/* ============================================
   考证助手 - 精致视觉设计 v3.1
   风格：现代简约 + 精致细节 + 优雅交互
   更新：全面提升视觉品质，增强现代感，优化视觉层次
   ============================================ */

/* CSS Variables - 精致配色系统 */
:root {
    /* 主色调 - 更精致的品牌蓝 - 提升饱和度和对比度 */
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-lighter: #60a5fa;
    --primary-dark: #1d4ed8;
    --primary-darker: #1e40af;
    --primary-subtle: #eff6ff;
    --primary-soft: #dbeafe;
    
    /* 辅助色 - 精致调色板 */
    --secondary: #0ea5e9;
    --secondary-light: #38bdf8;
    --accent: #f97316;
    --accent-light: #fb923c;
    --success: #22c55e;
    --success-light: #86efac;
    --success-soft: #dcfce7;
    --warning: #f59e0b;
    --warning-light: #fbbf24;
    --warning-soft: #fef3c7;
    --danger: #ef4444;
    --danger-light: #f87171;
    --danger-soft: #fee2e2;
    
    /* 背景色 - 温暖层次 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-quaternary: #e2e8f0;
    --bg-elevated: #ffffff;
    --bg-overlay: rgba(15, 23, 42, 0.6);
    
    /* 文字色 - 精致灰度 */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-tertiary: #64748b;
    --text-muted: #94a3b8;
    --text-placeholder: #cbd5e1;
    --text-inverse: #ffffff;
    
    /* 边框和分割 - 更精致 */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-strong: #94a3b8;
    --divider: #f1f5f9;
    --border-accent: #3b82f6;
    
    /* 卡片样式 - 精致阴影系统 */
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --card-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --card-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --card-shadow-elevated: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --card-shadow-glow: 0 0 20px rgba(59, 109, 232, 0.15);
    
    /* 渐变 - 精致现代 - 提升视觉冲击力 */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    --gradient-primary-soft: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    --gradient-primary-hover: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #0284c7 100%);
    --gradient-secondary: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --gradient-success: linear-gradient(135deg, #22c55e 0%, #4ade80 100%);
    --gradient-purple: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
    --gradient-pink: linear-gradient(135deg, #ec4899 0%, #f472b6 100%);
    --gradient-hero: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #0ea5e9 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-warm: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    
    /* 圆角 - 统一设计 */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* 过渡动画 - 流畅体验 */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* 间距系统 - 节奏感 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* 字体系统 - 精致排版 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* 字体大小 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
}

/* ============================================
   基础样式优化 - 精致细节
   ============================================ */

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    background: #f8fafc;
    color: #0f172a;
    line-height: 1.65;
    overflow-x: hidden;
    font-size: 15px;
    letter-spacing: -0.01em;
    font-feature-settings: 'kern' 1, 'liga' 1;
}

/* 精致选择高亮 */
:::-moz-selection,
::selection {
    background: rgba(37, 99, 235, 0.15);
    color: #1e40af;
}

/* 链接基础样式 */
a {
    color: #2563eb;
    text-decoration: none;
    transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

a:hover {
    color: #1d4ed8;
}

/* 图片优化 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 焦点样式 */
:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Animated Background - 更柔和 */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 25s ease-in-out infinite;
}

.bg-shape-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #3b82f6, #0ea5e9);
    top: -150px;
    right: -80px;
    animation-delay: 0s;
}

.bg-shape-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    bottom: -100px;
    left: -80px;
    animation-delay: -8s;
}

.bg-shape-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #06b6d4, #10b981);
    top: 40%;
    right: 25%;
    animation-delay: -16s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.3; }
    33% { transform: translate(20px, -20px) scale(1.03); opacity: 0.25; }
    66% { transform: translate(-15px, 10px) scale(0.98); opacity: 0.35; }
}

/* Page Loader - 更精致 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 56px;
    height: 56px;
    border: 3px solid #e2e8f0;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

.loader-text {
    color: #334155;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Main Header Navigation */
.main-header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.btn {
    padding: 11px 24px;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    color: #fff;
    box-shadow: 
        0 4px 16px rgba(37, 99, 235, 0.35),
        0 2px 4px rgba(79, 70, 229, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.2), transparent);
    border-radius: 9999px 9999px 0 0;
    pointer-events: none;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 
        0 8px 28px rgba(37, 99, 235, 0.45),
        0 4px 10px rgba(79, 70, 229, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    background: linear-gradient(135deg, #1d4ed8 0%, #4338ca 100%);
}

.btn-primary:hover::after {
    width: 300px;
    height: 300px;
}

.btn-primary:active {
    transform: translateY(-1px);
    box-shadow: 
        0 4px 12px rgba(37, 99, 235, 0.35),
        0 2px 4px rgba(79, 70, 229, 0.2);
}

.btn-secondary {
    background: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%);
    color: #fff;
    box-shadow: 0 3px 12px rgba(14, 165, 233, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

.btn-outline {
    background: transparent;
    color: #334155;
    border: 1.5px solid #cbd5e1;
}

.btn-outline:hover {
    background: #eff6ff;
    border-color: #2563eb;
    color: #2563eb;
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.9);
    color: #0f172a;
    backdrop-filter: blur(10px);
    border: 1px solid #e2e8f0;
}

.btn-ghost:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.btn-small {
    padding: 8px 18px;
    font-size: 0.82rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 40px 100px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    animation: slideInLeft 1s ease;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 10px 20px;
    border-radius: 9999px;
    font-size: 0.9rem;
    color: #2563eb;
    margin-bottom: 25px;
    font-weight: 600;
}

.hero-badge i {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 25px;
    color: #0f172a;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.25rem;
    color: #334155;
    margin-bottom: 35px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 14px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: #334155;
    margin-top: 5px;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    animation: slideInRight 1s ease;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-image-container {
    position: relative;
    width: 100%;
    height: 500px;
}

.hero-main-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(99, 102, 241, 0.3);
}

.hero-main-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-main-image i {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.9);
    animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.floating-cards {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 14px;
    padding: 20px 25px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    animation: floatCard 4s ease-in-out infinite;
    pointer-events: auto;
}

.floating-card:nth-child(1) {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}

.floating-card:nth-child(2) {
    bottom: 20%;
    left: -30px;
    animation-delay: -1.5s;
}

.floating-card:nth-child(3) {
    top: 50%;
    right: -40px;
    animation-delay: -3s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.floating-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.floating-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 5px;
}

.floating-card p {
    font-size: 0.85rem;
    color: #334155;
}

/* Search Section */
.search-section {
    padding: 40px;
    position: relative;
    z-index: 10;
}

.search-container {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid #e2e8f0;
    border-radius: 9999px;
    padding: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.search-container:focus-within {
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    border-color: #2563eb;
}

.search-icon {
    font-size: 1.2rem;
    color: #94a3b8;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #0f172a;
    font-size: 1rem;
    padding: 12px;
}

.search-input::placeholder {
    color: #94a3b8;
}

.search-btn {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    border: none;
    border-radius: 9999px;
    padding: 14px 32px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.search-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

/* Section Styles */
.section {
    padding: 100px 40px;
    position: relative;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 10px 24px;
    border-radius: 9999px;
    font-size: 0.9rem;
    color: #2563eb;
    margin-bottom: 20px;
    font-weight: 600;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: #0f172a;
}

.section-desc {
    font-size: 1.2rem;
    color: #334155;
    max-width: 600px;
    margin: 0 auto;
}

/* Banner Carousel */
.banner-section {
    padding: 0 40px 60px;
}

.banner-carousel {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border-radius: 18px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.banner-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-slide {
    min-width: 100%;
    padding: 60px 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.banner-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 40px;
    position: relative;
    z-index: 1;
}

.banner-icon {
    width: 140px;
    height: 140px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: #fff;
    animation: floatBannerIcon 3s ease-in-out infinite;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

@keyframes floatBannerIcon {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(5deg); }
}

.banner-text {
    text-align: left;
    color: #fff;
}

.banner-text h3 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 10px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.banner-text p {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 20px;
}

.banner-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    padding: 10px 24px;
    border-radius: 9999px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.banner-indicators {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.banner-dot.active {
    background: #fff;
    transform: scale(1.2);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.banner-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.banner-nav:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-50%) scale(1.1);
}

.banner-prev {
    left: 25px;
}

.banner-next {
    right: 25px;
}

/* Category List */
.category-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.category-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 20px 25px;
    text-decoration: none;
    color: inherit;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.category-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-item:hover {
    transform: translateX(8px) translateY(-3px);
    border-color: #2563eb;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.category-item:hover::before {
    opacity: 1;
}

.category-item.view-all {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    border-color: rgba(99, 102, 241, 0.3);
}

.category-item.view-all:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
}

.category-img {
    width: 56px;
    height: 56px;
    border-radius: 10px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
    transition: transform 0.3s ease;
}

.category-item:hover .category-img {
    transform: scale(1.1) rotate(5deg);
}

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

.category-info h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: #0f172a;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.category-info p {
    font-size: 0.85rem;
    color: #334155;
}

.category-info span {
    color: #2563eb;
    font-weight: 700;
}

.category-arrow {
    color: #94a3b8;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.category-item:hover .category-arrow {
    color: #2563eb;
    transform: translateX(5px);
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-15px);
    border-color: #2563eb;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

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

.feature-icon {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2.5rem;
    color: #fff;
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.35);
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotateY(180deg);
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #0f172a;
}

.feature-desc {
    font-size: 0.95rem;
    color: #334155;
    line-height: 1.7;
}

/* Stats Section */
.stats-section {
    padding: 80px 40px;
    background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.05) 50%, transparent 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-box {
    text-align: center;
    padding: 40px 25px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    transition: all 0.4s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.stat-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.stat-box .stat-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: #2563eb;
    transition: all 0.3s ease;
}

