/* ========================================
   智软科技 - 企业官网样式表
   基于CMS功能设计文档开发
   ======================================== */

/* CSS变量定义 */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #0ea5e9;
    --accent: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --white: #ffffff;
    --black: #000000;
    
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
    --gradient-accent: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* 重置样式 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.23);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.logo i {
    color: var(--primary);
    font-size: 1.75rem;
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    padding: 0.5rem 0;
    position: relative;
}

.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);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-700);
    cursor: pointer;
}

/* Hero区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    top: -200px;
    right: -100px;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #0ea5e9, #10b981);
    bottom: -100px;
    left: -100px;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    top: 50%;
    left: 30%;
    opacity: 0.2;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

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

.hero-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

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

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    animation: float 3s ease-in-out infinite;
}

.hero-card i {
    font-size: 1.25rem;
    color: var(--primary);
}

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

.card-2 {
    top: 30%;
    right: 0;
    animation-delay: 0.5s;
}

.card-3 {
    bottom: 20%;
    left: 10%;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-illustration {
    width: 100%;
    max-width: 500px;
}

.code-window {
    background: var(--gray-900);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.window-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--gray-800);
}

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

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.window-body {
    padding: 1.5rem;
}

.window-body pre {
    margin: 0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: #e5e7eb;
    overflow-x: auto;
}

.window-body code {
    font-family: inherit;
}

/* 通用区域样式 */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 2rem;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
}

/* 功能特性 */
.features {
    background: var(--white);
}

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

.feature-card {
    padding: 2rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

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

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.feature-card > p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.feature-list i {
    color: var(--success);
    font-size: 0.875rem;
}

/* 解决方案 */
.solutions {
    background: var(--gray-50);
}

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

.solution-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.solution-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
}

.solution-image i {
    font-size: 4rem;
    color: var(--white);
    opacity: 0.9;
}

.solution-content {
    padding: 1.5rem;
}

.solution-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.solution-content > p {
    color: var(--gray-600);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.solution-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.solution-tags span {
    padding: 0.25rem 0.75rem;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 0.75rem;
    border-radius: 1rem;
}

.solution-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 500;
    font-size: 0.875rem;
}

.solution-link:hover {
    gap: 0.75rem;
}

/* 核心能力 */
.capabilities {
    background: var(--white);
}

.capabilities-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.capability-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.capability-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.capability-item:hover,
.capability-item.active {
    background: var(--white);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.capability-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.5;
}

.capability-item.active .capability-number {
    opacity: 1;
}

.capability-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.capability-info p {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.capability-showcase {
    position: relative;
    min-height: 400px;
}

.showcase-item {
    display: none;
    padding: 2.5rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    color: var(--white);
}

.showcase-item.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.showcase-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
}

.showcase-icon i {
    font-size: 2.5rem;
}

.showcase-item h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.showcase-item ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.showcase-item li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
}

.showcase-item li i {
    color: rgba(255, 255, 255, 0.8);
}

/* 客户评价 */
.testimonials {
    background: var(--gray-50);
}

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

.testimonial-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.testimonial-rating i {
    color: #fbbf24;
    font-size: 0.875rem;
}

.testimonial-content > p {
    color: var(--gray-600);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.author-avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.author-avatar i {
    color: var(--white);
    font-size: 1.25rem;
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.author-info span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* 联系我们 */
.contact {
    background: var(--white);
    padding: 100px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 1rem 0 1.5rem;
}

.contact-info > p {
    color: var(--gray-600);
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-method i {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    font-size: 1.25rem;
    border-radius: var(--radius-lg);
}

.contact-method span {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.contact-method strong {
    display: block;
    font-size: 1rem;
    color: var(--gray-900);
    font-weight: 600;
}

.contact-form-wrapper {
    background: var(--gray-50);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    color: var(--gray-900);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* 页脚 */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand > p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

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

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

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-size: 0.9375rem;
    transition: var(--transition);
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9375rem;
}

.footer-contact i {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding: 2rem 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
}

.footer-bottom a {
    color: var(--gray-400);
}

.footer-bottom a:hover {
    color: var(--white);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-image {
        order: 2;
        margin-top: 3rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .features-grid,
    .solutions-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .capabilities-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .capability-showcase {
        position: relative;
        min-height: 300px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-actions {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 1.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .solutions-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* 动画效果 */
@media (prefers-reduced-motion: no-preference) {
    .feature-card,
    .solution-card,
    .testimonial-card {
        opacity: 0;
        transform: translateY(30px);
        animation: slideUp 0.6s ease forwards;
    }
    
    .feature-card:nth-child(1) { animation-delay: 0.1s; }
    .feature-card:nth-child(2) { animation-delay: 0.2s; }
    .feature-card:nth-child(3) { animation-delay: 0.3s; }
    .feature-card:nth-child(4) { animation-delay: 0.4s; }
    .feature-card:nth-child(5) { animation-delay: 0.5s; }
    .feature-card:nth-child(6) { animation-delay: 0.6s; }
    
    @keyframes slideUp {
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}