/* style.css */
/* 
 * 情侣纪念网站样式表
 * 包含日间/夜间主题支持和优化的浪漫幻效果
 */

/* ================= 基础样式 ================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

/* ================= 主体样式 ================= */
body {
    font-family: 'Microsoft YaHei', 'Heiti SC', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    padding-top: env(safe-area-inset-top); /* 适配刘海屏 */
    padding-bottom: env(safe-area-inset-bottom);
    transition: background 0.8s ease, color 0.5s ease;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 50%, #a18cd1 100%);
    position: relative;
    overflow-x: hidden;
}

body.theme-night {
    background: linear-gradient(135deg, #2c3e50 0%, #4a6491 50%, #1a1a2e 100%);
    color: #f0f0f0;
}

body.wechat-browser {
    /* 微信浏览器特殊样式 */
    -webkit-overflow-scrolling: touch;
}

body.mobile-device {
    /* 移动设备通用样式 */
    font-size: 16px;
}

/* 浪漫背景容器 */
#romantic-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* 粒子爱心背景 */
#heart-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* 点击爱心爆炸效果 */
.click-explosion {
    position: fixed;
    pointer-events: none;
    z-index: 100;
    transform: translateZ(0); /* 强制硬件加速 */
    -webkit-transform: translateZ(0);
}

/* ================= 头部区域 ================= */
.header {
    text-align: center;
    padding: 1rem 0;
    position: relative;
    z-index: 1;
    margin-top: 1rem;
}

.header h1 {
    position: relative;
    background: linear-gradient(45deg, #FF4D4D, #FF4D4D, #FF4D4D);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: textGlow 2s ease-in-out infinite alternate, float 3s ease-in-out infinite;
    text-shadow: 0 2px 4px rgba(255, 107, 107, 0.2);
    font-size: clamp(1.8rem, 8vw, 2.5rem);
}

.header h1::before,
.header h1::after {
    content: '❤';
    position: absolute;
    opacity: 0;
    animation: heartFly 3s ease-in-out infinite;
}

.header h1::before {
    left: -30px;
    animation-delay: 0s;
}

.header h1::after {
    right: -30px;
    animation-delay: 1.5s;
}

body.theme-night .header h1 {
    background: linear-gradient(45deg, #ff9e9e, #e0f7fa, #ff9e9e);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 8px rgba(224, 247, 250, 0.3);
}

.header p {
    position: relative;
    animation: fadeInUp 1s ease-out;
    background: linear-gradient(90deg, #fff, #ffe6e6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: clamp(1rem, 5vw, 1.3rem);
    margin-top: 0.5rem;
}

body.theme-night .header p {
    background: linear-gradient(90deg, #f0f0f0, #e0f7fa);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 1px 2px rgba(224, 247, 250, 0.2);
}

.header p::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #ff6b6b, transparent);
    opacity: 0.8;
}

body.theme-night .header p::after {
    background: linear-gradient(90deg, transparent, #e0f7fa, transparent);
}

/* ================= 计时器区域 ================= */
.timer-container {
    background: rgba(255, 255, 255, 0.85);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(255, 100, 100, 0.2);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    text-align: center;
    width: 95%;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    z-index: 1;
}

body.theme-night .timer-container {
    background: rgba(40, 45, 60, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
    border: none;
}

.timer-box {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(255, 100, 100, 0.1);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

body.theme-night .timer-box {
    background: rgba(50, 55, 75, 0.6);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.number {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
    font-weight: bold;
    margin-bottom: 0.3rem;
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse 2s ease-in-out infinite;
    position: relative;
    display: inline-block;
}

.number::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    filter: blur(5px);
    -webkit-filter: blur(5px);
    opacity: 0.7;
    animation: numberGlow 2s ease-in-out infinite alternate;
}

body.theme-night .number {
    background: linear-gradient(to bottom, #ff7e7e, #ffd700);
    -webkit-background-clip: text;
    background-clip: text;
    text-shadow: 0 0 12px rgba(255, 126, 126, 0.6), 0 0 6px rgba(255, 215, 0, 0.4);
    animation: gentlePulse 2s ease infinite, softGlow 3s ease-in-out infinite alternate;
}

.label {
    font-size: clamp(0.75rem, 3.5vw, 0.9rem);
    color: #ff6b6b;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

body.theme-night .label {
    color: #a1e6ff;
    text-shadow: 0 0 8px rgba(161, 230, 255, 0.5);
}

/* ================= 重要日期区域 ================= */
.love-text {
    position: relative;
    padding: 1.5rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.3s ease;
    width: 95%;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    z-index: 1;
}

body.theme-night .love-text {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.love-text::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(45deg, rgba(255, 182, 193, 0.2) 0%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 182, 193, 0.2) 100%);
    border-radius: inherit;
}

body.theme-night .love-text::before {
    background: linear-gradient(45deg, rgba(255, 105, 180, 0.1) 0%, rgba(255, 255, 255, 0.05) 50%, rgba(255, 105, 180, 0.1) 100%);
}

/* 重要日期区域文字样式 */
.love-text p {
    position: relative;
    padding: 0.8rem 2rem;
    margin: 1rem 0;
    background: linear-gradient(to right, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    text-align: center;
    color: #333;
    font-weight: 500;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    overflow: visible; /* 确保爱心不被裁剪 */
}

