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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: url('https://image.zhou12203.top/file/1740855309070_IMG1738763064636-topaz-upscale-2.4x.jpg') no-repeat center center fixed;
    background-size: cover;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.85) 0%, rgba(118, 75, 162, 0.85) 100%);
    z-index: -1;
    animation: backgroundPulse 8s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0% { background: linear-gradient(135deg, rgba(102, 126, 234, 0.85) 0%, rgba(118, 75, 162, 0.85) 100%); }
    50% { background: linear-gradient(135deg, rgba(118, 75, 162, 0.9) 0%, rgba(102, 126, 234, 0.8) 100%); }
    100% { background: linear-gradient(135deg, rgba(102, 126, 234, 0.85) 0%, rgba(118, 75, 162, 0.85) 100%); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部样式 */
.header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.header-content {
    position: relative;
    z-index: 2;
}

.title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
        text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 255, 255, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(255, 255, 255, 0.4);
        text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 30px rgba(255, 255, 255, 0.8);
    }
}

.title i {
    font-size: 3rem;
    animation: rotate 10s linear infinite;
}

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

.subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 300;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2), 0 0 10px rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
    padding: 0.8rem 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 1rem;
    animation: subtitleFloat 4s ease-in-out infinite;
}

@keyframes subtitleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.header-decoration {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
}

/* 主要内容区域 */
.main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.navigation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1000px;
}

/* 导航卡片样式 */
.nav-card {
    background: rgba(45, 27, 77, 0.85);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(102, 126, 234, 0.3);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transform-style: preserve-3d;
    perspective: 1000px;
}

/* 添加微妙的呼吸动画 */
.nav-card {
    animation: cardBreathe 6s ease-in-out infinite;
    position: relative;
}

@keyframes cardBreathe {
    0%, 100% {
        transform: scale(1) translateZ(0);
        box-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
    }
    50% {
        transform: scale(1.005) translateZ(2px);
        box-shadow: 0 0 35px rgba(102, 126, 234, 0.4);
    }
}

/* 悬停时的边框发光效果 */
.nav-card:hover {
    animation: none; /* 停止呼吸动画 */
}

.nav-card:hover::before {
    animation-play-state: paused; /* 暂停背景动画 */
}

/* 为悬停状态添加特殊的边框动画 */
.nav-card::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
    pointer-events: none;
}

.nav-card:hover::after {
    opacity: 1;
    animation: borderSweep 0.6s ease-out;
}

@keyframes borderSweep {
    0% {
        background: linear-gradient(45deg, rgba(255, 255, 255, 0.5), transparent, transparent);
    }
    50% {
        background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    }
    100% {
        background: linear-gradient(45deg, transparent, transparent, rgba(255, 255, 255, 0.5));
    }
}

/* 超级悬停状态的额外效果 */
.card-super-hover {
    animation: superHoverPulse 0.6s ease-out !important;
}

@keyframes superHoverPulse {
    0% {
        transform: scale(1);
    }
    30% {
        transform: scale(1.02);
    }
    60% {
        transform: scale(0.98);
    }
    100% {
        transform: scale(1);
    }
}

/* 为不同卡片添加独特的悬停震动效果 */
.nav-card:nth-child(6n+1).card-super-hover {
    animation: tiltShake 0.5s ease-out;
}

.nav-card:nth-child(6n+2).card-super-hover {
    animation: bounceShake 0.5s ease-out;
}

.nav-card:nth-child(6n+3).card-super-hover {
    animation: rotateShake 0.5s ease-out;
}

@keyframes tiltShake {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(1deg); }
    75% { transform: rotate(-1deg); }
}

@keyframes bounceShake {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

@keyframes rotateShake {
    0%, 100% { transform: rotateZ(0deg); }
    25% { transform: rotateZ(0.5deg); }
    75% { transform: rotateZ(-0.5deg); }
}

.nav-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-card:hover::before {
    transform: scaleX(1);
}

.nav-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px -12px rgba(102, 126, 234, 0.4);
}

