body {
    padding-top: 0;
}

.page-banner {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(rgba(30, 30, 60, 0.85), rgba(79, 172, 254, 0.5)), url(../img/wlsq_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;
}

.overview-box {
    background: #fff;
    border-radius: 20px;
    padding: 50px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.overview-box h3 {
    font-size: 28px;
    font-weight: 600;
    color: #333;
    margin-bottom: 24px;
    text-align: center;
}

.overview-box p {
    font-size: 16px;
    color: #555;
    line-height: 2;
    margin-bottom: 20px;
}

.overview-box strong {
    color: #4facfe;
}

.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-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: #4facfe;
    margin-bottom: 6px;
}

.arch-item span {
    display: block;
    font-size: 12px;
    color: #555;
    font-weight: 500;
}

.framework-card h3 {
    font-size: 28px;
    font-weight: 600;
    color: #333;
    margin-bottom: 16px;
}

.framework-card p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

.scene-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px; /* 减小间距 */
}

.scene-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px 28px; /* ✅ 增大内边距：上下30px，左右28px */
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.scene-card:hover {
    transform: translateY(-4px);
    border-color: #4facfe;
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

.scene-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px; /* 减小间距 */
    color: #fff;
    font-size: 26px;
}

.scene-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px; /* 减小间距 */
}

.scene-card p {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 0; /* 移除底部外边距 */
    flex-grow: 1;
}

.case-header h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 12px;
}

.case-header p {
    font-size: 16px;
    opacity: 0.9;
}

.case-content p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 24px;
}

.activity-list li {
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 15px;
    color: #333;
    display: flex;
    align-items: center;
}

.activity-list li::before {
    content: "●";
    color: #4facfe;
    margin-right: 12px;
}

.brand-card h4 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.brand-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.stat-row {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 42px;
    font-weight: 700;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: #666;
    margin-top: 8px;
}

.cta-section {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 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: #4facfe;
    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: #4facfe;
}

/* === 架构图图片容器样式（已整合到页面中） === */
.architecture-image-wrapper {
    position: relative;
    background: #fff;
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    margin-bottom: 40px;
}

.architecture-image-wrapper::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4facfe, #00f2fe);
    border-radius: 4px 4px 0 0;
}

.architecture-image-wrapper img {
    width: 100%;
    max-width: 100%;
    display: block;
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.architecture-image-wrapper img:hover {
    transform: scale(1.02);
}

/* 响应式优化：小屏下避免过窄留白 */
@media (max-width: 768px) {
    .architecture-image-wrapper {
        padding: 16px;
    }

    .architecture-image-wrapper img {
        border-radius: 12px;
    }
}