* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/* 加载动画 */
.loading {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: #f8f9fa;
    min-height: 100vh;
}
/* 导航栏样式 */
.nav-section {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 10%;
}
.navbar-custom {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    height: 78px;
    transition: all 0.3s ease;
}

.navbar-brand {
    display: flex;
    align-items: center;
}
.navbar-brand  .logo-text {
    font-family: FZLanTingHei-H-GBK;
    font-weight: 400;
    font-size: 24px;
    color: #121313;
}
.navbar-nav .nav-item{
    margin-right: 20px;
}
.navbar-nav .nav-link {
    padding: 0.5rem 1rem !important;
    margin: 0 0.25rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 14px;
    color: #060318 !important;;
    line-height: 14px;
}
.divider {
    margin: 26px 0;
    height: 1px;
    background: #E2E2E2;
}
.user-area , .login-area {
    margin-left: 46px;
    display: none;
}
/* 倒三角 */
.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28102, 126, 234, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
/* 自定义上传区域样式 */
.upload-container {
    position: relative;
    margin: 20px 0;
}
.upload-area {
    border: 2px dashed #257798;
    border-radius: 10px;
    padding: 40px 20px;
    text-align: center;
    background-color: #f8f9fa;
    cursor: pointer;
    transition: all 0.3s ease;
}
.upload-area:hover {
    border-color: #1c5c78;
    background-color: #e9ecef;
}
.upload-area.dragover {
    border-color: #257798;
    background-color: #e3f2fd;
    transform: scale(1.02);
}
.upload-icon {
    color: #257798;
    margin-bottom: 20px;
}
.upload-title {
    font-size: 18px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}
.upload-subtitle {
    font-size: 14px;
    color: #666;
}
.upload-preview {
    margin-top: 20px;
    padding: 15px;
    background-color: #e3f2fd;
    border-radius: 10px;
    border: 1px solid #bbdefb;
}
.file-info {
    display: flex;
    align-items: center;
}
.file-info i {
    font-size: 24px;
    color: #257798;
    margin-right: 15px;
}
.file-details {
    flex: 1;
}
#fileName {
    font-weight: 500;
    color: #333;
    margin-bottom: 5px;
}
#fileSize {
    font-size: 14px;
    color: #666;
}
.btn-remove {
    background: none;
    border: none;
    color: #dc3545;
    font-size: 18px;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}
.btn-remove:hover {
    background-color: #ffebee;
    border: none;
}
/* 自定义下拉菜单 */
.dropdown-custom {
    width: 160px;
    display: flex;
    align-items: center;
    background: #FFFFFF!important;
    background-color: #FFFFFF!important;
    box-shadow: 0px 0px 10px 0px #E6E6E6;
    border-radius: 6px;
    border: 1px solid #D4D7DE;
    color: #919294!important;
    height: 48px;
}
.dropdown-custom::after {
    margin-left: 45px;
}
.btn-secondary {
    background: #FFFFFF;
    color: #000000;
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    border: none;
}
.btn-secondary:hover {
    background: #FFFFFF;
    border: none;
    color: #919294;
}
.btn-secondary.focus, .btn-secondary:focus {
    background: transparent;
    color: #000000;
}
.btn-secondary:not(:disabled):not(.disabled).active, .btn-secondary:not(:disabled):not(.disabled):active, .show>.btn-secondary.dropdown-toggle {
    background: #FFFFFF;
    color: #919294;
    border-color: #80bdff!important;
}
.btn-outline-secondary:not(:disabled):not(.disabled).active, .btn-outline-secondary:not(:disabled):not(.disabled):active, .show>.btn-outline-secondary.dropdown-toggle {
    background: #FFFFFF;
    color: #919294;
}
.btn-outline-secondary:not(:disabled):not(.disabled).active, .btn-outline-secondary:not(:disabled):not(.disabled):active, .show>.btn-outline-secondary.dropdown-toggle {
    border-color: #80bdff;
    box-shadow: 0 0 0 .2rem rgba(0, 123, 255, .25);
}
.btn-outline-secondary:not(:disabled):not(.disabled).active:focus, .btn-outline-secondary:not(:disabled):not(.disabled):active:focus, .show>.btn-outline-secondary.dropdown-toggle:focus {
    box-shadow: 0 0 0 .2rem rgba(0, 123, 255, .25);
}
.btn-outline-secondary:hover {
    border-color: #D4D7DE;
}
.btn-secondary:not(:disabled):not(.disabled).active, .btn-secondary:not(:disabled):not(.disabled):active, .show>.btn-secondary.dropdown-toggle {
    border-color: #D4D7DE;
}
.btn-secondary:not(:disabled):not(.disabled).active:focus, .btn-secondary:not(:disabled):not(.disabled):active:focus, .show>.btn-secondary.dropdown-toggle:focus {
    box-shadow: none;
    border: none;
}
/* Custom button styles */
.btn-custom-add {
    width: 30px;
    height: 30px;
    color: #257798;
    border: 2px solid #257798;
    padding: inherit;
}
.btn-custom-tg {
    width: 159px;
    height: 50px;
    background: #1F1F21;
    border-radius: 25px;
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 15px;
    color: #FFFFFF;
}
.btn-custom-tg:hover {
    color: #FFFFFF;
}
.btn-custom-tg .icon-user {
    width: 28px;
    height: 29px;
    margin-left: 16px;
    background-color: #1F1F21;
    color: #FFFFFF;
}
/* 用户头像和下拉菜单样式 */
.user-area {
    position: relative;
    display: inline-block;
}

