/* ========================================
   瓦力锐派科技 - 大道至简风格样式
   设计理念：简约、空灵、禅意、留白
   ======================================== */

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

:root {
    /* 主色调 - 深空蓝，象征深邃与智慧 */
    --primary-color: #0a192f;
    --primary-dark: #020c1b;
    
    /* 强调色 - 青绿色，象征生机与灵动 */
    --secondary-color: #64ffda;
    --secondary-light: rgba(100, 255, 218, 0.1);
    --secondary-glow: rgba(100, 255, 218, 0.3);
    
    /* 辅助色 */
    --accent-color: #112240;
    --accent-light: #1d3a5c;
    
    /* 文字颜色 */
    --text-primary: #ccd6f6;
    --text-secondary: #8892b0;
    --text-muted: #5a6a8a;
    --white: #e6f1ff;
    
    /* 过渡动画 - 如水般流畅 */
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 阴影 - 轻柔如雾 */
    --shadow-sm: 0 2px 8px rgba(2, 12, 27, 0.3);
    --shadow-md: 0 4px 16px rgba(2, 12, 27, 0.4);
    --shadow-lg: 0 8px 32px rgba(2, 12, 27, 0.5);
    --shadow-glow: 0 0 20px rgba(100, 255, 218, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.8;
    color: var(--text-primary);
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    overflow-x: hidden;
    font-weight: 300;
    letter-spacing: 0.3px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

/* ========================================
   导航栏 - 轻盈如云
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    z-index: 1000;
    padding: 1.2rem 0;
    border-bottom: 1px solid rgba(100, 255, 218, 0.08);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: 0.8rem 0;
    background: rgba(10, 25, 47, 0.95);
    box-shadow: var(--shadow-md);
}

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

.logo a {
    display: block;
}

/* 导航栏Logo */
.navbar-logo {
    height: 36px;
    width: auto;
    transition: var(--transition-normal);
    display: block;
    opacity: 0.9;
}

.navbar-logo:hover {
    opacity: 1;
    transform: scale(1.03);
    filter: drop-shadow(0 0 12px var(--secondary-glow));
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
    padding: 0.3rem 0;
    opacity: 0.85;
}

.nav-links a:hover {
    color: var(--secondary-color);
    opacity: 1;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
    transition: var(--transition-normal);
}

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

/* 语言切换器 - 极简设计 */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 24px;
    padding-left: 24px;
    border-left: 1px solid rgba(100, 255, 218, 0.15);
}

.lang-switcher a {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 4px 10px;
    border-radius: 4px;
    transition: var(--transition-fast);
    font-weight: 400;
    opacity: 0.7;
}

.lang-switcher a:hover {
    color: var(--secondary-color);
    background: var(--secondary-light);
    opacity: 1;
}

.mobile-menu-btn {
    display: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
    color: var(--secondary-color);
}

/* ========================================
   Hero区域 - 空灵深远
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1.2rem;
    line-height: 1.15;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--white) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--secondary-color);
    margin-bottom: 1.8rem;
    font-weight: 400;
    opacity: 0.9;
    letter-spacing: 0.5px;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 2;
    max-width: 600px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.9rem 2.2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-normal);
    display: inline-block;
    text-align: center;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    border: 1.5px solid transparent;
}

.btn-primary {
    background: transparent;
    color: var(--secondary-color);
    border-color: var(--secondary-color);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(100, 255, 218, 0.2), transparent);
    transition: var(--transition-slow);
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: rgba(100, 255, 218, 0.3);
}

.btn-secondary:hover {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
    background: var(--secondary-light);
    transform: translateY(-2px);
}

/* Hero视觉区域 - 精致的同心圆设计 */
.hero-visual {
    position: relative;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 三层同心圆 - 呼吸缩放效果 */
.tech-circle {
    position: absolute;
    border-radius: 50%;
    border-style: solid;
}

/* 外层圆环 - 最亮最大 */
.circle-1 {
    width: 360px;
    height: 360px;
    border-width: 4px;
    border-color: rgba(100, 255, 218, 0.6);
    animation: breathe 4s ease-in-out infinite;
    opacity: 0.8;
    box-shadow: 0 0 15px rgba(100, 255, 218, 0.3), inset 0 0 15px rgba(100, 255, 218, 0.15);
}

