:root {
    --primary-color: #f5f5f5;
    --secondary-color: #e0e0e0;
    --text-color: #333;
    --background-color: #fff;
    --pattern-color: #9C92AC;
}

.dark-mode {
    --primary-color: #424242;
    --secondary-color: #616161;
    --text-color: #f5f5f5;
    --background-color: #333;
    --pattern-color: #616161;
}

@font-face {
    font-family: 'Alibaba-PuHuiTi';
    src: url('Alibaba-PuHuiTi-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

body {
    font-family: 'Alibaba-PuHuiTi', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    position: relative;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23e0e0e0' fill-opacity='0.1' fill-rule='evenodd' stroke='%239C92AC' stroke-width='0.2'/%3E%3C/svg%3E");
    background-attachment: fixed;
    background-size: 300px;
    filter: blur(2px);
    z-index: -1;
}

header, main, footer {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

section {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--primary-color);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 1;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--secondary-color);
    border-radius: 8px;
    margin-bottom: 20px;
}

button {
    padding: 8px 16px;
    background-color: var(--secondary-color);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.project {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--primary-color);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.project:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

.project h3 {
    margin-top: 0;
    color: var(--text-color);
    font-size: 1.5em;
}

.project p {
    margin-bottom: 15px;
    color: var(--text-color);
}

.project a {
    display: inline-block;
    padding: 8px 16px;
    background-color: var(--secondary-color);
    color: var(--text-color);
    text-decoration: none;
    border-radius: 20px;
    transition: background-color 0.3s;
}

.project a:hover {
    background-color: var(--pattern-color);
}

.dark-mode {
    --primary-color: #424242;
    --secondary-color: #616161;
    --text-color: #f5f5f5;
    --background-color: #333;
}