/* ============================================
   设计令牌系统 (Design Tokens) - CSS变量
   ============================================ */
:root {
    /* 颜色系统 */
    --color-primary: #2563EB;
    --color-primary-light: #60A5FA;
    --color-primary-dark: #1E40AF;
    --color-secondary: #2A7AF2;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;

    /* 中性色 */
    --color-neutral-0: #FFFFFF;
    --color-neutral-50: #F9FAFB;
    --color-neutral-100: #F3F4F6;
    --color-neutral-200: #E5E7EB;
    --color-neutral-300: #D1D5DB;
    --color-neutral-500: #6B7280;
    --color-neutral-600: #4B5563;
    --color-neutral-700: #374151;
    --color-neutral-800: #1F2937;
    --color-neutral-900: #111827;

    /* 语义色 */
    --color-text-primary: var(--color-neutral-900);
    --color-text-secondary: var(--color-neutral-600);
    --color-text-tertiary: var(--color-neutral-500);
    --color-bg-primary: var(--color-neutral-0);
    --color-bg-subtle: #F8FAFF;
    --color-border: var(--color-neutral-200);

    /* 渐变系统 */
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-bg: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);

    /* 阴影系统 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 15px rgba(97, 57, 246, 0.15);
    --shadow-lg: 0 12px 36px rgba(37, 99, 235, 0.2);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.3);

    /* 间距系统 (8px基准) */
    --spacing-xs: 0.5rem;   /* 8px */
    --spacing-sm: 1rem;     /* 16px */
    --spacing-md: 1.5rem;   /* 24px */
    --spacing-lg: 2rem;     /* 32px */
    --spacing-xl: 3rem;     /* 48px */
    --spacing-2xl: 4rem;    /* 64px */
    --spacing-3xl: 6.25rem; /* 100px */

    /* 圆角系统 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* 字体系统 */
    --font-primary: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
                    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
                    "Segoe UI", system-ui, sans-serif;
    --font-mono: "SF Mono", "Monaco", "Consolas", "Courier New", monospace;

    /* 字号系统 (模块化比例 1.250) */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-md: 1.125rem;   /* 18px */
    --font-size-lg: 1.25rem;    /* 20px */
    --font-size-xl: 1.563rem;   /* 25px */
    --font-size-2xl: 1.953rem;  /* 31px */
    --font-size-3xl: 2.441rem;  /* 39px */
    --font-size-4xl: 3.052rem;  /* 49px */

    /* 字重系统 */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* 行高系统 */
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;

    /* 过渡动画 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* 断点系统 (仅作参考) */
    --breakpoint-mobile: 480px;
    --breakpoint-tablet: 768px;
    --breakpoint-desktop: 1024px;
}

/* 基础样式重置 - WCAG 2.1 AA 无障碍设计 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 无障碍设计基础 */
*:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* 减少动画偏好设置 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .btn-primary {
        background: #000000;
        border: 2px solid #ffffff;
    }

    .btn-secondary {
        background: #ffffff;
        color: #000000;
        border: 2px solid #000000;
    }
}

/* 屏幕阅读器专用样式 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 跳转链接 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #2563EB;
    color: white;
    padding: 8px;
    z-index: 100000;
    text-decoration: none;
    border-radius: 4px;
}

.skip-link:focus {
    top: 6px;
}

/* 确保表单标签与输入框关联 */
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #1a202c;
}

/* 改善焦点可见性 */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 3px solid #2563EB;
    outline-offset: 2px;
}

/* Context7标准：触摸目标优化 - 最小44px触摸区域 */
button,
.btn-primary,
.btn-secondary,
.btn-outline,
.nav-btn,
.floating-btn,
.btn-tertiary,
.btn-urgent,
.btn-ai,
.btn-final,
.close,
.copy-btn,
input[type="submit"],
input[type="button"],
a.btn,
.nav-menu a,
.close,
.faq-question {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

/* 移动端点击反馈增强 */
@media (hover: none) and (pointer: coarse) {
    button:active,
    .btn-primary:active,
    .btn-secondary:active,
    .btn-tertiary:active,
    .nav-btn:active,
    .floating-btn:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    overflow-x: hidden;
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(97, 57, 246, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

/* ====================================================
   方案B：Logo固定左对齐 + 菜单紧随 + 按钮右对齐
   优势：符合F型阅读习惯，品牌识别优先，易扩展
   ==================================================== */

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    height: 70px;
    /* 关键：使用 gap 控制子元素间距，避免 margin 导致的布局偏移 */
    gap: 0;
}

/* Logo区域：固定左对齐，不受其他元素影响 */
.nav-logo {
    /* 固定宽度确保Logo位置稳定，防止菜单长度变化导致Logo位移 */
    flex-shrink: 0;
    margin-right: 48px; /* Logo与菜单的间距 */
}

/* Logo链接样式：确保<a>标签不影响布局 */
.nav-logo a {
    display: block; /* 将inline元素改为block，避免额外空白 */
    text-decoration: none; /* 移除下划线 */
    color: inherit; /* 继承父元素颜色 */
    margin: 0;
    padding: 0;
}

.nav-logo h2 {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 24px;
    font-weight: 700;
    margin: 0;
    white-space: nowrap; /* 防止Logo文字换行 */
    /* 备用方案：不支持background-clip的浏览器 */
    color: #2563EB;
}

/* 为支持background-clip的浏览器设置透明色 */
@supports (background-clip: text) or (-webkit-background-clip: text) {
    .nav-logo h2 {
        color: transparent;
    }
}

/* 导航菜单：紧随Logo，占据剩余空间 */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px; /* 菜单项之间的间距 */
    margin: 0;
    padding: 0;
    /* flex-grow: 1 让菜单占据中间剩余空间，推动右侧按钮到最右边 */
    flex-grow: 1;
    /* 可选：如果希望菜单项居中对齐，取消下面的注释 */
    /* justify-content: center; */
}

.nav-menu a {
    text-decoration: none;
    color: #1a202c;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    padding: 8px 12px;
    border-radius: 4px;
    min-height: 44px;
    display: flex;
    align-items: center;
}

.nav-menu a:focus {
    outline: 3px solid #2563EB;
    outline-offset: 2px;
    background: rgba(97, 57, 246, 0.1);
}

.nav-menu a:hover {
    color: #2563EB;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

/* CTA按钮：固定右对齐 */
.nav-btn {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(97, 57, 246, 0.3);
    /* 固定宽度，防止文字变化导致布局shift */
    white-space: nowrap;
    flex-shrink: 0;
    /* 自动推到最右侧 */
    margin-left: auto;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(97, 57, 246, 0.4);
}

.nav-btn:focus {
    outline: 3px solid #2563EB;
    outline-offset: 3px;
}

.nav-btn:active {
    transform: translateY(0);
}

/* ====================================================
   响应式设计：导航栏断点优化
   桌面端(>1024px) | 平板端(768-1024px) | 移动端(<768px)
   ==================================================== */

/* 大屏幕优化 (>1200px) - 增加最大宽度和间距 */
@media (min-width: 1200px) {
    .nav-container {
        max-width: 1200px;
    }

    .nav-menu {
        gap: 40px; /* 大屏幕增加菜单项间距 */
    }

    .nav-logo {
        margin-right: 56px; /* 增加Logo与菜单间距 */
    }
}

/* 平板端 (768px - 1024px) - 优化间距 */
@media (min-width: 768px) and (max-width: 1024px) {
    .nav-container {
        padding: 0 24px;
    }

    .nav-logo {
        margin-right: 32px; /* 减少Logo间距 */
    }

    .nav-logo h2 {
        font-size: 22px; /* 略微缩小Logo字体 */
    }

    .nav-menu {
        gap: 24px; /* 减少菜单项间距 */
    }

    .nav-menu a {
        font-size: 15px;
        padding: 6px 10px;
    }

    .nav-btn {
        padding: 10px 20px;
        font-size: 15px;
    }
}

/* 小平板 (600px - 768px) - 进一步压缩 */
@media (min-width: 600px) and (max-width: 768px) {
    .nav-logo h2 {
        font-size: 20px;
    }

    .nav-menu {
        gap: 16px;
    }

    .nav-menu a {
        font-size: 14px;
        padding: 6px 8px;
    }
}

/* 移动端 (<768px) - 汉堡菜单模式 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 16px;
        height: 60px; /* 移动端降低导航栏高度 */
    }

    /* Logo保持左对齐 */
    .nav-logo {
        margin-right: auto; /* 重要：确保Logo在移动端也保持左对齐 */
    }

    .nav-logo h2 {
        font-size: 20px;
    }

    /* 隐藏桌面菜单 */
    .nav-menu {
        display: none;
    }

    /* CTA按钮移动端优化 */
    .nav-btn {
        padding: 10px 16px;
        font-size: 14px;
        min-height: 44px;
        margin-left: 12px; /* 减少按钮左侧间距 */
    }

    /* 汉堡菜单按钮显示 */
    .mobile-menu-toggle {
        display: flex;
        order: -1; /* 放在按钮之前 */
        margin-left: auto;
        margin-right: 12px;
    }
}

/* 小屏手机 (<480px) - 极致压缩 */
@media (max-width: 480px) {
    .nav-container {
        padding: 0 12px;
        height: 56px;
    }

    .nav-logo h2 {
        font-size: 18px;
    }

    .nav-btn {
        padding: 8px 12px;
        font-size: 13px;
        border-radius: 6px;
    }
}

/* 超小屏 (<375px) - iPhone SE等 */
@media (max-width: 375px) {
    .nav-logo h2 {
        font-size: 16px;
    }

    .nav-btn {
        padding: 8px 10px;
        font-size: 12px;
    }
}

/* ====================================================
   性能优化：减少重绘和回流
   ==================================================== */

/* 使用 will-change 提示浏览器优化动画 */
.navbar {
    will-change: background, box-shadow;
}

.nav-btn,
.nav-menu a {
    will-change: transform;
}

/* 使用 contain 优化渲染性能 */
.nav-logo {
    contain: layout style;
}

/* ====================================================
   高对比度模式适配（无障碍优化）
   ==================================================== */

@media (prefers-contrast: high) {
    .navbar {
        border-bottom: 2px solid #000;
    }

    .nav-logo h2 {
        -webkit-text-fill-color: #000;
        color: #000;
    }

    .nav-menu a {
        color: #000;
    }

    .nav-btn {
        background: #000;
        color: #fff;
        border: 2px solid #000;
    }
}

/* ====================================================
   减少动画模式（无障碍优化）
   ==================================================== */

@media (prefers-reduced-motion: reduce) {
    .navbar,
    .nav-btn,
    .nav-menu a,
    .nav-menu a::after {
        transition: none;
    }

    .nav-btn:hover {
        transform: none;
    }
}

/* 首屏横幅 */
.hero {
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%236139F6" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
    line-height: 1.3; /* 改善可读性 */
    /* 为不支持 background-clip 的浏览器提供备用颜色 */
    color: #4c51bf;
}

@supports (background-clip: text) or (-webkit-background-clip: text) {
    .hero-title {
        color: transparent;
    }
}

.hero-subtitle {
    font-size: 24px;
    color: #2A7AF2;
    font-weight: 600;
    margin-bottom: 16px;
}

.hero-description {
    font-size: 18px;
    color: #4a5568; /* 提高对比度 */
    margin-bottom: 40px;
    line-height: 1.6;
}

.ai-slogan {
    font-size: 20px;
    color: #2A7AF2;
    font-style: italic;
    margin-bottom: 24px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(42, 122, 242, 0.1), rgba(97, 57, 246, 0.1));
    border-left: 4px solid #2A7AF2;
    border-radius: 8px;
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary, .btn-secondary, .btn-outline {
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-height: 48px; /* 确保触摸目标大小 */
    position: relative;
}

.btn-primary:focus,
.btn-secondary:focus,
.btn-outline:focus {
    outline: 3px solid #fbbf24;
    outline-offset: 2px;
}

/* 为视觉障碍用户添加高对比度模式 */
@media (prefers-contrast: high) {
    .btn-primary {
        background: #000000 !important;
        color: #ffffff !important;
        border: 2px solid #ffffff !important;
    }

    .btn-secondary,
    .btn-outline {
        background: #ffffff !important;
        color: #000000 !important;
        border: 2px solid #000000 !important;
    }
}

.btn-primary {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    box-shadow: 0 4px 15px rgba(97, 57, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(97, 57, 246, 0.4);
}

.btn-secondary {
    background: white;
    color: #2563EB;
    border: 2px solid #2563EB;
}

.btn-secondary:hover {
    background: #2563EB;
    color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #2563EB;
    border: 2px solid #2563EB;
}

