/* ===================================
   舜简科技官方网站 - 主样式表
   =================================== */

/* CSS 变量定义 - 暗黑主题 */
:root {
    /* 主色调 - 紫蓝色系 */
    --primary-color: #7c3aed;
    --primary-dark: #5b21b6;
    --primary-light: #a78bfa;
    --primary-glow: rgba(124, 58, 237, 0.4);
    
    /* 次要色调 - 青色系 */
    --secondary-color: #06b6d4;
    --secondary-dark: #0891b2;
    --secondary-glow: rgba(6, 182, 212, 0.4);
    
    /* 文字颜色 */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-light: #ffffff;
    
    /* 背景颜色 */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-light: #1e293b;
    
    /* 边框和分割线 */
    --border-color: #334155;
    --border-glow: rgba(124, 58, 237, 0.3);
    
    /* 阴影 */
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px var(--primary-glow);
    --shadow-hover: 0 0 30px var(--primary-glow), 0 10px 30px rgba(0, 0, 0, 0.5);
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-card: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(ellipse at top, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
}

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

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

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

/* ===================================
   头部导航
   =================================== */
.site-header {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    transition: all 0.3s ease;
}

.logo a:hover {
    filter: drop-shadow(0 0 20px var(--primary-glow));
    transform: scale(1.02);
}

.logo img {
    height: 45px;
    margin-right: 12px;
    filter: drop-shadow(0 0 10px var(--primary-glow));
    transition: all 0.3s ease;
}

.logo a:hover img {
    filter: drop-shadow(0 0 15px var(--primary-glow)) drop-shadow(0 0 25px var(--secondary-glow));
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-light);
    background: rgba(124, 58, 237, 0.2);
    box-shadow: 0 0 15px var(--primary-glow);
}

.main-nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.main-nav a:hover::before,
.main-nav a.active::before {
    width: 80%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 移动端菜单展开样式 */
.main-nav.mobile-open {
    animation: slideDown 0.3s ease;
}

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

/* ===================================
   按钮样式
   =================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow), 0 0 30px var(--primary-glow);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

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

.btn-outline:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: var(--primary-light);
    color: var(--text-light);
    box-shadow: 0 0 15px var(--primary-glow);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.ml-3 {
    margin-left: 1rem;
}

/* ===================================
   Banner 区域
   =================================== */
.hero-banner {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: var(--gradient-dark);
    color: var(--text-light);
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(124, 58, 237, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.3) 0%, transparent 50%);
    animation: glow 8s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('/static/images/banner-bg.jpg') center/cover;
    opacity: 0.15;
    mix-blend-mode: overlay;
}

.banner-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.banner-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 0 20px var(--primary-glow));
}

.banner-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    color: var(--text-secondary);
}

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

/* ===================================
    Section 通用样式
   =================================== */
.section {
    padding: 5rem 0;
    position: relative;
}

.bg-light {
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.text-center {
    text-align: center;
}

.mt-5 {
    margin-top: 3rem;
}

.mb-5 {
    margin-bottom: 3rem;
}

/* ===================================
   产品特性展示
   =================================== */
.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-card);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.feature-item:hover::before {
    opacity: 0.5;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.feature-item p {
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* ===================================
   视频展示
   =================================== */
.video-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

video {
    width: 100%;
    display: block;
}

/* ===================================
   案例展示
   =================================== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.case-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    filter: brightness(0.9);
}

.case-info {
    padding: 1.5rem;
}

.case-info h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.case-company, .case-industry {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===================================
   CTA 行动号召
   =================================== */
.cta-section {
    background: var(--gradient-primary);
    color: var(--text-light);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

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

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* ===================================
   页脚
   =================================== */
.site-footer {
    background: var(--bg-darker);
    color: var(--text-secondary);
    padding: 3rem 0 1rem;
    border-top: 1px solid var(--border-color);
}

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

.footer-section h3, .footer-section h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section p {
    margin-bottom: 0.5rem;
    opacity: 0.8;
    color: var(--text-secondary);
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-light);
    text-decoration: none;
    text-shadow: 0 0 8px var(--primary-glow);
}

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

.footer-bottom p {
    margin-bottom: 0.5rem;
    opacity: 0.6;
    color: var(--text-muted);
}

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

.social-icon {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.social-icon:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: var(--primary-color);
    color: var(--primary-light);
    box-shadow: 0 0 10px var(--primary-glow);
}

/* ===================================
   在线客服悬浮
   =================================== */
.online-service {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 999;
}

.service-item {
    background: var(--bg-card);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.service-item:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
    color: var(--text-light);
}

.service-item .icon {
    font-size: 1.2rem;
}

/* ===================================
   响应式设计
   =================================== */
@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .banner-title {
        font-size: 2rem;
    }
    
    .banner-subtitle {
        font-size: 1.2rem;
    }
    
    .banner-actions {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   新增：页面加载动画和消息提示
   =================================== */

/* 页面加载动画 */
#page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

#page-loader.hide {
    opacity: 0;
    pointer-events: none;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

