:root {
    --bg-light: #f8f9fa;
    --bg-dark: #f5f7fa;
    --bg-box-show: #ffffff;
    --primary-color: #ffffff;
    --secondary-color: #2888FF;
    --accent-color: #e74c3c;
    --text-light: rgba(236, 240, 241, 0.8);
    --text-dark: #34495e;
    --light-text: #2c3e50;
    --dark-text: #666666;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 6px 12px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-light);
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background: var(--primary-color);
    background-clip: padding-box;
    border: 2px solid transparent;
}

::-webkit-scrollbar-track {
    border-radius: 10px;
    background: var(--bg-light);
}
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-light);
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
    transition: var(--transition);
}

main {
    flex: 1;
    width: 1200px;
    margin: 0 auto;
    padding: 16px;
    color: var(--text-dark);
}

html {
    scroll-behavior: smooth;
}
button,
input[type="button"],
input[type="submit"] {
    outline: none; /* 移除黑框 */
}
@media (max-width: 768px) {
    main {
        width: 100%;
        padding: 0.5rem;

    }
}