:root {
     --primary-color: #0049ff;
     --secondary-color: #1294ff;
     --accent-color: #ff4848;
     --text-color: #2d3436;
     --light-text: #636e72;
     --bg-color: #f9f9f9;
 }
 
 
 * {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
 }
 
 body {
     font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
     color: var(--text-color);
     background-color: var(--bg-color);
     overflow-x: hidden;
     min-height: 100vh;
     display: flex;
     flex-direction: column;
 }
 
 /* 背景动画 */
 .bg-animation {
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
     z-index: -1;
     overflow: hidden;
 }
 
 .bg-bubbles {
     position: absolute;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
 }
 
 .bg-bubbles li {
     position: absolute;
     list-style: none;
     display: block;
     width: 40px;
     height: 40px;
     background-color: rgba(108, 92, 231, 0.1);
     bottom: -160px;
     animation: square 25s infinite;
     transition-timing-function: linear;
     border-radius: 5px;
 }
 
 .bg-bubbles li:nth-child(1) {
     left: 10%;
     width: 80px;
     height: 80px;
     animation-delay: 0s;
     animation-duration: 17s;
 }
 
 .bg-bubbles li:nth-child(2) {
     left: 20%;
     width: 20px;
     height: 20px;
     animation-delay: 2s;
     animation-duration: 22s;
 }
 
 .bg-bubbles li:nth-child(3) {
     left: 25%;
     animation-delay: 4s;
 }
 
 .bg-bubbles li:nth-child(4) {
     left: 40%;
     width: 60px;
     height: 60px;
     animation-delay: 0s;
     animation-duration: 18s;
     background-color: rgba(253, 121, 168, 0.1);
 }
 
 .bg-bubbles li:nth-child(5) {
     left: 70%;
 }
 
 .bg-bubbles li:nth-child(6) {
     left: 80%;
     width: 120px;
     height: 120px;
     animation-delay: 3s;
     background-color: rgba(162, 155, 254, 0.1);
 }
 
 .bg-bubbles li:nth-child(7) {
     left: 32%;
     width: 160px;
     height: 160px;
     animation-delay: 7s;
 }
 
 .bg-bubbles li:nth-child(8) {
     left: 55%;
     width: 20px;
     height: 20px;
     animation-delay: 15s;
     animation-duration: 30s;
 }
 
 .bg-bubbles li:nth-child(9) {
     left: 25%;
     width: 10px;
     height: 10px;
     animation-delay: 2s;
     animation-duration: 25s;
     background-color: rgba(253, 121, 168, 0.1);
 }
 
 .bg-bubbles li:nth-child(10) {
     left: 90%;
     width: 60px;
     height: 60px;
     animation-delay: 11s;
 }
 
 @keyframes square {
     0% {
         transform: translateY(0) rotate(0deg);
         opacity: 1;
     }
     100% {
         transform: translateY(-1000px) rotate(720deg);
         opacity: 0;
     }
 }
 
 /* 主要内容 */
 .container {
     max-width: 1200px;
     margin: 0 auto;
     padding: 0 20px;
     flex: 1;
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     text-align: center;
     position: relative;
     z-index: 1;
 }
 
 .logo {
     
     margin-bottom: 30px;
     animation: pulse 2s infinite alternate;
 }
 
 @keyframes pulse {
     from {
         transform: scale(1);
         opacity: 0.8;
     }
     to {
         transform: scale(1.05);
         opacity: 1;
     }
 }
 
 h1 {
     font-size: 3.5rem;
     margin-bottom: 20px;
     background: linear-gradient(135deg, #18b8ff, #ff2727);
     -webkit-background-clip: text;
     background-clip: text;
     color: transparent;
     animation: fadeInUp 1s ease-out;
 }
 
 .subtitle {
     font-size: 1.5rem;
     color: var(--light-text);
     margin-bottom: 40px;
     max-width: 700px;
     animation: fadeInUp 1s ease-out 0.3s both;
 }
 