.stat-box:hover .stat-icon {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    color: #fff;
    transform: scale(1.1);
}

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    color: #334155;
    font-weight: 500;
}

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

.testimonial-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    padding: 40px 30px;
    position: relative;
    transition: all 0.4s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.testimonial-card:hover {
    transform: translateY(-10px);
    border-color: #2563eb;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.testimonial-quote {
    font-size: 4rem;
    color: #2563eb;
    opacity: 0.2;
    position: absolute;
    top: 10px;
    left: 20px;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-text {
    font-size: 1rem;
    color: #334155;
    line-height: 1.8;
    margin-bottom: 25px;
    padding-top: 20px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.author-info h5 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: #0f172a;
}

.author-info span {
    font-size: 0.9rem;
    color: #334155;
}

/* CTA Section */
.cta-section {
    padding: 100px 40px;
}

.cta-container {
    max-width: 1000px;
    margin: 0 auto;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    border-radius: 18px;
    padding: 80px 60px;
    position: relative;
    overflow: hidden;
    text-align: center;
    box-shadow: 0 30px 60px rgba(99, 102, 241, 0.3);
}

.cta-container::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: #fff;
}

.cta-desc {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 35px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Footer - 更现代 */
.footer {
    background: #0f172a;
    padding: 72px 40px 28px;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 56px;
}

.footer-brand {
    font-size: 1.6rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #c7d2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.75;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
}

.social-link:hover {
    background: #2563eb;
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2.5px;
    background: #3b82f6;
    border-radius: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
}

.footer-links a:hover {
    color: #fff;
    transform: translateX(3px);
}

.footer-links a i {
    font-size: 0.7rem;
    opacity: 0;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-links a:hover i {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-bottom a:hover {
    color: #fff;
}

/* ============================================
   新增模块样式
   ============================================ */

/* Top Banner - 更现代 */
.top-banner {
    background: linear-gradient(90deg, #dc2626 0%, #ef4444 100%);
    color: #fff;
    padding: 12px 0;
    position: relative;
    z-index: 1001;
}

.banner-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.banner-tag {
    background: rgba(255, 255, 255, 0.95);
    color: #dc2626;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.banner-text {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.banner-link {
    color: #fff;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 9999px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-link:hover {
    background: rgba(255, 255, 255, 0.25);
    gap: 8px;
}

.banner-close {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: rgba(255,255,255,0.8);
    cursor: pointer;
    font-size: 1rem;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-close:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* Document Download Section - 更精致 */
.doc-download-section {
    padding: 32px 0;
}

.doc-content {
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
    border-radius: 18px;
    padding: 36px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.doc-content:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.doc-title {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.doc-subtitle {
    color: #64748b;
    margin-bottom: 18px;
    font-size: 0.95rem;
}

.doc-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.doc-cat-item {
    padding: 8px 16px;
    background: #fff;
    border-radius: 9999px;
    color: #334155;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid #e2e8f0;
}

.doc-cat-item:hover {
    border-color: #2563eb;
    color: #2563eb;
    background: #eff6ff;
}

.doc-cat-item.active {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-doc-download {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 9999px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-doc-download:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

/* Hot Banks Section - 更现代 */
.hot-banks-section {
    padding: 48px 0;
}

.hot-banks-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.view-more-link {
    color: #2563eb;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 6px 12px;
    border-radius: 9999px;
}

.view-more-link:hover {
    gap: 8px;
    background: #eff6ff;
}

.hot-banks-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.hot-bank-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #ffffff;
    padding: 22px 20px;
    border-radius: 14px;
    text-decoration: none;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid #e2e8f0;
}

.hot-bank-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
}

.bank-icon {
    width: 52px;
    height: 52px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.hot-bank-card:hover .bank-icon {
    transform: scale(1.08);
}

.bank-icon.orange { background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%); }
.bank-icon.blue { background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%); }
.bank-icon.green { background: linear-gradient(135deg, #22c55e 0%, #4ade80 100%); }
.bank-icon.purple { background: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%); }

.bank-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 3px;
    letter-spacing: -0.01em;
}

.bank-info p {
    font-size: 0.8rem;
    color: #94a3b8;
    margin-bottom: 6px;
}

.bank-tag {
    display: inline-block;
    padding: 3px 10px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 9999px;
    letter-spacing: 0.02em;
}

/* Core Features Section - 更精致 */
.core-features-section {
    padding: 56px 0;
    background: #ffffff;
    border-top: 1px solid #f1f5f9;
    border-bottom: 1px solid #f1f5f9;
}

.section-header.center {
    text-align: center;
}

.section-header .section-title {
    font-size: 1.9rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.section-header .section-desc {
    color: #64748b;
    font-size: 1rem;
}

/* AI Features Section - 与核心模块样式一致 */
.core-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 36px;
}

.core-feature-item {
    text-align: center;
    padding: 28px 16px;
    border-radius: 14px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 1px solid transparent;
    background: #ffffff;
}

.core-feature-item:hover {
    background: #ffffff;
    transform: translateY(-6px);
    border-color: #e2e8f0;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.core-icon {
    width: 64px;
    height: 64px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: #fff;
    margin: 0 auto 18px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    position: relative;
    overflow: hidden;
}

.core-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.core-feature-item:hover .core-icon {
    transform: scale(1.12) rotate(-3deg);
    box-shadow: 0 10px 28px rgba(0,0,0,0.15);
}

.core-feature-item:hover .core-icon::before {
    opacity: 1;
}

.core-icon.blue { background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%); }
.core-icon.cyan { background: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%); }
.core-icon.green { background: linear-gradient(135deg, #22c55e 0%, #4ade80 100%); }
.core-icon.orange { background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%); }
.core-icon.purple { background: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%); }
.core-icon.red { background: linear-gradient(135deg, #ef4444, #f87171); }
.core-icon.pink { background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%); }
.core-icon.teal { background: linear-gradient(135deg, #14b8a6, #2dd4bf); }
.core-icon.indigo { background: linear-gradient(135deg, #6366f1, #818cf8); }

.core-feature-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.core-feature-item p {
    font-size: 0.75rem;
    color: #94a3b8;
}

/* AI Features Section - 深度优化 v3.3 */
.ai-features-section {
    padding: 72px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #f0f9ff 50%, #faf5ff 100%);
    border-bottom: 1px solid #f1f5f9;
    position: relative;
    overflow: hidden;
}

.ai-features-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    animation: aiBgFloat 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes aiBgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-2%, 2%) rotate(1deg); }
}

.ai-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 44px;
}

.ai-feature-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 36px 28px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06),
                0 1px 2px rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid rgba(226, 232, 240, 0.8);
    position: relative;
    overflow: hidden;
}

.ai-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #0ea5e9, #2563eb);
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ai-feature-card:hover::before {
    opacity: 1;
    animation: gradientFlow 2s linear infinite;
}

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.ai-feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15),
                0 8px 16px rgba(59, 130, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.2);
}

/* Card Glow Effect */
.ai-card-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.ai-feature-card:hover .ai-card-glow {
    opacity: 1;
}

/* Icon Wrapper */
.ai-icon-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
}

.ai-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 50%, #2563eb 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    margin: 0 auto;
    box-shadow: 0 12px 32px rgba(124, 58, 237, 0.35),
                0 4px 8px rgba(79, 70, 229, 0.2),
                inset 0 -2px 8px rgba(0, 0, 0, 0.1),
                inset 0 2px 8px rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    z-index: 2;
}

.ai-icon::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    right: 4px;
    bottom: 4px;
    background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, transparent 50%);
    border-radius: 50%;
    pointer-events: none;
}

.ai-feature-card:hover .ai-icon {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 16px 40px rgba(124, 58, 237, 0.45),
                0 6px 12px rgba(79, 70, 229, 0.3),
                inset 0 -2px 8px rgba(0, 0, 0, 0.1),
                inset 0 2px 8px rgba(255, 255, 255, 0.25);
}

/* Icon Ring Animation */
.ai-icon-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(124, 58, 237, 0.3);
    border-radius: 50%;
    transform: scale(0.8);
    opacity: 0;
    transition: all 0.4s ease;
}

.ai-feature-card:hover .ai-icon-ring {
    animation: ringPulse 1.5s ease-out infinite;
}

@keyframes ringPulse {
    0% {
        transform: scale(0.8);
        opacity: 0.6;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

.ai-feature-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
    transition: color 0.3s ease;
}

.ai-feature-card:hover h4 {
    color: #2563eb;
}

.ai-feature-card p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.7;
    margin: 0;
}

/* AI Card Badge */
.ai-card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.ai-feature-card:hover .ai-card-badge {
    opacity: 1;
    transform: translateY(0);
}

.ai-card-badge span {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, #7c3aed, #4f46e5);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
}

/* Stats Showcase Section - 深度优化 v3.4 */
.stats-showcase-section {
    padding: 88px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 50%, #f0f9ff 100%);
    position: relative;
    overflow: hidden;
}

.stats-showcase-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.15), transparent);
}

.stats-showcase-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
}

.stats-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.stats-left {
    padding-right: 20px;
}

.stats-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 16px;
    line-height: 1.3;
    letter-spacing: -0.025em;
    position: relative;
}

.stats-title .highlight {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    position: relative;
}

.stats-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.2), rgba(124, 58, 237, 0.2));
    border-radius: 4px;
    z-index: -1;
}

.stats-desc {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 32px;
    line-height: 1.75;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.stats-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.stat-tag {
    padding: 10px 20px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 9999px;
    font-size: 0.9rem;
    color: #334155;
    font-weight: 500;
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid rgba(226, 232, 240, 0.8);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.stat-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.8), transparent);
    border-radius: 9999px 9999px 0 0;
    pointer-events: none;
}

.stat-tag:hover {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: #2563eb;
    border-color: rgba(37, 99, 235, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.15),
                0 4px 8px rgba(37, 99, 235, 0.1);
}

