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

body {
    font-family: 'Noto Sans SC', sans-serif;
    background: #ffffff;
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    color: #333;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo-img {
    width: 50px;
    height: 50px;
    margin-right: 12px;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.tagline {
    font-size: 1.1rem;
    color: #7f8c8d;
    font-weight: 400;
    margin-top: 8px;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.quote-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    border: 1px solid #e9ecef;
}


.quote-content {
    font-size: 1.4rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: #555;
    font-weight: 500;
}

.quote-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: #2c3e50;
    color: white;
}

.btn-primary:hover {
    background: #34495e;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(44, 62, 80, 0.3);
}

.btn-secondary {
    background: #f8f9fa;
    color: #666;
    border: 2px solid #e9ecef;
}

.btn-secondary:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.btn-tertiary {
    background: transparent;
    color: #2c3e50;
    border: 2px solid #2c3e50;
}

.btn-tertiary:hover {
    background: #2c3e50;
    color: white;
    transform: translateY(-2px);
}

/* 功能介绍区域 */
.intro-section {
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.intro-section h2 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: #2c3e50;
    font-weight: 600;
}

.intro-section p {
    margin-bottom: 12px;
    line-height: 1.7;
    color: #555;
}

.intro-section p:last-child {
    margin-bottom: 0;
}

/* 使用步骤 */
.steps-section {
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 30px;
}

.steps-section h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: #2c3e50;
    font-weight: 600;
}

.steps-list {
    list-style: none;
    counter-reset: step-counter;
    padding-left: 0;
}

.steps-list li {
    counter-increment: step-counter;
    margin-bottom: 20px;
    padding-left: 40px;
    position: relative;
    line-height: 1.7;
    color: #555;
}

.steps-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 28px;
    height: 28px;
    background: #2c3e50;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.steps-list li strong {
    color: #2c3e50;
    font-weight: 600;
}

/* 示例区域 */
.examples-section {
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.examples-section h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: #2c3e50;
    font-weight: 600;
}

.example-box {
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: 6px;
    border-left: 3px solid #2c3e50;
}

.example-box:last-child {
    margin-bottom: 0;
}

.example-box h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: #2c3e50;
    font-weight: 600;
}

.example-box p {
    margin-bottom: 12px;
    line-height: 1.7;
    color: #555;
}

.example-quote {
    margin: 16px 0;
    padding: 16px 20px;
    background: #f8f9fa;
    border-left: 3px solid #95a5a6;
    font-style: italic;
    color: #555;
    line-height: 1.6;
}

/* FAQ区域 */
.faq-section {
    max-width: 800px;
    margin: 0 auto 40px;
    padding: 30px;
}

.faq-section h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: #2c3e50;
    font-weight: 600;
}

.faq-item {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e9ecef;
}

.faq-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.faq-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: #2c3e50;
    font-weight: 600;
}

.faq-item p {
    line-height: 1.7;
    color: #555;
}

.footer {
    text-align: center;
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid #e9ecef;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: #34495e;
    text-decoration: underline;
}

.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    color: white;
}

.loading.show {
    display: flex;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #2c3e50;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #4CAF50;
    color: white;
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.notification.show {
    transform: translateX(0);
}

.notification.error {
    background: #f44336;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .quote-card {
        padding: 30px 20px;
        margin: 0 10px 30px;
    }
    
    .quote-content {
        font-size: 1.2rem;
    }
    
    .quote-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
    }
    
    .intro-section,
    .steps-section,
    .examples-section,
    .faq-section {
        padding: 20px;
        margin-bottom: 30px;
    }
    
    .steps-list li {
        padding-left: 35px;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .quote-content {
        font-size: 1.1rem;
    }
    
    .intro-section,
    .steps-section,
    .examples-section,
    .faq-section {
        padding: 15px;
    }
    
    .example-box {
        padding: 15px;
    }
}