/* ローディング画面 */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    position: relative;
}

/* 虹のスピナー */
.rainbow-spinner {
    width: 200px;
    height: 200px;
    position: relative;
    margin: 0 auto 2rem;
}

.rainbow-arc {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 8px solid transparent;
    border-top-style: solid;
    transform: translate(-50%, -50%);
    animation: rainbowSpin 2s linear infinite;
}

.rainbow-arc-1 {
    border-top-color: #ff0000;
    animation-delay: 0s;
}

.rainbow-arc-2 {
    border-top-color: #ff7f00;
    width: 85%;
    height: 85%;
    animation-delay: -0.2s;
}

.rainbow-arc-3 {
    border-top-color: #ffff00;
    width: 70%;
    height: 70%;
    animation-delay: -0.4s;
}

.rainbow-arc-4 {
    border-top-color: #00ff00;
    width: 55%;
    height: 55%;
    animation-delay: -0.6s;
}

.rainbow-arc-5 {
    border-top-color: #0000ff;
    width: 40%;
    height: 40%;
    animation-delay: -0.8s;
}

.rainbow-arc-6 {
    border-top-color: #4b0082;
    width: 25%;
    height: 25%;
    animation-delay: -1s;
}

.rainbow-arc-7 {
    border-top-color: #9400d3;
    width: 10%;
    height: 10%;
    animation-delay: -1.2s;
}

@keyframes rainbowSpin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* ローディングロゴ */
.loading-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    animation: pulse 2s ease-in-out infinite;
}

.loading-logo i {
    font-size: 2rem;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: colorShift 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes colorShift {
    0%, 100% {
        filter: hue-rotate(0deg);
    }
    50% {
        filter: hue-rotate(360deg);
    }
}

/* ローディングテキスト */
.loading-text {
    color: white;
    font-size: 2rem;
    font-weight: 700;
    margin: 2rem 0 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

/* ローディングバー */
.loading-bar {
    width: 300px;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}

.loading-progress {
    height: 100%;
    background: linear-gradient(90deg, 
        #ff0000 0%, 
        #ff7f00 14%, 
        #ffff00 28%, 
        #00ff00 42%, 
        #0000ff 56%, 
        #4b0082 70%, 
        #9400d3 84%, 
        #ff0000 100%);
    background-size: 200% 100%;
    border-radius: 10px;
    animation: loadingProgress 2s ease-in-out infinite, rainbowFlow 3s linear infinite;
}

@keyframes loadingProgress {
    0% {
        width: 0%;
    }
    50% {
        width: 70%;
    }
    100% {
        width: 100%;
    }
}

@keyframes rainbowFlow {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 200% 50%;
    }
}

/* モバイル対応 */
@media (max-width: 768px) {
    .rainbow-spinner {
        width: 150px;
        height: 150px;
    }
    
    .loading-logo {
        width: 50px;
        height: 50px;
    }
    
    .loading-logo i {
        font-size: 1.5rem;
    }
    
    .loading-text {
        font-size: 1.5rem;
    }
    
    .loading-bar {
        width: 250px;
    }
}

/* リセットとベーススタイル */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* フォーカス表示の改善 */
*:focus {
    outline: 2px solid #6366f1;
    outline-offset: 2px;
}

/* スキップリンク */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #6366f1;
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1001;
}

.skip-link:focus {
    top: 6px;
}

/* リセットとベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    /* スマホでのスクロール改善 */
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ナビゲーション */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #6366f1;
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #6366f1;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* ハンバーガーメニューのアニメーション */
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* モバイルメニュー */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1000;
    }
}

    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-menu a {
        font-size: 1.2rem;
        padding: 1rem 2rem;
        border-radius: 8px;
        transition: all 0.3s ease;
    }
    
    .nav-menu a:hover {
        background: rgba(99, 102, 241, 0.1);
        transform: translateY(-2px);
    }
    
    .nav-menu a.active {
        background: rgba(99, 102, 241, 0.2);
        color: #6366f1;
    }


@media (max-width: 768px) {
    .hamburger {
        display: flex;
        z-index: 1001;
    }
}

/* ヒーローセクション */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    clip-path: inset(0 0 0 0);
}

.hero-background {
    position: absolute;
    top: -1px;
    left: -1px;
    width: calc(100% + 2px);
    height: calc(100% + 2px);
    z-index: -1;
}

