/* 基础样式 */
:root {
    --gold-color: #FFD700;
    --bright-gold-color: #FFFACD;
    --dark-gold: #B8860B;
    --dark-blue-bg: #0a0e23; /* 深邃星空背景基色 */
    --light-blue-stars: #add8e6; /* 星星颜色 */
    --text-color: #ecf0f1;
    --panel-bg: rgba(20, 25, 50, 0.8);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --transition-speed: 0.3s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent; /* 移除移动端点击高亮 */
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    background-color: var(--dark-blue-bg);
    color: var(--text-color);
    overflow: hidden;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    background-color: var(--panel-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
    text-align: center;
    width: 100%;
    max-width: 500px;
    z-index: 10;
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.container.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

h1 {
    color: var(--gold-color);
    margin-bottom: 20px;
    text-shadow: 0 0 10px var(--gold-color);
    font-size: clamp(1.8rem, 5vw, 2.5rem);
}

p {
    margin-bottom: 25px;
    font-size: 1.1em;
    line-height: 1.6;
}

/* 文件上传按钮样式 */
input[type="file"] {
    display: block;
    margin: 0 auto 20px auto;
    padding: 10px;
    border: 2px dashed var(--gold-color);
    border-radius: 5px;
    background-color: rgba(255,255,255,0.1);
    color: var(--text-color);
    cursor: pointer;
    width: 100%;
    max-width: 300px;
}

input[type="file"]::file-selector-button {
    background-color: var(--gold-color);
    color: var(--dark-blue-bg);
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
    font-weight: bold;
}

/* 祈愿按钮样式 */
.wish-button {
    background: linear-gradient(145deg, var(--gold-color), var(--dark-gold));
    color: var(--dark-blue-bg);
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px var(--shadow-color), 0 0 10px var(--gold-color) inset;
    margin-bottom: 20px;
}

.wish-button:hover {
    background: linear-gradient(145deg, var(--bright-gold-color), var(--gold-color));
    box-shadow: 0 8px 20px var(--shadow-color), 0 0 15px var(--bright-gold-color) inset, 0 0 20px var(--gold-color);
    transform: translateY(-2px);
}

.wish-button:active {
    transform: translateY(1px) scale(0.98);
    box-shadow: 0 2px 10px var(--shadow-color), 0 0 5px var(--gold-color) inset;
}

.wish-button:disabled {
    background: #555;
    color: #999;
    cursor: not-allowed;
    box-shadow: none;
}

/* 动画覆盖层 */
.animation-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    background: radial-gradient(ellipse at center, rgba(10,14,35,0.8) 0%, rgba(10,14,35,1) 100%);
    opacity: 0;
    transition: opacity 0.5s ease-in;
}

.animation-overlay.active {
    display: flex;
    opacity: 1;
}

/* 星空背景 */
.starry-sky {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.star {
    position: absolute;
    background-color: var(--light-blue-stars);
    border-radius: 50%;
    animation: twinkle 2s infinite ease-in-out;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* 召唤传送门 */
.summoning-portal {
    width: 300px;
    height: 300px;
    position: absolute;
    opacity: 0;
    transform: scale(0.5);
    border: 3px solid rgba(255, 215, 0, 0.5);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.3), inset 0 0 20px rgba(255, 215, 0, 0.2);
    animation: portal-appear 2s 0.5s ease-out forwards, portal-pulse 3s 2.5s infinite ease-in-out;
}

@keyframes portal-appear {
    to { opacity: 0.7; transform: scale(1); }
}

@keyframes portal-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 20px rgba(255, 215, 0, 0.3), inset 0 0 20px rgba(255, 215, 0, 0.2); }
    50% { transform: scale(1.05); box-shadow: 0 0 30px var(--gold-color), inset 0 0 30px rgba(255, 215, 0, 0.4); }
}

/* 流星效果 */
.shooting-star {
    position: absolute;
    width: 150px; /* 尾巴长度 */
    height: 3px;
    background: linear-gradient(to left, transparent, var(--bright-gold-color));
    border-radius: 50%;
    opacity: 0;
    transform: rotate(-45deg); /* 下降角度 */
    animation: shoot 1.5s 1s ease-in forwards; /* 在传送门出现后延迟开始 */
}

.shooting-star::before { /* 流星头部 */
    content: '';
    position: absolute;
    right: -2px;
    top: -1.5px;
    width: 6px;
    height: 6px;
    background-color: var(--bright-gold-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--bright-gold-color), 0 0 20px var(--gold-color);
}

@keyframes shoot {
    0% { opacity: 1; transform: translate(100vw, -100vh) rotate(-45deg) scaleY(0.5); } /* 从屏幕右上角开始 */
    50% { opacity: 1; transform: translate(calc(-50vw + 75px), calc(50vh - 1.5px)) rotate(-45deg) scaleY(1); } /* 穿过中心 */
    100% { opacity: 0; transform: translate(calc(-100vw + 150px), calc(100vh - 3px)) rotate(-45deg) scaleY(0.5); } /* 在屏幕左下角结束 */
}

