/* 基础样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000066, #660099);
    color: #ffffff;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 标题样式 */
h1, h2, h3, h4 {
    font-family: 'Roboto', sans-serif;
    color: #39ff14;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

h1 {
    font-size: 48px;
    text-align: center;
    margin-top: 40px;
}

h2 {
    font-size: 36px;
    margin-top: 60px;
}

h3 {
    font-size: 28px;
    margin-top: 40px;
}

h4 {
    font-size: 22px;
    margin-top: 30px;
    color: #ff1493;
}

/* 段落样式 */
p {
    font-size: 16px;
    line-height: 1.6;
    color: #ffffff;
    margin-bottom: 20px;
    animation: fadeIn 2s ease-in-out;
}

/* 按钮样式 */
button {
    background-color: #39ff14;
    color: #000000;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
}

button:hover {
    background-color: #ff1493;
    transform: scale(1.1);
}

/* 图片样式 */
img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
    animation: slideIn 1s ease-out;
}

/* 代码块样式 */
pre {
    background: #1e1e1e;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    color: #39ff14;
    font-family: 'Courier New', Courier, monospace;
    margin-bottom: 20px;
}

code {
    color: #39ff14;
}

/* 动画关键帧 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 导航样式 */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    padding: 10px 0;
    z-index: 1000;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #39ff14;
}

/* 响应式设计 */
@media (max-width: 1440px) {
    h1 {
        font-size: 42px;
    }
    h2 {
        font-size: 32px;
    }
    h3 {
        font-size: 24px;
    }
    h4 {
        font-size: 20px;
    }
}

@media (max-width: 1200px) {
    .container {
        width: 95%;
    }
}

@media (max-width: 1024px) {
    nav ul {
        flex-direction: column;
    }
    nav ul li {
        margin: 10px 0;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 36px;
    }
    h2 {
        font-size: 28px;
    }
    h3 {
        font-size: 20px;
    }
    h4 {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    nav ul {
        flex-direction: column;
    }
    nav ul li {
        margin: 8px 0;
    }
    h1 {
        font-size: 30px;
    }
    h2 {
        font-size: 24px;
    }
    h3 {
        font-size: 18px;
    }
}

@media (max-width: 320px) {
    .container {
        padding: 10px;
    }
    h1 {
        font-size: 24px;
    }
    h2 {
        font-size: 20px;
    }
    h3 {
        font-size: 16px;
    }
    button {
        padding: 8px 16px;
        font-size: 14px;
    }
}