/* 基础重置和变量 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-bg: #11132a;
    --primary-green: #25c583;
    --white-text: #fafafa;
    --gray-text: #98b2a5;
    --yellow-accent: #d0c462;
    --pink-accent: #8f6977;
    --light-green: #d6ed96;
    --light-gray: #c8d1d4;
    --brown-accent: #c7aaa5;
    --container-width: 1200px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

    .wechat-qr {
        display: inline-block;
        text-align: center;
        margin-right: 15px;
    }
    
    .qr-img {
        width: 8rem;
        height: 8rem;
        display: block;
        margin: 0 auto 5px;
    }
    
    .qr-text {
        font-size: 12px;
        color: #666;
        text-align: center;
    }
    .qr-group {
    display: flex;
    gap: 50px; /* 调整这个值来增加间距 */
}
    .back-to-top {
        cursor: pointer;
    }
.auth-form {
    width: 100%;
    max-width: 420px;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.auth-form.active {
    opacity: 1;
    transform: translateX(0);
    display: block; /* 保留这个属性 */
}
        
        /* 标签切换样式 */
        .auth-tabs {
            display: flex;
            margin-bottom: 20px;
            border-bottom: 1px solid #e2e8f0;
            background: white;
            border-radius: 8px 8px 0 0;
            overflow: hidden;
        }
        
        .tab-btn {
            flex: 1;
            padding: 12px;
            background: none;
            border: none;
            border-bottom: 2px solid transparent;
            cursor: pointer;
            font-size: 16px;
            color: #718096;
            transition: all 0.3s;
        }
        
        .tab-btn.active {
            color: #4299e1;
            border-bottom-color: #4299e1;
            font-weight: 500;
        }
        
        /* 表单元素样式 */
        .input-group {
            margin-bottom: 20px;
        }
        
        .input-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #4a5568;
        }
        
        .form-input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #e2e8f0;
            border-radius: 6px;
            font-size: 16px;
            box-sizing: border-box;
            transition: border-color 0.3s;
        }
        
        .form-input:focus {
            border-color: #4299e1;
            outline: none;
            box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
        }
        
        .code-wrapper {
            display: flex;
            gap: 10px;
        }
        
        .code-btn {
            padding: 0 15px;
            background: #4299e1;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            height: 46px;
            min-width: 110px;
            font-size: 14px;
            transition: background 0.3s;
        }
        
        .code-btn:hover {
            background: #3182ce;
        }
        
        .code-btn:disabled {
            background: #a0aec0;
            cursor: not-allowed;
        }
        
        .submit-btn {
            width: 100%;
            padding: 12px;
            background: #4299e1;
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            cursor: pointer;
            margin-top: 10px;
            transition: background 0.3s;
        }
        
        .submit-btn:hover {
            background: #3182ce;
        }
        
        .submit-btn:disabled {
            background: #a0aec0;
            cursor: not-allowed;
        }
        
        /* 提示信息样式 */
        .info-tip {
            background: #ebf8ff;
            color: #2b6cb0;
            padding: 12px;
            border-radius: 6px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            font-size: 14px;
        }
        
        .error-message {
            color: #e53e3e;
            font-size: 13px;
            margin-top: 5px;
            height: 18px;
        }
        

        .wechat-login {
            display: flex;
            flex-direction: column;
            align-items: center; 
            justify-content: center; 
            padding: 30px;
            width: 100%; 
        }
        
        .qrcode-loading {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 200px;
            color: #718096;
        }
        
        .qrcode-loading svg {
            width: 40px;
            height: 40px;
            margin-bottom: 15px;
        }
        
        .qrcode-tip {
            margin-top: 15px;
            color: #718096;
            font-size: 14px;
            text-align: center;
        }
        
        .qrcode-container {
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0 auto;
            width: 200px;
            height: 200px;
        }
        
        .bind-notice {
            background: #ebf8ff;
            color: #2b6cb0;
            padding: 12px;
            border-radius: 6px;
            margin-top: 20px;
            font-size: 14px;
            display: flex;
            align-items: center;
        }
        
        /* 弹窗样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal:not(.hidden) .modal-content {
    transform: translateY(0);
}
        
        .modal-content {
            background: white;
            border-radius: 8px;
            width: 90%;
            max-width: 400px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            overflow: hidden;
        }
        
        .modal-header {
            padding: 20px;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-header h3 {
            margin: 0;
            font-size: 18px;
            color: #2d3748;
        }
        