.stats-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    height: 320px;
    perspective: 1000px;
}

.stats-visual::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, rgba(79, 70, 229, 0.03) 50%, transparent 70%);
    border-radius: 50%;
    animation: statsPulse 5s ease-in-out infinite;
}

.stats-visual::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    animation: statsPulse 5s ease-in-out infinite 1s;
}

@keyframes statsPulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 1; }
}

.stat-circle {
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.15),
        0 10px 20px rgba(0, 0, 0, 0.1),
        inset 0 -6px 20px rgba(0, 0, 0, 0.15),
        inset 0 6px 20px rgba(255, 255, 255, 0.25);
    transition: all 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.stat-circle::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    background: linear-gradient(145deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.05) 50%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}

.stat-circle::after {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: skewX(-15deg);
    pointer-events: none;
}

.stat-circle:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.2),
        0 15px 30px rgba(0, 0, 0, 0.15),
        inset 0 -6px 20px rgba(0, 0, 0, 0.2),
        inset 0 6px 20px rgba(255, 255, 255, 0.3);
}

.stat-circle:hover::after {
    animation: shimmer 0.8s ease-out;
}

@keyframes shimmer {
    0% { left: -50%; }
    100% { left: 150%; }
}

.stat-circle.large {
    width: 185px;
    height: 175px;
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    background: linear-gradient(145deg, #3b82f6 0%, #2563eb 40%, #4f46e5 100%);
}

.stat-circle.large:hover {
    transform: translateY(-52%) scale(1.06);
}

.stat-circle.medium {
    width: 135px;
    height: 135px;
    position: absolute;
    left: 145px;
    top: 20px;
    background: linear-gradient(145deg, #34d399 0%, #10b981 40%, #059669 100%);
    z-index: 2;
}

.stat-circle.small {
    width: 115px;
    height: 115px;
    position: absolute;
    left: 180px;
    bottom: 25px;
    background: linear-gradient(145deg, #fbbf24 0%, #f59e0b 40%, #d97706 100%);
    z-index: 1;
}

.stat-circle .number {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 1;
}

.stat-circle .label {
    font-size: 0.78rem;
    opacity: 0.95;
    font-weight: 500;
    margin-top: 4px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.stat-circle.medium .number { font-size: 1.3rem; }
.stat-circle.small .number { font-size: 1.1rem; }
.stat-circle.small .label { font-size: 0.72rem; }

.stats-right {
    position: relative;
    z-index: 1;
}

/* Feature Showcase Sections - 更优雅 */
.feature-showcase-section {
    padding: 72px 0;
}

.feature-showcase-section.alt {
    background: #f8fafc;
}

.showcase-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.showcase-row.reverse {
    direction: rtl;
}

.showcase-row.reverse > * {
    direction: ltr;
}

.showcase-title {
    font-size: 1.7rem;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.showcase-desc {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.75;
    margin-bottom: 22px;
}

.showcase-list {
    list-style: none;
    margin-bottom: 28px;
}

.showcase-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: #334155;
    font-size: 0.9rem;
}

.showcase-list li i {
    color: #22c55e;
    font-size: 1rem;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #86efac;
    border-radius: 50%;
    flex-shrink: 0;
}

.showcase-image {
    width: 100%;
    height: 280px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4.5rem;
    color: #fff;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.showcase-image:hover {
    transform: scale(1.02);
}

.showcase-image.blue {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
}

.showcase-image.purple {
    background: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
}

.showcase-image.green {
    background: linear-gradient(135deg, #22c55e 0%, #4ade80 100%);
}

/* ============================================
   多端同步核心模块 - 统一布局方案
   ============================================ */

.core-modules-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 50%, #f0f9ff 100%);
    position: relative;
    overflow: hidden;
}

.core-modules-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.15), transparent);
}

/* Platform Indicator Tabs */
.platform-indicator {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 40px 0 48px;
}

.platform-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #ffffff;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    color: #64748b;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.platform-tab:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
    transform: translateY(-2px);
}

.platform-tab.active {
    background: #ffffff;
    color: #2563eb;
    border-color: #2563eb;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.15);
}

.platform-tab i {
    font-size: 1.1rem;
}

/* Core Modules Grid - 2x2 Layout */
.core-modules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

/* Core Module Card */
.core-module-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 32px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.core-module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #4f46e5, #7c3aed);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.core-module-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1),
                0 8px 16px rgba(0, 0, 0, 0.06);
    border-color: rgba(37, 99, 235, 0.2);
}

.core-module-card:hover::before {
    opacity: 1;
}

/* Module Header */
.module-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.module-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.4rem;
    position: relative;
}

.module-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: inherit;
    filter: blur(12px);
    opacity: 0.5;
    z-index: -1;
}

.cert-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.practice-icon {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.exam-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.search-icon {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-icon i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.module-badge {
    padding: 6px 14px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    color: #2563eb;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 20px;
    border: 1px solid rgba(37, 99, 235, 0.15);
}

/* Module Content */
.module-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.module-desc {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 20px;
}

.module-features {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.module-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: #475569;
    padding: 8px 0;
    border-bottom: 1px dashed rgba(226, 232, 240, 0.6);
}

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

.module-features li i {
    color: #10b981;
    font-size: 0.9rem;
}

/* Platform Tags */
.module-platform-tags {
    display: flex;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid rgba(226, 232, 240, 0.6);
}

.module-platform-tags span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.tag-app {
    background: #f1f5f9;
    color: #64748b;
}

.tag-miniapp {
    background: #f0fdf4;
    color: #16a34a;
}

.tag-web {
    background: #eff6ff;
    color: #2563eb;
}

.module-platform-tags span:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Sync Features Row */
.sync-features-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 32px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.sync-feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.sync-feature-item:hover {
    background: rgba(37, 99, 235, 0.04);
}

.sync-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: #2563eb;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.sync-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 4px;
}

.sync-info p {
    font-size: 0.85rem;
    color: #64748b;
    margin: 0;
}

/* Testimonials Section - 与核心模块一致的布局 */
.testimonials-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f8fafc 100%);
    position: relative;
}

.testimonials-section .section-header {
    margin-bottom: 48px;
}

.testimonials-section .section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(79, 70, 229, 0.1));
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #2563eb;
    margin-bottom: 16px;
}

.testimonials-section .section-badge i {
    font-size: 0.9rem;
}

.testimonials-section .section-title {
    font-size: 2rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 12px;
}

.testimonials-section .section-desc {
    font-size: 1.1rem;
    color: #334155;
}

/* Multi-device Section - 更现代 */
.multi-device-section {
    padding: 56px 0;
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
    border-top: 1px solid #f1f5f9;
    border-bottom: 1px solid #f1f5f9;
}

.device-showcase {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 36px;
}

.device-item {
    text-align: center;
    padding: 28px 24px;
    background: #ffffff;
    border-radius: 18px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

.device-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
}

.device-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    margin: 0 auto 18px;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.25);
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.device-item:hover .device-icon {
    transform: scale(1.1) rotate(-5deg);
}

.device-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.device-item p {
    font-size: 0.85rem;
    color: #64748b;
}

/* Platform Stats Section - 更精致 */
.platform-stats-section {
    padding: 56px 0;
    background: #ffffff;
}

.platform-header {
    text-align: center;
    margin-bottom: 36px;
}

.platform-header .section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.01em;
}

.platform-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.platform-stat-item {
    text-align: center;
    padding: 28px;
    background: #f8fafc;
    border-radius: 18px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.platform-stat-item:hover {
    background: #eff6ff;
    transform: translateY(-4px);
    border-color: #3b82f6;
}

.platform-stat-item .stat-number {
    font-size: 2.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.platform-stat-item .stat-label {
    font-size: 0.95rem;
    color: #64748b;
    font-weight: 500;
}

/* Client Logos Section - 更简洁 */
.client-logos-section {
    padding: 40px 0 56px;
    background: #ffffff;
    border-top: 1px solid #f1f5f9;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #94a3b8;
    font-weight: 400;
}

.logos-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 16px;
    margin-top: 28px;
}

.logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 18px 10px;
    background: #f8fafc;
    border-radius: 14px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.logo-item:hover {
    background: #eff6ff;
    transform: translateY(-3px);
    border-color: #3b82f6;
}

.logo-item i {
    font-size: 1.8rem;
    color: #94a3b8;
    transition: color 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-item:hover i {
    color: #2563eb;
}

.logo-item span {
    font-size: 0.75rem;
    color: #64748b;
    text-align: center;
    font-weight: 500;
}

/* Bottom CTA Section - 更现代 */
.bottom-cta-section {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    padding: 56px 0;
    position: relative;
    overflow: hidden;
}

.bottom-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

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

.bottom-cta-title {
    font-size: 1.7rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}

.bottom-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.btn-white {
    background: #fff;
    color: #2563eb;
    padding: 14px 32px;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 14px rgba(0,0,0,0.15);
    border: 2px solid #fff;
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.btn-outline-white {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.5);
    padding: 14px 32px;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline-white:hover {
    background: #fff;
    color: #2563eb;
    border-color: #fff;
}

/* ============================================
   响应式调整
   ============================================ */

@media (max-width: 1200px) {
    .core-features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .logos-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .hot-banks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ai-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-content {
        grid-template-columns: 1fr;
    }
    
    .stats-visual {
        order: -1;
        height: 250px;
    }
    
    .showcase-row,
    .showcase-row.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    .showcase-visual {
        order: -1;
    }
    
    .device-showcase {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .platform-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .core-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Core Modules Section Responsive */
    .core-modules-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .platform-indicator {
        gap: 6px;
        margin: 32px 0 40px;
    }

    .platform-tab {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .platform-tab span {
        display: none;
    }

    .sync-features-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 24px;
    }
}

