
nav a { text-decoration: none; color: var(--text); font-weight: 500; transition: 0.3s; }
nav a:hover, nav a.active { color: var(--secondary); }

/* 頁面標頭 */
.page-banner { background: linear-gradient(45deg, var(--primary), var(--secondary)); color: white; padding: 60px 5%; text-align: center; }

/* 頁尾 */
footer { background: #222; color: #bbb; padding: 40px 5%; text-align: center; }
footer h4 { color: #fff; margin-bottom: 10px; }

/* 圖片通用樣式 */
img { max-width: 100%; height: auto; display: block; }
.full-width-img { width: 100%; border-radius: 8px; }

/* 表格與列表樣式 */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.card { background: var(--light); padding: 25px; border-radius: 8px; border-top: 4px solid var(--secondary); text-align: center; }
.equipment-list ul { text-align: left; display: inline-block; }