        .close-btn {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #718096;
            line-height: 1;
        }
        
        .modal-body {
            padding: 20px;
        }
        
        .wechat-bind-qrcode {
            text-align: center;
            margin-bottom: 20px;
        }
        
        /* 提示消息样式 */
        .toast-container {
            position: fixed;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 12px 24px;
            border-radius: 4px;
            z-index: 1000;
            animation: fadeIn 0.3s ease-out;
            max-width: 80%;
        }
        
        .toast-container.error {
            background: rgba(239, 68, 68, 0.9);
        }
        
        /* 加载动画 */
        .animate-spin {
            animation: spin 1.2s linear infinite;
        }
        
        .btn-loader {
            display: inline-block;
            width: 16px;
            height: 16px;
            border: 2px solid rgba(255,255,255,0.3);
            border-radius: 50%;
            border-top-color: #fff;
            animation: spin 1s ease-in-out infinite;
            margin-right: 8px;
            vertical-align: middle;
        }
        
        /* 辅助类 */
        .hidden {
            display: none !important;
        }
        
        /* 动画定义 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translate(-50%, -20px); }
            to { opacity: 1; transform: translate(-50%, 0); }
        }
        
        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
/* 输入框样式 */
.input-group {
    margin-bottom: 20px;
}

.input-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #4a5568;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 16px;
}

.code-wrapper {
    display: flex;
    gap: 10px;
}

.code-btn {
    padding: 0 15px;
    background: #4299e1;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.error-message {
    color: #e53e3e;
    font-size: 13px;
    margin-top: 5px;
}

/* 微信二维码样式 */
.wechat-login {
    text-align: center;
    padding: 20px 0;
}

.qrcode-loading {
    margin: 20px 0;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
        .auth-form {
            background: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            width: 100%;
            max-width: 420px;
            margin: 0 auto;
            display: none; /* 默认隐藏 */
        }
        
        .auth-form.active {
            display: block; /* 激活时显示 */
        }
        
        /* 标签切换样式 */
        .auth-tabs {
            display: flex;
            margin-bottom: 20px;
            border-bottom: 1px solid #e2e8f0;
            background: white;
            border-radius: 8px 8px 0 0;
            overflow: hidden;
        }
        
        .tab-btn {
            flex: 1;
            padding: 12px;
            background: none;
            border: none;
            border-bottom: 2px solid transparent;
            cursor: pointer;
            font-size: 16px;
            color: #718096;
            transition: all 0.3s;
        }
        
        .tab-btn.active {
            color: #4299e1;
            border-bottom-color: #4299e1;
            font-weight: 500;
        }
        
        /* 表单元素样式 */
        .input-group {
            margin-bottom: 20px;
        }
        
        .input-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #4a5568;
        }
        
        .form-input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #e2e8f0;
            border-radius: 6px;
            font-size: 16px;
            box-sizing: border-box;
            transition: border-color 0.3s;
        }
        
        .form-input:focus {
            border-color: #4299e1;
            outline: none;
            box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
        }
        
        .code-wrapper {
            display: flex;
            gap: 10px;
        }
        
        .code-btn {
            padding: 0 15px;
            background: #4299e1;
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            height: 46px;
            min-width: 110px;
            font-size: 14px;
            transition: background 0.3s;
        }
        
        .code-btn:hover {
            background: #3182ce;
        }
        
        .code-btn:disabled {
            background: #a0aec0;
            cursor: not-allowed;
        }
        
        .submit-btn {
            width: 100%;
            padding: 12px;
            background: #4299e1;
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            cursor: pointer;
            margin-top: 10px;
            transition: background 0.3s;
        }
        
        .submit-btn:hover {
            background: #3182ce;
        }
        
        .submit-btn:disabled {
            background: #a0aec0;
            cursor: not-allowed;
        }
        
        /* 提示信息样式 */
        .info-tip {
            background: #ebf8ff;
            color: #2b6cb0;
            padding: 12px;
            border-radius: 6px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            font-size: 14px;
        }
        
        .error-message {
            color: #e53e3e;
            font-size: 13px;
            margin-top: 5px;
            height: 18px;
        }
        

        .wechat-login {
            display: flex;
            flex-direction: column;
            align-items: center; 
            justify-content: center; 
            padding: 30px;
            width: 100%; 
        }
        
        .qrcode-loading {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 200px;
            color: #718096;
        }
        
