* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
div, span, p, a {
    font-size: 14px;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {max-width: 960px; margin: 0 auto;}
/* 顶部导航 */
header {
    background-color: #f8f9fa;
    padding: 0 2%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 0px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 55px;
    max-width: 960px;
}

.flex {display: flex;}
.flex_row {display: flex; flex-direction: row;}
.flex_column {display: flex; flex-direction: column;}
.align_item_center {align-items: center;}
.flex_center {
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex-1 {flex: 1;}
.ml-10 {margin-left: 10px;}
.mb-15 {margin-bottom: 15px;}
.mt-10 {margin-top: 10px;}
.mt-15 {margin-top: 15px;}
.p-15 {padding: 15px;}
.logo {
    height: 40px;
}

nav {
    display: flex;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: #333;
    font-weight: 600;
    padding: 8px 12px;
    transition: all 0.3s ease;
}

nav a.active, nav a:hover {
    color: #28a745;
    border-bottom: 2px solid #28a745;
}

.contact {

}

/* 主内容区域 */
main {
    margin-top: 55px;
}

.icons {
    background-image: url(../image/home_icon.png);
    background-repeat: no-repeat;
    background-size: 400px;
    display: flex;
}
.cash_icon {
    background-position: -308px -130px;
    height: 14px;
    width: 80px;
}

.logo {
    background-position: 0 1px;
    width: 100px;
    height: 30px;

}
.head_phone_icon {
    background-position: -107px 0;
    width: 35px;
    height: 35px;
    background-color: #08ad54;
    border-radius: 50%;
}
.google_icons {
    background-position: -412px -67px;
    background-size: 550px;
    width: 94px;
    height: 28px;
}
.appstore_icons {
    background-position: -292px -68px;
    background-size: 550px;
    width: 94px;
    height: 28px;
}
[class*="working_icons"] {
    width: 34px;
    height: 28px;
}
.working_icons_1 {
    background-position: -370px -7px;
}
.working_icons_2 {
    background-position: -270px -9px;
}
.working_icons_3 {
    background-position: -306px -9px;
}
.working_icons_4 {
    background-position: -339px -8px;
}
[class*="icons_brand"] {
    background-size: 500px;
    height: 26px;
}
.icons_brand_honda {
    background-position: -6px -113px;
    width: 139px;
}
.icons_brand_jaguar {
    background-position: -169px -113px;
    width: 115px;
}
.icons_brand_nissan {
    background-position: -311px -108px;
    width: 43px;
    height: 36px;
}
.icons_brand_volvo {
    background-position: -385px -115px;
    width: 116px;
}
.icons_brand_audi {
    background-position: 1px -159px;
    width: 75px;
    height: 27px;
}
.icons_brand_acura {
    background-position: -91px -159px;
    width: 111px;
    height: 27px;
}
[class*="fas_icons"] {
    width: 21px;
    height: 21px;
}
.fas_icons_1 {
    background-position: -242px -10px;
}
.fas_icons_2 {
    background-position: -209px -11px;

}
.fas_icons_3 {
    background-position: -177px -9px;
}
.fas_icons_4 {
    background-position: -146px -8px;
}

[class*="footer_icons"] {
    width: 20px;
    height: 20px;
}
.footer_icons_logo {
    background-position: -182px -123px;
    width: 101px;
    height: 30px;
}
.footer_icons_local {
    background-position: -3px -51px;
}
.footer_icons_tel {
    background-position: -36px -51px;
}
.footer_icons_mail {
    background-position: -64px -51px;
}
[class*="fab_icons"] {
    width: 20px;
    height: 20px;
}
.fab_icons-facebook {
    background-position: -100px -51px;
}
.fab_icons-instagram {
    background-position: -136px -51px;
}
.fab_icons-youtube {
    background-position: -174px -51px;
}

/* 英雄区域 - 带背景图 */
.hero {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background-image: url('../image/bg1.png');
    background-position: right bottom;
    background-repeat: no-repeat;
    height: 320px;
    background-size: 300px;
    margin-left: 13%;
}

.about .hero {
    background-image: url('../image/about_bg1.png');
    margin-left: 10%;
    justify-content: center;
}
.about .hero-middle {
    max-width: 60%;
}

.hero h1 {
    /*font-size: 2.8rem;*/
    /*margin-bottom: 20px;*/
    /*max-width: 800px;*/
}

.hero h1 .cash {
    color: #28a745;
    font-size: 28px;
    padding-left: 10px;
}

.hero p {
    /*max-width: 600px;*/
    /*margin: 0 auto 30px;*/
    /*font-size: 1.1rem;*/
}
.hero p b {
    color: #04aa52;
}
.hero .hero-middle {
    margin: 15px 0;
}
.app-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.app-btn {
    display: block;
    background-color: #000000;
    border-radius: 6px;
    overflow: hidden;
}

.app-btn img {
    width: 100%;
    height: auto;
}

/* 步骤区域 */
.how-it-works {
    text-align: center;
    margin: 80px 0;
}

.how-title {
    background-color: #ECFDF5;
    color: #00AA52;
    padding: 8px 15px;
    border-radius: 8px;
}
.section-title {
    font-weight: 500;
}

.about .section-subtitle {
    color: #808080;
    font-size: 13px;
}
.about .button {
    border: 1px solid #00aa52;
    border-radius: 20px;
    padding: 8px 12px;
    background-color: #00aa52;
    color: #ffffff;
    font-size: 13px;
}

.steps-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    max-width: 1200px;
    margin-top: 35px;
}

.about .steps-container img {
    width: 85%;
    border-radius: 8px;
    overflow: hidden;
}

.step {
    flex: 1;

