@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
    overflow-x: hidden;
    width: 100%;
    min-width: 320px;
}
.orange{
    color:#FFA500;
}
.skyblue{
    color: #3498DB;
}

/* ヒーローセクション */
.hero {
    min-height: clamp(520px, 75vh, 680px);
    padding: clamp(72px, 9vw, 140px) clamp(24px, min(5vw, 80px), 80px);
    background: #59bcf3;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
    color: #fff;
}

.hero::before,
.hero::after {
    display: none;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    animation: float-shape 22s infinite ease-in-out;
}

.shape:nth-child(1) {
    width: 80px;
    height: 80px;
    left: 10%;
    animation-delay: 0s;
}

.shape:nth-child(2) {
    width: 120px;
    height: 120px;
    right: 6%;
    animation-delay: 6s;
}

.shape:nth-child(3) {
    width: 60px;
    height: 60px;
    left: 58%;
    animation-delay: 10s;
}

@keyframes float-shape {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-100px) rotate(180deg);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    width: min(680px, 100%);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(28px, 5vw, 40px);
}

.hero-copy {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(18px, 3vw, 28px);
    text-align: center;
    color: #fff;
}

.hero-logo {
    width: min(320px, 100%);
    display: block;
    filter:
        drop-shadow(-6px 6px 1px rgba(6, 23, 39, 0.28))
        drop-shadow(-6px 6px 3px rgba(6, 23, 39, 0.2));
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 22px;
    border-radius: 999px;
    background: rgba(255, 128, 24, 0.906);
    font-size: 0.9rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    position: relative;
    color: white;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.85);
}

.syncless-promo {
    background: linear-gradient(135deg, #0b1838, #132e76);
    color: #f8fafc;
    padding: clamp(1.5rem, 4vw, 2.6rem) clamp(1.5rem, 6vw, 3rem);
    display: flex;
    justify-content: center;
}

.syncless-promo-inner {
    display: flex;
    align-items: center;
    gap: clamp(1.2rem, 4vw, 2.8rem);
    width: min(880px, 100%);
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.syncless-promo-copy {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.syncless-tagline {
    font-size: clamp(1.1rem, 2.4vw, 1.6rem);
    font-weight: 700;
    letter-spacing: 0.01em;
}

.syncless-price {
    font-size: clamp(0.95rem, 2vw, 1.2rem);
    font-weight: 500;
    color: #cbd5f5;
}

.syncless-promo-image {
    max-width: clamp(120px, 20vw, 180px);
    width: 100%;
    border-radius: 18px;
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.35);
    object-fit: cover;
}

.syncless-promo-inner:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 55px rgba(12, 18, 38, 0.4);
}

@media (max-width: 720px) {
    .syncless-promo-inner {
        flex-direction: column;
        text-align: center;
    }

    .syncless-promo-image {
        max-width: clamp(140px, 50vw, 220px);
    }
}

.hero-badge::after {
    content: '';
    position: absolute;
    left: 58%;
    bottom: -16px;
    width: 20px;
    height: 16px;
    background: rgba(255, 139, 24, 0.906);
    clip-path: polygon(40% 0%, 90% 0%, 50% 70%);
}

.hero-lead {
    font-size: clamp(1.12rem, 3vw, 1.48rem);
    line-height: 1.7;
    margin: 0;
    color: rgba(255, 255, 255, 0.92);
    max-width: 560px;
    text-shadow: -2px 2px 0 rgba(0, 34, 64, 0.32);
}

.hero-meta-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: clamp(12px, 2vw, 18px);
}

.hero-meta-chip {
    padding: 12px 18px;
    border-radius: 999px;
    background: rgba(15, 34, 54, 0.4);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: rgba(255, 255, 255, 0.9);
    will-change: transform;
    filter:
    drop-shadow(-6px 6px 1px rgba(6, 23, 39, 0.28)) 
    drop-shadow(-6px 6px 3px rgba(6, 23, 39, 0.2));
}
.hero-meta-chip-orange{
    padding: 12px 18px;
        border-radius: 999px;
        background:#FFA500;
        font-size: 1.2rem;
        font-weight: 800;
        letter-spacing: 0.03em;
        color: rgba(255, 255, 255, 0.9);
        will-change: transform;
        filter:
            drop-shadow(-6px 6px 1px rgba(6, 23, 39, 0.28)) drop-shadow(-6px 6px 3px rgba(6, 23, 39, 0.2));
}