/* 为不同的卡片添加独特样式 - 使用循环模式适应任意数量 */
.nav-card:nth-child(6n+1) {
    background: linear-gradient(135deg, rgba(45, 27, 77, 0.9), rgba(102, 126, 234, 0.8));
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
    border: 2px solid rgba(102, 126, 234, 0.5);
    animation: cardGlow1 4s ease-in-out infinite;
}

.nav-card:nth-child(6n+1)::after {
    content: '✨';
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 20px;
    opacity: 0.7;
    animation: sparkle 2s ease-in-out infinite;
    transition: all 0.3s ease;
}

/* 悬停时装饰元素的特殊变化 */
.nav-card:nth-child(6n+1):hover::after {
    font-size: 28px;
    opacity: 1;
    transform: rotate(180deg) scale(1.3);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
}

/* 为第一个卡片添加小烟花背景效果 */
.nav-card:nth-child(6n+1)::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 70%,
        transparent 0%,
        transparent 40%,
        rgba(102, 126, 234, 0.15) 45%,
        transparent 50%);
    animation: firework 3s ease-out infinite;
    z-index: 0;
    pointer-events: none;
}



@keyframes firework {
    0% { transform: scale(0); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

.nav-card:nth-child(6n+2) {
    background: linear-gradient(135deg, rgba(45, 27, 77, 0.9), rgba(118, 75, 162, 0.8));
    clip-path: polygon(15% 0, 100% 0, 100% 100%, 0 100%, 0 15%);
    border: 2px solid rgba(118, 75, 162, 0.5);
    animation: cardGlow2 4s ease-in-out infinite;
}

.nav-card:nth-child(6n+2)::after {
    content: '🚀';
    position: absolute;
    bottom: 15px;
    left: 15px;
    font-size: 20px;
    opacity: 0.7;
    animation: rocket 3s ease-in-out infinite;
    transition: all 0.3s ease;
}

.nav-card:nth-child(6n+2):hover::after {
    font-size: 28px;
    opacity: 1;
    transform: rotate(-15deg) scale(1.4) translateY(-5px);
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.8));
}

.nav-card:nth-child(6n+3) {
    background: linear-gradient(135deg, rgba(45, 27, 77, 0.9), rgba(153, 50, 204, 0.8));
    border-radius: 30px;
    border: 2px solid rgba(153, 50, 204, 0.5);
    animation: cardGlow3 4s ease-in-out infinite;
    position: relative;
}

.nav-card:nth-child(6n+3)::before {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    background: linear-gradient(45deg,
        #9932cc, #ba55d3, #da70d6, #ee82ee,
        #dda0dd, #9370db, #8a2be2, #9932cc);
    border-radius: 36px;
    z-index: -1;
    animation: borderPulseRotate 6s ease-in-out infinite;
    filter: blur(0.5px);
}

.nav-card:nth-child(6n+4) {
    background: linear-gradient(135deg, rgba(45, 27, 77, 0.9), rgba(186, 85, 211, 0.8));
    clip-path: polygon(0 0, 100% 0, 100% 100%, 15% 100%, 0 85%);
    border: 2px solid rgba(186, 85, 211, 0.5);
    animation: cardGlow4 4s ease-in-out infinite;
}

.nav-card:nth-child(6n+4)::after {
    content: '🎯';
    position: absolute;
    top: 15px;
    left: 15px;
    font-size: 20px;
    opacity: 0.7;
    animation: float 2s ease-in-out infinite;
    transition: all 0.3s ease;
}

.nav-card:nth-child(6n+4):hover::after {
    font-size: 26px;
    opacity: 1;
    transform: rotate(360deg) scale(1.3);
    filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.9));
}

.card-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.nav-card:hover .card-icon {
    transform: scale(1.1);
    background: var(--gradient-accent);
}

.card-content {
    flex: 1;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #e0e0e0;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.card-description {
    color: #c0c0c0;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

/* 悬停时文字和内容的特殊变化 */
.nav-card:hover .card-title {
    color: #ffffff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8), 0 0 40px rgba(255, 255, 255, 0.4);
    transform: translateY(-2px) scale(1.05);
    font-weight: 700;
}

.nav-card:hover .card-description {
    color: #f5f5f5;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
    transform: translateY(-1px) scale(1.02);
}

/* 悬停时卡片内容的整体变化 */
.nav-card:hover .card-content {
    transform: translateZ(10px);
}

