107 lines
2.2 KiB
CSS
107 lines
2.2 KiB
CSS
/* background.css - 动态渐变背景 */
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body {
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background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
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background-size: 400% 400%;
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animation: gradient 15s ease infinite;
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}
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@keyframes gradient {
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0% {
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background-position: 0% 50%;
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}
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50% {
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background-position: 100% 50%;
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}
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100% {
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background-position: 0% 50%;
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}
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}
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:root {
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--bg-yellow: #FFFDE7; /* 浅黄 */
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--bg-blue: #E3F2FD; /* 淡蓝 */
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}
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body {
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background: linear-gradient(180deg, var(--bg-yellow) 0%, var(--bg-blue) 100%);
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background-attachment: fixed; /* 固定背景，滚动时不移动 */
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}
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body {
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margin: 0;
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padding: 0;
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
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overflow: hidden;
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transition: background-color 0.5s ease;
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}
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/* Light Theme (Default) */
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[data-theme="light"] {
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background: linear-gradient(to bottom, #87CEEB, #B0E0E6);
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}
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/* Dark Theme */
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[data-theme="dark"] {
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background: linear-gradient(to bottom, #232526, #414345);
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}
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[data-theme="dark"] .snowflake {
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color: #999;
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}
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/* Winter Theme */
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[data-theme="winter"] {
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background: linear-gradient(to bottom, #a1c4fd, #c2e9fb);
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}
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[data-theme="winter"] .background-bottom {
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position: fixed;
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bottom: 0;
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left: 0;
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width: 100%;
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height: 100px;
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background: linear-gradient(to top, white, rgba(255, 255, 255, 0));
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z-index: -1;
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border-radius: 50% 50% 0 0 / 20px;
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box-shadow: 0 -10px 20px rgba(255, 255, 255, 0.5);
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}
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#snowflake-container {
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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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pointer-events: none;
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z-index: 0;
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}
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.snowflake {
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position: absolute;
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top: -10%;
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color: white;
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font-size: 20px;
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user-select: none;
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animation: fall linear infinite;
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}
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@keyframes fall {
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to {
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transform: translateY(105vh) rotate(360deg);
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}
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}
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#frost-overlay {
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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: url('https://www.transparenttextures.com/patterns/ice-age.png') repeat;
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opacity: 0;
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pointer-events: none;
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transition: opacity 0.5s ease-in-out;
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z-index: 100;
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}
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#frost-overlay.is-frosted {
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opacity: 0.3;
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} |