:root {
    --primary-color: #05A7BE;
    --primary-hover-color: #087EA2;
    --primary-light-color: #E0F5F8;
    --secondary-color: #1ED7CD;
    --secondary-hover-color: #18C4B8;
    --secondary-light-color: #E6FAF9;
    --accent-color: #FF7722;
    --accent-hover-color: #E66A1F;
    --accent-light-color: #FFF0E6;
    --gradient-primary: linear-gradient(135deg, #05A7BE, #1ED7CD);
    --gradient-accent: linear-gradient(135deg, #FF7722, #FFB366);
    --dark-background: #0A1628;
    --background-color: #F0F7FA;
    --text-color: #2C3E50;
    --text-light-color: #5A6B7B;
    --text-dark-color: #1A2533;
    --card-background: #FFFFFF;
    --border-color: #D0E1E9;
    --light-border-color: #E5F0F5;
    --hover-color: #E1EEF3;
    --shadow-color: rgba(5, 167, 190, 0.1);
    --shadow-large: 0 20px 40px rgba(5, 167, 190, 0.15);
    --transition-duration: 0.3s;
}

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

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

/* β版バッジ */
.beta-badge {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    letter-spacing: 0.5px;
    margin-left: 12px;
    position: relative;
    top: -12px;
}

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

.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: color var(--transition-duration);
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-cta {
    background: var(--gradient-primary);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.geometric-pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, var(--primary-light-color) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--secondary-light-color) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, var(--accent-light-color) 0%, transparent 50%);
}

.particle-background {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle, var(--primary-color) 1px, transparent 1px),
        radial-gradient(circle, var(--secondary-color) 1px, transparent 1px);
    background-size: 50px 50px, 80px 80px;
    background-position: 0 0, 25px 25px;
    opacity: 0.1;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-50px, -50px); }
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    text-align: center;
    max-width: 100%;
    width: 100%;
}

.hero-tags {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.tag {
    background: var(--gradient-accent);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.hero-lead {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.hero-lead .brand-name {
    text-transform: none;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-dark-color);
    white-space: normal;
}

.hero-title .title-line {
    display: block;
}

.hero-title br {
    display: block;
    content: "";
    margin: 0;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-light-color);
    margin-bottom: 2rem;
}

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

.btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 30px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-duration);
    text-decoration: none;
    display: inline-block;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 10px 30px var(--shadow-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px var(--shadow-color);
}

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

.btn-secondary:hover {
    background: var(--primary-light-color);
}

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

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.hero-visual {
    position: relative;
    animation: float-device 6s ease-in-out infinite;
    max-width: 900px;
    width: 100%;
}

.hero-image {
    width: 100%;
    max-width: 900px;
    height: auto;
    border-radius: 20px;
}

@keyframes float-device {
    0%, 100% { transform: translateY(0) rotate(-5deg); }
    50% { transform: translateY(-20px) rotate(-3deg); }
}

.macbook-mockup {
    background: linear-gradient(145deg, #f0f0f0, #ffffff);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--shadow-large);
}

.mockup-screen {
    background: white;
    border-radius: 8px;
    padding: 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    min-height: 300px;
}

.chat-interface {
    border-right: 1px solid var(--light-border-color);
    padding-right: 20px;
}

.chat-bubble {
    padding: 10px 15px;
    border-radius: 15px;
    margin-bottom: 10px;
    max-width: 80%;
    animation: slideIn 0.5s ease-out;
}

.chat-bubble.ai {
    background: var(--primary-light-color);
    color: var(--primary-color);
}

.chat-bubble.user {
    background: var(--secondary-light-color);
    color: var(--secondary-color);
    margin-left: auto;
}

.chat-bubble.typing::after {
    content: '...';
    animation: typing 1.5s infinite;
}

@keyframes typing {
    0%, 60%, 100% { opacity: 0; }
    30% { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.requirements-list h3 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: var(--text-dark-color);
}

.requirements-items {
    list-style: none;
}

.requirement-item {
    padding: 8px;
    margin-bottom: 8px;
    background: var(--background-color);
    border-radius: 8px;
    color: var(--text-color);
    animation: fadeIn 0.5s ease-out;
}

.requirement-item.generating {
    opacity: 0.5;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.companies {
    padding: 80px 0;
    background: white;
}

.companies-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--text-dark-color);
}

.companies-carousel {
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

.carousel-track {
    display: flex;
    gap: 3rem;
    animation: scroll 30s linear infinite;
    width: fit-content;
}

.carousel-track .company-logo {
    flex-shrink: 0;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - 1.5rem)); }
}

.company-logo {
    min-width: 150px;
    height: 60px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--transition-duration);
}

.company-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
}

/* ================================================
   Alcedo Capabilities Section（メインセクション）
   ================================================ */

.alcedo-capabilities {
    position: relative;
    padding: 150px 0;
    overflow: hidden;
}

.capabilities-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
        var(--primary-color) 0%,
        var(--secondary-color) 100%);
    opacity: 0.7;
    z-index: -1;
}

.capabilities-main-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    text-align: center;
    margin-bottom: 5rem;
    color: white;
}

.capabilities-main-title .title-small {
    font-size: 0.5em;
    display: block;
    opacity: 0.9;
}

.capabilities-main-title .title-large {
    font-size: 1em;
    display: block;
    color: white;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.alcedo-capabilities .cta-group {
    margin-top: 4rem;
}

.capability-card {
    background: white;
    border-radius: 30px;
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    min-height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 3番目のカードを下段中央に配置 */
.capability-card:nth-child(3) {
    grid-column: 1 / -1;
    max-width: 50%;
    margin: 0 auto;
}

.capability-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
}

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

.capability-card .card-title {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    color: var(--text-dark-color);
    text-align: center;
}

.capability-card .card-catch {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.capability-card .card-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light-color);
    text-align: center;
}

.capability-card .card-description strong {
    color: var(--primary-color);
    font-weight: 700;
}

.capability-card .card-description small {
    font-size: 0.9rem;
    opacity: 0.8;
}

.capability-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.capability-icon svg {
    width: 100%;
    height: 100%;
    transition: all 0.3s;
}

