/* 全局样式 */
:root {
    --primary-color: #00a8ff;
    --secondary-color: #007bff;
    --accent-color: #0097e6;
    --dark-color: #2d3436;
    --light-color: #f5f6fa;
    --success-color: #4cd137;
    --gray-color: #7f8c8d;
    --section-padding: 80px 0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    position: absolute;
    width: 50%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    bottom: -10px;
    left: 25%;
    border-radius: 3px;
}

.section-header p {
    color: var(--gray-color);
    font-size: 1.1rem;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 168, 255, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(0, 168, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 168, 255, 0.2);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.logo h1:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin: 0 15px;
}

.nav-links a {
    font-weight: 600;
    color: var(--dark-color);
    position: relative;
    transition: all 0.3s ease;
}

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

.nav-links a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
    border-radius: 2px;
}

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

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

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 主页横幅 */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon fill="rgba(255,255,255,0.05)" points="0,100 100,0 100,100"/></svg>');
    background-size: cover;
}

.hero .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    flex: 1;
    padding-right: 30px;
}

.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark-color);
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--gray-color);
    margin-bottom: 30px;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    animation: float 3s ease-in-out infinite;
}

.hero-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

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

/* 产品特点 */
.features {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

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

.feature-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-card .icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 10px 20px rgba(0, 168, 255, 0.3);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--gray-color);
    font-size: 0.95rem;
}

/* 系统优势 */
.advantages {
    padding: var(--section-padding);
    background-color: white;
}

.advantages-content {
    max-width: 900px;
    margin: 0 auto;
}

.advantage-item {
    display: flex;
    margin-bottom: 50px;
    align-items: center;
}

.advantage-item:last-child {
    margin-bottom: 0;
}

.advantage-icon {
    flex: 0 0 80px;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 30px;
    color: white;
    font-size: 2rem;
    box-shadow: 0 10px 20px rgba(0, 168, 255, 0.3);
    transition: all 0.3s ease;
}

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

.advantage-text {
    flex-grow: 1;
}

.advantage-text h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.advantage-text p {
    color: var(--gray-color);
    font-size: 1rem;
}

/* 关于我们 */
.about {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
}

.about-image img {
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.about-text {
    flex: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--gray-color);
    font-size: 1.05rem;
    line-height: 1.8;
}

/* 联系我们 */
.contact {
    padding: var(--section-padding);
    background-color: white;
}

.contact-wrapper {
    display: flex;
    gap: 50px;
}

.contact-form {
    flex: 1;
    background-color: white;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--dark-color);
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #eee;
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.1);
}

.form-group textarea {
    height: 150px;
    resize: none;
}

.contact-info {
    flex: 1;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    padding: 40px;
    color: white;
    box-shadow: 0 10px 30px rgba(0, 168, 255, 0.3);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    text-align: center;
}

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.info-item i {
    flex: 0 0 30px;
    font-size: 1.2rem;
    margin-right: 15px;
}

.info-item p {
    flex-grow: 1;
    font-size: 1.05rem;
}

.qrcode {
    text-align: center;
    margin-top: 30px;
}

.qrcode img {
    border-radius: 10px;
    margin-bottom: 10px;
    border: 5px solid rgba(255, 255, 255, 0.2);
}

/* 页脚 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding-top: 80px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.footer-logo h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.footer-logo p {
    color: #bbb;
    max-width: 250px;
}

.footer-links {
    display: flex;
    gap: 50px;
}

.footer-links-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: white;
}

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

.footer-links-column ul li a {
    color: #bbb;
    transition: all 0.3s ease;
}

.footer-links-column ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: #bbb;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

/* 响应式设计 */
@media screen and (max-width: 1024px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .about-content,
    .contact-wrapper {
        flex-direction: column;
    }
    
    .feature-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media screen and (max-width: 768px) {
    .navbar .container {
        padding: 10px 20px;
    }
    
    .nav-links {
        position: absolute;
        right: 0px;
        height: 92vh;
        top: 8vh;
        background-color: rgba(255, 255, 255, 0.95);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 50%;
        transform: translateX(100%);
        transition: transform 0.3s ease-in;
        box-shadow: -5px 0 10px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    .nav-links li {
        margin: 20px 0;
    }
    
    .burger {
        display: block;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 50px;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .advantage-item {
        flex-direction: column;
        text-align: center;
    }
    
    .advantage-icon {
        margin: 0 auto 20px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}

.nav-active {
    transform: translateX(0%);
}

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