* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, Arial, sans-serif;
}
body {
    color: #fff;
    background-color: #2c1e17;
    line-height: 1.5;
}
img {
    max-width: 100%;
    display: block;
}
a {
    text-decoration: none;
    color: inherit;
}

.pc {
   display: block !important;
}
.mob {
   display: none !important;
 }
 
.container {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}
/* 核心调整：背景图容器样式 */
section {
    width: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    background-position: top center;
    background-size: 100% auto;
    background-repeat: no-repeat;
    position: relative;
    min-height: 100vh;
}

.section-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}
h2 {
    font-size: 32px;
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
    font-weight: 700;
}
h3 {
    font-size: 19px;
    font-size: clamp(1.2rem, 3vw, 2rem);
    margin-bottom: 2rem;
    color: #e0c890;
    font-weight: 400;
}
/* 自定义按钮样式 */
.btn {
    display: block;
    width: 200px;
    height: 48px;
    line-height: 48px;
    background-color: #e8702a;
    color: #fff;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    -webkit-transition: background-color 0.3s ease;
    transition: background-color 0.3s ease;
    border: none;
    margin: 20px auto 0;
    text-align: center;
}
.btn:hover {
    background-color: #d1601f;
}
/* ====================== 【多浏览器兼容版】预约表单样式 ====================== */
.form-wrap {
    margin: 2rem auto;
    padding-top: 60%;
    background-color: transparent;
    border-radius: 8px;
    position: absolute;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;  
    width:100%;          
}
/* 一行布局的表单行 */
.form-row {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
    gap: 15px;
    -webkit-column-gap: 15px;
    -moz-column-gap: 15px;
    margin-bottom: 15px;
    width: 100%;
}
/* 表单项统一样式 */
.form-item {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    text-align: left;
    min-width: 280px;
}
.form-item label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: #ccc;
}
/* 自定义输入框样式 - 全浏览器兼容 */
.form-input {
    width: 100%;
    height: 40px;
    padding: 0 10px;
    border: 1px solid #666;
    border-radius: 0;
    background-color: rgb(65 42 34);
    color: #fff;
    font-size: 0.9rem;
    /* 移除所有浏览器默认样式 */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    outline: none;
}
/* 兼容所有浏览器 placeholder 样式 */
.form-input::-webkit-input-placeholder { color: #999; }
.form-input::-moz-placeholder { color: #999; opacity: 1; }
.form-input:-ms-input-placeholder { color: #999; }
.form-input::-ms-input-placeholder { color: #999; }
.form-input::placeholder { color: #999; }

/* 自定义下拉框样式 - 核心兼容 Edge/Chrome/360 */
.custom-select {
    position: relative;
    width: 100%;
    height: 40px;
}
.custom-select select {
    width: 100%;
    height: 100%;
    padding: 0 10px;
    border: 1px solid #666;
    border-radius: 0;
    background-color: rgb(65 42 34);
    color: #fff;
    font-size: 0.9rem;
    /* 全浏览器移除默认下拉箭头 */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    outline: none;
    cursor: pointer;
}
/* 兼容火狐/IE/Edge 下拉框默认样式 */
.custom-select select::-ms-expand {
    display: none;
}
/* 自定义下拉箭头 */
.custom-select::after {
    content: '▼';
    position: absolute;
    right: 10px;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    color: #ccc;
    font-size: 0.7rem;
    pointer-events: none;
}
.hide-item {
    display: none !important;
}

/* 提交成功提示框样式 */
.success-tips {
    position: fixed;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    background: #fff;
    border-radius: 8px;
    padding: 30px 40px;
    -webkit-box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    text-align: center;
    z-index: 9999;
    display: none;
}
.success-tips .icon {
    font-size: 48px;
    color: #52c41a;
    margin-bottom: 15px;
}
.success-tips .text {
    font-size: 16px;
    color: #333;
    line-height: 1.5;
    margin-bottom: 20px;
}
.success-tips .btn-confirm {
    padding: 8px 24px;
    background: #e8702a;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}
/* 遮罩层 */
.mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 9998;
    display: none;
}
/* 加载中提示 */
.dealer-loading {
    color: #666;
    padding: 8px 12px;
    display: none;
}        
/* IE11/360兼容模式 下拉框兼容 */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .custom-select select {
        padding-right: 20px;
    }
    .custom-select::after {
        display: none;
    }
    .form-input, .custom-select select {
        line-height: 40px;
    }
}
/* 同意协议样式 */
.form-agree {
    text-align: center;
    margin-bottom: 20px;
    font-size: 0.8rem;
    color: #ccc;
    padding-left: 5px;
}
.form-agree input {
    margin-right: 5px;
    vertical-align: middle;
}
/* 特性卡片样式 */
.features {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: (minmax(250px, 1fr))[auto-fit];
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    -webkit-column-gap: 2rem;
    -moz-column-gap: 2rem;
    margin-top: 3rem;
}
.feature-card {
    background-color: rgba(0, 0, 0, 0.4);
    padding: 2rem 1rem;
    border-radius: 8px;
    -webkit-transition: -webkit-transform 0.3s ease;
    transition: -webkit-transform 0.3s ease;
    transition: transform 0.3s ease;
    transition: transform 0.3s ease, -webkit-transform 0.3s ease;
}
.feature-card:hover {
    -webkit-transform: translateY(-5px);
    -ms-transform: translateY(-5px);
    transform: translateY(-5px);
}
.feature-card h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #e0c890;
}
.feature-card p {
    font-size: 0.9rem;
    color: #ddd;
    line-height: 1.6;
}
/* 各区块背景图 */
.hero {
    background-image: url("");
}
.drive {
    background-image: url(" ");
}
.comfort {
    background-image: url(" ");
}
.safety {
    background-image: url(" ");
}
/* 版权页样式 */
.copyright {
    min-height: 100px;
    background-color: #1a1a1a;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    background-size: 100% 100%;
}
.copyright::before {
    background-color: rgba(26, 26, 26, 0.9);
}
.copyright-content {
    color: #999;
    font-size: 0.9rem;
    text-align: center;
    line-height: 1.8;
}
/* 响应式调整 */
@media (max-width: 768px) {
    .pc {
       display: none !important;
    }       
    .mob {
       display: block !important;
     }
    section {
        min-height: auto;
    }
    .form-wrap {
        padding: 1rem 0;
        top:45%;
    }
    /* 移动端表单行改为纵向 */
    .form-row {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 10px;
        -webkit-column-gap: 10px;
        -moz-column-gap: 10px;
    }
    .form-item {
        min-width: 100%;
    }
    .features {
        -ms-grid-columns: 1fr;
        grid-template-columns: 1fr;
        gap: 1rem;
        -webkit-column-gap: 1rem;
        -moz-column-gap: 1rem;
    }
    h2 {
        font-size: clamp(1.5rem, 4vw, 2.5rem);
    }
    h3 {
        font-size: clamp(1rem, 2vw, 1.5rem);
    }

    /* 提交成功提示框样式 */
    .success-tips {
        padding: 3px 4px;
    }
  
    /* 移动端版权页适配 */
    .copyright {
        padding: 20px 10px;
        min-height: 150px;
    }
}
/* IE11 Grid降级 */
@supports not (display: grid) {
    .features {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    }
    .feature-card {
        -webkit-box-flex: 1;
        -ms-flex: 1 1 100%;
        flex: 1 1 100%;
        margin-bottom: 1rem;
    }
}