.card-predict .capability-icon svg {
    color: #05A7BE;
}

.card-brainstorm .capability-icon svg {
    color: #1ED7CD;
}

.card-rfp .capability-icon svg {
    color: #FF7722;
}

.capability-card:hover .capability-icon svg {
    transform: scale(1.15);
}

/* カードごとに異なる色を設定 */
/* カード1: 失敗を先読み - プライマリカラー */
.card-predict {
    border-left: 8px solid var(--primary-color);
}

.card-predict .card-catch {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* カード2: 壁打ち - セカンダリカラー */
.card-brainstorm {
    border-left: 8px solid var(--secondary-color);
}

.card-brainstorm .card-catch {
    color: var(--secondary-color);
}

/* カード3: RFP作成 - アクセントカラー */
.card-rfp {
    border-left: 8px solid var(--accent-color);
}

.card-rfp .card-catch {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.challenges {
    padding: 70px 0;
    background: linear-gradient(135deg, var(--background-color) 0%, white 100%);
    position: relative;
}

.challenges::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    right: 0;
    height: 100px;
    background: white;
    transform: skewY(-2deg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-dark-color);
}

.challenges .section-title {
    max-width: 1400px;
    width: calc(100% + 200px);
    margin-left: -100px;
    margin-right: -100px;
    margin-bottom: 3rem;
    padding-left: 8%;
    padding-right: 8%;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
}

.challenge-card {
    background: transparent;
    padding: 1.5rem 0 1.5rem 1.5rem;
    border-radius: 0;
    box-shadow: none;
    transition: none;
    overflow: visible;
    position: relative;
    border-left: none;
    border-bottom: 1px solid var(--border-color);
}

/* 最後の項目もボーダーあり（削除） */

/* 箇条書き風の丸印 */
.challenge-card::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 1.5rem;
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

/* 各カードの色分け（削除） */
.card-consultant {
    /* border削除 */
}

.card-sales {
    /* border削除 */
}

.card-development {
    /* border削除 */
}

.challenge-card:hover {
    /* ホバーエフェクト削除 */
}

/* .card-category スタイルは削除（カテゴリタグを使用しないため） */

.card-icon {
    display: none;
}

.card-icon svg {
    display: none;
}

.card-consultant .card-icon svg {
    display: none;
}

.card-sales .card-icon svg {
    display: none;
}

.card-development .card-icon svg {
    display: none;
}

.challenge-card:hover .card-icon svg {
    /* ホバーエフェクト削除 */
}

.challenge-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.challenge-list li {
    font-size: 1.1rem;
    line-height: 1.6;
    padding: 0.5rem 0 0.5rem 1.5rem;
    color: var(--text-color);
    font-weight: 400;
    position: relative;
}

.challenge-list li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.challenges-summary {
    max-width: 900px;
    margin: 2rem auto 0;
    padding: 1.5rem;
    text-align: center;
    background: rgba(5, 167, 190, 0.03);
    border-radius: 15px;
    border: 1px solid rgba(5, 167, 190, 0.1);
}

.challenges-summary p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-light-color);
    margin: 0;
}

.challenge-description {
    font-size: 1.3rem;
    line-height: 1.7;
    color: var(--text-color);
    margin: 0;
}

/* 既存のカードクラスは削除（上記で個別設定済み） */

/* ================================================
   Alcedoの使い方セクション
   ================================================ */

/* ========================================
   フルスクリーン特徴セクション
   ======================================== */

.features-fullscreen-wrapper {
    background: transparent;
}

.features-title-section {
    padding: 100px 0 50px;
    background: linear-gradient(180deg, var(--background-color) 0%, rgba(5, 167, 190, 0.02) 100%);
}

.features-title-section .section-title {
    text-align: center;
}

.feature-fullscreen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 80px 0;
}

.feature-fullscreen-primary {
    background: linear-gradient(180deg, rgba(5, 167, 190, 0.02) 0%, rgba(5, 167, 190, 0.08) 100%);
}

.feature-fullscreen-secondary {
    background: linear-gradient(180deg, rgba(30, 215, 205, 0.03) 0%, rgba(30, 215, 205, 0.08) 100%);
}

.feature-fullscreen-accent {
    background: linear-gradient(180deg, rgba(255, 119, 34, 0.03) 0%, rgba(255, 119, 34, 0.08) 100%);
}

.background-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: clamp(8rem, 20vw, 15rem);
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 2px rgba(0, 0, 0, 0.12);
    text-stroke: 2px rgba(0, 0, 0, 0.12);
    opacity: 1;
    pointer-events: none;
    white-space: nowrap;
    user-select: none;
    z-index: 1;
}

.feature-fullscreen-primary .background-text {
    -webkit-text-stroke: 2px rgba(5, 167, 190, 0.12);
    text-stroke: 2px rgba(5, 167, 190, 0.12);
}

.feature-fullscreen-secondary .background-text {
    -webkit-text-stroke: 2px rgba(30, 215, 205, 0.12);
    text-stroke: 2px rgba(30, 215, 205, 0.12);
}

.feature-fullscreen-accent .background-text {
    -webkit-text-stroke: 2px rgba(255, 119, 34, 0.12);
    text-stroke: 2px rgba(255, 119, 34, 0.12);
}

.feature-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-fullscreen .feature-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-duration);
}

.feature-fullscreen .feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-fullscreen-primary .feature-icon {
    color: var(--primary-color);
}

.feature-fullscreen-secondary .feature-icon {
    color: var(--secondary-color);
}

.feature-fullscreen-accent .feature-icon {
    color: var(--accent-color);
}

.feature-fullscreen .feature-icon:hover {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.feature-fullscreen-primary .feature-title {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-fullscreen-secondary .feature-title {
    color: var(--secondary-color);
}

.feature-fullscreen-accent .feature-title {
    color: var(--accent-color);
}

.feature-description {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    line-height: 1.8;
    color: var(--text-color);
}

.features-info-section {
    padding: 80px 0 100px;
    background: var(--background-color);
}

/* 旧スタイル（削除予定または使用していない場合コメントアウト） */
.how-to-use {
    padding: 100px 0;
    background: var(--background-color);
}

