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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e0e0e0;
    position: relative;
}

.language-selector {
    position: absolute;
    top: 0;
    right: 0;
}

.language-selector select {
    appearance: none;
    -webkit-appearance: none;
    background: white url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E") no-repeat right 0.6rem center;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 0.4rem 2rem 0.4rem 0.6rem;
    font-size: 0.85rem;
    color: #333;
    cursor: pointer;
    font-family: inherit;
}

.language-selector select:hover {
    border-color: #007AFF;
}

.language-selector select:focus {
    outline: none;
    border-color: #007AFF;
    box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.2);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #000;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    font-weight: 400;
}

main {
    margin-bottom: 3rem;
}

section {
    margin-bottom: 3rem;
}

.intro {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #000;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 1.5rem;
    transition: box-shadow 0.2s ease;
}

.faq-item:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.faq-question {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0;
    color: #000;
}

.faq-toggle {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #000;
    font-family: inherit;
}

.faq-toggle:hover {
    color: #007AFF;
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    line-height: 1;
    color: #007AFF;
    min-width: 1.2rem;
    text-align: center;
}

.faq-answer-wrapper {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer-wrapper.expanded {
    max-height: 2000px;
    transition: max-height 0.3s ease-in;
}

.faq-answer {
    color: #666;
    line-height: 1.7;
    padding-top: 0.75rem;
    margin-bottom: 0.5rem;
}

.faq-steps {
    color: #666;
    line-height: 1.8;
    padding-left: 1.5rem;
    margin-top: 0.5rem;
    margin-bottom: 0;
}

.faq-steps li {
    margin-bottom: 0.5rem;
}

.faq-steps li:last-child {
    margin-bottom: 0;
}

.faq-subsection {
    margin-top: 1rem;
    font-weight: 600;
    color: #333;
}

.contact {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.contact p {
    margin-bottom: 0.5rem;
    color: #666;
}

.contact a {
    color: #007AFF;
    text-decoration: none;
    font-weight: 500;
}

.contact a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #e0e0e0;
    color: #999;
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    header {
        padding-top: 2.5rem;
    }

    header h1 {
        font-size: 2rem;
    }

    .container {
        padding: 1.5rem 1rem;
    }

    .faq-item {
        padding: 1.25rem;
    }
}