/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 基于Logo的青色/蓝绿色 */
    --primary-color: #00D9D9;
    --primary-dark: #00A3A3;
    --primary-light: #4DFFFF;
    --secondary-color: #0099CC;
    --accent-color: #00FFB8;
    
    /* 中性色 */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-light: #8b8b9e;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #0f0f1e;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #00D9D9 0%, #0099CC 100%);
    --gradient-dark: linear-gradient(135deg, #0f0f1e 0%, #1a1a3e 100%);
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 217, 217, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 217, 217, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 217, 217, 0.2);
    
    /* 字体 - 优化回退策略 */
    --font-primary: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 100vw;
    background: rgba(15, 15, 30, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 217, 217, 0.1);
    z-index: 1000;
    transition: var(--transition);
    overflow: visible;
    box-sizing: border-box;
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0, 217, 217, 0.2);
    background: rgba(15, 15, 30, 0.98);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
    min-height: 80px;
    max-height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    flex-shrink: 0;
    max-width: 200px;
}

.logo img {
    height: 120px;
    width: auto;
    max-width: 150%;
    object-fit: contain;
    transition: var(--transition);
}

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

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    margin-left: 3rem;
    margin-right: 3rem;
}

.nav-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    white-space: nowrap;
}

.nav-link i {
    font-size: 0.75rem;
    transition: var(--transition);
}

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

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

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

.nav-dropdown {
    position: relative;
}

.nav-dropdown.active .nav-link i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(15, 15, 30, 0.98);
    border: 1px solid rgba(0, 217, 217, 0.2);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    min-width: 150px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
    margin-top: 0.5rem;
}

.nav-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: #ffffff;
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: rgba(0, 217, 217, 0.1);
    color: var(--primary-light);
}

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

.btn-nav {
    padding: 0.4rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-login {
    color: #ffffff;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-login:hover {
    color: var(--primary-light);
    border-color: var(--primary-light);
    background: rgba(0, 217, 217, 0.1);
}

.btn-trial {
    background: var(--gradient-primary);
    color: white;
    border-radius: 20px;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #ffffff;
    cursor: pointer;
    flex-shrink: 0;
    padding: 0.5rem;
    margin-left: 0.5rem;
}

/* ==================== 首页Banner ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    color: white;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-animation {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url(../images/homebackground.jpg) no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
    animation: pulseBackground 10s ease-in-out infinite;
}

@keyframes pulseBackground {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 2rem;
    animation: fadeInUp 1s ease-out;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ==================== 通用Section样式 ==================== */
section {
    padding: 5rem 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.title-divider {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto 1rem;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ==================== 理念愿景 ==================== */
.vision {
    background: var(--bg-secondary);
    padding: 5rem 0;
}

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

.vision-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
}

.vision-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.vision-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.vision-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.vision-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ==================== 团队介绍 ==================== */
.team {
    padding: 5rem 0;
}

.team-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

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

.team-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    border: 2px solid transparent;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.team-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(0, 217, 217, 0.1) 0%, rgba(0, 153, 204, 0.1) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
}

.team-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.team-pinyin {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
    font-style: normal;
    margin-left: 0.5rem;
}

.team-title {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.team-bio {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
    text-align: left;
}

/* ==================== 公司动态 ==================== */
.news {
    background: var(--bg-secondary);
    padding: 5rem 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.news-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    width: 100%;
    height: 200px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    margin-bottom: 1.5rem;
}

.news-date {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.news-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.news-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.news-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.news-link:hover {
    gap: 1rem;
}

/* ==================== 产品介绍 ==================== */
.products {
    padding: 5rem 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.product-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.product-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(0, 217, 217, 0.1) 0%, rgba(0, 153, 204, 0.1) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.product-card > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.product-features {
    list-style: none;
}

.product-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-features i {
    color: var(--primary-color);
}

/* ==================== 案例 ==================== */
.cases {
    background: var(--bg-secondary);
    padding: 5rem 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.case-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.case-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: 1.5rem;
}

.case-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.case-industry {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.case-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.case-results {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

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

.result-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.result-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ==================== 社交媒体 ==================== */
.social-media {
    padding: 5rem 0;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.social-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    border: 2px solid transparent;
}

.social-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.social-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
}

.social-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.social-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* ==================== 合作伙伴 ==================== */
.partners {
    background: var(--bg-secondary);
    padding: 5rem 0;
}

.partners-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

/* 合作伙伴轮播样式 */
.partners-carousel-wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
}

.partners-carousel {
    overflow: hidden;
    position: relative;
}

.partners-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    gap: 2rem;
}

.partner-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    flex: 0 0 calc(33.333% - 1.34rem);
    min-width: 0;
}