.hero-photo {
    width: 100%;
    display: flex;
    justify-content: center;
}

.hero-photo-frame {
    width: min(100%, 540px);
    aspect-ratio: 4 / 5;
    border-radius: 0;
}

.hero-photo-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.sub-title {
    font-size: clamp(1.18rem, 3.2vw, 1.62rem);
    color: rgba(255, 255, 255, 0.97);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-shadow: -3px 3px 2px rgba(0, 34, 64, 0.32);
    margin: 0;
    line-height: 1.6;
    max-width: 640px;
}

[data-parallax-depth] {
    will-change: transform;
    transition: transform 0.2s ease-out;
}

.problems-section,
.solution-section,
.comparison-section,
.styles-section,
.pricing,
.cta {
    position: relative;
    z-index: 1;
}

/* 1. 問題提起セクション */
.problems-section {
    padding: 5vw 0 0;
    background: linear-gradient(120deg, rgba(255, 255, 255, 1) 0%, rgba(245, 248, 252, 1) 100%);
    border-bottom: 1px solid #e5eef7;
    position: relative;
}

/* セクション間矢印 */
.section-arrow {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: -30px 0;
    z-index: 1000;
}

.arrow-down {
    width: 50px;
    height: 50px;
    border-right: 14px solid #59bcf3;
    border-bottom: 14px solid #3b82f6;
    transform: rotate(45deg);
    margin-bottom: -13px;
}

.arrow-down-2 {
    width: 46px;
    height: 46px;
    border-width: 14px;
    margin-bottom: 0;
}

.problems-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(32px, 6vw, 48px);
    max-width: 1040px;
    margin: 0 auto;
    position: relative;
}

.problems-copy {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 32px;
    padding: clamp(32px, 5vw, 48px);
    box-shadow: 0 28px 60px rgba(15, 41, 77, 0.1);
    border: 1px solid rgba(52, 73, 94, 0.08);
    text-align: left;
}

.problems-copy::before,
.problems-copy::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(52, 73, 94, 0.08);
    box-shadow: 0 16px 32px rgba(15, 41, 77, 0.12);

}

.problems-copy::after {
    width: 70px;
    height: 60px;
    left: 50%;
    bottom: -46px;
}

.problems-copy::before {
    width: 40px;
    height: 34px;
    left: 53%;
    bottom: -80px;
}

.problems-heading {
    margin-bottom: clamp(20px, 4vw, 28px);
}

.problems-heading h2 {
    font-size: clamp(2rem, 3.6vw, 2.8rem);
    color: #1f3a56;
    margin: 0;
    line-height: 1.3;
}

.problems-heading p {
    margin: 16px 0 0;
    font-size: 1.05rem;
    color: #53657d;
    line-height: 1.7;
}

.problem-list {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(16px, 3vw, 24px);
    margin: 0;
    justify-content: center;
}

.problem-list-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 18px 22px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(245, 249, 255, 0.95) 100%);
    box-shadow: inset 0 0 0 1px rgba(52, 152, 219, 0.08);
    flex: 1 1 clamp(240px, 30%, 320px);
    min-width: 240px;
}

.problem-bullet {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    display: grid;
    place-items: center;
    font-size: 1.15rem;
    flex-shrink: 0;
    color: #fff;
    box-shadow: 0 10px 20px rgba(255, 138, 101, 0.18);
}

.problem-content h3 {
    margin: 0 0 6px;
    font-size: 1.2rem;
    color: #2c3e50;
}

.problem-content p {
    margin: 0;
    color: #5b6b81;
    line-height: 1.7;
    font-size: 0.98rem;
}

.problem-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: clamp(10px, 3vw, 40px);
}

.problem-visual::before {
    content: '';
    position: absolute;
    inset: clamp(8%, 8vw, 14%);
    background: radial-gradient(circle at 70% 30%, rgba(47, 47, 47, 0.16) 0%, transparent 70%);
    filter: blur(8px);
    z-index: 0;
}

.problem-visual img {
    width: clamp(150px, 20vw, 200px);
    max-width: 100%;
    height: auto;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 28px 48px rgba(15, 41, 77, 0.16));
}

/* 2. ソリューションセクション */
.solution-section {
    padding: clamp(60px, 8vw, 80px) 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
}



.solution-header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 0;
    display: flex;
    flex-direction: column;
    gap: clamp(18px, 3vw, 26px);
}

