body {
    font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    background: #f0f2f5; /* 优化背景色 */
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 24px;
    box-sizing: border-box;
}

.intro {
    text-align: center;
    margin-bottom: 24px;
}

.intro h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5em;
    color: #333;
    letter-spacing: 1px;
}

.intro p {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1.5em;
    line-height: 1.6;
}

.card-tray {
    background: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    margin: 0 auto;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

.card-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
}

.zhipu-card-animate {
    cursor: pointer;
    width: 100%;
    margin: 0 auto;
    box-shadow: 0 4px 12px rgba(64,158,255,0.1);
    border-radius: 12px;
    background: linear-gradient(90deg,#e3f0ff 0%,#7c3aed 100%);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 16px;
    transition: box-shadow 0.2s, transform 0.18s, opacity 0.2s;
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    animation: zhipuFadeIn 0.8s cubic-bezier(.4,1.4,.6,1) 0.2s forwards;
}

.zhipu-card-animate:hover {
    box-shadow: 0 8px 24px rgba(64,158,255,0.2);
    transform: translateY(-4px) scale(1.02);
}

.card-uniform {
    width: 100%;
    min-width: 0;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    border-radius: 12px;
    box-sizing: border-box;
    box-shadow: 0 2px 8px rgba(64,158,255,0.1);
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    padding: 0 16px;
    margin: 0;
}

.card-uniform:hover {
    transform: translateY(-6px) scale(1.04);
    box-shadow: 0 8px 24px rgba(64,158,255,0.2);
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5em;
    color: #409eff;
    letter-spacing: 1px;
}

.card-desc {
    font-size: 1rem;
    font-weight: 600;
    color: #666;
}

.silicon-card {
    background: linear-gradient(90deg, #f3e3ff 0%, #7c3aed 100%);
}

@keyframes zhipuFadeIn {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 移动端适配 */
@media (max-width: 600px) {
    html, body {
        font-size: 16px;
    }
    body {
        font-size: 16px;
    }
    .container {
        max-width: 100%;
        width: calc(100% - 50px);
        /* min-height: 90vh; */
        margin: 25px auto;
        padding: 25px;
        border-radius: 16px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        position: static;
        background: #fff;
        height: auto;
        overflow: visible;
    }
    .intro {
        padding-top: 0;
    }
    .intro h2 {
        font-size: 1.3rem;
    }
    .intro p {
        font-size: 0.95rem;
    }
    .zhipu-card-animate {
        padding: 12px 16px;
    }
    .card-title {
        font-size: 1.1rem;
    }
    .card-desc {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    .card-list {
        gap: 12px;
    }
    .card-uniform {
        width: 100%;
        min-width: 0;
        height: 80px;
        padding: 0 8px;
        margin: 0 auto;
        box-sizing: border-box;
    }
}