/* ==================== 公共样式 ==================== */

/* 字体 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

/* CSS变量 */
:root {
    --primary-color: #F86D10;
    --primary-dark: #D85A00;
    --primary-light: #FF8533;
    --secondary-color: #FF9500;
    --accent-color: #FFB347;
    --orange-glow: rgba(248, 109, 16, 0.3);
    --light-bg: #FFFFFF;
    --light-bg-secondary: #FFF7F0;
    --light-card: #FFFFFF;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: rgba(248, 109, 16, 0.2);
    --gradient-primary: linear-gradient(135deg, #F86D10 0%, #FF9500 100%);
    --gradient-orange: linear-gradient(135deg, #F86D10 0%, #FFB347 100%);
    --gradient-light: linear-gradient(180deg, #FFFFFF 0%, #FFF7F0 100%);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --transition-default: all 0.3s ease;
}

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

/* 隐藏滚动条 */
::-webkit-scrollbar {
    display: none;
}
* {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 主内容区顶部间距 - 适配固定导航栏 */
.page-header,
.product-overview,
.solution-overview,
.core-functions,
.application-scenes,
.equipment-suggest {
    margin-top: 0;
}

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

ul {
    list-style: none;
}

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

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

/* 栅格系统 */
.grid {
    display: grid;
    gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ==================== 导航栏 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-default);
    box-shadow: 0 2px 20px rgba(248, 109, 16, 0.1);
}

/* 导航栏占位元素 - 适配固定导航栏 */
.header-placeholder {
    height: 80px;
    width: 100%;
    background: var(--primary-color);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    padding: 0 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.logo-img {
    height: 48px;
    width: auto;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-default);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-dark);
    background: rgba(248, 109, 16, 0.12);
}

/* 导航项容器 */
.nav-item {
    position: relative;
}

.nav-item .nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 下拉菜单 */
.has-dropdown {
    position: relative;
}

.has-dropdown .dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 200px;
    background: var(--light-card);
    border-radius: 16px;
    padding: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-link {
    display: block;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition-default);
}

.dropdown-link:hover {
    background: rgba(248, 109, 16, 0.1);
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.nav-cta {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 600;
    margin-left: 20px;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(248, 109, 16, 0.5);
    color: white;
    background: var(--gradient-primary);
}

/* 移动端菜单 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-default);
}

@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--light-bg);
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-link {
        width: 100%;
        text-align: center;
    }

    .nav-cta {
        margin: 10px 0 0 0;
        width: 100%;
        text-align: center;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--primary-color);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px;
}

.footer, .footer a, .footer p, .footer h4 {
    color: #FFFFFF !important;
}

.footer-links a:hover {
    color: #FFE4D4 !important;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

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

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.8;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
    transition: var(--transition-default);
}

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

/* 橙色装饰元素 */
.orange-accent {
    color: var(--primary-color) !important;
}

.orange-bg {
    background: var(--gradient-primary) !important;
}

.orange-glow {
    box-shadow: 0 0 40px rgba(248, 109, 16, 0.3);
}

.orange-border {
    border-color: var(--primary-color) !important;
}

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

/* 橙色标签 */
.tag-orange {
    background: rgba(248, 109, 16, 0.15);
    border: 1px solid rgba(248, 109, 16, 0.3);
    color: var(--primary-color);
}

.footer-contact p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom {
    padding-top: 40px;
    /* border-top: 1px solid var(--border-color); */
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    transition: var(--transition-default);
}

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

/* ==================== 通用组件 ==================== */

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-default);
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(248, 109, 16, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(248, 109, 16, 0.08);
    border-color: var(--primary-dark);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 16px;
}

/* 卡片 */
.card {
    background: var(--light-card);
    border-radius: 16px;
    padding: 30px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.card:hover {
    border-color: var(--primary-color);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(248, 109, 16, 0.2);
}

/* 标题组件 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(248, 109, 16, 0.15);
    border: 1px solid rgba(248, 109, 16, 0.3);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 0%, #94A3B8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 32px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
}

