/* 基础样式设置 */
:root {
    --primary-color: #0A1624;  /* 深海蓝 */
    --primary-rgb: 10, 22, 36;
    --secondary-color: #35424a;
    --accent-color: #D4AF37;   /* 金色 */
    --accent-rgb: 212, 175, 55;
    --text-color: #333;
    --light-text: #f4f4f4;
    --dark-bg: #0A1624;
    --light-bg: #f9f9f9;
    --border-color: #e5e5e5;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Arial', 'Helvetica', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

section {
    padding: 70px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 30px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-align: center;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
}

.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(--light-text);
}

.btn-small {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* 导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--light-text);
    transition: var(--transition);
}

.logo:hover .company-name {
    transform: scale(1.05);
}

.company-highlight {
    color: var(--accent-color);
    font-weight: 800;
    transition: var(--transition);
}

.logo:hover .company-highlight {
    color: #f0c14b; /* 悬停时稍微变亮的金色 */
}

.nav-links {
    display: flex;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    font-weight: 600;
    color: var(--light-text);
    transition: var(--transition);
    position: relative;
    padding-bottom: 5px;
}

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

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

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

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

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--light-text);
    margin: 5px;
    transition: var(--transition);
}

/* 首页英雄区域 */
.hero {
    padding-top: 150px;
    background: linear-gradient(135deg, #fff 0%, #e6eef5 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

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

.hero-content h1 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--secondary-color);
}

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

.hero-image {
    flex: 1;
    text-align: right;
    max-width: 450px;
}

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

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 20px;
}

.about-features {
    margin-top: 30px;
}

.about-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.about-features i {
    color: var(--accent-color);
    margin-right: 10px;
    font-size: 1.2rem;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.image-placeholder {
    background-color: var(--primary-color);
    height: 300px;
    border-radius: 10px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    opacity: 0.8;
}

/* 添加更多装饰元素以匹配logo风格 */
.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    z-index: 0;
}

/* 技术部分 */
.technologies {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-color) 100%);
    color: var(--light-text);
    position: relative;
    overflow: hidden;
    padding-top: 60px;
    padding-bottom: 80px;
}

.technologies::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.technologies .section-header h2,
.technologies .section-header p {
    color: var(--light-text);
}

/* 技术标签栏样式 */
.tech-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
    gap: 5px;
}

.tech-tab {
    padding: 15px 30px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    text-align: center;
    min-width: 180px;
    user-select: none;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.tech-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: all 0.5s ease;
}

.tech-tab:hover::before {
    left: 100%;
}

.tech-tab:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.tech-tab.active {
    background-color: var(--accent-color);
    color: var(--dark-bg);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 技术内容区域样式 */
.tech-content {
    display: none;
    animation: fadeIn 0.5s ease forwards;
    position: relative;
    z-index: 1;
}

.tech-content.active {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
    justify-content: center;
}

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

.tech-img {
    flex: 1;
    min-width: 300px;
}

.tech-img .image-placeholder {
    height: 350px;
    border-radius: 15px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.tech-img .image-placeholder::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.4) 0%, rgba(var(--accent-rgb), 0.2) 100%);
    border-radius: 15px;
}

.tech-desc {
    flex: 1;
    min-width: 300px;
    padding: 25px 30px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.tech-desc::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
    z-index: -1;
}

.tech-desc h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--accent-color);
    position: relative;
    display: inline-block;
}

.tech-desc h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 3px;
}

.tech-desc p {
    margin-bottom: 25px;
    line-height: 1.8;
    font-size: 1.1rem;
}

.tech-features {
    list-style: none;
    margin-bottom: 30px;
}

.tech-features li {
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
    transition: transform 0.3s ease;
}

.tech-features li:hover {
    transform: translateX(5px);
}

.tech-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.tech-content .btn {
    margin-top: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--light-text);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.tech-content .btn:hover {
    background-color: var(--accent-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

@media screen and (max-width: 768px) {
    .tech-tab {
        padding: 12px 20px;
        min-width: 120px;
        font-size: 0.9rem;
    }
    
    .tech-content.active {
        flex-direction: column;
    }
    
    .tech-img .image-placeholder {
        height: 250px;
        margin-bottom: 20px;
    }
    
    .tech-desc {
        padding: 20px;
    }
    
    .tech-desc h3 {
        font-size: 1.5rem;
    }
    
    .tech-desc p {
        font-size: 1rem;
    }
}

/* 产品展示 */
.products {
    background-color: var(--light-bg);
    padding-top: 60px;
    padding-bottom: 80px;
}

.product-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 10px;
}

.product-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

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

.product-image .image-placeholder {
    height: 200px;
    background-color: var(--primary-color);
    position: relative;
    overflow: hidden;
}

.product-image .image-placeholder::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(to top, rgba(10, 22, 36, 0.7), transparent);
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.product-info p {
    margin-bottom: 20px;
    color: var(--text-color);
}

/* 联系我们 */
.contact {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-bg) 100%);
    color: var(--light-text);
}

.contact .section-header h2,
.contact .section-header p {
    color: var(--light-text);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

