/* AI风格变量定义 */
:root {
    /* 主色调 - 专业蓝色系 */
    --primary-color: #00d4ff;
    --primary-dark: #0056b8;
    --secondary-color: #64ffda;
    --accent-color: #ffffff;
    --highlight-color: #00a8ff;
    
    /* 渐变色 - 去掉粉色，采用蓝色渐变 */
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0078d4 50%, #004c99 100%);
    --gradient-secondary: linear-gradient(135deg, #64ffda 0%, #00d4ff 50%, #0078d4 100%);
    --gradient-accent: linear-gradient(135deg, #ffffff 0%, #e6f3ff 50%, #cce7ff 100%);
    --gradient-dark: linear-gradient(135deg, #0a0f1c 0%, #1a1f2e 50%, #2a2f3e 100%);
    
    /* 背景色 - 更深更专业 */
    --bg-primary: #0a0f1c;
    --bg-secondary: #1a1f2e;
    --bg-tertiary: #2a2f3e;
    --bg-card: rgba(26, 31, 46, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.08);
    --bg-glass-strong: rgba(255, 255, 255, 0.12);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: #b8c5d4;
    --text-muted: #8a95aa;
    --text-accent: #00d4ff;
    
    /* 阴影和光晕 - 更柔和的蓝色光效 */
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glass: 0 8px 32px rgba(0, 120, 212, 0.1);
    --glow-primary: 0 0 25px rgba(0, 212, 255, 0.3);
    --glow-secondary: 0 0 25px rgba(100, 255, 218, 0.3);
    
    /* 边框颜色 */
    --border-primary: rgba(0, 212, 255, 0.3);
    --border-secondary: rgba(100, 255, 218, 0.2);
    --border-glass: rgba(255, 255, 255, 0.15);
    
    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* 间距 */
    --container-max-width: 1200px;
    --section-padding: 100px 0;
    --card-border-radius: 20px;
    
    /* 磨砂玻璃效果 */
    --glass-blur: blur(20px);
    --glass-blur-strong: blur(30px);
}

/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

/* 防止横向溢出 */
html, body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* 容器 */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 确保所有主要容器不会横向溢出 */
.hero-container,
.nav-container,
.contact-content,
.footer-content {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* 渐变文字效果 */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 按钮样式 */
.btn-primary {
    position: relative;
    background: var(--gradient-primary);
    border: none;
    padding: 16px 32px;
    border-radius: 50px;
    color: white;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.glow-btn {
    position: relative;
}

.btn-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    border-radius: 50px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.glow-btn:hover .btn-glow {
    opacity: 0.3;
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.05); opacity: 0.5; }
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
    padding: 14px 30px;
    border-radius: 50px;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    box-shadow: var(--glow-primary);
}

.full-width {
    width: 100%;
}

/* 粒子背景 */
#particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, rgba(100, 255, 218, 0.06) 0%, transparent 60%),
        radial-gradient(circle at 40% 40%, rgba(0, 120, 212, 0.05) 0%, transparent 60%);
    animation: float-bg 25s ease-in-out infinite;
}

@keyframes float-bg {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(1deg); }
    66% { transform: translateY(5px) rotate(-1deg); }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 15, 28, 0.85);
    backdrop-filter: var(--glass-blur-strong);
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
}

.logo-icon {
    font-size: 28px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 10px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.contact-btn {
    background: var(--gradient-primary);
    padding: 12px 24px !important;
    border-radius: 25px;
    color: white !important;
}

.contact-btn::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    position: relative;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 5px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

.hero-visual {
    position: relative;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 20px;
    text-align: center;
    animation: float-card 6s ease-in-out infinite;
    box-shadow: var(--shadow-glass);
}

.floating-card:nth-child(1) {
    top: 10%;
    left: 20%;
    animation-delay: 0s;
}

.floating-card:nth-child(2) {
    top: 20%;
    right: 10%;
    animation-delay: 1.5s;
}

.floating-card:nth-child(3) {
    bottom: 30%;
    left: 10%;
    animation-delay: 3s;
}

.floating-card:nth-child(4) {
    bottom: 10%;
    right: 20%;
    animation-delay: 4.5s;
}

@keyframes float-card {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-15px) rotate(1deg); }
    50% { transform: translateY(-10px) rotate(0deg); }
    75% { transform: translateY(-20px) rotate(-1deg); }
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.card-text {
    font-weight: 600;
    color: var(--text-primary);
}

/* 章节通用样式 */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

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

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.value-props {
    display: flex;
    gap: 30px;
}

.value-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border-radius: var(--card-border-radius);
    border: 1px solid var(--border-glass);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glass);
}

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

.value-icon {
    font-size: 2rem;
}

.tech-orbit {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
}

.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    z-index: 3;
}

.orbit-ring {
    position: absolute;
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.ring-1 {
    width: 160px;
    height: 160px;
    top: 120px;
    left: 120px;
}

.ring-2 {
    width: 240px;
    height: 240px;
    top: 80px;
    left: 80px;
    animation-duration: 30s;
    animation-direction: reverse;
}

