body {
    background: linear-gradient(135deg, #e9eefd 0%, #f8f9fa 100%);
    font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    color: #222;
    min-height: 100vh;
}
.navbar {
    background: #fff !important;
    border-bottom: 2px solid #e0e6f6;
    box-shadow: 0 2px 12px rgba(41,50,225,0.04);
}
.navbar .navbar-brand {
    color: #2932e1 !important;
    font-weight: bold;
    font-size: 2rem;
    letter-spacing: 2px;
    text-shadow: 0 2px 8px #e0e6f6;
}
.navbar .nav-link {
    color: #222 !important;
    font-weight: 500;
    border-radius: 6px;
    margin: 0 2px;
    transition: background 0.2s, color 0.2s;
}
.navbar .nav-link.active, .navbar .nav-link:hover {
    color: #fff !important;
    background: linear-gradient(90deg, #2932e1 0%, #4f8cff 100%);
    border-bottom: none;
}
.hero-section {
    background: linear-gradient(120deg, #e9eefd 0%, #fff 100%);
    color: #222;
    padding: 60px 0 40px 0;
    border-bottom: 2px solid #e0e6f6;
    text-align: left;
    box-shadow: 0 8px 32px rgba(41,50,225,0.07);
    position: relative;
    overflow: hidden;
}
.hero-section h1 {
    font-size: 3.2rem;
    color: #2932e1;
    font-weight: bold;
    margin-bottom: 12px;
    letter-spacing: 2px;
    text-shadow: 0 6px 24px #e0e6f6;
}
.hero-section h2 {
    font-size: 1.5rem;
    color: #4f8cff;
    margin-bottom: 22px;
    font-weight: 500;
}
.hero-section .lead {
    color: #666;
    font-size: 1.15rem;
    margin-bottom: 28px;
}
.hero-section .btn-lg {
    border-radius: 24px;
    font-size: 1.15rem;
    padding: 0.7rem 2.5rem;
    margin-right: 16px;
    background: linear-gradient(90deg, #2932e1 0%, #4f8cff 100%);
    color: #fff;
    border: none;
    box-shadow: 0 4px 16px rgba(41,50,225,0.13);
    transition: transform 0.18s, box-shadow 0.18s, background 0.18s;
}
.hero-section .btn-lg:hover {
    background: linear-gradient(90deg, #4f8cff 0%, #2932e1 100%);
    color: #fff;
    transform: translateY(-2px) scale(1.06);
    box-shadow: 0 8px 32px rgba(41,50,225,0.18);
}
.section-title {
    font-size: 1.7rem;
    color: #2932e1;
    font-weight: bold;
    border-left: 6px solid #4f8cff;
    padding-left: 16px;
    margin-bottom: 36px;
    background: linear-gradient(90deg, #f3f6fd 60%, #e9eefd 100%);
    box-shadow: 0 2px 8px #e0e6f6;
    border-radius: 0 16px 16px 0;
}
.card {
    border-radius: 18px;
    border: none;
    box-shadow: 0 4px 32px rgba(41,50,225,0.08), 0 1.5px 6px #e0e6f6;
    background: #fff;
    transition: box-shadow 0.22s, transform 0.22s;
}
.card:hover {
    box-shadow: 0 8px 48px rgba(41,50,225,0.16), 0 2px 12px #e0e6f6;
    transform: translateY(-4px) scale(1.02);
}
.feature-card, .process-card, .faq-card, .testimonial-card, .price-card {
    margin-bottom: 28px;
    border-radius: 18px;
}
.price-card.popular {
    border: 3px solid #4f8cff;
    background: linear-gradient(120deg, #f3f6fd 60%, #e9eefd 100%);
    box-shadow: 0 8px 32px #e0e6f6;
}
.price-card .card-title {
    color: #2932e1;
    font-weight: bold;
    font-size: 1.3rem;
}
.price-card .btn {
    border-radius: 24px;
    font-size: 1.1rem;
    background: linear-gradient(90deg, #2932e1 0%, #4f8cff 100%);
    color: #fff;
    border: none;
    box-shadow: 0 2px 8px #e0e6f6;
    transition: background 0.18s, box-shadow 0.18s;
}
.price-card .btn:hover {
    background: linear-gradient(90deg, #4f8cff 0%, #2932e1 100%);
    color: #fff;
    box-shadow: 0 4px 16px #4f8cff;
}
.faq-question {
    color: #2932e1;
    font-weight: 600;
    font-size: 1.1rem;
}
footer {
    background: #1a1a1a;
    color: #fff;
    border-top: 2px solid #333;
    margin-top: 48px;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.2);
}
.footer-company {
    color: #aaa;
    font-size: 1rem;
}
.process-icon {
    font-size: 2.5rem;
    color: #2932e1;
    background: #f3f6fd;
    border-radius: 50%;
    padding: 15px;
    box-shadow: 0 4px 8px rgba(41,50,225,0.1);
}
.sidebar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(41,50,225,0.1);
    padding: 15px;
    z-index: 1000;
}
.sidebar a {
    display: block;
    margin: 10px 0;
    color: #2932e1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
.sidebar a:hover {
    color: #4f8cff;
}
.price-card {
    transition: transform 0.3s, box-shadow 0.3s;
}
.price-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 32px rgba(41,50,225,0.2);
}
hr {
    border: none;
    border-top: 1.5px dashed #e0e6f6;
    margin: 32px 0;
}
@media (min-width: 992px) {
    .container {
        max-width: 1200px;
    }
}
.testimonial-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 32px rgba(41,50,225,0.08), 0 1.5px 6px #e0e6f6;
    transition: box-shadow 0.22s, transform 0.22s;
    padding: 20px;
}
.testimonial-card:hover {
    box-shadow: 0 8px 48px rgba(41,50,225,0.16), 0 2px 12px #e0e6f6;
    transform: translateY(-4px) scale(1.02);
}
.faq-card {
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 32px rgba(41,50,225,0.08), 0 1.5px 6px #e0e6f6;
    transition: box-shadow 0.22s, transform 0.22s;
    padding: 20px;
    cursor: pointer;
}
.faq-card:hover {
    box-shadow: 0 8px 48px rgba(41,50,225,0.16), 0 2px 12px #e0e6f6;
    transform: translateY(-4px) scale(1.02);
}
.faq-answer {
    display: none;
    margin-top: 10px;
    color: #666;
}
.faq-card.active .faq-answer {
    display: block;
}