body {
        margin: 0;
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        background: #fafafa;
        color: #222;
        line-height: 1.6;
    }


    header {
        background: #222;
        color: #fff;
        padding: 16px 24px;
    }

    header a {
        color: #fff;
        text-decoration: none;
        font-weight: 600;
    }

    header span {
        color: #777;
        margin: 0 6px;
    }


    main {
        max-width: 960px;
        margin: 0 auto;
        padding: 0 16px;
    }

    section {
        background: #fff;
        padding: 28px;
        margin-bottom: 24px;
        border-radius: 14px;
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
    }

    h1 {
        margin: 0;
        font-size: 24px;
        font-weight: 600;
    }

    h2 {
        margin-top: 0;
    }

    p {
        line-height: 1.7;
        color: #333;
    }

    .clock {
        font-size: 48px;
        font-weight: 700;
        text-align: center;
        padding: 24px 0;
        letter-spacing: -1px;
    }

    .link-box a {
        display: inline-block;
        margin-right: 12px;
        margin-top: 12px;
        padding: 10px 18px;
        background: #007bff;
        color: #fff;
        text-decoration: none;
        border-radius: 8px;
    }

    footer {
        text-align: center;
        font-size: 13px;
        color: #666;
        margin: 40px 0 20px;
    }

    footer a {
        color: #666;
        text-decoration: none;
    }

    #target-day {
        margin-top: 8px;
        font-size: 0.95rem;
        color: #aaa;
    }

    .adfit-slot {
        display: block;
        margin: 2rem auto;
        text-align: center;
    }

    .ad-section-mobile {
        display: none;
        text-align: center;
        margin: 30px 0;
    }

    .ad-label {
        font-size: 12px;
        color: #888;
        margin-bottom: 6px;
    }

    /* 모바일에서만 노출 */
    @media (max-width: 768px) {
        .ad-section-mobile {
            display: block;
        }
    }