/* 悬停时标签的特殊效果 */
.nav-card:hover .tag {
    transform: translateY(-1px) scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 悬停时箭头的增强效果 */
.nav-card:hover .card-arrow {
    transform: translateX(8px) scale(1.2);
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: rgba(255, 255, 255, 0.15);
    color: #e0e0e0;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-card:hover .tag {
    background: rgba(102, 126, 234, 0.8);
    color: white;
    border-color: rgba(102, 126, 234, 0.5);
}

.card-arrow {
    flex-shrink: 0;
    color: var(--text-light);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.nav-card:hover .card-arrow {
    color: var(--primary-color);
    transform: translateX(4px);
}

/* 继续添加更多卡片样式 - 循环模式 */
.nav-card:nth-child(6n+5) {
    background: linear-gradient(135deg, rgba(45, 27, 77, 0.9), rgba(218, 112, 214, 0.8));
    clip-path: polygon(0 15%, 15% 0, 100% 0, 100% 100%, 0 100%);
    border: 2px solid rgba(218, 112, 214, 0.5);
    animation: cardGlow5 4s ease-in-out infinite;
}

.nav-card:nth-child(6n+5)::after {
    content: '💫';
    position: absolute;
    bottom: 15px;
    right: 15px;
    font-size: 20px;
    opacity: 0.7;
    animation: rotate 3s linear infinite;
    transition: all 0.3s ease;
}

.nav-card:nth-child(6n+5):hover::after {
    font-size: 28px;
    opacity: 1;
    transform: scale(1.4) rotateY(180deg);
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 1));
}

.nav-card:nth-child(6n+6) {
    background: linear-gradient(135deg, rgba(45, 27, 77, 0.9), rgba(238, 130, 238, 0.8));
    clip-path: polygon(0 0, 85% 0, 100% 15%, 100% 100%, 0 100%);
    border: 2px solid rgba(238, 130, 238, 0.5);
    animation: cardGlow6 4s ease-in-out infinite;
}

.nav-card:nth-child(6n+6)::after {
    content: '🌟';
    position: absolute;
    top: 50%;
    right: 15px;
    transform: translateY(-50%);
    font-size: 20px;
    opacity: 0.7;
    animation: sparkle 2s ease-in-out infinite;
    transition: all 0.3s ease;
}

.nav-card:nth-child(6n+6):hover::after {
    font-size: 30px;
    opacity: 1;
    transform: translateY(-50%) rotate(720deg) scale(1.5);
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 1));
}

/* 动画关键帧 */
/* 重构旋转动画 - 支持多种旋转效果 */
@keyframes borderRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes borderRotateReverse {
    0% { transform: rotate(360deg); }
    100% { transform: rotate(0deg); }
}

@keyframes borderPulseRotate {
    0% {
        transform: rotate(0deg) scale(1);
        opacity: 0.8;
    }
    25% {
        transform: rotate(90deg) scale(1.05);
        opacity: 1;
    }
    50% {
        transform: rotate(180deg) scale(1);
        opacity: 0.8;
    }
    75% {
        transform: rotate(270deg) scale(1.05);
        opacity: 1;
    }
    100% {
        transform: rotate(360deg) scale(1);
        opacity: 0.8;
    }
}

@keyframes borderWave {
    0% {
        transform: rotate(0deg) scaleX(1) scaleY(1);
    }
    25% {
        transform: rotate(90deg) scaleX(1.1) scaleY(0.9);
    }
    50% {
        transform: rotate(180deg) scaleX(1) scaleY(1);
    }
    75% {
        transform: rotate(270deg) scaleX(0.9) scaleY(1.1);
    }
    100% {
        transform: rotate(360deg) scaleX(1) scaleY(1);
    }
}

@keyframes cardGlow1 {
    0%, 100% { box-shadow: 0 0 30px rgba(102, 126, 234, 0.3); }
    50% { box-shadow: 0 0 40px rgba(102, 126, 234, 0.5); }
}

@keyframes cardGlow2 {
    0%, 100% { box-shadow: 0 0 30px rgba(118, 75, 162, 0.3); }
    50% { box-shadow: 0 0 40px rgba(118, 75, 162, 0.5); }
}