.rainbow-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        #667eea 0%, 
        #764ba2 25%, 
        #f093fb 50%, 
        #f5576c 75%, 
        #4facfe 100%);
    opacity: 0.1;
    animation: rainbowShift 8s ease-in-out infinite;
    transform-origin: center center;
}

@keyframes rainbowShift {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.05) rotate(2deg); }
}

.floating-clouds {
    position: absolute;
    width: 100%;
    height: 100%;
}

.cloud {
    position: absolute;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50px;
    opacity: 0.7;
    animation: float 6s ease-in-out infinite;
}

.cloud-1 {
    width: 100px;
    height: 40px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.cloud-2 {
    width: 80px;
    height: 30px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.cloud-3 {
    width: 120px;
    height: 50px;
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(-20px) translateX(10px); }
}

/* 虹のアニメーション */
.rainbow-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

.rainbow {
    position: absolute;
    border-radius: 50%;
    border: 8px solid transparent;
    opacity: 0;
    animation: rainbowAppear 12s ease-in-out infinite;
}

.rainbow-1 {
    width: 600px;
    height: 600px;
    top: 50px;
    right: -200px;
    border-top-color: #ff0000;
    animation-delay: 0s;
}

.rainbow-2 {
    width: 550px;
    height: 550px;
    top: 75px;
    right: -175px;
    border-top-color: #ff7f00;
    animation-delay: 0.5s;
}

.rainbow-3 {
    width: 500px;
    height: 500px;
    top: 100px;
    right: -150px;
    border-top-color: #ffff00;
    animation-delay: 1s;
}

.rainbow-4 {
    width: 450px;
    height: 450px;
    top: 125px;
    right: -125px;
    border-top-color: #00ff00;
    animation-delay: 1.5s;
}

.rainbow-5 {
    width: 400px;
    height: 400px;
    top: 150px;
    right: -100px;
    border-top-color: #0000ff;
    animation-delay: 2s;
}

.rainbow-6 {
    width: 350px;
    height: 350px;
    top: 175px;
    right: -75px;
    border-top-color: #4b0082;
    animation-delay: 2.5s;
}

.rainbow-7 {
    width: 300px;
    height: 300px;
    top: 200px;
    right: -50px;
    border-top-color: #9400d3;
    animation-delay: 3s;
}

@keyframes rainbowAppear {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(50px);
    }
    20% {
        opacity: 0.8;
        transform: scale(1) translateY(0);
    }
    80% {
        opacity: 0.8;
        transform: scale(1) translateY(0);
    }
    100% {
        opacity: 0;
        transform: scale(1.2) translateY(-20px);
    }
}

.hero-content {
    z-index: 2;
    max-width: 800px;
    padding: 0 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 3s ease-in-out infinite;
}

@keyframes gradientFlow {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(180deg); }
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color:　rgb(171, 220, 226);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #6366f1;
    border: 2px solid #6366f1;
}

.btn-secondary:hover {
    background: #6366f1;
    color: white;
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: #6366f1;
    border: 2px solid #6366f1;
}

.btn-outline:hover {
    background: #6366f1;
    color: white;
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-right: 3px solid #6366f1;
    border-bottom: 3px solid #6366f1;
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* セクション共通スタイル */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* サービスセクション */
.services {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.service-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #333;
}

.service-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    padding: 0.5rem 0;
    color: #555;
    position: relative;
    padding-left: 1.5rem;
}

.service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4ecdc4;
    font-weight: bold;
}

/* 料金セクション */
.pricing {
    padding: 6rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.pricing .section-title {
    color: white;
    -webkit-text-fill-color: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff);
}

.pricing-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

.pricing-card.premium {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: scale(1.05);
}

.pricing-card.premium:hover {
    transform: scale(1.05) translateY(-10px);
}

.pricing-header h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: white;
}

.price {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #feca57;
}

.period {
    font-size: 1.2rem;
    opacity: 0.8;
}

.description {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.pricing-features ul {
    list-style: none;
    text-align: left;
}

.pricing-features li {
    padding: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: white;
    opacity: 0.9;
}

.pricing-features i {
    color: #4ecdc4;
    font-size: 1.1rem;
    min-width: 20px;
}

.additional-services {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.additional-services h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: white;
}