.solution-header .section-title {
    margin-bottom: 0;
}

.solution-header p {
    font-size: 1.05rem;
    color: #4b5563;
    line-height: 1.8;
    margin: 0;
}

.solution-content {
    display: flex;
    flex-direction: column;
    gap: clamp(48px, 6vw, 64px);
    max-width: 1400px;
    margin: 0 auto;
}

.solution-body {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(40px, 6vw, 80px);
    align-items: start;
}

.solution-benefits {
    display: flex;
    flex-direction: column;
    gap: clamp(20px, 3vw, 28px);
    margin-top: 24px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 0;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    padding: 25px;
}

.benefit-icon-small {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    background: rgba(52, 152, 219, 0.12);
    color: #3498DB;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon-small svg,
.benefit-icon-small img {
    width: 26px;
    height: 26px;
    fill: currentColor;
}

.benefit-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color:#2c3e50;
    margin-bottom: 8px;
    display: inline-block;
    padding: 2px 4px;
    box-decoration-break: clone;
}

.benefit-content p {
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

.solution-demo {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.demo-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 24px;
    text-align: center;
}

/* 3. 比較セクション */
.comparison-section {
    padding: clamp(60px, 8vw, 80px) 0;
    background: #fff;
}
.comparison-section p{
    text-align: center;
    color:#374151;
    margin-bottom: 30px;
}

/* 4. スタイル・バリエーションセクション */
.styles-section {
    padding: clamp(60px, 8vw, 80px) 0;
    background: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
}

.styles-content {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.product-gallery {
    display: grid;
    gap: clamp(24px, 4vw, 40px);
    align-items: stretch;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .product-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-gallery > .product-card:first-child {
        grid-column: 1 / -1;
    }
}

.product-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 20px;
    padding: clamp(24px, 5vw, 32px);
    box-shadow: 0 18px 34px rgba(15, 35, 53, 0.12);
    border: 1px solid rgba(44, 62, 80, 0.06);
    position: relative;
    overflow: visible;
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 12px 18px auto 18px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(93, 173, 226, 0.4), rgba(52, 152, 219, 0.7));
}

.product-card__title {
    font-size: clamp(1.2rem, 2.4vw, 1.5rem);
    font-weight: 800;
    color: #1f3a56;
    margin: 12px 0 8px;
    line-height: 1.4;
}

.product-card__subtitle {
    margin: 0;
    color: #3b6a99;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.product-card__images {
    display: grid;
    gap: 16px;
    margin: clamp(20px, 4vw, 28px) 0;
}

.product-card__images figure {
    margin: 0;
    padding: 0;
    text-align: center;
}

.styles-cta {
    margin-top: clamp(32px, 6vw, 48px);
    display: flex;
    justify-content: center;
}

.styles-cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: #fff;
    text-decoration: none;
    background: linear-gradient(135deg, #fb923c 0%, #f97316 50%, #ea580c 100%);
    border-radius: 999px;
    box-shadow: 0 16px 34px rgba(249, 115, 22, 0.28);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.styles-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(249, 115, 22, 0.34);
}

.product-card__images img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100px;
    box-shadow: 0 12px 24px rgba(15, 35, 53, 0.12);
    margin: 0 auto;
    transition: transform 0.6s ease, box-shadow 0.6s ease;
    transform-origin: center;
    will-change: transform;
}

.product-card__images figcaption {
    margin-top: 8px;
    font-size: 0.85rem;
    color: #60718a;
    letter-spacing: 0.02em;
}

.product-card__description {
    color: #4c5c72;
    line-height: 1.7;
    margin: 0;
    font-size: 0.98rem;
}

@media (min-width: 768px) {
    .product-card__images {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        justify-items: center;
    }
}

.product-card:first-child {
    padding: clamp(28px, 6vw, 40px);
    perspective: 1600px;
    transform-style: preserve-3d;
}

.product-card:first-child .product-card__images {
    display: grid;
    gap: clamp(20px, 3vw, 32px);
}

.product-card:first-child .product-card__images figure:first-child {
    order: 1;
}

.product-card:first-child .product-card__images figure:first-child img {
    max-width: clamp(260px, 42vw, 330px);
    transform: perspective(1000px) rotateY(-30deg) rotateX(14deg) rotateZ(-2deg)translateY(-18px);
    box-shadow: 0 28px 48px rgba(12, 30, 49, 0.26);
}