@keyframes cardGlow3 {
    0%, 100% { box-shadow: 0 0 30px rgba(240, 147, 251, 0.3); }
    50% { box-shadow: 0 0 40px rgba(240, 147, 251, 0.5); }
}

@keyframes cardGlow4 {
    0%, 100% { box-shadow: 0 0 30px rgba(102, 126, 234, 0.3); }
    50% { box-shadow: 0 0 40px rgba(102, 126, 234, 0.5); }
}

@keyframes cardGlow5 {
    0%, 100% { box-shadow: 0 0 30px rgba(118, 75, 162, 0.3); }
    50% { box-shadow: 0 0 40px rgba(118, 75, 162, 0.5); }
}

@keyframes cardGlow6 {
    0%, 100% { box-shadow: 0 0 30px rgba(240, 147, 251, 0.3); }
    50% { box-shadow: 0 0 40px rgba(240, 147, 251, 0.5); }
}

@keyframes sparkle {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

@keyframes rocket {
    0% { transform: translate(-20px, 20px) rotate(45deg); opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { transform: translate(20px, -20px) rotate(45deg); opacity: 0; }
}

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

/* 超级增强悬停效果 - 明显的倾斜、缩放和特殊变化 */
.nav-card:nth-child(6n+1):hover {
    transform: translateY(-25px) translateX(-8px) rotate(-8deg) scale(1.12) rotateX(10deg);
    box-shadow:
        0 35px 80px rgba(102, 126, 234, 0.7),
        0 0 50px rgba(147, 112, 219, 0.5),
        inset 0 2px 0 rgba(255, 255, 255, 0.4),
        -10px 10px 30px rgba(102, 126, 234, 0.3);
    background: linear-gradient(135deg,
        rgba(102, 126, 234, 0.98),
        rgba(147, 112, 219, 0.95),
        rgba(138, 43, 226, 0.9));
    border-color: rgba(147, 112, 219, 1);
    border-width: 3px;
    filter: brightness(1.2) saturate(1.3);
}

.nav-card:nth-child(6n+2):hover {
    transform: translateY(-25px) translateX(8px) rotate(8deg) scale(1.12) rotateY(15deg);
    box-shadow:
        0 35px 80px rgba(138, 43, 226, 0.7),
        0 0 50px rgba(186, 85, 211, 0.5),
        inset 0 2px 0 rgba(255, 255, 255, 0.4),
        10px 10px 30px rgba(138, 43, 226, 0.3);
    background: linear-gradient(135deg,
        rgba(138, 43, 226, 0.98),
        rgba(186, 85, 211, 0.95),
        rgba(218, 112, 214, 0.9));
    border-color: rgba(186, 85, 211, 1);
    border-width: 3px;
    filter: brightness(1.2) saturate(1.3);
}

.nav-card:nth-child(6n+3):hover {
    transform: translateY(-30px) scale(1.15) rotateX(15deg) rotateZ(3deg);
    box-shadow:
        0 40px 100px rgba(153, 50, 204, 0.8),
        0 0 60px rgba(218, 112, 214, 0.6),
        inset 0 3px 0 rgba(255, 255, 255, 0.5),
        0 0 80px rgba(153, 50, 204, 0.4);
    background: linear-gradient(135deg,
        rgba(153, 50, 204, 0.98),
        rgba(218, 112, 214, 0.95),
        rgba(238, 130, 238, 0.9));
    border-color: rgba(218, 112, 214, 1);
    border-width: 4px;
    filter: brightness(1.3) saturate(1.4) contrast(1.1);
}

.nav-card:nth-child(6n+4):hover {
    transform: translateY(-25px) translateX(-6px) skew(-8deg, 2deg) scale(1.1) rotateZ(-5deg);
    box-shadow:
        0 35px 80px rgba(186, 85, 211, 0.7),
        0 0 50px rgba(153, 50, 204, 0.5),
        inset 0 2px 0 rgba(255, 255, 255, 0.4),
        -8px 15px 25px rgba(186, 85, 211, 0.4);
    background: linear-gradient(135deg,
        rgba(186, 85, 211, 0.98),
        rgba(153, 50, 204, 0.95),
        rgba(102, 126, 234, 0.9));
    border-color: rgba(153, 50, 204, 1);
    border-width: 3px;
    filter: brightness(1.2) saturate(1.3);
}

