body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.8;
    letter-spacing: 0.05em;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Large Margins */
section {
    padding-bottom: 80px;
}

@media (min-width: 1024px) {
    section {
        padding-bottom: 120px;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Swiper FV */
.fv-swiper {
    width: 100%;
    height: auto;
}

.fv-swiper img {
    width: 100%;
    height: auto;
    vertical-align: bottom;
}

/* Section Heading Style */
.section-header {
    text-align: center;
    margin-bottom: 80px;
    padding: 0 20px;
}

.section-header .en-title {
    display: block;
    font-family: 'Alex Brush', cursive;
    font-size: 3.5rem;
    color: #FF9800;
    /* accentOrange */
    margin-bottom: -25px;
    position: relative;
    z-index: 1;
}

.section-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #333;
    position: relative;
    z-index: 2;
    letter-spacing: 0.1em;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: #00BCD4;
    /* accentTurquoise */
    margin: 20px auto 0;
}

/* Parallax */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Mobile fallback for parallax */
@media (max-width: 1023px) {
    .parallax-bg {
        background-attachment: scroll;
    }
}

/* Hamburger Menu Overlay */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    z-index: 1000;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Floating Button */
#top-button {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 50;
    opacity: 0;
    transition: opacity 0.3s;
}

#top-button.visible {
    opacity: 1;
}

/* CTA SP */
.sp-cta-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    display: none;
}

@media (max-width: 1023px) {
    .sp-cta-bar {
        display: flex;
    }
}

/* Modal / Lightbox */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
}

.modal img {
    max-width: 90%;
    max-height: 90%;
}

/* Custom UI */
.btn-hover {
    transition: all 0.3s ease;
}

.btn-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Responsive width wrapper */
.container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Creative Image Frames */
.creative-frame {
    position: relative;
    padding: 20px;
    display: inline-block;
    width: 100%;
}

.creative-frame::before {
    content: '';
    position: absolute;
    top: 5%;
    left: 5%;
    width: 100%;
    height: 100%;
    border-radius: 30% 70% 70% 30% / 50% 60% 40% 50%;
    background: #e0f7fa;
    z-index: -1;
    opacity: 0.6;
}

.frame-accent {
    position: absolute;
    bottom: -10px;
    right: -10px;
    width: 60px;
    height: 60px;
    border: 2px solid #F39800;
    border-radius: 50%;
    z-index: 5;
}

/* Variant 1: Original Blob (About) */
.blob-shape {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    overflow: hidden;
    transition: all 0.5s ease;
}

.blob-shape:hover {
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
}

/* Variant 2: Squarish Blob (Service Rows) */
.blob-variant-2 {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    overflow: hidden;
    transition: all 0.5s ease;
}

.blob-variant-2:hover {
    border-radius: 50%;
}

/* Variant 3: Sharp Leaf (Message) */
.leaf-shape {
    border-radius: 0 70% 0 70%;
    overflow: hidden;
    transition: all 0.5s ease;
}

.leaf-shape:hover {
    border-radius: 70% 0 70% 0;
}

/* Interactive Tilted Frame (General) */
.tilted-frame {
    transform: rotate(-2deg);
    transition: transform 0.3s ease;
}

.tilted-frame:hover {
    transform: rotate(0deg);
}