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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
    background: linear-gradient(180deg, #07111f, #10243a);
    color: #ffffff;
    line-height: 1.7;
}

.hero {
    min-height: 100vh;
    text-align: center;
    padding: 130px 20px;
    background:
        radial-gradient(circle at top, rgba(94, 212, 200, 0.35), transparent 35%),
        radial-gradient(circle at 20% 20%, rgba(174, 232, 255, 0.18), transparent 30%),
        linear-gradient(180deg, #081426, #0d1f35);
}

.hero h1 {
    font-size: 56px;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.hero h2 {
    font-size: 36px;
    color: #aee8ff;
    margin-bottom: 15px;
    text-shadow: 0 0 18px rgba(174, 232, 255, 0.45);
}

.hero p {
    font-size: 20px;
    color: #d8f5ff;
}

.countdown {
    margin-top: 35px;
    padding: 22px 32px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(174, 232, 255, 0.35);
    display: inline-block;
    backdrop-filter: blur(8px);
    box-shadow: 0 0 30px rgba(94, 212, 200, 0.12);
}

.countdown p {
    font-size: 18px;
    color: #d8f5ff;
    margin-bottom: 8px;
}

#timer {
    font-size: 30px;
    font-weight: bold;
    color: #aee8ff;
    letter-spacing: 1px;
}

.buttons {
    margin-top: 35px;
}

.btn {
    display: inline-block;
    margin: 8px;
    padding: 12px 24px;
    border-radius: 999px;
    text-decoration: none;
    color: #07111f;
    background: #aee8ff;
    font-weight: bold;
    transition: 0.25s;
}

.btn:hover {
    transform: translateY(-3px);
    background: #ffffff;
    box-shadow: 0 8px 24px rgba(174, 232, 255, 0.35);
}

.section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 70px 20px;
}

.section h2 {
    font-size: 32px;
    margin-bottom: 25px;
    color: #aee8ff;
}

.card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(174, 232, 255, 0.25);
    border-radius: 18px;
    padding: 25px;
    margin-bottom: 18px;
    backdrop-filter: blur(8px);
}

.card ul {
    padding-left: 22px;
}

.card p,
.card li {
    font-size: 17px;
}

footer {
    text-align: center;
    padding: 30px;
    color: #9fcfe3;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .hero {
        padding: 110px 18px;
    }

    .hero h1 {
        font-size: 38px;
    }

    .hero h2 {
        font-size: 28px;
    }

    .hero p {
        font-size: 17px;
    }

    #timer {
        font-size: 24px;
    }

    .section h2 {
        font-size: 26px;
    }
}