/* 基本スタイル */
body {
    /* オフライン対応: システムにインストールされているフォントを使用 */
    font-family: 
        'Noto Sans JP',
        'Hiragino Sans', 'ヒラギノ角ゴシック', 'Hiragino Kaku Gothic ProN', 'ヒラギノ角ゴ ProN W3',
        'Yu Gothic', '游ゴシック', 'Yu Gothic UI',
        'Meiryo', 'メイリオ',
        -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif,
        'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
    line-height: 1.6;
    color: #333;
    background-color: #f9fafb;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ロゴ（ガイド準拠） */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 0; /* 上下に少し余白 */
}

/* ロゴ画像 */
.logo-img {
    height: 40px;           /* PC */
    width: auto;
    display: block;
    filter: drop-shadow(0 1px 0.5px rgba(0,0,0,0.08));
}

/* 日本語表記 */
.logo-subtitle {
    font-size: 15px;        /* PC */
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin-left: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #4b5563;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #2563eb;
}

.cta-button {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    color: #fff !important;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
}

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

/* ヒーローセクション */
.hero {
    background: linear-gradient(135deg, #fff 0%, #f0f9ff 100%);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: linear-gradient(45deg, rgba(37, 99, 235, 0.05), rgba(30, 58, 138, 0.05));
    border-radius: 50%;
    z-index: 1;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: left;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: #1e3a8a;
    background: #e0f2fe;
    border: 1px solid #93c5fd;
    border-radius: 9999px;
    margin-bottom: 0.75rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #4b5563;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-stats {
    background-color: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    display: inline-block;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    animation: fadeInUp 1s ease 0.4s both;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stat-number {
    color: #4b5563;
}

.stat-number.highlight {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: #9ca3af;
}

.stat-description {
    margin-top: 0.5rem;
    color: #4b5563;
    font-size: 0.9rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 1s ease 0.6s both;
}

.btn {
    text-decoration: none;
    padding: 0.8rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    color: #fff;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8, #1e40af);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background-color: #fff;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn-secondary:hover {
    background-color: #2563eb;
    color: #fff;
}

.hero-visual {
    flex-shrink: 0;
    animation: fadeInRight 1s ease 0.8s both;
}

.flow-diagram {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: #fff;
    padding: 3rem 2rem;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border: 1px solid #e5e7eb;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    border-radius: 12px;
    background-color: #f8fafc;
    width: 100px;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.flow-step.ai-step {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    color: #fff;
    animation: glow 2s infinite alternate;
}

.flow-step i {
    font-size: 2rem;
    color: #4b5563;
}

.processing-icon {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: #fff;
}

.flow-arrow {
    font-size: 1.5rem;
    color: #9ca3af;
    animation: bounce 1s infinite alternate;
}

/* セクション共通 */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #4b5563;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    /* ロゴ（SP最適化） */
    .logo-img { height: 30px; }
    .logo-subtitle { font-size: 12px; letter-spacing: 0.01em; }
}

/* 課題セクション */
.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.problem-card {
    background-color: #fff;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border: 1px solid #e5e7eb;
    text-align: center;
    transition: all 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.problem-icon {
    font-size: 2.5rem;
    color: #ef4444;
    margin-bottom: 1rem;
}

.problem-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.problem-card p {
    color: #4b5563;
}

/* ソリューションセクション */
.solution {
    background-color: #fff;
    padding: 6rem 0;
}

.before-after {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.comparison-card {
    background-color: #f9fafb;
    border: 2px solid #e5e7eb;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    flex: 1;
    max-width: 380px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    text-align: center;
}

.comparison-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

.comparison-card h3 {
    font-size: 1.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    margin-top: 0;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.comparison-card.before h3 { color: #ef4444; }
.comparison-card.after h3 { color: #22c55e; }

.comparison-card.before {
    border-color: rgba(239, 68, 68, 0.2);
}

.comparison-card.after {
    border-color: rgba(34, 197, 94, 0.2);
}

.comparison-content {
    display: flex;
    flex-direction: column;
}

.time-indicator {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #e5e7eb;
    color: #1f2937;
}

.time-indicator.highlight {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.comparison-card ul {
    list-style: none;
    padding-left: 0;
    color: #4b5563;
    margin: 0;
    text-align: center;
}

.comparison-card ul li {
    margin-bottom: 0.8rem;
    padding: 0;
    position: relative;
    line-height: 1.6;
    font-size: 0.95rem;
}