.product-card:first-child .product-card__images figure:last-child {
    order: 2;
}

.product-card:first-child .product-card__images figure:last-child img {
    max-width: clamp(240px, 40vw, 300px);
    transform: perspective(1200px) rotateY(29deg) rotateX(12deg) rotateZ(1deg);
    box-shadow: 0 22px 40px rgba(12, 30, 49, 0.22);
}

@media (min-width: 768px) {
    .product-card:first-child .product-card__images {
        grid-template-columns: repeat(2, minmax(200px, 1fr));
        align-items: center;
    }

    .product-card:first-child .product-card__images figure:first-child {
        justify-self: end;
    }

    .product-card:first-child .product-card__images figure:last-child {
        justify-self: start;
    }
}

@media (max-width: 767px) {
    .product-card:first-child .product-card__images figure:first-child img {
        transform: perspective(1000px) rotateY(-26deg) rotateX(12deg) rotateZ(-2deg);
    }

    .product-card:first-child .product-card__images figure:last-child img {
        transform: perspective(1000px) rotateY(22deg) rotateX(10deg) rotateZ(2deg);
    }
}

.product-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    text-align: center;
}

/* 5. 料金セクション */
.pricing {
    padding: clamp(60px, 8vw, 80px) 0;
    background: #fff;
}

.pricing-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 6vw, 60px);
    max-width: 1200px;
    margin: 0 auto;
}

.price-card {
    background: linear-gradient(135deg, #5DADE2 0%, #3498DB 100%);
    padding: clamp(32px, 4vw, 40px);
    border-radius: 16px;
    color: white;
    text-align: center;
}

.price-header h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.price-main {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 20px;
}

.price-unit {
    font-size: 1.2rem;
    opacity: 0.9;
}

.price-features {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
}

.price-features li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.price-features li:last-child {
    border-bottom: none;
}

.campaign-notice {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #333;
    padding: 12px 16px;
    border-radius: 8px;
    margin-top: 16px;
}

.pricing-note {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pricing-note h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
}

.pricing-examples {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.example-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498DB;
}

.example-label {
    font-weight: 600;
    color: #2c3e50;
}

.example-price {
    font-weight: 700;
    color: #3498DB;
}

/* 6. 導入の流れセクション */
.flow-section {
    padding: clamp(60px, 8vw, 80px) 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.flow-steps {
    display: flex;
    flex-direction: column;
    gap: clamp(32px, 4vw, 48px);
    max-width: 800px;
    margin: clamp(40px, 6vw, 60px) auto 0;
}

.flow-step {
    display: flex;
    align-items: center;
    gap: clamp(20px, 3vw, 32px);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3498DB, #2980B9);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.step-content {
    flex: 1;
    background: white;
    padding: clamp(20px, 3vw, 28px);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    gap: clamp(12px, 2vw, 18px);
}

.step-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 12px;
}

.step-content p {
    color: #666;
    line-height: 1.7;
    margin: 0;
}

.step-icon {
    width: clamp(54px, 9vw, 72px);
    height: clamp(54px, 9vw, 72px);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    margin-bottom: clamp(8px, 1.5vw, 16px);
}

.step-icon::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: inherit;
    background: rgba(136, 219, 255, 0.342);
    z-index: -1;
}

.step-icon img {
    width: clamp(26px, 5vw, 36px);
    height: clamp(26px, 5vw, 36px);
    object-fit: contain;
}

.right-content {
    display: flex;
    flex-direction: column;
    gap: clamp(24px, 3vw, 32px);
}
/* Animation block pop style */


.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 40px);
    width: 100%;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 60px;
    color: #2C3E50;
    position: relative;
    letter-spacing: 0.05em;
    padding: 32px 0 28px 0;
    border-radius: 28px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #5DADE2, #3498DB);
    border-radius: 2px;
    z-index: 2;
}

/* --- Problem Flow Manga Comparison --- */
.problem-flow {
    display: flex;
    flex-direction: column;
    gap: clamp(32px, 6vw, 48px);
    align-items: center;
    margin-bottom: clamp(60px, 8vw, 100px);
}

.manga-grid {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: clamp(20px, 3vw, 32px);
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 clamp(16px, 2vw, 24px) clamp(12px, 2vw, 18px);
    position: relative;
    flex-wrap: nowrap;
}

