/* 基础样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #ffffff;
    line-height: 1.6;
}

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

/* 标题样式 */
h1, h2, h3, h4 {
    color: #ffffff;
    text-align: center;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    margin-top: 40px;
}

h2 {
    font-size: 2rem;
    margin-top: 30px;
}

h3 {
    font-size: 1.75rem;
    margin-top: 25px;
}

h4 {
    font-size: 1.5rem;
    margin-top: 20px;
}

/* 卡片网格布局 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

/* 单个卡片样式 */
.card-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
}

.card-item:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

/* 卡片标题 */
.card-title {
    font-size: 1.5rem;
    color: #00e676;
    margin-bottom: 10px;
}

/* 卡片描述 */
.card-description {
    font-size: 1rem;
    color: #b2ff59;
    margin-bottom: 15px;
}

/* CTA按钮 */
.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, #ff6e40, #ff8e53);
    color: #ffffff;
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: background 0.3s ease, transform 0.3s ease;
}

.cta-button:hover {
    background: linear-gradient(45deg, #ff8e53, #ff6e40);
    transform: translateY(-5px);
}

/* 示例文章样式 */
.article-section {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    margin-bottom: 40px;
}

.article-section h2, .article-section h3, .article-section h4 {
    color: #81d4fa;
}

.article-section p, .article-section ul, .article-section ol {
    color: #b3e5fc;
}

.article-section pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
}

.article-section code {
    color: #ffab40;
}

.article-section a {
    color: #ff5252;
    text-decoration: none;
}

.article-section a:hover {
    text-decoration: underline;
}

/* 图片样式 */
.image-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-bottom: 40px;
}

.image-gallery img {
    width: 100%;
    max-width: 320px;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.image-gallery img:hover {
    transform: scale(1.05);
}

/* 提示信息样式 */
.notice {
    text-align: center;
    font-size: 1.2rem;
    color: #ffeb3b;
    margin: 20px 0;
}

/* 响应式设计 */
@media (max-width: 1440px) {
    h1 {
        font-size: 2.3rem;
    }
    h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 1200px) {
    .card-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 1024px) {
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.6rem;
    }
    .cta-button {
        font-size: 0.85rem;
        padding: 8px 16px;
    }
}

@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    .article-section {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }
    h2 {
        font-size: 1.4rem;
    }
    .card-title {
        font-size: 1.3rem;
    }
    .card-description {
        font-size: 0.9rem;
    }
    .cta-button {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}

@media (max-width: 320px) {
    h1 {
        font-size: 1.5rem;
    }
    h2 {
        font-size: 1.2rem;
    }
    .card-title {
        font-size: 1.1rem;
    }
    .card-description {
        font-size: 0.8rem;
    }
}

/* 动画效果 */
@keyframes aurora-move {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

body {
    background: radial-gradient(circle, rgb(255, 87, 34), transparent);
    animation: aurora-move 15s linear infinite;
}

/* 链接样式 */
a[rel="nofollow"] {
    pointer-events: none;
    cursor: default;
}