@media (max-width: 768px) {
    .banner-content {
        flex-direction: column;
        text-align: center;
        padding: 10px 40px;
    }
    
    .doc-content {
        flex-direction: column;
        text-align: center;
    }
    
    .doc-right {
        margin-top: 20px;
    }
    
    .hot-banks-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-features-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-circle.large {
        width: 140px;
        height: 140px;
    }
    
    .stat-circle.medium {
        width: 110px;
        height: 110px;
        left: 100px;
    }
    
    .stat-circle.small {
        width: 90px;
        height: 90px;
        left: 130px;
    }
    
    .device-showcase {
        grid-template-columns: 1fr;
    }
    
    .platform-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .core-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .logos-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Core Modules Section Responsive */
    .core-modules-section {
        padding: 60px 0;
    }

    .core-module-card {
        padding: 24px;
    }

    .module-header {
        margin-bottom: 16px;
    }

    .module-icon {
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
    }

    .module-title {
        font-size: 1.2rem;
    }

    .module-desc {
        font-size: 0.9rem;
    }

    .module-features li {
        font-size: 0.85rem;
        padding: 6px 0;
    }

    .sync-features-row {
        grid-template-columns: 1fr;
        padding: 20px;
    }

    .sync-feature-item {
        padding: 12px;
    }

    .bottom-cta-title {
        font-size: 1.3rem;
    }
}

/* Back to Top - 更现代 */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 999;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
    border: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-6px) scale(1.08);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.45);
}

/* Animations - 更流畅 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 入场动画 */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-slide-up {
    animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-scale-in {
    animation: scaleIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Scrollbar - 更精致 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
    transition: background 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

::-webkit-scrollbar-thumb:hover {
    background: #3b82f6;
}

::-webkit-scrollbar-corner {
    background: transparent;
}

/* Toast Notifications - 更精致 */
.custom-toast {
    position: fixed;
    top: 90px;
    right: 24px;
    padding: 16px 24px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 9999;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid #e2e8f0;
    font-size: 0.9rem;
    font-weight: 500;
}

.custom-toast.show {
    opacity: 1;
    transform: translateX(0);
}

.custom-toast.success {
    border-left: 4px solid #22c55e;
}

.custom-toast.error {
    border-left: 4px solid #ef4444;
}

.custom-toast.info {
    border-left: 4px solid #2563eb;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 3.2rem;
    }

    .category-list {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

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

    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }

    .hero-visual {
        display: none;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .banner-content {
        flex-direction: column;
        text-align: center;
        gap: 25px;
    }

    .banner-text {
        text-align: center;
    }

    .banner-icon {
        width: 100px;
        height: 100px;
        font-size: 3rem;
    }

    .banner-text h3 {
        font-size: 1.8rem;
    }

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .cta-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 20px;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .hero {
        padding: 120px 20px 60px;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-desc {
        font-size: 1.1rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 15px;
    }

    .stat-item {
        flex: 1 1 calc(50% - 15px);
        min-width: 140px;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .stat-value {
        font-size: 2.2rem;
    }

    .cta-container {
        padding: 50px 30px;
    }

    .cta-title {
        font-size: 1.8rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .search-container {
        flex-direction: column;
        border-radius: 14px;
        padding: 15px;
    }

    .search-icon {
        padding-left: 0;
    }

    .search-input {
        width: 100%;
        text-align: center;
    }

    .search-btn {
        width: 100%;
    }

    .banner-slide {
        padding: 40px 30px;
    }

    .banner-nav {
        width: 40px;
        height: 40px;
    }

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

    .footer-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-social {
        justify-content: center;
    }

    .stats-showcase-section {
        padding: 60px 0;
    }

    .stats-content {
        gap: 40px;
    }

    .stats-title {
        font-size: 1.75rem;
    }

    .stats-desc {
        font-size: 1rem;
        margin-bottom: 24px;
    }

    .stats-tags {
        gap: 8px;
        margin-bottom: 28px;
    }

    .stat-tag {
        padding: 8px 14px;
        font-size: 0.82rem;
    }

    .stats-visual {
        height: 240px;
    }

    .stat-circle.large {
        width: 140px;
        height: 135px;
        left: 10px;
    }

    .stat-circle.medium {
        width: 105px;
        height: 105px;
        left: 110px;
        top: 10px;
    }

    .stat-circle.small {
        width: 90px;
        height: 90px;
        left: 135px;
        bottom: 15px;
    }

    .stat-circle .number {
        font-size: 1.2rem;
    }

    .stat-circle .label {
        font-size: 0.68rem;
    }

    .stat-circle.medium .number {
        font-size: 1.05rem;
    }

    .stat-circle.small .number {
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    .navbar-container {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .btn-large {
        padding: 14px 28px;
        font-size: 1rem;
    }

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

    .category-item {
        padding: 15px 20px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .testimonial-card {
        padding: 30px 20px;
    }

    .stat-box {
        padding: 30px 15px;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .custom-toast {
        right: 15px;
        left: 15px;
        top: auto;
        bottom: 100px;
    }

    .stats-showcase-section {
        padding: 48px 0;
    }

    .stats-content {
        gap: 32px;
    }

    .stats-left {
        padding-right: 0;
        text-align: center;
    }

    .stats-title {
        font-size: 1.5rem;
    }

    .stats-desc {
        font-size: 0.95rem;
    }

    .stats-tags {
        justify-content: center;
        gap: 10px;
        margin-bottom: 28px;
    }

    .stat-tag {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .btn-large {
        padding: 14px 32px;
        font-size: 0.95rem;
    }

    .stats-visual {
        height: 200px;
    }

    .stat-circle.large {
        width: 120px;
        height: 115px;
        left: 5px;
    }

    .stat-circle.medium {
        width: 90px;
        height: 90px;
        left: 90px;
        top: 5px;
    }

    .stat-circle.small {
        width: 75px;
        height: 75px;
        left: 115px;
        bottom: 10px;
    }

    .stat-circle .number {
        font-size: 1rem;
    }

    .stat-circle .label {
        font-size: 0.62rem;
    }

    .stat-circle.medium .number {
        font-size: 0.9rem;
    }

    .stat-circle.small .number {
        font-size: 0.82rem;
    }

    /* Core Modules Section Responsive */
    .core-modules-section {
        padding: 48px 0;
    }

    .core-modules-grid {
        gap: 16px;
    }

    .core-module-card {
        padding: 20px;
    }

    .module-header {
        margin-bottom: 12px;
    }

    .module-icon {
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
        border-radius: 12px;
    }

    .module-badge {
        padding: 4px 10px;
        font-size: 0.7rem;
    }

    .module-title {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }

    .module-desc {
        font-size: 0.85rem;
        margin-bottom: 16px;
    }

    .module-features {
        margin-bottom: 16px;
    }

    .module-features li {
        font-size: 0.8rem;
        padding: 5px 0;
    }

    .module-platform-tags span {
        width: 28px;
        height: 28px;
        font-size: 0.75rem;
    }

    .sync-features-row {
        padding: 16px;
        gap: 12px;
    }

    .sync-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .sync-info h4 {
        font-size: 0.9rem;
    }

    .sync-info p {
        font-size: 0.78rem;
    }
}

/* ============================================
   精致头部和导航设计 - 单行导航 v2.0
   ============================================ */

.main-header {
    background: #ffffff;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05),
                0 2px 8px rgba(0, 0, 0, 0.04);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 60px;
}

.header-spacer {
    height: 60px;
}

.header-top {
    display: none;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 24px;
}

/* Logo - 更精致 */
.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-logo:hover {
    transform: scale(1.02);
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.4rem;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    transition: box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-logo:hover .logo-icon {
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 1.35rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.logo-domain {
    font-size: 0.7rem;
    color: #94a3b8;
    letter-spacing: 0.5px;
    font-weight: 500;
}

/* Header Search - 图片样式 */
.header-search {
    flex: 1;
    max-width: 420px;
    display: flex;
    justify-content: center;
}

.search-wrapper {
    display: flex;
    align-items: center;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    overflow: hidden;
    background: #ffffff;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    height: 38px;
    width: 100%;
}

.search-wrapper:focus-within {
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* 搜索类型下拉 */
.search-type-dropdown {
    position: relative;
    flex-shrink: 0;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 12px;
    height: 38px;
    background: transparent;
    border: none;
    font-size: 0.8125rem;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.dropdown-toggle:hover {
    color: #374151;
    background: #f9fafb;
}

.dropdown-toggle i {
    font-size: 0.625rem;
    transition: transform 0.2s;
}

.dropdown-toggle.active i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    list-style: none;
    padding: 4px 0;
    min-width: 80px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: all 0.2s;
    z-index: 1001;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 8px 12px;
    font-size: 0.8125rem;
    color: #4b5563;
    cursor: pointer;
    transition: all 0.15s;
}

.dropdown-menu li:hover {
    background: #f3f4f6;
    color: #2563eb;
}

.dropdown-menu li.active {
    color: #2563eb;
    font-weight: 500;
    background: #eff6ff;
}

/* 搜索分隔线 */
.search-divider {
    width: 1px;
    height: 20px;
    background: #e5e7eb;
    flex-shrink: 0;
}

/* 搜索输入框 */
.search-input {
    flex: 1;
    border: none;
    padding: 0 12px;
    font-size: 0.8125rem;
    outline: none;
    background: transparent;
    color: #1f2937;
    height: 100%;
    min-width: 0;
}

.search-input::placeholder {
    color: #9ca3af;
}

/* 搜索按钮 */
.search-btn {
    background: transparent;
    color: #6b7280;
    border: none;
    padding: 0 12px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    color: #2563eb;
    background: #f3f4f6;
}

/* Header Actions - 图片样式 */
.header-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
    align-items: center;
}

