/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    color: #fff;
    overflow: hidden;
    background-color: #000;
    height: 100vh;
    width: 100vw;
    position: relative;
}

/* 星空背景 */
.starry-sky-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#starry-sky {
    width: 100%;
    height: 100%;
    display: block;
}

/* 内容容器 */
.content-container {
    position: relative;
    z-index: 10;
    height: 100vh;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.main-content {
    text-align: center;
    max-width: 800px;
    width: 100%;
    padding: 40px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: transform 0.8s ease, opacity 0.8s ease;
}

/* 生日模式下允许滚动 */
#birthday-container {
    height: auto;
    max-height: 100vh;
    overflow-y: auto;
    max-width: 100%;
    width: 100%;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.3) rgba(0, 0, 0, 0.2);
    scroll-snap-type: y mandatory;
    background-color: transparent;
    backdrop-filter: none;
    box-shadow: none;
    border: none;
}

#birthday-container::-webkit-scrollbar {
    width: 8px;
}

#birthday-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

#birthday-container::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
}

/* 全屏部分样式 */
.fullscreen-section {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    scroll-snap-align: start;
    position: relative;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

#greeting-section {
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), rgba(76, 0, 130, 0.5));
}

#love-tree-section {
    background: linear-gradient(to bottom, rgba(76, 0, 130, 0.5), rgba(148, 0, 211, 0.5));
}

#wishes-section {
    background: linear-gradient(to bottom, rgba(148, 0, 211, 0.5), rgba(255, 0, 255, 0.5));
}

#love-letter-section {
    background: linear-gradient(to bottom, rgba(255, 0, 255, 0.5), rgba(0, 0, 0, 0.7));
}

/* 标题样式 */
.title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

.birthday-title {
    margin-bottom: 20px;
}

.section-title {
    font-size: 1.8rem;
    margin: 30px 0 20px;
    color: #ff7eb3;
    text-shadow: 0 0 8px rgba(255, 126, 179, 0.5);
}

/* 倒计时样式 */
.countdown-timer {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.time-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.time-value {
    font-size: 3.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, #6b73ff 0%, #ff7eb3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
    display: block;
    min-width: 80px;
    position: relative;
}

.time-value:after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    position: absolute;
    bottom: 0;
}

.time-label {
    font-size: 1rem;
    margin-top: 10px;
    color: #ccc;
}

.love-message {
    font-size: 1.2rem;
    font-family: 'Dancing Script', cursive;
    margin-top: 20px;
    opacity: 0.9;
}

/* 生日祝福样式 */
.birthday-message {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    max-width: 800px;
    width: 100%;
    margin: 20px auto;
}

.large-text {
    font-size: 2rem;
    font-family: 'Dancing Script', cursive;
    margin-bottom: 20px;
    color: #ff7eb3;
}

.message-content {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    text-align: left;
}

.message-signature {
    font-family: 'Dancing Script', cursive;
    font-size: 1.5rem;
    text-align: right;
    margin-top: 20px;
}

/* 漂浮爱心 */
.floating-hearts {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: -1;
}

/* 显示隐藏 */
.hidden {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

/* 音乐播放器 */
.music-player {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 100;
}

.music-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.music-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.music-icon {
    display: inline-block;
    animation: rotate 3s linear infinite;
}

/* 烟花容器 */
.fireworks-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

#fireworks-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* 礼物盒样式 */
.gift-section {
    margin: 30px auto;
    max-width: 200px;
    perspective: 1000px;
    cursor: pointer;
    transition: all 0.5s ease;
}

.gift-box {
    position: relative;
    width: 200px;
    height: 200px;
    transform-style: preserve-3d;
    animation: giftFloat 3s ease-in-out infinite;
}

.gift-box-body {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #ff7eb3, #ff758c);
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.gift-lid {
    position: absolute;
    width: 110%;
    height: 30px;
    background: linear-gradient(135deg, #ff7eb3, #ff758c);
    top: -30px;
    left: -5%;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.5s ease;
    transform-origin: bottom;
}

.gift-ribbon {
    position: absolute;
    width: 30px;
    height: 100%;
    background: #fff;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.gift-ribbon:before {
    content: '';
    position: absolute;
    width: 30px;
    height: 100%;
    background: #fff;
    transform: rotate(90deg);
    top: 0;
    left: 0;
}

