* {
    font-family: verdana, arial;
}

body {
    margin: 8px;
}

h1 {
    margin-top: 20px;
}

h2 {
    margin-top: 0;
    margin-bottom: 10px;
}

p {
    line-height: 1.5;
}

.intro {
    max-width: 600px;
    margin-bottom: 30px;
}

.section {
    max-width: 600px;
    border: 1px solid #ccc;
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 25px;
    background: #fafafa;
}

.step {
    margin-top: 20px;
}

.step-title {
    font-weight: bold;
    margin-bottom: 8px;
}

.step-row {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.step-text {
    flex: 1 1 260px;
    min-width: 240px;
}

.qr {
    width: 160px;
    height: 160px;
    flex: 0 0 160px;
    border: 1px solid #ddd;
    padding: 6px;
    background: #fff;
    box-sizing: border-box;
}

a {
    font-weight: bold;
    word-break: break-word;
}

.notice {
    margin-top: 20px;
    padding: 12px 15px;
    background: #fff3cd;
    border: 1px solid #ffe69c;
    border-radius: 4px;
    font-size: 0.95em;
}

.back-link {
    margin-top: 30px;
    max-width: 600px;
}

@media (max-width: 500px) {
    .section {
        padding: 15px;
    }
    .step-row {
        gap: 12px;
    }
    .qr {
        width: 140px;
        height: 140px;
        flex: 0 0 140px;
    }
}