.ring-3 {
    width: 320px;
    height: 320px;
    top: 40px;
    left: 40px;
    animation-duration: 40s;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.orbit-item {
    position: absolute;
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    animation: counter-rotate 20s linear infinite;
    box-shadow: var(--shadow-glass);
}

.ring-1 .orbit-item {
    animation-duration: 20s;
}

.ring-2 .orbit-item {
    animation-duration: 30s;
    animation-direction: reverse;
}

.ring-3 .orbit-item {
    animation-duration: 40s;
}

@keyframes counter-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

.ring-1 .orbit-item:nth-child(1) {
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.ring-1 .orbit-item:nth-child(2) {
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.ring-2 .orbit-item:nth-child(1) {
    top: -15px;
    left: 30%;
}

.ring-2 .orbit-item:nth-child(2) {
    right: -15px;
    top: 50%;
    transform: translateY(-50%);
}

.ring-2 .orbit-item:nth-child(3) {
    bottom: -15px;
    right: 30%;
}

.ring-3 .orbit-item:nth-child(1) {
    top: -15px;
    left: 20%;
}

.ring-3 .orbit-item:nth-child(2) {
    top: 20%;
    right: -15px;
}

.ring-3 .orbit-item:nth-child(3) {
    bottom: -15px;
    right: 20%;
}

/* 服务内容 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glass);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s;
}

.service-card:hover::before {
    left: 100%;
}

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

.service-card.featured {
    border-color: var(--secondary-color);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(100, 255, 218, 0.08));
    box-shadow: var(--shadow-glow);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.service-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-features {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-tag {
    background: rgba(0, 212, 255, 0.15);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

/* 技术能力 */
.tech-stack {
    background: var(--bg-secondary);
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.tech-category {
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 30px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glass);
}

.tech-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.tech-category.highlight {
    border-color: var(--secondary-color);
    background: linear-gradient(135deg, rgba(100, 255, 218, 0.1), rgba(0, 212, 255, 0.08));
    box-shadow: var(--glow-secondary);
}

.tech-category-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.tech-item {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tech-item:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
}

.tech-highlight-desc {
    color: var(--accent-color);
    font-style: italic;
    font-size: 0.9rem;
    margin-top: 10px;
}

/* 应用场景 */
.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.app-card {
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glass);
}

.app-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.app-card:hover::after {
    transform: scaleX(1);
}

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

.app-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.app-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.app-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 案例展示 */
.cases {
    background: var(--bg-secondary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.cases-grid .case-card.extra-case {
    display: none;
}

.cases-grid.show-all .case-card.extra-case {
    display: block;
}

.case-card {
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 30px;
    transition: all 0.3s ease;
    position: relative;
    box-shadow: var(--shadow-glass);
}

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

.case-card.featured {
    border-color: var(--secondary-color);
    background: linear-gradient(135deg, rgba(100, 255, 218, 0.1), rgba(0, 212, 255, 0.08));
    box-shadow: var(--glow-secondary);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
    gap: 20px;
}

.case-title {
    font-size: 1.4rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.case-tag {
    background: rgba(0, 212, 255, 0.15);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.case-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.case-features {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.feature-item {
    background: rgba(100, 255, 218, 0.15);
    color: var(--secondary-color);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(100, 255, 218, 0.3);
}

.case-actions {
    margin-top: 20px;
    display: flex;
    justify-content: flex-start;
}

.case-actions .case-gallery-btn {
    min-width: 150px;
}

.cases-toggle-wrapper {
    margin-top: 30px;
    text-align: center;
}
.cases-note {
    font-size: 0.95rem;
    margin-bottom: 15px;
    color: var(--text-secondary);
    display: none;
}

.cases-toggle-btn {
    min-width: 180px;
}

.cases-toggle-btn.active {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

/* 案例画廊 */
body.modal-open {
    overflow: hidden;
}

.gallery-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
}

.gallery-modal.open {
    display: block;
}

.gallery-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 15, 28, 0.75);
    backdrop-filter: blur(12px);
}

.gallery-dialog {
    position: relative;
    max-width: 900px;
    margin: 60px auto;
    background: rgba(13, 18, 32, 0.95);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 1;
}

.gallery-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.gallery-close:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: rotate(90deg);
}

.gallery-image-wrapper {
    position: relative;
    width: 100%;
    min-height: 340px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.gallery-image {
    max-width: 100%;
    max-height: 520px;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
    display: none;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.gallery-placeholder {
    color: var(--text-secondary);
    font-size: 1rem;
    letter-spacing: 0.5px;
}

.gallery-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.gallery-nav {
    border: none;
    background: rgba(0, 212, 255, 0.15);
    color: var(--primary-color);
    padding: 10px 22px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.gallery-nav:hover {
    background: rgba(0, 212, 255, 0.25);
    box-shadow: 0 0 25px rgba(0, 212, 255, 0.3);
}

.gallery-counter {
    color: var(--text-secondary);
    font-size: 0.95rem;
    letter-spacing: 1px;
}

.gallery-caption {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* 合作流程 */
.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}


.process-step {
    display: flex;
    align-items: center;
    margin-bottom: 50px;
    position: relative;
    z-index: 3;
}