/* 消息提示 */
.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 24px;
    border-radius: 8px;
    color: #fff;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    border: 1px solid transparent;
    z-index: 10000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
}

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

.message.info {
    background: rgba(124, 58, 237, 0.9);
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--primary-glow);
}

.message.success {
    background: rgba(16, 185, 129, 0.9);
    border-color: #10b981;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
}

.message.error {
    background: rgba(239, 68, 68, 0.9);
    border-color: #ef4444;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
}

.message.warning {
    background: rgba(245, 158, 11, 0.9);
    border-color: #f59e0b;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
}

/* ===================================
   软件架构区域样式
   =================================== */

.software-architecture {
    padding: 80px 0;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
}

.architecture-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    margin-top: 40px;
}

.arch-item {
    flex: 1;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.arch-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.arch-item.highlight {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    box-shadow: 0 0 30px var(--primary-glow);
}

.arch-item.highlight .feature-list li {
    color: rgba(255,255,255,0.9);
}

.arch-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.arch-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary-light);
}

.arch-item.highlight h3 {
    color: #fff;
}

.arch-item p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.arch-divider {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary-color);
    padding: 20px;
    text-shadow: 0 0 10px var(--primary-glow);
}

.arch-note {
    margin-top: 40px;
    padding: 24px;
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid #f59e0b;
    border-radius: 8px;
    color: var(--text-secondary);
}

.arch-note p {
    margin: 0;
    line-height: 1.8;
}

.arch-note strong {
    color: #fbbf24;
}

/* 系统要求高亮 */
.system-requirements {
    margin-top: 15px;
    padding: 12px 20px;
    background: rgba(124, 58, 237, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(124, 58, 237, 0.3);
    color: var(--primary-light);
    font-size: 14px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .architecture-content {
        flex-direction: column;
    }
    
    .arch-divider {
        transform: rotate(90deg);
        padding: 10px;
    }
}

/* ===================================
   下载页面样式
   =================================== */

.download-hero {
    padding: 100px 0;
    background: var(--gradient-dark);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.download-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 50%, rgba(124, 58, 237, 0.25) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(6, 182, 212, 0.25) 0%, transparent 50%);
}

.download-header {
    position: relative;
    z-index: 1;
}

.download-header h1 {
    font-size: 48px;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.version-badge {
    display: inline-block;
    background: rgba(124, 58, 237, 0.2);
    border: 1px solid var(--primary-color);
    padding: 12px 24px;
    border-radius: 30px;
    margin-bottom: 30px;
}

.version-number {
    font-size: 24px;
    font-weight: bold;
    margin-right: 15px;
    color: var(--primary-light);
}

.version-date {
    font-size: 14px;
    opacity: 0.9;
    color: var(--text-secondary);
}

.btn-xl {
    padding: 18px 48px;
    font-size: 20px;
    border-radius: 50px;
}

.file-info {
    margin-top: 15px;
    font-size: 14px;
    opacity: 0.9;
    color: var(--text-secondary);
}

.system-requirements-box {
    margin-top: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: 12px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.system-requirements-box h4 {
    margin-bottom: 15px;
    font-size: 18px;
    color: var(--text-primary);
}

.req-list {
    list-style: none;
    padding: 0;
}

.req-list li {
    padding: 8px 0;
    font-size: 15px;
    color: var(--text-secondary);
}

.note {
    margin-top: 15px;
    padding: 12px;
    background: rgba(245, 158, 11, 0.1);
    border-left: 3px solid #f59e0b;
    border-radius: 4px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* 版本时间线 */
.version-timeline {
    max-width: 900px;
    margin: 40px auto;
}

.version-item {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.version-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.version-item.latest::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--gradient-primary);
}

.version-marker {
    margin-bottom: 20px;
}

.version-marker h3 {
    display: inline-block;
    margin-right: 15px;
    color: var(--primary-light);
}

.version-marker .date {
    color: var(--text-muted);
    font-size: 14px;
}

.badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    margin-right: 10px;
}

.version-content h4 {
    margin: 20px 0 10px 0;
    color: var(--primary-light);
}

.version-content ul {
    list-style: none;
    padding-left: 0;
}

.version-content li {
    padding: 6px 0;
    padding-left: 24px;
    position: relative;
    color: var(--text-secondary);
}

.version-content li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 18px;
    line-height: 1.6;
}

/* 软件概况网格 */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.overview-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.overview-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.overview-item .icon {
    font-size: 48px;
    margin-bottom: 15px;
}

/* 视频区域 */
.video-section {
    margin-top: 60px;
    text-align: center;
}

.video-container {
    max-width: 800px;
    margin: 30px auto;
}

.video-placeholder {
    aspect-ratio: 16/9;
    background: var(--gradient-dark);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.video-placeholder:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.play-icon {
    width: 80px;
    height: 80px;
    background: rgba(124, 58, 237, 0.3);
    border: 2px solid var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary-light);
    margin-bottom: 15px;
}

.duration {
    margin-top: 15px;
    font-size: 14px;
    opacity: 0.8;
    color: var(--text-secondary);
}