/* 页面标题 */
.page-header {
    padding: 80px 0;
    background: var(--primary-color);
    position: relative;
    overflow: hidden;
}

@media (max-width: 768px) {
    .page-header {
        padding: 60px 0;
    }
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.page-header .container {
    position: relative;
}

.page-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #FFFFFF;
}

@media (max-width: 768px) {
    .page-title {
        font-size: 36px;
    }
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
}

.breadcrumb a:hover {
    color: #FFFFFF;
}

.breadcrumb svg {
    width: 16px;
    height: 16px;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(60px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* 科技装饰 */
.tech-decoration {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(248, 109, 16, 0.15) 0%, transparent 70%);
    filter: blur(60px);
}

/* 网格背景 */
.grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(248, 109, 16, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(248, 109, 16, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* 工具类 */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.text-secondary-color { color: var(--secondary-color); }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.py-20 { padding-top: 80px; padding-bottom: 80px; }
.py-24 { padding-top: 96px; padding-bottom: 96px; }

/* ==================== CTA区域 - 白色背景 ==================== */
.cta-light {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
    background: #FFFFFF;
    text-align: center;
}

.cta-light .cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #FFF7F0 0%, #FFFFFF 50%, #FFF0E6 100%);
}

.cta-light .cta-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta-light .cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.4;
    color: var(--text-primary);
}

.cta-light .cta-content p {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-light .cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .cta-light .cta-content h2 {
        font-size: 32px;
    }
    
    .cta-light .cta-content p {
        font-size: 16px;
    }
}

/* ==================== 深色主题变量（案例详情页使用） ==================== */
:root {
    --dark-card: #1A2235;
    --dark-bg: #0A0E1A;
    --dark-bg-secondary: #0F1629;
}

/* ==================== 解决方案页面样式 ==================== */

/* 方案概述 */
.solution-overview {
    padding: 100px 0;
    background: var(--light-bg);
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

@media (max-width: 1024px) {
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

.overview-content .section-tag {
    margin-bottom: 20px;
}

.overview-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
    line-height: 1.3;
}

@media (max-width: 768px) {
    .overview-title {
        font-size: 32px;
    }
}

.overview-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.overview-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(248, 109, 16, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.feature-text h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

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

.overview-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #FFF7F0 0%, #FFE4D4 100%);
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    border: 2px dashed rgba(248, 109, 16, 0.3);
}

.image-placeholder.small {
    max-width: 100%;
    aspect-ratio: 16/10;
}

.placeholder-icon {
    width: 80px;
    height: 80px;
    background: rgba(248, 109, 16, 0.15);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
}

.image-placeholder span {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

/* 核心功能 */
.core-functions,
.core-tech {
    padding: 100px 0;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF7F0 100%);
}

.functions-grid,
.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .functions-grid,
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .functions-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }
}

.function-card,
.tech-card {
    background: var(--light-card);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.function-card:hover,
.tech-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(248, 109, 16, 0.15);
}

.function-icon,
.tech-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(248, 109, 16, 0.15) 0%, rgba(255, 149, 0, 0.1) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.function-icon svg,
.tech-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
}

.function-card h3,
.tech-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.function-card p,
.tech-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 适用场景 */
.application-scenes {
    padding: 100px 0;
    background: var(--light-bg);
}

.scenes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .scenes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.scene-card {
    background: var(--light-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.scene-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(248, 109, 16, 0.15);
}

.scene-image {
    padding: 20px;
}

.scene-content {
    padding: 0 24px 24px;
}

.scene-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.scene-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 设备配置建议 */
.equipment-suggest {
    padding: 100px 0;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF7F0 100%);
}

.suggest-table {
    background: var(--light-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.suggest-table table {
    width: 100%;
    border-collapse: collapse;
}

.suggest-table thead {
    background: var(--primary-color);
}

.suggest-table th {
    padding: 20px 24px;
    text-align: left;
    font-size: 15px;
    font-weight: 600;
    color: #FFFFFF;
}