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

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.contact-item i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--light-text);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
footer {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo .company-name {
    font-size: 1.8rem;
    color: var(--light-text);
}

.footer-logo:hover .company-name {
    transform: scale(1.05);
}

.footer-logo:hover .company-highlight {
    color: #f0c14b;
}

.footer-links ul {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links a {
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
}

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

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.footer-social a:hover {
    background-color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    body {
        font-size: 0.9rem;
    }

    section {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .nav-links {
        position: absolute;
        right: 0;
        top: 70px;
        background-color: var(--primary-color);
        width: 100%;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        transform: translateY(-20px);
    }

    .nav-links.active {
        opacity: 1;
        pointer-events: all;
        transform: translateY(0);
    }

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

    .burger {
        display: block;
    }

    .hero {
        padding-top: 120px;
        text-align: center;
    }

    .hero .container {
        flex-direction: column;
    }

    .hero-content {
        margin-bottom: 40px;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

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

    .about-content,
    .contact-content {
        flex-direction: column;
    }

    .about-text,
    .about-image {
        width: 100%;
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-links ul {
        justify-content: center;
    }

    .logo .company-highlight {
        display: none;
    }
    
    /* 调整logo在移动设备上的样式 */
    .company-name {
        font-size: 1.2rem;
    }
}

@media screen and (max-width: 480px) {
    .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .btn {
        width: 100%;
    }

    .tech-cards,
    .product-slider {
        grid-template-columns: 1fr;
    }
}

/* 滚动动画 */
.section-header, .tech-card, .product-card, .about-content, .contact-content {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-header.visible, .tech-card.visible, .product-card.visible, .about-content.visible, .contact-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.tech-card:nth-child(2) {
    transition-delay: 0.2s;
}

.tech-card:nth-child(3) {
    transition-delay: 0.4s;
}

.tech-card:nth-child(4) {
    transition-delay: 0.6s;
}

.product-card:nth-child(2) {
    transition-delay: 0.2s;
}

.product-card:nth-child(3) {
    transition-delay: 0.4s;
}

/* 汉堡菜单动画 */
.burger div.toggle:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
    background-color: var(--accent-color);
}

.burger div.toggle:nth-child(2) {
    opacity: 0;
}

.burger div.toggle:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
    background-color: var(--accent-color);
}

/* 语言切换 */
.lang-switch {
    position: relative;
    margin-left: 30px;
    margin-right: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.lang-current {
    color: var(--light-text);
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.lang-current::before {
    content: '\f0ac';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    margin-right: 5px;
    color: var(--accent-color);
}

.lang-current::after {
    content: '\f0d7';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 0.8em;
    margin-left: 5px;
}

.lang-switch:hover .lang-current {
    background-color: rgba(255, 255, 255, 0.1);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--primary-color);
    border-radius: 4px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    padding: 5px 0;
    width: 140px;
    display: none;
    z-index: 100;
}

.lang-switch:hover .lang-dropdown {
    display: block;
}

.lang-dropdown a {
    display: block;
    padding: 8px 15px;
    color: var(--light-text);
    transition: var(--transition);
}

.lang-dropdown a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
}

/* 响应式设计 - 语言选择器 */
@media screen and (max-width: 768px) {
    .lang-switch {
        margin-right: 15px;
        margin-left: auto;
    }
    
    .lang-dropdown {
        right: 0;
    }
}

.tech-icon-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    color: rgba(255, 255, 255, 0.5);
    z-index: 2;
    animation: pulse 3s infinite ease-in-out;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
}

/* 特性部分样式改进 */
.features {
    background: linear-gradient(135deg, #f9f9f9 0%, #e6eef5 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(var(--accent-rgb), 0.1) 0%, transparent 70%);
    z-index: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 35px 25px;
    transition: all 0.4s ease;
    position: relative;
    z-index: 1;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, rgba(var(--primary-rgb), 0.8) 100%);
    z-index: -1;
    transition: all 0.5s ease;
    border-radius: 15px;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(var(--primary-rgb), 0.2);
}

.feature-card:hover::before {
    height: 100%;
}

.feature-card:hover h3,
.feature-card:hover p {
    color: white;
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(var(--primary-rgb), 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.feature-icon i {
    font-size: 32px;
    color: var(--primary-color);
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon i {
    color: var(--accent-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    transition: all 0.4s ease;
    position: relative;
    padding-bottom: 15px;
}

.feature-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
    transition: all 0.4s ease;
}

.feature-card:hover h3::after {
    width: 70px;
    background-color: rgba(255, 255, 255, 0.8);
}

.feature-card p {
    color: var(--text-color);
    line-height: 1.7;
    transition: all 0.4s ease;
}

/* 特性部分的响应式设计 */
@media screen and (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .features {
        padding: 70px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-card {
        padding: 25px 20px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 15px;
    }
    
    .feature-icon i {
        font-size: 24px;
    }
    
    .feature-card h3 {
        font-size: 1.3rem;
        margin-bottom: 10px;
        padding-bottom: 10px;
    }
}