.how-to-use .section-title {
    text-align: center;
    margin-bottom: 4rem;
}

/* 3ステップのスタイルは既存の.steps-flow等を流用 */

.impact-number {
    text-align: center;
    padding: 4rem 0;
    max-width: 1400px;
    width: calc(100% + 200px);
    margin-left: -100px;
    margin-right: -100px;
    padding-left: 8%;
    padding-right: 8%;
}

.number-display {
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 900;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.currency, .unit {
    font-size: 0.5em;
    opacity: 0.8;
}

.number-description-container {
    max-width: 1400px;
    margin: 2rem auto 0;
    text-align: center;
}

.number-description {
    font-size: 1.2rem;
    color: var(--text-light-color);
    margin: 0;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.number-description-detail {
    font-size: 0.6rem;
    color: var(--text-light-color);
    margin: 1rem 0 0;
    opacity: 0.8;
    line-height: 1.6;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* 要件定義とは？セクション */
.requirements-definition-info {
    max-width: 900px;
    margin: 3rem auto 0;
}

/* AIエージェントとは？セクション */
.ai-agent-info {
    max-width: 900px;
    margin: 2rem auto;
}

.alcedo-meaning-info {
    max-width: 900px;
    margin: 2rem auto;
}

.info-details {
    background: var(--card-background);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    overflow: hidden;
    transition: all var(--transition-duration);
}

.info-details[open] {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(5, 167, 190, 0.15);
}

.info-header {
    display: flex;
    align-items: center;
    padding: 1.5rem 2rem;
    cursor: pointer;
    background: var(--background-color);
    transition: all var(--transition-duration);
    list-style: none;
}

.info-header::-webkit-details-marker {
    display: none;
}

.info-header:hover {
    background: var(--primary-light-color);
}

.info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 3.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
}

.alcedo-icon {
    width: 2.8rem;
    height: 2.8rem;
    vertical-align: middle;
    margin-right: 1.0rem;
    flex-shrink: 0;
}

.info-header h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    flex-grow: 1;
}

.toggle-arrow {
    font-size: 0.9rem;
    color: var(--primary-color);
    transition: transform var(--transition-duration);
    flex-shrink: 0;
}

.info-details[open] .toggle-arrow {
    transform: rotate(180deg);
}

.info-detail {
    padding: 2rem;
    margin: 0;
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-color);
    background: white;
    border-top: 1px solid var(--light-border-color);
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
    margin-bottom: 4rem;
}

/* Why Fails Section */
.why-fails {
    padding: 100px 0;
    background: linear-gradient(180deg, white 0%, var(--background-color) 100%);
    position: relative;
}

.why-fails::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    right: 0;
    height: 100px;
    background: white;
    transform: skewY(-2deg);
}

.why-fails .section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
}

.reason-card {
    background: linear-gradient(135deg, rgba(5, 167, 190, 0.08) 0%, rgba(30, 215, 205, 0.12) 100%);
    border: 4px solid var(--primary-color);
    position: relative;
    border-radius: 24px;
    padding: 3.5rem 3rem;
    margin: 0 auto 3rem;
    max-width: 1100px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(5, 167, 190, 0.2);
    transition: all var(--transition-duration);
    overflow: hidden;
}

.reason-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(5, 167, 190, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(30, 215, 205, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.reason-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 70px rgba(5, 167, 190, 0.3);
    border-color: var(--secondary-color);
}

.reason-main {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 900;
    color: var(--text-dark-color);
    line-height: 1.5;
    margin: 0;
    position: relative;
    z-index: 1;
}

.reason-description {
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.reason-description p {
    font-size: 1.2rem;
    line-height: 2;
    color: var(--text-light-color);
    margin: 0;
}

.solution {
    padding: 100px 0 100px;
    background: linear-gradient(180deg,
        white 0%,
        white 70%,
        var(--background-color) 100%
    );
}

.solution-header {
    text-align: center;
    margin-bottom: 4rem;
}

.solution-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    margin-bottom: 1rem;
    color: var(--text-dark-color);
}

.solution-title .title-small {
    font-size: 0.75em;
    display: inline;
}

.solution-title .title-large {
    font-size: 1em;
    display: inline;
}

.solution-subtitle {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 3rem;
    line-height: 1.6;
}

.before-after {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 6rem;
}

.before-card, .after-card {
    padding: 2rem;
    border-radius: 20px;
}

.before-card {
    background: var(--dark-background);
    color: white;
}

.after-card {
    background: var(--gradient-primary);
    color: white;
}

.before-card h3, .after-card h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.ba-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ba-label {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.ba-desc {
    opacity: 0.9;
    text-align: left;
    line-height: 1.7;
    font-size: 0.95rem;
}

.solution-steps-section {
    margin-top: 6rem;
    background: linear-gradient(180deg,
        var(--background-color) 0%,
        white 80%,
        var(--primary-light-color) 100%
    );
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    padding-left: calc(50vw - 50%);
    padding-right: calc(50vw - 50%);
    padding-bottom: 4rem;
}

.solution-steps {
    margin-top: 0;
    margin-bottom: 0;
    padding: 4rem 0 2rem;
}

.solution-steps h3 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark-color);
}

.steps-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 200px;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
}

.step-number {
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 1rem;
    font-weight: 700;
}

.step-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-dark-color);
}

.step-card p {
    color: var(--text-light-color);
    margin-bottom: 1rem;
}

.step-time {
    color: var(--primary-color);
    font-weight: 600;
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    margin: 0 1rem;
}

/* 特徴セクション用の縦並びレイアウト */
.features-vertical {
    flex-direction: column;
    align-items: stretch;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.features-vertical .step-card {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.features-vertical .step-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

/* 特徴カードの左ボーダー（色分け） */
.feature-primary {
    border-left: 8px solid var(--primary-color);
}

.feature-secondary {
    border-left: 8px solid var(--secondary-color);
}

.feature-accent {
    border-left: 8px solid var(--accent-color);
}

/* 特徴アイコン */
.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.feature-primary .feature-icon {
    color: var(--primary-color);
}

