/* 限定样式作用域，避免影响其他页面元素 */
body {
    margin: 0;
    box-sizing: border-box;
}

body.no-scroll {
    overflow: hidden;
}

/* 导航栏基础样式 */
.navbar {
    display: flex;
    justify-content:left;
    align-items: center;
    padding: 0 5%;
    padding-top: 10px;
    background-color: #36f;
    font-family: Arial, sans-serif;
    border-bottom: 3px solid #36f;
    padding-bottom: 0;
    gap: 20px;
    position: relative;
    z-index: 1000;
    box-sizing: border-box;
}

.navbar .logo {
    height: 50px;
}

.navbar .logo img {
    height: 100%;
}

/* 导航菜单样式 */
.navbar .nav-menu {
    flex: 1;
    justify-content: center;
    display: flex;
    list-style: none;
    flex-wrap: nowrap;
    padding-bottom: 20px;
    margin-bottom: -20px;
    position: relative;
    box-sizing: border-box;
}
.navbar .nav-menu:active {
    cursor: grabbing;
}

.navbar .nav-menu::-webkit-scrollbar {
    display: none;
}

.navbar .nav-menu::-webkit-scrollbar-track {
    display: none;
}

.navbar .nav-menu::-webkit-scrollbar-thumb {
    display: none;
}

.navbar .nav-menu::-webkit-scrollbar-thumb:hover {
    display: none;
}

.navbar .nav-menu li {
    flex-shrink: 0;
    margin: 0 15px;
    white-space: nowrap;
    height: 42px;
    position: relative;
}

.navbar .nav-menu a {
    text-decoration: none;
    color: #fff;
    font-size: 16px;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s;
    padding-bottom: 20px;
}

.navbar .nav-menu .menu-item-level-1 a:hover:after,
.navbar .nav-menu .menu-item-level-1 a.active:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: #fff;
}

/* 下拉菜单样式 - 仅对桌面版生效 */
.desktop-nav .dropdown-menu {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #36f;
    min-width: 200px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    z-index: 1000;
    list-style: none;
    padding: 0;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    transform: translate(-20px,-10px);
    pointer-events: none;
    contain: layout style;
    box-sizing: border-box;
}

/* 悬停时显示下拉菜单 - 仅对桌面版生效 */
.desktop-nav .dropdown-custom:hover > .dropdown-menu,
.desktop-nav .dropdown-custom.active > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}
.dropdown-menu.dropdown-menu-level-1{
    min-width:120px;
}
/* 下拉菜单项样式 - 仅对桌面版生效 */
.desktop-nav .menu-item-level-2{
    margin: 0!important;
    padding: 0!important;
    position: relative!important;
}

.desktop-nav .menu-item-level-2 a {
    display: block!important;
    padding: 12px 20px!important;
    color: #fff!important;
    text-decoration: none!important;
    transition: background-color 0.3s!important;
}

.desktop-nav .dropdown-menu a:hover {
    background-color: #2a56cc;
}

.desktop-nav .dropdown-menu a:hover:after,
.desktop-nav .dropdown-menu a.active:after {
    content: none;
}

/* 父级菜单项保持原样 - 仅对桌面版生效 */
.desktop-nav .nav-menu > .dropdown-custom > a:hover:after,
.desktop-nav .nav-menu > .dropdown-custom > a.active:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: #fff;
}

.desktop-nav .dropdown-custom {
    position: relative;
}

.desktop-nav .dropdown-custom .dropdown-menu {
    left: 0;
    top: 100%;
}

/* 嵌套下拉菜单定位到右侧 - 仅对桌面版生效 */
.desktop-nav .dropdown-menu .dropdown-menu {
    top: 0;
    left: 100%;
}

/* 登录/注册按钮样式 */
.auth-button {
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    transition: background-color 0.3s, color 0.3s;
    white-space: nowrap;
    cursor: pointer;
    box-sizing: border-box;
}
.desktop.auth-button{
    border: 1px solid #fff;
    color: #fff;
}
.mobile.auth-button{
    border: 1px solid #36f;
    color: #36f;
}
.auth-button:hover {
    background: white;
    color: #3366ff;
}

