/* 企业投诉管理平台官网样式 */
/* 作者：@印记（抖音号：189457282） */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 隐藏滚动条 */
::-webkit-scrollbar {
    width: 0px;
    background: transparent;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: transparent;
}

/* Firefox 滚动条隐藏 */
html {
    scrollbar-width: none;
}

/* 通用滚动条隐藏 */
body, .container, .navbar, .hero-section, .features-section {
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

body::-webkit-scrollbar,
.container::-webkit-scrollbar,
.navbar::-webkit-scrollbar,
.hero-section::-webkit-scrollbar,
.features-section::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #4facfe;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-muted: #a0aec0;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* 全局装饰效果 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(79, 172, 254, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: floatingBg 20s ease-in-out infinite;
}

@keyframes floatingBg {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(-20px, -20px) scale(1.02);
    }
    66% {
        transform: translate(20px, -10px) scale(0.98);
    }
}

body {
    font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    position: relative;
}

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

/* 导航栏 */
/* 导航栏阴影效果增强 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
}

.navbar::before {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.navbar:hover::before {
    opacity: 1;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    color: #333333;
    text-decoration: none;
}

.brand-icon {
    display: inline-block;
}

.brand-icon img {
    display: block;
    width: 32px;
    height: 32px;
}

.brand-text {
    color: #333333;
    font-size: 20px;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

/* 导航链接悬停效果增强 */
.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 8px 12px;
    border-radius: 8px;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--bg-gradient);
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 1px;
}

.nav-link:hover::after {
    width: 80%;
}

.nav-btn {
    background: var(--bg-gradient);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* 移动端导航按钮区域 */
.mobile-nav-actions {
    display: none;
    align-items: center;
    gap: 12px;
}

.mobile-login-btn {
    display: inline-block;
    background: var(--bg-gradient);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.mobile-login-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 移动端菜单 */
.mobile-menu {
    display: none;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    border-top: 1px solid var(--border-color);
    padding: 16px 20px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.mobile-nav-link {
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 12px 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    transition: var(--transition);
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

.mobile-nav-link:hover {
    color: var(--primary-color);
    padding-left: 8px;
}

/* 主横幅 */
/* 页面入场动画 */
.hero {
    margin-top: 70px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    position: relative;
    overflow: hidden;
    animation: heroEntry 1.2s ease-out;
}

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

.hero::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='%23667eea' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    animation: backgroundFloat 15s ease-in-out infinite;
}

/* 浮动装饰元素 */
.hero::after {
    content: '';
    position: absolute;
    top: 10%;
    right: 10%;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float1 6s ease-in-out infinite;
    pointer-events: none;
}

.features::after {
    content: '';
    position: absolute;
    bottom: 20%;
    left: 5%;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float2 8s ease-in-out infinite;
    pointer-events: none;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 15%;
    right: 8%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: float3 7s ease-in-out infinite;
    pointer-events: none;
}

@keyframes float1 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(-30px, -20px) scale(1.1);
    }
    66% {
        transform: translate(20px, -30px) scale(0.9);
    }
}

@keyframes float2 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(25px, -25px) scale(1.2);
    }
}

@keyframes float3 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(-15px, 20px) scale(0.8);
    }
    75% {
        transform: translate(15px, -15px) scale(1.1);
    }
}

/* 微粒子效果 */
.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
        radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
    background-size: 100px 100px, 150px 150px, 200px 200px;
    animation: particles 20s linear infinite;
    pointer-events: none;
}

@keyframes particles {
    from {
        transform: translate(0, 0);
    }
    to {
        transform: translate(-100px, -100px);
    }
}

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

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-highlight {
    display: block;
    font-size: 2.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 8px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 48px;
}

/* 按钮增强效果 */
.btn {
    padding: 16px 32px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    transition: all 0.4s ease;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

.btn:hover::before {
    width: 200px;
    height: 200px;
}

.btn-primary {
    background: var(--bg-gradient);
    color: white;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #7c94ea 0%, #8659b2 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.btn-large {
    padding: 20px 40px;
    font-size: 1.1rem;
}

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

/* 数据统计卡片增强 */
.stat-item {
    text-align: center;
    animation: statEntry 1s ease-out;
    animation-delay: var(--delay, 0s);
    animation-fill-mode: both;
}

@keyframes statEntry {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.stat-item:nth-child(1) { --delay: 0.1s; }
.stat-item:nth-child(2) { --delay: 0.2s; }
.stat-item:nth-child(3) { --delay: 0.3s; }

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.hero-visual {
    animation: fadeInRight 1s ease-out;
}