/* 中层圆环 - 高亮度 */
.circle-2 {
    width: 280px;
    height: 280px;
    border-width: 3.5px;
    border-color: rgba(100, 255, 218, 0.5);
    animation: breathe 4s ease-in-out infinite 0.5s;
    opacity: 0.75;
    box-shadow: 0 0 12px rgba(100, 255, 218, 0.25), inset 0 0 12px rgba(100, 255, 218, 0.1);
}

/* 内层圆环 - 柔和发光 */
.circle-3 {
    width: 200px;
    height: 200px;
    border-width: 4px;
    border-color: rgba(100, 255, 218, 0.55);
    animation: breathe 4s ease-in-out infinite 1s;
    opacity: 0.75;
    box-shadow: 0 0 18px rgba(100, 255, 218, 0.35), inset 0 0 18px rgba(100, 255, 218, 0.15);
}

/* 呼吸动画 - 放大缩小的循环效果 */
@keyframes breathe {
    0%, 100% { 
        transform: scale(1); 
        opacity: 0.6;
    }
    50% { 
        transform: scale(1.08); 
        opacity: 0.85;
    }
}

/* 轨道装饰点 - 在圆环上运行的小光点 */
.orbit-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    background: radial-gradient(circle, #ffffff 0%, #64ffda 40%, rgba(100, 255, 218, 0.2) 70%);
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(100, 255, 218, 1), 0 0 30px rgba(100, 255, 218, 0.6), 0 0 45px rgba(100, 255, 218, 0.3);
}

.dot-1 {
    animation: orbit-1 15s linear infinite;
}

.dot-2 {
    animation: orbit-2 12s linear infinite reverse;
}

.dot-3 {
    animation: orbit-3 18s linear infinite;
}

@keyframes orbit-1 {
    from { 
        transform: rotate(0deg) translateX(180px) rotate(0deg);
    }
    to { 
        transform: rotate(360deg) translateX(180px) rotate(-360deg);
    }
}

@keyframes orbit-2 {
    from { 
        transform: rotate(0deg) translateX(140px) rotate(0deg);
    }
    to { 
        transform: rotate(360deg) translateX(140px) rotate(-360deg);
    }
}

@keyframes orbit-3 {
    from { 
        transform: rotate(0deg) translateX(100px) rotate(0deg);
    }
    to { 
        transform: rotate(360deg) translateX(100px) rotate(-360deg);
    }
}

/* 波浪效果容器 */
.wave-container {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 180px;
    overflow: hidden;
    opacity: 0.35;
    pointer-events: none;
}

.wave-svg {
    width: 100%;
    height: 100%;
}

.wave-path {
    fill: rgba(100, 255, 218, 0.12);
    animation: wave-move 10s ease-in-out infinite;
}

.wave-1 {
    animation-delay: 0s;
    fill: rgba(100, 255, 218, 0.12);
}

.wave-2 {
    animation-delay: -3s;
    fill: rgba(100, 255, 218, 0.08);
}

.wave-3 {
    animation-delay: -6s;
    fill: rgba(100, 255, 218, 0.06);
}

@keyframes wave-move {
    0%, 100% {
        transform: translateX(0) translateY(0);
    }
    50% {
        transform: translateX(-40px) translateY(-8px);
    }
}

/* 浮动粒子系统 */
.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background: radial-gradient(circle, rgba(100, 255, 218, 0.95) 0%, rgba(100, 255, 218, 0) 70%);
    border-radius: 50%;
    animation: float-up 7s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(100, 255, 218, 0.6);
}

.particle-1 {
    left: 15%;
    bottom: 15%;
    animation-delay: 0s;
    animation-duration: 6s;
}

.particle-2 {
    left: 35%;
    bottom: 25%;
    animation-delay: 0.8s;
    animation-duration: 7s;
}

.particle-3 {
    left: 55%;
    bottom: 20%;
    animation-delay: 1.6s;
    animation-duration: 6.5s;
}

.particle-4 {
    left: 70%;
    bottom: 30%;
    animation-delay: 2.4s;
    animation-duration: 7.5s;
}

