body {
    font-family: 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('https://img.freepik.com/free-vector/romantic-pink-hearts-pattern-background_53876-99015.jpg');
    background-size: cover;
    background-blend-mode: overlay;
    animation: gradientBG 15s ease infinite;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    background-color: rgba(255, 255, 255, 0.92);
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    padding: 60px;
    width: 90%;
    max-width: 900px;
    text-align: center;
    margin: 20px;
    animation: fadeIn 1s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    color: #e84393;
    font-size: 3.5em;  /* 增大标题字体 */
    margin-bottom: 30px;
    font-weight: 900;  /* 加粗 */
    text-shadow: 2px 2px 8px rgba(0,0,0,0.15);  /* 增强阴影 */
    letter-spacing: 2px;  /* 增加字间距 */
}

.domain {
    font-size: 4em;
    color: #ff0066;  /* 更鲜艳的红色 */
    font-weight: 900;
    margin: 40px 0;
    text-shadow: 0 0 8px rgba(255,255,255,0.8), 3px 3px 0 rgba(0,0,0,0.1);  /* 白色光晕+黑色阴影 */
    letter-spacing: 3px;
    animation: pulse 1.5s infinite;
    background: none;  /* 移除渐变背景 */
    -webkit-text-fill-color: initial;
    position: relative;
    padding: 10px 20px;
    display: inline-block;
}

.domain::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 3px solid #ff0066;
    border-radius: 10px;
    animation: borderPulse 2s infinite;
}

@keyframes borderPulse {
    0% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
    100% { opacity: 0.5; transform: scale(1); }
}

@keyframes glow {
    from { text-shadow: 0 0 10px #ff4081, 0 0 20px #ff4081; }
    to { text-shadow: 0 0 20px #ff4081, 0 0 30px #ff4081, 0 0 40px #ff4081; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.description {
    font-size: 1.5em;
    margin-bottom: 40px;
    font-weight: 600;
    line-height: 1.8;
}

.contact {
    background-color: #e84393;
    color: white;
    padding: 20px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.3em;
    display: inline-block;
    margin-top: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: none;
    cursor: pointer;
}

.contact:hover {
    background-color: #fd79a8;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.hearts {
    font-size: 2.5em;
    color: #fd79a8;
    margin: 30px 0;
    letter-spacing: 15px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.romantic-text {
    font-size: 1.2em;
    font-style: italic;
    color: #e84393;
    margin: 30px 0;
    font-weight: 600;
}

.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: white;
    padding: 15px 30px;
    border-radius: 5px;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
}

.demo-btn {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.2em;
    margin: 20px 0;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.demo-btn:hover {
    background-color: #45a049;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.romantic-btn {
    display: block;
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    color: white;
    padding: 18px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.4em;
    margin: 20px auto;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(255, 105, 140, 0.4);
    border: 2px solid white;
    position: relative;
    overflow: hidden;
    max-width: 400px;
}

.romantic-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 105, 140, 0.6);
    background: linear-gradient(45deg, #ff8e8e, #ff6b6b);
}

.romantic-btn::before {
    content: '❤';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.romantic-btn::after {
    content: '❤';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.music-control {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 100;
}

#musicBtn {
    background: #ff6b6b;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
    transition: all 0.3s;
}

#musicBtn:hover {
    background: #ff4081;
    transform: scale(1.05);
}