        .qrcode-loading svg {
            width: 40px;
            height: 40px;
            margin-bottom: 15px;
        }
        
        .qrcode-tip {
            margin-top: 15px;
            color: #718096;
            font-size: 14px;
            text-align: center;
        }
        
        .qrcode-container {
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0 auto;
            width: 200px;
            height: 200px;
        }
        
        .bind-notice {
            background: #ebf8ff;
            color: #2b6cb0;
            padding: 12px;
            border-radius: 6px;
            margin-top: 20px;
            font-size: 14px;
            display: flex;
            align-items: center;
        }
        
        /* 弹窗样式 */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
        }
        
        .modal-content {
            background: white;
            border-radius: 8px;
            width: 90%;
            max-width: 400px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            overflow: hidden;
        }
        
        .modal-header {
            padding: 20px;
            border-bottom: 1px solid #e2e8f0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .modal-header h3 {
            margin: 0;
            font-size: 18px;
            color: #2d3748;
        }
        
        .close-btn {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #718096;
            line-height: 1;
        }
        
        .modal-body {
            padding: 20px;
        }
        
        .wechat-bind-qrcode {
            text-align: center;
            margin-bottom: 20px;
        }
        
        /* 提示消息样式 */
        .toast-container {
            position: fixed;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 12px 24px;
            border-radius: 4px;
            z-index: 1000;
            animation: fadeIn 0.3s ease-out;
            max-width: 80%;
        }
        
        .toast-container.error {
            background: rgba(239, 68, 68, 0.9);
        }
        
        /* 加载动画 */
        .animate-spin {
            animation: spin 1.2s linear infinite;
        }
        
        .btn-loader {
            display: inline-block;
            width: 16px;
            height: 16px;
            border: 2px solid rgba(255,255,255,0.3);
            border-radius: 50%;
            border-top-color: #fff;
            animation: spin 1s ease-in-out infinite;
            margin-right: 8px;
            vertical-align: middle;
        }
        
        /* 辅助类 */
        .hidden {
            display: none !important;
        }
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(17, 19, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    flex-shrink: 0;
}

.logo-link {
    font-family: 'AviLockBold', sans-serif;
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-green);
    text-decoration: none;
    letter-spacing: -1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-left: 60px;
}

.nav-item {
    color: var(--white-text);
    text-decoration: none;
    font-size: 16px;
    position: relative;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-item:hover {
    color: var(--primary-green);
}

.collect-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.collect-btn:hover .collect-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
/* 核心对齐方案 */
.logo-link {
  display: inline-flex;     /* 弹性布局保持同行 */
  align-items: center;     /* 垂直居中 */
  gap: 10px;              /* 图片文字间距 */
  line-height: 1;         /* 消除行高影响 */
}

.logo-img {
  height: 32px;           /* 固定高度 */
  width: auto;           /* 自动宽度保持比例 */
  vertical-align: middle; /* 旧浏览器兼容 */
}

.logo-text {
  font-size: 18px;       /* 与图片高度匹配 */
  font-weight: bold;
  padding-top: 2px;      /* 微调文字基线对齐 */
}
@media (max-width: 768px) {
  .logo-img { height: 24px; }
  .logo-text { font-size: 16px; }
}
.collect-tooltip {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(0, 0, 0, 0.9);
    color: var(--white-text);
    padding: 12px 16px;
    border-radius: var(--border-radius);
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1001;
}

.collect-tooltip kbd {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
    margin: 0 2px;
}

.user-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.help-link, .vip-link {
    color: var(--white-text);
    text-decoration: none;
    font-size: 16px;
    transition: var(--transition);
}

.help-link:hover, .vip-link:hover {
    color: var(--primary-green);
}

.login-btn {
    background: var(--primary-green);
    color: white;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.login-btn:hover {
    background: #1ea574;
    transform: translateY(-1px);
}

/* 主要内容区域 */
.main-content {
    margin-top: 70px;
    min-height: calc(100vh - 70px);
}

/* 下载器输入区 */
.download-section {
    background: linear-gradient(135deg, var(--primary-bg) 0%, #1a1c3a 100%);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.download-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/pic/bg.jpeg') center/cover;
    opacity: 0.1;
    z-index: 0;
}

