/**
 * YuanCare·养元 - 浅色清新震撼级视觉主题
 * 色调：薄荷绿(#52B788) + 奶油白(#FFFDF5) + 淡金色(#FFD93D)
 */

/* ========== CSS 变量定义 ========== */
:root {
    /* 主色调 */
    --primary-mint: #52B788;
    --primary-mint-light: #74C69D;
    --primary-mint-dark: #40916C;
    --primary-cream: #FFFDF5;
    --primary-gold: #FFD93D;
    --primary-gold-light: #FFE066;
    
    /* 辅助色 */
    --bg-gradient-start: #FFFDF5;
    --bg-gradient-end: #E8F5E9;
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: rgba(82, 183, 136, 0.15);
    --text-primary: #1B4332;
    --text-secondary: #52796F;
    --text-muted: #95D5B2;
    
    /* 阴影 */
    --shadow-soft: 0 4px 20px rgba(82, 183, 136, 0.1);
    --shadow-medium: 0 8px 32px rgba(82, 183, 136, 0.15);
    --shadow-strong: 0 12px 48px rgba(82, 183, 136, 0.2);
    
    /* 圆角 */
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 36px;
    
    /* 动画 */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== 3D 背景层 ========== */
#three-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ========== 开屏动画 ========== */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.splash-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1B4332 0%, #2D6A4F 30%, #40916C 60%, #52B788 100%);
    opacity: 1;
}

.splash-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.splash-logo {
    position: relative;
    z-index: 10;
    text-align: center;
    transform-style: preserve-3d;
}

.splash-logo-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-gold-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    margin: 0 auto 24px;
    box-shadow: 0 0 60px rgba(255, 217, 61, 0.5), 0 0 100px rgba(255, 217, 61, 0.3);
    animation: logoPulse 2s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 60px rgba(255, 217, 61, 0.5), 0 0 100px rgba(255, 217, 61, 0.3); }
    50% { transform: scale(1.05); box-shadow: 0 0 80px rgba(255, 217, 61, 0.6), 0 0 120px rgba(255, 217, 61, 0.4); }
}

.splash-logo-text {
    font-size: 48px;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
    letter-spacing: 4px;
}

.splash-logo-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 12px;
    letter-spacing: 2px;
}

/* ========== 滚动进度条 ========== */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-mint) 0%, var(--primary-gold) 50%, var(--primary-mint-light) 100%);
    z-index: 9999;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(82, 183, 136, 0.5);
}

/* ========== 卡片样式增强 ========== */
.card-enhanced {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-soft);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(82, 183, 136, 0.1), transparent);
    transition: left 0.6s ease;
}

.card-enhanced:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
    border-color: rgba(82, 183, 136, 0.3);
}

.card-enhanced:hover::before {
    left: 100%;
}

/* 卡片流光效果 */
.card-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transform: skewX(-25deg);
    transition: left 0.8s ease;
    pointer-events: none;
}

.card-enhanced:hover .card-shine {
    left: 150%;
}

/* 卡片图标脉冲 */
.card-icon-pulse {
    transition: transform var(--transition-normal);
}

.card-enhanced:hover .card-icon-pulse {
    animation: iconPulse 0.6s ease;
}

@keyframes iconPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* ========== 涟漪效果 ========== */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(82, 183, 136, 0.3);
    transform: scale(0);
    animation: rippleEffect 0.6s ease-out;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ========== 按钮样式 ========== */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-mint) 0%, var(--primary-mint-light) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(82, 183, 136, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(82, 183, 136, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-gold {
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-gold-light) 100%);
    color: var(--text-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(255, 217, 61, 0.3);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 217, 61, 0.4);
}

/* ========== 导航栏样式 ========== */
.navbar-enhanced {
    background: rgba(255, 253, 245, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    box-shadow: var(--shadow-soft);
}

.navbar-enhanced .nav-link {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.navbar-enhanced .nav-link:hover {
    color: var(--primary-mint);
}

.navbar-enhanced .nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-mint), var(--primary-gold));
    transition: width var(--transition-normal);
}

.navbar-enhanced .nav-link:hover::after {
    width: 100%;
}

/* ========== 标题样式 ========== */
.title-enhanced {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.title-enhanced::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-mint), var(--primary-gold));
    border-radius: 2px;
}

/* ========== 数字滚动动画 ========== */
.number-counter {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-mint) 0%, var(--primary-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== 图表容器 ========== */
.chart-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-soft);
    padding: 24px;
    transition: all var(--transition-normal);
}

.chart-container:hover {
    box-shadow: var(--shadow-medium);
}

/* ========== 浮动元素 ========== */
.float-element {
    animation: float 3s ease-in-out infinite;
}

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

/* ========== 淡入动画 ========== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 粒子背景 ========== */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary-gold);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 8s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.6;
    }
    25% {
        transform: translateY(-20px) translateX(10px);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-10px) translateX(-10px);
        opacity: 0.4;
    }
    75% {
        transform: translateY(-30px) translateX(5px);
        opacity: 0.7;
    }
}

/* ========== 响应式适配 ========== */
@media (max-width: 768px) {
    :root {
        --radius-lg: 20px;
        --radius-xl: 24px;
    }
    
    .splash-logo-text {
        font-size: 32px;
    }
    
    .title-enhanced {
        font-size: 28px;
    }
    
    .number-counter {
        font-size: 36px;
    }
}

/* ========== 滚动条美化 ========== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-gradient-start);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-mint-light), var(--primary-mint));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-mint), var(--primary-mint-dark));
}