.btn-outline:hover {
    background: #2563EB;
    color: white;
}

/* 浮动图标动画 */
.hero-image {
    position: relative;
    height: 400px;
}

.floating-icons {
    position: relative;
    width: 100%;
    height: 100%;
}

.icon {
    position: absolute;
    font-size: 60px;
    background: white;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(97, 57, 246, 0.15);
    animation: float 6s ease-in-out infinite;
}

.icon-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.icon-2 {
    top: 20%;
    right: 10%;
    animation-delay: 1.5s;
}

.icon-3 {
    bottom: 30%;
    left: 20%;
    animation-delay: 3s;
}

.icon-4 {
    bottom: 10%;
    right: 20%;
    animation-delay: 4.5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(2deg);
    }
    50% {
        transform: translateY(-10px) rotate(-1deg);
    }
    75% {
        transform: translateY(-15px) rotate(1deg);
    }
}

/* 功能特色 */
.features {
    padding: 100px 0;
    background: white;
}

/* 标题容器 - 提升可读性 */
.section-title {
    text-align: center;
    font-size: 38px;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 60px;
    position: relative;
    line-height: 1.4;
    letter-spacing: 0.5px;
    padding: 0 20px;
}

/* 下划线装饰 - 响应式宽度 */
.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(97, 57, 246, 0.15);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-visual {
    width: 100%;
    max-width: 220px;
    margin: 0 auto 24px;
    border-radius: 14px;
    display: block;
    box-shadow: 0 18px 36px rgba(26, 32, 44, 0.12);
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 16px;
}

.feature-card p {
    color: #4a5568; /* 提高对比度 */
    line-height: 1.6;
}

/* 价格方案 */
.pricing {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.pricing-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    position: relative;
    border: 2px solid #f0f0f0;
    transition: all 0.3s ease;
}

.pricing-tagline {
    text-align: center;
    color: #4a5568;
    margin-bottom: 16px;
    font-size: 16px;
    line-height: 1.5;
}

/* 特色卡片（Featured）增强 */
.pricing-card.featured {
    border-color: #2563EB;
    transform: scale(1.05);
    box-shadow: 0 12px 36px rgba(37, 99, 235, 0.2);
}

.pricing-card.featured .current-price {
    text-shadow: 0 0 20px rgba(37, 99, 235, 0.2);
}

/* Tagline与价格间距统一 */
.pricing-tagline {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(97, 57, 246, 0.15);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 24px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.pricing-card.oem-card {
    border-color: #ff8f39;
    box-shadow: 0 18px 36px rgba(255, 143, 57, 0.18);
}

.pricing-card.oem-card .badge {
    background: linear-gradient(135deg, #ff8f39, #ff5e3a);
}

.btn-outline.highlight {
    border: 2px solid #ff8f39;
    color: #ff8f39;
    font-weight: 600;
}

.btn-outline.highlight:hover {
    background: linear-gradient(135deg, rgba(255, 143, 57, 0.12), rgba(255, 94, 58, 0.12));
    color: #ff5e3a;
}

/* 价格容器 - 使用Flexbox确保垂直对齐 */
.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 20px;
    line-height: 1;
    flex-wrap: wrap;
    font-size: 42px;
    font-weight: 700;
    color: #2563EB;
}

/* 通用价格span样式 - 排除特定class避免优先级冲突 */
.price span:not(.original-price):not(.current-price):not(.price-unit) {
    font-size: 16px;
    color: #666;
    font-weight: 400;
}

.features-list {
    list-style: none;
    margin-bottom: 30px;
}

.features-list li {
    padding: 8px 0;
    color: #4a5568; /* 提高对比度 */
}

.features-list li::before {
    content: '✓';
    color: #2563EB;
    font-weight: bold;
    margin-right: 10px;
}

/* 渠道商招募 */
.agents {
    padding: 100px 0;
    background: white;
}

.agents-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.agents-text h3 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
}

.agents-text ul {
    list-style: none;
    margin-bottom: 40px;
}

.agents-text li {
    padding: 12px 0;
    font-size: 18px;
    color: #4a5568; /* 提高对比度 */
}

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

.stat {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
    border-radius: 12px;
}

.stat h4 {
    font-size: 36px;
    font-weight: 700;
    color: #2563EB;
    margin-bottom: 10px;
}

.stat p {
    color: #4a5568; /* 提高对比度 */
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #2563EB;
}

.footer-section p {
    color: #cbd5e0; /* 提高对比度 */
    margin-bottom: 10px;
}

.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 30px;
    text-align: center;
    color: #a0aec0; /* 提高对比度 */
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    /* 完美居中 - 确保在视口50%-70%高度范围内显示 */
    justify-content: center;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
    /* 优化动画性能 */
    will-change: opacity;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: white;
    /* 移除 margin，使用 flexbox 居中 */
    margin: 0;
    padding: 40px;
    border-radius: 20px;
    width: 100%;
    max-width: 600px;
    /* 确保在视口50%-70%高度范围内显示 */
    min-height: 200px;
    max-height: 70vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
    /* 优化滚动条样式 */
    scrollbar-width: thin;
    scrollbar-color: #2563EB #f1f5f9;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    color: #aaa;
    background: transparent;
    border: none;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 15px;
    right: 20px;
    padding: 0;
    line-height: 1;
}

.close:hover {
    color: #333;
}

.modal-content h3 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 24px;
}

/* 微信二维码容器样式 */
.modal-qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 24px 0;
    padding: 20px;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
    border-radius: 16px;
    border: 2px solid #e2e8f0;
}

.modal-qr-code {
    width: 140px;
    height: 140px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(97, 57, 246, 0.15);
    margin-bottom: 16px;
    background: white;
    padding: 8px;
    border: 2px solid #f1f5f9;
    object-fit: cover;
}

.modal-qr-text {
    font-size: 16px;
    font-weight: 600;
    color: #334155;
    text-align: center;
    margin-bottom: 8px;
}

.modal-wechat-id {
    font-size: 14px;
    color: #2563EB;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: rgba(97, 57, 246, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid rgba(97, 57, 246, 0.2);
}

/* Context7移动端弹窗优化标准 */
.modal {
    /* 防止iOS Safari地址栏影响弹窗居中 */
    height: 100vh;
    height: 100dvh; /* 使用动态视口高度(如果支持) */
}

/* Context7标准：弹窗关闭按钮最小44px触摸目标 */
.close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Context7标准：最小触摸目标44px */
    min-width: 44px;
    min-height: 44px;
    /* 增强触摸反馈 */
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.close:hover,
.close:focus {
    background: rgba(0, 0, 0, 0.2);
    color: #333;
    transform: scale(1.1);
}

/* Context7标准：安全区域适配(刘海屏、底部指示器) */
@supports (padding: max(0px)) {
    .modal {
        padding: max(20px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
    }
}

/* Context7标准：滑动手势支持 */
.modal-content {
    /* 防止意外滑动关闭 */
    touch-action: pan-y;
    /* 优化滚动性能 */
    -webkit-overflow-scrolling: touch;
    /* 防止橡皮筋效果影响体验 */
    overscroll-behavior: contain;
}

/* 保留原有的占位符样式作为后备 */
.qr-code {
    text-align: center;
    margin: 30px 0;
}

.qr-placeholder {
    display: inline-block;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
    border: 2px dashed #2563EB;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: #2563EB;
}

.qr-placeholder small {
    font-size: 14px;
    margin-top: 10px;
}

/* 弹窗增值服务样式 */
.modal-benefits {
    margin: 20px 0;
    padding: 16px;
    background: #f8faff;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.benefit-item {
    display: flex;
    align-items: center;
    margin: 12px 0;
    padding: 8px 0;
}

.benefit-icon {
    font-size: 18px;
    margin-right: 12px;
    min-width: 24px;
}

.benefit-text {
    font-size: 14px;
    color: #334155;
    font-weight: 500;
}

/* 联系方式选择样式 */
.contact-options {
    margin: 24px 0;
}

.contact-option {
    margin: 20px 0;
    padding: 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    background: #ffffff;
}

.contact-option h4 {
    margin: 0 0 16px 0;
    font-size: 16px;
    color: #1e293b;
    text-align: center;
}

.contact-divider,
.download-divider {
    text-align: center;
    margin: 16px 0;
    font-size: 14px;
    color: #64748b;
    position: relative;
    background: white;
    padding: 0 16px;
    z-index: 2;
    display: inline-block;
}

.contact-divider::before,
.download-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -100px;
    right: -100px;
    height: 1px;
    background: #e2e8f0;
    z-index: 1;
}

/* 下载方式样式 */
.download-methods {
    margin: 24px 0;
}

.download-method {
    margin: 20px 0;
    padding: 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    background: #ffffff;
}

.download-method h4 {
    margin: 0 0 16px 0;
    font-size: 16px;
    color: #1e293b;
    text-align: center;
}

/* 弹窗副标题样式 */
.modal-subtitle {
    text-align: center;
    font-size: 14px;
    color: #64748b;
    margin: -10px 0 24px 0;
}

/* 电话按钮样式 */
.btn-phone {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    /* Context7标准：最小触摸目标44px */
    min-height: 44px;
}

.btn-phone:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
}

.phone-icon {
    margin-right: 8px;
    font-size: 18px;
}

/* 表单优化 - 提升用户体验和转化率 */
.trial-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.trial-form .form-group {
    position: relative;
}

.trial-form input,
.trial-form select,
.trial-form textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    color: #1a202c;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.trial-form input:focus,
.trial-form select:focus,
.trial-form textarea:focus {
    outline: none;
    border-color: #2563EB;
    box-shadow: 0 0 0 3px rgba(97, 57, 246, 0.1), 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.trial-form input:valid,
.trial-form select:valid {
    border-color: #10b981;
}

.trial-form input::placeholder,
.trial-form textarea::placeholder {
    color: #a0aec0;
    transition: color 0.3s ease;
}

.trial-form input:focus::placeholder,
.trial-form textarea:focus::placeholder {
    color: #cbd5e0;
}

.trial-form textarea {
    min-height: 100px;
    resize: vertical;
    line-height: 1.5;
}

.trial-form .form-progress {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.trial-form .progress-step {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e2e8f0;
    transition: all 0.3s ease;
}

.trial-form .progress-step.active {
    background: #2563EB;
    transform: scale(1.2);
}

.trial-form .progress-step.completed {
    background: #10b981;
}

.trial-form .form-validation {
    font-size: 14px;
    margin-top: 6px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.trial-form .form-validation.error {
    color: #e53e3e;
    opacity: 1;
}

.trial-form .form-validation.success {
    color: #10b981;
    opacity: 1;
}

.trial-form button {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    padding: 18px 32px;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(97, 57, 246, 0.3);
    min-height: 56px;
    position: relative;
    overflow: hidden;
}

.trial-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(97, 57, 246, 0.4);
}

.trial-form button:active {
    transform: translateY(0);
    transition-duration: 0.1s;
}

.trial-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.trial-form button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.trial-form button:hover::before {
    left: 100%;
}

/* 倒计时器样式 - 增强紧迫感视觉表现 */
.countdown-section {
    background: linear-gradient(135deg, #ff4757 0%, #dc2626 50%, #b91c1c 100%);
    color: white;
    padding: 48px 0;
    position: relative;
    overflow: hidden;
    border-top: 4px solid #fbbf24;
    border-bottom: 4px solid #fbbf24;
    box-shadow: 0 8px 32px rgba(220, 38, 38, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    animation: urgency-bg-pulse 4s ease-in-out infinite;
}

@keyframes urgency-bg-pulse {
    0%, 100% {
        background: linear-gradient(135deg, #ff4757 0%, #dc2626 50%, #b91c1c 100%);
        box-shadow: 0 8px 32px rgba(220, 38, 38, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    50% {
        background: linear-gradient(135deg, #ff3838 0%, #c53030 50%, #991b1b 100%);
        box-shadow: 0 12px 40px rgba(255, 55, 87, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    }
}

.countdown-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="white" opacity="0.1"><animate attributeName="opacity" values="0.1;0.4;0.1" dur="1.5s" repeatCount="indefinite"/></circle><circle cx="80" cy="40" r="1.5" fill="white" opacity="0.1"><animate attributeName="opacity" values="0.1;0.5;0.1" dur="2s" repeatCount="indefinite"/></circle><circle cx="40" cy="80" r="1" fill="white" opacity="0.1"><animate attributeName="opacity" values="0.1;0.4;0.1" dur="1.8s" repeatCount="indefinite"/></circle><circle cx="60" cy="15" r="1.2" fill="white" opacity="0.1"><animate attributeName="opacity" values="0.1;0.3;0.1" dur="2.3s" repeatCount="indefinite"/></circle></svg>');
}

