:root {
    --primary-color: #1E88E5;
    --primary-dark: #0D47A1;
    --primary-light: #64B5F6;
    --accent-color: #7EC425;
    --bg-light: #F5F7FA;
    --text-dark: #333333;
    --text-light: #666666;
    --shadow: rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #FAFAFA;
}

/* 日语页面的字体设置 */
html[lang="ja"] body {
    font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

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

.notice-bar {
    background-color: var(--accent-color);
    color: white;
    text-align: center;
    padding: 10px 20px;
    font-weight: 500;
    position: relative;
    z-index: 100;
}

header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    color: white;
    padding: 100px 0 80px;
    text-align: center;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 0 100%);
    margin-bottom: 60px;
}

.logo-container {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.app-logo {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.tagline {
    font-size: 1.8rem;
    margin-bottom: 30px;
    font-weight: 300;
}

.subtitle {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 40px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 5px 15px rgba(126, 196, 37, 0.4);
    transition: var(--transition);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(126, 196, 37, 0.5);
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 60px;
}

.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
}

.feature-card {
    background-color: white;
    border-radius: var(--radius);
    box-shadow: 0 5px 20px var(--shadow);
    padding: 30px;
    flex: 1 1 300px;
    max-width: 350px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.feature-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.feature-description {
    text-align: center;
    color: var(--text-light);
}

.screenshots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin: 50px 0;
    flex-wrap: wrap;
}

.screenshot {
    width: 320px;
    max-width: 100vw;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.screenshot:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.testimonials {
    background-color: var(--bg-light);
    padding: 80px 0;
    margin: 80px 0;
    clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
}

.testimonial-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-text {
    font-size: 1.3rem;
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: 30px;
    position: relative;
}

.testimonial-text::before,
.testimonial-text::after {
    content: '"';
    font-size: 3rem;
    color: var(--primary-light);
    position: absolute;
    opacity: 0.3;
}

.testimonial-text::before {
    top: -20px;
    left: -20px;
}

.testimonial-text::after {
    bottom: -40px;
    right: -20px;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-dark);
}

.download-section {
    text-align: center;
    padding: 60px 0;
    background-color: white;
    border-radius: var(--radius);
    box-shadow: 0 5px 20px var(--shadow);
    margin-bottom: 80px;
}

.download-title {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.download-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 40px;
}

.app-stores {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.store-button {
    display: flex;
    align-items: center;
    background-color: #000;
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    transition: var(--transition);
}

.store-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.store-icon {
    font-size: 2rem;
    margin-right: 10px;
}

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

.store-text-small {
    font-size: 0.8rem;
    display: block;
}

.store-text-big {
    font-size: 1.2rem;
    font-weight: 600;
}

.languages {
    display: flex;
    align-items: center;
    gap: 10px;
    position: absolute;
    top: 50px;
    right: 10px;
    z-index: 1000;
    padding: 5px 10px;    
}

.language-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.8);
    background-color: rgba(255, 255, 255, 0.1);
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid transparent;
}

.language-link:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.language-link.active {
    color: white;
    font-weight: 600;
    background-color: var(--accent-color);
    border-color: white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

footer {
    background-color: var(--primary-dark);
    color: white;
    padding: 50px 0;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: white;
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.security-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px 20px;
    border-radius: var(--radius);
    margin-top: 20px;
}

.security-badge i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-right: 15px;
}

.security-text {
    text-align: left;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.showcase {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 80px 0;
    flex-wrap: wrap;
}

.showcase-content {
    flex: 1;
    min-width: 300px;
    padding: 20px;
}

.showcase-title {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.showcase-description {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.showcase-list {
    list-style: none;
    margin-bottom: 30px;
}

.showcase-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.showcase-list i {
    color: var(--accent-color);
    margin-right: 10px;
    font-size: 1.2rem;
}

.showcase-image {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
    padding: 20px;
}

.device-mockup {
    width: 320px;
    max-width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .languages {
        top: 80px;
        right: 10px;
        z-index: 1000;
    }
    
    .language-link {
        padding: 4px 8px;
        font-size: 0.8rem;
    }
    
    header {
        padding: 120px 0 80px;
    }
    
    .showcase {
        flex-direction: column;
        margin: 40px 0;
    }
    
    .showcase-image {
        order: 1;
        margin-bottom: 30px;
    }
    
    .showcase-content {
        order: 2;
    }
    
    .testimonial-text {
        font-size: 1.1rem;
    }
    
    .download-title {
        font-size: 1.8rem;
    }
}

/* 自定义国旗图标 */
.flag-icon {
    display: inline-block;
    width: 16px;
    height: 12px;
    margin-right: 6px;
    vertical-align: -1px;
    background-size: cover;
    background-position: center;
}

.flag-icon-cn {
    background-image: url('data:image/svg+xml;base64,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');
}

.flag-icon-jp {
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA5MDAgNjAwIj48cGF0aCBmaWxsPSIjZmZmIiBkPSJNMCAwaDkwMHY2MDBIMHoiLz48Y2lyY2xlIGZpbGw9IiNiYzAwMmQiIGN4PSI0NTAiIGN5PSIzMDAiIHI9IjE4MCIvPjwvc3ZnPg==');
}