/* ===== CSS Variables ===== */
:root {
    /* Colors - 統一使用藍色系,呼應 Paceriz logo */
    --primary-blue: #1890FF;
    --primary-blue-dark: #0066CC;
    --primary-blue-light: #40A9FF;
    --accent-blue: #69C0FF;
    --accent-blue-light: #BAE7FF;
    --accent-cyan: #13C2C2;

    /* Neutral Colors */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-800);
    background-color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

/* ===== Utility Classes ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .desktop-br {
        display: none;
    }
}

.gradient-text {
    color: var(--primary-blue);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-900);
}

.logo-icon {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--primary-blue);
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--gray-800);
    transition: all var(--transition-base);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 4px 15px rgba(24, 144, 255, 0.3);
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(24, 144, 255, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: 140px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary-blue-light);
    top: -100px;
    right: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-blue);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-cyan);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

/* Language-specific title adjustments */
html[lang="en"] .hero-title {
    font-size: 3.5rem;
}

html[lang="ja"] .hero-title {
    font-size: 3.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Hero Image */
.hero-image {
    max-width: 320px;
    margin: 0 auto;
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    perspective: 800px;
    width: 100%;
    max-width: 320px;
}

.phone-frame {
    background: linear-gradient(135deg, var(--gray-800), var(--gray-900));
    border-radius: 3rem;
    padding: 1rem;
    box-shadow:
        0 0 0 12px rgba(0, 0, 0, 0.1),
        0 30px 60px rgba(0, 0, 0, 0.3);
    transform: rotateY(-15deg) rotateX(5deg);
    transition: transform var(--transition-slow);
    animation: phoneFloat 6s ease-in-out infinite;
}

.phone-frame:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

@keyframes phoneFloat {
    0%, 100% {
        transform: rotateY(-15deg) rotateX(5deg) translateY(0);
    }
    50% {
        transform: rotateY(-15deg) rotateX(5deg) translateY(-20px);
    }
}

.phone-screen {
    background: #f5f5f5;
    border-radius: 2.5rem;
    overflow: hidden;
    aspect-ratio: 9 / 20;
    position: relative;
}

.app-preview {
    padding: var(--spacing-lg);
    background: #F0F4FF;
    height: 100%;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.preview-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.preview-badge {
    background: var(--primary-blue);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.preview-card {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    animation: slideIn 0.5s ease-out;
}

.preview-card.card-2 {
    animation-delay: 0.2s;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

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

.card-type {
    font-weight: 600;
    color: var(--gray-700);
}

.card-stats {
    display: flex;
    gap: var(--spacing-md);
}

.card-stats .stat {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.preview-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.metric {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.metric-label {
    font-size: 0.75rem;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
}

/* ===== Features Section ===== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(24, 144, 255, 0.12);
    border-color: rgba(24, 144, 255, 0.2);
}

.feature-icon {
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.8;
}

/* ===== How It Works Section ===== */
.how-it-works {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.steps {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
    position: relative;
}

/* 箭頭連接 */
.step::after {
    content: '→';
    position: absolute;
    right: calc(-1 * var(--spacing-2xl) / 2);
    top: 40%;
    transform: translate(50%, -50%);
    font-size: 2.5rem;
    color: var(--primary-blue);
    opacity: 0.25;
    font-weight: 300;
}

.step:last-child::after {
    display: none;
}

.step {
    position: relative;
    text-align: center;
    transition: all var(--transition-base);
}

.step:hover {
    transform: translateY(-8px);
}

.step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    box-shadow: 0 8px 20px rgba(24, 144, 255, 0.3);
}

.step-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.step-screenshot {
    margin-bottom: var(--spacing-md);
}

.phone-mockup-small {
    width: 100%;
    max-width: 260px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.06);
    background: white;
    transition: all var(--transition-base);
}

.step:hover .phone-mockup-small {
    box-shadow: 0 20px 40px rgba(24, 144, 255, 0.15);
}

.step-app-screenshot {
    width: 100%;
    height: auto;
    display: block;
}

.step-description {
    color: var(--gray-600);
    line-height: 1.8;
    font-size: 1rem;
    text-align: left;
    padding: 0 var(--spacing-md);
    max-width: 100%;
}

/* ===== Page Header ===== */
.page-header {
    padding: calc(var(--spacing-3xl) + 80px) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, #F0F4FF 0%, #E6F0FF 100%);
    text-align: center;
}

.page-title {
    font-size: 4rem;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.page-subtitle {
    font-size: 1.5rem;
    color: var(--gray-700);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

/* ===== Blog List Section ===== */
.blog-list {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

/* ===== About Hero Section ===== */
.about-hero {
    padding: calc(var(--spacing-3xl) + 80px) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, #F0F4FF 0%, #E6F0FF 100%);
    text-align: center;
}

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

.about-hero-title {
    font-size: 4rem;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.about-hero-subtitle {
    font-size: 1.5rem;
    color: var(--gray-700);
    line-height: 1.8;
}