.countdown-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    animation: flash-effect 6s ease-in-out infinite;
}

@keyframes flash-effect {
    0%, 90%, 100% { opacity: 0; }
    95% { opacity: 0.8; }
}

.countdown-banner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 40px;
    position: relative;
    z-index: 1;
}

.countdown-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 16px;
    animation: urgent-pulse 2s ease-in-out infinite;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.5px;
}

@keyframes urgent-pulse {
    0%, 100% { transform: scale(1); text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3); }
    50% { transform: scale(1.05); text-shadow: 3px 3px 8px rgba(0, 0, 0, 0.5); }
}

.countdown-subtitle {
    font-size: 18px;
    margin-bottom: 24px;
    opacity: 0.9;
}

.countdown-timer {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.timer-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 16px;
    padding: 20px 24px;
    min-width: 88px;
    border: 3px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(15px);
    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 71, 87, 0.3);
    position: relative;
    animation: timer-pulse 2s ease-in-out infinite;
    transition: all 0.3s ease;
}

.timer-unit::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg, #ff4757, #fbbf24, #ff4757);
    border-radius: 16px;
    z-index: -1;
    opacity: 0;
    animation: border-glow 3s ease-in-out infinite;
}

@keyframes timer-pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow:
            0 8px 20px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.5),
            0 0 30px rgba(255, 71, 87, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow:
            0 12px 28px rgba(0, 0, 0, 0.4),
            inset 0 1px 0 rgba(255, 255, 255, 0.7),
            0 0 40px rgba(255, 71, 87, 0.5);
    }
}

@keyframes border-glow {
    0%, 80%, 100% { opacity: 0; }
    10%, 70% { opacity: 0.8; }
}

.timer-number {
    font-size: 32px;
    font-weight: 900;
    line-height: 1;
    text-shadow:
        2px 2px 4px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(255, 255, 255, 0.4);
    background: linear-gradient(135deg, #ffffff, #fbbf24);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: number-glow 2s ease-in-out infinite;
}

@keyframes number-glow {
    0%, 100% {
        text-shadow:
            2px 2px 4px rgba(0, 0, 0, 0.5),
            0 0 20px rgba(255, 255, 255, 0.4);
    }
    50% {
        text-shadow:
            2px 2px 6px rgba(0, 0, 0, 0.7),
            0 0 30px rgba(255, 255, 255, 0.8),
            0 0 40px rgba(251, 191, 36, 0.6);
    }
}

.timer-label {
    font-size: 13px;
    opacity: 0.9;
    margin-top: 6px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.timer-separator {
    font-size: 28px;
    font-weight: 800;
    animation: urgent-blink 1s ease-in-out infinite;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.6);
}

@keyframes urgent-blink {
    0%, 40% {
        opacity: 1;
        transform: scale(1);
        color: #ffffff;
    }
    50% {
        opacity: 0.4;
        transform: scale(0.9);
        color: #fbbf24;
    }
    60%, 100% {
        opacity: 1;
        transform: scale(1);
        color: #ffffff;
    }
}

.countdown-warning {
    font-size: 15px;
    opacity: 0.95;
    animation: warning-glow 2.5s ease-in-out infinite;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    margin-top: 16px;
}

@keyframes warning-glow {
    0%, 100% {
        text-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
        background: rgba(255, 255, 255, 0.15);
    }
    50% {
        text-shadow:
            0 0 15px rgba(255, 255, 255, 0.8),
            0 0 25px rgba(251, 191, 36, 0.6);
        background: rgba(255, 255, 255, 0.25);
    }
}

.btn-urgent {
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
    color: #ff4757;
    border: 3px solid #ff4757;
    padding: 18px 36px;
    border-radius: 12px;
    font-size: 19px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow:
        0 6px 20px rgba(255, 71, 87, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    display: block;
    width: 100%;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: urgent-btn-pulse 3s ease-in-out infinite;
}

.btn-urgent::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 71, 87, 0.2), transparent);
    animation: urgent-shine 2s ease-in-out infinite;
}

@keyframes urgent-btn-pulse {
    0%, 70%, 100% {
        transform: scale(1);
        box-shadow:
            0 6px 20px rgba(255, 71, 87, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.8);
    }
    35% {
        transform: scale(1.02);
        box-shadow:
            0 8px 28px rgba(255, 71, 87, 0.5),
            inset 0 1px 0 rgba(255, 255, 255, 1);
    }
}

@keyframes urgent-shine {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

.btn-urgent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.save-amount {
    background: #ff4757;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 14px;
    margin-left: 8px;
}

.urgency-indicator {
    text-align: center;
    background: rgba(255, 255, 255, 0.15);
    padding: 24px;
    border-radius: 16px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(15px);
    position: relative;
    overflow: hidden;
    animation: urgency-container-pulse 4s ease-in-out infinite;
}

.urgency-indicator::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 71, 87, 0.1) 0%, transparent 70%);
    animation: urgency-bg-wave 3s ease-in-out infinite;
}

@keyframes urgency-container-pulse {
    0%, 100% {
        border-color: rgba(255, 255, 255, 0.25);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }
    50% {
        border-color: rgba(255, 191, 36, 0.4);
        box-shadow: 0 8px 32px rgba(255, 71, 87, 0.3);
    }
}

@keyframes urgency-bg-wave {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.7; }
}

.spots-remaining {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 16px;
    animation: spots-warning 2.5s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

@keyframes spots-warning {
    0%, 60%, 100% {
        color: white;
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    }
    30% {
        color: #fbbf24;
        text-shadow:
            0 0 15px rgba(251, 191, 36, 0.8),
            0 0 25px rgba(255, 71, 87, 0.4);
    }
}

.spots-count {
    font-size: 28px;
    font-weight: 900;
    color: #fbbf24;
    text-shadow:
        2px 2px 4px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(251, 191, 36, 0.6);
    animation: count-pulse 2s ease-in-out infinite;
    display: inline-block;
    position: relative;
}

.spots-count::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    right: -50%;
    bottom: -50%;
    background: radial-gradient(circle, rgba(251, 191, 36, 0.2) 0%, transparent 70%);
    animation: count-glow 2s ease-in-out infinite;
    border-radius: 50%;
}

@keyframes count-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes count-glow {
    0%, 100% { opacity: 0; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

.urgency-bar {
    background: rgba(255, 255, 255, 0.3);
    height: 12px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.4);
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.urgency-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.4);
}

.urgency-fill {
    background: linear-gradient(90deg, #ff4757, #fbbf24, #f59e0b);
    height: 100%;
    width: 37%;
    border-radius: 5px;
    animation: urgency-fill-pulse 2s ease-in-out infinite;
    box-shadow:
        0 0 12px rgba(251, 191, 36, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.urgency-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: fill-shine 3s ease-in-out infinite;
}

@keyframes urgency-fill-pulse {
    0%, 100% {
        opacity: 0.9;
        box-shadow:
            0 0 12px rgba(251, 191, 36, 0.6),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
    50% {
        opacity: 1;
        box-shadow:
            0 0 20px rgba(251, 191, 36, 0.9),
            0 0 30px rgba(255, 71, 87, 0.5),
            inset 0 1px 0 rgba(255, 255, 255, 0.5);
    }
}

@keyframes fill-shine {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

/* 社交证明样式 - 增强可信度视觉表现 */
.social-proof {
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 50%, #f0f9ff 100%);
    padding: 50px 0;
    border-bottom: 1px solid #e8f2ff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(97, 57, 246, 0.1);
}

.social-proof::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="social-grid" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%236139F6" opacity="0.08"><animate attributeName="opacity" values="0.08;0.15;0.08" dur="4s" repeatCount="indefinite"/></circle></pattern></defs><rect width="100" height="100" fill="url(%23social-grid)"/></svg>');
    opacity: 0.8;
}

.social-proof::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(97, 57, 246, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 50%, rgba(42, 122, 242, 0.06) 0%, transparent 50%);
    animation: social-bg-shift 8s ease-in-out infinite;
}

@keyframes social-bg-shift {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

.social-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    margin-bottom: 32px;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 24px 28px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    backdrop-filter: blur(15px);
    border: 2px solid rgba(97, 57, 246, 0.15);
    box-shadow:
        0 8px 20px rgba(97, 57, 246, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    min-width: 140px;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563EB, #2A7AF2, #2563EB);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-item:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow:
        0 16px 32px rgba(97, 57, 246, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 1);
    background: rgba(255, 255, 255, 1);
    border-color: rgba(97, 57, 246, 0.3);
}

.stat-number {
    font-size: 32px;
    font-weight: 900;
    color: #2563EB;
    display: block;
    background: linear-gradient(135deg, #2563EB, #2A7AF2, #1e40af);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    position: relative;
    animation: stat-number-glow 3s ease-in-out infinite;
}

.stat-number::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: blur(8px);
    opacity: 0;
    animation: number-blur-glow 3s ease-in-out infinite;
}

@keyframes stat-number-glow {
    0%, 100% {
        filter: brightness(1);
        text-shadow: 0 0 10px rgba(97, 57, 246, 0.3);
    }
    50% {
        filter: brightness(1.2);
        text-shadow: 0 0 20px rgba(97, 57, 246, 0.6);
    }
}

@keyframes number-blur-glow {
    0%, 90%, 100% { opacity: 0; }
    45% { opacity: 0.3; }
}

.stat-label {
    font-size: 16px;
    color: #4a5568;
    margin-top: 8px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    font-size: 13px;
}

.stat-separator {
    color: rgba(97, 57, 246, 0.3);
    font-size: 24px;
    font-weight: 300;
    animation: separator-fade 4s ease-in-out infinite;
}

@keyframes separator-fade {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.7; }
}

.live-count {
    animation: countUp 3s ease-in-out infinite;
    position: relative;
    display: inline-block;
}

.live-count::before {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: live-dot-pulse 2s ease-in-out infinite;
    box-shadow: 0 0 6px #10b981;
}

@keyframes countUp {
    0%, 90%, 100% { transform: scale(1); }
    45% { transform: scale(1.08); }
}

@keyframes live-dot-pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.3);
    }
}

.live-activity {
    text-align: center;
    padding: 16px 24px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(97, 57, 246, 0.15);
    max-width: 480px;
    margin: 0 auto;
    border: 1px solid rgba(97, 57, 246, 0.1);
    position: relative;
    z-index: 1;
    animation: activity-glow 4s ease-in-out infinite;
}

@keyframes activity-glow {
    0%, 100% { box-shadow: 0 4px 16px rgba(97, 57, 246, 0.15); }
    50% { box-shadow: 0 8px 24px rgba(97, 57, 246, 0.25); }
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 15px;
    position: relative;
}

.activity-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: live-indicator 2s ease-in-out infinite;
}

@keyframes live-indicator {
    0%, 100% { opacity: 0.6; transform: translateY(-50%) scale(1); }
    50% { opacity: 1; transform: translateY(-50%) scale(1.2); }
}

.activity-icon {
    font-size: 18px;
    margin-left: 16px;
}

.activity-text {
    flex: 1;
    color: #1a202c;
    font-weight: 500;
    text-align: left;
}

.activity-time {
    color: #10b981;
    font-size: 13px;
    font-weight: 600;
    background: rgba(16, 185, 129, 0.1);
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* AI品牌感知模块样式 */
.ai-perception {
    background: #1a1a1a;
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.ai-perception::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(97, 57, 246, 0.1) 0%, transparent 70%);
}

.ai-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.ai-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 40px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ai-quote {
    margin-bottom: 60px;
}

.ai-quote blockquote {
    font-size: 24px;
    font-style: italic;
    color: #ccc;
    border-left: 4px solid #2563EB;
    padding-left: 24px;
    margin: 0 auto;
    max-width: 800px;
    text-align: left;
}

.ai-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.ai-feature {
    padding: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(97, 57, 246, 0.2);
    transition: all 0.3s ease;
}

.ai-feature:hover {
    transform: translateY(-5px);
    border-color: #2563EB;
}

.ai-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.ai-feature h4 {
    font-size: 20px;
    margin-bottom: 12px;
    color: white;
}

.ai-feature p {
    color: #ccc;
    line-height: 1.6;
}

.btn-ai {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(97, 57, 246, 0.3);
    margin-bottom: 16px;
}

.btn-ai:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(97, 57, 246, 0.4);
}