.download-content {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.download-info {
    margin-bottom: 40px;
}
.download-info .title {
    font-family: 'AviLockBold', sans-serif;
    font-size: 72px;
    font-weight: bold;
    color: var(--primary-green);
    margin-bottom: 20px;
    line-height: 1;
    text-shadow: 0 0 20px rgba(37, 197, 131, 0.3);
}

.download-info .subtitle {
    font-size: 1.2rem;
    color: var(--white-text);
    margin-bottom: 20px;
    font-weight: 500;
}

.stats {
    margin: 20px 0;
    font-size: 1rem;
    color: #888;
}

.stats-item {
    background: rgba(37, 197, 131, 0.1);
    color: var(--primary-green);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 16px;
    border: 1px solid rgba(37, 197, 131, 0.3);
}

.description {
    font-size: 18px;
    color: var(--gray-text);
    margin-bottom: 12px;
}

.support-text {
    font-size: 20px;
    color: var(--white-text);
    font-weight: 500;
}

.download-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 50px 45px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    min-width: 480px;
}

.input-wrapper {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.url-input {
    flex: 1;
    padding: 20px 24px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--white-text);
    font-size: 18px;
    transition: var(--transition);
    min-height: 24px;
}

.url-input:focus {
    outline: none;
    border-color: var(--primary-green);
    background: rgba(255, 255, 255, 0.08);
}

.url-input::placeholder {
    color: var(--gray-text);
}

.parse-btn {
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 20px 40px;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    min-width: 140px;
}

.parse-btn:hover {
    background: #1ea574;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 197, 131, 0.4);
}

.quick-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white-text);
    padding: 16px 28px;
    border-radius: 12px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    min-width: 140px;
    justify-content: center;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-green);
}

/* 使用步骤部分 */
.steps-section {
    background: #ffffff;
    color: #333;
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 42px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 16px;
    color: #333;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: #666;
    margin-bottom: 60px;
}

.steps-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
    align-items: start;
}

.step-item {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-green);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 24px;
    box-shadow: 0 8px 20px rgba(37, 197, 131, 0.3);
}

.step-content {
    position: relative;
}

.step-gif {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 16px;
}

.step-icon {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

/* 功能特色部分 */
.features-section {
    background: var(--primary-bg);
    padding: 100px 0;
}

.features-section .section-title {
    color: var(--white-text);
}

.features-section .section-subtitle {
    color: var(--gray-text);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-green);
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    color: white;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--white-text);
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 16px;
    color: var(--gray-text);
    line-height: 1.5;
}

/* FAQ部分 */
.faq-section {
    background: #f8f9fa;
    color: #333;
    padding: 100px 0;
}

.faq-section .section-title {
    color: #333;
}

.faq-actions {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 60px;
}

.faq-link {
    color: var(--primary-green);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
}

.faq-link:hover {
    color: #1ea574;
}

.faq-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 24px;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-green);
    box-shadow: 0 5px 20px rgba(37, 197, 131, 0.1);
}

.faq-question {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.faq-answer {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* 工具推荐部分 */
.tools-section {
    background: var(--primary-bg);
    padding: 100px 0;
}

.tools-section .section-title {
    color: var(--white-text);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.tool-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    color: var(--white-text);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.tool-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-green);
    transform: translateY(-3px);
}

.tool-icon {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 16px;
}

.tool-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--white-text);
}

.tool-desc {
    font-size: 14px;
    color: var(--gray-text);
    line-height: 1.4;
}

/* 底部footer */
.footer {
    background: #0d0f1f;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: auto auto auto;
    gap: 60px;
    align-items: start;
    margin-bottom: 40px;
}

.footer-links, .footer-tools {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-link, .footer-tool {
    color: var(--gray-text);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
}

.footer-link:hover, .footer-tool:hover {
    color: var(--primary-green);
}

.footer-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

    .sidebar-btn, .sidebar-top-btn {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background: rgba(192, 192, 192, 0.1);
        border: 1px solid rgba(192, 192, 192, 0.2);
        color: var(--white-text);
        cursor: pointer;
        transition: var(--transition);
        margin-bottom: 15px;
    }
    
    /* 返回顶部按钮特殊样式 */
    .sidebar-top-btn {
        background: rgba(37, 197, 131, 0.1); /* 使用主题绿色 */
        border-color: rgba(37, 197, 131, 0.3);
    }
    
    .sidebar-top-btn:hover {
        background: rgba(37, 197, 131, 0.2);
        border-color: var(--primary-green);
    }
    