}

.step-icon {
    background-color: #ECFDF5;
    width: 50px;
    height: 50px;
    border-radius: 8px;
}

.step h3 {
    margin: 15px 0 3px 0;
    font-size: 15px;
    font-weight: 500;
}

.step p {
    font-size: 13px;
    color: #808080;
}


/* 汽车品牌区域 */
.car-brands {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    max-width: 1000px;
    margin-top: 80px;
    align-items: center;
}

.brand-logo {

}

.brand-logo:hover {
    filter: grayscale(0);
    opacity: 1;
}

/* 优势区域 - 带背景图 */
.why-choose-us {
    background-image: url("../image/bg2.png");
    background-repeat: no-repeat;
    background-position: left bottom;
    background-size: 400px;
}

.benefits-container {
    display: flex;
    justify-content: flex-end;
    padding-bottom: 45px;
}

.benefits-content {
    max-width: 60%;
}
.benefits-content-padding {
    display: flex;
    justify-content: end;
}
.benefits-content h2 {
    font-weight: 500;
    margin-top: 5px;
}

.benefit {
    align-items: center;
    margin-top: 15px;
}
.benefit p {
    color: #808080;
}

.benefit-icon {
    width: 50px;
    height: 50px;
    background-color: #ECFDF5;
    border-radius: 8px;
    margin-right: 15px;
}

.benefit h3 {
    margin-bottom: 5px;
    font-size: 15px;
    font-weight: 500;
}

/* FAQ区域 */
.faqs {
    padding: 80px 0;
    max-width: 500px;
    margin: 0 auto;
}
.faqs-title {text-align: center; color: #00AF52; font-weight: 500;}

.faq-container {
    max-width: 800px;
    margin: 20px auto;
}

.faq-item {
    border: 1px solid #D1D5DB;
    padding: 0 15px;
    border-radius: 8px;
    margin-bottom: 10px;
}

.faq-question {
    padding: 15px 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    padding-bottom: 15px;
    color: #808080;
    display: none;
}

.faq-answer.show {
    display: block;
}

.faq-icon {
    transition: transform 0.3s ease;
    position: relative;
}
.faq-icon:after {
    content: '>';
    display: inline-block;
    text-align: center;
    line-height: 15px;
    border: 1px solid #808080;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    font-style: normal;
    color: #808080;
    font-weight: 400;
    font-size: 13px;
}

.faq-item.active .faq-icon {
    transform: rotate(90deg);
}

/* 下载区域 */
.download-app {
    background-image: url(../image/bg3.png);
    background-size: 230px;
    background-position: 0 30px;
    height: 270px
}

.download-container {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    flex: 1;
    align-items: end;
}

.download-content .hero-middle {
    margin: 15px 0;
}

.download-content h2 span {
    color: #28a745;
}

/* 页脚 */
footer {
    background-color: #024021;
    color: white;
    padding: 30px 10%;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
}

.footer-logo {
    flex: 1;
    margin-bottom: 15px;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 20px;
}

.footer-links {
    flex: 1;
    min-width: 250px;
}

.footer-links h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-links a {
    display: block;
    color: #ddd;
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #28a745;
}

.footer-contact {
    text-align: left;
    gap: 15px;
}

.footer-contact h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-contact p {
    margin-bottom: 10px;
    color: #ddd;
}
.footer-contact span {
    font-size: 13px;
}
.footer-contact .fas {
    margin-right: 5px;
}
.footer-content .social-title {
    text-align: left;
}
.footer-content .social-icons {
    gap: 10px;
}
.download-image img{
    width: 300px;
    max-width: 300px;
}

.copyright {
    padding-top: 30px;
    border-top: 1px solid #444;
    color: #aaa;
}

/* 响应式设计 */
/*@media (max-width: 768px) {*/

/*}*/

@media (max-width: 480px) {
    header {
        gap: 15px;
        padding: 15px;
    }

    .nav_tel {display: none;}

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.2rem;
    }
    h3 {
        font-size: 1rem;
    }

    .mengban {
        position: absolute;
        top: 4%;
        left: 4%;
        bottom: 4%;
        right: 4%;
        border-radius: 8px;
        z-index: 999;
    }
    .mengban-bg {
        background-color: #000;
        opacity: 0.4;
        position: absolute;
        z-index: -1;
        border-radius: 8px;
        left: 0;
        top: 0;
        bottom: 0;
        right: 0;
    }

    .hero {
        position: relative;
        margin-left: 0;
        padding: 6%;
        justify-content: center;
    }
    .hero h1, .hero p {
        color: #ffffff;
    }
    .hero h1 {
        align-items: center;
    }
    .hero p b, .hero h1 .cash {
        color: #5cffa9;
    }
    .benefits-content-padding {
        padding: 15px;
    }
    .how-it-works {
        margin: 30px 0;
    }
    .steps-container {padding: 0 15px;}
    .step {
        flex: 1 1 calc(50% - 20px)
    }
    .car-brands {margin-top: 50px;}

    .benefits-content {
        max-width: 100%;
    }
    .why-choose-us {
        position: relative;
        height: 550px;
    }
    .how-title-div {
        text-align: center;
    }
    .benefits-content h2, .benefits-content h3, .benefits-content p {
        color: #FFFFFF;
    }
    .benefits-content h3, .benefits-content p {
        font-size: 13px;
    }
    .faqs {padding: 30px 15px;}

    .about .hero {margin-left: 0;}
    .about .hero-middle {max-width: 100%;}
    .about .steps-container img {width: 100%;}
    .download-content {margin-left: 5px;}
    .download-app{overflow: hidden;}
    footer {
        padding: 30px 2%;
    }
}