.nav-card:nth-child(6n+5):hover {
    transform: translateY(-25px) translateX(6px) skew(8deg, -2deg) scale(1.1) rotateZ(5deg);
    box-shadow:
        0 35px 80px rgba(218, 112, 214, 0.7),
        0 0 50px rgba(238, 130, 238, 0.5),
        inset 0 2px 0 rgba(255, 255, 255, 0.4),
        8px 15px 25px rgba(218, 112, 214, 0.4);
    background: linear-gradient(135deg,
        rgba(218, 112, 214, 0.98),
        rgba(238, 130, 238, 0.95),
        rgba(147, 112, 219, 0.9));
    border-color: rgba(238, 130, 238, 1);
    border-width: 3px;
    filter: brightness(1.2) saturate(1.3);
}

.nav-card:nth-child(6n+6):hover {
    transform: translateY(-28px) rotate(-6deg) scale(1.13) rotateY(20deg) rotateX(8deg);
    box-shadow:
        0 38px 90px rgba(238, 130, 238, 0.7),
        0 0 55px rgba(147, 112, 219, 0.5),
        inset 0 2px 0 rgba(255, 255, 255, 0.4),
        -5px 20px 35px rgba(238, 130, 238, 0.3);
    background: linear-gradient(135deg,
        rgba(238, 130, 238, 0.98),
        rgba(147, 112, 219, 0.95),
        rgba(102, 126, 234, 0.9));
    border-color: rgba(147, 112, 219, 1);
    border-width: 3px;
    filter: brightness(1.25) saturate(1.4);
}

/* 增强卡片图标的动画效果 - 循环模式 */
.nav-card:nth-child(6n+1):hover .card-icon {
    transform: scale(1.15) rotate(5deg);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
}

.nav-card:nth-child(6n+2):hover .card-icon {
    transform: scale(1.15) rotate(-5deg);
    background: linear-gradient(135deg, rgba(118, 75, 162, 0.9), rgba(240, 147, 251, 0.9));
}

.nav-card:nth-child(6n+3):hover .card-icon {
    transform: scale(1.2);
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.9), rgba(102, 126, 234, 0.9));
}

.nav-card:nth-child(6n+4):hover .card-icon {
    transform: scale(1.15) rotate(10deg);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(240, 147, 251, 0.9));
}

.nav-card:nth-child(6n+5):hover .card-icon {
    transform: scale(1.15) rotate(-10deg);
    background: linear-gradient(135deg, rgba(118, 75, 162, 0.9), rgba(102, 126, 234, 0.9));
}

.nav-card:nth-child(6n+6):hover .card-icon {
    transform: scale(1.2) rotate(3deg);
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.9), rgba(118, 75, 162, 0.9));
}

/* 页脚样式 */
.footer {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* 响应式设计 - 移动端性能优化 */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    /* 移动端简化标题动画 */
    .title {
        font-size: 2.5rem;
        padding: 1rem 1.5rem;
        animation: none !important; /* 移除复杂动画 */
    }

    .title i {
        font-size: 2rem;
        animation: none !important; /* 移除旋转动画 */
    }

    .subtitle {
        font-size: 1.1rem;
        padding: 0.6rem 1rem;
        animation: none !important; /* 移除浮动动画 */
    }

    /* 移除背景动画以提升性能 */
    body::before {
        animation: none !important;
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.85) 0%, rgba(118, 75, 162, 0.85) 100%) !important;
    }

    /* 移除头部装饰动画 */
    .header-decoration {
        animation: none !important;
        opacity: 0.3 !important;
    }

    .navigation-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* 移动端卡片优化 - 移除复杂动画和变换 */
    .nav-card {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        /* 在移动设备上简化形状 */
        clip-path: none !important;
        border-radius: 20px !important;
        /* 移除所有动画 */
        animation: none !important;
        transform: none !important;
        transition: opacity 0.2s ease, box-shadow 0.2s ease !important;
    }