.visual-container {
    position: relative;
    perspective: 1000px;
}

/* 仪表盘预览卡片美化 */
.dashboard-preview {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transform: rotateY(-10deg) rotateX(5deg);
    transition: var(--transition);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
}

.dashboard-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.dashboard-preview:hover {
    transform: rotateY(-3deg) rotateX(2deg) scale(1.02);
    box-shadow: 0 25px 50px rgba(102, 126, 234, 0.2);
}

.dashboard-preview:hover::before {
    opacity: 1;
}

.preview-header {
    background: var(--bg-gradient);
    color: white;
    padding: 20px;
    font-weight: 600;
    position: relative;
    z-index: 2;
}

.preview-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 2;
}

/* 预览统计项效果增强 */
.preview-stat {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.preview-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s ease;
}

.preview-stat:hover {
    background: rgba(102, 126, 234, 0.05);
    transform: translateX(5px);
}

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

.stat-icon {
    font-size: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(102, 126, 234, 0.3));
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.stat-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 32px;
    height: 32px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    animation: statGlow 2s ease-in-out infinite alternate;
}

.stat-icon::after {
    content: '●';
    position: absolute;
    top: -4px;
    right: -4px;
    width: 6px;
    height: 6px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 50%;
    font-size: 6px;
    animation: statBlink 3s ease-in-out infinite;
    box-shadow: 0 0 4px rgba(102, 126, 234, 0.8);
}

@keyframes statGlow {
    from {
        box-shadow: 0 0 5px rgba(102, 126, 234, 0.3);
    }
    to {
        box-shadow: 0 0 15px rgba(102, 126, 234, 0.5);
    }
}

@keyframes statBlink {
    0%, 100% {
        opacity: 0.5;
        transform: scale(0.8);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

.preview-stat:hover .stat-icon {
    transform: scale(1.1);
    filter: drop-shadow(0 3px 6px rgba(102, 126, 234, 0.4));
}

.stat-text {
    font-weight: 600;
    color: var(--text-primary);
}

/* 通用样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: conic-gradient(from 45deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transform: rotate(0deg);
    transition: transform 0.6s ease;
    opacity: 0;
}

.feature-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.3);
}

.feature-card:hover::before {
    opacity: 1;
    transform: rotate(180deg);
}

/* 为每个功能卡片添加不同的主题色彩和特殊效果 */
.feature-card:nth-child(1) {
    border-top: 3px solid #667eea;
}

.feature-card:nth-child(1):hover {
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
}

.feature-card:nth-child(1) .feature-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(1) .feature-icon::after {
    background: conic-gradient(from 45deg, rgba(102, 126, 234, 0.3), transparent, rgba(118, 75, 162, 0.3), transparent) border-box;
}

.feature-card:nth-child(2) {
    border-top: 3px solid #4facfe;
}

.feature-card:nth-child(2):hover {
    box-shadow: 0 20px 40px rgba(79, 172, 254, 0.2);
}

.feature-card:nth-child(2) .feature-icon {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(2) .feature-icon::after {
    background: conic-gradient(from 45deg, rgba(79, 172, 254, 0.3), transparent, rgba(0, 242, 254, 0.3), transparent) border-box;
}

.feature-card:nth-child(3) {
    border-top: 3px solid #ff6b6b;
}

.feature-card:nth-child(3):hover {
    box-shadow: 0 20px 40px rgba(255, 107, 107, 0.2);
}

.feature-card:nth-child(3) .feature-icon {
    background: linear-gradient(135deg, #ff6b6b 0%, #feca57 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(3) .feature-icon::after {
    background: conic-gradient(from 45deg, rgba(255, 107, 107, 0.3), transparent, rgba(254, 202, 87, 0.3), transparent) border-box;
}

.feature-card:nth-child(4) {
    border-top: 3px solid #4ecdc4;
}

.feature-card:nth-child(4):hover {
    box-shadow: 0 20px 40px rgba(78, 205, 196, 0.2);
}

.feature-card:nth-child(4) .feature-icon {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(4) .feature-icon::after {
    background: conic-gradient(from 45deg, rgba(78, 205, 196, 0.3), transparent, rgba(68, 160, 141, 0.3), transparent) border-box;
}

.feature-card:nth-child(5) {
    border-top: 3px solid #45b7d1;
}

.feature-card:nth-child(5):hover {
    box-shadow: 0 20px 40px rgba(69, 183, 209, 0.2);
}

