* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

.h5k9p2m3n {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: k9m3p8j2n 0.6s ease-out;
}

@keyframes k9m3p8j2n {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.n8d4k7j2q {
    padding: 0 20px;
}

.c9m2n5k8p {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.h3k8m9p2d {
    font-size: 28px;
    font-weight: bold;
    color: #667eea;
}

.h3k8m9p2d a {
    text-decoration: none;
    color: #667eea;
    transition: all 0.3s ease;
}

.h3k8m9p2d a:hover {
    color: #764ba2;
    transform: scale(1.05);
    display: inline-block;
}

.u4j8k2m9n {
    display: flex;
    list-style: none;
    gap: 30px;
}

.u4j8k2m9n li a {
    text-decoration: none;
    color: #555;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 20px;
    position: relative;
}

.u4j8k2m9n li a:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.u4j8k2m9n li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #667eea;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.u4j8k2m9n li a:hover::after {
    width: 80%;
}

.m6k9p3n8j {
    max-width: 1400px;
    margin: 40px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
}

.s5j8k2m9p, .s9k3m8p2j, .s2k8m9p3j {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    animation: j8k9m3p2n 0.8s ease-out;
    grid-column: 1;
}

@keyframes j8k9m3p2n {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.h7j9k3m2p {
    font-size: 26px;
    color: #333;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 3px solid #667eea;
    position: relative;
}

.h7j9k3m2p::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 80px;
    height: 3px;
    background: #764ba2;
    animation: p8k9m3j2n 1.5s ease-in-out infinite;
}

@keyframes p8k9m3j2n {
    0%, 100% {
        width: 80px;
    }
    50% {
        width: 120px;
    }
}

.d5k8m2p9j {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.a8k9m3p2j {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    animation: m9k3p8j2n 0.6s ease-out backwards;
}

.a8k9m3p2j:nth-child(1) { animation-delay: 0.1s; }
.a8k9m3p2j:nth-child(2) { animation-delay: 0.2s; }
.a8k9m3p2j:nth-child(3) { animation-delay: 0.3s; }
.a8k9m3p2j:nth-child(4) { animation-delay: 0.4s; }

@keyframes m9k3p8j2n {
    from {
        opacity: 0;
        transform: scale(0.8) rotateY(20deg);
    }
    to {
        opacity: 1;
        transform: scale(1) rotateY(0);
    }
}

.a8k9m3p2j:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.a8k9m3p2j a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.i9k3m8p2j {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: all 0.4s ease;
}

.a8k9m3p2j:hover .i9k3m8p2j {
    transform: scale(1.1);
}

.d7k9m2p3n {
    padding: 20px;
}

.h9k3m8p2j {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.p8k9m3j2n {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
    line-height: 1.5;
}

.t5k8m9p2j {
    font-size: 13px;
    color: #999;
    display: block;
}

.a3k9m8p2j {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    grid-column: 2;
    grid-row: 1 / 4;
    position: sticky;
    top: 100px;
    height: fit-content;
    animation: j8k9m3p2n 0.8s ease-out;
}

.o5k8m9p2j {
    list-style: none;
}

.o5k8m9p2j li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    transition: all 0.3s ease;
}

.o5k8m9p2j li:hover {
    padding-left: 10px;
    background: rgba(102, 126, 234, 0.05);
}

.o5k8m9p2j li a {
    text-decoration: none;
    color: #555;
    font-size: 15px;
    transition: color 0.3s ease;
}

.o5k8m9p2j li:hover a {
    color: #667eea;
}

.f8k9m3p2j {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px 20px;
    text-align: center;
    margin-top: 50px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.p7k9m2j3n {
    color: #666;
    font-size: 14px;
    margin: 5px 0;
}

.d9k3m8p2j {
    position: fixed;
    bottom: 50px;
    right: 50px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    z-index: 999;
}

.d9k3m8p2j.j9k3m8p2n {
    opacity: 1;
    visibility: visible;
    animation: n8k9m3p2j 0.6s ease;
}

@keyframes n8k9m3p2j {
    0% {
        transform: scale(0) rotate(180deg);
    }
    100% {
        transform: scale(1) rotate(0);
    }
}

.a7k9m3p2j {
    display: block;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    line-height: 50px;
    font-size: 24px;
    border-radius: 50%;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

.a7k9m3p2j:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

@media (max-width: 1024px) {
    .m6k9p3n8j {
        grid-template-columns: 1fr;
    }

    .a3k9m8p2j {
        grid-column: 1;
        grid-row: auto;
        position: relative;
        top: 0;
    }
}

@media (max-width: 768px) {
    .c9m2n5k8p {
        flex-direction: column;
        gap: 15px;
    }

    .u4j8k2m9n {
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
    }

    .d5k8m2p9j {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 15px;
    }

    .s5j8k2m9p, .s9k3m8p2j, .s2k8m9p3j, .a3k9m8p2j {
        padding: 20px;
    }
}

.n4k8m9p2j {
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #666;
}

.n4k8m9p2j a {
    color: #667eea;
    text-decoration: none;
    margin: 0 5px;
    transition: color 0.3s ease;
}

.n4k8m9p2j a:hover {
    color: #764ba2;
}