 .btn-group {
     display: flex;
     gap: 20px;
     margin-bottom: 50px;
     animation: fadeInUp 1s ease-out 0.6s both;
 }
 
 .btn {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     padding: 12px 30px;
     border-radius: 50px;
     font-size: 1.1rem;
     font-weight: 500;
     text-decoration: none;
     transition: all 0.3s ease;
     position: relative;
     overflow: hidden;
 }
 
 .btn-primary {
     background-color: var(--primary-color);
     color: white;
     box-shadow: 0 4px 15px rgba(108, 92, 231, 0.4);
 }
 
 .btn-primary:hover {
     transform: translateY(-3px);
     box-shadow: 0 8px 25px rgba(108, 92, 231, 0.5);
 }
 
 .btn-primary:active {
     transform: translateY(0);
 }
 
 .btn-secondary {
     background-color: white;
     color: var(--primary-color);
     border: 2px solid var(--primary-color);
 }
 
 .btn-secondary:hover {
     background-color: var(--primary-color);
     color: white;
     transform: translateY(-3px);
     box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
 }
 
 .btn .icon {
     margin-right: 8px;
     font-size: 1.2rem;
 }
 
 /* 社交图标 */
 .social-links {
     display: flex;
     gap: 20px;
     margin-top: 30px;
     animation: fadeInUp 1s ease-out 0.9s both;
 }
 
 .social-link {
     width: 50px;
     height: 50px;
     border-radius: 50%;
     background-color: white;
     color: var(--primary-color);
     display: flex;
     align-items: center;
     justify-content: center;
     font-size: 1.5rem;
     box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
     transition: all 0.3s ease;
 }
 
 .social-link:hover {
     transform: translateY(-5px) scale(1.1);
     box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
     color: var(--accent-color);
 }
 
 /* 浮动元素 */
 .floating-elements {
     position: absolute;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
     pointer-events: none;
     z-index: -1;
 }
 
 .floating-element {
     position: absolute;
     opacity: 0.6;
     animation: float 6s infinite ease-in-out;
 }
 
 .floating-element:nth-child(1) {
     top: 20%;
     left: 10%;
     width: 30px;
     height: 30px;
     background-color: var(--accent-color);
     border-radius: 50%;
     animation-delay: 0s;
 }
 
 .floating-element:nth-child(2) {
     top: 60%;
     left: 80%;
     width: 40px;
     height: 40px;
     background-color: var(--primary-color);
     border-radius: 50%;
     animation-delay: 1s;
 }
 
 .floating-element:nth-child(3) {
     top: 30%;
     left: 85%;
     width: 25px;
     height: 25px;
     background-color: var(--secondary-color);
     border-radius: 50%;
     animation-delay: 2s;
 }
 
 .floating-element:nth-child(4) {
     top: 70%;
     left: 15%;
     width: 50px;
     height: 50px;
     background-color: var(--accent-color);
     border-radius: 50%;
     animation-delay: 3s;
 }
 
 @keyframes float {
     0%, 100% {
         transform: translateY(0) rotate(0deg);
     }
     50% {
         transform: translateY(-20px) rotate(10deg);
     }
 }
 
 /* 文字动画 */
 @keyframes fadeInUp {
     from {
         opacity: 0;
         transform: translateY(20px);
     }
     to {
         opacity: 1;
         transform: translateY(0);
     }
 }
 
 /* 响应式设计 */
 @media (max-width: 768px) {
     h1 {
         font-size: 2.5rem;
     }
     
     .subtitle {
         font-size: 1.2rem;
     }
     
     .btn-group {
         flex-direction: column;
         gap: 15px;
     }
     
     .btn {
         width: 100%;
         max-width: 300px;
     }
 }
 
 /* 鼠标跟随效果 */
 .cursor-follower {
     position: fixed;
     width: 20px;
     height: 20px;
     background-color: rgba(108, 92, 231, 0.3);
     border-radius: 50%;
     pointer-events: none;
     transform: translate(-50%, -50%);
     transition: transform 0.1s ease;
     z-index: 9999;
     mix-blend-mode: multiply;
 }