/* 基础自适应调整 */
@media (max-width: 900px) {
    .hero-title {
        letter-spacing: .04em;
    }
}

@media (max-width: 680px) {
    body { font-size: 15px; }
    .image-button {
        height: clamp(140px, 34vh, 230px);
        padding: 1rem 1rem 1.1rem;
    }
    .image-button .btn-label {
        font-size: clamp(1.05rem,4.5vw,1.35rem);
    }
    .button-group {
        gap: clamp(.65rem,2.8vw,1rem);
        padding: clamp(.7rem,3.5vw,1.25rem);
    }
}

@media (min-width: 1400px) {
    .image-button {
        height: clamp(240px, 30vh, 360px);
    }
}