.manga-grid::before {
    content: '';
    position: absolute;
    bottom: -36px;
    left: 50%;
    transform: translateX(-50%);
    width: clamp(280px, 60vw, 540px);
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(52, 152, 219, 0.5), transparent);
}

.manga-item {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 16px;
    padding: clamp(16px, 2.5vw, 24px);
    display: flex;
    flex-direction: column;
    gap: clamp(12px, 2vw, 18px);
    position: relative;
    overflow: hidden;
    width: clamp(260px, 34vw, 360px);
    flex: 1 1 clamp(280px, 34vw, 360px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.manga-item--highlight {
    background: linear-gradient(135deg, #4CC7FF 0%, #3BA0F6 100%);
    border: none;
    box-shadow: 0 18px 36px rgba(59, 160, 246, 0.28);
    color: #fff;
}

.manga-item--highlight .manga-title {
    color: inherit;
}

.manga-title--inverse {
    color: #fff;
}

.manga-item--muted {
    background: #f1f5f9;
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 8px 18px rgba(15, 35, 53, 0.08);
}
.manga-item::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.18) 0%, transparent 55%);
    mix-blend-mode: screen;
}


.manga-title {
    position: relative;
    z-index: 2;
    font-size: clamp(1.2rem, 2.6vw, 1.6rem);
    font-weight: 800;
    color: #1f3a56;
    text-align: center;
    margin: 0 0 clamp(14px, 2vw, 20px);
    letter-spacing: 0.02em;
}

.manga-preview {
    position: relative;
    z-index: 2;
    width: 100%;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease;
    isolation: isolate;
}

.manga-preview::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(148, 163, 184, 0.35);
    z-index: 1;
    opacity: 0.45;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.manga-preview:hover {
    transform: scale(1.02);
}

.manga-preview:hover::before {
    opacity: 0.25;
}

.manga-preview::after {
    content: none;
}

.manga-preview img {
    width: 200px;
    height: auto;
    display: block;
    object-fit: contain;
    transition: transform 0.35s ease;
    max-height: none;
    pointer-events: none;
    position: relative;
    z-index: 0;
}


.manga-read-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.92rem;
    font-weight: 700;
    color: #0ea5e9;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(14, 165, 233, 0.32);
    border-radius: 999px;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    z-index: 2;
    box-shadow: 0 10px 24px rgba(14, 165, 233, 0.18);
}

.manga-read-button:hover {
    background: rgba(255, 255, 255, 1);
    transform: translate(-50%, -50%) scale(1.04);
    box-shadow: 0 14px 28px rgba(14, 165, 233, 0.22);
}

.manga-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.manga-caption {
    position: relative;
    z-index: 2;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #374151;
    font-weight: 500;
    text-align: center;
    margin-bottom: 12px;
}

.manga-points {
    position: relative;
    z-index: 2;
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 8px;
}

.manga-points li {
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(248, 250, 252, 0.6);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    font-size: 0.8rem;
    color: #4b5563;
    display: flex;
    gap: 6px;
    align-items: flex-start;
    line-height: 1.4;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.manga-points.qr li::before {
    content: '⚠';
    font-size: 0.75rem;
    line-height: 1.5;
    color: #dc2626;
    font-weight: bold;
}

.manga-points.touch li::before {
    content: '✓';
    font-size: 0.75rem;
    line-height: 1.5;
    color: #059669;
    font-weight: bold;
}

/* CTA */
.cta {
    background: linear-gradient(135deg, #F8F9FA 0%, #E9ECEF 100%);
    padding: 100px 20px;
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-description {
    font-size: 1.3rem;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    padding: 25px 60px;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #5DADE2 0%, #3498DB 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 50px rgba(52, 152, 219, 0.4);
}

/* レスポンシブ */
/* モーダルスタイル */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 90vw;
    max-height: 90vh;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header {
    padding: 16px 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6c757d;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: #495057;
}

.modal-body {
    padding: 0;
    text-align: center;
    flex: 1 1 auto;
    overflow: hidden;
}

.modal-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    max-height: calc(90vh - 72px);
}

/* ========================================
   レスポンシブデザイン - メディアクエリ
======================================== */

/* デスクトップ */
@media (min-width: 1024px) {
    .hero {
        background: url('./src/hero_pc.jpg') center/cover no-repeat;
        justify-content: center;
        padding: clamp(96px, 10vw, 160px) clamp(8vw, 12vw, 180px);
    }

    .manga-preview::before {
        opacity: 0;
        background: transparent;
    }