.feature-secondary .feature-icon {
    color: var(--secondary-color);
}

.feature-accent .feature-icon {
    color: var(--accent-color);
}

.features-vertical .step-card:hover .feature-icon {
    transform: scale(1.1);
}

.solution-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--gradient-primary);
    color: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.stat-desc {
    font-size: 1rem;
    opacity: 0.95;
}

.innovations {
    padding: 0 0 50px;
}

.innovation-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.innovation-section::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    right: 0;
    height: 100px;
    background: inherit;
    transform: skewY(-3deg);
}

.innovation-ai {
    background: var(--primary-light-color);
}

.innovation-realtime {
    background: var(--secondary-light-color);
}

.innovation-knowledge {
    background: var(--accent-light-color);
}

.innovation-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.innovation-icon {
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding: 1rem;
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    display: inline-block;
}

.innovation-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    color: var(--text-dark-color);
}

.innovation-catch {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.innovation-desc {
    font-size: 1.1rem;
    color: var(--text-light-color);
    margin-bottom: 2rem;
}

.innovation-stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light-color);
}

.chat-animation {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-bubble-animated {
    padding: 1rem 1.5rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    animation: slideInRight 1s ease-out backwards;
}

.chat-bubble-animated:nth-child(2) {
    animation-delay: 0.3s;
}

.chat-bubble-animated:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.validation-demo {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.validation-item {
    padding: 1rem 1.5rem;
    background: white;
    border-radius: 10px;
    font-weight: 600;
    animation: fadeInScale 0.5s ease-out backwards;
}

.validation-item.success {
    border-left: 4px solid #4CAF50;
    color: #4CAF50;
}

.validation-item.warning {
    border-left: 4px solid #FF9800;
    color: #FF9800;
}

.validation-item:nth-child(2) {
    animation-delay: 0.2s;
}

.validation-item:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.knowledge-graph {
    position: relative;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.knowledge-loop {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 150px);
    grid-template-rows: repeat(2, 120px);
    gap: 2rem;
    width: 100%;
    max-width: 550px;
    height: 300px;
    margin: 0 auto;
    justify-content: center;
    align-content: center;
}

.loop-item {
    background: white;
    border-radius: 15px;
    padding: 1.2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
    width: 150px;
    height: 120px;
}

.loop-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.loop-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.loop-label {
    font-weight: 600;
    font-size: 0.9rem;
    text-align: center;
    color: var(--text-dark-color);
}

.loop-project1 {
    grid-column: 1;
    grid-row: 1;
}

.loop-extract {
    grid-column: 2;
    grid-row: 1;
    background: var(--primary-light-color);
}

.loop-knowledge {
    grid-column: 3;
    grid-row: 1;
    background: var(--gradient-primary);
    color: white;
}

.loop-knowledge .loop-label {
    color: white;
}

.loop-project2 {
    grid-column: 3;
    grid-row: 2;
}

.loop-apply {
    grid-column: 2;
    grid-row: 2;
    background: var(--secondary-light-color);
}

.loop-learn {
    grid-column: 1;
    grid-row: 2;
    background: var(--gradient-primary);
}

.loop-learn .loop-label {
    color: white;
}


.loop-arrow {
    position: absolute;
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: bold;
    animation: pulse-arrow 2s ease-in-out infinite;
    z-index: 1;
}

.arrow-1 {
    top: calc(25% - 1rem);
    left: calc(33.33% - 1rem);
    transform: translateX(-50%);
}

.arrow-2 {
    top: calc(25% - 1rem);
    left: calc(66.66% - 1rem);
    transform: translateX(-50%);
}

.arrow-3 {
    top: 50%;
    right: 25px;
    transform: translateY(-50%) rotate(90deg);
}

.arrow-4 {
    bottom: calc(25% - 1rem);
    right: calc(33.33% - 1rem);
    transform: translateX(50%) rotate(180deg);
}

.arrow-5 {
    bottom: calc(25% - 1rem);
    left: calc(33.33% - 1rem);
    transform: translateX(-50%) rotate(180deg);
}

.arrow-6 {
    top: 50%;
    left: 25px;
    transform: translateY(-50%) rotate(-90deg);
}

.loop-connection {
    position: absolute;
    width: 2px;
    height: 60%;
    background: var(--primary-color);
    left: 25px;
    top: 20%;
    opacity: 0.3;
    display: none;
}

@keyframes pulse-arrow {
    0%, 100% {
        opacity: 0.5;
        transform: translateY(-50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translateY(-50%) scale(1.2);
    }
}

.node {
    position: absolute;
    padding: 1rem;
    background: white;
    border-radius: 50%;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    font-weight: 600;
    animation: float-node 3s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    text-align: center;
}

.node-center {
    top: 40%;
    left: 38%;
    transform: translate(-50%, -50%);
    background: var(--gradient-primary);
    color: white;
    z-index: 2;
}

.node-1 { top: 10%; left: 10%; animation-delay: 0.5s; }
.node-2 { top: 10%; right: 10%; animation-delay: 1s; }
.node-3 { bottom: 10%; left: 10%; animation-delay: 1.5s; }
.node-4 { bottom: 10%; right: 10%; animation-delay: 2s; }

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

.demo {
    padding: 100px 0;
    background: var(--background-color);
}

.demo-container {
    max-width: 800px;
    margin: 0 auto 3rem;
}

.demo-screen {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow-large);
    min-height: 400px;
}

.demo-step {
    display: none;
}

.demo-step.active {
    display: block;
    animation: fadeIn 0.5s ease-out;
}

.demo-step h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-dark-color);
}

.demo-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.demo-option {
    padding: 1.5rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-duration);
}

.demo-option:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.demo-chat {
    padding: 2rem;
    background: var(--background-color);
    border-radius: 15px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.typing-animation {
    font-size: 1.2rem;
    color: var(--primary-color);
    animation: pulse 1.5s infinite;
}

.demo-requirements {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.req-item {
    padding: 1rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 10px;
    animation: slideIn 0.5s ease-out;
}

.demo-result {
    text-align: center;
}

.check-mark {
    font-size: 5rem;
    color: #4CAF50;
    animation: scaleIn 0.5s ease-out;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.roi-calculator {
    padding: 100px 0;
    background: white;
}

