body {
    overflow-y: auto;
}
.top-logo{
  width: 180px;
  max-width: 70%;
  height: auto;
}
.top-container {
    min-height: 100dvh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px 16px 14px;
}
.top-hero {
    width: min(100%, 880px);
    margin: 0 auto;
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    align-items: center;
    justify-items: center;
}
.hero-copy {
    width: min(100%, 560px);
    text-align: center;
    padding: 34px 26px 30px;
}
.hero-title {
    margin: 10px 0 14px;
    font-size: clamp(2.2rem, 8vw, 4.6rem);
    line-height: 0.98;
    letter-spacing: -0.05em;
    font-family: 'Montserrat', 'Kosugi Maru', sans-serif;
    color: var(--wine-900);
}
.hero-title span { color: var(--rose-500); }
.hero-description {
    margin: 0 auto 22px;
    max-width: 28ch;
    font-size: 0.98rem;
    line-height: 1.9;
    color: var(--muted);
}
.hero-actions { display: flex; justify-content: center; }
.start-button button {
    min-width: 228px;
    min-height: 56px;
    padding: 0 24px;
    font-size: 1rem;
    font-weight: 800;
    border-radius: 999px;
    border: 0;
    color: #fff;
    background: linear-gradient(135deg, var(--rose-500), var(--wine-800));
    box-shadow: 0 14px 28px rgba(168, 45, 90, 0.26);
}
.simple-note {
    margin: 16px 0 0;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--wine-800);
}
.hero-preview {
    width: min(100%, 250px);
    padding: 16px;
    display: grid;
    gap: 12px;
    justify-items: start;
}
.preview-label {
    display: inline-flex;
    align-items: center;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,0.86);
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--wine-800);
    box-shadow: 0 8px 20px rgba(128, 21, 63, 0.08);
}
.preview-stage {
    width: 100%;
    height: 160px;
    border-radius: 26px;
    background: linear-gradient(180deg, rgba(255,255,255,0.86), rgba(255,244,247,0.9));
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.7);
    position: relative;
    overflow: hidden;
}
.preview-stage::before {
    content: 'まさにちゅうどいい';
    position: absolute;
    left: 16px;
    bottom: 18px;
    font-size: 0.72rem;
    font-weight: 800;
    color: rgba(110, 18, 51, 0.55);
    z-index: 2;
}
.preview-stage::after {
    content: '# かんたん診断';
    position: absolute;
    right: 12px;
    top: 12px;
    padding: 6px 9px;
    border-radius: 999px;
    background: rgba(255,255,255,0.84);
    font-size: 0.68rem;
    font-weight: 800;
    color: var(--wine-800);
    z-index: 2;
}
.preview-liquid {
    position: absolute;
    inset: auto 12px 12px;
    height: 92px;
    border-radius: 24px 24px 18px 18px;
    background: linear-gradient(180deg, rgba(255, 129, 173, 0.74), rgba(139, 30, 63, 0.9));
    box-shadow: inset 0 12px 24px rgba(255,255,255,0.15);
}
.preview-liquid::before {
    content: '';
    position: absolute;
    left: -8%;
    right: -8%;
    top: -16px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255,255,255,0.16);
    animation: floatingWine 5s ease-in-out infinite;
}
.footer {
    width: min(100%, 880px);
    margin: 0 auto;
    padding-top: 8px;
    color: var(--muted);
    font-size: 0.72rem;
}
@keyframes floatingWine { 0%,100%{transform:translateX(0)} 50%{transform:translateX(6%)} }
@media (max-width: 860px) {
    .top-container { padding-top: 18px; }
    .top-hero { gap: 14px; }
    .hero-copy { width: min(100%, 100%); padding: 28px 20px 26px; }
    .hero-description { max-width: 24ch; font-size: 0.92rem; }
    .hero-preview { width: min(100%, 190px); padding: 14px; }
    .preview-stage { height: 120px; border-radius: 20px; }
    .preview-liquid { height: 64px; }
}