    /* 移动端悬停效果简化 */
    .nav-card:hover {
        transform: none !important; /* 移除位置和大小变化 */
        box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3) !important; /* 简化阴影 */
    }

    /* 移除移动端的复杂悬停变换 */
    .nav-card:nth-child(6n+1):hover,
    .nav-card:nth-child(6n+2):hover,
    .nav-card:nth-child(6n+3):hover,
    .nav-card:nth-child(6n+4):hover,
    .nav-card:nth-child(6n+5):hover,
    .nav-card:nth-child(6n+6):hover {
        transform: none !important;
        filter: none !important;
        border-width: 2px !important;
    }

    /* 移动端图标简化 */
    .nav-card:hover .card-icon {
        transform: none !important;
    }

    /* 移动端文字效果简化 */
    .nav-card:hover .card-title {
        transform: none !important;
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.5) !important;
    }

    .nav-card:hover .card-description {
        transform: none !important;
        text-shadow: 0 0 5px rgba(255, 255, 255, 0.3) !important;
    }

    .card-content {
        text-align: center;
    }

    /* 移动设备上的装饰元素位置调整 */
    .nav-card::after {
        position: absolute !important;
        top: 10px !important;
        right: 10px !important;
        font-size: 16px !important;
        animation: none !important; /* 移除装饰动画 */
    }

    /* 移除移动端的边框动画 */
    .nav-card::before {
        animation: none !important;
        opacity: 0.1 !important;
    }

    /* 移除移动端的发光效果 */
    .nav-card:nth-child(6n+1),
    .nav-card:nth-child(6n+2),
    .nav-card:nth-child(6n+3),
    .nav-card:nth-child(6n+4),
    .nav-card:nth-child(6n+5),
    .nav-card:nth-child(6n+6) {
        animation: none !important;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.8rem 1rem;
        animation: none !important;
    }

    .subtitle {
        font-size: 1rem;
        padding: 0.5rem 0.8rem;
        animation: none !important;
    }

    .nav-card {
        padding: 1.25rem;
        animation: none !important;
        transform: none !important;
    }

    /* 进一步简化小屏幕设备的效果 */
    .nav-card:hover {
        transform: none !important;
        box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2) !important;
    }
}

/* 桌面和平板设备保持完整动画效果 */
@media (min-width: 769px) {
    /* 确保桌面端保持所有动画效果 */
    .nav-card {
        animation: cardBreathe 6s ease-in-out infinite;
    }

    /* 恢复桌面端的完整悬停效果 */
    .nav-card:hover {
        animation: none !important; /* 停止呼吸动画以显示悬停效果 */
        transform: translateY(-8px) !important;
        box-shadow: 0 25px 50px -12px rgba(102, 126, 234, 0.4) !important;
    }

    /* 恢复桌面端各种卡片的特殊悬停效果 */
    .nav-card:nth-child(6n+1):hover {
        transform: translateY(-25px) translateX(-8px) rotate(-8deg) scale(1.12) rotateX(10deg) !important;
        box-shadow:
            0 35px 80px rgba(102, 126, 234, 0.7),
            0 0 50px rgba(147, 112, 219, 0.5),
            inset 0 2px 0 rgba(255, 255, 255, 0.4),
            -10px 10px 30px rgba(102, 126, 234, 0.3) !important;
        background: linear-gradient(135deg,
            rgba(102, 126, 234, 0.98),
            rgba(147, 112, 219, 0.95),
            rgba(138, 43, 226, 0.9)) !important;
        border-color: rgba(147, 112, 219, 1) !important;
        border-width: 3px !important;
        filter: brightness(1.2) saturate(1.3) !important;
    }

    .nav-card:nth-child(6n+2):hover {
        transform: translateY(-25px) translateX(8px) rotate(8deg) scale(1.12) rotateY(15deg) !important;
        box-shadow:
            0 35px 80px rgba(138, 43, 226, 0.7),
            0 0 50px rgba(186, 85, 211, 0.5),
            inset 0 2px 0 rgba(255, 255, 255, 0.4),
            10px 10px 30px rgba(138, 43, 226, 0.3) !important;
        background: linear-gradient(135deg,
            rgba(138, 43, 226, 0.98),
            rgba(186, 85, 211, 0.95),
            rgba(218, 112, 214, 0.9)) !important;
        border-color: rgba(186, 85, 211, 1) !important;
        border-width: 3px !important;
        filter: brightness(1.2) saturate(1.3) !important;
    }