.gift-tag {
    position: absolute;
    bottom: -30px;
    width: 100%;
    text-align: center;
    color: #fff;
    font-size: 1rem;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.gift-box.opened .gift-lid {
    transform: rotateX(-80deg);
}

.gift-section.opened {
    transform: scale(0);
    opacity: 0;
}

/* 礼物内容区域 */
.birthday-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 1s ease;
}

.birthday-content.visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
    max-height: 5000px;
}

/* 互动爱心树 */
.love-tree-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.tree-instruction {
    color: #ccc;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

#love-tree {
    max-width: 90%;
    height: auto;
    max-height: 60vh;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin: 0 auto;
    display: block;
}

/* 互动祝福卡片 */
.wishes-container {
    width: 100%;
    max-width: 800px;
}

.wishes-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin: 30px 0;
}

.wish-card {
    width: 200px;
    height: 150px;
    perspective: 1000px;
    cursor: pointer;
}

.wish-card-front, .wish-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.6s;
    padding: 20px;
    text-align: center;
}

.wish-card-front {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    font-size: 1.2rem;
}

.wish-card-back {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    transform: rotateY(180deg);
}

.wish-card.flipped .wish-card-front {
    transform: rotateY(180deg);
}

.wish-card.flipped .wish-card-back {
    transform: rotateY(0deg);
}

/* 心愿许愿区 - 优化 */
.wish-maker {
    width: 100%;
    max-width: 800px;
    margin-top: 30px;
}

.cake-container {
    margin: 30px auto;
    width: 150px;
    height: 200px;  /* 增加高度容纳提示语 */
    position: relative;
}

.cake {
    width: 150px;
    height: 80px;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    border-radius: 10px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.cake:before {
    content: '';
    position: absolute;
    width: 100%;
    height: 20px;
    background: rgba(255, 255, 255, 0.3);
    top: 20px;
    border-radius: 10px;
}

.candle {
    position: absolute;
    width: 10px;
    height: 30px;
    background: #fff;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 5px;
}

.flame {
    position: absolute;
    width: 15px;
    height: 30px;
    background: #ff7800;
    border-radius: 50% 50% 20% 20%;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    filter: blur(3px);
    animation: flicker 0.5s ease-in-out infinite alternate;
}

/* 许愿结果样式 - 新增 */
.wish-result {
    position: absolute;
    width: 200px;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    margin-top: 20px;
    opacity: 0;
    transition: all 0.8s ease;
}

.wish-success {
    background: linear-gradient(135deg, #ffb347, #ffcc33);
    color: #fff;
    padding: 15px;
    border-radius: 15px;
    font-size: 1.2rem;
    box-shadow: 0 5px 20px rgba(255, 204, 51, 0.4);
    animation: appear 0.8s ease forwards, float 3s ease-in-out infinite;
    text-shadow: 0 2px 3px rgba(0, 0, 0, 0.2);
}

@keyframes appear {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.wish-button {
    padding: 12px 25px;
    background: #ff7eb3;
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(255, 126, 179, 0.3);
}

.wish-button:hover {
    background: #ff5ba7;
    transform: translateY(-3px);
}

.wish-button:active {
    transform: translateY(0);
}

.wish-button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 爱的告白 */
.love-letter {
    width: 100%;
    max-width: 800px;
}

.letter-content {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 15px;
    text-align: left;
    line-height: 1.8;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    max-height: 60vh;
    overflow-y: auto;
}

.letter-content p {
    margin-bottom: 15px;
}

.letter-content .signature {
    font-family: 'Dancing Script', cursive;
    text-align: right;
    font-size: 1.5rem;
    margin-top: 20px;
}

/* 动画效果 */
@keyframes glow {
    from {
        text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 15px #ff7eb3, 0 0 20px #ff7eb3;
    }
    to {
        text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #ff7eb3, 0 0 40px #ff7eb3;
    }
}

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

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes giftFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

@keyframes flicker {
    0%, 100% {
        opacity: 1;
        height: 30px;
    }
    50% {
        opacity: 0.8;
        height: 25px;
    }
}

/* 心跳效果 */
.heartbeat {
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.1);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.1);
    }
    70% {
        transform: scale(1);
    }
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }
    