/* ===== About Section ===== */
.about {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
}

.about-description {
    color: var(--gray-700);
    font-size: 1.125rem;
    line-height: 1.9;
}

.about-description p {
    margin-bottom: var(--spacing-md);
}

.about-description strong {
    color: var(--gray-900);
    font-weight: 700;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.about-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

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

.stat-text .stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-900);
    background: none;
    -webkit-text-fill-color: var(--gray-900);
}

.stat-text .stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.about-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    border: 2px solid var(--gray-200);
}

.quote-mark {
    font-size: 6rem;
    font-weight: 900;
    color: var(--primary-blue);
    opacity: 0.1;
    position: absolute;
    top: 0;
    left: var(--spacing-lg);
    line-height: 1;
}

.quote-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
    font-style: italic;
}

.quote-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.author-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
}

.author-title {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* ===== Download Section ===== */
.download {
    padding: var(--spacing-3xl) 0;
    background: #2767cf;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
}

.download-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.download-title {
    font-size: 3rem;
    font-weight: 900;
    color: white;
    margin-bottom: var(--spacing-md);
}

.download-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.download-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
}

.download-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.download-btn svg {
    width: 40px;
    height: 40px;
}

.btn-text {
    text-align: left;
}

.btn-label {
    font-size: 0.75rem;
    color: var(--gray-600);
    text-transform: uppercase;
}

.btn-store {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.download-note {
    color: white;
    font-size: 1.125rem;
    font-weight: 500;
}

/* ===== Footer ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--gray-800);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-tagline {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.footer-description {
    color: var(--gray-600);
    font-size: 0.875rem;
}

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

.footer-heading {
    color: white;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-list a {
    color: var(--gray-400);
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

.footer-list a:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    font-size: 0.875rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-image {
        max-width: 320px;
        margin: 0 auto;
    }

    .hero-title {
        font-size: 3rem;
    }

    html[lang="en"] .hero-title {
        font-size: 2.75rem;
    }

    html[lang="ja"] .hero-title {
        font-size: 2.75rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }

    .step::after {
        content: '↓';
        right: auto;
        left: 50%;
        top: auto;
        bottom: calc(-1 * var(--spacing-3xl) / 2);
        transform: translate(-50%, 50%);
    }

    .step-badge {
        width: 52px;
        height: 52px;
        font-size: 1.375rem;
    }

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

    .step-description {
        font-size: 0.875rem;
    }

    .phone-mockup-small {
        max-width: 280px;
    }

    .about-hero-title {
        font-size: 3rem;
    }

    .about-hero-subtitle {
        font-size: 1.25rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

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

    .hero {
        padding: 120px 0 60px;
    }

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

    html[lang="en"] .hero-title {
        font-size: 2.25rem;
    }

    html[lang="ja"] .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }

    .about-hero-title {
        font-size: 2.5rem;
    }

    .about-hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .step-badge {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }

    .step-title {
        font-size: 1.125rem;
    }

    .step-description {
        font-size: 0.8125rem;
    }

    .phone-mockup-small {
        max-width: 240px;
    }

    .download-title {
        font-size: 2rem;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-btn {
        width: 100%;
        max-width: 300px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .about-title {
        font-size: 2rem;
    }

    .about-description {
        font-size: 1rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .quote-text {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    html[lang="en"] .hero-title {
        font-size: 1.875rem;
    }

    html[lang="ja"] .hero-title {
        font-size: 1.875rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .step-number {
        font-size: 3rem;
    }

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

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Logo Image Styles ===== */
.logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
}

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

/* ===== App Screenshot Styles ===== */
.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    border-radius: 0;
}

/* ===== Testimonials Section ===== */
.testimonials {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.testimonials-carousel-wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonials-carousel {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    scroll-behavior: smooth;
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-blue) var(--gray-200);
}

.testimonials-carousel::-webkit-scrollbar {
    height: 8px;
}

.testimonials-carousel::-webkit-scrollbar-track {
    background: var(--gray-200);
    border-radius: 4px;
}

.testimonials-carousel::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 4px;
}

.testimonials-carousel::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue-dark);
}

.testimonial-card {
    background: var(--gray-50);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    min-width: 320px;
    max-width: 360px;
    flex-shrink: 0;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-lg);
    font-size: 4rem;
    line-height: 1;
    color: var(--primary-blue);
    opacity: 0.15;
    font-family: Georgia, serif;
    font-weight: 700;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(24, 144, 255, 0.08);
    border-color: rgba(24, 144, 255, 0.2);
}

.testimonial-rating {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.testimonial-text {
    color: var(--gray-800);
    line-height: 1.7;
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.testimonial-author .author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
    border: 2px solid var(--primary-blue);
}

.author-name {
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.author-meta {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: var(--spacing-xl);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-300);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0;
}

.carousel-dot.active {
    background: var(--primary-blue);
    width: 28px;
    border-radius: 5px;
}

