/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #ffd1dc 0%, #ffb6c1 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

/* 漂浮的爱心表情 */
.floating-emoji {
    position: absolute;
    font-size: 24px;
    opacity: 0;
    animation: float-up 3s ease-in-out forwards;
}

@keyframes float-up {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateY(-100px);
        opacity: 0;
    }
}

/* 跳动爱心动画 */
@keyframes shine {
    0% {
        opacity: 0.5;
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1.05);
    }
}

/* 自定义弹出框样式 */
.custom-alert {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 182, 193, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.alert-content {
    background-color: white;
    border-radius: 15px;
    padding: 25px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(233, 30, 99, 0.3);
    text-align: center;
    transform: scale(0.8);
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

.alert-content.show {
    transform: scale(1);
}

.alert-content::before {
    content: '💘';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 40px;
    opacity: 0.2;
}

.alert-message {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 20px;
    display: block;
    line-height: 1.6;
}

.close-alert {
    background-color: #e91e63;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(233, 30, 99, 0.3);
}

.close-alert:hover {
    background-color: #c2185b;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(233, 30, 99, 0.4);
}

.close-alert:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(233, 30, 99, 0.3);
}

.container {
    width: 100%;
    max-width: 600px;
    padding: 20px;
}

/* 卡片样式 */
.love-card {
    background-color: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(255, 105, 180, 0.3);
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: float 3s ease-in-out infinite;
}

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

.love-card::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    width: 100px;
    height: 100px;
    background-color: rgba(255, 182, 193, 0.2);
    border-radius: 50%;
}

.love-card::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 100px;
    height: 100px;
    background-color: rgba(255, 182, 193, 0.2);
    border-radius: 50%;
}

/* 标题样式 */
 h1 {
    color: #e91e63;
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(233, 30, 99, 0.2);
}

/* 跳动爱心样式 */
.jumping-heart {
    font-size: 60px;
    margin: 0 5px;
    animation: jump 0.8s infinite alternate;
    color: #e91e63;
    text-shadow: 0 0 10px rgba(233, 30, 99, 0.5);
    vertical-align: middle;
}

/* 跳跃动画 */
@keyframes jump {
    0% {
        transform: translateY(0) scale(0.95);
    }
    100% {
        transform: translateY(-20px) scale(1.05);
    }
}

/* 脉动放大缩小动画 */
@keyframes pulse {
    0%, 100% {
        transform: scale(0.95);
    }
    50% {
        transform: scale(1.15);
    }
}

/* 消息样式 */
.message {
    color: #333;
    font-size: 1.2rem;
    line-height: 1.6;
    margin: 20px 0;
    padding: 0 20px;
}

/* 按钮样式 */
.love-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

button {
    background-color: #e91e63;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(233, 30, 99, 0.3);
}

button:hover {
    background-color: #c2185b;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(233, 30, 99, 0.4);
}

button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(233, 30, 99, 0.3);
}

/* 装饰元素 */
.love-card .decor {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: rgba(255, 182, 193, 0.3);
    border-radius: 50%;
}

/* 响应式设计 */
/* 大屏幕设备 */
@media (min-width: 1200px) {
    .love-card {
        padding: 50px;
        max-width: 600px;
        margin: 0 auto;
    }

    h1 {
        font-size: 3rem;
    }

    .jumping-heart {
        font-size: 70px;
    }

    .jumping-heart {
        font-size: 70px;
    }

    .message {
        font-size: 1.4rem;
    }

    button {
        padding: 15px 30px;
        font-size: 1.1rem;
    }
}

/* 中等屏幕设备 */
@media (max-width: 1199px) and (min-width: 768px) {
    .love-card {
        padding: 40px;
        max-width: 500px;
        margin: 0 auto;
    }

    h1 {
        font-size: 2.5rem;
    }

    .jumping-heart {
        font-size: 50px;
    }

    
}

/* 小屏幕设备 */
@media (max-width: 767px) and (min-width: 501px) {
    .love-card {
        padding: 30px;
        max-width: 400px;
        margin: 0 auto;
    }

    h1 {
        font-size: 2.2rem;
    }

    .jumping-heart {
        font-size: 40px;
    }

    .message {
        font-size: 1.1rem;
    }

    button {
        padding: 12px 24px;
        font-size: 1rem;
    }
}

/* 移动设备 */
@media (max-width: 500px) {
    .love-card {
        padding: 20px;
        max-width: 300px;
        margin: 0 auto;
    }

    h1 {
        font-size: 1.8rem;
    }

    .jumping-heart {
        font-size: 35px;
    }

    .message {
        font-size: 1rem;
        padding: 0 10px;
    }

    .love-buttons {
        flex-direction: column;
        gap: 15px;
    }

    button {
        padding: 10px 20px;
        font-size: 0.9rem;
        width: 100%;
    }

    /* 调整弹出框样式 */
    .alert-content {
        padding: 20px 15px;
    }

    .alert-message {
        font-size: 1rem;
    }

    .close-alert {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
}