body {
    font-family: Arial, sans-serif;
    background-color: #f0f4f7;
    margin: 0;
    padding: 50px;
}

/* 手机样式 */
@media (max-width: 768px) {
    body {
        padding: 17px;
    }
}

.container {
    max-width: 1900px;
    margin: 0 auto;
    background-color: #fff;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #1e90ff;
    text-align: center;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #555;
}

input[type="text"],
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

input[type="email"],
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

textarea {
    resize: vertical;
    min-height: 90px;
}

input[type="submit"] {
    background-color: #1e90ff;
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
}

input[type="submit"]:hover {
    background-color: #007acc;
}

/* 加载动画的样式 */
#loading {
    display: none;
    position: fixed;
    z-index: 9999;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-color: rgba(255, 255, 255, 0.8);
    text-align: center;
    padding-top: 200px;
}

.spinner {
    width: 50px;
    height: 50px;
    position: relative;
    margin: 0 auto;
}

.spinner div {
    width: 6px;
    height: 6px;
    background-color: #1e90ff;
    /* 加载动画小圆点颜色 */
    border-radius: 100%;
    position: absolute;
    animation: spinner 1.2s linear infinite;
}

.spinner div:nth-child(1) {
    top: 0;
    left: 22px;
    animation-delay: -1.1s;
}

.spinner div:nth-child(2) {
    top: 4px;
    left: 32px;
    animation-delay: -1s;
}

.spinner div:nth-child(3) {
    top: 11px;
    left: 38px;
    animation-delay: -0.9s;
}

.spinner div:nth-child(4) {
    top: 22px;
    left: 42px;
    animation-delay: -0.8s;
}

.spinner div:nth-child(5) {
    top: 32px;
    left: 38px;
    animation-delay: -0.7s;
}

.spinner div:nth-child(6) {
    top: 39px;
    left: 32px;
    animation-delay: -0.6s;
}

.spinner div:nth-child(7) {
    top: 42px;
    left: 22px;
    animation-delay: -0.5s;
}

.spinner div:nth-child(8) {
    top: 39px;
    left: 11px;
    animation-delay: -0.4s;
}

.spinner div:nth-child(9) {
    top: 32px;
    left: 4px;
    animation-delay: -0.3s;
}

.spinner div:nth-child(10) {
    top: 22px;
    left: 0;
    animation-delay: -0.2s;
}

.spinner div:nth-child(11) {
    top: 11px;
    left: 4px;
    animation-delay: -0.1s;
}

.spinner div:nth-child(12) {
    top: 4px;
    left: 11px;
    animation-delay: 0s;
}

@keyframes spinner {

    0%,
    39%,
    100% {
        transform: scale(0.6);
        opacity: 0.6;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.loading-text {
    margin-top: 20px;
    font-size: 18px;
    color: #1e90ff;
}

footer {
    color: #aeaeae;
    text-align: center;
}

footer a {
    color: #aeaeae;
    text-decoration: none;
}