/* 基础样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    color: #ffffff;
    line-height: 1.6;
}

/* 容器 */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* 头部 */
header {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #1cb5e0, #000046);
    position: relative;
    overflow: hidden;
}

header::before {
    content: "";
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center;
    background-size: cover;
    opacity: 0.1;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    from { transform: translateX(0); }
    to { transform: translateX(100%); }
}

header h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #00ff7f;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

header p {
    font-size: 18px;
    color: #ffffff;
}

/* 按钮样式 */
.button {
    background: linear-gradient(45deg, #ff416c, #ff4b2b);
    border: none;
    padding: 15px 30px;
    font-size: 16px;
    color: #ffffff;
    cursor: pointer;
    border-radius: 25px;
    transition: transform 0.3s ease, background 0.3s ease;
    text-decoration: none;
}

.button:hover {
    transform: scale(1.05);
    background: linear-gradient(45deg, #ff4b2b, #ff416c);
}

/* 不对称布局 */
.asymmetric-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    align-items: center;
}

.asymmetric-layout .large-visual {
    background: url('https://images.gptkong.com/demo/sample2.png') no-repeat center center;
    background-size: cover;
    height: 400px;
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}

.asymmetric-layout .info-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
}

.card h3 {
    margin-top: 0;
    color: #00ff7f;
}

.card p {
    color: #dddddd;
}

/* 动画效果 */
.hover-effect {
    transition: transform 0.3s ease-in-out;
}

.hover-effect:hover {
    transform: scale(1.1);
}

.scroll-animation {
    animation: slide-up 1s ease-in-out;
}

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

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table, th, td {
    border: 1px solid #ffffff;
}

th, td {
    padding: 12px;
    text-align: left;
}

th {
    background: #00ff7f;
    color: #000000;
}

td {
    background: rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .asymmetric-layout {
        grid-template-columns: 1fr;
    }
    .asymmetric-layout .large-visual {
        height: 300px;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 36px;
    }
    .container {
        padding: 20px 10px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 28px;
    }
    .button {
        padding: 10px 20px;
        font-size: 14px;
    }
}

@media (max-width: 320px) {
    header h1 {
        font-size: 24px;
    }
    .card h3 {
        font-size: 18px;
    }
}