/* 公共样式 - 重新设计版 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: #121212;
    color: #ffffff;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 头部样式 */
header {
    background-color: #1e1e1e;
    padding: 16px 0;
    border-bottom: 1px solid #333333;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 600;
    color: #bb86fc;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 26px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 28px;
}

nav ul li a {
    color: #e0e0e0;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s ease;
    position: relative;
}

nav ul li a:hover {
    color: #bb86fc;
}

nav ul li a.active {
    color: #bb86fc;
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #bb86fc;
    border-radius: 1px;
}

a {
    text-decoration: none;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    background-color: #6200ee;
    color: #ffffff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    gap: 8px;
    font-size: 14px;
}

.btn:hover {
    background-color: #7b1aff;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: #333333;
    color: #e0e0e0;
}

.btn-secondary:hover {
    background-color: #424242;
}

/* 卡片样式 */
.card {
    background-color: #1e1e1e;
    border-radius: 8px;
    padding: 24px;
    border: 1px solid #333333;
    transition: all 0.3s ease;
}

.card:hover {
    border-color: #474747;
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* 页脚样式 */
footer {
    background-color: #1e1e1e;
    padding: 48px 0 24px;
    margin-top: 64px;
    border-top: 1px solid #333333;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-column h3 {
    color: #bb86fc;
    margin-bottom: 16px;
    font-size: 18px;
    font-weight: 600;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.2s;
    font-size: 14px;
}

.footer-column ul li a:hover {
    color: #bb86fc;
}

.copyright {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid #333333;
    font-size: 13px;
    color: #888888;
}

/* 通用组件 */
.section-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 32px;
    color: #ffffff;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 40px;
    height: 3px;
    background-color: #bb86fc;
    border-radius: 2px;
}

/* 使用场景部分样式 */
.usage-scenarios {
    background-color: #1e1e1e;
    padding: 60px 0;
    margin-top: 40px;
}

.usage-scenarios .section-title {
    text-align: center;
    margin-bottom: 40px;
        color: #ffffff;
    font-size: 2rem;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 0 auto;
}

.scenario-card {
    /* background: #ffffff; */
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #333333;
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.scenario-icon {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 20px;
}

.scenario-card h3 {
    text-align: center;
    color: #bb86fc;
    margin: 0 0 15px 0;
    font-size: 1.4rem;
    font-weight: 600;
}

.scenario-card p {
    text-align: center;

    color: #b0b0b0;
    line-height: 1.6;
    margin: 0;
    font-size: 1rem;
}
/* 使用说明部分样式 */
.usage-instructions {
    background-color: #1e1e1e;
    padding: 60px 0;
    margin-top: 40px;
    border-top: 1px solid #333333;
}

.usage-instructions .section-title {
    text-align: center;
    margin-bottom: 40px;
    color: #ffffff;
    font-size: 2rem;
}

.instructions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.instruction-card {
    background: #2d2d2d;
    border-radius: 12px;
    padding: 30px;
    border: 1px solid #444444;
    transition: all 0.3s ease;
    display: flex;
    gap: 20px;
}

.instruction-card:hover {
    transform: translateY(-5px);
    border-color: #bb86fc;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.instruction-step {
    min-width: 40px;
    height: 40px;
    background: #6200ee;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    color: white;
}

.instruction-content h3 {
    color: #bb86fc;
    margin: 0 0 15px 0;
    font-size: 1.3rem;
    font-weight: 600;
}

.instruction-content p {
    color: #b0b0b0;
    line-height: 1.6;
    margin: 0;
    font-size: 1rem;
}

.tips-section {
    background: #252525;
    border-radius: 12px;
    padding: 30px;
    border: 1px solid #444444;
}

.tips-section h3 {
    color: #bb86fc;
    margin-bottom: 20px;
    font-size: 1.4rem;
    text-align: center;
}

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

.tips-list li {
    padding: 12px 0;
    border-bottom: 1px solid #333333;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: #b0b0b0;
}

.tips-list li:last-child {
    border-bottom: none;
}

.tips-list li:first-child {
    padding-top: 0;
}

.tip-icon {
    font-size: 1.2rem;
}
.guide-card{
    margin-top: 10px;
}
/* 响应式设计 */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 16px;
        padding: 12px 0;
    }

    nav ul {
        gap: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .usage-scenarios {
        padding: 40px 0;
    }

    .usage-scenarios .section-title {
        font-size: 1.7rem;
        margin-bottom: 30px;
    }

    .scenarios-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .scenario-card {
        padding: 20px;
    }

    .scenario-icon {
        font-size: 2rem;
        margin-bottom: 15px;
    }

    .scenario-card h3 {
        font-size: 1.2rem;
    }
     .usage-instructions {
        padding: 40px 0;
    }
    
    .usage-instructions .section-title {
        font-size: 1.7rem;
        margin-bottom: 30px;
    }
    
    .instructions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .instruction-card {
        padding: 20px;
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .instruction-step {
        margin: 0 auto;
    }
    
    .tips-section {
        padding: 20px;
    }
    
    .tips-section h3 {
        font-size: 1.2rem;
    }

}

@media (max-width: 480px) {
    .usage-scenarios {
        padding: 30px 0;
    }

    .usage-scenarios .section-title {
        font-size: 1.5rem;
    }

    .scenarios-grid {
        gap: 15px;
    }

    .scenario-card {
        padding: 15px;
    }
     .usage-instructions {
        padding: 30px 0;
        margin-top: 30px;
    }
    
    .usage-instructions .section-title {
        font-size: 1.5rem;
    }
    
    .instructions-grid {
        gap: 15px;
    }
    
    .instruction-card {
        padding: 15px;
    }
    
    .instruction-content h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    
    .instruction-content p {
        font-size: 0.9rem;
    }
    
    .tips-list li {
        font-size: 0.9rem;
        gap: 10px;
    }
}