* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Arial;
    line-height: 1.6;
    color: #333;
}

/* Header */
header {
    background: #0a2540;
    color: white;
    padding: 20px 40px;
    position: sticky;
    top: 0;
}

nav a {
    color: white;
    margin-right: 20px;
    text-decoration: none;
}

/* Hero */
.hero {
    background: linear-gradient(rgba(10,37,64,0.7), rgba(10,37,64,0.7)),
    url('back.jfif');
    background-size: cover;
    color: white;
    padding: 120px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 40px;
}

/* Sections */
.section {
    padding: 60px 20px;
    max-width: 1000px;
    margin: auto;
}

.section h2 {
    color: #0a2540;
    margin-bottom: 20px;
}

/* Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 10px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

/* Contact */
.contact {
    background: #f5f7fa;
}

/* Footer */
footer {
    background: #0a2540;
    color: white;
    text-align: center;
    padding: 20px;
}
/* 讓連結變白 */
footer a {
    color: white;
    text-decoration: none;
}

/* 滑過效果（可選） */
footer a:hover {
    color: #ccc;
}

/* 🔧 關於我們優化（重點） */
.about-text {
    white-space: pre-line;
}