/* RongWeb - 清洁版本样式 */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    height: auto;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #0a0a0f;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    height: auto;
}

/* 全局背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(74, 172, 254, 0.15) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundPulse 20s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
}

.brand-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.brand-icon i {
    font-size: 1.5rem;
    color: white;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-ghost {
    color: rgba(255, 255, 255, 0.8);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-ghost:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.4);
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #00f2fe;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.hero-feature:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.hero-feature .feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.hero-feature .feature-text h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.hero-feature .feature-text p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* 右侧仪表板预览 */
.hero-visual {
    position: relative;
}

.dashboard-preview {
    width: 100%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.dashboard-preview:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2);
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-controls {
    display: flex;
    gap: 0.5rem;
}

.control-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control-dot.red { background: #ff5f57; }
.control-dot.yellow { background: #ffbd2e; }
.control-dot.green { background: #28ca42; }

.header-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
}

.dashboard-content {
    padding: 1.5rem;
}

.dashboard-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-item.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.nav-item:not(.active):hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.dashboard-main {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(255, 255, 255, 0.05);
}

.stat-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: white;
    flex-shrink: 0;
}

.stat-info {
    flex: 1;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
}

.stat-trend {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    font-weight: 600;
}

.stat-trend.up { color: #00f2fe; }
.stat-trend.down { color: #fa709a; }

.chart-preview {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.chart-header h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
}

.chart-legend {
    display: flex;
    gap: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.6);
}

.legend-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.legend-dot.primary { background: #667eea; }
.legend-dot.secondary { background: #4facfe; }

.chart-bars {
    display: flex;
    align-items: end;
    gap: 4px;
    height: 60px;
    justify-content: space-between;
}

.bar {
    flex: 1;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 2px 2px 0 0;
    min-height: 10px;
    animation: barGrow 1.5s ease-out;
}

@keyframes barGrow {
    from { height: 0; }
    to { height: var(--height, 50%); }
}

/* 浮动元素 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 0.5rem 1rem;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: #ffffff;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: floatCard 4s ease-in-out infinite;
    animation-delay: var(--delay, 0s);
}

.floating-card:nth-child(1) {
    top: 10%;
    right: 5%;
}

.floating-card:nth-child(2) {
    top: 50%;
    left: 5%;
}

.floating-card:nth-child(3) {
    bottom: 20%;
    right: 10%;
}

.floating-card i {
    color: #00f2fe;
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0px);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* 玻璃形态效果 */
.glass {
    background: rgba(255, 255, 255, 0.05) !important;
    backdrop-filter: blur(20px) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
}

/* 功能特性部分 */
.features {
    padding: 6rem 0;
    background: #1a1a2e;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 24px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #00f2fe;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.feature-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.feature-list li::before {
    content: '✓';
    color: #00f2fe;
    font-weight: bold;
}

/* 解决方案部分 */
.solutions {
    padding: 6rem 0;
    background: #16213e;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.solution-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.solution-card.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
}

.solution-card:hover {
    transform: translateY(-8px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2);
}

.solution-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.solution-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin: 0 auto 1.5rem;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.solution-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.solution-header p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.solution-features {
    text-align: left;
    margin-bottom: 1.5rem;
    flex: 1;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.feature-item i {
    color: #00f2fe;
    font-size: 1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-content h5 {
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.feature-content p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
    margin: 0;
}

.solution-stats {
    display: flex;
    justify-content: space-around;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    margin-top: auto;
}

.solution-stats .stat-item {
    text-align: center;
}

.solution-stats .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 0.25rem;
}

.solution-stats .stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

/* 技术架构部分 */
.technology {
    padding: 6rem 0;
    background: #0a0a0f;
}

.tech-architecture {
    max-width: 1000px;
    margin: 0 auto;
}

.arch-diagram {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 4rem;
}

.arch-layer {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.arch-layer:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(255, 255, 255, 0.08);
}

.layer-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1.5rem;
    text-align: center;
}

.layer-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.arch-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.arch-item:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.arch-item i {
    font-size: 1.2rem;
    color: #00f2fe;
}

.arch-item span {
    font-weight: 500;
    color: #ffffff;
}

.tech-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.tech-stat {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.tech-stat:hover {
    border-color: rgba(102, 126, 234, 0.3);
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.tech-stat .stat-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
}

.tech-stat .stat-content {
    flex: 1;
}

.tech-stat .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.tech-stat .stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}



/* 联系我们部分 */
.contact {
    padding: 6rem 0;
    background: #16213e;
    text-align: center;
}

.contact-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

/* 客户见证部分 */
.testimonials {
    padding: 6rem 0;
    background: #1a1a2e;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.testimonial-card.glass {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2);
}

.testimonial-content {
    flex: 1;
    margin-bottom: 1.5rem;
}

.quote-icon {
    font-size: 2rem;
    color: #00f2fe;
    margin-bottom: 1rem;
}

.testimonial-content blockquote {
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    font-style: italic;
    margin: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    flex-shrink: 0;
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}



/* 移动端菜单 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: #ffffff;
    transition: all 0.3s ease;
    border-radius: 1px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-features {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-feature {
        flex: 1;
        min-width: 200px;
    }
    
    .dashboard-preview {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .floating-card {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 12px;
        margin: 1rem;
        padding: 1.5rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hero-title {
        font-size: clamp(1.8rem, 8vw, 3.5rem);
        white-space: nowrap;
    }
    
    .hero-features {
        flex-direction: column;
    }
    
    .hero-feature {
        flex: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .layer-items {
        grid-template-columns: 1fr;
    }
    
    .tech-stats {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    

    
    .contact-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: clamp(1.5rem, 10vw, 2.5rem);
        white-space: nowrap;
    }
    
    .container {
        padding: 0 1rem;
    }
}

/* 滚动动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1a2e;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

/* 选择文本样式 */
::selection {
    background: rgba(102, 126, 234, 0.3);
    color: #ffffff;
}

/* 性能优化 - 只对需要动画的元素应用will-change */
.hero-visual,
.dashboard-preview,
.floating-card,
.feature-card:hover,
.solution-card:hover,
.testimonial-card:hover,
.btn:hover {
    will-change: transform;
}

/* 加载状态 - 移除overflow hidden以修复滚动问题 */
body:not(.loaded) .hero-title {
    opacity: 0;
    transform: translateY(30px);
}

body:not(.loaded) .dashboard-preview {
    opacity: 0;
    transform: translateX(50px);
}

/* 平滑过渡 - 简化以避免性能问题 */
.btn,
.nav-link,
.feature-card,
.solution-card,
.testimonial-card {
    transition: transform 0.3s ease, opacity 0.3s ease, border-color 0.3s ease;
}

/* 焦点样式 */
.btn:focus,
.nav-link:focus {
    outline: 2px solid rgba(102, 126, 234, 0.5);
    outline-offset: 2px;
}

/* 无障碍优化 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-card {
        animation: none !important;
    }
}