/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2e7d32;
    --primary-dark: #1b5e20;
    --primary-light: #4caf50;
    --secondary-color: #ff9800;
    --accent-color: #2196f3;
    --text-color: #333;
    --text-light: #666;
    --background: #f5f5f5;
    --white: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.9);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 粒子背景样式 */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, #1a2a3a 0%, #2c3e50 100%);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-item {
    margin-left: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: var(--transition);
}

/* 英雄区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    padding: 0 20px;
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-color);
}

.hero-subtitle {
    display: block;
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 10px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(46, 125, 50, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(46, 125, 50, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 20px;
}

.charging-animation {
    position: relative;
    width: 400px;
    height: 300px;
}

.charging-station {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 180px;
}

.station-base {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 20px;
    background-color: #555;
    border-radius: 5px 5px 0 0;
}

.station-pole {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 15px;
    height: 120px;
    background-color: #777;
}

.station-head {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 30px;
    background-color: #333;
    border-radius: 5px;
}

.charging-cable {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 100px;
}

.cable {
    width: 100%;
    height: 100%;
    background-color: #444;
    border-radius: 5px;
}

.connector {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 25px;
    height: 15px;
    background-color: #ff9800;
    border-radius: 3px;
}

.energy-flow {
    position: absolute;
    bottom: 140px;
    left: 50%;
    transform: translateX(-50%);
    width: 5px;
    height: 0;
    background: linear-gradient(to top, rgba(76, 175, 80, 0) 0%, #4caf50 100%);
    animation: energyFlow 2s infinite alternate;
    border-radius: 5px;
}

@keyframes energyFlow {
    0% {
        height: 0;
        opacity: 0.5;
    }
    100% {
        height: 100px;
        opacity: 1;
    }
}

.electric-car {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(50px);
    width: 120px;
    height: 60px;
    animation: carMove 8s infinite alternate;
}

.car-body {
    position: relative;
    width: 100%;
    height: 100%;
    background-color: #3498db;
    border-radius: 10px 10px 5px 5px;
}

.car-window {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 40px;
    height: 20px;
    background-color: #aed6f1;
    border-radius: 5px;
}

.car-wheel {
    position: absolute;
    bottom: -5px;
    width: 15px;
    height: 15px;
    background-color: #333;
    border-radius: 50%;
}

.front-wheel {
    left: 15px;
}

.back-wheel {
    right: 15px;
}

@keyframes carMove {
    0% {
        transform: translateX(50px);
    }
    50% {
        transform: translateX(-50px);
    }
    100% {
        transform: translateX(50px);
    }
}

/* 通用部分样式 */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* 技术可行性分析部分 */
.tech-section {
    background-color: var(--white);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.tech-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
    z-index: -1;
}

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

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: var(--transition);
}

.tech-card:hover .tech-icon {
    color: var(--accent-color);
    transform: scale(1.1);
}

.tech-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.tech-description {
    color: var(--text-light);
    line-height: 1.7;
}

/* 市场前景分析部分 */
.market-section {
    background-color: var(--background);
}

.market-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.market-text {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.market-point {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.market-point:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.market-point h3 {
    display: flex;
    align-items: center;
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.market-point h3 i {
    margin-right: 10px;
    font-size: 1.5rem;
}

.market-point p {
    color: var(--text-light);
    line-height: 1.7;
}

.market-visual {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.stats-container {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-light);
    font-weight: 500;
}

.market-chart {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chart-bar {
    display: flex;
    align-items: center;
    gap: 15px;
}

.bar-label {
    width: 120px;
    font-weight: 500;
    color: var(--text-color);
}

.bar-fill {
    flex: 1;
    height: 20px;
    background-color: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    transition: width 1.5s ease;
}

/* 经济性分析部分 */
.economics-section {
    background-color: var(--white);
}

.economics-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.economics-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.economics-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 25px;
    display: flex;
    align-items: center;
}

.card-header i {
    font-size: 2rem;
    margin-right: 15px;
}

.card-header h3 {
    font-size: 1.5rem;
}

.card-body {
    padding: 25px;
}

.card-body p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.profit-breakdown {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.profit-item {
    display: flex;
    justify-content: space-between;
    padding-bottom: 10px;
    border-bottom: 1px dashed #e0e0e0;
}

