```css
/* ===== 基本設定 ===== */

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

body {
    font-family:
    "Noto Sans TC",
    "Microsoft JhengHei",
    sans-serif;

    color: #333;
    line-height: 1.8;
    background: #f7f9fb;
}

img {
    max-width: 100%;
    display: block;
}


/* ===== Header ===== */

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background: white;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}


/* ===== Logo ===== */

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    width: 100px;
    height: auto;
}

.logo-text h1 {
    color: #0b3a5b;
    font-size: 28px;
    margin: 0;
}

.logo-text p {
    color: #777;
    font-size: 14px;
    margin: 0;
}


/* ===== 導覽列 ===== */

nav a {
    text-decoration: none;
    color: #0b3a5b;
    margin-left: 30px;
    font-weight: bold;
    transition: 0.3s;
}

nav a:hover {
    color: #d6a85f;
}


/* ===== 首頁大圖 ===== */

.banner {
    height: 520px;

    background:
    linear-gradient(
        rgba(11,58,91,0.55),
        rgba(11,58,91,0.55)
    ),
    url("images/banner.jpg");

    background-size: cover;
    background-position: center;

    display: flex;
    align-items: center;
}

.banner-text {
    color: white;
    margin-left: 10%;
    max-width: 550px;
}

.banner-text h2 {
    font-size: 48px;
    line-height: 1.3;
}

.banner-text p {
    margin: 25px 0;
    font-size: 18px;
}


/* ===== 按鈕 ===== */

.button {
    display: inline-block;
    background: #d6a85f;
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    transition: 0.3s;
}

.button:hover {
    background: #b8873f;
}


/* ===== 區塊 ===== */

section {
    padding: 70px 8%;
}

section h2 {
    text-align: center;
    color: #0b3a5b;
    font-size: 32px;
    margin-bottom: 40px;
}


/* ===== 行程卡片 ===== */

.cards {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.card {
    background: white;
    width: 32%;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-8px);
}

.card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card h3 {
    color: #0b3a5b;
    padding: 20px 20px 10px;
}

.card p {
    padding: 0 20px 20px;
}

.card a {
    display: block;
    margin: 0 20px 25px;
    color: #1d5d8f;
    text-decoration: none;
    font-weight: bold;
}


/* ===== 最新消息 ===== */

.news {
    background: white;
}

.news ul {
    max-width: 700px;
    margin: auto;
}

.news li {
    list-style: none;
    background: #f1f6fa;
    padding: 15px;
    margin: 12px 0;
    border-left: 5px solid #1d5d8f;
}


/* ===== 特色 ===== */

.features {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.features div {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    width: 30%;
}


/* ===== 聯絡區 ===== */

.contact-box {
    text-align: center;
    background: #0b3a5b;
    color: white;
}

.contact-box h2 {
    color: white;
}

.contact-box a {
    color: white;
}


/* ===== LINE 浮動按鈕 ===== */

.line-button {
    position: fixed;
    right: 25px;
    bottom: 25px;

    background: #06c755;
    color: white;

    width: 65px;
    height: 65px;

    border-radius: 50%;

    display: flex;
    justify-content: center;
    align-items: center;

    text-decoration: none;
    font-weight: bold;

    box-shadow: 0 5px 15px rgba(0,0,0,0.25);

    z-index: 999;

    transition: 0.3s;
}

.line-button:hover {
    transform: scale(1.1);
}


/* ===== Footer ===== */

footer {
    background: #06283d;
    color: white;
    text-align: center;
    padding: 25px;
}


/* ===== 手機版 ===== */

@media(max-width:768px) {

    header {
        flex-direction: column;
    }

    nav {
        margin-top: 20px;
    }

    nav a {
        margin: 0 10px;
    }

    .logo {
        flex-direction: column;
        text-align: center;
    }

    .banner {
        height: 420px;
    }

    .banner-text h2 {
        font-size: 36px;
    }

    .cards {
        flex-direction: column;
    }

    .card {
        width: 100%;
    }

    .features {
        flex-direction: column;
    }

    .features div {
        width: 100%;
    }
}
```