/* 装饰性背景图案 */
.pattern-dots {
    position: relative;
    overflow: hidden;
}

.pattern-dots::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    top: -100px;
    right: -100px;
    background-image: radial-gradient(var(--primary-lighter) 2px, transparent 2px);
    background-size: 20px 20px;
    opacity: 0.1;
    transform: rotate(15deg);
}

.pattern-grid {
    position: relative;
    overflow: hidden;
}

.pattern-grid::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    bottom: -150px;
    left: -150px;
    background-image: linear-gradient(var(--primary-lighter) 1px, transparent 1px),
                      linear-gradient(90deg, var(--primary-lighter) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.1;
    transform: rotate(-15deg);
}

/* 装饰性形状 */
.shape-circle {
    position: absolute;
    border-radius: 50%;
    background: var(--accent-light);
    opacity: 0.1;
}

.shape-circle.top-right {
    width: 200px;
    height: 200px;
    top: -100px;
    right: -100px;
}

.shape-circle.bottom-left {
    width: 150px;
    height: 150px;
    bottom: -75px;
    left: -75px;
}

/* 波浪装饰 */
.wave-divider {
    position: relative;
    height: 50px;
    overflow: hidden;
}

.wave-divider::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 100%;
    background: 
        radial-gradient(50% 100% at 50% 100%, var(--primary-lighter) 0%, transparent 100%);
    opacity: 0.1;
    transform: scale(2, 1);
}

/* 动态背景渐变 */
.gradient-bg {
    position: relative;
    overflow: hidden;
}

.gradient-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(120deg, 
        var(--primary-lighter) 0%,
        transparent 30%,
        transparent 70%,
        var(--accent-light) 100%);
    opacity: 0.1;
    z-index: -1;
}

/* 装饰性边框 */
.border-accent {
    position: relative;
}

.border-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent);
    opacity: 0.7;
}