* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Segoe UI', Roboto, system-ui, sans-serif;
}

body {
    background-color: #F9FAFB;
    color: #111827;
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 标题样式 */
h1 {
    font-size: 2.5rem;
    line-height: 1.3;
    font-weight: 800;
    margin-bottom: 20px;
}

h2 {
    font-size: 2rem;
    line-height: 1.3;
    font-weight: 700;
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #7B61FF, #A28FFF);
    border-radius: 2px;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #5D40E6;
}

/* 文本样式 */
p {
    font-size: 1.05rem;
    color: #374151;
    margin-bottom: 1.2rem;
}

.text-center {
    text-align: center;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #7B61FF 0%, #5D40E6 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 15px rgba(123, 97, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(123, 97, 255, 0.4);
}

.btn-secondary {
    background-color: #FFFFFF;
    color: #7B61FF;
    border: 1px solid #7B61FF;
}

.btn-secondary:hover {
    background-color: rgba(123, 97, 255, 0.05);
    transform: translateY(-3px);
}

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

/* 区块样式 */
.section {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.section-sm {
    padding: 60px 0;
}

.section-purple {
    background: linear-gradient(180deg, rgba(123, 97, 255, 0.03) 0%, rgba(123, 97, 255, 0.01) 100%);
}

/* 装饰元素 */
.decor {
    position: absolute;
    pointer-events: none;
    opacity: 0.05;
}

/* 顶部Banner */
.banner {
    padding: 100px 0;
    position: relative;
    background-color: #111827;
    color: #FFFFFF;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(123, 97, 255, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(123, 97, 255, 0.2) 0%, transparent 40%);
    z-index: 0;
}

.banner-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.banner-text {
    flex: 1;
    min-width: 300px;
}
.banner-text h1{color: #FFF}
.banner-text p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.15rem;
    margin-bottom: 30px;
    max-width: 600px;
}

.banner-visual {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.map-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 350px;
}

.world-map {
    width: 100%;
    height: 100%;
    background-image: url('../assets/vb.png');
    background-size: cover;
    background-position: center;
    border-radius: 12px;
    opacity: 0.9;
    filter: brightness(0.7) contrast(1.2);
    position: relative;
    overflow: hidden;
}

.world-map::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(123, 97, 255, 0.2) 0%, transparent 70%);
}

.viber-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background-color: #7B61FF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    box-shadow: 0 0 30px rgba(123, 97, 255, 0.5);
    z-index: 1;
}

.pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background-color: rgba(123, 97, 255, 0.3);
    border-radius: 50%;
    animation: pulse 2.5s infinite;
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(3);
        opacity: 0;
    }
}

/* 差异化说明 */
.intro {
    background-color: #FFFFFF;
}

.intro-content {
    margin: 0 auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.comparison-table th,
.comparison-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid #E5E7EB;
}

.comparison-table th {
    background-color: #7B61FF;
    color: #FFFFFF;
    font-weight: 600;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:nth-child(even) {
    background-color: #F9FAFB;
}

.comparison-table td:first-child {
    font-weight: 600;
    color: #111827;
}

/* 核心特点 */
.features {
    background-color: #F9FAFB;
}

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

.feature-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    padding: 35px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #7B61FF, #A28FFF);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(123, 97, 255, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background-color: rgba(123, 97, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.feature-icon i {
    font-size: 24px;
    color: #7B61FF;
}

/* 应用场景 */
.scenarios {
    background-color: #FFFFFF;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.scenario-item {
    padding: 30px;
    border-radius: 12px;
    background-color: #F9FAFB;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.scenario-item:hover {
    background-color: rgba(123, 97, 255, 0.03);
    transform: translateY(-5px);
}

.scenario-item i {
    font-size: 28px;
    color: #7B61FF;
    margin-bottom: 20px;
}

/* 供货规格 */
.specifications {
    background-color: #F9FAFB;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background-color: #FFFFFF;
}

.specs-table th,
.specs-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid #E5E7EB;
}

.specs-table th {
    background-color: #5D40E6;
    color: #FFFFFF;
    font-weight: 600;
}

.specs-table tr:last-child td {
    border-bottom: none;
}

.specs-table tr:nth-child(even) {
    background-color: #F9FAFB;
}

/* 信任背书 */
.trust {
    background-color: #FFFFFF;
    text-align: center;
}

.trust-content {
    margin: 0 auto;
}

.trust-points {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.trust-point {
    padding: 25px;
    background-color: #F9FAFB;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.trust-point:hover {
    transform: translateY(-5px);
    background-color: rgba(123, 97, 255, 0.03);
}

.trust-point i {
    font-size: 32px;
    color: #7B61FF;
    margin-bottom: 15px;
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, #7B61FF 0%, #4A30D5 100%);
    color: #FFFFFF;
    text-align: center;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

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

.cta-content {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.cta-section h2 {
    color: #FFFFFF;
}

.cta-section h2::after {
    background: rgba(255, 255, 255, 0.3);
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.cta-section .btn-primary {
    background: #FFFFFF;
    color: #7B61FF;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.cta-section .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

.cta-section .btn-secondary {
    background-color: transparent;
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.cta-section .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .container {
        max-width: 90%;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .banner {
        padding: 80px 0;
    }
    
    .map-container {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .section-sm {
        padding: 40px 0;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    .btn {
        padding: 12px 24px;
        width: 100%;
        justify-content: center;
    }
    
    .btn-group {
        flex-direction: column;
        gap: 15px;
    }
    
    .banner {
        padding: 60px 0;
    }
    
    .banner-content {
        gap: 30px;
    }
    
    .map-container {
        height: 250px;
    }
    
    .viber-logo {
        width: 100px;
        height: 100px;
        font-size: 3rem;
    }
    
    .features-grid,
    .scenarios-grid,
    .trust-points {
        grid-template-columns: 1fr;
    }
    
    .comparison-table th,
    .comparison-table td,
    .specs-table th,
    .specs-table td {
        padding: 14px 18px;
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .map-container {
        height: 200px;
    }
    
    .viber-logo {
        width: 80px;
        height: 80px;
        font-size: 2.5rem;
    }
    
    .cta-section {
        padding: 80px 0;
    }
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}