.calculator-container {
    background: var(--background-color);
    border-radius: 20px;
    padding: 3rem;
    margin-bottom: 3rem;
}

.calculator-inputs {
    margin-bottom: 3rem;
}

.input-group {
    margin-bottom: 2rem;
}

.input-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark-color);
}

.slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
}

/* ターゲット切り替えスタイル */
.target-switch {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ヘッダー内バージョン */
.target-switch--nav {
    position: static;
    transform: none;
    background: transparent;
    backdrop-filter: none;
    padding: 0;
    box-shadow: none;
    gap: 0.5rem;
}

.target-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    background: white;
    color: var(--text-color);
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all var(--transition-duration);
}

.target-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.target-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

/* ナビ内配置のレイアウト微調整 */
.nav-target {
    display: flex;
    align-items: center;
}

@media (max-width: 768px) {
    .target-switch--nav {
        width: 100%;
        justify-content: flex-start;
        gap: 0.75rem;
        margin-bottom: 0.5rem;
    }
    .target-btn {
        padding: 0.6rem 1rem;
        font-size: 1rem;
    }
}

/* 課題タブスタイル */
.challenges-tabs {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 0.75rem 2rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-light-color);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-duration);
}

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

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

/* ベネフィットセクションスタイル */
.target-benefits {
    padding: 5rem 0;
    background: var(--background-color);
}

.benefit-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark-color);
    text-align: center;
    margin-bottom: 3rem;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.benefit-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-large);
    text-align: center;
    transition: transform var(--transition-duration);
}

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

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 1rem;
}

.benefit-card p {
    color: var(--text-light-color);
    line-height: 1.6;
}

/* 料金プラン切り替えスタイル */
.plan-toggle {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.plan-btn {
    padding: 0.75rem 2rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-color);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-duration);
}

.plan-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.plan-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.pricing-cards.vendor-plans {
    display: none;
}

.pricing-cards.vendor-plans.active {
    display: flex;
}

.slider-value {
    display: inline-block;
    margin-left: 1rem;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.calculate-btn {
    display: block;
    margin: 2rem auto;
    padding: 1rem 3rem;
    background: var(--gradient-accent);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-duration);
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 119, 34, 0.3);
}

.calculator-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.result-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.result-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-light-color);
}

.result-value {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
}

.result-label {
    font-size: 1rem;
    color: var(--text-light-color);
}

.implementation {
    padding: 100px 0;
    background: var(--background-color);
}

.pattern-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.pattern-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-duration);
}

.pattern-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
}

.pattern-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark-color);
}

.pattern-feature {
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    display: inline-block;
    margin-bottom: 1rem;
    font-weight: 700;
}

.pattern-card p {
    color: var(--text-light-color);
    margin-bottom: 0.5rem;
}

.pricing {
    padding: 100px 0;
    background: white;
}

.poc-description {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 2rem auto;
    max-width: 800px;
}

.poc-notice {
    background: linear-gradient(135deg, #E0F5F8 0%, #E6FAF9 100%);
    border-left: 5px solid var(--primary-color);
    border-radius: 15px;
    padding: 1.5rem 2rem;
    margin: 2rem auto 3rem;
    max-width: 800px;
    box-shadow: 0 10px 30px rgba(5, 167, 190, 0.1);
    text-align: center;
}

.notice-text {
    font-size: 1.1rem;
    color: var(--text-dark-color);
    margin: 0;
    line-height: 1.8;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: all var(--transition-duration);
}

.pricing-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.pricing-card.featured {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-large);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-accent);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-weight: 700;
}

.pricing-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-dark-color);
}

.price {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.price span {
    font-size: 1rem;
    color: var(--text-light-color);
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.5rem 0;
    color: var(--text-light-color);
}

.security {
    padding: 80px 0;
    background: var(--background-color);
}

.security-badges {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.security-badge {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all var(--transition-duration);
}

.security-badge:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.badge-icon {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    color: var(--primary-color);
    background: var(--primary-light-color);
    padding: 1rem;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.security-badge h4 {
    font-size: 1.2rem;
    color: var(--text-dark-color);
}

/* フローティングターゲット切り替えトグル */
.floating-target-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    animation: slideInUp 0.5s ease-out;
}

.toggle-container {
    background: white;
    border-radius: 50px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
    padding: 4px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.toggle-track {
    width: 180px;
    height: 50px;
    background: var(--light-border-color);
    border-radius: 25px;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.toggle-slider {
    position: absolute;
    width: 90px;
    height: 42px;
    background: var(--gradient-primary);
    border-radius: 21px;
    top: 4px;
    left: 4px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(5, 167, 190, 0.3);
}

.toggle-slider.vendor {
    transform: translateX(82px);
    background: var(--gradient-accent);
}

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

.toggle-labels {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    pointer-events: none;
}

.toggle-label {
    font-weight: 600;
    font-size: 0.9rem;
    transition: opacity 0.3s;
    color: var(--text-color);
}

.toggle-label-client {
    opacity: 0;
}

.toggle-label-vendor {
    opacity: 1;
}

.toggle-slider.vendor ~ .toggle-labels .toggle-label-client {
    opacity: 1;
}

.toggle-slider.vendor ~ .toggle-labels .toggle-label-vendor {
    opacity: 0;
}

.toggle-description {
    font-size: 0.8rem;
    color: var(--text-light-color);
    font-weight: 600;
    white-space: nowrap;
}

/* アニメーション */
@keyframes slideInUp {
    from {
        transform: translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ホバーエフェクト */
.floating-target-toggle:hover .toggle-container {
    transform: translateY(-2px);
    box-shadow: 0 6px 40px rgba(0, 0, 0, 0.2);
}

/* モバイル対応（フローティングトグル） */
@media (max-width: 768px) {
    .floating-target-toggle {
        bottom: 20px;
        right: 20px;
    }
    
    .toggle-container {
        width: 100%;
        justify-content: center;
    }    
}

.faq {
    padding: 100px 0;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    background: var(--background-color);
    border-radius: 10px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: transparent;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-duration);
}