.ai-benefit {
    color: #ccc;
    font-size: 14px;
}

/* 价格卡片增强样式 */
/* 价值徽章 - 顶部优惠标识 */
.value-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #ff4757, #ff3838);
    color: white;
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
    z-index: 10;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* 原价 - 删除线样式（优化对比效果） - 使用!important确保优先级 */
.price .original-price,
span.original-price {
    text-decoration: line-through !important;
    text-decoration-thickness: 2px !important;
    color: #999 !important;
    font-size: 18px !important;
    font-weight: 400 !important;
    letter-spacing: 0.3px !important;
    opacity: 0.75 !important;
    margin-right: 4px !important;
}

/* 当前价格 - 主视觉焦点（三重强调：颜色+大小+粗细） - 使用!important确保优先级 */
.price .current-price,
span.current-price {
    color: #2563EB !important;
    font-size: 42px !important;
    font-weight: 800 !important;
    letter-spacing: -0.5px !important;
    line-height: 1 !important;
    text-shadow: 0 1px 2px rgba(37, 99, 235, 0.1) !important;
    margin: 0 2px !important;
}

/* 价格单位 - 辅助信息（降低视觉权重） - 使用!important确保优先级 */
.price .price-unit,
span.price-unit {
    font-size: 16px !important;
    color: #666 !important;
    font-weight: 400 !important;
    letter-spacing: 0.3px !important;
    opacity: 0.85 !important;
    margin-left: 2px !important;
}

/* 优惠标签 - 与价格呼应 */
.discount-label {
    text-align: center;
    background: linear-gradient(135deg, #ff4757, #ff3838);
    color: white;
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    margin: 0 auto 24px;
    display: inline-block;
    box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
    animation: pulse-discount 2s ease-in-out infinite;
}

@keyframes pulse-discount {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* 弹窗增强样式 */
.expert-profile {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px;
    background: #f8faff;
    border-radius: 12px;
}

.expert-avatar {
    font-size: 48px;
}

.expert-info h4 {
    margin-bottom: 8px;
    color: #333;
}

.expert-info p {
    color: #666;
    font-size: 14px;
}

.phone-options {
    display: grid;
    gap: 12px;
    margin-bottom: 24px;
}

.btn-phone {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 24px;
    border: 2px solid #2563EB;
    border-radius: 8px;
    background: white;
    color: #2563EB;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-phone:hover {
    background: #2563EB;
    color: white;
}

.btn-phone.direct {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border-color: transparent;
}

.call-metrics {
    margin-top: 16px;
    background: #f8faff;
    border-radius: 12px;
    padding: 20px;
    color: #4a5568;
    font-size: 14px;
    line-height: 1.6;
}

.call-metrics strong {
    color: #2563EB;
    font-weight: 700;
}

.phone-icon {
    font-size: 20px;
}

.expert-benefits {
    display: grid;
    gap: 12px;
    margin-bottom: 24px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #f8faff;
    border-radius: 8px;
}

.benefit-icon {
    font-size: 20px;
}

.magnet-offer {
    margin-bottom: 30px;
}

.offer-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: #f8faff;
    border-radius: 12px;
    margin-bottom: 16px;
}

.offer-icon {
    font-size: 32px;
}

.offer-content {
    flex: 1;
}

.offer-content h4 {
    margin-bottom: 8px;
    color: #333;
}

.offer-content p {
    color: #666;
    font-size: 14px;
}

.offer-value {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.lead-form {
    display: grid;
    gap: 20px;
    margin-bottom: 24px;
}

.lead-form input,
.lead-form select,
.lead-form textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    color: #1a202c;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus {
    outline: none;
    border-color: #2563EB;
    box-shadow: 0 0 0 3px rgba(97, 57, 246, 0.1), 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.lead-form button {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    padding: 18px 32px;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(97, 57, 246, 0.3);
    min-height: 56px;
}

.lead-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(97, 57, 246, 0.4);
}

.trust-signal {
    text-align: center;
    color: #666;
    font-size: 12px;
}

.ai-solution {
    margin-bottom: 30px;
}

.solution-step {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
    padding: 20px;
    background: #f8faff;
    border-radius: 12px;
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    margin-bottom: 8px;
    color: #333;
}

.step-content p {
    color: #666;
    font-size: 14px;
}

.ai-value {
    text-align: center;
}

.value-proposition {
    background: linear-gradient(135deg, #ff4757, #ff3838);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 600;
    margin-bottom: 20px;
    display: inline-block;
}

/* 浮动CTA按钮样式 - 优化触摸目标和视觉层次 */
.floating-cta {
    position: fixed;
    left: 20px;
    bottom: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

.floating-btn-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.floating-btn {
    position: relative;
    width: 64px;
    height: 64px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    outline: 3px solid transparent;
    outline-offset: 2px;
}

.floating-btn:hover {
    transform: scale(1.15) translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.floating-btn:focus {
    outline: 3px solid #2563EB;
    outline-offset: 2px;
}

.floating-btn:active {
    transform: scale(1.05);
    transition-duration: 0.1s;
}

.floating-btn.phone {
    background: linear-gradient(135deg, #25D366, #128C7E);
    position: relative;
}

.floating-btn.phone::before {
    content: '专家咨询';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: #25D366;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    margin-left: 8px;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.floating-btn.phone:hover::before {
    opacity: 1;
}

.floating-btn.wechat {
    background: linear-gradient(135deg, #07C160, #00A854);
    position: relative;
}

.floating-btn.wechat::before {
    content: '微信咨询';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: #07C160;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    margin-left: 8px;
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
}

.floating-btn.wechat:hover::before {
    opacity: 1;
}

.floating-btn.gift {
    background: linear-gradient(135deg, #ff4757, #ff3838);
    position: relative;
    animation: gift-pulse 3s ease-in-out infinite;
}

.floating-btn.gift::before {
    content: '免费资源';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: #ff4757;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    margin-left: 8px;
    box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
}

.floating-btn.gift:hover::before {
    opacity: 1;
}

@keyframes gift-pulse {
    0%, 50%, 100% { transform: scale(1); }
    25% { transform: scale(1.08); }
    75% { transform: scale(1.04); }
}

.floating-icon {
    position: relative;
    z-index: 2;
}

.floating-icon-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.floating-pulse {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: pulse-float 2s ease-in-out infinite;
}

@keyframes pulse-float {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

.floating-message {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    padding: 12px 16px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(97, 57, 246, 0.3);
    animation: float-message 3s ease-in-out infinite;
    transform-origin: right center;
}

@keyframes float-message {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-5px) scale(1.02);
    }
}

/* Context7标准：移动端汉堡菜单 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger-line {
    width: 24px;
    height: 3px;
    background: #2563EB;
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    padding: 20px;
    overflow-y: auto;
}

.mobile-menu.active {
    display: block;
    animation: mobile-menu-slide 0.3s ease;
}

@keyframes mobile-menu-slide {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu-list li {
    margin-bottom: 16px;
}

.mobile-menu-list a {
    display: block;
    padding: 16px 20px;
    color: #1a202c;
    text-decoration: none;
    font-weight: 500;
    font-size: 18px;
    border-radius: 8px;
    transition: all 0.3s ease;
    min-height: 48px;
    background: rgba(97, 57, 246, 0.05);
    border: 1px solid rgba(97, 57, 246, 0.1);
}

.mobile-menu-list a:active {
    background: #2563EB;
    color: white;
    transform: scale(0.98);
}

/* 响应式设计 - Context7标准移动端优化 */
@media (max-width: 768px) {
    /* 导航栏移动端适配 */
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-btn {
        padding: 14px 18px;
        font-size: 14px;
        min-height: 44px;
    }

    .countdown-banner {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
        padding: 0 16px;
    }

    .countdown-timer {
        justify-content: center;
        gap: 12px;
    }

    .timer-unit {
        min-width: 72px;
        padding: 14px 18px;
    }

    .btn-urgent {
        padding: 18px 32px;
        font-size: 17px;
        border-radius: 12px;
        min-height: 56px;
    }

    .social-stats {
        flex-wrap: wrap;
        gap: 24px;
        padding: 0 16px;
    }

    .stat-item {
        padding: 20px 16px;
        min-width: 140px;
        flex: 1;
    }

    .stat-separator {
        display: none;
    }

    .ai-title {
        font-size: 28px;
    }

    .ai-quote blockquote {
        font-size: 18px;
        text-align: center;
        border-left: none;
        border-top: 4px solid #2563EB;
        padding-left: 0;
        padding-top: 16px;
    }

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

    .value-badge {
        left: 50%;
        transform: translateX(-50%);
    }

    .expert-profile {
        flex-direction: column;
        text-align: center;
    }

    .offer-item {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .solution-step {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .floating-cta {
        right: 16px;
        bottom: 20px;
    }

    .floating-btn {
        width: 56px;
        height: 56px;
        font-size: 22px;
    }

    .floating-btn::before {
        display: none;
    }

    .floating-message {
        font-size: 13px;
        padding: 10px 14px;
        max-width: 200px;
        word-wrap: break-word;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
        padding: 0 16px;
    }

    .hero-title {
        font-size: 32px;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
        min-height: 52px;
        font-size: 16px;
        padding: 16px 24px;
    }

    .agents-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 0 16px;
    }

    .pricing-card {
        padding: 32px 24px;
    }

    .pricing-card.featured {
        transform: none;
        order: -1;
    }

    .pricing-card .btn-primary,
    .pricing-card .btn-outline {
        width: 100%;
        min-height: 52px;
        font-size: 16px;
        padding: 16px 24px;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 28px;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        min-height: 50px;
        font-size: 15px;
        padding: 15px 20px;
    }

    .countdown-section {
        padding: 32px 0;
    }

    .countdown-title {
        font-size: 24px;
    }

    .countdown-subtitle {
        font-size: 16px;
    }

    .timer-unit {
        min-width: 64px;
        padding: 12px 16px;
    }

    .timer-number {
        font-size: 24px;
    }

    .btn-urgent {
        padding: 16px 24px;
        font-size: 16px;
        min-height: 52px;
    }

    .floating-btn {
        width: 52px;
        height: 52px;
        font-size: 20px;
    }

    .features,
    .pricing,
    .agents {
        padding: 60px 0;
    }

    .section-title {
        font-size: 22px;
        padding: 0 12px;
        margin-bottom: 32px;
        word-spacing: 1px;
    }

    .section-title::after {
        width: 50px;
        height: 3px;
        bottom: -10px;
    }

    /* 移动端副标题优化 */
    .section-subtitle {
        font-size: 14px !important;
        line-height: 1.6 !important;
        padding: 0 15px !important;
        margin-top: -30px !important;
    }

    /* 竞品对比区域移动端优化 */
    .quick-comparison {
        margin-top: 40px !important;
        padding: 20px 15px !important;
    }

    .quick-comparison h3 {
        font-size: 18px !important;
        margin-bottom: 20px !important;
    }

    .quick-comparison > div {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
    }

    .quick-comparison > div > div {
        padding: 12px 8px !important;
    }

    .quick-comparison > div > div > div:first-child {
        font-size: 24px !important;
    }

    .quick-comparison > div > div > div:last-child {
        font-size: 12px !important;
    }

    /* 价格容器 - 保持横向布局，紧凑显示 */
    .price {
        flex-direction: row;
        align-items: baseline;
        justify-content: center;
        gap: 3px;
        flex-wrap: nowrap;
    }

    /* 原价 - 移动端优化（保持可读性） */
    .price .original-price,
    span.original-price {
        font-size: 15px !important;
        opacity: 0.7 !important;
    }

    /* 当前价格 - 移动端保持视觉冲击力 */
    .price .current-price,
    span.current-price {
        font-size: 36px !important;
        font-weight: 800 !important;
    }

    /* 价格单位 - 移动端适度缩小 */
    .price .price-unit,
    span.price-unit {
        font-size: 14px !important;
        opacity: 0.8 !important;
    }

    /* 优惠标签 - 移动端优化 */
    .discount-label {
        font-size: 13px;
        padding: 6px 16px;
        margin-bottom: 20px;
    }

    /* 价值徽章 - 移动端位置调整 */
    .value-badge {
        font-size: 13px;
        padding: 6px 16px;
        top: -10px;
    }

    .features-grid {
        gap: 24px;
        padding: 0 16px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    .pricing-card {
        padding: 24px 20px;
    }

    .modal-content {
        margin: 0;
        padding: 24px;
        width: 95%;
        max-width: 95%;
    }

    .trial-form input,
    .trial-form select,
    .trial-form textarea {
        padding: 14px 16px;
        font-size: 16px;
        min-height: 48px;
    }

    .trial-form button {
        min-height: 52px;
        font-size: 16px;
        padding: 16px 24px;
    }
}