.comparison-card ul li::before {
    content: '';
}

.vs-arrow {
    display: flex;
    align-items: center;
    font-size: 2.5rem;
    color: #2563eb;
    flex-shrink: 0;
    animation: bounce-horizontal 2s ease-in-out infinite;
}

/* 使い方セクション */
.how-it-works {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 6rem 0;
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.step-item {
    text-align: center;
    background: #fff;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    flex: 1;
    max-width: 320px;
    min-height: 420px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.step-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.15);
}

.step-badge {
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

.step-icon-circle {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    border: 3px solid rgba(37, 99, 235, 0.2);
}

.step-icon-circle i {
    font-size: 2.5rem;
    color: #1d4ed8;
}

.step-arrow {
    color: #2563eb;
    font-size: 2rem;
    flex-shrink: 0;
    animation: bounce-horizontal 2s ease-in-out infinite;
}

@keyframes bounce-horizontal {
    0%, 100% {
        transform: translateX(0);
        opacity: 0.6;
    }
    50% {
        transform: translateX(10px);
        opacity: 1;
    }
}

.step-item h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1f2937;
}

.step-item p {
    color: #4b5563;
    line-height: 1.7;
    font-size: 0.95rem;
    margin: 0;
    flex-grow: 1;
    display: flex;
    align-items: center;
}



/* 価値提案セクション */
.value-section {
    background: linear-gradient(135deg, #f8faff 0%, #f0f9ff 100%);
    padding: 5rem 0;
    position: relative;
}

.value-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.2), transparent);
}

/* 比較表示 */
.value-comparison {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 2rem;
    max-width: 950px;
    margin: 2.5rem auto;
}

.flow-panel {
    flex: 1;
    background: linear-gradient(135deg, #ffffff, #fafbff);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.8);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.flow-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, currentColor, transparent);
    opacity: 0.6;
}

.flow-panel.current-system::before {
    color: #ef4444;
}

.flow-panel.new-system::before {
    color: #10b981;
}

.flow-panel:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.15);
}

.flow-panel.current-system:hover {
    background: linear-gradient(135deg, #ffffff, #fff5f5);
}

.flow-panel.new-system:hover {
    background: linear-gradient(135deg, #ffffff, #f0fdf4);
}

.panel-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #4b5563;
    margin: 0 0 1.8rem 0;
    line-height: 1.6;
}

.panel-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.system-badge {
    font-size: 1.35rem;
    font-weight: 800;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    display: inline-block;
    position: relative;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.system-badge.current {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #dc2626;
    border: 2px solid rgba(220, 38, 38, 0.2);
}

.system-badge.new {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: #059669;
    border: 2px solid rgba(5, 150, 105, 0.2);
}

.flow-panel:hover .system-badge {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.system-description {
    font-size: 1rem;
    color: #4b5563;
    line-height: 1.7;
    margin: 0;
}

.system-description strong {
    display: block;
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 0.5rem;
}

/* 区切り線 */
.comparison-divider {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    flex-shrink: 0;
}

.divider-line {
    width: 2px;
    height: 50px;
    background: #d1d5db;
}

.plus-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
    position: relative;
    animation: pulse-plus 2s ease-in-out infinite;
}

.plus-icon::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    opacity: 0.2;
    animation: pulse-ring 2s ease-in-out infinite;
}

@keyframes pulse-plus {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes pulse-ring {
    0%, 100% {
        transform: scale(1);
        opacity: 0.2;
    }
    50% {
        transform: scale(1.15);
        opacity: 0;
    }
}

/* 結果表示 */
.value-result {
    max-width: 750px;
    margin: 1.5rem auto 0;
    text-align: center;
}

.result-arrow {
    font-size: 3rem;
    color: #2563eb;
    margin-bottom: 1.5rem;
    font-weight: 900;
    filter: drop-shadow(0 4px 8px rgba(37, 99, 235, 0.3));
    animation: pulse-arrow 2s ease-in-out infinite;
}

@keyframes pulse-arrow {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(8px);
    }
}

.result-text {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.12);
    position: relative;
    overflow: hidden;
}

.result-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #2563eb, transparent);
}

.result-text p {
    font-size: 1rem;
    color: #4b5563;
    line-height: 1.8;
    margin: 0;
}

.result-text strong {
    font-weight: 700;
}

.highlight-large {
    display: block;
    font-size: 1.15rem;
    font-weight: 700;
    color: #2563eb;
    margin-top: 0.5rem;
}