    .countdown-timer {
        gap: 10px;
    }
    
    .time-value {
        font-size: 2.5rem;
        min-width: 60px;
    }
    
    .time-label {
        font-size: 0.8rem;
    }
    
    .main-content {
        padding: 25px;
    }
    
    .large-text {
        font-size: 1.6rem;
    }
    
    .message-content {
        font-size: 1rem;
    }
    
    .message-signature {
        font-size: 1.3rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .wish-card {
        width: 150px;
        height: 120px;
    }
}

@media screen and (max-width: 480px) {
    .title {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }
    
    .countdown-timer {
        gap: 5px;
    }
    
    .time-value {
        font-size: 2rem;
        min-width: 50px;
    }
    
    .main-content {
        padding: 20px;
    }
    
    .love-message {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .gift-box {
        width: 150px;
        height: 150px;
    }
    
    .wish-card {
        width: 140px;
        height: 110px;
    }
    
    .wish-success {
        font-size: 1rem;
        padding: 10px;
    }
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    z-index: 100;
    opacity: 0; /* 默认不可见 */
    visibility: hidden; /* 默认隐藏 */
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
    pointer-events: none; /* 默认不可点击 */
}

/* 滚动指示器可见状态 */
.scroll-indicator-visible {
    opacity: 0.7;
    visibility: visible;
    pointer-events: auto;
}

.scroll-indicator:hover {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.scroll-indicator:before {
    content: '';
    width: 12px;
    height: 12px;
    border-right: 3px solid #fff;
    border-bottom: 3px solid #fff;
    transform: rotate(45deg) translateY(-4px);
    animation: arrow-down 1.5s infinite;
}

.scroll-indicator:after {
    content: '向下滑动';
    position: absolute;
    bottom: -25px;
    font-size: 12px;
    color: #fff;
    opacity: 0;
    transition: opacity 0.3s ease;
    white-space: nowrap;
}

.scroll-indicator:hover:after {
    opacity: 0.8;
}

@keyframes arrow-down {
    0% {
        transform: rotate(45deg) translateY(-4px);
        opacity: 0.5;
    }
    50% {
        transform: rotate(45deg) translateY(2px);
        opacity: 1;
    }
    100% {
        transform: rotate(45deg) translateY(-4px);
        opacity: 0.5;
    }
}

/* 生日提示样式 */
.birthday-reminder {
    margin-top: 30px;
    padding: 15px 20px;
    background-color: rgba(255, 126, 179, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 126, 179, 0.3);
    animation: gentle-pulse 3s infinite alternate;
    backdrop-filter: blur(5px);
    transition: all 0.5s ease;
}

/* 生日即将到来时的特殊效果 */
.birthday-reminder.coming-soon {
    background-color: rgba(255, 126, 179, 0.3);
    border: 1px solid rgba(255, 126, 179, 0.6);
    animation: excited-pulse 1.5s infinite alternate;
    transform: scale(1.05);
}

.coming-soon .reminder-icon {
    animation: excited-float 1s ease-in-out infinite;
}

.coming-soon .reminder-text {
    font-weight: 700;
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.coming-soon .reminder-text strong {
    color: #ffff00;
    text-decoration: underline;
    cursor: pointer;
}

.reminder-icon {
    font-size: 1.8rem;
    margin-right: 15px;
    animation: float-icon 2s ease-in-out infinite;
    display: inline-block;
}

.reminder-text {
    font-size: 1.1rem;
    color: #fff;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
    font-weight: 500;
    letter-spacing: 0.5px;
}

@keyframes gentle-pulse {
    0% {
        box-shadow: 0 0 10px rgba(255, 126, 179, 0.2);
    }
    100% {
        box-shadow: 0 0 20px rgba(255, 126, 179, 0.4);
    }
}

@keyframes excited-pulse {
    0% {
        box-shadow: 0 0 15px rgba(255, 126, 179, 0.4);
    }
    100% {
        box-shadow: 0 0 30px rgba(255, 126, 179, 0.7);
    }
}

@keyframes float-icon {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

@keyframes excited-float {
    0%, 100% {
        transform: translateY(0) rotate(-5deg);
    }
    50% {
        transform: translateY(-8px) rotate(5deg);
    }
}