body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333;
    font-size: 16px;
    position: relative;
}

header {
    padding-top: 12px;
}

h1.title {
    font-size: 52px;
    margin: 0;
}

h2.title {
    font-size: 40px;
    margin: 0;
}

p.subtitle {
    font-size: 20px;
    max-width: 800px;
    color: #7F7F7F;
    margin: 0 auto;
}

h3 {
    font-size: 24px;
    font-weight: bold;
}

.cta-buttons {
    margin-top: 3em;
    margin-bottom: 5em;
}

.cta-buttons a {
    display: inline-block;
    margin-right: 10px;
    padding: 6px 16px;
    color: #2E7DE0;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

.cta-buttons a.primary {
    background: #2E7DE0;
    color: #FFF;
}

.cta-buttons a.primary:hover {
    background: #136FE3;
}

.cta-buttons a.default {
    background: #FFF;
    border: 1px solid #2E7DE0;
}

.cta-buttons a.default:hover {
    color: #FFF;
    background: #2E7DE0;
}

form {
    margin: 0 auto;
    text-align: left;
}

form .control input, form .control input:focus, form .control input:active, form .control .select select:focus {
    box-shadow: unset;
    border-color: #DBDBDB;
}

form .field .control div.select, form .field .control div.select select {
    width: 100%;
}

form button {
    padding: 10px 20px;
    background: #2E7DE0;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

form button:disabled {
    background: #71adf8;
    cursor: not-allowed;
}

footer {
    font-size: 14px;
    padding: 4em 0 2.5em 0;
}

footer a {
    margin: 0;
    color: #333;
    text-decoration: none;
}

footer img {
    max-height: 36px;
    max-width: 160px;
}

.banner-wrapper {
    background: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgba(240, 247, 255, 1) 100%);
}

.banner {
    background: url('../images/banner-bg.svg') no-repeat;
    background-size: contain;
    background-position: bottom;
}

.banner .hero-body {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    flex-wrap: wrap;
    padding: 8em 24px 4em 24px;
    max-width: 1280px;
    margin: 0 auto;
}

/* 屏幕尺寸大于900时，.banner .hero-body img宽度设置为600 */
@media (min-width: 900px) {
    .banner .hero-body img {
        width: 600px;
    }
}

.bg-gray {
    background-color: #F8F9FA;
}

.bg-advantage {
    background: #F8F9FA;
    padding: 24px;
    /* box-shadow: 0 10px 15px -3px #0000000d; */
    border-radius: 16px;
}

.small-text {
    font-size: 14px;
}

.bg-primary {
    background-color: #2E7DE0;
}

.bg-linear-gradient {
    background: linear-gradient(#F5FBFF, #FFF);
}

.text-primary {
    color: #2e7de0;
}

.text-gray {
    color: #888;
}

.text-white {
    color: #FFF;
}

.text-italic {
    font-style: italic;
}

.text-bold {
    font-weight: bold;
}

.text-uppercase {
    text-transform: uppercase;
}

.text-underline-white {
    border-bottom: 1px solid #FFF;
}

.text-indent {
    text-indent: 2rem;
}

.use-case {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-evenly;
}

.use-case .use-case-item .use-case-content{
    max-width: 440px;
    margin: 0 auto;
}

.use-case .use-case-item img {
    max-width: 400px;
    max-height: 400px;
}

.trusted {
    padding: 3em 2em;
    border-radius: 16px;
    max-width: 1440px;
    margin: 0 auto;
}

.introduction-wrapper {
    display: flex;
    flex-flow: row;
    justify-content: space-evenly;
    align-items: center;
    flex-wrap: wrap;
}

.introduction-text {
    max-width: 600px;
}

.max-width-2 {
    max-width: 200px;
}

.max-width-5 {
    max-width: 500px;
}

.max-width-6 {
    max-width: 600px;
}

#phoneNumber {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

#phoneNumber .select, #phoneNumber input {
    width: 48%;
}

.message {
    display: none;
    min-width: 260px;
    position: fixed;
    left: 50%;
    bottom: 4em;
    z-index: 9999;
    box-shadow: 0px 0px -2px 6px #f1f1f1;
    transform: translate(-50%, 0);
}

.message .message-body {
    text-align: left;
}

ul.disc {
    margin-left: 20px;
}

ul.disc li {
    text-indent: 0;
    list-style: disc;
}

.dropdown-content {
    max-height: 200px;
    overflow-y: auto;
}