/* Header Actions 中的按钮样式 - 与 header.html 保持一致 */
.header-actions .btn-login,
.header-actions .btn-register {
    padding: 7px 18px;
    border-radius: 4px;
    font-size: 0.8125rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.header-actions .btn-login {
    color: #2563eb;
    border: 1px solid #2563eb;
    background: transparent;
}

.header-actions .btn-login:hover,
.header-actions .btn-login.active {
    color: #1d4ed8;
    border-color: #1d4ed8;
    background: rgba(37, 99, 235, 0.05);
}

.header-actions .btn-register {
    background: #2563eb;
    color: #fff;
    border: 1px solid #2563eb;
}

.header-actions .btn-register:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
}

/* Header Navigation - 单行导航 */
.header-nav {
    background: transparent;
    padding: 0;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}

.nav-menu li a {
    display: block;
    padding: 8px 14px;
    color: #4b5563;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border-radius: 6px;
    white-space: nowrap;
}

.nav-menu li a:hover {
    color: #2563eb;
    background: rgba(37, 99, 235, 0.06);
}

.nav-menu li a.active {
    color: #2563eb;
    font-weight: 600;
    background: rgba(37, 99, 235, 0.08);
}

/* VIP链接特殊样式 */
.nav-menu li a.vip-link {
    color: #f59e0b;
}

.nav-menu li a.vip-link:hover {
    color: #d97706;
    background: rgba(245, 158, 11, 0.08);
}

/* ============================================
   单行导航响应式设计
   ============================================ */

@media (max-width: 1200px) {
    .header-container {
        padding: 0 20px;
    }
    
    .nav-menu li a {
        padding: 8px 10px;
        font-size: 0.8125rem;
    }
    
    .header-search {
        max-width: 320px;
    }
}

@media (max-width: 992px) {
    .header-nav {
        display: none;
    }
    
    .header-search {
        max-width: 400px;
    }
}

@media (max-width: 640px) {
    .header-container {
        padding: 0 16px;
        gap: 12px;
    }
    
    .header-search {
        max-width: none;
        flex: 1;
    }
    
    .dropdown-toggle span {
        display: none;
    }
    
    .header-actions .btn-login,
    .header-actions .btn-register {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
}

/* 保留搜索框现代化设计 - 用于页面内搜索 */
.page-search-box {
    display: flex;
    align-items: center;
    border: 1.5px solid #e2e8f0;
    border-radius: 9999px;
    overflow: hidden;
    background: #ffffff;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    height: 44px;
}

.page-search-box:focus-within {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* 搜索标签优化 - 保留 */
.search-tab {
    font-size: 0.82rem;
    color: #64748b;
    cursor: pointer;
    position: relative;
    transition: all 0.25s ease;
    font-weight: 500;
    padding: 3px 0;
    letter-spacing: 0.01em;
}

.search-tab:hover {
    color: #475569;
}

.search-tab.active {
    color: #2563eb;
    font-weight: 600;
}

.search-tab.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #2563eb, #4f46e5);
    border-radius: 2px;
    animation: tabSlideIn 0.3s ease;
}

@keyframes tabSlideIn {
    from {
        width: 0;
        opacity: 0;
    }
    to {
        width: 100%;
        opacity: 1;
    }
}



/* 导航菜单精致化 */
.header-nav {
    background: linear-gradient(180deg, #fafbfc 0%, #ffffff 100%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.nav-menu li a {
    display: block;
    padding: 15px 20px;
    color: #475569;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    letter-spacing: 0.01em;
}

.nav-menu li a::before {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 20px;
    right: 20px;
    height: 0;
    background: linear-gradient(90deg, #2563eb, #4f46e5);
    border-radius: 2px;
    transition: height 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.nav-menu li a:hover {
    color: #2563eb;
    background: linear-gradient(180deg, transparent 0%, rgba(37, 99, 235, 0.02) 100%);
}

.nav-menu li a:hover::before {
    height: 2px;
    opacity: 1;
}

.nav-menu li a.active {
    color: #2563eb;
    font-weight: 600;
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.04) 0%, transparent 100%);
}

.nav-menu li a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20px;
    right: 20px;
    height: 3px;
    background: linear-gradient(90deg, #2563eb 0%, #4f46e5 100%);
    border-radius: 3px 3px 0 0;
    box-shadow: 0 -2px 8px rgba(37, 99, 235, 0.3);
}

/* ============================================
   精致内容区域设计
   ============================================ */

.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 60px 0;
}

/* ============================================
   分类导航与轮播模块 - 参考图设计
   ============================================ */

.category-carousel-section {
    padding: 5px 0;
}

.category-carousel-wrapper {
    display: flex;
    gap: 0;
    background: #ffffff;
    border-radius: 18px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0,0,0,0.02);
    border: 1px solid #e2e8f0;
    overflow: hidden;
    height: auto;
    min-height: 280px;
    position: relative;
}

.category-carousel-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    z-index: 10;
    pointer-events: none;
}

/* 左侧分类导航 - 精致化设计 */
.category-nav {
    width: 220px;
    background: #ffffff;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    padding: 12px 0;
    position: relative;
}

.category-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
}

.category-nav-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px 12px;
    margin-bottom: 8px;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.9rem;
    font-weight: 700;
    color: #0f172a;
    background: transparent;
}

.category-nav-header i {
    color: #2563eb;
    font-size: 1.1rem;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #dbeafe;
    border-radius: 6px;
}

.category-nav-list {
    list-style: none;
    flex: 1;
    padding: 0 8px;
}

.category-nav-item {
    position: relative;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    margin: 0 8px 6px;
    border: 1px solid transparent;
    background: transparent;
}

.category-nav-item:hover {
    background: rgba(37, 99, 235, 0.04);
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateX(2px);
}

.category-nav-item.active {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.3);
}

.category-nav-item.active .nav-item-title {
    color: #2563eb;
    font-weight: 700;
}

.category-nav-item.active::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    border-radius: 0 2px 2px 0;
}

.nav-item-main {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 2;
}

.nav-item-main > i:first-child {
    width: 18px;
    font-size: 0.9rem;
    color: #2563eb;
    text-align: center;
}

.nav-item-title {
    flex: 1;
    font-size: 0.85rem;
    font-weight: 600;
    color: #0f172a;
}

.nav-arrow {
    font-size: 0.7rem;
    color: #94a3b8;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-nav-item:hover .nav-arrow,
.category-nav-item.active .nav-arrow {
    color: #2563eb;
    transform: translateX(3px);
}

.nav-item-sub {
    display: none;
}

/* 左侧子分类默认始终显示，不需要hover效果 */

/* 子菜单项样式 - 网格布局 */
.nav-item-sub span {
    font-size: 0.7rem;
    color: #94a3b8;
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 3px 5px;
    background: transparent;
    border-radius: 6px;
    text-align: left;
    border: none;
    line-height: 1.2;
    white-space: nowrap;
}

.nav-item-sub span:hover {
    color: #2563eb;
    background: transparent;
}

.view-all-categories {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 12px 12px 0;
    padding: 12px;
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    color: #334155;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.view-all-categories:hover {
    border-color: #2563eb;
    color: #2563eb;
    background: linear-gradient(135deg, #eff6ff, #ffffff);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.view-all-categories i {
    font-size: 0.9rem;
    transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.view-all-categories:hover i {
    transform: translateX(2px);
}

/* 右侧内容区 */
.category-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0;
    position: relative;
    overflow: hidden;
    min-height: 400px;
}

/* 轮播图区域 - 默认填满右侧 */
.content-carousel-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 1;
}

.content-carousel-wrapper.hidden {
    opacity: 0;
    visibility: hidden;
    z-index: 0;
}

.content-carousel {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 0 18px 18px 0;
    overflow: hidden;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.05);
}

.content-carousel .carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-carousel .carousel-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
}

.content-carousel .carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.content-carousel .slide-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 50px 40px 40px;
    background: linear-gradient(transparent 0%, rgba(0,0,0,0.4) 30%, rgba(0,0,0,0.8) 100%);
    color: #fff;
}

.content-carousel .slide-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    text-transform: uppercase;
}

.content-carousel .slide-overlay h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.4);
    letter-spacing: -0.02em;
}

.content-carousel .slide-overlay p {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 20px;
    max-width: 500px;
    line-height: 1.5;
}

.content-carousel .slide-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: #fff;
    color: #0f172a;
    text-decoration: none;
    border-radius: 9999px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 18px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}

.content-carousel .slide-btn::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 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-carousel .slide-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    color: #fff;
}

.content-carousel .slide-btn:hover::before {
    left: 100%;
}

/* 轮播控制按钮 */
.content-carousel .carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.95);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0f172a;
    font-size: 1rem;
    opacity: 0;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 10;
}

.content-carousel:hover .carousel-btn {
    opacity: 1;
}

.content-carousel .carousel-btn:hover {
    background: #fff;
    transform: translateY(-50%) scale(1.1);
}

.content-carousel .carousel-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.content-carousel .carousel-prev {
    left: 20px;
}

.content-carousel .carousel-next {
    right: 20px;
}

/* 轮播指示器 - 精致化 */
.content-carousel .carousel-indicators {
    position: absolute;
    bottom: 30px;
    right: 40px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.content-carousel .indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.35);
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255,255,255,0.2);
}

.content-carousel .indicator.active {
    background: #fff;
    width: 32px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.content-carousel .indicator:hover {
    background: rgba(255,255,255,0.7);
    transform: scale(1.2);
}

/* 子分类面板 - 悬停时显示 - 精致化 */
.category-panels {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    z-index: 0;
    background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
    padding: 20px 24px;
    overflow-y: auto;
}

.category-panels.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
    animation: fadeInPanel 0.3s ease;
}

@keyframes fadeInPanel {
    from { 
        opacity: 0; 
        transform: translateX(10px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

.category-panels.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.category-panel {
    display: none;
    width: 100%;
    height: 100%;
}