.avatar {
    transition: all 0.3s ease;
}

.avatar:hover {
    transform: scale(1.05);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 120px;
    z-index: 1000;
}

.user-dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    right: 20px;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
}

.dropdown-item {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background-color: #f5f5f5;
    color: #257798;
}
.btn-custom-right {
    width: 148px;
    height: 52px;
    background: #E4EDF5;
    border-radius: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.btn-custom-right span {
    margin-right: 20px;
    font-weight: 400;
    font-size: 15px;
    color: #115E85;
}
.btn-custom-right .icon-right {
    width: 12px;
    height: 8px;
}
.btn-opt {
    height: 30px;
    display: flex;
    align-items: center;
    padding: 8px 14px;
    background: #FFFFFF;
    border-radius: 4px;
    border: 1px solid #257798;
    margin-right: 16px;
    span {
        font-size: 12px;
        font-weight: 400;
    }
}

.container-fluid {
    width: 100%;
    display: flex;
    justify-content: center;
    padding-top: 78px;
    padding-right: 0px;
    padding-left: 0px;
}
/* 主内容区域 */
.main-content {
    width: 1200px;
    display: flex;
    flex-direction: column;
    background: #fff;
    gap: 60px;
    margin-bottom: 30px;
    margin-top: 43px;
    padding: 0 20px;
    border-radius: 16px;
}
/* 步骤条容器 */
.step-container {
    display: flex;
    align-items: center;
    width: 80%;
    margin: 20px auto;
    overflow: hidden;
}

/* 单个步骤样式 */
.step-item {
    position: relative;
    flex: 1;
    height: 60px;
    line-height: 60px;
    text-align: center;
    background-color: #e7faff;; /* 截图中的蓝绿色调 */
    color: #257798;
    font-size: 16px;
    font-weight: 500;
    margin-right: 30px;
}
.step-item.active {
    background-color: #257798;
    color: #fff;
}

/* 步骤右侧箭头（除最后一个步骤） */
.step-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -15px;
    top: 0;
    width: 0;
    height: 0;
    border-top: 30px solid transparent;
    border-bottom: 30px solid transparent;
    border-left: 15px solid #e7faff;
    z-index: 1;
}
.step-item.active:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -15px;
    top: 0;
    width: 0;
    height: 0;
    border-top: 30px solid transparent;
    border-bottom: 30px solid transparent;
    border-left: 15px solid #257798;
    z-index: 1;
}

/* 步骤左侧箭头（除第一个步骤）- 覆盖衔接处的空白 */
.step-item:not(:first-child)::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 0;
    border-top: 30px solid transparent;
    border-bottom: 30px solid transparent;
    border-left: 15px solid white; /* 与背景色一致，隐藏衔接缝隙 */
    z-index: 0;
}

/* 第一个步骤取消左侧多余样式 */
.step-item:first-child {
    border-radius: 4px 0 0 4px;
    padding-left: 15px;
}

/* 最后一个步骤取消右侧箭头，添加右侧圆角 */
.step-item:last-child {
    border-radius: 0 4px 4px 0;
    padding-right: 15px;
    margin-right: 0px;
}

/* 内容面板样式 */
.step-content {
    display: none;
    min-height: 300px;
}
.step-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* 页脚 */
.footer-section {
    position: relative;
    height: 508px;
    background: url('../assets/bg_2@2x.png') no-repeat center center;
    background-size: cover; 
    
}
.footer-top, .footer-bottom {
    padding: 0 10%;
}
.footer-bottom {
    display: flex;
}