.particle-5 {
    left: 25%;
    bottom: 35%;
    animation-delay: 3.2s;
    animation-duration: 6.8s;
}

.particle-6 {
    left: 80%;
    bottom: 18%;
    animation-delay: 4s;
    animation-duration: 7.2s;
}

.particle-7 {
    left: 45%;
    bottom: 28%;
    animation-delay: 1.2s;
    animation-duration: 6.3s;
}

.particle-8 {
    left: 90%;
    bottom: 22%;
    animation-delay: 2.8s;
    animation-duration: 7.8s;
}

@keyframes float-up {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-220px) scale(0.3);
        opacity: 0;
    }
}

/* ========================================
   通用Section样式 - 留白之美
   ======================================== */
section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: 2.8rem;
    color: var(--white);
    margin-bottom: 1.2rem;
    position: relative;
    display: inline-block;
    font-weight: 500;
    letter-spacing: -0.3px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    font-weight: 300;
    margin-top: 1.8rem;
    letter-spacing: 0.3px;
}

/* ========================================
   服务区域 - 修行之道
   ======================================== */
.services {
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--accent-color) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

/* 桌面端3个卡片均匀分布 */
@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: rgba(17, 34, 64, 0.5);
    padding: 3rem 2.5rem;
    border-radius: 12px;
    transition: var(--transition-normal);
    border: 1px solid rgba(100, 255, 218, 0.08);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
    opacity: 0;
    transition: var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(100, 255, 218, 0.2);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    background: rgba(17, 34, 64, 0.7);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    font-size: 3.2rem;
    color: var(--secondary-color);
    margin-bottom: 1.8rem;
    opacity: 0.9;
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    opacity: 1;
    transform: scale(1.05);
}

.service-card h3 {
    color: var(--white);
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
    font-weight: 500;
    letter-spacing: -0.2px;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    line-height: 1.9;
    font-weight: 300;
    font-size: 0.98rem;
}

.service-features {
    list-style: none;
    color: var(--text-secondary);
}

.service-features li {
    padding: 0.6rem 0;
    padding-left: 1.8rem;
    position: relative;
    font-size: 0.92rem;
    font-weight: 300;
}

.service-features li::before {
    content: '◦';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-size: 1.2rem;
    line-height: 1.4;
}

/* ========================================
   关于区域 - 技进乎道
   ======================================== */
.about {
    background: var(--accent-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 5rem;
    align-items: center;
}

.about-text h3 {
    color: var(--white);
    font-size: 2.2rem;
    margin-bottom: 1.8rem;
    font-weight: 500;
    letter-spacing: -0.3px;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    line-height: 2;
    font-weight: 300;
    font-size: 1rem;
    text-align: justify;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(100, 255, 218, 0.1);
}

.stat-item {
    text-align: center;
    transition: var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.6rem;
    line-height: 1;
    background: linear-gradient(135deg, var(--secondary-color), var(--white));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.5px;
}

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

.image-placeholder {
    width: 100%;
    height: 380px;
    background: linear-gradient(135deg, rgba(17, 34, 64, 0.8), rgba(10, 25, 47, 0.9));
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(100, 255, 218, 0.15);
    position: relative;
    overflow: hidden;
    padding: 20px;
}

.company-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition-normal);
    display: block;
}

.image-placeholder:hover .company-image {
    transform: scale(1.03);
}

/* ========================================
   技术区域 - 万物归一
   ======================================== */
.technology {
    background: linear-gradient(180deg, var(--accent-color) 0%, var(--primary-color) 100%);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

/* 桌面端6个技术分类显示为3x2 */
@media (min-width: 1024px) {
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.tech-category {
    background: rgba(10, 25, 47, 0.6);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    border: 1px solid rgba(100, 255, 218, 0.08);
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.tech-category:hover {
    border-color: rgba(100, 255, 218, 0.2);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.tech-category h3 {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: 1.8rem;
    padding-bottom: 1rem;
    border-bottom: 1.5px solid rgba(100, 255, 218, 0.2);
    font-weight: 500;
    letter-spacing: -0.2px;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.tech-category h3 i {
    color: var(--secondary-color);
    font-size: 1.3rem;
    opacity: 0.9;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
}