.category-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(10px); }
    to { opacity: 1; transform: translateX(0); }
}

.panel-section {
    margin-bottom: 0;
}

.panel-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 16px;
    padding-left: 12px;
    border-left: 3px solid #2563eb;
}

/* 面板分组 - 匹配截图布局 */
.panel-group {
    margin-bottom: 20px;
}

.panel-group:last-child {
    margin-bottom: 0;
}

/* 分组标题 - 粗体深色，独占一行 */
.group-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 10px;
    padding-left: 0;
    line-height: 1.4;
}

/* 分组标签容器 */
.group-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin-left: -6px;
    margin-right: -6px;
}

/* 分组标签样式 - 精致化 */
.group-tag {
    display: inline-block;
    padding: 5px 10px;
    color: #334155;
    font-size: 0.82rem;
    text-decoration: none;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    line-height: 1.5;
    border-radius: 6px;
    position: relative;
}

.group-tag:hover {
    color: #2563eb;
    background: #eff6ff;
}

/* 分隔符样式 - 更精致 */
.group-tag + .group-tag::before {
    content: '';
    display: inline-block;
    width: 1px;
    height: 10px;
    background: linear-gradient(180deg, transparent, #cbd5e1, transparent);
    margin-right: 14px;
    vertical-align: middle;
    opacity: 0.6;
}

.group-tag:hover + .group-tag::before,
.group-tag + .group-tag:hover::before {
    opacity: 0.3;
}

/* ===== 优化后的面板样式 ===== */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f1f5f9;
}

.panel-title {
    font-size: 1rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.panel-title i {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: #fff;
    border-radius: 6px;
    font-size: 0.85rem;
}

.panel-more {
    font-size: 0.8rem;
    color: #64748b;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.panel-more:hover {
    color: #2563eb;
    gap: 6px;
}

.panel-more i {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
}

.panel-more:hover i {
    transform: translateX(3px);
}

.panel-body {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px 12px;
}

.panel-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    color: #475569;
    font-size: 0.8rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 6px;
    background: #fff;
    border: 1px solid transparent;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.panel-tag:hover {
    color: #2563eb;
    background: #f0f7ff;
    border-color: #bfdbfe;
}

.tag-dot {
    width: 4px;
    height: 4px;
    background: #cbd5e1;
    border-radius: 50%;
    flex-shrink: 0;
    transition: background 0.2s ease;
}

.panel-tag:hover .tag-dot {
    background: #2563eb;
}

.view-more-tags {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #2563eb;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    margin-top: 12px;
    transition: gap 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.view-more-tags:hover {
    gap: 8px;
}

/* 轮播图区域 */
.category-carousel {
    display: none;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 14px;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
    min-width: 100%;
    height: 100%;
}

.slide-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 32px;
    color: #fff;
}

.slide-content.blue {
    background: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
}

.slide-content.purple {
    background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
}

.slide-content.green {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
}

.slide-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255,255,255,0.2);
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.slide-text h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.slide-text p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 12px;
}

.slide-btn {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255,255,255,0.95);
    color: #0f172a;
    text-decoration: none;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-btn:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.slide-icon {
    font-size: 3.5rem;
    opacity: 0.3;
}

/* 轮播控制 */
.carousel-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.dot.active {
    background: #fff;
    width: 24px;
    border-radius: 4px;
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.15);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(255,255,255,0.3);
}

.carousel-prev {
    left: 12px;
}

.carousel-next {
    right: 12px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .category-carousel-wrapper {
        flex-direction: column;
        height: auto;
        min-height: 600px;
    }
    
    .category-nav {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
    }
    
    .category-nav-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        padding: 0 16px;
    }
    
    .category-nav-item {
        flex: 1;
        min-width: 150px;
        margin-bottom: 0;
    }
    
    .nav-item-sub {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        padding-right: 8px;
        gap: 6px;
    }
    
    .category-content {
        padding: 0;
        min-height: 350px;
    }
    
    .panel-tags {
        gap: 8px;
    }
    
    .panel-tag {
        padding: 6px 12px;
        font-size: 0.78rem;
    }
    
    .category-carousel {
        height: 120px;
    }
    
    .slide-icon {
        display: none;
    }
    
    .content-carousel {
        border-radius: 0 0 18px 18px;
    }
    
    .content-carousel .slide-overlay {
        padding: 30px 20px 20px;
    }
    
    .content-carousel .slide-overlay h3 {
        font-size: 1.2rem;
    }
    
    .content-carousel .slide-overlay p {
        font-size: 0.85rem;
        margin-bottom: 12px;
    }
    
    .content-carousel .carousel-btn {
        width: 36px;
        height: 36px;
        font-size: 0.85rem;
        opacity: 1;
    }
    
    .content-carousel .carousel-indicators {
        right: 20px;
        bottom: 15px;
    }
    
    .content-carousel .slide-btn {
        padding: 8px 18px;
        font-size: 0.8rem;
    }
    
    .category-panels {
        padding: 14px 16px;
    }
    
    .group-title {
        font-size: 0.9rem;
        margin-bottom: 8px;
    }
    
    .group-tag {
        font-size: 0.78rem;
        padding: 3px 6px;
    }

@media (max-width: 992px) {
    .panel-body {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .category-nav-list {
        flex-direction: column;
    }
    
    .category-nav-item {
        min-width: auto;
    }
    
    .panel-body {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px 8px;
    }
    
    .panel-tag {
        padding: 6px 8px;
        font-size: 0.75rem;
    }
    
    .panel-title {
        font-size: 0.9rem;
    }
    
    .nav-item-sub {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        padding-right: 8px;
        gap: 6px;
    }
    
    .panel-tags {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .panel-tag {
        padding: 8px 10px;
        font-size: 0.8rem;
        min-height: 40px;
    }
    
    .category-carousel {
        height: 140px;
    }
    
    .slide-text h3 {
        font-size: 1.2rem;
    }
}

/* Category Section */
.category-section {
    background: linear-gradient(135deg, #e6f7ff 0%, #f0f5ff 100%);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
}

.category-container {
    display: flex;
    gap: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    overflow: hidden;
}

/* Category Sidebar */
.category-sidebar {
    width: 300px;
    background: #fafafa;
    padding: 12px;
    border-right: 1px solid #f0f0f0;
    display: flex;
    flex-direction: column;
}

.category-menu {
    flex: 1;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 4px;
}

.menu-item:hover,
.menu-item.active {
    background: #e6f7ff;
    color: #1890ff;
}

.menu-item i:first-child {
    width: 24px;
    font-size: 1.1rem;
    color: #666;
    transition: color 0.3s;
}

.menu-item:hover i:first-child,
.menu-item.active i:first-child {
    color: #1890ff;
}

.menu-item span {
    flex: 1;
    font-size: 0.95rem;
    font-weight: 500;
}

.menu-item .arrow {
    font-size: 0.75rem;
    color: #ccc;
    transition: all 0.3s;
}

.menu-item:hover .arrow,
.menu-item.active .arrow {
    color: #1890ff;
    transform: translateX(3px);
}

.view-all-categories {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    margin-top: 10px;
    background: #fff;
    border: 1px solid #d9d9d9;
    border-radius: 8px;
    color: #666;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s;
}

.view-all-categories:hover {
    border-color: #1890ff;
    color: #1890ff;
}

/* Category Detail Panel */
.category-detail {
    flex: 1;
    padding: 20px 25px;
    min-height: 400px;
}

.detail-panel {
    display: none;
}

.detail-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(10px); }
    to { opacity: 1; transform: translateX(0); }
}

.detail-section {
    margin-bottom: 25px;
}

.detail-section .section-title {
    font-size: 1rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
    padding-left: 12px;
    border-left: 4px solid #1890ff;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    display: inline-block;
    padding: 8px 16px;
    background: #f5f5f5;
    border-radius: 20px;
    color: #666;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.3s;
}

.tag-item:hover {
    background: #e6f7ff;
    color: #1890ff;
}

.view-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: #1890ff;
    font-size: 0.9rem;
    text-decoration: none;
    font-weight: 500;
    margin-top: 10px;
    transition: gap 0.3s;
}

.view-more:hover {
    gap: 10px;
}

/* ============================================
   Feature Modules
   ============================================ */

.feature-modules {
    margin-bottom: 40px;
}

.modules-container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    background: #fff;
    padding: 30px 40px;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.module-card {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    padding: 15px;
    border-radius: 12px;
    transition: all 0.3s;
}

.module-card:hover {
    background: #fafafa;
    transform: translateY(-3px);
}

.module-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    flex-shrink: 0;
}

.module-icon.blue {
    background: linear-gradient(135deg, #1890ff, #36cfc9);
}

.module-icon.cyan {
    background: linear-gradient(135deg, #36cfc9, #40a9ff);
}

.module-icon.orange {
    background: linear-gradient(135deg, #fa8c16, #ffa940);
}

.module-icon.purple {
    background: linear-gradient(135deg, #722ed1, #b37feb);
}

.module-icon.green {
    background: linear-gradient(135deg, #52c41a, #95de64);
}

.module-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 4px;
}

.module-info p {
    font-size: 0.8rem;
    color: #999;
}

/* ============================================
   二维码弹窗样式
   ============================================ */

.qr-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}

.qr-modal.active {
    display: flex;
}

.qr-modal-content {
    background: #ffffff;
    border-radius: 16px;
    padding: 28px 32px;
    width: 320px;
    text-align: center;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    animation: qrModalIn 0.3s ease;
}

@keyframes qrModalIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.qr-close {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 28px;
    color: #94a3b8;
    cursor: pointer;
    transition: color 0.2s ease;
    line-height: 1;
}

.qr-close:hover {
    color: #64748b;
}

.qr-header {
    margin-bottom: 20px;
}

.qr-header i {
    font-size: 48px;
    color: #07c160;
    margin-bottom: 12px;
    display: block;
}

