body {
    background-color: #f8fafc;
    background-image: 
        radial-gradient(at 20% 30%, rgba(37, 99, 235, 0.1) 0px, transparent 50%),
        radial-gradient(at 80% 50%, rgba(59, 130, 246, 0.08) 0px, transparent 50%);
    background-attachment: fixed;
    color: #1e293b;
    line-height: 1.6;
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.container {
    width: 100%;
    max-width: 1580px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 标题样式 */
h1, h2, h3, h4 {
    line-height: 1.3;
    font-weight: 700;
    position: relative;
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    text-align: center;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    border-radius: 2px;
}

h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #334155;
}

/* 文本样式 */
.text-center {
    text-align: center;
}

.text-primary {
    color: #2563eb;
}

.lead {
    font-size: 1.15rem;
    color: #64748b;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 30px;
}

.section-description {
    font-size: 1.1rem;
    color: #64748b;
    margin: 0 auto 40px;
    max-width: 800px;
    text-align: center;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.6s;
    z-index: -1;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    color: #ffffff;
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    background-color: #ffffff;
    color: #2563eb;
    border: 1px solid #3b82f6;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
    background-color: rgba(37, 99, 235, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
}

.btn-telegram {
    background-color: #0088cc;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-telegram:hover {
    background-color: #007ab8;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px -5px rgba(0, 136, 204, 0.3);
}

.btn-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 30px 0;
}

/* 区块样式 */
.section {
    padding: 100px 0;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-sm {
    padding: 70px 0;
}

.section-card {
    background-color: #ffffff;
    border-radius: 12px;
    margin: 40px auto;
    max-width: calc(1200px - 40px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    padding: 60px;
    position: relative;
    overflow: hidden;
}

.section-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

/* 核心介绍区样式 */
.hero {
    padding: 120px 0 150px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    position: relative;
    overflow: hidden;
    color: #ffffff;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 100'%3E%3Cpath fill='%23f8fafc' fill-opacity='1' d='M0,64L60,69.3C120,75,240,85,360,80C480,75,600,53,720,48C840,43,960,53,1080,58.7C1200,64,1320,64,1380,64L1440,64L1440,100L1380,100C1320,100,1200,100,1080,100C960,100,840,100,720,100C600,100,480,100,360,100C240,100,120,100,60,100L0,100Z'%3E%3C/path%3E%3C/svg%3E");
    background-size: cover;
    background-repeat: no-repeat;
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1200px;
    margin: 30px auto 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    color: #FFF;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 60px;
}

.highlight-item {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
}

.highlight-item i {
    font-size: 24px;
    margin-bottom: 15px;
    color: #ffffff;
}

/* 定义说明区样式 */
.definition-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.definition-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #334155;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background-color: #f8fafc;
    border-radius: 12px;
}

.feature-item i {
    color: #2563eb;
    font-size: 20px;
    margin-top: 3px;
}

/* 适用场景区样式 */
.scenarios {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.scenario-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 35px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
}

.scenario-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(37, 99, 235, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.scenario-icon i {
    font-size: 36px;
    color: #2563eb;
}

.scenario-card p {
    color: #64748b;
}

/* 优势说明区样式 */
.advantages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 35px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
}

.advantage-header {
    display: flex;
    align-items: center;
    gap: 15px;
}

.advantage-header i {
    color: #10b981;
    font-size: 24px;
    background-color: rgba(16, 185, 129, 0.1);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-card p {
    color: #64748b;
    margin-left: 55px;
}

/* 购买说明区样式 */
.purchase-info {
    max-width: 1000px;
    margin: 0 auto;
}

.purchase-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.purchase-item {
    background-color: #f8fafc;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
}

.purchase-item i {
    color: #2563eb;
    font-size: 28px;
    margin-bottom: 20px;
}

.purchase-item h3 {
    text-align: center;
}

.quantity-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 15px;
}

.quantity-option {
    padding: 5px 15px;
    background-color: #ffffff;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid #e2e8f0;
}

/* FAQ样式 */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
}

.faq-question {
    width: 100%;
    padding: 20px 25px;
    text-align: left;
    background-color: #ffffff;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: "+";
    font-size: 1.4rem;
    color: #2563eb;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-question.active::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background-color: #ffffff;
}

.faq-answer.active {
    padding: 0 25px 25px;
    max-height: 500px;
}

.faq-answer p {
    color: #64748b;
    line-height: 1.7;
}

/* CTA区域样式 */
.cta-section {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    padding: 100px 0;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
    color: #ffffff;
    border-radius: 12px 12px 0 0;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.1) 0%, transparent 30%),
        radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    color: #ffffff;
    margin-bottom: 30px;
}

.cta-content h2::after {
    background: #ffffff;
    opacity: 0.5;
}

.cta-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    padding: 16px 36px;
    font-size: 1.1rem;
}

/* 响应式调整 */
@media (max-width: 992px) {
    h1 {
        font-size: 2.4rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero h1 {
        font-size: 2.6rem;
    }
    
    .section-card {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .hero {
        padding: 80px 0 100px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .section-card {
        padding: 30px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero h1 {
        font-size: 1.9rem;
    }
    
    .btn-group {
        gap: 15px;
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .scenarios, .advantages {
        grid-template-columns: 1fr;
    }
}