.profit-item.total {
    border-bottom: none;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.1rem;
    padding-top: 10px;
    border-top: 2px solid var(--primary-color);
}

.profit-label {
    color: var(--text-color);
}

.profit-value {
    color: var(--primary-color);
    font-weight: 600;
}

.cost-comparison {
    display: flex;
    justify-content: space-between;
    margin: 25px 0;
}

.cost-type {
    text-align: center;
    flex: 1;
}

.cost-type h4 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.cost-amount {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.savings {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(76, 175, 80, 0.1);
    padding: 15px;
    border-radius: 10px;
    margin-top: 20px;
    color: var(--primary-color);
    font-weight: 600;
}

.savings i {
    margin-right: 10px;
    font-size: 1.5rem;
}

.revenue-model {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.revenue-source h4 {
    margin-bottom: 10px;
    color: var(--text-color);
}

.revenue-source ul {
    list-style-type: none;
    padding-left: 0;
}

.revenue-source li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    color: var(--text-light);
    position: relative;
    padding-left: 20px;
}

.revenue-source li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.growth-indicator {
    margin-top: 20px;
}

.growth-bar {
    height: 10px;
    background-color: #e0e0e0;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 10px;
}

.growth-fill {
    height: 100%;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    border-radius: 5px;
    width: 0;
    transition: width 1.5s ease;
}

.growth-text {
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
}

/* 优缺点分析部分 */
.pros-cons-section {
    background-color: var(--background);
}

.pros-cons-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.pros-column, .cons-column {
    display: flex;
    flex-direction: column;
}

.pros-title, .cons-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 3px solid;
}

.pros-title {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.cons-title {
    color: #f44336;
    border-color: #f44336;
}

.pros-title i, .cons-title i {
    margin-right: 10px;
    font-size: 2rem;
}

.pros-list, .cons-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.pros-item, .cons-item {
    display: flex;
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.pros-item:hover, .cons-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.pros-icon, .cons-icon {
    font-size: 2.5rem;
    margin-right: 20px;
    flex-shrink: 0;
}

.pros-icon {
    color: var(--primary-color);
}

.cons-icon {
    color: #f44336;
}

.pros-content h4, .cons-content h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.pros-content p, .cons-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* 动画类 */
.animate-fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
}

.animate-slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 1s ease 0.3s forwards;
}

.animate-card {
    opacity: 0;
    transform: translateY(30px);
}

.animate-slide-left {
    opacity: 0;
    transform: translateX(-30px);
}

.animate-slide-right {
    opacity: 0;
    transform: translateX(30px);
}

.animate-stat {
    opacity: 0;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .market-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .pros-cons-container {
        grid-template-columns: 1fr;
        gap: 50px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 15px 0;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 120px 0 50px;
    }
    
    .hero-content {
        margin-bottom: 50px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .stats-container {
        flex-direction: column;
        gap: 30px;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .economics-content {
        grid-template-columns: 1fr;
    }
    
    .cost-comparison {
        flex-direction: column;
        gap: 20px;
    }
    
    .pros-item, .cons-item {
        flex-direction: column;
        text-align: center;
    }
    
    .pros-icon, .cons-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
}
/* 联系我们部分 */
.contact-section {
    background-color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.contact-details h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

.contact-details p {
    color: var(--text-light);
    font-size: 1.1rem;
}

.contact-form {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--text-color);
    text-align: center;
}

.form-group {
    position: relative;
    margin-bottom: 25px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background-color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
    resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.form-group label {
    position: absolute;
    top: 15px;
    left: 15px;
    color: var(--text-light);
    pointer-events: none;
    transition: var(--transition);
    background-color: var(--white);
    padding: 0 5px;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:valid + label,
.form-group textarea:valid + label {
    top: -10px;
    left: 10px;
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
}

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, #1a2a3a 0%, #2c3e50 100%);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-logo i {
    margin-right: 10px;
    font-size: 2rem;
}

.footer-text {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 600px;
    line-height: 1.7;
    opacity: 0.9;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.3rem;
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