.process-step:nth-child(even) {
    flex-direction: row-reverse;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    position: relative;
    z-index: 2;
    margin: 0 40px;
}

.step-content {
    flex: 1;
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 25px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glass);
    position: relative;
    z-index: 2;
}

.step-content:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
    transform: scale(1.02);
}

.step-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.step-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 售后保障 */
.guarantee {
    background: var(--bg-secondary);
}

.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.guarantee-card {
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    box-shadow: var(--shadow-glass);
}

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

.guarantee-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.guarantee-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.guarantee-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 联系我们 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: stretch;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
    height: 100%;
}

.contact-card {
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glass);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

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

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.contact-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin: 4px 0;
    line-height: 1.5;
}

.contact-form {
    background: var(--bg-glass-strong);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--card-border-radius);
    padding: 40px;
    box-shadow: var(--shadow-glass);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.form {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.form-group {
    margin-bottom: 20px;
}

.form-group.textarea-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-group.textarea-group textarea {
    flex: 1;
    min-height: 120px;
    resize: vertical;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 15px;
    color: var(--text-primary);
    font-size: 16px;
    transition: all 0.3s ease;
    backdrop-filter: var(--glass-blur);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid rgba(0, 245, 255, 0.2);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 245, 255, 0.1);
    color: var(--text-muted);
}

@media (min-width: 850px) {
    .hero-visual {
        height: 500px;
    }
}
/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container,
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
        align-items: start;
    }
    
    .contact-info {
        height: auto;
    }
    
    .contact-form {
        height: auto;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .tech-orbit {
        width: 300px;
        height: 300px;
    }
    
    .ring-1 {
        width: 120px;
        height: 120px;
        top: 90px;
        left: 90px;
    }
    
    .ring-2 {
        width: 180px;
        height: 180px;
        top: 60px;
        left: 60px;
    }
    
    .ring-3 {
        width: 240px;
        height: 240px;
        top: 30px;
        left: 30px;
    }
}

@media (max-width: 950px) {
    .nav-menu {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 0.9rem;
        padding: 8px 0;
    }
    
    .contact-btn {
        padding: 10px 20px !important;
        font-size: 0.9rem;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
    
    .hero-stats {
        gap: 25px;
    }
}

@media (max-width: 850px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .floating-elements {
        position: static;
        height: auto;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
        padding: 20px;
    }
    
    .floating-card {
        position: static;
        animation: none;
        transform: none;
        background: var(--bg-glass-strong);
        backdrop-filter: var(--glass-blur);
        border: 1px solid var(--border-glass);
        border-radius: 12px;
        padding: 15px;
        text-align: center;
        box-shadow: var(--shadow-glass);
        transition: all 0.3s ease;
    }
    
    .floating-card:hover {
        transform: translateY(-3px);
        border-color: var(--primary-color);
        box-shadow: var(--glow-primary);
    }
    
    .card-icon {
        font-size: 1.5rem;
        margin-bottom: 8px;
    }
    
    .card-text {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-primary);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid,
    .applications-grid,
    .cases-grid,
    .guarantee-grid {
        grid-template-columns: 1fr;
    }
    
    .value-props {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .process-step {
        flex-direction: row !important;
        padding-left: 80px;
        z-index: 3;
    }
    
    .step-number {
        position: absolute;
        left: 0;
        margin: 0;
        z-index: 4;
    }
    
    .tech-categories {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .case-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    /* 额外的移动端横向溢出保护 */
    * {
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .floating-elements {
        padding: 15px;
        gap: 10px;
    }
    
    .floating-card {
        min-width: 0;
        flex: 1;
    }
    
    /* 确保网格布局在小屏幕上不会溢出 */
    .services-grid,
    .applications-grid,
    .cases-grid,
    .guarantee-grid,
    .tech-categories {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    /* 确保所有文本不会导致横向溢出 */
    h1, h2, h3, h4, h5, h6, p, span, div {
        word-wrap: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* 选择文本样式 */
::selection {
    background: rgba(0, 212, 255, 0.3);
    color: var(--text-primary);
}

/* 平滑过渡 */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* 增强磨砂玻璃效果 */
.glass-enhanced {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
}

/* 高级发光效果 */
.glow-enhanced {
    position: relative;
}

.glow-enhanced::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glow-enhanced:hover::before {
    opacity: 0.7;
    animation: glow-pulse 2s infinite;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.02); }
}

/* 专业渐变边框效果 */
.gradient-border {
    position: relative;
    background: var(--bg-glass-strong);
    border-radius: var(--card-border-radius);
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: var(--gradient-primary);
    border-radius: inherit;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
}

/* 动态背景网格 */
.grid-bg {
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}

/* 3D卡片效果增强 */
.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.card-3d:hover {
    transform: rotateX(5deg) rotateY(5deg) translateZ(10px);
}

/* 霓虹文字效果 */
.neon-text {
    color: var(--primary-color);
    text-shadow: 
        0 0 5px var(--primary-color),
        0 0 10px var(--primary-color),
        0 0 15px var(--primary-color),
        0 0 20px var(--primary-color);
    animation: neon-flicker 2s infinite alternate;
}

@keyframes neon-flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}