.qr-header h4 {
    font-size: 1.2rem;
    color: #1e293b;
    font-weight: 600;
    margin: 0;
}

.qr-code-box {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}

.qr-placeholder {
    width: 160px;
    height: 160px;
    margin: 0 auto;
    background: #ffffff;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 2px dashed #cbd5e1;
}

.qr-placeholder i {
    font-size: 64px;
    color: #94a3b8;
}

.qr-placeholder span {
    font-size: 0.85rem;
    color: #64748b;
}

.qr-tip {
    font-size: 0.9rem;
    color: #475569;
    margin: 0 0 8px 0;
}

.qr-id {
    font-size: 0.85rem;
    color: #2563eb;
    font-weight: 600;
    margin: 0;
    padding: 6px 12px;
    background: rgba(37, 99, 235, 0.08);
    border-radius: 20px;
    display: inline-block;
}

/* ============================================
   精致浮动侧边栏 - 现代化设计
   ============================================ */

.floating-sidebar {
    position: fixed;
    right: 40px;
    top: 50%;
    transform: translateY(-50%);
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.05);
    z-index: 999;
    border: 1px solid rgba(226, 232, 240, 0.8);
    display: flex;
    flex-direction: column;
    visibility: visible;
    opacity: 1;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

.float-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 68px;
    height: 72px;
    text-decoration: none;
    color: #64748b;
    font-size: 0.68rem;
    gap: 6px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    font-weight: 500;
    background: transparent;
}

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

.float-item:hover {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.06) 0%, rgba(79, 70, 229, 0.06) 100%);
    color: #2563eb;
    transform: scale(1.05);
}

.float-item i {
    font-size: 1.35rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.float-item:hover i {
    transform: translateY(-2px) scale(1.1);
    filter: drop-shadow(0 4px 8px rgba(37, 99, 235, 0.3));
}

.float-item span {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
}

.float-item:hover span {
    transform: translateY(-1px);
}

/* 特殊样式 - 微信 */
.float-item:nth-child(2):hover {
    background: linear-gradient(135deg, rgba(7, 193, 96, 0.08) 0%, rgba(6, 147, 79, 0.08) 100%);
    color: #07c160;
}

.float-item:nth-child(2):hover i {
    filter: drop-shadow(0 4px 8px rgba(7, 193, 96, 0.4));
}

/* TOP按钮特殊样式 */
.float-item-top {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    opacity: 0.5;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.float-item-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.float-item-top:hover {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    color: #ffffff;
    transform: scale(1.08);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
}

.float-item-top:hover i {
    transform: translateY(-3px);
    filter: none;
}

.float-item-top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, rgba(37, 99, 235, 0.3) 50%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.float-item-top:hover::before {
    opacity: 1;
}

/* 隐藏原始导航栏 */
.navbar {
    display: none;
}

/* ============================================
   精致响应式设计
   ============================================ */

@media (max-width: 1200px) {
    .core-features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .logos-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .modules-container {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .module-card {
        flex: 0 0 calc(33.333% - 20px);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

@media (max-width: 992px) {
    .hot-banks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ai-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-content {
        grid-template-columns: 1fr;
    }
    
    .stats-visual {
        order: -1;
        height: 250px;
    }
    
    .showcase-row,
    .showcase-row.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    .showcase-visual {
        order: -1;
    }
    
    .device-showcase {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .platform-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .core-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .header-search {
        margin: 0 24px;
    }
    
    .nav-menu li a {
        padding: 12px 14px;
        font-size: 0.88rem;
    }
    
    .category-container {
        flex-direction: column;
    }
    
    .category-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
    }
    
    .category-menu {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .menu-item {
        flex: 1;
        min-width: 140px;
        margin-bottom: 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .banner-content {
        flex-direction: column;
        text-align: center;
        padding: 12px 40px;
        gap: 8px;
    }
    
    .banner-text {
        font-size: 0.85rem;
    }
    
    .header-container {
        flex-wrap: wrap;
    }
    
    .header-search {
        order: 3;
        max-width: 100%;
        margin: 12px 0 0 0;
    }
    
    .search-box {
        height: 42px;
    }
    
    .search-btn {
        padding: 0 16px;
        height: 34px;
        font-size: 0.85rem;
    }
    
    .header-nav {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-menu {
        flex-wrap: nowrap;
        min-width: max-content;
    }
    
    .doc-content {
        flex-direction: column;
        text-align: center;
        padding: 28px 24px;
    }
    
    .doc-right {
        margin-top: 20px;
    }
    
    .hot-banks-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-features-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-circle.large {
        width: 140px;
        height: 140px;
    }
    
    .stat-circle.medium {
        width: 110px;
        height: 110px;
        left: 100px;
    }
    
    .stat-circle.small {
        width: 90px;
        height: 90px;
        left: 130px;
    }
    
    .device-showcase {
        grid-template-columns: 1fr;
    }
    
    .platform-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .core-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .logos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bottom-cta-title {
        font-size: 1.3rem;
        padding: 0 20px;
    }
    
    .modules-container {
        flex-direction: column;
        padding: 20px;
    }
    
    .module-card {
        flex: 1;
        width: 100%;
    }
    
    .category-menu {
        flex-direction: column;
    }
    
    .menu-item {
        min-width: auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 32px;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 576px) {
    .main-content {
        padding: 16px;
    }
    
    .section-header .section-title {
        font-size: 1.5rem;
    }
    
    .doc-title {
        font-size: 1.3rem;
    }
    
    .hot-bank-card {
        padding: 18px 16px;
    }
    
    .core-features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .core-feature-item {
        padding: 16px 6px;
    }
    
    .core-icon {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }
    
    .stats-title {
        font-size: 1.6rem;
    }
    
    .showcase-title {
        font-size: 1.4rem;
    }
    
    .bottom-cta-title {
        font-size: 1.2rem;
    }
    
    .bottom-cta-buttons {
        flex-direction: column;
        align-items: center;
        padding: 0 40px;
    }
    
    .bottom-cta-buttons .btn-white,
    .bottom-cta-buttons .btn-outline-white {
        width: 100%;
        text-align: center;
    }
    
    .panel-tags {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .panel-tag {
        padding: 6px 8px;
        font-size: 0.75rem;
        min-height: 36px;
    }

    /* 悬浮侧边栏响应式 */
    .floating-sidebar {
        right: 20px;
        border-radius: 12px;
    }

    .float-item {
        width: 56px;
        height: 64px;
    }

    .float-item i {
        font-size: 1.2rem;
    }

    .float-item span {
        font-size: 0.65rem;
    }
}

@media (max-width: 992px) {
    /* 悬浮侧边栏在平板上调整 */
    .floating-sidebar {
        right: 30px;
    }
}

@media (max-width: 480px) {
    /* 超小屏幕隐藏浮动侧边栏，避免遮挡内容 */
    .floating-sidebar {
        display: none;
    }
}

/* ============================================
   额外精致化样式 - v3.1
   ============================================ */

/* 选中文字高亮优化 */
::selection {
    background: rgba(37, 99, 235, 0.15);
    color: #1d4ed8;
}

::-moz-selection {
    background: rgba(37, 99, 235, 0.15);
    color: #1d4ed8;
}

/* 焦点样式优化 */
:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
    border-radius: 6px;
}

/* 按钮点击波纹效果 */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

/* 链接悬停下划线动画 */
.nav-menu li a {
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 10px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 50%;
}

/* 搜索框焦点效果 */
.search-box:focus-within {
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1), 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

/* 搜索标签悬停效果 */
.search-tab {
    position: relative;
}

.search-tab::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.search-tab:hover::after,
.search-tab.active::after {
    width: 100%;
}

/* 文档分类标签悬停效果 */
.doc-cat-item {
    position: relative;
    overflow: hidden;
}

.doc-cat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.doc-cat-item:hover::before {
    left: 100%;
}

/* 热门题库卡片悬停效果增强 */
.hot-bank-card {
    position: relative;
    overflow: hidden;
}

.hot-bank-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    transform: scaleX(0);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* AI功能卡片精致化 */
.ai-feature-card {
    position: relative;
    overflow: hidden;
}

.ai-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    transform: scaleX(0);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 平台统计项悬停效果 */
.platform-stat-item {
    position: relative;
    overflow: hidden;
}

.platform-stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #eff6ff, transparent);
    opacity: 0;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.platform-stat-item:hover::before {
    opacity: 1;
}

/* 客户Logo项精致化 */
.logo-item {
    position: relative;
    overflow: hidden;
}

.logo-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #0ea5e9 100%);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.logo-item:hover::after {
    width: 60%;
}

/* 底部CTA按钮精致化 */
.bottom-cta-buttons .btn {
    position: relative;
    overflow: hidden;
}

.btn-white::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 返回顶部按钮动画 */
.back-to-top {
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.back-to-top::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%);
    transition: width 0.4s ease, height 0.4s ease;
}

.back-to-top:active::before {
    width: 100%;
    height: 100%;
}

/* 轮播图滑块过渡优化 */
.carousel-slide {
    transition: opacity 0.5s ease;
}

.carousel-slide.active {
    opacity: 1;
}

/* 页面加载动画 */
@keyframes pageLoad {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.main-content {
    animation: pageLoad 0.6s ease-out;
}

/* 导航栏滚动效果增强 */
.main-header {
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Toast通知精致化 */
.custom-toast {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* 统计标签精致化 */
.stat-tag {
    position: relative;
    overflow: hidden;
}

.stat-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-tag:hover::before {
    left: 100%;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
    transition: background 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

::-webkit-scrollbar-thumb:hover {
    background: #3b82f6;
}

::-webkit-scrollbar-corner {
    background: transparent;
}

/* 禁用滚动条时的样式 */
body.overflow-hidden {
    overflow: hidden;
    padding-right: 8px;
}