/* FAQ模块样式 */
.faq-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8faff 0%, #ffffff 100%);
}

.faq-subtitle {
    text-align: center;
    color: #666;
    font-size: 18px;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 20px;
}

.faq-item {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(97, 57, 246, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.faq-item:hover {
    box-shadow: 0 8px 30px rgba(97, 57, 246, 0.15);
    transform: translateY(-2px);
}

.faq-item.active {
    border-color: #2563EB;
    box-shadow: 0 8px 30px rgba(97, 57, 246, 0.2);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.faq-question:hover {
    background: #f8faff;
}

.faq-item.active .faq-question {
    background: #f8faff;
    border-bottom-color: #e8eef7;
}

.faq-question h4 {
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    flex: 1;
    line-height: 1.4;
}

.faq-toggle {
    font-size: 24px;
    color: #2563EB;
    font-weight: bold;
    transition: all 0.3s ease;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8faff;
    border-radius: 50%;
    margin-left: 20px;
}

.faq-item.active .faq-toggle {
    background: #2563EB;
    color: white;
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    background: white;
}

.faq-item.active .faq-answer {
    border-top: 1px solid #e8eef7;
}

.faq-answer p {
    color: #444;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 15px;
    padding: 0 30px;
}

.faq-answer ul {
    list-style: none;
    padding: 0 30px;
    margin: 15px 0;
}

.faq-answer li {
    color: #555;
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 10px;
    padding-left: 0;
}

.faq-answer li strong {
    color: #2c3e50;
}

.faq-answer > p:first-child {
    padding-top: 25px;
}

.faq-answer > p:last-child,
.faq-answer > ul:last-child {
    padding-bottom: 25px;
}

.faq-cta {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    border-radius: 16px;
    color: white;
}

.faq-cta-text {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 25px;
    color: white;
}

.faq-cta .btn-primary {
    background: white;
    color: #2563EB;
    border: none;
    font-weight: 600;
    padding: 15px 35px;
    font-size: 16px;
}

.faq-cta .btn-primary:hover {
    background: #f8faff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

/* FAQ移动端适配 */
@media (max-width: 768px) {
    .faq-section {
        padding: 60px 0;
    }

    .faq-subtitle {
        font-size: 16px;
        margin-bottom: 40px;
        padding: 0 20px;
    }

    .faq-grid {
        margin: 0 20px;
    }

    .faq-question {
        padding: 20px;
    }

    .faq-question h4 {
        font-size: 16px;
    }

    .faq-toggle {
        font-size: 20px;
        width: 25px;
        height: 25px;
        margin-left: 15px;
    }

    .faq-answer p {
        padding: 0 20px;
        font-size: 14px;
    }

    .faq-answer ul {
        padding: 0 20px;
    }

    .faq-answer li {
        font-size: 14px;
    }

    .faq-answer > p:first-child {
        padding-top: 20px;
    }

    .faq-answer > p:last-child,
    .faq-answer > ul:last-child {
        padding-bottom: 20px;
    }

    .faq-cta {
        margin: 40px 20px 0;
        padding: 30px 20px;
    }

    .faq-cta-text {
        font-size: 18px;
    }
}

/* FAQ无障碍设计 */
.faq-question:focus {
    outline: 3px solid #2563EB;
    outline-offset: 2px;
}

.faq-item[aria-expanded="true"] .faq-question {
    background: #f8faff;
}

/* FAQ动画效果 */
@keyframes faqSlideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 500px;
    }
}

.faq-item.active .faq-answer {
    animation: faqSlideDown 0.4s ease;
}

/* 权威认证与风险反转区域样式 */
.trust-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
}

.trust-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 50px;
    color: white;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.trust-item {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.trust-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.trust-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.trust-item h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

.trust-item p {
    color: #ecf0f1;
    line-height: 1.6;
    font-size: 14px;
}

.trust-item strong {
    color: #fff;
    font-weight: 600;
}

.risk-reversal {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    padding: 50px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(97, 57, 246, 0.3);
}

.risk-reversal h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 30px;
    color: white;
}

.guarantee-points {
    display: grid;
    gap: 15px;
    margin-bottom: 40px;
    text-align: left;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.guarantee-check {
    font-size: 18px;
    color: #00ff88;
    font-weight: bold;
    min-width: 24px;
}

.guarantee-item span:last-child {
    color: white;
    font-size: 16px;
    line-height: 1.5;
}

.final-cta {
    text-align: center;
}

.conversion-qa {
    padding: 90px 0;
    background: #f9fbff;
}

.qa-subtitle {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 40px;
    color: #4a5568;
    line-height: 1.7;
    font-size: 16px;
}

.qa-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.qa-card {
    background: white;
    border-radius: 16px;
    padding: 32px 28px;
    box-shadow: 0 18px 36px rgba(97, 57, 246, 0.08);
    border: 1px solid rgba(97, 57, 246, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.qa-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: #2d3748;
}

.qa-card p {
    color: #4a5568;
    line-height: 1.7;
    font-size: 15px;
}

.qa-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 26px 48px rgba(97, 57, 246, 0.18);
}

.qa-cta {
    margin-top: 48px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.final-message {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 30px;
    color: white;
    line-height: 1.4;
}

.btn-final {
    background: linear-gradient(135deg, #ff4757, #ff3838);
    color: white;
    border: none;
    padding: 18px 40px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
    box-shadow: 0 8px 25px rgba(255, 71, 87, 0.4);
}

.btn-final:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 71, 87, 0.5);
    background: linear-gradient(135deg, #ff3838, #ff2828);
}

.trust-signal {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 20px;
    line-height: 1.5;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .trust-section {
        padding: 60px 0;
    }

    .trust-title {
        font-size: 24px;
        margin-bottom: 40px;
        padding: 0 20px;
    }

    .trust-grid {
        margin: 0 20px 40px;
        gap: 20px;
    }

    .trust-item {
        padding: 25px 15px;
    }

    .trust-icon {
        font-size: 36px;
        margin-bottom: 15px;
    }

    .trust-item h4 {
        font-size: 18px;
    }

    .risk-reversal {
        margin: 0 20px;
        padding: 30px 20px;
    }

    .risk-reversal h4 {
        font-size: 20px;
        margin-bottom: 25px;
    }

    .guarantee-points {
        gap: 12px;
        margin-bottom: 30px;
    }

    .guarantee-item {
        padding: 12px 15px;
        gap: 12px;
    }

    .guarantee-item span:last-child {
        font-size: 14px;
    }

    .final-message {
        font-size: 18px;
        margin-bottom: 25px;
    }

    .btn-final {
        padding: 16px 30px;
        font-size: 16px;
    }

    .trust-signal {
        font-size: 12px;
        margin-top: 15px;
    }
}

/* 增强CTA按钮样式 */
.cta-pulse {
    position: relative;
    overflow: hidden;
    animation: ctaPulse 3s ease-in-out infinite;
}

@keyframes ctaPulse {
    0%, 70%, 100% { transform: scale(1); }
    35% { transform: scale(1.05); }
}

.cta-bounce {
    animation: ctaBounce 4s ease-in-out infinite;
}

@keyframes ctaBounce {
    0%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-5px); }
}

.cta-shake {
    animation: ctaShake 5s ease-in-out infinite;
}

@keyframes ctaShake {
    0%, 90%, 100% { transform: translateX(0); }
    45% { transform: translateX(-3px); }
    47% { transform: translateX(3px); }
    49% { transform: translateX(-3px); }
    51% { transform: translateX(0); }
}

.cta-sparkle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: sparkle 3s ease-in-out infinite;
    z-index: 1;
}

@keyframes sparkle {
    0% { left: -100%; }
    50% { left: 100%; }
    100% { left: 100%; }
}

.cta-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    border-radius: inherit;
    opacity: 0;
    filter: blur(8px);
    animation: glow 2s ease-in-out infinite;
    z-index: -1;
}

@keyframes glow {
    0%, 100% { opacity: 0; }
    50% { opacity: 0.3; }
}

.cta-wave::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: wave 2s ease-out infinite;
    z-index: 1;
}

@keyframes wave {
    to {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

.cta-value {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #ff4757;
    color: white;
    font-size: 10px;
    padding: 4px 8px;
    border-radius: 10px;
    font-weight: 600;
    animation: valueFloat 2s ease-in-out infinite;
    z-index: 2;
}

@keyframes valueFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.btn-tertiary {
    background: transparent;
    color: #2563EB;
    border: 2px solid #2563EB;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: 48px;
}

.btn-tertiary:hover {
    background: #2563EB;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(97, 57, 246, 0.3);
}

/* 增强浮动CTA按钮样式 */
.floating-btn.cta-priority-high .priority-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #ff4757;
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: bold;
    animation: badgePulse 2s ease-in-out infinite;
}

.floating-btn.cta-priority-high .limited-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #fbbf24;
    color: #1a202c;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 8px;
    font-weight: bold;
}

.new-message-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 12px;
    height: 12px;
    background: #ff4757;
    border-radius: 50%;
    border: 2px solid white;
    animation: messageDot 2s ease-in-out infinite;
}

@keyframes messageDot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.gift-counter {
    position: absolute;
    top: -8px;
    right: -8px;
    background: white;
    color: #ff4757;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
    border: 1px solid #ff4757;
}

.floating-pulse.urgent {
    background: rgba(255, 71, 87, 0.3);
    animation-duration: 1.5s;
}

.floating-pulse.medium {
    background: rgba(7, 193, 96, 0.3);
    animation-duration: 2s;
}

.floating-pulse.gift-animation {
    background: rgba(255, 71, 87, 0.3);
    animation-duration: 3s;
}

.floating-pulse.trial-glow {
    background: rgba(97, 57, 246, 0.3);
    animation-duration: 2.5s;
}

.floating-message-carousel {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    padding: 12px 16px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(97, 57, 246, 0.3);
    position: relative;
    overflow: hidden;
    min-width: 200px;
    text-align: center;
}

.message-item {
    display: none;
    animation: messageSlide 0.5s ease-in-out;
}

.message-item.active {
    display: block;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .trust-section {
        background: #000000;
    }

    .trust-item {
        background: #ffffff;
        color: #000000;
        border: 2px solid #ffffff;
    }

    .trust-item h4,
    .trust-item strong {
        color: #000000;
    }

    .risk-reversal {
        background: #000000;
        border: 3px solid #ffffff;
    }

    .btn-final {
        background: #ffffff;
        color: #000000;
        border: 2px solid #000000;
    }
}

/* ===== 简化弹窗样式 - ultrathink + Context7标准 ===== */

/* 测试登录弹窗 - 紧凑版 */
.test-login-modal-compact {
    max-width: 400px;
    width: 90%;
    padding: 32px;
    /* 确保首屏完全可见 */
    max-height: 70vh;
    min-height: auto;
}

.test-credentials-compact {
    margin: 24px 0;
    background: #f8faff;
    border-radius: 16px;
    padding: 24px;
    border: 2px solid #e2e8f0;
}

.credential-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 16px 0;
    padding: 12px 0;
    border-bottom: 1px solid #e2e8f0;
}

.credential-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.credential-label {
    font-size: 16px;
    color: #64748b;
    font-weight: 500;
}

.credential-value-large {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    background: white;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid #ddd;
}

.test-actions-compact {
    margin-top: 24px;
}

/* 微信弹窗 - 紧凑版 */
.wechat-modal-compact {
    max-width: 360px;
    width: 90%;
    padding: 32px;
    text-align: center;
    /* 确保首屏完全可见 */
    max-height: 70vh;
    min-height: auto;
}

.qr-container-compact {
    margin: 24px 0;
    padding: 20px;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
    border-radius: 20px;
    border: 2px solid #e2e8f0;
}

.qr-code-large {
    width: 160px;
    height: 160px;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(97, 57, 246, 0.2);
    margin-bottom: 16px;
    /* 高DPR设备优化 */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.qr-cta-text {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

/* 大号按钮 - Context7标准 */
.btn-primary-large {
    width: 100%;
    min-height: 56px; /* 超过Context7标准44px */
    padding: 16px 24px;
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(97, 57, 246, 0.3);
    /* Context7触摸优化 */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-primary-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(97, 57, 246, 0.4);
}

.btn-primary-large:active {
    transform: translateY(0);
    box-shadow: 0 4px 16px rgba(97, 57, 246, 0.3);
}

/* 简化标题样式 */
.test-login-modal-compact h3,
.wechat-modal-compact h3 {
    text-align: center;
    margin-bottom: 20px;
    color: #1e293b;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
}