.service-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.service-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #feca57, #ff9ff3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-icon i {
    font-size: 1.5rem;
    color: white;
}

.service-content h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: white;
}

.service-content .price {
    font-size: 1.3rem;
    font-weight: 600;
    color: #feca57;
    margin-bottom: 0.5rem;
    display: block;
}

.service-content .description {
    font-size: 0.9rem;
    opacity: 0.8;
    margin: 0;
}

/* 会社概要セクション */
.about {
    padding: 6rem 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    text-align: center;
    padding: 1.5rem;
}

.feature i {
    font-size: 2.5rem;
    color: #6366f1;
    margin-bottom: 1rem;
}

.feature h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.feature p {
    color: #666;
    font-size: 0.9rem;
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.rainbow-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff, #ff6b6b);
    animation: rotate 10s linear infinite;
    position: relative;
}

.rainbow-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 250px;
    height: 250px;
    background: white;
    border-radius: 50%;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}



/* お問い合わせセクション */
.contact {
    padding: 6rem 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #333;
}

.contact-info p {
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-method i {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.contact-method h4 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: #333;
}

.contact-method p {
    color: #666;
    margin: 0;
}

/* お問い合わせリンクのスタイル */
.contact-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* スクロール動作の改善 */
html {
    scroll-behavior: smooth;
}

/* スマホでのスクロール改善 */
@media (max-width: 768px) {
    html {
        scroll-behavior: auto; /* スマホでは自動スクロールを無効化 */
    }
    
    body {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain; /* オーバースクロールを防止 */
        scroll-snap-type: y proximity; /* スクロールスナップを有効化 */
    }
    
    /* セクションごとのスクロールスナップ */
    .hero, .services, .pricing, .about, .contact {
        scroll-snap-align: start;
        scroll-snap-stop: always;
    }
}

.contact-link {
    color: #6366f1;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.contact-link:hover {
    color: #4c51bf;
    border-bottom-color: #6366f1;
    transform: translateX(5px);
}

.contact-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #6366f1;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* フッター */
.footer {
    background: #2d3748;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: #e2e8f0;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #4a5568;
    color: #a0aec0;
}

/* SNSアイコンのスタイル */
.fab {
    font-family: "Font Awesome 5 Brands";
    font-weight: 400;
}

.fab.fa-instagram {
    color: #e4405f;
    margin-right: 0.5rem;
}

.footer-section a:hover .fab.fa-instagram {
    color: #c13584;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.premium {
        transform: none;
    }
    
    .pricing-card.premium:hover {
        transform: translateY(-10px);
    }
    
    .service-items {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .rainbow-circle {
        width: 200px;
        height: 200px;
    }
    
    .rainbow-circle::before {
        width: 150px;
        height: 150px;
    }
    
    /* モバイルでの虹のサイズ調整 */
    .rainbow-1 { width: 400px; height: 400px; top: 30px; right: -150px; }
    .rainbow-2 { width: 350px; height: 350px; top: 50px; right: -125px; }
    .rainbow-3 { width: 300px; height: 300px; top: 70px; right: -100px; }
    .rainbow-4 { width: 250px; height: 250px; top: 90px; right: -75px; }
    .rainbow-5 { width: 200px; height: 200px; top: 110px; right: -50px; }
    .rainbow-6 { width: 150px; height: 150px; top: 130px; right: -25px; }
    .rainbow-7 { width: 100px; height: 100px; top: 150px; right: 0; }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* モバイルでのお問い合わせリンクの調整 */
    .contact-links {
        gap: 0.75rem;
    }
    
    .contact-link {
        font-size: 1.1rem;
        padding: 0.75rem 0;
    }
}

/* お問い合わせフォーム送信ボタンのローディング状態 */
.btn-loading {
    display: none;
}

.btn-loading i {
    margin-right: 0.5rem;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* トップへ戻るボタン */
.back-to-top-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3, #54a0ff);
    background-size: 400% 400%;
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    animation: rainbowFlow 3s ease-in-out infinite;
}

.back-to-top-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

.back-to-top-btn:active {
    transform: scale(0.95);
}

.back-to-top-btn.show {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.back-to-top-btn i {
    animation: bounce 2s infinite;
}

@keyframes rainbowFlow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-3px);
    }
    60% {
        transform: translateY(-1px);
    }
}