.faq-question:hover {
    background: var(--hover-color);
}

.faq-icon {
    font-size: 1.5rem;
    transition: transform var(--transition-duration);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-duration);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light-color);
}

.footer-cta {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.footer-cta-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,96C1248,75,1344,53,1392,42.7L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.2;
}

.footer-cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 1rem;
}

.footer-cta-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.footer {
    padding: 50px 0 20px;
    background: var(--dark-background);
    color: white;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-duration);
}

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

.company-info {
    opacity: 0.7;
    margin-top: 0.5rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.mission {
    margin-top: 1rem;
    font-size: 1.1rem;
    opacity: 0.9;
}

/* インタラクティブデモセクション */
.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light-color);
    margin-bottom: 3rem;
}

.alcedo-demo-container {
    max-width: 1000px;
    margin: 0 auto 3rem;
    background: linear-gradient(135deg, var(--card-background), var(--primary-light-color));
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-large);
    position: relative;
}

.alcedo-demo-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
}

.alcedo-demo-dots {
    display: flex;
    gap: 0.5rem;
}

.alcedo-demo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ddd;
}

.alcedo-demo-dot:nth-child(1) { background: #FF5F56; }
.alcedo-demo-dot:nth-child(2) { background: #FFBD2E; }
.alcedo-demo-dot:nth-child(3) { background: #27C93F; }

.alcedo-demo-title {
    color: var(--text-light-color);
    font-weight: 600;
    font-size: 0.875rem;
}

.alcedo-demo-replay {
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-duration);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alcedo-demo-replay:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.demo-play-icon {
    font-size: 0.8rem;
}

.alcedo-demo-body {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    min-height: 450px;
}

.alcedo-demo-chat {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: var(--background-color);
    overflow-y: auto;
    max-height: 450px;
}

.demo-welcome {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-light-color);
}

.demo-welcome h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark-color);
}

.alcedo-demo-msg {
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    max-width: 80%;
    font-size: 0.875rem;
    line-height: 1.5;
    opacity: 0;
    transform: translateY(10px);
    animation: messageFadeIn 0.5s forwards;
}

@keyframes messageFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alcedo-demo-msg.bot {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    align-self: flex-start;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.alcedo-demo-msg.user {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover-color));
    color: white;
    align-self: flex-end;
    box-shadow: 0 4px 12px rgba(5, 167, 190, 0.2);
}

.alcedo-demo-msg.accent {
    background: linear-gradient(135deg, rgba(5, 167, 190, 0.08), rgba(5, 167, 190, 0.04));
    border: 2px dashed var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
}

.alcedo-demo-msg.typing {
    display: flex;
    align-items: center;
    padding: 1rem;
}

.typing-dots {
    display: flex;
    gap: 0.3rem;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typingAnimation 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingAnimation {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

.alcedo-demo-panel {
    padding: 1.5rem;
    background: var(--card-background);
    border-left: 1px solid var(--border-color);
}

.alcedo-demo-panel h4 {
    margin: 0 0 1.25rem;
    font-size: 1rem;
    color: var(--text-light-color);
    font-weight: 600;
}

.alcedo-demo-output {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.alcedo-demo-output-item {
    padding: 0.75rem;
    background: var(--background-color);
    border-radius: 0.75rem;
    font-size: 0.8125rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid var(--border-color);
    transition: all var(--transition-duration);
}

.alcedo-demo-output-item.inactive {
    opacity: 0.4;
}

.alcedo-demo-output-item.active {
    background: var(--primary-light-color);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.alcedo-demo-output-item.completed {
    background: linear-gradient(135deg, #4CAF50, #45B747);
    color: white;
    border-color: #4CAF50;
}

.alcedo-demo-output-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.demo-progress {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.progress-label {
    font-size: 0.875rem;
    color: var(--text-light-color);
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 600;
}

.alcedo-demo-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--background-color);
    border-top: 1px solid var(--border-color);
}

.demo-controls {
    display: flex;
    gap: 0.5rem;
}

.demo-control-btn {
    padding: 0.375rem 0.75rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-duration);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.demo-control-btn:hover {
    background: var(--hover-color);
    border-color: var(--primary-color);
}

.demo-status {
    font-size: 0.875rem;
    color: var(--text-light-color);
    font-style: italic;
}

.demo-status.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* 問い合わせフォーム */
.contact-form {
    padding: 100px 0;
    background: var(--background-color);
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.contact-form-inner {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-large);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.form-message {
    margin: 0 0 1.5rem;
    font-weight: 600;
    color: var(--text-light-color);
    min-height: 1.25rem;
    transition: color var(--transition-duration);
}

.form-message.success {
    color: var(--primary-color);
}

.form-message.error {
    color: var(--accent-color);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-dark-color);
    margin-bottom: 0.5rem;
}

.required {
    color: var(--accent-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all var(--transition-duration);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(5, 167, 190, 0.1);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
}

.form-submit {
    text-align: center;
    margin-top: 2rem;
}

/* フッターロゴ */
.footer-company {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer-logo {
    height: 30px;
    width: auto;
}

/* モバイルメニュー */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all var(--transition-duration);
}

.mobile-menu-toggle.active .hamburger:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

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

/* レスポンシブデザイン */
@media (max-width: 768px) {
    /* ナビゲーション */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s ease;
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 0.5rem 0;
    }

    .nav-menu a {
        display: block;
        padding: 0.75rem 1rem;
        font-size: 1.1rem;
    }
    
    /* ヒーローセクション */
    .hero {
        padding: 80px 0 50px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-tags {
        justify-content: center;
    }

    .hero-visual {
        margin-top: 2rem;
        order: 2;
    }

    .hero-image {
        max-width: 100%;
        height: auto;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cta-group {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-cta-group .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* セクションタイトル */
    .section-title {
        font-size: 2rem;
    }

    .challenges .section-title {
        width: 100%;
        margin-left: 0;
        margin-right: 0;
        padding-left: 5%;
        padding-right: 5%;
    }

    /* number-description */
    .number-description {
        font-size: 1rem;
        line-height: 1.8;
    }