/* 手机导航按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    box-sizing: border-box;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* 手机导航菜单遮罩层 */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    box-sizing: border-box;
}

.mobile-nav-overlay.active {
    display: block;
    opacity: 1;
}

/* 手机导航菜单容器 */
.mobile-nav-container {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background-color: #fff;
    z-index: 1001;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
}

.mobile-nav-overlay.active .mobile-nav-container {
    right: 0;
}

/* 手机导航头部 */
.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid #eee;
    box-sizing: border-box;
}

.mobile-nav-header .logo img {
    height: 40px;
}

.mobile-nav-close {
    font-size: 28px;
    color: #999;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
    box-sizing: border-box;
}

.mobile-nav-close:hover {
    background: #f5f5f5;
    color: #333;
}

/* 手机导航菜单项 */
.mobile-nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.mobile-nav-menu li {
    border-bottom: 1px solid #eee;
}

.mobile-nav-menu a {
    display: block;
    padding: 15px 20px;
    text-decoration: none;
    color: #333;
    font-size: 16px;
    transition: background-color 0.3s;
    box-sizing: border-box;
    position: relative;
}

.mobile-nav-menu a:hover,
.mobile-nav-menu a.active {
    background-color: #f5f5f5;
    color: #3366ff;
}


/* 手机版下拉菜单项样式 - 专门为移动端设计 */
.mobile-nav-menu .dropdown-custom .dropdown-menu {
    display: none;
    background-color: #f9f9f9;
    padding-left: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-nav-menu .dropdown-custom.active > .dropdown-menu {
    display: block;
    max-height: 1000px;
}

.mobile-nav-menu .dropdown-custom a {
    position: relative;
}


/* 手机版下拉菜单项 */
.mobile-nav-menu .dropdown-menu {
    padding: 0;
    border-top: 1px solid #eee;
    background-color: #f9f9f9;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.mobile-nav-menu .dropdown-custom.active > .dropdown-menu {
    max-height: 1000px;
}


.mobile-nav-menu .dropdown-menu li {
    border-bottom: 1px solid #eee;
}

.mobile-nav-menu .dropdown-menu a {
    padding: 12px 20px 12px 40px;
    color: #666;
    font-size: 15px;
}

.mobile-nav-menu .dropdown-menu a:hover,
.mobile-nav-menu .dropdown-menu a.active {
    background-color: #eeeeff;
    color: #3366ff;
}

/* 手机版下拉菜单箭头 */
.mobile-nav-menu .dropdown-custom > a .caret {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    transition: transform 0.3s ease;
}

.mobile-nav-menu .dropdown-custom.active > a .caret {
    transform: translateY(-50%) rotate(180deg);
}

/* 手机版登录按钮 */
.mobile-auth {
    padding: 20px;
    box-sizing: border-box;
}

.mobile-auth .auth-button {
    display: block;
    text-align: center;
}

.desktop-nav {
    padding-left: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .desktop-nav,
    .desktop-auth {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .navbar {
        justify-content: space-between;
        padding: 15px 30px;
    }
    
    /* 防止移动端出现横向滚动条 */
    html, body {
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .mobile-nav-menu .dropdown-custom.active > .dropdown-menu {
        position: unset!important;
    }
}

@media (min-width: 768px) {
    .mobile-nav-overlay {
        display: none !important;
    }
}

/* 登录/注册模态框样式 */
.auth-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1001;
    background: #fff;
    border-radius: 12px;
    width: 440px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease-out;
    box-sizing: border-box;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -60%);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.modal-content {
    position: relative;
    padding: 40px;
    box-sizing: border-box;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
    box-sizing: border-box;
}

.close-btn:hover {
    background: #f5f5f5;
    color: #333;
}

.tab-container {
    display: flex;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    box-sizing: border-box;
}

.tab {
    flex: 1;
    padding: 15px 0;
    text-align: center;
    font-size: 16px;
    font-weight: 500;
    color: #999;
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
    box-sizing: border-box;
}

.tab.active {
    color: #3366ff;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: #3366ff;
}

.form-container {
    color: #333;
    box-sizing: border-box;
}

.form-group {
    margin-bottom: 20px;
    box-sizing: border-box;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    box-sizing: border-box;
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