    .sidebar-top-btn svg {
        margin-bottom: 2px;
    }
    
    .sidebar-top-btn span {
        font-size: 12px;
    }
    
    /* 侧边栏图标样式 */
    .sidebar-icon {
        width: 24px;
        height: 24px;
        object-fit: contain;
    }

.copyright {
    color: var(--gray-text);
    font-size: 14px;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.legal-link {
    color: var(--gray-text);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.legal-link:hover {
    color: var(--primary-green);
}

/* 侧边栏工具 */
.sidebar-tools {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-btn {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-green);
    transform: scale(1.1);
}

.sidebar-icon {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

/* 登录弹窗 */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}



.modal-content {
    background: white;
    border-radius: 16px;
    width: 400px;
    max-width: 90vw;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid #e0e0e0;
}

.modal-title {
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: 24px;
}

.phone-input {
    display: flex;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 20px;
}

.country-code {
    background: #f5f5f5;
    padding: 16px;
    color: #333;
    font-size: 16px;
    border-right: 1px solid #e0e0e0;
}

.phone-field {
    flex: 1;
    padding: 16px;
    border: none;
    outline: none;
    font-size: 16px;
    color: #333;
}

.login-submit {
    width: 100%;
    background: var(--primary-green);
    color: white;
    border: none;
    padding: 16px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 20px;
}

.login-submit:hover {
    background: #1ea574;
}

.login-agreement {
    font-size: 14px;
    color: #666;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    cursor: pointer;
}

.agreement-checkbox {
    width: 16px;
    height: 16px;
    margin-top: 2px;
}

.agreement-link {
    color: var(--primary-green);
    text-decoration: none;
}

.agreement-link:hover {
    text-decoration: underline;
}

/* 产品列表下拉菜单 */
.dropdown-item {
    position: relative;
    display: inline-block;
}

.dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--white-text);
    text-decoration: none;
    font-size: 16px;
}

.dropdown-trigger:hover {
    color: var(--primary-green);
}

.dropdown-trigger i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.dropdown-item:hover .dropdown-trigger i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-bg);
    border: 1px solid rgba(37, 197, 131, 0.2);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    margin-top: 20px;
    transition: all 0.3s ease;
    z-index: 2000;
    min-width: 800px;
    max-width: 900px;
}

.dropdown-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    margin-top: 10px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 30px 25px 20px;
}

.product-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-decoration: none;
    color: var(--white-text);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card:hover {
    background: rgba(37, 197, 131, 0.1);
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 197, 131, 0.2);
}

.product-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    flex: 1;
    min-width: 0;
}

.product-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--white-text);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.product-desc {
    font-size: 13px;
    color: var(--gray-text);
    line-height: 1.4;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
    margin-bottom: 6px;
    line-height: 1.2;
}

.product-tag.hot {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
}

.product-tag.new {
    background: linear-gradient(45deg, var(--primary-green), #20bf6b);
    color: white;
}

.product-tag.recommend {
    background: linear-gradient(45deg, #3742fa, #5352ed);
    color: white;
}

.dropdown-footer {
    padding: 15px 25px 25px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.qr-group {
    font-size: 0;  /* 消除 inline-block 元素之间的空白间隙 */
}

.qr-box {
    display: inline-block;
    width: 120px;  /* 设置固定宽度 */
    vertical-align: top;  /* 顶部对齐 */
    font-size: 14px;  /* 重置字体大小 */
}
.view-all-btn {
    color: var(--primary-green);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.view-all-btn:hover {
    color: #1ea574;
    transform: translateX(3px);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        padding: 0 16px;
    }

    .download-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .dropdown-menu {
        min-width: 600px;
        max-width: 700px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 25px 20px 15px;
    }
}

@media (max-width: 768px) {
    .nav-wrapper {
        flex-direction: column;
        height: auto;
        padding: 16px 0;
    }

    .nav-menu {
        margin-left: 0;
        margin-top: 16px;
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .user-actions {
        margin-top: 16px;
    }

    .dropdown-menu {
        min-width: 90vw;
        max-width: 95vw;
        left: 5%;
        transform: none;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 20px 15px 10px;
    }

    .product-card {
        padding: 16px;
        gap: 12px;
    }

    .product-icon {
        width: 40px;
        height: 40px;
    }

    .product-name {
        font-size: 15px;
    }

    .product-desc {
        font-size: 12px;
    }

    .download-info .title {
        font-size: 48px;
    }

    .steps-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .faq-list {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}