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

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
    margin-right: 10px;
}

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

/* 成功消息提示 */
.success-message {
    background-color: #4caf50;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    text-align: center;
    display: none;
}

/* 响应式设计补充 */
@media (max-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-info {
        order: 2;
    }
    
    .contact-form {
        order: 1;
    }
}

@media (max-width: 768px) {
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .footer-logo {
        font-size: 1.5rem;
    }
    
    .footer-text {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .contact-form {
        padding: 20px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 12px;
    }
}
/* 确保进度条填充色显示 */
.chart-bar[data-percentage="80"] .bar-fill::after {
    width: 80%;
    background: linear-gradient(to right, #2e7d32, #4caf50);
}

.chart-bar[data-percentage="75"] .bar-fill::after {
    width: 75%;
    background: linear-gradient(to right, #2e7d32, #4caf50);
}

.chart-bar[data-percentage="90"] .bar-fill::after {
    width: 90%;
    background: linear-gradient(to right, #2e7d32, #4caf50);
}

.chart-bar[data-percentage="70"] .bar-fill::after {
    width: 70%;
    background: linear-gradient(to right, #2e7d32, #4caf50);
}
/* 技术可行性分析部分 - 修复后的网格布局 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    justify-items: center;
}

.tech-card {
    width: 100%;
    max-width: 380px;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
    z-index: -1;
}

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

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: var(--transition);
    text-align: center;
}

.tech-card:hover .tech-icon {
    color: var(--accent-color);
    transform: scale(1.1);
}

.tech-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
    text-align: center;
}

.tech-description {
    color: var(--text-light);
    line-height: 1.7;
    flex-grow: 1;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-card {
        max-width: 100%;
    }
}
/* 橙色渐变文字样式 - 修复版 */
.hero-title .gradient-text {
    background: linear-gradient(135deg, #FF5722, #FF9800, #FFC107) !important;
    -webkit-background-clip: text !important;
    background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    color: transparent !important;
    display: inline-block;
    font-weight: 800;
    text-shadow: none;
}
/* 优点网格布局 */
.pros-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.pros-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    position: relative;
    overflow: hidden;
}

.pros-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.pros-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-right: 20px;
    flex-shrink: 0;
    transition: var(--transition);
}

.pros-card:hover .pros-icon {
    color: var(--accent-color);
    transform: scale(1.1);
}

.pros-content h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.pros-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .pros-grid {
        grid-template-columns: 1fr;
    }
    
    .pros-card {
        flex-direction: column;
        text-align: center;
    }
    
    .pros-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
}
/* 技术可行性分析网格布局 - 每排3个卡片 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    justify-items: center;
    margin-bottom: 60px; /* 动素留空 */
}

.tech-card {
    width: 100%;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
    z-index: -1;
}

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

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: var(--transition);
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 64px;
}

.tech-card:hover .tech-icon {
    color: var(--accent-color);
    transform: scale(1.1);
}

.tech-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
    text-align: center;
}

.tech-description {
    color: var(--text-light);
    line-height: 1.7;
    flex-grow: 1;
}

/* SVG图标样式 */
.svg-icon {
    width: 64px;
    height: 64px;
    color: var(--primary-color);
    transition: var(--transition);
}

.tech-card:hover .svg-icon {
    color: var(--accent-color);
    transform: scale(1.1);
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .tech-grid {
        grid-template-columns: 1fr;
    }
}
/* 科技感动画容器 */
.tech-animation-container {
    position: relative;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 40px 0;
    background: linear-gradient(135deg, rgba(46, 125, 50, 0.05), rgba(33, 150, 243, 0.05));
    border-radius: 20px;
    overflow: hidden;
}

/* 充电动画 */
.charging-pulse-animation {
    position: relative;
    width: 120px;
    height: 180px;
    display: flex;
    justify-content: center;
}

.charging-station-tech {
    position: absolute;
    bottom: 0;
    width: 60px;
    height: 150px;
    z-index: 10;
}

.station-base-tech {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 15px;
    background: linear-gradient(135deg, #2e7d32, #4caf50);
    border-radius: 5px 5px 0 0;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.5);
}

