/* Base Styles */
:root {
    --primary-color: #2E7D32;
    --primary-light: #4CAF50;
    --primary-dark: #1B5E20;
    --secondary-color: #E8F5E9;
    --accent-color: #81C784;
    --text-color: #333;
    --text-light: #666;
    --white: #fff;
    --black: #000;
    --gray-light: #f5f5f5;
    --gray: #ddd;
    --shadow: 0 10px 30px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --section-padding: 100px 0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

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

section {
    position: relative;
    overflow: hidden;
}

.section {
    padding: var(--section-padding);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-family: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

/* Custom Cursor */
.cursor {
    position: fixed;
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

.cursor.active {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
}

.cursor.hover {
    width: 0;
    height: 0;
    background-color: transparent;
}

.cursor-follower {
    position: fixed;
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-light);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s, border-color 0.3s, transform 0.3s;
}

.cursor-follower.active {
    width: 30px;
    height: 30px;
    border-color: var(--accent-color);
    transform: translate(-50%, -50%) scale(0.8);
}

.cursor-follower.hover {
    width: 60px;
    height: 60px;
    border-color: var(--primary-color);
    border-width: 1px;
    transform: translate(-50%, -50%) scale(1.2);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 15px;
}

p {
    margin-bottom: 15px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: width 0.3s ease;
    z-index: -1;
}

.btn:hover::before {
    width: 100%;
}

.btn i {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.btn:hover i {
    transform: translateX(5px);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 10px 20px rgba(46, 125, 50, 0.3);
    transform: translateY(-3px);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.2);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 20px 0;
}

.header.scrolled {
    background-color: var(--white);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
    font-weight: 700;
    font-size: 24px;
    color: var(--white);
    transition: var(--transition);
}

.header.scrolled .logo {
    color: var(--primary-color);
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
}

.logo-accent {
    font-size: 14px;
    color: var(--accent-color);
    letter-spacing: 2px;
}

.nav-list {
    display: flex;
    list-style: none;
}

.nav-item {
    margin-left: 40px;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.header.scrolled .nav-link {
    color: var(--text-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    width: 30px;
    height: 20px;
    justify-content: space-between;
    cursor: pointer;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--white);
    transition: var(--transition);
}

.header.scrolled .menu-toggle span {
    background-color: var(--text-color);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    position: relative;
    background-color: var(--primary-dark);
    color: var(--white);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('images/topp.png');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
}

.hero-water {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(to bottom, transparent, rgba(46, 125, 50, 0.3));
    z-index: -1;
    animation: water-wave 10s infinite linear;
}

@keyframes water-wave {
    0% {
        transform: translateX(0) translateZ(0) scaleY(1);
    }
    50% {
        transform: translateX(-25%) translateZ(0) scaleY(0.8);
    }
    100% {
        transform: translateX(-50%) translateZ(0) scaleY(1);
    }
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    line-height: 1.2;
    margin-bottom: 30px;
    font-weight: 700;
}

.text-reveal {
    display: block;
    overflow: hidden;
    position: relative;
}

.text-reveal::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--accent-color);
    transform: translateX(-100%);
    animation: text-reveal 1.5s forwards;
}

@keyframes text-reveal {
    0% {
        transform: translateX(-100%);
    }
    50% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(100%);
    }
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--white);
    font-size: 14px;
    opacity: 0.8;
    animation: fade-in 2s 1s forwards;
    opacity: 0;
}

@keyframes fade-in {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 0.8;
    }
}

.scroll-indicator {
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 15px;
    margin-top: 10px;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    width: 6px;
    height: 6px;
    background-color: var(--white);
    border-radius: 50%;
    transform: translateX(-50%);
    animation: scroll-down 2s infinite;
}

@keyframes scroll-down {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(30px);
        opacity: 0;
    }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 2px;
    margin-bottom: 15px;
    position: relative;
}

.section-tag::before, .section-tag::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 1px;
    background-color: var(--primary-color);
}

.section-tag::before {
    left: -40px;
}

.section-tag::after {
    right: -40px;
}

.section-title {
    font-size: 40px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* Problems Section */
.problems {
    background-color: var(--white);
    position: relative;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.problem-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background-color: var(--primary-color);
    z-index: -1;
    transition: height 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-10px);
}

