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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #fff;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.title {
    font-size: 42px;
    font-weight: bold;
    color: #02053C;
    text-align: center;
    line-height: 1.4;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 18px;
    color: #002D64;
    text-align: center;
    margin-bottom: 50px;
}

.search-box {
    width: 100%;
    max-width: 400px;
}

.input-wrapper {
    margin-bottom: 20px;
}

.input-wrapper input {
    width: 100%;
    padding: 15px 20px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.3s;
}

.input-wrapper input:focus {
    border-color: #1a3a6e;
}

.input-wrapper input::placeholder {
    color: #999;
}

.search-btn {
    width: 100%;
    padding: 15px 20px;
    font-size: 18px;
    color: #fff;
    background-color: #1a3a6e;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.index-btn {
    width: 100%;
    display: inline-block;
    text-align: center;
    margin-top: 20px;
    padding: 15px 20px;
    font-size: 18px;
    color: #1a3a6e;
    text-decoration: none;
    background-color: #eeeeee;
    transition: background-color 0.3s;
}

.index-btn:hover {
    background-color: #e2e2e2;
}

.search-btn:hover {
    background-color: #0f2747;
}

.footer {
    background-color: #1a3a6e;
    color: #fff;
    padding: 30px 20px;
    text-align: center;
}

.footer-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .title {
        font-size: 28px;
    }

    .subtitle {
        font-size: 14px;
        margin-bottom: 40px;
    }

    .search-box {
        max-width: 100%;
        padding: 0 10px;
    }

    .input-wrapper input {
        padding: 12px 15px;
        font-size: 14px;
    }

    .search-btn,
    .index-btn {
        padding: 12px 15px;
        font-size: 16px;
    }

    .footer-title {
        font-size: 16px;
    }

    .footer-desc {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 22px;
    }

    .main-content {
        padding: 30px 15px;
    }
}