html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    color: #333;
    background: #fff;
    font-family: "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
}

.landing-header {
    min-height: 48px;
    padding: 10px 32px;
    border-top: 4px solid #3eb249;
    border-bottom: 1px solid #aaa;
    background: #fff;
}

.landing-header h2 {
    margin: 0;
    color: #666;
    font-size: clamp(1rem, 2.2vw, 1.5rem);
    font-weight: 300;
}

.landing-content {
    max-width: 960px;
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
}

.title-block {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-block h1 {
    margin: 0;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 400;
}

.site-logo {
    width: auto;
    max-width: 120px;
    max-height: 80px;
}

.landing-content > p,
.landing-content > ul {
    font-size: 1.1rem;
    line-height: 1.65;
}

.accordion {
    max-width: 760px;
}

.accordion-button {
    color: #333;
    font-size: 1.1rem;
    font-weight: 600;
}

.help-top {
    display: block;
    margin-top: .75rem;
}

.help-table {
    min-width: 570px;
}

.help-table td {
    width: 50%;
    vertical-align: top;
}

.copyright {
    margin-top: 1rem;
    text-align: center;
    font-size: .75rem;
}

@media (max-width: 575.98px) {
    .landing-header {
        padding-inline: 16px;
    }

    .landing-content {
        padding-top: 1.5rem;
    }

    .site-logo {
        max-width: 72px;
    }
}