:root {
    --primary: #00875A;
    --primary-hover: #006B45;
    --bg: #FAFBFC;
    --bg-card: #FFFFFF;
    --text: #1F2937;
    --text-secondary: #6B7280;
    --border: #E5E7EB;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

[class*="-header"] {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

[class*="-header-inner"] {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

[class*="-logo"] {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

[class*="-nav"] {
    display: flex;
    gap: 24px;
}

[class*="-nav"] a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

[class*="-nav"] a:hover {
    color: var(--primary);
}

[class*="-hero"] {
    padding: 60px 0 50px;
    text-align: center;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

[class*="-hero"] h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    color: var(--text);
}

[class*="-hero"] p {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto 24px;
}

[class*="-btn-group"] {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
}

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

[class*="-section"] {
    padding: 50px 0;
}

[class*="-section-title"] {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

[class*="-card-grid"] {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

[class*="-card"] {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.2s;
}

[class*="-card"]:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

[class*="-card"] h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--primary);
}

[class*="-card"] p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

[class*="-download"] {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

[class*="-download-grid"] {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

[class*="-download-card"] {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    transition: all 0.2s;
}

[class*="-download-card"]:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

[class*="-download-card"] h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

[class*="-download-card"] p {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 16px;
}

[class*="-download-card"] .btn {
    width: 100%;
    padding: 10px 16px;
    font-size: 0.85rem;
}

[class*="-guide-list"] {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

[class*="-guide-item"] {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    transition: all 0.2s;
}

[class*="-guide-item"]:hover {
    border-color: var(--primary);
}

[class*="-guide-item"] h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--primary);
}

[class*="-guide-item"] p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

[class*="-faq-list"] {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

[class*="-faq-item"] {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

[class*="-faq-question"] {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: background 0.2s;
}

[class*="-faq-question"]:hover {
    background: var(--bg);
}

[class*="-faq-question"] span:first-child::before {
    content: 'Q';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-size: 0.7rem;
    margin-right: 12px;
    flex-shrink: 0;
}

[class*="-faq-toggle"] {
    font-size: 1.2rem;
    color: var(--primary);
    transition: transform 0.3s;
}

[class*="-faq-answer"] {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

[class*="-faq-item"].active [class*="-faq-answer"] {
    padding: 0 20px 16px;
    max-height: 200px;
}

[class*="-faq-item"].active [class*="-faq-toggle"] {
    transform: rotate(45deg);
}

[class*="-related"] {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
}

[class*="-related-list"] {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

[class*="-related-link"] {
    display: block;
    padding: 14px 18px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

[class*="-related-link"]:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--bg-card);
}

[class*="-footer"] {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 30px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

[class*="-footer-links"] {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
}

[class*="-footer-links"] a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
}

[class*="-footer-links"] a:hover {
    color: var(--primary);
}

[class*="-footer-desc"] {
    font-size: 0.75rem;
    margin-top: 8px;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    [class*="-header-inner"] {
        flex-direction: column;
        gap: 12px;
    }

    [class*="-nav"] {
        gap: 16px;
    }

    [class*="-hero"] {
        padding: 40px 0 35px;
    }

    [class*="-hero"] h1 {
        font-size: 1.5rem;
    }

    [class*="-download-grid"] {
        grid-template-columns: 1fr;
    }

    [class*="-section"] {
        padding: 35px 0;
    }

    [class*="-card"] {
        padding: 20px;
    }
}

@media (min-width: 769px) {
    [class*="-download-grid"] {
        grid-template-columns: repeat(3, 1fr);
    }
}