.carousel-dot:hover {
    background: var(--primary-blue);
    opacity: 0.6;
}

.carousel-btn {
    display: none;
}

/* ===== Blog Section ===== */
.blog {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.blog-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.blog-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.blog-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-thumbnail {
    transform: scale(1.05);
}

.blog-category {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--primary-blue);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.blog-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.blog-excerpt {
    flex: 1;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--gray-500);
}

.blog-link {
    color: var(--primary-blue);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: all var(--transition-base);
}

.blog-link:hover {
    color: var(--primary-blue-dark);
    transform: translateX(5px);
}

.blog-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ===== Responsive - Testimonials & Blog ===== */
@media (max-width: 1024px) {
    .testimonial-card {
        min-width: 280px;
        max-width: 320px;
    }

    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .testimonial-card {
        min-width: 260px;
        max-width: 300px;
        padding: var(--spacing-lg);
    }

    .testimonial-card::before {
        font-size: 3rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .blog-image {
        height: 180px;
    }

    .logo-img {
        height: 42px;
        width: auto;
    }
}

/* ===== App Screenshots Section ===== */
.app-screenshots {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.screenshots-carousel {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-2xl);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.screenshot-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    transition: all var(--transition-base);
}

.screenshot-item:hover .screenshot-frame {
    transform: translateY(-12px);
    box-shadow: 0 30px 60px rgba(24, 144, 255, 0.15);
}

.screenshot-frame {
    width: 100%;
    max-width: 280px;
    aspect-ratio: 9 / 20;
    background: white;
    border-radius: 2.5rem;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-slow);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.screenshot-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.screenshot-caption {
    text-align: center;
    width: 100%;
    max-width: 320px;
}

.screenshot-caption h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.screenshot-caption p {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== FAQ Section ===== */
.faq {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
    margin-top: var(--spacing-2xl);
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--gray-200);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--primary-blue);
}

.faq-item.active {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    transition: all var(--transition-base);
}

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

.faq-icon {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--primary-blue);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 1000px;
    opacity: 1;
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq-answer p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul {
    list-style: disc;
    padding-left: var(--spacing-xl);
    margin: var(--spacing-md) 0;
    color: var(--gray-700);
}

.faq-answer li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

.faq-answer strong {
    color: var(--gray-900);
    font-weight: 600;
}

.faq-answer a {
    color: var(--primary-blue);
    text-decoration: underline;
}

.faq-answer a:hover {
    color: var(--primary-blue-dark);
}

/* ===== Responsive - App Screenshots & FAQ ===== */
@media (max-width: 1024px) {
    .screenshots-carousel {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
    }

    .screenshot-frame {
        max-width: 280px;
    }
}

@media (max-width: 768px) {
    .screenshots-carousel {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .screenshot-frame {
        max-width: 260px;
    }

    .faq-question {
        font-size: 1rem;
        padding: var(--spacing-md);
    }

    .faq-item.active .faq-answer {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .screenshot-frame {
        max-width: 240px;
    }
}

/* ===== Article Pages ===== */
.article-hero {
    padding: calc(var(--spacing-3xl) + 80px) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, #F0F4FF 0%, #E6F0FF 100%);
    text-align: center;
}

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

.article-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-blue);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.article-title {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    color: var(--gray-600);
    font-size: 1rem;
}

.article-content {
    padding: var(--spacing-3xl) 0;
}

.article-content .container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-3xl);
    max-width: 1200px;
}

.article-body {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.article-lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 2px solid var(--gray-200);
}

.article-body h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.article-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.article-body p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
}

.article-body ul, .article-body ol {
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-body li {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.article-cta {
    background: #2767cf;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-top: var(--spacing-3xl);
}

.article-cta h3 {
    color: white;
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.article-cta p {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.article-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-widget {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    margin-bottom: var(--spacing-lg);
}

.sidebar-widget h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

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

.related-articles li {
    margin-bottom: var(--spacing-sm);
}

.related-articles a {
    color: var(--gray-700);
    text-decoration: none;
    transition: color var(--transition-base);
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.related-articles a:hover {
    color: var(--primary-blue);
}

.share-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.share-btn {
    padding: 0.75rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.share-btn.facebook {
    background: #1877F2;
    color: white;
}

.share-btn.twitter {
    background: #1DA1F2;
    color: white;
}

.share-btn.line {
    background: #00B900;
    color: white;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ===== Responsive - Article Pages ===== */
@media (max-width: 1024px) {
    .article-content .container {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .article-title {
        font-size: 2.5rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .article-body {
        padding: var(--spacing-lg);
    }

    .article-body h2 {
        font-size: 1.75rem;
    }

    .article-body p,
    .article-body li {
        font-size: 1rem;
    }

    .article-sidebar {
        grid-template-columns: 1fr;
    }

    .article-cta h3 {
        font-size: 1.5rem;
    }

    .article-cta p {
        font-size: 1rem;
    }
}