132 lines
3.0 KiB
CSS
132 lines
3.0 KiB
CSS
/* 背景样式文件 - 独立分离便于迁移 */
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/* 主背景渐变 */
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body {
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background: linear-gradient(135deg,
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#e8f5e8 0%,
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#f1f8e9 25%,
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#e8f5e8 50%,
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#c8e6c9 75%,
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#e8f5e8 100%);
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background-size: 400% 400%;
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animation: backgroundShift 15s ease-in-out infinite;
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position: relative;
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}
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/* 背景动画 */
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@keyframes backgroundShift {
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0%, 100% {
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background-position: 0% 50%;
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}
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25% {
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background-position: 100% 50%;
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}
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50% {
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background-position: 50% 100%;
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}
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75% {
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background-position: 50% 0%;
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}
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}
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/* 背景装饰元素 */
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body::before {
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content: '';
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position: fixed;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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background-image:
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radial-gradient(circle at 20% 20%, rgba(76, 175, 80, 0.1) 0%, transparent 50%),
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radial-gradient(circle at 80% 80%, rgba(129, 199, 132, 0.1) 0%, transparent 50%),
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radial-gradient(circle at 40% 60%, rgba(165, 214, 167, 0.08) 0%, transparent 50%);
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pointer-events: none;
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z-index: -1;
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animation: floatingBubbles 20s ease-in-out infinite;
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}
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@keyframes floatingBubbles {
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0%, 100% {
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transform: translateY(0px) rotate(0deg);
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opacity: 1;
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}
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33% {
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transform: translateY(-20px) rotate(120deg);
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opacity: 0.8;
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}
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66% {
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transform: translateY(10px) rotate(240deg);
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opacity: 0.9;
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}
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}
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/* 背景粒子效果 */
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body::after {
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content: '';
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position: fixed;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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background-image:
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radial-gradient(2px 2px at 20px 30px, rgba(76, 175, 80, 0.3), transparent),
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radial-gradient(2px 2px at 40px 70px, rgba(129, 199, 132, 0.2), transparent),
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radial-gradient(1px 1px at 90px 40px, rgba(165, 214, 167, 0.3), transparent),
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radial-gradient(1px 1px at 130px 80px, rgba(76, 175, 80, 0.2), transparent),
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radial-gradient(2px 2px at 160px 30px, rgba(129, 199, 132, 0.3), transparent);
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background-repeat: repeat;
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background-size: 200px 100px;
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pointer-events: none;
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z-index: -1;
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animation: particleFloat 25s linear infinite;
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}
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@keyframes particleFloat {
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0% {
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transform: translateY(0px);
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}
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100% {
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transform: translateY(-100px);
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}
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}
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/* 响应式背景调整 */
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@media (max-width: 768px) {
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body::after {
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background-size: 150px 75px;
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animation-duration: 20s;
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}
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body::before {
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animation-duration: 15s;
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}
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}
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@media (max-width: 480px) {
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body::after {
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background-size: 100px 50px;
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animation-duration: 15s;
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}
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body::before {
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animation-duration: 12s;
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}
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body {
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animation-duration: 12s;
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}
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}
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/* 高性能模式 - 减少动画 */
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@media (prefers-reduced-motion: reduce) {
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body,
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body::before,
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body::after {
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animation: none;
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}
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body {
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background: linear-gradient(135deg, #e8f5e8 0%, #f1f8e9 50%, #c8e6c9 100%);
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}
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} |