/* ===== 原有测试登录弹窗样式(保留备用) ===== */
.test-login-modal {
    max-width: 520px;
    width: 90%;
}

.test-login-info {
    margin: 20px 0 30px 0;
}

.test-account-box {
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
    border: 1px solid #e0e7ff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

.test-account-header {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
    gap: 10px;
}

.test-icon {
    font-size: 24px;
}

.test-account-header h4 {
    margin: 0;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.test-credentials {
    margin: 16px 0;
}

.credential-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    margin-bottom: 8px;
    gap: 12px;
}

.credential-item label {
    font-weight: 600;
    color: #555;
    min-width: 60px;
}

.credential-value {
    flex: 1;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    color: #2563EB;
    font-weight: 600;
    padding: 4px 8px;
    background: #f0f4ff;
    border-radius: 4px;
}

.copy-btn {
    background: #2563EB;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
    min-height: 36px;
    min-width: 44px; /* Context7标准触摸目标 */
}

.copy-btn:hover {
    background: #5229e6;
    transform: translateY(-1px);
}

.copy-btn:active {
    transform: translateY(0);
}

.test-notice {
    margin-top: 16px;
    padding: 12px;
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 6px;
}

.test-notice p {
    margin: 0;
    font-size: 14px;
    color: #856404;
}

.test-features {
    background: white;
    border: 1px solid #e0e7ff;
    border-radius: 12px;
    padding: 20px;
}

.test-features h5 {
    margin: 0 0 12px 0;
    color: #333;
    font-size: 16px;
    font-weight: 600;
}

.test-features ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.test-features li {
    padding: 8px 0;
    font-size: 14px;
    color: #555;
    border-bottom: 1px solid #f0f0f0;
}

.test-features li:last-child {
    border-bottom: none;
}

.test-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.test-actions .btn-primary,
.test-actions .btn-outline {
    flex: 1;
    min-height: 48px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.test-actions .btn-primary {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
}

.test-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(97, 57, 246, 0.3);
}

.test-actions .btn-outline {
    background: transparent;
    color: #2563EB;
    border: 2px solid #2563EB;
}

.test-actions .btn-outline:hover {
    background: #2563EB;
    color: white;
}

/* 加载动画样式 */
.test-actions .btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.test-actions .btn-primary .loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

/* 移动端适配 */
@media (max-width: 480px) {
    .test-login-modal {
        max-width: 95%;
        margin: 0;
    }

    /* 移动端弹窗优化 - Context7标准 */
    .modal-content {
        padding: 24px 16px;
        margin: 0;
        width: 95vw;
        max-width: 95vw;
        max-height: 85vh;
        /* 确保在小屏幕上正确居中 */
        transform: none;
    }

    .modal-qr-container {
        padding: 16px;
        margin: 16px 0;
    }

    .modal-qr-code {
        width: 120px;
        height: 120px;
        margin-bottom: 12px;
    }

    .modal-qr-text {
        font-size: 14px;
        margin-bottom: 6px;
    }

    .modal-wechat-id {
        font-size: 12px;
        padding: 4px 8px;
    }

    /* 移动端联系方式选择优化 */
    .contact-option,
    .download-method {
        padding: 16px;
        margin: 16px 0;
    }

    .contact-option h4,
    .download-method h4 {
        font-size: 14px;
        margin-bottom: 12px;
    }

    /* 移动端增值服务样式优化 */
    .modal-benefits {
        padding: 12px;
        margin: 16px 0;
    }

    .benefit-item {
        margin: 8px 0;
        padding: 6px 0;
    }

    .benefit-icon {
        font-size: 16px;
        margin-right: 8px;
        min-width: 20px;
    }

    .benefit-text {
        font-size: 12px;
    }

    /* 移动端按钮优化 */
    .btn-phone {
        padding: 12px 16px;
        font-size: 14px;
        min-height: 44px;
    }

    .phone-icon {
        font-size: 16px;
        margin-right: 6px;
    }

    /* 移动端关闭按钮优化 */
    .close {
        top: 10px;
        right: 10px;
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    /* 移动端表单优化 */
    .lead-form input,
    .lead-form button {
        font-size: 16px;
        padding: 12px 16px;
        min-height: 44px;
    }

    /* 移动端分隔线优化 */
    .contact-divider,
    .download-divider {
        font-size: 12px;
        margin: 12px 0;
    }
}

    .modal-content.test-login-modal {
        padding: 24px 20px;
        margin: 10px;
        max-height: 90vh;
        overflow-y: auto;
    }

    .test-account-box {
        padding: 16px;
    }

    .credential-item {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 12px;
    }

    .credential-item label {
        min-width: auto;
        font-size: 14px;
    }

    .credential-value {
        text-align: center;
        font-size: 18px;
        padding: 8px;
    }

    .copy-btn {
        align-self: center;
        min-width: 120px;
    }

    .test-actions {
        flex-direction: column;
    }

    .test-actions .btn-primary,
    .test-actions .btn-outline {
        width: 100%;
        min-height: 52px;
        font-size: 16px;
    }
}

/* ===== 简化弹窗移动端优化 - Context7标准 ===== */
@media (max-width: 480px) {
    .test-login-modal-compact,
    .wechat-modal-compact {
        max-width: 95vw;
        padding: 24px 20px;
        max-height: 85vh;
        margin: 0;
        /* 确保在小屏幕上不会超出视口 */
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .qr-code-large {
        width: 140px;
        height: 140px;
    }

    .credential-value-large {
        font-size: 20px;
        padding: 6px 12px;
    }

    .btn-primary-large {
        min-height: 52px;
        font-size: 16px;
        padding: 14px 20px;
    }

    .test-credentials-compact,
    .qr-container-compact {
        padding: 20px 16px;
        margin: 20px 0;
    }

    /* 移动端标题优化 */
    .test-login-modal-compact h3,
    .wechat-modal-compact h3 {
        font-size: 18px;
        margin-bottom: 16px;
        line-height: 1.4;
    }

    /* 确保关闭按钮触摸友好 */
    .test-login-modal-compact .close,
    .wechat-modal-compact .close,
    .test-login-modal-optimized .close {
        top: 12px;
        right: 12px;
        width: 44px;
        height: 44px;
        font-size: 20px;
    }
}
/* ============================================
   现代化功能模块样式 - 增强版
   ============================================ */

/* 现代化网格布局 */
.features-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    padding: 0 16px;
}

/* 基础卡片样式 */
.feature-card-modern {
    background: linear-gradient(145deg, #ffffff 0%, #fafbff 100%);
    border-radius: 24px;
    padding: 48px 32px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow:
        0 4px 16px rgba(97, 57, 246, 0.08),
        0 1px 4px rgba(97, 57, 246, 0.04);
    overflow: hidden;
    text-align: center;
    will-change: transform;
    transform: translateZ(0);
}

/* 配色变量定义 */
.feature-card-commercial {
    --primary-color: #2563EB;
    --secondary-color: #2A7AF2;
    --accent-color: rgba(97, 57, 246, 0.1);
}

.feature-card-keyword {
    --primary-color: #4F46E5;
    --secondary-color: #3B82F6;
    --accent-color: rgba(79, 70, 229, 0.1);
}

.feature-card-network {
    --primary-color: #7C3AED;
    --secondary-color: #6366F1;
    --accent-color: rgba(124, 58, 237, 0.1);
}

.feature-card-ai {
    --primary-color: #8B5CF6;
    --secondary-color: #A855F7;
    --accent-color: rgba(139, 92, 246, 0.1);
}

.feature-card-writing {
    --primary-color: #6D28D9;
    --secondary-color: #8B5CF6;
    --accent-color: rgba(109, 40, 217, 0.1);
}

.feature-card-dominate {
    --primary-color: #5B21B6;
    --secondary-color: #7C3AED;
    --accent-color: rgba(91, 33, 182, 0.1);
}

/* 重点卡片样式 */
.featured-card {
    transform: scale(1.02);
    box-shadow:
        0 8px 32px rgba(97, 57, 246, 0.12),
        0 2px 8px rgba(97, 57, 246, 0.08);
}

/* 悬浮效果 */
.feature-card-modern:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow:
        0 20px 40px rgba(97, 57, 246, 0.2),
        0 8px 16px rgba(97, 57, 246, 0.1);
}

.featured-card:hover {
    transform: translateY(-12px) scale(1.04);
}

/* 顶部装饰线 */
.feature-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.feature-card-modern:hover::before {
    transform: scaleX(1);
}

/* 图标容器 */
.feature-icon-container {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color), transparent);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    position: relative;
    transition: all 0.4s ease;
}

.feature-icon-main {
    font-size: 36px;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 2;
}

.feature-card-modern:hover .feature-icon-main {
    transform: scale(1.2) rotateY(360deg);
}

/* 装饰图标 */
.feature-decorative-icons {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 8px;
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.4s ease 0.1s;
}

.feature-card-modern:hover .feature-decorative-icons {
    opacity: 0.6;
    transform: translateX(0);
}

.decorative-icon {
    font-size: 16px;
    color: var(--primary-color);
    animation: float 2s ease-in-out infinite;
}

.decorative-icon:nth-child(2) { animation-delay: 0.3s; }
.decorative-icon:nth-child(3) { animation-delay: 0.6s; }

/* 提示框 */
.feature-tooltip {
    position: absolute;
    top: -45px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 1000;
    white-space: nowrap;
}

.feature-card-modern:hover .feature-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(-8px);
}

/* 紧迫感指示器 */
.urgency-indicator {
    position: absolute;
    top: 16px;
    right: 16px;
    background: linear-gradient(45deg, #ff4757, #ff6b7a);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 600;
    animation: urgent-pulse 1.5s infinite;
    z-index: 10;
}

/* 价值突出显示 */
.value-highlight {
    position: absolute;
    top: -8px;
    right: 24px;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #1a202c;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
    animation: value-shine 2s infinite;
    z-index: 10;
}

/* 稀缺性提示 */
.scarcity-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(45deg, #ff4757, #ff6b7a);
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    margin-top: 12px;
    animation: scarcity-blink 3s infinite;
}

/* 社会证明元素 */
.social-proof-mini {
    position: absolute;
    bottom: 16px;
    left: 16px;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: #666;
    opacity: 0;
    transition: opacity 0.3s ease 0.2s;
}

.feature-card-modern:hover .social-proof-mini {
    opacity: 1;
}

.users-count {
    color: var(--primary-color);
    font-weight: 600;
}

/* 进度指示器 */
.feature-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--primary-color);
    width: 0%;
    transition: width 1.5s ease;
}

.feature-card-modern:hover .feature-progress {
    width: 100%;
}

/* 从众效应元素 */
.bandwagon-effect {
    position: relative;
    margin-top: 16px;
    padding: 12px;
    background: linear-gradient(45deg, #e8f5e8, #f0f9ff);
    border-radius: 8px;
    border-left: 4px solid #10b981;
}

.user-avatars {
    display: flex;
    margin-bottom: 8px;
    align-items: center;
}

.avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(45deg, #2563EB, #2A7AF2);
    margin-left: -8px;
    border: 2px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: white;
    font-weight: 600;
}

.avatar:first-child {
    margin-left: 0;
}

/* 价格锚定效果 */
.price-anchoring {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    justify-content: center;
}

/* 已移除重复的 .original-price 和 .current-price 定义，统一使用主定义（2101-2131行） */

.discount-badge {
    background: #ef4444;
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

/* 卡片标题和文本 */
.feature-card-modern h3 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 16px;
}

.feature-card-modern p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 16px;
}

/* 动画定义 */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

@keyframes urgent-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes value-shine {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05) rotateZ(1deg); }
}

@keyframes scarcity-blink {
    0%, 50%, 100% { opacity: 1; }
    25%, 75% { opacity: 0.7; }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .features-grid-modern {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 0 16px;
    }

    .feature-card-modern {
        padding: 32px 24px;
        border-radius: 20px;
        /* 移除hover效果，改为触摸优化 */
        transition: transform 0.2s ease;
    }

    .feature-card-modern:hover {
        transform: none;
    }

    .feature-card-modern:active {
        transform: scale(0.98);
        box-shadow: 0 2px 8px rgba(97, 57, 246, 0.15);
    }

    .featured-card {
        transform: none;
    }

    .feature-icon-container {
        width: 64px;
        height: 64px;
    }

    .feature-icon-main {
        font-size: 28px;
    }

    .decorative-icon {
        animation: none;
    }

    .urgency-indicator,
    .value-highlight {
        position: static;
        display: inline-block;
        margin: 8px 4px;
    }

    .social-proof-mini {
        position: static;
        opacity: 1;
        margin-top: 12px;
        justify-content: center;
    }
}