/* 能量爆发效果 */
.energy-burst {
    width: 50px;
    height: 50px;
    background-color: var(--bright-gold-color);
    border-radius: 50%;
    position: absolute;
    opacity: 0;
    transform: scale(0);
    box-shadow: 0 0 50px 30px var(--bright-gold-color), 0 0 80px 60px var(--gold-color);
    animation: burst 1s 2.5s ease-out forwards; /* 在流星击中后 */
}

@keyframes burst {
    0% { transform: scale(0); opacity: 1; }
    50% { transform: scale(15); opacity: 0.8; } /* 更大的缩放以获得更大的冲击效果 */
    100% { transform: scale(12); opacity: 0; }
}

/* 卡片展示区域 */
.card-reveal-area {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: absolute;
    opacity: 0;
    animation: show-card 1.5s 3.2s forwards; /* 在爆发后 */
}

@keyframes show-card {
    0% { opacity: 0; transform: scale(0.5) rotateY(180deg); }
    60% { opacity: 1; transform: scale(1.1) rotateY(0deg); }
    100% { opacity: 1; transform: scale(1) rotateY(0deg); }
}

.card-reveal-area h2 {
    color: var(--gold-color);
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 0 0 15px var(--gold-color), 0 0 5px var(--bright-gold-color);
    animation: text-glow 2s infinite alternate;
}

@keyframes text-glow {
    from { text-shadow: 0 0 10px var(--gold-color), 0 0 20px var(--gold-color); }
    to   { text-shadow: 0 0 20px var(--bright-gold-color), 0 0 30px var(--gold-color), 0 0 40px var(--gold-color); }
}

#revealedCardDisplay {
    max-width: 80vw;
    max-height: 60vh;
    border: 8px solid transparent;
    border-image: linear-gradient(160deg, var(--gold-color), var(--dark-gold), var(--gold-color)) 1;
    box-shadow: 0 0 25px 5px var(--gold-color), 0 0 45px 15px rgba(255, 215, 0, 0.7), inset 0 0 15px rgba(255, 250, 205, 0.5);
    background-color: #000;
    border-radius: 15px;
    object-fit: contain; /* 确保图像适合 */
}

/* 浮动粒子效果 */
.particle-container {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none; /* 使它们不干扰点击 */
    overflow: hidden;
}

.particle {
    position: absolute;
    background-color: rgba(255, 215, 0, 0.7);
    border-radius: 50%;
    animation: float 10s infinite ease-in-out;
    opacity: 0;
}

@keyframes float {
    0% { transform: translateY(0) translateX(0) scale(0.5); opacity: 0; }
    25% { opacity: 1; }
    50% { transform: translateY(-20vh) translateX(5vw) scale(1); opacity: 0.7; }
    75% { opacity: 1; }
    100% { transform: translateY(20vh) translateX(-5vw) scale(0.5); opacity: 0; }
}

/* 按钮样式 */
.back-link, .retry-button {
    display: inline-block;
    margin-top: 30px;
    color: var(--gold-color);
    text-decoration: none;
    font-size: 1em;
    padding: 10px 20px;
    border: 2px solid var(--gold-color);
    border-radius: 8px;
    transition: background-color 0.3s, color 0.3s, box-shadow 0.3s;
    font-weight: bold;
    background-color: rgba(255, 215, 0, 0.1);
}

.back-link:hover, .retry-button:hover {
    background-color: var(--gold-color);
    color: var(--dark-blue-bg);
    box-shadow: 0 0 15px var(--gold-color);
}

.action-buttons {
    display: none; /* 初始隐藏，动画后显示 */
    margin-top: 20px;
    animation: fadeInButtons 1s 4.5s forwards;
    opacity: 0;
}

@keyframes fadeInButtons { 
    to { opacity: 1; } 
}

/* 设置面板样式 */
.settings-panel {
    position: fixed;
    top: 10px;
    right: 10px;
    background-color: var(--panel-bg);
    border-radius: 10px;
    padding: 15px;
    z-index: 100;
    box-shadow: 0 0 20px var(--shadow-color);
    display: none;
}

.settings-panel.active {
    display: block;
}

.settings-toggle {
    position: fixed;
    top: 10px;
    right: 10px;
    background-color: var(--panel-bg);
    color: var(--gold-color);
    border: 1px solid var(--gold-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 101;
    font-size: 1.2em;
    box-shadow: 0 0 10px var(--shadow-color);
}

.setting-item {
    margin-bottom: 10px;
}

.setting-item label {
    display: block;
    margin-bottom: 5px;
    color: var(--gold-color);
}

.setting-item select, .setting-item input {
    width: 100%;
    padding: 5px;
    border-radius: 5px;
    border: 1px solid var(--gold-color);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 20px;
    }
    
    .summoning-portal {
        width: 250px;
        height: 250px;
    }
    
    .card-reveal-area h2 {
        font-size: 2em;
    }
    
    #revealedCardDisplay {
        max-width: 90vw;
        max-height: 50vh;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 15px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    p {
        font-size: 1em;
    }
    
    .wish-button {
        padding: 12px 24px;
        font-size: 1.1em;
    }
    
    .summoning-portal {
        width: 200px;
        height: 200px;
    }
    
    .shooting-star {
        width: 100px;
    }
    
    .card-reveal-area h2 {
        font-size: 1.8em;
    }
    
    .back-link, .retry-button {
        padding: 8px 16px;
        font-size: 0.9em;
    }
}