    .number-description-detail {
        font-size: 0.7rem;
    }

    /* impact-numberの幅を修正 */
    .impact-number {
        width: 100%;
        margin-left: 0;
        margin-right: 0;
        padding-left: 5%;
        padding-right: 5%;
    }

    /* スマホでは<br>を無視して自然な折り返しにする */
    .number-description br,
    .number-description-detail br {
        display: none;
    }

    /* 課題サマリー */
    .challenges-summary {
        margin-top: 2rem;
        padding: 1.5rem;
    }

    .challenges-summary p {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    /* Alcedo Capabilities（メインセクション） */
    .alcedo-capabilities {
        padding: 80px 0;
    }

    .capabilities-main-title {
        margin-bottom: 3rem;
    }

    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .capability-card:nth-child(3) {
        max-width: 100%;
    }

    .capability-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 0.8rem;
    }

    .capability-card {
        min-height: auto;
        padding: 2.5rem 2rem;
    }

    .capability-card .card-title {
        font-size: 1.5rem;
    }

    .capability-card .card-catch {
        font-size: 1.2rem;
    }

    .capability-card .card-description {
        font-size: 1rem;
    }

    /* 課題カード */
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    /* ソリューション */
    .before-after {
        grid-template-columns: 1fr;
    }
    
    .steps-flow {
        flex-direction: column;
    }

    .step-card {
        flex: none;
        width: 100%;
        min-width: auto;
    }

    .step-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .solution-stats {
        grid-template-columns: 1fr;
    }
    
    /* イノベーション */
    .innovation-section .container {
        grid-template-columns: 1fr;
    }
    
    /* デモ */
    .alcedo-demo-body {
        grid-template-columns: 1fr;
    }
    
    .alcedo-demo-panel {
        border-left: none;
        border-top: 1px solid var(--border-color);
    }
    
    /* ROI計算機 */
    .calculator-results {
        grid-template-columns: 1fr;
    }
    
    /* 導入パターン */
    .pattern-cards {
        grid-template-columns: 1fr;
    }
    
    /* 料金プラン */
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    /* フォーム */
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-inner {
        padding: 2rem;
    }
    
    /* フッター */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-company {
        flex-direction: column;
    }
    
    /* ボタン */
    .btn {
        padding: 0.7rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }
    
    /* 余白調整 */
    section {
        padding: 60px 0;
    }

    .container {
        padding: 0 15px;
    }

    /* フルスクリーン特徴セクション */
    .features-title-section {
        padding: 60px 0 30px;
    }

    .feature-fullscreen {
        min-height: 80vh;
        padding: 60px 0;
    }

    .background-text {
        font-size: clamp(5rem, 15vw, 8rem);
    }

    .feature-content {
        padding: 2rem 1rem;
    }

    .feature-fullscreen .feature-icon {
        width: 80px;
        height: 80px;
        margin: 0 auto 1.5rem;
    }

    .feature-title {
        font-size: clamp(1.5rem, 4vw, 2.5rem);
        margin-bottom: 1rem;
    }

    .feature-description {
        font-size: clamp(1rem, 2vw, 1.2rem);
    }

    .features-info-section {
        padding: 60px 0;
    }

    /* 特徴セクションのレスポンシブ対応 */
    .feature-card {
        padding: 1.2rem 0 1.2rem 1.2rem;
    }

    .feature-card::before {
        font-size: 1.3rem;
        top: 1.2rem;
    }

    .feature-card-title {
        font-size: 1.1rem;
        line-height: 1.6;
    }
}

@media (max-width: 480px) {
    /* より小さい画面用の調整 */
    .hero-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .challenges .section-title {
        padding-left: 0;
        padding-right: 0;
    }

    /* 課題セクションのレスポンシブ対応 */
    .challenge-description {
        font-size: 1.1rem;
        line-height: 1.6;
    }

    .challenge-card {
        padding: 1rem 0 1rem 1.2rem;
    }

    .challenge-card::before {
        font-size: 1.3rem;
        top: 1rem;
    }

    /* number-description */
    .number-description {
        font-size: 0.9rem;
    }

    .number-description-detail {
        font-size: 0.65rem;
    }

    /* knowledge-loop - シンプルな縦並び */
    .knowledge-loop {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        max-width: 180px;
        height: auto;
    }

    .loop-item {
        width: 100%;
        height: auto;
        min-height: 70px;
        padding: 0.8rem;
    }

    .loop-icon {
        font-size: 1.5rem;
    }

    .loop-label {
        font-size: 0.8rem;
    }

    /* 矢印を非表示 */
    .loop-arrow {
        display: none;
    }

    .impact-number {
        padding-left: 15px;
        padding-right: 15px;
    }

    .hero-lead {
        font-size: 0.9rem;
    }

    .impact-number .amount {
        font-size: 6rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .companies-title {
        font-size: 1.5rem;
    }

    .carousel-track {
        animation-duration: 40s;
    }

    /* フルスクリーン特徴セクション（480px以下） */
    .feature-fullscreen {
        min-height: auto;
        padding: 40px 0;
    }

    .background-text {
        font-size: clamp(4rem, 12vw, 6rem);
        -webkit-text-stroke: 1.5px rgba(0, 0, 0, 0.12);
        text-stroke: 1.5px rgba(0, 0, 0, 0.12);
    }

    .feature-fullscreen-primary .background-text {
        -webkit-text-stroke: 1.5px rgba(5, 167, 190, 0.12);
        text-stroke: 1.5px rgba(5, 167, 190, 0.12);
    }

    .feature-fullscreen-secondary .background-text {
        -webkit-text-stroke: 1.5px rgba(30, 215, 205, 0.12);
        text-stroke: 1.5px rgba(30, 215, 205, 0.12);
    }

    .feature-fullscreen-accent .background-text {
        -webkit-text-stroke: 1.5px rgba(255, 119, 34, 0.12);
        text-stroke: 1.5px rgba(255, 119, 34, 0.12);
    }

    .feature-content {
        padding: 1.5rem 1rem;
    }

    .feature-fullscreen .feature-icon {
        width: 60px;
        height: 60px;
        margin: 0 auto 1rem;
    }