.love-text p:nth-child(1) { animation-delay: 0.2s; }
.love-text p:nth-child(2) { animation-delay: 0.4s; }
.love-text p:nth-child(3) { animation-delay: 0.6s; }
.love-text p:nth-child(4) { animation-delay: 0.8s; }

body.theme-night .love-text p {
    color: #f8f8f8;
    font-weight: 500;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* 日期前后的爱心样式 - 针对微信端优化 */
.love-text p::before,
.love-text p::after {
    content: '💖'; /* 使用更圆润的爱心符号 */
    position: absolute;
    font-size: 1.2em;
    top: 50%;
    transform: translateY(-50%) scale(0.9);
    -webkit-transform: translateY(-50%) scale(0.9);
    animation: heartBeat 1.2s infinite;
    display: inline-block;
    width: 1.2em;
    height: 1.2em;
    line-height: 1;
}

/* 左侧爱心位置调整 */
.love-text p::before { 
    left: 0.5rem; /* 使用rem单位适配不同屏幕 */
}

/* 右侧爱心位置调整 */
.love-text p::after { 
    right: 0.5rem;
}

/* 夜间模式爱心调整 */
body.theme-night .love-text p::before,
body.theme-night .love-text p::after {
    color: #ff9e9e;
    text-shadow: 0 0 6px rgba(255, 158, 158, 0.5);
}

/* ================= 页脚样式 ================= */
.site-footer {
    width: 100%;
    padding: 1rem 0;
    text-align: center;
    font-size: 0.8rem;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    margin-top: 0.5rem;
    z-index: 1;
}

.footer-content {
    max-width: 100%;
    margin: 0 auto;
    padding: 0.5rem 1rem;
}

.footer-line {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-divider {
    color: rgba(0,0,0,0.3);
    padding: 0 0.2rem;
}

.site-footer a {
    color: #666;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.site-footer a:hover {
    text-decoration: underline;
}

body.theme-night .site-footer {
    background: rgba(0,0,0,0.2);
}

body.theme-night .site-footer,
body.theme-night .site-footer a {
    color: #aaa;
}

body.theme-night .footer-divider {
    color: rgba(255,255,255,0.3);
}

/* ================= 移动端适配 ================= */
@media (max-width: 768px) {
    .timer-container {
        grid-template-columns: repeat(2, 1fr);
        padding: 1rem;
        gap: 0.8rem;
    }
    
    .love-text {
        padding: 1rem;
    }
    
    .love-text p {
        padding: 0.8rem 1.5rem;
        margin: 0.8rem 0;
        font-size: 0.95rem;
    }
    
    /* 手机端爱心调整 */
    .love-text p::before,
    .love-text p::after {
        font-size: 1em; /* 适当缩小手机端爱心 */
    }
    
    /* 微信端额外调整 */
    body.wechat-browser .love-text p {
        padding-left: 1.8rem;
        padding-right: 1.8rem;
    }
    
    body.wechat-browser .love-text p::before {
        left: 0.3rem;
    }
    
    body.wechat-browser .love-text p::after {
        right: 0.3rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1rem 0.5rem;
        margin-top: 0.5rem;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .footer-line {
        flex-direction: column;
        gap: 0.3rem;
    }
    
    .footer-divider {
        display: none;
    }
}

/* ================= 微信端特殊样式 ================= */
body.wechat-browser .love-text p::before,
body.wechat-browser .love-text p::after {
    content: '💕'; /* 微信端使用更适合的爱心符号 */
    transform: translateY(-50%) scale(1);
    -webkit-transform: translateY(-50%) scale(1);
    display: inline-block;
}

body.wechat-browser .number {
    font-size: clamp(1.5rem, 10vw, 2.2rem);
}

/* 解决微信端字体渲染问题 */
body.wechat-browser {
    font-family: 'Helvetica Neue', Helvetica, 'Microsoft YaHei', sans-serif;
}

/* ================= 动画定义 ================= */
@keyframes textGlow {
    0% { filter: drop-shadow(0 0 2px rgba(255, 107, 107, 0.3)); }
    100% { filter: drop-shadow(0 0 8px rgba(255, 107, 107, 0.6)); }
}

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

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

@keyframes heartBeat {
    0%, 100% { 
        transform: translateY(-50%) scale(1);
        -webkit-transform: translateY(-50%) scale(1);
    }
    50% { 
        transform: translateY(-50%) scale(1.3);
        -webkit-transform: translateY(-50%) scale(1.3);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 0.95; }
    50% { opacity: 1; }
}

@keyframes gentlePulse {
    0%, 100% { opacity: 0.95; }
    50% { opacity: 1; }
}

@keyframes softGlow {
    0% { filter: drop-shadow(0 0 5px rgba(255, 126, 126, 0.5)); }
    100% { filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.3)); }
}

@keyframes floatHeart {
    0% {
        transform: translate(-50%, -50%) rotate(0deg) translateY(0);
        -webkit-transform: translate(-50%, -50%) rotate(0deg) translateY(0);
        opacity: 0.2;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg) translateY(-100vh);
        -webkit-transform: translate(-50%, -50%) rotate(360deg) translateY(-100vh);
        opacity: 0.2;
    }
}

@keyframes heartFly {
    0% {
        transform: translateY(0) scale(0.5);
        -webkit-transform: translateY(0) scale(0.5);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(-20px) scale(1.2);
        -webkit-transform: translateY(-20px) scale(1.2);
        opacity: 0;
    }
}

@keyframes numberGlow {
    from { transform: scale(1); opacity: 0.5; }
    to { transform: scale(1.1); opacity: 0.8; }
}

/* 爆炸动画基类 */
@keyframes heartExplosion {
    0% {
        transform: translate(-50%, -50%) scale(0);
        -webkit-transform: translate(-50%, -50%) scale(0);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        -webkit-transform: translate(-50%, -50%) scale(1);
        opacity: 0;
    }
}