/* ============================================
   浮动侧边栏 - 强制优先样式
   ============================================ */

.floating-sidebar {
    position: fixed !important;
    right: 20px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    background: #ffffff !important;
    border-radius: 12px !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.08) !important;
    z-index: 9999 !important;
    border: 1px solid rgba(226, 232, 240, 0.9) !important;
    display: flex !important;
    flex-direction: column !important;
    visibility: visible !important;
    opacity: 1 !important;
    overflow: hidden !important;
}

.floating-sidebar .float-item {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    width: 68px !important;
    height: 72px !important;
    text-decoration: none !important;
    color: #64748b !important;
    font-size: 0.68rem !important;
    gap: 6px !important;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6) !important;
    transition: all 0.3s ease !important;
    position: relative !important;
    font-weight: 500 !important;
    background: transparent !important;
    cursor: pointer !important;
}

.floating-sidebar .float-item:last-child {
    border-bottom: none !important;
}

.floating-sidebar .float-item:hover {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, rgba(79, 70, 229, 0.08) 100%) !important;
    color: #2563eb !important;
}

.floating-sidebar .float-item i {
    font-size: 1.4rem !important;
    transition: all 0.3s ease !important;
}

.floating-sidebar .float-item:hover i {
    transform: translateY(-2px) scale(1.1) !important;
}

.floating-sidebar .float-item span {
    font-size: 0.7rem !important;
    font-weight: 600 !important;
    letter-spacing: 0.02em !important;
}

/* 微信咨询特殊颜色 */
.floating-sidebar .float-item:nth-child(2):hover {
    background: linear-gradient(135deg, rgba(7, 193, 96, 0.1) 0%, rgba(6, 147, 79, 0.1) 100%) !important;
    color: #07c160 !important;
}

/* TOP按钮样式 */
.floating-sidebar .float-item.float-item-top {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%) !important;
    opacity: 0.4 !important;
    pointer-events: none !important;
}

.floating-sidebar .float-item.float-item-top.visible {
    opacity: 1 !important;
    pointer-events: auto !important;
}

.floating-sidebar .float-item.float-item-top:hover {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%) !important;
    color: #ffffff !important;
}

/* 响应式 - 小屏幕调整 */
@media (max-width: 768px) {
    .floating-sidebar {
        right: 10px !important;
    }
    
    .floating-sidebar .float-item {
        width: 56px !important;
        height: 64px !important;
    }
    
    .floating-sidebar .float-item i {
        font-size: 1.2rem !important;
    }
    
    .floating-sidebar .float-item span {
        font-size: 0.6rem !important;
    }
}

/* 超小屏幕隐藏 */
@media (max-width: 480px) {
    .floating-sidebar {
        display: none !important;
    }
}

/* ============================================
   导航登录/注册悬浮提示框
   ============================================ */
.auth-dropdown-wrapper {
    position: relative;
    display: flex;
    gap: 8px;
}

/* 悬浮提示框 */
.auth-tooltip {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: 320px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
}

.auth-tooltip.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 箭头 */
.tooltip-arrow {
    position: absolute;
    top: -6px;
    right: 40px;
    width: 12px;
    height: 12px;
    background: #ffffff;
    transform: rotate(45deg);
    box-shadow: -2px -2px 4px rgba(0, 0, 0, 0.03);
}

/* 提示框内容 */
.tooltip-content {
    padding: 20px;
    position: relative;
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
}

/* 头部标题 */
.tooltip-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 16px;
}

.tooltip-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, #e5e7eb, transparent);
    max-width: 40px;
}

.tooltip-title {
    font-size: 15px;
    font-weight: 600;
    color: #d4a574;
    white-space: nowrap;
}

/* 功能网格 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.2s;
}

.feature-item:hover {
    background: #f9fafb;
}

.feature-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}

.feature-icon.upload {
    background: #fef3c7;
    color: #f59e0b;
}

.feature-icon.search {
    background: #dbeafe;
    color: #3b82f6;
}

.feature-icon.exam {
    background: #fce7f3;
    color: #ec4899;
}

.feature-icon.practice {
    background: #d1fae5;
    color: #10b981;
}

.feature-icon.analysis {
    background: #e0e7ff;
    color: #6366f1;
}

.feature-icon.prepare {
    background: #fed7aa;
    color: #f97316;
}

.feature-text {
    font-size: 13px;
    color: #4b5563;
    font-weight: 500;
}

/* 立即登录按钮 */
.tooltip-login-btn {
    display: block;
    width: 100%;
    padding: 11px 16px;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: #ffffff;
    text-align: center;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    margin-bottom: 12px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.tooltip-login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    color: #ffffff;
}

/* 底部注册提示 */
.tooltip-footer {
    text-align: center;
    font-size: 13px;
    color: #6b7280;
}

.tooltip-register-link {
    color: #3b82f6;
    font-weight: 600;
    text-decoration: none;
    margin-left: 4px;
    transition: color 0.2s;
}

.tooltip-register-link:hover {
    color: #2563eb;
    text-decoration: underline;
}

    /* 浮动侧边栏容器 */
    .floating-sidebar {
        position: fixed !important;
        right: 20px !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        background: #fff !important;
        border-radius: 12px !important;
        box-shadow: 0 4px 20px rgba(0,0,0,0.15) !important;
        z-index: 99999 !important;
        border: 1px solid #e2e8f0 !important;
        display: flex !important;
        flex-direction: column !important;
        overflow: hidden !important;
    }

    .floating-sidebar .float-item {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        width: 68px !important;
        height: 72px !important;
        text-decoration: none !important;
        color: #64748b !important;
        font-size: 11px !important;
        border-bottom: 1px solid #e2e8f0 !important;
        transition: all 0.3s ease !important;
    }

    .floating-sidebar .float-item:last-child {
        border-bottom: none !important;
    }

    .floating-sidebar .float-item:hover {
        background: rgba(37,99,235,0.08) !important;
        color: #2563eb !important;
    }

    .floating-sidebar .float-item i {
        font-size: 20px !important;
        margin-bottom: 4px !important;
    }

    .floating-sidebar .float-item span {
        font-size: 11px !important;
        font-weight: 600 !important;
    }

    .floating-sidebar .float-item:nth-child(2):hover {
        background: rgba(7,193,96,0.1) !important;
        color: #07c160 !important;
    }

    .floating-sidebar .float-item.float-item-top {
        background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%) !important;
        opacity: 0.4 !important;
        pointer-events: none !important;
    }

    .floating-sidebar .float-item.float-item-top.visible {
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    .floating-sidebar .float-item.float-item-top:hover {
        background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%) !important;
        color: #ffffff !important;
    }

    @media (max-width: 768px) {
        .floating-sidebar {
            right: 10px !important;
        }
        .floating-sidebar .float-item {
            width: 56px !important;
            height: 64px !important;
        }
        .floating-sidebar .float-item i {
            font-size: 1.2rem !important;
        }
        .floating-sidebar .float-item span {
            font-size: 0.6rem !important;
        }
    }

    @media (max-width: 480px) {
        .floating-sidebar {
            display: none !important;
        }
    }

    /* QR Modal Styles */
    .qr-modal {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 10000;
        justify-content: center;
        align-items: center;
        backdrop-filter: blur(4px);
    }

    .qr-modal.active {
        display: flex;
    }

    .qr-modal-content {
        background: #ffffff;
        border-radius: 16px;
        padding: 28px 32px;
        width: 320px;
        text-align: center;
        position: relative;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
        animation: qrModalIn 0.3s ease;
    }

    @keyframes qrModalIn {
        from {
            opacity: 0;
            transform: translateY(20px) scale(0.95);
        }
        to {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
    }

    .qr-close {
        position: absolute;
        top: 12px;
        right: 16px;
        font-size: 28px;
        color: #94a3b8;
        cursor: pointer;
        transition: color 0.2s ease;
        line-height: 1;
    }

    .qr-close:hover {
        color: #64748b;
    }

    .qr-header {
        margin-bottom: 20px;
    }

    .qr-header i {
        font-size: 48px;
        color: #07c160;
        margin-bottom: 12px;
        display: block;
    }

    .qr-header h4 {
        font-size: 1.2rem;
        color: #1e293b;
        font-weight: 600;
        margin: 0;
    }

    .qr-code-box {
        background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
        border-radius: 12px;
        padding: 24px;
        margin-bottom: 16px;
    }

    .qr-placeholder {
        width: 160px;
        height: 160px;
        margin: 0 auto;
        background: #ffffff;
        border-radius: 8px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border: 2px dashed #cbd5e1;
    }

    .qr-placeholder i {
        font-size: 64px;
        color: #94a3b8;
    }

    .qr-placeholder span {
        font-size: 0.85rem;
        color: #64748b;
    }

    .qr-tip {
        font-size: 0.9rem;
        color: #475569;
        margin: 0 0 8px 0;
    }

    .qr-id {
        font-size: 0.85rem;
        color: #2563eb;
        font-weight: 600;
        margin: 0;
        padding: 6px 12px;
        background: rgba(37, 99, 235, 0.08);
        border-radius: 20px;
        display: inline-block;
    }

/* 提示框响应式 */
@media (max-width: 640px) {
    .auth-tooltip {
        width: 280px;
        right: -20px;
    }
    
    .tooltip-arrow {
        right: 60px;
    }
    
    .feature-grid {
        gap: 8px;
    }
    
    .feature-item {
        padding: 6px;
    }
    
    .feature-text {
        font-size: 12px;
    }
}

/* ============================================
   分类导航空数据状态
   ============================================ */

.category-nav-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
    color: #94a3b8;
}

.category-nav-empty i {
    font-size: 2rem;
    margin-bottom: 12px;
    color: #cbd5e1;
}

.category-nav-empty span {
    font-size: 0.85rem;
    font-weight: 500;
}