    .manga-preview:hover::before {
        opacity: 0;
    }

    .manga-read-button {
        display: none !important;
    }

    .hero-content {
        width: 100%;
        max-width: 1200px;
        padding: 0 clamp(24px, 4vw, 48px);
        margin: 0 auto;
        align-items: flex-start;
        gap: clamp(28px, 4vw, 48px);
    }

    .hero-copy {
        width: min(620px, 60%);
        align-items: flex-start;
        text-align: left;
    }

    .hero-meta-list {
        justify-content: flex-start;
    }

    .hero-photo {
        display: none;
    }

    .animation-demo {
        transform: scale(1);
    }

}

/* タブレット */


/* モバイル */
@media (max-width: 1023px) {
    .section-container {
        padding: 0 20px;
    }
    .solution-content {
        gap: clamp(32px, 6vw, 48px);
    }

    .solution-body {
        grid-template-columns: 1fr;
    }

    .solution-demo {
        align-items: center;
    }




    .manga-grid {
        max-width: 100%;
        justify-content: center;
        padding: 0 12px 18px;
        gap: 16px;
        flex-wrap: nowrap;
    }
    .floating-shapes {
        display: none;
    }

    .hero {
        padding: 110px 24px 0px;
    }

    .hero-content {
        width: 100%;
        gap: 24px;
    }

    .hero-logo {
        width: min(240px, 70%);
    }

    .hero-photo-frame {
        width: 100%;
        aspect-ratio: auto;
    }

    .hero-photo-frame img {
        width: 100%;
        height: auto;
        object-fit: contain;
    }

    .hero-badge {
        font-size: 0.78rem;
        letter-spacing: 0.14em;
    }

    .hero-lead {
        font-size: 1.05rem;
        max-width: 520px;
    }

    .hero-meta-list {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-meta-chip {
        width: 100%;
        text-align: center;
    }

    .sub-title {
        font-size: 1.25rem;
    }


    .problem-flow {
        gap: 28px;
        margin-bottom: 56px;
    }

    .problems-heading h2 {
        font-size: 2rem;
    }

    .problem-bullet {
        width: 40px;
        height: 40px;
        font-size: 1.05rem;
    }

    .problem-list {
        gap: 18px;
    }

    .manga-item {
        padding: clamp(14px, 3vw, 20px);
        max-width: clamp(140px, 30vw, 220px);
        width: clamp(140px, 30vw, 220px);
        flex: 0 0 clamp(140px, 30vw, 220px);
        box-shadow: none;
        border: 1px solid rgba(148, 163, 184, 0.35);
        align-items: center;
    }

    .manga-item--highlight {
        border: none;
        box-shadow: 0 14px 28px rgba(59, 160, 246, 0.28);
    }

    .manga-item--muted {
        background: #edf2f7;
        border: 1px solid rgba(148, 163, 184, 0.3);
        box-shadow: 0 10px 20px rgba(15, 35, 53, 0.08);
    }

    .manga-preview {
        border-radius: 12px;
        height: clamp(180px, 46vw, 260px);
        width: 100%;
        align-items: center;
    }

    .manga-read-button {
        display: inline-flex;
        padding: 8px 16px;
        font-size: 0.84rem;
    }

    .manga-preview img {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .manga-caption,
    .manga-points,
    .manga-points li {
        display: none;
    }

    .product-types {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .price-main {
        font-size: 3rem;
    }
}

/* 小型モバイル */
@media (max-width: 480px) {
    .section-container {
        padding: 0 16px;
    }

    .animation-demo {
        transform: scale(0.65);
        margin: 30px auto;
    }

    .hero {
        padding: 96px 18px 0;
    }

    .hero-logo {
        width: min(200px, 72%);
    }

    .hero-badge {
        font-size: 0.72rem;
        padding: 6px 16px;
    }

    .sub-title {
        font-size: 1.15rem;
    }

    .hero-lead {
        font-size: 0.98rem;
    }

    .hero-meta-chip {
        font-size: 0.85rem;
        padding: 10px 14px;
    }

    .hero-photo-frame {
        width: 100%;
        aspect-ratio: auto;
    }

    .hero-photo-frame img {
        width: 100%;
        height: auto;
        object-fit: contain;
    }

    .manga-grid {
        gap: 12px;
        justify-content: center;
        overflow: visible;
    }

