/* 基础重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
        background-size: 180% 180%;
        animation: gradient-animation 10s ease infinite;
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
    }

    @keyframes gradient-animation {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    header {
        text-align: center;
        padding: 40px 0;
    }

    header h1 {
        font-size: 3rem;
        color: #00ff99;
        text-shadow: 2px 2px 10px rgba(0, 255, 153, 0.7);
        margin-bottom: 10px;
    }

    header p {
        font-size: 1.2rem;
        color: #ffffff;
    }

    nav {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.5);
        padding: 10px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
    }

    nav a {
        color: #ffffff;
        text-decoration: none;
        margin: 0 10px;
        transition: color 0.3s;
    }

    nav a:hover {
        color: #00ff99;
    }

    .container {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 1200px;
        margin: 80px auto 40px auto;
    }

    .split-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .panel {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .panel h2, .panel h3 {
        color: #00ff99;
        margin-bottom: 15px;
    }

    .panel p {
        margin-bottom: 15px;
    }

    pre {
        background: #1a1a2e;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #ffcc00;
    }

    .button {
        position: relative;
        background-color: #00ff99;
        border: none;
        padding: 10px 20px;
        cursor: pointer;
        font-size: 1rem;
        color: #24243e;
        border-radius: 5px;
        transition: all 0.3s ease;
        margin-top: 10px;
    }

    .button::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        opacity: 0;
        transition: all 0.3s ease;
    }

    .button:hover::after {
        width: 300%;
        height: 300%;
        opacity: 1;
    }

    img {
        width: 100%;
        height: auto;
        border-radius: 10px;
    }

    .sample-article {
        background: rgba(0, 0, 0, 0.7);
        padding: 20px;
        border-radius: 10px;
    }

    .sample-article h2 {
        color: #ff6347;
        margin-bottom: 15px;
    }

    .sample-data {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
    }

    .sample-data ul {
        list-style: none;
    }

    .sample-data li {
        margin-bottom: 10px;
        padding-left: 20px;
        position: relative;
    }

    .sample-data li::before {
        content: '•';
        position: absolute;
        left: 0;
        color: #00ff99;
    }

    footer {
        text-align: center;
        padding: 20px 0;
        color: #ffffff;
    }

    @media (min-width: 320px) {
        .split-container {
            grid-template-columns: 1fr;
        }
    }

    @media (min-width: 480px) {
        .split-container {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (min-width: 768px) {
        .split-container {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (min-width: 1024px) {
        .split-container {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (min-width: 1200px) {
        .split-container {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (min-width: 1440px) {
        .split-container {
            grid-template-columns: 1fr 1fr;
        }
    }