.input-container input {
    width: 100%;
    padding: 12px 15px 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s, box-shadow 0.3s;
    background: #f9f9f9;
    box-sizing: border-box;
}

.input-container input:focus {
    outline: none;
    border-color: #3366ff;
    background: #fff;
}

.icon {
    position: absolute;
    left: 15px;
    width: 18px;
    height: 18px;
    z-index: 2;
    opacity: 0.6;
}

.user-icon::before {
    content: '👤';
    font-size: 16px;
}

.password-icon::before {
    content: '🔒';
    font-size: 16px;
}

.phone-icon::before {
    content: '📱';
    font-size: 16px;
}

.verification-icon::before {
    content: '📝';
    font-size: 16px;
}

.verification-container {
    display: flex;
    gap: 10px;
    box-sizing: border-box;
}

.verification-input {
    flex: 1;
    box-sizing: border-box;
}

.get-code-btn {
    padding: 12px 20px;
    background: #3366ff;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
    box-sizing: border-box;
}

.get-code-btn:hover {
    background: #b71c1c;
    transform: translateY(-1px);
}

.get-code-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    box-sizing: border-box;
}

.checkbox-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: #666;
    box-sizing: border-box;
}

.checkbox-container input {
    margin-right: 8px;
}

.forgot-password {
    color: #3366ff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.forgot-password:hover {
    color: #b71c1c;
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: #3366ff;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 25px;
    box-sizing: border-box;
}

.login-btn:hover {
    background: #b71c1c;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.3);
}

.register-prompt {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #eee;
    box-sizing: border-box;
}

.prompt-title {
    font-size: 14px;
    color: #333;
    margin-bottom: 5px;
    font-weight: 500;
    box-sizing: border-box;
}

.prompt-subtitle {
    font-size: 12px;
    color: #999;
    margin-bottom: 10px;
    box-sizing: border-box;
}

.register-link {
    color: #3366ff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s;
}

.register-link:hover {
    color: #b71c1c;
}

.hidden {
    display: none !important;
}

/* 响应式设计 */
@media (max-width: 1200px) and (min-width: 769px) {
    .navbar .nav-menu {
        justify-content: left;
        overflow-x: auto;
        overflow-y: visible;
        scrollbar-width: none;
        -ms-overflow-style: none;
        -webkit-overflow-scrolling: touch;
        cursor: grab;
    }
    
    .navbar .nav-menu::-webkit-scrollbar {
        display: none;
    }
    
    .navbar .nav-menu::-webkit-scrollbar-track {
        display: none;
    }
    
    .navbar .nav-menu::-webkit-scrollbar-thumb {
        display: none;
    }
    
    .navbar .nav-menu::-webkit-scrollbar-thumb:hover {
        display: none;
    }
    
    .navbar .nav-menu:active {
        cursor: grabbing;
    }
}
@media (max-width: 768px) {
    .modal {
        width: 90%;
        max-width: 400px;
    }

    .modal-content {
        padding: 30px 20px;
    }
}
@media (max-width: 768px) {
    .modal {
        width: 90%;
        max-width: 400px;
    }

    .modal-content {
        padding: 30px 20px;
    }
}

/* 针对更窄屏幕的进一步优化 */
@media (max-width: 480px) {
    .modal {
        width: 90%;
        max-width: none;
    }
    
    .modal-content {
        padding: 20px 15px;
    }
    
    .tab-container {
        margin-bottom: 20px;
    }
    
    .tab {
        padding: 12px 0;
        font-size: 14px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group label {
        font-size: 13px;
        margin-bottom: 6px;
    }
    
    .input-container input {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .login-btn {
        padding: 12px;
        font-size: 14px;
        margin-bottom: 20px;
    }
    
    .register-prompt {
        padding-top: 15px;
    }
    
    .prompt-title {
        font-size: 13px;
        margin-bottom: 3px;
    }
    
    .prompt-subtitle {
        font-size: 11px;
        margin-bottom: 8px;
    }
    
    .register-link {
        font-size: 13px;
    }
    
    .form-options {
        margin-bottom: 20px;
    }
    
    .checkbox-container {
        font-size: 13px;
    }
    
    .forgot-password {
        font-size: 13px;
    }
}