    .nav-card:nth-child(6n+3):hover {
        transform: translateY(-30px) scale(1.15) rotateX(15deg) rotateZ(3deg) !important;
        box-shadow:
            0 40px 100px rgba(153, 50, 204, 0.8),
            0 0 60px rgba(218, 112, 214, 0.6),
            inset 0 3px 0 rgba(255, 255, 255, 0.5),
            0 0 80px rgba(153, 50, 204, 0.4) !important;
        background: linear-gradient(135deg,
            rgba(153, 50, 204, 0.98),
            rgba(218, 112, 214, 0.95),
            rgba(238, 130, 238, 0.9)) !important;
        border-color: rgba(218, 112, 214, 1) !important;
        border-width: 4px !important;
        filter: brightness(1.3) saturate(1.4) contrast(1.1) !important;
    }

    .nav-card:nth-child(6n+4):hover {
        transform: translateY(-25px) translateX(-6px) skew(-8deg, 2deg) scale(1.1) rotateZ(-5deg) !important;
        box-shadow:
            0 35px 80px rgba(186, 85, 211, 0.7),
            0 0 50px rgba(153, 50, 204, 0.5),
            inset 0 2px 0 rgba(255, 255, 255, 0.4),
            -8px 15px 25px rgba(186, 85, 211, 0.4) !important;
        background: linear-gradient(135deg,
            rgba(186, 85, 211, 0.98),
            rgba(153, 50, 204, 0.95),
            rgba(102, 126, 234, 0.9)) !important;
        border-color: rgba(153, 50, 204, 1) !important;
        border-width: 3px !important;
        filter: brightness(1.2) saturate(1.3) !important;
    }

    .nav-card:nth-child(6n+5):hover {
        transform: translateY(-25px) translateX(6px) skew(8deg, -2deg) scale(1.1) rotateZ(5deg) !important;
        box-shadow:
            0 35px 80px rgba(218, 112, 214, 0.7),
            0 0 50px rgba(238, 130, 238, 0.5),
            inset 0 2px 0 rgba(255, 255, 255, 0.4),
            8px 15px 25px rgba(218, 112, 214, 0.4) !important;
        background: linear-gradient(135deg,
            rgba(218, 112, 214, 0.98),
            rgba(238, 130, 238, 0.95),
            rgba(147, 112, 219, 0.9)) !important;
        border-color: rgba(238, 130, 238, 1) !important;
        border-width: 3px !important;
        filter: brightness(1.2) saturate(1.3) !important;
    }

    .nav-card:nth-child(6n+6):hover {
        transform: translateY(-28px) rotate(-6deg) scale(1.13) rotateY(20deg) rotateX(8deg) !important;
        box-shadow:
            0 38px 90px rgba(238, 130, 238, 0.7),
            0 0 55px rgba(147, 112, 219, 0.5),
            inset 0 2px 0 rgba(255, 255, 255, 0.4),
            -5px 20px 35px rgba(238, 130, 238, 0.3) !important;
        background: linear-gradient(135deg,
            rgba(238, 130, 238, 0.98),
            rgba(147, 112, 219, 0.95),
            rgba(102, 126, 234, 0.9)) !important;
        border-color: rgba(147, 112, 219, 1) !important;
        border-width: 3px !important;
        filter: brightness(1.25) saturate(1.4) !important;
    }

    /* 恢复桌面端图标悬停效果 */
    .nav-card:hover .card-icon {
        transform: scale(1.1) !important;
        background: var(--gradient-accent) !important;
    }

    .nav-card:nth-child(6n+1):hover .card-icon {
        transform: scale(1.15) rotate(5deg) !important;
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9)) !important;
    }

    .nav-card:nth-child(6n+2):hover .card-icon {
        transform: scale(1.15) rotate(-5deg) !important;
        background: linear-gradient(135deg, rgba(118, 75, 162, 0.9), rgba(240, 147, 251, 0.9)) !important;
    }