.tech-tag {
    background: var(--secondary-light);
    color: var(--secondary-color);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 0.88rem;
    transition: var(--transition-fast);
    border: 1px solid rgba(100, 255, 218, 0.15);
    font-weight: 400;
}

.tech-tag:hover {
    background: rgba(100, 255, 218, 0.2);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(100, 255, 218, 0.15);
}

/* ========================================
   联系区域 - 结缘同行
   ======================================== */
.contact {
    background: var(--primary-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 5rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.8rem;
    padding: 2rem;
    background: rgba(17, 34, 64, 0.5);
    border-radius: 12px;
    transition: var(--transition-normal);
    border: 1px solid rgba(100, 255, 218, 0.08);
    backdrop-filter: blur(10px);
}

.contact-item:hover {
    transform: translateX(8px);
    border-left: 3px solid var(--secondary-color);
    background: rgba(17, 34, 64, 0.7);
    box-shadow: var(--shadow-md);
}

.contact-item i {
    font-size: 2.2rem;
    color: var(--secondary-color);
    opacity: 0.9;
}

.contact-item h4 {
    color: var(--white);
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 1.1rem;
}

.contact-item p {
    color: var(--text-secondary);
    font-weight: 300;
}

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

.contact-qrcode h3 {
    color: var(--white);
    font-size: 1.6rem;
    margin-bottom: 2.5rem;
    font-weight: 500;
}

.qrcode-placeholder {
    width: 260px;
    height: 260px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(17, 34, 64, 0.8), rgba(10, 25, 47, 0.9));
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(100, 255, 218, 0.15);
    transition: var(--transition-normal);
}

.qrcode-placeholder:hover {
    border-color: rgba(100, 255, 218, 0.3);
    box-shadow: var(--shadow-glow);
}

.qrcode-placeholder i {
    font-size: 4.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.2rem;
    opacity: 0.85;
}

.qrcode-placeholder p {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.6rem;
    font-weight: 400;
}

.qrcode-placeholder small {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 300;
}

/* ========================================
   页脚 - 归于平静
   ======================================== */
.footer {
    background: var(--primary-dark);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(100, 255, 218, 0.08);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: var(--white);
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
    font-weight: 500;
    letter-spacing: -0.2px;
}

.footer-section h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    font-weight: 500;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.9;
    font-weight: 300;
    font-size: 0.95rem;
}

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

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

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    font-weight: 300;
    font-size: 0.95rem;
    display: inline-block;
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(100, 255, 218, 0.08);
    color: var(--text-muted);
    font-weight: 300;
    font-size: 0.9rem;
}

.footer-bottom p {
    margin: 0.5rem 0;
}

.icp-info {
    margin-top: 0.8rem;
}

.icp-info a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
    opacity: 0.7;
    font-size: 0.85rem;
}

.icp-info a:hover {
    color: var(--secondary-color);
    opacity: 1;
}

.footer-bottom a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition-fast);
    opacity: 0.8;
}

.footer-bottom a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* ========================================
   响应式设计 - 灵活适应
   ======================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-visual {
        height: 350px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .image-placeholder {
        height: 320px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 25, 47, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 4rem;
        transition: var(--transition-normal);
        gap: 2.5rem;
    }

    .nav-links.active {
        right: 0;
    }

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

    .lang-switcher {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        margin-top: 1rem;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .navbar-logo {
        height: 32px;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .image-placeholder {
        height: 280px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    section {
        padding: 80px 0;
    }

    .section-header h2 {
        font-size: 2.2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* 404页面移动端适配 */
    .error-code {
        font-size: 5rem;
    }
    
    .error-title {
        font-size: 2rem;
    }
    
    .error-message {
        font-size: 1.1rem;
    }
    
    .error-suggestion {
        font-size: 1rem;
    }
    
    .error-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .error-actions .btn {
        width: 80%;
        max-width: 300px;
    }
    