    .manga-item {
        padding: clamp(12px, 3vw, 18px);
        max-width: 200px;
        width: 200px;
        box-shadow: none;
        border: 1px solid rgba(148, 163, 184, 0.35);
        flex: 0 0 auto;
    }

    .manga-item--highlight {
        border: none;
        box-shadow: 0 12px 24px rgba(59, 160, 246, 0.32);
    }

    .manga-item--muted {
        background: #eef3f8;
        border: 1px solid rgba(148, 163, 184, 0.28);
        box-shadow: 0 8px 18px rgba(15, 35, 53, 0.08);
    }

    .manga-preview {
        border-radius: 10px;
        height: 160px;
        align-items: center;
    }

    .styles-cta-button {
        width: 100%;
        justify-content: center;
    }

    .manga-read-button {
        display: inline-flex;
        padding: 8px 14px;
        font-size: 0.82rem;
    }

    .manga-preview img {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .manga-caption,
    .manga-points,
    .manga-points li {
        display: none;
    }


    .problems-heading h2 {
        font-size: 1.75rem;
    }

    .problems-heading p {
        font-size: 0.95rem;
    }

    .problem-bullet {
        width: 34px;
        height: 34px;
        font-size: 0.95rem;
    }

    .problem-list {
        gap: 16px;
    }

    .problem-list-item {
        min-width: 100%;
        padding: 16px 18px;
    }

    .problem-visual img {
        width: clamp(200px, 70vw, 260px);
    }

}


/* ========================================
   アニメーション関連のスタイル
======================================== */
        .animation-demo {
            margin: 20px auto;
            max-width: 400px;
            perspective: 1000px;
            transform: scale(0.75);
        }

        .demo-container {
            position: relative;
            height: 450px;
            transform-style: preserve-3d;
        }

        .table-surface {
            position: absolute;
            bottom: 100px;
            left: 50%;
            transform: translateX(-55%) rotateX(20deg);
            width: 450px;
            height: 250px;
            /* Wood-like pattern using gradients */
            background-image:

                repeating-linear-gradient(
                    0deg,
                    #deb887 0px,
                    #deb887 20px,
                    #d2a679 20px,
                    #d2a679 21px
                );
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            z-index: 1;
        }

        .nfc-sticker {
            position: absolute;
            top: 40%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 120px;
            height: 120px;
            background: linear-gradient(135deg, #5DADE2 0%, #3498DB 100%);
            border-radius: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 20px rgba(52, 152, 219, 0.3);
        }

        .nfc-icon {
            margin-bottom: 5px;
        }

        .nfc-text {
            color: white;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .pulse-ring-once {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 120px;
            height: 120px;
            border: 9px solid rgba(135, 205, 251, 0.85);
            border-radius: 20px;
            transform: translate(-50%, -50%) scale(1);
            opacity: 0;
            animation: pulse-timeline 8s ease-in-out infinite;
        }

        @keyframes pulse-timeline {
            0%, 14.9% {
                opacity: 0;
                transform: translate(-50%, -50%) scale(1);
            }
            15% {
                opacity: 1;
                transform: translate(-50%, -50%) scale(1);
            }
            25% {
                opacity: 0;
                transform: translate(-50%, -50%) scale(1.8);
            }
            100% {
                opacity: 0;
                transform: translate(-50%, -50%) scale(1.8);
            }
        }

        .phone-3d {
            position: absolute;
            top: 80px;
            left: 60%;
            width: 180px;
            height: 320px;
            background: #2c3e50;
            border-radius: 20px;
            padding: 8px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            z-index: 10;
            transform: translateX(-50%) rotateY(-5deg) rotateX(-10deg);
            animation: phone-animation 8s ease-in-out infinite;
        }

        @keyframes phone-animation {
            0%,
            100% {
                transform: translateX(-10%) translateY(40px) translateZ(60px) rotateY(0deg) rotateX(0deg);
            }
            15% {
                transform: translateX(-50%) rotateY(20deg) translateZ(50px) rotateX(+20deg);
            }
            35% {
                transform: translateX(-10%)  translateY(40px) translateZ(60px) rotateY(0deg) rotateX(0deg);
            }
            70% {
                transform: translateX(-10%)  translateY(40px) translateZ(60px) rotateY(0deg) rotateX(0deg);
            }
            85% {
                transform: translateX(-10%)  translateY(40px) translateZ(60px) rotateY(0deg) rotateX(0deg);
            }
        }