    .nav-card:nth-child(6n+3):hover .card-icon {
        transform: scale(1.2) !important;
        background: linear-gradient(135deg, rgba(240, 147, 251, 0.9), rgba(102, 126, 234, 0.9)) !important;
    }

    .nav-card:nth-child(6n+4):hover .card-icon {
        transform: scale(1.15) rotate(10deg) !important;
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(240, 147, 251, 0.9)) !important;
    }

    .nav-card:nth-child(6n+5):hover .card-icon {
        transform: scale(1.15) rotate(-10deg) !important;
        background: linear-gradient(135deg, rgba(118, 75, 162, 0.9), rgba(102, 126, 234, 0.9)) !important;
    }

    .nav-card:nth-child(6n+6):hover .card-icon {
        transform: scale(1.2) rotate(3deg) !important;
        background: linear-gradient(135deg, rgba(240, 147, 251, 0.9), rgba(118, 75, 162, 0.9)) !important;
    }

    /* 恢复桌面端文字悬停效果 */
    .nav-card:hover .card-title {
        color: #ffffff !important;
        text-shadow: 0 0 20px rgba(255, 255, 255, 0.8), 0 0 40px rgba(255, 255, 255, 0.4) !important;
        transform: translateY(-2px) scale(1.05) !important;
        font-weight: 700 !important;
    }

    .nav-card:hover .card-description {
        color: #f5f5f5 !important;
        text-shadow: 0 0 15px rgba(255, 255, 255, 0.5) !important;
        transform: translateY(-1px) scale(1.02) !important;
    }

    .nav-card:hover .card-content {
        transform: translateZ(10px) !important;
    }

    .nav-card:hover .tag {
        transform: translateY(-1px) scale(1.05) !important;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    }

    .nav-card:hover .card-arrow {
        transform: translateX(8px) scale(1.2) !important;
        color: #ffffff !important;
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.5) !important;
    }
}

/* 添加一些额外的视觉增强 */
.nav-card .card-icon {
    position: relative;
    overflow: hidden;
}

.nav-card .card-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
}

.nav-card:hover .card-icon::before {
    animation: shine 0.6s ease-in-out;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); opacity: 0; }
}

/* 为页面添加整体的微妙动画 */
.container {
    animation: containerFadeIn 1s ease-out;
}

@keyframes containerFadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* 为卡片添加额外的装饰层 */
.nav-card {
    position: relative;
}

.nav-card:nth-child(6n+1) {
    position: relative;
}

.nav-card:nth-child(6n+1):before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg,
        rgba(102, 126, 234, 0.2),
        transparent,
        rgba(147, 112, 219, 0.2),
        transparent);
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
    z-index: -2;
    animation: borderWave 10s ease-in-out infinite;
}

.nav-card:nth-child(6n+2):before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg,
        rgba(138, 43, 226, 0.2),
        transparent,
        rgba(186, 85, 211, 0.2),
        transparent);
    clip-path: polygon(15% 0, 100% 0, 100% 100%, 0 100%, 0 15%);
    z-index: -2;
    animation: borderRotateReverse 12s linear infinite;
}

.nav-card:nth-child(6n+4):before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg,
        rgba(186, 85, 211, 0.2),
        transparent,
        rgba(153, 50, 204, 0.2),
        transparent);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 15% 100%, 0 85%);
    z-index: -2;
    animation: borderWave 8s ease-in-out infinite reverse;
}

.nav-card:nth-child(6n+5):before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg,
        rgba(218, 112, 214, 0.2),
        transparent,
        rgba(238, 130, 238, 0.2),
        transparent);
    clip-path: polygon(0 15%, 15% 0, 100% 0, 100% 100%, 0 100%);
    z-index: -2;
    animation: borderRotate 15s linear infinite;
}

.nav-card:nth-child(6n+6):before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg,
        rgba(238, 130, 238, 0.2),
        transparent,
        rgba(147, 112, 219, 0.2),
        transparent);
    clip-path: polygon(0 0, 85% 0, 100% 15%, 100% 100%, 0 100%);
    z-index: -2;
    animation: borderPulseRotate 9s ease-in-out infinite;
}