body { padding-top: 0; }

.page-banner {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(rgba(48, 48, 91, 0.85), rgba(112, 112, 192, 0.7)), url(../img/qgczx_background.png);
    background-size: 100% auto;
    background-position: center top;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding: 120px 20px 60px 20px;
}
.page-banner h1 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.page-banner p {
    font-size: 20px;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
}
.section-padding { padding: 80px 0; }
.section-title {
    text-align: center;
    margin-bottom: 60px;
}
.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 16px;
}
.section-title p {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}
.service-card {
    background: #fff;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    height: 100%;
    transition: all 0.3s ease;
}
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.12);
}
.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #fff;
    font-size: 36px;
}
.service-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 16px;
}
.service-card p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}
/* 架构图样式 */
.architecture-diagram {
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%);
    border-radius: 20px;
    padding: 40px;
    margin: 40px 0;
}
.arch-layer {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.arch-layer:last-child {
    margin-bottom: 0;
}
.arch-box {
    background: #fff;
    border-radius: 12px;
    padding: 20px 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    min-width: 130px;
    transition: all 0.3s ease;
}
.arch-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}
.arch-box.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}
.arch-box.secondary {
    background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
    color: #fff;
}
.arch-box.tertiary {
    background: linear-gradient(135deg, #a855f7 0%, #c084fc 100%);
    color: #fff;
}
.arch-box.accent {
    background: linear-gradient(135deg, #d946ef 0%, #e879f9 100%);
    color: #fff;
}
.arch-box.green {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    color: #fff;
}
.arch-box i {
    font-size: 26px;
    margin-bottom: 10px;
    display: block;
}
.arch-box h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
}
.arch-box p {
    font-size: 11px;
    margin: 0;
    opacity: 0.9;
    line-height: 1.4;
}
.arch-connector {
    text-align: center;
    color: #667eea;
    font-size: 22px;
    margin: 10px 0;
}
.arch-title {
    text-align: center;
    margin-bottom: 25px;
}
.arch-title h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}
.arch-title p {
    font-size: 13px;
    color: #666;
}
.arch-item i {
    font-size: 18px;
    color: #667eea;
    margin-bottom: 6px;
}
.arch-item span {
    display: block;
    font-size: 12px;
    color: #555;
    font-weight: 500;
}
.highlight-section {
    background: #f8f9fa;
}
.process-item {
    display: flex;
    align-items: flex-start;
    padding: 30px;
    background: #fff;
    border-radius: 16px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.process-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 24px;
    flex-shrink: 0;
    color: #fff;
    font-size: 24px;
    font-weight: 700;
}
.process-content h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}
.process-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin: 0;
}
.value-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    height: 100%;
    border-top: 4px solid #667eea;
}
.value-card h4 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}
.value-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}
.cta-section h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}
.cta-section p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}
.btn-white {
    background: #fff;
    color: #667eea;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}
.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    color: #667eea;
}

.case-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}
.case-header {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    padding: 40px;
    color: #fff;
}
.case-content {
    padding: 40px;
}
.activity-list {
    list-style: none;
    padding: 0;
}