/* ========================================
   Concerns Section - こんなお悩みありませんか？
   ======================================== */

.concerns-section {
    position: relative;
    padding: 100px 0 180px;
    background: linear-gradient(90deg, #00d4ff 0%, #1ce3ff 25%, #0099ff 60%, #0066ff 85%, #3366ff 100%);
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

/* 装飾用の円形要素（左上） */
.concerns-section::before {
    content: '';
    position: absolute;
    top: -150px;
    left: -150px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* 装飾用の円形要素（右上） */
.concerns-section::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.concerns-section__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.concerns-section__title {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    color: #ffffff;
    margin-bottom: 60px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.concerns-cards {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.concerns-card {
    background: #ffffff;
    border-radius: 15px;
    padding: 40px 30px;
    width: 320px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    text-align: center;
}

.concerns-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
}

.concerns-card__image {
    margin-bottom: 25px;
    overflow: hidden;
    border-radius: 10px;
}

.concerns-card__image img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.concerns-card:hover .concerns-card__image img {
    transform: scale(1.1);
}

.concerns-card__text {
    font-size: 18px;
    font-weight: 600;
    color: #333333;
    line-height: 1.6;
    margin: 0;
}

/* 波形シェイプディバイダー */
.concerns-section__wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.concerns-section__wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 121px;
}

/* Concerns Description */
.concerns-description {
    background: #ffffff;
    padding: 80px 0;
}

.concerns-description__inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.concerns-description__text {
    font-size: 18px;
    line-height: 2;
    color: #333333;
    text-align: center;
    margin: 0;
}

/* ========================================
   レスポンシブ対応
   ======================================== */

@media (max-width: 991px) {
    .concerns-section {
        padding: 80px 0 150px;
    }
    
    .concerns-section__title {
        font-size: 40px;
        margin-bottom: 50px;
    }
    
    .concerns-cards {
        gap: 30px;
    }
    
    .concerns-card {
        width: 280px;
        padding: 35px 25px;
    }
    
    .concerns-card__text {
        font-size: 16px;
    }
}

@media (max-width: 767px) {
    .concerns-section {
        padding: 60px 0 120px;
    }
    
    .concerns-section__title {
        font-size: 32px;
        margin-bottom: 40px;
    }
    
    .concerns-cards {
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }
    
    .concerns-card {
        width: 100%;
        max-width: 350px;
        padding: 30px 20px;
    }
    
    .concerns-card__text {
        font-size: 15px;
    }
    
    .concerns-description {
        padding: 60px 0;
    }
    
    .concerns-description__text {
        font-size: 16px;
        line-height: 1.8;
    }
}