:root {
            --primary-color: #000000;
            --secondary-color: #ffffff;
            --accent-color: #fe2c55;
            --bg-gradient: linear-gradient(45deg, #000000, #1a1a1a);
        }



        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-gradient);
            color: var(--secondary-color);
        }
        
        
        
         .navbar {
        background-color: #000000;
        padding: 15px 0;
        transition: all 0.3s ease;
    }
    
    .navbar-brand img {
        transition: all 0.3s ease;
    }
    
    .navbar-nav .nav-link {
        color: #ffffff;
        font-weight: 500;
        padding: 0.5rem 1rem;
        transition: color 0.3s ease;
    }
    
    .navbar-nav .nav-link:hover {
        color: #fe2c55;
    }
    
    .navbar-toggler {
        border: none;
        color: #ffffff;
    }
    
    .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
    
    .btn-download {
        background-color: #fe2c55;
        color: #ffffff;
        border-radius: 8px;
        padding: 0.5rem 1.5rem;
        font-weight: 600;
        transition: all 0.3s ease;
    }
    
    .btn-download:hover {
        background-color: #e6254d;
        transform: translateY(-2px);
    }
    
    @media (max-width: 991px) {
        .navbar-collapse {
            background-color: #000000;
            padding: 1rem;
            border-radius: 8px;
            margin-top: 10px;
        }
        
        .btn-download {
            margin-top: 10px;
            display: inline-block;
        }
    }
    
    

        .hero-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 80px 0;
            background: var(--bg-gradient);
        }

        .download-box {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 40px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .input-group {
            background: #ffffff;
            border-radius: 12px;
            padding: 8px;
        }

        .form-control {
            border: none;
            background: transparent;
            font-size: 1.1rem;
            padding: 12px 20px;
        }

        .form-control:focus {
            box-shadow: none;
            background: transparent;
        }

        .btn-paste {
            background: transparent;
            color: #000000;
            border: none;
            padding: 0 20px;
            font-weight: 600;
        }

        .btn-download {
            background: var(--accent-color);
            color: white;
            border: none;
            border-radius: 8px;
            padding: 12px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .btn-download:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(254, 44, 85, 0.3);
        }

        .features {
            margin-top: 60px;
        }

        .feature-item {
            text-align: center;
            padding: 20px;
        }

        .feature-icon {
            font-size: 2rem;
            margin-bottom: 15px;
            color: var(--accent-color);
        }

        @media (max-width: 768px) {
            .download-box {
                padding: 20px;
            }
        }
        
        
        
        
        
        .features-section {
    background-color: #000000; /* 改为黑色背景 */
    color: #ffffff; /* 文字改为白色 */
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #ffffff; /* 标题改为白色 */
}

.section-subtitle {
    font-size: 1.1rem;
    color: #cccccc; /* 副标题改为浅灰色 */
    margin-bottom: 2rem;
}

.feature-card {
    background-color: #1a1a1a; /* 卡片背景改为深灰色 */
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid #333333; /* 边框改为深色 */
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    color: #fe2c55; /* 保持图标为红色 */
    margin-bottom: 20px;
    display: inline-block;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff; /* 卡片标题改为白色 */
}

.feature-card p {
    color: #cccccc; /* 卡片文字改为浅灰色 */
    margin-bottom: 0;
    line-height: 1.6;
}



   .how-to-section {
        background-color: #0a0a0a;
        color: #ffffff;
    }
    
    .steps-container {
        padding: 20px 0;
    }
    
    .step-item {
        display: flex;
        margin-bottom: 30px;
        position: relative;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        background-color: #fe2c55;
        color: #ffffff;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        font-weight: 700;
        margin-right: 20px;
        flex-shrink: 0;
    }
    
    .step-content {
        padding-top: 5px;
    }
    
    .step-content h3 {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 10px;
        color: #ffffff;
    }
    
    .step-content p {
        color: #cccccc;
        margin-bottom: 0;
        line-height: 1.6;
    }
    
    /* 连接线 */
    .step-item:not(:last-child)::after {
        content: '';
        position: absolute;
        top: 50px;
        left: 25px;
        width: 2px;
        height: calc(100% - 20px);
        background-color: rgba(254, 44, 85, 0.3);
    }
    
    /* Phone mockup styles */
    .steps-visual {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100%;
    }
    
    .phone-mockup {
        width: 280px;
        height: 560px;
        background-color: #222;
        border-radius: 36px;
        padding: 12px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        position: relative;
        margin: 0 auto;
    }
    
    .phone-screen {
        width: 100%;
        height: 100%;
        background-color: #111;
        border-radius: 24px;
        overflow: hidden;
        position: relative;
    }
    
    .screen-content {
        padding: 20px;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
    
    .tiktok-interface {
        background-color: #000;
        border-radius: 12px;
        padding: 15px;
        margin-bottom: 20px;
    }
    
    .tiktok-header {
        display: flex;
        align-items: center;
        margin-bottom: 15px;
    }
    
    .app-icon {
        width: 24px;
        height: 24px;
        background-color: #000;
        border-radius: 6px;
        position: relative;
        overflow: hidden;
        margin-right: 8px;
    }
    
    .app-icon::before {
        content: '';
        position: absolute;
        width: 16px;
        height: 16px;
        background-color: #fe2c55;
        top: 4px;
        left: 4px;
    }
    