    .feature-title {
        font-size: clamp(1.3rem, 3.5vw, 2rem);
    }

    .feature-description {
        font-size: clamp(0.95rem, 1.8vw, 1.1rem);
        line-height: 1.6;
    }

    .features-info-section {
        padding: 40px 0 60px;
    }
}

/* ======================
   NEW SECTIONS STYLES
   ====================== */

/* Service Flow Section */
.service-flow {
    padding: 100px 0;
    background-color: var(--background-color);
}

.service-flow .section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light-color);
    margin-bottom: 4rem;
}

.steps-flow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    margin: 0 auto 4rem;
    max-width: 1400px;
}

.step-card {
    flex: 1;
    background: white;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-duration);
    position: relative;
    border-left: 6px solid var(--primary-color);
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.step-number {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
    opacity: 0.7;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    color: var(--primary-color);
}

.step-icon svg {
    width: 100%;
    height: 100%;
}

.step-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 1rem;
    text-align: center;
    line-height: 1.4;
}

.step-description {
    font-size: 1rem;
    color: var(--text-light-color);
    text-align: center;
    line-height: 1.6;
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: 700;
    flex-shrink: 0;
}

/* Features Section (New 3 cards layout) */
.features {
    padding: 70px 0;
    background: white;
}

.features .section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light-color);
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: transparent;
    padding: 1.5rem 0 1.5rem 1.5rem;
    border-radius: 0;
    box-shadow: none;
    transition: none;
    overflow: visible;
    position: relative;
    border: none;
    border-bottom: 1px solid var(--primary-color);
}

/* 最後の項目もボーダーあり（削除） */

/* 箇条書き風のチェックマーク */
.feature-card::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 1.5rem;
    font-size: 1.5rem;
    color: var(--primary-color);
    line-height: 1.7;
}

.feature-card:hover {
    /* ホバーエフェクト削除 */
}

.feature-icon-large {
    display: none;
}

.feature-card-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-color);
    margin: 0;
    text-align: left;
    line-height: 1.7;
}

.feature-card-description {
    font-size: 1.15rem;
    color: var(--text-color);
    line-height: 1.7;
    text-align: left;
}

/* Target Audience Section */
.target-audience {
    padding: 100px 0;
    background-color: var(--background-color);
}

.target-audience .section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light-color);
    margin-bottom: 4rem;
}

.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.target-card {
    background: white;
    border-radius: 20px;
    padding: 3rem 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-duration);
    border-left: 6px solid var(--secondary-color);
}

.target-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.target-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    color: var(--secondary-color);
}

.target-icon svg {
    width: 100%;
    height: 100%;
}

.target-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 1rem;
    text-align: center;
    line-height: 1.4;
}

.target-description {
    font-size: 1.05rem;
    color: var(--text-light-color);
    line-height: 1.8;
    text-align: center;
}

/* Challenge Card Title (New) */
.challenge-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-dark-color);
    margin-bottom: 0.75rem;
    text-align: left;
}

/* Responsive Design for New Sections */
@media (max-width: 768px) {
    .steps-flow {
        flex-direction: column;
        gap: 2rem;
    }

    .step-arrow {
        transform: rotate(90deg);
        font-size: 1.5rem;
    }

    .step-card,
    .feature-card,
    .target-card {
        padding: 2rem 1.5rem;
    }

    .step-title,
    .feature-card-title,
    .target-title {
        font-size: 1.2rem;
    }

    .step-description,
    .feature-card-description,
    .target-description {
        font-size: 0.95rem;
    }

    .features-grid,
    .target-grid {
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .service-flow,
    .features,
    .target-audience {
        padding: 60px 0;
    }

    .step-icon,
    .target-icon {
        width: 60px;
        height: 60px;
    }

    .feature-icon-large {
        font-size: 3rem;
    }

    .step-title,
    .feature-card-title,
    .target-title,
    .challenge-title {
        font-size: 1.1rem;
    }
}

/* ========================================
   2カラムレイアウト（画像付きセクション）
   ======================================== */

.section-with-image .section-layout-two-column {
    display: grid;
    grid-template-columns: 25% 75%;
    gap: 2.5rem;
    align-items: center;
    margin-top: 2.5rem;
}

/* 画像エリア */
.section-image {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.section-image .responsive-image {
    width: 100%;
    height: auto;
    max-width: 250px;
    border-radius: 10px;
    box-shadow: none;
    transition: none;
    object-fit: cover;
}

/* 課題セクションの画像スタイル */
.challenges-image .responsive-image {
    /* フィルター削除 */
}

.challenges-image .responsive-image:hover {
    /* ホバーエフェクト削除 */
}

/* 特徴セクションの画像スタイル */
.features-image .responsive-image {
    /* フィルター削除 */
    max-width: 250px;
}

.features-image .responsive-image:hover {
    /* ホバーエフェクト削除 */
}

/* 特徴セクション専用の2カラム比率 */
.features .section-layout-two-column {
    grid-template-columns: 75% 25%;
}

/* コンテンツエリア */
.section-content {
    width: 100%;
}

/* 課題セクションのグリッド調整 */
.challenges .section-content .challenges-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    grid-template-columns: 1fr;
}

/* 特徴セクションのグリッド調整 */
.features .section-content .features-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* ========================================
   レスポンシブ対応：768px以下
   ======================================== */

@media (max-width: 768px) {
    /* 2カラムを1カラムに変更 */
    .section-with-image .section-layout-two-column {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* 課題セクション：画像を上、カードを下 */
    .challenges .section-layout-two-column {
        grid-template-rows: auto 1fr;
    }

    .challenges .section-image {
        order: 1;
    }

    .challenges .section-content {
        order: 2;
    }

    /* 特徴セクション：カードを上、画像を下 */
    .features .section-layout-two-column {
        grid-template-rows: 1fr auto;
    }

    .features .section-content {
        order: 1;
    }

    .features .section-image {
        order: 2;
    }

    /* 画像サイズ調整 */
    .section-image {
        padding: 0;
    }

    .section-image .responsive-image {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .section-with-image .section-layout-two-column {
        gap: 1.5rem;
    }

    .section-image {
        padding: 0;
    }

    .section-image .responsive-image {
        border-radius: 8px;
    }
}