.feature-card:nth-child(5) .feature-icon {
    background: linear-gradient(135deg, #45b7d1 0%, #96c93d 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(5) .feature-icon::after {
    background: conic-gradient(from 45deg, rgba(69, 183, 209, 0.3), transparent, rgba(150, 201, 61, 0.3), transparent) border-box;
}

.feature-card:nth-child(6) {
    border-top: 3px solid #f9ca24;
}

.feature-card:nth-child(6):hover {
    box-shadow: 0 20px 40px rgba(249, 202, 36, 0.2);
}

.feature-card:nth-child(6) .feature-icon {
    background: linear-gradient(135deg, #f9ca24 0%, #f0932b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:nth-child(6) .feature-icon::after {
    background: conic-gradient(from 45deg, rgba(249, 202, 36, 0.3), transparent, rgba(240, 147, 43, 0.3), transparent) border-box;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 8px rgba(102, 126, 234, 0.25));
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    transition: all 0.3s ease;
    animation: breathe 3s ease-in-out infinite;
}

.feature-icon::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid transparent;
    border-radius: 50%;
    background: conic-gradient(from 45deg, rgba(102, 126, 234, 0.3), transparent, rgba(118, 75, 162, 0.3), transparent) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: all 0.3s ease;
    animation: rotateRing 6s linear infinite;
}

@keyframes breathe {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.8;
    }
}

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

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 6px 12px rgba(102, 126, 234, 0.4));
}

.feature-card:hover .feature-icon::before {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
}

.feature-card:hover .feature-icon::after {
    opacity: 1;
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

/* 产品优势 */
.advantages {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.advantages::after {
    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='M50 5L60 35L90 35L68 57L78 87L50 70L22 87L32 57L10 35L40 35Z' fill='%23667eea' fill-opacity='0.02'/%3E%3C/svg%3E");
    background-size: 150px 150px;
    animation: moveStars 25s linear infinite;
    pointer-events: none;
}

@keyframes moveStars {
    from {
        transform: translate(0, 0);
    }
    to {
        transform: translate(-150px, -150px);
    }
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.advantage-item {
    text-align: center;
    padding: 40px 24px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.advantage-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(79, 172, 254, 0.1), transparent);
    transition: left 0.6s ease;
}

.advantage-item:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 15px 30px rgba(79, 172, 254, 0.15);
}

.advantage-item:hover::after {
    left: 100%;
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 8px rgba(79, 172, 254, 0.3));
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.advantage-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    z-index: -1;
    border-radius: 50%;
    transition: all 0.3s ease;
    animation: ripple 2s ease-in-out infinite;
}

.advantage-icon::after {
    content: '•';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 8px;
    height: 8px;
    background: linear-gradient(45deg, #4facfe, #00f2fe);
    border-radius: 50%;
    font-size: 8px;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: blink 2s ease-in-out infinite;
    box-shadow: 0 0 6px rgba(79, 172, 254, 0.6);
}

@keyframes ripple {
    0% {
        box-shadow: 0 0 0 0 rgba(79, 172, 254, 0.4);
    }
    100% {
        box-shadow: 0 0 0 20px rgba(79, 172, 254, 0);
    }
}

@keyframes blink {
    0%, 100% {
        opacity: 0.6;
        transform: scale(0.8);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.15) rotateY(15deg);
    filter: drop-shadow(0 8px 16px rgba(79, 172, 254, 0.4));
}

.advantage-item:hover .advantage-icon::after {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.25) 0%, transparent 70%);
}

.advantage-item h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.advantage-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 应用场景 */
.cases {
    padding: 100px 0;
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.cases::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 140%;
    height: 200%;
    background: conic-gradient(from 45deg at 50% 50%, 
        rgba(102, 126, 234, 0.03) 0deg, 
        transparent 60deg, 
        rgba(118, 75, 162, 0.03) 120deg, 
        transparent 180deg,
        rgba(79, 172, 254, 0.03) 240deg,
        transparent 300deg,
        rgba(102, 126, 234, 0.03) 360deg);
    animation: slowRotate 30s linear infinite;
    pointer-events: none;
}

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

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.case-card {
    background: white;
    padding: 32px 24px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff6b6b, #feca57);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 25px rgba(255, 107, 107, 0.15);
    border-color: rgba(255, 107, 107, 0.2);
}

.case-card:hover::before {
    width: 80%;
}

.case-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #ff6b6b 0%, #feca57 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 3px 6px rgba(255, 107, 107, 0.3));
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.case-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 70px;
    height: 70px;
    background: conic-gradient(from 45deg, rgba(255, 107, 107, 0.1), rgba(254, 202, 87, 0.1), rgba(255, 107, 107, 0.1));
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    animation: rotate360 8s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-icon::after {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    width: calc(100% + 16px);
    height: calc(100% + 16px);
    border: 1px solid transparent;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(255, 107, 107, 0.2), rgba(254, 202, 87, 0.2)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: all 0.3s ease;
    animation: borderPulse 3s ease-in-out infinite;
}