    .error-visual {
        height: 200px;
    }
    
    .error-visual .circle-1 {
        width: 200px;
        height: 200px;
    }
    
    .error-visual .circle-2 {
        width: 150px;
        height: 150px;
    }
    
    .error-visual .circle-3 {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .btn {
        padding: 0.8rem 1.8rem;
        font-size: 0.9rem;
        width: 100%;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .service-card {
        padding: 2rem 1.8rem;
    }

    .section-header h2 {
        font-size: 1.9rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }
    
    /* 404页面小屏幕适配 */
    .error-code {
        font-size: 4rem;
    }
    
    .error-title {
        font-size: 1.7rem;
    }
    
    .error-message {
        font-size: 1rem;
    }
    
    .error-suggestion {
        font-size: 0.9rem;
    }
}

/* ========================================
   404错误页面 - 空灵深远
   ======================================== */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

.error-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.error-code {
    font-size: 8rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    line-height: 1;
    background: linear-gradient(135deg, var(--secondary-color), var(--white));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.9;
    letter-spacing: -2px;
}

.error-title {
    font-size: 2.8rem;
    color: var(--white);
    margin-bottom: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.5px;
}

.error-message {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-weight: 300;
    line-height: 1.6;
}

.error-suggestion {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-weight: 300;
    line-height: 1.6;
}

.error-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.error-visual {
    position: relative;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
}

/* 404页面专用的圆环动画 */
.error-visual .tech-circle {
    position: absolute;
    border-radius: 50%;
    border-style: solid;
}

.error-visual .circle-1 {
    width: 280px;
    height: 280px;
    border-width: 3px;
    border-color: rgba(100, 255, 218, 0.4);
    animation: breathe 5s ease-in-out infinite;
    opacity: 0.6;
    box-shadow: 0 0 12px rgba(100, 255, 218, 0.2), inset 0 0 12px rgba(100, 255, 218, 0.1);
}

.error-visual .circle-2 {
    width: 220px;
    height: 220px;
    border-width: 2.5px;
    border-color: rgba(100, 255, 218, 0.35);
    animation: breathe 5s ease-in-out infinite 0.7s;
    opacity: 0.55;
    box-shadow: 0 0 10px rgba(100, 255, 218, 0.2), inset 0 0 10px rgba(100, 255, 218, 0.08);
}

.error-visual .circle-3 {
    width: 160px;
    height: 160px;
    border-width: 3px;
    border-color: rgba(100, 255, 218, 0.4);
    animation: breathe 5s ease-in-out infinite 1.4s;
    opacity: 0.6;
    box-shadow: 0 0 15px rgba(100, 255, 218, 0.25), inset 0 0 15px rgba(100, 255, 218, 0.1);
}

.error-visual .orbit-dot {
    position: absolute;
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, #ffffff 0%, #64ffda 40%, rgba(100, 255, 218, 0.2) 70%);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(100, 255, 218, 1), 0 0 24px rgba(100, 255, 218, 0.5);
}

.error-visual .dot-1 {
    animation: orbit-1 18s linear infinite;
}

.error-visual .dot-2 {
    animation: orbit-2 15s linear infinite reverse;
}

.error-visual .dot-3 {
    animation: orbit-3 21s linear infinite;
}

@keyframes orbit-1 {
    from { 
        transform: rotate(0deg) translateX(140px) rotate(0deg);
    }
    to { 
        transform: rotate(360deg) translateX(140px) rotate(-360deg);
    }
}

@keyframes orbit-2 {
    from { 
        transform: rotate(0deg) translateX(110px) rotate(0deg);
    }
    to { 
        transform: rotate(360deg) translateX(110px) rotate(-360deg);
    }
}

@keyframes orbit-3 {
    from { 
        transform: rotate(0deg) translateX(80px) rotate(0deg);
    }
    to { 
        transform: rotate(360deg) translateX(80px) rotate(-360deg);
    }
}

/* ========================================
   滚动条美化 - 细腻优雅
   ======================================== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 5px;
    border: 2px solid var(--primary-dark);
}

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

/* ========================================
   选中文本 - 主题色高亮
   ======================================== */
::selection {
    background: rgba(100, 255, 218, 0.3);
    color: var(--white);
}

::-moz-selection {
    background: rgba(100, 255, 218, 0.3);
    color: var(--white);
}