.problem-card:hover::before {
    height: 100%;
    opacity: 0.05;
}

.problem-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.problem-title {
    font-size: 22px;
    margin-bottom: 15px;
}

.problem-desc {
    color: var(--text-light);
    margin-bottom: 0;
}

.water-waves {
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    z-index: 0;
}

/* Solution Section */
.solution {
    background-color: var(--secondary-color);
    position: relative;
}

.solution-content {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-top: 50px;
}

.solution-text {
    flex: 1;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.solution-feature {
    display: flex;
    align-items: flex-start;
}

.feature-icon {
    font-size: 20px;
    color: var(--primary-color);
    margin-right: 15px;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.feature-text p {
    color: var(--text-light);
    margin-bottom: 0;
}

.solution-image {
    flex: 1;
}

.image-wrapper {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.image-wrapper img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.image-wrapper:hover img {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-wrapper:hover .image-overlay {
    opacity: 1;
}

.play-button {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
}

/* Products Section */
.products {
    background-color: var(--white);
}

.product-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
    border-bottom: 1px solid var(--gray);
}

.tab-btn {
    padding: 15px 30px;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-light);
    position: relative;
    transition: var(--transition);
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    width: 100%;
}

.tab-content {
    display: none;
    animation: fade-in 0.5s ease;
}

.tab-content.active {
    display: block;
}

.product-card {
    background-color: var(--gray-light);
    border-radius: var(--border-radius);
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow);
}

.product-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}

.product-icon {
    width: 70px;
    height: 70px;
    background-color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    color: var(--primary-color);
    margin-right: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.product-title h3 {
    font-size: 24px;
    margin-bottom: 5px;
}

.product-title p {
    color: var(--text-light);
    margin-bottom: 0;
}

.product-details {
    display: flex;
    gap: 50px;
}

.product-info {
    flex: 1;
}

.product-info h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.feature-list {
    margin-top: 30px;
}

.feature-item {
    display: flex;
    margin-bottom: 20px;
}

.feature-item h5 {
    font-size: 18px;
    margin-bottom: 5px;
}

.product-image {
    flex: 1;
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.product-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 8px 15px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
}

/* Selector Guide Section */
.selector-guide {
    background-color: var(--secondary-color);
}

.guide-wrapper {
    display: flex;
    gap: 30px;
    margin-top: 50px;
}

.guide-tabs {
    flex: 0 0 200px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.guide-tab {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.guide-tab i {
    font-size: 20px;
    margin-right: 15px;
    color: var(--primary-color);
}

.guide-tab.active {
    background-color: var(--primary-color);
    color: var(--white);
}

.guide-tab.active i {
    color: var(--white);
}

.guide-content {
    flex: 1;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.guide-item {
    display: none;
}

.guide-item.active {
    display: flex;
    animation: fade-in 0.5s ease;
}

.guide-image {
    flex: 0 0 40%;
}

.guide-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.guide-info {
    flex: 1;
    padding: 40px;
}

.guide-info h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.guide-products {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}

.guide-product {
    flex: 1;
    background-color: var(--gray-light);
    padding: 20px;
    border-radius: var(--border-radius);
}

.guide-product h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.guide-product ul {
    list-style-type: none;
    margin-top: 15px;
}

.guide-product ul li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
}

.guide-product ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Process Section */
.process {
    background-color: var(--white);
}

.process-timeline {
    position: relative;
    margin-top: 50px;
    padding: 30px 0;
}

.timeline-line {
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background-color: var(--primary-light);
    transform: translateX(-50%);
}

.timeline-items {
    position: relative;
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 50px;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-dot {
    position: absolute;
    top: 20px;
    left: 50%;
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-content {
    width: 80%;
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    right: -10px;
    width: 20px;
    height: 20px;
    background-color: var(--white);
    transform: rotate(45deg);
}

.timeline-item:nth-child(even) .timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    left: -10px;
    width: 20px;
    height: 20px;
    background-color: var(--white);
    transform: rotate(45deg);
}

.timeline-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    color: var(--white);
    margin-bottom: 20px;
}

.timeline-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* Case Studies Section */
.case-studies {
    background-color: var(--secondary-color);
}