        .phone-screen {
            width: 100%;
            height: 100%;
            background: #3498DB;
            border-radius: 15px;
            overflow: hidden;
            position: relative;
        }

        /* バナー通知 */
        .notification-banner {
            position: absolute;
            top: 20px;
            left: 50%;
            transform: translateX(-50%) translateY(-100px);
            width: 90%;
            background: white;
            border-radius: 12px;
            padding: 12px 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            gap: 12px;
            opacity: 0;
            border: 1px solid #e0e0e0;
            animation: banner-animation 8s ease-in-out infinite;
        }

        @keyframes banner-animation {

            0%,
            20% {
                transform: translateX(-50%) translateY(-100px);
                opacity: 0;
            }

            25%,
            45% {
                transform: translateX(-50%) translateY(0);
                opacity: 1;
            }

            50%,
            100% {
                transform: translateX(-50%) translateY(-100px);
                opacity: 0;
            }
        }

        .banner-icon {
            flex-shrink: 0;
        }

        .banner-text {
            flex: 1;
        }

        .banner-subtitle {
            font-size: 0.75rem;
            color: #7f8c8d;
        }

        .banner-arrow {
            font-size: 1.5rem;
            color: #3498DB;
            font-weight: 300;
        }

        /* タップエフェクト */
        .tap-effect {
            position: absolute;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(52, 152, 219, 0.4) 0%, transparent 70%);
            top: 12px;
            left: 50%;
            transform: translateX(-50%) scale(0);
            opacity: 0;
            animation: tap-animation 8s ease-in-out infinite;
        }

        @keyframes tap-animation {

            0%,
            39% {
                transform: translateX(-50%) scale(0);
                opacity: 0;
            }

            43% {
                transform: translateX(-50%) scale(1);
                opacity: 1;
            }

            46%,
            100% {
                transform: translateX(-50%) scale(1.5);
                opacity: 0;
            }
        }

        /* メニュー画面 */
        .menu-content {
            padding: 20px;
            opacity: 0;
            transform: scale(0.9);
            animation: menu-animation 8s ease-in-out infinite;
            background: white;
        }

        @keyframes menu-animation {

            0%,
            50% {
                opacity: 0;
                transform: scale(0.9);
            }

            55%,
            85% {
                opacity: 1;
                transform: scale(1);
            }

            90%,
            100% {
                opacity: 0;
                transform: scale(0.9);
            }
        }

        .menu-header {
            font-size: 1.1rem;
            font-weight: 700;
            color: #2c3e50;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0e0e0;
        }

        .menu-item {
            height: 35px;
            background: linear-gradient(90deg, #e0e0e0 30%, #f0f0f0 50%, #e0e0e0 70%);
            background-size: 200% 100%;
            border-radius: 6px;
            margin-bottom: 10px;
            animation: shimmer 2s infinite;
        }

        .menu-button {
            margin-top: 20px;
            margin-bottom: 20px;
            padding: 12px;
            background: linear-gradient(135deg, #5DADE2 0%, #3498DB 100%);
            color: white;
            text-align: center;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
        }

        @keyframes shimmer {
            0% {
                background-position: -200% 0;
            }

            100% {
                background-position: 200% 0;
            }
        }

        .touch-effect {
            position: absolute;
            bottom: 180px;
            left: 50%;
            transform: translate(-50%, -50%);
            pointer-events: none;
            z-index: 5;
        }

        .sparkle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: #FFD700;
            border-radius: 50%;
            opacity: 0;
            animation: sparkle-burst 8s ease-out infinite;
        }

        @keyframes sparkle-burst {

            0%,
            14%,
            20%,
            100% {
                opacity: 0;
                transform: translate(0, 0) scale(0);
            }

            15% {
                opacity: 1;
                transform: translate(0, 0) scale(1);
            }

            19% {
                opacity: 0;
                transform: translate(var(--tx), var(--ty)) scale(0);
            }
        }

        .sparkle-1 {
            --tx: -30px;
            --ty: -30px;
            animation-delay: 0s;
        }

        .sparkle-2 {
            --tx: 30px;
            --ty: -30px;
            animation-delay: 0.1s;
        }

        .sparkle-3 {
            --tx: -30px;
            --ty: 30px;
            animation-delay: 0.2s;
        }

        .sparkle-4 {
            --tx: 30px;
            --ty: 30px;
            animation-delay: 0.3s;
        }
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--fg-secondary);
    font-size: 0.9rem;
}