/* 首页专用的深色主题样式 */
body {
    background-color: #0a0a0f;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.landing-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
    box-sizing: border-box;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 顶部导航栏 */
.landing-header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 20px 0;
}

.landing-header .btn {
    padding: 10px 24px;
    font-size: 14px;
}

/* 主内容区 */
.landing-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 60px 20px;
}

.landing-main h1 {
    font-size: 64px;
    font-weight: 700;
    margin: 0 0 16px 0;
    letter-spacing: -2px;
    background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing-main .tagline {
    font-size: 20px;
    color: #888888;
    margin: 0 0 60px 0;
    font-weight: 400;
}

/* 功能卡片网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    width: 100%;
    max-width: 1000px;
    margin-bottom: 60px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 12px 0;
    color: #ffffff;
}

.feature-card p {
    font-size: 14px;
    color: #888888;
    margin: 0;
    line-height: 1.5;
}

/* 底部版权 */
.landing-footer {
    text-align: center;
    padding: 20px 0;
    color: #555555;
    font-size: 13px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: #2c374e;
    color: #ffffff;
}

.btn-primary:hover {
    background: #3a4a6b;
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .landing-main h1 {
        font-size: 40px;
    }

    .landing-main .tagline {
        font-size: 16px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    .landing-header {
        padding: 16px 0;
    }

    .landing-main {
        padding: 40px 16px;
    }
}

/* 确保原有样式不被影响 */
.container {
    max-width: 100%;
    background-color: transparent;
}