/* CTAセクション */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e3a8a, #1d4ed8);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    margin-top: 0;
}

.cta-actions {
    display: flex;
    justify-content: center;
}

.demo-login-card {
    display: inline-block;
    background: white;
    border-radius: 20px;
    padding: 40px 50px;
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.25);
    text-decoration: none;
    transition: all 0.4s ease;
    border: 2px solid rgba(37, 99, 235, 0.1);
    position: relative;
    overflow: hidden;
}

.demo-login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.08), transparent);
    transition: left 0.6s ease;
}

.demo-login-card:hover::before {
    left: 100%;
}

.demo-login-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 80px rgba(37, 99, 235, 0.35);
    border-color: rgba(37, 99, 235, 0.3);
}

.demo-logo {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e5e7eb;
}

.demo-logo-image {
    width: 140px;
    height: 140px;
    object-fit: contain;
}

.demo-logo-text {
    text-align: left;
}

.demo-logo-text h3 {
    margin: 0 0 5px 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

.demo-logo-text p {
    margin: 0;
    color: #6b7280;
    font-size: 0.9rem;
}

.demo-cta-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: #2563eb;
    font-weight: 600;
    font-size: 1.1rem;
}

.demo-arrow {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.demo-login-card:hover .demo-arrow {
    transform: translateX(5px);
}

/* フッター */
.footer {
    background: #1f2937;
    color: white;
    padding: 30px 0;
}

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

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 5px 0;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: #9ca3af;
    margin: 0;
}

.footer-info p {
    color: #9ca3af;
    margin: 0;
}

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(5px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes glow {
    from {
        box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
    }
    to {
        box-shadow: 0 0 30px rgba(37, 99, 235, 0.8);
    }
}

/* レスポンシブデザイン */
@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-content {
        order: 2;
    }
    .hero-visual {
        order: 1;
        margin-bottom: 3rem;
    }
    .hero-cta {
        justify-content: center;
    }
    
    .flow-diagram {
        flex-direction: column;
        gap: 1rem;
        padding: 2rem 1.5rem;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        margin: 0.5rem 0;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 1rem 0;
        text-align: center;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        display: block;
        margin-left: auto;
        margin-right: auto;
    }
    
    .stat-item {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }

    .before-after {
        flex-direction: column;
        align-items: center;
    }
    
    .comparison-card {
        width: 100%;
        max-width: 400px;
    }
    
    .vs-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .steps-container {
        flex-direction: column;
        gap: 2rem;
    }

    .step-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }

    .step-item {
        max-width: 100%;
    }

    .value-comparison {
        flex-direction: column;
        gap: 1.5rem;
    }

    .comparison-divider {
        flex-direction: row;
        gap: 1rem;
    }

    .divider-line {
        width: 50px;
        height: 2px;
        background: #d1d5db;
    }

    .plus-icon {
        width: 36px;
        height: 36px;
        font-size: 1.3rem;
    }

    .flow-panel {
        padding: 1.8rem 1.5rem;
    }

    .panel-header h3 {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

    .system-badge {
        font-size: 1.15rem;
        padding: 0.5rem 1.2rem;
    }

    .system-description {
        font-size: 0.95rem;
    }

    .system-description strong {
        font-size: 1.05rem;
    }

    .result-text {
        padding: 1.8rem 1.5rem;
    }

    .result-text p {
        font-size: 0.95rem;
    }

    .highlight-large {
        font-size: 1.05rem;
    }

    .result-arrow {
        font-size: 2.5rem;
    }

    .cta {
        padding: 60px 0;
    }

    .cta-content h2 {
        font-size: 1.75rem;
    }

    .demo-login-card {
        padding: 30px 25px;
        border-radius: 16px;
    }
    
    .demo-logo {
        flex-direction: column;
        text-align: center;
        gap: 15px;
        margin-bottom: 25px;
        padding-bottom: 25px;
    }

    .demo-logo-image {
        width: 90px;
        height: 90px;
        object-fit: contain;
    }

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

    .demo-logo-text h3 {
        font-size: 1.25rem;
    }

    .demo-logo-text p {
        font-size: 0.85rem;
    }

    .demo-cta-text {
        font-size: 1rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .hero-container {
        display: flex;
        flex-direction: column-reverse;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    section {
        padding: 3rem 0;
    }

    .cta {
        padding: 50px 0;
    }

    .cta-content h2 {
        font-size: 1.5rem;
    }

    .demo-login-card {
        padding: 25px 20px;
    }
}