/*
 * Westree · Feature Grid (功能亮点)
 */

.ar-feature-grid {
    padding: var(--space-24) 0;
}
.ar-feature-grid__grid {
    display: grid;
    gap: var(--space-6);
    margin-top: var(--space-12);
}
.ar-feature-grid__grid--cols-2 { grid-template-columns: repeat(2, 1fr); }
.ar-feature-grid__grid--cols-3 { grid-template-columns: repeat(3, 1fr); }
.ar-feature-grid__grid--cols-4 { grid-template-columns: repeat(4, 1fr); }

.ar-feature-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: transform var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out);
}
.ar-feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-card-hover);
}
.ar-feature-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--color-primary-soft);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}
.ar-feature-card__icon img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}
.ar-feature-card__title {
    font-size: var(--text-h4);
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-2);
}
.ar-feature-card__desc {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

@media (max-width: 1024px) {
    .ar-feature-grid__grid--cols-3,
    .ar-feature-grid__grid--cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .ar-feature-grid__grid--cols-2,
    .ar-feature-grid__grid--cols-3,
    .ar-feature-grid__grid--cols-4 { grid-template-columns: 1fr; }
}