.video-desc {
    color: var(--text-muted);
    font-size: 14px;
}

/* 联系方式 */
.contact-methods {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.contact-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-glow);
}

.contact-item .icon {
    font-size: 24px;
}

/* ===================================
   公司介绍页面样式
   =================================== */

.company-banner {
    padding: 80px 0;
    background: var(--gradient-dark);
    color: var(--text-light);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.company-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(124, 58, 237, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.3) 0%, transparent 50%);
}

.company-banner h1 {
    font-size: 48px;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 20px;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    color: var(--text-secondary);
}

/* 现代时间线 */
.timeline-modern {
    max-width: 800px;
    margin: 40px auto;
    position: relative;
}

.timeline-modern::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: 20px;
    top: 0;
    width: 24px;
    height: 24px;
    background: var(--bg-card);
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 10px var(--primary-glow);
}

.timeline-dot.highlight {
    background: var(--gradient-primary);
    border-color: transparent;
}

.year-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: #fff;
    padding: 6px 16px;
    border-radius: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.timeline-content h3 {
    margin-bottom: 10px;
    color: var(--primary-light);
}

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

/* ===================================
   功能定制页面样式
   =================================== */

.custom-banner {
    padding: 100px 0;
    background: var(--gradient-dark);
    color: var(--text-light);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.custom-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(124, 58, 237, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.3) 0%, transparent 50%);
}

.custom-banner h1 {
    font-size: 48px;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.custom-intro-box {
    max-width: 900px;
    margin: 40px auto 0;
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* 流程时间线 */
.process-timeline {
    max-width: 1200px;
    margin: 60px auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.process-step {
    position: relative;
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.process-step:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3), 0 0 15px var(--primary-glow);
}

.step-icon {
    font-size: 48px;
    margin: 20px 0;
    text-align: center;
}

.step-content h3 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-light);
}

.step-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.step-list li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: var(--text-secondary);
}

.step-list li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

/* 案例展示 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-item {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.case-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: #fff;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 15px;
}

.case-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-light);
}

.case-features {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.case-features li {
    padding: 6px 0;
    padding-left: 24px;
    position: relative;
    color: var(--text-secondary);
}

.case-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.case-result {
    margin-top: 20px;
    padding: 15px;
    background: rgba(124, 58, 237, 0.1);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.result-label {
    font-weight: bold;
    color: var(--primary-light);
    margin-right: 8px;
}

.result-text {
    color: var(--text-secondary);
}

/* 服务范围 */
.scope-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.scope-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.scope-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 0 15px var(--primary-glow);
}

.scope-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.scope-item h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.scope-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 优势展示 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 60px;
}

.advantage-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.adv-number {
    font-size: 48px;
    font-weight: bold;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.advantage-item h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--primary-light);
}

.advantage-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* CTA 区域 */
.cta-box {
    max-width: 700px;
    margin: 0 auto;
    padding: 40px;
    background: var(--gradient-primary);
    border-radius: 12px;
    color: #fff;
    box-shadow: 0 0 40px var(--primary-glow);
}

.cta-box h3 {
    font-size: 28px;
    margin-bottom: 15px;
}

.cta-box p {
    font-size: 16px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .process-timeline {
        grid-template-columns: 1fr;
    }

    .cases-grid,
    .scope-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .contact-buttons {
        flex-direction: column;
    }
}

/* ===================================
   产品页面额外样式
   =================================== */

.product-banner {
    padding: 100px 0;
    background: var(--gradient-dark);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(124, 58, 237, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(6, 182, 212, 0.3) 0%, transparent 50%);
}

.product-header {
    position: relative;
    z-index: 1;
}

.product-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-header .tagline {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.download-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    display: inline-block;
}

.version-info {
    color: var(--text-muted);
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

/* 功能详解 */
.features-detail {
    padding: 80px 0;
}

.feature-block {
    display: flex;
    gap: 60px;
    margin-bottom: 80px;
    align-items: center;
}

.feature-block.reverse {
    flex-direction: row-reverse;
}

.feature-content {
    flex: 1;
}

.feature-icon-large {
    font-size: 64px;
    margin-bottom: 1.5rem;
}

.feature-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0 0.5rem 2rem;
    position: relative;
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.feature-image {
    flex: 1;
}

.feature-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.video-wrapper {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.video-wrapper video {
    width: 100%;
    display: block;
}

/* 适用场景 */
.scenarios {
    padding: 80px 0;
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.scenario-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.scenario-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

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

.scenario-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 下载区域 */
.download-section {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.download-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotate 20s linear infinite;
}

.download-content {
    position: relative;
    z-index: 1;
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.download-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-white {
    background: #fff;
    color: var(--primary-dark);
}

.btn-white:hover {
    background: #f8fafc;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.btn-outline-light {
    background: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

/* ===================================
   公司介绍页面额外样式
   =================================== */

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

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

.intro-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
    .feature-block,
    .feature-block.reverse {
        flex-direction: column;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
    }
    
    .product-header h1 {
        font-size: 2.5rem;
    }
    
    .download-buttons {
        flex-direction: column;
    }
}