/* AOS动画效果样式 */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s, transform 0.8s;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* 特性卡片点击状态样式 */
.feature-card.clicked {
    transform: translateY(-15px) scale(1.05);
    box-shadow: 0 20px 40px rgba(var(--primary-rgb), 0.3);
}

.feature-card.clicked::before {
    height: 100%;
}

.feature-card.clicked h3,
.feature-card.clicked p {
    color: white;
}

.feature-card.clicked .feature-icon {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.feature-card.clicked .feature-icon i {
    color: var(--accent-color);
}

.feature-card.clicked h3::after {
    width: 70px;
    background-color: rgba(255, 255, 255, 0.8);
}

/* 特性卡片活跃状态额外效果 */
.feature-card.active {
    transition: all 0.3s ease;
}

/* 解决方案部分样式 */
.solutions {
    background-color: var(--light-bg);
    padding-top: 60px;
    padding-bottom: 80px;
    position: relative;
    overflow: hidden;
}

.solutions::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(var(--primary-rgb), 0.05) 0%, transparent 70%);
    z-index: 0;
}

.solutions::after {
    content: '';
    position: absolute;
    bottom: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle at center, rgba(var(--accent-rgb), 0.05) 0%, transparent 70%);
    z-index: 0;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.solution-card {
    background: white;
    border-radius: 15px;
    overflow: visible;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.5s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.solution-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(var(--primary-rgb), 0.1);
}

.solution-image {
    position: relative;
    overflow: hidden;
}

.solution-image .image-placeholder {
    height: 220px;
    transition: all 0.5s ease;
    transform-origin: center;
}

.solution-card:hover .solution-image .image-placeholder {
    transform: scale(1.1);
}

.solution-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(var(--primary-rgb), 0.8), transparent);
    z-index: 1;
    opacity: 0.8;
    transition: all 0.5s ease;
}

.solution-card:hover .solution-image::after {
    height: 70%;
    opacity: 0.9;
}

.solution-content {
    padding: 30px;
    background: white;
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.solution-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 15px;
    transition: all 0.3s ease;
}

.solution-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-color);
    transition: all 0.5s ease;
}

.solution-card:hover .solution-content h3::after {
    width: 80px;
}

.solution-content p {
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.7;
    flex: 1;
}

.solution-content a {
    align-self: flex-start;
    color: var(--accent-color);
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    position: relative;
    padding-bottom: 5px;
}

.solution-content a::after {
    display: none;
}

.solution-card:hover .solution-content a::after {
    width: 100%;
}

.solution-card:hover .solution-content a {
    color: var(--primary-color);
}

.solution-icon {
    position: absolute;
    top: -25px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(var(--accent-rgb), 0.3);
    z-index: 3;
    transition: all 0.5s ease;
}

.solution-card:hover .solution-icon {
    transform: rotate(360deg);
}

.solution-icon i {
    color: var(--dark-bg);
    font-size: 1.2rem;
}

/* 解决方案响应式设计 */
@media screen and (max-width: 992px) {
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .solutions {
        padding: 70px 0;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .solution-image .image-placeholder {
        height: 180px;
    }
    
    .solution-content {
        padding: 25px;
    }
    
    .solution-content h3 {
        font-size: 1.3rem;
    }
}

/* 解决方案详情的滑入动画 */
.solution-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.5s ease;
    padding: 0 30px;
    background: rgba(var(--primary-rgb), 0.02);
    border-top: 0px solid rgba(var(--primary-rgb), 0.1);
}

.solution-card.expanded .solution-detail {
    max-height: 300px;
    padding: 20px 30px;
    border-top: 1px solid rgba(var(--primary-rgb), 0.1);
}

.solution-features {
    list-style: none;
    margin-bottom: 15px;
}

.solution-features li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
    color: var(--text-color);
}

.solution-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* AOS动画效果 */
[data-aos].solution-card {
    transition-duration: 0.8s;
}

/* 解决方案卡片的悬停效果 */
.solution-card.hovered {
    box-shadow: 0 25px 50px rgba(var(--primary-rgb), 0.15);
}

/* 解决方案内容收起/展开按钮样式 */
.solution-toggle {
    position: relative;
    padding-right: 25px;
}

.solution-toggle::before,
.solution-toggle::after {
    display: none !important;
}

/* 改进解决方案卡片视觉效果 */
.solution-image .image-placeholder {
    position: relative;
    overflow: hidden;
}

.solution-image .image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.1), 
        transparent);
    transition: all 1s ease;
    z-index: 2;
}

.solution-card:hover .solution-image .image-placeholder::before {
    left: 100%;
}

/* 为解决方案图标添加脉冲动画 */
@keyframes solutionIconPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(var(--accent-rgb), 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0);
    }
}

.solution-icon {
    animation: solutionIconPulse 2s infinite;
}

.solution-card:hover .solution-icon {
    animation: solutionIconPulse 1s infinite;
}

/* 添加平滑的过渡效果 */
.solution-card,
.solution-image,
.solution-content,
.solution-icon,
.solution-detail {
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}