/* 高对比度模式适配 */
@media (prefers-contrast: high) {
    .feature-card-commercial {
        --primary-color: #4c1d95;
        --secondary-color: #3730a3;
    }

    .feature-card-keyword {
        --primary-color: #3730a3;
        --secondary-color: #1e3a8a;
    }

    .feature-card-network {
        --primary-color: #581c87;
        --secondary-color: #4c1d95;
    }

    .feature-card-ai {
        --primary-color: #6b21a8;
        --secondary-color: #581c87;
    }

    .feature-card-writing {
        --primary-color: #4c1d95;
        --secondary-color: #3b0764;
    }

    .feature-card-dominate {
        --primary-color: #3b0764;
        --secondary-color: #1e1b4b;
    }
}

/* 减少动画偏好设置 */
@media (prefers-reduced-motion: reduce) {
    .feature-card-modern,
    .feature-icon-main,
    .decorative-icon,
    .feature-progress {
        transition: none !important;
        animation: none !important;
    }
}

/* ===== 优化版测试登录弹窗 - Context7 + ultrathink ===== */
.test-login-modal-optimized {
    max-width: 480px;
    width: 92%;
    padding: 0;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
    box-shadow: 0 20px 60px rgba(97, 57, 246, 0.15);
    position: relative;
}

/* 价值主张头部 */
.test-value-header {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    padding: 24px 24px 20px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.test-value-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(180deg); }
}

.test-value-header h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 8px 0;
    line-height: 1.3;
    position: relative;
    z-index: 2;
}

.test-subtitle {
    font-size: 14px;
    opacity: 0.9;
    margin: 0 0 16px 0;
    position: relative;
    z-index: 2;
}

.test-urgency-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 16px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 2;
}

.test-urgency {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
}

.test-timer {
    font-size: 12px;
    opacity: 0.8;
    color: #fff;
}

/* 一键登录区域 */
.test-one-click-section {
    padding: 24px;
}

.test-promise {
    display: flex;
    justify-content: space-around;
    margin-bottom: 24px;
    padding: 16px;
    background: #f0f4ff;
    border-radius: 12px;
    border: 1px solid #e0e7ff;
}

.promise-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: #4338ca;
    text-align: center;
}

.promise-icon {
    font-size: 18px;
    margin-bottom: 4px;
}

/* 主要CTA按钮 - Context7标准44px+触摸优化 */
.btn-test-primary {
    width: 100%;
    min-height: 56px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    border-radius: 16px;
    padding: 16px 20px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    box-shadow: 0 8px 32px rgba(97, 57, 246, 0.3);
    -webkit-tap-highlight-color: transparent;
}

.btn-test-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(97, 57, 246, 0.4);
}

.btn-test-primary:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 4px 16px rgba(97, 57, 246, 0.3);
}

.btn-test-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-test-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s;
}

.btn-test-primary:hover::before {
    left: 100%;
}

.btn-icon {
    font-size: 20px;
}

.btn-text {
    font-size: 16px;
    font-weight: 600;
}

.btn-subtext {
    font-size: 12px;
    opacity: 0.8;
    margin-top: 2px;
}

/* 手动登录选项 */
.manual-login-option {
    border-top: 1px solid #e2e8f0;
    padding-top: 20px;
    margin-top: 16px;
}

.manual-hint {
    font-size: 14px;
    color: #64748b;
    text-align: center;
    margin-bottom: 16px;
}

.credentials-row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.credential-item {
    flex: 1;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    min-height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.credential-item:hover {
    border-color: #2563EB;
    background: #f0f4ff;
    transform: translateY(-1px);
}

.credential-item:active {
    transform: scale(0.98);
}

.credential-label {
    font-size: 12px;
    color: #64748b;
    font-weight: 500;
    margin-bottom: 4px;
}

.credential-value {
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
    font-family: 'Courier New', monospace;
}

.copy-hint {
    font-size: 10px;
    color: #2563EB;
    margin-top: 4px;
    opacity: 0.8;
}

/* 次要CTA按钮 - Context7标准 */
.btn-test-secondary {
    width: 100%;
    min-height: 48px;
    background: transparent;
    color: #2563EB;
    border: 2px solid #2563EB;
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
    -webkit-tap-highlight-color: transparent;
}

.btn-test-secondary:hover {
    background: #2563EB;
    color: white;
    transform: translateY(-1px);
}

.btn-test-secondary:active {
    transform: scale(0.98);
}

/* 信任信号 */
.test-trust-signals {
    display: flex;
    justify-content: space-around;
    padding: 16px 0;
    background: #f8faff;
    border-radius: 12px;
    border: 1px solid #e0e7ff;
}

.trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.trust-number {
    font-size: 18px;
    font-weight: 700;
    color: #2563EB;
}

.trust-text {
    font-size: 11px;
    color: #64748b;
    text-align: center;
}

/* 关闭按钮优化 - Context7触摸标准 */
.test-login-modal-optimized .close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    -webkit-tap-highlight-color: transparent;
}

.test-login-modal-optimized .close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.test-login-modal-optimized .close:active {
    transform: scale(0.95);
}

/* 移动端响应式优化 - Context7标准 */
@media (max-width: 480px) {
    .test-login-modal-optimized {
        max-width: 95vw;
        width: 95vw;
        margin: 10px;
        max-height: 90vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .test-value-header {
        padding: 20px 20px 16px 20px;
    }

    .test-value-header h3 {
        font-size: 20px;
        margin-bottom: 6px;
    }

    .test-subtitle {
        font-size: 13px;
        margin-bottom: 12px;
    }

    .test-one-click-section {
        padding: 20px;
    }

    .test-promise {
        flex-direction: column;
        gap: 12px;
        padding: 16px;
    }

    .promise-item {
        flex-direction: row;
        text-align: left;
        gap: 8px;
    }

    .promise-icon {
        font-size: 16px;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .btn-test-primary {
        min-height: 52px;
        padding: 14px 18px;
        font-size: 15px;
    }

    .btn-icon {
        font-size: 18px;
    }

    .btn-text {
        font-size: 15px;
    }

    .btn-subtext {
        font-size: 11px;
    }

    .credentials-row {
        flex-direction: column;
        gap: 8px;
    }

    .credential-item {
        min-height: 48px;
        padding: 10px;
    }

    .credential-value {
        font-size: 18px;
    }

    .btn-test-secondary {
        min-height: 44px;
        font-size: 13px;
    }

    .trust-item {
        gap: 2px;
    }

    .trust-number {
        font-size: 16px;
    }

    .trust-text {
        font-size: 10px;
    }
}

/* ========================================
   优化版测试登录弹窗样式 - ultrathink + context7
   ======================================== */

/* 弹窗主容器 */
.test-login-modal-optimized {
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
    border-radius: 20px;
    padding: 32px 24px;
    max-width: 500px;
    width: 90vw;
    position: relative;
    box-shadow: 0 25px 50px rgba(97, 57, 246, 0.15);
    border: 1px solid rgba(97, 57, 246, 0.1);
}

/* 价值主张标题区域 */
.test-value-header {
    text-align: center;
    margin-bottom: 28px;
}

.test-value-header h3 {
    color: #2d3748;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.3;
}

.test-subtitle {
    color: #4a5568;
    font-size: 15px;
    margin-bottom: 16px;
    line-height: 1.4;
}

.test-urgency-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #ff4757, #ff3838);
    color: white;
    padding: 10px 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
}

.test-timer {
    opacity: 0.9;
    font-size: 13px;
}

/* 一键登录区域 */
.test-one-click-section {
    margin-bottom: 24px;
}

.test-promise {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.promise-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 12px 8px;
    background: rgba(97, 57, 246, 0.05);
    border-radius: 12px;
    font-size: 13px;
    color: #4a5568;
}

.promise-icon {
    font-size: 18px;
    margin-bottom: 4px;
}

/* 主要CTA按钮 - Context7优化：最小44px触摸目标 */
.btn-test-primary {
    width: 100%;
    min-height: 56px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    border-radius: 16px;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(97, 57, 246, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.btn-test-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(97, 57, 246, 0.4);
}

.btn-test-primary:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 20px;
    margin-bottom: 2px;
}

.btn-text {
    font-size: 16px;
    font-weight: 700;
}

.btn-subtext {
    font-size: 12px;
    opacity: 0.9;
    font-weight: 400;
}

/* 手动登录备选方案 */
.manual-login-option {
    padding: 20px;
    background: rgba(248, 250, 255, 0.8);
    border-radius: 16px;
    border: 1px solid rgba(97, 57, 246, 0.1);
}

.manual-hint {
    text-align: center;
    color: #718096;
    font-size: 14px;
    margin-bottom: 16px;
}

.credentials-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.credential-item {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 44px; /* Context7标准 */
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.credential-item:hover {
    border-color: #2563EB;
    background: rgba(97, 57, 246, 0.02);
}

.credential-label {
    font-size: 11px;
    color: #718096;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.credential-value {
    font-size: 16px;
    font-weight: 600;
    color: #2d3748;
    font-family: 'Courier New', monospace;
}

.copy-hint {
    font-size: 10px;
    color: #2563EB;
    opacity: 0.7;
}

/* 次要CTA按钮 */
.btn-test-secondary {
    width: 100%;
    min-height: 44px;
    background: white;
    color: #2563EB;
    border: 2px solid #2563EB;
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-test-secondary:hover {
    background: #2563EB;
    color: white;
}

/* 信任信号 */
.test-trust-signals {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding-top: 20px;
    border-top: 1px solid rgba(97, 57, 246, 0.1);
}

.trust-item {
    text-align: center;
}

.trust-number {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #2563EB;
    margin-bottom: 4px;
}

.trust-text {
    font-size: 12px;
    color: #718096;
    line-height: 1.3;
}

/* 移动端优化 - Context7标准 */
@media (max-width: 480px) {
    .test-login-modal-optimized {
        padding: 24px 20px;
        margin: 20px;
        width: calc(100vw - 40px);
        max-width: none;
    }

    .test-value-header h3 {
        font-size: 20px;
    }

    .test-promise {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .promise-item {
        flex-direction: row;
        text-align: left;
        padding: 16px;
    }

    .promise-icon {
        margin-right: 12px;
        margin-bottom: 0;
    }

    .credentials-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .credential-item {
        min-height: 60px; /* 更大的移动端触摸目标 */
        padding: 16px;
    }

    .test-trust-signals {
        grid-template-columns: 1fr;
        gap: 12px;
        text-align: left;
    }

    .trust-item {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .trust-number {
        margin-bottom: 0;
    }
}

/* 平板设备优化 */
@media (min-width: 481px) and (max-width: 768px) {
    .test-login-modal-optimized {
        max-width: 450px;
        padding: 28px 24px;
    }

    .credentials-row {
        gap: 16px;
    }

    .credential-item {
        min-height: 48px;
        padding: 14px;
    }
}

/* 加载状态样式 */
.btn-test-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.btn-test-primary .loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

/* 无障碍性优化 */
@media (prefers-reduced-motion: reduce) {
    .btn-test-primary,
    .credential-item,
    .btn-test-secondary {
        transition: none;
    }

    .btn-test-primary .loading {
        animation: none;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .test-login-modal-optimized {
        border: 3px solid #000000;
        background: #ffffff;
    }

    .btn-test-primary {
        background: #000000;
        border: 2px solid #ffffff;
    }

    .credential-item {
        border: 2px solid #000000;
    }
}
/* ============================================
   测试登录弹窗 - 极简版样式
   ============================================ */

.test-login-modal-simple {
    max-width: 360px;
    width: 90%;
    padding: 40px 32px;
    text-align: center;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    position: relative;
}

.test-login-modal-simple h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin: 0 0 32px 0;
    letter-spacing: -0.5px;
}

/* 测试账号信息区域 */
.test-credentials-simple {
    background: #f8faff;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
    border: 1px solid #e8f2ff;
}

.credential-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.credential-row:not(:last-child) {
    border-bottom: 1px solid #e8f2ff;
    margin-bottom: 8px;
    padding-bottom: 16px;
}

.credential-row .label {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.credential-row .value {
    font-size: 16px;
    color: #333;
    font-weight: 600;
    font-family: 'Monaco', 'Consolas', monospace;
    background: #fff;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid #ddd;
}

/* 试用按钮 */
.btn-test-simple {
    width: 100%;
    min-height: 56px;
    padding: 16px 24px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn-test-simple:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(97, 57, 246, 0.3);
}

