/* styles.css */
:root {
    --primary: #ff9bb3;
    --secondary: #f8c6d0;
    --accent: #ffc7d2;
    --text: #5d4037;
    --light: #fff9f5;
    --decor: #ffebee;
}

* {margin: 0;padding: 0;box-sizing: border-box;}
body {
    background: linear-gradient(135deg, var(--light), var(--decor));
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: var(--text);
    line-height: 1.8;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    font-family: 'Noto Serif SC', serif;
    overflow-x: hidden;
}
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}


.container {
    max-width: 1200px;
    width: 92%;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 30px;
    box-shadow: 0 25px 50px rgba(255, 155, 179, 0.15);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

/* 装饰元素 */
.decor {position: absolute;z-index: 0;opacity: 0.8;}
.decor-1 {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    top: -100px;
    left: -50px;
}
.decor-2 {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    bottom: -80px;
    right: -30px;
}
.decor-3 {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    top: 30%;
    right: 5%;
}

header {
    text-align: center;
    padding: 50px 20px 30px;
    position: relative;
    z-index: 1;
    background: linear-gradient(to right, rgba(255, 249, 245, 0.8), rgba(255, 238, 238, 0.8));
    border-bottom: 1px solid rgba(255, 155, 179, 0.2);
}
h1 {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 3.8rem;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: normal;
    letter-spacing: 3px;
    text-shadow: 0 4px 8px rgba(255, 155, 179, 0.2);
    position: relative;
    display: inline-block;
}
h1:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 25%;
    width: 50%;
    height: 4px;
    background: linear-gradient(to right, transparent, var(--primary), transparent);
    border-radius: 2px;
}
.subtitle {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 1.8rem;
    color: var(--primary);
    margin-top: 15px;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(255, 200, 210, 0.8);
    opacity: 0.8;
}

.content-wrapper {
    display: flex;
    flex-wrap: wrap;
    min-height: 500px;
    position: relative;
    z-index: 1;
}

.image-section {
    flex: 1;
    min-width: 350px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px 30px 30px;
    position: relative;
}
.image-frame {
    position: relative;
    max-width: 100%;
    max-height: 550px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(255, 155, 179, 0.1);
    transition: transform 0.6s ease;
    border: 5px solid white;
}
.featured-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
    filter: brightness(1.05) contrast(1.05);
}
.image-frame:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 155, 179, 0.1), rgba(248, 198, 208, 0.1));
    z-index: 1;
    border-radius: 15px;
    animation: borderGlow 6s infinite alternate;
}
@keyframes borderGlow {
    0% { box-shadow: 0 0 20px rgba(255, 155, 179, 0.3); }
    100% { box-shadow: 0 0 35px rgba(255, 155, 179, 0.5); }
}
.image-frame:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 40px 70px rgba(255, 155, 179, 0.2);
}
.image-frame:hover .featured-image {
    transform: scale(1.05);
}

.text-section {
    flex: 1;
    min-width: 350px;
    padding: 60px 50px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.message-container {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    padding: 50px;
    box-shadow: 0 15px 35px rgba(255, 249, 245, 0.7);
    border: 1px solid rgba(255, 155, 179, 0.15);
    position: relative;
    overflow: hidden;
}
.message-container:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--secondary), var(--primary));
}
.message {
    margin-bottom: 35px;
    position: relative;
    padding-left: 45px;
    font-size: 1.1rem;
    color: var(--text);
    line-height: 2;
    font-weight: 300;
}
.message:before {
    content: "✧";
    position: absolute;
    left: 0;
    top: 0px;
    color: var(--primary);
    font-size: 1.6rem;
    font-weight: bold;
}
.message:last-child {
    margin-bottom: 0;
}

.music-player {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.9);
    border-top: 1px solid rgba(255, 155, 179, 0.1);
    border-bottom: 1px solid rgba(255, 155, 179, 0.1);
    position: relative;
    z-index: 1;
}
.play-btn {
    width: 102px;
    height: 102px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(255, 155, 179, 0.4);
    transition: all 0.4s ease;
    position: relative;
    border: 2px solid white;
}
.play-btn:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 15px 35px rgba(255, 155, 179, 0.6);
}
.play-btn i {
    color: white;
    font-size: 36px;
    margin-left: 2px;
}
.play-btn::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid var(--primary);
    animation: pulse 2.5s infinite;
    opacity: 0.3;
}
@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.5); opacity: 0; }
}
.music-text {
    margin-left: 25px;
    color: var(--primary);
    font-size: 0.9rem;
    letter-spacing: 1.5px;
    font-weight: 400;
    font-family: 'Ma Shan Zheng', cursive;
    text-shadow: 0 1px 2px rgba(255, 155, 179, 0.3);
}

footer {
    text-align: center;
    padding: 35px 20px;
    color: var(--primary);
    font-size: 1.1rem;
    background: linear-gradient(to right, rgba(255, 249, 245, 0.8), rgba(255, 238, 238, 0.8));
    border-top: 1px solid rgba(255, 155, 179, 0.2);
    position: relative;
    z-index: 1;
    font-family: 'Ma Shan Zheng', cursive;
}
footer p {
    margin: 5px 0;
}

/* 响应式布局 */
@media (max-width: 900px) {
    .content-wrapper {flex-direction: column;}
    .image-section, .text-section {min-width: 100%;}
    .image-section {padding: 40px 20px 20px;}
    .text-section {padding: 40px 25px 20px;}
    h1 {font-size: 3rem;}
    .subtitle {font-size: 1.5rem;}
    .message {font-size: 1rem;}
}
@media (max-width: 600px) {
    h1 {font-size: 2.5rem;}
    .subtitle {font-size: 1.3rem;}
    .message {font-size: 1.0rem; padding-left: 35px;}
    .message-container {padding: 35px 25px;}
    .play-btn {width: 120px; height: 120px;}
    .play-btn i {font-size: 30px;}
    .music-text {margin-left: 15px; font-size: 0.8rem;}
}
@media (max-width: 480px) {
    h1 {font-size: 2.2rem;}
    .subtitle {font-size: 1.2rem;}
    .image-section, .text-section {padding: 30px 15px 15px;}
    .message-container {padding: 25px 15px;}
    .play-btn {width: 70px; height: 70px;}
    .play-btn i {font-size: 26px;}
}

/* 爱心粒子动画 */
.hearts-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}
.heart {
    position: absolute;
    color: var(--primary);
    font-size: 20px;
    opacity: 0;
    animation: floatHeart 6s ease-in-out infinite;
}
@keyframes floatHeart {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0.5);
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(-50px) scale(1.2);
    }
}