    .app-name {
        font-weight: bold;
        color: white;
    }
    
    .video-container {
        width: 100%;
        height: 180px;
        background-color: #222;
        border-radius: 8px;
        margin-bottom: 15px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .video-placeholder i {
        font-size: 40px;
        color: rgba(255, 255, 255, 0.5);
    }
    
    .share-button, .copy-link {
        display: flex;
        align-items: center;
        background-color: #222;
        padding: 8px 12px;
        border-radius: 6px;
        margin-bottom: 10px;
    }
    
    .share-button i, .copy-link i {
        margin-right: 8px;
        color: #fe2c55;
    }
    
    .arrow-down {
        text-align: center;
        margin: 15px 0;
    }
    
    .arrow-down i {
        font-size: 24px;
        color: #fe2c55;
    }
    
    .tikshots-interface {
        background-color: #1a1a1a;
        border-radius: 12px;
        padding: 15px;
    }
    
    .site-header {
        font-weight: bold;
        color: white;
        margin-bottom: 15px;
        text-align: center;
    }
    
    .paste-area {
        display: flex;
        background-color: #333;
        border-radius: 8px;
        padding: 10px;
        margin-bottom: 15px;
        align-items: center;
    }
    
    .paste-text {
        flex-grow: 1;
        color: #999;
    }
    
    .paste-button {
        background-color: #444;
        width: 30px;
        height: 30px;
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .download-button {
        background-color: #fe2c55;
        color: white;
        text-align: center;
        padding: 10px;
        border-radius: 8px;
        font-weight: bold;
    }
    
    .download-button i {
        margin-right: 8px;
    }
    
    @media (max-width: 991px) {
        .col-lg-6.order-lg-2 {
            order: 1;
            margin-bottom: 40px;
        }
        
        .col-lg-6.order-lg-1 {
            order: 2;
        }
    }
    
    
    
     /* Testimonials Styles */
    .testimonials-container {
        background-color: #0a0a0a;
    }
    
    .testimonial-card {
        background-color: #1a1a1a;
        border-radius: 10px;
        padding: 30px;
        height: 100%;
        border: 1px solid #333;
        transition: transform 0.3s ease;
    }
    
    .testimonial-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    }
    
    .testimonial-image {
        width: 80px;
        height: 80px;
        margin: 0 auto 20px;
        border: 3px solid #fe2c55;
        border-radius: 50%;
        overflow: hidden;
    }
    
    .testimonial-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    .testimonial-rating {
        color: #fe2c55;
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .testimonial-text {
        color: #cccccc;
        font-style: italic;
        margin-bottom: 20px;
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    .testimonial-name {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 5px;
        color: #ffffff;
    }
    
    .testimonial-location {
        color: #888888;
        font-size: 0.85rem;
    }
    
    @media (max-width: 991px) {
        .testimonial-card {
            margin-bottom: 30px;
        }
    }
    
    
    
    
    
     .faq-section {
        background-color: #0a0a0a;
        color: #ffffff;
    }
    
    .accordion-item {
        background-color: transparent;
        border: 1px solid #333;
        margin-bottom: 15px;
        border-radius: 10px;
        overflow: hidden;
    }
    
    .accordion-button {
        background-color: #1a1a1a;
        color: #ffffff;
        font-weight: 600;
        padding: 20px 25px;
        box-shadow: none;
    }
    
    .accordion-button:not(.collapsed) {
        background-color: #1a1a1a;
        color: #fe2c55;
        box-shadow: none;
    }
    
    .accordion-button:focus {
        box-shadow: none;
        border-color: #333;
    }
    
    .accordion-button::after {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ffffff'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    }
    
    .accordion-button:not(.collapsed)::after {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fe2c55'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    }
    
    .accordion-body {
        background-color: #1a1a1a;
        padding: 20px 25px;
        color: #cccccc;
    }
    
    .accordion-body p {
        margin-bottom: 0;
        line-height: 1.6;
    }
    
    
    
    
     .footer-section {
        background-color: #0a0a0a;
        color: #cccccc;
        border-top: 1px solid #222222;
    }
    
    .footer-logo {
        margin-bottom: 20px;
    }
    
    .footer-description {
        font-size: 0.95rem;
        line-height: 1.6;
        color: #aaaaaa;
    }
    
    .footer-title {
        color: #ffffff;
        font-size: 1.2rem;
        font-weight: 600;
        margin-bottom: 20px;
        position: relative;
        padding-bottom: 10px;
    }
    
    .footer-title:after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 40px;
        height: 2px;
        background-color: #fe2c55;
    }
    
    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    
    .footer-links li {
        margin-bottom: 12px;
    }
    
    .footer-links a {
        color: #aaaaaa;
        text-decoration: none;
        transition: color 0.3s ease;
        font-size: 0.95rem;
    }
    
    .footer-links a:hover {
        color: #fe2c55;
        text-decoration: none;
    }
    
    .social-icons {
        display: flex;
        gap: 15px;
    }
    
    .social-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background-color: #1a1a1a;
        color: #ffffff;
        border-radius: 50%;
        transition: all 0.3s ease;
    }
    
    .social-icon:hover {
        background-color: #fe2c55;
        color: #ffffff;
        transform: translateY(-3px);
    }
    
    .footer-divider {
        margin: 30px 0;
        border-color: #222222;
        opacity: 0.5;
    }
    
    .copyright, .disclaimer {
        font-size: 0.85rem;
        color: #888888;
        margin-bottom: 0;
    }
    
    @media (max-width: 991px) {
        .footer-title {
            margin-top: 20px;
        }
    }