.partner-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.partner-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(0, 217, 217, 0.1) 0%, rgba(0, 153, 204, 0.1) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
}

.partner-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.partner-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 轮播控制按钮 */
.carousel-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    width: 100%;
    pointer-events: none;
    z-index: 10;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    pointer-events: auto;
    color: var(--primary-color);
    font-size: 1.2rem;
    margin: 0;
    padding: 0;
}

.carousel-prev {
    left: 1rem;
}

.carousel-next {
    right: 1rem;
}

.carousel-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 217, 217, 0.3);
}

.carousel-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* 轮播指示点 */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2.5rem;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(0, 217, 217, 0.3);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}

.carousel-dot:hover {
    background: rgba(0, 217, 217, 0.6);
    transform: scale(1.2);
}

.carousel-dot.active {
    background: var(--primary-color);
    width: 32px;
    border-radius: 6px;
}

/* ==================== 登录 ==================== */
.login {
    padding: 5rem 0;
    background: var(--bg-secondary);
}

.login-wrapper {
    max-width: 500px;
    margin: 0 auto;
}

.login-content {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.forgot-password:hover {
    text-decoration: underline;
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* ==================== 试用申请 ==================== */
.trial {
    padding: 5rem 0;
}

.trial-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.trial-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.required {
    color: #e74c3c;
}

.form-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* ==================== 服务 ==================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(0, 217, 217, 0.1) 0%, rgba(0, 153, 204, 0.1) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.service-features i {
    color: var(--primary-color);
}

/* ==================== 解决方案 ==================== */
.solutions {
    background: var(--bg-secondary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.solution-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    cursor: pointer;
}

.solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    background: var(--gradient-primary);
    color: white;
}

.solution-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, rgba(0, 217, 217, 0.1) 0%, rgba(0, 153, 204, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.solution-card:hover .solution-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.solution-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.solution-card:hover h3 {
    color: white;
}

.solution-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.solution-card:hover p {
    color: rgba(255, 255, 255, 0.9);
}

/* ==================== 联系我们 ==================== */
.contact-content {
    display: flex;
    justify-content: center;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
}

.contact-card {
    background: var(--gradient-primary);
    padding: 2rem;
    border-radius: 20px;
    color: white;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.contact-card p {
    font-size: 1rem;
    opacity: 0.95;
}


/* ==================== 页脚 ==================== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo img {
    height: 60px;
    margin-bottom: 1rem;
}

.footer-logo p {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-column ul li i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
        box-sizing: border-box;
    }
    
    .navbar {
        overflow: visible;
    }
    
    .nav-wrapper {
        padding: 0.75rem 0;
        min-width: 0;
        gap: 1rem;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .logo {
        max-width: 150px;
        min-width: 0;
        flex-shrink: 1;
        overflow: hidden;
    }
    
    .logo img {
        max-width: 135%;
        height: auto;
        max-height: 55px;
        width: auto;
    }
    
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
        flex-shrink: 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: rgba(15, 15, 30, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        padding: 2rem;
        margin: 0;
        transition: var(--transition);
        box-shadow: 0 4px 30px rgba(0, 217, 217, 0.2);
        overflow-y: auto;
        z-index: 1001;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: 1rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-dropdown {
        width: 100%;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(0, 0, 0, 0.2);
        border: none;
        margin-top: 0;
        padding: 0.5rem 0 0.5rem 1rem;
        display: none;
    }
    
    .nav-dropdown.active .dropdown-menu {
        display: block;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .vision-grid,
    .team-grid,
    .news-grid,
    .products-grid,
    .cases-grid,
    .social-grid,
    .partners-grid,
    .services-grid,
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    /* 合作伙伴轮播移动端样式 */
    .partners-carousel-wrapper {
        padding: 0 1rem;
    }
    
    .partner-card {
        flex: 0 0 100%;
    }
    
    .carousel-prev {
        left: 0.5rem;
    }
    
    .carousel-next {
        right: 0.5rem;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .carousel-btn:hover {
        transform: translateY(-50%) scale(1.1);
    }
    
    .carousel-btn:active {
        transform: translateY(-50%) scale(0.95);
    }
    
    .team-card {
        padding: 1.5rem;
    }
    
    .team-card h3 {
        font-size: 1.3rem;
    }
    
    .team-bio {
        font-size: 0.9rem;
        line-height: 1.7;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-logo img {
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .footer-logo img {
        height: 35px;
    }
}