@keyframes borderPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
}

.case-card:hover .case-icon {
    transform: scale(1.1);
    filter: drop-shadow(0 6px 12px rgba(255, 107, 107, 0.4));
}

.case-card:hover .case-icon::before {
    opacity: 1;
}

.case-card:hover .case-icon::after {
    opacity: 1;
}

@keyframes rotate360 {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.case-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.case-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: var(--bg-gradient);
    color: white;
}

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

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-features {
    margin-bottom: 32px;
}

.contact-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 1.1rem;
}

/* 特色检查图标 */
.feature-check {
    color: #4ade80;
    font-weight: 700;
    font-size: 1.2rem;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.2) 0%, transparent 50%);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    animation: checkPulse 2s ease-in-out infinite;
    position: relative;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.feature-check::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border: 1px solid rgba(74, 222, 128, 0.2);
    border-radius: 50%;
    animation: checkRipple 2s ease-in-out infinite;
}

.feature-check::after {
    content: '✨';
    position: absolute;
    top: -8px;
    right: -8px;
    font-size: 8px;
    opacity: 0;
    animation: checkSparkle 3s ease-in-out infinite;
}

@keyframes checkPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 8px rgba(74, 222, 128, 0);
    }
}

@keyframes checkRipple {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

@keyframes checkSparkle {
    0%, 90%, 100% {
        opacity: 0;
        transform: scale(0.5) rotate(0deg);
    }
    10%, 80% {
        opacity: 0.8;
        transform: scale(1) rotate(180deg);
    }
}

.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-text {
    color: rgba(255, 255, 255, 0.8);
}

.contact-text a {
    color: white;
    font-weight: 600;
    text-decoration: underline;
}

.contact-visual {
    display: flex;
    justify-content: center;
}

.feature-showcase {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 32px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.showcase-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding: 16px;
    border-radius: 8px;
    transition: var(--transition);
}

.showcase-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.showcase-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, #48cae4 0%, #0077b6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(72, 202, 228, 0.4));
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.showcase-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, rgba(72, 202, 228, 0.2) 0%, transparent 60%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    animation: pulse 2s ease-in-out infinite;
}

.showcase-icon::after {
    content: '⭐';
    position: absolute;
    top: -6px;
    right: -6px;
    font-size: 10px;
    opacity: 0;
    animation: twinkle 4s ease-in-out infinite;
    transform-origin: center;
}

@keyframes twinkle {
    0%, 80%, 100% {
        opacity: 0;
        transform: scale(0.5) rotate(0deg);
    }
    10%, 70% {
        opacity: 1;
        transform: scale(1) rotate(360deg);
    }
}

.showcase-item:hover .showcase-icon {
    transform: scale(1.2);
    filter: drop-shadow(0 4px 8px rgba(72, 202, 228, 0.5));
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.3;
    }
}

.showcase-title {
    font-weight: 700;
    margin-bottom: 4px;
}

.showcase-desc {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* 页脚 */
/* 页脚美化 */
.footer {
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    color: white;
    padding: 40px 0 20px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.5), transparent);
}

.footer::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 40%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(118, 75, 162, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
}

.footer-brand .brand-icon {
    display: inline-block;
}

.footer-brand .brand-icon img {
    display: block;
    width: 24px;
    height: 24px;
}

.footer-brand .brand-text {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
}

.footer-text {
    text-align: center;
    opacity: 0.8;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    gap: 12px;
}

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

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

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

.footer-filing {
    text-align: center;
}

.footer-filing .filing-info {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 8px;
    font-size: 13px;
    color: #999;
}

.footer-filing .filing-info a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.footer-filing .filing-info a:hover {
    color: #ccc;
}

.footer-copyright {
    opacity: 0.6;
    font-size: 0.9rem;
    text-align: center;
}

/* 动画 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-nav-actions {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* 移动端菜单显示状态 */
    .mobile-menu.show {
        display: block;
        animation: slideDown 0.3s ease-out;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .title-highlight {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 24px;
    }
    
    .dashboard-preview {
        transform: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .footer-filing .filing-info {
        flex-direction: column;
        gap: 8px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .title-highlight {
        font-size: 1.6rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .advantage-item {
        padding: 32px 16px;
    }
    
    .case-card {
        padding: 24px 16px;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
}