.suggest-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-default);
}

.suggest-table tbody tr:hover {
    background: rgba(248, 109, 16, 0.05);
}

.suggest-table td {
    padding: 24px;
    font-size: 15px;
    color: var(--text-primary);
    vertical-align: top;
}

.suggest-table td small {
    font-size: 13px;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .suggest-table {
        overflow-x: auto;
    }
    
    .suggest-table table {
        min-width: 600px;
    }
}

/* CTA区域 - 橙色背景 */
.cta-section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
    background: var(--primary-color);
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.cta-section .container {
    position: relative;
}

.cta-section .cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta-section .cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.4;
    color: #FFFFFF;
}

.cta-section .cta-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-section .cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: #FFFFFF;
    color: var(--primary-color);
}

.cta-section .btn-primary:hover {
    background: #F0F0F0;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.cta-section .btn-secondary {
    background: transparent;
    color: #FFFFFF;
    border: 2px solid rgba(255, 255, 255, 0.6);
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #FFFFFF;
}

@media (max-width: 768px) {
    .cta-section .cta-content h2 {
        font-size: 32px;
    }

    .cta-section .cta-content p {
        font-size: 16px;
    }
}

/* ==================== 服务范围 section ==================== */
.service-section {
    padding: 100px 0;
    background: var(--light-bg);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.service-card {
    background: var(--light-card);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.service-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(248, 109, 16, 0.15);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(248, 109, 16, 0.15) 0%, rgba(255, 149, 0, 0.1) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.service-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.service-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-list li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
}

/* ==================== 开发流程 section ==================== */
.process-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF7F0 100%);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    position: relative;
}

@media (max-width: 1024px) {
    .process-timeline {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 20px;
    font-weight: 700;
    color: #FFFFFF;
}

.step-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

/* ==================== 技术优势 section ==================== */
.tech-advantage {
    padding: 100px 0;
    background: var(--light-bg);
}

/* ==================== 成功案例 section ==================== */
.cases-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF7F0 100%);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.case-card {
    background: var(--light-card);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.case-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(248, 109, 16, 0.15);
}

.case-logo {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(248, 109, 16, 0.15) 0%, rgba(255, 149, 0, 0.1) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.case-logo svg {
    width: 28px;
    height: 28px;
    color: var(--primary-color);
}

.case-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.case-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.case-tags span {
    padding: 4px 12px;
    background: rgba(248, 109, 16, 0.1);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
}

/* ==================== 产品概述 section ==================== */
.product-overview {
    padding: 100px 0;
    background: var(--light-bg);
}

/* ==================== 平台优势 section ==================== */
.advantage-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF7F0 100%);
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

@media (max-width: 1024px) {
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.advantage-card {
    background: var(--light-card);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    text-align: center;
}

.advantage-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(248, 109, 16, 0.15);
}

.advantage-number {
    width: 56px;
    height: 56px;
    background: rgba(79, 172, 254, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 16px;
    font-weight: 700;
    color: #4facfe;
    padding: 8px;
    box-sizing: border-box;
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.advantage-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== 服务套餐 section ==================== */
.pricing-section {
    padding: 100px 0;
    background: var(--light-bg);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: stretch;
}

@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
}

.pricing-card {
    background: var(--light-card);
    border-radius: 24px;
    padding: 40px 32px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(248, 109, 16, 0.2);
    transform: scale(1.05);
    position: relative;
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #FFFFFF;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.pricing-price {
    margin-bottom: 16px;
}

.pricing-price .currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
    vertical-align: top;
}

.pricing-price .amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.pricing-price .period {
    font-size: 14px;
    color: var(--text-muted);
}

.pricing-header > p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 32px 0;
    flex-grow: 1;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features svg {
    width: 18px;
    height: 18px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.btn-block {
    width: 100%;
    display: flex;
    justify-content: center;
}