.cases-slider {
    position: relative;
    margin-top: 50px;
    overflow: hidden;
}

.cases-track {
    display: flex;
    transition: transform 0.5s ease;
}

.case-card {
    flex: 0 0 calc(33.333% - 20px);
    margin-right: 30px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-10px);
}

.case-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.1);
}

.case-tag {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 500;
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.case-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.case-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 500;
}

.case-link i {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.case-link:hover i {
    transform: translateX(5px);
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
}

.slider-prev, .slider-next {
    width: 50px;
    height: 50px;
    background-color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.slider-prev:hover, .slider-next:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.slider-dots {
    display: flex;
    margin: 0 20px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--gray);
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--primary-color);
}

/* FAQ Section */
.faq {
    background-color: var(--white);
}

.accordion {
    margin-top: 50px;
}

.accordion-item {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    overflow: hidden;
}

.accordion-header {
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.accordion-header h3 {
    font-size: 18px;
    margin-bottom: 0;
    font-weight: 500;
}

.accordion-icon {
    position: relative;
    width: 20px;
    height: 20px;
}

.accordion-icon span {
    position: absolute;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.accordion-icon span:first-child {
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    transform: translateY(-50%);
}

.accordion-icon span:last-child {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    transform: translateX(-50%);
}

.accordion-item.active .accordion-icon span:last-child {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}

.accordion-content {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.5s ease;
}

.accordion-item.active .accordion-content {
    padding: 0 30px 30px;
    max-height: 1000px;
}

/* Contact Section */
.contact {
    background-color: var(--primary-dark);
    color: var(--white);
    position: relative;
}

.contact .section-title, .contact .section-subtitle {
    color: var(--white);
}

.contact-container {
    display: flex;
    gap: 50px;
    margin-top: 50px;
}

.contact-info {
    flex: 1;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 40px;
}

.info-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    margin-right: 20px;
    color: var(--accent-color);
}

.info-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.info-content p {
    margin-bottom: 5px;
}

.info-content span {
    font-size: 14px;
    opacity: 0.8;
}

.contact-form {
    flex: 1;
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    color: var(--text-color);
}

.form-header {
    margin-bottom: 30px;
}

.form-header h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.required {
    color: #f44336;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--gray);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 16px;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(46, 125, 50, 0.2);
    outline: none;
}

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

.form-check {
    display: flex;
    align-items: center;
}

.form-check input {
    margin-right: 10px;
}

.contact-wave {
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    z-index: 0;
}

/* Footer */
.footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.footer-logo {
    flex: 0 0 300px;
}

.footer-logo a {
    display: flex;
    flex-direction: column;
    font-weight: 700;
    font-size: 24px;
    margin-bottom: 20px;
}

.footer-nav {
    display: flex;
    gap: 60px;
}

.footer-col h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

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

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

/* Sticky CTA */
.sticky-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99;
}

.cta-button {
    display: flex;
    align-items: center;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: 0 5px 20px rgba(46, 125, 50, 0.4);
    transition: var(--transition);
}

.cta-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(46, 125, 50, 0.5);
}

.cta-icon {
    margin-right: 10px;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--white);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-5px);
}

/* Video Modal */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.modal-content {
    width: 80%;
    max-width: 900px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: var(--white);
    font-size: 30px;
    cursor: pointer;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Form Success */
.form-success {
    text-align: center;
    padding: 40px 0;
}

.success-icon {
    font-size: 60px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

/* Animations */
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media screen and (max-width: 1200px) {
    .hero-title {
        font-size: 48px;
    }
    
    .case-card {
        flex: 0 0 calc(50% - 15px);
    }
}

@media screen and (max-width: 992px) {
    .section {
        padding: 80px 0;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .solution-content {
        flex-direction: column;
    }
    
    .solution-features {
        grid-template-columns: 1fr;
    }
    
    .product-details {
        flex-direction: column;
    }
    
    .product-image {
        margin-top: 30px;
    }
    
    .guide-wrapper {
        flex-direction: column;
    }
    
    .guide-tabs {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .guide-tab {
        flex: 1;
    }
    