/* ==================== 弹窗样式 ==================== */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: linear-gradient(135deg, rgba(15, 15, 30, 0.98) 0%, rgba(25, 25, 45, 0.98) 100%);
    border: 1px solid rgba(0, 217, 217, 0.3);
    border-radius: 12px;
    padding: 0;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 217, 217, 0.2);
    transform: scale(0.9) translateY(-20px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.modal.show .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(0, 217, 217, 0.2);
}

.modal-header h2 {
    color: #ffffff;
    font-size: 1.5rem;
    margin: 0;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    line-height: 1;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.modal-close:hover {
    color: var(--primary-color);
    background: rgba(0, 217, 217, 0.1);
    transform: rotate(90deg);
}

.modal-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    color: #ffffff;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group label i {
    margin-right: 0.5rem;
    color: var(--primary-color);
    width: 16px;
}

.form-group label .required {
    color: #ff6b6b;
    margin-left: 0.25rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(0, 217, 217, 0.1);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: #ff6b6b;
}

.form-group input:valid:not(:placeholder-shown) {
    border-color: rgba(0, 217, 217, 0.5);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    justify-content: center;
}

.form-actions .btn {
    flex: 1;
    max-width: 150px;
    font-size: 1.1rem;
    padding: 0.9rem 1.5rem;
    justify-content: center;
    text-align: center;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

/* 移动端弹窗样式 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 85vh;
        margin: 1rem;
    }
    
    .modal-header {
        padding: 1.25rem 1.5rem;
    }
    
    .modal-header h2 {
        font-size: 1.25rem;
    }
    
    .modal-form {
        padding: 1.5rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        max-width: 100%;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 100%;
        max-height: 100vh;
        border-radius: 0;
        margin: 0;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-form {
        padding: 1rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    .form-group input {
        padding: 0.75rem;
        font-size: 0.95rem;
    }
}

/* ==================== 自定义提醒组件样式 ==================== */
.toast-container {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 10001;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    min-width: 300px;
    max-width: 400px;
    background: linear-gradient(135deg, rgba(15, 15, 30, 0.98) 0%, rgba(25, 25, 45, 0.98) 100%);
    border: 1px solid rgba(0, 217, 217, 0.3);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 217, 217, 0.2);
    color: #ffffff;
    font-size: 0.95rem;
    line-height: 1.5;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    position: relative;
    overflow: hidden;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast.hide {
    opacity: 0;
    transform: translateX(400px);
}

.toast-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    border-radius: 50%;
}

.toast-content {
    flex: 1;
    word-wrap: break-word;
    word-break: break-word;
}

.toast-close {
    flex-shrink: 0;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: all 0.3s ease;
    border-radius: 4px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-close:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

/* 成功类型 */
.toast.success {
    border-color: rgba(76, 175, 80, 0.5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(76, 175, 80, 0.2);
}

.toast.success .toast-icon {
    background: rgba(76, 175, 80, 0.2);
    color: #4caf50;
}

/* 错误类型 */
.toast.error {
    border-color: rgba(244, 67, 54, 0.5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(244, 67, 54, 0.2);
}

.toast.error .toast-icon {
    background: rgba(244, 67, 54, 0.2);
    color: #f44336;
}

/* 警告类型 */
.toast.warning {
    border-color: rgba(255, 152, 0, 0.5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(255, 152, 0, 0.2);
}

.toast.warning .toast-icon {
    background: rgba(255, 152, 0, 0.2);
    color: #ff9800;
}

/* 信息类型 */
.toast.info {
    border-color: rgba(33, 150, 243, 0.5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(33, 150, 243, 0.2);
}

.toast.info .toast-icon {
    background: rgba(33, 150, 243, 0.2);
    color: #2196f3;
}

/* 进度条动画 */
.toast::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--primary-color);
    width: 100%;
    transform: scaleX(1);
    transform-origin: left;
    opacity: 0;
}

.toast.show::before {
    opacity: 1;
    animation: toastProgress var(--toast-duration, 3000ms) linear forwards;
}

.toast.success.show::before {
    background: #4caf50;
}

.toast.error.show::before {
    background: #f44336;
}

.toast.warning.show::before {
    background: #ff9800;
}

.toast.info.show::before {
    background: #2196f3;
}

@keyframes toastProgress {
    from {
        transform: scaleX(1);
    }
    to {
        transform: scaleX(0);
    }
}

/* 移动端样式 */
@media (max-width: 768px) {
    .toast-container {
        top: 80px;
        right: 10px;
        left: 10px;
    }
    
    .toast {
        min-width: auto;
        max-width: 100%;
        padding: 0.875rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .toast-icon {
        width: 20px;
        height: 20px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .toast-container {
        top: 70px;
        right: 5px;
        left: 5px;
    }
    
    .toast {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }
}