.station-pole-tech {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 100px;
    background: linear-gradient(to top, #2e7d32, #4caf50);
    border-radius: 6px;
}

.station-head-tech {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 25px;
    background: linear-gradient(135deg, #1b5e20, #2e7d32);
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-light {
    width: 8px;
    height: 8px;
    background-color: #4caf50;
    border-radius: 50%;
    animation: techLight 2s infinite alternate;
}

@keyframes techLight {
    0% {
        background-color: #4caf50;
        box-shadow: 0 0 5px #4caf50;
    }
    100% {
        background-color: #2196f3;
        box-shadow: 0 0 15px #2196f3, 0 0 30px #2196f3;
    }
}

/* 脉冲圆圈动画 */
.pulse-circle {
    position: absolute;
    border: 2px solid #4caf50;
    border-radius: 50%;
    opacity: 0;
    animation: pulse 3s infinite;
}

.pulse-1 {
    width: 80px;
    height: 80px;
    animation-delay: 0s;
}

.pulse-2 {
    width: 120px;
    height: 120px;
    animation-delay: 1s;
}

.pulse-3 {
    width: 160px;
    height: 160px;
    animation-delay: 2s;
}

@keyframes pulse {
    0% {
        transform: scale(0.5);
        opacity: 0.8;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* 数据流动画 */
.data-flow-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.data-node {
    position: absolute;
    width: 6px;
    height: 6px;
    background-color: #2196f3;
    border-radius: 50%;
    box-shadow: 0 0 10px #2196f3;
    animation: dataFlow 4s infinite linear;
}

.node-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.node-2 {
    top: 40%;
    left: 30%;
    animation-delay: 0.5s;
}

.node-3 {
    top: 60%;
    left: 50%;
    animation-delay: 1s;
}

.node-4 {
    top: 40%;
    left: 70%;
    animation-delay: 1.5s;
}

.node-5 {
    top: 20%;
    left: 90%;
    animation-delay: 2s;
}

@keyframes dataFlow {
    0% {
        transform: translateY(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100px);
        opacity: 0;
    }
}

/* 确保最后一排两个卡片居中显示 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    justify-items: center;
}

/* 当只有两个卡片在最后一排时，通过媒体查询调整 */
@media (min-width: 1200px) {
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* 确保最后一排两个卡片居中 */
    .tech-grid:has(.tech-card:nth-last-child(2):first-child) {
        justify-content: center;
    }
}

/* 响应式调整 */
@media (max-width: 1199px) {
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-animation-container {
        height: 150px;
    }
}
/* 强力修复粒子效果 */
#particles-js {
    position: fixed !important;
    width: 100% !important;
    height: 100% !important;
    top: 0 !important;
    left: 0 !important;
    z-index: -9999 !important;
    background: linear-gradient(135deg, #1a2a3a 0%, #2c3e50 100%) !important;
}

/* 确保其他内容不会覆盖粒子 */
body > *:not(#particles-js) {
    position: relative;
    z-index: 1;
}
/* 导航栏容器使用flex布局 */
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap; /* 防止溢出 */
}

/* 导航菜单占满剩余空间，让下载按钮自动靠右 */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1; 
}

/* 下载按钮 */
.nav-download-btn {
    background-color: #ff9800;   
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    margin-left: auto;   
    margin-right: 15px;  
    white-space: nowrap;
    box-shadow: 0 4px 10px rgba(46, 125, 50, 0.3);
}

.nav-download-btn i {
    font-size: 0.9rem;
}

.nav-download-btn:hover {
    background-color: var(--primary-dark);       
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(46, 125, 50, 0.4);
}

/* 移动端 */
@media (max-width: 768px) {
    .nav-container {
        justify-content: space-between;
    }
    .nav-menu {
        flex: none;             
        width: 100%;            
        order: 3;               
        flex-direction: column;
        background: rgba(255,255,255,0.95);
        position: absolute;     
        top: 70px;
        left: -100%;
        transition: 0.3s;
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-download-btn {
        margin-left: 0;
        margin-right: 10px;
        order: 2;                
        padding: 6px 12px;
        font-size: 0.9rem;
    }
    .hamburger {
        order: 1;
    }
}
/* ghostzqaq防伪 */