.btn-test-simple:active {
    transform: translateY(0);
}

/* 移动端优化 */
@media (max-width: 480px) {
    .test-login-modal-simple {
        max-width: 95vw;
        padding: 32px 24px;
        border-radius: 12px;
    }
    
    .test-login-modal-simple h3 {
        font-size: 18px;
        margin-bottom: 24px;
    }
    
    .test-credentials-simple {
        padding: 20px;
        margin-bottom: 24px;
    }
    
    .credential-row .value {
        font-size: 15px;
        padding: 6px 12px;
    }
    
    .btn-test-simple {
        min-height: 48px;
        font-size: 15px;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .test-credentials-simple {
        background: #f0f0f0;
        border: 2px solid #333;
    }
    
    .credential-row .value {
        border: 2px solid #333;
        background: #fff;
    }
}

/* 减少动画偏好设置 */
@media (prefers-reduced-motion: reduce) {
    .btn-test-simple {
        transition: none;
    }
}

/* 关于我们部分样式 */
.about-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 28px;
    color: #1a202c;
    margin-bottom: 20px;
    font-weight: 700;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 30px;
}

.about-features {
    list-style: none;
    padding: 0;
}

.about-features li {
    padding: 12px 0;
    font-size: 16px;
    color: #2d3748;
    border-bottom: 1px solid #e2e8f0;
}

.about-features li:last-child {
    border-bottom: none;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-card {
    background: #ffffff;
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
}

.stat-card h4 {
    font-size: 36px;
    color: #2563EB;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-card p {
    font-size: 14px;
    color: #64748b;
    margin: 0;
}

/* 核心功能展示样式 */
.core-features {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
}

.feature-showcase {
    max-width: 1200px;
    margin: 0 auto;
}

.showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
    padding: 40px;
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
    transition: all 0.3s ease;
}

.showcase-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.12);
}

.showcase-item.reverse {
    grid-template-columns: 1fr 1fr;
}

.showcase-item.reverse .showcase-image {
    order: 2;
}

.showcase-item.reverse .showcase-content {
    order: 1;
}

.showcase-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #2563EB 0%, #2A7AF2 100%);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 80px;
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.3);
}

.showcase-content h3 {
    font-size: 28px;
    color: #1a202c;
    margin-bottom: 20px;
    font-weight: 700;
}

.showcase-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 20px;
}

.showcase-content ul {
    list-style: none;
    padding: 0;
}

.showcase-content ul li {
    padding: 10px 0;
    font-size: 15px;
    color: #2d3748;
    line-height: 1.6;
}

/* 响应式设计 - 关于我们和核心功能 */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .showcase-item,
    .showcase-item.reverse {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 20px;
        margin-bottom: 40px;
    }

    .showcase-item.reverse .showcase-image,
    .showcase-item.reverse .showcase-content {
        order: unset;
    }

    .image-placeholder {
        width: 150px;
        height: 150px;
        font-size: 60px;
    }

    .about-text h3,
    .showcase-content h3 {
        font-size: 22px;
    }

    .stat-card h4 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 20px;
    }
}

/* ================================================
   4大核心价值模块样式 - 合并优化版
   ================================================ */

.core-values {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
    position: relative;
}

.core-values::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%236139F6" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.value-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.15);
    border-color: rgba(37, 99, 235, 0.2);
}

.value-card.featured-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
    border-color: rgba(37, 99, 235, 0.3);
    position: relative;
    overflow: hidden;
}

.value-card.featured-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
}

.value-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
}

.value-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1a202c;
    margin: 0;
    flex: 1;
}

.value-icon {
    font-size: 48px;
    line-height: 1;
    min-width: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.urgency-badge {
    background: linear-gradient(135deg, #ff4757, #ff6348);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(255, 71, 87, 0.3);
}

.value-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-section h4 {
    font-size: 16px;
    font-weight: 600;
    color: #2563EB;
    margin-bottom: 12px;
}

.feature-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-section ul li {
    padding: 8px 0;
    font-size: 15px;
    line-height: 1.6;
    color: #4a5568;
    border-bottom: 1px solid rgba(37, 99, 235, 0.1);
}

.feature-section ul li:last-child {
    border-bottom: none;
}

.social-proof-mini {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(42, 122, 242, 0.05));
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    color: #4a5568;
    text-align: center;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.social-proof-mini .users-count {
    font-size: 18px;
    font-weight: 700;
    color: #2563EB;
    margin: 0 4px;
}

.value-cta {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(37, 99, 235, 0.1);
}

.value-cta button {
    width: 100%;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
}

.value-cta .btn-primary {
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.value-cta .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.value-cta .btn-outline {
    background: transparent;
    color: #2563EB;
    border: 2px solid #2563EB;
}

.value-cta .btn-outline:hover {
    background: #2563EB;
    color: white;
}

/* 响应式设计 - 平板设备 */
@media (max-width: 768px) {
    .core-values {
        padding: 60px 0;
    }

    .values-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .value-card {
        padding: 30px 24px;
    }

    .value-header {
        flex-direction: column;
        gap: 12px;
    }

    .value-header h3 {
        font-size: 20px;
    }

    .value-icon {
        font-size: 40px;
        min-width: 48px;
    }

    .urgency-badge {
        align-self: flex-start;
    }

    .feature-section ul li {
        font-size: 14px;
    }
}

/* 响应式设计 - 移动设备 */
@media (max-width: 480px) {
    .core-values {
        padding: 40px 0;
    }

    .value-card {
        padding: 24px 20px;
    }

    .value-header h3 {
        font-size: 18px;
    }

    .value-icon {
        font-size: 36px;
        min-width: 40px;
    }

    .feature-section h4 {
        font-size: 15px;
    }

    .feature-section ul li {
        font-size: 13px;
        padding: 6px 0;
    }

    .social-proof-mini {
        padding: 10px 12px;
        font-size: 13px;
    }

    .social-proof-mini .users-count {
        font-size: 16px;
    }

    .value-cta button {
        padding: 12px 20px;
        font-size: 15px;
    }
}


/* ========================================
   关于我们页面样式 - about.html
   ======================================== */

/* 主页简化版关于我们 */
.about-content-simple {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
    text-align: center;
}

.about-intro {
    max-width: 800px;
}

.about-intro h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 16px;
}

.about-intro p {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
}

.about-cta {
    margin-top: 20px;
}

.about-cta .btn-outline {
    padding: 14px 32px;
    font-size: 16px;
    text-decoration: none;
    display: inline-block;
}

/* 页面标题横幅 */
.page-header {
    background: linear-gradient(135deg, #2563EB 0%, #2A7AF2 100%);
    padding: 100px 20px 80px;
    text-align: center;
    color: white;
    margin-top: 80px;
}

.page-header h1 {
    font-size: 48px;
    margin-bottom: 16px;
    font-weight: 700;
}

.page-subtitle {
    font-size: 20px;
    opacity: 0.95;
    font-weight: 400;
}

/* 关于我们详细内容 */
.about-detail-section {
    padding: 80px 20px;
    background: #f8faff;
}

.about-detail-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-main h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 24px;
}

.lead-text {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 40px;
    padding: 20px;
    background: white;
    border-left: 4px solid #2563EB;
    border-radius: 8px;
}

.about-main h3 {
    font-size: 24px;
    color: #333;
    margin-top: 40px;
    margin-bottom: 16px;
}

.about-main p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.values-list {
    list-style: none;
    margin-top: 20px;
}

.values-list li {
    padding: 12px 0;
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

.values-list li strong {
    color: #2563EB;
    font-weight: 600;
}

/* 统计数据详细版 */
.about-stats-detail {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.stat-card-large {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    background: linear-gradient(135deg, #2563EB, #2A7AF2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 18px;
    color: #333;
    font-weight: 600;
    margin-bottom: 8px;
}

.stat-desc {
    font-size: 14px;
    color: #999;
    line-height: 1.5;
}

/* 核心优势详解 */
.advantages-detail-section {
    padding: 80px 20px;
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 40px auto 0;
}

.advantage-detail-card {
    background: #f8faff;
    padding: 40px;
    border-radius: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-detail-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.15);
}

.advantage-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.advantage-detail-card h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 16px;
}

.advantage-detail-card p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.advantage-detail-card ul {
    list-style: none;
}

.advantage-detail-card ul li {
    padding: 8px 0;
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* 技术实力 */
.tech-strength-section {
    padding: 80px 20px;
    background: linear-gradient(135deg, #f8faff 0%, #e8f2ff 100%);
}

.tech-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto 0;
}

.tech-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.tech-card h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
}

.tech-card ul {
    list-style: none;
}

.tech-card ul li {
    padding: 8px 0;
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 发展历程 */
.timeline-section {
    padding: 80px 20px;
    background: white;
}

.timeline {
    max-width: 900px;
    margin: 40px auto 0;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, #2563EB, #2A7AF2);
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    position: relative;
}

.timeline-item:nth-child(even) .timeline-year {
    order: 2;
}

.timeline-item:nth-child(even) .timeline-content {
    order: 1;
    text-align: right;
}

.timeline-year {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: #2563EB;
}

.timeline-year::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: #2563EB;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 0 0 4px #2563EB;
}

.timeline-content {
    background: #f8faff;
    padding: 30px;
    border-radius: 16px;
}

.timeline-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 12px;
}

.timeline-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

/* 客户评价 */
.testimonials-section {
    padding: 80px 20px;
    background: #f8faff;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto 0;
}

.testimonial-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.testimonial-stars {
    font-size: 20px;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.testimonial-author strong {
    font-size: 16px;
    color: #333;
}

.testimonial-author span {
    font-size: 14px;
    color: #999;
}

/* CTA区域 */
.about-cta-section {
    padding: 80px 20px;
    background: linear-gradient(135deg, #2563EB 0%, #2A7AF2 100%);
    text-align: center;
}

.about-cta-content h2 {
    font-size: 36px;
    color: white;
    margin-bottom: 16px;
}

.about-cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.about-cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-large {
    padding: 16px 48px;
    font-size: 18px;
}

/* 响应式设计 - 平板 */
@media (max-width: 768px) {
    .page-header {
        padding: 80px 20px 60px;
    }

    .page-header h1 {
        font-size: 36px;
    }

    .page-subtitle {
        font-size: 16px;
    }

    .about-detail-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .tech-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 20px;
        padding-left: 60px;
    }

    .timeline-item:nth-child(even) .timeline-year {
        order: 1;
    }

    .timeline-item:nth-child(even) .timeline-content {
        order: 2;
        text-align: left;
    }

    .timeline-year {
        justify-content: flex-start;
        font-size: 24px;
    }

    .timeline-year::before {
        left: 20px;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 响应式设计 - 移动端 */
@media (max-width: 480px) {
    .page-header {
        padding: 60px 15px 40px;
        margin-top: 60px;
    }

    .page-header h1 {
        font-size: 28px;
    }

    .page-subtitle {
        font-size: 14px;
    }

    .about-detail-section,
    .advantages-detail-section,
    .tech-strength-section,
    .timeline-section,
    .testimonials-section,
    .about-cta-section {
        padding: 40px 15px;
    }

    .about-main h2 {
        font-size: 24px;
    }

    .lead-text {
        font-size: 15px;
        padding: 15px;
    }

    .about-main h3 {
        font-size: 20px;
    }

    .tech-cards {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 36px;
    }

    .about-cta-content h2 {
        font-size: 24px;
    }

    .about-cta-content p {
        font-size: 15px;
    }

    .about-cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-large {
        padding: 14px 32px;
        font-size: 16px;
        width: 100%;
    }
}

/* ================================================
   无障碍与高对比度优化 - UI/UX最佳实践
   ================================================ */

/* 高对比度模式 - 价格显示优化 */
@media (prefers-contrast: high) {
    .current-price {
        color: #1d4ed8 !important;
        font-weight: 800;
    }

    .original-price {
        color: #666 !important;
        text-decoration: line-through double;
    }

    .section-title {
        color: #000000 !important;
        font-weight: 800;
    }

    .pricing-card.featured {
        border-width: 3px;
        border-color: #000000 !important;
    }
}

/* 减少动画偏好 - 价格动画禁用 */
@media (prefers-reduced-motion: reduce) {
    .discount-label,
    .value-badge {
        animation: none !important;
    }

    .pricing-card.featured .current-price {
        text-shadow: none;
        color: #2563EB !important;
    }

    .pulse-discount {
        animation: none !important;
    }
}

/* ================================================
   价格容器高度统一 - 视觉一致性
   ================================================ */
.pricing-card .price {
    min-height: 60px;
}

/* ================================================
   核心价值标题特殊优化
   ================================================ */
.core-values .section-title {
    word-spacing: 2px;
}