    .guide-item.active {
        flex-direction: column;
    }
    
    .guide-image {
        flex: 0 0 200px;
    }
    
    .timeline-item {
        padding-right: 0;
        padding-left: 70px;
    }
    
    .timeline-item:nth-child(even) {
        padding-left: 70px;
    }
    
    .timeline-line {
        left: 20px;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .timeline-content {
        width: 100%;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        display: none;
    }
    
    .contact-container {
        flex-direction: column;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-nav {
        flex-wrap: wrap;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
    }
}

@media screen and (max-width: 768px) {
    .header {
        padding: 15px 0;
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--white);
        z-index: 1000;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        padding: 80px 40px;
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
    }
    
    .nav-item {
        margin: 0 0 20px 0;
    }
    
    .nav-link {
        color: var(--text-color);
        font-size: 18px;
    }
    
    .menu-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .hero {
        height: auto;
        padding: 150px 0 100px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .problem-card {
        padding: 30px 20px;
    }
    
    .guide-products {
        flex-direction: column;
    }
    
    .case-card {
        flex: 0 0 100%;
    }
    
    .cursor, .cursor-follower {
        display: none;
    }
}

@media screen and (max-width: 576px) {
    .section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .problem-card {
        padding: 25px 15px;
    }
    
    .product-card {
        padding: 30px 20px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}

/* Ripple effect container to hold ripples */
.ripple-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  overflow: visible;
  z-index: 9999;
}

/* Ripple element style */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 125, 50, 0.7) 0%, rgba(129, 199, 132, 0.5) 30%, rgba(176, 255, 255, 0.3) 70%, rgba(255, 255, 255, 0.1) 100%);
  transform: scale(0);
  animation: ripple-expand-fade 1.8s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
  pointer-events: none;
  box-shadow: 0 0 20px rgba(46, 125, 50, 0.3);
}

@keyframes ripple-expand-fade {
  0% {
    transform: scale(0) translateY(0);
    opacity: 0.8;
  }
  40% {
    transform: scale(1.5) translateY(-20px);
    opacity: 0.6;
  }
  80% {
    transform: scale(2.5) translateY(-10px);
    opacity: 0.3;
    background: radial-gradient(circle, rgba(129, 199, 132, 0.3) 0%, rgba(176, 255, 255, 0.4) 50%, rgba(255, 255, 255, 0.5) 100%);
  }
  100% {
    transform: scale(3) translateY(0);
    opacity: 0;
    background: radial-gradient(circle, rgba(176, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.3) 100%);
  }
}

/* レスポンシブ画像 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* レスポンシブタイポグラフィ */
html {
    font-size: 16px;
}

@media screen and (max-width: 1200px) {
    html {
        font-size: 15px;
    }
}

@media screen and (max-width: 992px) {
    html {
        font-size: 14px;
    }
}

@media screen and (max-width: 768px) {
    html {
        font-size: 13px;
    }
}

/* フォントサイズをremで設定 */
.hero-title {
    font-size: 3.5rem;
}

.section-title {
    font-size: 2.5rem;
}

/* アクセシビリティ向上のためのスタイル */
:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    z-index: 9999;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* 高コントラストモード対応 */
@media (prefers-contrast: more) {
    :root {
        --primary-color: #006400;
        --text-color: #000000;
        --white: #ffffff;
    }
    
    .btn, .nav-link, .footer a {
        text-decoration: underline;
    }
}

/* 暗いテーマ対応 */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #4CAF50;
        --primary-light: #81C784;
        --primary-dark: #2E7D32;
        --secondary-color: #1E3A1E;
        --text-color: #f0f0f0;
        --text-light: #cccccc;
        --white: #121212;
        --black: #f0f0f0;
        --gray-light: #2a2a2a;
        --gray: #444444;
    }
    
    body {
        background-color: #121212;
    }
}

/* フォーム送信関連のスタイル */
.form-response {
    margin: 15px 0;
}

.form-error {
    background-color: #ffebee;
    color: #c62828;
    padding: 10px 15px;
    border-radius: var(--border-radius);
    border-left: 4px solid #c62828;
}

.form-success {
    text-align: center;
    padding: 40px 0;
}

.success-icon {
    font-size: 60px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.form-success h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

/* 送信ボタン無効化時のスタイル */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}